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Search Results: 1 - 10 of 279516 matches for " L. I. Belykh "
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The biological potency of benzapyrene in the humates composition  [PDF]
L. I. Belykh, I. A. Ryabchikova, S. S. Timofeyeva
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412085
Abstract:

The aim of the paper was to determine benz(a)-pyrene in the preparations containing humates and study the benz(a)pyrene biological potency for the agricultural plants. The research methodology included the determination of the dependencies in the system “substance concentration (dose)effect on the plant”. Concentrations of benz(a)pyrene in 12 samples of the humates preparations and fertilizers based on their trademarks “Irkutsk humates”, obtained from brown coal, varied in the range from 0.3 to 50 mcg/kg, which creates no soil contamination in conditions of the use of preparations. Between contents of benz(a)pyrene and humates there is a correlation (rxy = 0.95; α = 0.05). It is ascertained that the effects of stimulation and/or inhibition of the growth and yield of agricultural plants depend on the concentration of benz(a)pyrene and the method of plant processing. Optimal concentrations of benz(a)pyrene were 150-200 ng/dm3 for preplant way of processing of potato tubers, 3-10 ng/dm3for top dressing (spraying) and 0.1-0.3 ng/dm3for dressing under the roots (hydroponic). The obtained results allowed us to offer one of the possible mechanisms of biological potency of humates as the plant growth stimulants, and also a way testing of the preparations by screening of their benz(a)pyrene content.

WAYS OF INCREASE OF EFFICIENCY OF BUSINESS STRUCTURES OF ROAD-BUILDING COMPLEX Пути повышения эффективности предпринимательских структур дорожно-строительного комплекса
Belykh V. I.,Belykh I. V.
Polythematic Online Scientific Journal of Kuban State Agrarian University , 2012,
Abstract: In the article, the problems of development of road network, the ways of their solution at the expense of development of entrepreneurship in the road construction industry are considered
COMPETITIVE POTENTIAL OF BUSINESS STRUCTURES IN ROAD-BUILDING COMPLEX Конкурентный потенциал предпринимательских структур дорожно-строительного комплекса
Belykh V. I.,Belykh I. V.
Polythematic Online Scientific Journal of Kuban State Agrarian University , 2012,
Abstract: The article considers the elements of competitive capacity of enterprise structures of a road-building complex, their community, features and interrelation
FACTORS OF ACHIEVING COMPETITIVE ADVANTAGES OF BUSINESS STRUCTURES OF A ROAD-BUILDING COMPLEX Факторы достижения конкурентных преимуществ предпринимательских структур дорожно-строительного комплекса
Belykh I. V.
Polythematic Online Scientific Journal of Kuban State Agrarian University , 2013,
Abstract: The article considers the factors of the formation of competitive advantages due to the use of the asphalt mixture of multi-component mineral powder. On the basis of the completed studies, we have picked up the best composition of the mineral powder for asphalt concrete mix
MOTIVATION OF LABOR AND ENTREPRENEURIAL ACTIVITY Мотивация трудовой и предпринимательской деятельности
Belykh V. I.,Polkovnikova S. G.
Polythematic Online Scientific Journal of Kuban State Agrarian University , 2012,
Abstract: The article considers the evolution of the business and competitive motivation of entrepreneurial structures in business. The classification of the motives of labor and competitive activities, marked by the features of the analyzed motives is given
Nonlinear emission dynamics of a GaAs microcavity with embedded quantum wells
V. V. Belykh,V. A. Tsvetkov,M. L. Skorikov,N. N. Sibeldin
Physics , 2011, DOI: 10.1088/0953-8984/23/21/215302
Abstract: The emission dynamics of a GaAs microcavity at different angles of observation with respect to the sample normal under conditions of nonresonant picosecond-pulse excitation is measured. At sufficiently high excitation densities, the decay time of the lower-polariton emission increases with the polariton wavevector; at low excitation densities the decay time is independent of the wavevector. The effect of additional nonresonant continuous illumination on the emission originating from the bottom of the lower polariton branch is investigated. The additional illumination leads to a substantial increase in the emission intensity (considerably larger than the intensity of the photoluminescence excited by this illumination alone). This fact is explained in terms of acceleration of the polariton relaxation to the radiative states due to scattering by charge carriers created by the additional illumination. The results obtained show, that at large negative detunings between the photon and exciton modes, polariton-polariton and polariton-free carrier scattering are the main processes responsible for the filling of states near the bottom of the lower polariton branch.
Polariton linewidth and the reservoir temperature dynamics in a semiconductor microcavity
V. V. Belykh,D. N. Sob'yanin
Physics , 2014, DOI: 10.1103/PhysRevB.89.245312
Abstract: A method of determining the temperature of the nonradiative reservoir in a microcavity exciton-polariton system is developed. A general relation for the homogeneous polariton linewidth is theoretically derived and experimentally used in the method. In experiments with a GaAs microcavity under nonresonant pulsed excitation, the reservoir temperature dynamics is extracted from the polariton linewidth. Within the first nanosecond the reservoir temperature greatly exceeds the lattice temperature and determines the dynamics of the major processes in the system. It is shown that, for nonresonant pulsed excitation of GaAs microcavities, the polariton Bose-Einstein condensation is typically governed by polariton-phonon scattering, while interparticle scattering leads to condensate depopulation.
Heating by exciton and biexciton recombination in GaAs/AlGaAs quantum wells
V. V. Belykh,M. V. Kochiev
Physics , 2015, DOI: 10.1103/PhysRevB.92.045307
Abstract: A comprehensive experimental investigation of exciton and biexciton recombination in GaAs/AlGaAs quantum wells is presented. Exciton and biexciton recombination times are found to be 16 and 55 ps, respectively. A method of determining the dynamics of the exciton temperature is developed. It is shown that both exciton and biexciton recombination processes increase the exciton temperature by an amount as high as $\sim 10$ K. These processes impose a new restriction on the possibility of exciton Bose-Einstein condensation and make impossible its achievement in a system of direct excitons in GaAs quantum wells even for resonantly excited exciton gas.
Spontaneous Emergence of Physical Structures and Observable Formations: Fluctuations, Waves, Turbulent Pulsations and So on  [PDF]
L. I. Petrova
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.45094
Abstract: As it is known, the closed inexact exterior form and associated closed dual form make up a differential-geometrical structure. Such a differential-geometrical structure describes a physical structure, namely, a pseudostructure on which conservation laws are fulfilled (A closed dual form describes a pseudostructure. And a closed exterior form, as it is known, describes a conservative quantity, since the differential of closed form is equal to zero). It has been shown that closed inexact exterior forms, which describe physical structures, are obtained from the equations of mathematical physics. This process proceeds spontaneously under realization of any degrees of freedom of the material medium described. Such a process describes an emergence of physical structures and this is accompanied by an appearance of observed formations such as fluctuations, waves, turbulent pulsations and so on.
Connection between the Principles of Thermodynamics and the Conservation Laws: Physical Meaning of the Principles of Thermodynamics  [PDF]
L. I. Petrova
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.612223
Abstract: It has been shown that the first principle of thermodynamics follows from the conservation laws for energy and linear momentum. And the second principle of thermodynamics follows from the first principle of thermodynamics under realization of the integrating factor (namely, temperature) and is a conservation law. The significance of the first principle of thermodynamics consists in the fact that it specifies the thermodynamic system state, which depends on interaction between conservation laws and is non-equilibrium due to a non-commutativity of conservation laws. The realization of the second principle of thermodynamics points to a transition of the thermodynamic system state into a locally-equilibrium state. Phase transitions are examples of such transitions.
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