Дисертації з теми "Adaptation energy"
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Rasumov, Nikon. "Energy-aware adaptation." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607938.
Повний текст джерелаShehadeh, Dareen. "Dynamic network adaptation for energy saving." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2017. http://www.theses.fr/2017IMTA0067/document.
Повний текст джерелаThe main goal of the thesis is to design an Energy Proportional Network by taking intelligent decisions into the network such as switching on and off network components in order to adapt the energy consumption to the user needs. Our work mainly focuses on reducing the energy consumption by adapting the number of APs that are operating to the actual user need. In fact, traffic load varies a lot during the day. Traffic is high in urban areas and low in the suburb during day work hours, while it is the opposite at night. Often, peak loads during rush hours are lower than capacities of the networks. Thus they remain lightly utilized for long periods of time. Thus keeping all APs active all the time even when the traffic is low causes a huge waste of energy. Our goal is to benefit from low traffic periods by automatically switch off redundant cells, taking into consideration the actual number of users, their traffic and the bandwidth requested to serve them. Ideally we wish to do so while maintaining reliable service coverage for existing and new coming users. First we consider a home networking scenario. In this case only one AP covers a given area. So when this AP is switched off (when no users are present), there will be no other AP to fill the gap of coverage. Moreover, upon the arrival of new users, no controller or other mechanism exists to wake up the AP. Consequently, new arriving users would not be served and would remain out of coverage. The study of the state of the art allowed us to have a clear overview of the existing approaches in this context. As a result, we designed a platform to investigate different methods to wake up an AP using different technologies. We measure two metrics to evaluate the Switching ON/OFF process for the different methods. The first is the energy consumed by the AP during the three phases it goes through. The second is the delay of time for the AP to wake up and be operational to serve the new users. In the second case we consider a dense network such as the ones found in urban cities, where the coverage area of an AP is also covered by several other APs. In other words, the gap resulting from switching off one or several APs can be covered by other neighbouring ones. Thus the first thing to do was to evaluate the potential of switching off APs using real measurements taken in a dense urban area. Based on this collected information, we evaluate how many APs can be switched off while maintaining the same coverage. To this end, we propose two algorithms that select the minimum set of APs needed to provide full coverage. We compute several performance parameters, and evaluate the proposed algorithms in terms of the number of selected APs, and the coverage they provide
Mahadevamangalam, Srivasthav. "Energy-aware adaptation in Cloud datacenters." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-17373.
Повний текст джерелаPeng, Tingqing. "WSN Routing Schedule Based on Energy-aware Adaptation." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39223.
Повний текст джерелаKrogsveen, Even. "Energy-Efficient Link Adaptation and Resource Allocation in Energy-Constrained Wireless Ad Hoc Networks." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8762.
Повний текст джерелаWireless ad hoc networks have a number of advantages over traditional, infrastructure-based networks. Robustness and easy deployment are two of the main advantages. However, the distributed nature of such networks raises a number of design challenges, especially when energy-efficiency and QoS requirements are to be taken into consideration. These challenges can only be met by allowing closer cooperation and mutual adaptation between the protocol layers, referred to as a cross-layer design paradigm. In energy-constrained wireless ad hoc networks, each node can only transmit to a limited number of other nodes directly. Hence, in order to reach distant destinations, intermediate nodes must relay the traffic of their peer nodes, resulting in multihop routes. The total energy consumption associated with a end-to-end transmission over such a route can be significantly reduced if the nodes are correctly configured. A cross-layer, optimization scheme, based on adaptive modulation and power control, is proposed in this thesis. The optimization scheme assumes that an existing route has been found, and allows QoS requirements in terms of end-to-end bit error rate and delay. Both transmission and circuit energy consumption is taken into consideration. By jointly optimizing all nodes throughout the route, the total energy consumption can be reduced by more than 50%, compared to a fixed-rate system. The adaptive system also exhibits superior capabilities to meet stringent QoS requirements. Results for both continuous and discrete rate adaptation is produced, and it is found that discrete adaptation causes only a small performance degradation, compared to the optimal, continuous case. Simulations also show that the system is vulnerable to inaccurate link state information. Finally, the effects of maximum-rate limitation and ignoring the circuit power consumption is investigated.
Kim, Eun Kyung Lim Alvin S. "Adaptation service framework for wireless sensor networks with balanced energy aggregation." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/KIM_EUN_31.pdf.
Повний текст джерелаPenumetsa, Swetha. "A comparison of energy efficient adaptation algorithms in cloud data centers." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-17374.
Повний текст джерелаKalinga, Ranjith Shantha De Silva. "Adaptation of Solar Energy Driven Absorption Chillers for Air Conditioning in Commercial Building." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-23828.
Повний текст джерелаMenon, Aju Sukumaran. "Test Rig Adaptation for the Investigation of Bearings in Wave Energy Converters." Thesis, KTH, Maskinkonstruktion (Inst.), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302556.
Повний текст джерелаSe filen
Lopez, Rémy. "Adaptation des méthodes “statistical energy analysis” (sea) aux problèmes d'électromagnétisme en cavités." Toulouse 3, 2006. http://www.theses.fr/2006TOU30045.
Повний текст джерелаModeling electromagnetic phenomena by deterministic methods requires a subdivision of the volume under study into a number of discrete elements with sizes of the order of tenth of the wavelength. So, the demand for computer resources significantly grows with increasing frequencies. Moreover, taking into account the complexity of the problems and the uncertainties on the input data, it becomes illusory to make a deterministic calculation for each studied variable. New methods, called energetic methods, were developed to study systems large in front of the wavelength. They allow to estimate statistically the value of the field inside a system One of these methods, the Statistical Energy Analysis (SEA), developed in acoustic, is transposed here in electromagnetism. The SEA allows to describe the exchanges of energy between the different systems of a structure. The energy of each system depends on the concepts of mode of resonance, loss and coupling. The parameters linked with these concepts are assessed by analytical formulae and numerical simulations. An automatic sub structuring method is also presented. The results obtained seem to confirm the interest of this method
Schmidt, Stephan Wayne. "INTEGRATING SOLAR ENERGY AND LOCAL GOVERNMENT RESILIENCE PLANNING." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1211.
Повний текст джерелаFarrou, Ifigenia. "Investigation of energy performance and climate change adaptation strategies of hotels in Greece." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/8137.
Повний текст джерелаLychko, T. "Adaptation of legislation of Ukraine to the European Union legislation in the field of energy efficiency and renewable energy." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45986.
Повний текст джерелаChanda, Soumendu. "Powertrain Sizing and Energy Usage Adaptation Strategy for Plug-in Hybrid Electric Vehicles." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1208385855.
Повний текст джерелаJonathan, Norris Allen. "Transitioning Central Appalachia: Understanding Framework Conditions Supporting the Adaptation to New Energy Economies." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1524242893014265.
Повний текст джерелаPinthuprapa, Chatchai. "The development and adaptation of the computer aided environment to facilitate industrial energy audits." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5093.
Повний текст джерелаThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 7, 2008) Includes bibliographical references.
Cheng, Cheng. "Adaptation of buildings for climate change : A literature review." Thesis, Högskolan i Gävle, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36143.
Повний текст джерелаVia online ZOOM meeting Presentation
Stier, Christian [Verfasser]. "Adaptation-Aware Architecture Modeling and Analysis of Energy Efficiency for Software Systems / Christian Stier." Karlsruhe : KIT Scientific Publishing, 2019. http://www.ksp.kit.edu.
Повний текст джерелаKrishnan, Vinod. "Scenario Planning Process of Energy Companies in Sweden." Thesis, KTH, Industriell ekonomi och organisation (Avd.), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35586.
Повний текст джерелаNadeem, Iqra. "Water-energy nexus in the UAE in relation to climate change and adaptation policy scenarios." Thesis, Massachusetts Institute of Technology, 2018. https://hdl.handle.net/1721.1/122390.
Повний текст джерелаThesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, Technology and Policy Program, 2018
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 82-85).
Water and Energy systems that were once considered disparate, are coupled in many ways. Generation, transmission and distribution of each system relies on the other system. The interaction becomes significantly stronger in economies dependent on desalination for their water resources. One such country is the United Arab Emirates. The water-energy nexus faces serious challenges under climate change as cooling needs and outdoor water demands rise. This thesis models the impact of climate change on the water-energy nexus in the UAE. It explores a set of climate change adaptation policy scenarios and quantifies their respective economic, water and energy savings. Hence, it provides an analytical assessment of the nexus that can inform data-driven policy making. This thesis views the nexus through a qualitative lens and a quantitative lens. The qualitative piece presents the organizational mapping and structuring of the UAE institutions across the water-energy-climate nexus.
It highlights gaps in cross-sectoral interactions that need to be overcome for a sustainable future. The second piece presented in this thesis is analytical in nature. It uses two specialized water and energy softwares called the Water Evaluation and Planning System (WEAP) and the Long-range Energy Alternatives Planning System (LEAP) and couples them together to model the nexus. The water-energy nexus model is tested for different individual and aggregate adaptation policy scenarios to assess a wide range of effects on the nexus. These scenarios are also run for six sub-regions within the UAE (Abu Dhabi, Al Ain, Western region, Dubai, Eastern region and Fujairah) to understand the underlying demand sectors driving the water-energy nexus in these sub-regions. The results of this extensive scenario analysis have informed policy recommendations for long-term planning of the water-energy nexus in the UAE.
Important findings from this study include the huge savings potential from indoor consumption reduction (up to 1200 million cubic meters of water and 60 million gigajoules of electricity per year by 2060) and the need for irrigated land regulation (saves up to 700 million cubic meters of water and 5 million gigajoules of electricity per year by 2060) in the UAE. The sub-regional analysis highlights the need for sub-regionalized policy goals that govern regions based on their demand differences.
by Iqra Nadeem.
S.M. in Technology and Policy
S.M.inTechnologyandPolicy Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, Technology and Policy Program
Dragović, Njegoš, and Snežana Urošević. "Using a renewable energy resources in the clothing industry." Thesis, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/19082.
Повний текст джерелаStier, Christian [Verfasser], and R. [Akademischer Betreuer] Reussner. "Adaptation-Aware Architecture Modeling and Analysis of Energy Efficiency for Software Systems / Christian Stier ; Betreuer: R. Reussner." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/116180174X/34.
Повний текст джерелаJackson, Matthew. "Metabolic adaptation on muscular and whole body levels in response to altered nutrient availability and energy demand." Thesis, Bangor University, 2014. https://research.bangor.ac.uk/portal/en/theses/metabolic-adaptation-on-muscular-and-whole-body-levels-in-response-to-altered-nutrient-availability-and-energy-demand(9b8d4966-6ea7-456c-8da3-493650dfad91).html.
Повний текст джерелаCohen, François. "Investir dans l’utilisation et la production d’énergie pour lutter et s’adapter au changement climatique." Thesis, Paris, ENMP, 2014. http://www.theses.fr/2014ENMP0022/document.
Повний текст джерелаEnergy investments are a requirement to mitigate climate change, but also a challenge for adaptation. The first part of this PhD dissertation focuses on improving the energy efficiency of domestic appliances. Chapter 1 analyses if consumers take into account energy costs when they purchase refrigerators with UK market data. Chapter 2 presents the EU Energy Label, its expected effects on energy efficiency and the key factors of success of such a large scale information-based policy. The second part of this PhD dissertation broadens the scope of analysis to the impacts of climate change on energy investment behaviour. Chapter 3 reviews the climate sensitiveness of the electricity sector and provides elements of discussion on how investments decisions could better take into account climate change in the future. Chapter 4 provides a longitudinal analysis of the evolution of US housing (1985-2011) and its sensitivity to climate, with the objective of forecasting the long-run impact of climate change on both residential gas and electricity consumptions
Peesapati, Saivenkata Krishna Gowtam. "Energy Efficiency of 5G Radio Access Networks." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-289433.
Повний текст джерелаUnder de senaste åren har intresset för energieffektivitet (EE) av mobila kommunikationssystem ökat på grund av den ökande energiförbrukningen (EF). Med femte generationens mobilsystem, vilket kännetecknas av mer komplexa och kraftfulla basstationer (BS) för att betjäna ett ständigt ökande antal användare och tjänster, riskerar nätverkets totala EF att öka ytterligare. Detta kan leda till en markant ökning av operativa utgifter (OPEX) för nätoperatörerna och ett ökat globalt koldioxidavtryck. Många studier har visat att dagens nätverk ofta är överdimensionerade och att radioresurserna är underutnyttjade på grund av variationerna i det dagliga trafikbehovet. Genom att anpassa BS radioresurser efter trafikbehovet kan man säkerställa att man uppfyller användarkraven samtidigt som man minskar den totala EF. I denna studie föreslås en aktivitetsbaserad metod för att utvärdera EF för en BS. Aktivitetsfaktorn för en BS definieras som den bråkdel av tiden som BS är aktiv (sänder data) under en fast period och är beroende av mängden radioresurser. För att kvantifiera EF för en BS föreslås en ny modell som beräknar in effekt till BS som funktion av utstrålad effekt från BS. Den nya modellen fångar variationen i energiförbrukning med tre huvudsakliga radioresurser som är: 1) antal sändarantenner 2) bandbredd och 3) den spatiella multiplexingfaktorn (antal användare som schemaläggs samtidigt). Därefter implementeras en Q- inlärningsalgoritm för att anpassa dessa resurser efter det upplevda trafikbehovet och vilolägen som BS kan växla till när den är inaktiv. Ett viloläge innebär att viss hårdvara i BS stängs av. Resultatet visar att man genom att identifiera rätt typ av BS utifrån lokala trafikförhållanden kan få energibesparingar så höga som 60%. Vidare kan EF för en BS reduceras med 57% under den tid av dygnet då trafiken är som lägst genom att ha djupare vilolägen jämfört med basscenariot utan vilolägen. Genom att implementera Q-inlärningsalgoritmen som anpassar tillgängliga radioresurser till trafikbehovet minskar den genomsnittliga EF för BS ytterligare med upp till 20%. Vinsten i EE som erhålls av algoritmen beror dock till stor del på dess konvergens, som varierar med fördelningen av användarna i cellen, topptrafikbehovet och BS tillgängliga radioresurser. Resultatet visar att genom att kombinera resursanpassning med vilolägen kan man få betydande energibesparingar under varierande trafikbelastning. För att säkerställa tillförlitligheten av de erhållna resultaten betonas emellertid behovet av att garantera konvergensen av algoritmen innan den används för resursanpassning.
Huaynate, Andree, Juan Jara, and Carlos Raymundo. "Adaptation of the raise borer elaboration method to a short ore pass by evaluating its efficiency." Springer Science and Business Media Deutschland GmbH, 2019. http://hdl.handle.net/10757/656291.
Повний текст джерелаThe recent climate change has forced people to live in extreme conditions, either excessive heat or cold, implying that they must adapt to survive in these situations. However, there are people who, because of their geographical condition and lack of resources, lack the means and tools to combat these climate changes. The context of this study is provided in a rural town located in the Arequipa region (Peru), whose inhabitants have to fight against frosts of up to −20 °C in an area without electricity. A viable solution to this problem is found through the design and implementation of a heating system using geothermal and photovoltaic energy, which are resources found in the area, according to a report of the Ministry of Energy and Mines. This study analyzes and researches the geographical and meteorological conditions of the region, for validating, through theory and simulations, whether the proposed system can supply the thermal energy required to maintain the indoor temperature at a minimum of 15 °C under extreme conditions. The system is designed after analyzing the best technological options and techniques currently available in the context studied for its ultimate financing and establishing guidelines and indicators for monitoring results.
Karumuri, Anil Kumar. "Hierarchical Porous Structures Functionalized with Silver Nanoparticles: Adaptation for Antibacterial Applications." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1401792088.
Повний текст джерелаZhu, Lingling. "Thermal plasticity of leaf energy metabolism: ecological, physiological and biochemical linkages." Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/139452.
Повний текст джерелаHamisi, Rajabu. "Simulations of water balance conditions and cli-mate variability for Sustainable Agriculture and Energy in the Lower Rufiji Basin." Thesis, KTH, Mark- och vattenteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171831.
Повний текст джерелаByrne, Nuala M. "Adaptation to weight-loss in the obese." Thesis, Queensland University of Technology, 2000. https://eprints.qut.edu.au/36756/1/36756_Digitised%20Thesis.pdf.
Повний текст джерелаRafael, Sandra Isabel Moreira. "Urban air quality and climate change: vulnerability, resilience and adaptation." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23029.
Повний текст джерелаAs cidades, áreas que albergam cerca de 70% da população europeia, enfrentam hoje um conjunto de desafios associados a alterações do metabolismo urbano, que num contexto de alteração climática (AC), afectam o microclima urbano e a qualidade do ar (QA). Compreender a interação entre as AC, qualidade do ar e fluxos urbanos de calor (FUC) é um tópico de investigação emergente, reconhecido como área de interesse para a definição e implementação de políticas locais. O principal objetivo do presente trabalho é promover uma avaliação integrada das interações entre medidas de resiliência urbana e as AC, e respectiva influência no microclima urbano, QA e FUC, tendo como caso de estudo a cidade do Porto (Portugal). Pretende-se ainda impulsionar o desempenho dos modelos numéricos para que estes representem realisticamente os fenómenos físicos que ocorrem nas áreas urbanas. Para atingir este objetivo, o sistema de modelos WRF-SUEWS foi aplicado para a área de estudo para avaliar a influência de diferentes níveis de área urbanizada nas trocas de calor entre a superficie e a atmosfera. O modelo foi validado mediante a comparação dos seus resultados com dados medidos obtidos em campanhas de monitorização de fluxos. A influência das variáveis meteorológicas nos FUC, e a forma como estas, por sua vez, são influenciadas pela superfície urbana foi também avaliada. Para tal, o sistema WRF-SUEWS foi aplicado para 1-ano representativo de um período de clima presente (1986-2005) e de clima futuro de médio prazo (2046-2065). O cenário climático futuro foi projetado tendo por base o cenário RCP8.5. Esta análise permitiu quantificar e mapear os efeitos das AC nos FUC na cidade do Porto. Face à necessidade corrente de aumentar a resiliência urbana a futuros eventos meteorológicos extremos (e.g. ondas de calor), o sistema WRF-SUEWS foi ainda aplicado (com uma resolução espacial de 200 m) para avaliar a influência de medidas de resiliência nos FUC. Conhecendo a importância da morfologia urbana para as características do seu próprio clima, um conjunto de parameterizações urbanas (LSM, SUEWS e UCM) foram analisados para área de estudo, por forma a obter uma representação realista das características urbanas no modelo WRF e, consequentemente, obter um melhor desempenho na modelação da QA à escala local. Os resultados revelaram que o modelo UCM é a parameterização urbana que melhor representa os fluxos turbulentos de calor, a temperatura e velocidade do vento à superfície. Como resultado, o modelo CFD VADIS, inicializado pelo modelo WRF-UCM, foi aplicado com uma elevada resolução espacial (3 m) a um bairro típico da cidade do Porto. As simulações realizadas permitiram caracterizar o estado atual da QA na área de estudo, bem como avaliar a influência de diferentes medidas de resiliência nos padrões de velocidade do vento e na concentração de poluentes atmosféricos (PM10, NOX, CO e CO2). Este trabalho constitui uma ferramenta científica inovadora no que diz respeito ao conhecimento dos processos físicos que ocorrem à escala urbana, proporcionando uma visão integradora entre AC, QA e FUC. Estes resultados são relevantes para o apoio à decisão política do que respeita à implementação de estratégias que permitam aumentar a resiliência urbana, nas suas diversas vertentes, a um clima em mudança
Cities, home of about 70% of the European population, are facing important challenges related to changes in urban structure and its metabolism, and to pressures induced by climate change (CC) effects, which are affecting urban microclimate and air quality. The better understanding of the interactions between CC, air quality and urban surface energy balance (USEB) is an emerging priority for research and policy. The main objective of the current study is to provide an integrated assessment of the interaction between resilience measures and CC effects, and its influence on the urban microclimate and air quality as well as on the USEB, having as case study the city of Porto (Portugal). The ultimate goal is to improve the accuracy of numerical modelling to better represent the physical processes occurring in urban areas. For this purpose, the relevant parameters to both USEB and air quality were analysed. The WRF-SUEWS modelling setup was applied to the study area to assess the influence of different levels of urbanization on the surface-atmosphere exchanges. To validate the modelling setup, the results were compared with measurements carried out on field campaigns. The way of how the meteorological variables affect the USEB and how, in turn, these variables are themselves affected by urban surface was also assessed. The modelling setup was applied for 1-year period statistically representative of a present (1986-2005) and medium-term future (2046-2065) climate. The climate projection was produced under the RCP8.5 scenario. This analysis gives insights of how the urban-surface exchanges will be affected by CC, allowing the mapping of the FUC over the study area. As result of the need of increase cities resilience to future extreme weather events (e.g. heat waves), the WRF-SUEWS model (with a spatial resolution of 200 m), was applied to Porto city to evaluate the influence of a set of resilience measures on the USEB. Knowing the importance of urban surfaces to its own microclimate, a set of urban parameterization schemes (LSM, SUEWS and UCM) were analysed for the study area, to achieve a more accurate representation of urban features in the WRF model and, in consequence, to improve the capability of air quality modelling at urban/local scale. The results point out that the UCM is the urban parameterization that provides a more realistic representation of the turbulent energy fluxes and the near-surface air temperatures and wind speed. As result, a CFD modelling (VADIS), forced by WRF-UCM, was used to provide a set of numerical simulations with a high spatial resolution (3 m) over a typical neighbourhood in the Porto city. These simulations allow the characterization of the current air quality status over the study area, as well as the assessment of the influence of different resilience measures in the wind flow and air pollutants dispersion (PM10, NOX, CO and CO2). Overall, this research work is a step forward in understanding the physics of urban environments, providing also a linkage between CC, air quality and USEB. These findings are highly advantageous to support policy makers and stakeholders helping them to choose the best strategies to mitigate extreme weather events and air pollution episodes and so increase cities resilience to a future climate.
Hafner, Brian J. "Transtibial amputee gait adaptation : correlating residual limb compliance to energy storing and return prosthetic foot compliance in bouncing gait /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8038.
Повний текст джерелаKwon, Young Woo. "Effective Fusion and Separation of Distribution, Fault-Tolerance, and Energy-Efficiency Concerns." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/49386.
Повний текст джерелаPh. D.
Stephens, Bonnie Baggett. "Chemosensory Responses in Azospirillum brasilense." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/biology_diss/11.
Повний текст джерелаViblanc, Vincent Alexandre Vasudev. "Coping with energy limitation, social constraints and stress in a colonial breeder, the king penguin (Aptenodytes patagonicus)." Strasbourg, 2011. http://www.theses.fr/2011STRA6191.
Повний текст джерелаThis thesis investigates the behavioral and physiological strategies that allow a colonial breeder, the king penguin (Aptenodytes patagonicus), to breed while fasting in a crowded, possibly stressful, social environment. First, by monitoring penguin heart rate (HR) as a proxy to energy expenditure, it considers the energy cost of the most common behaviors (comfort and aggressive behavior) of penguins breeding ashore, and questions the adaptive significance of high and low, respectively, energy investment into these two behaviours. Second, it investigates the physiological changes that occur during the longest breeding fast (1 month) by continuously recording HR, body temperature and physical activity in incubating males. It reveals that changes in colony density (i. E. Crowding) may have a strong impact on the energy expended to fuel metabolism at rest, i. E. First evidence for an energy cost of group-living in birds. Third, it shows that penguins are highly sensitive to the social environment, as indicated by changes in HR responses to aggressive contexts of various relevance and associated risks. Fourth, it investigates the effects of breeding status on costly stress responses (hormonal, metabolic and cardiac). It shows that responses to acute stress decrease with increasing reproductive value of the offspring (egg vs. Chick), suggesting that stress responses may be adaptively attenuated to improve breeding success and fitness, when reproductive value of the current reproduction is high. Further research is needed to investigate the physiological consequences (energy expenditure, oxidative stress, aging) of social stress in group-living animals
Svensson, Michael B. "Endogenous antioxidants in human skeletal muscle and adaptation in energy metabolism : with reference to exercise-training, exercise-related factors and nutrition /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-433-X.
Повний текст джерелаRadimirsch, Markus [Verfasser]. "Optimisation of Throughput and Energy Efficiency in HIPERLAN Type 2 Networks : Combination of Transmit Power Control and Link Adaptation / Markus Radimirsch." Aachen : Shaker, 2004. http://d-nb.info/1186590130/34.
Повний текст джерелаGunnarsson, David. "Business strategies for the district heating sector in southern Sweden." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105731.
Повний текст джерелаSalim, Christian. "Data Reduction based energy-efficient approaches for secure priority-based managed wireless video sensor networks." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCD052/document.
Повний текст джерелаThe huge amount of data in Wireless Video Sensor Networks (WVSNs) for tiny limited resources sensor nodes increases the energy and bandwidth consumption challenges. Controlling the network is one of the challenges in WMSN due to the huge amount of images sent at the same time from the sensors to the coordinator. In this thesis, to overcome these problems, several contributions have been made. Each contribution concentrates on one or two challenges as follows: In the first contribution, to reduce the energy consumption a new approach for data aggregation in WVSN based on shot similarity functions is proposed. It is deployed on two levels: the video-sensor node level and the coordinator level. At the sensor node level, we propose a frame rate adaptation technique and a similarity function to reduce the number of frames sensed by the sensor nodes and sent to the coordinator. At the coordinator level, after receiving shots from different neighboring sensor nodes, the similarity between these shots is computed to eliminate redundancies. In the second contribution, some processing and analysis are added based on the similarity between frames on the sensor-node level to send only the important frames to the coordinator. Kinematic functions are defined to predict the next step of the intrusion and to schedule the monitoring system accordingly. In the third contribution, on the transmission phase, on the sensor-node level, a new algorithm to extract the differences between two images is proposed. This contribution also takes into account the security challenge by adapting an efficient ciphering algorithm on the sensor node level. In the last contribution, to avoid slower detection of intrusions leading to slower reactions from the coordinator, a mac-layer protocol based on S-MAC protocol has been proposed to control the network. This solution consists in adding a priority bit to the S-MAC protocol to give priority to critical data
Güvenç, İsmail. "Towards practical design of impulse radio ultrawideband systems: Parameter estimation and adaptation, interference mitigation, and performance analysis." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/2541.
Повний текст джерелаLey, Debora. "Sustainable development, climate change, and renewable energy in rural Central America." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:90ce7966-ad99-4bcc-9192-001712ca03f1.
Повний текст джерелаMigazzi, Caroline. "Le droit international face aux défis énergétiques contemporains." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE3017.
Повний текст джерелаCurrent energy challenges are multidimentional in nature as they blend together the economic, social, and environmental fields. They are also global, interconnected and transversal. Energy challenges are apprehended globally by international law, despite some shortcomings. Those shortcomings stem from the strategic nature of energy challenges and their simultaneous dependance on sovereignty. They also come to light in the context of environmental risks and risks of harm to humans. Yet, those shortcomings do not deprive international law of its capacity to adapt to energy challenges. It shows adaptation by taking into account their transversal character and the correlated necessity for solidarity. The inclusive and new finality of pursuing universal access to sustainable energy and the efforts shown toward energy democracy yet reinforce this adaptability. Thus, international law exibits all the tools necessary to help, and also be an engine for the energy transition
Forti, Marc Gonzalez. "Identification of climate mitigation and adaptation measures to improve the resilience and the energy efficiency of Athens : Case study of 5 selected public buildings." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-286204.
Повний текст джерелаEffekterna av klimatförändringen blir alltmer tydliga. Greklands huvudstad Aten påverkas exempelvis av försämrad luftkvalitet, översvämningar och värmeböljor och extrema klimatrelaterade händelser förvärrar situationen i staden. Atens kommun har tillsammans med Europeiska investeringsbanken och EQO-NIXUS (ett privat konsultföretag) genomfört ett projekt för att öka motståndskraften mot klimatförändringens effekter, genom anpassningsåtgärder, där fem offentliga byggnader i olika delar av Atens centrum studeras. Projektet är relaterat till Atens resiliensstrategi som handlar om hur staden ska integrera nya sätt förbereda och skydda staden och dess invånare från framtida extrema händelser och påfrestningar. Denna studie syftar till att undersöka och föreslå anpassningsåtgärder som potentiellt kan tillämpas i de fem olika offentliga byggnaderna för att förbättra energieffektiviteten och resiliensen mot värmeböljor, översvämningar och luftföroreningar. En litteraturstudie har genomförts för att identifiera globala, goda exempel när det gäller energieffektivitet och anpassning till ett förändrat klimat som potentiellt kan tillämpas i de fem byggnaderna. Slutligen har en multikriterieanalys med flera kriterier genomförts för att prioritera vilka åtgärder som är mest relevanta för varje specifik byggnad. Studien visar att energieffektivitet och ökning av allmänhetens medvetenhet totalt sett är de mest relevanta åtgärderna som potentiellt kan tillämpas i byggnaderna för att hantera klimatförändringar. Slutligen, om dessa åtgärder tillämpas och resiliensen och energieffektivitetsåtgärderna förbättras, skulle denna studie kunna vara relevant även för andra byggnader i Aten och därmed bidra till uppfyllelsen av stadens 2030-strategi.
Guan, Li-Shan. "The implication of global warming on the energy performance and indoor thermal environment of air-conditioned office buildings in Australia." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16329/1/Li-Shan_Guan_Thesis.pdf.
Повний текст джерелаGuan, Li-Shan. "The implication of global warming on the energy performance and indoor thermal environment of air-conditioned office buildings in Australia." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16329/.
Повний текст джерелаMartin, De Lagarde Cyril. "Promoting renewable energy : subsidies, diffusion, network pricing, and market impacts Drivers and diffusion of residential photovoltaics in France Network connection schemes for renewable energy: a spatial analysis." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED076.
Повний текст джерелаThis thesis deals with several aspects of the economics of electric renewable energy sources (RES). These have been chosen by many countries, willing to reduce their carbon footprint, in order to fight climate change.As RES are usually not competitive against conventional power plants, they rely on national and local subsidies in order to be profitable. I analyse the efficiency of such support schemes in the case of solar photovoltaics for residential households in France. Communication phenomena also take a huge part in the diffusion process. My work shows in how far these are an additional driver of RES development.Then, I study the impact of regional network connection schemes for renewables in France, in the field of onshore wind energy. These schemes introduce a spatial differentiation of network connection charges. They enable to reallocate investments in regions in which the electricity network is less constrained, and I quantify this reallocation.Electricity networks also play a role in the development of RES through their tarification. The latter is fundamental in the case of self-consumption (or "prosumption"), that puts the budget balance of the network operator at risk. Thus, I derive second-best prices in the case of a two-part energy-capacity tariff.Finally, I analyse the impact of renewable generation on electricity wholesale prices in Germany. I show that RES induce a decrease in prices, which depends on the supply-demand equilibrium. This penalises peaking power plants that are necessary to the security of supply, as well as future renewables, which shall progressively become profitable without subsidies
Rosalen, Eduarda. "A legal framework for ensuring hydropower security in Brazil in the context of climate change." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/102895/1/Eduarda_Rosalen_Thesis.pdf.
Повний текст джерелаFabre, Adrien. "Is decarbonization achievable? : essays on the economics of the energy transition." Thesis, Paris 1, 2020. http://www.theses.fr/2020PA01E011.
Повний текст джерелаThis thesis examines the conditions for the realization of a decarbonized and sustainable industrial civilization by studying certain aspects of its physical feasibility and political acceptability. Chapter 1 studies the evolution of the Energy Return On Investment in different prospective scenarios, and predicts that the overall efficiency of the electricity sector to supply a net energy surplus would be halved in a 100% renewable scenario. Chapter 2 highlights the importance of metal recyclability in a model of optimal extraction of metals and fossil fuels for energy production. The annex to Chapter 2 extends the Karush-Kuhn-Tucker theorem to the case of a convex series under a finite number of constraints. Chapters 3 and 4 are based on a survey of a representative sample of three thousand French people, carried out during the Yellow vests movement. Chapter 3 examines beliefs about a carbon "tax & dividend", a measure touted to combat climate change because of its effectiveness and progressivity. If 70% reject the tax & dividend, it is because of pessimistic perceptions about its properties: in contradiction with the micro-simulations, most believe that their household would lose purchasing power with the reform, perceive it as regressive, and inefficient to reduce pollution and fight climate change. Chapter 4 analyses knowledge, perceptions and values related to climate change, examines opinions on carbon taxation and assesses support for other climate policies
Elpasidou, Sofia. "Study of passive design and slab cooling in adaptation to climate change of a modern residential building in Stockholm." Thesis, KTH, Hållbara byggnader, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-287454.
Повний текст джерелаPåverkan på den byggda miljön från klimatförändringar har upplysts av myndigheter under minst de senaste tio åren, men agerande från byggbranschen för att klimatanpassa är fortfarande låg. Syftet med denna studie är att identifiera en lämplig kylteknik för ett bostadshus i ett framtida varmare klimat för att bibehålla termisk komfort och samtidigt energieffektivitet. Denna examensrapport analyserar och presenterar prestanda hos dels olika passiva system, dels ett kombinerat värme- och kylsystem i bjälklag i ett framtida klimatscenario för att uppnå ett hållbart system som kommer att vara funktionellt och livskraftigt i framtiden. För att verifiera de olika kyllösningarna har simuleringsprogrammet för byggnadsprestanda IDA ICE använts och en fallstudiebyggnad med en simulerad placering i Stockholm har undersökts. Resultaten visar lovande resultat eftersom termisk komfort uppnås och energiprestanda kan bibehållas beroende på valda energikällor.
Dufbäck, Dennis, and Fredrik Håkansson. "Adapting network interactions of a rescue service mobile application for improved battery life." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-139836.
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