subject:(XRD)

University of Georgia

1. Majs, Frantisek. Soluble phosphate amendments for metal and radionuclide immobilization.

Degree: PhD, Agronomy, 2009, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/majs_frantisek_200912_phd

► Intensive mining and processing of metals and radionuclides have resulted in significant soil and sediment contamination. Phosphate-based in-situ immobilization of the metals and radionuclides has… (more)

▼ Intensive mining and processing of metals and radionuclides have resulted in significant soil and sediment contamination. Phosphate-based in-situ immobilization of the metals and radionuclides has been proposed as an alternative to disruptive and expensive cleanup strategies. This dissertation summarizes results of two experiments, which tested potential of four phosphate amendments [trisodium trimetaphosphate, dodecasodium phytate (Na-IP6), calcium phytate (Ca-IP6) and hydroxyapatite] to immobilize Cu, Zn, and Pb in soil and Ni and U in sediment. Stability of immobilized contaminants was tested by selective leaching and solid phase speciation techniques. Hydroxyapatite lowered trace metal and U solubility with increasing treatment level and Ca-IP6 behaved in general similarly, except for a slight increase in Ni and Cu solubilities at higher amendment levels, presumably due to the chelation potential of phytate. Application of metaphosphate and Na-IP6 were proven unsuitable due to dispersion of soil organic matter and colloidal particles, which had a negative impact on contaminant solubility. Leaching techniques revealed amendment-derived changes in element fractionation and indicated that HA was suitable for Cu, Zn, and Pb immobilization, whereas Ca-IP6 only for Pb and U immobilization, and brought into question the efficacy of applying phosphates for immobilization of Ni. Qualitative spectroscopy disclosed Pb speciation in solid phase in the untreated soil and mechanisms of its transformation upon phosphate addition, but failed to identify any crystalline form of U in the sediment. Unamended Pb-contaminated soil showed strong diffraction patterns for anglesite, cerussite, and plumbojarosite. Hydroxyapatite and Ca-IP6 amendments facilitated precipitation of corkite and to a lesser extent drugmanite and pyromorphite. This is significant because pyromorphite is usually proposed as the main sink of Pb in the amended soils. Advisors/Committee Members: William P. Miller.

Subjects/Keywords: μ-XRD

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APA (6^th Edition):

Majs, F. (2009). Soluble phosphate amendments for metal and radionuclide immobilization. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/majs_frantisek_200912_phd

Chicago Manual of Style (16^th Edition):

Majs, Frantisek. “Soluble phosphate amendments for metal and radionuclide immobilization.” 2009. Doctoral Dissertation, University of Georgia. Accessed February 22, 2020. http://purl.galileo.usg.edu/uga_etd/majs_frantisek_200912_phd.

MLA Handbook (7^th Edition):

Majs, Frantisek. “Soluble phosphate amendments for metal and radionuclide immobilization.” 2009. Web. 22 Feb 2020.

Vancouver:

Majs F. Soluble phosphate amendments for metal and radionuclide immobilization. [Internet] [Doctoral dissertation]. University of Georgia; 2009. [cited 2020 Feb 22]. Available from: http://purl.galileo.usg.edu/uga_etd/majs_frantisek_200912_phd.

Council of Science Editors:

Majs F. Soluble phosphate amendments for metal and radionuclide immobilization. [Doctoral Dissertation]. University of Georgia; 2009. Available from: http://purl.galileo.usg.edu/uga_etd/majs_frantisek_200912_phd

NSYSU

2. Chen, Ting-Yu. Defect Chemistry and Microstructure of SrTiO3.

Degree: Master, Materials and Optoelectronic Science, 2010, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0806110-143433

► Abstract SrTiO3 is cubic at room temperature, and retains cubic until the phase transition to tetragonal at 105K (-168 °C). It is a wide-band-gap semiconductor… (more)

Subjects/Keywords: Nb2O5; TEM; SEM; XRD; SrTiO3

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APA (6^th Edition):

Chen, T. (2010). Defect Chemistry and Microstructure of SrTiO3. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0806110-143433

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):

Chen, Ting-Yu. “Defect Chemistry and Microstructure of SrTiO3.” 2010. Thesis, NSYSU. Accessed February 22, 2020. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0806110-143433.

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

MLA Handbook (7^th Edition):

Chen, Ting-Yu. “Defect Chemistry and Microstructure of SrTiO3.” 2010. Web. 22 Feb 2020.

Vancouver:

Chen T. Defect Chemistry and Microstructure of SrTiO3. [Internet] [Thesis]. NSYSU; 2010. [cited 2020 Feb 22]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0806110-143433.

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

Council of Science Editors:

Chen T. Defect Chemistry and Microstructure of SrTiO3. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0806110-143433

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

NSYSU

3. Lee, Yu-Ju. The physical properties of chromium-doped indium oxide thin films.

Degree: Master, Physics, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-144754

► Diluted magnetic oxides (DMO) are one of the new materials for the new generation spintronic devices. In2O3 series materials are the most used one in… (more)

Subjects/Keywords: spin; RKKY; CIO; XRD; ITO

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APA (6^th Edition):

Lee, Y. (2013). The physical properties of chromium-doped indium oxide thin films. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-144754

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):

Lee, Yu-Ju. “The physical properties of chromium-doped indium oxide thin films.” 2013. Thesis, NSYSU. Accessed February 22, 2020. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-144754.

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

MLA Handbook (7^th Edition):

Lee, Yu-Ju. “The physical properties of chromium-doped indium oxide thin films.” 2013. Web. 22 Feb 2020.

Vancouver:

Lee Y. The physical properties of chromium-doped indium oxide thin films. [Internet] [Thesis]. NSYSU; 2013. [cited 2020 Feb 22]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-144754.

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

Council of Science Editors:

Lee Y. The physical properties of chromium-doped indium oxide thin films. [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-144754

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

UCLA

4. Wong, Christine Megan. Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire.

Degree: Materials Science and Engineering, 2017, UCLA

URL: http://www.escholarship.org/uc/item/5rr1307x

► Exfoliation is a technique used to remove a thin, uniform layer of material from the bulk that involves the annealing of hydrogen ion-implanted materials in… (more)

▼ Exfoliation is a technique used to remove a thin, uniform layer of material from the bulk that involves the annealing of hydrogen ion-implanted materials in order to initiate defect nucleation and growth leading to guided crack propagation. This study presents an investigation into the annealing process required to initiate blistering (an essential precursor to exfoliation) in (0001) sapphire implanted at room temperature with hydrogen ions.Triple axis x-ray diffraction was used to characterize the evolution of the implanted layer for single crystal (0001) sapphire substrates implanted at room temperature at 360 keV with either a 5x1016 cm-2 or 8x1016 cm-2 dose of hydrogen ions. A simulation of the ion distribution in TRIM estimated that the projected range and thickness of the implanted layer for both doses was approximately 2.2 ï¿½m. Following implantation, the implanted sapphire was annealed using a two-step annealing procedure. The first step was performed at a lower temperature, ideally to nucleate and coarsen defects. Temperatures investigated ranged from 550 – 650 ï¿½C. The second step was performed at a higher temperature (800 ï¿½C) to induce further defect coarsening and surface blistering. After all annealing steps, triple axis ω/2θ and ω scans were taken to observe any changes in the diffraction profile – namely, any reduction in the amplitude and shift in the location of the fringes associated with strain in the crystal – which would correlate with defect growth and nucleation. It was found that significant strain fringe reduction first occurred after annealing at 650 ï¿½C for 8 hours for both doses; however, it was not clear whether or not this strain reduction was due primarily to hydrogen diffusion or to recovery of other defects induced during the ion implantation. The ω/2θ curves were then fit using Bede RADS in order to quantify the strain within the crystal and confirm the reduction of the strained layer within the crystal. Finally, Nomarski optical images of the sample surfaces were taken after each step to observe any visual changes or blistering that might have occurred. These optical images showed that the strain reduction observed using XRD did not correlate to blistering, as no blisters were observed in any of the optical images. Experimental results showed that at temperatures below 650 ï¿½C, no significant strain reduction occurs in hydrogen ion implanted (0001) sapphire. It has also been determined that for (0001) sapphire implanted at room temperature, it was not possible to produce surface blistering after a two-step annealing process at 650 ï¿½C and 800 ï¿½C, although significant strain reduction did occur, and ω scans showed peak broadening with subsequent annealing, indicating increasing mosaicity and potential defect nucleation. This was in contrast to previous findings that asserted that for sapphire annealed at 650 ï¿½C, surface blistering was observable.[7] As previous findings were based on sapphire implanted at elevated temperatures, this may imply that the sapphire substrate…

Subjects/Keywords: Materials Science; exfoliation; sapphire; xrd

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APA (6^th Edition):

Wong, C. M. (2017). Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/5rr1307x

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):

Wong, Christine Megan. “Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire.” 2017. Thesis, UCLA. Accessed February 22, 2020. http://www.escholarship.org/uc/item/5rr1307x.

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

MLA Handbook (7^th Edition):

Wong, Christine Megan. “Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire.” 2017. Web. 22 Feb 2020.

Vancouver:

Wong CM. Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire. [Internet] [Thesis]. UCLA; 2017. [cited 2020 Feb 22]. Available from: http://www.escholarship.org/uc/item/5rr1307x.

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

Council of Science Editors:

Wong CM. Strain Evolution of Annealed Hydrogen-Implanted (0001) Sapphire. [Thesis]. UCLA; 2017. Available from: http://www.escholarship.org/uc/item/5rr1307x

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

5. Laranjeira, Pedro Miguel Freire de Carvalho Pimentel e. Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X.

Degree: 2014, Instituto Superior de Ciências da Saúde Egas Moniz

URL: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/6261

►

Dissertação para obtenção de grau de Mestre em Dentisteria Restauradora e Estética

Em Medicina Dentária, o interesse por restaurações cerâmicas tem sido crescente. As inovações… (more)

▼

Dissertação para obtenção de grau de Mestre em Dentisteria Restauradora e Estética

Em Medicina Dentária, o interesse por restaurações cerâmicas tem sido crescente. As inovações têm sido constantes, tanto nos materiais como nas técnicas. A sua elevada resistência, aliada a uma estética imbativel, estão no centro deste interesse. Os materiais à base de zircónia lideram esta tendência. A sua natureza refractária, estabilidade química, dureza elevada e estética superior, tornam estes materiais muito apelativos para a confecção de restaurações duradouras e estéticas. Este projecto pretendeu caracterizar e avaliar as propriedades mecânicas de três materiais à base de zircónia, antes e após serem submetidos a processos de envelhecimento acelerado.

Dos materiais utilizados neste estudo, dois são óxidos de zircónia estabilizados por Ítria, o material Lava (3M ESPE, St Paul, MN, EUA) e o material IPS e.max® ZirCAD (Ivoclar Vivadent, Schaan, Liechtenstein). O terceiro material é o NanoZr (Matsushita Electric Works Co., Shinbashi, Toquio, Japão), um óxido de zircónia estabilizado por Céria.

Todos os materiais utilizados são comercializados para uso em Medicina Dentária. Os materiais foram submetidos a três tipos de envelhecimento artificial: durante 5 horas a 2 bar e 134ºC; durante 30000 ciclos em solução de saliva artificial, em ciclos de 5ºC e 55ºC; e durante 30000 ciclos em solução de saliva artificial e flúor, em ciclos de 5ºC e 55ºC.

As amostras foram testadas à resistência flexural bi-axial, e avaliadas por difracção de raios-X e fluorescência de raios-X. O envelhecimento acelerado causou aumento significativo de fracção monoclínica nos materiais Y-TZP, não tendo causado alteração significativa no material Ce-TZP. O envelhecimento acelerado não causou alteração da composição elementar dos materiais estudados. O envelhecimento acelerado apenas causou alterações significativas nos valores de resistência flexural bi-axial no material Lava termociclado em Saliva e Flúor.

Advisors/Committee Members: Perdigão, Jorge, Fernandes, Braz.

Subjects/Keywords: Envelhecimento acelerado; Zircónia; XRD; BFT

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APA (6^th Edition):

Laranjeira, P. M. F. d. C. P. e. (2014). Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X. (Thesis). Instituto Superior de Ciências da Saúde Egas Moniz. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/6261

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):

Laranjeira, Pedro Miguel Freire de Carvalho Pimentel e. “Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X.” 2014. Thesis, Instituto Superior de Ciências da Saúde Egas Moniz. Accessed February 22, 2020. https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/6261.

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

MLA Handbook (7^th Edition):

Laranjeira, Pedro Miguel Freire de Carvalho Pimentel e. “Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X.” 2014. Web. 22 Feb 2020.

Vancouver:

Laranjeira PMFdCPe. Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X. [Internet] [Thesis]. Instituto Superior de Ciências da Saúde Egas Moniz; 2014. [cited 2020 Feb 22]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/6261.

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

Council of Science Editors:

Laranjeira PMFdCPe. Efeito do envelhecimento acelerado em materiais à base de zircónia: resistência flexural bi-axial, difracção de raios X e fluorescência de raios X. [Thesis]. Instituto Superior de Ciências da Saúde Egas Moniz; 2014. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/6261

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

UCLA

6. Zhang, Teng. Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure.

Degree: Materials Science and Engineering, 2018, UCLA

URL: http://www.escholarship.org/uc/item/68r3b1ww

► AlGaN/GaN heterostructure is one of the most important materials in applications like High Electron Mobility Transistors (HEMT) and other high speed high power devices. Harsh… (more)

Subjects/Keywords: Engineering; GaN; HEMT; Heterostructure; XRD

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APA (6^th Edition):

Zhang, T. (2018). Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/68r3b1ww

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):

Zhang, Teng. “Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure.” 2018. Thesis, UCLA. Accessed February 22, 2020. http://www.escholarship.org/uc/item/68r3b1ww.

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

MLA Handbook (7^th Edition):

Zhang, Teng. “Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure.” 2018. Web. 22 Feb 2020.

Vancouver:

Zhang T. Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure. [Internet] [Thesis]. UCLA; 2018. [cited 2020 Feb 22]. Available from: http://www.escholarship.org/uc/item/68r3b1ww.

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

Council of Science Editors:

Zhang T. Thermal Stability and Degradation Analysis of GaN/AlGaN Heterostructure. [Thesis]. UCLA; 2018. Available from: http://www.escholarship.org/uc/item/68r3b1ww

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

7. Christmann, Anja. Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser.

Degree: 2018, Technische Universität Dortmund

URL: https://doi.org/10.21268/20181004-115159 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181004-115428-0 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000657 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000425/Db113765.pdf

► Das Ziel dieser Arbeit ist die Aufklärung der rohstoffabhängigen Reaktionskinetik, um schnell aufschmelzende Glas-Gemenge identifizieren zu können. Untersucht wurden verschiedene Modellgläser des Natrium-Boro-Alumosilicat-Systems (NABS), die… (more)

▼ Das Ziel dieser Arbeit ist die Aufklärung der rohstoffabhängigen Reaktionskinetik, um schnell aufschmelzende Glas-Gemenge identifizieren zu können. Untersucht wurden verschiedene Modellgläser des Natrium-Boro-Alumosilicat-Systems (NABS), die sowohl hinsichtlich des Al2O3-Gehalts und der Al2O3-Rohstoffe als auch unter Berücksichtigung unterschiedlicher Boroxidrohstoffe variiert wurden. Eine Kombination aus Thermoanalyse, in-situ Hochtemperatur-Röntgenbeugung, Heiztischmikroskopie und Abbruchbränden ermöglichte eine eingehende Charakterisierung der beim Einschmelzen dieser Glasgemenge ablaufenden physikalischen und chemischen Reaktionen. Für stetig aufgeheizte Glasgemenge zeigten sich zu Beginn des Aufschmelzprozesses vom Al2O3-Gehalt unabhängige Na2O SiO2-Reaktionen und eine Ausbildung von intermediären Phasen. Als letzte verbliebene kristalline Phase wurde stets Korund festgestellt. In Bezug auf den Umwandlungsgrad zwischen Gemenge und Glas wurden zwei kinetischen Mechanismen unterschieden: Die primären Reaktionen, die ca. 90-95-% des Gemenges umsetzen, laufen relativ schnell ab, dagegen benötigen die sekundären Reaktionen (Restkornlösung von intermediären Kristallen) trotz höherer Temperaturen deutlich länger. Werden Gemenge in einen heißen Ofen eingelegt, tritt eine abweichende Ausbildung von Intermediaten und mit Carnegieit, eine andere persistente kristalline Phase auf. Da Carnegieit (1562 °C) im Vergleich zu Korund (2072 °C) eine deutlich niedrigere Schmelztemperatur aufweist, was mit einer schnelleren Restkornlösung in der Silicatschmelze einher ging, führten hohe Heizraten verknüpft mit hohen Temperaturgradienten zu einem schnelleren Einschmelzprozess. Mit der Variation des Al2O3-Rohstoffes veränderten sich die Art und Anteile intermediär gebildeter Phasen und damit die Einschmelzzeit. Bei vermehrter Ausbildung von Carnegieit war diese um bis zu 20 % kürzer als im Falle eines höheren Cristobalitanteils. Bei Zusatz von Boroxid erhöhte sich die Einschmelzzeit signifikant, je nach Rohstoffart um bis 62,5 %. Die Kinetik der Reaktionen wurde in erster Näherung mit der Johnson-Mehl-Avrami-Kolmogorow-Methode beschrieben. Unter Annahme einer ersten Reaktionsordnung und regulären Wachstumsbegrenzung konnten zwei Bereiche mit unterschiedlichen kinetischen Koeffizienten bestimmt werden, die unterschiedlichen Lösungsmechanismen zugeschrieben wurden. Durch zielgerichtete Rohstoffauswahl konnten ihre Anteile soweit verändert werden, um eine möglichst kurze Gesamtaufschmelzzeit zu erreichen. In Vierstoffsystem (Na2O B2O3 Al2O3 SiO2) wurde dies durch Kombination von Korund als Al2O3- Rohstoff sowie Borsäure als B2O3-Rohstoff erreicht. Advisors/Committee Members: Deubener, Joachim.

Subjects/Keywords: ddc:620.1; Einschmelzverhalten – Glas – XRD

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APA (6^th Edition):

Christmann, A. (2018). Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser. (Thesis). Technische Universität Dortmund. Retrieved from https://doi.org/10.21268/20181004-115159 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181004-115428-0 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000657 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000425/Db113765.pdf

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):

Christmann, Anja. “Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser.” 2018. Thesis, Technische Universität Dortmund. Accessed February 22, 2020. https://doi.org/10.21268/20181004-115159 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181004-115428-0 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000657 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000425/Db113765.pdf.

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

MLA Handbook (7^th Edition):

Christmann, Anja. “Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser.” 2018. Web. 22 Feb 2020.

Vancouver:

Christmann A. Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser. [Internet] [Thesis]. Technische Universität Dortmund; 2018. [cited 2020 Feb 22]. Available from: https://doi.org/10.21268/20181004-115159 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181004-115428-0 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000657 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000425/Db113765.pdf.

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

Council of Science Editors:

Christmann A. Rohstoffabhängige Untersuchungen an aufschmelzenden Gemengen für Natrium-(Boro)-Alumosilicat-Gläser. [Thesis]. Technische Universität Dortmund; 2018. Available from: https://doi.org/10.21268/20181004-115159 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181004-115428-0 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000657 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000425/Db113765.pdf

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

8. Santos, Priscila Ribeiro dos. A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio.

Degree: Mestrado, Física, 2008, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02032009-163100/ ;

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Esta dissertação de mestrado descreve o estudo realizado sobre como a oferta de estrôncio afeta a razão Sr/Ca em hidroxiapatita formada in vitro. Este trabalho… (more)

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Esta dissertação de mestrado descreve o estudo realizado sobre como a oferta de estrôncio afeta a razão Sr/Ca em hidroxiapatita formada in vitro. Este trabalho pretende dar subsídios para que posteriormente seja possível fazer um estudo da razão Sr/Ca em função da temperatura também em hidroxiapatita formada in vitro. Foram utilizadas células osteoblásticas da linhagem MG-63 com concentrações de estrôncio no meio de cultura que variaram de 0,0 até 33,0 microgramas por mL de meio. Os nódulos ósseos formados pelas células foram caracterizados pelas técnicas Absorção de Infravermelho por Transformada de Fourier (FT-IR), que foi utilizada com o objetivo de identificar ligações de fosfato nas amostras, e Difração de Raios-X (XRD), que teve como objetivo confirmar a presença de hidroxiapatita nos minerais formados e comparar a cristalinidade do material com e sem estrôncio. A quantificação da razão Sr/Ca foi feita utilizando as técnicas Retro-espalhamento Rutherford (RBS) e Emissão de Raios-X por Indução de Partículas (PIXE), que são capazes de fazer a identificação e quantificação elementar. Os resultados obtidos mostram que os nódulos formados são compostos por hidroxiapatita. Com relação à quantificação, mostrou-se que não foi possível substituir mais de 10% do íons de cálcio por íons de estrôncio, o que está de acordo com previsões teóricas. Além disso, para altas concentrações de estrôncio no meio a mineralização do cálcio diminuiu duas ordens de grandeza e as medidas da razão Sr/Ca obtiveram resultados bastante dispersos, indicando uma possível mudança metabólica das células que parece inviabilizar o bom funcionamento fisiológico das mesmas.

This Masters dissertation describes the study of how the availability of strontium affects Sr/Ca ratio of in vitro hydroxyapatite. This work intends to provide the basic understanding needed to a future study of how temperature changes Sr/Ca ratio in this material. MG-63 cells were grown in the culture medium doped with 0.0, 1.0, 2.0, 4.1, 8.2, 16.4, 22.9 and 33.0 micrograms of Sr/mL. The nodules formed by osteoblastic cells were characterized by Fourier Transform Infrared Spectroscopy (FT-IR) technique, used to identify phosphate domain, and X-Ray Diffraction (XRD) technique, which was used to verify the presence of crystallized hydroxyapatite in the mineral composition with and without strontium. Quantification of Sr/Ca ratio was made using the Rutherford Backscattering (RBS) and Particle Induced X-Ray Emission (PIXE) techniques, which are used to do elementary identification and quantification. The results of characterization confirmed the presence of hydroxyapatite in the cultivated MG-63 cells. The experiments have shown that it was not possible to replace more than 10% of the calcium ions by strontium, which is consistent with theoretical predictions. In addition, high concentrations of strontium in the growing solution, reduced the mineralization yield and also the Sr/Ca ratio, indicating a possible change in the metabolism of the cells.

Advisors/Committee Members: Added, Nemitala.

Subjects/Keywords: hidroxiapatita; hydroxyapatite; PIXE; PIXE; Sr/Ca; Sr/Ca; XRD; XRD

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

APA (6^th Edition):

Santos, P. R. d. (2008). A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02032009-163100/ ;

Chicago Manual of Style (16^th Edition):

Santos, Priscila Ribeiro dos. “A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio.” 2008. Masters Thesis, University of São Paulo. Accessed February 22, 2020. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02032009-163100/ ;.

MLA Handbook (7^th Edition):

Santos, Priscila Ribeiro dos. “A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio.” 2008. Web. 22 Feb 2020.

Vancouver:

Santos PRd. A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio. [Internet] [Masters thesis]. University of São Paulo; 2008. [cited 2020 Feb 22]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02032009-163100/ ;.

Council of Science Editors:

Santos PRd. A razão Sr/Ca em hidroxiapatita produzida a partir de células ósseas humanas em ambientes com diferentes concentrações de estrôncio. [Masters Thesis]. University of São Paulo; 2008. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02032009-163100/ ;

Vilnius University

9. Bagdzevičienė, Jurga. Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds.

Degree: PhD, Chemistry, 2012, Vilnius University

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152636-81665 ;

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In this dissertation, the results of detailed investigation of the seven unique art objects are presented. The presented results show that complex apllying of the… (more)

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In this dissertation, the results of detailed investigation of the seven unique art objects are presented. The presented results show that complex apllying of the instrumental analytical methods of OM, FTIR, SEM/EDX, XRD, μXRD and µRS is accurate and efficient way to identify composition of works of art and archaeological finds of glass, pigments or describe their technology. IR spectroscopy has been successfully applied to determine pigments and some pigment mixtures in painting‘s ground, paint layers, and destruction products in archaeological glass. The SEM/EDX analysis successfully can be used in determining the main elements of the paint samples at different cross-section points perform a qualitative analysis of the pigments (cinnabar, lead white, chalk, smalt et. al. ), in some cases, to discuss the features of the production of pigments. The SEM/EDX provided a possibility to examine three archaeological glass beads. According to the elemental composition, microstructure, and the specific features in different areas of the glass was defined nature of the destruction of glass. XRD and μXRD analysis successfully can be used in determining the crystalline phases in the paint and archaeological glass samples. Identify following pigments and their mixtures: calcite CaCO3, carbon, lead tin yellow type I Pb2SnO4, lead tin yellow type II PbSn03, hydrocerussite 2PbCO3 ∙ Pb (OH)2, cerussite PbCO3, Egyptian blue CaCuSi4O10, gypsum CaSO4 ∙ 2H2O, anhydrite CaSO4, huntite Mg3Ca(CO3)4... [to full text]

Septynių unikalių, didelę istorinę ir meninę vertę turinčių objektų – trijų XVII ir XVIII a. paveikslų, Senovės Egipto sarkofago bei trijų archeologinių stiklo karolių iš Kernavės-Kriveikiškių kapinyno – tyrimams sėkmingai pritaikyti OM, FTIR, SEM/EDX, XRD, μXRD ir µRS analizės metodai. Konstatuota, kad taikant kompleksinius tyrimus galima tiksliai ir efektyviai identifikuoti kūrinių medžiagas, charakterizuoti jų sandarą, apibūdinti technologijas. IR spektroskopija sėkmingai panaudota identifikuojant tapybos grunto ir dažų sluoksnių neorganinius tapybos pigmentus ir jų mišinius bei stiklo korozijos produktus. Parodyta, kad IR spektroskopija gali būti sėkmingai panaudota identifikuojant istorines restauravimo medžiagas. SEM/EDX analizės metodu nustatyta tapybos elementinė sudėtis, identifikuoti cinoberio, švino baltojo, kreidos, smaltos, suriko ir kt. pigmentai. SEM/EDX analizės metodu ištirti trys archeologiniai stiklo karoliai. Pagal elementinės sudėties skirtumus ir specifinius mikrostruktūros bruožus nustatytas stiklo destrukcijos pobūdis. XRD ir μXRD analizės metodais sėkmingai identifikuoti šie pigmentai ir/ar jų mišiniai: kalcitas CaCO3, anglis, I tipo Pb–Sn geltonasis Pb2SnO4, II tipo Pb–Sn geltonasis PbSn03, hidrocerusitas 2PbCO3∙Pb(OH)2, cerusitas PbCO3, Egipto mėlynasis CaCuSi4O10, gipsas CaSO4∙2H2O, anhidritas CaSO4, huntitas Mg3Ca(CO3)4, dolomitas CaMg(CO3)2. Pirmą kartą μRS metodu identifikuotas II tipo švino alavo geltonasis pigmentas, archeologiniam stiklui... [toliau žr. visą tekstą]

Advisors/Committee Members: Padarauskas, Audrius (Doctoral dissertation committee chair), Jurkonienė, Sigita (Doctoral dissertation committee member), Lujanienė, Galina (Doctoral dissertation committee member), Norkus, Eugenijus (Doctoral dissertation committee member), Vičkačkaitė, Vida (Doctoral dissertation committee member), Kareiva, Aivaras (Doctoral dissertation opponent), Lukšienė, Benedikta (Doctoral dissertation opponent), Tautkus, Stasys (Doctoral dissertation supervisor).

Subjects/Keywords: Pigments; SEM/EDX; XRD; FTIR; Pigmentai; SEM/EDX; XRD; FTIR

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bagdzevičienė, J. (2012). Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152636-81665 ;

Chicago Manual of Style (16^th Edition):

Bagdzevičienė, Jurga. “Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds.” 2012. Doctoral Dissertation, Vilnius University. Accessed February 22, 2020. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152636-81665 ;.

MLA Handbook (7^th Edition):

Bagdzevičienė, Jurga. “Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds.” 2012. Web. 22 Feb 2020.

Vancouver:

Bagdzevičienė J. Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds. [Internet] [Doctoral dissertation]. Vilnius University; 2012. [cited 2020 Feb 22]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152636-81665 ;.

Council of Science Editors:

Bagdzevičienė J. Investigation and Description of Ancient Pigments in Paintings and Archaeological Glass Finds. [Doctoral Dissertation]. Vilnius University; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152636-81665 ;

Vilnius University

10. Bagdzevičienė, Jurga. Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas.

Degree: Dissertation, Chemistry, 2012, Vilnius University

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152650-40394 ;

►

Septynių unikalių, didelę istorinę ir meninę vertę turinčių objektų – trijų XVII ir XVIII a. paveikslų, Senovės Egipto sarkofago bei trijų archeologinių stiklo karolių iš… (more)

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Septynių unikalių, didelę istorinę ir meninę vertę turinčių objektų – trijų XVII ir XVIII a. paveikslų, Senovės Egipto sarkofago bei trijų archeologinių stiklo karolių iš Kernavės-Kriveikiškių kapinyno – tyrimams sėkmingai pritaikyti OM, FTIR, SEM/EDX, XRD, μXRD ir µRS analizės metodai. Konstatuota, kad taikant kompleksinius tyrimus galima tiksliai ir efektyviai identifikuoti kūrinių medžiagas, charakterizuoti jų sandarą, apibūdinti technologijas. IR spektroskopija sėkmingai panaudota identifikuojant tapybos grunto ir dažų sluoksnių neorganinius tapybos pigmentus ir jų mišinius bei stiklo korozijos produktus. Parodyta, kad IR spektroskopija gali būti sėkmingai panaudota identifikuojant istorines restauravimo medžiagas. SEM/EDX analizės metodu nustatyta tapybos elementinė sudėtis, identifikuoti cinoberio, švino baltojo, kreidos, smaltos, suriko ir kt. pigmentai. SEM/EDX analizės metodu ištirti trys archeologiniai stiklo karoliai. Pagal elementinės sudėties skirtumus ir specifinius mikrostruktūros bruožus nustatytas stiklo destrukcijos pobūdis. XRD ir μXRD analizės metodais sėkmingai identifikuoti šie pigmentai ir/ar jų mišiniai: kalcitas CaCO3, anglis, I tipo Pb–Sn geltonasis Pb2SnO4, II tipo Pb–Sn geltonasis PbSn03, hidrocerusitas 2PbCO3∙Pb(OH)2, cerusitas PbCO3, Egipto mėlynasis CaCuSi4O10, gipsas CaSO4∙2H2O, anhidritas CaSO4, huntitas Mg3Ca(CO3)4, dolomitas CaMg(CO3)2. Pirmą kartą μRS metodu identifikuotas II tipo švino alavo geltonasis pigmentas, archeologiniam stiklui... [toliau žr. visą tekstą]

In this dissertation, the results of detailed investigation of the seven unique art objects are presented. The presented results show that complex apllying of the instrumental analytical methods of OM, FTIR, SEM/EDX, XRD, μXRD and µRS is accurate and efficient way to identify composition of works of art and archaeological finds of glass, pigments or describe their technology. IR spectroscopy has been successfully applied to determine pigments and some pigment mixtures in painting‘s ground, paint layers, and destruction products in archaeological glass. The SEM/EDX analysis successfully can be used in determining the main elements of the paint samples at different cross-section points perform a qualitative analysis of the pigments (cinnabar, lead white, chalk, smalt et. al. ), in some cases, to discuss the features of the production of pigments. The SEM/EDX provided a possibility to examine three archaeological glass beads. According to the elemental composition, microstructure, and the specific features in different areas of the glass was defined nature of the destruction of glass. XRD and μXRD analysis successfully can be used in determining the crystalline phases in the paint and archaeological glass samples. Identify following pigments and their mixtures: calcite CaCO3, carbon, lead tin yellow type I Pb2SnO4, lead tin yellow type II PbSn03, hydrocerussite 2PbCO3 ∙ Pb (OH)2, cerussite PbCO3, Egyptian blue CaCuSi4O10, gypsum CaSO4 ∙ 2H2O, anhydrite CaSO4, huntite Mg3Ca(CO3)4... [to full text]

Advisors/Committee Members: Padarauskas, Audrius (Doctoral dissertation committee chair), Jurkonienė, Sigita (Doctoral dissertation committee member), Lujanienė, Galina (Doctoral dissertation committee member), Norkus, Eugenijus (Doctoral dissertation committee member), Vičkačkaitė, Vida (Doctoral dissertation committee member), Kareiva, Aivaras (Doctoral dissertation opponent), Lukšienė, Benedikta (Doctoral dissertation opponent), Tautkus, Stasys (Doctoral dissertation supervisor).

Subjects/Keywords: Pigmentai; SEM/EDX; XRD; FTIR; Pigments; SEM/EDX; XRD; FTIR

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bagdzevičienė, J. (2012). Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152650-40394 ;

Chicago Manual of Style (16^th Edition):

Bagdzevičienė, Jurga. “Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas.” 2012. Doctoral Dissertation, Vilnius University. Accessed February 22, 2020. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152650-40394 ;.

MLA Handbook (7^th Edition):

Bagdzevičienė, Jurga. “Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas.” 2012. Web. 22 Feb 2020.

Vancouver:

Bagdzevičienė J. Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas. [Internet] [Doctoral dissertation]. Vilnius University; 2012. [cited 2020 Feb 22]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152650-40394 ;.

Council of Science Editors:

Bagdzevičienė J. Senovinių pigmentų tapybos kūriniuose ir archeologinio stiklo radiniuose tyrimas ir apibūdinimas. [Doctoral Dissertation]. Vilnius University; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120629_152650-40394 ;

Vilnius University

11. Krapukaitytė, Aušra. Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas.

Degree: Dissertation, Chemistry, 2009, Vilnius University

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154423-80221 ;

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Šioje daktaro disertacijoje pirmoje dalyje nustatyta šiuolaikinės, o antroje dalyje – archeologinės keramikos gaminių elementinė ir fazinė sudėtis, bei ištirta morfologija. Šiuolaikinės ir archeologinės keramikos… (more)

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Šioje daktaro disertacijoje pirmoje dalyje nustatyta šiuolaikinės, o antroje dalyje – archeologinės keramikos gaminių elementinė ir fazinė sudėtis, bei ištirta morfologija. Šiuolaikinės ir archeologinės keramikos pavyzdžių elementinė sudėtis nustatyta Rentgeno spindulių dispersinės analizės (EDX), liepsnos atominės absorbcinės spektrometrijos (LAAS), titrimetrinės ir spektrofotometrinės analizės metodais. Parodyta, kad visų keraminių pavyzdžių kokybinė bei kiekybinė sudėtis yra skirtinga Nustatyta, kad visuose keramikos mėginiuose pagrindiniai elementai yra silicis ir aliuminis. SiO2 sudaro 46 – 60% keramikos sudėties, Al2O3 – apie 17 – 33%. Fe, Na, Mg, K, Ca ir Ti mėginiuose rasta kelis kartus mažiau. EDX analizė gali būti sėkmingai naudojama nustatant pagrindinius elementus, kurių kiekiai viršija 0,5 % bendros elementinės sudėties. Norint nustatyti tikslią keramikos sudėtį ir pėdsakinius elementus reikia naudoti LAAS analizės metodą. Aliuminio kiekį keramikoje patikimai galima nustatyti titrimetriniu, o silicio ir titano kiekį – spektrofotometriniais metodais. Ištyrus šiuolaikę ir archeologinę keramiką Rentgeno spindulių difrakcine analize (XRD), nustatyta, kad visų keramikų pagrindinė fazė yra vienoda – silicio dioksidas SiO2, tačiau jų bendra fazinė sudėtis skiriasi. Skirtinguose kermikos pavyzdžiuose buvo aptikos šios fazės: kvarcas, dolomitas, kaolinas, albitas, mikroklinas, muskovitas, mulitas, hematitas, rutilas, diopsidas, korundas, titanitas, natrio anortitas.... [toliau žr. visą tekstą]

The elemental composition of the samples of modern and archaeological ceramics was determined using the energy dispersive X-ray analysis, flame atomic absorption spectrometry, titrimetric and spectrophotometric analysis methods. It has been shown that the qualitative and quantitative composition of all the samples is different. It has been established that silicon and aluminium are the main elements in all the samples. SiO2 accounts for 46–60 % of the composition of the ceramics, Al2O3 – for some 17–33%. The amounts of Fe, Na, Mg, K, Ca and Ti discovered in the samples are several times lesser. EDX analysis can successfully be used in determining the main elements whose amounts exceed 0.5% of the overall elemental composition. In order to determine the exact composition of ceramics one has to employ the FAAS analysis method. To determine in a credible manner the amount of aluminium in ceramics, one can use the titrimetric method, and the amount of silicon and titanium – spectrophotometric methods. Upon examination of the modern and archaeological ceramics by diffraction analysis it has been established that the main phase of all the samples is the same – quartz SiO2, however their phase composition varies. In different samples the following phases have been discovered: calcite, dolomite, kaolinite, albite, microcline, muscovite, mullite, hematite, rutile, diopside, corundum, titanite, and sodium anorthite. Being aware of the phase composition, it has been established that the... [to full text]

Advisors/Committee Members: Padarauskas, Audrius (Doctoral dissertation committee chair), Barkauskas, Jurgis (Doctoral dissertation committee member), Ramanauskas, Rimantas (Doctoral dissertation committee member), Jurkonienė, Sigita (Doctoral dissertation committee member), Lukšienė, Benedikta (Doctoral dissertation committee member), Vičkačkaitė, Vida (Doctoral dissertation opponent), Naujalis, Evaldas (Doctoral dissertation opponent), Tautkus, Stasys (Doctoral dissertation supervisor), Tautkus, Stasys (Doctoral dissertation advisor).

Subjects/Keywords: Keramika; XRD; SEM; IR; Termogravimetrija; Ceramics; XRD; SEM; IR; Thermogravimetric analysis

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

APA (6^th Edition):

Krapukaitytė, A. (2009). Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154423-80221 ;

Chicago Manual of Style (16^th Edition):

Krapukaitytė, Aušra. “Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas.” 2009. Doctoral Dissertation, Vilnius University. Accessed February 22, 2020. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154423-80221 ;.

MLA Handbook (7^th Edition):

Krapukaitytė, Aušra. “Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas.” 2009. Web. 22 Feb 2020.

Vancouver:

Krapukaitytė A. Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas. [Internet] [Doctoral dissertation]. Vilnius University; 2009. [cited 2020 Feb 22]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154423-80221 ;.

Council of Science Editors:

Krapukaitytė A. Šiuolaikinės ir archeologinės keramikos tyrimas ir apibūdinimas. [Doctoral Dissertation]. Vilnius University; 2009. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154423-80221 ;

12. Singh, Rajiv Kumar. Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates.

Degree: MS, Chemistry, 2012, University of North Dakota

URL: https://commons.und.edu/theses/1321

► Recent decades have witnessed the discovery of a wide variety of nanomaterials. These nanomaterials vary from zero-dimensional nanodots to three-dimensional nanoflowers. However the properties… (more)

▼ Recent decades have witnessed the discovery of a wide variety of nanomaterials. These nanomaterials vary from zero-dimensional nanodots to three-dimensional nanoflowers. However the properties of these nanomaterials have not been fully explored. A majority of the nonmaterials discovered so far are inorganic. There is little information about nanomaterials which are entirely based on organic compounds. Therefore this thesis focuses on the synthesis of two-dimensional nanosheets based on organic frameworks. In this study, a number of two-armed and three-armed carboxamides and carbamates have been synthesized, characterized and self-assembly process was studied. The self-assembly of these amides and carbamates were studied in a large number of single solvents as well as combination of solvents. Two-armed amides and carbamates having aromatic cores are found to have poor solubility in all but DMF and DMSO. The two-armed amides and carbamates having linker alkyl chain are found to have good solubility and crystal formation in a few solvents, but the quality of the crystal is not good enough for the XRD analysis. The polar solvents along with a trace amount of water are found to be more effective in getting perfect crystals of three-armed carbamates for X-ray crystallography. Carbamates with side-arms of three carbons and a cyclohexyl ring form perfect quality crystals in EtOAc, MeCN, and THF:H2O. In the process of growing single crystal several crystallization techniques were used. Slow evaporation process is found to be more efficient in getting good quality crystal. The crystal structures of carbamates have been determined as a part of the project .The morphology of the nanosheets was also studied by the transmission electron microscope (TEM). The TEM image of the carbamates reveals that its morphology is two-dimensional sheet. Additionally, data from powdered XRD have also revealed the formation of same or similar crystalline isoform from a variety of conditions. Advisors/Committee Members: Qianli Chu.

Subjects/Keywords: Carbamates; Crystal Structure; Powdered XRD; Self-assembly; TEM; XRD

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

APA (6^th Edition):

Singh, R. K. (2012). Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates. (Masters Thesis). University of North Dakota. Retrieved from https://commons.und.edu/theses/1321

Chicago Manual of Style (16^th Edition):

Singh, Rajiv Kumar. “Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates.” 2012. Masters Thesis, University of North Dakota. Accessed February 22, 2020. https://commons.und.edu/theses/1321.

MLA Handbook (7^th Edition):

Singh, Rajiv Kumar. “Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates.” 2012. Web. 22 Feb 2020.

Vancouver:

Singh RK. Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates. [Internet] [Masters thesis]. University of North Dakota; 2012. [cited 2020 Feb 22]. Available from: https://commons.und.edu/theses/1321.

Council of Science Editors:

Singh RK. Synthesis, Characterization, And Self-Assembly Of Bi-Carbamates And Tri-Carbamates. [Masters Thesis]. University of North Dakota; 2012. Available from: https://commons.und.edu/theses/1321

Anna University

13. Mettilda M. Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;.

Degree: Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/41936

►

newline After reviewing past work into the enzymatic treatment of cotton newlineyarns and composites an account is given of the cellulase treatment of cotton newlineyarns… (more)

Subjects/Keywords: Scanning Electron Microscopy; XRD X ray diffraction

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APA (6^th Edition):

M, M. (2015). Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/41936

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):

M, Mettilda. “Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;.” 2015. Thesis, Anna University. Accessed February 22, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/41936.

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

MLA Handbook (7^th Edition):

M, Mettilda. “Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;.” 2015. Web. 22 Feb 2020.

Vancouver:

M M. Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;. [Internet] [Thesis]. Anna University; 2015. [cited 2020 Feb 22]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/41936.

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

Council of Science Editors:

M M. Studies on cellulase treated Cotton yarns and polypropylene Cotton sisal fibre hybrid composites;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/41936

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

University of Alberta

14. Hooshiar Fard, Mohammad Ali. Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes.

Degree: PhD, Department of Chemical and Materials Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/ft848r44g

► Production of oil from the second largest oil deposit in the world, i.e., the Alberta oil sands containing approximately 13% of total proven oil reserves… (more)

▼ Production of oil from the second largest oil deposit in the world, i.e., the Alberta oil sands containing approximately 13% of total proven oil reserves in the world (169.9 billion barrels), has been shown to be significantly influenced by clay minerals. Clay minerals in particular play a key role in the settling behaviour of massive amounts of aqueous tailings resulting from water-based bitumen extraction. A nonaqueous extraction process is of special interest to extract bitumen from oil sands due to its potential advantages, such as high bitumen recovery even from low grade oil sands ores and the elimination of slow settling, sludge tailings ponds with stable suspensions. While clay minerals have been characterized in water-based bitumen extraction from the oil sands to some extent, the gap of knowledge in the characterization of clay minerals in a nonaqueous bitumen extraction process has led to the current research. A nonaqueous bitumen extraction process was established where only toluene and heptane, with no water additions, were used to extract bitumen from oil sands ore samples. Bitumen recovery and product quality were studied under different process conditions, such as the ratio of toluene to heptane and settling time. Bitumen recovery was found to be insensitive to the characteristics of the oil sands ores, such as processability and fines content, although the high fines ore sample was more sensitive to the extraction conditions. A product with high purity, containing more than 99.5 wt% bitumen on a solvent-free basis, was produced at room temperature under the optimum extraction conditions tested. Quantitative x-ray diffraction (XRD) analysis revealed an enrichment of kaolinite in the extraction products (froth stream in water-based extraction and supernatant in nonaqueous extraction) when compared with the ore. High resolution transmission electron microscopy (HRTEM) investigations showed the presence of monolayer discrete smectitic clay minerals (not detectable by XRD). Illite-smectite expandability results calculated from HRTEM data have made it possible to explain the extraordinarily high surface activity in the primary froth stream. Scanning electron microscopy (SEM) observations showed some important features (clay-organic aggregates) which affect the settling behaviour of the solids after nonaqueous extraction.

Subjects/Keywords: Oil Sands, Clay Minerals, XRD, TEM

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APA (6^th Edition):

Hooshiar Fard, M. A. (2011). Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/ft848r44g

Chicago Manual of Style (16^th Edition):

Hooshiar Fard, Mohammad Ali. “Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes.” 2011. Doctoral Dissertation, University of Alberta. Accessed February 22, 2020. https://era.library.ualberta.ca/files/ft848r44g.

MLA Handbook (7^th Edition):

Hooshiar Fard, Mohammad Ali. “Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes.” 2011. Web. 22 Feb 2020.

Vancouver:

Hooshiar Fard MA. Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes. [Internet] [Doctoral dissertation]. University of Alberta; 2011. [cited 2020 Feb 22]. Available from: https://era.library.ualberta.ca/files/ft848r44g.

Council of Science Editors:

Hooshiar Fard MA. Characterization of Clay Minerals in the Athabasca Oil Sands in Water Extraction and Nonaqueous Solvent Extraction Processes. [Doctoral Dissertation]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/ft848r44g

Anna University

15. Venkatesh N. Studies on synthesis of biosurfactants and their applications.

Degree: Chemical engineering, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/9983

►

Surfactants are surface active compounds capable of reducing surface and interfacial tension at the interfaces between liquids, solids and gases, thereby allowing them to mix… (more)

▼

Surfactants are surface active compounds capable of reducing surface and interfacial tension at the interfaces between liquids, solids and gases, thereby allowing them to mix or disperse readily as emulsions in water or other liquids. The enormous market demand for surfactants is currently met by numerous synthetic, mainly petroleum based, chemical surfactants, which are toxic to environment and not easily biodegradable. In the present research work, studies were carried out on synthesis and culture media optimization of three industrially important biosurfactants sophorolipids, surfactin and rhamnolipids. After ascertaining the optimum process conditions, two unconventional substrates, waste frying sunflower oil and waste frying rice bran oil were employed as carbon substrates, and the yield of biosurfactants produced were reported. The objective of utilizing the waste frying oils is not only to decrease the product cost but to find an avenue to dispose eco hazardous waste. Glucose was found to be the best carbon source for the synthesis of surfactin from Bacillus subtilis MTCC 2423 at a concentration level of 3 g/l, which produced 1.285 g/l of surfactin. Glucose was found to be the best carbons substrate for Pseudomonas aeruginosa MTCC 2297. Optimum levels of glucose, sodium nitrate, temperature and pH were found to be 3.48 g/l, 0.39 g/l, 34.07and#8304;C, 7.4 respectively, by response surface methodology. Sophorolipids produced with glucose substrate (SL-G) has shown very good inhibitory action on Staphylococcus aureus and Micrococcus luteus at low concentrations. Average particle size produced as per the EDX analysis was found to be 20.81 nm. XRD analysis was used to study the nature of the silver nanoparticle. From the above studies it can be concluded that, waste frying oils can be profitably used to synthesize biosurfactants, which are required in bulk quantities for various medicinal, industrial and environmental applications.

References p. 174-199, List of publications p. 200-201

Advisors/Committee Members: Vedaraman N.

Subjects/Keywords: Biosurfactants; Sophorolipids; Surfactin; Rhamnolipids; XRD analysis

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APA (6^th Edition):

N, V. (2013). Studies on synthesis of biosurfactants and their applications. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/9983

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):

N, Venkatesh. “Studies on synthesis of biosurfactants and their applications.” 2013. Thesis, Anna University. Accessed February 22, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/9983.

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

MLA Handbook (7^th Edition):

N, Venkatesh. “Studies on synthesis of biosurfactants and their applications.” 2013. Web. 22 Feb 2020.

Vancouver:

N V. Studies on synthesis of biosurfactants and their applications. [Internet] [Thesis]. Anna University; 2013. [cited 2020 Feb 22]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/9983.

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

Council of Science Editors:

N V. Studies on synthesis of biosurfactants and their applications. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/9983

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

16. Meitei, S Dhiren. Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -.

Degree: Physics, 2011, Manipur University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/26604

Available

Appendix p.95

Advisors/Committee Members: Singh, Sh Dorendtrajit.

Subjects/Keywords: XRD; Photoluminescence; Synthesis

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APA (6^th Edition):

Meitei, S. D. (2011). Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -. (Thesis). Manipur University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/26604

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):

Meitei, S Dhiren. “Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -.” 2011. Thesis, Manipur University. Accessed February 22, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/26604.

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

MLA Handbook (7^th Edition):

Meitei, S Dhiren. “Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -.” 2011. Web. 22 Feb 2020.

Vancouver:

Meitei SD. Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -. [Internet] [Thesis]. Manipur University; 2011. [cited 2020 Feb 22]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26604.

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

Council of Science Editors:

Meitei SD. Synthesis,characterization and photoluminescence of zro2: eu3 nanocrystals; -. [Thesis]. Manipur University; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26604

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

NSYSU

17. Zhou , Jing-Wei. Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices.

Degree: Master, Physics, 2015, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713115-100614

► RF magnetron sputtering has been used to deposit thin films of TiO2/HfO2 superlattices in alternating sequence on c-oriented sapphire substrates using titanium, or titanium dioxide,… (more)

Subjects/Keywords: Dielectric Constant; XRD; TEM; HfO2; Superlattice; TiO2

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APA (6^th Edition):

Zhou , J. (2015). Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713115-100614

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):

Zhou , Jing-Wei. “Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices.” 2015. Thesis, NSYSU. Accessed February 22, 2020. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713115-100614.

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

MLA Handbook (7^th Edition):

Zhou , Jing-Wei. “Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices.” 2015. Web. 22 Feb 2020.

Vancouver:

Zhou J. Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices. [Internet] [Thesis]. NSYSU; 2015. [cited 2020 Feb 22]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713115-100614.

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

Council of Science Editors:

Zhou J. Structures and dielectrics of sputtered epitaxial TiO2/HfO2 superlattices. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713115-100614

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

Penn State University

18. Ling, Florence T. Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites.

Degree: PhD, Geoscience, 2016, Penn State University

URL: https://etda.libraries.psu.edu/catalog/13154ftl102

► Manganese (Mn) oxides have long been challenging to study using conventional materials characterization techniques due to their small particle size, poor crystallinity and variable structure… (more)

▼ Manganese (Mn) oxides have long been challenging to study using conventional materials characterization techniques due to their small particle size, poor crystallinity and variable structure at the nanoscale. The phyllomanganates within the birnessite family, for example, exhibit a diversity of Mn oxidation states, interlayer cations, water contents, and octahedral vacancy concentrations. These differences lead to subtle structural modifications that control the redox and cation exchange capacities of birnessite phases in soils, and they determine the usefulness of birnessites for environmental applications, such as the remediation of contaminant metals. Although powder X-ray diffraction (XRD) can offer deep insights into birnessite crystallography, spectroscopic techniques provide complementary information when structural disorder is high. This study introduces Fourier-transform infrared spectroscopy (FTIR) as a method for analyzing birnessite varieties, coupling our analyses with synchrotron X-ray diffraction and absorption spectroscopy for comparison. We found that FTIR can readily differentiate synthetic triclinic Na-birnessite and hexagonal H-birnessite. The region from 400 to 750 cm-1, which is most sensitive to Mn-O bond vibrations, displays the most prominent distinctions between the two varieties, with peaks at ~418, ~478, and ~511 cm-1 in synthetic triclinic Na-birnessite, and peaks at ~440 and ~494 cm-1 in hexagonal H-birnessite. Spectral unmixing of known mixtures of triclinic and hexagonal birnessite yielded errors comparable to results from linear combination fitting (LCF) of extended X-ray absorption fine-structure (EXAFS) data. Spectral unmixing of synthetic cation-exchanged birnessites, including K-birnessite, Ba-birnessite, Ca-birnessite, and two hexagonal birnessite samples prepared in pH 3 and HEPES-buffered pH 7 solutions, also yielded fractions of triclinic and hexagonal birnessite comparable to those calculated by LCF of EXAFS data. Our EXAFS, FTIR, and Rietveld refinements of XRD data all confirmed that as Mn3+ content increases, the triclinic character of the birnessite also increases, as manifested by an increase in the β angle and in the length of the a-axis of the unit cell. With these synthetic samples providing a baseline for comparison, natural birnessite samples next were interrogated using the same suite of techniques. Contrary to the common assumption that most natural birnessites are hexagonal, our FTIR and EXAFS investigations revealed natural birnessite varieties as either triclinic or hexagonal or, most commonly, a mixture of the two. Further, this work demonstrates that the use of biological buffers such as HEPES and MES can promote the transformation of synthetic triclinic Na-birnessite into hexagonal H-birnessite, perhaps accounting for the presumption of hexagonal symmetry in natural biogenic samples. When our EXAFS and FTIR analyses were combined with X-ray photoelectron spectroscopy (XPS) data in an allied study (Ilton et al. 2016), a relation between Mn3+ content in…

Subjects/Keywords: birnessite; manganese oxide; FTIR; EXAFS; XRD; lead

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APA (6^th Edition):

Ling, F. T. (2016). Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites. (Doctoral Dissertation). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/13154ftl102

Chicago Manual of Style (16^th Edition):

Ling, Florence T. “Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites.” 2016. Doctoral Dissertation, Penn State University. Accessed February 22, 2020. https://etda.libraries.psu.edu/catalog/13154ftl102.

MLA Handbook (7^th Edition):

Ling, Florence T. “Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites.” 2016. Web. 22 Feb 2020.

Vancouver:

Ling FT. Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites. [Internet] [Doctoral dissertation]. Penn State University; 2016. [cited 2020 Feb 22]. Available from: https://etda.libraries.psu.edu/catalog/13154ftl102.

Council of Science Editors:

Ling FT. Mineralogical and Geochemical Analyses of Synthetic and Natural Birnessites. [Doctoral Dissertation]. Penn State University; 2016. Available from: https://etda.libraries.psu.edu/catalog/13154ftl102

Queensland University of Technology

19. Onions, Katrina Leigh. Characterisation of soils with the use of instrumental techniques : a multivariate forensic study.

Degree: 2009, Queensland University of Technology

URL: https://eprints.qut.edu.au/30420/

► The value of soil evidence in the forensic discipline is well known. However, it would be advantageous if an in-situ method was available that could… (more)

▼ The value of soil evidence in the forensic discipline is well known. However, it would be advantageous if an in-situ method was available that could record responses from tyre or shoe impressions in ground soil at the crime scene. The development of optical fibres and emerging portable NIR instruments has unveiled a potential methodology which could permit such a proposal. The NIR spectral region contains rich chemical information in the form of overtone and combination bands of the fundamental infrared absorptions and low-energy electronic transitions. This region has in the past, been perceived as being too complex for interpretation and consequently was scarcely utilized. The application of NIR in the forensic discipline is virtually non-existent creating a vacancy for research in this area. NIR spectroscopy has great potential in the forensic discipline as it is simple, nondestructive and capable of rapidly providing information relating to chemical composition. The objective of this study is to investigate the ability of NIR spectroscopy combined with Chemometrics to discriminate between individual soils. A further objective is to apply the NIR process to a simulated forensic scenario where soil transfer occurs. NIR spectra were recorded from twenty-seven soils sampled from the Logan region in South-East Queensland, Australia. A series of three high quartz soils were mixed with three different kaolinites in varying ratios and NIR spectra collected. Spectra were also collected from six soils as the temperature of the soils was ramped from room temperature up to 6000C. Finally, a forensic scenario was simulated where the transferral of ground soil to shoe soles was investigated. Chemometrics methods such as the commonly known Principal Component Analysis (PCA), the less well known fuzzy clustering (FC) and ranking by means of multicriteria decision making (MCDM) methodology were employed to interpret the spectral results. All soils were characterised using Inductively Coupled Plasma Optical Emission Spectroscopy and X-Ray Diffractometry. Results were promising revealing NIR combined with Chemometrics is capable of discriminating between the various soils. Peak assignments were established by comparing the spectra of known minerals with the spectra collected from the soil samples. The temperature dependent NIR analysis confirmed the assignments of the absorptions due to adsorbed and molecular bound water. The relative intensities of the identified NIR absorptions reflected the quantitative XRD and ICP characterisation results. PCA and FC analysis of the raw soils in the initial NIR investigation revealed that the soils were primarily distinguished on the basis of their relative quartz and kaolinte contents, and to a lesser extent on the horizon from which they originated. Furthermore, PCA could distinguish between the three kaolinites used in the study, suggesting that the NIR spectral region was sensitive enough to contain information describing variation within kaolinite itself. The forensic…

Subjects/Keywords: soil; NIR; XRD; ICP; forensics; chemometrics; MCDM

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APA (6^th Edition):

Onions, K. L. (2009). Characterisation of soils with the use of instrumental techniques : a multivariate forensic study. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/30420/

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):

Onions, Katrina Leigh. “Characterisation of soils with the use of instrumental techniques : a multivariate forensic study.” 2009. Thesis, Queensland University of Technology. Accessed February 22, 2020. https://eprints.qut.edu.au/30420/.

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

MLA Handbook (7^th Edition):

Onions, Katrina Leigh. “Characterisation of soils with the use of instrumental techniques : a multivariate forensic study.” 2009. Web. 22 Feb 2020.

Vancouver:

Onions KL. Characterisation of soils with the use of instrumental techniques : a multivariate forensic study. [Internet] [Thesis]. Queensland University of Technology; 2009. [cited 2020 Feb 22]. Available from: https://eprints.qut.edu.au/30420/.

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

Council of Science Editors:

Onions KL. Characterisation of soils with the use of instrumental techniques : a multivariate forensic study. [Thesis]. Queensland University of Technology; 2009. Available from: https://eprints.qut.edu.au/30420/

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

University of Manchester

20. Khalf, Abdulkarim. Lead-free ferroelectric glass-ceramics and composites.

Degree: PhD, 2018, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.740402

► Glass-ceramic composites and nanocrystalline glass-ceramics containing barium titanate (BT) or potassium sodium niobate (KNN) ferroelectric phases have been studied, with particular regard to their use… (more)

▼ Glass-ceramic composites and nanocrystalline glass-ceramics containing barium titanate (BT) or potassium sodium niobate (KNN) ferroelectric phases have been studied, with particular regard to their use as dielectric energy storage materials. Barium borosilicate glass (BBS) was used as a sintering aid for BT and KNN, producing glass-ceramic composites. The temperatures required to achieve densification were reduced from 1400 to 1200 Â°C for BCZT (Ca, Zr-doped BT) and 1170 to 1050 Â°C for KBN (Bi, Na, K, Zr-doped KNN) by the use of glass additives. An unexpected observation, found in both BCZT and KBN systems, was the heterogeneous dissolution of dopant elements into the glass, inducing additional anomalies in the relative permittivity-temperature relationships. For BCZT, the orthorhombic-tetragonal phase transformation temperature shifted upwards to â 50 Â°C, which was attributed to modification of the Ca/Zr ratio by preferential dissolution of Ca into the glass phase. Similarly, for KBN the dopant elements appeared to be leached into the liquid phase during sintering, resulting in relative permittivity-temperature characteristics similar to those of pure KNN. A modified BBS glass having various KNN contents was prepared by the conventional melt-quenching method and then heat-treated to induce crystallisation, producing nanocrystalline glass-ceramics. It is shown that crystallisation of an intermediate barium niobate phase initiates at temperatures in the region of 650 Â°C; this is subsequently converted into perovskite KNN together with a second phase of Ba3Nb5O15 at temperatures from 700 to 800 Â°C. The final crystallite size was in the region of 30Â±7 nm. The highest dielectric energy storage density of 0.134(4) J cm-3 was obtained for a glass-modified BT ceramic at an electric field level of 5 kV mm-1. However, the energy storage efficiency of the BT-based ceramics was relatively poor and they displayed a general tendency for saturation, indicating potentially poor performance at higher field levels. On the other hand, the KNN-based ceramics exhibited slightly lower energy storage density values, up to 0.108(1) J cm-3, but with much improved linearity and energy storage efficiency. Therefore, the latter is considered to be more suitable as energy storage dielectrics. The BBS-KNN glass-ceramics yielded relatively low energy storage density, 0.035(2) J cm-3, but the dielectric linearity and storage efficiency were similar to or better than those of the KNN ceramics, indicating good potential for use as energy storage dielectrics at very high electric field levels as a result of their nanocrystalline microstructures.

Subjects/Keywords: 620; Lead free; glass-ceramics; XRD diffraction

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APA (6^th Edition):

Khalf, A. (2018). Lead-free ferroelectric glass-ceramics and composites. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.740402

Chicago Manual of Style (16^th Edition):

Khalf, Abdulkarim. “Lead-free ferroelectric glass-ceramics and composites.” 2018. Doctoral Dissertation, University of Manchester. Accessed February 22, 2020. https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.740402.

MLA Handbook (7^th Edition):

Khalf, Abdulkarim. “Lead-free ferroelectric glass-ceramics and composites.” 2018. Web. 22 Feb 2020.

Vancouver:

Khalf A. Lead-free ferroelectric glass-ceramics and composites. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2020 Feb 22]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.740402.

Council of Science Editors:

Khalf A. Lead-free ferroelectric glass-ceramics and composites. [Doctoral Dissertation]. University of Manchester; 2018. Available from: https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.740402

University of Waikato

21. Thabarealam, Tharikalam. Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method.

Degree: 2009, University of Waikato

URL: http://hdl.handle.net/10289/3263

► In the 21st century metals and alloys are considered to be the base for all manufacturing and engineering applications. Titanium and its alloys are examples… (more)

Subjects/Keywords: Porous titanium alloys; Powder metallurgy; XRD; Sintering

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APA (6^th Edition):

Thabarealam, T. (2009). Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method. (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/3263

Chicago Manual of Style (16^th Edition):

Thabarealam, Tharikalam. “Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method. ” 2009. Masters Thesis, University of Waikato. Accessed February 22, 2020. http://hdl.handle.net/10289/3263.

MLA Handbook (7^th Edition):

Thabarealam, Tharikalam. “Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method. ” 2009. Web. 22 Feb 2020.

Vancouver:

Thabarealam T. Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method. [Internet] [Masters thesis]. University of Waikato; 2009. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10289/3263.

Council of Science Editors:

Thabarealam T. Production, Processing and Characterisation of Porous TiAl Alloy Produced Using Space Holder Method. [Masters Thesis]. University of Waikato; 2009. Available from: http://hdl.handle.net/10289/3263

University of Waterloo

22. Wang, Xueren. InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation.

Degree: 2016, University of Waterloo

URL: http://hdl.handle.net/10012/10677

► In the past two decades, mid-infrared (MIR) quantum cascade laser (QCL) research has been rapidly developed and has resulted in an enabling platform for the… (more)

Subjects/Keywords: InAs/AlSb; Mid-infrared QCL; XRD

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APA (6^th Edition):

Wang, X. (2016). InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10677

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):

Wang, Xueren. “InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation.” 2016. Thesis, University of Waterloo. Accessed February 22, 2020. http://hdl.handle.net/10012/10677.

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

MLA Handbook (7^th Edition):

Wang, Xueren. “InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation.” 2016. Web. 22 Feb 2020.

Vancouver:

Wang X. InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10012/10677.

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

Council of Science Editors:

Wang X. InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/10677

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

Princeton University

23. Davies, Gregory. Characterization of batteries using ultrasound: applications for battery management and structural determination .

Degree: PhD, 2018, Princeton University

URL: http://arks.princeton.edu/ark:/88435/dsp01cn69m683b

► Ultrasound has been an invaluable and widely used tool in the medical and non-destructive testing (NDT) sectors. Much of its success is attributable to its… (more)

▼ Ultrasound has been an invaluable and widely used tool in the medical and non-destructive testing (NDT) sectors. Much of its success is attributable to its low-cost, compact size, the speed and ease of its application, and the useful qualitative information that it provides. However, until recently the technique has not been applied to dynamic and changing material systems. This dissertation explores the application of ultrasonic techniques to characterize batteries - systems that undergo both electrochemical and mechanical changes during the course of their lifetime (charging, discharging, aging). Two battery specific applications are surveyed: (i) the application of ultrasound for accurate predictions of state of charge (SOC) and state of health (SOH), as a method for augmenting traditional battery management systems; and (ii) the application of ultrasound for tomographic imaging. In addition, two more fundamental studies are presented: (i) a computational investigation of the coupled electrochemical-mechanical changes and structural properties of a cycling battery that give rise to the measured, changing ultrasonic signals; and (ii) an in-operando cycling/ultrasound/energy-dispersive x-ray diffraction (EDXRD) study of a battery, investigating the relationships between its internal material structures and its ultrasonic characterization. More specifically, in Chapter 2 ultrasonic measurements were combined with a supervised machine-learning technique, which was used to predict the SOC and SOH of lithium-ion cells that had been operated for several hundred cycles. Excellent results were demonstrated, with the technique showing an accuracy of ~1% for both SOC and SOH prediction. In Chapter 3, to explain the measurable and repeatable ultrasonic signal changes during cycling, a model of ultrasonic propagation through a finely layered lithium-ion battery structure was developed. The model demonstrated that graphite is the primary determinant of the ultrasonic response of a cycling battery, and that finely layered structures can significantly impact wave propagation. Next, in Chapter 4, the combination of ultrasonic measurements with full-waveform inversion techniques originating from geophysics was investigated, demonstrating that using ultrasound for structure and property reconstruction may be feasible. Finally, Chapter 5 presents the in-situ ultrasound/EDXRD experiment, linking specific material properties with previously unexplained behaviors in the ultrasonic signals. Advisors/Committee Members: Steingart, Daniel (advisor).

Subjects/Keywords: Batteries; Inversions; SOC; SOH; Ultrasound; XRD

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APA (6^th Edition):

Davies, G. (2018). Characterization of batteries using ultrasound: applications for battery management and structural determination . (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp01cn69m683b

Chicago Manual of Style (16^th Edition):

Davies, Gregory. “Characterization of batteries using ultrasound: applications for battery management and structural determination .” 2018. Doctoral Dissertation, Princeton University. Accessed February 22, 2020. http://arks.princeton.edu/ark:/88435/dsp01cn69m683b.

MLA Handbook (7^th Edition):

Davies, Gregory. “Characterization of batteries using ultrasound: applications for battery management and structural determination .” 2018. Web. 22 Feb 2020.

Vancouver:

Davies G. Characterization of batteries using ultrasound: applications for battery management and structural determination . [Internet] [Doctoral dissertation]. Princeton University; 2018. [cited 2020 Feb 22]. Available from: http://arks.princeton.edu/ark:/88435/dsp01cn69m683b.

Council of Science Editors:

Davies G. Characterization of batteries using ultrasound: applications for battery management and structural determination . [Doctoral Dissertation]. Princeton University; 2018. Available from: http://arks.princeton.edu/ark:/88435/dsp01cn69m683b

University of Cambridge

24. Booker, Edward Peter. Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors.

Degree: PhD, 2019, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/287528 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.763844

► This thesis investigates some of the physics of semiconducting low-dimensional structures at low temperatures, as well as investigating the effects of defects on low-dimensional structures… (more)

▼ This thesis investigates some of the physics of semiconducting low-dimensional structures at low temperatures, as well as investigating the effects of defects on low-dimensional structures and magnetic fields on charge recombination in organic photovoltaics (OPVs). The applications of the systems studied vary from photodetectors, to LEDs, lasers and solar cells. We synthesised Cs2CuCl4 and CsCuCl3 nanoparticles. By varying the ratio of coordination solvents in the synthesis we can control the composition and morphologies of the fabricated nanoparticles, including dots, rods and wires. These nanocrystals showed broadband green emission upon excitation with sub-300 nm radiation, which we showed was due to emission from an intra-band Cu(II) defect. We also fabricated a variety of alkylammonium lead iodide materials. We found that hexylammonium lead iodide and dodecylammonium lead iodide emit broadband red light at low temperatures due to a Frenkel defect (f-centre). Additionally, we see evidence of biexciton emission in dodecylammonium lead iodide films at high excitation densities below temperatures of 225 K. The films in this study were seen to adopt two coexistent phases of dodecylammonium lead iodide, both a monoclinic P121/a structure and an orthorhombic Pbca structure, at room temperature. These films were used as the gain medium in a biexciton vertical cavity laser. This device was constructed from a distributed Bragg reflector coated with dodecylammonium lead iodide, a poly(methylmethacrylate) spacer layer, and an evaporated silver mirror. The onset of lasing was seen at 5.6 × 1018 excitations/cm3 at 75 K. Finally, the modulation of open-circuit voltage and short-circuit current by applied magnetic field in OPV devices made from PIDTPhanQ and PC(71)BM was investigated. We saw that magnetic fields influenced the recombination of charge-transfer (CT) states, and simulations indicated that the formation of CT states had a significant contribution from the bimolecular recombination of free charges. The simulations also showed that singlet CT state lifetimes were much smaller than triplet CT state lifetimes.

Subjects/Keywords: Perovskite; Laser; Colour Centre; Nanoparticle; XRD

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APA (6^th Edition):

Booker, E. P. (2019). Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/287528 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.763844

Chicago Manual of Style (16^th Edition):

Booker, Edward Peter. “Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors.” 2019. Doctoral Dissertation, University of Cambridge. Accessed February 22, 2020. https://www.repository.cam.ac.uk/handle/1810/287528 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.763844.

MLA Handbook (7^th Edition):

Booker, Edward Peter. “Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors.” 2019. Web. 22 Feb 2020.

Vancouver:

Booker EP. Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2020 Feb 22]. Available from: https://www.repository.cam.ac.uk/handle/1810/287528 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.763844.

Council of Science Editors:

Booker EP. Effects of low temperature and structure on the photophysics of alkylammonium lead halide semiconductors. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/287528 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.763844

Vilnius University

25. Krapukaitytė, Aušra. Investigation and description of modern and archeological ceramics.

Degree: PhD, Chemistry, 2009, Vilnius University

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154440-91021 ;

►

The elemental composition of the samples of modern and archaeological ceramics was determined using the energy dispersive X-ray analysis, flame atomic absorption spectrometry, titrimetric and… (more)

▼

The elemental composition of the samples of modern and archaeological ceramics was determined using the energy dispersive X-ray analysis, flame atomic absorption spectrometry, titrimetric and spectrophotometric analysis methods. It has been shown that the qualitative and quantitative composition of all the samples is different. It has been established that silicon and aluminium are the main elements in all the samples. SiO2 accounts for 46–60 % of the composition of the ceramics, Al2O3 – for some 17–33%. The amounts of Fe, Na, Mg, K, Ca and Ti discovered in the samples are several times lesser. EDX analysis can successfully be used in determining the main elements whose amounts exceed 0.5% of the overall elemental composition. In order to determine the exact composition of ceramics one has to employ the FAAS analysis method. To determine in a credible manner the amount of aluminium in ceramics, one can use the titrimetric method, and the amount of silicon and titanium – spectrophotometric methods. Upon examination of the modern and archaeological ceramics by diffraction analysis it has been established that the main phase of all the samples is the same – quartz SiO2, however their phase composition varies. In different samples the following phases have been discovered: calcite, dolomite, kaolinite, albite, microcline, muscovite, mullite, hematite, rutile, diopside, corundum, titanite, and sodium anorthite. Being aware of the phase composition, it has been established that the... [to full text]

Šioje daktaro disertacijoje pirmoje dalyje nustatyta šiuolaikinės, o antroje dalyje – archeologinės keramikos gaminių elementinė ir fazinė sudėtis, bei ištirta morfologija. Šiuolaikinės ir archeologinės keramikos pavyzdžių elementinė sudėtis nustatyta Rentgeno spindulių dispersinės analizės (EDX), liepsnos atominės absorbcinės spektrometrijos (LAAS), titrimetrinės ir spektrofotometrinės analizės metodais. Parodyta, kad visų keraminių pavyzdžių kokybinė bei kiekybinė sudėtis yra skirtinga Nustatyta, kad visuose keramikos mėginiuose pagrindiniai elementai yra silicis ir aliuminis. SiO2 sudaro 46 – 60% keramikos sudėties, Al2O3 – apie 17 – 33%. Fe, Na, Mg, K, Ca ir Ti mėginiuose rasta kelis kartus mažiau. EDX analizė gali būti sėkmingai naudojama nustatant pagrindinius elementus, kurių kiekiai viršija 0,5 % bendros elementinės sudėties. Norint nustatyti tikslią keramikos sudėtį ir pėdsakinius elementus reikia naudoti LAAS analizės metodą. Aliuminio kiekį keramikoje patikimai galima nustatyti titrimetriniu, o silicio ir titano kiekį – spektrofotometriniais metodais. Ištyrus šiuolaikę ir archeologinę keramiką Rentgeno spindulių difrakcine analize (XRD), nustatyta, kad visų keramikų pagrindinė fazė yra vienoda – silicio dioksidas SiO2, tačiau jų bendra fazinė sudėtis skiriasi. Skirtinguose kermikos pavyzdžiuose buvo aptikos šios fazės: kvarcas, dolomitas, kaolinas, albitas, mikroklinas, muskovitas, mulitas, hematitas, rutilas, diopsidas, korundas, titanitas, natrio anortitas.... [toliau žr. visą tekstą]

Advisors/Committee Members: Padarauskas, Audrius (Doctoral dissertation committee chair), Barkauskas, Jurgis (Doctoral dissertation committee member), Ramanauskas, Rimantas (Doctoral dissertation committee member), Jurkonienė, Sigita (Doctoral dissertation committee member), Lukšienė, Benedikta (Doctoral dissertation committee member), Vičkačkaitė, Vida (Doctoral dissertation opponent), Naujalis, Evaldas (Doctoral dissertation opponent), Tautkus, Stasys (Doctoral dissertation advisor).

Subjects/Keywords: Ceramics; XRD; SEM; IR; Thermal analysis; Keramika; XRD; SEM; IR; Terminė analizė

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APA (6^th Edition):

Krapukaitytė, A. (2009). Investigation and description of modern and archeological ceramics. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154440-91021 ;

Chicago Manual of Style (16^th Edition):

Krapukaitytė, Aušra. “Investigation and description of modern and archeological ceramics.” 2009. Doctoral Dissertation, Vilnius University. Accessed February 22, 2020. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154440-91021 ;.

MLA Handbook (7^th Edition):

Krapukaitytė, Aušra. “Investigation and description of modern and archeological ceramics.” 2009. Web. 22 Feb 2020.

Vancouver:

Krapukaitytė A. Investigation and description of modern and archeological ceramics. [Internet] [Doctoral dissertation]. Vilnius University; 2009. [cited 2020 Feb 22]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154440-91021 ;.

Council of Science Editors:

Krapukaitytė A. Investigation and description of modern and archeological ceramics. [Doctoral Dissertation]. Vilnius University; 2009. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20090707_154440-91021 ;

Brigham Young University

26. Hancock, Jared M. Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles.

Degree: PhD, 2013, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4866&context=etd

► In this dissertation, methods to synthesize ZnO are reported. First, zinc oxide nanoparticles were synthesized with small amounts of transition metal ions to create materials… (more)

▼ In this dissertation, methods to synthesize ZnO are reported. First, zinc oxide nanoparticles were synthesized with small amounts of transition metal ions to create materials called dilute magnetic semiconductors (DMS). We employed a low temperature sol-gel method that produces ZnO nanoparticles of reproducible size and incorporates cobalt, nickel, and manganese ions into the nanoparticles. Conditions were controlled such that a range of amounts of Co, Ni, and Mn were incorporated. The incorporation was tracked by color changes in the white ZnO powder to blue for Co, green for Ni and yellow for Mn. XRD measurements showed the nanoparticles were on the order of 10 nm in diameter and had a wurtzite structure. Magnetic measurements showed a change from diamagnetic to paramagnetic behavior with increasing concentration of metal dopants. Second, formation of ZnO single crystal hexagonal prisms from a sol-gel method is presented. The method required water, zinc acetate, and ethanolamine to create a gel of zinc hydroxide and zinc hydroxide acetate, which upon heating formed single crystal hexagonal prisms. Characterization of the gel was done by XRD as well as XRD high temperature chamber (HTK) to determine the role of temperature in prism formation. SEM images showed hexagonal prisms were of uniform size (0.5 × 2 µm.) TEM and electron diffraction images showed a change from randomly oriented particles to an ordered single crystal after heating. Water and the acetate salt of zinc proved to be critical to prism formation. Lastly, we report absorption and fluorescence properties of synthesized oligothiophenes and oligothiophene-ruthenium complexes that are bound to CdSe nanoparticles. Their ability to act as sensitizers and charge transfer junctions was tested. It was found that fluorescence of CdSe nanoparticles was quenched when they were bound to the oligothiophenes, and that the fluorescence of the oligothiophenes was also quenched. The fluorescence lifetimes of the quenched species were shortened.

Subjects/Keywords: ZnO; nanoparticles; hexagonal prims; sol-gel; SEM; TEM; XRD; XRD-HTK; VSM; CdSe; Biochemistry; Chemistry

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APA (6^th Edition):

Hancock, J. M. (2013). Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles. (Doctoral Dissertation). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4866&context=etd

Chicago Manual of Style (16^th Edition):

Hancock, Jared M. “Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles.” 2013. Doctoral Dissertation, Brigham Young University. Accessed February 22, 2020. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4866&context=etd.

MLA Handbook (7^th Edition):

Hancock, Jared M. “Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles.” 2013. Web. 22 Feb 2020.

Vancouver:

Hancock JM. Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles. [Internet] [Doctoral dissertation]. Brigham Young University; 2013. [cited 2020 Feb 22]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4866&context=etd.

Council of Science Editors:

Hancock JM. Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles. [Doctoral Dissertation]. Brigham Young University; 2013. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4866&context=etd

Brno University of Technology

27. Kaválek, Ondřej. Elektrochemická depozice křemíku z organických sloučenin .

Degree: 2010, Brno University of Technology

URL: http://hdl.handle.net/11012/18218

► Diplomová práce se zaobírá elektrodepozicí křemíku z bezvodných roztoků. Pro elektrolyt bylo v práci použito EC:DMC (1:1) s (C2H5)4NBF4, LiPF6 a LiClO4. Na vzorcích je… (more)

Subjects/Keywords: Křemík; elektrodepozice; cyklická voltametrie; XRD difrakční analýza; rukavicový box; Silicon; Electrodeposition; Cyclic Voltammetry; XRD; Atmosbag

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APA (6^th Edition):

Kaválek, O. (2010). Elektrochemická depozice křemíku z organických sloučenin . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/18218

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):

Kaválek, Ondřej. “Elektrochemická depozice křemíku z organických sloučenin .” 2010. Thesis, Brno University of Technology. Accessed February 22, 2020. http://hdl.handle.net/11012/18218.

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

MLA Handbook (7^th Edition):

Kaválek, Ondřej. “Elektrochemická depozice křemíku z organických sloučenin .” 2010. Web. 22 Feb 2020.

Vancouver:

Kaválek O. Elektrochemická depozice křemíku z organických sloučenin . [Internet] [Thesis]. Brno University of Technology; 2010. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/11012/18218.

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

Council of Science Editors:

Kaválek O. Elektrochemická depozice křemíku z organických sloučenin . [Thesis]. Brno University of Technology; 2010. Available from: http://hdl.handle.net/11012/18218

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

Brno University of Technology

28. Smejkal, Jan. Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie .

Degree: 2017, Brno University of Technology

URL: http://hdl.handle.net/11012/68279

► Bakalářská práce pojednává o účincích vybraných organických aditiv na vlastnosti zinkového depozitu ve vztahu k záporné elektrodě Ni – Zn akumulátoru. Všechna aditiva byla zkoumána… (more)

Subjects/Keywords: Ni – Zn; depozice; morfologie; XRD; Rigaku; Ni – Zn; deposition; morphology; XRD; Rigaku

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APA (6^th Edition):

Smejkal, J. (2017). Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/68279

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):

Smejkal, Jan. “Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie .” 2017. Thesis, Brno University of Technology. Accessed February 22, 2020. http://hdl.handle.net/11012/68279.

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

MLA Handbook (7^th Edition):

Smejkal, Jan. “Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie .” 2017. Web. 22 Feb 2020.

Vancouver:

Smejkal J. Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie . [Internet] [Thesis]. Brno University of Technology; 2017. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/11012/68279.

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

Council of Science Editors:

Smejkal J. Studium vlivu organických aditiv na deposici zinku z alkalického elektrolytu s využitím rentgenové difraktometrie . [Thesis]. Brno University of Technology; 2017. Available from: http://hdl.handle.net/11012/68279

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

Brno University of Technology

29. Duda, Štěpán. Studium budičů anhydritových maltovin .

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/70370

► Předkládaná diplomová práce se zabývá studiem budičů anhydritových maltovin. Teoretická část je věnována rešerši dostupné tuzemské a zahraniční literatury na dané téma. Pozornost je také… (more)

Subjects/Keywords: Anhydrit; budič hydratace; XRD analýza; termická analýza; Anhydrite; hydration exciter; XRD analysis; termal analysis

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APA (6^th Edition):

Duda, �. (2018). Studium budičů anhydritových maltovin . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/70370

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):

Duda, Štěpán. “Studium budičů anhydritových maltovin .” 2018. Thesis, Brno University of Technology. Accessed February 22, 2020. http://hdl.handle.net/11012/70370.

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

MLA Handbook (7^th Edition):

Duda, Štěpán. “Studium budičů anhydritových maltovin .” 2018. Web. 22 Feb 2020.

Vancouver:

Duda �. Studium budičů anhydritových maltovin . [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/11012/70370.

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

Council of Science Editors:

Duda �. Studium budičů anhydritových maltovin . [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/70370

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

30. Toyota, Rosimeiri Galbiati. Caracterização química da cerâmica marajoara.

Degree: Mestrado, Tecnologia Nuclear - Aplicações, 2009, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/85/85131/tde-09092009-174353/ ;

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Neste trabalho foram determinadas as concentrações elementares de Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Na, Nd, Rb, Sc, Sm, Ta, Tb,… (more)

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Neste trabalho foram determinadas as concentrações elementares de Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Na, Nd, Rb, Sc, Sm, Ta, Tb, Th, U, Yb e Zn por meio da análise por ativação com nêutrons instrumental (INAA) em 204 fragmentos cerâmicos arqueológicos Marajoara, dos quais, 156 foram cedidos pelo Museu de Arqueologia e Etnologia da USP (MAE) e 48 cedidos pela Profª Denise Pahl Schaan, curadora do Museu do Marajó, além de 9 cerâmicas contemporâneas produzidas e comercializadas na Ilha do Marajó. Realizaram-se análises por espectroscopia de ressonância paramagnétca eletrônica (EPR) em 8 amostras arqueológicas e 1 amostra contemporânea para identificar a temperatura de queima e análises de difratometria de raio-X (XRD) em 13 amostras arqueológicas e 2 amostras contemporâneas para o estudo da composição mineralógica. O estudo das amostras discrepantes foi realizado por meio da distância Mahalanobis e o efeito do tempero adicionado à pasta cerâmica por meio do filtro modificado Mahalanobis. Os resultados foram interpretados utilizando-se a análise de conglomerados, análise de componentes principais e análise discriminante. A análise Procrustes, utilizada para o estudo de seleção de variáveis, mostrou que as variáveis Ce, Fe, Eu, Hf, K e Th são suficientes para caracterizar as amostras analisadas. O estudo comparativo entre as amostras arqueológicas e contemporâneas apresentou a formação de dois grupos bem definidos e próximos para as cerâmicas arqueológicas, e a formação de um terceiro grupo distante para as amostras contemporâneas, indicando que as amostras arqueológicas são bem diferentes das amostras contemporâneas. Tanto as análises de EPR, quanto de XRD, não apresentaram fatores relevantes para a diferenciação entre as amostras arqueológicas e contemporâneas.

In this study the elemental concentration of Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Na, Nd, Rb, Sc, Sm, Ta, Tb, Th, U, Yb and Zn were determined by instrumental neutron activation analysis (INAA) in 204 fragments of Marajoara archeological ceramics, of which 156 were provided by the Archeology and Etnology Museum of São Paulo University (MAE) and 48 were provided by Dr. Denise Pahl Schaan, Marajó Museum curator. Also, 9 contemporary ceramics produced and marketed at Marajó Island were analyzed. Electron paramagnetic resonance (EPR) analyses were performed in 8 archeological samples and 1 contemporary sample in order to identify the burning temperature of the samples. X-ray diffraction (XRD) analyses were performed in 13 archeological samples and 2 contemporary samples for the investigation of their mineralogical composition. Mahalanobis distance was used for the study of outlier while modified filter was used for the study of the temper added to the ceramic paste. Result interpretation was performed using cluster analysis, principal components analysis and discriminant analysis. Procrustes analysis was used for variable selection and it showed that the Ce, Fe, Eu, Hf, K and Th variables are adequate for the characterization of the analyzed samples. The…

Advisors/Committee Members: Munita, Casimiro Jayme Alfredo Sepulveda.

Subjects/Keywords: Análise multivariada; Análise Multivariada; Arqueometria; Arqueometria; Cerâmica; Cerâmica; EPR; EPR; INAA; INAA; Marajoara; Marajoara; NAA; NAA; XRD; XRD

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APA (6^th Edition):

Toyota, R. G. (2009). Caracterização química da cerâmica marajoara. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/85/85131/tde-09092009-174353/ ;

Chicago Manual of Style (16^th Edition):

Toyota, Rosimeiri Galbiati. “Caracterização química da cerâmica marajoara.” 2009. Masters Thesis, University of São Paulo. Accessed February 22, 2020. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-09092009-174353/ ;.

MLA Handbook (7^th Edition):

Toyota, Rosimeiri Galbiati. “Caracterização química da cerâmica marajoara.” 2009. Web. 22 Feb 2020.

Vancouver:

Toyota RG. Caracterização química da cerâmica marajoara. [Internet] [Masters thesis]. University of São Paulo; 2009. [cited 2020 Feb 22]. Available from: http://www.teses.usp.br/teses/disponiveis/85/85131/tde-09092009-174353/ ;.

Council of Science Editors:

Toyota RG. Caracterização química da cerâmica marajoara. [Masters Thesis]. University of São Paulo; 2009. Available from: http://www.teses.usp.br/teses/disponiveis/85/85131/tde-09092009-174353/ ;

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