On the Resonant Character of a Nuclear Conversion Transition and the Possibility of Its Resonant Stimulation

2019 ◽  
Vol 83 (9) ◽  
pp. 1144-1148
Author(s):  
V. V. Koltsov
2010 ◽  
Vol 24 (13) ◽  
pp. 1449-1452
Author(s):  
ZHI-WEI GUO ◽  
DE-JUN SUN

The resonance phenomenon for nonmodal perturbation of Batchelor vortex is studied. For azimuthal wavenumber n = - 1, two resonant peaks appear and the left one is always dominant. For n = 1, the resonant character becomes very complicated. There is a resonant mode switch from right peak to left peak as swirl parameter q increases from 2 to infinity. The resonant wavenumber k is the largest when q approaches to infinity for n = - 1 while it is the smallest for n = 1. The maximum value of the optimal energy growth for n = 1 is at q approaches to infinity, whereas it decreases monotonically as q increases for n = - 1. The resonance for n = - 1 is the more important one.


Author(s):  
З.И. Годизова ◽  
Д.В. Габисова

Актуальность предпринятого исследования обусловлена тем, что причастие в современном осетинском языке не привлекало активного внимания ученых, имеются лишь общие описания причастий, а специальные исследования, посвященные причастиям, практически отсутствуют. Представляется интересным и актуальным сравнение системы причастий и их грамматических особенностей в осетинском и русском языках. Этот интерес обусловлен принадлежностью сопоставляемых языков к общей индоевропейской семье языков, а также тесным их взаимодействием в условиях двуязычия, что, очевидно, может отразиться и на системе причастий. Научная новизна данной статьи заключается в том, что в ней исследуются грамматические особенности всех разрядов причастий в осетинском языке в сопоставлении с русским языком. На основании проведенного анализа установлено, что в современном осетинском языке система причастий включает пять разрядов, разнообразных в своих грамматических проявлениях, в степени регулярности, в склонности переходить в состав других частей речи. Выявлены наиболее значительные отличия осетинских причастий от русских: существование причастий будущего времени в системе осетинского языка, отсутствие у причастий показателей времени и залога, а также именных грамматических категорий (падежа, числа, рода). Установлено также, что в осетинском языке категория вида в большей степени управляет категорией времени, в силу чего несовершенный вид причастий предполагает только настоящее время, а совершенный только прошедшее отсутствует четкая залоговая оппозиция причастий в осетинском языке. Определено также, что осетинские причастия не имеют членных (полных) форм, но функционируют в роли и сказуемого, и определения, хотя в большей степени тяготеют к предикативной роли. В осетинском языке причастия гораздо менее употребительны сравнительно с причастиями в русском языке и чаще вступают в отношения грамматической омонимии с другими частями речи. The relevance of the undertaken study is determined by the fact that participles in the modern Ossetian language are still insufficiently studied. There are only the most general descriptions of grammar features of participles. The comparison of the system of participles and their grammar features seems interesting and actual, especially considering the fact that the Ossetian and Russian languages belong to different groups of the Indo-European language family. Furthermore, in the context of bilingualism the Russian and Ossetian languages interact actively and that can affect the system of participles. The scientific novelty of the article is determined by the fact that it examines the grammatical features of all categories of participles in the Ossetian language in comparison with the Russian language. The conducted research allowed to elicit five categories in the system of participles in the modern Ossetian language. The analysis of the results showed the participles are diverse in their grammatical characteristics, in the degree of regularity, and in the tendency to transition into other parts of speech. The research defined the most significant differences between Ossetian and Russian participles: existence of future participles in the system of the Ossetian language absence of adjectival grammar categories of gender, number and case as well as formal markers of tense and voice in Ossetian participles. The tense category in Ossetian subordinates to the aspect category to a far greater extent therefore the imperfective aspect of participles accepts the present tense forms only, while perfective acts in the past tense forms Ossetian participles lack explicit voice opposition. Ossetian participles do not have full forms, but they can have syntactic functions of both the predicate and the attribute in a sentence, although the predicative function is more typical for them. Participles in the Ossetian language are much less common compared to participles in Russian and are more disposed to conversion (transition to the category of nouns, verbal adverbs, adjectives, words of the state category).


Author(s):  
А.Р. Сафин ◽  
Е.Е. Козлова ◽  
Д.В. Калябин ◽  
С.А. Никитов

We investigate a mathematical model of a terahertz electromagnetic wave detector based on a conducting antiferromagnet and a heavy metal. The mechanism of resonant straightening of oscillations is based on the inverse spin Hall effect in a heavy metal under spin pumping from an antiferromagnet. It is shown that the frequency dependence of the constant voltage of the detector has a resonant character with a peak corresponding to the frequency of antiferromagnetic resonance. The sensitivity to an alternating terahertz signal of the proposed detector structure is comparable to the sensitivity of modern detectors based on Schottky and Gunn diodes.


2018 ◽  
Vol 22 (1) ◽  
pp. 15-28 ◽  
Author(s):  
Aleksander Cherenkov ◽  
Taras Hutsol ◽  
Igor Garasymchuk ◽  
Jurii Pancyr ◽  
Dmytro Terenov ◽  
...  

AbstractElectromagnetic energy can alter metabolic and biosynthetic processes and under certain parameters of pulsed EMF it can change pulse repetition frequency, operation cycle, power, exposure, as well as it can slow down and inhibit cell growth. MW irradiation range of RNA and DNA – containing virus reduces their infectivity. Inhibition of bacterial cultures growth, changes in phagocytic activity of protein biosynthesis, ultrastructural changes in the cells when exposed to EMF EHF. It was found in experiments with micro-organisms that biological effects of EMF on microorganisms wore a resonant character. One of the basic mechanisms of inhibitory action of EHF radiation on harmful microorganisms is the role of membranes in biological reactions of microorganisms on the EMR.


1985 ◽  
Vol 46 ◽  
Author(s):  
Georges Bremond ◽  
G. Guillot ◽  
A. Nouailhat ◽  
G. Picoli

AbstractWe have analyzed the photoionization of Cr2+ in InP by the Deep Level Optical Spectroscopy (D.L.O.S.). The σ°n cross section exhibits both a resonant and non resonant character. The former corresponds to the internal transition 5T2-5E of Cr2+ while the threshold of the second allows us to locate the Cr2+/Cr3+ level below the conduction band. The absolute photoionization cross sections towards the two bands are very similar. In particular no selection rule seems to work.


2015 ◽  
Vol 1084 ◽  
pp. 152-157
Author(s):  
Yuriy Lutsenko ◽  
Ivan Miskun ◽  
Ekaterina Zelenetskaya

The measurements of the amplitude-frequency characteristics were done for the high-frequency torch discharge burning in argon. The resonant character of the electric field fourth harmonic attenuation was found. The axial harmonics distribution measurements of the electric field were done for the torch discharge burning in argon-air mixture. The electron concentration in the investigated plasma discharge was evaluated. The selective influence of the change in the electron concentration on the propagation process of the fourth harmonic of the electric field was found.


2018 ◽  
Vol 2 (1) ◽  

The one particle states of charge carriers are considered in InP/InSb/InPcore/shell/shell spherical quantum nano structure at the regime of strong quantization. The results of numerical calculations for the values of the energy of charge carriers for different values of the thickness of the quantizing layer of InSb are presented. The calculations were performed with allowance for the Kaned is persion for electrons and light holes in the InSb layer. The dependence of the number and position of the energy levels of charge carriers in the quantizing layer of InSb on the width of the well (layer thickness) is shown. The dependence of the absorption coefficient and photoluminescence spectra on the energy of incident light of interband transitions have been investigated. The oscillator strengths and selection rules for these transitions have been obtained. The absorption has a strictly resonant character. By the orbital and azimuthal numbers only diagonal inter band transitions are possible. For the radial number, the transitions between the states with the same radial numbers have the highest intensity


1998 ◽  
Vol 13 (32) ◽  
pp. 2593-2600 ◽  
Author(s):  
N. V. MIKHEEV ◽  
A. YA. PARKHOMENKO ◽  
L. A. VASSILEVSKAYA

The annihilation into axion e+e-→a is investigated in a plasma and an external magnetic field. This process via a plasmon intermediate state has a resonant character at a particular energy of the emitted axion. The emissivity by e+e-→a is compared with the axion cyclotron emissivity.


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