subject:(agglomerate)

1. Gensch, Manuel. Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen.

Degree: 2018, Technische Universität Dortmund

URL: https://doi.org/10.21268/20181114-093048 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181114-094332-3 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000676 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000444/Db113826.pdf

► Die Dispergierung von Nanopartikel-Agglomeraten in der Gasphase bietet gegenüber der Dispergierung in Flüssigkeiten einige Vorteile, z.B. höhere Reinheiten. Bisherige Dispergierungsmethoden in der Gasphase desagglomerieren Nanopartikel-Agglomerate… (more)

▼ Die Dispergierung von Nanopartikel-Agglomeraten in der Gasphase bietet gegenüber der Dispergierung in Flüssigkeiten einige Vorteile, z.B. höhere Reinheiten. Bisherige Dispergierungsmethoden in der Gasphase desagglomerieren Nanopartikel-Agglomerate lediglich bis zu einer Größe von 300nm. Für eine Dispergierung müssen die wirkenden Belastungen die mechanische Stabilität der Agglomerate, die eine Funktion der Struktur ist, übersteigen. Hierbei weisen kompaktere Agglomerate höhere mechanische Stabilitäten aufgrund einer erhöhten Anzahl an interpartikulären Bindungen auf. Diese Arbeit befasst sich mit der mechanischen Stabilität von Nanopartikel-Agglomeraten unterschiedlicher Strukturen und Größen kleiner 400nm. Dafür wurde das Fragmentierungsverhalten der Agglomerate bei verschiedenen Beanspruchungen untersucht. Die Agglomerate wurden in turbulenten und laminaren Scherströmungen sowie durch schräge Impaktion beansprucht. Bei den Beanspruchungen in Strömungen ist keine Fragmentierung im experimentell untersuchten Beanspruchungsbereich aufgetreten. Ein Vergleich mit der theoretischen mechanischen Stabilität unter Annahme von van-der-Waals Haftenergien zwischen den Primärpartikeln zeigt, dass die wirkenden Strömungskräfte zu gering für eine Fragmentierung sind. Die geringen Belastungen in der Gasphase sind eine Folge der geringen Dichten und Viskositäten von Gasen. Dagegen wirken bei der Impaktion Belastungen, die ein Vielfaches größer als die mechanische Stabilität sind. Bei den hier untersuchten Impaktionsbedingungen konnten die Agglomerate abhängig von ihrer Struktur nahezu bis auf die Primärpartikel desagglomeriert werden. Hierbei zeigt sich, dass die schräge Impaktion zu einer effektiveren Fragmentierung gegenüber der senkrechten Impaktion führt. Die Einsatzenergien sind reduziert und es kommt zu einer erhöhten Zunahme des Fragmentierungsgrades mit steigender Impaktionsenergie. Die durchgeführten Experimente ergaben zudem einen Einfluss der Agglomeratstruktur auf die Fragmentierung. Bei offenen Agglomeraten mit niedrigeren fraktalen Dimensionen (Df_2,3) tritt eine Umstrukturierung bei der Impaktion auf. Dies führt zu einer Erhöhung der Einsatzenergie für die Fragmentierung. Außerdem wird die Zunahme des Fragmentierungsgrades mit steigender Impaktionsenergie durch die Umstrukturierung reduziert. Die Fragmentierung wird bei allen untersuchten Agglomeratstrukturen maßgeblich von der tangentialen Geschwindigkeitskomponente bestimmt. Um dies zu berücksichtigen, wurde für die Beschreibung des Fragmentierungsgrades eine modifizierteWeibull-Statistik entwickelt. Neben der Fragmentierung müssen die Agglomerate/Fragmente für eine kontinuierliche Gasphasendispergierung nach der Impaktion wieder abspringen. Aus den Untersuchungen zum Abspringen geht hervor, dass das Abspringverhalten von offen-strukturierten Agglomeraten (Df<2) allein von den Primärpartikeleigenschaften bestimmt wird, solange keine Fragmentierung auftritt. Die Impaktionsgeschwindigkeit, ab der Abspringen einsetzt, ist für diese… Advisors/Committee Members: Weber, Alfred.

Subjects/Keywords: ddc:620; Nanopartikel-Agglomerate – Fragmentierung – Agglomeratstabilität

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APA (6^th Edition):

Gensch, M. (2018). Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen. (Thesis). Technische Universität Dortmund. Retrieved from https://doi.org/10.21268/20181114-093048 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181114-094332-3 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000676 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000444/Db113826.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):

Gensch, Manuel. “Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen.” 2018. Thesis, Technische Universität Dortmund. Accessed December 05, 2019. https://doi.org/10.21268/20181114-093048 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181114-094332-3 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000676 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000444/Db113826.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):

Gensch, Manuel. “Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen.” 2018. Web. 05 Dec 2019.

Vancouver:

Gensch M. Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen. [Internet] [Thesis]. Technische Universität Dortmund; 2018. [cited 2019 Dec 05]. Available from: https://doi.org/10.21268/20181114-093048 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181114-094332-3 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000676 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000444/Db113826.pdf.

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

Council of Science Editors:

Gensch M. Mechanische Stabilität von Nanopartikel-Agglomeraten bei mechanischen Belastungen. [Thesis]. Technische Universität Dortmund; 2018. Available from: https://doi.org/10.21268/20181114-093048 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20181114-094332-3 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000676 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000444/Db113826.pdf

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

University of Alberta

2. Dobson, Peter. Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure.

Degree: MS, Department of Mechanical Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/w0892b079

► Computer modeling is critical for catalyst layer (CL) design in polymer electrolyte membrane fuel cells. Water-filled and ionomer-filled agglomerate models have been suggested as representations… (more)

Subjects/Keywords: fuel cell; parameter estimation; agglomerate; catalyst layer; modeling

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APA (6^th Edition):

Dobson, P. (2011). Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/w0892b079

Chicago Manual of Style (16^th Edition):

Dobson, Peter. “Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure.” 2011. Masters Thesis, University of Alberta. Accessed December 05, 2019. https://era.library.ualberta.ca/files/w0892b079.

MLA Handbook (7^th Edition):

Dobson, Peter. “Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure.” 2011. Web. 05 Dec 2019.

Vancouver:

Dobson P. Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2019 Dec 05]. Available from: https://era.library.ualberta.ca/files/w0892b079.

Council of Science Editors:

Dobson P. Investigation of the polymer electrolyte membrane fuel cell catalyst layer microstructure. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/w0892b079

Case Western Reserve University

3. Horwatt, Steven Wayne. The influence of agglomerate structure on the dispersive mixing process.

Degree: PhD, Macromolecular Science, 1991, Case Western Reserve University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1055778042

► The transmission of stress in an agglomerate, and hence the stress required for breakup of the agglomerate, is strongly dependent on the agglomerate structure. The… (more)

▼ The transmission of stress in an agglomerate, and hence the stress required for breakup of the agglomerate, is strongly dependent on the agglomerate structure. The purpose of this study was to investigate the influence of agglomerate structure on the dispersion process through the use of computer simulations. A total of six agglomerate structures were simulated using various simple cubic lattice based models; the agglomerates ranged from very tenuous, highly ramified structures with a fractal dimension of 1.96 to very compact structures having a fractal dimension of 3.0. Two models of the stress required to rupture the agglomerates were formulated. The first model was based on fracture of the agglomerate along a planar surface; this model invariably predicted that rupture would occur in the outer fringes of the agglomerate, where the density of the cluster was lowest. The second model was based on fracture along an irregular surface, and accounted for the concentration of stress at the roots of branches in the agglomerate. This stress concentration was found to cause the fragments produced from the highly ramified clusters to be comparable in size to the parent cluster. The irregular fracture model also predicted much lower critical rupture stresses and a stronger dependence of the critical rupt ure stress on cluster size (for the fractal clusters) than did the planar fracture model. Simulations of agglomerate breakup at supercritical stresses were carried out, under the assumption that breakup occurs by successive fracture of the cluster at its weakest point until all fragments produced are stable at the stress applied. Using this model, the average fragment size exhibited a power law dependence on the applied stress (above the critical stress) for all of the clusters simulated. The magnitude of the exponent in this power law relationship increased as the structure went from being highly ramified to completely dense. Advisors/Committee Members: Manas-Zloczower, Ica (Advisor).

Subjects/Keywords: agglomerate structure; dispersive mixing process

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APA (6^th Edition):

Horwatt, S. W. (1991). The influence of agglomerate structure on the dispersive mixing process. (Doctoral Dissertation). Case Western Reserve University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1055778042

Chicago Manual of Style (16^th Edition):

Horwatt, Steven Wayne. “The influence of agglomerate structure on the dispersive mixing process.” 1991. Doctoral Dissertation, Case Western Reserve University. Accessed December 05, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1055778042.

MLA Handbook (7^th Edition):

Horwatt, Steven Wayne. “The influence of agglomerate structure on the dispersive mixing process.” 1991. Web. 05 Dec 2019.

Vancouver:

Horwatt SW. The influence of agglomerate structure on the dispersive mixing process. [Internet] [Doctoral dissertation]. Case Western Reserve University; 1991. [cited 2019 Dec 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1055778042.

Council of Science Editors:

Horwatt SW. The influence of agglomerate structure on the dispersive mixing process. [Doctoral Dissertation]. Case Western Reserve University; 1991. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1055778042

University of Manchester

4. Marthosa, Sutida. Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling.

Degree: PhD, 2012, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/improvement-of-electrocatalyst-performance-in-hydrogen-fuel-cells-by-multiscale-modelling(534c4857-865e-4759-a44f-e1639e4eaa1b).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555548

► The work in this thesis addresses the improvement of electrocatalyst performance in hydrogen PEM fuel cells. An agglomerate model for a catalyst layer was coupled… (more)

▼ The work in this thesis addresses the improvement of electrocatalyst performance in hydrogen PEM fuel cells. An agglomerate model for a catalyst layer was coupled with a one dimensional macroscale model in order to investigate the fuel cell performance. The model focuses on the agglomerate scale and the characteristic length in this study was 0.4 µm. The model was validated successfully with the experimental data. Based on the analysis of variance method at a 99% confidence level, the variation in the average fuel cell voltage was significantly sensitive to that in the volume fraction of electrolyte in an agglomerate. The effect of changing electrolyte film thickness was observed to have a significant impact only in the mass transport limited region, whereas the effect of changing agglomerate radius was found over the entire range of current density. An analysis comparing the effect of agglomerate shape at a constant platinum loading, a constant characteristic length and assuming the semi-finite structure was suitable for this study. Sphere, cylinder and slab agglomerate geometries were considered. The behaviour of the utilisation effectiveness was discovered to be strongly affected by the agglomerate shape. The improvement in the utilisation effectiveness was non-linear with current density. The advantage of the slab geometry in distributing reactant through the agglomerate volume was reduced and consequently the increase in utilisation effectiveness for slab-like agglomerates diminishes in the high current density region. At 0.85 Acm−2, the maximum improvement of the catalyst utilisation effectiveness in slab was 27.8% based on the performance in sphere. The improvement in fuel cell maximum power density achieved using slab-like agglomerate was limited to around 3%. The improvement in the overall fuel cell performance by changing the agglomerate shape was not significant. To achieve significant improvements in fuel cell performance will require changes to other features of the catalyst layer.

Subjects/Keywords: 621.31; PEM fuel cell; fuel cell modelling; agglomerate model; electrocatalyst

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APA (6^th Edition):

Marthosa, S. (2012). Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/improvement-of-electrocatalyst-performance-in-hydrogen-fuel-cells-by-multiscale-modelling(534c4857-865e-4759-a44f-e1639e4eaa1b).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555548

Chicago Manual of Style (16^th Edition):

Marthosa, Sutida. “Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling.” 2012. Doctoral Dissertation, University of Manchester. Accessed December 05, 2019. https://www.research.manchester.ac.uk/portal/en/theses/improvement-of-electrocatalyst-performance-in-hydrogen-fuel-cells-by-multiscale-modelling(534c4857-865e-4759-a44f-e1639e4eaa1b).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555548.

MLA Handbook (7^th Edition):

Marthosa, Sutida. “Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling.” 2012. Web. 05 Dec 2019.

Vancouver:

Marthosa S. Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling. [Internet] [Doctoral dissertation]. University of Manchester; 2012. [cited 2019 Dec 05]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/improvement-of-electrocatalyst-performance-in-hydrogen-fuel-cells-by-multiscale-modelling(534c4857-865e-4759-a44f-e1639e4eaa1b).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555548.

Council of Science Editors:

Marthosa S. Improvement of electrocatalyst performance in hydrogen fuel cells by multiscale modelling. [Doctoral Dissertation]. University of Manchester; 2012. Available from: https://www.research.manchester.ac.uk/portal/en/theses/improvement-of-electrocatalyst-performance-in-hydrogen-fuel-cells-by-multiscale-modelling(534c4857-865e-4759-a44f-e1639e4eaa1b).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555548

Brigham Young University

5. Call, Ryan Scott. Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure.

Degree: MS, 2018, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7784&context=etd

► The sagebrush (Artemisia spp.) steppe is undergoing rapid ecological change. The degradation of sagebrush steppe rangelands has resulted in the listing of more than 350… (more)

▼ The sagebrush (Artemisia spp.) steppe is undergoing rapid ecological change. The degradation of sagebrush steppe rangelands has resulted in the listing of more than 350 animals and plants as species of conservation concern. In addition, there has been a decrease in recreational values, reduced forage production, degraded water resources, and an increase in fire frequency. In the sagebrush steppe, success rates for seeding sagebrush after wildfire are notoriously low. Not only are sagebrush seeds hard to sow due to their small size and associated flower parts, but seedlings are exposed to numerous stresses that lowers their survivability. To improve sowing efficiency and reduce the associated stresses to seedling development we use seed enhancement technologies. In Chapter 1, we explain how a rotary seed coater can be used to agglomerate and apply enhancements to Wyoming big sagebrush (Artemisia tridentata spp. wyomingensis) seed. Using a mix of compost and clay we used a rotary seed coater to create small uniform agglomerates that allowed for enhancements to be applied to the seed. Our study demonstrated that agglomerates have no negative effects on seed germination and increased the overall flow of seed. In Chapter 2, we analyzed the addition of the plant hormone abscisic acid (ABA) in seed coatings. This hormone may delay seed germination and allow seedlings to avoid mortality due to over-winter freezing. We determined effects of different concentrations of ABA on total germination and timing of germination. Using a wet-thermal accumulation model, we estimated germination timing of seeds using soil temperature and water potential data for six different sites in the Great Basin. These models illustrate the variation in germination timing across the Great Basin. From our results we proposed the idea of using ABA to create a bet- hedging strategy in seed mixes to increase the probability that some seeds would germinate when conditions are favorable for seedling success.

Subjects/Keywords: sagebrush; seed enhancement; agglomerate; germination; abscisic acid; bet-hedge; Plant Sciences

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APA (6^th Edition):

Call, R. S. (2018). Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7784&context=etd

Chicago Manual of Style (16^th Edition):

Call, Ryan Scott. “Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure.” 2018. Masters Thesis, Brigham Young University. Accessed December 05, 2019. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7784&context=etd.

MLA Handbook (7^th Edition):

Call, Ryan Scott. “Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure.” 2018. Web. 05 Dec 2019.

Vancouver:

Call RS. Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure. [Internet] [Masters thesis]. Brigham Young University; 2018. [cited 2019 Dec 05]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7784&context=etd.

Council of Science Editors:

Call RS. Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-Fire Seeding Failure. [Masters Thesis]. Brigham Young University; 2018. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7784&context=etd

University of Surrey

6. Mullier, Marie Anne. The strength of agglomerates and their breakage during fluidisation.

Degree: PhD, 1991, University of Surrey

URL: http://epubs.surrey.ac.uk/851417/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293370

► The breakage behaviour of agglomerated materials is of interest to many industries which handle powders in a granulated form. Products which pass through an agglomeration… (more)

Subjects/Keywords: 660; Agglomerate yield strength

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APA (6^th Edition):

Mullier, M. A. (1991). The strength of agglomerates and their breakage during fluidisation. (Doctoral Dissertation). University of Surrey. Retrieved from http://epubs.surrey.ac.uk/851417/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293370

Chicago Manual of Style (16^th Edition):

Mullier, Marie Anne. “The strength of agglomerates and their breakage during fluidisation.” 1991. Doctoral Dissertation, University of Surrey. Accessed December 05, 2019. http://epubs.surrey.ac.uk/851417/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293370.

MLA Handbook (7^th Edition):

Mullier, Marie Anne. “The strength of agglomerates and their breakage during fluidisation.” 1991. Web. 05 Dec 2019.

Vancouver:

Mullier MA. The strength of agglomerates and their breakage during fluidisation. [Internet] [Doctoral dissertation]. University of Surrey; 1991. [cited 2019 Dec 05]. Available from: http://epubs.surrey.ac.uk/851417/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293370.

Council of Science Editors:

Mullier MA. The strength of agglomerates and their breakage during fluidisation. [Doctoral Dissertation]. University of Surrey; 1991. Available from: http://epubs.surrey.ac.uk/851417/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293370

Delft University of Technology

7. Jin, W. Modeling of atomic layer deposition on nanoparticle agglomerates.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; 989257c4-0001-4f57-ad78-08f1180def7b ; 10.4233/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:isbn:978-94-6186-866-4 ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b

► Nanoparticles are increasingly applied in a range of fields, such as electronics, catalysis, energy and medicine, due to their small sizes and consequent high surface-volume… (more)

Subjects/Keywords: nanoparticle agglomerate; atomic layer deposition

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APA (6^th Edition):

Jin, W. (2017). Modeling of atomic layer deposition on nanoparticle agglomerates. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; 989257c4-0001-4f57-ad78-08f1180def7b ; 10.4233/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:isbn:978-94-6186-866-4 ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b

Chicago Manual of Style (16^th Edition):

Jin, W. “Modeling of atomic layer deposition on nanoparticle agglomerates.” 2017. Doctoral Dissertation, Delft University of Technology. Accessed December 05, 2019. http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; 989257c4-0001-4f57-ad78-08f1180def7b ; 10.4233/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:isbn:978-94-6186-866-4 ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b.

MLA Handbook (7^th Edition):

Jin, W. “Modeling of atomic layer deposition on nanoparticle agglomerates.” 2017. Web. 05 Dec 2019.

Vancouver:

Jin W. Modeling of atomic layer deposition on nanoparticle agglomerates. [Internet] [Doctoral dissertation]. Delft University of Technology; 2017. [cited 2019 Dec 05]. Available from: http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; 989257c4-0001-4f57-ad78-08f1180def7b ; 10.4233/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:isbn:978-94-6186-866-4 ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b.

Council of Science Editors:

Jin W. Modeling of atomic layer deposition on nanoparticle agglomerates. [Doctoral Dissertation]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; 989257c4-0001-4f57-ad78-08f1180def7b ; 10.4233/uuid:989257c4-0001-4f57-ad78-08f1180def7b ; urn:isbn:978-94-6186-866-4 ; urn:NBN:nl:ui:24-uuid:989257c4-0001-4f57-ad78-08f1180def7b ; http://resolver.tudelft.nl/uuid:989257c4-0001-4f57-ad78-08f1180def7b

Princeton University

8. Wilson, Maxwell. Mesoscale structure in metabolism and cell death .

Degree: PhD, 2015, Princeton University

URL: http://arks.princeton.edu/ark:/88435/dsp01f4752k12g

► The emerging field of bacterial cell biology is beginning to shed light on the grand subcellular complexity of these small cells. Advances in imaging technologies… (more)

Subjects/Keywords: Agglomerate; Antibiotic; Cytological Profiling; Enzyme Cluster; Tropodithietic Acid

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APA (6^th Edition):

Wilson, M. (2015). Mesoscale structure in metabolism and cell death . (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp01f4752k12g

Chicago Manual of Style (16^th Edition):

Wilson, Maxwell. “Mesoscale structure in metabolism and cell death .” 2015. Doctoral Dissertation, Princeton University. Accessed December 05, 2019. http://arks.princeton.edu/ark:/88435/dsp01f4752k12g.

MLA Handbook (7^th Edition):

Wilson, Maxwell. “Mesoscale structure in metabolism and cell death .” 2015. Web. 05 Dec 2019.

Vancouver:

Wilson M. Mesoscale structure in metabolism and cell death . [Internet] [Doctoral dissertation]. Princeton University; 2015. [cited 2019 Dec 05]. Available from: http://arks.princeton.edu/ark:/88435/dsp01f4752k12g.

Council of Science Editors:

Wilson M. Mesoscale structure in metabolism and cell death . [Doctoral Dissertation]. Princeton University; 2015. Available from: http://arks.princeton.edu/ark:/88435/dsp01f4752k12g

Penn State University

9. Khadilkar, Aditi Bhushan. Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics.

Degree: PhD, Energy and Mineral Engineering, 2016, Penn State University

URL: https://etda.libraries.psu.edu/catalog/hq37vn56b

► The utility of fluidized bed reactors for combustion and gasification can be enhanced if operational issues such as agglomeration are mitigated. The monetary and efficiency… (more)

▼ The utility of fluidized bed reactors for combustion and gasification can be enhanced if operational issues such as agglomeration are mitigated. The monetary and efficiency losses could be avoided through a mechanistic understanding of the agglomeration process and prediction of operational conditions that promote agglomeration. Pilot-scale experimentation prior to operation for each specific condition can be cumbersome and expensive. So the development of a mathematical model would aid predictions. The heterogeneity in ash chemical composition, gaseous atmosphere and distributive granular physics properties affect agglomeration. As the particle size distribution changes with agglomeration, the hydrodynamics such as particle collision frequencies also change continuously. This progression makes it challenging to predict the particle growth kinetics, since the chemistry- and physics-based parameters are interdependent. Existing models consider only one of these two aspects. The present work aimed to account for the heterogeneous conditions and develop a modeling methodology that integrates ash chemistry and granular physics. With this motivation, the study comprised of the following model development stages-1) development of an agglomeration modeling methodology based on binary particle collisions, 2) study of heterogeneities in ash chemical composition and gaseous atmosphere, 3) computation of a distribution of particle collision frequencies based on granular physics for a poly-disperse particle size distribution, 4) combining the ash chemistry and granular physics inputs to obtain agglomerate growth probabilities and 5) validation of the modeling methodology. The modeling methodology comprised of testing every binary particle collision in the system for sticking, based on the extent of dissipation of the particles’ kinetic energy through viscous dissipation by slag-liquid (molten ash) covering the particles. In the modeling methodology developed in this study, thermodynamic equilibrium calculations are used to estimate the amount of slag-liquid in the system, and the changes in particle collision frequencies are accounted for by continuously tracking the number density of the various particle sizes. The particle number density is also affected by the ash chemistry as solid particles melt to form slag. Computational fluid dynamics modeling is used in conjunction to obtain the initial granular physics inputs to the model. In this study, the heterogeneities in chemical composition of fuel ash were studied by separating the bulk fuel into particle classes that are rich in specific minerals. FactSage simulations were performed on two bituminous coals and an anthracite to understand the effect of particle-level heterogeneities on agglomeration. The mineral matter behavior of these constituent classes was studied. Each particle class undergoes distinct transformations of mineral matter at fluidized bed operating temperatures, as determined by using high temperature X-ray diffraction, thermo-mechanical analysis and scanning…

Subjects/Keywords: Agglomerate growth; Fluidization; Gasification; combustion; Combustion; Granulation; Collision frequency; Ash mineral transformations; Granular kinetic theory

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

APA (6^th Edition):

Khadilkar, A. B. (2016). Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics. (Doctoral Dissertation). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/hq37vn56b

Chicago Manual of Style (16^th Edition):

Khadilkar, Aditi Bhushan. “Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics.” 2016. Doctoral Dissertation, Penn State University. Accessed December 05, 2019. https://etda.libraries.psu.edu/catalog/hq37vn56b.

MLA Handbook (7^th Edition):

Khadilkar, Aditi Bhushan. “Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics.” 2016. Web. 05 Dec 2019.

Vancouver:

Khadilkar AB. Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics. [Internet] [Doctoral dissertation]. Penn State University; 2016. [cited 2019 Dec 05]. Available from: https://etda.libraries.psu.edu/catalog/hq37vn56b.

Council of Science Editors:

Khadilkar AB. Development of a Fluidized-Bed Agglomeration Modeling Methodology to Include Particle-level Heterogeneities in Ash Chemistry and Granular Physics. [Doctoral Dissertation]. Penn State University; 2016. Available from: https://etda.libraries.psu.edu/catalog/hq37vn56b

Technical University of Lisbon

10. Poeiras, Ana Patrícia Cebola. Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça.

Degree: 2015, Technical University of Lisbon

URL: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/9245

►

Mestrado em Engenharia Florestal e dos Recursos Naturais - Ramo Engenharia dos Produtos Florestais - Instituto Superior de Agronomia

The objective of this work is… (more)

Subjects/Keywords: black cork expanded agglomerate; black cork expanded regranulate; Quercus faginea; Eucalyptus maculata; Eucalyptus botryoides

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

APA (6^th Edition):

Poeiras, A. P. C. (2015). Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça. (Thesis). Technical University of Lisbon. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/9245

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):

Poeiras, Ana Patrícia Cebola. “Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça.” 2015. Thesis, Technical University of Lisbon. Accessed December 05, 2019. https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/9245.

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

MLA Handbook (7^th Edition):

Poeiras, Ana Patrícia Cebola. “Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça.” 2015. Web. 05 Dec 2019.

Vancouver:

Poeiras APC. Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça. [Internet] [Thesis]. Technical University of Lisbon; 2015. [cited 2019 Dec 05]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/9245.

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

Council of Science Editors:

Poeiras APC. Desenvolvimento de protótipos para pavimento e revestimento de parede em interiores com base em cortiça. [Thesis]. Technical University of Lisbon; 2015. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/9245

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

11. Gomes, José Alexandre Fernandes Lucas. Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados.

Degree: 2017, Universidade de Évora

URL: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/21810

► O aumento da consciencialização ambiental por parte das populações, para com os problemas ambientais, tem levado a uma procura constante de novas soluções. É possível… (more)

▼ O aumento da consciencialização ambiental por parte das populações, para com os problemas ambientais, tem levado a uma procura constante de novas soluções. É possível produzir, a partir de resíduos de compósitos de madeira, MDF e PB, carvões ativados numa forma monolítica. Estes adsorventes, com ABET entre os 639 e 1349m2g‐1, apresentam características interessantes. A aplicação destes carvões ativados em ensaios de adsorção de corantes a partir da fase líquida, no modo estacionário, mostra desempenhos bastante interessantes, com capacidades bastante elevadas com máximos de 280mgg‐1 para o azul‐de‐metileno e 92mgg‐1 para o vermelho neutro. De uma forma inovadora, testes em sistemas dinâmicos com adsorventes selecionados, demostram uma capacidade de remoção de cerca de 30% do total de corante introduzido no sistema. O trabalho foi desenvolvido no âmbito do projeto “Dos desperdícios de compósitos de MDF e PB aos Carvões Ativados” do CQE‐UÉ, com o apoio da Sonae Indústria; ABSTRACT: Environmental consciousness, related to the environmental problems, has been growing among the general population, leading to the search of solutions. Monolith activated carbons can be produced, from wood composites residues, MDF and PB. Adsorbents with ABET ranging from 639 to 1349m2g‐1 show interesting characteristics. A quite interesting performance has been showed, in the application of these activated carbons for the adsorption of dyes from the liquid phase, resulting in high adsorption capacities reaching 280mgg‐1 for the methylene blue and 92mgg‐1 for the neutral red. Selected adsorbents, tested in dynamic systems, in an innovative way, showed a capacity to remove about 30% of the dye within the system. The work was developed within the scope of CQE‐UÉ project “Dos desperdícios de compósitos de MDF e PB aos Carvões Ativados”, with the support of Sonae Indústria. Advisors/Committee Members: Mourão, Paulo Alexandre Mira.

Subjects/Keywords: Aglomerados de madeira; Carvão ativado; Adsorção; Corantes; Wood agglomerate; Activated carbon; Adsorption; Dyes

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

APA (6^th Edition):

Gomes, J. A. F. L. (2017). Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados. (Thesis). Universidade de Évora. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/21810

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):

Gomes, José Alexandre Fernandes Lucas. “Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados.” 2017. Thesis, Universidade de Évora. Accessed December 05, 2019. https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/21810.

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

MLA Handbook (7^th Edition):

Gomes, José Alexandre Fernandes Lucas. “Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados.” 2017. Web. 05 Dec 2019.

Vancouver:

Gomes JAFL. Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados. [Internet] [Thesis]. Universidade de Évora; 2017. [cited 2019 Dec 05]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/21810.

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

Council of Science Editors:

Gomes JAFL. Valorização de aglomerados de madeira pela produção e aplicação de carvões ativados. [Thesis]. Universidade de Évora; 2017. Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/21810

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

University of New South Wales

12. Tong, Zhenbo. Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers.

Degree: Materials Science & Engineering, 2012, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/51977 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10647/SOURCE01?view=true

► In recent years there has been high commercial interest to develop dry powder inhalers (DPI) for drug delivery to the respiratory tract. Current designs of… (more)

▼ In recent years there has been high commercial interest to develop dry powder inhalers (DPI) for drug delivery to the respiratory tract. Current designs of DPI were rather poor in performance due to the strong cohesion between pharmaceutical particles which are usually less the 5 micron and hence are difficult to disperse. One approach to optimise DPI performance was to develop a fundamental understanding of the underlying dispersion mechanisms. However, dispersion in DPI was a dynamic process which involves multiple physical factors due to agglomerate-device interaction as well as agglomerate-agglomerate and agglomerate-fluid interactions. To understand the dispersion mechanisms, microscopic information at a particle scale was required.In this thesis, a numerical study of powder dispersion mechanisms in DPI has been presented by combining computational fluid dynamics (CFD) model for gas phase and discrete element method (DEM) for particle phase. A series of simulations were performed to quantify the roles of different interactions in powder dispersion. For agglomerate-device interaction, our results showed that the impact energies in normal and tangential directions were comparable and both should be considered in order to describe breakage performance properly. During multiple agglomerate-device impactions, the generation of fine particles was mainly attributed to the second impaction instead of the first one. After the first impaction, the agglomerate was broken up into many small fragments with weak strength; second impaction further disintegrated them into smaller fragments. Agglomerate-agglomerate interaction occurred mainly at the very early stage of dispersion played less important role on dispersion performance than agglomerate-device interaction. The dispersion caused by internal shearing induced by air flow is not important in the device considered and the increase in flow rate mainly increased the kinetic energy of agglomerates which leaded to stronger agglomerate-device and agglomerate-agglomerate interactions. By analysing the various types of energy in dispersion, the dispersion efficiency can be correlated to the ratio of impact energy (including agglomerate-device and agglomerate-agglomerate impactions) and cohesion energy (related to agglomerate strength). When plot FPF (fine particle fraction) as a function of energy ratio, the correlation for all cases collapsed into a single curve, indicating that the energy ratio, obtained from particle scale simulation, can be a useful index to predict dispersion performance at the macroscopic scale. This works have successfully demonstrated that the CFD-DEM based microscopic study can be linked to macroscopic process performance. The understanding of powder dispersion mechanisms can be used to improve the performance of existing DPI or designing new inhalers with desirable dispersion performance. Advisors/Committee Members: Runyu, Yang, Materials Science & Engineering, Faculty of Science, UNSW, Aibing, Yu, Materials Science & Engineering, Faculty of Science, UNSW.

Subjects/Keywords: Dry powder inhalers; Computational fluid dynamics; Discrete element method; Agglomerate; Dispersion mechanisms

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

APA (6^th Edition):

Tong, Z. (2012). Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/51977 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10647/SOURCE01?view=true

Chicago Manual of Style (16^th Edition):

Tong, Zhenbo. “Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers.” 2012. Doctoral Dissertation, University of New South Wales. Accessed December 05, 2019. http://handle.unsw.edu.au/1959.4/51977 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10647/SOURCE01?view=true.

MLA Handbook (7^th Edition):

Tong, Zhenbo. “Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers.” 2012. Web. 05 Dec 2019.

Vancouver:

Tong Z. Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers. [Internet] [Doctoral dissertation]. University of New South Wales; 2012. [cited 2019 Dec 05]. Available from: http://handle.unsw.edu.au/1959.4/51977 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10647/SOURCE01?view=true.

Council of Science Editors:

Tong Z. Numerical study of the fundamental mechanisms of powder dispersion in pharmaceutical aerosol inhalers. [Doctoral Dissertation]. University of New South Wales; 2012. Available from: http://handle.unsw.edu.au/1959.4/51977 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10647/SOURCE01?view=true

University of Minnesota

13. Cao, Nanying. Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement.

Degree: PhD, Mechanical Engineering, 2017, University of Minnesota

URL: http://hdl.handle.net/11299/194630

► This thesis consists of two parts: unipolar diffusion charging of nanoparticles and its application on the method development of surface-area measurements. The electrical capacitance of… (more)

▼ This thesis consists of two parts: unipolar diffusion charging of nanoparticles and its application on the method development of surface-area measurements. The electrical capacitance of aerosol particles indicates their potential diffusion charging level, which is important for their classification by electrical mobility, precipitation (removal or collection) in electrical fields, and morphology characterization. A minimum potential energy method was used to calculate the electrical capacitance for agglomerates composed of equally sized spherical primary particles (PPs). By discretizing the particle surface using finite spherical elements, as net charge only resides on the surface of an isolated conductor, this method was extended to calculate the capacitance of arbitrarily shaped particles. Based on the capacitance, the charge of these particles was obtained by diffusion charging theory. In addition, the dynamics of capacitance and mean charge of agglomerate during sintering or coalescence (at constant particle volume) to aggregates and finally to compact structures was computed and found in agreement with sparse experimental data. Particle morphology strongly affects the capacitance and mean charge of fractal-like particles. For example, both decreased by 60% upon full coalescence or sintering of an agglomerate consisting initially of 128 PPs. Although geometric surface area (GSA) of nanoparticles has received much attention in many fields (drug delivery, catalysts, inhalation exposure, toxicity, etc.), no appropriate instruments and methods for online measurements of GSA are readily available. Therefore, this study intends to develop a Geometric Surface Area Monitor (GSAM) to measure the GSA of spherical as well as model agglomerate/aggregate nanoparticles in nearly real-time. The GSAM has two versions: 1. The GSAM (I) consists of several existing techniques in series, including inertial impaction, unipolar charging, electrostatic precipitation, and electrical current measurement. The GSAM (I) was first evaluated and calibrated by measuring the GSA of monodisperse nanoparticles. Spherical, aggregate, and agglomerate nanoparticles were tested in the calibration. It was found that the measured electrical current was proportional to the surface area concentration. The calibration curves obtained from the measurements of monodisperse particles was then applied for polydisperse spherical particles and compared the measured GSA with that determined by the well-known scanning mobility particle sizer (SMPS) where the GSAM (I) had less than 10% of deviation compared with SMPS. 2. In the GSAM (II), the commercialized nanoparticle surface area monitor was used and slightly modified. The instrument responses under two different conditions were combined in a weighted sum (WS) fashion to correlate with the aerosol GSA concentration. We present the GSA concentration results and comparisons with well-known SMPS data in both laboratory testing and field measurement. For the laboratory testing, the two methods have a good…

Subjects/Keywords: agglomerate; capacitance; geometric surface area; real-time; unipolar diffusion charger; weighted sum

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

APA (6^th Edition):

Cao, N. (2017). Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/194630

Chicago Manual of Style (16^th Edition):

Cao, Nanying. “Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement.” 2017. Doctoral Dissertation, University of Minnesota. Accessed December 05, 2019. http://hdl.handle.net/11299/194630.

MLA Handbook (7^th Edition):

Cao, Nanying. “Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement.” 2017. Web. 05 Dec 2019.

Vancouver:

Cao N. Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement. [Internet] [Doctoral dissertation]. University of Minnesota; 2017. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/11299/194630.

Council of Science Editors:

Cao N. Unipolar Diffusion Charging of Spherical and Agglomerated Nanoparticles and its Application toward Surface-area Measurement. [Doctoral Dissertation]. University of Minnesota; 2017. Available from: http://hdl.handle.net/11299/194630

University of Minnesota

14. Stanley, Nicholas James. The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment.

Degree: PhD, Mechanical Engineering, 2010, University of Minnesota

URL: http://purl.umn.edu/98009

► A leak in nanoparticle production equipment can cause large quantities of nanoparticles to be emitted into a workplace environment. Toxicity studies have shown hazards of… (more)

▼ A leak in nanoparticle production equipment can cause large quantities of nanoparticles to be emitted into a workplace environment. Toxicity studies have shown hazards of inhaling nanoparticles; however these studies may not be using the proper particles. Physical and chemical changes may occur as these nanoparticles travel from the production site through ambient air, causing worker exposure. With the correct size and concentration known at distances from the leak, realistic worker exposure can be determined and appropriate worker protection and occupational monitoring schemes can be developed. Different nanoparticle materials were produced with a diffusion burner and injected through an experimentally simulated leak into a wind tunnel (simulated workplace environment). The wind tunnel background face velocity was 0.25 m/s. Soot distributions (dg = 59 and dg = 113 nm) and TiO2 (dg = 21 nm) were used as the test aerosols. A smaller distribution of particles (dg < 8 nm) was also noticed at the injection site for soot and TiO2. Lung deposited surface area concentration was measured using a NSAM and the number size distribution was measured with a SMPS at distances of 0.9 m, 1.8 m, and 3.4 m (times of 3.6 s, 7.2 s, and 13.6 s, respectively) from the injection point. TEM images were gathered at the injection point and 3.4 m downstream. The soot (dg = 113 nm) and TiO2 (dg = 21 nm) distributions produced loose, chain-type agglomerates at the injection point with primary particle sizes of dpp = 30 nm and dpp = 4.5 nm, respectively. These distributions experienced an increase in geometric mean particle size between the injection point and 0.9 m downstream. Surface area per particle (NSAM/SMPS ratio) also increased between the injection point and 0.9 m downstream. There was no additional particle change after 0.9 m. Primary particle size also increased after the injection point within the wind tunnel. Therefore the agglomerate size change may have been caused by the primary particle size change, as coagulation is an unlikely cause of particle growth in this situation. The soot (dg = 59 nm) aerosol was not relevant for this analysis. The soot (dg = 59 nm) distribution was created using a Rich fuel/air mixture (φ = 2.05), which produced unburned fuel in the exhaust. When the simulated leak size was changed from 27 mm to 10 mm, the Richardson number of the leak changed from 197 to 0.42, and a bi-modal distribution formed at 0.9 m downstream (1st mode: dg = 16 nm, 2nd mode: dg = 70 nm). The first mode particle formation was likely caused by turbulent mixing of the leaked exhaust gases with background air, causing local supersaturation and new particle formation.

Subjects/Keywords: Nanoparticle agglomerate; Nanoparticle fate; Nanoparticle transport; NSAM; Particle change; Particle formation; Mechanical Engineering

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

APA (6^th Edition):

Stanley, N. J. (2010). The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment. (Doctoral Dissertation). University of Minnesota. Retrieved from http://purl.umn.edu/98009

Chicago Manual of Style (16^th Edition):

Stanley, Nicholas James. “The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment.” 2010. Doctoral Dissertation, University of Minnesota. Accessed December 05, 2019. http://purl.umn.edu/98009.

MLA Handbook (7^th Edition):

Stanley, Nicholas James. “The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment.” 2010. Web. 05 Dec 2019.

Vancouver:

Stanley NJ. The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment. [Internet] [Doctoral dissertation]. University of Minnesota; 2010. [cited 2019 Dec 05]. Available from: http://purl.umn.edu/98009.

Council of Science Editors:

Stanley NJ. The fate of airborne nanoparticles released from a leak in a nanoparticle production process into a simulated workplace environment. [Doctoral Dissertation]. University of Minnesota; 2010. Available from: http://purl.umn.edu/98009

Tampere University

15. Halme, Erkki. Optimizing the detachment of ore agglomerate bound microorganisms .

Degree: 2019, Tampere University

URL: https://trepo.tuni.fi//handle/10024/116330

► By bioleaching metals can be economically recovered from low-grade ores and waste ore, which would not be possible traditional mining methods. In bioleaching, dissolution of… (more)

▼ By bioleaching metals can be economically recovered from low-grade ores and waste ore, which would not be possible traditional mining methods. In bioleaching, dissolution of metals from sulfide ores is catalyzed by chemolithoautotrophic microorganisms that can survive in the extremely acidic mining environment. In heap leaching as much as 99% of microorganisms responsible for bioleaching are attached to the ore surface. However, the microbial abundance and diversity analyses are typically performed from leach liquor samples and, thus may result in limited or even biased view of microbial communities within the heaps. Although various techniques have been used for cell detachment generally optimized methods do not exist. The aim of this study was to optimize a method for the detachment of microorganisms from ore surfaces. Optimization was done using model organisms Acidithiobacillus ferrooxidans, Sulfolobus metallicus and a mesophilic enrichment culture. Microbes for the enrichment originated from heap leach liquor samples from Terrafame mine located in Sotkamo, Finland. The experiments were conducted using agglomerate of polymetallic black schist ore which also originated from the Terrafame mine. Microorganisms were attached onto the ore surface by recirculating culture solution (180 mL) through a column containing 200 g ore agglomerate for 24 h. For detachment, homogenized 15-g subsamples were taken from the columns and subjected to sonication procedures. Bacterial and archaeal cell abundances were determined using quantitative PCR. Cell counts based on DAPI staining and microscopy were also performed, however, the reliability of the microscopy results was compromised by non-cellular particles after detachment procedures. The recovery percentages of microbes were compared using commercial soil DNA ex-traction kit with and without sonication pre-treatment. With At. ferrooxidans, S. metallicus and enrichment culture over 94%, 99% and 95% of the cells were attached, respectively. Using commercial soil DNA extraction kit the percent recoveries of At. ferrooxidans and S. metallicus were 24±9 and 66±65, respectively. For At. ferrooxidans detachment with sonication pre-treatment was always more effective than without sonication pre-treatment. For S. metallicus detachment without sonication pre-treatment was more effective most of the time. Nevertheless, by using the optimized sonication pre-treatment percent recoveries up to 100% were achieved with both model organisms. With mixed culture 3.5±5% of the bacteria and 4.7±4% of the archaea were recovered without the sonication pre-treatment and the sonication did not improve the % recovery. The attachment method used in this work demonstrated the fast attachment of bioleaching microorganisms to agglomerated ore matrix. Archaea attached to the ore agglomerate more effectively than bacteria and to our knowledge this is first time the difference in attachment to the ore surface between bacteria and archaea has been compared quantitatively. This work also demonstrated that…

Subjects/Keywords: Heap leaching; Agglomerate; Microorganisms; Cell attachment and detachment; Acidithiobacillus ferrooxidans; Sulfolobus metallicus

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

APA (6^th Edition):

Halme, E. (2019). Optimizing the detachment of ore agglomerate bound microorganisms . (Masters Thesis). Tampere University. Retrieved from https://trepo.tuni.fi//handle/10024/116330

Chicago Manual of Style (16^th Edition):

Halme, Erkki. “Optimizing the detachment of ore agglomerate bound microorganisms .” 2019. Masters Thesis, Tampere University. Accessed December 05, 2019. https://trepo.tuni.fi//handle/10024/116330.

MLA Handbook (7^th Edition):

Halme, Erkki. “Optimizing the detachment of ore agglomerate bound microorganisms .” 2019. Web. 05 Dec 2019.

Vancouver:

Halme E. Optimizing the detachment of ore agglomerate bound microorganisms . [Internet] [Masters thesis]. Tampere University; 2019. [cited 2019 Dec 05]. Available from: https://trepo.tuni.fi//handle/10024/116330.

Council of Science Editors:

Halme E. Optimizing the detachment of ore agglomerate bound microorganisms . [Masters Thesis]. Tampere University; 2019. Available from: https://trepo.tuni.fi//handle/10024/116330

Universidade do Estado do Rio de Janeiro

16. Fernanda Christine Beux. Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro.

Degree: Master, 2014, Universidade do Estado do Rio de Janeiro

URL: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7667 ;

►

A água é essencial à manutenção da vida. No entanto, com as situações de estresse hídrico - disponibilidade hídrica inferior a 1.700 m per capita… (more)

▼

A água é essencial à manutenção da vida. No entanto, com as situações de estresse hídrico - disponibilidade hídrica inferior a 1.700 m per capita ao ano (FALKENMARK, 1989) - vivenciadas em diversos pontos do planeta, somadas ao acelerado crescimento da população mundial, os problemas relacionados ao uso da água tendem a aumentar. Neste contexto, a pegada hídrica (PH), que é um indicador de sustentabilidade ambiental, se torna uma importante ferramenta de gestão de recursos hídricos pois indica o consumo de água doce com base em seus usos. O presente trabalho objetiva mensurar a pegada hídrica em função das componentes industrial, doméstica e alimentar da população do bairro Rocinha, um aglomerado subnormal localizado no município do Rio de Janeiro. A pesquisa se deteve a um Estudo de Caso de 20 sub-bairros da comunidade. Sua abordagem foi quantitativa, contando com uma amostra de 203 domicílios, erro amostral de 7% e grau de confiança de 93%. Para tal, foi utilizada como ferramenta de cálculo o modelo Water Footprint Network do ano de 2005. Os resultados indicaram que, em média, a PH dos indivíduos que compõem a amostra é de 1715 m/ano per capita assim divididos: PH de consumo doméstico de água de 175 m/ano per capita (479 l/hab.dia); PH de produtos agrícolas igual a 1470 m/ano per capita, e PH de produtos industrializados de 70 m/ano per capita. Os resultados obtidos sugerem que os indivíduos da amostra com uma maior despesa mensal tendem a ter pegadas hídricas industrial e total também maiores.

Water is essential for sustaining life. However, the situations of hydric stress - less than 1.700 m per capita water availability per year (FALKENMARK, 1989) - experienced in many parts of the world, coupled with the rapid growth of the global population, the problems related to water use tend to increase. In this context, the water footprint (WF), which is an indicator of environmental sustainability becomes an important tool for water resource management indicates the consumption of fresh water based on their uses. This study aimed to measure the water footprint as a function of industrial components, domestic and feed of the population of the Rocinhas neighborhood, a cluster subnormal located in the municipality of Rio de Janeiro. The research was focused on a case study of 20 sub-districts of the community. Its approach was quantitative, with a sample of 203 households, sampling error of 7% and confidence level of 93%. For this purpose, was used as the tool for calculating the Water Footprint Network model year 2005. The results indicated that, on average, the WF of the individuals in the sample is 1715 m/ year per capita divided as follows: WF of domestic water consumption of 175 m/ year per capita (479 l/ inhab.day), WF agricultural products equal to 1470 m/ year per capita, and WF industrial products 70 m/ year per capita. The results suggest that individuals in the sample with a higher monthly expenditure tend to have industrial water footprints and overall greater.

Advisors/Committee Members: Luciene Pimentel da Silva, Júlio Domingos Nunes Fortes, Afonso Augusto Magalhães de Araújo, Alfredo Akira Ohnuma Junior.

Subjects/Keywords: Engenharia Ambiental; Pegada hídrica; Consumo de água; Aglomerado subnormal; Environmental Engineering; Water footprint; Water consumption; Subnormal agglomerate; ENGENHARIAS

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APA (6^th Edition):

Beux, F. C. (2014). Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro. (Masters Thesis). Universidade do Estado do Rio de Janeiro. Retrieved from http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7667 ;

Chicago Manual of Style (16^th Edition):

Beux, Fernanda Christine. “Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro.” 2014. Masters Thesis, Universidade do Estado do Rio de Janeiro. Accessed December 05, 2019. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7667 ;.

MLA Handbook (7^th Edition):

Beux, Fernanda Christine. “Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro.” 2014. Web. 05 Dec 2019.

Vancouver:

Beux FC. Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro. [Internet] [Masters thesis]. Universidade do Estado do Rio de Janeiro; 2014. [cited 2019 Dec 05]. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7667 ;.

Council of Science Editors:

Beux FC. Pegada hídrica de aglomerados subnormais: o caso do Bairro Rocinha / Rio de Janeiro. [Masters Thesis]. Universidade do Estado do Rio de Janeiro; 2014. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7667 ;

NSYSU

17. Lin, Chris. The study of spatial efficience for produer service industry in Taiwanese cities.

Degree: Master, Public Affairs Management, 2002, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0611102-140150

► In the past few years, the prominent achievement of economy in Taiwan has been called the â Taiwan Experienceâ or âThe Miracle of Economyâ. Urban… (more)

▼ In the past few years, the prominent achievement of economy in Taiwan has been called the â Taiwan Experienceâ or âThe Miracle of Economyâ. Urban is not only the place that people gather to take economic activities and live in groups, but also the area that produce and consume goods. Now the modern economy has expanded as the type of urban economic. Nowadays, service industry which has been the major industry during the transition of industrial structure in Taiwan could be an illustration that Taiwan is in the age of Service Economy, the functions of a city are going to be more various and delicate, and the division of industry is tending to be more professional. Though the service industry that just serves customers in the past canât totally meet the needs of the public, the growth of its high specialization and output value bridges the gap for the problems resulted from the manufacturing industry. Most important, the producer service industry has become the main industry in the world. The purpose of this research is to understand the development in the present and tendency of producer service industry, and also to measure the space efficiency of producer service industry in 22 counties for three years by Data Envelopment Analysis(DEA). The research is divided into five parts: the first part includes research structure and literature review. The second part is to discuss and figure out the theory of DEA. The third part is to analyze the transition and development of producer service in present days. In the fourth part of the research measures the efficiency of producer service industry in 22 counties, in the mean time it estimates the relation of among efficiency, agglomerate economy, city scale, public investment, and the development of other industries by regression analysis and chi-square test. Then the conclusions and recommendations would be discussed to government that makes the plans of economy industry policy and the development of producer service industry. The conclusions of this research are: 1.The producer service industry in Taiwan grows rapidly, and the industry gathers in Taipei city which Location Quotient is more than one . In addition, Taipei city plays the most role for industryâs output value, the numbers of employees and factories Moreover, the producer service industry in Taipei Metropolitan Area and other Metropolitan city gradually grows. Furthermore, the industry is expanding to the nearby metropolitan gradually. 2.The producer service industry and the industries in the producer service industry are influenced by Forward Linkage Effect. This shows that the industry grows rapidly following other industries development during the development of economy. 3.The producer service industry in Taipei city shows the excellent space efficiency. On the other hand, the some of 22 cities areas showed efficiency from 1986 to 1991, and the nearby metropolitan area also showed efficiency in 1996, especially in Taipei metropolitan area and in Kaohsiung metropolitan area. 4.The space efficiency of producer… Advisors/Committee Members: none (chair), none (committee member), none (chair).

Subjects/Keywords: Data Envelopment Analysis; producer service; Agglomerate Economy; efficiency.

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

APA (6^th Edition):

Lin, C. (2002). The study of spatial efficience for produer service industry in Taiwanese cities. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0611102-140150

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):

Lin, Chris. “The study of spatial efficience for produer service industry in Taiwanese cities.” 2002. Thesis, NSYSU. Accessed December 05, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0611102-140150.

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

MLA Handbook (7^th Edition):

Lin, Chris. “The study of spatial efficience for produer service industry in Taiwanese cities.” 2002. Web. 05 Dec 2019.

Vancouver:

Lin C. The study of spatial efficience for produer service industry in Taiwanese cities. [Internet] [Thesis]. NSYSU; 2002. [cited 2019 Dec 05]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0611102-140150.

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

Council of Science Editors:

Lin C. The study of spatial efficience for produer service industry in Taiwanese cities. [Thesis]. NSYSU; 2002. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0611102-140150

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

Case Western Reserve University

18. Fanelli, Maddalena. UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS.

Degree: PhD, Chemical Engineering, 2005, Case Western Reserve University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1119374160

► The behavior of clusters of particles ranging from the nanometer scale to the micrometer scale impacts a number of important processes. Dispersion of particle clusters… (more)

▼ The behavior of clusters of particles ranging from the nanometer scale to the micrometer scale impacts a number of important processes. Dispersion of particle clusters is seen in applications involving pharmaceutical tablets, detergent granules, agglomerates of biological cells, and clusters of pigments or fillers for advanced materials. As these clusters are subjected to shearing forces associated with the motion of their host fluid, they can be broken down into smaller fragments. Often, this is the desirable outcome, but in other cases dispersion may be undesirable. Previous research has analyzed and modeled dispersion in simplified and idealized situations: steady, simple flows and agglomerates of uniform structure. The current work aims to improve the level of sophistication for the understanding of dispersion processes by considering the effects of binders in particulate agglomerate systems and the impact of unsteady dispersion conditions, more representative of real dispersion scenarios. Through experimental trials, practical limitations of our testing protocols were clarified. Agglomerates made from compacted powders provided the most control and consistency in response. Multiple testing protocols were deemed key to clarifying the complex interactions that impact particulate agglomerate dispersion. Packing effectiveness and molecular weight were found to impact the characteristics of particulate agglomerates. The development of a flexible and detailed simulation allowed predictions of dispersion and enhanced understanding of the phenomenon. The discrete/distinct element method (DEM) was adopted to study the behavior of single nano-scale spherical agglomerates, immersed in a simple shear flow field, in response to shearing under steady or dynamic/oscillatory flow conditions. Results, in good agreement with reported experimental trends, were used to demonstrate the functionality of the three-dimensional simulation as a predictive and analytical tool. The current model allows probing and prediction of dispersion as a function of processing conditions, agglomerate structure/morphology, and material properties and interaction forces with a level of detail not previously seen. The approach will give insight into the dynamics of particulate break-up in real mixing systems, provide a systematic means of evaluating the relative importance of various forces in dispersion behavior, and clarify the role of modifier and primary particle properties and agglomerate morphology in dispersion. Advisors/Committee Members: Feke, Donald (Advisor).

Subjects/Keywords: dispersion; DEM; simulation; discrete element method; agglomerate; particle; aggregate

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

APA (6^th Edition):

Fanelli, M. (2005). UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS. (Doctoral Dissertation). Case Western Reserve University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1119374160

Chicago Manual of Style (16^th Edition):

Fanelli, Maddalena. “UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS.” 2005. Doctoral Dissertation, Case Western Reserve University. Accessed December 05, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1119374160.

MLA Handbook (7^th Edition):

Fanelli, Maddalena. “UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS.” 2005. Web. 05 Dec 2019.

Vancouver:

Fanelli M. UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS. [Internet] [Doctoral dissertation]. Case Western Reserve University; 2005. [cited 2019 Dec 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1119374160.

Council of Science Editors:

Fanelli M. UNDERSTANDING AGGLOMERATE DISPERSION: EXPERIMENTS AND SIMULATIONS. [Doctoral Dissertation]. Case Western Reserve University; 2005. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1119374160

University of Western Ontario

19. Li, Lingchao. Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed.

Degree: 2016, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/4120

► In an industrial Fluid CokerTM, liquid bitumen is injected into a bed of hot coke particles through spray nozzles, grouped in several banks at different… (more)

Subjects/Keywords: Fluid CokerTM; liquid distribution; gas velocity; gas distribution; jet stability; gas to liquid ratio; agglomerate formation; Other Chemical Engineering

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

APA (6^th Edition):

Li, L. (2016). Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/4120

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

Chicago Manual of Style (16^th Edition):

Li, Lingchao. “Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed.” 2016. Thesis, University of Western Ontario. Accessed December 05, 2019. https://ir.lib.uwo.ca/etd/4120.

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

MLA Handbook (7^th Edition):

Li, Lingchao. “Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed.” 2016. Web. 05 Dec 2019.

Vancouver:

Li L. Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed. [Internet] [Thesis]. University of Western Ontario; 2016. [cited 2019 Dec 05]. Available from: https://ir.lib.uwo.ca/etd/4120.

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

Council of Science Editors:

Li L. Effect of Local Bed Hydrodynamics on the Distribution of Liquid in a Fluidized Bed. [Thesis]. University of Western Ontario; 2016. Available from: https://ir.lib.uwo.ca/etd/4120

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

University of Western Ontario

20. Hamidi, Majid. Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed.

Degree: 2015, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/2679

► In the Fluid Coking process, if the local concentration of liquid is very high, particles may stick together which can eventually result in process upset… (more)

Subjects/Keywords: Fluidized bed; bogging detection; capacitance measurements; agglomerate breakage; bubble properties; supersonic jet fluctuation; Process Control and Systems

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

APA (6^th Edition):

Hamidi, M. (2015). Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/2679

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):

Hamidi, Majid. “Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed.” 2015. Thesis, University of Western Ontario. Accessed December 05, 2019. https://ir.lib.uwo.ca/etd/2679.

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

MLA Handbook (7^th Edition):

Hamidi, Majid. “Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed.” 2015. Web. 05 Dec 2019.

Vancouver:

Hamidi M. Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed. [Internet] [Thesis]. University of Western Ontario; 2015. [cited 2019 Dec 05]. Available from: https://ir.lib.uwo.ca/etd/2679.

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

Council of Science Editors:

Hamidi M. Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed. [Thesis]. University of Western Ontario; 2015. Available from: https://ir.lib.uwo.ca/etd/2679

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

University of Western Ontario

21. Bhatti, Muhammad Owais Iqbal. Study of Motion of Agglomerates Through a Fluidized Bed.

Degree: 2017, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/5066

► Formation of agglomerates in Fluid CokersTM can cause operating problems, such as excessive shed fouling, which can lead to premature unit shut down. Better understanding… (more)

Subjects/Keywords: Fluid Coking; Fluidized Bed; Radioactive Particle Tracking; Motion of Agglomerates; Agglomerate Segregation; Tribo-Electric; Core Annulus Flow; Other Chemical Engineering

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APA (6^th Edition):

Bhatti, M. O. I. (2017). Study of Motion of Agglomerates Through a Fluidized Bed. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/5066

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):

Bhatti, Muhammad Owais Iqbal. “Study of Motion of Agglomerates Through a Fluidized Bed.” 2017. Thesis, University of Western Ontario. Accessed December 05, 2019. https://ir.lib.uwo.ca/etd/5066.

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

MLA Handbook (7^th Edition):

Bhatti, Muhammad Owais Iqbal. “Study of Motion of Agglomerates Through a Fluidized Bed.” 2017. Web. 05 Dec 2019.

Vancouver:

Bhatti MOI. Study of Motion of Agglomerates Through a Fluidized Bed. [Internet] [Thesis]. University of Western Ontario; 2017. [cited 2019 Dec 05]. Available from: https://ir.lib.uwo.ca/etd/5066.

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

Council of Science Editors:

Bhatti MOI. Study of Motion of Agglomerates Through a Fluidized Bed. [Thesis]. University of Western Ontario; 2017. Available from: https://ir.lib.uwo.ca/etd/5066

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

Virginia Tech

22. Armstrong, Kenneth Weber. A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer.

Degree: MS, Mechanical Engineering, 2003, Virginia Tech

URL: http://hdl.handle.net/10919/10080

► A series of steady-state microscopic continuum models of the cathode catalyst layer (active layer) of a proton exchange membrane fuel cell are developed and presented.… (more)

▼ A series of steady-state microscopic continuum models of the cathode catalyst layer (active layer) of a proton exchange membrane fuel cell are developed and presented. This model incorporates O₂ species and ion transport while taking a discrete look at the platinum particles within the active layer. The original 2-dimensional axisymmetric Thin Film and Agglomerate Models of Bultel, Ozil, and Durand [8] were initially implemented, validated, and used to generate various results related to the performance of the active layer with changes in the thermodynamic conditions and geometry. The Agglomerate Model was then further developed, implemented, and validated to include among other things pores, flooding, and both humidified air and humidified O₂. All models were implemented and solved using FEMAP™ and a computational fluid dynamics (CFD) solver, developed by Blue Ridge Numerics Inc. (BRNI) called CFDesign™. The use of these models for the discrete modeling of platinum particles is shown to be beneficial for understanding the behavior of a fuel cell. The addition of gas pores is shown to promote high current densities due to increased species transport throughout the agglomerate. Flooding is considered, and its effect on the cathode active layer is evaluated. The model takes various transport and electrochemical kinetic parameters values from the literature in order to do a parametric study showing the degree to which temperature, pressure, and geometry are crucial to overall performance. This parametric study quantifies among a number of other things the degree to which lower porosities for thick active layers and higher porosities for thin active layers are advantageous to fuel cell performance. Cathode active layer performance is shown not to be solely a function of catalyst surface area but discrete catalyst placement within the agglomerate. Advisors/Committee Members: von Spakovsky, Michael R. (committeechair), Ellis, Michael W. (committee member), Nelson, Douglas J. (committee member).

Subjects/Keywords: Agglomerate; Modeling; CFD; PEMFC; Fuel Cell; Catalyst

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

APA (6^th Edition):

Armstrong, K. W. (2003). A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/10080

Chicago Manual of Style (16^th Edition):

Armstrong, Kenneth Weber. “A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer.” 2003. Masters Thesis, Virginia Tech. Accessed December 05, 2019. http://hdl.handle.net/10919/10080.

MLA Handbook (7^th Edition):

Armstrong, Kenneth Weber. “A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer.” 2003. Web. 05 Dec 2019.

Vancouver:

Armstrong KW. A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer. [Internet] [Masters thesis]. Virginia Tech; 2003. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/10919/10080.

Council of Science Editors:

Armstrong KW. A Microscopic Continuum Model of a Proton Exchange Membrane Fuel Cell Electrode Catalyst Layer. [Masters Thesis]. Virginia Tech; 2003. Available from: http://hdl.handle.net/10919/10080

23. Zanibellato, Alaric. Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection.

Degree: Docteur es, Chimie des matériaux, 2016, La Rochelle

URL: http://www.theses.fr/2016LAROS005

►

Un nouveau procédé, basé sur une adaptation innovante du principe de protection cathodique des ouvrages métalliques en milieu marin, consiste à favoriser la précipitation d’un… (more)

▼

Un nouveau procédé, basé sur une adaptation innovante du principe de protection cathodique des ouvrages métalliques en milieu marin, consiste à favoriser la précipitation d’un agglomérat calcomagnésien sur plusieurs centimètres d’épaisseur. En présence de sable et de coquillages, cet agglomérat pourrait permettre de stabiliser des zones littorales en cours d’érosion ou d’améliorer l’ancrage d’enrochements brise-lames. L’objectif de ce travail est d’étudier et de comprendre les mécanismes réactionnels de formation de cet agglomérat permettant une précipitation en volume loin de la cathode afin d’en optimiser la vitesse de formation ainsi que ses propriétés mécaniques. Premièrement, il a été montré dans ces travaux que le milieu électrolytique pouvait influer sur la croissance du dépôt, avec une possible inhibition de formation de carbonate de calcium pour les faibles potentiels. L’influence des produits de corrosion dans le mécanisme de protection cathodique a également été mise en évidence grâce à des polarisations effectuées dans NaCl, eau de mer artificielle et naturelle. Deuxièmement, des essais d’un mois en courant imposé ont été menés du laboratoire jusqu’au site naturel, afin de se rapprocher des conditions réelles. La densité de courant appliquée ainsi que les conditions hydrodynamiques sont des facteurs clefs étroitement liés l’un à l’autre, influant sur la masse et le rapport Ca/Mg. Ces travaux ont aussi permis de mettre en avant l’influence du temps de polarisation sur la composition du dépôt calcomagnésien, présentant une cinétique de croissance stable mais une fluctuation de composition après 15, 30 et 60 jours. Cette variation interne du rapport Ca/Mg, attribuée à un processus de « dissolution/précipitation » dépendant du gradient de pH, ainsi que la répartition de ces éléments au sein du dépôt pourraient jouer un rôle majeur dans l’évolution de la tenue mécanique du dépôt au cours du temps.

A new method, based on an innovative adaptation of cathodic protection principle of metal structures in marine environment, is to promote the precipitation of a calcareous agglomerate several centimeters thick. In the presence of sand and shells, this cluster could stabilize coastal areas being eroded or improve anchorage of breakwater riprap. The objective of this work is to study and understand the reaction mechanisms allowing to create a voluminous calcareous deposit away from the cathode and to optimize deposition time as well as its mechanical properties. First, it was shown in this work that the electrolytic medium could affect the growth of the deposit, with a possible inhibition of formation of calcium carbonate fot the low potential. The influence of corrosion products in the cathodic protection mechanism was also highlighted through polarizations performed in NaCl, artificial and natural sea water. Second, one month test with impressed current were conducted from laboratory to natural site, in order to get closer of real conditions. Current density and hydrodynamic conditions are key factors closely…

Advisors/Committee Members: Jeannin, Marc (thesis director), Sabot, René (thesis director).

Subjects/Keywords: Agglomérat calcomagnésien; Eau de mer; Aragonite; Brucite; Sédiments marins; Protection cathodique; Calcareous agglomerate; Seawater; Aragonite; Brucite; Marine sediments; Cathodic protection

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

APA (6^th Edition):

Zanibellato, A. (2016). Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection. (Doctoral Dissertation). La Rochelle. Retrieved from http://www.theses.fr/2016LAROS005

Chicago Manual of Style (16^th Edition):

Zanibellato, Alaric. “Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection.” 2016. Doctoral Dissertation, La Rochelle. Accessed December 05, 2019. http://www.theses.fr/2016LAROS005.

MLA Handbook (7^th Edition):

Zanibellato, Alaric. “Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection.” 2016. Web. 05 Dec 2019.

Vancouver:

Zanibellato A. Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection. [Internet] [Doctoral dissertation]. La Rochelle; 2016. [cited 2019 Dec 05]. Available from: http://www.theses.fr/2016LAROS005.

Council of Science Editors:

Zanibellato A. Synthèse et études physico-chimiques d’un agglomérat calcomagnésien formé sur acier en milieu marin : un éco-matériau pour la protection du littoral : Synthesis and physico-chemical studies of a calcareous agglomerate formed on steel in marine environment : an eco-material for coastal protection. [Doctoral Dissertation]. La Rochelle; 2016. Available from: http://www.theses.fr/2016LAROS005

Brno University of Technology

24. Princ, Pavel. Návrh hydraulického upevnění hořáku.

Degree: 2014, Brno University of Technology

URL: http://hdl.handle.net/11012/72180

► Tato bakalářská práce se zabývá konstrukčním řešením uchycení a řízení plynového hořáku. První část je věnována obecnému pojednání o výrobě umělého kameniva a jeho použití.… (more)

Subjects/Keywords: Umělé kamenivo; popílek; aglomerační rošt; měření hladiny popílku; Artificial aggregate; flue ash; agglomerate grate; measurement of flue ash level

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

APA (6^th Edition):

Princ, P. (2014). Návrh hydraulického upevnění hořáku. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/72180

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):

Princ, Pavel. “Návrh hydraulického upevnění hořáku. ” 2014. Thesis, Brno University of Technology. Accessed December 05, 2019. http://hdl.handle.net/11012/72180.

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

MLA Handbook (7^th Edition):

Princ, Pavel. “Návrh hydraulického upevnění hořáku. ” 2014. Web. 05 Dec 2019.

Vancouver:

Princ P. Návrh hydraulického upevnění hořáku. [Internet] [Thesis]. Brno University of Technology; 2014. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/11012/72180.

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

Council of Science Editors:

Princ P. Návrh hydraulického upevnění hořáku. [Thesis]. Brno University of Technology; 2014. Available from: http://hdl.handle.net/11012/72180

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

Brno University of Technology

25. Hanzlík, Václav. odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) .

Degree: 2013, Brno University of Technology

URL: http://hdl.handle.net/11012/26680

► Hlavním cílem práce je navrhnout vhodnou technologii odprášení chladícího pásu na aglomeraci Jih v Ostravě. V první části práce se zabývám výrobou aglomerátu a vlivem… (more)

Subjects/Keywords: chladící pás; aglomerát; prachová částice; látkový filtr; potrubí; cooling conveyor; agglomerate; dust elements; fabric filter; pipeline

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

APA (6^th Edition):

Hanzlík, V. (2013). odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/26680

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):

Hanzlík, Václav. “odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) .” 2013. Thesis, Brno University of Technology. Accessed December 05, 2019. http://hdl.handle.net/11012/26680.

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

MLA Handbook (7^th Edition):

Hanzlík, Václav. “odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) .” 2013. Web. 05 Dec 2019.

Vancouver:

Hanzlík V. odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) . [Internet] [Thesis]. Brno University of Technology; 2013. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/11012/26680.

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

Council of Science Editors:

Hanzlík V. odprášení chladícího pásu na aglomeraci(výkon pasu 130t/h) . [Thesis]. Brno University of Technology; 2013. Available from: http://hdl.handle.net/11012/26680

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

Brno University of Technology

26. Princ, Pavel. Návrh hydraulického upevnění hořáku.

Degree: 2014, Brno University of Technology

URL: http://hdl.handle.net/11012/34004

► Tato bakalářská práce se zabývá konstrukčním řešením uchycení a řízení plynového hořáku. První část je věnována obecnému pojednání o výrobě umělého kameniva a jeho použití.… (more)

Subjects/Keywords: Umělé kamenivo; popílek; aglomerační rošt; měření hladiny popílku; Artificial aggregate; flue ash; agglomerate grate; measurement of flue ash level

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Princ, P. (2014). Návrh hydraulického upevnění hořáku. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/34004

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):

Princ, Pavel. “Návrh hydraulického upevnění hořáku. ” 2014. Thesis, Brno University of Technology. Accessed December 05, 2019. http://hdl.handle.net/11012/34004.

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

MLA Handbook (7^th Edition):

Princ, Pavel. “Návrh hydraulického upevnění hořáku. ” 2014. Web. 05 Dec 2019.

Vancouver:

Princ P. Návrh hydraulického upevnění hořáku. [Internet] [Thesis]. Brno University of Technology; 2014. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/11012/34004.

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

Council of Science Editors:

Princ P. Návrh hydraulického upevnění hořáku. [Thesis]. Brno University of Technology; 2014. Available from: http://hdl.handle.net/11012/34004

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

University of Michigan

27. Chen, Yen-Hung. Porous Cathode Design and Optimization of Lithium Systems.

Degree: PhD, Mechanical Engineering, 2008, University of Michigan

URL: http://hdl.handle.net/2027.42/61698

► Narrowing the gap between theoretical and actual capacity in key Li-based battery systems can be achieved through improvements in both electronic and ionic conductivities of… (more)

▼ Narrowing the gap between theoretical and actual capacity in key Li-based battery systems can be achieved through improvements in both electronic and ionic conductivities of materials, via addition of conductive species. Additives do, however, penalize both volumetric and gravimetric properties, and also limit liquid transport and high rate performance. In this work, we developed techniques to design and optimize cathode system based directly on the relationships among ionic and electronic conductivities, and specific energy. We also investigated formation mechanisms, and resulting geometric characteristics in nanoparticle agglomerates, to systematically study percolation and conductivity in self-assembled structures. In our study of selection of conductive additives, architectures of model composite cathodes, comprised of active material, graphite, carbon black, and PVDF, were generated using our prior approach in simulating polydisperse arrangements. A key finding of this portion of the work, was that the conductive coatings strongly influence conductivity, via reduction of contact resistance. Thus, we conclude that neither surface nor bulk modifications of active material particles conductivities seem to be desirable targets for improvement of laminate conductivity, for the ranges of materials studied. In the cathode optimization study, our results quantified trade-offs among ionic and electronic conductivity, and conductivity and specific energy. We also provided quantitative relationships for improved utilization and specific power, with higher specific energy. Finally, we provided quantitative guidance for design of high energy density Li(Ni1/3Co1/3Mn1/3)O2 cells using conductive additives, and also provided guidelines for design of cathode systems, based directly on solid and liquid phase transport limitations. In the agglomeration and aggregation study, 3D, branchlike nanoparticle agglomerates were systematically studied via use of new algorithms in generation of such structures. Our findings in this portion of the study included the conclusion that Coulomb forces concentrated on the tip are likely root causes of the long chain-like shapes of observed clusters, creating branch-like soot agglomerates; particles tend to form a more compact and smaller cluster with van der Waals force. Under a certain combination of forces, including Coulomb and van der Waals forces, nanoparticles form self-similar structures with a specific fractal dimension. Advisors/Committee Members: Sastry, Ann Marie (committee member), Fogler, H. Scott (committee member), Mazumder, Jyotirmoy (committee member), Wang, Chia-Wei (committee member), Wooldridge, Margaret S. (committee member).

Subjects/Keywords: Li-ion Battery; Optimization; Conductive Additives; Nanoparticle Agglomerate; Engineering

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

APA (6^th Edition):

Chen, Y. (2008). Porous Cathode Design and Optimization of Lithium Systems. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/61698

Chicago Manual of Style (16^th Edition):

Chen, Yen-Hung. “Porous Cathode Design and Optimization of Lithium Systems.” 2008. Doctoral Dissertation, University of Michigan. Accessed December 05, 2019. http://hdl.handle.net/2027.42/61698.

MLA Handbook (7^th Edition):

Chen, Yen-Hung. “Porous Cathode Design and Optimization of Lithium Systems.” 2008. Web. 05 Dec 2019.

Vancouver:

Chen Y. Porous Cathode Design and Optimization of Lithium Systems. [Internet] [Doctoral dissertation]. University of Michigan; 2008. [cited 2019 Dec 05]. Available from: http://hdl.handle.net/2027.42/61698.

Council of Science Editors:

Chen Y. Porous Cathode Design and Optimization of Lithium Systems. [Doctoral Dissertation]. University of Michigan; 2008. Available from: http://hdl.handle.net/2027.42/61698

28. Bava, Luciana. Controlling Silica Cluster Dispersion Through Thermoresponsive Binders.

Degree: PhD, Chemical Engineering, 2008, Case Western Reserve University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1217562656

► The hydrodynamic dispersibility of fine particle agglomerates into polymeric media is affected by interparticle and particle-medium interaction forces. Binders are used to modify these interactions… (more)

Subjects/Keywords: Chemical Engineering; dispersion; cluster cohesivity; responsive polymers; agglomerate

…vi LIST OF FIGURES 2.8 2.9 2.10 Schematics of the silica agglomerate with and without… …hydrophobic powder Snapshots of silica agglomerate being dispersed in the cone and plate device at… …the agglomerate. A positive tensile force indicates tension (tensile force pointing… …concentration within the agglomerate, responsive binders present an innovative alternative to control… …and to the disruption of the agglomerate structure caused by the swelling/shrinking…

10 more images…

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

APA (6^th Edition):

Bava, L. (2008). Controlling Silica Cluster Dispersion Through Thermoresponsive Binders. (Doctoral Dissertation). Case Western Reserve University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1217562656

Chicago Manual of Style (16^th Edition):

Bava, Luciana. “Controlling Silica Cluster Dispersion Through Thermoresponsive Binders.” 2008. Doctoral Dissertation, Case Western Reserve University. Accessed December 05, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1217562656.

MLA Handbook (7^th Edition):

Bava, Luciana. “Controlling Silica Cluster Dispersion Through Thermoresponsive Binders.” 2008. Web. 05 Dec 2019.

Vancouver:

Bava L. Controlling Silica Cluster Dispersion Through Thermoresponsive Binders. [Internet] [Doctoral dissertation]. Case Western Reserve University; 2008. [cited 2019 Dec 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1217562656.

Council of Science Editors:

Bava L. Controlling Silica Cluster Dispersion Through Thermoresponsive Binders. [Doctoral Dissertation]. Case Western Reserve University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1217562656

29. Bumm, Sug Hun. Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder.

Degree: PhD, Polymer Engineering, 2010, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1271956146

► Mixing studies of glass fibers and silica filler into thermoplastics, two polypropylenes and polyamide 12, in co-rotating twin screw extruder were carried out. Fiber length… (more)

Subjects/Keywords: Engineering; Materials Science; Glass fiber; Silica agglomerate; Twin screw extruder

…22 2.5.2. Agglomerate Dispersion Mechanism… …77 5.2.1. Characterization of silica agglomerate size… …125 VII. KINETIC MODEL OF AGGLOMERATE BREAKUP OF SILICA PARTICLES .... 126 7.1. Introduction… …127 7.2.1. Kinetic model of agglomerate breakup in silica compounding… …34 5.1 Mass average particle silica agglomerate size after mixing with screw configuration…

8 more images…

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

APA (6^th Edition):

Bumm, S. H. (2010). Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder. (Doctoral Dissertation). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1271956146

Chicago Manual of Style (16^th Edition):

Bumm, Sug Hun. “Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder.” 2010. Doctoral Dissertation, University of Akron. Accessed December 05, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271956146.

MLA Handbook (7^th Edition):

Bumm, Sug Hun. “Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder.” 2010. Web. 05 Dec 2019.

Vancouver:

Bumm SH. Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder. [Internet] [Doctoral dissertation]. University of Akron; 2010. [cited 2019 Dec 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1271956146.

Council of Science Editors:

Bumm SH. Mixing Studies and Simulation of Compounding Chopped Fiber and Silica Filler into Thermoplastics in a Modular Co-Rotating Twin Screw Extruder. [Doctoral Dissertation]. University of Akron; 2010. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1271956146

30. Roseta, Maria Oliveira Zenha da Cruz. Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior.

Degree: 2013, Repositório Científico do Instituto Politécnico de Lisboa

URL: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/3627

►

Trabalho Final de Mestrado elaborado no Laboratório de Engenharia Civil para obtenção do grau de Mestre em Engenharia Civil na Área de Especialização de Edificações… (more)

▼

Trabalho Final de Mestrado elaborado no Laboratório de Engenharia Civil para obtenção do grau de Mestre em Engenharia Civil na Área de Especialização de Edificações no âmbito do protocolo de cooperação entre o ISEL e o LNEC

O interesse do estudo sobre a aplicação do aglomerado de cortiça expandida como revestimento exterior surge da constatação de dois fatores críticos numa perspetiva de desenvolvimento sustentável: a utilização de um produto constituído por um recursonatural renovável – a cortiça – e a preocupação em poder vir a contribuir para uma maior sustentabilidade na construção. O aglomerado de cortiça expandida é um produto que reutiliza resíduos de cortiça – a falca – e com um processo de fabrico não poluente, o qu e reforça o interesse em investigar a sua utilização como revestimento exterior de paredes com características de isolante térmico . Sendo esta utilização relativamente recente, apenas há cerca de dez anos, ciente da necessidade de conhecer mais sobre a sua viabilidade ainda há muito a conhecer sobre a fiabilidade das características a longo prazo e as vantagens da sua aplicação como revestimento exterior. Neste contexto o presente estudo visa aprofundar e confirmar aspetos, alguns deles mal estudados e até desconhecidos, que têm a ver com as características que poderão fazer do aglomerado uma boa escolha enquanto revestimento exterior. A análise dessas características e de outras ainda desconhecidas foi realizada em condições reais de exposição, numa célula experimental no LNEC, e em laboratório através de diversos ensaios em ambas as condições. Os resultados pretendem não só confirmar aspetos conhecidos como contribuir para a criação de soluções que melhorem o desempenho do aglomerado, para que este possa vir a ser, num futuro próximo, uma opção viável e preferida como revestimento exterior.

The interest of the study on the implementation of expanded cork agglomerate as exterior cladding comes from the observation of two critical factors in a perspective of sustainable development: the use of a product consisting of a renewable natural material - cork -; and the concern to contribute to greater sustainability in construction. The expanded cork agglomerate is a product that re -uses cork waste - the “falca” - and a non-polluting manufacturing process, which strengthens the interest in investigati ng its use as external finishing with thermal insulation characteristics. Once this use is relatively recent, only about ten years old, one being aware of the need to know more about its viability, there is still much to learn about the reliability of the long term characteristics and advantages of itsapplication as exterior cladding. In this context, this study aims to deepen and confirm aspects, some of them poorly studied and even unknown, aspects that deal with characteristics that will do of the agglomerate a good choice…

Advisors/Committee Members: Santos, Carlos Alberto Pina dos, Lopes, Jorge Manuel Grandão.

Subjects/Keywords: Aglomerado de cortiça expandida; Revestimento exterior; Célula experimental; Condições reais; Condições em laboratório; Expanded cork agglomerate; Exterior cladding; Experimental cell; Actual conditions; Conditions in the laboratory

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

APA (6^th Edition):

Roseta, M. O. Z. d. C. (2013). Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior. (Thesis). Repositório Científico do Instituto Politécnico de Lisboa. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/3627

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):

Roseta, Maria Oliveira Zenha da Cruz. “Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior.” 2013. Thesis, Repositório Científico do Instituto Politécnico de Lisboa. Accessed December 05, 2019. http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/3627.

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

MLA Handbook (7^th Edition):

Roseta, Maria Oliveira Zenha da Cruz. “Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior.” 2013. Web. 05 Dec 2019.

Vancouver:

Roseta MOZdC. Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior. [Internet] [Thesis]. Repositório Científico do Instituto Politécnico de Lisboa; 2013. [cited 2019 Dec 05]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/3627.

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

Council of Science Editors:

Roseta MOZdC. Estudo laboratorial e em condições reais sobre o aglomerado de cortiça expandida aplicado como revestimento exterior. [Thesis]. Repositório Científico do Instituto Politécnico de Lisboa; 2013. Available from: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/3627

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

Open Access Theses and Dissertations