subject:(Kinetic parameters)

Cornell University

1. Mak, KIn Teng. Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture.

Degree: M.S., Civil and Environmental Engineering, Civil and Environmental Engineering, 2012, Cornell University

URL: http://hdl.handle.net/1813/29377

► A recent study in our lab had suggested that aerobic oxidation of vinyl chloride (VC) was responsible for VC loss at extremely low oxygen concentrations… (more)

Subjects/Keywords: Kinetic Parameters; Vinyl Chloride; Mycobacterium

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mak, K. T. (2012). Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/29377

Chicago Manual of Style (16^th Edition):

Mak, KIn Teng. “Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture.” 2012. Masters Thesis, Cornell University. Accessed April 14, 2021. http://hdl.handle.net/1813/29377.

MLA Handbook (7^th Edition):

Mak, KIn Teng. “Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture.” 2012. Web. 14 Apr 2021.

Vancouver:

Mak KT. Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture. [Internet] [Masters thesis]. Cornell University; 2012. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1813/29377.

Council of Science Editors:

Mak KT. Determination Of Vinyl-Chloride Utilizing Kinetic Parameters Parameters For A Mycobacterium Strain And An Enrichment Culture. [Masters Thesis]. Cornell University; 2012. Available from: http://hdl.handle.net/1813/29377

Universidade Federal de Santa Maria

2. Daniéle Sausen Lunkes. INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS.

Degree: 2009, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2360

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The thrombogenic process that affects the hypertensive patient is associated with regulatory mechanisms present in the vascular endothelium. These mechanisms involve the release of a… (more)

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The thrombogenic process that affects the hypertensive patient is associated with regulatory mechanisms present in the vascular endothelium. These mechanisms involve the release of a endothelium-derived relaxing factor, ectonucleotidases and calcium ions. Considering that vasodilators act both on blood pressure and on homeostasis, we evaluated the interference of different vasodilators on platelet NTPDase activity in hypertensive and healthy patients, with the objective of verifying patient sensitivity to vasodilators. In addition, the kinetic behavior of NTPDase was determined in the presence of the vasodilator that showed the greatest inhibitory influence. The results showed a decrease in NTPDase activity in the presence of arginine (0.025 mM 3.0 mM), sodium nitroprusside (0.01 mM 2.0 mM) and hydralazine (20.0 μM 90.0 μM), when tested for ATP and ADP substrate. However, the hydrolysis of ATP and ADP substrates increased when tested in the presence of arginine in the control group. No effects on enzyme activities were observed when pharmacological doses of captopril were tested in vitro. Kinetic behavior studies were estimated in the presence of sodium nitroprusside, which caused a mixed inhibition. The Km values increased and Vmax decreased with increasing sodium nitroprusside concentrations. The IC50 values were 3.66 mM and 2.64 mM (control group) and 2.08 mM and 3.15 mM (hypertensive group) for ATP and ADP, respectively. The Ki values obtained were 0.345 mM and 2.00 mM for the control group and 0.167mM and 0.325 mM for the hypertensive group, using ATP and ADP as substrate, respectively. In conclusion, based on these results it is possible to speculate that there is an interaction between vasodilators, donors of nitric oxide, and the inhibition of adenine nucleotide hydrolysis on platelets of hipertensive patients.

O processo trombogênico que afeta os pacientes hipertensos está associado com mecanismos regulatórios presentes no endotélio vascular. Esses mecanismos envolvem o fator de relaxamento do endotélio, as ectonucleotidases e íons cálcio. Considerando que os vasodilatadores atuam em ambos, na pressão sangüínea e na homeostase, foi avaliada a interferência de diferentes vasodilatadores na atividade da NTPDase de plaquetas de hipertensos e pacientes saudáveis, com o objetivo de verificar a sensibilidade destes pacientes aos vasodilatadores. Além disso, foi determinado o comportamento cinético da NTPDase na presença do vasodilatador que apresentou maior influência inibitória. Os resultados mostraram uma diminuição na atividade da NTPDase na presença de arginina (0,025 mM 3.0 mM), nitroprussiato de sódio (0,01 2,0 mM) e hidralazina (20,0 μM 90,0 μM), quando testada para os substratos ATP e ADP em plaquetas do grupo hipertensos. Porém, a hidrólise dos substratos ATP e ADP aumentou quando testado na presença de arginina no grupo controle. Nenhum efeito foi observado sobre a atividade da enzima quando doses farmacológicas de captopril foram testadas in vitro. Estudos do comportamento…

Advisors/Committee Members: Maria Rosa Chitolina Schetinger, Vera Maria Morsch, Maria Beatriz Moretto, Cinthia Melazzo Andrade Mazzanti.

Subjects/Keywords: parâmetros cinéticos; NTPDase; vasodilatadores; hipertensão; BIOQUIMICA; vasodilators; Hypertension; NTPDase; kinetic parameters

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APA (6^th Edition):

Lunkes, D. S. (2009). INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2360

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lunkes, Daniéle Sausen. “INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS.” 2009. Thesis, Universidade Federal de Santa Maria. Accessed April 14, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2360.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lunkes, Daniéle Sausen. “INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS.” 2009. Web. 14 Apr 2021.

Vancouver:

Lunkes DS. INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2009. [cited 2021 Apr 14]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2360.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lunkes DS. INTERFERÊNCIA DE VASODILATADORES NA HIDRÓLISE DE NUCLEOTÍDEOS DA ADENINA EM PLAQUETAS DE PACIENTES HIPERTENSOS. [Thesis]. Universidade Federal de Santa Maria; 2009. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2360

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Maryland

3. Molintas, Henry. Gasification and Combustion of Large Char Particles and Tar.

Degree: Mechanical Engineering, 2015, University of Maryland

URL: http://hdl.handle.net/1903/17338

► Although diffusion is known to play an important role for gasification and combustion of large char particles, their effects on conversion rates, kinetic parameters and… (more)

▼ Although diffusion is known to play an important role for gasification and combustion of large char particles, their effects on conversion rates, kinetic parameters and other relevant factors have not been thoroughly analyzed. Similarly, tar reduction is not yet well understood. Central to these challenges is the shortage of experimental data for reduction of tar and large char particles. Likewise, analytical models for reduction processes have not been systematically examined. In this study, large char particles between 1.5 to 7 mm are gasified and combusted non-isothermally with initial temperatures up to 1000 degree celcius using various oxidants. Tar is also reduced with steam and vitiated air continuously and non-isothermally. In the absence of mathematical tools for large particle reduction analysis, models are proposed and derived in this study. Carbon and large near-spherically or irregularly shaped particles are modeled as large disk-shaped and spherically-shaped particles, respectively. One-film ash segregated core and random pore models are explored to analyze char reduction data and these are found to provide consistent and inconsistent results, respectively. Thiele analysis is also used and it indicates that less porous particles are consumed more externally at the surface than internally. For C + O2⇒ CO2 reductions, disk-shaped particles ignite when reactor temperature reaches 584 degree and these processes are purely kinetic controlled for 1.5 mm thick samples. Reduction of spherically-shaped particles shows that O2 enrichment as compared to a 50 degree celcius rise in reactor temperature substantially improves conversion. Oxygen enrichment with steam also significantly increases conversion of 5.5 mm thick disk-shaped particle up to 600 % under identical reactor conditions. For C + CO2⇒2CO reductions, conversion rates increased five-fold when reactor temperature is increased from 850 to 1000 degree Celsius. Increasing initial reactor temperatures and O2 enrichment provide an increase in char reactivity, diffusional rate, conversion, reduction rate and surface temperature. Most of the large particle reductions investigated here operate near kinetic-diffusion controlled regime. Calculated total energy released during combustion is within the range of Dulong’s empirical formula. At higher tar concentrations, CO and H2 production moderately increase between 814 to 875 degree celsius. Advisors/Committee Members: Gupta, Ashwani K (advisor).

Subjects/Keywords: Mechanical engineering; combustion; diffusion; gasification; kinetic parameters; large char particles; tar

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APA (6^th Edition):

Molintas, H. (2015). Gasification and Combustion of Large Char Particles and Tar. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/17338

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Molintas, Henry. “Gasification and Combustion of Large Char Particles and Tar.” 2015. Thesis, University of Maryland. Accessed April 14, 2021. http://hdl.handle.net/1903/17338.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Molintas, Henry. “Gasification and Combustion of Large Char Particles and Tar.” 2015. Web. 14 Apr 2021.

Vancouver:

Molintas H. Gasification and Combustion of Large Char Particles and Tar. [Internet] [Thesis]. University of Maryland; 2015. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1903/17338.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Molintas H. Gasification and Combustion of Large Char Particles and Tar. [Thesis]. University of Maryland; 2015. Available from: http://hdl.handle.net/1903/17338

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

4. Song, Yang. Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating.

Degree: MS, Food Science and Technology, 2016, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461274469

► The purpose of this study was to evaluate the antifungal efficacy of the natamycin- shellac coating on commercially washed eggs and pasteurized eggs. Eggs were… (more)

Subjects/Keywords: Food Science; Natamycin, Shell Eggs, Antifungal, Modeling, Kinetic Parameters

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Song, Y. (2016). Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1461274469

Chicago Manual of Style (16^th Edition):

Song, Yang. “Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating.” 2016. Masters Thesis, The Ohio State University. Accessed April 14, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461274469.

MLA Handbook (7^th Edition):

Song, Yang. “Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating.” 2016. Web. 14 Apr 2021.

Vancouver:

Song Y. Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating. [Internet] [Masters thesis]. The Ohio State University; 2016. [cited 2021 Apr 14]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461274469.

Council of Science Editors:

Song Y. Protection of Washed and Pasteurized Shell Eggs against Fungal Growth by Application of Natamycin-Containing Shellac Coating. [Masters Thesis]. The Ohio State University; 2016. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461274469

5. Silva, Cinthia Aparecida de Andrade. Fisiologia de 15 leveduras em diferentes condições de cultivo.

Degree: 2017, Universidade Federal da Grande Dourados; Programa de pós-graduação em Biotecnologia e Biodiversidade; UFGD; Brasil; Faculdade de Ciências Biológicas e Ambientais

URL: http://repositorio.ufgd.edu.br/jspui/handle/prefix/506

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Made available in DSpace on 2019-04-08T20:55:08Z (GMT). No.… (more)

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Submitted by Alison Souza ([email protected]) on 2019-04-08T20:55:08Z No. of bitstreams: 1 CinthiaAparecidadeAndradeSilva.pdf: 3820821 bytes, checksum: d41b9785ec4d34569c4afeaf436f9877 (MD5)

Made available in DSpace on 2019-04-08T20:55:08Z (GMT). No. of bitstreams: 1 CinthiaAparecidadeAndradeSilva.pdf: 3820821 bytes, checksum: d41b9785ec4d34569c4afeaf436f9877 (MD5) Previous issue date: 2017-06-20

Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul (FUNDECT)

A bioprospecção de novas cepas de leveduras é importante devido à grande biodiversidade existente na natureza e ainda pouco explorada. A região Centro-Oeste devido as suas características ambientais são favoráveis à presença de microrganismos, como as leveduras, sendo um ambiente propício para a bioprospecção de novas linhagens. Além disso, a região possui várias usinas e destilarias, no qual durante o processo fermentativo estão presentes várias cepas de leveduras selvagens. O estudo fisiológico de novas cepas se torna importante para o estabelecimento de novas plataformas microbianas com diferentes aplicações biotecnológicas. No primeiro capítulo é apresentado uma introdução geral sobre o trabalho. No segundo capítulo é feita uma revisão da utilização dos parâmetros cinéticos como ferramenta para estudos fisiológicos em leveduras. No terceiro capítulo, foi avaliada a fisiologia de Saccharomyces cerevisiae CAT-1, 3 leveduras isoladas de usina de açúcar e álcool e 11 leveduras isoladas de frutos da Região Centro-Oeste, utilizando-se frutose (10 g L-1) como única fonte de carbono, em aerobiose. As linhagens que apresentaram maior velocidade específica de crescimento máxima (µmax) foram a isoladas de mosto (valores entre 0,47 e 0,49 h-1). Entre as linhagens isoladas de frutos, Candida parapsilosis Recol 29 apresentou µmax superior (0,44 h-1). S. cerevisiae CAT-1 (3,02 h-1), S. cerevisiae BB9 (3,01 h-1) e Candida glabrata Recol 41 (2,52 h- 1) se destacaram em termos de µS. C. parapsilosis Recol 29 e Rhodotorula mucilaginosa Recol 03 foram as que apresentaram maior YX/S. A análise de YP/S indicou que C. glabrata Recol 10 e S. cerevisiae BB9 se destacaram (0,44 e 0,41 gEth gS-1, respectivamente). Por fim, no quarto capítulo foi analisado a fisiologia de S. cerevisiae CAT-1 e de outras 13 leveduras isoladas da Região Centro-Oeste, por meio de parâmetros cinéticos obtidos a partir de cultivos com 3 diferentes fontes únicas de carbono (glicose, frutose ou sacarose), em condições de anaerobiose. Em glicose, S. cerevisiae CAT-1 se destacou, pois apresentou os maiores valores de µmax (0,35 h-1), µS (3,06 h-1) e Peth (0,69 gEth L-1 h-1). Candida glabrata Recol 43 e C. glabrata Recol 10 se destacaram pelo rápido consumo de substrato, formação de etanol e biomassa. Meyerozyma guilliermondii Recol 09, Candida parapsilosis Recol 12, Candida parapsilosis Recol 37 e Isolado Recol 42 apresentaram maiores tempo de cultivo. Assim como em glicose, S. cerevisiae CAT-1 se sobressaiu em relação as demais linhagens em…

Advisors/Committee Members: Fonseca, Gustavo Graciano, Batistote, Margareth, Leite, Rodrigo Simões Ribeiro, Paz, Marcelo Fossa da, Pizato, Sandriane.

Subjects/Keywords: CNPQ::CIENCIAS BIOLOGICAS; Bioprospecção; Levedura; Parâmetros cinéticos; Bioprospecting; Yeasts; Kinetic parameters

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, C. A. d. A. (2017). Fisiologia de 15 leveduras em diferentes condições de cultivo. (Doctoral Dissertation). Universidade Federal da Grande Dourados; Programa de pós-graduação em Biotecnologia e Biodiversidade; UFGD; Brasil; Faculdade de Ciências Biológicas e Ambientais. Retrieved from http://repositorio.ufgd.edu.br/jspui/handle/prefix/506

Chicago Manual of Style (16^th Edition):

Silva, Cinthia Aparecida de Andrade. “Fisiologia de 15 leveduras em diferentes condições de cultivo.” 2017. Doctoral Dissertation, Universidade Federal da Grande Dourados; Programa de pós-graduação em Biotecnologia e Biodiversidade; UFGD; Brasil; Faculdade de Ciências Biológicas e Ambientais. Accessed April 14, 2021. http://repositorio.ufgd.edu.br/jspui/handle/prefix/506.

MLA Handbook (7^th Edition):

Silva, Cinthia Aparecida de Andrade. “Fisiologia de 15 leveduras em diferentes condições de cultivo.” 2017. Web. 14 Apr 2021.

Vancouver:

Silva CAdA. Fisiologia de 15 leveduras em diferentes condições de cultivo. [Internet] [Doctoral dissertation]. Universidade Federal da Grande Dourados; Programa de pós-graduação em Biotecnologia e Biodiversidade; UFGD; Brasil; Faculdade de Ciências Biológicas e Ambientais; 2017. [cited 2021 Apr 14]. Available from: http://repositorio.ufgd.edu.br/jspui/handle/prefix/506.

Council of Science Editors:

Silva CAdA. Fisiologia de 15 leveduras em diferentes condições de cultivo. [Doctoral Dissertation]. Universidade Federal da Grande Dourados; Programa de pós-graduação em Biotecnologia e Biodiversidade; UFGD; Brasil; Faculdade de Ciências Biológicas e Ambientais; 2017. Available from: http://repositorio.ufgd.edu.br/jspui/handle/prefix/506

6. Zimmer, Leonardo. Modelagem da combustão de carvão em um forno de queda livre.

Degree: 2012, Brazil

URL: http://hdl.handle.net/10183/61397

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O estudo de parâmetros cinéticos para a queima de carvão se dá através de utilização de equipamentos laboratoriais como o forno de queda livre (DTF).… (more)

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O estudo de parâmetros cinéticos para a queima de carvão se dá através de utilização de equipamentos laboratoriais como o forno de queda livre (DTF). O presente trabalho trata do desenvolvimento e análise de um modelo numérico unidimensional de um DTF. A modelagem é realizada a partir de dados da literatura, e as equações discretizadas que caracterizam os fenômenos do escoamento, da transferência de calor e da combustão do carvão foram programadas na linguagem FORTRAN 90. Os resultados são comparados com um modelo de referência e com dados experimentais, e apresentaram boa concordância. Um estudo de sensibilidade é realizado para entender o comportamento da queima de carvão frente a mudanças de alguns parâmetros de operação do DTF. A análise de sensibilidade mostrou a versatilidade do modelo e, consequentemente, do experimento. A partir da variação da concentração de O2, da temperatura de operação e das vazões de entrada pode-se obter uma gama de resultados. O uso do modelo aqui apresentado concomitante com resultados experimentais resulta em um estudo aprofundado dos parâmetros cinéticos de combustão de carvão.

The study of kinetic parameters for coal combustion occurs through use of laboratory equipment such as drop tube furnace (DTF). The present work shows the development and analysis of a one-dimensional numerical model of a DTF. The modeling is developed from literature works, and the discrete equations that characterize the flow, heat transfer and coal combustion are programmed in FORTRAN 90 language. The results are compared with a reference model and experimental data, and showed good agreement. A sensitivity study is performed to understand the behavior of coal combustion due to changes of some working parameters of the DTF. The sensitivity analysis showed the versatility of the model and thereby the experiment. From the variation of the O2 concentration, operating temperature and input flow rates a range of results can be obtained. Using the model presented here together with experimental results leads to a detailed study of the kinetic parameters of coal combustion.

Advisors/Committee Members: Schneider, Paulo Smith.

Subjects/Keywords: Métodos numéricos; Combustão; Carvão; Combustion; Drop tube furnace; Kinetic parameters; Coal

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zimmer, L. (2012). Modelagem da combustão de carvão em um forno de queda livre. (Masters Thesis). Brazil. Retrieved from http://hdl.handle.net/10183/61397

Chicago Manual of Style (16^th Edition):

Zimmer, Leonardo. “Modelagem da combustão de carvão em um forno de queda livre.” 2012. Masters Thesis, Brazil. Accessed April 14, 2021. http://hdl.handle.net/10183/61397.

MLA Handbook (7^th Edition):

Zimmer, Leonardo. “Modelagem da combustão de carvão em um forno de queda livre.” 2012. Web. 14 Apr 2021.

Vancouver:

Zimmer L. Modelagem da combustão de carvão em um forno de queda livre. [Internet] [Masters thesis]. Brazil; 2012. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10183/61397.

Council of Science Editors:

Zimmer L. Modelagem da combustão de carvão em um forno de queda livre. [Masters Thesis]. Brazil; 2012. Available from: http://hdl.handle.net/10183/61397

7. Santhi, Thirumani S. Heterotrophic bacterial activity in selected aquaculture systems near cochin.

Degree: 1992, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/3604

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The principal interest of the present investigation was to determine seasonal and vertical variation of chemoorganotrophic utilisation of glucose and sodium—acetate by the natural bacterial… (more)

Subjects/Keywords: Kinetic parameters; Environmental variables; Phytoplankton related results; Bacterial parameters

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Santhi, T. S. (1992). Heterotrophic bacterial activity in selected aquaculture systems near cochin. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/3604

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Santhi, Thirumani S. “Heterotrophic bacterial activity in selected aquaculture systems near cochin.” 1992. Thesis, Cochin University of Science and Technology. Accessed April 14, 2021. http://dyuthi.cusat.ac.in/purl/3604.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Santhi, Thirumani S. “Heterotrophic bacterial activity in selected aquaculture systems near cochin.” 1992. Web. 14 Apr 2021.

Vancouver:

Santhi TS. Heterotrophic bacterial activity in selected aquaculture systems near cochin. [Internet] [Thesis]. Cochin University of Science and Technology; 1992. [cited 2021 Apr 14]. Available from: http://dyuthi.cusat.ac.in/purl/3604.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Santhi TS. Heterotrophic bacterial activity in selected aquaculture systems near cochin. [Thesis]. Cochin University of Science and Technology; 1992. Available from: http://dyuthi.cusat.ac.in/purl/3604

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

8. Swanepoel, Christiaan Johann. A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae.

Degree: MSc, Biochemistry, 2018, Stellenbosch University

URL: http://hdl.handle.net/10019.1/103716

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ENGLISH ABSTRACT: Kinetic modelling of biological phenomena in an attempt to understand the underlying dynamics and complexity of life is becoming an indispensable tool to… (more)

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ENGLISH ABSTRACT: Kinetic modelling of biological phenomena in an attempt to understand the underlying dynamics and complexity of life is becoming an indispensable tool to systems biology. A new paradigm of mathematical and computational integration of experimental data has shifted the focus in biological sciences from mere characterisation and cataloguing of the components of life, to a more holistic view. The functioning of these components in dynamic interactions in non-linear biochemical networks is now a major field of interest for many biologists. Classically, enzyme kinetic assays are optimised for yielding the maximal activity of the enzyme of interest. This raises the question of how applicable the obtained kinetic parameters are for systems biology, especially when considering how the intracellular reality (in terms of pH and ionic strength and composition) affects the catalytic activity of enzymes in vivo. Another concern is how accurate and predictive the kinetic models, constructed from such obtained data, can be. Much effort has been directed towards the standardisation of enzyme kinetics for systems biology and in vivo-like assay media have been developed for the determination of enzyme kinetic parameters in both Escherichia coli and Saccharomyces cerevisiae. However, the effect of pH changes on kinetic parameters of enzymes, has been somewhat neglected in systems biology studies. With this in mind we investigated the quantitative effects elicited by pH changes on the upper glycolytic enzymes in Escherichia coli and Saccharomyces cerevisiae using NMR spectroscopy. This is especially important as recent studies have shown that intracellular pH, while remaining a tightly homeostatically controlled parameter, is not as constant as once thought and has been shown to vary in response to environmental perturbation. The investigation focused on parameter estimation and the unique identifiability of the estimated parameters. The main aim of this project is the development of a robust, reliable technique for parameter identification from experimental data using mathematical and computational approaches.

AFRIKAANSE OPSOMMING: In ’n poging om die onderliggende dinamika en kompleksiteit van die lewe beter te verstaan, raak kinetiese modellering van biologiese fenomene ’n onontbeerlike instrument vir sisteembiologie. ’n Nuwe paradigma van wiskundige en rekenaarmatige integrasie van eksperimentele data het die fokus in biologiese wetenskappe verskuif van blote karakterisering en katalogisering van die komponente van die lewe, na ’n meer holistiese siening. Die funksionering van hierdie komponente in dinamiese interaksies in nie-lineêre biochemiese netwerke raak ’n belangrike navorsingsveld vir baie bioloë. Histories is ensiem-kinetiese essai’s geoptimeer vir maksimale aktiwiteit van die betrokke ensiem. Dit laat die vraag ontstaan hoe toepasbaar die verkrygde kinetiese parameters is in terme van sisteembiologie, veral as in ag geneem word hoe die intrasellulêre werklikheid (in…

Advisors/Committee Members: Rohwer, J. M., Stellenbosch University. Faculty of Science. Dept. of Biochemistry..

Subjects/Keywords: Glycolytic enzymes; Escherichia coli; Saccharomyces cerevisiae; pH changes on kinetic parameters of enzymes; UCTD

10 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Swanepoel, C. J. (2018). A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae. (Masters Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/103716

Chicago Manual of Style (16^th Edition):

Swanepoel, Christiaan Johann. “A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae.” 2018. Masters Thesis, Stellenbosch University. Accessed April 14, 2021. http://hdl.handle.net/10019.1/103716.

MLA Handbook (7^th Edition):

Swanepoel, Christiaan Johann. “A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae.” 2018. Web. 14 Apr 2021.

Vancouver:

Swanepoel CJ. A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae. [Internet] [Masters thesis]. Stellenbosch University; 2018. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10019.1/103716.

Council of Science Editors:

Swanepoel CJ. A systematic investigation into the quantitative effect of pH changes on the upper glycolytic enzymes of Escherichia coli and Saccharomyces cerevisiae. [Masters Thesis]. Stellenbosch University; 2018. Available from: http://hdl.handle.net/10019.1/103716

Utah State University

9. Dhanasekaran, Arockia R. A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters.

Degree: PhD, Computer Science, 2011, Utah State University

URL: https://digitalcommons.usu.edu/etd/1097

► In the post-genomic era, there is a dire need for tools to perform metabolic analyses that include the structural, functional, and regulatory analysis of… (more)

▼ In the post-genomic era, there is a dire need for tools to perform metabolic analyses that include the structural, functional, and regulatory analysis of metabolic networks. This need arose because of the lag between the two phases of metabolic engineering, namely, synthesis and analysis. Molecular biological tools for synthesis like recombinant DNA technology and genetic engineering have advanced a lot farther than tools for systemic analysis. Consequently, bioinformatics is poised to play an important role in bridging the gap between the two phases of metabolic engineering, thereby accelerating the improvement of organisms by using predictive simulations that can be done in minutes rather than mutant constructions that require weeks to months. In addition, metabolism occurs at a rapid speed compared to other cellular activities and has two states, dynamic state and steady state. Dynamic state analysis sheds more light on the mechanisms and regulation of metabolism than its steady state counterpart. Currently, several in silico tools exist for steady-state analysis of metabolism, but tools for dynamic analysis are lacking. This research focused on simulating the dynamic state of metabolism for predictive analysis of the metabolic changes in an organism during metabolic engineering. The goals of this research were accomplished by developing two software tools. Metabolome Searcher, a web-based high throughput tool, facilitates putative compound identification and metabolic pathway mapping of mass spectrometry data by applying genome-restriction. The second tool, DynaFlux, uses these compound identifications along with time course data obtained from a mass spectrometer in conjunction with the pathways of interest to simulate and estimate dynamic-state metabolic flux, as well as to analyze the network properties. The features available in DynaFlux are: 1) derivation of the metabolic reconstructions from Pathway Tools software for the simulation; 2) automated building of the mathematical model of the metabolic network; 3) estimation of the kinetic parameters, KR, v, Vmaxf, Vmaxr, and Kdy, using hybrid-mutation random-restart hill climbing search; 4) perturbation studies of enzyme activities; 5) enumeration of feasible routes between two metabolites; 6) determination of the minimal enzyme set and dispensable enzyme set; 7) imputation of missing metabolite data; and 8) visualization of the network. Advisors/Committee Members: Bart C. Weimer, Donald H. Cooley, Nicholas S. Flann, ;.

Subjects/Keywords: synamic state metabolic journey; mass spectrometry; network analysis; kinetic parameters; Computer Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dhanasekaran, A. R. (2011). A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters. (Doctoral Dissertation). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/1097

Chicago Manual of Style (16^th Edition):

Dhanasekaran, Arockia R. “A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters.” 2011. Doctoral Dissertation, Utah State University. Accessed April 14, 2021. https://digitalcommons.usu.edu/etd/1097.

MLA Handbook (7^th Edition):

Dhanasekaran, Arockia R. “A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters.” 2011. Web. 14 Apr 2021.

Vancouver:

Dhanasekaran AR. A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters. [Internet] [Doctoral dissertation]. Utah State University; 2011. [cited 2021 Apr 14]. Available from: https://digitalcommons.usu.edu/etd/1097.

Council of Science Editors:

Dhanasekaran AR. A Dynamic State Metabolic Journey: From Mass Spectrometry to Network Analysis via Estimation of Kinetic Parameters. [Doctoral Dissertation]. Utah State University; 2011. Available from: https://digitalcommons.usu.edu/etd/1097

10. Tâmira Tácita Maia Rodrigues. Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos.

Degree: 2017, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-150210/

►

A crescente necessidade de se obter fontes de energia e materiais mais sustentáveis tem aumentado o interesse em processos baseados na conversão de biomassa. Microalgas… (more)

▼

A crescente necessidade de se obter fontes de energia e materiais mais sustentáveis tem aumentado o interesse em processos baseados na conversão de biomassa. Microalgas são particularmente interessantes por não competirem com alimentos e serem facilmente adaptáveis ao meio de crescimento. Além disso, microalgas podem ser processadas termicamente para geração tanto de biocombustíveis quanto de produtos químicos úteis. Estudos de conversão térmica de microalgas tem aparecido apenas em anos recentes, endereçando principalmente temperaturas entre 350 e 500 ºC. Neste estudo, a pirólise em temperaturas entre 500 e 900 ºC foi avaliada pelo interesse em se obter biocombustíveis e produtos químicos úteis. As classes de compostos obtidos a partir da pirólise isotérmica da microalga da espécie Chlorella vulgaris foram investigadas através de um sistema composto por um pirolisador conectado a um CG/MS. Dentre as classes identificadas, houve uma predominância de compostos aromáticos e nitrogenados, principalmente derivados de proteínas. Além disso, a maioria dos compostos identificados na corrente de produtos voláteis está presente em todas as temperaturas de reação estudadas. Os parâmetros cinéticos de energia de ativação aparente, constante de reação e ordem de reação foram determinados através de três modelos cinéticos conhecidos como K-A-S, Osawa e Freeman-Carroll, a partir de dados termogravimétricos. A energia de ativação determinada para Chlorella apresentou valores entre 60 e 206 kJ/mol, enquanto a ordem de reação teve como resultado valores entre segunda e décima ordem, de acordo com o modelo cinético.

The increasing need to obtain more sustainable sources of energy and raw materials has attracted attention to processes based on biomass conversion. Microalgae are particularly interesting because they do not compete with human food and they are easily adaptable to the growth medium. Besides, microalgae can be thermally processed to produce both biofuels and useful chemicals. Studies on thermal conversion of microalgae have appeared only in recent years, addressing mainly reaction temperatures between 350 and 500 °C. In this study, pyrolysis in temperatures ranging from 500 to 900 ºC have been investigated considering the interest in producing biofuels and useful chemical compounds. The classes of products obtained by isothermal pyrolysis of the Chlorella vulgaris microalgae have been investigated using a pyrolyzer directly connected to a GC/MS system. Among the classes identified, there was a predominance of aromatic and nitrogenous compounds, mainly protein derived compounds. In addition, most products identified in the volatile products stream are present in all reaction temperatures investigated. The kinetic parameters of apparent activation energy, reaction constant and order of reaction were determined through three kinetic models known as K-A-S, Osawa and Freeman-Carroll, calculated from thermogravimetric data. The activation energy for Chlorella presented values within the range of 60 and 206 kJ/mole,…

Advisors/Committee Members: Marcelo Martins Seckler, Cláudio Augusto Oller do Nascimento, João Guilherme Rocha Poço, Carlos Alberto da Silveira.

Subjects/Keywords: Chlorella; Microalgas; Parâmetros cinéticos; Pirólise; Termogravimetria; Chlorella; Kinetic parameters; Microalgae; Pyrolysis; Thermogravimetric analysis

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rodrigues, T. T. M. (2017). Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-150210/

Chicago Manual of Style (16^th Edition):

Rodrigues, Tâmira Tácita Maia. “Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos.” 2017. Doctoral Dissertation, University of São Paulo. Accessed April 14, 2021. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-150210/.

MLA Handbook (7^th Edition):

Rodrigues, Tâmira Tácita Maia. “Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos.” 2017. Web. 14 Apr 2021.

Vancouver:

Rodrigues TTM. Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos. [Internet] [Doctoral dissertation]. University of São Paulo; 2017. [cited 2021 Apr 14]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-150210/.

Council of Science Editors:

Rodrigues TTM. Estudo da pirólise da microalga Chlorrella Vulgaris: determinação das classes de produtos e dos parâmetros cinéticos. [Doctoral Dissertation]. University of São Paulo; 2017. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-150210/

NSYSU

11. Peng, Yi-wei. Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter.

Degree: Master, Environmental Engineering, 2008, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0827108-162825

► This study combined photocatalytic technology with activated carbon cellulose-paper filter (ACCF) adsorption to decompose gaseous pollutants. Gaseous pollutants were initially adsorbed by activated carbon and… (more)

▼ This study combined photocatalytic technology with activated carbon cellulose-paper filter (ACCF) adsorption to decompose gaseous pollutants. Gaseous pollutants were initially adsorbed by activated carbon and could be further decomposed by photocatalytic technology. This study selected acetone (CH3COCH3) as gaseous pollutants. Two market available photocatalysts (photocatalystsâ andâ¡) were coated on ACCF by impregnation to decompose acetone in a batch photocatlytic reactor. Operating parameters investigated in this study included initial acetone concentration (4.1~10.2 Î¼M), reaction temperature (40~70â), and water vapor (0~20 %). The incident UV light of 365 nm was irradiated by a 20-watt low-pressure mercury lamp placing above the batch photocatalytic reactor. The ACCF coated with TiO2 was placed at the center of the photocatalytic reactor. Acetone was injected into the reactor by a gasket syringe to conduct the photocatalytic tests. Reactants and products were analyzed quantitatively by a gas chromatography with an electron capture detector (GC/DCD) and a flame ionization detector followed by a methaneizer (GC/FID-Methaneizer). Finally, a Langmiur-Hinshewood (L-H) kinetic model was proposed to describe the rate of photocatalytic reaction. Results obtained from the photocatalytic tests indicated that photocatalystâ¡ was better than photocatalystâ for the decomposition of acetone. Experimental results indicated that the size range of self-produced TiO2 photocatalyst by sol-gel was 20~70 nm. The end products were mainly CO and CO2, which resulted in the mineralization ratio up to 98%. Results obtained from the operating parameter tests revealed that the increase of initial acetone concentration enhanced the amount of acetone adsorbed on ACCF, which however did not increase the reaction rate of acetone. Although the increase of reaction temperature could reduce the amount of acetone adsorbed on ACCF, the decomposition rate of acetone could be promoted, so as the yield rate and mineralization ratio of products (CO and CO2). The increase of water vapor could slightly decrease the amount of acetone adsorbed on ACCF. The competitive adsorption phenomenon between acetone and water molecules on active sites could decelerate the decomposion of acetone. Moreover, the ACCF would not be saturated since the adsorbed acetone could be further decomposed quickly by the photocatalysts, which made the TiO2/ACCF more effective on removing acetone and lasted longer than the conventional ACCF. Finally, a modified bimolecular Langmuir-Hinshelwood kinetic model was developed to investigate the influences of initial acetone concentration reaction, temperature, and relative humidity on the promotion and inhibition for the photocatalytic oxidation of acetone. The modified L-H kinetic model could successfully simulate the photocatalytic reaction rate of acetone. Thus, the reaction rate of acetone over TiO2/ACCF could be described by the modified L-H kinetic model. Advisors/Committee Members: Yung-hsu Hsieh (chair), Chung-shin Yuan (committee member), Chung-hsuang Hung (chair), Cheng-di Dong (chair), Cheng-di Dong (chair), Cheng-di Dong (chair).

Subjects/Keywords: L-H kinetic model; photocatalytic reaction; activated carbon cellulose-paper filter (ACCF); operating parameters; titanium dioxide (TiO2) photocatalyst; acetone decomposition

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Peng, Y. (2008). Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0827108-162825

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Peng, Yi-wei. “Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter.” 2008. Thesis, NSYSU. Accessed April 14, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0827108-162825.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Peng, Yi-wei. “Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter.” 2008. Web. 14 Apr 2021.

Vancouver:

Peng Y. Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter. [Internet] [Thesis]. NSYSU; 2008. [cited 2021 Apr 14]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0827108-162825.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peng Y. Decomposition of Acetone by Nano-sized Photocatalysts Coated on Activated Carbon Cellulose-paper Filter. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0827108-162825

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

12. Li, Wan-Hua. Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone.

Degree: Master, Environmental Engineering, 2010, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-204213

► The study combined photoelectrocatalytic technology (PEC) with electrical glassfiber filter (EGF) to decompose volatile organic compounds (VOCs). External electrical voltage was applied to retard the… (more)

▼ The study combined photoelectrocatalytic technology (PEC) with electrical glassfiber filter (EGF) to decompose volatile organic compounds (VOCs). External electrical voltage was applied to retard the recombination of electron-electron hole pairs and increase the surface temperature of the photocatalysts coated on the electrical glassfiber filter, which could further decompose VOCs more effectively via photoelectrocatalytic technology. Acetone was selected as the gasous pollutant for this particular study. A commercial TiO2 photocatalyst (AG-160) was coated on GFF via impregnation to decompose acetone in a batch PEC reactor. Operation parameters investigated in this study included acetone concentration (50~400 ppm), electrical voltage (0~6,500V), water content (0~20,000 ppm), reaction temperature (40â~80â).The incident UV light of 365 nm wavelength was irradiated by three 15-wat low pressure mercury lamps (Î»=365 nm) placing above the batch PEC reactor. The TiO2-coated EGF was placed at the center of the batch PEC reactor. Acetone was injected into the reactor by a gasket syringe to conduct the PEC decomposition test. Acetone was analyzed quantitatively by a gas chromatography with a flame ionization detector (GC/FID). Finally, a Langmuir-Hinshelwood kinetic (L-H) model was proposed to simulate the PEC reaction rate of acetone. Experimental results showed that the size range of the self-produced nano-sized photocatalyst prepared by sol-gel was 35~50 nm. Three duplicate tests of PC and PEC degradation of acetone indicated that TiO2 was not deactivated during the PC and PCE reactions, hence TiO2 can be reused in the experiments. Results obtained from the PC and PEC degradation experiments indicated that the PEC reaction rate was higher than the PC reaction rate.The PEC reaction rate increased with applied electrical voltage, and the highest decomposition efficiency occurred at 6,500 V. Electrical field generated by the differences of electrical voltage can effectively enhance the oxidation capability of TiO2 since electron (e-) can be conducted to retard the recombination of electron and electron hole pairs. Both PC and PEC technologies could be used to decompose acetone. Among them, PEC had highter decomposition efficiency of acetone than PC up to 34%. Rsults obtained from the operation parameter tests reaveled that raising electrical voltage could enhance the decomposition efficiency of acetone only for electrical voltages above 2,000 V. However, the decomposition efficiency of acetone tended to level off as electrical voltage became higher. Zero-order reaction rate of the PEC reaction was observed for initial acetone concentration of 100~400 ppm, while the PEC reaction decreased gradually for initial acetone concentration reaction below 100 ppm. It revealed that the PEC reaction was pseudo ozero-order for initial acetone concentration of 100~400 ppm, and pseudo first-order reaction for acetone concentration below 100 ppm. Additionally, the PC reaction rate increased with temperature at 45-80â. However the PEC… Advisors/Committee Members: Ming-Shean Chou (chair), Chung-Shin Yuan (committee member), Chung-Hsuang Hung (chair), Cheng-Di Dong (chair).

Subjects/Keywords: Langmuir-Hinshelwood kinetic model; operation parameters; acetone decomposition efficiency; TiO2 photocatalyst; electrical glassfiber filter; photoelectrocatalytic reaction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Li, W. (2010). Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-204213

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li, Wan-Hua. “Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone.” 2010. Thesis, NSYSU. Accessed April 14, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-204213.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li, Wan-Hua. “Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone.” 2010. Web. 14 Apr 2021.

Vancouver:

Li W. Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone. [Internet] [Thesis]. NSYSU; 2010. [cited 2021 Apr 14]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-204213.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li W. Applicatiation of Electrical Fiberglass Filter Coated with Nano-sized TiO2 Photocatalyst on Photoelectrocatalytic Degradation of Acetone. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-204213

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

13. Chaves, Alexsandra Cristina. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini .

Degree: 2008, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12732

► The cerium oxide has a high potential for use in removing pollutants after combustion, removal of organic matter in waste water and the fuel-cell technology.… (more)

▼ The cerium oxide has a high potential for use in removing pollutants after combustion, removal of organic matter in waste water and the fuel-cell technology. The nickel oxide is an attractive material due to its excellent chemical stability and their optical properties, electrical and magnetic. In this work, CeO2-NiO- systems on molars reasons 1:1(I), 1:2(II) e 1:3(III) metal-citric acid were synthesized using the Pechini method. We used techniques of TG / DTG and ATD to monitor the degradation process of organic matter to the formation of the oxide. By thermogravimetric analysis and applying the dynamic method proposed by Coats-Redfern, it was possible to study the reactions of thermal decomposition in order to propose the possible mechanism by which the reaction takes place, as well as the determination of kinetic parameters as activation energy, Ea, pre-exponential factor and parameters of activation. It was observed that both variables exert a significant influence on the formation of complex polymeric precursor. The model that best fitted the experimental data in the dynamic mode was R3, which consists of nuclear growth, which formed the nuclei grow to a continuous reaction interface, it proposes a spherical symmetry (order 2 / 3). The values of enthalpy of activation of the system showed that the reaction in the state of transition is exothermic. The variables of composition, together with the variable temperature of calcination were studied by different techniques such as XRD, IV and SEM. Also a study was conducted microstructure by the Rietveld method, the calculation routine was developed to run the package program FullProf Suite, and analyzed by pseudo-Voigt function. It was found that the molar ratio of variable metal-citric acid in the system CeO2-NiO (I), (II), (III) has strong influence on the microstructural properties, size of crystallites and microstrain network, and can be used to control these properties Advisors/Committee Members: Melo, Dulce Maria de Araújo (advisor), CPF:06117988320 (advisor), http://lattes.cnpq.br/3318871716111536 (advisor), Oliveira, João Bosco Lucena de (advisor), CPF:19127537404 (advisor), http://lattes.cnpq.br/1360004695124740 (advisor).

Subjects/Keywords: Óxido de cério e óxido de níquel; Parâmetros cinéticos; Microdeformação; Óxide cerium and oxide nickel; Parameters kinetic; Microstrain

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chaves, A. C. (2008). Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12732

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chaves, Alexsandra Cristina. “Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini .” 2008. Thesis, Universidade do Rio Grande do Norte. Accessed April 14, 2021. http://repositorio.ufrn.br/handle/123456789/12732.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chaves, Alexsandra Cristina. “Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini .” 2008. Web. 14 Apr 2021.

Vancouver:

Chaves AC. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2008. [cited 2021 Apr 14]. Available from: http://repositorio.ufrn.br/handle/123456789/12732.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chaves AC. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini . [Thesis]. Universidade do Rio Grande do Norte; 2008. Available from: http://repositorio.ufrn.br/handle/123456789/12732

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

14. Sheila Isabel do Carmo Pinto. Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones.

Degree: 2009, UNIVERSIDADE FEDERAL DE LAVRAS

URL: http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=2319

► Os objetivos do presente trabalho foram avaliar a morfologia radicular, a produÃÃo de biomassa, a eficiÃncia nutricional, bem como determinar os parÃmetros cinÃticos (Vmax, Km… (more)

▼ Os objetivos do presente trabalho foram avaliar a morfologia radicular, a produÃÃo de biomassa, a eficiÃncia nutricional, bem como determinar os parÃmetros cinÃticos (Vmax, Km e Cmin) da absorÃÃo conjunta de P, K, Ca e Mg e analisar o influxo desses nutrientes em mudas de clones de eucalipto. O experimento foi conduzido em casa de vegetaÃÃo e cÃmara de crescimento do Departamento de CiÃncia do Solo da Universidade Federal de Lavras (MG), utilizando-se mudas de seis clones de eucalipto (58, 386, GG100, I042, I144 e VM1), cultivadas em soluÃÃo nutritiva. Os tratamentos, representados pelos seis clones, foram distribuÃdos em delineamento inteiramente casualizado, com quatro repetiÃÃes. ApÃs 45 dias de cultivo foram determinados os atributos do crescimento da parte aÃrea e raÃzes, produÃÃo de biomassa, eficiÃncias de absorÃÃo, translocaÃÃo e utilizaÃÃo dos macronutrientes, os parÃmetros cinÃticos de absorÃÃo e o influxo de P, K, Ca e Mg. Os clones de eucalipto diferiram entre si na produÃÃo de biomassa e na eficiÃncia nutricional, sendo identificadas diferenÃas na eficiÃncia de absorÃÃo, translocaÃÃo e utilizaÃÃo dos macronutrientes em relaÃÃo aos diferentes clones de eucalipto, bem como em funÃÃo do nutriente. De forma geral, os clones podem ser separados, quanto Ã eficiÃncia nutricional para os macronutrientes, na seguinte seqÃÃncia: I144 >386 >58 ≈ GG100 >VM1 >I042. O clone I144 mostrou-se mais eficiente nutricionalmente, principalmente para N, P, K, Mg e S, com maior eficiÃncia na absorÃÃo e utilizaÃÃo desses nutrientes na produÃÃo de biomassa. O clone I042 foi ineficiente tanto na absorÃÃo quanto na utilizaÃÃo de todos os macronutrientes, comprometendo sua produÃÃo de biomassa. O clone VM1 se destacou entre os demais clones, sendo o mais eficiente na translocaÃÃo de todos os macronutrientes para a parte aÃrea das mudas de eucalipto. Os atributos morfolÃgicos do sistema radicular variaram entre os clones de eucalipto. Os clones 386 e GG100 se destacaram em relaÃÃo aos demais, o primeiro por apresentar um sistema radicular mais desenvolvido e o segundo por apresentar um sistema radicular com desenvolvimento bastante restrito. O comportamento dos clones de eucalipto se mostrou bastante semelhante independente da variÃvel morfolÃgica radicular utilizada na obtenÃÃo da Vmax. Os parÃmetros cinÃticos de absorÃÃo variaram com os genÃtipos e com os nutrientes. O clone VM1 se destacou entre os clones de eucalipto estudados pela grande plasticidade, podendo se estabelecer mais facilmente em condiÃÃes com altos ou baixos teores de P e K, e pelos maiores influxos de P, K e Ca. O clone I042, contudo, apresentou os menores influxos para P, Ca e Mg, o que contribuiu para sua baixa produÃÃo de biomassa. A cinÃtica de absorÃÃo iÃnica de P, K, Ca e Mg, realizada de forma conjunta, permitiu a caracterizaÃÃo do influxo desses nutrientes pelos clones de eucalipto. As diferenÃas identificadas no presente trabalho quanto Ã eficiÃncia nutricional e o influxo de nutrientes pelos clones de eucalipto na fase de mudas sugerem a… Advisors/Committee Members: Valdemar Faquin, Janice Guedes de Carvalho, Antonio Eduardo Furtini Neto, Ãngela de FÃtima Barbosa Abreu, JÃlio CÃsar Lima Neves.

Subjects/Keywords: CIENCIA DO SOLO; Influxo de nutrientes; nutritional efficiency; EficiÃncia nutricional; influx of nutrients; Eucalipto.; ParÃmetros cinÃticos; Eucalyptus; Kinetic parameters

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APA (6^th Edition):

Pinto, S. I. d. C. (2009). Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones. (Thesis). UNIVERSIDADE FEDERAL DE LAVRAS. Retrieved from http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=2319

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pinto, Sheila Isabel do Carmo. “Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones.” 2009. Thesis, UNIVERSIDADE FEDERAL DE LAVRAS. Accessed April 14, 2021. http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=2319.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pinto, Sheila Isabel do Carmo. “Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones.” 2009. Web. 14 Apr 2021.

Vancouver:

Pinto SIdC. Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones. [Internet] [Thesis]. UNIVERSIDADE FEDERAL DE LAVRAS; 2009. [cited 2021 Apr 14]. Available from: http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=2319.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pinto SIdC. Joint uptake kinetics of phosphorus, potassium, calcium and magnesium and nutritional efficiency of macronutrients of eucalyptus clones. [Thesis]. UNIVERSIDADE FEDERAL DE LAVRAS; 2009. Available from: http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=2319

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

15. Raycroft, Mark. Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides .

Degree: Chemistry, 2016, Queens University

URL: http://hdl.handle.net/1974/14289

► Toward the efficient solvolysis of phosphate esters and amides under mild conditions, many small-molecule metal-containing catalysts have been designed to activate the substrate toward metal-mediated… (more)

▼ Toward the efficient solvolysis of phosphate esters and amides under mild conditions, many small-molecule metal-containing catalysts have been designed to activate the substrate toward metal-mediated nucleophilic addition. However, very few systems have been designed to also employ a metal ion to activate the leaving group (LG) toward departure. To this end, the following studies were undertaken to ascertain the magnitude and mechanism of metal ion-promoted leaving group assistance. The solvolysis of a specially-designed set of phosphate mono-, di-, and triesters, having a Cu(II)-complexed 2-phenanthrolyl group at the ortho-position of a departing phenoxide, was studied in water and ethanol under pH-controlled conditions at 25 °C. A combination of pH/rate profiles, solvent deuterium kinetic isotope effect (DKIE) values, and activation parameters were collected and compared to the results in methanol. While a detailed comparison of the activation parameters reveals complex trends due to changes in the reaction medium, the rate-accelerating effects of the Cu(II)-promoted leaving group assistance in all three solvents are substantial, ranging from 10⁵ to 10¹⁵ relative to their background reactions. The methanolysis of the Cu(II) complexes of a series of substituted N,N-bis(2-picolyl)benzamides was studied under sspH-controlled conditions at 25 °C. Hammett reaction constants, solvent DKIE values, activation parameters, and computational results describe a mechanism where the metal ion, coordinated to the N,N-bis(2-picolyl)amide unit, delivers a Cu(II)-coordinated methoxide to the carbonyl group in the rate-limiting transition state of the reaction. The metal ion appears to activate the substrate through coordination to the amide nitrogen, activate and deliver the nucleophile, and subsequently assist LG departure. Expanding upon this work revealed a common mechanism for the methanolysis and ethanolysis of the Ni(II), Zn(II), and Cu(II) complexes of N,N-bis(2-picolyl)-p-nitrobenzamide and N,N-bis((1H-benzimidazol-2-yl)methyl)-p-nitrobenzamide. Comparing the rate constants for the attack of alkoxide on the M(II)-complexed 4 nitro-substituted benzamides to those for the uncomplexed forms reveals accelerations ranging from 10¹⁴ to 10¹⁹. Finally, the palladacycle-promoted methanolysis of a series of thiobenzanilides with different LGs was studied under sspH-controlled conditions at 25 °C. The kinetic data indicate that two mechanisms are operative wherein either one or two catalysts effect cleavage depending on the nature of the LG.

Subjects/Keywords: activation parameters ; ethanolysis ; solvent kinetic isotope effects ; phosphate ester ; catalysis ; amide ; leaving group assistance ; thioamide ; physical organic chemistry ; hydrolysis ; kinetics ; methanolysis

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APA (6^th Edition):

Raycroft, M. (2016). Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/14289

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Raycroft, Mark. “Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides .” 2016. Thesis, Queens University. Accessed April 14, 2021. http://hdl.handle.net/1974/14289.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Raycroft, Mark. “Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides .” 2016. Web. 14 Apr 2021.

Vancouver:

Raycroft M. Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides . [Internet] [Thesis]. Queens University; 2016. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1974/14289.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Raycroft M. Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of Phosphate Esters, Amides, and Thioamides . [Thesis]. Queens University; 2016. Available from: http://hdl.handle.net/1974/14289

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

16. Huang, Xiang-wen. Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms.

Degree: Master, Environmental Engineering, 2018, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717118-165839

► Mercury and its derivatives as well as NOx are the major air pollutants emitted from coal-fired power plants, which could cause seriously adverse impact on… (more)

▼ Mercury and its derivatives as well as NOx are the major air pollutants emitted from coal-fired power plants, which could cause seriously adverse impact on the ecological system and human health. The simultaneous removal of Hg0 and NOx by the installed air pollution control devices (APCDs) could not only reach high removal efficiency of air pollutants but also reduce the installation and operational cost. One of the most potential technologies for multi-pollutant removal is to remove Hg0 by SCR. However, the current SCR has an optimum reaction temperature range of 300-400Â°C, which must place it in the front of ESP. However the masking effect of high-concentration particles in the flue gas reduces the removal efficiency of Hg0 by SCR. Accordingly, this study aims to combine thermo-catalysis and photocatalysis to prepare a new photothermal catalyst suitable for 100-200Â°C, for developing an innovative Hg0 removal technology in a lower temperature environment. ããThis study was conducted in five phase: The first phase was literature, including reviewing the modification and preparation of TiO2, and the photothermal catalytic oxidation of Hg0. The second phase applied sol-gel method to prepare TiO2, CeO2/TiO2 and WO3/CeO2/TiO2 photothermal catalysts, and characterized surface properties by SEM, EDS, BET, XRD, XPS, PL and FTIR. The third phase established a photothermal catalytic reactor and an Hg0 online measurement system. A quality assurance and quality control (QA/QC) procedure was established to ensure the accuracy of Hg0 measurement. The fourth phase investigated the effects of operating parameters on Hg0 photothermal catalysis at lower temperature (100-200 Â°C). The operating parameters included reaction temperature, influent Hg0 concentration, and pollutant gas components. The fifth phas simulated the reaction rate constant of Hg0 L-H reaction kinetic model. ããExperimental results indicated that the TiO2 prepared by sol-gel method was mainly anatase (>80%). XPS showed that Ce mostly existed in the form of Ce4+, while EDS Ce content on the surface of TiO2 that the increased linearly with the increase of Ce addition during the preparation procedure. Photothermal catalytic oxidation results indicated that CeO2/TiO2 has higher oxidation efficiency of Hg0 at 100-200 Â°C, and increased from 30-60% to >90%. With the increase of CeO2 added, the photothermal catalytic oxidation of Hg0 increased. Simulated by L-H kinetic model, the reaction equilibrium constant (KHg0) was determined, and KHg0 decreased with reaction temperature, which concurred with the trend of the Hg0 oxidation efficiency of the experimental results. Finally, the photothermal catalytic oxidation of Hg0 was carried out in the atmosphere of 300 ppm NO and 300 ppm SO2, respectively. The results showed that the photothermal catalytic oxidation efficiency of Hg0 by 7% CeO2/TiO2 was higher than that by 3% WO3/7% CeO2/TiO2 in NO atmosphere, but its oxidation efficiency decreased with temperature. The photothermal catalytic oxidation of Hg0 decreased… Advisors/Committee Members: Chung-Hsuang Hung (chair), Cheng-Hsian Tsai (chair), Yuan-Chung Lin (chair), Chung-Shin Yuan (committee member).

Subjects/Keywords: CeO2/TiO2; L-H kinetic model; oxidation efficiency of elemental mercury (Hg0); photothermal catalytic oxidation; operating parameters

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APA (6^th Edition):

Huang, X. (2018). Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717118-165839

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Huang, Xiang-wen. “Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms.” 2018. Thesis, NSYSU. Accessed April 14, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717118-165839.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Huang, Xiang-wen. “Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms.” 2018. Web. 14 Apr 2021.

Vancouver:

Huang X. Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms. [Internet] [Thesis]. NSYSU; 2018. [cited 2021 Apr 14]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717118-165839.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Huang X. Enhancement of Oxidation Efficiency of Elemental Mercury by CeO2/TiO2 and CeO2/WO3/TiO2 at Low Temperatures Governed by Different Mechanisms. [Thesis]. NSYSU; 2018. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717118-165839

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

17. Cheng, Su-wen. Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology.

Degree: PhD, Environmental Engineering, 2018, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803118-081441

► Chinese cooking fume is one of the sources of volatile organic compounds (VOCs) in the air. An innovative control technology combining photocatalytic degradation and ozone… (more)

▼ Chinese cooking fume is one of the sources of volatile organic compounds (VOCs) in the air. An innovative control technology combining photocatalytic degradation and ozone oxidation (UV/TiO2+O3) was developed to decompose VOCs in the cooking fume. Fiberglass filter (FGF) coated with TiO2 was prepared by an impregnation procedure. A continuous-flow reaction system was self-designed by combining photocatalysis with advanced ozone oxidation technique. By passing the simulated cooking fume through the FGF, the VOC decomposition efficiency in the cooking fume could be increased by about 10%. The decomposition efficiency of VOCs in the cooking fume increased and then decreased with the inlet VOC concentration. A maximum VOC decomposition efficiency of 64% was obtained at 100 ppm. Similar trend was observed for reaction temperature with the VOC decomposition efficiencies ranging from 64 to 68%. Moreover, injection ozone concentration had a positive effect on the decomposition of VOCs in the cooking fume for injection ozone concentration â¤1000 ppm and leveled off for injection ozone concentration >1000 ppm. About 34% of VOC decomposition efficiency could be achieved solely by ozone oxidation with or without near-UV irradiation. A maximum of 75% and 94% VOC decomposition efficiency could be achieved by O3+UV/TiO2 and UV/TiO2+O3 techniques, respectively. The maximum decomposition efficiencies of VOCs decreased to 79% for using UV/TiO2+O3 technique with adding water in the oil fume. Comparing the chromatographical species of VOCs in the oil fume before and after the decomposition of VOCs by using UV/TiO2+O3 technique, we found that both TVOC and VOC species in the oil fume were effectively decomposed. Bench-scale experiments using iron modified and unmodified photocatalysts (Fe/TiO2 and TiO2) were conducted to compare their decomposition efficiencies of formaldehyde. The effects of operating parameters on the decomposition efficiency of formaldehyde were further investigated. The grain size of iron doped photocatalysts ranged from 25 to 60 nm. The iron doped content of 1, 3, and 5% Fe/TiO2 photocatalysts were measured as 1.2, 3.1, and 4.7%, respectively. The UV-visible analytical results showed that a significant red shift was observed while the iron doping content of Fe/TiO2 increased from 0 to 5%. Two continuous-flow reaction systems, the ozonolytic and the photocatalytic reactors, were combined in series to investigate their capability to decompose formaldehyde by Fe/TiO2 photocatalysts with operating parameters. Six operating parameters investigated in this study included the influent formaldehyde concentrations (0.15, 0.30, and 0.45 ppm), the relative humiditues (5, 35, and 55%), the irradiation of lights (visible, near-UV, and UV), the reaction temperatures (25, 30, and 35Â°C), the iron doping contents (1, 3, and 5% Fe/TiO2), and the injection ozone concentrations (2000 and 3000 ppb). The optimal operating parameters obtained in this study were the influent formaldehyde concentration of 0.15 ppm, the relative humidity of… Advisors/Committee Members: Shui-jen Chen (chair), Chung-shin Yuan (committee member), Wen-hsi Cheng (chair), Chung-hsuang Hung (chair), Jeng-jong Liang (chair).

Subjects/Keywords: Kinetic model; Decomposition efficiency; Operating parameters; Volatile organic compounds(VOCs); Cooking fume and indoor formaldehyde; Nano-sized photocatalyst; Ozone oxidation

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APA (6^th Edition):

Cheng, S. (2018). Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803118-081441

Chicago Manual of Style (16^th Edition):

Cheng, Su-wen. “Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology.” 2018. Doctoral Dissertation, NSYSU. Accessed April 14, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803118-081441.

MLA Handbook (7^th Edition):

Cheng, Su-wen. “Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology.” 2018. Web. 14 Apr 2021.

Vancouver:

Cheng S. Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology. [Internet] [Doctoral dissertation]. NSYSU; 2018. [cited 2021 Apr 14]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803118-081441.

Council of Science Editors:

Cheng S. Mechanisms for Decomposition of Indoor Formaldehyde and TVOCs in Cooking Fumes by Combining Modified Nano-TiO2 Photocatalysts with Ozone Oxidation Technology. [Doctoral Dissertation]. NSYSU; 2018. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803118-081441

18. Piazzon, Nelly. Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie.

Degree: Docteur es, Chimie des matériaux, 2010, Mulhouse

URL: http://www.theses.fr/2010MULH5932

►

Un nanocalorimètre permet l'analyse thermique de très faibles quantités d'échantillons (quelques nanogrammes ou picogrammes), ainsi que l'étude de films minces dont l'épaisseur varie de quelques… (more)

▼

Un nanocalorimètre permet l'analyse thermique de très faibles quantités d'échantillons (quelques nanogrammes ou picogrammes), ainsi que l'étude de films minces dont l'épaisseur varie de quelques nanomètres à plus d'un micron. Les vitesses de chauffe et de refroidissement sont nettement plus élevées que celles réalisées avec une DSC classique : les vitesses de chauffe peuvent atteindre 103 à 106 K/s, par conséquent, les mesures réalisées avec ce type d'appareil sont très rapides (quelques millisecondes). Du fait de sa sensibilité élevée, des vitesses de chauffe rapides atteintes et de l'acquisition rapide des données, le nanocalorimètre peut être utilisé pour la caractérisation et la détection de quelques nanogrammes de matériaux énergétiques. Les objectifs de cette thèse sont d'une part de mettre au point une procédure de calibration des capteurs nanocalorimétriques (calibration de la température, de la puissance, de la masse du microcristal à analyser) et d'autre part de caractériser des matériaux énergétiques afin de pouvoir effectuer des analyses quantitatives en vue d'applications pour la détection d'explosifs. Les matériaux énergétiques étudiés sont des films de nitrocellulose, des cristaux de penthrite, d'hexogène (principal constituant du C4), de 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12- hexaazaisowurtzitane (Cl20), et des nano-cristaux d'explosifs. Le travail réalisé a montré qu'il est possible de rapidement différencier des explosifs par leurs températures de fusion, de décomposition et d'évaporation. Il est aussi possible de déterminer des paramètres cinétiques d'un cristal isolé d'explosif.

Calorimetry is one of the main techniques of thermal analysis. Most of physical or chemical modifications of material are associated with thermal effects whereby heat is absorbed (i.e., melting) or released (i.e., thermal decomposition). Typically, calorimetric experiments are performed with Differential Scanning Calorimetry (DSC), which measures the heat flux absorbed or released by the sample following the same temperature program as a reference material. In these experiments, measurements are typically carried out on a few milligrams of sample. However, for many applications one has to handle nanograms or even picograms of sample. One of such applications is relevant to studies of materials which can release a significant amount of energy during their decomposition (energetic materials). Calorimetry able to handle nanograms of sample could find potential applications in the field of explosives detection. Nanocalorimetry allows to heat small amounts of sample (a few nanograms to a few hundred picograms) at extreme heating rates, i.e. up to one million °C/s. The temperature increase can initiate several phenomena in energetic materials, therefore the calorimetry could be an appropriate technique to characterize and to detect energetic materials. The energetic materials used in this study are nitrocellulose (NC), hexogen (RDX), 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-ltexaazaisowurtzitane (CL-20) and penthrite (PETN). The…

Advisors/Committee Members: Ivanov, Dimitri A. (thesis director).

Subjects/Keywords: Nanocalorimétrie; Matériaux énergétiques; Calorimétrie; Détection; Paramètres cinétiques; Microscopie à force atomique; Instrumentation; Nanocalorimetry; Energetic materials; Calorimetry; Detection; Kinetic parameters; AFM; Instrumentation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Piazzon, N. (2010). Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie. (Doctoral Dissertation). Mulhouse. Retrieved from http://www.theses.fr/2010MULH5932

Chicago Manual of Style (16^th Edition):

Piazzon, Nelly. “Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie.” 2010. Doctoral Dissertation, Mulhouse. Accessed April 14, 2021. http://www.theses.fr/2010MULH5932.

MLA Handbook (7^th Edition):

Piazzon, Nelly. “Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie.” 2010. Web. 14 Apr 2021.

Vancouver:

Piazzon N. Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie. [Internet] [Doctoral dissertation]. Mulhouse; 2010. [cited 2021 Apr 14]. Available from: http://www.theses.fr/2010MULH5932.

Council of Science Editors:

Piazzon N. Characterization and detection of traces of energetic materials by Nanocalorimetry : Caractérisation et détection de matériaux énergétiques à l'état de traces par nanocalorimétrie. [Doctoral Dissertation]. Mulhouse; 2010. Available from: http://www.theses.fr/2010MULH5932

Univerzitet u Beogradu

19. Micić, Darko M., 1983-. Hemijska i termalna analiza semena jagodastog voća.

Degree: Fakultet za fizičku hemiju, 2016, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:12211/bdef:Content/get

►

Fizička hemija - Hemijska kinetika i termodinamika / Physical Chemistry - Chemical Kinetics and Thermodynamics

Cilj ovog rada bio je da se ispitaju hemijske i… (more)

Subjects/Keywords: raspberry seed; blackberry seed; seed flour; seed oil; thermal analysis; DSC; MDSC; TG; oxidation of oil; oxidation kinetic parameters

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APA (6^th Edition):

Micić, Darko M., 1. (2016). Hemijska i termalna analiza semena jagodastog voća. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:12211/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Micić, Darko M., 1983-. “Hemijska i termalna analiza semena jagodastog voća.” 2016. Thesis, Univerzitet u Beogradu. Accessed April 14, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:12211/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Micić, Darko M., 1983-. “Hemijska i termalna analiza semena jagodastog voća.” 2016. Web. 14 Apr 2021.

Vancouver:

Micić, Darko M. 1. Hemijska i termalna analiza semena jagodastog voća. [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Apr 14]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:12211/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Micić, Darko M. 1. Hemijska i termalna analiza semena jagodastog voća. [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:12211/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Dalaei, Peyman. The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB).

Degree: 2019, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/6160

► There has been increased interest in alternative wastewater treatment systems to improve nutrient recovery while achieving acceptable TCOD, TN, and TP discharge limits. Purple phototrophic… (more)

▼ There has been increased interest in alternative wastewater treatment systems to improve nutrient recovery while achieving acceptable TCOD, TN, and TP discharge limits. Purple phototrophic bacteria (PPB) have a high potential for simultaneous nutrient removal and recovery from wastewater. This study evaluated the PPB performance and its growth at different operating conditions with a focus on HRT and light optimization using a continuous-flow membrane photobioreactor (PHB). Furthermore, the effect of low temperature on PPB performance was assessed to evaluate the PPB’s application in cold-climate regions. In order to evaluate PPB performance, TCOD, TN, and TP removal efficiencies and Monod kinetic parameters were analyzed at different HRTs (36, 18, and 9 h), at temperatures of 22°C and 11°C and infrared (IR) light intensities of 50, 3, and 1.4 Wm-2. The results indicated that low temperature had no detrimental impact on PPB’s performance. The photobioreactor (PHB) with cold-enriched PPB has a high potential to treat municipal wastewater with effluent concentrations below target limits (TCOD˂ 50mgL-1, TN˂10 mgL-1, and TP˂1 mgL-1). Monod kinetic parameters Ks, K, Y, and Kd were estimated at 20-29 mgCODL-1, 1.6-1.9 mgCOD(mgVSS.d)-1, 0.47 mgVSS mgCOD-1, and 0.07-0.08 d-1 at temperatures of 11°C-22°C respectively. The results of the steady-state mass balances showed TCOD, TN, and TP recoveries of 80%-86%, which reflected PPB’s substrate and nutrient assimilation. Previous studies utilized high light intensities (˃ 50 Wm-2) to provide PPB with the maximum energy required for its growth. In order to enable the PPB technology as a practical approach in municipal wastewater treatment, light intensity must be optimized. Based on the literature, there is no study on PPB performance at low light intensities using a continuous-flow membrane photobioreactor. The effect of low light intensities of 3, and 1.4 Wm-2 on PPB performance was addressed in this study. The results indicated that PPB at a light intensity as low as 1.4 Wm-2 were able to treat municipal wastewater with effluent concentrations below above-mentioned target limits. Light intensity (1-50 Wm-2) had no detrimental impact on PPB performance and Monod kinetic parameters. This study showed that the optimized light intensity required for municipal wastewater treatment with PPB is significantly lower than previously indicated in the literature. The energy consumptions attributed to PHB’s illumination of 3, and 1.4 Wm-2 were determined to be 1.44, and 0.67 kWh/m3 which is significantly lower than previous studies (˃ 24 kWh/m3).

Subjects/Keywords: Purple phototrophic bacteria; Municipal wastewater; Monod kinetic parameters; Nutrient removal and recovery; Photobioreactor; Optimization; Environmental Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dalaei, P. (2019). The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB). (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/6160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dalaei, Peyman. “The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB).” 2019. Thesis, University of Western Ontario. Accessed April 14, 2021. https://ir.lib.uwo.ca/etd/6160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dalaei, Peyman. “The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB).” 2019. Web. 14 Apr 2021.

Vancouver:

Dalaei P. The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB). [Internet] [Thesis]. University of Western Ontario; 2019. [cited 2021 Apr 14]. Available from: https://ir.lib.uwo.ca/etd/6160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dalaei P. The effect of low temperature and low light intensity on nutrient removal from municipal wastewater by purple phototrophic bacteria (PPB). [Thesis]. University of Western Ontario; 2019. Available from: https://ir.lib.uwo.ca/etd/6160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Truchet, Guillaume. Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations.

Degree: Docteur es, Mécanique des fluides, procédés, énergétique, 2015, Université Grenoble Alpes (ComUE)

URL: http://www.theses.fr/2015GREAI037

►

L'un des enjeux actuel de la neutronique concerne la propagation rigoureuse des incertitudes d'entrée (e.g. données nucléaires, tolérances de fabrications, etc.) aux résultats finaux calculés… (more)

▼

L'un des enjeux actuel de la neutronique concerne la propagation rigoureuse des incertitudes d'entrée (e.g. données nucléaires, tolérances de fabrications, etc.) aux résultats finaux calculés par les codes (e.g. keff, taux de réaction, etc.). Pour propager les incertitudes, il est de coutume de faire l'hypothèse de petites variations autour d'une référence et de calculer, dans un premier temps, des profils de sensibilités. Or, les codes Monte-Carlo, qui se sont imposés comme des références de calcul, ne possèdent pas – ou n'ont intégré que très récemment – un moyen direct de calculer des sensibilités et donc de réaliser un calcul précis d'incertitudes. Les approches déterministes, elles, permettent le calcul de ces sensibilités mais introduisent parfois de très fortes hypothèses, notamment sur la géométrie.Le premier objectif de se travail de thèse est d'introduire dans le code Monte Carlo du CEA de transport des neutrons, TRIPOLI-4, des méthodes à même de calculer des profils de sensibilités du keff aux données nucléaires ou à toute autre perturbation. Pour cela, il a d'abord été nécessaire de mettre en place le calcul du flux adjoint d'un milieu critique. Pour la première fois, et grâce aux développements informatiques de ce travail, il a été possible de calculer dans un cas réel, concret, et applicatif, des spectres de flux adjoints en un point quelconque d'un réacteur. Ceci a été réalisé à l'aide de la probabilité itérée de fission (Iterated Fission Probability ou IFP) qui assimile le flux adjoint à l'importance d'un neutron dans un réacteur exactement critique. Ce calcul de flux adjoint a, par la suite, ouvert la porte au premier développement d'une méthode de calcul de « perturbations exacte » en Monte Carlo, théorie qui permet de s'affranchir des hypothèses de petites variations, et qui ouvre la porte à certaines applications jusqu'alors difficiles à analyser.Au delà de l'analyse poussée de la méthode IFP et de son application au calcul de flux adjoint, cette thèse propose également, d'obtenir dans le code TRIPOLI-4, les paramètres cinétiques d'un réacteur pondérés par le flux adjoint ou bien des aires de migration. A cette fin, l'implémentation reprend et améliore un algorithme déjà développé par la communauté scientifique pour estimer des perturbations au premier ordre.

A key issue in nowadays Reactor Physics is to propagate input data uncertainties (e.g. nuclear data, manufacturing tolerances, etc.) to nuclear codes final results (e.g. keff, reaction rate, etc.). In order to propagate uncertainties, one typically assumes small variations around a reference and evaluates at first sensitivity profiles. Problem is that nuclear Monte Carlo codes are not – or were not until very recently – able to straightforwardly process such sensitivity profiles, even thought they are considered as reference codes.First goal of this PhD thesis is to implement a method to calculate keff-sensitivity profiles to nuclear data or any perturbations in TRIPOLI-4, the CEA Monte Carlo neutrons transport code. To achieve such a…

Advisors/Committee Members: Santamarina, Alain (thesis director), Leconte, Pierre (thesis director).

Subjects/Keywords: Monte Carlo; Tripoli 4; Flux adjoint; Perturbations; Sensibilités; Paramètres cinétiques; Monte Carlo; Tripoli 4; Adjoint flux; Perturbations; Sensitivity; Kinetic parameters; 620

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Truchet, G. (2015). Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2015GREAI037

Chicago Manual of Style (16^th Edition):

Truchet, Guillaume. “Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations.” 2015. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed April 14, 2021. http://www.theses.fr/2015GREAI037.

MLA Handbook (7^th Edition):

Truchet, Guillaume. “Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations.” 2015. Web. 14 Apr 2021.

Vancouver:

Truchet G. Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2015. [cited 2021 Apr 14]. Available from: http://www.theses.fr/2015GREAI037.

Council of Science Editors:

Truchet G. Développements et validation de calculs à énergie continue pondérés par l'importance : Development and validation of continuous energy adjoint-weighted calculations. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2015. Available from: http://www.theses.fr/2015GREAI037

University of Texas – Austin

22. -5734-0418. Fire safety in sustainable buildings : status, options, alternatives.

Degree: PhD, Mechanical Engineering, 2017, University of Texas – Austin

URL: http://hdl.handle.net/2152/47453

► Sustainable design is a holistic goal of efficiency and optimization to reduce building energy consumption and environmental impact while improving occupant health and safety. Sustainable… (more)

▼ Sustainable design is a holistic goal of efficiency and optimization to reduce building energy consumption and environmental impact while improving occupant health and safety. Sustainable building construction is one of the fastest growing industries in the United States. Changes in materials, products, designs, and methodologies are occurring to accommodate this green progression. While these changes have energy and environmental benefits, questions have been raised about the impacts on fire safety. As sustainability is rapidly adopted in the building construction industry, so too must our understanding of fire safety implications. It is possible that a single fire event can negate several, if not all, elements of green design. Intermingling green design and fire safety such that they reinforce rather than undermine each other would produce a net benefit to both humans and the environment. Without this consideration, green design could unintentionally increase fire risk and damage. To begin addressing some of these concerns, a three-pronged approach was taken in this research. First, a detailed qualitative examination of the relationship between fire safety and sustainability in buildings was conducted, including a discussion on the status of the fire and sustainability communities and recommendations on areas for development and implementation to promote fire safe sustainable designs. This first analysis concludes that exchange between the sustainability and fire safety communities is inadequate. The fire safety community is focused on quantifying and tracking such implications with a concern for firefighter security and training, while the sustainability community is focused on meeting the minimum building code requirements for fire protection. Second, a quantitative analysis on thermal insulation, an essential building material, was performed to demonstrate the current options available to designers and regulators and, more generally, how to integrate both fire safety and sustainability in material selection. A pointed result of this work is that rockwool, an insulation popular in Europe but rarely used in the United States, consistently ranked as a top performer. In the third component of this work, an investigation into the viability of two alternative, reportedly environmentally benign flame retardants (FRs) was conducted for use on flexible polyurethane foam (PU), a prevalent material in interior furnishings. Several previously unknown characteristics of these unique FRs were discovered through this work, including dissimilarities to a conventional halogenated FR treatment. In summary, this research elucidates the current status of the nexus of fire safety and sustainability, offers an immediate method of selecting preferable material options, and validates sustainable FR alternatives. Advisors/Committee Members: Ezekoye, Ofodike A. (advisor), Webber, Michael E., 1971- (advisor), Ellison, Christopher J. (committee member), Ellzey, Janet L. (committee member).

Subjects/Keywords: Fire safety; Sustainability; Insulation; Green building; Optimization; Flame retardant; Polydopamine; Flexible polyurethane foam; Thermal degradation; Kinetic parameters

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

-5734-0418. (2017). Fire safety in sustainable buildings : status, options, alternatives. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/47453

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-5734-0418. “Fire safety in sustainable buildings : status, options, alternatives.” 2017. Doctoral Dissertation, University of Texas – Austin. Accessed April 14, 2021. http://hdl.handle.net/2152/47453.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-5734-0418. “Fire safety in sustainable buildings : status, options, alternatives.” 2017. Web. 14 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-5734-0418. Fire safety in sustainable buildings : status, options, alternatives. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2017. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/2152/47453.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-5734-0418. Fire safety in sustainable buildings : status, options, alternatives. [Doctoral Dissertation]. University of Texas – Austin; 2017. Available from: http://hdl.handle.net/2152/47453

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Ohio University

23. Diaz Aldana, Luis A. Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes.

Degree: PhD, Chemical Engineering (Engineering and Technology), 2014, Ohio University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395077873

► The ammonia electrolysis process has been proposed as a feasible way for electrochemical generation of fuel grade hydrogen (H₂). Ammonia is identified as one of… (more)

▼ The ammonia electrolysis process has been proposed as a feasible way for electrochemical generation of fuel grade hydrogen (H₂). Ammonia is identified as one of the most suitable energy carriers due to its high hydrogen density, and its safe and efficient distribution chain. Moreover, the fact that this process can be applied even at low ammonia concentration feedstock opens its application to wastewater treatment along with H₂ co-generation.In the ammonia electrolysis process, ammonia is electro-oxidized in the anode side to produce N₂ while H₂ is evolved from water reduction in the cathode. A thermodynamic energy requirement of just five percent of the energy used in hydrogen production from water electrolysis is expected from ammonia electrolysis. However, the absence of a complete understanding of the reaction mechanism and kinetics involved in the ammonia electro-oxidation has not yet allowed the full commercialization of this process. For that reason, a kinetic model that can be trusted in the design and scale up of the ammonia electrolyzer needs to be developed. This research focused on the elucidation of the reaction mechanism and kinetic parameters for the ammonia electro-oxidation. The definition of the most relevant elementary reactions steps was obtained through the parallel analysis of experimental data and the development of a mathematical model of the ammonia electro-oxidation in a well defined hydrodynamic system, such as the rotating disk electrode (RDE). Ammonia electro-oxidation to N₂ as final product was concluded to be a slow surface confined process where parallel reactions leading to the deactivation of the catalyst are present. Through the development of this work it was possible to define a reaction mechanism and values for the kinetic parameters for ammonia electro-oxidation that allow an accurate representation of the experimental observations on a RDE system. Additionally, the validity of the reaction mechanism and kinetic parameters were supplemented by means of process scale up, performance evaluation, and hydrodynamic analysis in a flow cell electrolyzer. An adequate simulation of the flow electrolyzer performance was accomplished using the obtained kinetic parameters. Advisors/Committee Members: Botte, Gerardine (Advisor).

Subjects/Keywords: Chemical Engineering; Chemistry; Energy; Engineering; Ammonia Electro-Oxidation; Mathematical Modeling; Electrolyzer; Polycrystalline Platinum; Reaction Mechanism; Kinetic Parameters; Hydrodynamic Analysis

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Diaz Aldana, L. A. (2014). Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes. (Doctoral Dissertation). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395077873

Chicago Manual of Style (16^th Edition):

Diaz Aldana, Luis A. “Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes.” 2014. Doctoral Dissertation, Ohio University. Accessed April 14, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395077873.

MLA Handbook (7^th Edition):

Diaz Aldana, Luis A. “Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes.” 2014. Web. 14 Apr 2021.

Vancouver:

Diaz Aldana LA. Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes. [Internet] [Doctoral dissertation]. Ohio University; 2014. [cited 2021 Apr 14]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395077873.

Council of Science Editors:

Diaz Aldana LA. Mathematical Modeling of Ammonia Electro-Oxidation on Polycrystalline Pt DepositedElectrodes. [Doctoral Dissertation]. Ohio University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395077873

24. Seung Min Lee. Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01.

Degree: 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/85/85133/tde-06102014-100048/

►

Este trabalho apresenta uma nova abordagem experimental para determinar a reatividade de sistemas subcríticos. O método a ser apresentado utiliza o modelo da cinética subcrítica… (more)

▼

Este trabalho apresenta uma nova abordagem experimental para determinar a reatividade de sistemas subcríticos. O método a ser apresentado utiliza o modelo da cinética subcrítica desenvolvido por Gandini e Salvatores e baseia-se apenas em grandezas medidas, tais como a taxa de contagem no detector, e nos parâmetros que surgem do ajuste dos mínimos quadrados APSD (Auto Power Spectral Density) e CPSD (Cross Power Spectral Density), não sendo necessário lidar com as quantidades de maior complexidade como a eficiência de detector. A única hipótese feita neste método foi que a fração efetiva de nêutrons atrasados e o tempo de geração de nêutrons prontos fossem independentes do nível de subcriticalidade do sistema. O método proposto foi aplicado nas medidas de reatividade de várias configurações subcríticas do reator IPEN/MB-01. Foram realizadas medidas da APSD e CPSD em diversos graus de subcriticalidade (até em torno de -7000 pcm). Nos dados das densidades espectrais foram feitos ajustes por meio do método de mínimos quadrados para obter a constante de decaimento pronto (α) e outras grandezas. Com a finalide de melhorar as estatísticas de contagem de nêutrons, fonte externa de nêutrons de Am-Be foi instalada próximo ao núcleo, além da fonte de partida. O método experimental proposto mostra claramente que, a teoria da cinética pontual clássica não descreve a reatividade medida. Em vez disso, a reatividade inferida a partir do modelo da cinética pontual clássica é próxima, em seus valores absolutos, ao índice de subcriticalidade (ζ) para um determinado arranjo das fontes do experimeno. A concordância dos resultados obtidos por MCNP5 e GPT-TORT, ambos utilizando os dados nucleares da biblioteca ENDF/B-VII.0, com os resultados experimentais correspondentes são de boa qualidade.

This work presents a new experimental approach to determine the reactivity levels of subcritical systems. The method employs the subcritical kinetic model developed by Gandini and Salvatores and it is based only on measured quantities such as counting rates of the detectors employed in the experiments and the parameters arising from the least squares fitting of the APSD (Auto Power Spectral Density) and CPSD (Cross Power Spectral Density). Detector efficiencies, quantity required in other procedures such as Neutron Source Multiplication (NSM) method, are not needed in the proposed method. The only hypothesis made in the method was the independence of the effective delayed neutron fraction and the prompt neutron generation time to the subcriticality level of the system. The proposed method was applied to measure the reactivity of several subcritical configurations of the IPEN/MB-01 reactor. Measurements of APSD and CPSD were performed in several degrees of subcriticality (up to around -7000 pcm). The spectral densities data were least squares fitted to get the prompt decay mode (α) and other quantities. Beside the startup source of the facility, an external neutron source of Am-Be was installed near the core in order to…

Advisors/Committee Members: Adimir dos Santos, Thiago Carluccio, Ricardo Diniz, Pedro Carlos Russo Rossi, Fernando Carvalho da Silva.

Subjects/Keywords: cinética de reatores; densidade espectral; parâmetros cinéticos; reatividade; sistemas subcríticos; APSD; kinetic parameters; reactivity; reactor kinetics; subcritical systems

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lee, S. M. (2014). Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/85/85133/tde-06102014-100048/

Chicago Manual of Style (16^th Edition):

Lee, Seung Min. “Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01.” 2014. Doctoral Dissertation, University of São Paulo. Accessed April 14, 2021. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-06102014-100048/.

MLA Handbook (7^th Edition):

Lee, Seung Min. “Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01.” 2014. Web. 14 Apr 2021.

Vancouver:

Lee SM. Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01. [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2021 Apr 14]. Available from: http://www.teses.usp.br/teses/disponiveis/85/85133/tde-06102014-100048/.

Council of Science Editors:

Lee SM. Obtenção de reatividade subcrítica por meio de medidas de APSD e CPSD utilizando detectores modo pulso no reator IPEN/MB-01. [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/85/85133/tde-06102014-100048/

25. Guilherme de Sousa Silva. Imobilização de lipase em matriz polimérica para produção de bioaroma.

Degree: 2012, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/74/74132/tde-19032013-135820/

►

Os ésteres são importantes compostos orgânicos, obtidos por síntese química ou extraídos de alguns produtos naturais utilizando-se solvente em meio adequado. Estudos mostram que enzimas,… (more)

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Os ésteres são importantes compostos orgânicos, obtidos por síntese química ou extraídos de alguns produtos naturais utilizando-se solvente em meio adequado. Estudos mostram que enzimas, em particular lipases, podem ser aplicadas na síntese de diversos ésteres. O principal objetivo deste trabalho foi a obtenção de acetato de butila, um éster de aroma característico de abacaxi, utilizando lipase de Geotrichum candidum produzida em fermentação submersa e imobilizada em matriz polimérica de alginato de bário e gelatina reticulada com glutaraldeído. A caracterização bioquímica foi realizada tanto para a lipase na forma livre como para a lipase na forma imobilizada. O rendimento em conversão molar de substrato foi determinado por cromatografia gasosa. A enzima apresentou atividade enzimática máxima após 48 horas de fermentação de 37,7 U/mL. Os valores ótimos para pH e temperatura da enzima na forma livre e imobilizada foram pH 6,5 e 40 °C e pH 7,5 e 45 °C, respectivamente. A enzima na forma livre foi estável do pH 6,0 ao 8,0 e à temperatura de 35 a 45 °C, já na forma imobilizada, foi estável do pH 5,5 ao 8,5 e na faixa de temperatura de 30 a 55 °C. A lipase imobilizada teve seus parâmetros cinéticos determinados, e os valores obtidos para o Km e Vmax, foram 0,115 mmol e 0,718 µmol.mL-1.min-1, respectivamente. As melhores condições de síntese do bioaroma para a enzima na forma livre foram: temperatura de 30 °C, 12,5% de enzima em relação à quantidade de butanol utilizada, proporção molar do substrato 60% de acetato de vinila em um período de 24 horas. O rendimento alcançado neste caso foi de 97,2 % de conversão molar em acetato de butila. Para a enzima imobilizada as melhores condições foram: temperatura de 45 °C, 12,5% de enzima em relação à quantidade de butanol utilizada, proporção molar do substrato 60% de acetato de vinila em um período de 24 horas. O rendimento alcançado neste caso foi de 99,1%, que demonstra que lipase produzida por Geotrichum candidum na forma imobilizada apresenta excelente capacidade de sintetizar acetato de butila (bioaroma de abacaxi).

Esters are important organic compounds obtained by chemical synthesis or derived from some natural products using a solvent in appropriate medium. Studies have shown that enzymes, particularly lipases, ca be applied in the synthesis of various esters. The main objective of this study was to obtain butyl acetate, a characteristic ester aroma of pineapple, using lipase from Geotrichum candidum produced in submerged fermentation and immobilized in a barium alginate and gelatin polymer matrix crosslinked with glutaraldehyde. The biochemical characterization was performed for both free and immobilized lipases. The yield in molar conversion of substrate was determined by gas chromatography. The enzyme showed maximum enzymatic activity after 48 hours of fermentation of 37.7 U/mL. The optimum values for pH and temperature of the enzyme in free and immobilize form were pH 6.5 and 40 °C and pH 7.5 and 45 °C, respectively.…

Advisors/Committee Members: Rosemary Aparecida de Carvalho, Eliana Setsuko Kamimura, Classius Ferreira da Silva.

Subjects/Keywords: Geotrichum candidum; Acetato de butila; Biocatálise; Enzima; Parâmetros cinéticos; Geotrichum candidum; Biocatalysis; Butyl acetate; Enzyme; Kinetic parameters

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, G. d. S. (2012). Imobilização de lipase em matriz polimérica para produção de bioaroma. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/74/74132/tde-19032013-135820/

Chicago Manual of Style (16^th Edition):

Silva, Guilherme de Sousa. “Imobilização de lipase em matriz polimérica para produção de bioaroma.” 2012. Masters Thesis, University of São Paulo. Accessed April 14, 2021. http://www.teses.usp.br/teses/disponiveis/74/74132/tde-19032013-135820/.

MLA Handbook (7^th Edition):

Silva, Guilherme de Sousa. “Imobilização de lipase em matriz polimérica para produção de bioaroma.” 2012. Web. 14 Apr 2021.

Vancouver:

Silva GdS. Imobilização de lipase em matriz polimérica para produção de bioaroma. [Internet] [Masters thesis]. University of São Paulo; 2012. [cited 2021 Apr 14]. Available from: http://www.teses.usp.br/teses/disponiveis/74/74132/tde-19032013-135820/.

Council of Science Editors:

Silva GdS. Imobilização de lipase em matriz polimérica para produção de bioaroma. [Masters Thesis]. University of São Paulo; 2012. Available from: http://www.teses.usp.br/teses/disponiveis/74/74132/tde-19032013-135820/

Université de Sherbrooke

26. Nikiema, Sompassaté Josiane. Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires.

Degree: 2008, Université de Sherbrooke

URL: http://savoirs.usherbrooke.ca/handle/11143/1911

► The main goal of this work has been that of optimizing the operating conditions of a biofilter, intended for the control of methane, an important… (more)

▼ The main goal of this work has been that of optimizing the operating conditions of a biofilter, intended for the control of methane, an important greenhouse gas widely emitted by older or smaller landfill installations.The specific objectives were: (1) to select a suitable packing material (of organic or inorganic type); (2) to optimize the concentrations of input nutrients, mainly consisting of nitrogen, phosphorus, potassium and copper, which are intended to be introduced via the nutrient solution; (3) to determine the optimized values of the most important design parameters, such as the methane inlet load (which depends on the air flow rate and the inlet methane concentration); and (4) to model the biofilter performance. Firstly, the comparison of the two packing materials, one of organic type, and the other of inorganic type, has revealed that the latter was the more appropriate material for the methane biofiltration. Then, through the use of the selected packing material, the influence of each individual nutrient on the efficiency of the process has been investigated.The results obtained have shown that both nitrogen and phosphorus concentrations have to be controlled, while potassium and copper were revealed as being nutrients of only minor importance. Secondly, the optimization of the inlet gas flow rate and of the inlet methane concentration (and consequently, of the methane inlet load also), has been performed. According to the results of the studies, these parameters require good control during methane biofiltration because a limitation in biofilter performance could otherwise be induced. In addition, it was noted that the increase in the inlet gas flow rate led generally to a greater decrease of the methane conversion than the one induced by the inlet methane concentration. Finally, a new method, based on the use of solid extracts sampled from the methane biofilter, has been applied to the determination of methane biofilter kinetic parameters. Following this study, a steady state model of the methane biofiltration, taking into consideration the important operational parameters, as identified previously, has been developed. One particular feature of this model is that it takes into consideration the influence of the biofilter average temperature.The prediction results, obtained with the use of the model, have been successfully compared with the experimental results. Advisors/Committee Members: Heitz, Michèle (advisor).

Subjects/Keywords: Model; Kinetic parameters; Operating parameters; Nutrients; Packing material; Landfill; Methane; Biofiltration

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nikiema, S. J. (2008). Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires. (Doctoral Dissertation). Université de Sherbrooke. Retrieved from http://savoirs.usherbrooke.ca/handle/11143/1911

Chicago Manual of Style (16^th Edition):

Nikiema, Sompassaté Josiane. “Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires.” 2008. Doctoral Dissertation, Université de Sherbrooke. Accessed April 14, 2021. http://savoirs.usherbrooke.ca/handle/11143/1911.

MLA Handbook (7^th Edition):

Nikiema, Sompassaté Josiane. “Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires.” 2008. Web. 14 Apr 2021.

Vancouver:

Nikiema SJ. Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires. [Internet] [Doctoral dissertation]. Université de Sherbrooke; 2008. [cited 2021 Apr 14]. Available from: http://savoirs.usherbrooke.ca/handle/11143/1911.

Council of Science Editors:

Nikiema SJ. Attenuation of greenhouse gas emissions by means of methane biofiltration optimization of the operating parameters: Atténuation des émissions de gaz à effet de serre par biofiltration du méthane : optimisation des paramètres opératoires. [Doctoral Dissertation]. Université de Sherbrooke; 2008. Available from: http://savoirs.usherbrooke.ca/handle/11143/1911

27. Alexsandra Cristina Chaves. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini.

Degree: 2008, Universidade Federal do Rio Grande do Norte

URL: http://bdtd.bczm.ufrn.br/tedesimplificado//tde_busca/arquivo.php?codArquivo=2415

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The cerium oxide has a high potential for use in removing pollutants after combustion, removal of organic matter in waste water and the fuel-cell technology.… (more)

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The cerium oxide has a high potential for use in removing pollutants after combustion, removal of organic matter in waste water and the fuel-cell technology. The nickel oxide is an attractive material due to its excellent chemical stability and their optical properties, electrical and magnetic. In this work, CeO2-NiO- systems on molars reasons 1:1(I), 1:2(II) e 1:3(III) metal-citric acid were synthesized using the Pechini method. We used techniques of TG / DTG and ATD to monitor the degradation process of organic matter to the formation of the oxide. By thermogravimetric analysis and applying the dynamic method proposed by Coats-Redfern, it was possible to study the reactions of thermal decomposition in order to propose the possible mechanism by which the reaction takes place, as well as the determination of kinetic parameters as activation energy, Ea, pre-exponential factor and parameters of activation. It was observed that both variables exert a significant influence on the formation of complex polymeric precursor. The model that best fitted the experimental data in the dynamic mode was R3, which consists of nuclear growth, which formed the nuclei grow to a continuous reaction interface, it proposes a spherical symmetry (order 2 / 3). The values of enthalpy of activation of the system showed that the reaction in the state of transition is exothermic. The variables of composition, together with the variable temperature of calcination were studied by different techniques such as XRD, IV and SEM. Also a study was conducted microstructure by the Rietveld method, the calculation routine was developed to run the package program FullProf Suite, and analyzed by pseudo-Voigt function. It was found that the molar ratio of variable metal-citric acid in the system CeO2-NiO (I), (II), (III) has strong influence on the microstructural properties, size of crystallites and microstrain network, and can be used to control these properties

O óxido de cério tem um alto potencial em uso para remoção de pós poluentes de combustão, remoção de matérias orgânicas de águas residuais e na tecnologia de células a combustível. O óxido de níquel é um material atraente devido a sua excelente estabilidade química, bem como suas propriedades ópticas, elétricas e magnéticas. Neste trabalho, sistemas de CeO2-NiO nas razões molares 1:1(I), 1:2(II) e 1:3(III) metal-ácido cítrico foram sintetizados utilizando o método Pechini. Foram utilizadas técnicas de TG / DTG e DTA para monitorar o processo de degradação da matéria orgânica até a formação do óxido. Através da análise termogravimétrica e aplicando-se o método dinâmico proposto por Coats-Redfern, foi possível realizar estudos das reações de decomposição térmica com o intuito de propor o possível mecanismo pelo qual a reação se processa, como também, a determinação de parâmetros cinéticos como energia de ativação, Ea, fator pré-exponencial e parâmetros termodinâmicos de ativação. Foi observado que ambas as variáveis exercem grande influência na formação do complexo polimérico precursor. O modelo…

Advisors/Committee Members: Patrícia Mendonça Pimentel, Érika Pinto Marinho, Dulce Maria de Araújo Melo, João Bosco Lucena de Oliveira, Joana Maria de Farias Barros.

Subjects/Keywords: Óxido de cério e óxido de níquel; ENGENHARIA DE MATERIAIS E METALURGICA; Parâmetros cinéticos; Microdeformação; Óxide cerium and oxide nickel; Parameters kinetic; Microstrain

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chaves, A. C. (2008). Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini. (Thesis). Universidade Federal do Rio Grande do Norte. Retrieved from http://bdtd.bczm.ufrn.br/tedesimplificado//tde_busca/arquivo.php?codArquivo=2415

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chaves, Alexsandra Cristina. “Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini.” 2008. Thesis, Universidade Federal do Rio Grande do Norte. Accessed April 14, 2021. http://bdtd.bczm.ufrn.br/tedesimplificado//tde_busca/arquivo.php?codArquivo=2415.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chaves, Alexsandra Cristina. “Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini.” 2008. Web. 14 Apr 2021.

Vancouver:

Chaves AC. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini. [Internet] [Thesis]. Universidade Federal do Rio Grande do Norte; 2008. [cited 2021 Apr 14]. Available from: http://bdtd.bczm.ufrn.br/tedesimplificado//tde_busca/arquivo.php?codArquivo=2415.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chaves AC. Síntese, estudo cinético e análise microestrutural do sistema cério-níquel obtido pelo método pechini. [Thesis]. Universidade Federal do Rio Grande do Norte; 2008. Available from: http://bdtd.bczm.ufrn.br/tedesimplificado//tde_busca/arquivo.php?codArquivo=2415

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Paraskevas, Paschalis. Sustainable conversion of biomass oxygenates: ab initio based model simulation.

Degree: 2015, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

URL: http://hdl.handle.net/10442/hedi/43243

► Biomass, as an abundant source for renewable energy, can provide a considerable contribution tofacing the global climate change and its impacts on humanity. The conversion… (more)

▼ Biomass, as an abundant source for renewable energy, can provide a considerable contribution tofacing the global climate change and its impacts on humanity. The conversion of biomass intofuels, energy, specialty chemicals and industrial products is expected to increase in importancethe coming years due to the concern for sustainable development and environmentally friendlierproducts. Many of the most important biomass conversion processes, such as combustion,gasification and pyrolysis are based on free-radical chemistry. The optimization of suchprocesses requires the development of fundamental kinetic models that contain thousands ofreactions. Thermodynamic and kinetic parameters for all compounds involved are necessary andthe determination of all these parameters is a major challenge in kinetic modeling.It is impossible to acquire all these parameters needed from experimental data only, due to thereactive nature of radical intermediates. Computational chemistry offers a reliable andcomplementary tool to experiment, allowing to obtain accurate thermodynamic and kineticparameters for a variety of compounds. Its main drawback is the increasing computational costfor larger compounds. Alternatively, accurate data for larger compounds can be obtained byusing group contribution methods based on structure-property relations that link the corresponding parameter to structural functional subunits. These parameters can be derived usingcomputational chemistry methods for smaller compounds.Objective: The objective of this research is to develop consistent and accurate models for theprediction of the thermochemistry of oxygenate compounds and of the Arrhenius parameters andthe rate coefficients for some of the most important reaction families involved in the thermaldecomposition of oxygenates. The acquired thermodynamic and kinetic data and the groupadditive models developed will be applied in simulating the pyrolysis of methyl butanoate, acommonly used biodiesel model compound.Thermochemistry: Accurate thermodynamic parameters are necessary when developingreaction networks since they can be used for the determination of reaction enthalpies andreaction equilibria. In this work the accurate CBS-QB3 ab initio method was employed, withcorrections for one-dimensional hindered rotation (1D-HR), to determine thermodynamicparameters (standard enthalpy of formation, ΔfHo, standard entropy, So, and heat capacities, Cp)for 450 oxygenate molecules and radicals. From this dataset 157 group additive values (GAVs)for oxygenate molecules and radicals have been determined within Benson’s group additivitymethod. To improve the accuracy, 26 corrections for non-nearest-neighbor interactions areintroduced for oxygenate molecules and radicals. The vast majority of these values have neverbeen determined before. As an alternative to the group additive method for radicals, the hydrogen bond increment method (HBI) is used to introduce 77 new HBI structures and tocalculate their thermodynamic parameters. The developed group additive model was validatedby…

Subjects/Keywords: Θερμοδυναμικές ιδιότητες; Κινητικές παράμετροι; Ab initio υπολογισμοί; Προσθετικές ιδιότητες κατά ομάδες; Μοντελοποίηση δικτύων αντιδράσεων; Thermodynamic properties; Kinetic parameters; Ab initio calculations; Group additivity; Reaction modelling

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Paraskevas, P. (2015). Sustainable conversion of biomass oxygenates: ab initio based model simulation. (Thesis). National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Retrieved from http://hdl.handle.net/10442/hedi/43243

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Paraskevas, Paschalis. “Sustainable conversion of biomass oxygenates: ab initio based model simulation.” 2015. Thesis, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Accessed April 14, 2021. http://hdl.handle.net/10442/hedi/43243.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Paraskevas, Paschalis. “Sustainable conversion of biomass oxygenates: ab initio based model simulation.” 2015. Web. 14 Apr 2021.

Vancouver:

Paraskevas P. Sustainable conversion of biomass oxygenates: ab initio based model simulation. [Internet] [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2015. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10442/hedi/43243.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Paraskevas P. Sustainable conversion of biomass oxygenates: ab initio based model simulation. [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2015. Available from: http://hdl.handle.net/10442/hedi/43243

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

29. Mara Rúbia da Silva Miranda. Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica.

Degree: 2011, Federal University of Uberlândia

URL: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=3396

►

A pirólise constitui-se atualmente uma das mais importantes tecnologias para transformar biomassa em produtos mais úteis à sociedade. Com o objetivo de aprofundar o conhecimento… (more)

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A pirólise constitui-se atualmente uma das mais importantes tecnologias para transformar biomassa em produtos mais úteis à sociedade. Com o objetivo de aprofundar o conhecimento da cinética da pirólise, o presente trabalho realizou um estudo exploratório da decomposição do bagaço do sorgo através da análise termogravimétrica (TG). A caracterização físico-química do bagaço do sorgo foi importante para relacionar a composição com os principais produtos da pirólise. A cinética de decomposição foi determinada por meio de ensaios dinâmicos, nos quais foram utilizadas as taxas de aquecimento de 10, 20, 40 e 50C/min. Três modelos isoconversionais segundo Osawa, K-A-S e Starink foram utilizados para cálculo da energia de ativação global, adotando duas faixas de tamanho de partículas. As regressões obtidas por estes métodos permitiram comprovar a mudança de mecanismo de reação nas altas temperaturas, comprovando a liberação de produtos mais pesados. Os resultados mostraram que a energia de ativação aumenta com o tamanho da partícula, levando a concluir que mesmo sendo uma pequena diferença, há uma influência do tamanho da partícula na transferência de calor. Os resultados de variação de massa demonstraram a existência de duas etapas de perda de massa, sendo estas atribuídas à decomposição majoritária da hemicelulose, celulose e lignina. O modelo de reações paralelas independentes (RPI) também foi utilizado para a estimativa dos parâmetros cinéticos em cada reação ocorrida. Com a utilização deste modelo foi possível observar que quanto maior a taxa de aquecimento, menor é a energia de ativação. Os resultados da energia de ativação das duas faixas de tamanho de partículas não demonstraram diferenças significativas, sendo que a energia de ativação obtida pelo método de RPI variou de 35,7 kJ/mol a 227,0 kJ/mol e para os modelos isoconversionais a energia de ativação variou de 127,9 kJ/mol a 159,7 kJ/mol. Outra análise realizada neste trabalho foi a pirólise analítica, na qual observou-se a presença de dois compostos predominantes nas condições de pirólise lenta e pirólise rápida (Benzofurano, 2,3- Dihidro e 2-Metoxi-4-Vinilfenol). O estudo exploratório desta Dissertação permitiu avaliar as potencialidades do bagaço do sorgo como biomassa nos processos de termoconversão. O sorgo, especialmente o sacarino, que atualmente está sendo estudado para complementar a cana-de-açúcar no seu período de entressafra, poderá não somente ser utilizado para a produção de álcool, mas também, como fonte de biomassa para outros processos de conversão térmica.

Pyrolysis is currently the one of the most important technologies for transforming biomass into more useful products to society. Aiming to deepen the knowledge of the kinetics of pyrolysis, this study conducted an exploratory study of the decomposition of sorghum bagasse by thermogravimetry analysis (TG). The physicochemical characterization of sorghum bagasse was important to relate the composition of the major products of pyrolysis. The kinetics of decomposition was determined by dynamic…

Advisors/Committee Members: Taisa Shimosakai de Lira, Carlos Henrique Ataide, Luiz Gustavo Martins Vieira, Claudio Roberto Duarte.

Subjects/Keywords: Bagaço do sorgo; Análise termogravimétrica; Pirólise analítica; Biomass; Analytical pyrolysis; Biomassa; Parâmetros cinéticos; ENGENHARIA QUIMICA; Pirólise; Pyrolysis; Sorghum bagasse; Thermal analysis; Kinetic parameters

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Miranda, M. R. d. S. (2011). Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica. (Thesis). Federal University of Uberlândia. Retrieved from http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=3396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Miranda, Mara Rúbia da Silva. “Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica.” 2011. Thesis, Federal University of Uberlândia. Accessed April 14, 2021. http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=3396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Miranda, Mara Rúbia da Silva. “Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica.” 2011. Web. 14 Apr 2021.

Vancouver:

Miranda MRdS. Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica. [Internet] [Thesis]. Federal University of Uberlândia; 2011. [cited 2021 Apr 14]. Available from: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=3396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Miranda MRdS. Bagaço do sorgo: estimativa de parâmetros cinéticos e pirólise analítica. [Thesis]. Federal University of Uberlândia; 2011. Available from: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=3396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

30. Camacho, Julianna G. Kinetics of Anionic Surfactant Anoxic Degradation.

Degree: PhD, Civil Engineering, 2010, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7665

► The biodegradation kinetics of Geropon TC-42 (trademark) by an acclimated culture was investigated in anoxic batch reactors to determine biokinetic coefficients to be implemented in… (more)

▼ The biodegradation kinetics of Geropon TC-42 (trademark) by an acclimated culture was investigated in anoxic batch reactors to determine biokinetic coefficients to be implemented in two biofilm mathematical models. Geropon TC-42 (trademark) is the surfactant commonly used in space habitation. The two biofilm models differ in that one assumes a constant biofilm density and the other allows biofilm density changes based on space occupancy theory. Extant kinetic analysis of a mixed microbial culture using Geropon TC-42 (trademark) as sole carbon source was used to determine cell yield, specific growth rate, and the half-saturation constant for S0/X0 ratios of 4, 12.5, and 34.5. To estimate cell yield, linear regression analysis was performed on data obtained from three sets of simultaneous batch experiments for three S0/X0 ratios. The regressions showed non-zero intercepts, suggesting that cell multiplication is not possible at low substrate concentrations. Non-linear least-squares analysis of the integrated equation was used to estimate the specific growth rate and the half-saturation constant. Net specific growth rate dependence on substrate concentration indicates a self-inhibitory effect of Geropon TC-42 (trademark). The flow rate and the ratio of the concentrations of surfactant to nitrate were the factors that most affected the simulations. Higher flow rates resulted in a shorter hydraulic retention time, shorter startup periods, and faster approach to a steady-state biofilm. At steady-state, higher flow resulted in lower surfactant removal. Higher influent surfactant/nitrate concentration ratios caused a longer startup period, supported more surfactant utilization, and biofilm growth. Both models correlate to the empirical data. A model assuming constant biofilm density is computationally simpler and easier to implement. Therefore, a suitable anoxic packed bed reactor for the removal of the surfactant Geropon TC-42 (trademark) can be designed by using the estimated kinetic values and a model assuming constant biofilm density. Advisors/Committee Members: Autenrieth, Robin (advisor), Batchelor, Bill (committee member), Chu, Kung-Hui (committee member), Wood, Thomas (committee member).

Subjects/Keywords: Monod kinetics; Kinetic parameters; Parameter estimation; Surfactant; Geropon TC-42®; Biofilm model

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APA (6^th Edition):

Camacho, J. G. (2010). Kinetics of Anionic Surfactant Anoxic Degradation. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7665

Chicago Manual of Style (16^th Edition):

Camacho, Julianna G. “Kinetics of Anionic Surfactant Anoxic Degradation.” 2010. Doctoral Dissertation, Texas A&M University. Accessed April 14, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7665.

MLA Handbook (7^th Edition):

Camacho, Julianna G. “Kinetics of Anionic Surfactant Anoxic Degradation.” 2010. Web. 14 Apr 2021.

Vancouver:

Camacho JG. Kinetics of Anionic Surfactant Anoxic Degradation. [Internet] [Doctoral dissertation]. Texas A&M University; 2010. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7665.

Council of Science Editors:

Camacho JG. Kinetics of Anionic Surfactant Anoxic Degradation. [Doctoral Dissertation]. Texas A&M University; 2010. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7665

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