Дисертації з теми "LIQUID MIXTURE"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "LIQUID MIXTURE".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Cabrera, Córdova César Raymundo. "Quantum liquid droplets in a mixture of Bose-Einstein condensates." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/663331.
Повний текст джерелаEn este trabajo de tesis se reporta el diseño y la construcción de uno de los experimentos pioneros en España que permite realizar simulaciones cuánticas usando átomos ultra fríos. En este experimento se enfrían hasta alcanzar la degeneración cuántica los tres diferentes isotopos de potasio los cuales permiten, de manera particular y original, el estudio de mezclas cuánticas degeneradas de tipo Bose-Bose o Bose-Fermi. El funcionamiento del experimento es validado por medio de la producción de condensados de Bose-Einstein de 41K y 39K. Además, se reporta la condensación de la mezcla degenerada 41K - 39K, la cual no había sido previamente reportada en la literatura. Estos resultados son los primeros de su tipo en España y por lo tanto abren un amplio panorama en el estudio de fenómenos cuánticos en el país. La mezcla cuántica reportada en esta tesis permite acceder a sistemas cuánticos novedosos en el campo de átomos fríos. El control de las interacciones atómicas es una herramienta ampliamente usada en el campo, por lo cual se han caracterizado las propiedades de dispersión en esta nueva mezcla, así como en diferentes mezclas de espín entre los isotopos 41K y 39K. El resultado más importante de esta tesis reside en la creación de un nuevo estado de la materia: una gota liquida cuántica ultra-diluida. Esta gota cuántica se compone de una mezcla de dos estados diferentes de espín de 39K. Este líquido se encuentra ligado por sí mismo debido a la compensación de las fuerzas atractivas de campo con el carácter repulsivo de efectos cuánticos que van más allá de la aproximación de campo medio. Este sistema sigue la idea original de D. Petrov, esta propone la formación de líquidos cuánticos usando mezclas de condensados de Bose-Einstein. En la primera serie de experimentos, hemos observado la formación de gotas cuánticas en un régimen donde una mezcla de Bose debería de colapsar de acuerdo con teorías de campo medio. Se ha medido su tamaño y ultra-baja densidad por medio de imágenes in situ. De esta manera confirma cómo este líquido permanece ligado por si mismo en la ausencia de confinamiento externo. Hemos demostrado que la existencia de estas gotas cuánticas se debe a una manifestación sorprendente de las fluctuaciones cuánticas. Finalmente hemos observado cómo debido a la presencia de la presión cuántica, debajo de un numero critico de átomos el sistema se disocia en gas dando lugar a una transición cuántica liquido-gas. Esta transición se ha medido experimentalmente como función de las interacciones atómicas entre los átomos. Estas mediciones traen consigo una pregunta intrigante: ¿Cuál es la diferencia entre nuestras gotas cuánticas y los ya conocidos solitones de materia? En una segunda serie de experimentos, hemos dado respuesta a esta interrogante al estudiar las propiedades de una mezcla de Bose confinada en una guía óptica. En este tipo de geometría ambos estados pueden existir. En analogía a sistemas ópticos no-lineales, solitones son sistemas estabilizados por efectos de dispersión, mientras las gotas cuánticas corresponden a solitones de más alta dimensión estabilizadas por efectos no lineales de alto orden. Hemos encontrado que, dependiendo del número de átomos, fuerza de interacción y confinamiento, solitones y gotas cuánticas son dos estados cuánticos que pueden estar conectados, permanecer como dos estados distintos, o coexistir en una región de bi-estabilidad. Se ha medido su composición de espín, densidad del sistema y encontrado experimentalmente la frontera que separa ambos sistemas. En conclusión, los experimentos mostrados en esta tesis demuestran la existencia de un nuevo liquido cuántico ultra-diluido estabilizado únicamente por interacciones de contacto. Su existencia es puramente debida a las fluctuaciones cuánticas presentes en el sistema. Este sistema provee una plataforma ideal para el estudio y la comprensión de teorías cuánticas más complejas las cuales van más allá de la aproximación de campo medio.
Chakrabarti, Dwaipayan. "Slow Dynamics In Soft Condensed Matter : From Supercooled Liquids To Thermotropic Liquid Crystals." Thesis, Indian Institute of Science, 2006. https://etd.iisc.ac.in/handle/2005/292.
Повний текст джерелаChakrabarti, Dwaipayan. "Slow Dynamics In Soft Condensed Matter : From Supercooled Liquids To Thermotropic Liquid Crystals." Thesis, Indian Institute of Science, 2006. http://hdl.handle.net/2005/292.
Повний текст джерелаIvanov, Dimitry A. "Investigation of a ternary liquid mixture by the light scattering technique." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=98015216X.
Повний текст джерелаBastos, Pedro David Anastácio de. "Separation of azeotropic mixtures using high ionicity ionic liquids." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12208.
Повний текст джерелаBribesh, Fathi. "Free surface films of binary liquid mixtures." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/9810.
Повний текст джерелаWhite, Garry. "A new adsorbent mixture for the collection of common ignitable liquid residue vapour." Thesis, Anglia Ruskin University, 2014. http://arro.anglia.ac.uk/700895/.
Повний текст джерелаWhite, Garry. "A New Adsorbent Mixture for the Collection of Common Ignitable Liquid Residue Vapour." Thesis, Anglia Ruskin University, 2014. https://arro.anglia.ac.uk/id/eprint/700895/1/White_Thesis_2014.pdf.
Повний текст джерелаAlahmad, Malik I. N. "Heat transfer in upward flowing two-phase gas-liquid mixtures : an experimental study of heat transfer in two-phase gas-liquid mixtures flowing upwards in a vertical tube with liquid phase being driven by a pump or air injection." Thesis, University of Bradford, 1987. http://hdl.handle.net/10454/3629.
Повний текст джерелаTurner, Robert Paul. "Pumping helium 3 in a helium mixture with a magnetic field : thermal boundary resistance between liquid helium mixtures and silver sinters." Thesis, Lancaster University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242945.
Повний текст джерелаMohamed, Hmza Ashour. "Radiation Heat Transfer Analysis in Two-Phase Mixture Associated with Liquid Metal Reactor Accidents." University of Dayton / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1588950530150298.
Повний текст джерелаZhang, Lin. "Photoelectrocatalytic CO2 conversion in ionic liquid/aqueous mixture solution studied by scanning electrochemical microscopy." Thesis, Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=http://theses-intra.upmc.fr/modules/resources/download/theses/2020SORUS122.pdf.
Повний текст джерелаThis thesis studies photoelectrochemical CO2 reduction reaction (PEC CO2RR) on p-type semiconductor CuCo2O4 addressing the cocatalytic role of imidazolium based RTILs by scanning photoelectrochemical microscopy (SPECM). CuCo2O4 was studied in different solvent supporting electrolyte systems including: aqueous solution (0.1 M KHCO3 and 0.1 M Na2SO4), binary mixture solution (25 vol.% [C2mim][BF4]/H2O and 25 vol.% [C4mim][BF4]/H2O) and pure RTILs ([C2mim][BF4], [C4mim][BF4]) to explore by SPECM the role of RTILs in CuCo2O4 semiconductor PEC performance. Significantly enhanced photoreduction current under both UV-vis and visible light illumination is reported in 25 vol.% [C2mim][BF4]/H2O solution. Only CO generated from PEC CO2RR was detected using an in-situ detection method based on a home-made dual tip optical fiber-ultramicroelectrode (OF-UME) and from bulk electrolysis under illumination. The formation of CO at potentials more positive than the thermodynamic value clearly points out that direct CO2 reduction on the electrode surface is not the mechanism. A possible reaction scheme for the PEC CO2RR mediated by [C2mim]+ is proposed. Thus, our results have demonstrated for the first time the cocatalytic role of [C2mim]+ for the PEC CO2RR. In addition, electrochemical CO2RR has also been studied on various synthesized transition metal–nitrogen–carbon catalysts (M–N–Cs) by rotating disk electrode. 25%Fe25%Co–N–C exhibited the best performance among the studied M–N–Cs in this thesis. The presence of Co sites in that catalyst provided synergic effect for the generation of distributed Fe-rich microcubes, which act as active sites in electrochemical CO2RR
Sans, Amanda Dzintra. "TRANSFERABLE STEP-POTENTIALS FOR HALOGENATED HYDROCARBONS AND MIXTURE PREDICTIONS FROM SPEADMD." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1161032534.
Повний текст джерелаGuenoun, Patrick. "Instabilite des melanges de fluides : influence des forces de pesanteur et de mouillage." Paris 6, 1987. http://www.theses.fr/1987PA066127.
Повний текст джерелаWang, Yunli. "Mass Spectrum Analysis of a Substance Sample Placed into Liquid Solution." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/28881.
Повний текст джерелаLuna, Fabio. "Drying of Multicomponent Liquid Films." Doctoral thesis, KTH, Chemical Engineering and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3778.
Повний текст джерелаThe convective drying of thin layers of multicomponentliquid mixtures into an inert gas, and the influence ofdifferent process controlling mechanisms on drying selectivityis studied. Drying experiments under gas-phase-controlledconditions are performed by low intensity evaporation, fromfree liquid surfaces, of ternary mixtures without non-volatilesolutes. Liquid-side-controlled experiments are carried out bydrying a multicomponent polymeric solution containing twovolatile components, one non-volatile polymer and an optionalnonvolatile softening substance.
Mathematical models to describe gas- andliquid-side-controlled drying based on interactive diffusion inboth liquid and gas phases as the main mechanisms for masstransfer are developed. For gas-phase-controlled drying, astability analysis of the ordinary differential equations thatdescribes the evaporation process is performed. Isothermal andnon-isothermal drying processes are considered in batch andcontinuous modes. The mathematical model to describe thecomposition profiles during batch drying of the polymeric film,considering liquid resistance, is solved numerically. Due tothe lack of experimental data, properties for this polymericsystem are estimated by using established methods. Ananalytical solution of the diffusion equation, by assuming anisothermal drying process and a constant matrix ofmulticomponent diffusion coefficients is developed. For thecontinuous case, liquid-side resistance is studied by modellingevaporation of a multicomponent falling liquid film into aninert gas including indirect heating.
The results of the gas-phase-controlled model are in goodagreement with experimental results. For the polymeric film,the agreement is only qualitative since the model does notaccount for a membrane that develops on the film surface. Thestability analysis permits the prediction of trajectories andfinal state of a liquid mixture in a gas-phase-controlleddrying process. For isothermal evaporation of ternary mixturesinto pure gas, the solutions are trajectories in the phaseplane represented by a triangular diagram of compositions. Thepredicted ternary dynamic azeotropic points are unstable orsaddle. On the other hand, binary azeotropes are stable whenthe combination of the selectivities of the correspondingcomponents is negative. In addition, pure component singularpoints are stable when they are contained within theirrespective isolated negative selectivity zones. Undernon-isothermal conditions, maximum temperature valuescharacterise stable azeotropes. Incremental loading of the gaswith one or more of the components leads to a node-saddlebifurcation, where a saddle azeotrope and a stable azeotropecoalesce and disappear. For continuous drying, the singularpoints are infinite and represent dynamic equilibrium pointswhose stability is mainly dependent on the ratio of inletgas-to-liquid flow rates. As long as the process isgas-phasecontrolled, these results also apply to a porous solidcontaining a liquid mixture.
In general, liquid-side control makes the drying processless selective but it is difficult to maintain this conditionduring the whole process. Under the influence of its owndynamics, a process starting as liquid-side-controlled tendstowards a gas-phase-controlled process. The presence ofnon-volatile components and indirect heating may delay thisdevelopment. Considering the evolution of the processcontrolling steps and its influence on selectivity, a modelaimed at describing the complete trajectory of a drying orevaporation process must include the coexistence of allrelevant mechanisms.
Keywords:ternary mixture, falling film, diffusionequation, gas-phase control, liquid-phase control, selectivity,stability analysis, polymeric solution, evaporation, azeotrope,batch drying, continuous drying.
Khalaf, Wadad Ghazi Dunia. "Effect of fluid viscosity and electrical conductivity on the ohmic heating rate of a solid-liquid mixture." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1298902428.
Повний текст джерелаMoon, Go Young. "Synthesis and preparation of polysaccharide based membranes for the pervaporation separation of liquid mixture systems of industrial interest." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60558.pdf.
Повний текст джерелаShin, Younggy. "Liquid fuel behavior in the mixture preparation process during starting and warm-up in a spark ignition engine." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10919.
Повний текст джерелаFujimoto, Hitoshi. "Flow fields of air-liquid droplet two-phase mixture and collision dynamics of a droplet on a surface." Kyoto University, 1995. http://hdl.handle.net/2433/160775.
Повний текст джерелаKyoto University (京都大学)
0048
新制・論文博士
博士(工学)
乙第8868号
論工博第2977号
新制||工||996(附属図書館)
UT51-95-D461
(主査)教授 八田 夏夫, 教授 鈴木 健二郎, 教授 赤松 映明
学位規則第4条第2項該当
Lee, Joshua. "Experimental Analysis on the Effects of Superficial Liquid and Gas Velocities in the Removal of Hydrogen Sulfide From a Brine/Oil Mixture." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2137.
Повний текст джерелаM.S.M.E.
Department of Mechanical, Materials and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering MSME
Khan, Nazmul. "Sparse Lagrangian MMC-LES Combustion Modelling of Liquid Sprays." Thesis, The University of Sydney, 2017. https://vuir.vu.edu.au/39312/.
Повний текст джерелаPallewela, Gayani Nadeera. "Theory and simulation of liquids and liquid mixtures." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32495.
Повний текст джерелаDepartment of Chemistry
Paul E. Smith
Kirkwood Buff (KB) theory is one of the most important theories of solutions. The theory can relate integrals over radial (pair) distribution functions (rdfs) in the grand canonical ensemble to common thermodynamic properties. An inversion of the KB theory has been proposed by Ben-Naim and this has led to the wide spread popularity of KB theory. The idea of the KB inversion procedure is to calculate KB integrals from available thermodynamic properties. The KB theory can be used to validate the force field (ff) parameters used in molecular dynamics simulations. We have tested a series of small molecule ff parameters using KB theory that consists of both atom centered partial atomic charges and extra charge sites. The results indicate that using extra charge sites, derived from QM calculations, does not necessarily provide a more accurate representation of condensed phase properties. A further study aimed at an ongoing project of deriving new biomolecular ff parameters based on KB theory, has developed ff parameters for esters in order to represent the ester conjugation of the phospholipid molecule. The models were further tested against experimental properties. Preferential solvation (PS) is an important concept of solution mixtures that can be described using KB theory. The difference between local composition and bulk composition in solution mixtures leads to the concept of PS. A generalized explanation based on local mole fractions was derived by Ben-Naim using KB theory. However, the original expressions have been modified over years. Here, we propose a new approach based on local volume fractions to explore PS in binary and ternary solution mixtures. Experimental and simulation data were used to examine different approaches to PS. A relationship between the rdf and the triplet distribution function can be obtained using the Kirkwood Superposition Approximation (KSA). A combination of Fluctuation Solution Theory and experimental rdfs are used to examine the KSA at a series of state points for pure water. The accuracy of several other approximate relationships between the pair and triplet correlation functions was also investigated and are in good agreement for regions of the phase diagram where the compressibility is small.
Gamero, Rafael. "Transport Coefficients during Drying of Solids containing Multicomponent Mixtures." Doctoral thesis, KTH, Teknisk strömningslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28897.
Повний текст джерелаQC 20110124
Foster, Paul J. "Continuous Co-Separation by Liquid Absorption in Aqueous Cuprous Chloride (CuCl) and Magnesium Chloride (MgCl2) Solution." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1789.pdf.
Повний текст джерелаLiao, Chaqing. "Gas ejector modeling for design and analysis." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3206.
Повний текст джерелаAllan, Juliet N. McClatchey. "The prediction of the viscosity of liquids and liquid mixtures." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/11891.
Повний текст джерелаPaudel, Liladhar. "High Field 1H Nuclear Magnetic Resonance (NMR) Spectroscopy Based Metabolomics and Complex Mixture Analysis by Multidimensional NMR and Liquid Chromatography-Mass Spectrometry (LC-MS)." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1343403647.
Повний текст джерелаKamonpatana, Pitiya. "MATHEMATICAL MODELING AND MICROBIOLOGICAL VERIFICATION OF OHMIC HEATING OF SOLID-LIQUID MIXURES IN CONTINUOUS FLOW OHMIC HEATER SYSTEMS." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343490087.
Повний текст джерелаHimpsl, Andreas [Verfasser], Andreas [Akademischer Betreuer] Ulrich, Andreas [Gutachter] Ulrich, and Lothar [Gutachter] Oberauer. "Particle & Energy Dependence of the Near-Infrared to Vacuum-Ultraviolet Scintillation Ratio of a Liquid Argon-Xenon Mixture / Andreas Himpsl ; Gutachter: Andreas Ulrich, Lothar Oberauer ; Betreuer: Andreas Ulrich." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/116372873X/34.
Повний текст джерелаWaisberg, Jonatan Alexandre Hertel. "Elaboração de regra de mistura para estimativa de viscosidade dinâmica de mistura binária homogênea líquida." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-12122016-143336/.
Повний текст джерелаIn this work, a mixing rule to estimate the viscosity of a mixture of two liquids from the viscosities of the pure liquids is presented. The most important feature of this mixing rule is its predictive character, i.e., it does not depend on the experimental determination of the mixture viscosity. This mixing rule is developed from a generalized rule applied for ideal mixtures, in which the property is averaged from those of the pure compounds by introducing an alternative weighting factor to replace the molar or mass fractions. This weighing factor is derived from a local composition reasoning, with simplifying considerations on the volume and surface area of the molecules that constitute the mixture. The developed mixing rule was compared to other predictive models (UNIFAC-VISCO, ASOG-VISCO) to predict the viscosity of liquid mixtures. The developed mixing rule resulted in a best prediction of the mixture viscosity, and could be applied (with minor changes introduced) to aqueous mixtures, which could not be adequately treated by other models.
Lopez, Diego Ruben Schmeda. "Separação de CO2 em gases de combustão : aplicação de membranas e criogenia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/24150.
Повний текст джерелаThe objective of this work is to evaluate the technical feasibility of carbon dioxide separation processes of flue gases streams. In this way, separation processes due membrane and cryogenics are evaluated by system simulation. The systems using membranes evaluates setup of those membranes in series, these setups are optimized for the largest permeate molar flow and the largest economic profit. The feed stream is a 5 kmol/s CO2 – N2 mixture, with molar fraction of 0.15 and 0.85 respectively. The result obtained from the optimization for a setup of three polyimide membranes of 9000 m² is a permeate stream of 443.1 mol/s with CO2 at 41.6%, corresponding to aproximadely 59% of the CO2 contained in the feed stream. When a setup of six 9000 m² membranes is analyzed using an objective function that results in the largest profit, kapton was selected as the material for the membranes. The quantity of CO2 captured is 161.12 mol/s, at 79% of concentration in the mixture, and the objective function has a value of 24,405.30 €/year. The second part of this work, proposes and evaluates a cycle that takes the thermal availability of the regasification of liquid natural gas in advantage for CO2 liquefaction. The product of the cycle is liquid CO2, with a molar fraction of 0.94. The process is fed with a stream that comes from the stoichiometric combustion of 1 mol/s of methane, that stream is composed by 1 mol/s of CO2 and 7.52 mol/s of N2. The stream is then compressed up to the pressure of 4000 kPa and cooled down to 25 °C. After that a membrane concentrates the CO2 in one stream, which is again compressed and cooled down until the condensation of CO2 is achieved. Calculations of liquid – vapor are performed with the Peng- Robinson’s equations and the Van der Waals mixture rule using the software VRTherm. The molar flow rate of liquid CO2 obtained is of 0.3207 mol/s in the concentration mentioned before. The energy intensity of the process is of 1.135 kWh/kg of liquid CO2.
Mensah-Brown, Henry. "Thermal conductivity of liquid mixtures." Thesis, Imperial College London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362870.
Повний текст джерелаDI, LEO SIMONE. "SELECTIVE ASSEMBLY, PHASE TRANSITIONS AND MOLECULAR KINETICS OF DNA OLIGOMERS." Doctoral thesis, Università degli Studi di Milano, 2022. http://hdl.handle.net/2434/923222.
Повний текст джерелаPascual, Marc. "Etude hydrodynamique des mélanges binaires thermosensibles." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLS009.
Повний текст джерелаNanofluidics marks the emergence of promising new technologies for the production of blue energies. These renewable energies with low environmental impact harness the entropy of mixing of fresh and salt water, for example at the estuary of a river, to generate electricity. Diffusio-osmosis (which flow is associated with diffusiophoretic displacement) is a serious candidate for the generation of electric currents. This phenomenon stems from osmotic effects inside the nanopores of the membrane and its intensity is directly linked to the surface charge of the material. Waterionic liquid thermoresponsive binary mixtures are an alternative to rivers and oceans to generate a salt gradient. The monophasic or biphasic state of the mixture is controlled by temperature; in the present case the LCST nature of the fluid induces a demixing by heating. Our work focuses on the phase separation of the mixture in a microfluidic cavity, where we show that a confinement or temperature gradient is a precious help to selectively isolate the two phases. We also measure the intensity of diffusio-osmotic currents with these solutions of ionic liquids in single nanopores and multi-pore membranes
Hund-Huart, Muriel. "Etude des transferts interfaciaux en extraction liquide-liquide sous champ électrique." Paris, ENMP, 1988. http://tel.archives-ouvertes.fr/tel-00845221.
Повний текст джерелаBelghazi, Mourad. "Condensation d'un fluide pur et de mélanges zéotropes à l'extérieur d'un faisceau de tubes à surface améliorée." Université Joseph Fourier (Grenoble), 2001. http://www.theses.fr/2001GRE10055.
Повний текст джерелаStevar, M. S. P. "Dissolution dynamics of liquid/liquid binary mixtures in porous media." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/349974/.
Повний текст джерелаAl-Anzi, Hamdan. "Mass transfer characteristics of two-aqueous-phase liquid-liquid mixtures." Thesis, Aston University, 1998. http://publications.aston.ac.uk/9604/.
Повний текст джерелаchang, Hsiu-Ying, and 張綉英. "A Study on Liquid-Liquid Equilibria of Acrylic Monomer + Sec-Alcohol + Water Mixture System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/69961559858678768265.
Повний текст джерела明新科技大學
化學工程研究所
95
Liquid-liquid equilibrium (LLE) data for the systems water + 2-propanol + methyl methacrylate, butyl methacrylate or isobutyl methacrylate, water + 2-butanol + methyl methacrylate, butyl methacrylate or isobutyl methacrylate, and water + 2-pentanol + butyl methacrylate and isobutyl methacrylate were determined at atmospheric pressure over temperatures of 288.15 K and 318.15 K. The reliability of the experimental tie-line data was determined through the Othmer-Tobias and Bachman plots. The new LLE data were also compared with the values correlated by the NRTL and UNIQUAC models. Good quantitative agreement was obtained with these models. Overall average deviation values are below 0.0080.
SHILPA. "AUTOMATED SYSTEM FOR BOTTLE FILLING OF LIQUID MIXTURE USING PLC." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14757.
Повний текст джерела曾宗益. "A study on the Liquid-Liquid Equilibria of Acrylic Monomer + n-alkanol + Water Mixture Systems." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/11504831496278608419.
Повний текст джерела明新科技大學
化學工程研究所
96
Abstract Alcohols are widely used as co-emulsifiers in the emulsion polymerization of many acrylic resins. It is well known that the influences of the mutual solubility of co-emulsifiers and monomers in water on the results of emulsion polymerization are very large, including the critical micelle concentration (CMC) of emulsifiers, the emulsified nucleation mechanism, and the reaction kinetics, etc. In this thesis, we are interested in investigating the fundamental solubility properties of those co-emulsifiers and methacrylic monomers in water for the acrylic emulsion polymerization application. Liquid-liquid equilibrium (LLE) data for the systems water + (1-hexanol or 1-octanol) + methyl methacrylate, + butyl methacrylate, or + isobutyl methacrylate were determined at atmospheric pressure over temperatures of 288.15 K and 318.15 K. From these new LLE data, we can find that very small amounts of the organic compounds were found in the aqueous phase, while water dissolved appreciably in the organic-rich phase. The reliability of the experimental tie-line data was determined through the Othmer-Tobias and Bachman plots. The experimental data were also compared with the values correlated by the NRTL and UNIQUAC models. Good quantitative agreement was obtained with these models. In general, the average deviations from the UNIQUAC model are slightly smaller than those from the NRTL model.
Lee, Tsai-Feng, and 李茞玢. "Study of Heat Capacity of Binary Liquid Mixture with Polymer." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/86266443702947417994.
Повний текст джерела國立東華大學
應用物理研究所
96
Our goal is to study the change of a binary mixture system within polymers. In experiments, we measure the heat capacity of 2,6-lutidine with water by TAM, and the critical exponent of heat capacity is found to be 0.09. When we put the PAA into the mixed solvent, and a becomes very small. In computer simulations, we find out that the critical exponent nu of Ising systems with polymers become 0.44, independent of the polymer concentration and polymer length. From the simulation results we find that in Ising systems with polymers is smaller than that in pure Ising system. We also find that the critical temperature increases linearly with polymer concentration.
JIAN, ZHI-HONG, and 簡志宏. "Unsteady binary liquid mixture natural convection in a square enclosure." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/64895771807329440877.
Повний текст джерелаLin, Ruo-Yu, and 林若彧. "Physical and Device Characteristics of a Binary Liquid-Crystal Mixture." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/24855481456611251197.
Повний текст джерела中原大學
物理研究所
98
This research focuses on physical properties of binary mixtures containing a major positive liquid crystal and a minor negative one. The physical characteristics investigated include the phase-transition temperature, birefringence, dielectric anisotropy, and the rotational viscosity. In addition, the response times of the devices made of various mixtures with distinct content ratios have also been studied. Many material and device properties of the binary mixture can be tunable by changing the compositional ratio of the two liquid-crystal components. The experimental results show that the phase-transition temperatures are altered when the major liquid crystal is blended with the negative liquid crystal. The changes include the decrease in the melting point, increase in the clearing point, and, in turn, the wider range of the mesophase. The birefringence of the binary liquid crystal decreases with increasing concentration of the negative-liquid-crystal component because the birefringence of the negative dielectric anisotropy is less than that of the positive one. The physical properties of the binary substance, such as the dielectric anisotropy and rotational viscosity, change at various temperatures. Furthermore, the response time of the blend rises exponentially with the increase in concentration of the liquid crystal with negative dielectric anisotropy.
許敬揚. "A Study on Liquid-Liquid Equilibria of Acrylic Monomer + 2-Ethyl-1-hexanol + Water Mixture System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/18118957468480591367.
Повний текст джерела明新科技大學
化學工程研究所
97
In this thesis, we have measured liquid-liquid equilibrium (LLE) data for the systems water + 2-ethyl-1-hexanol + methacrylic acid, + methyl methacrylate, + ethyl methacrylate, or + isobutyl methacrylate were determined at atmospheric pressure over temperatures of 288.15 K and 318.15 K. In the methacrylic acid mixture system, since water + 2-ethyl-1-hexanol is the only liquid pair that is partially miscible, the ternary system water + 2-ethyl-1-hexanol + methacrylic acid behaves as Type I of LLE. On the other hand, since 2-ethyl-1-hexanol + methacrylate is the only liquid pair that is completely miscible and the two liquid pairs (water + 2-ethyl-1-hexanol) and (water + methacrylate) are partially miscible. All the other investigated ternary systems behave as Type II of LLE. From these new LLE data, the reliability of the experimental tie-line data was determined through the Othmer-Tobia and Bachman plots. Finally, the experimental data were also compared with the values correlated by the NRTL and UNIQUAC models. Good quantitative agreement was obtained with these models.
Lau, Cheuk-Wah, and 劉卓華. "Studies of Second Harmonic Generation in Polymer-Liquid Crystal Mixture Films." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/87451765569026382811.
Повний текст джерелаWei-Yuan, Lai, and 賴威遠. "Rheological research of two phase mixture of liquid crystal and polymer." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/69386843490681416313.
Повний текст джерела東海大學
化學工程學系
87
The rheological behavior of the mixture of polymer, poly butyl acrylate (PBA) and cholesteric liquid crystal, cholesteryl oleyl carbonate (ChOC) was investigated. We used rotational rheometer RDAⅡ to do dynamic strain/frequency sweep tests, transient step rate tests, and steady rate sweep tests. In dynamic frequency sweep tests, dynamic storage modulus G'' increases with PBA concentration. But when PBA concentration is over 80%, G'' decreases. This tells us that suspensions have solid elastic behavior. Several theoretical equations predict that viscosity increase when phase volume increase. But in our steady rate sweep tests, it only established in low phase volume and low shear rate for ChOC/PBA mixtures in our case. And for PBA/ChOC mixtures, shear viscosity was overpredicted in certain concentration. We also got a conclusion that theoretical equations that predict viscosity can''t handle the case which droplets deformed.
Chen, Feng min, and 陳逢民. "Physical properties of binary mixture of the ionic liquid in solvents." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/21380513182878653018.
Повний текст джерела明志科技大學
化學工程研究所
100
This study reports on the synthesis and the physical properties of ionic liquid of 1-isoalkyl-3-methylimidazolium bromide [i-Cnmim][Br], (n=3,4,5)。The values of density, refractive index , viscosity and conductivity at temperature range from 298.15 to 338.15 K were measured and reported for the 1-isoalkyl-3-methylimidazolium bromide ionic liquid。Empirical correlations were proposed to represent the present experimental data。The density, refractive index and viscosity values decrease with increasing temperature。The density and refractive index values decrease with the increases in the length of the alkyl chain in the imidazolium cation。The viscosity value increase with increasing in the length of the alkyl chain in the imidazolium cation 。The conductivity values increase with increasing temperature。 In the study,densities , refractive index and viscosity of the 1-isoalkyl-3-methylimidazolium bromide, in water ,methanol , ethanol ,1-propanol and 1-butanol at a temperature range from 298.15 to 338.15 K and atmospheric pressure were measured over the whole composition range。Excess molar volumes , refractive index deviations and viscosity deviations for the binary systems were calculated 。These results were fitted to a Redlich-kister equation to determine the fitting parameters and the root mean square deviations。
ZHANG, WEN-RUI, and 張文瑞. "Unsteady thermosolutal convection in a shallow enclosure of liquid water mixture." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/72551896776120383232.
Повний текст джерела