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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Физика и энергетика
  • 211. Intrinsic ferromagnetic behavior in Fe-doped Cu2O octahedra due to cation vacancy defects

    Semiconductor nanomaterials - very useful in various types of applications as electronic and optical properties. The features of ferromagnetism in copper oxide material without magnetic impurities due to defects created by the deficit of cations.

    статья (573,6 K)
  • 212. Introduction to the analysis of the bifurcation phenomena in an optical waveguide with statistic irregularities

    A method of a research of irregular multimode optical waveguides as nonlinear dynamic dissipative systems. The scattering of a controlled mode as a process of transition of a certain dynamic dissipative system from an "ordered" state to a "chaos" state.

    статья (258,8 K)
  • 213. Invalidation of the Kelvin Force in Ferrofluids

    Direct and unambiguous experimental evidence for the magnetic force density. Schematic representation of the experiment, a pen-dulum deflected by a magnetic force. Magnetization of a typical ferrofluid. The table of data of the employed ferrofluids.

    статья (237,4 K)
  • 214. Investigation jf two slag samples using k0 neutron activation analysis through different standardization methods

    The studying of the accuracy and precision of internal comparator k0 and external comparator k0 methods in industrial application. Instrumental neutron activation analysis and determination of concentrations of major elements in two slag samples.

    статья (293,8 K)
  • 215. Investigation of aerodynamic performance on low-aspect-ratio wings at low Reynolds numbers

    The aerodynamic properties of the wing (drag, lift-to-drag ratio and induced drag) were investigated experimentally. Two forms of nonlinear equations of lift curves. Flow visualization in observing the influences of tip vortices shed from the wing tips.

    статья (417,0 K)
  • 216. Investigation of functionals of neutron flux influencing onto VVER-440 reactor pressure vessel

    Terms irradiation reactor VVER-440 in the presence and absence of cassettes screens at the periphery of the core. Distributions of functionals of the neutron flux on the inner surface and in the bulk metal reactor fuel in different variants of downloads.

    статья (224,6 K)
  • 217. Investigation of some features of the movement of surface waves and their interaction with the surface objects´ bases and foundations providing seismic safety

    The features of surface waves motion and the analysis of methods for finding the timing and patterns of change in motion R-waves along the free surface. The calculate time - frequency performance under different formulas and compared with each other.

    статья (516,9 K)
  • 218. Investigation of the scattering gross sections of neutrons on carbon nuclei at the reactor filtered beams

    Analysis of carbon, which is the structure of the reactor and the factor of neutron scattering at energies up to 2 MeV. Its status in the energy range 1-60 KEV. Essay experimental data used to measure the neutron cross sections using the detector.

    статья (403,5 K)
  • 219. Ion transport into plant cells by a magnetic field

    The effect of magnetic field on the transport of ions in plant cells are shown in the article. The interrelation between the changes in the concentration of ions in the plant cell with magnetic treatment and magnetic field parameters has been established.

    статья (213,9 K)
  • 220. Iмовiрнiстно-феноменологiчний пiдхiд у статистичнiй фізиці фрактально неупорядкованих конденсованих середовищ

    Формалізм рівноважної статистичної фізики неупорядкованих конденсованих середовищ, що з геометричної точки зору являються стохастичними фракталами. Статистична механіка флуктуацій фізичних полів на структурах. Оцінка гіббсівських розподілів ймовірностей.

    автореферат (99,4 K)
  • 221. K-структура рідких одноатомних спиртів з даних коливальної спектроскопії

    Квантово-хімічне моделювання молекулярних кластерів, що утворюють структуру рідкого метанолу та розрахунок відповідних коливальних спектрів. Особливості контурів коливальних смуг в широкому температурному діапазоні за різних умов зміни температури.

    автореферат (33,8 K)
  • 222. Kinetics of the Active Nanoparticles

    Studying the behavior of active nanoparticles ensemble within the framework of canonical approach, taking into account the internal energy. Applying the anharmonic representation of the Hamilton function and analysis the kinetics of the self-assembly.

    статья (400,1 K)
  • 223. Laser Beams and Resonators: The 1960s

    Study of the history of origin of the basic concepts of optical resonators and lensguides, development of new concepts and still further knowledge in this area in the first decade of the laser era. The technical aspects of optical beams and resonators.

    статья (163,7 K)
  • 224. Laser beams and their effect on biological skin tissue

    Laser as a distinctive type of optical light with special characteristics that combine wavelength, direction and similarity. The use of the laser as the most effective type of physical effect in medicine, especially in the treatment of skin lesions.

    статья (21,1 K)
  • 225. Laser-induced process of defrosting in biological tissues after impregnation by nanoparticles with abnormal high photothermal effect

    Photothermal effect of laser radiation on frozen biotissues. Тissue cryopreservation with using cooling, frizzing, laser heating. Тhe self-propagating high temperature synthesis. Using of nanoparticles high photo-thermal effect for laser of biotissues.

    статья (1,2 M)
  • 226. Lead Chalcogenide IR-Emitters and Detectors on Si-Substrates

    The review for different devices: Infrared sensor arrays for thermal imaging on active Si read-out chips, resonant cavity enhanced IR detectors, quantum well lasers on Si substrates and "wavelength transformers", structures operated in sub-threshold.

    статья (173,7 K)
  • 227. Levitation of conductors in an oscillating magnetic field

    The phase shift how a result of the self-inductance of the current loops within the conductor. Levitation of conductors in an oscillating magnetic field. The studying phenomenon the self-inductance of an aluminum ring from measuring the vertical force.

    лабораторная работа (510,4 K)
  • 228. Levitation of conductors in an oscillating magnetic field

    A transit time of light through the system. The magnetic field oscillations. The studying a Faraday’s law. The resistance of an electric wires and contacts. Levitation of conductors in an oscillating field. Methods for choosing the discrete differences.

    лабораторная работа (1,3 M)
  • 229. Liquid-liquid polymorphous transition vs. micelle formation of surfactants

    Description of the concept of formation of micelles of surface-active substances. Features smooth polymorphic transitions, oscillations, and hysteresis properties in the size of the micelles. The use of active substances in the development of technology.

    статья (193,2 K)
  • 230. Local heat transfer coefficient during boiling solution isobutane/mineral oil in the pipe

    Influence of oil impurities on the characteristics of isobutane boiling process in the evaporator complex setup. Dependence of oil concentration before throttling versus mass flow rate, of the local heat transfer coefficient from concentration of oil.

    статья (595,4 K)
  • 231. Log periodic bow-tie antennas (LPA) design using the transmission line model

    A transmission line model is used to design log periodic of bow-tie antennas arrays operating in C band fed in series with enhanced bandwidth. The transmission line model is simple, precise and allowing taking into account the whole geometrical, electric.

    статья (1,8 M)
  • 232. Longitudinal Force on a Moving Potential

    A formal result of the longitudinal force acting on a moving potential. The equivalence between the adiabatic perturbation theory and the kinetic theory for the longitudinal force in the dilute gas limit. The longitudinal force. Long-ranged potentials.

    статья (89,3 K)
  • 233. Lorentz transformations in mathematical physics

    The use of Lorentz transformations in solving some problems of mathematical physics. The solution to the string oscillation equation, which is a special case of the wave equation. Consideration of the effect of relativistic compression of the spectrum.

    статья (91,4 K)
  • 234. Low altitude refraction correction

    The most practical table for use with low altitude observations. The speed of light. The absolute index of refraction of a substance. The computing astronomical refraction. F corrective factor for variation in air density. Refrection correction table.

    статья (647,2 K)
  • 235. Magnetooptical Properties of Film Systems Based on Ferromagnetic Materials

    The results of experimental studies of the magnetooptical Kerr effect of thin-film systems based on Niand V. Dimensional and temperature dependencies of the Kerr effect are shown, as well change of MOKE-loop shape at different annealing temperatures.

    статья (631,2 K)
  • 236. Mathematical model of nanostructured processing based on parts of nonlinear dissipative oscillator

    Model of nanostructured finishing and improving surface treatment of machine parts based on nonlinear dissipative oscillator, allowing to define the bifurcation parameters of frictional force and speed of loading of the material of the surface layer.

    статья (280,1 K)
  • 237. Mathematical model of the process of synthesis of biogas from blue-green algae

    The production of biogas from algae. The Optimization the synthesis process of biogas using the results of the mathematical models of stimulation of this process. The scheme of the reactor for processing suspension of cyanobacteria with ultrasound.

    статья (549,9 K)
  • 238. Mathematical modeling of the processes in the geothermal circulation system with hot water injection into an oil-saturated reservoir

    Mathematical modeling as an effective tool for solving very complex tasks of estimating heat reserves, choosing rational exploration schemes. Principles of design and optimization of geothermal field development systems and use in this modeling process.

    статья (310,6 K)
  • 239. Mathematical simulation of electromagnetic wave propagation in inhomogeneous lines

    The propagation of electromagnetic waves in inhomogeneous isotropic lines in the presence of expofunctional influences. Differential equations like the wave equation relative to the unknown electromagnetic field intensities, criteria of solvability.

    статья (203,1 K)
  • 240. Maximum power extraction from self-excited induction generators

    Technologies for voltage control of self-excited induction generators. An approach for maximizing the power extracted from self-excited induction generators in specific applications without strict restrictions on the generated frequency and voltage.

    статья (1,8 M)

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