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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Физика и энергетика
  • 271. Solar energy in Ukraine: analysis and its role in ensuring economic security

    The current state of renewable energy sources in Ukraine is studied. The indicators of the total capacity of solar energy of Ukraine were analyzed and the rating was determined in Europe by growth rates. Factors influencing the market of energy services.

    статья (674,4 K)
  • 272. Space and Relativity in Newton and Leibniz

    The usual interpretations of Newton's and Leibniz's view on the nature of space and the relativity of motion. A more accurate rendering of the opposition between Newton and Leibniz. Leibniz's theory of space against the representation of motion.

    статья (2,2 M)
  • 273. Spectral dependencies of Evans function for the Schrodinger equation

    The specific properties of the Evans function, its use as a tool in mathematical physics. Application of the Darboux transformation to the Schrodinger equation. Solution of the standard Riccati differential equation. Investigation of a discrete spectra.

    статья (30,6 K)
  • 274. Structure and Anti-Stokes Luminescence of Yb-containing Glass Co-doped with Eu, Ho and Er

    Synthesis of transparent siliceous environments with high-doped Yb-Er, Yb-Ho and Yb-Eu. Definition of media structure and spectral-luminescent properties in the anti-Stokes region when excited by ions Yb3 +. Analysis of properties silicious glassy media.

    статья (529,6 K)
  • 275. Structure and properties of superhard (Zr-Ti-Cr-Nb)N coatings

    Structure, composition and properties of these coatings were studied. Hardness measurements and adhesion tests were provided. Values of hardness and cohesive strength. Physical and technological parameters of deposition, elemental composition of coatings.

    статья (583,9 K)
  • 276. Study of electromagnetic wave backscattering from structures with anisotropic conductivity

    A possibility of backscattering controlling by means of structures with anisotropic conductivity is considered. It is shown that applying of this structures allowed to reduce the backscattering from leading and rear edges and from metal-impedance border.

    статья (340,6 K)
  • 277. Study of hydrodynamic luminescence in a cavitation liquid medium

    Familiarity with the main features of the experimental study of hydrodynamic luminescence in a cavitating liquid medium, problem analysis. General characteristics of important stages of development of the basic hydraulic scheme of the test bench.

    статья (1,8 M)
  • 278. Study of spectral and polarization characteristics of layered chiral media

    Study of spectral characteristics of layered chiral media using the method of matrix distribution. The calculation of the coefficients of transmission and reflection of linearly polarized electromagnetic wave on the structure of planar chiral layers.

    статья (276,8 K)
  • 279. Study on heating load calculation model using map data

    Calculation condition of heating load calculation, simulation. Evaluation of heating load calculation considering the surrounding environment. Comparison of heating load of surrounding environment by simulation. Reference value by class of housing.

    статья (1,3 M)
  • 280. Surface Plasmon-Polariton in X-Shaped Waveguides

    The study of surface electromagnetic waves propagating along а boundary line. Methods of achieving efficient excitation of surface plasmon polaritons. Properties of quasi-particles and photons interacting with elementary excitations of environment.

    статья (452,5 K)
  • 281. Synthesis and properties of superparamagnetic gamma-Fe2O3

    Method of nanodispersed Fe2O3 synthesis by thermal decomposition of iron citrate. Particles of synthesized materials in a state of magnetic ordering and in superparamagnetics. Influence of magnetic dipole interaction on parameters of Mossbauer spectra.

    статья (935,9 K)
  • 282. Synthesis of the intellectual system for assessment of the technical condition of electrical supply system equipment with photoelectric plants and energy storage

    A mathematical model of the system of proactive management of the condition of the electrical equipment, which involves the selection and use of various methods of intellectual analysis of information about changes in its key diagnostic parameters.

    статья (698,3 K)
  • 283. Temperature dependence of the isovector dipole response for asymmetric spherical nuclei:a kinetic-theory approach

    Semiclassical approach based on the Vlasov equation for finite systems with moving surface. Study isovector dipole excitations heated spherical nuclei with neutron excess. Collision integral in the approximation of the effective relaxation time.

    статья (275,1 K)
  • 284. Temperature Dependences of Losses in High Frequency Dielectrics

    The essence of temperature is one of the most important factors affecting the coefficient of dielectric loss. This paper presents the investigation of temperature dependences of the microwave dielectric losses for different mechanisms of polarization.

    статья (318,1 K)
  • 285. Temperature frequency characteristics of charge transition in the li0.5fe2.4ti0.1o4 non-stoichiometric system

    The study of temperature-frequency dependencies of the conductivity nestekhiometriya spinel. The existence of frequency dispersion of conductivity. The establishment of the value of conductivity, its dependence on the number of Fe2+ ions in the structure.

    статья (687,7 K)
  • 286. Temporal dynamics of focal point location under self-focusing of nanosecond laser pulses

    Characteristic main features of the location, velocity and the acceleration of the focal point which are determined with taking the group speed of laser radiation into consideration. Definition of the acceleration of the focal point at the exit.

    статья (347,9 K)
  • 287. Tensor of the electromagnetic field and the Lorentz force, therefore the geometry of space-time of Minkowski

    Infinitesimal transformations, Maxwell tensor and electromagnetic forces. The Maxwell field tensor. Integral curves associated with the equations of motion and the end of the Lorentz transformation. Electromagnetic force and geometry of space-time.

    статья (55,5 K)
  • 288. The absence of "torque" in the Trouton-Noble experiment

    Description of experiment on determination of the revolved moment of the charged elementary particles at a conclusion them from a spacehold. Change the rate of earthly movement through "Ether" with an inactive result and description of general paradox.

    реферат (41,4 K)
  • 289. The basics of forming the principles of functioning and development of the energy market in Ukraine

    The article examines the historical aspects of the formation the energy market of independent Ukraine. The first principles and features of the Ukrainian energy market and their effectiveness are given; steps towards European integration are summarized.

    статья (28,6 K)
  • 290. The biomass usage as an energy source in choosing the enterprise’s location

    The use of biomass as an energy source in the enterprise. The connection between the integrated management of resources and the supply chain. The advantages and long-term prospects of biomass use in the Ukrainian market. Logistics of biomass supply.

    статья (215,0 K)
  • 291. The calculation of stress-strain state of anisotropic composite finite-element area with different boundary conditions on the surface

    The numerical-analytic approach to solve the stress-strain state problems of an arbitrary finite element simple-connected composite object with different surface mounting types. The main problem is solvedby using the elasticity theory spatial model.

    контрольная работа (320,5 K)
  • 292. The creation of the phonon spectrum according to the specific heat for composite materials

    Description of the method for determining the density of phonon states of composite materials based on the heat capacity of composite materials based on polytetrafluoroethylene matrix. Analysis of the boundary values of the intensity of phonon spectra.

    статья (68,8 K)
  • 293. The effect of particle-hole interaction to the energy separation of protons and neutrons in families mirror nuclei at nearly symmetrical

    Сalculating an energy separation for the protons and neutrons in the family mirror nuclei with Z=N±1. The energy separation of protons and neutrons from nuclei with odd and even nucleon subshell. The effect of particle-hole interaction in nucleus.

    статья (118,7 K)
  • 294. The equation of state of symmetric and asymmetric nuclear matter

    Properties of nuclei, heavy ion collisions and neutron stars. An estimate of the coefficient of incompressibility. Frequent mode of interaction of a particle collision. The theory for the microscopic description of the various modes of giant resonances.

    статья (279,0 K)
  • 295. The extended Lorentz force

    Development of the Connection: Coulomb's Law, Ampere's Law with Displacement Current, Faraday's Law. Other Equations of Electromagnetism. Continuity Equation and transformation properties of the connection. The first Chern class and Lorentz Force.

    статья (93,5 K)
  • 296. The Lorentz Force Law and Spacetime Symmetries

    Poincare Transformations of the Direct Sum Field. On Site Verbal Explanations at the Poster Session. Vector-Tensor Field, Translation Matrix. Constant Magnetic and Electric Field. Origin of the Connection. Parallel Translation and The Lorentz Force Law.

    статья (139,1 K)
  • 297. The Lorentz-Dirac equation: one more paradox of preacceleration

    The formation of the event horizon: one more paradox of classical Lorentz-Dirac preaccelerative solution. This paradox makes unrealizable the desire to solve problems of Lorentz-Dirac equation using preacceleration and backward in time integration.

    статья (42,1 K)
  • 298. The Marinov Motor, Notional Induction without a Magnetic B Field

    The essential elements of the Marinov motor. Derivation of the net force driving the rotor. Force of induction from Weber electrodynamics. Forces on electron currents in a metal yield a ponderomotive force. Electromotive versus ponderomotive force.

    статья (45,4 K)
  • 299. The motor-generator

    Results of tests of the model of the motor-generator – the convincing proof of an inaccuracy of the first law of Newton and existing electrodynamics. Formation of an autonomous energy source with the service life equal to service life of the accumulator.

    статья (733,0 K)
  • 300. The Paradoxical Forces for the Classical Electromagnetic Lag Associated with the Aharonov-Bohm Phase Shift

    The classical electromagnetic lag. Use of the darwin-lagrangian analysis. Calculation of the aharonov-bohm phase shift. Experimental tests for velocity changes. The test for electromagnetic lag in the quantum topological description of the phase shift.

    статья (74,7 K)

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