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Готові списки джерел за темами / ENERGY EFFICIENT TECHNIQUES / Дисертації

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Дисертації з теми "ENERGY EFFICIENT TECHNIQUES"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Miliotis, Vasileios. "Energy efficient offloading techniques for heterogeneous networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/457139.

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Mobile data offloading has been proposed as a solution for the network congestion problem that is continuously aggravating due to the increase in mobile data demand. The concept of offloading refers to the exploitation of network heterogeneity with the objective to mitigate the load of the cellular network infrastructure. In this thesis a multicast protocol for short range networks that exploits the characteristics of physical layer network coding is presented. In the proposed protocol, named CooPNC, a novel cooperative approach is provided that allows collision resolutions with the use of an

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2

Knauth, Thomas. "Energy Efficient Cloud Computing: Techniques and Tools." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-164391.

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Data centers hosting internet-scale services consume megawatts of power. Mainly for cost reasons but also to appease environmental concerns, data center operators are interested to reduce their use of energy. This thesis investigates if and how hardware virtualization helps to improve the energy efficiency of modern cloud data centers. Our main motivation is to power off unused servers to save energy. The work encompasses three major parts: First, a simulation-driven analysis to quantify the benefits of known reservation times in infrastructure clouds. Virtual machines with similar expiratio

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3

Prathipati, Rajesh Babu. "Energy efficient scheduling techniques for real-time embedded systems." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/194.

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Battery-powered portable embedded systems have been widely used in many applications. These embedded systems have to concurrently perform a multitude of complex tasks under stringent time constraints. As these systems become more complex and incorporate more functionality, they became more power-hungry. Thus, reducing power consumption and extending battery lifespan while guaranteeing the timing constraints has became a critical aspect in designing such systems. This gives rise to three aspects of research: (i) Guaranteeing the execution of the hard real-time tasks by their deadlines, (ii) Det

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4

Osuolale, Funmilayo Nihinlola. "Energy efficient control and optimisation techniques for distillation processes." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/3038.

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Distillation unit is one of the most energy intensive processes and is among the major CO2 emitter in the chemical and petrochemical industries. In the quest to reduce the energy consumption and hence the environmental implications of unutilised energy, there is a strong motivation for energy saving procedures for conventional columns. Several attempts have been made to redesign and heat integrate distillation column with the aim of reducing the energy consumption of the column. Most of these attempts often involve additional capital costs in implementing. Also a number of works on applying th

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5

Akbar, Sunila. "Heterogeneous cellular networks with energy and spectral efficient techniques." Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/heterogeneous-cellular-networks-with-energy-and-spectral-efficient-techniques(032b2fb8-07ab-474f-b9b7-1b93a4af29f0).html.

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Owing to the dramatic increase in the smart devices' users in quest of high link capacity, the design of the next generation of wireless networks will necessarily have to consider spectral and energy effciency as the key pillars. The future wireless heterogeneous cellular networks (HCNs), featuring planned base stations (BSs), overlaid with unplanned micro, pico and femto BSs, can provide substantial gains in throughput and user experience as compared to the conventional homogeneous networks. My research is focusing on developing analytical models for HCNs employing spectrum and energy efficie

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6

Hartley, Daniel Aaron 1977. "System shutdown techniques for energy efficient real time computation." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86465.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (leaves 30-31).<br>by Daniel Aaron Hartley.<br>M.Eng.

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7

Kandala, Veera Raghavendra Sai Mallik. "ENERGY EFFICIENT CIRCUIT TECHNIQUES FOR SUCCESSIVE APPROXIMATION REGISTER ADC." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/dissertations/539.

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Charge-scaling (CS) successive approximation register (SAR) ADC's are widely used in the design of low power electronics. Significant portions of CS-SAR ADC power are consumed by CS capacitor arrays and comparator circuits. This Dissertation presents circuit techniques to reduce the power consumption of both CS capacitor array and the latch comparator during ADC operations. The impacts of the proposed techniques on ADC accuracies are analyzed and circuit techniques are presented to address the accuracy concerns. The dissertation also presents techniques to cope with capacitor mismatches, whic

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8

Ankerfors, Mikael. "Microfibrillated cellulose : Energy-efficient preparation techniques and key properties." Licentiate thesis, KTH, Fiberteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102949.

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This work describes three alternative processes for producing microfibrillated cellulose (MFC) in which pulp fibres are first pre-treated and then homogenized using a high-pressure homogenizer. In one process, fibre cell wall delamination was facilitated with a combined enzymatic and mechanical pre-treatment. In the two other processes, cell wall delamination was facilitated by pre-treatments that introduced anionically charged groups into the fibre wall, by means of either a carboxymethylation reaction or irreversibly attaching carboxymethyl cellulose (CMC) onto the fibres. All three processe

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9

Ankerfors, Mikael. "Microfibrillated cellulose: Energy-efficient preparation techniques and applications in paper." Doctoral thesis, KTH, Fiberteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159222.

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Анотація:

This work describes three alternative processes for producing microfibrillated cellulose (MFC; also referred to as cellulose nanofibrils, CNF) in which bleached pulp fibres are first pretreated and then homogenized using a high-pressure homogenizer. In one process, fibre cell wall delamination was facilitated by a combined enzymatic and mechanical pretreatment. In the two other processes, cell wall delamination was facilitated by pretreatments that introduced anionically charged groups into the fibre wall, by means of either a carboxymethylation reaction or irreversibly attaching carboxymethyl

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10

Nguyen, Viet-Hoa. "Energy-efficient cooperative techniques for wireless body area sensor networks." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S011/document.

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Pour réduire la consommation d'énergie due aux transmissions radio dans les réseaux de capteurs sans ﬁl, nous proposons une nouvelle approche associant les techniques de précodage MIMO et de relais, appelé précodage distribué max-dmin (DMP). Considérant une source et un relais avec une antenne chacun, et une destination disposant de deux antennes, nous déployons un système MIMO précodé virtuel 2 × 2. Dans ce contexte, nous étudions deux techniques de relais Amplify and Forward (AF) et Decode and Forward (DF). Des comparaisons en termes de taux d'erreur et d'efﬁcacité énergétique par rapport au

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11

Mahrous, Hesham. "Energy efficient compression techniques for biological signals on a sensors node." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61057.

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Compression of biological signals is rapidly gaining much attention in research especially for Wireless Body Area Networks (WBANs) applications. This is because of their demonstrated potential in assisting physicians and patients, and helping them achieve a more convenient lifestyle. This work focuses on some problems arising in the deployment of EEG signals in WBANs where EEG data is collected and then transmitted using devices powered by batteries. To elongate the battery life, the energy consumed by acquiring, processing and transmitting the data has to be minimized. Lots of work using Comp

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12

Roncone, Roberto. "Fast and energy efficient synchronization techniques for near-threshold multiprocessor clusters." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187027.

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Clustered many-core architectures have been successfully exploited in a broad range of applications: from the HPC to the low-power embedded systems. The main goal of this kind of architecture is to provide high computational eciency independently from the workload and the application domain. Depending on the cluster conguration, the number of cores available in these systems can easily grow leading to a huge cost related to threads synchronization. In this optics, this thesis work is focused on the exploration and design of solutions aimed to improve both performance and power consumption of t

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13

ANDO, Hideki, Kengo IWAMOTO, and Kazunaga HYODO. "Energy-Efficient Pre-Execution Techniques in Two-Step Physical Register Deallocation." Institute of Electronics, Information and Communication Engineers, 2009. http://hdl.handle.net/2237/14940.

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14

Lakshmikanthan, Preetham. "Novel energy-efficient leakage current minimization techniques for CMOS VLSI circuits." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2007. http://wwwlib.umi.com/cr/syr/main.

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15

Yatawatta, Sarod Petropulu Athina P. "Efficient signal processing techniques for future wireless communications systems /." Philadelphia, Pa. : Drexel University, 2004. http://dspace.library.drexel.edu/handle/1860/374.

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16

Rais, Issam. "Discover, model and combine energy leverages for large scale energy efficient infrastructures." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEN051/document.

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Анотація:

La consommation énergétique de nos entités de calculs à grande échelle est une problématique de plus en plus inquiétante. Il est d'autant plus inquiétant que nous nous dirigeons vers "L'exascale",machine qui calcule 10^18 opérations flottantes par secondes, soit 10 fois plus que les meilleurs machines publiques actuelles. En 2017, les data-center consommaient 7% de la demande globale et étaient responsable de 2% de l’émission globale de CO2. Avec la multiplication actuelle du nombre d'outils connectés par personne, réduire la consommation énergétique des data-centers et supercalculateurs à gra

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17

Gupta, Manik. "Data-centric energy efficient adaptive sampling techniques for wireless pollution sensor networks." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8189.

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Air pollution is one of the gravest problems being faced by modern world, and urban traffic emissions are the single major source of air pollution. This work is founded on collaboration with environmental scientists who need fine grained data to enable better understanding of pollutant distribution in urban street canyons. “Wireless sensor networks” can be used to deploy a significant number of sensors within a space as small as a single street canyon and capture simultaneous readings both in the time and space domain. Sensor energy management becomes the most critical constraints of such a so

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18

Wang, Rui. "Energy-efficient LTE transmission techniques : introducing Green Radio from resource allocation perspective." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/9596.

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Energy consumption has recently become a key issue from both environmental and economic considerations. A typical mobile phone network in the UK may consume approximately 40-50 MW, contributing a significant proportion of the total energy consumed by the information technology industry. With the worldwide growth in the number of mobile subscribers, the associated carbon emissions and growing energy costs are becoming a significant operational expense, leading to the need for energy reduction. The Mobile VCE Green Radio Project has been launched, which targets to achieve 100x energy reduction o

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19

Sembrant, Andreas. "Hiding and Reducing Memory Latency : Energy-Efficient Pipeline and Memory System Techniques." Doctoral thesis, Uppsala universitet, Avdelningen för datorteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-306369.

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Memory accesses in modern processors are both far slower and vastly more energy-expensive than the actual computations. To improve performance, processors spend a significant amount of energy and resources trying to hide and reduce the memory latency. To hide the latency, processors use out-order-order execution to overlap memory accesses with independent work and aggressive speculative instruction scheduling to execute dependent instructions back-to-back. To reduce the latency, processors use several levels of caching that keep frequently used data closer to the processor. However, these opti

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20

Yadav, Anil. "Exploration Of Energy And Area Efficient Techniques For Coarse-grained Reconfigurable Fabrics." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc103413/.

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Coarse-grained fabrics are comprised of multi-bit configurable logic blocks and configurable interconnect. This work is focused on area and energy optimization techniques for coarse-grained reconfigurable fabric architectures. In this work, a variety of design techniques have been explored to improve the utilization of computational resources and increase energy savings. This includes splitting, folding, multi-level vertical interconnect. In addition to this, I have also studied fully connected homogeneous and heterogeneous architectures, and 3D architecture. I have also examined some of the h

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21

Muirhead, David S. "Low complexity multiple antenna techniques for energy efficient indoor small cell base stations." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/810905/.

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With densification and heterogeneity being dominant themes for current third, fourth and future fifth generation networks, small cell base stations (SBSs) are expected to see widespread use and deployment. Using multiple antennas, such base stations can improve link reliability and increase spectral efficiency through diversity, beamforming and multiple input-multiple output (MIMO) spatial multiplexing. However, the implementation of such schemes comes at an increased complexity leading to an additional cost and power expenditure. This conflicts with simple design and growing energy efficiency

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22

Consoli, Elio. "Nanometer CMOS Clocked Storage Elements: Optimization Techniques, Comparison and Novel Energy-Efficient Design Solutions." Doctoral thesis, Università di Catania, 2012. http://hdl.handle.net/10761/1075.

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Clocked storage elements are among the most important elements in the design of digital systems, such as microprocessors, since they allow to synchronize and regulate the entire flow of digital data within the system. With the aim of obtaining conspicuous performance increments at each process generation, dimensional scaling has been supported by the reduction of the number of logic stages within each pipeline stage. Therefore, an increasing impact of the timing overhead due to clocked storage elements on the clock period can be observed. Moreover, the continuous increase in energy consumption

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23

Le, Borgne Yann-Aël. "Learning in wireless sensor networks for energy-efficient environmental monitoring." Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210334.

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Wireless sensor networks form an emerging class of computing devices capable of observing the world with an unprecedented resolution, and promise to provide a revolutionary instrument for environmental monitoring. Such a network is composed of a collection of battery-operated wireless sensors, or sensor nodes, each of which is equipped with sensing, processing and wireless communication capabilities. Thanks to advances in microelectronics and wireless technologies, wireless sensors are small in size, and can be deployed at low cost over different kinds of environments in order to monitor both

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24

Marr, Bo. "Learning, probabilistic, and asynchronous technologies for an ultra efficient datapath." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31724.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Paul Hasler; Committee Co-Chair: David V. Anderson. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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25

Ghneimat, Ahmed Ali Hassan. "Adaptive technique for energy management in wireless sensor networks : development, simulation and evaluation of adaptive techniques for energy efficient routing protocols applied to cluster based wireless sensor networks." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5751.

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Recently, wireless sensor networks have become one of the most exciting areas for research and development. However, sensor nodes are battery operated, thus the sensor's ability to perform its assigned tasks is limited by its battery capacity; therefore, energy efficiency is considered to be a key issue in designing WSN applications. Clustering has emerged as a useful mechanism for trade-off between certain design goal conflicts; the network life time, and the amount of data obtained. However, different sources of energy waste still exist. Furthermore, in such dynamic environments, different d

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26

Ghneimat, Ahmed A. H. "Adaptive technique for energy management in wireless sensor networks. Development, simulation and evaluation of adaptive techniques for energy efficient routing protocols applied to cluster based wireless sensor networks." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5751.

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Анотація:

Recently, wireless sensor networks have become one of the most exciting areas for research and development. However, sensor nodes are battery operated, thus the sensor¿s ability to perform its assigned tasks is limited by its battery capacity; therefore, energy efficiency is considered to be a key issue in designing WSN applications. Clustering has emerged as a useful mechanism for trade-off between certain design goal conflicts; the network life time, and the amount of data obtained. However, different sources of energy waste still exist. Furthermore, in such dynamic environments, dif

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27

Knauth, Thomas [Verfasser], Christof [Akademischer Betreuer] Fetzer, and Rüdiger [Akademischer Betreuer] Kapitza. "Energy Efficient Cloud Computing: Techniques and Tools / Thomas Knauth. Gutachter: Christof Fetzer ; Rüdiger Kapitza. Betreuer: Christof Fetzer." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://d-nb.info/1070478083/34.

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28

Sefunç, Merve [Verfasser], Frank [Gutachter] Ellinger, and Eduard A. [Gutachter] Jorswieck. "Index Modulation Techniques for Energy-efficient Transmission in Large-scale MIMO Systems / Merve Sefunc ; Gutachter: Frank Ellinger, Eduard A. Jorswieck." Dresden : Technische Universität Dresden, 2020. http://d-nb.info/1227833709/34.

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29

Lal, Sohan [Verfasser], Ben [Akademischer Betreuer] Juurlink, Ben [Gutachter] Juurlink, H. A. G. [Gutachter] Wijshoff, and Akash [Gutachter] Kumar. "Power modeling and architectural techniques for energy-efficient GPUs / Sohan Lal ; Gutachter: Ben Juurlink, H.A.G. Wijshoff, Akash Kumar ; Betreuer: Ben Juurlink." Berlin : Technische Universität Berlin, 2019. http://d-nb.info/1200467167/34.

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30

Schnieders, Jürgen. "Passive houses in South West Europe : a quantitative investigation of some passive and active space conditioning techniques for highly energy efficient dwellings in the South West European region /." Kaiserslautern : Techn. Univ, 2009. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=018763226&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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31

Ahmed, Omar W. "Enhanced flare prediction by advanced feature extraction from solar images : developing automated imaging and machine learning techniques for processing solar images and extracting features from active regions to enable the efficient prediction of solar flares." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5407.

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Space weather has become an international issue due to the catastrophic impact it can have on modern societies. Solar flares are one of the major solar activities that drive space weather and yet their occurrence is not fully understood. Research is required to yield a better understanding of flare occurrence and enable the development of an accurate flare prediction system, which can warn industries most at risk to take preventative measures to mitigate or avoid the effects of space weather. This thesis introduces novel technologies developed by combining advances in statistical physics

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32

Ahmed, Omar Wahab. "Enhanced flare prediction by advanced feature extraction from solar images : developing automated imaging and machine learning techniques for processing solar images and extracting features from active regions to enable the efficient prediction of solar flares." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5407.

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Space weather has become an international issue due to the catastrophic impact it can have on modern societies. Solar flares are one of the major solar activities that drive space weather and yet their occurrence is not fully understood. Research is required to yield a better understanding of flare occurrence and enable the development of an accurate flare prediction system, which can warn industries most at risk to take preventative measures to mitigate or avoid the effects of space weather. This thesis introduces novel technologies developed by combining advances in statistical physics, imag

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33

Dickov, Branimir. "MPI layer techniques to improve network energy efficiency." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/334181.

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Interconnection networks represent the backbone of large-scale parallel systems. In order to build ultra-scale supercomputers larger interconnection networks are being designed and deployed. As compute nodes become more energy-efficient, the interconnect is accounting for an increasing proportion of the total system energy consumption. The interconnect's energy consumption is, however, only starting to receive serious attention. Most of this power consumption is due to the interconnection links. The problem, in terms of power, of an interconnect link is that its power consumption is almost con

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34

Chen, Hu. "Exploiting Adaptive Techniques to Improve Processor Energy Efficiency." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4985.

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Rapid device-miniaturization keeps on inducing challenges in building energy efficient microprocessors. As the size of the transistors continuously decreasing, more uncertainties emerge in their operations. On the other hand, integrating more and more transistors on a single chip accentuates the need to lower its supply-voltage. This dissertation investigates one of the primary device uncertainties - timing error, in microprocessor performance bottleneck in NTC era. Then it proposes various innovative techniques to exploit these opportunities to maintain processor energy efficiency, in the con

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35

Atojoko, Achimugu A. "Design and Modelling of Passive UHF RFID Tags for Energy Efficient Liquid Level Detection Applications. A study of various techniques in the design, modelling, optimisation and deployment of RFID reader and passive UHF RFID tags to achieve effective performance for liquid sensing applications." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/15906.

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Sewer and oil pipeline spillage issues have become major causes of pollution in urban and rural areas usually caused by blockages in the water storage and drainage system, and oil spillage of underground oil pipelines. An effective way of avoiding this problem will be by deploying some mechanism to monitor these installations at each point in time and reporting unusual liquid activity to the relevant authorities for prompt action to avoid a flooding or spillage occurrence. This research work presents a low cost energy efficient liquid level monitoring technique using Radio Frequency Identifica

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36

Kumirai, Tichaona. "Energy efficiency interventions for residential buildings in Bloemfontein using passive energy techniques." Thesis, Bloemfontein : Central University of Technology, Free State, 2010. http://hdl.handle.net/11462/124.

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Thesis (M. Tech. (Mech. Eng.)) -- Central University of Technology, Free state, 2010<br>The purpose of this research is to minimize the use of active systems in providing thermal comfort in single-family detached, middle to high income residential buildings in Bloemfontein. The typical case study house was selected according to the criteria as reviewed by Mathews et al., (1999). Measurements were taken for seven days (18 – 24 May 2009). The measurements were carried out in the winter period for Bloemfontein, South Africa. Ecolog TH1, humidity and temperature data logger was used in doing t

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37

Wang, Defu [Verfasser]. "Highly Efficient Microwave Rectifiers for RF Energy Recycling Technique / Defu Wang." München : Verlag Dr. Hut, 2019. http://d-nb.info/1178899160/34.

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38

Staples, Jacob. "Resource banking an energy-efficient, run-time adaptive processor design technique." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5047.

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Анотація:

From the earliest and simplest scalar computation engines to modern superscalar out-of-order processors, the evolution of computational machinery during the past century has largely been driven by a single goal: performance. In today's world of cheap, billion-plus transistor count processors and with an exploding market in mobile computing, a design landscape has emerged where energy efficiency, arguably more than any other single metric, determines the viability of a processor for a given application. The historical emphasis on performance has left modern processors bloated and over provision

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Tavarageri, Sanket. "Compiler Techniques for High Performance Computing, Energy Efficiency, and Resilience." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397493916.

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Bao, Wenlei. "Compiler Techniques for Transformation Verification, Energy Efficiency and Cache Modeling." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524073563586939.

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Sharkey, Joseph James. "Resource management techniques for performance and energy efficiency in multithreaded processors." Diss., Online access via UMI:, 2006.

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Morfopoulou, Christina. "Queuing analysis and optimization techniques for energy efficiency in packet networks." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11681.

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Energy efficiency in all aspects of human life has become a major concern, due to its significant environmental impact as well as its economic importance. Information and Communication Technology (ICT) plays a dual role in this; not only does it constitute a major consumer itself (estimated 2-10% of the global consumption), but is also expected to enable global energy efficiency through new technologies tightly dependent on networks (smart grid, smart homes, cloud computing etc.). To this purpose, this work studies the problem of energy efficiency in wired networks. As this subject has recentl

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Al-Hajri, Muhannad Khaled. "Object Tracking Sensor Networks using Sequential Patterns in an Energy Efficient Prediction Technique." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28880.

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Wireless Sensor Networks applications are attracting more and more research, especially in energy saving techniques/architectures which is the focal point of most researchers in this area. One of the most interesting applications of Wireless Sensor Networks is the Object Tracking Sensor Networks which are used mainly to track certain objects in a monitored area and to report its location to the application's users. This application is a major energy consumer among other Wireless Sensor Networks applications. There have been many techniques that assist in delivering the required data while main

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Al-Mohandes, Ibrahim. "Energy-Efficient Turbo Decoder for 3G Wireless Terminals." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/838.

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Since its introduction in 1993, the turbo coding error-correction technique has generated a tremendous interest due to its near Shannon-limit performance. Two key innovations of turbo codes are parallel concatenated encoding and iterative decoding. In its IMT-2000 initiative, the International Telecommunication Union (ITU) adopted turbo coding as a channel coding standard for Third-Generation (3G) wireless high-speed (up to 2 Mbps) data services (cdma2000 in North America and W-CDMA in Japan and Europe). For battery-powered hand-held wireless terminals, energy consumption is a major

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Clark, Craig. "Use of hybrid ventilation techniques for improved energy efficiency of fan systems." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33962.

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The goal of this thesis was to improve the energy efficiency of building ventilation systems by exploring new methods of applying natural ventilation concepts. Strictly natural systems have limitations in which climates they can function or can provide optimal performance; these limitations lead to the use of mechanical or hybrid ventilation. This study looked at methods of combining the operation of the systems, such that the natural components improve the efficiency of the mechanical system.

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Coelho, Bernardete. "Energy efficiency of water supply systems using optimisation techniques and micro-hydroturbines." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21255.

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Doutoramento em Engenharia Mecânica<br>A eficiência energética representa um papel significativo no esforço para a sustentabilidade por parte das empresas das águas, uma vez que, mundialmente, 35% dos custos totais com a produção de água (12 mil milhões de euros) estão a ser gastos em energia. Os principais obstáculos à melhoria da eficiência energética dos sistemas de abastecimento de água estão essencialmente relacionados com a complexidade dos sistemas e também com os baixos níveis de resiliência a nível operacional. O principal objectivo desta tese é o desenvolvimento de uma metodol

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JAHIER, PAGLIARI DANIELE. "Design Techniques for Energy-Quality Scalable Digital Systems." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2707890.

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Energy efficiency is one of the key design goals in modern computing. Increasingly complex tasks are being executed in mobile devices and Internet of Things end-nodes, which are expected to operate for long time intervals, in the orders of months or years, with the limited energy budgets provided by small form-factor batteries. Fortunately, many of such tasks are error resilient, meaning that they can toler- ate some relaxation in the accuracy, precision or reliability of internal operations, without a significant impact on the overall output quality. The error resilience of an application may

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Angelopoulos, Georgios Ph D. Massachusetts Institute of Technology. "Improving the energy efficiency and reliability of wireless sensor networks using coding techniques." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103716.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 129-145).<br>Wireless sensor networks (WSNs) are rapidly being adopted in a wide range of applications, from continuous health monitoring to automated industrial infrastructures, and soon will have a major environmental, financial and societal impact. Some of the main technical challenges in designing and deploying WSNs are meeting their communications reliability and energy consumption req

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Huang, Zheng, Takaya Yamazato, and Masaaki Katayama. "Energy Efficiency of Cooperative MISO Technique in Multi-hop Wireless Sensor Networks." IEEE, 2008. http://hdl.handle.net/2237/12137.

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Tarragona, Roig Joan. "Smart control techniques for thermal energy storage systems." Doctoral thesis, Universitat de Lleida, 2021. http://hdl.handle.net/10803/671420.

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Augmentar l’ús d’energia provinent de fonts renovables és important en la lluita contra el canvi climàtic. No obstant, la seva implantació planteja reptes importants deguts a la manca de continuïtat en la seva generació i al desajust que existeix amb els perfils de consum. La present tesi doctoral s’emmarca en dues propostes per incrementar el rendiment dels panells fotovoltaics en l’àmbit dels sistemes de calefacció per edificis. Per una banda, el sistema integra un tanc d'emmagatzematge d'energia tèrmica, que permet emmagatzemar l'energia generada pels panells durant el dia, a fi de poder-la

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