نتایج جستجو برای: high voltage and high frequency pulsed electromagnetic field

تعداد نتایج: 17249511  

باقری, مولود, صحبت‌زاده, فرشاد, مطلبی, سمانه,

In this work, we investigated generating argon cold plasma jet at atmospheric pressure based on dielectric barrier discharge configuration using three electrical power supplies of sinusoidal, pulsed and saw tooth high voltage shapes at 8 KHZ. At first; we describe the electronic circuit features for generating high voltage (HV) wave forms including saw tooth, sinusoidal and pulsed forms. Then, ...

2015
Chiharu Urano

At NMIJ/AIST, there are two divisions in the electrical standards area. One is the Electricity and Magnetism (EM) Division and the other is the Electromagnetic Waves Division. The former covers low frequency electrical standards and the latter high frequency and electromagnetic field standards. The EM division has two sections, the Applied Electrical Standards Section and the Quantum Electrical...

Journal: :veterinary research forum 2012
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 inplasma 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 toelectromagnetic field), c3 ...

2013
M. S. Ansari M S Bhatia S. V. G. Ravindranath B Singh C. P. Navathe

This paper investigates the near field, far field and conducted electromagnetic emissions in a pulsed power supply circuit for a flash lamp pumped solid-state laser amplifier. The power supply consists of a charging circuit, which energizes 300 μF of energy storage capacitor bank to 3 kV. The stored energy is discharged through a flash lamp in the form of pulsed current. It is a single shot eve...

احمدیان, شهین, بلوری, بهرام, خاوری, بهناز, شفیع زاده, مهشید, پاژنگ, یعقوب,

Background: In the recent decades, there has been an increasing effort to study possible biological effects of extremely low frequency electromagnetic fields (ELF-EMFs). In this study, the effects of 50 Hz, 0.6 mT pulsed electromagnetic field on proliferation and biochemical properties, in a prostate cancer cell line, DU-145, and the simultaneous treatment of these cells with electromagnetic fi...

ژورنال: سلامت و محیط زیست 2012
الماسی, تینوش, رستم‌ پور, معصومه, رستم‌ پور, نیما, عربیان, خاطره, کرمی, احمدرضا,

A MicrosoftInternetExplorer4 Background and Objectives: Biological effects of non-ionizing radiation on the body of living organisms have been studied by researchers in recent years. High Voltage medical equipments are one of the sources generating electromagnetic fields. The electromagnetic field intensity of the medical equ...

احمدیان, شهین, بلوری, بهرام, خاوری, بهناز , شفیع زاده, مهشید , پاژنگ, یعقوب ,

Background: In the recent decades, there has been an increasing effort to study possible biological effects of extremely low frequency electromagnetic fields (ELF-EMFs). In this study, the effects of 50 Hz, 0.6 mT pulsed electromagnetic field on proliferation and biochemical properties, in a prostate cancer cell line, DU-145, and the simultaneous treatment of these cells with electromagnetic fi...

Journal: :iranian journal of basic medical sciences 0
amaneh mohammadi roushandeh anatomical sciences department, medicine faculty, medical university of tabriz, tabriz, iran raheleh halabian research center, iranian blood transfusion organization (ibto), tehran, iran biotechnology department, tarbiyat modares uiversity, tehran, iran jafar soleimani rad anatomical sciences department, medicine faculty, medical university of tabriz, tabriz, iran behnaz sadeghzadeh oskouei anatomical sciences department, medicine faculty, medical university of tabriz, tabriz, iran ahmad mehdipour anatomical sciences department, medicine faculty, medical university of tabriz, tabriz, iran

objective(s) neutrophil gelatinase-associated lipocalin (ngal/lcn2), comprise a group of small extracellular proteins with a common p-sheet-dominated 3-dimensional structure. in the past, it was assumed that the predominant role of lipocalin was acting as transport proteins. recently it has been found that oxidative stress induces lcn2 expression. it has been also proved that electromagnetic fi...

Journal: :Neuroreport 2000
R Huber T Graf K A Cote L Wittmann E Gallmann D Matter J Schuderer N Kuster A A Borbély P Achermann

The aim of the study was to investigate whether the electromagnetic field (EMF) emitted by digital radiotelephone handsets affects brain physiology. Healthy, young male subjects were exposed for 30 min to EMF (900 MHz; spatial peak specific absorption rate 1 W/kg) during the waking period preceding sleep. Compared with the control condition with sham exposure, spectral power of the EEG in non-r...

پایان نامه :0 1392

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...

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