نتایج جستجو برای: electromagnetic waves

تعداد نتایج: 181493  

Introduction: Today concerns about the somatic and mental-emotional effects of exposure to electromagnetic waves have been raised. Although early thermal effects can not be attributed to these waves, It is necessary to investigate the long-term and side effects of these waves. One of the devices that has the most connection with electromagnetic waves is cell phones. In the pres...

ژورنال: ژئوفیزیک ایران 2015
Mohammad Javad Kalaee

Electromagnetic waves with different modes, such as Z-, whistler-, LO- and RX- modes are found in different regions of the Earth magnetosphere and the magnetosphere of other planets. Since whistler-mode waves influence the behavior of the magnetosphere, and they are used as experimental tools to investigate the upper atmosphere, they are important. On the other hand, the mode conversion process...

Journal: :iranian journal of medical physics 0
fatemeh zakieh tohidi medical physics dept., faculty of medicine, zahedan university of medical sciences, zahedan, iran reza fardid radiology dept., faculty of paramedical sciences, shiraz university of medical sciences, shiraz, iran somayeh arian rad osmania university- hyderabad, india mohadeseh tohidi physics dept., payame noor university of mashhad, mashhad, iran mohammad hosein bahrayni toosi medical physics dept., faculty of medicine, mashhad university of medical sciences, mashhad, iran tayebeh kianosh biochemistry dept., faculty of medicine, mashhad university of medical sciences, mashhad, iran

introduction the continuous and rapid growth of telecommunication industries, along with the common application of cell phones, hasraised debates on the associated risks for humanhealth due to exposure to radiofrequency fields, caused bycell phonesorother sources, and industrial and medical applications. accordingly, in this study, we aimed to investigate the effects of cell phone radiation on ...

2008
Martin Servin Gert Brodin

In magnetized plasmas gravitational and electromagnetic waves may interact coherently and exchange energy between themselves and with plasma flows. We derive the wave interaction equations for these processes in the case of waves propagating perpendicular respectively parallel with the plasma background magnetic field. In the latter case, the electromagnetic waves are taken to be circularly pol...

Journal: :Computers & Mathematics with Applications 1990

Journal: :Journal of Engineering Materials and Technology 1987

Journal: :Modern Physics Letters A 2013

2005
E. G. Evstatiev P. J. Morrison

A nonlinear multiwave model that describes the interaction of an electron beam, plasma waves, and electromagnetic waves in a cold plasma is derived and studied. The derivation, which is based on slow amplitude and phase change approximations, begins with the electromagnetic Lagrangian coupled to an electron beam, a background plasma, and electrostatic and electromagnetic waves. The model obtain...

Journal: :journal of paramedical sciences 0
seyed mohammad mahdavi department of biology, science and research branch, islamic azad university, tehran, iran. mostafa rezaei-tavirani proteomics research center ,shahid beheshti university of medical sciences, tehran, iran. abdolrahim nikzamir faculty of medicine, shahid beheshti university of medical sciences, tehran, iran. abdolreza ardeshirylajimi department of stem cell biology, stem cell technology research center, tehran, iran.

due to the increasing presence of electromagnetic radiation in advanced societies, investigation of the effects of this radiation on humans has attracted the interest of many researchers. the non- ionizing radiation can induce numerous effects through biomolecules in the tissue and cells. in the current study, effects of 12 hz electromagnetic waves investigated on neuronal hormone levels in rat...

ژورنال: ژئوفیزیک ایران 2015
Mohammad Javad Kalaee Yuto Katoh

The generation mechanism of RX-mode waves in the equatorial plasmasphere has not been well understood. The Akebono passing through the storm time geomagnetic equator shows the possibility of the local enhancement of RX-mode waves in association with intense Z-mode waves in the equatorial region. We use the initial parameters inferred from observational data from around the plasma-wave generatio...

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