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首页> 外文期刊>International journal of electrical and power engineering >Design, Construction and Application of Effective Electromagnetic Field on Kidney Tissue
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Design, Construction and Application of Effective Electromagnetic Field on Kidney Tissue

机译：肾脏组织有效电磁场的设计，构建和应用

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In late years, many researchers have focused on the effects of Electromagnetic Fields (EMFs) on biological tissues. Although, the effects of EMF on live tissues were shown in many studies but even now there is many questions that are not replied. The aim of the present study, is to design and construct an EMF exposure system which can generate 10-100 Hz, 0.1-2 mT EMFs and then study the effects of 50 Hz, 0.1 mT EMF that was generated by this exposure system on kidney tissue of rats. The exposure system consisted of 4 square coils (Merritt 4 coils), the coils are 30 cm in width. About 2 outer coils were of 850 turns and 2 inner coils were of 360 turns of copper wire with 0.5 mm in diameter. The distance between 2 inner coils was 7.668 cm and the distance between inner coils and outer coils was 11.322 cm. The needed current was applied by a signal generator. In order to amplify the signal generator, a push-pull amplifier was designed and constructed. The field at the center of the coils was probed by a magnetic flux meter. To check the accuracy of the exposure system in generating effective EMFs, the effects of 50 Hz, 0.1 mT EMF on kidney tissue of rats were studied. For this purpose, 12 rats divided into 2 control and exposed groups randomly. Exposed rats (6 rats) were exposed to 0.1 mT, 50 Hz EMF, 6 h a day for 30 days. Control rats (6 rats) were housed in a separate room without exposure to EMF. After all applications, kidney tissue of rats was investigated under light microscope. The designed exposure system could generate variable magnetic flux at the center of coil system which could change from 0.1-2 mT in flux density and 10-100 Hz in frequency. Moreover, the microscopic studies on kidney tissues demonstrated that 0.1 mT, 50 Hz EMF affected kidney tissues and compared with control rats, Bowman?s capsule of exposed rats was altered. These results demonstrated that designed and constructed EMF exposure system could generate EMFs with different flux densities and frequencies. Also, the generated EMF by this exposure system could affect kidney tissue.
机译：近年来，许多研究人员将注意力集中在电磁场（EMF）对生物组织的影响上。虽然，许多研究显示了EMF对活组织的影响，但即使到现在，仍有许多问题没有得到回答。本研究的目的是设计和构建可产生10-100 Hz，0.1-2 mT EMF的EMF暴露系统，然后研究此暴露系统产生的50 Hz，0.1 mT EMF对肾脏的影响大鼠的组织。曝光系统由4个方形线圈（梅里特4个线圈）组成，线圈的宽度为30厘米。大约2个外部线圈为850匝，两个内部线圈为360匝，直径为0.5 mm的铜线。 2个内部线圈之间的距离为7.668厘米，内部线圈与外部线圈之间的距离为11.322厘米。所需的电流由信号发生器施加。为了放大信号发生器，设计并构建了一个推挽放大器。线圈中心的磁场由磁通量计探测。为了检查暴露系统产生有效EMF的准确性，研究了50 Hz，0.1 mT EMF对大鼠肾脏组织的影响。为此，将12只大鼠随机分为2个对照组和暴露组。暴露的大鼠（6只大鼠）每天6小时暴露于0.1 mT，50 Hz EMF中，持续30天。对照大鼠（6只大鼠）被饲养在单独的房间中而不暴露于EMF。在所有应用之后，在光学显微镜下研究大鼠的肾脏组织。设计的曝光系统可以在线圈系统的中心产生可变的磁通量，其磁通量密度可以在0.1-2 mT之间变化，而在频率上可以在10-100 Hz之间变化。此外，对肾脏组织的显微镜研究表明，0.1 mT，50 Hz EMF会影响肾脏组织，与对照组相比，裸露大鼠的鲍曼氏囊有所改变。这些结果表明，设计和建造的EMF曝光系统可以产生具有不同通量密度和频率的EMF。同样，通过该暴露系统生成的EMF可能会影响肾脏组织。

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