Estimação de metas estratégicas por meio de análise por envoltória de dados e modelo da Barganha de Nash: aplicação na área de saúde publica

Pós-graduação em Engenharia Mecânica - FEG

Teds-easy - descrição automática de transducer electronic data sheet

Pós-graduação em Engenharia Elétrica - FEIS

Um modelo bi-nível para o investimento multi-etapa em capacidade de transmissão e geração de energia elétrica em mercados competitivos

Pós-graduação em Engenharia Elétrica - FEIS

Controle de tensão e reativos em redes de distribuição de energia elétrica

Pós-graduação em Engenharia Elétrica - FEIS

Sistemas autônomos de iluminacão pública em corrente contínua

Pós-graduação em Engenharia Elétrica - FEIS

Algoritmo genético especializado aplicado ao planejamento da expansão de sistemas de distribuição de energia elétrica

Pós-graduação em Engenharia Elétrica - FEIS

Análise crítica da operação radial dos sistemas de distribuição de energia elétrica

Pós-graduação em Engenharia Elétrica - FEIS

Modelagem generalizada do problema de planejamento da expansão de sistemas de transmissão

Pós-graduação em Engenharia Elétrica - FEIS

Reconfiguração de sistemas de distribuição utilizando metaheurísticas e critérios de confiabilidade

In an ever more competitive environment, power distribution companies must satisfy two conflicting objectives: minimizing investment costs and the satisfaction of reliability targets. The network reconfiguration of a distribution system is a technique that well adapts to this new deregulated environment for it allows improvement of reliability indices only opening and closing switches, without the onus involved in acquiring new equipment. Due to combinatorial explosion problem characteristic, in the solution are employed metaheuristics methods, which converge to optimal or quasi-optimal solutions, but with a high computational effort. As the main objective of this work is to find the best configuration(s) of the distribution system with the best levels of reliability, the objective function used in the metaheuristics is to minimize the LOLC - Loss Of Load Cost, which is associated with both, number and duration of electric power interruptions. Several metaheuristics techniques are tested, and the tabu search has proven to be most appropriate to solve the proposed problem. To characterize computationally the problem of the switches reconfiguring was developed a vector model (with integers) of the representation of the switches, where each normally open switch is associated with a group of normally closed switches. In this model simplifications have been introduced to reduce computational time and restrictions were made to exclude solutions that do not supply energy to any load point of the system. To check violation of the voltage and loading criteria a study of power flow for the ten best solutions is performed. Also for the ten best solutions a reliability evaluation using Monte Carlo sequential simulation is performed, where it is possible to obtain the probability distributions of the indices and thus calculate the risk of paying penalty due to not meeting the goals. Finally, the methodology is applied in a real Brazilian distribution network, and the results are discussed.

Pesquisa translacional em diabetes melito gestacional e hiperglicemia gestacional leve: conhecimento atual e nossa experiência

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Economic analysis for sizing of sugarcane (Saccharum spp.) mechanized harvesting

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Idosos institucionalizados e depressão: atividades expressivas e seu potencial terapêutico

The influence of emotional condition on quality of life during the aging process is a theme that stands out in the context of research, since the psychosocial skills of the elderly are vulnerable to changes in structure, function body and the environment. Given this, aim of this study was to evaluate the effects of a programming expressive activities in controlling depressive symptoms manifested by institutionalized elderly. Participants were 7 people in a geriatric institution with symptoms suggestive of depression and it was used to evaluate the GSD-15, which was applied at the beginning and end of treatment planning. The intervention was applied for four months, making up two weekly sessions of 75 minutes. Of the total of 5 seniors with probability of depression in the pretest, 3 reached the normal range for depression at post-test, recommending the continuation of the study to a larger sample and greater consistency of results about the effects of activities expressive about depressive symptoms manifested by older people.

Uma investigação do minos e sua aplicação ao problema de fluxo de potência ótimo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Equilíbrio eletrolítico como estratégia nutricional para prevenir queda no desempenho de poedeiras comerciais em condições de alta temperatura

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Otimização de problemas multimodais usando meta-heurísticas evolutivas

Pós-graduação em Engenharia Elétrica - FEIS