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Dissertations / Theses on the topic 'General Chemical Engineering'

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1

Asghari, Amir Kasra. "Microstructural engineering of cakes." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7757/.

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The objective of this thesis is to advance the current understanding of some pertinent formulation and processing interactions informing final cake microstructures. A primary concern is to understand how certain ingredients, fundamental to cake batter formation interact, to develop new methods and models for optimising and characterising these microstructures. The motivation of this work stems from the empirical methods still prevalent within cake research. However, an approach based on fundamental understanding of formulation and processing functions is necessary for both future innovation an
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2

John, Unyime Edet. "Chemical performance of cement stabilised contaminated clay." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1453/.

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Urban demand has increased the need to redevelop contaminated land. New legislation for land management has actively discouraged previously acceptable dig and dump practices. This has encouraged in-situ remediation approaches, for which stabilisation / solidification (S/S) is particularly suitable for treating metal contamination. However, concerns over long-term effectiveness and durability of S/S needs to addressed, because contamination is contained but not removed. This requires effective chemical assessments to inform design. This study aims to design a suitable method for assessing S/S e
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3

Chen, Jay-San. "Standardisation of flexure testing of engineering ceramics." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/67042/.

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With the increase in usage of engineering ceramics, a new industrial standard is required in order to evaluate its properties and to perform a fair and just trade. The thesis investigates the faults and omissions of existing work and judges today's requirements thereby constructing a framework with which today's and future standards in flexure testing can be based. The draft standard presented in this thesis covers the three major testing methods for determining the biaxial flexural strength (modulus of rupture) of engineering ceramics. The ring-on-ring, ball-on-ring, and 4-Ball test fixtures
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4

Chitez, Adriana. "Coupled thermo-hygro-chemical modelling of self-healing processes in cementitious materials." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/70906/.

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This thesis presents details of a numerical programme of study on the themo-hygrochemical (THC) processes occurring during the self-healing of cementitious materials. A comprehensive THC model, which is mechanistic in nature, is proposed and implemented in the framework of the finite element method. The aim of this model is to develop a useful computational tool that is capable of realistically predicting damage recovery in terms of the crack filling observed under specific environmental conditions. The early age and long term behaviour of the cementitious materials is simulated by solving a b
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5

Smith, Gregory K. "Simulations of chemical catalysis." Thesis, The University of New Mexico, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3612623.

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<p> This dissertation contains simulations of chemical catalysis in both biological and heterogeneous contexts. A mixture of classical, quantum, and hybrid techniques are applied to explore the energy profiles and compare possible chemical mechanisms both within the context of human and bacterial enzymes, as well as exploring surface reactions on a metal catalyst. A brief summary of each project follows. </p><p> Project 1 - Bacterial Enzyme SpvC </p><p> The newly discovered SpvC effector protein from <i>Salmonella typhimurium </i> interferes with the host immune response by dephosphory
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6

Masum, Shakil Al. "Modelling of reactive gas transport in unsaturated soil : a coupled thermo-hydro-chemical-mechanical approach." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/38159/.

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This thesis presents the development of a reactive gas transport equation under coupled framework of thermal, hydraulic, chemical and mechanical (THCM) behaviour of variably saturated soil. The capabilities of theoretical and numerical modelling of THCM processes have been advanced by the successful implementation of various aspects of the new addition. The previously developed THCM model at the Geoenvironmental Research Centre (GRC) has been extended to include the multicomponent gas transport modelling coupled with chemical/geochemical processes. The mechanisms of advection and diffusion hav
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7

Hindley, Sarah. "Atomic layer deposition and metal organic chemical vapour deposition of materials for photovoltaic applications." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/16313/.

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In this thesis, the development of thin films and nanostructures prepared with chemical vapour techniques are investigated for applications in photovoltaics. The deposition of both p-type and n-type oxides are investigated as a means of preparing all oxide p-n junctions. Both CVD and ALD precursors and processes have been developed. Zinc oxide nanowires are of interest as an n-type absorber layer with high surface area. In this thesis, the crystal structures of DEZn and DMZn were revisited and a new understanding of conventional zinc CVD precursors is presented. For DEZn a single structure was
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8

Tang, Yiping. "A study of fluid behavior by a general analytical solution of the Ornstein-Zernike equation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26141.pdf.

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9

Parrilla, Gutierrez Juan Manuel. "Investigating automated chemical evolution of oil-in-water droplets." Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7744/.

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One of the main unresolved questions in science is how non-living matter became alive in a process known as abiognesis, which aims to explain how from a primordial soup scenario containing simple molecules, by following a ``bottom up'' approach, complex biomolecules emerged forming the first living system, known as a protocell. A protocell is defined by the interplay of three sub-systems which are considered requirements for life: information molecules, metabolism, and compartmentalization. This thesis investigates the role of compartmentalization during the emergence of life, and how simple m
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10

Chippendale, Richard. "Modelling of the thermal chemical damage caused to carbon fibre composites." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/361708/.

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Previous investigations relating to lightning strike damage of Carbon Fibre Composites (CFC), have assumed that the energy input from a lightning strike is caused by the resistive (Joule) heating due to the current injection and the thermal heat ux from the plasma channel. Inherent within this statement, is the assumption that CFCs can be regarded as a perfect resistor. The validity of such an assumption has been experimentally investigated within this thesis. This experimental study has concluded that a typical quasi-isotropic CFC panel can be treated as a perfect resistor up to a frequency o
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11

Howell, Bill. "Physical and chemical aspects of the solvent extraction of uranium by a tertiary amine." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/4574.

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12

LLoyd-Evans, Nellie. "Studies on the survival and chemical disinfection of human rotavirus (Wa) on inanimate surfaces." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/4711.

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13

Moheb, Ahmad. "A general study of electrodialysis processes in a cell fitted with an organic membrane." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266498.

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14

Hasan, Muhammad Sami. "Phosphate glass fibre reinforced composite for bone repair applications : investigation of interfacial integrity improvements via chemical treatments." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12777/.

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Bone repair devices made from degradable polymers, such as poly lactic acid (PLA) have limitation in terms of matching the mechanical property requirements for bone repair, both initially and for the duration of repair. For this reason the use of totally degradable phosphate glass fibre (PGF) reinforced PLA composite has proved attractive. A crucial part of the success of such implants is maintenance of interfacial integrity between the polymer matrix and reinforcement phases of the composite. It is well known that most fibre reinforced composites loose 50% or more of their strength due to int
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15

Panjapornpon, Chanin Soroush Masoud. "Model-based controller design for general nonlinear processes /." Philadelphia, Pa. : Drexel University, 2005. http://dspace.library.drexel.edu/handle/1860/611.

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16

Holavanhalli, Jayatirtha. "Growth and characterization of ZnSe on GaAs and Si substrates using organic chemical vapour deposition technique." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55608.

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17

Elhag, Faisal Abdalla. "Density-damage relationships and chemical control of the Northern corn rootworm, Diabrotica barberi (Coleoptera : Chrysomelidae), in Quebec." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74045.

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18

Finstad, Casey Charles. "Gas phase surface preparation and activation of silicon using ultraviolet activated chemistries." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280695.

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Microelectronic devices have been scaled down to the point where lateral dimensions are on the order of a hundred atoms and a film thicknesses might be less than ten atoms. This makes surface preparation an increasingly important part of the fabrication process. The atoms and molecules terminating surfaces between processing steps are now a relatively large fraction of the overall film thickness. These terminating monolayers have to function as passivation layers, diffusion barriers, and seed layers for subsequent thin film depositions. This work demonstrates that precise control of the atoms
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19

Zhang, Xiaohong. "Chemical mechanical polishing and grinding of silicon wafers." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/475.

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20

Ishola, A. "Advanced safety methodology for risk management of petroleum refinery operations." Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/7984/.

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Petroleum refineries are important facilities for refining petroleum products that provide the primary source of energy for domestic and industrial consumption globally. Petroleum refinery operations provide significant contribution to global economic growth. Petroleum refineries are complex, multifaceted systems that perform multiple phase operations characterized by a high level of risk. Evidence based major accidents that have occurred within the last three decades in the petroleum refineries, around the world, indicates losses estimated in billions of US dollars. Many of these accidents ar
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21

Malik, Nur Hafizah. "Microstructural development of high solid food systems during freeze-drying." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8664/.

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Freeze-drying is an energy demanding operation involving dehydration through sublimation of ice crystals. It has important application in the production of high quality dried food such as instant coffee. Correlating the operating conditions with product attributes is essential to design processes that are energy efficient whilst producing product of desired characteristics. In this study, microstructure development and evaluation for gum arabic and coffee solutions during freeze-drying have been considered. Freeze-drying processes were carried by varying the material’s concentration (20-60% w/
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22

Sandells, Jamie Ian. "Mathematical modelling of planar solid oxide fuel cells." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4908/.

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In this thesis we construct a series of mathematical models from first principles to examine the advection, diffusion and reactions of species within a planar Solid Oxide Fuel Cell (SOFC). We reduce the complexity of an SOFC to flow and reaction across a flat, impermeable plate and begin by establishing a simplistic model for the incompressible, isothermal flow and reaction of hydrogen. Throughout the thesis we seek to extend this initial model by adding appropriate levels of complexity such as alternative fuels, compressibility and thermal effects. In establishing solutions to these models we
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23

Liu, Li. "Computational fluid dynamics modelling of complex fluid flow in stirred vessels." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4753/.

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Fluid mixing in stirred vessels is widely encountered in a number of industries. In this work, different experimental techniques and the CFD modelling approach are used to measure the mixing of a wide range of fluids in stirred vessels. As the detailed validation is essential for CFD modelling, CFD predictions are compared in detail with different experimental measurements. The capability of CFD modelling of the 3D spatial distribution of velocity and solid concentration within opaque concentrated solid-liquid suspensions with the mean solid concentration up to 40 wt% is assessed by comparing
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24

Day, George. "The immobilisation of Caesium and Strontium from nuclear waste captured by IONSIV." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8206/.

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A previous study revealed Cs_2TiNb_6O_1_8 to be the major Cs-containing phase after hot isostatic pressing Cs-loaded IONSIV (a commercial exchanger) which demonstrated excellent wasteform properties. Both experimental and theoretical studies have been carried out in order to assess if Cs_2TiNb_6O_1_8 is able to retain ^1^3^7Ba^2^+, the transmutation product of ^1^3^7Cs^+. A series of samples with different charge compensation mechanisms have been synthesised including Cs_2_-_xBa_xTi^(^4^+^)_1_+_xNb^(^5^+^)_6_-_xO_1_8, Cs_2_-_xBa_xTi^(^3^+^)_xTi^(^4^+^)_1_-_xNb_6O_1_8 and Cs_2_-_xBa_xTiNb^(^4^+
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25

Chen, Ziyu. "The crystallization of poly(ethylene terephthalate) studied by thermal analysis and FTIR spectroscopy." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4251/.

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This thesis concerns the thermal behaviour and properties, isothermal crystallization kinetics and seeded crystallization study of Poly (ethylene terephthalate) (PET) using thermal analysis Fourier transform infrared (TA-FTIR), two-dimensional infrared correlation spectroscopy (2D-FTIR) and differential scanning calorimetry (DSC). TA-FTIR has been used to characterize phase transitions by a change in the absorbance or peak position with temperature in thermal cycling. It assigns the phase transition temperature to an individual chain segment and observes two different types of thermal behaviou
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26

Liu, Yinzhe. "Low melting point alkali metal borohydride mixtures for hydrogen storage." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8447/.

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With relatively high gravimetric and volumetric hydrogen capacities and low hydrogen operating pressures, borohydrides are being investigated for their potential use as solid-state hydrogen storage media. This work focuses on investigating the hydrogen sorption mechanisms for \(LiBH_4\)-based low-melting-point borohydride mixtures (e.g. \(0.62LiBH_4\)-\(0.38NaBH_4\), \(0.75LiBH_4\)-\(0.25KBH_4\)), and their destabilized systems using selected additives. Solid solutions and bimetallic borohydride are found in the as-prepared \(0.62LiBH_4\)-\(0.38NaBH_4\) and \(0.75LiBH_4\)-\(0.25KBH\) mixtures,
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27

Wong, Yuen Mei. "Optimising the plastic optical fibre evanescent field biofilm sensor." Thesis, Liverpool John Moores University, 2008. http://researchonline.ljmu.ac.uk/5906/.

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This thesis describes the development, characterisation and application of large diameter multimode plastic optical fibre (POF) sensors using evanescent field modulation. The exposed polymethylmethacrylate (PMMA) core of the POF fibre forms the sensor interface that detects refractive index changes of a measurand acting as the cladding. When a liquid measurand is used, the sensor can detect changes in refractive index, absorption and suspended particulates. It is this simple mechanism by which the evanescent field POF sensor operates. The evanescent field POF sensor has been characterised for
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28

Waugh, William. "Development of a new manufacturing method of electrodes for solid oxide fuel cells." Thesis, Edinburgh Napier University, 2010. http://researchrepository.napier.ac.uk/Output/3750.

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It is well established that anodes for solid oxide fuel cells (SOFCs) can be manufactured by processes involving final sintering. This research investigated a novel alternative method which relies on the electroless co-deposition of yttria-stabilised zirconia (YSZ) or ceria-stabilised zirconia (CeSZ) and nickel onto a YSZ substrate. This process allows complex or simple shaped substrates to be coated, thereby replacing the high temperature sintering and reduction stages with a single plating operation, which is substantially more cost effective and greatly simplifies the manufacture of any cel
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29

Glavan, Ana. "Chemical Approaches to the Surface Engineering of Paper and Cellulose-Based Materials for Microfluidics, Electronics and Low-Cost Diagnostics." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:26718749.

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Paper (and other cellulose-based materials such as cotton thread and fabrics) are underexploited as materials for the construction of “high-tech” and “lab-on-a-chip” devices. One major drawback of paper is its tendency to absorb water from the environment and, with wetting, to change its mechanical properties; other challenges relate to control over the attachment of molecules (e.g. antibodies, DNA) and cells on its surface, and to the addition of electronic function. The goal of this thesis is to develop paper as a substrate for a range of applications— microfluidics, substrates for electroni
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Matthews, Samuel Aaron 1962. "High pressure biomass liquefaction in a short-residence time autoclave." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277800.

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The University of Arizona has developed an advanced extruder-feeder biomass liquefaction reactor system. This 11-year project successfully provided an alternative energy process for converting biomass to a crude oil, which can be hydrotreated and ultimately processed into liquid transportation fuels. In order to provide support studies for this process, a short-residence time autoclave capable of providing very brief heat-up and quenching periods in comparison to the time at reaction temperature has been designed and operated. Wood liquefaction in the presence of carbon monoxide, water, and so
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Mobed, Maryam. "In-vitro and in-vivo characterization of carboxymethylchitin-coated liposomes." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=42098.

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The survival of red blood cells in circulation has been correlated to a negative surface charge in the membrane due to the presence of N-acetyl neuraminic acid (NANA) residues. In this study, biodegradable NANA analogs such as the polyelectrolytes Carboxymethylchitin (CMC) and Carboxymethyl/Glycolchitin (CO) have been adsorbed by physical adsorption onto the surface of positive and neutral liposomes. The dye Alcian Blue has been used to standardize the initial polymer concentration between unequally substituted polymer batches of the same molecular weight. The amount of polymer adsorbed on the
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32

Stavrinides, Alexander James. "Isothermal microwave biology : catalysis and fermentation." Thesis, Liverpool John Moores University, 2012. http://researchonline.ljmu.ac.uk/6110/.

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This thesis looks directly into the controversial subject of the microwave field effect by the production of a versatile prototype isothermal microwave reactor for the investigation of enzymatic and microbiological reactions. The observed results from the prototype reactor and experiments conducted conclude that there is a nonthermal, nonlinear response between the exposure microwave power and rate and yield of cellulose saccharification. The nature of the nonthermal response is controversial and may be dependent on the definition of "nonthermal,' leading to ambiguity of exact mechanism. Enzym
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33

Roberts, Joseph. "Synthesis and characterisation of nanoscale oxides for energy applications." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2005979/.

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The motivation for this research is the synthesis and characterisation of nanostructured oxide materials for potential applications in renewable energy generation or storage. In particular, the research in this thesis addresses the development of nanostructured oxide materials which could be exploited as photovoltaics and transparent conductive oxides. The exploitation of anodised aluminium oxide (AAO) to fabricate nanostructured semiconductor pn-junctions as the basis photovoltaic devices is investigated. Various microstructures are modelled with the aim of identifying ones with high interfac
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34

de, Sá Ribeiro Albina Maria. "Studies of gas-liquid flow in bends." Thesis, University of Birmingham, 1994. http://etheses.bham.ac.uk//id/eprint/5069/.

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The present investigation is concerned primarily with air-water flow in a horizontal 0.032 m ID tube, and the influence of a 90° horizontal bend on the flow characteristics. Visualisation studies using high speed still photography and cine film, and entrainment and drop size measurements were conducted before and after the bend. Entrained mass fluxes were determined from film flow measurements carried out using the film removal technique, while the drop size distributions were measured with a laser diffraction technique. During these measurements the pressure in the test section was held betwe
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35

Zhang, Yuning. "Analysis of radial oscillations of gas bubbles in Newtonian or viscoelastic mediums under acoustic excitation." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/55427/.

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Acoustic cavitation plays an important role in a broad range of biomedical, chemical and oceanic engineering problems. For example, kidney stone can be crushed into the powder (being discharged naturally) by the acoustic cavitation generated by carefully controlled focused ultrasonic beams. Therefore, the prediction of generation of acoustic cavitation is essential to the aforementioned emerging non-invasive technique for kidney stone crushing. The objective of this PhD program is to study the generation of acoustic cavitation (e.g. through rectified mass diffusion across bubble interface) the
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36

Curnick, Oliver J. "Ionomer-stabilised Pt and Pt-Ti bimetallic electrocatalysts for the proton exchange membrane fuel cell." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3732/.

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This work aims to address the need for more durable electrocatalysts with lower precious metal content for proton exchange membrane fuel cells (PEMFCs), through the development of novel electrocatalyst materials and preparation routes. In this work, 'Nafion-Pt/C' electrocatalysts have been derived from ionomer-stabilised Pt nanoparticles synthesised via a novel, wet-chemical route that offers unprecedented control over the formation of the Pt-ionomer interface, with a view towards maximising the utilisation of the electrocatalyst. Nafion-Pt/C electrocatalysts have been characterised using ex-s
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37

Heidari, Ali. "Numerical simulation of deflagration to detonation transition in hydrogen explosion." Thesis, Kingston University, 2012. http://eprints.kingston.ac.uk/23725/.

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The issue of deflagration to detonation transition (DDT) is one of the key factors influencing safety standards, risk assessment and risk managements in the petrochemical industries. It is also one of the most outstanding problems in combustion theory. Despite the efforts from a number of scientists around the world, numerical predictions of DDT is still an un-resolved problem due to the high level of complexities involved. Although there have been relatively more experimental efforts, a comprehensive database to assist model validation and development is still lacking. The present thesis incl
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38

Malik, Shoaib Ahmad. "Damage detection using self-sensing composites." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1750/.

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The primary aim of this research programme was to enable damage detection in glass fibre reinforced composites using the reinforcing fibres as the sensing element. In other words, E-glass fibres were used as light guides to detect the fracture of individual fibres, when loaded in tension. This was achieved by monitoring the transmitted light intensity through the reinforcing glass fibres. Two types of glass fibres and matrices were evaluated. In the case of glass fibres, E-glass and custom-made small-diameter (12 µm) optical fibre (SDOF) were used. Three types of low refractive index resin sys
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Witte, Christian. "Micromanipulation in microfluidics using optoelectronic and acoustic tweezing." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6391/.

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The thesis introduces a concept for a unified platform that enables the use of acoustic and electric fields for particle manipulations in microfluidic environments. In particular, optoelectronic tweezing (OET), also known as light induced dielectrophoresis is fused with acoustic tweezing, also known as acoustophoresis, on a versatile system. The system can be divided into two individual physical units. The first one represents the OET unit which integrates light induced electric fields into a robust microfluidic chip. The OET chip not only operates as a device for electric field generation but
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40

Trimeloni, Thomas. "Accelerating Finite State Projection through General Purpose Graphics Processing." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/175.

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The finite state projection algorithm provides modelers a new way of directly solving the chemical master equation. The algorithm utilizes the matrix exponential function, and so the algorithm’s performance suffers when it is applied to large problems. Other work has been done to reduce the size of the exponentiation through mathematical simplifications, but efficiently exponentiating a large matrix has not been explored. This work explores implementing the finite state projection algorithm on several different high-performance computing platforms as a means of efficiently calculating the matr
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41

Marigo, Michele. "Discrete element method modelling of complex granular motion in mixing vessels : evaluation and validation." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3402/.

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In recent years, it has been recognised that a better understanding of processes involving particulate material is necessary to improve manufacturing capabilities and product quality. The use of Discrete Element Modeling (DEM) for more complicated particulate systems has increased concordantly with hardware and code developments, making this tool more accessible to industry. The principal aim of this project was to study DEM capabilities and limitations with the final goal of applying the technique to relevant Johnson Matthey operations. This work challenged the DEM numerical technique by mode
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42

Aldarmaki, Naeema Ibrahim Karam Al-Darmaki. "Extraction and enrichment of minor lipid components of palm fatty acid distillate using supercritical carbon dioxide." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3621/.

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Currently the extraction of valuable components from oils is of growing interest. Palm fatty acid distillate is a by-product from palm oil refining process which contains valuable minor components. The scope of the present work was to investigate the enrichment of high value low concentration components of palm fatty acid distillate namely squalene (1.8-2.3 wt.% squalene) using supercritical carbon dioxide as solvent with counter-current packed column kept under isothermal and longitudinal thermal gradient. The overall objective of this work was to explore the effect of extraction process para
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Parihar, Arun K. "Greenhouse gas emissions and strategies for mitigation : opportunities in agriculture and energy sector." Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2066.

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44

Fang, Haitao. "Low Temperature and High Salt Concentration Effects on General CO2 Corrosion for Carbon Steel." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1163794555.

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Mee, Stephen J. "The synthesis, characterisation and properties of self- assembled hollow and low density microspheres." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/3116/.

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Hollow low density microspheres were prepared by adsorbing kaolin nanoparticles onto a polystyrene (PS) template. A cationic polyelectrolyte, poly(diallydimethylammonium chloride), was initially adsorbed on the PS to render the surface cationic enabling the kaolin nanoparticles to form a shell structure due to electrostatic attraction forces. An increase in ionic strength by the addition of 0.1 M NaCl increased the amount of polyelectrolyte adsorbed at the PS surface. Solvent relaxation NMR experiments indicated that solvent molecules were bound at the PS surface suggesting attached polymer ch
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Ghahari, Seyed Majid. "In situ synchrotron x-ray characterisation and modelling of pitting corrosion of stainless steel." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3269/.

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Pit propagation in stainless steels under electrochemical control was investigated using in situ synchrotron X-ray microtomography, which was used to confirm that the lacy covers commonly found for pits in stainless steels grow through perforation of the metal surface by upward growth of rapidly dissolving lobes from the main pit. In situ synchrotron X-ray radiography has been used to observe the evolution of 2D pits growing at the edge of stainless steel foils under electrochemical control in chloride solutions. Pit growth shape, kinetics and stability under current and potential control at v
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47

Cao, Chundi. "In situ infared [i.e. infrared] studies of catalytic partial oxidation." Diss., Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/887.

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48

Bourquin, Yannyk Parulian Julian. "Shaping surface waves for diagnostics." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/4167/.

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Infectious diseases continue to kill millions of people every year and are a significant burden on the socio-economic development of developing countries. After many years of international policy aimed at containing diseases, it has recently become an explicit aim to move towards elimination of infectious diseases. However, if this is to occur, it will be necessary to have highly eficacious diagnostic tools to ensure infected individuals are identified and treated. However, the diagnosis of infectious diseases in the developed and developing world requires the full integration of complex assay
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49

Cruz, Jimenez Juan Carlos. "Hydrolases on fumed silica : conformational stability studies to enable biocatalysis in organic solvents." Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3648.

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50

Callaghan, Fergal James. "Co-digestion of agricultural and industrial wastes." Thesis, University of Birmingham, 1998. http://etheses.bham.ac.uk//id/eprint/3601/.

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Anaerobic digestion technology has not gained widespread acceptance on UK farms due mainly to the long return on investment periods involved. It has been suggested that co-digestion of agricultural and industrial wastes may enhance the economic viability of such installations. Batch and continuous digestion of cattle slurry and organic industrial wastes was carried out in specially constructed pilot plant digesters, to determine optimum mixtures of waste and digester loading rates. A total of 10 different wastes were tested, on a batch digestion basis, for their potential to co-digest with cat
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