نتایج جستجو برای: sun
تعداد نتایج: 34548 فیلتر نتایج به سال:
این تحقیق به منظور اندازه گیری سطوح نیتروژن اورة خون (sun) و شیر (mun) در گاوهای شیری و بررسی ارتباط بین آنها با میزان آبستنی انجام گرفت. نمونه های خون و شیر 80 رأس از گاوهای شیرده یک گاوداری صنعتی در روز تلقیح جمع آوری شدند. تشخیص آبستنی 45 روز پس از تلقیح انجام گرفت و گاوها به دو گروه گاوهای آبستن و غیرآبستن تقسیم شدند. همچنین گاوها در هر یک از گروه های آبستن و غیرآبستن بر اساس تولید شیر (کمت...
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 Meth...
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 ...
Precipitable Water Vapor (PWV) is one of the most important quantities in meteorology and climate studies. PWV in Earth's atmosphere can be measured by Sun-photometer, the Atmospheric Infrared Sounder (AIRS), and radiosonde from surface, atmosphere and space-based systems, respectively. In this paper, we use PWV measured by Sun-photometer located in Institute for Advanced Studies in Basic Scien...
RFC 1831 [Srinivasan 1995a] describes Sun RPC which was designed for client-server communication in the Sun NFS network file system. Sun RPC is sometimes called ONC (Open Network Computing) RPC. Sun RPC is supplied as a part of the various Sun UNIX operating systems and is also available with other NFS installations. Implementers have the choice of using remote procedure calls over either UDP/I...
In early spring, red wood ants Formica polyctena are often observed clustering on the nest surface in large numbers basking in the sun. It has been hypothesized that sun-basking behaviour may contribute to nest heating because of both heat carriage into the nest by sun-basking workers, and catabolic heat production from the mobilization of the workers' lipid reserves. We investigated sun-baskin...
Background: Skin cancers are the most prevalent malignancies in Iran and sun protection behaviors are the most effective intervention to prevent it. In this study we assess prevalence of sun protective behaviors and related factors, in married women of Yazd city (the center of Yazd province). Materials and Methods: In this cross- sectional study, Health Belief Model (HBM) was used in order to ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید