نتایج جستجو برای: diffuse and ground reflected solar irradiation raster maps for given day
تعداد نتایج: 19135740 فیلتر نتایج به سال:
Development and interpretation of morphometric maps are important tools in studies related to neotectonics and geomorphology; Geographic Information Systems (GIS) allows speed and precision to this process, but applied methodology will vary according to available tools and degree of knowledge of each researcher about involved software. A methodology to integrate GIS and statistics in morphometr...
consideration of the current-voltage (i-v) characteristics variations of solar modules with temperature and irradiations variations is basic for maximum power point tracking (mppt). having a simple and accurate mathematical model for the optimize utilization of the solar modules is essential. in this paper, a novel modeling of photovoltaic systems with novel coefficients is proposed for mathema...
Abstract Solar radiation affects occupant comfort and building energy consumption in ways that have received relatively little attention environmental design simulation. Direct, diffuse, reflected irradiation on the body warming effects can be equated to increases mean radiant temperature (MRT) of occupant's surroundings. A simplified occupant-centered model (SolarCal Model, i.e., SC Model) has...
this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...
Various plannings in agriculture, hydrology, architecture and energy largely depend on the correct estimation of the amount of solar radiation. To estimate the solar radiation, most of the previous studies have used Angstrom model, having the values of sunshine hours as it's input, or regression equations through considering the climatic factors and elements affecting the radiation. In this stu...
background: to evaluate the radioprotective potential of punica granatum fruit rind extract (pgre) in mouse testes. materials and methods: adult male mice were divided into four groups. group i was kept without any treatment. group ii was irradiated with 8gy co60 gamma irradiation and group iii was given pgre one hour before irradiation. group iv was fed with pgre at the rate of 10 mg/kg body w...
insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...
Energy yield assessment of photovoltaic systems is inherently non-linear. The calculation chain starts with simulation of solar radiation, where many factors are considered: sun’s position, terrain, properties of the atmosphere and cloudiness to determine the absolute value of global irradiance and the ratio of diffuse and direct components. The ratio of direct and diffuse components influences...
the present paper investigates how far ideologies can be tease out in discourse by examining the employed schemata by two ideologically opposed news media, the bbc and press tv, to report syria crisis during a period of nine months in 2011. by assuming that news is not a valuefree construction of facts and drawing on micro structural approach of schema theory, for the first time in discours...
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