نتایج جستجو برای: استاندارد icnirp
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امروزه با توجه پیشرفت تکنولوژی و استفاده از فناوریهای نوین در خصوص استفاده از تلفن همراه، نصب سیستمهای وایمکس ،bts ، امواج رادار، مایکروویو و غیره میزان قرارگیری عموم مردم در معرض امواج الکترومغناطیس امری اجتناب ناپذیر است این امواج برحسب شدت و میزان قرارگیری در مجاورت آن ضمن ایجاد نگرانی ، سلامت شهروندان را با خطر مواجه نموده است این امواج به وسیله خطوط نیرو، سیمهای الکتریکی و تجهیزات الکتری...
A numerical model of a human body with an intramedullary nail in the femur was built to evaluate the effects of the implant on the current density distribution in extremely low frequency electric and magnetic fields. The intramedullary nail was chosen because it is one of the longest high conductive implants used in the human body. As such it is expected to alter the electric and magnetic field...
INTRODUCTION IN THIS document, guidelines are established for the protection of workers moving in static magnetic fields or being exposed to magnetic fields with frequencies below 1 Hz. This includes, but is not limited to workers engaged in activities related to magnetic resonance imaging (MRI). The general principles for the development of ICNIRP guidelines are published elsewhere (ICNIRP 200...
It is to be stressed that compliance with the ICNIRP Guidelines is not sufficient to guarantee safety – i.e. an absence of related health problems since the radiation can exert influences other than those depending primarily on its intensity; in particular, non-thermal influences, allied to certain frequency characteristics of the signals from a Base-station antenna, which slip through the ICNI...
The rapid development of technologies using static magnetic fields particularly in medicine has resulted in an increase in human exposure to very high static magnetic fields. ICNIRP is the internationally recognised body that sets guidelines for protection against adverse health effects of non-ionizing radiation including static magnetic fields. It has recently published guidelines on limiting ...
Wireless power transfer (WPT) systems can be utilized to charge batteries of electrically powered vehicles with a in the order tens kilowatts. The low frequency source currents WPT system emanate magneto-quasistatic fields that induce electric inside body tissues exposed persons. This article compares International Commission on Non-Ionizing Radiation Protection (ICNIRP) recommended 99th percen...
امروزه با توجه پیشرفت تکنولوژی و استفاده از فناوریهای نوین در خصوص استفاده از تلفن همراه، نصب سیستمهای وایمکس ،BTS ، امواج رادار، مایکروویو و غیره میزان قرارگیری عموم مردم در معرض امواج الکترومغناطیس امری اجتناب ناپذیر است این امواج برحسب شدت و میزان قرارگیری در مجاورت آن ضمن ایجاد نگرانی ، سلامت شهروندان را با خطر مواجه نموده است این امواج به وسیله خطوط نیرو، سیمهای الکتریکی و تجهیزات الکتری...
Change in a magnetic field, or similarly, movement in a strong static magnetic field induces electric fields in human tissues, which could potentially cause harmful effects. In this paper, the fields induced by different rotational movements of a head in a strong homogeneous magnetic field are computed numerically. Average field magnitudes near the retinas and inner ears are studied in order to...
The southwest region of the United States is expected to experience an expansion of commercial solar photovoltaic generation facilities over the next 25 years. A solar facility converts direct current generated by the solar panels to three-phase 60-Hz power that is fed to the grid. This conversion involves sequential processing of the direct current through an inverter that produces low-voltage...
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