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1

Raine, R. D. "Sheffield's low carbon heat network and its energy storage potential." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/16561/.

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This research investigates the potential for integration of heat storage into district heating networks, focusing on three varied case studies in the city of Sheffield. Each case study has implications for the future development of district heating and heat storage. The first case study concerned the potential for heat storage operating alongside proposed CHP units at the University of Sheffield. Heat demand data from the university was analysed to understand variations due to occupancy, weather conditions and other factors. Scenario modelling using Visual Basic algorithms simulated the operat
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Ratcliffe, Naomi. "Potential of a compact low energy proton accelertor for medical applications." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/23711/.

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This thesis explores the potential of a compact low energy (<10MeV) proton accelerator for medical applications such as the production of neutrons for cancer neutron therapy and the production of SPECT (Single Photon Emission Computed Tomography) and PET (Positron Emission Tomography) radioisotopes. During the course of this study the simulation code GEANT4 was used to study yields of these neutrons and isotopes from the typically low threshold high cross-­‐section (p,n) reactions. Due to the limits of the current models within GEANT4 some development of a new data-­‐driven model for low energ
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Ahmed, Abdullahi. "Earth-air heat exchangers and their potential for low-energy cooling of buildings in the UK." Thesis, University of Brighton, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506515.

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There is global effort to reduce the emission of greenhouse gases that causes global climate change, of which significant percentage is related to buildings. Uses of passive and low-energy strategies for indoor thermal environmental control are being explored by researchers to reduce the operational energy consumption in bUildings. One of these options is the use of thermal mass of the ground as a heat source or heat sink for cooling and heating of indoor spaces in bUildings. Earth-air heat exchanger (EAHX) is a subterranean ventilation system that can be used to pre-coollpre-heat building ven
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Amirrasouli, Benyamin. "Mechanical properties of low density fibre-reinforced cellular concrete and its energy absorption potential against air blast." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/mechanical-properties-of-low-density-fibrereinforced-cellular-concrete-and-its-energy-absorption-potential-against-air-blast(a8457a33-c479-4db9-adbc-579599783bc9).html.

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The scope of this study is to establish extensive material tests to determine the mechanical properties of cellular concrete and evaluate its potential as energy absorption material against air blast load. This study includes a literature review of existing studies on cellular concrete, proportioning, and its mechanical properties, together with studies on the properties and application of other foams such as aluminium and polymer foams. It is concluded that, unlike other foam materials, there is a lack of systematic studies on the mechanical properties of cellular concrete especially for dens
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Bellman, Karen L. "Identification of Low Potential Onset of Concentration Polarization and Concentration Polarization Mitigation in Water Desalination Membranes." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1325109865.

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Kamal, Majd. "Potential for low temperature district heating system : Integrating 4th generation district heating system with existing technology." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35816.

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This project presents a feasibility study and an investigation of the potential for low temperature district heating system in Västerås. The investigation treats integrations possibilities for 4GDH (4th Generation District Heating) in Kungsängens area in Västerås, which is undergoing a large-scale building-up and construction.  The study is conducted for the company Mälarenergi AB. The advantages of 4GDH technology are identified and analyzed, where energy effectiveness and economic benefits aspects were concluded. Problems with existing technology and higher cooling demand expectations drive
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Mota, Babiloni Adrián. "ANALYSIS OF LOW GLOBAL WARMING POTENTIAL FLUORIDE WORKING FLUIDS IN VAPOUR COMPRESSION SYSTEMS. EXPERIMENTAL EVALUATION OF COMMERCIAL REFRIGERATION ALTERNATIVES." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62680.

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[EN] Climate change is one of the short term threats for the humanity because it can affect seriously to the environment and, consequently, to vegetal and animal life. If it is not stopped in next years, maybe this effect will be irreversible. Climate change is produced by anthropogenic emissions of Greenhouse Gas to Earth's atmosphere. Vapour compression systems are one of the main contributors to this phenomenon. Among them, commercial refrigeration applications, through HFC usage, can be highlighted. Since 1990s, developed countries supermarkets are using refrigerants (mainly R134a, R404A a
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Hajek, Martin. "Analysis of potential applications and business models for battery energy storage systems on a low and medium voltage distribution systems in Brazil." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/53408.

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Orientador : Prof. Dr. Alexandre Rasi Aoki<br>Coorientadores : Prof. Dr. Patricio Rodolfo Impinnisi ; Prof. Dr. Hans-Georg Schweiger<br>Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia Elétrica. Defesa: Curitiba, 22/05/2017<br>Inclui referências : p. 221-227<br>Resumo: A escassez de recursos, o aquecimento global e os desastres naturais aumentaram a conscientização ambiental e desencadearam notáveis esforços de transformação em todo o mundo, afastando da geração baseada em fontes fósseis para a geração de recursos energéticos
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9

Kanike, Vanaja. "“Acid-spike” effect in spurs/tracks of the low/high linear energy transfer radiolysis of water : potential implications for radiobiology and nuclear industry." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9711.

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Résumé : Les ions hydronium (H3O + ) sont formés, à temps courts, dans les grappes ou le long des trajectoires de la radiolyse de l'eau par des rayonnements ionisants à faible transfert d’énergie linéaire (TEL) ou à TEL élevé. Cette formation in situ de H3O + rend la région des grappes/trajectoires du rayonnement temporairement plus acide que le milieu environnant. Bien que des preuves expérimentales de l’acidité d’une grappe aient déjà été signalées, il n'y a que des informations fragmentaires quant à son ampleur et sa dépendance en temps. Dans ce travail, nous déterminons les conce
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Майборода, Мирослав Олегович, та Myroslav Maiboroda. "Обґрунтування можливості одержання низькопотенціальної теплоти шляхом удосконалення сонячних колекторів". Master's thesis, ТНТУ імені Івана Пулюя, 2019. http://elartu.tntu.edu.ua/handle/lib/30192.

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У магістерській роботі обґрунтовано можливість застосування сонячних колекторів для систем теплопостачання. Удосконалена методика та розроблений алгоритм розрахунку дає змогу встановити основні параметри систем теплопостачання із використанням сонячних колекторів.<br>In the master's work the possibility of using solar collectors for heat supply systems is substantiated. The advanced methodology and the developed calculation algorithm allow to set the basic parameters of the heat supply systems using solar collectors.<br>ПЕРЕЛІК УМОВНИХ СКОРОЧЕНЬ...6 ВСТУП...7 РОЗДІЛ 1. ЛІТЕРАТУРНИЙ ОГЛЯД...1
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11

Jahn, Jan. "Úpravy čerpadla pro provoz v turbinovém režimu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401576.

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Hydraulic design of a hydrodynamic machine is designed to achieve a high value of energy transformation efficiency. Pumps and turbines have some different typical features in hydraulic design. With the aid of computational fluid dynamics, adjustments of the hydraulic parts of a standard centrifugal pump are assessed with the aim to increase hydraulic efficiency of the pump running as turbine. The impeller, volute casing and added draft tube are discussed.
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Charvátová, Marie. "Vyhodnocení provozních dat tepelného čerpadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401567.

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This diploma thesis deals with the issue of heat pumps as devices using low-potential heat of the surrounding environment for heating of buildings. In the theoretical part of the thesis there are described various types of these devices, the sources of low-potential heat and the possibilities of heat energy accumulation. The practical part of the thesis is focused on processing and evaluation of operational data of air/water heat pump used for heating of family house and assessment of importance of accumulation tank in heating system. Part of the thesis is also a proposal of optimization of he
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13

Mannsfeld, Stefan. "Ordering in weakly bound molecular layers: organic-inorganic and organic-organic heteroepitaxy." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1098888571984-95956.

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It is an aim of this work to provide insight into the energetic influence on the ordering of molecular thin films on crystalline substrates. Here, the term substrate either refers to inorganic crystal surfaces or highly ordered layers of another organic molecular species. In order to calculate the total interface potential of extended molecular domains, a new calculation technique (GRID technique) is developed in the first part of this work. Compared to the standard approach, this method accelerates the potential calculation drastically (times 10000). The other parts of the thesis are dedicate
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14

Пташник, Олег Степанович, та Oleh Ptashnyk. "Термоелектромеханічний низькопотенційний конвертер теплової енергії". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, кафедра електричної інженерії,Тернопіль, Україна, 2021. http://elartu.tntu.edu.ua/handle/lib/36660.

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Дуже швидко, всього протягом XX століття, людство витратило найціннішу сировину, що створювалася на Землі протягом сотень мільйонів років, - нафту. Витратило не розумним чином: близько половини нафти йде на виробництво палива для транспортних засобів. Крім цього, вкрай негативний вплив на довкілля відбувається внаслідок вилучення з надр нашої планети органічного палива. Проблеми пов’язані як із видобутком палива, так і з його транспортуванням і, найголовніше, з його спалюванням, оскільки при спалюванні навіть «чистих» видів палива утворюється багато шкідливих речовин, які надходять у навколишн
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15

Oubaid, Rania. "Contribution à la modélisation du champ électromagnétique dans les dispositifs basses fréquences par la méthode des moments." Phd thesis, Toulouse, INPT, 2014. http://oatao.univ-toulouse.fr/13834/1/oubaid.pdf.

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La modélisation numérique est devenue incontournable dans le monde de la conception industrielle et de la recherche scientifique. Les problèmes à résoudre étant de plus en plus complexes, il est nécessaire d'adopter une approche adaptée au problème traité. Dans les domaines d'application de l'électromagnétisme basses fréquences, la méthode des éléments finis (MEF) est la méthode de référence. Actuellement, de plus en plus de dispositifs ouverts comportant de grands entrefers sont développés. Dans ce genre de problèmes, la MEF n'est pas optimale car elle nécessite de mailler un grand volume d'a
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16

Shyrokorad, D. V., and G. V. Kornich. "Molecular-Dynamics Simulation of Metal Atomic Clusters under Low-Energy Bombardment." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42644.

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The evolution of free copper atomic clusters under low energy Ar ion bombardment is simulated using the classical molecular dynamics. The clusters consisting of 26, 78, and 390 atoms have been studied at a impact energy ranging from 1 to 800 eV. Interatomic interactions between copper atoms were described by the many body Ackland potential, whereas the interaction of copper atoms with argon ions has been described using the Ziegler–Biersack–Littmark potential. Time dependences of the temperature and potential energy as well as values of sputtering yields of free clusters under the ion bombard
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17

Gaslac, Lucero, Sebastian Willis, Grimaldo Quispe, and Carlos Raymundo. "A hybrid energy system based on renewable energy for the electrification of low-income rural communities." Institute of Physics Publishing, 2018. http://hdl.handle.net/10757/624632.

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Electrification of low-income rural areas that have a limited connection or no access to electrical grids is one of the most demanding challenges in developing countries such as Peru. The international commitment to stop global warming and the reduction in the cost of renewable sources of energy have reduced the prices of fossil fuels in some cases. This has opened the way to the current research which proposes a hybrid energy system (HES) based on the use of renewable sources of energy. Therefore, a renewable electricity system (HRES) was set up at the village of Monte-Catache in the Cajamarc
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18

Myhren, Jonn Are. "Potential of Ventilation Radiators : Performance evaluation by numerical, analytical and experimental means." Doctoral thesis, KTH, Strömnings- och klimatteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31813.

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Energy consumption for heating and ventilation of buildings is still in 2011considered far too high, but there are many ways to save energy and construct lowenergy buildings that have not been fully utilised. This doctoral thesis has focused onone of these - low temperature heating systems. Particular attention has been given tothe ventilation radiator adapted for exhaust-ventilated buildings because of itspotential as a low energy consuming, easily-operated, environmentally-friendlysystem that might also ensure occupant health and well-being. Investigations were based on Computational Fluid D
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Wagner, Christian. "Potential Energy Minimization as the Driving Force for Order and Disorder in Organic Layers." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-38242.

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The topic of this work is the structural characterization and theoretical modeling of organic single and heterolayers. The growth of sub-monolayers and monolayers (ML) of the two polycyclic aromatic hydrocarbons quaterrylene (QT) and hexa-peri-hexabenzocoronene (HBC) on Ag(111) and Au(111) was investigated. A transition from a disordered, isotropic phase to an ordered phase with increasing coverage was found. The lattice of the ordered phase turned out to be coverage dependent. The intermolecular potential was modeled including Coulomb and van der Waals interaction by a force-field approach. T
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Le, Roux Daniël Francois. "Investigation, development and testing of a low cost Solar Heat Barrow (SHB) and purifier / D.F. le Roux." Thesis, North-West University, 2003. http://hdl.handle.net/10394/204.

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Many rural communities in South Africa do not have running water or electricity. The fetching and heating of water is therefore a time consuming and expensive daily ritual. The use of energy sources such as wood or coal are not readily available and cause environmental pollution. Although solar water heaters are commonly available in South Africa, they are very seldom used in rural areas. Whilst this can mostly be attributed to a high system cost, current designs also do not cater for specific rural problems such as the transporting or purification of water. A prototype model, designed with su
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Mukherjee, Sromona. "Potential Mechanisms Underlying Adaptive Thermogenesis in Lean and Obesity-Prone Rats." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1461015941.

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Vasseur, Guillaume. "Étude par ARPES et STS des propriétés éléctroniques de réseaux métalliques et organiques nanostructurés." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0151/document.

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Dans ce travail nous démontrons, au travers de deux études, l'intérêt fondamental du couplage des techniques de photoémission résolue en angle (ARPES) et de spectroscopie tunnel (STS) dans l'analyse des propriétés électroniques d'interfaces nanostructurées. Dans la première partie, nous présentons une méthodologie permettant de déduire le potentiel de surface induit par la reconstruction triangulaire d'une monocouche d'Ag/Cu(111). Cette méthode est basée sur la mesure des gaps caractérisant la structure de bande de l'état de Shockley du système aux points de haute symétrie de la zone de Brillo
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Jones, Alexander M. "Fuel Yield Potential of Field Grown Agave americana L. Based on Water Soluble Carbohydrates, Acid Extractable Carbohydrates, and Enzymatic Digestibility Compared to Other Advanced Biofuel Feedstocks." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1501173804378294.

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Lee, Sebastian James Rice. "Combining High- and Low-Level Electronic Structure Theories for the Efficient Exploration of Potential Energy Surfaces." Thesis, 2021. https://thesis.library.caltech.edu/13984/18/Lee_Sebastian_2020.pdf.

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<p>The efficient exploration and characterization of potential energy surfaces paves the way for the theoretical elucidation of complex chemical processes. A potential energy surface arises from the application of the Born-Oppenheimer approximation when solving the Schrödinger equation for a molecular system. The extraction of energies and nuclear gradients from the Schrödinger equation is typically cost-prohibitive, which has inspired a plethora of approximations. In this thesis, we present the development of embedding and machine learning methodologies that provide fast and accurate energies
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Wang, Yu-Hsien, and 汪育賢. "Detecting System of Potential Issues – A Case Study of Green Energy and Low Carbon in Social Media." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u8nvaf.

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碩士<br>國立暨南國際大學<br>資訊管理學系<br>103<br>In recent years, social media emphasize the interaction between user and user, user can express their opinions or their views on issues through social media .User-generated content contains a number of important information, which caught attention of the organizations and enterprises. Social media's influence on society is also growing. In addition, how to retrieve important information in social media is one major problem for Strategists. In the past few years, topic detection became an important helper for organizations or enterprises to understand the issu
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Peterseim, JHM. "Enabling concentrating solar power in Australia : an investigation of the benefits and potential role of concentrating solar power and non-conventional fuel hybrid plants in Australia's transition to a low-carbon energy future." Thesis, 2014. http://hdl.handle.net/10453/30341.

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University of Technology, Sydney. Institute for Sustainable Futures.<br>After decades of stability the Australian electricity market is undergoing changes. Current government targets aim to reduce greenhouse gas emissions by 5% and raise renewable electricity production to 45 TWh by 2020. In addition, increases to natural gas prices, aging generation assets and falling electricity demand have had an impact in recent years. Uncertainties exist around current policies, including the carbon pricing mechanism and the renewable energy target, but in light of Australian and international ambitions
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Кравченко, Сергій Іванович. "Аналіз можливості використання низькопотенційної теплоти для потреб багатоквартирних будинків". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3762.

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Кравченко С. І. Аналіз можливості використання низькопотенційної теплоти для потреб багатоквартирних будинків : кваліфікаційна робота магістра спеціальності 144 "Теплоенергетика" / наук. керівник О. І. Осаул. Запоріжжя : ЗНУ, 2020. 84 с.<br>UA : Робота викладена на 84 сторінках друкованого тексту, містить 12 таблиць, 28 рисунків. Перелік посилань включає 40 джерел з них на іноземній мові 1. Особлива увага приділена низькопотенційним поновлюваним джерелам енергії відхідних вентиляційних газів багатоповерхових будинків. Для визначення можливого потенціалу та економічного обґрунтування доцільност
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(9525959), Reza Asadpour. "EXPLORING THE POTENTIAL OF LOW-COST PEROVSKITE CELLS AND IMPROVED MODULE RELIABILITY TO REDUCE LEVELIZED COST OF ELECTRICITY." Thesis, 2020.

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<div>The manufacturing cost of solar cells along with their efficiency and reliability define the levelized cost of electricity (LCOE). One needs to reduce LCOE to make solar cells cost competitive compared to other sources of electricity. After a sustained decrease since 2001 the manufacturing cost of the dominant photovoltaic technology based on c-Si solar cells has recently reached a plateau. Further reduction in LCOE is only possible by increasing the efficiency and/or reliability of c-Si cells. Among alternate technologies, organic photovoltaics (OPV) has reduced manufacturing cost, but t
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Limpasurat, Akkharachai. "Artificial Geothermal Energy Potential of Steam-flooded Heavy Oil Reservoirs." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8323.

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This study presents an investigation of the concept of harvesting geothermal energy that remains in heavy oil reservoirs after abandonment when steamflooding is no longer economics. Substantial heat that has accumulated within reservoir rock and its vicinity can be extracted by circulating water relatively colder than reservoir temperature. We use compositional reservoir simulation coupled with a semianalytical equation of the wellbore heat loss approximation to estimate surface heat recovery. Additionally, sensitivity analyses provide understanding of the effect of various parameters on heat
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Li, Jing. "Theoretical studies on the low-lying electronic states of N2O: From structural aspects to reaction dynamics." Doctoral thesis, 2014. http://hdl.handle.net/10316/26458.

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This thesis is organized as follows: Part I concerns with the theoretical background, Part II refers to publications, Finally, the main achievements are summarized and further possible applications are outlined in Part III.<br>Tese de doutoramento em Química (Pré-Bolonha), Especialidade de Química Teórica, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>Theoretical study on the N2 O molecular system is presented in this Ph.D. thesis: starting from the construction of a global potential energy surface for its ground electronic state, to dynamical studies of collis
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Wagner, Christian. "Potential Energy Minimization as the Driving Force for Order and Disorder in Organic Layers." Doctoral thesis, 2009. https://tud.qucosa.de/id/qucosa%3A25311.

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The topic of this work is the structural characterization and theoretical modeling of organic single and heterolayers. The growth of sub-monolayers and monolayers (ML) of the two polycyclic aromatic hydrocarbons quaterrylene (QT) and hexa-peri-hexabenzocoronene (HBC) on Ag(111) and Au(111) was investigated. A transition from a disordered, isotropic phase to an ordered phase with increasing coverage was found. The lattice of the ordered phase turned out to be coverage dependent. The intermolecular potential was modeled including Coulomb and van der Waals interaction by a force-field approach. T
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