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Optimal Demand-Side Management for Smart Micro Grid with Storage  [PDF]
Hugor Ininahazwe, Christopher Maina Muriithi, Stanley Kamau
Journal of Power and Energy Engineering (JPEE) , 2018, DOI: 10.4236/jpee.2018.62004
Abstract: In this paper, an autonomous and distributive demand-side management based on Bayesian game theory is developed and applied among users in a grid connected micro-grid with storage. To derive that strategy, an energy consumption of shiftable loads belonging to a given user is modelled as a noncooperative three-player game of incomplete information, in which each user plays against the storage unit and an opponent gathering all the other users in the micro-grid. Each player is assumed to be endowed with statistical information about its behavior and that of its opponents so that he can take actions maximizing his expected utility. Results of the proposed strategy evaluated by simulating, under MATLAB environment, a connected micro-grid with storage device evidence its efficacy when employed to manage the charging of electric vehicles.
Dosimetria de pacientes e médicos em interven??es coronárias percutaneas em Recife, Pernambuco, Brasil
Silva, Maria do Socorro Rocha da;Khoury, Helen Jamil;Borrás, Cari;Oliveira, André Ferr?o;Vianna, Hugor Ferreira de Paiva;Oliveira, Flavio Roberto Azevedo de;Japyassú, Flavio Adolpho Aranha;Mota, Flávio Braga;
Radiologia Brasileira , 2011, DOI: 10.1590/S0100-39842011000200008
Abstract: objective: the present study was aimed at estimating the values of radiation doses received by physicians and patients during interventional cardiology procedures performed at a public hospital in the city of recife, pernambuco, brazil. materials and methods: measurements were made in two cardiologists with more than ten years of experience and in 31 adult patients, with 22 of them being clinically followed-up after the procedure. the individual irradiation parameters were documented. results: the values for maximum patients skin dose ranged between 612 and 8,642 mgy, achieving more than 2,000 mgy in 53% of the patients; such dose values may cause deterministic effects. as regards the physicians, the mean effective dose per procedure was 11 μsv, and the highest mean equivalent doses in the limbs were 923 μsv in the left foot, 514 μsv in the right foot, 382 μsv in the left hand, and 150 μsv in the left eye. depending on the number of procedures, the doses received by the physician may exceed the dose limits established by the brazilian and international standards. conclusion: the obtained results indicate the necessity of adopting strategies for optimizing the radiological protection for both patients and physicians.
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