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Dissertations / Theses on the topic 'Gums and resins'

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Published: 4 June 2021

Last updated: 29 July 2024

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1

Sanares, Anna Marie E. "Tensile bond strength of simplified-step and all-in-one adhesives on light- and chemical- activated composite resins." Thesis, Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B23300486.

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2

Nocanda, Xolani Wittleton. "A synthetic and spectrometric study of the initial phases in urea-formaldehyde resin formation." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1005048.

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In a series ofpreIiminary studies of urea-formaldehyde reactions, the influence of the U:F molar ratio, the temperature and the catalyst were investigated. Subsequently, in a more rigorous evaluation of the influence of four variables on urea-formaldehyde resin formation, viz., U:F molar ratio, pH, temperature and reaction time, a set of twenty reactions were performed using a statistical approach. The results indicate that high resin viscosity is best achieved by using a high U:F molar ratio (1:2) and conducting the reaction at 90°C. Several basic components produced in urea-formaldehyde reac

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3

Rajesh, Raja Puthenkovilakom. "Interaction of Tackifier Resins with Water-based and Olefinic Polymers." Diss., North Dakota State University, 2012. https://hdl.handle.net/10365/26483.

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The objective of this research was to investigate the interaction of tackifier resins in water-based and olefinic polymers for potential pressure sensitive adhesive applications. The first part of this research work was focused on evaluating the usefulness of olefinic block copolymer blends with two amorphous polyolefins (atactic propylene homopolymer and ethylene-propylene copolymer) as potential base polymers for hotmelt pressure-sensitive adhesives. Unsaturated and saturated hydrocarbon resins were studied as potential compatibilizing agents and rheology modifiers. Results show that the che

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4

Wood, Jessica Lee. "Comparisons of silica polyamine composites and crosslinked polystyrenes resins." CONNECT TO THIS TITLE ONLINE, 2008. http://etd.lib.umt.edu/theses/available/etd-08272008-133833/.

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5

Tripplett, Kirsten Jill. "The ethnobotany of plant resins in the Maya cultural region of southern Mexico and Central America /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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6

Hardesty, Rudd Matthew. "Development of sensitometric techniques for the characterization of stereolitographic resins /." Online version of thesis, 1994. http://hdl.handle.net/1850/11735.

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7

Groff, Kimberly A. "Estimating adsorption equilibria of organic compounds on synthetic resins." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/20494.

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8

Schuck, Susan Marguerite 1957. "FLOWERING PHENOLOGY AND OUTCROSSING IN TETRAPLOID GRINDELIA CAMPORUM GREENE (GUMWEED, POLLINATION, ARIZONA)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276715.

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9

Karam, Hani Shukri. "Characterization of resins in alternative fuel mixtures." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/74736.

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"Resins" is a class of compounds believed to play an important role in the conversion processes of coal and coal-related materials into oils. Methods currently used to isolate this fraction, generally lack reproducibility and yield impure and strongly overlapping fractions which do not reflect the actual group-type distribution in the liquid fuel. A separation method based on liquid column chromatography was developed, which divides liquid fuels into eight distinct and minimally overlapping chemical classes: five non-polar (saturated, mono-, di-, tri-, and polynuclear aromatics), one interme

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10

Khattab, Ahmed. "Exploratory development of VARIM process for manufacturing high temperature polymer matrix composites." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4186.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (month day, year) Vita. Includes bibliographical references.

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11

Bhat, Prabhas M. "Simulation and validation of mold filling during Compression Resin Transfer Molding (CRTM) process." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 122 p, 2008. http://proquest.umi.com/pqdweb?did=1459914951&sid=8&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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12

McAninch, Ian M. "Evaluation of randomly oriented carbon nanotubes as reinforcement in plant oil resins." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 241 p, 2008. http://proquest.umi.com/pqdweb?did=1625774501&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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13

Butt, Arif. "Resin flow characterization during thermoplastic composite consolidation." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/12010.

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14

Weideman, Mark H. "An infiltration/cure model for manufacture of fabric composites by the resin infusion process." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03032009-040744/.

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15

Roberts, Karen Narelle 1972. "An investigation of core-shell rubber modified vinyl ester resins." Monash University, School of Physics and Materials Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/8416.

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16

Makris, Stephen P. "Removal of resin and fatty acids from pulp mill wastewater streams." Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-01062004-132204/unrestricted/makris%5Fstephen%5Fp%5F200405%5Fphd.pdf.

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Thesis (Ph. D.)--Chemical Engineering, Georgia Institute of Technology, 2004.<br>Lucian A. Lucia, Committee Member; Spyros G. Pavlostathis, Committee Member; Sujit Banerjee, Committee Chair; Yulin Deng, Committee Member; Howard L. Empie, Committee Member. Includes bibliographical references (leaves 146-155).

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17

Fernandes, Frederico Silva de Freitas. "Efeito do uso diário de um limpador químico enzimático sobre o biofilme de Candida albicans formado sobre materiais para base de próteses removíveis." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288090.

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Orientador: Altair Antoninha Del Bel Cury<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-17T11:17:25Z (GMT). No. of bitstreams: 1 Fernandes_FredericoSilvadeFreitas_D.pdf: 739091 bytes, checksum: 727731c2061dd20f60d28b6f01753ccf (MD5) Previous issue date: 2011<br>Resumo: Os limpadores químicos de prótese têm sido bastante indicados para o controle do biofilme formado sobre próteses removíveis de pacientes com comprometimento motor. Apesar de estudos prévios terem mostrado que uma única imersão nesses agent

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18

Howes, Jeremy C. "Interfacial strength development in thermoplastic resins and fiber-reinforced thermoplastic composites." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/77899.

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The objective of this study was to develop tests that could be used to characterize autohesive strength development in amorphous thermoplastic resins and fiber-reinforced thermoplastic prepregs. All tests were performed using polysulfone P1700 thermoplastic resin and AS4/P1700 graphite-polysulfone prepreg. Two test methods were examined to measure autohesion in neat resin samples. These included an interfacial tension test based on the ASTM tensile adhesion test (ASTM D897) and a fracture toughness test using a compact tension (CT) specimen (based on the ASTM toughness test for metals ASTM E

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19

Kambly, Kiran. "Characterization of curing kinetics and polymerization shrinkage in ceramic-loaded photocurable resins for large area maskless photopolymerization (LAMP)." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31740.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Das, Suman; Committee Member: Halloran, John; Committee Member: Henderson, Clifford; Committee Member: Kalaitzidou, Kyriaki. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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20

Siu, Wing Kwan May 1979. "Applications and microwave assisted synthesis of poly(ethylene glycol) modified Merrifield resins." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82427.

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A microwave assisted methodology was developed to modify Merrifield resins (1-2% cross-linked containing 1.0-3.5 mmol Cl-/g) with different nominal molecular weights PEG (200-1000). The synthesis was also carried out by conventional heating to assess the differences between the two procedures. The most efficient synthesis was achieved by using microwave and by using PEG with molecular weight 200 and MR 2% crosslinked containing 1.25 mmol Cl -/g. The structural elucidation was carried out using Fourier transform infrared (FTIR) spectroscopy and elemental analyses. Upon pyrolsis-GC/MS ana

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21

Lawrence, Jeffrey M. "Methodologies for resin flow prediction and manipulation in liquid composite molding processes." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 19.79Mb, 374 p, 2005. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3181855.

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22

Chohra, Mourad. "Modeling of filtration process during manufacturing of functionally graded composites with particulate suspensions." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.57 Mb., 142 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430752.

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23

Do, Pete Binh. "Effect of textile preform structure on the mechanical properties and failure modes of composites from resin transfer molding process." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/8512.

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24

Hanneman, Andrew J. S. "Modification of wood extractives and hemicelluloses during thermomechanical pulping : implications for newsprint sizing /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5540.

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25

Howdeshell, Kembra L. "Effects of exposure to environmentally-relevant levels of bisphenol A on mouse reproductive physiology and maternal behavior /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060107.

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26

Govignon, Quentin Paul Nicéphore Marc Marie. "Monitoring and simulation of the filling and post-filling stages of the resin infusion process /." e-Thesis University of Auckland, 2009. http://hdl.handle.net/2292/5630.

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Thesis (PhD--Mechanical Engineering)--University of Auckland, 2009.<br>" A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Engineering." "Centre for Advanced Composite Materials." Includes bibliographical references.

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27

Shields, Karen M. "Resin transfer molding with powder-coated preforms." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/17988.

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28

MacRae, John Douglas. "Development and verification of a resin film infusion/resin transfer molding simulation model for fabrication of advanced textile composites." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-05092009-040737/.

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29

Cao, Xia. "Integrated Analysis of Low Profile Unsaturated Polyester and Vinylester Resins Cured at Low Temperatures." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1039038413.

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30

Kenerson, Jonathan E. "Quality Assurance and Quality Control Methods for Resin Infusion." Fogler Library, University of Maine, 2010. http://www.library.umaine.edu/theses/pdf/KenersonJE2010.pdf.

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31

Scharf, Melissa. "The rheological effect of hydrocolloids on selected attributes of a lemon flavored beverage containing artificial sweeteners." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-01102009-063855/.

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32

Dunkleberger, Alisha J. "Bondo : not just for cars." Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1345337.

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This creative project was a study of combining large-scale ceramics and polymer resin (Brandname: Bondo) vessels. This project came out of an earlier experiment combining metals and resin, and therefore the interest in combining clay and resin was a natural transition for me, since ceramics was my major focus. I had a definite interest in the challenge of marrying two very different materials; clay and resin, and by using this combination I would make vessels that were visually successful and engaged the viewer.The technical basis for all of the ceramic elements of the vessels is wheel throwin

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33

Wells, Ricardo Angelo. "Comparison of distribution coefficients of 14 elements on three cation exchangers." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2641.

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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2017.<br>Certain resins used in ion-exchange separation techniques have become very expensive. Although ion-exchange is an economical method to soften water it is important to keep the cost low during the process. Any exorbitant costs will make a process unattractive and eventually obsolete. Bio-Rad AG MP-50 macroporous resin (supplied by Bio-Rad Laboratories, Ltd.) at present costs approximately R20000 (twenty thousand rand) for 500 g compared to Amberlyst 15 R840.00 for 500 mL and Dowex Marathon MSC R312.34 macroporous resi

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34

Brown, Janis Michelle. "Production of controlled networks and morphologies in toughened thermosetting resins using real-time, in-situ cure monitoring." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/40306.

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Chemical and physical changes occur during the processing of toughened thermosetting resins. A number of properties are related to the type and sequence of these changes. There is a need for the development of in-situ real-time sensors to follow these changes. Once these sensors are developed, they can be used to preferentially select networks and/or morphologies by feedback-controlled "intelligent" processing. A practical, durable, inexpensive Fourier Transform NearInfrared (FTNIR) fiber optic sensor was developed and the cure of a model toughened cyanate as well as a commercial paste adhes

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35

Saunders, Heath G. "Wax distribution quantification using digital image analysis techniques." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11102009-020230/.

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36

Schwarzlaff, Sabine Susanne. "Guar and locust bean gums as partial replacers of all-purpose flour in bread : an objective and sensory evaluation /." This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11102009-020247/.

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37

Cecere, James A. "Structure-property relationships of functionalized modifiers for thermosetting resin systems." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53927.

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Conventional methods of imparting toughness to ordinarily brittle thermosetting resins involve the incorporation of a second, discreet phase. Traditionally, this phase has been either a functionalized butadiene-acrylonitrile based elastomer or an unreactive thermoplastic. This dissertation describes the preparation, characterization, and evaluation of new functionalized polysiloxane elastomer and thermoplastic modifiers and their morphological implications to the toughening and physical behavior of, principally, epoxy thermosetting systems. Secondary amine-terminated poly(dimethyl-co-dipheny

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38

Faria, Tatiane Dias Marques. "Adesivo de borracha termoplastica reforçado com nanoargila." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267172.

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Orientador: Julio Roberto Bartoli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-14T01:31:00Z (GMT). No. of bitstreams: 1 Faria_TatianeDiasMarques_M.pdf: 2955450 bytes, checksum: 63c9a4b195b9577f64bd709603a63795 (MD5) Previous issue date: 2008<br>Resumo: Adesivos preparados com borracha termoplástica são de grande importância na indústria de adesivos sensíveis à pressão devido à sua grande versatilidade de processamento. Porém, geralmente estes adesivos apresentam desvantagens em ensaios em que temperatura

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39

Rodrigues, Karen da Silva. "Reciclagem de PETpc na incorporação da formulação de uma tinta em pó." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1394.

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A crescente utilização de embalagens de PET tem como conseqüência elevada geração de resíduos sólidos. A reciclagem é uma alternativa para a reutilização deste material polimérico. Este trabalho tem como objetivo avaliar a influência da incorporação de 2,5, 5 e 7,5% (m/m) de pó de PETpc em substituição à carga mineral sulfato de bário (BaSO4) em uma tinta em pó base resina poliéster de formulação comercial. Foram utilizados dois processos de obtenção da tinta: no processo 1, a tinta foi processada na extrusora dupla rosca (processo convencional) e no processo 2, primeiramente a resina e o PETp

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40

Conrad, Matthew. "Experimental investigations and theoretical modeling of large area maskless photopolymerization with grayscale exposure." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45965.

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Large Area Maskless Photopolymerization (LAMP) is a technology being developed to fabricate integrally-cored ceramic molds for the investment casting of turbine airfoils. In LAMP, ultraviolet (UV) light in the form of bitmap images is projected from a spatial light modulator (SLM) onto a photocurable ceramic material system (PCMS). Exposed and unexposed regions are determined through black and white portions of the bitmaps, respectively. UV light induces photopolymerization and the formation of an insoluble solidified network. Three-dimensional structures are built layer-by-layer through seque

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41

Schwarzlaff, Sabine S. "Guar and locust bean gums as partial replacers of all-purpose flour in bread: an objective and sensory evaluation." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/45620.

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The purpose of this research was to determine whether all-purpose flour could be partially replaced with locust bean gum (LBG) and guar gum, and produce an acceptable bread product. A pilot study determined that up to 4% gum replacement for flour was feasible. All bread treatments were evaluated objectively by standing height, texture, color, and cell size. Moisture determinations were obtained for each bread variation. Sensory quality was examined by consumer testing. The amount of heat required to break the hydrogen bonds in amylopectin, indicative of bread staling, was measured by differen

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42

Golestanian, Hossein. "Modeling of process induced residual stresses and resin flow behavior in resin transfer molded composites with woven fiber mats /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841293.

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43

Sharifi, Mohammad S. "Fractionations and analysis of trunk exudates from pistacia genus in relation to antimicrobial activity." Thesis, View thesis, 2006. http://handle.uws.edu.au:8081/1959.7/35517.

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H. pylori is one of the most significant discoveries in gastroenterology in the past century. It is associated with a wide range of gastroduodenal pathologies and gastric cancer. Antibiotic resistance in H. pylori has emerged as a significant clinical problem. The body of work contained within this dissertation was carried out to investigate an alternative therapy based on observations of the traditional therapy for gastric disease in the Middle East. One of these traditional therapies centres on plants belonging to the Pistacia genus. This study represents the first reported investigation int

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44

Fernandes, Frederico Silva de Freitas. "Efeito de limpadores quimicos sobre biofilmes de Candida formados sobre a superficie de materiais para base de proteses removiveis." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288368.

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Orientadores: Altair Antoninha Del Bel Cury, Tatiana Pereira Cenci<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-15T11:15:55Z (GMT). No. of bitstreams: 1 Fernandes_FredericoSilvadeFreitas_M.pdf: 733963 bytes, checksum: a861bd550ab439f138ef016317f27638 (MD5) Previous issue date: 2010<br>Resumo: Biofilme de Candida spp formado na superfície de próteses removíveis é considerado o principal fator etiológico da candidose, a qual é a infecção oral fúngica mais prevalente em humanos. Em pacientes com comp

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45

Kuan, Yean-Der. "Process-induced damage evolution and management in resin transfer molding of composite panels /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9998490.

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46

Barnett, Nina (Kuentzer). "Permeability characterization and microvoid prediction during impregnation of fiber tows in dual-scale fabrics." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 2.70 Mb., 144 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430754.

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47

Sharifi, Mohammad S. "Fractionations and analysis of trunk exudates from pistacia genus in relation to antimicrobial activity." View thesis, 2006. http://handle.uws.edu.au:8081/1959.7/35517.

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Thesis (Ph.D.) -- University of Western Sydney, 2006.<br>A thesis presented to the University of Western Sydney, College of Health and Science, School of Biomedical and Health Sciences, in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliography.

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48

Nalla, Ajit R. "Closed-loop flow control approaches for VARTM." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 2.86 Mb., 89 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430781.

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49

Tomotani, Ester Junko. "Imobilização da invertase em resina de troca iônica (tipo Dowex®): seu uso na modificação da sacarose." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/9/9134/tde-16082017-104536/.

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A invertase comercial (Bioinvert®) foi imobilizada por adsorção em resinas aniônicas do tipo Dowex® [1x8:50-400, 1x4:50-400 e 1x2:100-400, todos copolímeros estireno-divinilbenzênicos, porém de granulometria (50-400 mesh) e quantidades de ligações cruzadas diferentes (2-8%)] em meio aquoso. A melhor percentagem de adsorção da invertase nas resinas foi observada em pH 5,5 a 32°C, tendo o complexo Dowex®1x4-200/lnvertase apresentado índice de adsorção e coeficiente de imobilização iguais a 100%. Os parâmetros cinéticos e termodinâmicos foram determinados para a invertase solúvel e insolúvel de B

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50

Hammond, Vincent H. "Verification of a two-dimensional infiltration model for the resin transfer molding process." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/41537.

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A two-dimensional fmite element model for the infiltration of a dry textile preform by an injected resin has been verified. The model, which is based on the finite element/control volume technique, determines the total infiltration time and the pressure increase at the mold inlet associated with the RTM process. Important input data for the model are the compaction and permeability behavior of the preform along with the kinetic and rheological behavior of the resin. <p>The compaction behavior for several textile preforms was determined by experimental methods. A power law regression model was

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