Dissertations / Theses on the topic 'Viscosity modification'
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Wong, Evelyn Yin-Yue. "Effect of viscosity modification by fiber dose and heat treatment on postprandial blood glucose response." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28882.pdf.
Full textBukiet, Frédéric. "Influence de la modification de l'hypochlorite de sodium par adjonction de tensioactifs sur l'énergie interfaciale et la viscosité dynamique de la solution d'irrigation." Thesis, Montpellier 1, 2014. http://www.theses.fr/2014MON12201/document.
Full textThe complexity of the root canal anatomy requires an efficient irrigation protocol. Sodium hypochlorite must penetrate in the whole of the endodontic system in order to be strongly active in terms of antiseptic and solvant properties. Therefore, the use of surfactants mixed to sodium hypochlorite is a promising approach to enhance the penetration depth and the spreading of endodontic irrigant within the root canal. The purpose of this thesis based on two international publications is to study the influence of surfactant addition to sodium hypochlorite on its surface tension and dynamic viscosity. The first chapter describes the different stakes, issues and irrigation techniques thanks to a critical review of the literature. The second chapter focuses on hydrodynamics and wetting properties especially surface energy, critical micellar concentration, dynamic viscosity and flow regimen. After a description of the theoretical aspects and the potential applications in root canal therapy, all the materials and methods used in this thesis are detailed in the third chapter. The fourth chapter describes the influence of surfactant addition on the wettability of endodontic irrigant on the basis of a preliminary study and several additional studies that led to a first international publication. The fifth chapter describes the influence of surfactant addition on the dynamic viscosity of endodontic irrigant and its flow regimen on the basis of a study which led to a second international publication.The final chapter of this thesis constitues the conclusion of this work and the associated prospects regarding this topic
Servant, Sylvie. "Variabilité des propriétés physico-chimiques d'exsudats d'Acacia senegal (gomme arabique) d'une plantation expérimentale au Ferlo (Sénégal). Modification des chaînes." Rouen, 1994. http://www.theses.fr/1994ROUES045.
Full textSinquin, Anne. "Alginates associatifs : synthèse et étude physico-chimique en milieu aqueux." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL035N.
Full textLunt, Phillip E. "Heating Protocol for the Construction of a Statistical Model Predicting the Texture Parameters of Commercially Available Baby Foods." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami15874852673775.
Full textGirard, Rémi. "Etude des modifications des propriétés de surface des verres d’oxydes par traitements thermiques : application à la guérison des fissures." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20191/document.
Full textThe glass durability, its reactivity or its functionalization can be optimized by surface modification, allowing development of new applications. The aim of this thesis is to better understand the changes induced at the oxide glass surface and sub-surface and the evolution of surface micro-flaws during thermal treatment.These treatments are performed around glass transition temperature, but at temperatures at which the samples are not deformed. The key role of the atmosphere of treatment is especially highlighted. Analyses focused on the float glass both on the “air side” and “tin side”.Based on SIMS and infrared spectroscopies, results show that the sub-surface changes depend on the water content of the furnace atmosphere. While the sub-surface, initially hydrated, is not strongly modified when the humidity level is high, significant changes are induced under dry atmosphere. The dehydration of the sub-surface induces indeed the formation of a silica enriched layer by impoverishment of modified ions.In order to characterize the influence of these changes on the evolution of micro-flaws morphology during thermal treatments, micro-cracks are generated by Vickers indentation and analyzed by optical and electronic microcopies. Two main behaviors are evidenced: either a direct crack closure during the first step of the thermal treatment due to stress relaxation or a crack spheroidization caused by viscous flow driven by capillarity forces. Both mechanisms are in competition and depend on the initial state of the glass sub-surface. The viscosity of this layer is highly dependent on the hydration level and can vary significantly during the treatment. In case of “tin side” of float glass, the effect of oxidant atmosphere is also evidenced
Horvat, Frank E. "A Numerical and Experimental Investigation for the Modification and Design of a Gerolor Using Low Viscoscity Fluids." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1342585429.
Full textMhaoud, Nadia. "Rôle des triglycérides sur les modifications des propriétés rhéologiques microscopiques et moléculaires de l'hématie humaine." Nancy 1, 1990. http://www.theses.fr/1990NAN10546.
Full textRey-Valette, Hélène. "Modifications hémorhéologiques au cours de l'hypertension artérielle et rôle des antihypertenseurs sur la rhéologie sanguine." Bordeaux 2, 1991. http://www.theses.fr/1991BOR23007.
Full textMartelli, Luca. "Studio delle proprietà reologiche di leganti bituminosi modificati ad "alta lavorabilità" mediante Dynamic Shear Rheometer." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2009/.
Full textLefebvre, Sophie. "Performances thermohydrauliques d'un échangeur tubulaire à effet Joule traitant en régime laminaire des fluides visqueux newtoniens ou non : amélioration de ces performances par modification géométrique des tubes et jonctions." Compiègne, 1998. http://www.theses.fr/1998COMP1121.
Full textFischer, Arnaud. "Synthèse de nouveaux copolymères amphiphiles cationiques a blocs par voie radicalaire contrôlée et examen de leurs propriétés physico-chimiques en solution aqueuse." Vandoeuvre-les-Nancy, INPL, 2000. http://www.theses.fr/2000INPL069N.
Full textGlinel, Karine. "Polysaccharides perfluorés dérivés de pullulane : synthèse et étude des propriétés en solution." Rouen, 1999. http://www.theses.fr/1999ROUES009.
Full textChien, Ching-Yi, and 簡靜怡. "Studies on the viscosity stability and modification technique of soy sauce paste." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/74233706633677342519.
Full text國立中興大學
食品暨應用生物科技學系所
99
Soy sauce paste is a kind of seasonings preferred by Taiwanese consumers. In forming thickened texture, it is mainly made up by adding some thickener and seasonings on soy sauce. Soy sauce paste has slippery, sticky and diverse-flavored (sweet, salty and fresh) characteristics. However, the decrease in viscosity and syneresis of soy sauce paste that cause the quality degradation are often neglected. This study examines the influence of these factors on the quality of soy sauce paste. Based on soy sauce paste viscosity stability with modification techniques would (a) analyze physical and chemical characteristics of starch and soy sauce paste, (b) analyze quality of soy sauce paste on differences cooking temperature, time and treatments, (c) analyze quality of soy sauce paste on differences storage conditions. By investigating the unstable syneresis in soy sauce paste, suitable ratio of the starch added and its effects helped to improve texture, viscosity, taste of soy sauce paste. This study examines the physicochemical properties, color, temperature and quality stability on addition( 4, 5, 6, 7 and 8%) and different proportions (0:10, 3:7, 4:6, 5:5, 6:4, 7:3 and 10:0) of waxy rice flour (WR) and modified waxy corn starch (MWCS). The experimental results showed that increasing starch addition (4, 5, 6, 7, and 8%) would influence the gelatinization temperature, peak viscosity and holding viscosity. Based on the rapid viscosity analyzer (RVA), results showed that gelatinization temperature of soy sauce paste with sugar addition was 82~85℃. By assessing different cooking temperature, time and proportions of WR and MWCS in soy sauce paste also showed the soy sauce paste heated up to 85℃ is more stable in viscosity and syneresis. It was suggested that by adding 6% of starch( WR : MWCS = 7:3) and cooking at 90℃ for 30 minutes would stabilize the quality.
Gonzalez, Garza Paola Anaid. "Effects of nanoconfinement on structure and properties of side-chain liquid crystalline polymers." Thesis, 2013. http://hdl.handle.net/2152/23568.
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St-Hilaire, Marie-Odette. "Méthodes de volumes finis pour la simulation sous-résolue de détonations." Thèse, 2007. http://hdl.handle.net/1866/18145.
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