نتایج جستجو برای: magnetic field sources

تعداد نتایج: 1302846  

Journal: :iranian journal of science and technology (sciences) 2015
f. ghanati

effect of static magnetic field (smf) on plants is a matter of debate. in the present study plausible useful effects of smf on wheat plant (triticum aestivum l.) via improvement of antioxidant system and iron/ferritin fortification were evaluated. the plants were cultivated in pots and in their reproductive stages were treated with or without a 30 mt smf for 4 days, each 5h. the activity of ant...

Journal: :international journal of nanoscience and nanotechnology 2011
h. mohammadi kamrava m. barati

within the effective-field theory with correlations (eft), a transverse random field spin-1 ising model on the simple cubic (z=6) lattice is studied. the phase diagrams, the behavior of critical points, transverse magnetization,  internal energy, magnetic specific heat are obtained numerically and discussed for different values of p the concentration of the random transverse field.

Hojatollah Shahbazian Jafar Fatahiasl Mansour Zabihzadeh Mohammad Ali Behrooz Mohammad Javad Tahmasebibirgani Nahid Chegeni Reza Maskani

Introduction: Photon contamination is a restriction on treatment with electron that increase dose to healthy tissue below the tumor. The aim of this study is to reduce the photon contamination using a magnet system. Materials and Methods: A mini-applicator equipped with two neodymium boron permanent magnets was designed which make it possible to adjust the d...

F. Soheilian M. Firoozi M. Ghasemloo M. R. Soltani N. Nikdel

In this paper we studied the thermal negativity in a two-qubit XX spin ½ chain model and XXX spin1/2 chain model(isotropic Heisenberg model)spin-1/2 chain subjected to an external magnetic field inz direction. We calculate analytical relation for the thermal negativity for two qubit XX and XXX spinchain models in the external magnetic field. Effects of the magnetic field and temperature on then...

The Ardabil geothermal area is located in the northwest of Iran, which hosts several hot springs. It is situated mostly around the Sabalan Mountain. The Sabalan geothermal area is now under investigation for the geothermal electric power generation. It is characterized by its high thermal gradient and high heat flow. In this study, our aim is to determine the fractal parameter and top and botto...

2010
D Kutaini

The aim of this article is to present the development of the pharmaceutical industry in Syria using national and international public data sources. At the end of the 80ies, the pharmaceutical industry in Syria was very poor, covering 6% of the national needs. In less than 20 years, with the government support in terms of legal frame and strategic political engagement, the Syrian pharmaceutical ...

Journal: :فیزیک زمین و فضا 0
محمد علی احمدی مؤسسه ژئوفیزیک دانشگاه تهران، دانشجوی کارشناسی ارشد وحید ابراهیم زاده اردستانی مؤسسه ژئوفیزیک دانشگاه تهران، دانشیار

in this paper, it has been shown that there is a special relation between horizontal and vertical gradients of gravity data and the vertical and horizontal components of magnetic data for some of 2-d sources. it has been shown that the hilbert transform is useful in calculating the vertical gradient of gravity and magnetic anomalies from the horizontal gradient for transformation of gravity and...

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