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Wyszukujesz frazę "Matias, C. A." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Increasing photovoltaic panel power through water cooling technique
    Autorzy:
    Matias, C. A.
    Santos, L. M.
    Alves, A. J.
    Calixto, W. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/136175.pdf
    Data publikacji:
    2017
    Wydawca:
    EEEIC International Barbara Leonowicz Szabłowska
    Tematy:
    photovoltaic panel
    water cooling
    increasing electrical efficiency
    efficiency increase
    Opis:
    This paper presents the development of a cooling apparatus using water in a commercial photovoltaic panel in order to analyze the increased efficiency through decreased operating temperature. The system enables the application of reuse water flow, at ambient temperature, on the front surface of PV panel and is composed of an inclined plane support, a perforated aluminum profile and a water gutter. A luminaire was specially developed to simulate the solar radiation over the module under test in a closed room, free from the influence of external climatic conditions, to carry out the repetition of the experiment in controlled situations. The first case study was published at EEEIC2016 conference where the panel was submitted to different rates of water flow, from 1 L/min to 4 L/min. In the test conditions without cooling apparatus, the panel reached about 70°C and produced approximately 63Wh. With the cooling apparatus with water flow rate of 2 L/min, the module reached about 50°C and produced approximately 77Wh. However, it has been observed that this water flow was overestimated. A second case study was carried out in order to perform the threshold between the flow and the energy produced. The best ratio was flow of 0.6 L/min and net energy of 77.41Wh. Gain of 22.69% compared to the panel without the cooling system. The best water flow rate was of 0.6 L/min and net energy of 77.41Wh. Gain of 22.69% compared to the panel without the cooling system.
    Źródło:
    Transactions on Environment and Electrical Engineering; 2017, 2, 1; 60-66
    2450-5730
    Pojawia się w:
    Transactions on Environment and Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation and analysis of an isolated full-bridge DC/DC boost converter operating with a modified perturb and observe maximum power point tracking algorithm
    Autorzy:
    Matias, C. A.
    Medeiros, G. P.
    Moraes, P. H. F.
    Fernandes, B. de A.
    Alves, A. J.
    Calixto, W. P.
    Furriel, G. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/136247.pdf
    Data publikacji:
    2017
    Wydawca:
    EEEIC International Barbara Leonowicz Szabłowska
    Tematy:
    energy efficiency
    geometric Brownian motion
    Monte Carlo simulation
    Opis:
    The purpose of the present study is to simulate and analyze an isolated full-bridge DC/DC boost converter, for photovoltaic panels, running a modified perturb and observe maximum power point tracking method. The zero voltage switching technique was used in order to minimize the losses of the converter for a wide range of solar operation. The efficiency of the power transfer is higher than 90% for large solar operating points. The panel enhancement due to the maximum power point tracking algorithm is 5.06%.
    Źródło:
    Transactions on Environment and Electrical Engineering; 2017, 2, 2; 45-50
    2450-5730
    Pojawia się w:
    Transactions on Environment and Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Derivative-free nonlinear optimization filter simplex
    Autorzy:
    Correia, A.
    Matias, J.
    Mestre, P.
    Serodio, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/908145.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    optymalizacja nieliniowa
    optymalizacja ograniczona
    metoda filtru
    nonlinear constrained optimization
    filter methods
    direct search methods
    Opis:
    The filter method is a technique for solving nonlinear programming problems. The filter algorithm has two phases in each iteration. The first one reduces a measure of infeasibility, while in the second the objective function value is reduced. In real optimization problems, usually the objective function is not differentiable or its derivatives are unknown. In these cases it becomes essential to use optimization methods where the calculation of the derivatives or the verification of their existence is not necessary: direct search methods or derivative-free methods are examples of such techniques. In this work we present a new direct search method, based on simplex methods, for general constrained optimization that combines the features of simplex and filter methods. This method neither computes nor approximates derivatives, penalty constants or Lagrange multipliers.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2010, 20, 4; 679-688
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A 16-year-old patient with Charcot Marie Tooth disease in variant c.217G>C of the INF2 gene and focal glomerulosclerosis – a case report
    Autorzy:
    Przygoda, Maria
    Matias, Dawid
    Jurczak, Maciej
    Sokołowska, Aldona
    Raba, Karolina
    Wołkanowski, Juliusz
    Rydzanicz, Małgorzata
    Kosińska, Joanna
    Płoski, Rafał
    Aebisher, David
    Pyrkosz, Antoni
    Powiązania:
    https://bibliotekanauki.pl/articles/2040499.pdf
    Data publikacji:
    2021-12-30
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    exome sequencing
    neuropathy
    nephropathy
    Opis:
    Introduction. Charcot Marie Tooth disease (CMT) is currently one of the most commonly diagnosed and commonly hereditary sensorimotor neuropathies. Concluding from the literature, this is the first study describing the case of a patient with CMT disease in the c.217G> C variant of the INF2 gene and focal segmental glomerulosclerosis. Aim. To present a case of a 16-year-old patient suffering from CMT disease in variant c.217G> C of the INF2 gene and focal glomerulosclerosis. Description of the case. The text describes the CMT disease in a patient who underwent the WES / WGS-NGS genetic test and found a mutation within the INF2 gene at the chromosomal position hg38 14: 104701582-G> C, cDNA level c.217 G> C , notation at the p protein level (Gly73Arg). Genotype record according to Human Genome Variation Society: NM_022489.4: c. [217G> C]; [217 =]. The publication includes data on genetics, molecular mechanisms of the disease, diagnostic methods, rehabilitation and surgical treatment. Conclusion. CMT disease is a heterogeneous group of diseases caused by mutations in various genes. The incidence of this pathology has increased significantly in the last century. Currently, there are no treatments available to combat this disease, and symptomatic treatment is the only treatment available.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2021, 4; 341-346
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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