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...

Thermoacoustics describes energy conversion processes, activated by interaction temperature oscillation, accompanying the pressure oscillation in a sound wave, with solid boundaries. In ordinary experience this interaction of sound and heat cannot be observed, because of the very low temperature differences, but under suitable conditions, it can be emphasized and amplified to create remarkable ...

Abstract In this article we study the plasma motion in transitional layer of a coronal loop randomly driven at one its footpoints thin-tube and thin-boundary-layer (TTTB) approximation. We introduce average square random function with respect to time. This can be considered as oscillation amplitude quantity. Then calculate amplitudes radial azimuthal displacement well perturbation magnetic pres...

introduction lentil (lens culinaris medic) is an important and highly nutritious crop belonging to the family of legumes. lentil is cultivated worldwide but competition with weeds is a problem affecting production and can reduce yield by more than 80%. the study on the separation of impurities in bulk lentils (euphorbia helioscopia weed, wild oat weed and etc.) by a gravity separator has an ext...

We consider electrostatic plasma modes along the open field lines of a rotating neutron star. Goldreich-Julian charge density in general relativity is analyzed for the neutron star with zero inclination. It is found that the charge density is maximum at the polar cap and it remains almost same in certain extended region of the pole. For a steady state Goldreich-Julian charge density we found th...

Equilibrating gravitation by electric forces, microparticles can be confined in the plasma sheath above suitably biased local electrodes. Their position depends on the detailed structure of the plasma sheath and on the charge that the particles acquire in the surrounding plasma, that is by the electron and ion currents towards it. Bias switching experiments reveal how the charge and equilibrium...

we present a detailed analysis of the static tuning characteristics of three section tunable distributed bragg reflector (dbr) laser. the analysis is based on the transfer matrix method (tmm), transmission line and scattering theory. the key feature of the analysis is the use of modified oscillation condition. with the exact oscillation condition, the static tuning characteristics such as thres...

Periodic outbursts are observed in many AGNs and usually explained with a supermassive black hole binary (SMBHB) scenario. However, multiple periods are observed in some AGNs and cannot be explained with it. Here we analyze the periodicity of the radio light curves of AO 0235+164 at multi-frequencies and report the discovery of six QPOs in integer ratio 1:2:3:4:5:6 of QPO frequencies, of which ...

Neutrino flux propagating in a fluctuating plasma is substantially reduced due to the phenomenon of Anderson localization. We show that this effect can be significant for solar neutrinos, thus requiring rethinking of conventional solutions to the solar neutrino puzzle. Various astrophysical and terrestrial netrino experiments are strongly indicating on anomalous reduction of neutrino fluxes con...