نتایج جستجو برای: electromagnetic oscillation
تعداد نتایج: 114330 فیلتر نتایج به سال:
In this study, the efficiencies of seed priming with electromagnetic field (0, 2, 4, and 6 mT; 30 minutes daily for 3 days) were investigated in Salvia nemorosa. The exposure to electromagnetic filed led to significant increases in biomass accumulation (mean=53.6 %). Electromagnetic filed treatments significantly increased K, Ca, Mg, and Fe contents in leaves by mean 39.5 %. The electromagnetic...
The purpose of this study was to investigate the effects of the North Atlantic Oscillation on the middle levels of Atmosphere and precipitation changes in the West of country. To do this, first monthly rainfall data of 17 synoptic stations of the West Country in period of 30 years from 1984 to 2014 of country were collected from Meteorological Organization. As well as North Atlantic Oscillation...
the reaction of ch3o2 radicals with acetaldehyde on the solid surface of nh4no3 has been studied in a flow capillary reactor at low pressure and room temperature. the experiments were performed using epr spectrometer combined with the kinetic method of radicals freezing. peroxy radicals revealed an oscillation complex behavior during the process regarding to the phenomenon of radicals multiplic...
The objective of this paper is to examine the effectiveness of wall oscillation as a control scheme of drag reduction. Two flow configurations are considered: constant flow rate and constant mean pressure gradient. The Navier-Stokes equations are solved using Fourier-Chebyshev spectral methods and the oscillation in sinusoidal form is enforced on the walls through boundary conditions for the sp...
What exactly are photons and dark matter? Modern physical theories do not explain them very well. In this paper, by extending the law of electromagnetic oscillation, space particles their operation can also be obtained. The system particle theory is formed under physics. conclusion quite consistent with many phenomena. There no contradictions that found. According to particles, there an uneven ...
background and objectives: electric, magnetic and electromagnetic fields can act as stress factors with different effects on biological systems. due to the nutritional and medicinal values, and the increasing electromagnetic radiations, the present study was performed to investigate the effects of the electromagnetic field on the developmental stages and cytotoxic properties of okra. methods: b...
background: with increased use of computers, exposure to electric and magnetic fields is increasing, the main objective of this study was to evaluate the electric and magnetic field strength in portable computers (laptops) and its relation with eyestrain users. methods: in this cross – sectional study, magnetic and electric fields in 125 laptop computers were measured from 30 cm and 50 cm dista...
We discuss the possible impact of astrophysical neutrino flux measurements at neutrino telescopes on the neutrino oscillation program of reactor experiments and neutrino beams. We consider neutrino fluxes from neutron sources, muon damped sources, and pion sources, where we parameterize the input from these sources in terms of the flux ratio R = φμ/(φe+ φτ ) which can be extracted from the muon...
Free electromagnetic oscillations in a quasi-optical open resonator, i.e., in a resonator whose basic dimensions are much grater than the operating wavelength λ = 2π/k, are generated by the beams of plane waves propagating in opposite directions between resonator’s mirrors. By moving along the closed paths, the beams recover their phase characteristics when returning at some fixed point thus en...
approved: John F. Wager This thesis focuses on two aspects of transparent electronics, SnO2 transparent thin-film transistors (TTFTs) and transparent circuits. Both depletionand enhancement-mode SnO2 TTFTs are realized. The maximum effective mobility for the depletionand enhancement-mode devices are 2 cmVs and 0.8 cmVs, respectively. A variety of techniques to decrease the carrier concentration...
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