نتایج جستجو برای: eextremely low frequency field
تعداد نتایج: 2253190 فیلتر نتایج به سال:
The purpose of this paper is to provide simple analytical homogenization methods for composite materials containing a metallic wire grid. Estimating their effective electrical properties facilitates the numerical simulation structures shielding applications in automotive industry. presented are based on surface impedance approaches and media theory. obtained results show that described grid com...
We have used several non-perturbative Floquet methods to calculate the differential and total cross sections for electron scattering from argon in a CO2 laser field. One method utilizes the mixed-gauge R-matrix technique to calculate the scattering cross section. A diabatic approximation adopted from molecular applications is also applied to this low-frequency limit. Results are compared with t...
The low-frequency 1/f voltage noise of epitaxial La0.7Sr0.3Mn0.92Fe0.08O3 thin films has been studied as a function of temperature (80–300 K) and magnetic field (up to 1500 G). It is found that the noise power spectral density (PSD) shows a peak at T ≈ 238 K which coincides with the peak temperature of the resistivity, and is below the Curie temperature. When a small magnetic field of 1500 G is...
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
Clock management circuits are relatively new FPGA architectural blocks that are critical to solving clock distribution problems associated with high-speed, high-density designs. We outline the use of three FPGA clock managers in a variety of applications, and consider their application to low-power systems which adjust clock rates based on the amount of computation needed. Dynamic clock managem...
Background: There are few epidemiological reports on adherence to physical activity (PA) and screen-time (ST) recommendations among Iranian children and adolescents at the provincial level. We used nationally representative data to provide recent prevalence estimates of Iranian children who met the recommendations for PA and ST. Methods: This nationwide study was conducted among 14,88...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
objective: much attention is paid to angiogenesis due to its mutual role in health and disease. therefore, the effect of various chemical and physical agents on inhibition of this process has been recently studied. this study was conducted to investigate the synergic effect of glycyrrhizic acid and electromagnetic field on angiogenesis. materials and methods: in this experimental study, 44 ross...
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