Página 2 dos resultados de 69 itens digitais encontrados em 0.045 segundos

‣ Metodologia para auxílio a sistemas de controle de variáveis ambientais em casas de vegetação; Methodology to support environmental variables controls systems on greenhouses

Evandro Gomes Laranjeira
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 20/07/2010 Português
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O plantio em ambiente protegido é incapaz de demonstrar seu máximo potencial de produção se não for submetido a um controle climático adequado. Existem hoje diversos tipos de equipamentos e metodologias que nos permitem desenvolver controles que monitorem o estado de conforto térmico da planta com uso racional de recursos e insumos. Dessa forma, é proposta uma metodologia de controle climático com integração de lógica fuzzy, controles lógicos programáveis e utilizando o cálculo de déficit de pressão de vapor folha-ar, como forma de se estimar o conforto térmico vegetal. Esta metodologia também utilizou métodos geoestatísticos (mapas de krigagem) para avaliação dos efeitos da aplicação das ações de controle sobre o clima interno, bem como monitorar o consumo de energia elétrica dos equipamentos. Foram realizados os testes em dois tratamentos em uma casa de vegetação comercial; e os dados confrontados para avaliação de sua eficiência no que se refere ao consumo de energia e mapas de krigagem das variáveis temperatura e umidade do ar; The protected culture is incapable to demonstrate its production maximum potential while not submitted to an adequate environment control. Nowadays, there are several equipments and methodologies which provides the control development with plant thermal comfort monitoring saving resources and inputs. This way...

‣ Design and evaluation of compact ISAs; Estudo e avaliação de conjuntos de instruções compactos

Bruno Cardoso Lopes
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 201/03/14 Português
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Sistemas embarcados modernos são compostos de SoC heterogêneos, variando entre processadores de baixo e alto custo. Apesar de processadores RISC serem o padrão para estes dispositivos, a situação mudou recentemente: fabricantes estão construindo sistemas embarcados utilizando processadores RISC - ARM e MIPS - e CISC (x86). A adição de novas funcionalidades em software embarcados requer maior utilização da memória, um recurso caro e escasso em SoCs. Assim, o tamanho de código executável é crítico, porque afeta diretamente o número de misses na cache de instruções. Processadores CISC costumavam possuir maior densidade de código do que processadores RISC, uma vez que a codificação de instruções com tamanho variável beneficia as instruções mais usadas, os programas são menores. No entanto, com a adição de novas extensões e instruções mais longas, a densidade do CISC em aplicativos recentes tornou-se similar ao RISC. Nesta tese de doutorado, investigamos a compressibilidade de processadores RISC e CISC; SPARC e x86. Nós propomos uma extensão de 16-bits para o processador SPARC, o SPARC16. Apresentamos também, a primeira metodologia para gerar ISAs de 16-bits e avaliamos a compressão atingida em comparação com outras extensões de 16-bits. Programas do SPARC16 podem atingir taxas de compressão melhores do que outros ISAs...

‣ Eficiência energética de fachadas fotovoltaicas destinadas às diferentes latitudes de Portugal

Sacht, Helenice Maria; Bragança, L.; Almeida, Manuela Guedes de; Caram, Rosana
Fonte: Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) Publicador: Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)
Tipo: Conferência ou Objeto de Conferência
Publicado em /10/2012 Português
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A redução dos níveis de CO2 emitidos para a atmosfera, resultantes do consumo energético, vem constituindo ao longo dos últimos anos uma preocupação global. Neste sentido, a União Européia vem desenvolvendo um conjunto de documentos que visam a regulamentação da redução do consumo de energia e das emissões de gases com efeito estufa, e aumento da quota de energias renováveis até 2020. O uso de sistemas fotovoltaicos em fachadas se insere nesse contexto de aumento da quota de energias renováveis. Os ganhos que a fachada fotovoltaica apresenta são referentes à eficiência energética e ao desempenho ambiental dos edifícios. Diante desses aspectos foi executado um estudo para Portugal sobre uso de painéis fotovoltaicos em fachadas por meio de simulação computacional no qual foram analisadas as características dos painéis mais eficientes. Para alcançar tais resultados, a metodologia incluiu simulações computacionais realizadas com o software SolTerm 5.0. Com base nos resultados, observou-se que existe um potencial para o uso de painéis fotovoltaicos em Portugal, principalmente para latitudes próximas à Évora. Além disso, observou-se que o tipo de tecnologia com maior rendimento são os painéis de silício policristalino na posição inclinada...

‣ Energy efficiency of photovoltaic façade for different latitudes in Portugal

Sacht, Helenice Maria; Bragança, L.; Almeida, Manuela Guedes de
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2013 Português
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The climate and energy package is a set of binding legislations which aims to ensure the European Union meets its ambitious climate and energy targets for 2020. These targets, known as the "20-20-20" targets, have set three key objectives: a 20% reduction in the EU greenhouse gas emissions, a 20% rise in the share of EU energy consumption produced from renewable resources and a 20% improvement in the energy efficiency. More renewable energies will enable the EU to lower greenhouse emissions and make it less dependent on imported energy. Boosting the industry of renewables will encourage technological innovation and employment in Europe. On this topic, photovoltaic façades are known to be a solution that allows both energy efficiency and environmental performance of buildings. This paper reports on a study of façade systems that have incorporated photovoltaic panels, considering computational simulations for Portugal. The main objective is to analyze the characteristics and parameters that define more efficient systems based on computer simulations carried out by Solterm 5.0. The results show the high potential of the use of the proposed technology in Portugal, especially in the Southern region, because of its latitude. Regarding energy efficiency and environmental performance...

‣ Microgeração em sistemas de abastecimento de água - estudo de caso: sistema de arcos - Estremoz

Silva, Sandra Vital
Fonte: Universidade de Évora Publicador: Universidade de Évora
Tipo: Dissertação de Mestrado
Português
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As entidades gestoras de sistemas de abastecimento de água (SAA) enfrentam, atualmente, grandes desafios na promoção da gestão sustentável dos recursos, nomeadamente a água e a energia. Os custos associados à operação e manutenção dos SAA têm vindo a aumentar devido, principalmente, aos custos crescentes da eletricidade e ao envelhecimento dos componentes dos sistemas pelo aumento das perdas físicas de água e das perdas de carga. Estes aumentos de custos não são reflectidos totalmente nos tarifários. As perdas de água são predominantes nos sistemas com maior período de vida, podendo em algumas entidades atingir a ordem dos 50% (BATISTA, 2012). A organização The Alliance to Save Energy estimou que a energia utilizada em sistemas de abastecimento de água, nomeadamente nas estações elevatórias e nas estações de tratamento de água, é cerca de 2 a 3 % da energia consumida no mundo, com um potencial de redução da energia consumida de cerca de 25%, desde que aplicadas medidas de eficiência energética (WATERGY, 2003). O trabalho aqui apresentado tem como objetivo o estudo de uma solução híbrida de produção de energias renováveis, de modo a melhorar a eficiência energética do sistema de abastecimento de água de Arcos...

‣ Parameters and computer software for the evaluation of mass attenuation and mass energy-absorption coefficients for body tissues and substitutes

Okunade, Akintunde A.
Fonte: Medknow Publications Publicador: Medknow Publications
Tipo: Artigo de Revista Científica
Publicado em //2007 Português
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The mass attenuation and energy-absorption coefficients (radiation interaction data), which are widely used in the shielding and dosimetry of X-rays used for medical diagnostic and orthovoltage therapeutic procedures, are strongly dependent on the energy of photons, elements and percentage by weight of elements in body tissues and substitutes. Significant disparities exist in the values of percentage by weight of elements reported in literature for body tissues and substitutes for individuals of different ages, genders and states of health. Often, interested parties are in need of these radiation interaction data for body tissues or substitutes with percentage by weight of elements and intermediate energies that are not tabulated in literature. To provide for the use of more precise values of these radiation interaction data, parameters and computer programs, MUA_T and MUEN_T are presented for the computation of mass attenuation and energy-absorption coefficients for body tissues and substitutes of arbitrary percentage-by-weight elemental composition and photon energy ranging between 1 keV (or k-edge) and 400 keV. Results are presented, which show that the values of mass attenuation and energy-absorption coefficients obtained from computer programs are in good agreement with those reported in literature.

‣ Energy efficiency in office technology

Dandridge, Cyane Bemiss
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 214 leaves; 18074796 bytes; 18074555 bytes; application/pdf; application/pdf
Português
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This thesis, directed toward a wide variety of persons interested in energy efficiency issues with office technology, explores several issues relating to reducing energy use and improving energy efficiency of office equipment. Chapter 2 compares policies and programs in several European countries and the United States that could enhance the energy efficiency of office technology. Different programs are examined, including federal government programs where in some cases target values for power usage of office equipment have already been set. Large customer procurement programs, industry involvement, with emphasis on voluntary labeling programs, and research projects are also examined. Procedures that provide energy consumption measurements of various types of equipment are important for providing information to emerging procurement programs. Two sets of proposed test procedures for testing energy consumption of copiers, fax machines and printers are examined and compared. In Chapter 3, comparisons are made of the electrical power and energy used by computers, displays, copiers, printers and facsimile machines, both while operating and while idle. Technology options for reduced energy and power consumption and improved energy efficiency are examined. As the capability of office equipment has increased...

‣ Information theoretic sensor management

Williams, Jason L
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 203 p.
Português
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Sensor management may be defined as those stochastic control problems in which control values are selected to influence sensing parameters in order to maximize the utility of the resulting measurements for an underlying detection or estimation problem. While problems of this type can be formulated as a dynamic program, the state space of the program is in general infinite, and traditional solution techniques are inapplicable. Despite this fact, many authors have applied simple heuristics such as greedy or myopic controllers with great success. This thesis studies sensor management problems in which information theoretic quantities such as entropy are utilized to measure detection or estimation performance. The work has two emphases: Firstly, we seek performance bounds which guarantee performance of the greedy heuristic and derivatives thereof in certain classes of problems. Secondly, we seek to extend these basic heuristic controllers to nd algorithms that provide improved performance and are applicable in larger classes of problems for which the performance bounds do not apply. The primary problem of interest is multiple object tracking and identification; application areas include sensor network management and multifunction radar control.; (cont.) Utilizing the property of submodularity...

‣ Controlador de demanda e emulador do consumidor residencial para manutenção do conforto do usuário em Smart Grids

Maciel, Savio Alencar
Fonte: Pato Branco Publicador: Pato Branco
Tipo: Dissertação de Mestrado
Português
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This work presents an approach to control demand for residential low voltage consumers, aiming to improve energy efficiency in Smart Grids. Initially, an emulator of residential electric loads is modeled based on the literature. The emulator consists of a reservoir for water heating model, the model of an air conditioner and also models of consumption for lighting, televisions and a refrigerator. The implementation and simulation were performed using software Matlab. The demand control algorithms are investigated in order to verify its performance when applied to the set of residential loads. These algorithms typically perform control demand from a system of priorities. Still, from this analysis it demonstrates that these algorithms consider levels of user comfort, but do not allow the drive of two or more loads in the same period of residence if the demand exceeds the limit. Therefore, we propose a control algorithm that uses Rosenbrock search of demand adaptive method, aiming to overcome these limitations. The proposed procedure performs the operation of residential loads gradually considering priority levels and parameters of comfort of users. It is shown through simulations and experiments using the proposed method can perform the activation of several concurrently loads...

‣ Fuel cycle optimization of thorium and uranium fueled PWR systems

Garel, Keith Courtnay; Driscoll, Michael J.
Fonte: MIT Energy Laboratory Publicador: MIT Energy Laboratory
Tipo: Relatório Formato: 13486795 bytes; application/pdf
Português
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The burnup neutronics of uniform PWR lattices are examined with respect to reduction of uranium ore requirements with an emphasis on variation of the fuel-to-moderator ratio (lattice pitch at constant fuel pin diameter) and the use of thorium. Fuel cycles using all combinations of the major fissile (U-235, U-233, Pu) and fertile (U-238, Th) species are examined. The LEOPARD code and prescriptions developed from a linear reactivity model are used to determine initial core and annual makeup fissile requirements for input into an in-house, simple, systems model, MASFLO-2, which calculates ore (and separative work) requirements per GWeyr for growing, declining, or finite-life nuclear electric systems. For low growth scenarios drier lattices are favored, and the thorium fuel cycle requires as much as 23% less ore than a comparably optimized uranium cycle with full recycle. For unmodified lattices, the thorium fuel cycle with full recycle exhibits long term uranium ore savings of 17% over the comparable uranium cycle with full recycle. For rapidly growing systems, drier lattices, and those using thorium, are less attractive because of their high startup inventories. Thus the introduction of thorium may increase ore and separative work requirements in the short term but will more than repay the ore investment in the very long term. Very little improvement was achieved by varying fuel pin diameter at a given fuel-to-moderator ratio...

‣ WOSUB : a subchannel code for steady-state and transient thermal-hydraulic analysis of BWR fuel pin bundles. Volume III. Assessment and Comparison

Wolf, Lothar; Levin, A.; Faya, A.; Boyd, W.; Guillebaud, Louis Jean Marie
Fonte: MIT Energy Laboratory Publicador: MIT Energy Laboratory
Tipo: Relatório Formato: 10264331 bytes; application/pdf
Português
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The WOSUB-codes are spin-offs and extensions of the MATTEO-code [1]. The series of three reports describe WOSUB-I and WOSUB-II in their respective status as of July 31, 1977. This report is the third in a series of three, the first of which [2] contains all the information about the models, solution methods and constitutive equations and the second [3] being the user's manual of the code. This report summarizes the assessment of the WOSUB- code against experiments and compares its results with the results of other subchannel codes. The following experiments are used for the purpose of the assessment of the code under steady-state conditions: 1) 9-rod GE-tests with radially uniform and non- uniform peaking factor patterns. 2) 16-rod Columbia tests with slight power tilts. 3) Planned 9-rod Swedish tests with very strong power tilts. 4) Actually performed 9-rod Swedish tests with power tilt. 5) 9-rod GE-CHF experiments. The comparison with these data shows that WOSUB is capable of predicting the lower-than-average behavior of the corner sub- channel and the higher-than-average behavior of the center subchannel for both quality and mass flux. None of the other well-known subchannel codes is indeed capable of specifically predicting the correct corner subchannel behavior. These codes seem to inherently suffer from major deficiencies associated with their incorporated mixing models. Therefore...

‣ A Survey of Home Energy Management Systems in Future Smart Grid Communications

Khan, I.; Javaid, N.; Ullah, M. N.; Mahmood, A.; Farooq, M. U.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 26/07/2013 Português
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In this paper we present a systematic review of various home energy management (HEM) schemes. Employment of home energy management programs will make the electricity consumption smarter and more efficient. Advantages of HEM include, increased savings for consumers as well as utilities, reduced peak to average ratio (PAR) and peak demand. Where there are numerous applications of smart grid technologies, home energy management is probably the most important one to be addressed. Utilities across the globe have taken various steps for efficient consumption of electricity. New pricing schemes like, Real Time Pricing (RTP), Time of Use (ToU), Inclining Block Rates (IBR), Critical Peak Pricing (CPP) etc, have been proposed for smart grid. Distributed Energy Resources (DER) (local generation) and/or home appliances coordination along with different tariff schemes lead towards efficient consumption of electricity. This work also discusses a HEM systems general architecture and various challenges in implementation of this architecture in smart grid.; Comment: IEEE 8th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA'13), Compiegne, France

‣ Off-shell helicity amplitudes in high-energy factorization

Kotko, Piotr
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
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In the Catani-Ciafaloni-Hautmann high-energy factorization approach a cross section is expressed as a convolution of unintegrated gluon densities and a gauge-invariant hard process, in which two incoming gluons are off-shell with momenta satisfying certain high-energy kinematics. We present two methods of evaluating the tree-level hard process with multiple final states. The first one assumes that only one of the gluons is off-shell and relies on the Slavnov-Taylor identities. Such asymmetric configuration of incoming gluons is phenomenologically important in small x probing by forward processes. The second method deals also with two off-shell gluons and is based on the analytic continuation of the off-shell gluons momenta to the complex space. The methods were implemented into Monte Carlo computer programs and used in phenomenological applications. The results of both methods are straightforwardly related to Lipatov's effective vertices in quasi-multi-regge kinematics.; Comment: Presented at the Low x workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel

‣ A Cache-Coloring Based Technique for Saving Leakage Energy In Multitasking Systems

Mittal, Sparsh
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 22/09/2013 Português
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47.785645%
There has been a significant increase in leakage energy dissipation of CMOS circuits with each technology generation. Further, due to their large size, last level caches (LLCs) spend a large fraction of their energy in the form of leakage energy and hence, addressing this has become extremely important to meet the challenges of chip power budget. For addressing this, several techniques have been proposed. However, most of these techniques require offline profiling and hence cannot be used for real-life systems which usually run multitasking programs, with possible pre-emptions. In this paper, we propose a dynamic profiling based technique for saving cache leakage energy in multitasking systems. Our technique uses a small coloring-based profiling cache, to estimate performance and energy consumption of multiple cache configurations and then selects the best (least-energy) configuration among them. Our technique uses non-intrusive profiling and saves energy despite intra-task and inter-task variations; thus, it is suitable for multitasking systems. Simulations performed using workloads from SPEC2006 suite show the superiority of our technique over an existing cache energy saving technique. With a 2MB baseline cache, the average saving in memory sub-system energy is 22.8%.; Comment: Cache leakage energy saving technique

‣ BEEBS: Open Benchmarks for Energy Measurements on Embedded Platforms

Pallister, James; Hollis, Simon; Bennett, Jeremy
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
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This paper presents and justifies an open benchmark suite named BEEBS, targeted at evaluating the energy consumption of embedded processors. We explore the possible sources of energy consumption, then select individual benchmarks from contemporary suites to cover these areas. Version one of BEEBS is presented here and contains 10 benchmarks that cover a wide range of typical embedded applications. The benchmark suite is portable across diverse architectures and is freely available. The benchmark suite is extensively evaluated, and the properties of its constituent programs are analysed. Using real hardware platforms we show case examples which illustrate the difference in power dissipation between three processor architectures and their related ISAs. We observe significant differences in the average instruction dissipation between the architectures of 4.4x, specifically 170uW/MHz (ARM Cortex-M0), 65uW/MHz (Adapteva Epiphany) and 88uW/MHz (XMOS XS1-L1).

‣ DCAFE: Dynamic load-balanced loop Chunking & Aggressive Finish Elimination for Recursive Task Parallel Programs

Gupta, Suyash; Shrivastava, Rahul; Nandivada, V. Krishna
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 21/02/2015 Português
Relevância na Pesquisa
47.9428%
In this paper, we present two symbiotic optimizations to optimize recursive task parallel (RTP) programs by reducing the task creation and termination overheads. Our first optimization Aggressive Finish-Elimination (AFE) helps reduce the redundant join operations to a large extent. The second optimization Dynamic Load-Balanced loop Chunking (DLBC) extends the prior work on loop chunking to decide on the number of parallel tasks based on the number of available worker threads, at runtime. Further, we discuss the impact of exceptions on our optimizations and extend them to handle RTP programs that may throw exceptions. We implemented DCAFE (= DLBC+AFE) in the X10v2.3 compiler and tested it over a set of benchmark kernels on two different hardwares (a 16-core Intel system and a 64-core AMD system). With respect to the base X10 compiler extended with loop-chunking of Nandivada et al [Nandivada et al.(2013)Nandivada, Shirako, Zhao, and Sarkar](LC), DCAFE achieved a geometric mean speed up of 5.75x and 4.16x on the Intel and AMD system, respectively. We also present an evaluation with respect to the energy consumption on the Intel system and show that on average, compared to the LC versions, the DCAFE versions consume 71.2% less energy.

‣ A Feasibility Study on Programmer Specific Instruction Set Processors (PSISPs)

Abeysinghe, T. M. R. L. B.; Hassan, N.; Ragel, R. G.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 24/12/2014 Português
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ASIPs are designed in order to execute instructions of a particular domain of applications. The designing of ASIPs addresses the major challenges faced by a system on chip such as size, cost, performance and energy consumption. The higher the number of similar instructions within the domain to be mapped the lesser the energy consumption, the smaller the size and the higher the performance of the ASIP. Thus, designing processors for domains with more similar programs would overcome these issues. This paper describes the investigation of whether the domains of programmer specific programs have any significance like application specific program domains and thus, whether the approach of designing processors known as Programmer Specific Instruction Set Processors is worthwhile. We performed the evaluation at the instruction level by using four different measures to obtain the similarity of programs: (1) by the existence of each instruction, (2) by the frequency of each instruction, (3) by two consecutive instruction patterns and (4) by three consecutive instruction patterns of application specific and programmer specific programs. We found that although programmer specific instructions show some impact on the similarity measures, they are much smaller and therefore insignificant compared to the impact from application specific programs.; Comment: The 7th International Conference on Information and Automation for Sustainability (ICIAfS) 2014

‣ Energy Efficient Scheduling and Routing via Randomized Rounding

Bampis, Evripidis; Kononov, Alexander; Letsios, Dimitrios; Lucarelli, Giorgio; Sviridenko, Maxim
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 19/03/2014 Português
Relevância na Pesquisa
47.66744%
We propose a unifying framework based on configuration linear programs and randomized rounding, for different energy optimization problems in the dynamic speed-scaling setting. We apply our framework to various scheduling and routing problems in heterogeneous computing and networking environments. We first consider the energy minimization problem of scheduling a set of jobs on a set of parallel speed scalable processors in a fully heterogeneous setting. For both the preemptive-non-migratory and the preemptive-migratory variants, our approach allows us to obtain solutions of almost the same quality as for the homogeneous environment. By exploiting the result for the preemptive-non-migratory variant, we are able to improve the best known approximation ratio for the single processor non-preemptive problem. Furthermore, we show that our approach allows to obtain a constant-factor approximation algorithm for the power-aware preemptive job shop scheduling problem. Finally, we consider the min-power routing problem where we are given a network modeled by an undirected graph and a set of uniform demands that have to be routed on integral routes from their sources to their destinations so that the energy consumption is minimized. We improve the best known approximation ratio for this problem.; Comment: 27 pages

‣ Incentive Design and Utility Learning via Energy Disaggregation

Ratliff, Lillian J.; Dong, Roy; Ohlsson, Henrik; Sastry, S. Shankar
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
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The utility company has many motivations for modifying energy consumption patterns of consumers such as revenue decoupling and demand response programs. We model the utility company--consumer interaction as a principal--agent problem. We present an iterative algorithm for designing incentives while estimating the consumer's utility function. Incentives are designed using the aggregated as well as the disaggregated (device level) consumption data. We simulate the iterative control (incentive design) and estimation (utility learning and disaggregation) process for examples including the design of incentives based on the aggregate consumption data as well as the disaggregated consumption data.

‣ Toward high performance and energy efficiency on many-core architectures

Garcia, Elkin
Fonte: University of Delaware Publicador: University of Delaware
Tipo: Tese de Doutorado
Português
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Gao, Guang R.; The research proposed in this thesis will provide an analysis of these new scenarios, proposing new methodologies and solutions that leverage these new challenges in order to increase the performance and energy efficiency of modern many-core architectures. During the pursue of these objectives, this research intends to answer the following question: 1. Which is the impact of low-level compiler transformations such as tiling and percolation to effectively produce high performance code for many-core architectures? 2. What are the tradeoffs of static and dynamic scheduling techniques to efficiently schedule fine grain tasks with hundreds of threads sharing multiple resources under different conditions in a single chip? 3. Which hardware architecture features can contribute to better scalability and higher performance of scheduling techniques on many-core architectures on a single-chip? 4. How to effectively model high performance programs on many-core architectures under resource coordination conditions? 5. How to efficiently model energy consumption on many-cores managing tradeoffs between scalability and accuracy? 6. Which are feasible methodologies for designing power-aware tiling transformations on many-core architectures? (Abstract shortened by UMI.); University of Delaware...