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1
Johansson, Elisabeth. "Understanding Solution Quality." Doctoral thesis, Linköpings universitet, Logistik- och kvalitetsutveckling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128274.
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The integration of services and products into solutions can open up new business opportunities for firms. This thesis concerns how firms can provide solutions that are perceived as high quality. Solutions are often provided over several years, which implies a changed customer relationship compared to product provisions. Since the solution aims to support the customer’s activities, firms face new challenges when introducing solutions. One challenge is to integrate all components and activities of the solution, and simultaneously support the customer’s activities. In addition, the firm must ensure that the solution and all of its parts are of high quality. Most of the existing research on quality is related to the management of a firm’s internal activities and the interaction during exchange. Within the research on quality, customer orientation means that a firm should manage the relevant product or service to meet customer requirements. When this is achieved, the product or service is of high quality. Since solutions are seen as services and products that are integrated as an outcome, as well as a customer relational process that aims to support the customer’s activities, firms have little to learn from previous research about the quality of solutions. The aim of this thesis is to increase knowledge about how to manage solution quality. The thesis combines insights from research on quality with research on solutions and servitization. Three research questions are answered. The first question concerns the content of solution quality; the second deals with how firms can, with support from interventions, meet the new challenges that arise from solution provision; and the third question concerns how customers can be involved to achieve solution quality. The research questions are answered through five papers based on literature studies and empirical data. The papers contribute to an increased knowledge of solution quality and how firms can work to achieve it. The results of the thesis suggest that solution quality is built on seven quality dimensions: reliability, communicability, internal consistency, empathy, approachability, tangibility, and adaptability. In addition, knowledge of processes and customer relationships are two prerequisites for the concept. These dimensions and prerequisites are supported by interventions that can provide a change. However, it has become evident that whatever intervention is used must be related to the dimensions that are supposed to be improved. Furthermore, customer involvement is argued to be an intervention to support the prerequisites for solution quality, especially during the solution development. The results of this thesis extend the research on quality by increasing the knowledge of the solution quality concept and by changing the view of customers and their involvement during solution development.<br>Den här avhandlingen berör hur företag kan möjliggöra så att produkter och tjänster, integrerade i så kallade helhetslösningar, kan levereras med hög kvalitet. Helhetslösningar levereras ofta över en längre tid vilket medför en förändrad kundrelation till skillnad mot när endast en produkt levereras. Helhetslösningar syftar till att stödja kunden i dess aktiviteter. Det medför att företagen möter nya utmaningar. En utmaning är att få den komplexa helhetslösningen, bestående av olika komponenter och aktiviteter, att passa ihop och samtidigt bidra till att stötta kundens aktiviteter. Dessutom behöver företagen säkerställa att helhetslösningen och alla dess delar har hög kvalitet. Tidigare forskning inom kvalitetsutveckling berör företags interna processer och aktiviteter. När man inom kvalitetsutveckling talar om kundorientering innebär det att företaget med interna medel ska arbeta för att möjliggöra så produkten eller tjänsten möter kundens specifikationer. När detta är uppnått har produkten eller tjänsten hög kvalitet. Företagen har här inga riktlinjer att följa när de ska leverera helhetslösningar som ska anpassas efter kundens aktiviteter och när en så tydlig kundrelation ska utvecklas. Det finns med andra ord ingen vägledning för vad som är kvalitet eller hur man möjliggör hög kvalitet på helhetslösningar. Den här avhandlingen visar vad som ingår i begreppet kvalitet när det gäller helhetslösningar (lösningskvalitet) samt hur företag kan möjliggöra det. Tre olika frågor har huvudsakligen behandlats. Den första frågan besvarar vad lösningskvalitet innehåller. Den andra berör hur företag med hjälp av åtgärder kan bidra till en förändring inom företaget för att möta de nya utmaningar som uppstår med att leverera helhetslösningar. Den tredje frågan berör på vilket sätt kunden kan involveras för att uppnå lösningskvalitet. För att besvara frågorna har ett antal studier baserade på empiriskt material genomförts, och fem artiklar har författats under forskningsprocessen. Artiklarna bidrar till att öka förståelsen för lösningskvalitet och hur företag kan arbeta för att uppnå det. Avhandlingens resultat visar att lösningskvalitet består av sju olika dimensioner: tillförlitlighet, kommunicerbarhet, intern överensstämmelse, empati, nåbarhet, påtaglighet, och anpassningsbarhet. Dessutom är kunskap om processer och kundrelationer två förutsättningar för att uppnå lösningskvalitet. Dimensionerna betraktas som riktmärken för lösningskvalitet som företag kan arbeta mot. Dimensionerna och förutsättningarna stöttas i sin tur av åtgärder som används för att bidra till den interna förändringen inom företaget. Resultaten visar dock att använda åtgärder inte alltid leder till en förändring. Endast noga utvalda åtgärder som relaterar till en specifik dimension möjliggör en förändring. Exempel på en möjlig åtgärd är kundinvolvering. Speciellt vid utveckling av helhetslösningar, betraktas kundinvolvering som en möjlig åtgärd för att stötta förutsättningarna till lösningskvalitet. Resultaten i den här avhandlingen bidrar huvudsakligen till en ökad kunskap om vad kvalitet är när det gäller helhetslösningar. Ytterligare ett bidrag är att föreslå kundens förändrade roll under utveckling och vid leverans av helhetslösningar för att uppnå lösningskvalitet.
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Wilson, Jenna. "Hope-Focused Solutions| A Relational Hope Focus of the Solution-Building Stages in Solution-Focused Brief Therapy." Thesis, Nova Southeastern University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3725579.
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<p> The positive psychotherapy focused on for this study is Solution-Focused Brief Therapy (SFBT). Insoo Kim Berg and Yvonne Dolan (2001) once described the essence of Solution-Focused Brief Therapy (SFBT) as the “pragmatics of hope and respect” (p. 1) and despite Berg and Dolan’s declaration of hope’s importance in SFBT, little process research has been published looking at the “pragmatics” of hope in SFBT practice. Hope is seen as a common factor in psychotherapy since the human relationship, also known as the therapeutic alliance, is a foundation of psychotherapy. Hope plays a significant role in every human interaction and it is seen as a common factor in human relationships. </p><p> To begin to address this gap, a pilot study was conducted of an Insoo Kim Berg training recording, <i>Irreconcilable Differences,</i> in order to explore how she listened, selected and built hope in her work. Based on a SFBT technique focus, the preliminary results suggested Insoo Kim Berg builds hope relationally through the solution-building by working within the clients’ focus and their presenting problem. Four different yet interrelated hope phases in the SFBT solution building process were identified. To address this gap further, based on a SFBT stage focus, three cases by Insoo Kim Berg were analyzed in this study, <i>Irreconcilable Differences, Over the Hump,</i> and <i>I’d Hear Laughter.</i> The goal of this research was to demonstrate the how Berg listened, selected, and built hope with clients to validate her progression within and across the five SFBT solution-building stages, in all three cases through constant comparison, and to show how these findings are congruent with SFBT hopeful tenets. All with the intention of allowing the pragmatics of hope and respect to become more transparent for future SFBT practitioners. </p><p> Findings suggested building hope appears to be a relational process to building solutions and is co-constructed. Berg demonstrates how she embodies a hopeful stance throughout the duration of therapy. Results show how Berg builds hope within and across her progression of the solution-focused brief therapy solution-building stages, utilizing SFBT techniques and processes, which all align with the foundational SFBT tenets.</p>
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Wilson, Jenna A. "Hope-Focused Solutions: A Relational Hope Focus of the Solution-Building Stages in Solution-Focused Brief Therapy." NSUWorks, 2015. http://nsuworks.nova.edu/shss_dft_etd/7.
Full textAbstract:
The positive psychotherapy focused on for this study is Solution-Focused Brief Therapy (SFBT). Insoo Kim Berg and Yvonne Dolan (2001) once described the essence of Solution-Focused Brief Therapy (SFBT) as the “pragmatics of hope and respect” (p. 1) and despite Berg and Dolan’s declaration of hope’s importance in SFBT, little process research has been published looking at the “pragmatics” of hope in SFBT practice. Hope is seen as a common factor in psychotherapy since the human relationship, also known as the therapeutic alliance, is a foundation of psychotherapy. Hope plays a significant role in every human interaction and it is seen as a common factor in human relationships.
To begin to address this gap, a pilot study was conducted of an Insoo Kim Berg training recording, Irreconcilable Differences, in order to explore how she listened, selected and built hope in her work. Based on a SFBT technique focus, the preliminary results suggested Insoo Kim Berg builds hope relationally through the solution-building by working within the clients’ focus and their presenting problem. Four different yet interrelated hope phases in the SFBT solution building process were identified. To address this gap further, based on a SFBT stage focus, three cases by Insoo Kim Berg were analyzed in this study, Irreconcilable Differences, Over the Hump, and I’d Hear Laughter. The goal of this research was to demonstrate the how Berg listened, selected, and built hope with clients to validate her progression within and across the five SFBT solution-building stages, in all three cases through constant comparison, and to show how these findings are congruent with SFBT hopeful tenets. All with the intention of allowing the pragmatics of hope and respect to become more transparent for future SFBT practitioners.
Findings suggested building hope appears to be a relational process to building solutions and is co-constructed. Berg demonstrates how she embodies a hopeful stance throughout the duration of therapy. Results show how Berg builds hope within and across her progression of the solution-focused brief therapy solution-building stages, utilizing SFBT techniques and processes, which all align with the foundational SFBT tenets.
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Silvester, Debbie Sue. "Electrochemical studies in room temperature ionic liquids." Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:be9e6269-f19a-48de-96e3-41c0c7143d6a.
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The work presented in this thesis involves the application of room temperature ionic liquids (RTILs) as solvents for use in electrochemical experiments. Initially, the fundamentals of electrochemistry is presented, followed by a comprehensive overview of RTILs in terms of their properties, applications and their behaviour as electrochemical solvents compared to conventional aprotic solvents. The results of 8 original studies are then presented as follows: X-Ray photoelectron spectroscopy is used to quantify the concentration of bromide ions in an ionic liquid, and is independently confirmed by potential-step chronoamperometry. The reaction mechanisms and kinetics for the electrochemical reduction of some aromatic nitro compounds (namely nitrobenzene and 4-nitrophenol) are determined. The electrochemistry of phosphorus trichloride and phosphorus oxychloride is studied in detail for the first time, due to the unusual stability of these highly reactive compounds in RTILs. The reductions and oxidations of sodium and potassium nitrate are studied, giving rise to 'melt'-like behaviour. The electrodeposition of sodium oxide on platinum is also demonstrated. The electrochemical oxidation of nitrite and the oxidation and reduction of the toxic gas, nitrogen dioxide, is presented. The oxidation of hydrogen gas is studied in ten RTILs with a range of different cations and anions, and contrasting interactions with the RTIL anions are seen. The electrochemical oxidation of ammonia gas is studied in five RTILs with different anions and a general reaction mechanism is suggested. The reduction of benzoic acid is studied in six RTILs, and the kinetics of the dissociation step are found to be very fast. The first five studies are all carried out in one particular ionic liquid, and the reactions and mechanisms are compared to that observed in conventional aprotic solvents. The last three studies employ several RTILs with different cations and anions to look at the contrasting interaction of protons with the RTIL cation/anion and ultimately help to understand the pH properties of the solvent. The overall findings from the work in this thesis are that some reactions and mechanisms (e.g bromide, nitro derivatives and ammonia) are generally the same in RTILs as in conventional aprotic solvents, but other species (e.g. nitrates, phosphorus derivatives) show remarkably different behaviour. It has also been demonstrated that RTILs are suitable media for the detection of nitrogen dioxide, hydrogen and ammonia gases. This suggests that RTILs could potentially offer many advantages when employed as solvents in electrochemical reactions and in amperometric gas sensors.
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Galinier, Colette. "Dissolution et précipitation des solutions solides (Ba, Sr)SO en solution aqueuse." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613761f.
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Merkley, Keith E. "Enthalpies of Solution of CO2 in Aqueous Methyldiethanolamine Solutions." BYU ScholarsArchive, 1987. https://scholarsarchive.byu.edu/etd/6522.
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The enthalpies of solution, HS, of carbon dioxide in aqueous methyldiethanolamine were measured with an isothermal flow calorimeter over wide ranges of temperature, pressure, weight percent MDEA, and loading (gmole CO2/gmole MDEA). The values of HS (kJ/gmole CO2) were found to be constant up to the saturation concentration of CO2 in the aqueous solution. In addition, experimental data showed that HS was independent of the total pressure over the solution, but linearly dependent upon both temperature and weight percent MDEA as was given by a correlation. A computer program based upon basic thermodynamic quantities was developed to model HS of CO2 in MDEA solutions. The values of K and ΔH for each of the chemical reactions (except the MDEA protonation reaction) were fitted values from the literature. Activity coefficient correlations used in the program were also obtained from the literature. Using these data, the program was first used to find the values of K and ΔH for the MDEA protonation reaction which gave the minimum error between the model and the experimental data. Finally, the values of HS predicted by the program were compared to the experimental data and the differences were discussed.
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Gustafsson, Daniel. "Utveckling av Multi Monitor Solution för SMS Smart Media Solution." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-8036.
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<p><strong>Sammanfattning</strong><em> </em></p><p>Detta examensarbete inom produkt- och processutveckling har genomförts på uppdrag av SMS Smart Media Solutions AB i Stockholm. Syftet med arbetet har varit att ta fram och utveckla ett stativ som ska kunna hålla upp till 4 stycken datorskärmar och som tillåter ergonomisk anpassning och användning. Under projektets gång har antalet skärmar utökats från 4 till 8 för att tillmötesgå uppkomna kund- och marknadskrav. Målet med examensarbetet har varit att ta fram en färdig prototyp som ska kunna ligga till grund för tillverkning av stativet.</p><p>Under utvecklingsarbetet har verktyg som QFD, funktionsanalys, Ishikawa-diagram, Pugh’s jämförelsematris och FMEA använts för att säkerställa att kund-, marknads-, kvalitets och funktionskrav uppfylls. Arbetet inleddes med en idégeneringsfas som utmynnade i ett antal olika koncept. Koncepten utvärderades utifrån kravspecifikation, funktion, antal standardkomponenter och pris. Konceptet som ansågs starkast utvecklades till en prototyp vilken i sin tur testades och utvärderades.</p><p>Resultatet av examensarbetet är att det utvecklade stativet är infört i SMS Smart Media Solutions’ produktportfolio och kommer att finnas med i SMS’ produktkatalog för 2010. Stativet motsvarar alla krav som satts upp i kravspecifikationen och alla problemen som definierats i problemformuleringen har lösts.</p><p> </p><br><p><strong>Abstract</strong></p><p>This thesis in product and process development has been made in cooperation with SMS Smart Media Solutions AB in Stockholm. The aim of the thesis has been to develop a new display bracket that can carry up to 4 monitors and that allows ergonomically adjustments and usage. During the project the amount of maximum monitors has been changed from 4 to 8 to meet the demand of the customers and the market. The goal of the thesis has been to develop a prototype that would be the ground of the future bracket that will be offered in SMS Smart Media Solutions’ product portfolio.</p><p>To make sure that the developed bracket meets all the demands and criteria, tools like QFD, analysis of function, Ishikawa diagram, Pugh’s matrix and FMEA have been used. The process of the product development started with brainstorming and concept generation. The developed concepts were evaluated using analysis of requirements, costs, functions and the amount of used standard components. The winning concept was carried on into a prototype that was tested, evaluated and improved.</p><p>The result of the thesis is that the developed bracket has been integrated to SMS Smart Media Solutions’ product portfolio and will be added to SMS’ product catalogue for 2010. The final bracket met all the criterions that were set in the specification of requirements and all the problems form the problem statement were solved.</p>
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Chen, Feng. "Molecular dynamics simulations of solution mixtures and solution/vapor interfaces." Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/2421.
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Gueye, Abdoul Aziz Dab. "Solution périodique et solution anti-périodique de l'équation différentielle d'Abel." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11518.
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Soit $T$ une constante positive. Dans le présent travail, nous nous intéressons à l'existence d'une solution $T$-anti-périodique et d'une solution $T$-périodique de l'équation différentielle d'Abel
\begin{equation*}
\theta^{\prime}=f_0+\sum_{j\in \mathbb N} f_j\theta^j
\end{equation*}
avec $f_j$, ($j \in \lbrace 0, 1, 2, ...\rbrace$) à variation bornée sur $[0, T]$. Nous allons généraliser cette équation au cas impulsif où $\theta$ et $\theta^{\prime}$ subissent des sauts dépendants de l'état.
Le premier chapitre consiste en un rappel de quelques définitions, notions de bases et résultats fondamentaux de l'analyse réelle et fonctionnelle que nous allons utiliser tout au long des chapitres 2 et 3.
Au deuxième chapitre, on étudie l'existence d'une solution $T$-anti-périodique dans le sens que $\theta(0)= -\theta(T)$. Les conditions que nous imposons nous permettent d'utiliser le théorème du point fixe de Banach. Cette méthode nous donne non seulement l'existence d'une solution, mais aussi un moyen de trouver la solution numériquement ainsi qu'une majoration de la vitesse de convergence uniforme, d'une suite d'itérations de Picard vers la solution. Les résultats obtenus dans ce
chapitre sont publiés dans \cite{BelleyGueye17}.
Au troisième chapitre, on étudie l'existence d'une solution T-périodique pour la même équation. On utilise encore le théorème du point fixe de Banach pour garantir l'unicité de la solution. L'unicité est nécessaire pour que la fonction moyenne $M(\mu)$ que nous introduirons plus tard soit bien définie. Cette méthode nous donne également, non seulement l'existence d'une solution, mais aussi un moyen de trouver la solution numériquement ainsi qu'une majoration de la vitesse de convergence uniforme d'une suite d'itérations de Picard, vers la solution.
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Akilan, Chandrika. "Thermodynamic and related studies of aqueous copper (II) sulfate solutions /." Akilan, Chandrika (2008) Thermodynamic and related studies of aqueous copper(II) sulfate solutions. PhD thesis, Murdoch University, 2008. http://researchrepository.murdoch.edu.au/453/.
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This thesis describes a systematic investigation of the thermodynamic quantities associated with the interaction between Cu2+ and SO42- in aqueous solution. A variety of techniques including UV-Visible spectrophotometry, Cu(II) ion-selective electrode potentiometry, dielectric relaxation spectroscopy and titration calorimetry have been used.
The values for the (aq) association constants determined by UV-Vis spectrophotometry in NaClO4 media as a function of ionic strength were in good agreement with published data but were lower than the values obtained from Cu(II) ion -selective electrode potentiometry. The source of this difference was traced to the presence of solvent-separated ion pairs which are only partially detected by UV-Vis spectrophotometry. This was shown by a detailed investigation of CuSO4(aq) over a wide range of concentrations using modern broad-band dielectric relaxation spectroscopy (DRS). This technique revealed the presence of three ion-pair types: double solvent-separated, solvent-shared and contact ion pairs.
Calorimetric titrations using the log KA values determined by potentiometry, have provided for the first time reliable values for the enthalpy and entropy changes associated with complex formation between Cu2+(aq) and SO42-(aq) system over range of ionic strengths (in NaClO4 media). These data were fitted to a specific ion interaction model to obtain the standard state value which was in excellent agreement with the values obtained in other studies and from the DRS work in this study.
In addition, investigations have been carried out into the physicochemical properties, (osmotic coefficients, densities, heat capacities, solubilities and viscosities) of ternary mixtures of CuSO4(aq) with Na2SO4(aq) or MgSO4(aq). The isopiestic measurements (water activities) of the mixtures were in general well described by Zdanovskii's rule, especially for the mixtures of CuSO4 with MgSO4. The densities of the ternary mixtures of CuSO4 with MgSO4 were found to follow Young's rule of mixing but those of CuSO4 with Na2SO4 deviated from linearity. The solubilities of the salts in their ternary mixtures agree well with literature data and show that the solubility of MgSO4 or CuSO4 decreases with increasing Na2SO4 concentration. The viscosities of all the ternary mixtures show clear negative departures from 'Young's rule' type behaviour.
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Garcia, Sakai Victoria. "Polymer solution themodynamics." Thesis, Imperial College London, 2002. http://hdl.handle.net/10044/1/12024.
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Patel, Rushik, and Ajay Kumar. "Dust extractor solution." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37979.
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The following report conducted with the collaboration of the University of Halmstad and HGFrubber company (Halmstad).The focus on the project is eliminating the dust particles from the inner surface of the EPDM basedrubber module.As a part of improving knowledge about the quality and surface finishing and understanding thematerial’s characteristics. This project initiated in February 2018 and end date was set to August2018.The methodology used in this project is based on the Six-Sigma tools which is widely appreciatedglobally to obtain the Zero-defect production.The implementations of this method and other tools are efficient and beneficial to reduce thedefects in the production without compromising the initial quality of the product.This thesis resulted in a quality improvement approach for eliminating the dust using methods suchas Six-Sigma and 5 why’s.
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Cancino, Cancino Víctor, A. Marcelo Mercado, and M. Giorgio Zunino. "Control Solution S.A." Tesis, Universidad de Chile, 2006. http://repositorio.uchile.cl/handle/2250/135314.
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Tesis para optar al título de Magíster en Administración<br>El presente plan de negocios nace del vínculo con la Facultad de Medicina de la Universidad de Chile, con el objetivo de determinar el potencial de mercado del Producto Reportero, un sistema de monitoreo y control automático, que posee características únicas en el mercado, cómo son el sistema de mensajería electrónica, monitoreo y control vía web.
En base al estudio de mercado realizado, se determino que existe una demanda insatisfecha que las empresas existentes no han logrado cubrir por los costos elevados de las soluciones técnicas factibles de implementar y por un déficit importante de su gestión comercial.
Considerando las características del producto y la definición de mercado relevante para el, se elaboró un plan de negocio para la empresa CONTROL SOLUTION1, que comercializará Reportero, adoptando una estrategia competitiva de enfoque, orientándose a pequeñas y medianas empresas de la Región Metropolitana, de rubros caracterizados por contar con procesos productivos donde el monitoreo de variables físicas es un factor crítico.
La estrategia de marketing, contempla la comercialización del producto mediante multicanales: alianzas comerciales, alianzas complementarias y venta directa al cliente final. Las decisiones estratégicas de las alianzas operará en función de los diversos segmentos de mercado.
Esta industria se caracteriza por presentar un atractivo importante, con proveedores que presentan un poder negociador medio, donde el poder negociador de los compradores y sustitutos es bajo, y no existen importantes represalias ni ambientes hostiles, lo que nos lleva a estimar que se pueden obtener grados importantes de rentabilidad.
La evaluación financiera muestra que utilizando una tasa de descuento de un 35%, la empresa tiene una valoración hoy de M$ 6.675 y una TIR de 67%. En dicha evaluación hemos evaluado el Proyecto Puro, es decir financiado 100% con capital. Por otra parte, el Break Even se logra a partir del séptimo mes, con un volumen de 12 reporteros vendidos. Asimismo, el flujo de caja alcanza su equilibrio en el octavo mes con un volumen de 14 reporteros.
En cuanto a las sensibilizaciones y posibles escenarios, hemos tomado variables estratégicas del negocio. Entre ellas, podemos distinguir, los efectos de potenciales entrantes (mercados locales como extranjeros), y aspectos internos del negocio, entre otros. Lo anterior, se traduce en los posibles efectos en la demanda, márgenes y precios, los cuales son muy sensibles y que frente a estos debemos procurar medidas.
Finalmente, inferimos que es necesario patentar Reportero, de manera de minorizar potenciales riesgos y viabilizar nuestro negocio en cuanto a nuestras estimaciones de tres años.
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Ploetz, Elizabeth Anne. "Fluctuation solution theory." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/18390.
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Doctor of Philosophy<br>Department of Chemistry<br>Paul E. Smith<br>The Kirkwood-Buff (KB) theory of solutions, published in 1951, established a route from integrals over radial (pair) distribution functions (RDFs) in the grand canonical ensemble to a set of thermodynamic quantities in an equivalent closed ensemble. These “KB integrals” (KBIs) can also be expressed in terms of the particle-particle (i.e., concentration or density) fluctuations within grand canonical ensemble regions. Contributions by Ben-Naim in 1977 provided the means to obtain the KBIs if one already knew the set of thermodynamic quantities for the mixture of interest; that is, he provided the inversion procedure. Thus, KB theory provides a two-way bridge between local (microscopic) and global (bulk/thermodynamic) properties. Due to its lack of approximations, its wide ranging applicability, and the absence of a competitive theory for rigorously understanding liquid mixtures, it has been used
to understand solution microheterogeneity, solute solubility, cosolvent effects on biomolecules, preferential solvation, etc. Here, after using KB theory to test the accuracy of pair potentials, we present and illustrate two extensions of the
theory, resulting in a general Fluctuation Solution Theory (FST). First, we generalize KB theory to include two-way relationships between the grand canonical ensemble’s particle-energy and energy-energy fluctuations and additional thermodynamic quantities. This extension allows for non-isothermal conditions to be considered, unlike traditional KB theory. We illustrate these new relationships using analyses of experimental data and molecular dynamics (MD) simulations for pure liquids and binary mixtures. Furthermore, we use it to obtain conformation-specific infinitely
dilute partial molar volumes and compressibilities for proteins (other properties will follow) from MD simulations and compare the method to a non-FST method for obtaining the same properties. The second extension of KB theory involves moving beyond doublet particle fluctuations to additionally consider triplet and quadruplet particle fluctuations, which are related to derivatives of the thermodynamic properties involved in regular KB theory. We present these higher order fluctuations obtained from experiment and simulation for pure liquids and binary mixtures. Using the newfound experimental third and fourth cumulants of the distribution of particles in solution, which can be extracted from bulk thermodynamic data using this extension, we also probe particle distributions’ non-Gaussian nature.
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Galinier, Colette. "Dissolution et precipitation des solutions solides (ba, sr)so:(4) en solution aqueuse." Toulouse 3, 1988. http://www.theses.fr/1988TOU30091.
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Poullikkas, Andreas. "The Method of Fundamental Solutions for the solution of elliptic boundary value problems." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/27141.
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We investigate the use of the Method of Fundamental Solutions (MFS) for the numerical solution of elliptic problems arising in engineering. In particular, we examine harmonic and biharmonic problems with boundary singularities, certain steady-state free boundary flow problems and inhomogeneous problems. The MFS can be viewed as an indirect boundary method with an auxiliary boundary. The solution is approximated by a linear combination of fundamental solutions of the governing equation which are expressed in terms of sources located outside the domain of the problem. The unknown coefficients in the linear combination of fundamental solutions and the location of the sources are determined so that the boundary conditions are satisfied in a least squares sense. The MFS shares the same advantages of the boundary methods over domain discretisation methods. Moreover, it is relatively easy to implement, it is adaptive in the sense that it takes into account sharp changes in the solution and/or in the geometry of the domain and it can easily incorporate complicated boundary conditions.
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Pettersson, Axel, and Siri Nordqvist. "A parking solution using radiocommunication : An embedded solution using radio frequency technology." Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78511.
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Tan, Man Wai Emily. "Lexical signalling of notions of solution in the problem-solution discourse context." HKBU Institutional Repository, 1997. http://repository.hkbu.edu.hk/etd_ra/119.
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Weltz, Max. "Dial over Data solution." Thesis, KTH, Kommunikationssystem, CoS, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91874.
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The increased use of computer networks has lead to the adoption of Internet-based solutions for reducing telephony costs. This has proved to be a boon to callers who can reach the other party directly via the Internet. Unfortunately numerous business persons still need to call to and from mobile phones which are currently a domain where the customers are generally tightly bound to their operators. To provide a simple solution to this problem for companies, Opticall AB has designed an integrated system called the Dial over Data solution, coupling a mobile interface with a low-rate communication channel, which allows calls to be originated remotely at the best price, exploiting the customer company's existing network. This scheme allows the customer company to easily control telecommunications costs, to monitor their employees' efficiency, and more generally speaking to claim a central role in the communications of their employees. The proposed solution allows distant callers (usually employees of the customer company) to benefit from the company's internal network, which is usually more cost effective and offering connectivity to more networks than a cell phone. The Dial over Data solution enables communication between any phone accessible from the customer company's telephony network (such as SIP clients, landline phones, and mobile phones) at a lower cost.</p> This thesis project analyzes existing technologies and compares them to the pre-existing prototype to ascertain the validity of the method and of the components used. This project also explains the improvements brought to the features offered by the DoD solution: the initial prototype has been developed into a stable and functional product, and has been tested internally. Prompted by a need for scalability and additional features, the replacement of Asterisk for the handling of SIP calls by other SIP servers has also been considered and tested.<br>Den nuvarande ökningen av datanätverk har lett till adoptionen av Internetbaserade lösningar för att förminskar kostnader inom telefoni. Tyvärr behöver åtskilliga affärsmän fortfarande ringa till och ifrån mobiler som återstår som ett område där kunderna är fastkedjade till deras operatörer. För att tillföra en enkel lösning till detta problem för kundföretag har Opticall AB planlagt ett integrerat system som kallas Dial over Data som kopplar ihop ett mobilt gränssnitt, med en billig kommunikationsmedel, som tillåter telefonsamtal påbörjas avlägset på det billigaste priset tack vare företagets nätverk. Det ger möjligheten till kundföretaget att vara centralt för sina personals kommunikationer. Det medger ett enkelt sätt att kontrollera kostnader samt övervaka personalens effektivitet. Den Dial over Data lösningen är en lösning som tillåter avlägsen besökarna med kundföretagets inre nätverk kommer att dra nytta av eftersom det är mer kostnadseffektiv och flexibel än en blott mobiltelefon. Denna möjliggör kommunikation mellan SIP-klienter, fast telefoni och mobiltelefoni för en lägre kostnad till företaget utan att framkalla besvär för sina anställda. Konnektiviteten till företagets inre nätverk samt en låg besvärlighetsnivå är garanterade respektive genom konfigurationsförmågan av produkten och ett praktiskt gränssnitt som är redo för korporativkontaktlistor och visar alla informationen som är relevanta till förbrukarnas erfarenhet.</p> Det här avhandlingsprojektet analyserar existerande teknologier och sätter dem i relation till den sedan tidigare framtagna prototypen för att utröna validiteten hos metoden och beståndsdelar. Projektet förklarar även de förbättringar som gjorts till de egenskaper som erbjuds av DOD-lösningen: prototypen har utvecklats till en stabil och funktionell produkt och har testats internt. Driven av behovet för skalabilitet och ytterligare egenskaper har ersättandet av Asterisk för hantering av SIP samtal av andra SIP servers övervägts och testats.
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Swain, Richard J. "A server consolidation solution." [Denver, Colo.] : Regis University, 2006. http://165.236.235.140/lib/RSwain2005.pdf.
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Wörman, Johan, and Ted Davidsson. "Examensarbete Variable filter solution." Thesis, Halmstad University, School of Business and Engineering (SET), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-4227.
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Safaricz, Markus. "Pressure solution in chalk." Thesis, Royal Holloway, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404924.
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Chilton, R. A. "Gas release and solution." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234082.
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Milner, Rebecca J. "Solution-Focused Brief Therapy." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/2978.
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Milner, Rebecca J. "Solution-Focused Brief Therapy." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/2981.
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Fernandes, Pereira Sonia, and Nejat Hamid. "Closed-Loop Orchestration Solution." Thesis, KTH, Hälsoinformatik och logistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253005.
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Computer networks are continuously evolving and growing in size and complexity. New technologies are being introduced which further increases the complexity. Net- work Service Orchestration is all about pushing configuration out into the network devices automatically without human intervention. There can be issues that causes the orchestration to fail. In many cases manual operations must be done to recover from the error which is very contradicting since the goal of orchestration is that it should be fully automated. There is some indication that the errors that are being solved manually could be de- tected and handled by a feedback mechanism. This thesis work aimed to build on current insight and if possible, verify that the feedback mechanism is a viable method. After consideration on different ways to solve the research question, the choice fell on creating a test environment where the approach was tested. The test environment was used to investigate if a network orchestration system could be integrated with a feedback mechanism. The result of this project presents a way to automatically de- tect a network failure and send feedback to a Network Service Orchestrator. The or- chestrator is then able to identify and correct the error.<br>Datornätverk utvecklas kontinuerligt och växer i storlek och komplexitet. Nyteknik införs som ytterligare ökar komplexiteten. Nätverksservice orkestrering handlar om att skicka ut konfiguration automatiskt till enheter i nätverket utan mänsklig in- blandning. Det kan finnas problem som gör att orkestreringen misslyckas. I många fall måste manuella åtgärder utföras för att lösa problemet, vilket är mycket motsä- gelsefullt, eftersom målet med orkestrering är att det ska vara fullt automatiserat. Det finns indikationer på att fel kan detekteras och hanteras av en återkopplings- mekanismen. Detta examensarbete syftar till att bygga på aktuell insikt, och om möj- ligt, verifiera att återkopplingsmekanismen är en möjlig metod. Efter överväganden på vilka olika sätt som projektmålet kunde uppnås föll valet på att skapa en testmiljö där ansatsen kunde testas. Testmiljön användes för att utreda om ett nätverksorkestreringssystem kan integreras med en återkopplings mekanism. Resultat av projektet presenterar ett sätt att automatiskt upptäcka ett nätverksfel och skicka återkoppling till ett nätverksorkestreringssystem. Nätverksorkestreraren kan sedan detektera och åtgärda felet.
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Larson, Lagerås Max. "Solution Oligomerization of Liraglutide." Thesis, KTH, Tillämpad fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-238680.
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Caldas, Palacios Patricia, Málaga Fabiola Toyoda, and Cisneros Pavel Valencia. "Proyecto empresarial: One Solution." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2017. http://hdl.handle.net/10757/622044.
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El presente proyecto de negocio expone un estudio para validar la factibilidad de realizar un proyecto rentable que a través de una plataforma web conecte a las empleadas domésticas con clientes que necesiten de sus servicios, así los clientes que solicitan el servicio tienen más tiempo disponible para realizar lo que consideren más valioso y las empleadas domésticas (One’s) se benefician con mejores ingresos o ingresos adicionales, atendiendo a clientes cercanos a su domicilio, con lo que también ganan mayor tiempo disponible. La empresa cobra 20% de comisión por cada servicio prestado. El costo del servicio se dará por hora. Nuestro servicio está dirigido a hombres y mujeres que trabajan y/o estudian, por ello no permanecen en sus domicilios y no tienen tiempo para realizar sus labores domésticas. Son personas del NSE C1, B, A2, con estilo de vida moderno y progresista. One Solution tendrá una estructura de financiamiento no tradicional, a través de Fondos de Inversión. One Solution asumirá el 80%, y el inversionista el 20%, conformando el capital social de la empresa de S/. 267,754.63. Considerando la proyección de servicios en el primer año de operaciones se estima una venta de S/. 574,393.68 con un total de 7,560 servicios prestados, así mismo para realizar la evaluación correspondiente del proyecto obtenemos una TIR de 19% en el total del horizonte del proyecto, además el periodo de retorno de inversión es de 5 años, con respecto al inversionista el proyecto es rentable ya que se obtiene un VPN de S/. 74,093.60 es decir no solo se cubre el costo de oportunidad si no que se obtiene una rentabilidad mayor, la TIR es mayor al COK por lo cual el proyecto seguirá siendo rentable ante las variaciones que se pueda presentar en el mercado.<br>Trabajo de investigación
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Engelke, Jennifer. "Wetlands: a flooding solution." Kansas State University, 2012. http://hdl.handle.net/2097/13691.
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Master of Landscape Architecture<br>Department of Landscape Architecture/Regional and Community Planning<br>Tim Keane<br>Wildcat Creek in Riley County, KS has repeatedly flooded in the past 5 years causing significant damage to the watershed, private property, and community livelihood. Strategically placing wetlands throughout the watershed can help reduce stormwater runoff, increase infiltration, and increase wildlife habitat. A watershed assessment was completed to determine the best location for wetlands in the Wildcat Creek Basin. Two watershed-scale plans for wetlands were derived and evaluated based upon estimation of stormwater runoff and quality of wildlife habitat.
Wetlands were then examined and incorporated into existing land cover and land uses at the site-scale for an existing golf course. Three proposals for the nine hole course (for best golf experience, wildlife habitat, and wetland creation) were developed to reflect expansion options from a Par 30 to a Par 34 or 35 course. Each proposal was evaluated based on wetland capacity from estimated stormwater runoff, quality of wildlife habitat, playability of the golf course for all skill levels, and cost of implementation. After this evaluation, the wetland proposal was moved forward and further developed into a proposal that is best suited for the site. Following wetland implementation, stormwater runoff can be collected on-site to prevent runoff and flooding at the golf course and downstream.
In order to solve flooding problems in the Wildcat Creek watershed, a series of wetlands can be implemented at the smaller site scale, like the Wildcat Creek Golf Course site, throughout the watershed. Wetlands are one component of a larger stormwater management system that is needed to reduce flooding of the Wildcat Creek and the flood-prone area of Manhattan, KS.
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Silva, Audrey da. "Agile healthcare solution : nursing." Master's thesis, Instituto Politécnico de Leiria, 2011. http://hdl.handle.net/10400.8/1323.
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Dissertação apresentado à Escola Superior de Tecnologia e Gestão do IPL para obtenção do grau de Mestre em Engenharia Informática - Computação Móvel, orientada pela Professora Doutora Dulce Gonçalves.<br>Actualmente, as novas tecnologias e o aparecimento de equipamentos móveis cada vez
mais compactos e mais potentes fazem com que a computação móvel seja uma área em
expansão sobretudo em sectores que exijam mobilidade e uma elevada componente prática
dos utilizadores. O sector da saúde, particularmente, o da enfermagem é caracterizado por
essas mesmas exigências. Apesar desse facto, existe ainda um número reduzido de soluções
no mercado que sejam capazes de responder às necessidades e especificidades dos
profissionais de enfermagem de uma forma simples, eficiente e segura tendo sido a constatação
e identificação dessa principal lacuna a origem deste projecto.
Deste modo, pretende-se apresentar uma possível solução ao problema anterior através da
elaboração de uma proposta de um produto que permita a gestão do trabalho de rotina relacionado
com o acompanhamento de pacientes realizado por profissionais de enfermagem
(tanto do sector público, privado ou particular).
Desta forma, os principais objectivos deste projecto são: obter uma prova de conceito capaz de validar o funcionamento da arquitectura
proposta, a interoperabilidade das ferramentas de desenvolvimento escolhidas, e o
potencial deste tipo de soluções no mercado actual; dar resposta às principais necessidades diárias dos profissionais de enfermagem
dos diferentes sectores no exercício da sua actividade através da utilização conjugada
de aplicações e equipamentos de diferentes tipos; permitir a efectivação do trabalho definido por uma aplicação Desktop junto do
próprio utente em tempo real e de uma forma simples, eficiente e segura através de
uma aplicação disponibilizada num dispositivo móvel; e obter uma solução adaptável e facilmente expansível (para efeitos de internacionalização
ou de reformulação de interfaces).
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Jeffrey, Matthew I. "A Kinetic and electrochemical study of the dissolution of gold in aerated cyanide solutions: the role of solid and solution phase purity." Curtin University of Technology, School of Applied Chemistry, 1997. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=11442.
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Over the last 100 Years, the cyanidation process has been the most popular method for recovering gold from its ores. Despite this, there are still efforts to improve the efficiency of the process, particularly as ores become more difficult to treat. Many investigators have studied the cyanidation process, although a large proportion of these studies have obtained contradictory results. This thesis presents a kinetic and electrochemical study of the leaching of gold in cyanide solutions, and emphasis is placed on rationalising the conflicting results which have been published in the past.The leaching rate of gold was measured using a rotating electrochemical quartz crystal microbalance, an instrument which allows the simultaneous measurement of electrochemical data and mass changes at the solid-solution interface in real time. A proportion of this project was devoted to the on-going design of this instrument, and a number of modifications are discussed in detail. Initially, the leaching of gold in cyanide solutions was investigated under conditions of high purity. Under these conditions, it was found that the gold surface is blocked by a passive film, presumably AuCN. The presence of such a film results in the reaction being chemically controlled, and under typical cyanidation conditions (4 mM cyanide, pH 10.0), the rate of dissolution is very low. These kinetic results were supported by complimentary electrochemical studies, which showed that gold is passive in the potential region where cyanidation occurs.The second part of this thesis presents a study of the effect of system purity on the leaching of gold in cyanide solutions. Solution phase purity was investigated by adding controlled amounts of lead or silver to the leach solutions. It was found that in the presence of low concentrations of lead, the dissolution of gold in 20 mM cyanide solutions was oxygen ++<br>diffusion controlled (as compared to chemical control for gold in the absence of lead). However, high concentrations of lead were found to be detrimental to the leaching process. It is believed that the role of lead is to modify the surface by cementation, hence reducing the effect of the passive film. Silver was also found to be effective at reducing passivation, and the role of silver believed to be similar to that of lead. It was found that unlike lead, high concentrations of silver are not detrimental to the dissolution of gold in cyanide solutions.Solid phase purity was also found to be important in the leaching of gold, and it was found that the leaching of a gold sample which contains 1 % silver is diffusion controlled. This finding is important from an industrial viewpoint, as most native gold contains some silver. Consequently, attempts were made to rationalise the leaching of gold/silver with current plant practice. Discussion on the effect of cyanide and oxygen concentrations, temperature and lead addition is presented.
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Seuring, Jan [Verfasser], and Seema [Akademischer Betreuer] Agarwal. "Polymers with Upper Critical Solution Temperature in Aqueous Solution / Jan Seuring. Betreuer: Seema Agarwal." Marburg : Philipps-Universität Marburg, 2012. http://d-nb.info/102807249X/34.
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Fickel, Dustin W. "Using solid-solution aqueous-solution theories to model the crystallization of ZSM-5 zeolites." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 87 p, 2007. http://proquest.umi.com/pqdweb?did=1338918681&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Jonsson, Caroline. "Modeling of glyphosate and metal-glyphosate speciation in solution and at solution-mineral interfaces." Doctoral thesis, Umeå : Department of Chemistry, Umeå Univ, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1074.
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Persson, Gerd. "Amphiphilic Molecules in Aqueous Solution." Doctoral thesis, Umeå University, Chemistry, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-90.
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<p>The aim of this thesis was to investigate amphiphilic molecules in aqueous solution. The work was divided into two parts. In the first part the effects of different counterions on phase behavior was investigated, while the second part concerns the 1-monooleoyl-rac-glycerol (MO)/n-octyl-β-D-glucoside (OG)/2H2O-system. </p><p>The effects of mixing monovalent and divalent counterions were studied for two surfactant systems, sodium/calcium octyl sulfate, and piperidine/piperazine octanesulfonate. It was found that mixing monovalent and divalent counterions resulted in a large decrease in cmc already at very low fractions of the divalent counterion. Moreover, the degree of counterion binding for piperidine in the piperidine/piperazine octanesulfonate system was much higher than predicted, probably due to the larger hydrophobic moiety of piperidine.</p><p>The effects of hydrophobic counterions were studied for eight alkylpyridinium octanesulfonates (APOS). The results were discussed in terms of packing constraints. The anomalous behavior of the 2H2O quadrupolar splittings in the lamellar phases was explained by the presence of two or more binding sites at the lamellae surface. </p><p>The MO/OG/water system was studied in general and the MO-rich cubic phases in particular. When mixing MO and OG it was found that OG-rich structures (micelles, hexagonal and cubic phase of space group Ia3d) could solubilize quite large amounts of MO, while the MO-rich cubic structures where considerable less tolerant towards the addition of OG. The micelles in the OG-rich L1 phase were found to remain rather small and discrete in the larger part of the L1 phase area, but at low water concentration and high MO content a bicontinuous structure was indicated. Only small fractions of OG was necessary to convert the MO-rich cubic Pn3m structure to an Ia3d structure, and upon further addition of OG a lamellar (La) phase formed. Since the larger part of the phase diagram contains a lamellar structure (present either as a single La phase or as a dispersion of lamellar particles together with other phases), the conclusion was that introducing OG in the MO structures, forces the MO bilayer to become more flat. Upon heating the cubic phases, structures with more negative curvature were formed. The transformation between the cubic structures required very little energy, and this resulted in the appearance of additional peaks in the diffractograms.</p>
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O'Mullane, William. "Implementing the Gaia Astrometric Solution." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/83861.
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As is the way with books in general this document is presented in the form of chapters (seven in number) devoted to individual topics relating to the overall topic of Gaia astrometric data processing. We progress logically from the satellite to the equations for the astrometry to the implementation of a software system to process Gaia observations.
After this we look at a few key astrophysical issues for Gaia and explain tests which have been carried out, using the implementation, concerning these effects. A few appendices provide additional information.
Here an overview paragraph is provided for each of the chapters:
This introductory chapter Section 1 provides an overview of the work as well as an overview of the satellite hardware for the reader unfamiliar with Gaia.
In Section 2 the equations underpinning the astrometric solution are explained and developed toward the algorithms actually coded in the system.
Section 3 provides details of the Java software framework which hosts the equations previously described. The framework itself has been tuned to effectively process Gaia observations and is the main original content of the thesis. This system is known as the Astrometric Global Iterative Solution or AGIS.
Having looked at the implementation, a few of the astrophysical effects and design decisions which influence the solution are described in Section 4. Although no data has yet been received from Gaia, extensive simulations have been performed in the Gaia community. Some of the AGIS tests relating to the astrophysical phenomena described in Section 4 are reported in Section 5. In this manner a demonstration of the effectiveness of AGIS is presented.
A discussion and overview of the development approach adopted for A GIS is presented in Section 6. The eXtreme programming approach is particularly suited to science development and worked well for this project in the form presented.
Brief conclusions are drawn in Section 7.
Appendix A provides a primer on Quaternions which are used for attitude modelling.
A complete list of the mind boggling acronyms used in this document appears in Appendix B.
Finally some published papers are included in Appendix C.<br>Esta tesis presenta el marco numérico y computacional para la solución astrométrica Gaia. También cubre las consideraciones astrofísicas relativas a la solución y los aspectos relacionados con la gestión de la implementación de un sistema tan complejo.
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Hensley, Katrina Ludden Fredrick. "ATM security via "Stargate" solution /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA370810.
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Thesis (M.S. in Computer Science) Naval Postgraduate School, September 1999.<br>"September 1999". Thesis advisor(s): Geoffrey G. Xie. Includes bibliographical references (p. 71-72). Also available online.
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Woywood, Brett G. "Xeriscaping: A Common Sense Solution." University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/554323.
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Clarke, Nigel. "Numerical solution of financial derivatives." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389047.
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Yeung, May T. "Free radical studies in solution." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306870.
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Thomson, Ross. "Solution structure of hMBD1 CXXC1." Thesis, University of Glasgow, 2011. http://theses.gla.ac.uk/2714/.
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Methylation of CpG dinucleotides is the major epigenetic modification of mammalian DNA which results in the remodelling of transcriptionally active euchromatin to transcriptionally inactive heterochromatin. Recognition of methylated CpG by methylated DNA binding proteins, the MBD family, the Kaiso zinc finger family and the SRA domain proteins results in deacetylation and methylation of histone side chains through the recruitment of HDAC and HMT enzymes. Methylation of DNA is a heritable process ensuring Methylation dependant transcriptional repression is passed from mother to daughter cell during replication. Some of the proteins involved in this chromatin remodelling, MBD1, DNMT1, MLL, and CFP1 contain CXXC domains. hMBD1 contains 2 or 3 CXXC domains depending on the splice variant, with only the third CXXC domain shown to bind CpG dinucleotides. This thesis describes the work done to elucidate the structure of hMBD1 CXXC1 and to investigate hMBD1 CXXC12 di-domain by NMR spectroscopy and biochemical characterisation. The hMBD1 CXXC1 & CXXC12 domains were successfully over expressed in E. coli and purified. Unlabelled and uniformly 15N labelled proteins were produced for nuclear magnetic resonance (NMR) studies. Assignment of NMR spectra was carried out and constraints generated enabling structure determination of hMBD1 CXXC1 and to investigate the relationship between CXXC1 and CXXC2 of hMBD1. The solution structure of hMBD1 CXXC1 determined here was compared to the previously determined solution structure of hMLL CXXC in order to investigate their differences in DNA binding. NOE data from hMBD1 CXXC1 and CXXC12 are compared in order to investigate the domain structure of CXXC12. DNA titration of hMBD1 CXXC1 showed no significant interaction with a single CpG oligo while the loop region of hMBD1 CXXC1 differs significant in both structure and surface charge suggesting the loop region to be important for DNA binding. The recorded NOE data of hMBD CXXC12 suggests the two CXXC domains form a globular rather than a linear structure
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Yang, Lixu. "Non-covalent interactions in solution." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8097.
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Non-covalent interactions taking place in solution are essential in chemical and biological systems. The solvent environment plays an important role in determining the geometry and stability of interactions. This thesis examines aromatic stacking interactions, alkyl-alkyl interactions, edge-to-face aromatic interactions, halogen bonds and hydrogen…hydrogen interactions in solution. Chapter 1 briefly introduces the different classes of non-covalent interactions, in addition to the state-of-the-art models and methods for investigating these weak interactions. The chapter finishes with a focus on dispersion interaction in alkanes and arenes. Chapter 2 investigates dispersion interactions between stacked aromatics in solution using a new class of complexes and thermodynamic double mutant cycles (DMCs). In extended aromatics, dispersion was detected as providing a small but significant contribution to the overall stacking free energies. Chapter 3 concerns the experimental measurement of alkyl-alkyl dispersion interactions in a wide range of solvents using Wilcox torsion balances. The contribution of dispersion interactions to alkyl-alkyl association was shown to be very small, with DMC, QSPR method and Hunter's solvation model. Chapter 4 studies edge-to-face aromatic interactions in series of solvents. In the open system, edge-to-face aromatic interactions were found to be sensitive to the solvent environment. The solvent effects were complicated and cannot be rationalised by a single parameter. Further analysis is needed. Chapter 5 describes a preliminary approach to investigate organic halogen…π interactions in solution using supramolecular complexes and torsion balances. Chapter 6 is a preliminary investigation of the ability of hydrogen atoms to act as H bond acceptors in silane compounds. Computations and 1H NMR demonstrated a weak interaction between silane and perfluoro-tert-butanol.
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Ireland, Elizabeth Rosa. "Developing a better buttermilk solution." Thesis, University of Canterbury. Master of Engineering Management, 2014. http://hdl.handle.net/10092/8946.
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This document is a project document based on finding a more economical way to use buttermilk at Synlait Milk Ltd. Buttermilk is a by-product from the Anhydrous Milk Fat (AMF), which is the concentration of cream. It is a problem for many dairy companies in New Zealand, including Synlait. the problems arise due to the opportunity cost of using it. It is a low value product, but made in substantial quantities at a ratio of 55% buttermilk to 45% AMF. This feasibility study contains an analysis on buttermilk at Synlait, including opportunity costs and benefits with processing buttermilk into buttermilk powder. It provides insight into the feasibility of implementing a ‘washed cream’ process at Synlait which would provide an alternative method for using buttermilk. The feasibility of separating buttermilk components for separate use is also examined. Overall, this project provides a more economical solution for buttermilk use at Synlait Milk Ltd.
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梁耀華 and Yew-wah Leung. "Finite element solution on microcomputers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31209300.
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Smith, Edmund. "Parallel solution of linear programs." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8833.
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The factors limiting the performance of computer software periodically undergo sudden shifts, resulting from technological progress, and these shifts can have profound implications for the design of high performance codes. At the present time, the speed with which hardware can execute a single stream of instructions has reached a plateau. It is now the number of instruction streams that may be executed concurrently which underpins estimates of compute power, and with this change, a critical limitation on the performance of software has come to be the degree to which it can be parallelised. The research in this thesis is concerned with the means by which codes for linear programming may be adapted to this new hardware. For the most part, it is codes implementing the simplex method which will be discussed, though these have typically lower performance for single solves than those implementing interior point methods. However, the ability of the simplex method to rapidly re-solve a problem makes it at present indispensable as a subroutine for mixed integer programming. The long history of the simplex method as a practical technique, with applications in many industries and government, has led to such codes reaching a great level of sophistication. It would be unexpected in a research project such as this one to match the performance of top commercial codes with many years of development behind them. The simplex codes described in this thesis are, however, able to solve real problems of small to moderate size, rather than being confined to random or otherwise artificially generated instances. The remainder of this thesis is structured as follows. The rest of this chapter gives a brief overview of the essential elements of modern parallel hardware and of the linear programming problem. Both the simplex method and interior point methods are discussed, along with some of the key algorithmic enhancements required for such systems to solve real-world problems. Some background on the parallelisation of both types of code is given. The next chapter describes two standard simplex codes designed to exploit the current generation of hardware. i6 is a parallel standard simplex solver capable of being applied to a range of real problems, and showing exceptional performance for dense, square programs. i8 is also a parallel, standard simplex solver, but now implemented for graphics processing units (GPUs).
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Ballenger, Eric E. "Composition and the comics solution." Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1337187.
Full textAbstract:
In this creative project, I propose that comics can be used fruitfully to introduce undergraduates to the image-word dynamic, helping them become betters critics, more thoughtful consumers, and more effective creators of images. In addition, I argue that such a course of study be housed in an undergraduate rhetoric and composition major. Therefore, this project accomplishes three goals: it explores the rhetorical function of comics; second, it justifies the inclusion of comics in an undergraduate rhetoric-composition program; and, third, it provides a master syllabus for four classes that would provide the experience necessary to students wishing to study visual, verbal, and visual-verbal rhetorics.<br>Department of English
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Williams, Gary S. "Reconciling representationalism : an ontological solution." Honors in the Major Thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1149.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Arts and Humanities<br>History
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Hensley, Katrina, and Fredrick Ludden. "ATM security via "Stargate" solution." Thesis, Monterey, California: Naval Postgraduate School, 1999. http://hdl.handle.net/10945/13683.
Full textAbstract:
Approved for public release, distribution unlimited.<br>In today's world of integrating voice, video and data into a single network, Asynchronous Transfer Mode (ATM) networks have become prevalent in the Department of Defense. The Department of Defense's critical data will have to pass through public networks, which causes concern for security. This study presents an efficient solution aimed at authenticating communications over public ATM networks. The authenticating device, Stargate, utilizes a high speed, low level authentication protocol that offers the low cost, flexibility, and extensibility of software, while still capable of yielding performance comparable to hardware based authentication.
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Agena, Sabine Martina. "Modelling of protein solution properties." Thesis, University College London (University of London), 1997. http://discovery.ucl.ac.uk/1317807/.
Full textAbstract:
The research pursued in this work concentrates on modelling two protein solution properties: activity coefficients and solubility. While modelling protein solubility was the prime objective activity coefficients were considered first as deviation from ideal solution behaviour was expected to occur for protein containing systems. Activity coefficients of protein related compounds, amino acids and peptides, were studied first hypothesising that these compounds represent proteins and because activity coefficient data is documented for those compounds but not for proteins. The predictive UNIFAC model was studied but failed, which led to examination of the related UNIQUAC model. The objective of the work was the creation of a model base, which was achieved. This model base was then utilised for protein containing systems. Protein activity coefficient data was made available and could be successfully modelled using the established framework. Furthermore, the activity coefficient data was examined over different pH and temperature ranges, salt types and concentrations. A qualitative comparison of the data to protein solubility results of other researchers was pursued and used to confirm the model approach. Having demonstrated that protein solubility was qualitatively represented through protein activity coefficients a quantitative solubility approach was addressed next. For two protein systems the solubility behaviour was modelled successfully as a function of salt concentration and temperature. Findings of other researchers were integrated into the discussion of the model results while also the calculated protein activity coefficients were examined and a qualitative confirmation of the model was achieved. The models used in this study for the description of two protein solution properties, when applied to six different proteins over various pH and temperature ranges, salt types and concentrations showed qualitative and quantitative success. They should find application to many other protein systems.
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Lu, Yanling. "Solution conformation of engineered antibodies." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442304.
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