نتایج جستجو برای: electromagnetic field effect
تعداد نتایج: 2379203 فیلتر نتایج به سال:
با پیشرفت تکنولوژی و افزایش فرکانس و کاهش ابعاد در بردهای الکترونیکی، تاثیرگذاری و تاثیرپذیری خطوط انتقال درون برد بر هم افزایش یافته است. برای اطلاع از میزان این تاثیر نیاز به محاسبه همشنوایی بین خطوط جدی می شود. همچنین برای اطلاع یافتن از اینکه برد حاصل استانداردهای emc را بر آورده می کند، باید میزان ولتاژ و جریان القایی در انتهای خطوط هنگامی که این برددر حضور میدان الکترومغناطیس خارجی قرار گ...
introduction: the aim of the present study is to investigate the effect of interaperitoneal injection of baclofen (gaba-b agonist) and cgp35348 (gaba-b antagonist) on serum testosterone concentration in aggressive rats exposed to electromagnetic field. methods: fifty five mature male rats weighing 200±20 grams were studied. animals were divided into 2 main groups and four subgroups. main groups...
Electromagnetic field is a stress factor which can interfere with the functions of body organs. This study aims to evaluate the protective impact of the aqua extract of Persian Gulf sea cucumber on damages induced by low frequency electromagnetic field in male gonads of Balb/C mice. Mice were divided into control, sham-exposed and 5 experimental groups. The experimental groups were then exposed...
Introduction: Access to modern methods for increasing the percentage of in vitro human and animal mature oocytes can be useful in the treatment of some forms of human infertility as well as proliferation of many domestic and wild animals which generation is endangered. Effect of low- frequency electromagnetic fields on in vitro growth and maturation of mouse oocytes is recently considered as a ...
this paper presents an approach to modeling of field penetration and gives contribution to understanding the real effects of the fields and the sensitivity of human model to electromagnetic radiation generated by mobile antenna. when a human body is exposed to the electromagnetic radiation, because human body contain 70% of liquid, and it contain more liquid near of head, heart, abdomen (near o...
In order to investigate the effect of an electromagnetic field and ultrasonic waves on the seed germination of Cuminum cyminum that two separate experiments using a completely randomized design with four replications was conducted at Seed Science and Technology Laboratory of Faculty Agricultural Sciences, the Shahed University of Tehran in 2012. In the first experiment, for the seeds of zero, 1...
چکیده ندارد.
Background and aim: statins promote the proliferation and survival of endothelial cells. Angiogenesis is the formation of new blood vessels from pre-existing ones.It contributes to physiological and pathophysiological condition. In this research we used atorvastatin (0/1m) and (10m) with electromagnetic field on angiogenesis of chick embryo. Method: in this experiment study 98 Ross fertilized...
Background & Aims : Breast cancer is the most common cancer in women. The aim of this study was to investigate the effects of electromagnetic field on MCF-7 cancer cell line . Materials & Methods : MCF-7 cell lines and L929 cell line were cultured in RPMI medium that contain fetal bovine serum and antibiotics . Cells for three hours were exposed to 50 Hz electromagnetic field with intensi...
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