نتایج جستجو برای: availability during the whole year
تعداد نتایج: 16351193 فیلتر نتایج به سال:
the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...
In recent years, due to the fact that non-renewable energies come to an end, renewable energy is expected to provide a significant part of the future needs of Iran. Among these energies, solar energy is a suitable option for a wide range of the country, due to availability, proper radiation intensity, and high sunshine times during the year (about 300 sunny days per year). The purpose of this p...
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
Background: Cerebral metastases from choriocarcinoma are poor prognostic indicator of outcome in both the World Health Organization and FIGO classification systems. Although gestational trophoblastic neoplasia has become the most curable gynecological malignancy, failure rate among “high-risk” patients is still high despite the use of aggressive multidrug regimens. case: A 27 year old woman (G...
The growth responses of mature Norway spruce (Picea abies (L.) Karst.) trees exposed to elevated [CO(2)] (CE; 670-700 ppm) and long-term optimized nutrient availability or elevated air temperature (TE; ±3.9 °C) were studied in situ in northern Sweden in two 3 year field experiments using 12 whole-tree chambers in ca. 40-year-old forest. The first experiment (Exp. I) studied the interactions bet...
background and objective: hypothyroidism is a known consequence of the external beam radiotherapy to the neck encompassing the thyroid gland for over 40 years. the aim of this study was to find out the incidence of hypothyroidism in patients with head and neck cancer treated with radiotherapy, when radiation portals included whole of the thyroid gland. materials and methods: this prospective no...
This study was aimed to consider students value hierarchies. To this aim values of shahed university students was reviewed in a descriptive design. The students attended in 1998_2001 were considered as statistical universe and then separate research were done for considering of value hierarchies of the said students , based on the year of attendance. In other words, the statistical universe...
in this study a heat exchanger is designed for cooling exhaust gas and an experiment is carried out to investigate the effect of exhaust gas recirculation (egr) temperature on destruction of the fuel’s availability due to combustion processes in idi diesel engine cylinder. to serve this aim an exergy analysis is conducted on the engine cylinder which provides all the availability terms by which...
The aim of this study is to estimate the known statistical characteristics of nominal price stickiness in the Iranian economy during the years 1390 to 1399 and at different commodity levels of microdata of consumer price index (including product category, Coicop commodity group, and the whole economy) and thus the stickiness between categories and product groups are also compared. For this purp...
Background and Objective: Hypothyroidism is a known consequence of the external beam radiotherapy to the neck encompassing the thyroid gland for over 40 years. The aim of this study was to find out the incidence of hypothyroidism in patients with head and neck cancer treated with radiotherapy, when radia...
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