نتایج جستجو برای: the sun
تعداد نتایج: 16057414 فیلتر نتایج به سال:
One of the methods for increasing the gain in the photovoltaic systems is using the solar tracker system which during the whole of day, align the solar panels in the proper position with respect to the sun position. In this study, a solar tracker in the form of smart light curtain was designed and prepared. This simple and smart tracker detects the direction of the sun radiation by using three ...
background and objectives: day-shift taxi drivers have a long duration of direct sun exposure. however, the efficiency of this occupational exposure in vitamin d synthesis has not been addressed yet. the aim of this study was to assess the vitamin d status of taxi drivers in tehran, and examine vitamin d status association with some anthropometric and circulating biomarkers. materials and metho...
The Sun encompasses planet Earth, supplies the heat that warms it, and even shakes it. The United Nation’s Intergovernmental Panel on Climate Change (IPCC) assumed that solar influence on Earth’s climate is limited to changes in solar irradiance and adopted the consensus opinion of a hydrogen-filled Sun—the Standard Solar Model (SSM). They did not consider the alternative solar model and instea...
High performance computers are analysed using simple MPI, OpenMP and mixed mode Game of Life codes. Direct comparison between the HPC 3500 and HPC 6500 is used to approximate the operating system overhead present, and it is found that operating system uses up to 5% of the machine’s processing power. Vast performance increases are discovered when using OpenMP on the HPC 6500, which are due to ca...
Background and aim: Saffron possesses a lot of medical applications in traditional medicine. One of its properties is ultraviolet (UV) light absorption. The aim of this study was preparation, determination of properties and investigating sun protevtive effects of nanoliposomes containing saffron extract and safranal, a substance existing in saffron.Methods: Nanoliposomal hydroalcoholic extract ...
objective(s) studies have described immunomedulatory effects of sun exposure and ultraviolet radiation on infectious and neoplastic diseases. here the effect of exposure to low potency radiation of sun on the course of leishmaniasis in mice was studied. materials and methods fifteen balb/c mice were exposed to suberythemogenic doses of sun (mean 180 mj/cm2/day of uvb) 2 months before and 4 mont...
The study of Sun and Mehr motifs and symbols, their continuity and transformation, related religions and myths in all Iranian pre-historic cultural fields and Islamic period especially in the traditional carpet art is an inevitable necessity in order to get more acquainted with the content of the work. With the change of moon-worshipping custom to Sun-worshipping one, the elements and motifs of...
In this paper, we develop a unified theory in analyzing optimal switch box design problems, particularly for the unsolved irregular cases, where different pin counts are allowed on different sides. The results drawn from our system of linear Diophantine equations based formulation turn out to be general. We prove that the divideand-conquer (reduction) design methodology can also be applied to t...
Résumé. La fusion d’informations issues de plusieurs sources cherche à améliorer la prise de décision. La théorie des fonctions de croyance, pour réaliser cette fusion, utilise des règles de combinaison faisant bien souvent l’hypothèse forte de l’indépendance des sources. Cette hypothèse d’indépendance n’est cependant pas formalisée ni vérifiée. Nous proposons dans cet article un apprentissage ...
Introduction In Vitro Models to Study Candida Albicans Biofilms Gu W1, Xu D2 and Sun S*3 1School of Pharmaceutical Sciences, Shandong University, Shandong Province, People’s Republic of China 2Department of Nephrology, Qianfoshan Hospital Affiliated to Shandong University, People’s Republic of China 3Department of Pharmacy, Qianfoshan Hospital Affiliated to Shandong University, Shandong Provinc...
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