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Dissertations / Theses on the topic 'Optimal energy efficiency'

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1

Rodríguez-Urdaneta, Alejandro. "Geographical Mapping of the Building Envelope Surface Optimal Optical Properties Minimizing the Energy used to Maintain Indoor Conditions." Thesis, Högskolan Dalarna, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-35491.

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Several studies have shown that the buildings envelope optical properties are important in terms of energy use and thermal comfort level. However, no study has been found in regard of the optimal optical properties for the building envelope. Moreover, developments in the coil-coating industry have made possible to design cost effective optical selective surfaces for the construction sector. Based on the above mentioned, this study pretends to map the envelope optimal optical properties minimizing the energy use for large-open-volume buildings locates in Stockholm, Copenhagen, Liverpool, Amster
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Khazaii, Javad. "Effects of sub-optimal component performance on overall cooling system energy consumption and efficiency." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43707.

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Predicted cooling system performance plays an important role in choices among alternative system selections and designs. When system performance is expressed in proper indicators such as "overall system energy consumption" or "overall system efficiency", it can provide the decision makers with a quantitative measure of the extent to which a cooling system satisfies the system design requirements and objectives. Predictions of cooling system energy consumption and efficiency imply assumptions about component performance. Quantitative appraisal of the uncertainty (lack of knowledge) in these ass
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Khodabakhshian, Mohammad. "Improving Fuel Efficiency of Commercial Vehicles through Optimal Control of Energy Buffers." Doctoral thesis, KTH, Mekatronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-181071.

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Fuel consumption reduction is one of the main challenges in the automotiveindustry due to its economical and environmental impacts as well as legalregulations. While fuel consumption reduction is important for all vehicles,it has larger benefits for commercial ones due to their long operational timesand much higher fuel consumption. Optimal control of multiple energy buffers within the vehicle proves aneffective approach for reducing energy consumption. Energy is temporarilystored in a buffer when its cost is small and released when it is relativelyexpensive. An example of an energy buffer is
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4

El-khawas, Ihab N. "The optimal design of buildings : a life-cycle approach to energy efficiency /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948158626783.

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5

Aljoaba, Sharif. "ACTIVE OPTIMAL CONTROL STRATEGIES FOR INCREASING THE EFFICIENCY OF PHOTOVOLTAIC CELLS." UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/18.

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Energy consumption has increased drastically during the last century. Currently, the worldwide energy consumption is about 17.4 TW and is predicted to reach 25 TW by 2035. Solar energy has emerged as one of the potential renewable energy sources. Since its first physical recognition in 1887 by Adams and Day till nowadays, research in solar energy is continuously developing. This has lead to many achievements and milestones that introduced it as one of the most reliable and sustainable energy sources. Recently, the International Energy Agency declared that solar energy is predicted to be one of
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Fan, Yuling. "Optimal energy-efficiency retrofit and maintenance planning for existing buildings considering green building policy compliance." Thesis, University of Pretoria, 2005. http://hdl.handle.net/2263/66191.

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Reducing global energy consumption is a common challenge faced by the human race due to the energy shortage and growing energy demands. The building sector bears a large responsibility for the total energy consumption throughout the world. In particular, it was concluded that existing buildings, which are usually old and energy-inefficient, are the main reason for the high energy consumption of the building sector, in view of the low replacement rate (about 1%-3% per year) of existing buildings by new energy-efficient buildings. Therefore, improving the energy efficiency of existing buildings
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7

Widell, Kristina Norne. "Energy efficiency of freezing tunnels : towards an optimal operation of compressors and air fans." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16431.

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Fish is one of Norway’s main exports, and can be shipped fresh, frozen or dried. This thesis examines the freezing of fish in batch tunnels and ways to increase the energy efficiency of this process. A fish freezing plant on the west coast of Norway was used as a baseline case and measurements were made of the freezing system. Different aspects of this system were simulated, mainly using MATLAB. The focus was on the compressors and the freezing tunnels of an industrial refrigeration system. The compressors and the freezing tunnel fans are the largest consumers of electricity, but they are ofte
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Clark, Barrett C. "Energetic efficiency and stability in bipedal locomotion: 3D walking and energy-optimal perturbation rejection." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534579029132854.

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9

Wanjiru, Evan. "Optimal energy-water nexus management in residential buildings incorporating renewable energy, efficient devices and water recycling." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/61465.

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Developing nations face insurmountable challenges to reliably and sustainably provide energy and water to the population. These resources are intricately entwined such that decisions on the use of one affects the other (energy-water nexus). Inadequate and ageing infrastructure, increased population and connectivity, urbanization, improved standards of living and spatially uneven rainfall are some of the reasons causing this insecurity. Expanding and developing new supply infrastructure is not sustainable due to sky high costs and negative environmental impact such as increased greenhouse gas e
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10

Li, Guoqiang [Verfasser]. "Optimal Control of Vehicles with Advanced Powertrain System in terms of Energy Efficiency / Guoqiang Li." Düren : Shaker, 2019. http://d-nb.info/1200807928/34.

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11

Wang, Yuxin. "Optimal method to achieve energy efficiency in residential buildings in different climate regions of China." Thesis, KTH, Energiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200745.

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Genom att energin är begränsad i världen och att byggsektorn kräver en mycket stor andel så är arbetet att effektivisera i denna sektor ett av de viktigaste målen i denna bransch. Syftet med detta arbete är att finna en bra, effektiv, och billig metod för att snabbt nå målet med energieffektivitet för Kinas bostäder. Beaktat att Kina är ett stort land indelas det i flera delar med olika klimat för att med större säkerhet nå rätt. Ett typhus har antagits i beräkningarna för fem olika klimatzoner. Programmet Designbuilder har använts och data för isolering och ventilation i ett basfall, ett fall
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Pan, Yue M. C. P. Massachusetts Institute of Technology. "Optimal subsidy policy to promote building energy efficiency under uncertainty : the case for architectural design subsidies." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105059.

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Thesis: M.C.P., Massachusetts Institute of Technology, Department of Urban Studies and Planning, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 52-54).<br>The goal of this thesis is to examine the relative cost-effectiveness of subsidies in incentivizing energy efficiency investment using a real option framework. I generalize a model of a sequential investment project involving two stages, design and construction stage, and investment lags and incorporate explicit consideration of dynamic subsidies. I apply this model to green construction projects
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Kolks, Giacomo, and Jürgen Weber. "Modiciency - Efficient industrial hydraulic drives through independent metering using optimal operating modes." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199423.

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Independent metering poses a possibility to improve energy efficiency of throttlecontrolled hydraulic single-rod cylinder drives. This paper deals with energetic potentials gained through variable circuitry that come along with independent metering. A method to assess energetic potentials is described, based on load specific, optimal operating modes. As a means of yielding maximum energy efficiency for a wide range of applications, a smooth mode switching algorithm that minimizes losses and allows good motion tracking is proposed. The mode switching algorithm is validated in simulation and on
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14

Cardoso, de Castro Nicolas. "Energy-aware control and communication co-design in wireless net-worked control systems." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT113/document.

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L'énergie est une ressource clé dans les systèmes commandés en réseau, en particulier dans les applications concernant les réseaux sans fil. Cette thèse étudie comment économiser l'énergie dans les capteurs sans fil avec une co-Conception contrôle et communication. Cette thèse examine les techniques et les approches existantes qui sont utilisées pour économiser l'énergie d'un point de vue de la communication et du contrôle. Cet étude est organisée selon une architecture de communication par couches couvrant de bas en haut les couches Physique, Liaison, Réseau, et Application. Puis, à partir de
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Asus, Zainab. "Effective simulation model and new control strategy to improve energy efficiency in hybrid electric land vehicle." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS062/document.

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Les principaux objectifs de ce travail est de développer une méthode de modélisation efficace pour un déploiement facile et rapide d'une stratégie de contrôle, d'examiner et d'étudier cette stratégie pour une application spécifique, et d'analyser l'amélioration qui peut être apporté à un moteur pour une meilleure efficacité dans les systèmes électrique et hybride. Ce travail comprend une partie simulation du système étudié et sa validation avec les résultats expérimentaux. Les études de cas sont utilisées pour analyser l'optimisation qui peut être effectuée en comparaison au système d'origine
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16

Ranjbar, Mohammad. "Optimal Signaling Strategies and Fundamental Limits of Next-Generation Energy-Efficient Wireless Networks." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1564677171677636.

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17

Diyad, Elmi Mohamed, and Lavaraj Manoharan. "Optimal Grid Connected Inverter Sizing for Different Climatic Zones." Thesis, Högskolan Dalarna, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-30986.

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Grid connected inverter requires accurate and appropriate sizing which depends on the temperature, inverter operating efficiency, performance ratio, annual system yield and solar radiation characteristics. The aim of this study was to design and size for optimum sizing factor for grid connected inverter. The main component to be considered in any photovoltaic grid connected system is the inverter since the output depends on the inverter sizing ratio, therefore optimal sizing factor was designed by considering factors that affects inverter sizing such as temperature, irradiance and the location
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18

Yurur, Ozgur. "Energy Efficient Context-Aware Framework in Mobile Sensing." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4797.

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The ever-increasing technological advances in embedded systems engineering, together with the proliferation of small-size sensor design and deployment, have enabled mobile devices (e.g., smartphones) to recognize daily occurring human based actions, activities and interactions. Therefore, inferring a vast variety of mobile device user based activities from a very diverse context obtained by a series of sensory observations has drawn much interest in the research area of ubiquitous sensing. The existence and awareness of the context provides the capability of being conscious of physical environ
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19

Spitilli, Ludovico. "Optimization models for optimal battery operation in Swiss energy communities: the Lugaggia case." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25692/.

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The next 30 years are going to be crucial for the future of climate in Europe and in the world: the globally increase of the population and the rise of the energy demand to guarantee higher life-standards, while keeping carbon-emissions low, are pushing the road of the Paris-agreement goals towards challenging paths. A massive and never-seen before green revolution is nedeed as well as the commitment of all the policy-makers involved to be on track with these goals. Europe can be considered the pioneer of this green revolution since at the heart of its Climate-Energy strategy, i.e. the Green
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20

Ammouri, Kevin. "Deep Reinforcement Learning for Temperature Control in Buildings and Adversarial Attacks." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301052.

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Heating, Ventilation and Air Conditioning (HVAC) systems in buildings are energy consuming and traditional methods used for building control results in energy losses. The methods cannot account for non-linear dependencies in the thermal behaviour. Deep Reinforcement Learning (DRL) is a powerful method for reaching optimal control in many different control environments. DRL utilizes neural networks to approximate the optimal actions to take given that the system is in a given state. Therefore, DRL is a promising method for building control and this fact is highlighted by several studies. Howeve
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21

Joud, Loïc. "Stratégie intelligente de gestion du système énergétique global d’un véhicule hybride." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK068/document.

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L’objectif principal de ce travail est de développer une stratégie de gestion optimale afin d’améliorer l’efficacité énergétique des véhicules hybrides. Ces travaux comportent une partie analyse expérimentale de la mobilité, une partie modélisation numérique et une partie optimisation de la stratégie de gestion énergétique. L’étude de la mobilité a permis de mettre en avant et de quantifier la prédictibilité des trajets, dus à une forte mobilité contrainte. La modélisation dynamique du véhicule, nécessaire à l’étude de stratégie, a été réalisée par Représentation Energétique Macroscopique (REM
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22

Meunier, Paul-Emile. "Contrôle collaboratif d’une ferme de génératrices houlomotrices." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0039/document.

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Les fermes houlomotrices de seconde génération qui seront déployées dans les années qui viennent seront composées d’un grand nombre de modules identiques mouillés en mer et rapportant au rivage l’électricité produite par câbles sous-marins. Il a été montré que le contrôle des machines houlomotrices permet d’augmenter significativement leur rendement. Cependant, le contrôle optimal d’un système houlomoteur est non causal, i.e. son application nécessite la prévision de la force d’excitation soumise par le champ de vague sur chacun des éléments de la ferme. Les travaux présentés dans ce manuscrit
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23

Sala, Cardoso Enric. "Advanced energy management strategies for HVAC systems in smart buildings." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/668528.

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The efficacy of the energy management systems at dealing with energy consumption in buildings has been a topic with a growing interest in recent years due to the ever-increasing global energy demand and the large percentage of energy being currently used by buildings. The scale of this sector has attracted research effort with the objective of uncovering potential improvement avenues and materializing them with the help of recent technological advances that could be exploited to lower the energetic footprint of buildings. Specifically, in the area of heating, ventilating and air conditioning i
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Hassan, Aakash. "Improving the efficiency, power quality, and cost-effectiveness of solar PV systems using intelligent techniques." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2023. https://ro.ecu.edu.au/theses/2676.

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Growing energy demand, depleting fossil fuels, and increasing environmental concerns lead to adaptation to clean and sustainable energy sources. Renewable energy sources are now believed to play a critical role in diminishing the deteriorating environment, supplying power to remote areas with no access to the grid, and overcoming the energy crisis by reducing the stress on existing power networks. Therefore, an upsurge in renewablesbased energy systems development has been observed during the previous few decades. In particular, solar PV technology has demonstrated extraordinary growth due to
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25

Silva, Lucas Franco da. "Planejamento ótimo de trajetórias para um robô escalador." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3139/tde-04052018-152124/.

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Este trabalho trata do planejamento de trajetórias que minimizam as perdas elétricas no KA\'I yxo, um robô escalador de árvores que tem por finalidade realizar monitoramento ambiental em florestas através da coleta de diferentes tipos de dados. Como essa aplicação requer que o robô permaneça em ambientes remotos, o estudo de técnicas que reduzam as perdas de energia a fim de que se aumente o tempo em operação do robô se mostra relevante, sendo a minimização das perdas elétricas uma contribuição importante nesse sentido. Estruturalmente, o KA\'I yxo consiste em um robô bípede com duas garras e
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Abtahi, Farzad. "Optimal Design of Cost- and Energy-Efficient ScalablePassive Optical Backbone Networks." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116891.

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Advances in optical coherent transmissions and electrical compensation technologies have stimulated the exploration of novel optical network architectures. Filterless optical backbone networks (F-OBNs) eliminate or minimize the usage of active photonic reconfigurable components, which is also referred to as passive OBN. By introducing passive splitters and combiners to interconnect the fiber links, this type of networks have been proposed as a cost- and energy-efficient alternative to active optical switching networks. However, F-OBN suffers from a constraint on wavelength reuse due to its bro
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27

Tsonev, Dobroslav Antonov. "High speed energy efficient incoherent optical wireless communications." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10571.

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The growing demand for wireless communication capacity and the overutilisation of the conventional radio frequency (RF) spectrum have inspired research into using alternative spectrum regions for communication. Using optical wireless communications (OWC), for example, offers significant advantages over RF communication in terms of higher bandwidth, lower implementation costs and energy savings. In OWC systems, the information signal has to be real and non-negative. Therefore, modifications to the conventional communication algorithms are required. Multicarrier modulation schemes like orthogona
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Karlsson, Joakim. "Windows : Optical Performance and Energy Efficiency." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-5147-0/.

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29

AHMAD, ARSALAN. "Energy Efficiency in Optical Network Planning." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2532689.

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Telecommunications operators are continuously exploring new lternatives to up-grade their networks in order to handle the ever increasing Internet traffic demand. However, increase in bandwidth have been accompanied with the increase in power consumption which is an important subject to be addressed. For the said purpose my research is focused on developing methods of bringing energy efficiency in the core telecommunications networks. The target of this thesis is the improvement of the energy efficiency in wired telecommunication networks. Indeed, several research studies have underlined that
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Hirafuji, Raisa Ohana da Costa. "Energy efficiency in next-generation passive optical networks." reponame:Repositório Institucional da UnB, 2014. http://repositorio.unb.br/handle/10482/18480.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2014.<br>Submitted by Cristiane Mendes (mcristianem@gmail.com) on 2015-07-02T16:07:47Z No. of bitstreams: 1 2014_RaisaOhanaDaCostaHirafuji.PDF: 3173809 bytes, checksum: ce762142b391426311c251f79ad47862 (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2015-07-30T16:02:41Z (GMT) No. of bitstreams: 1 2014_RaisaOhanaDaCostaHirafuji.PDF: 3173809 bytes, checksum: ce762142b391426311c251f79ad47862 (MD5)<br>Made available in DSpace on 2015-07-30T16:02:42Z
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Mohd, Warip Mohd Nazri Bin. "Energy efficient core optical IP networks." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18958.

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The Internet has become an integral part of modern societies fuelling ever growing opportunities for the provision of new advanced services which better respond to quickly changing societal needs. Previously the deployment of such services have led to significant increases in energy consumption which is in strong contrast with the global drive for a greener and more energy efficient environments. Network infrastructures are required which support these growing needs but at the same time remain zero-carbon emission complaint. Green photonic network designs centre on techniques to reduce and con
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Дудник, Алексей Валентинович. "Оптимальные системы управления переходными процессами энергосберегающих объектов с переменными параметрами". Thesis, НТУ "ХПИ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22099.

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Диссертация на соискание ученой степени кандидата технических наук по специальности 05.13. 03 – системы и процессы управления. – Национальный технический университет "Харьковский политехнический институт", Харьков, 2016. Диссертация посвящена решению научно-практической задачи усовершенствования оптимальной по затратам энергии системы управления. В диссертационной работе рассмотрен метод оптимального управления в линейной системе при квадратичном критерии качества с учётом ограничений на управляемые координаты, применительно к разомкнутой системе. Показано, что существует шесть вариантов алго
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Ding, Minsheng. "Energy efficient high port count optical switches." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275326.

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The advance of internet applications, such as video streaming, big data and cloud computing, is reshaping the telecommunication and internet industries. Bandwidth demands in datacentres have been boosted by these emerging data-hungry internet applications. Regarding inter- and intra-datacentre communications, fine-grained data need to be exchanged across a large shared memory space. Large-scale high-speed optical switches tend to use a rearrangeably non-blocking architecture as this limits the number of switching elements required. However, this comes at the expense of requiring more sophistic
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Labidi, Mouchira. "Optimisation de chaufferies collectives multi-energies : dimensionnement et commande de systèmes de stockage thermique par hydro-accumulation." Thesis, Perpignan, 2015. http://www.theses.fr/2015PERP0007.

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Les travaux présentés dans ce manuscrit portent sur l’optimisation d’une chaufferie collective multi-énergie en l’équipant d’un système de stockage thermique de type hydro-accumulation. L’efficacité de ce dernier dépend de sa capacité à conserver son énergie initiale. Ainsi, pour minimiser les pertes thermiques, le système de stockage doit être correctement isolé. Un modèle de ballon d’hydro-accumulation stratifié est développé et validé expérimentalement. Une étude paramétrique est menée afin d’étudier l’impact, sur les pertes thermiques, de paramètres géométriques et météorologiques. Ensuite
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Дудник, Олексій Валентинович. "Оптимальні системи керування перехідними процесами енергозаощаджуючих об'єктів зі змінними параметрами". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22091.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13. 03 – системи та процеси керування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2016. Дисертація присвячена вирішенню науково-практичної задачі вдосконалення оптимальною за витратами енергії системи керування. У дисертаційній роботі розглянуто метод оптимального керування в лінійній системі при квадратичному критерії якості з урахуванням обмежень на керовані координати, стосовно до розімкнутої системи. Показано, що існує шість варіантів алгоритмів оптимального керува
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Thammawichai, Mason. "Energy-efficient optimal control for real-time computing systems." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/33813.

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Moving toward ubiquitous Cyber-Physical Systems - where computation, control and communication units are mutually interacting - this thesis aims to provide fundamental frameworks to address the problems arising from such a system, namely the real-time multiprocessor scheduling problem (RTMSP) and the multi-UAV topology control problem (MUTCP). The RTMSP is concerned with how tasks can be scheduled on available computing resources such that no task misses a deadline. An optimization-based control method was used to solve the problem. Though it is quite natural to formulate the task assignment p
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Turna, Ozgur Can. "Bandwidth allocation and energy efficiency solutions in optical access networks." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0005/document.

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Dans ce travail de thèse, un aperçu général sur les systèmes PON est présenté et sont étudiés les mécanismes et classification PON existants. Après, nous introduisons notre première contribution qui est un algorithme d'allocation dynamique de bande passante pour EPON. Cet algorithme proposé est désigné comme «hcDBA». Par la suite, une amélioration de l'algorithme de hcDBA avec mécanisme de prédiction précoce est présentée. Notre simulation montre bien que notre algorithme hcDBA est performant comparé aux mécanismes existants en termes de taux de perte de paquets et de délai d’accès. Dans notre
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Turna, Ozgur Can. "Bandwidth allocation and energy efficiency solutions in optical access networks." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0005.

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Dans ce travail de thèse, un aperçu général sur les systèmes PON est présenté et sont étudiés les mécanismes et classification PON existants. Après, nous introduisons notre première contribution qui est un algorithme d'allocation dynamique de bande passante pour EPON. Cet algorithme proposé est désigné comme «hcDBA». Par la suite, une amélioration de l'algorithme de hcDBA avec mécanisme de prédiction précoce est présentée. Notre simulation montre bien que notre algorithme hcDBA est performant comparé aux mécanismes existants en termes de taux de perte de paquets et de délai d’accès. Dans notre
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39

Foutz, Thomas J. "Energy Efficient Neural Stimulation." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1310090782.

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Berntsson, Simon, and Mattias Andreasson. "Efficient Route-based Optimal Energy Management for Hybrid Electric Vehicles." Thesis, Linköpings universitet, Fordonssystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148565.

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The requirements on fuel consumption and emissions for passenger cars are getting stricter every year. This has forced the vehicle industry to look for ways to improve the performance of the driveline. With the increasing focus on electrification, a common method is to combine an electrical driveline with a conventional driveline that uses a petrol or diesel engine, thus creating a hybrid electric vehicle. To fully be able to utilise the potential of the driveline in such a vehicle, an efficient energy management strategy is needed. This thesis describes the development of an efficient route-b
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Brogren, Maria. "Optical Efficiency of Low-Concentrating Solar Energy Systems with Parabolic Reflectors." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3988.

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Johansson, Wilhelm. "Optical active thin films on cover glass increasing the efficiency of photovoltaic modules." Thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75044.

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Thin film coatings of ZnO, TiO2, CeOX and BiOX have been deposited on soda lime silica glass through spray pyrolysis. The effects on the optical properties of the coated glass, as well as the possible impacts on the life expectancy and energy efficiency of PV-modules have been studied. ZnO and TiO2 coatings both reduced the transmission of UV radiation of wavelengths destructive to PV-modules. Therefore, both have the potential to increase the life expectancy of PV-modules if used on cover glass. The ZnO thin film also showed an increase in photoluminescence at 377 nm when radiated with UV rad
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Yang, Jie. "Energy efficient cooperative communication." Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-031309-051655/.

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Nikkari, Jason James. "An optical process sensor for steel furnace pollution control and energy efficiency." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ58724.pdf.

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Merabtine, Abdelatif. "Modélisation Bond Graphs en vue de l'Efficacité Énergétique du Bâtiment." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0121/document.

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L'objectif des travaux présentés dans ce mémoire concerne le développement d'un modèle global représentant le couplage de l'enveloppe du bâtiment avec les équipements énergétiques. Une approche systémique appelée les Bond Graphs, peu employée jusqu'ici dans la modélisation des systèmes thermiques, est utilisée. Le modèle global du bâtiment, regroupant sous le même environnement de simulation, les modèles de l'enveloppe du bâtiment, les apports solaires, les émetteurs de chauffage et de rafraîchissement et le système de ventilation, est développé pour reconstituer l'ensemble des articulations é
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Jirattigalachote, Amornrat. "Provisioning Strategies for Transparent Optical Networks Considering Transmission Quality, Security, and Energy Efficiency." Doctoral thesis, KTH, Optical Network Laboratory (ON Lab), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-94011.

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The continuous growth of traffic demand driven by the brisk increase in number of Internet users and emerging online services creates new challenges for communication networks. The latest advances in Wavelength Division Multiplexing (WDM) technology make it possible to build Transparent Optical Networks (TONs) which are expected to be able to satisfy this rapidly growing capacity demand. Moreover, with the ability of TONs to transparently carry the optical signal from source to destination, electronic processing of the tremendous amount of data can be avoided and optical-to-electrical-to-optic
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Wiatr, Pawel. "Energy Saving vs. Performance: Trade-offs in Optical Networks." Doctoral thesis, KTH, Optical Network Laboratory (ON Lab), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186135.

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The energy consumption of communication networks is continuously growing. Many energy saving approaches have been proposed at the device, system, and network level. The most promising way to address this problem is to utilize photonic technologies as much as possible thanks to their low energy consumption per bit performance. Moreover, several approaches have been proposed to further reduce the energy consumption in optical networks. One popular technique exploits low power modes (e.g., sleep or doze mode) for devices that are not used. However, sleep mode based approaches may affect the way o
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Zhu, Jiannan. "Novel energy-efficient DWDM systems for low-cost optical communication applications." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709467.

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Helmy, Ahmed. "Energy-Efficient Bandwidth Allocation for Integrating Fog with Optical Access Networks." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39912.

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Access networks have been going through many reformations to make them adapt to arising traffic trends and become better suited for many new demanding applications. To that end, incorporating fog and edge computing has become a necessity for supporting many emerging applications as well as alleviating network congestions. At the same time, energy-efficiency has become a strong imperative for access networks to reduce both their operating costs and carbon footprint. In this dissertation, we address these two challenges in long-reach optical access networks. We first study the integration of fog
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Arasu, Mukilan T. "Energy Optimal Routing of Vehicle Fleet with Heterogeneous Powertrains." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566150970771138.

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