نتایج جستجو برای: electromagnetic field effect

تعداد نتایج: 2379203  

Ehsan Hosseini, Saeed Nafisi Samad Zare

The main goal of this study was to evaluate the possible effect of whole-body magnetic field (MF) exposure on the variations of corticosterone, Free-T3, Free-T4 and malonyl dialdehyde in plasma in 48 adult white New Zealand male rabbits. Animals were divided into six groups namely, C1 (normal diet, not exposed), C2 (normal diet, sham exposed), T1 (normal diet, exposed to electromagnetic field),...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی برق 1384

برآورده کردن امنیت در شبکه های قدرت از مسایلی است که همواره زمینه مطالعاتی بسیاری از محققین بوده است. برقراری سازگاری الکترومغناطیسی در پست های فشار قوی از پارامترهای بسیار مهم امنیت شبکه می باشد با استفاده روز افزون از تجهیزات حساس الکترونیکی در پست ها مشکلاتی در حین کلیدزنی برای این تجهیزات بوجود آمد و گاهاً باعث آسیب دیدن یا بد عمل کردن آن ها شد، از ایترو تحقیقات در زمینه سازگاری الکترومغناطی...

2005
L. H. Ford

The effect of time-varying electromagnetic fields on electron coherence is investigated. A sinusoidal electromagnetic field produces a time varying Aharonov-Bohm phase. In a measurement of the interference pattern which averages over this phase, the effect is a loss of contrast. This is effectively a form of decoherence. We calculate the magnitude of this effect for various electromagnetic fiel...

2008
L. H. Ford

The effect of time-varying electromagnetic fields on electron coherence is investigated. A sinusoidal electromagnetic field produces a time varying Aharonov-Bohm phase. In a measurement of the interference pattern which averages over this phase, the effect is a loss of contrast. This is effectively a form of decoherence. We calculate the magnitude of this effect for various electromagnetic fiel...

Ai, Jafar, Farmani, Ahmad Reza , Mohammad Salehi, Maedeh,

The term "electromagnetic fields" (EMF) is a combination of electric and magnetic fields as a diagnostic method as well as a therapeutic tool with many advantages such as ease of operation and painlessness, very controllable, which today has found wide application in regenerative medicine and also cancer treatment.  In addition to organs such as nerves, hearts, and bones that have an electrica...

In this research, a 3-D mathematical model is developed for simulating electromagnetic continuous removal of inclusions from molten metals. The model includes the computation of electromagnetic force field and fluid flow in the presence of electromagnetic forces. The results of flow field together with electromagnetic force field were further used for calculating the trajectory of inc...

2011
Chen-Ching Ting Chien-Chih Chen

This article presents some new experimental data for study the shielding effect of electromagnetic wave. The frequencies of electromagnetic wave are mainly focused on emission of daily electrical equipments, which are normally called “low frequency electromagnetic waves”. In this work, a water pump with maximum magnetic field intensity of ca. 2300 mG was applied as emission source of the electr...

Journal: :Orthopedics 2012
Fei Luo Tianyong Hou Zehua Zhang Zhao Xie Xuehui Wu Jianzhong Xu

The purpose of this study was to evaluate the effect of different frequencies of pulsed electromagnetic fields on the osteogenic differentiation of human mesenchymal stem cells. Third-generation human mesenchymal stem cells were irradiated with different frequencies of pulsed electromagnetic fields, including 5, 25, 50, 75, 100, and 150 Hz, with a field intensity of 1.1 mT, for 30 minutes per d...

Journal: :iranian biomedical journal 0
شهین احمدیان shahin ahmadian سعید رضایی زارچی saeed rezaei zarchi بهرام بلوری bahram bolouri

the efficacious effects of pulsed electromagnetic field (pemf) under the certain field parameters like frequency and the field intensity have been reported for various tissue and molecules. since collagen is found abundantly in most tissue structures, this research was designed to further investigate the effects of extremely low frequency (elf) pemf on the synthesis of the epidermal collagen. t...

Background: Many studies have shown that electromagnetic field (EMFs) decrease anxiety. In this study we studied the effect of low frequency electromagnet fields on decreasing the induced anxiety by histamine in mice. Methods: 32 male albino mice at the weight of 30gr were classified in 4 groups (n=8), and were injected histamine (5mg/kg) 3 group of them were exposed to electromagnetic field...

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