Log in

Relevant bibliographies by topics / Solvent system / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Solvent system.

Dissertations / Theses on the topic 'Solvent system'

Author: Grafiati

Published: 18 May 2024

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Solvent system.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Ghosh, Gargi. "Investigation on solute-solute, solute-solvent and solvent-solvent interactions prevailing in some liquid system." Thesis, University of North Bengal, 2009. http://hdl.handle.net/123456789/1351.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hoy, Thomas Lavelle. "Optimizing Solvent Blends for a Quinary System." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1462199621.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Gupta, Bindu 1963. "Solubility of anthracene in complex solvent system." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276989.

Full text

Abstract:

The solubility of anthracene was measured in binary and ternary co-solvent-water systems. The binary systems consisted of water and a completely miscible organic solvent (CMOS); while the ternary system incorporated a partially miscible organic solvent (PMOS) into the binary systems. The data were used to test the following model:(UNFORMATTED TABLE OR EQUATION FOLLOWS) log Sᵃ(c,p,w) = log Sᵃ(w) + f(c) σᵃ(c) + [(Sᴾ(w) 10 (f(c) σᴾ(c))/D(p)] σᵃ(p). (TABLE/EQUATION ENDS) The terms on the right of the equality sign are the aqueous solubility of anthracene, the solubility of anthracene in CMOS-water

APA, Harvard, Vancouver, ISO, and other styles

4

Fowler, Michael James. "Construction of prototype system for directional solvent extraction desalination." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76130.

Full text

Abstract:

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 37-38).<br>Directional solvent extraction has been demonstrated as a low temperature, membrane free desalination process. This method dissolves the water into an inexpensive, benign directional solvent, rejects the contaminants, then recovers pure water, and re-uses the solvent. In order to bring this technology closer to real world application, a continuous process prototype for a directional solvent extraction system

APA, Harvard, Vancouver, ISO, and other styles

5

Brunet, Jean-Christophe. "An expert system for solvent-based separation process synthesis." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/42949.

Full text

Abstract:

Expert systems are being used more daily in chemical engineering. This work continues the development of an EXpert system for SEParation flowsheet synthesis named EXSEP. Written in Prolog, it can generate flowsheets for four multicomponent separations: distillation, absorption, stripping and liquid-liquid extraction. For these separations, we describe a large collection of heuristics (or rules) that are used for flowsheet synthesis. EXSEP uses several of these heuristics and the Kremser equation to test the thermodynamic feasibility of separation tasks. EXSEP requires only basic input data suc

APA, Harvard, Vancouver, ISO, and other styles

6

Tawfik, Wahid Yosry. "Design of optimal fuel grade ethanol recovery system using solvent extraction." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/11152.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

BHANDARI, SHASHANK. "Design of a solvent recovery system in a pharmaceutical manufacturing plant." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190901.

Full text

Abstract:

Solvents play a crucial role in the Active Pharmaceutical Ingredient (API) manufacturing and are used in large quantities. Most of the industries incinerate the waste solvents or send it to waste management companies for destruction to avoid waste handling and cross-contamination. It is not a cost effective method and also hazardous to the environment. This study has been performed at AstraZeneca’s API manufacturing plant at Sodertalje, Sweden. In order to find a solution, a solvent recovery system is modeled and simulated using ASPEN plus and ASPEN batch modeler. The waste streams were select

APA, Harvard, Vancouver, ISO, and other styles

8

Abdul, Manaf Norhuda. "MANAGEMENT DECISION SUPPORT SYSTEM OF SOLVENT-BASED POST-COMBUSTION CARBON CAPTURE." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/16567.

Full text

Abstract:

A management decision-support framework for a coal-fired power plant with solvent based post combustion CO2 capture (PCC) (integrated plant) is proposed and developed in this thesis. A brief introduction pertaining to the solvent-based PCC technology, thesis motivations and objectives are given in Chapter 1. Chapter 2 comprises a comprehensive literature review of solvent-based PCC plant from the bottom level (PCC instrumentation level) until the top level (managerial decision of PCC system). Chapter 3 describes the development of solvent-based PCC dynamic model via empirical methods. Open-

APA, Harvard, Vancouver, ISO, and other styles

9

Mukherjee, P. "Solvent-free, triphase catalytic oxidation reactions over TS-1/H2O2 system." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2277.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Alturaihi, Haydar. "Biocatalysis of lipoxygenase in a model system using selected organic solvent media." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=96760.

Full text

Abstract:

The biocatalysis of commercially purified soybean lipoxygenase (LOX-1B: EC 1.13.11.12) in ternary micellar and neat organic solvent media, using linoleic acid as a substrate model, was investigated. The organic solvent, used throughout this study, was at different ratios in the ternary micellar system, composed of Tris-HCl buffer solution (0.1 M, pH 9.0) and 10 µM of Tween-40 as the surfactant. The results indicated a 1.4- and 1.7-fold increase in LOX activity when, respectively, 2% iso-octane or 2% hexane was used as the organic solvent in comparison to that in the aqueous medium. The kinetic

APA, Harvard, Vancouver, ISO, and other styles

11

Ploetz, Christopher Daniel. "Micelles of polybutadiene-b-poly(ethylene oxide) in a binary solvent system." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8310.

Full text

Abstract:

Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Chemical and Biomolecular Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

12

Das, Koyeli. "Physicochemical investigation of assorted interactions of some imperative compounds with the manifestation of solvation effects prevalent in diverse solvent systems." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2684.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Onwukamike, Kelechukwu Nnabuike. "Sustainable cellulose solubilization, regeneration and derivatization in a DBU-CO2 switchable solvent system." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0016/document.

Full text

Abstract:

Source de carbone la plus abondante du règne végétal et non concurrentielle de la chaîne alimentaire, la cellulose est une alternative aux ressources fossiles crédible pour le développement de nouveaux matériaux polymères. Néanmoins, à ce jour, les nombreux travaux décrits dans la littérature et visant la valorisation et la modification chimique de ce biopolymère fascinant ne répondent pas suffisamment, ou tout au moins que très partiellement, aux critères de durabilité. Pour répondre à ces critères de développement durable, le caractère renouvelable de la cellulose et les concepts de procédés

APA, Harvard, Vancouver, ISO, and other styles

14

Panczer, Robert John. "Soil Remediation using Solvent Extraction with Hydrodehalogenation and Hydrogenation in a Semicontinuous System." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5092.

Full text

Abstract:

The objective of this thesis is to aid in the development of Remedial Extraction And Catalytic Hydrodehalogenation (REACH), a green remediation technology used to remove and destroy halogenated hydrophobic organic compounds from soil. REACH has no secondary waste streams, uses an environmentally benign solvent, and aims to catalytically destroy rather than transfer the organic contaminants into a different phase. In this thesis, a bench-top semicontinuous model of the proposed remediation technology was constructed and used to extract the model contaminant, 1,2,4,5-tetrachlorobenzene, from soi

APA, Harvard, Vancouver, ISO, and other styles

15

Vázquez-Figueroa, Eduardo. "Development of a novel dehydrogenase and a stable cofactor regeneration system." Diss., Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31685.

Full text

Abstract:

The first goal of this work focused on the development of an amine dehydrogenase (AmDH) from a leucine dehydrogenase using site-directed mutagenesis. We aimed at reductively aminating a prochiral ketone to a chiral amine by using leucine dehydrogenase (LeuDH) as a starting template. This initial work was divided into two stages. The first focused mutagenesis to a specific residue (K68) that we know is key to developing the target functionality. Subsequently, mutagenesis focused on residues known to be in close proximity to a key region of the substrate (M65 and K68). This approach allowed

APA, Harvard, Vancouver, ISO, and other styles

16

Myatt, Matthew James. "Confocal microscopy of a ternary polymer system undergoing phase separation due to solvent loss." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619803.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Fullarton, Claire. "Working towards a new sustainable rechargeable battery : zinc, conducting polymer and deep eutectic solvent system." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31863.

Full text

Abstract:

Electronically conducting polymers based on functionalised thiophenes and pyrroles have continued to stimulate academic interest as well as starting to be employed in practical applications and uses. This thesis describes studies of the electronic properties of mixed thiophene-pyrrole polymers (based on custom synthesised mixed monomer precursors) and polymers electrodeposited from commercially available monomers, pyrrole and 3,4-ethylenedioxythiophene, in respect to energy storage applications including batteries and ion selective membranes. In such applications the movement of ion and solven

APA, Harvard, Vancouver, ISO, and other styles

18

Ray, Tanusree. "Exploration of assortment of interfaces of some lonik liquids in solvent system by physicochemical approach." Thesis, University of North Bengal, 2016. http://ir.nbu.ac.in/handle/123456789/2743.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Redha, Batul H. "Impact of mixed solvent on co-crystal solubility, ternary diagrams and crystallisation scale-up. Crystallisations of Isonicotinamide ¿Benzoic Acid Co-crystals from Ethanol ¿Water Co-solvent System." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5683.

Full text

Abstract:

The production of stable solid crystalline material is an important issue in the pharmaceutical industry and the challenge to control the desired active pharmaceutical ingredient (API) with the specific chemical and physical properties has led to more development in the drug industry. Increasing the solubility and the dissolution of the drug will increase its bioavailability; therefore the solubility can be improved with the change in the preparation method. The formation of co-crystals has emerged as a new alternate to the salts, hydrates and solvate methods since the molecules that cannot be

APA, Harvard, Vancouver, ISO, and other styles

20

Chandra, Alind. "THERMODYNAMIC MODELING AND EQUILIBRIUM SYSTEM DESIGN OF A SOLVENT EXTRACTION PROCESS FOR DILUTE RARE EARTH SOLUTIONS." UKnowledge, 2019. https://uknowledge.uky.edu/mng_etds/53.

Full text

Abstract:

Rare earth elements (REEs) are a group of 15 elements in the lanthanide series along with scandium and yttrium. They are often grouped together because of their similar chemical properties. As a result of their increased application in advanced technologies and electronics including electric vehicles, the demand of REEs and other critical elements has increased in recent decades and is expected to significantly grow over the next decade. As the majority of REEs are produced and utilized within the manufacturing industry in China, concerns over future supplies to support national defense techno

APA, Harvard, Vancouver, ISO, and other styles

21

Korehei, Reza. "Effect of non-solvent on viscoelastic and microstructural properties of cellulose acetate in a ternary system." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32881.

Full text

Abstract:

In this study, the effects of component composition on rheological and microstructural behaviour of a ternary of cellulose acetate (CA), N,N-dimethylacetamide (DMAc) and non-solvent (1-Propanol, 2-Propanol, 1-Hexanol, 1-Octanol, 1-Decanol, 1,2-Ethanediol, 1,2-Propanediol, 1,3-Propanediol, 1,4-Butanediol, 1,6-Hexanediol, Glycerol) system was examined. In this ternary system, physical gel formation can arise as a result of phase separation, which is characterized by the observation of a gradual to extreme cloudiness in the system. Depending on the non-solvent concentration, structure and polyme

APA, Harvard, Vancouver, ISO, and other styles

22

Collins, Micahel M. (Michael Matthew). "Design of a sequential in-situ anaerobic/aerobic enhanced bioremedication system for a chlorinated solvent contaminated plume." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40163.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Orejuela, Lourdes Magdalena. "Lignocellulose deconstruction using glyceline and a chelator-mediated Fenton system." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/81255.

Full text

Abstract:

Non-edible plant biomass (lignocellulose) is a valuable precursor for liquid biofuels, through the processes of pretreatment and saccharification followed by fermentation into products such as ethanol or butanol. However, it is difficult to gain access to the fermentable sugars in lignocellulose, and this problem is principally associated with limited enzyme accessibility. Hence, biomass pretreatments that destroy native cell wall structure and allows enzyme access are required for effective biomass conversion techniques. This research studied two novel pretreatment methods on two wood species

APA, Harvard, Vancouver, ISO, and other styles

24

Kabangu, Mpinga John. "Extraction and separation of tantalum and niobium from Mozambican tantalite by solvent extraction in the ammonium bifluoride-octanol system." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/25313.

Full text

Abstract:

The principal aim of this research was to determine the optimum conditions of extraction and separation of niobium and tantalum with octanol as solvent, from Mozambican tantalite using ammonium bifluoride as an alternative to hydrofluoric acid. The extraction of niobium and tantalum from tantalite can be divided into three activities, viz., acid treatment of the ore to bring the niobium and tantalum values into solution, separation of niobium and tantalum by solvent extraction and preparation of pure niobium pentoxide and tantalum pentoxide by precipitation followed by calcination. An initial

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Liqin. "A new liquid-liquid partitioning system for bioseparations at low temperatures." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1184618209.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Garikipati, Satya Venkata Bhaskara Janardhan. "Biocatalysis for oxidation of naphthalene to 1-naphthol: liquid-liquid biphasic systems and solvent tolerant strains." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/237.

Full text

Abstract:

Biocatalysis involves the use of enzymes to perform stereo- and enantio-specific reactions. One of the reactions where biocatalysis is a valuable technology is oxidation of naphthalene to 1-naphthol using Toluene ortho-Monooxygenase (TOM) variant TmoA3 V106A, also known as TOM-Green. Whole-cell biocatalysis in a water-organic solvent biphasic system was used to minimize naphthalene and 1-naphthol toxicity, and to increase substrate loading. Recombinant Escherichia coli TG1 cells expressing TOM-Green were used for biphasic biocatalysis and lauryl acetate gave best results among the solvents tes

APA, Harvard, Vancouver, ISO, and other styles

27

Li, Guang-Shan. "Development of a reporter system for the study of gene expression for solvent production in Clostridium beijerinckii NRRL B592 and Clostridium acetobutylicum ATCC 824." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/29439.

Full text

Abstract:

Development of a reporter system for the study of gene expression for solvent production in Clostridium beijerinckii NRRL B592 and Clostridium acetobutylicum ATCC 824 By Guang-Shan Li (Abstract) To study the regulation of gene expression, a good reporter system is very useful. The lack of a good reporter system for the solvent-producing clostridia hindered the progress of research in this area. The objective of this study was to develop a reporter system to facilitate the elucidation of the control mechanism for the expression of solvent-producing genes. A potential re

APA, Harvard, Vancouver, ISO, and other styles

28

Barman, Biraj Kumar. "Investigation of diverse interactions and inclusion complexation in different environment by physicochemical methodology." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2622.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Brahma, Aischarya [Verfasser]. "Exploration of the potential of the hydroxynitrile lyase from Arabidopsis thaliana in a micro-aqueous organic solvent system / Aischarya Brahma." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1111774250/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Morgado, Daniella Lury. "Biocompósitos a partir de celulose de linter: filmes de acetatos de celulose/celulose e quitosana/celulose." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-25022010-152850/.

Full text

Abstract:

O presente trabalho visou o estudo da modificação química da celulose de linter (obtida de fonte de rápido crescimento e considerada a celulose de maior pureza isolada de fontes vegetais) através da sua derivatização em meio homogêneo, buscando-se a obtenção de materiais com características bem definidas e via um método que apresente boa reprodutibilidade. Dentre os derivados de celulose, os acetatos têm importância industrial significativa. No presente trabalho, acetatos de celulose obtidos no sistema de solvente cloreto de lítio/dimetilacetamida (LiCl/DMAc), com diferentes graus de substitu

APA, Harvard, Vancouver, ISO, and other styles

31

Werle, Stefanie Bressan. "AVALIAÇÃO DA EVAPORAÇÃO DO SOLVENTE DE SISTEMAS ADESIVOS CONTEMPORÂNEOS." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/6096.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Objectives: The aim of this study was to evaluate the effect of air-drying time on degree of evaporation of solvent (DE), microtensile resin-dentin bond strength (μTBS) and degree of conversion (DC) of adhesive systems. Methods: Four two-steps etch-and-rinse (Adper Single Bond 2, XP Bond, Prime & Bond 2.1 and Opti Bond Solo) and one one-step self-etch (Adper Easy One) were tested. The DE was measured gravimetrically (n=6) after 3, 5, 10, 20, 30 and 60 seconds by air-drying. For μTBS flat dentin surfaces were obtained from fifty car

APA, Harvard, Vancouver, ISO, and other styles

32

Onwukamike, Kelechukwu Nnabuike [Verfasser], M. A. R. [Akademischer Betreuer] Meier, and H. [Akademischer Betreuer] Cramail. "Sustainable Cellulose Solubilization, Regeneration and Derivatization in a DBU-CO$_2}$ Switchable Solvent System / Kelechukwu Nnabuike Onwukamike ; Betreuer: M.A.R. Meier, H. Cramail." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1181190525/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Husson, Éric. "Synthèse de dérivés fonctionnels de petits peptides par voie enzymatique." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL061N/document.

Full text

Abstract:

Ce travail a consisté à étudier la N et/ou O acylation enzymatique d’alcool aminés et de dipeptides.Une étude préliminaire consacrée à l’acylation enzymatique d’une molécule modèle, le 6-amino-1-hexanol a démontré la capacité de la lipase B de Candida antarctica immobilisée à catalyser l’acylation de ce substrat dans différents milieux réactionnels. La mise en œuvre de cette réaction en solvants organiques (hexane, 2-méthyl-2-butanol) a conduit à la formation du produit diacylé avec un rendement de 85 % montrant l’absence de chimio-sélectivité de la réaction. L’utilisation de système sans solv

APA, Harvard, Vancouver, ISO, and other styles

34

Oliveira, Samantha Sant'Anna Marotta de. "Preparação e caracterização in vitro de micropartículas de heparina fracionada potencialmente aplicáveis ao tratamento da trombose venosa profunda." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/60/60137/tde-30042009-143701/.

Full text

Abstract:

A trombose venosa profunda (TVP) é uma patologia grave de alta incidência mundial. Quando não diagnosticada precocemente e tratada adequadamente pode evoluir causando sérias complicações, como a embolia pulmonar e insuficiência venosa crônica, as quais são responsáveis por altas taxas de morbidade e mortalidade. Seu tratamento utiliza terapia com anticoagulantes pelas vias parenteral e oral (para manutenção) que estão associadas a prejuízos bem documentados limitando seu uso, além de resultar em baixa adesão do paciente ao tratamento. Os sistemas de liberação modificada de fármacos, tais como

APA, Harvard, Vancouver, ISO, and other styles

35

Makaka, Siphokazi. "The development of an empirical mass transfer relationship for the extraction of copper ions in a carrier facilitated tubular supported liquid membrane system." Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/866.

Full text

Abstract:

Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Chemical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2011<br>Treatment of waste material from mining and mineral processing is gaining increasing importance as a result of the increasing demand for high purity products and environmental concerns. Supported liquid membranes (SLMs) have been proposed as a new technology for the selective removal of metal ions from a solution. This technology can be described as the simultaneous extraction and stripping operation, c

APA, Harvard, Vancouver, ISO, and other styles

36

Ballentine, Michael Drake. "Imidazolium Ionic Liquids as Multifunctional Solvents, Ligands, and Reducing Agents for Noble Metal Deposition onto Well-Defined Heterostructures and the Effect of Synthetic History on Catalytic Performance." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2101.

Full text

Abstract:

1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM]Tf2N) was investigated as a multifunctional solvent, ligand, and reducing agent for platinum deposition onto well-defined CdSe@CdS nanorods. Platinum deposition was carried out thermally and photochemically using Pt(acac)2 as the metal precursor. Thermal deposition was investigated in [BMIM]Tf2N with and without addition of a sacrificial reducing agent, and product topology was compared with the products obtained from polyol reduction using 1,2-hexadecanediol, oleic acid, and oleylamine in diphenyl ether. Photochemically indu

APA, Harvard, Vancouver, ISO, and other styles

37

Dakua, Vikas Kumar. "Physico-chemical studies on interactions between ion-solvent, ion-ion and solvent-solvent in aqueous and non-aqueous pure and mixed solvent systems." Thesis, University of North Bengal, 2008. http://hdl.handle.net/123456789/707.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Khalid, Muhammad. "Influence of solvent viscosity, polarity and polarizability on the chemiluminescence parameters of inter and intramolecular electron transfer initiated chemiexcitation systems." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-29092015-114251/.

Full text

Abstract:

The cyclic peroxides: diphenoyl peroxide (1), spiro-adamantyl-1,2-dioxetanone (2) and 4-(3-tert-butyldimethylsilyloxyphenyl)-4-methoxyspiro[1.2-dioxetane-3.2\'-adamantane] (3) synthesized, purified and characterized, also their kinetic and chemiluminescence (CL) properties were determined. The influence of solvent polarity on the chemiexcitation parameters of the catalyzed decomposition of 1 and 2, as well as the induced decomposition of 3 were examined in several binary solvent mixtures with different polarity and polarizability parameters, but similar viscosities. For solvents with low polar

APA, Harvard, Vancouver, ISO, and other styles

39

Henneman, Richard Lewis. "Human problem solving in complex hierarchical large scale systems." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/25432.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Smith, Jill Yvonne. "Communication Quality in Information Systems Development: The Effect of Computer-Mediated Communication on Task-Oriented Problem Solving." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc331600/.

Full text

Abstract:

The problem motivating this research is that ineffective communication may hamper systems development efforts. Specifically germane to this study are development efforts characterized as task-oriented, and which require information-sharing and problem-solving activities. This research problem motivated an analysis of the communication process and lead to the development of a temporal framework that delineates variables associated with task-oriented, end user/systems analyst communication interactions. Several variables within this framework are depicted in two theoretical models. The first mo

APA, Harvard, Vancouver, ISO, and other styles

41

Brindle, David. "Lattice models of amphiphile and solvent mixtures." Thesis, Sheffield Hallam University, 1991. http://shura.shu.ac.uk/19397/.

Full text

Abstract:

Materials based on amphiphilic molecules have a wide range of industrial applications and are of fundamental importance in the structure of many biological systems. Their importance derives from their behaviour as surface-active agents in solubilization applications and because of their ability to form systems with varying degrees of structural order such as micelles, bilayers and liquid crystal phases. The nature of the molecular ordering is of importance both during the processing of these materials and in their final application. A Monte Carlo simulation of a three dimensional lattice model

APA, Harvard, Vancouver, ISO, and other styles

42

Lago, Cristiana da Costa Libório. "Avaliação da influência do tempo de abertura dos frascos de sistemas adesivos na microinfiltração marginal em cavidades de classe V de dentes restaurados com resina composta." Programa de Pós- Graduação em Odontologia da UFBA, 2006. http://www.repositorio.ufba.br/ri/handle/ri/10510.

Full text

Abstract:

Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-04-23T15:55:38Z No. of bitstreams: 1 Dissertação Cristiana Lago.pdf: 2446481 bytes, checksum: c965a72c0cf3e50211e14ec8283d42e5 (MD5)<br>Approved for entry into archive by Rodrigo Meirelles(rodrigomei@ufba.br) on 2013-05-08T11:45:33Z (GMT) No. of bitstreams: 1 Dissertação Cristiana Lago.pdf: 2446481 bytes, checksum: c965a72c0cf3e50211e14ec8283d42e5 (MD5)<br>Made available in DSpace on 2013-05-08T11:45:33Z (GMT). No. of bitstreams: 1 Dissertação Cristiana Lago.pdf: 2446481 bytes, checksum: c965a72c0cf3e50211e14ec8283d42e5 (MD5) Previous

APA, Harvard, Vancouver, ISO, and other styles

43

Cheng, Chin-Hwa 1957. "Solubility of diuron in complex solvent systems." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277194.

Full text

Abstract:

The solubility of diuron was determined in binary and ternary cosolvent-water systems. The binary systems were composed of a completely miscible organic solvent (CMOS) and water while the ternary systems incorporate partially miscible organic solvents (PMOS) into the binary systems. Due to the low aqueous solubilities of trichloroethylene and toluene, the PMOS's do not behave as cosolvents and they do not play an important role in altering solubility.

APA, Harvard, Vancouver, ISO, and other styles

44

Pinheiro, Carolina Tavares. "Characterization of lubricant oils and regeneration studies by green solvent extraction." Doctoral thesis, 2018. http://hdl.handle.net/10316/80616.

Full text

Abstract:

Tese de doutoramento em Engenharia Química, apresentada ao Departamento de Engenharia Química da Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>Waste lubricant oil (WLO) is the most significant liquid hazardous waste stream in Europe that requires proper handling and treatment. Regeneration is an interesting treatment route to mitigate the significant environmental impacts of lubricants. Solvent extraction is one of the most effective deasphalting processes for the regeneration of WLO. The current objectives towards a circular economy represent a challenge to continuously m

APA, Harvard, Vancouver, ISO, and other styles

45

Lai, Su-Huei, and 賴素慧. "A study on the phase separation behavior of the DLPLA-Solvent-Non-Solvent System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10950040576437582076.

Full text

Abstract:

碩士<br>國立陽明大學<br>醫學工程研究所<br>93<br>Due to its superior properties of biocompatibility and biodegradability, polylactide has been widely used in the preparations of cellular scaffolds, drug carriers, and polymer film. Literature reviews indicate that porous structure of polylactide mainly caused by the liquid-liquid demixing of the solidification process. This study constructs the phase diagrams of DL-PLA-Solvent-Non-solvent ternary systems to explore the behavior of phase separation by tuning temperature, solvent and nonsolvent. Theoretical liquid-liquid demixing gap based on model proposed by Y

APA, Harvard, Vancouver, ISO, and other styles

46

Li, Kang-Fang, and 李耿芳. "Development of the solvent based slurry stereolithography rapid prototyping system." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/n9z2yq.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>機電整合研究所<br>98<br>The purpose of the study is to develop a Solvent based Slurry Stereolithography (3S) Rapid Prototyping System. This system is applying dynamic mask to form a ceramic part for the requirement of high strength and accuracy. The approach of the innovative process is adding solvent into photopolymer and ceramic powder to become very low viscosity slurry. The low viscosity slurry can provide a good coating ability while adding a new thin layer. Also, the solvent will be vaporized within a short time after the recoating process. The capillary force will help new la

APA, Harvard, Vancouver, ISO, and other styles

47

Liu, You-Feng, and 劉有峰. "Vapor-Liquid Equilibrium for Ternary System CO2 + H2 + Organic Solvent." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/72367484569520438594.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Cheng, Sheng Hsing, and 鄭勝祥. "Solvent Effect on the Miscibility of Polymer Blend:PVAc-PEO System." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/16509935595477938400.

Full text

Abstract:

碩士<br>中國文化大學<br>造紙印刷研究所<br>85<br>The miscibility of the poly(vinyl acetate) and poly( ethylene) blends hasbeen studied using the solvent casting method.Fine solvents of benzene,toluene,acetone,methyl alcohol, cycloheaxanone were used.The glass transition and melt-ing temperature of the crystalline-amorphous blends were measured by differentscanning calorimeter(DSC).It is shown that the blends of various compositionsare miscible in their molten state. The Flory-Huggins interaction parameters

APA, Harvard, Vancouver, ISO, and other styles

49

ZHANG, CAN-JIN, and 張燦金. "The manufacture of polyvinyl alcohol fiber with organic solvent system." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/64685205988209443637.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Lan, Chang-Feng, and 藍長風. "Entropy configuration of amino acid solvent system with Voronoi cell distribution." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/52903080046819052241.

Full text

Abstract:

碩士<br>國立中興大學<br>化學系所<br>104<br>To understand the physical behavior of solvent system in microscopic structure, such as amino acids in aqueous solution, the Voronoi tessellation method was employed to analyze space distribution of solvent surrounding the solute. The Voronoi polyhedra can be constructed through Delaunay simplexes. In our analysis, each non-hydrogen atom is treated as an independent element and a space-dependent factor is introduced for every element. In an equilibrium homogenous system, each Voronoi polyhedron is not identical but should have same average factor which is treated

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!