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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Физика и энергетика
  • 61. Comparative kinetics of ions for different modes of parametric Instability of intense langmuir waves in plasma

    Nonlinear regimes of 1D parametric instabilities of long-wave plasma waves are considered for the cases when the average plasma field energy density is less or greater than the plasma thermal energy. The evolution of ion energy distribution is studied.

    статья (369,3 K)
  • 62. Comparison of the covariance analysis results of the quest and the triad methods

    Analysis of parameters of the impact model measuring the accuracy of orientation using the QUEST and TRIAD method. Analysis of the influence of the parameters of the measuring model on the accuracy of determining the orientation of space vehicles.

    статья (293,5 K)
  • 63. Conceptual Relativism

    Familiarization with radically different views of conceptual relativism. Consideration of ideas and conceptual schemes doctrine conceptual relativism, claiming assets of different thinkers may have different conceptual schemes in the psychic world.

    статья (441,1 K)
  • 64. Control of the axial offset in a nuclear reactor at power maneuvering

    Review and description high reliability and security of power unit are basic requirements when the power unit maneuvering mode operation. Investigated of the power unit capacity automated control systems influence on axial offset under maneuvering mode.

    статья (547,3 K)
  • 65. Converting hurricane energy into industrial energy

    Monitoring the movement of tropical cyclones and tornadoes. Forecasting the occurrence, trajectory, strength and duration of a hurricane. Creation and deployment of special sea vessels in the center of wind activity to obtain green hydrogen and energy.

    статья (450,6 K)
  • 66. Correlation of secondary particles in the reaction of disintegration of 4He (γ, pn) d on the beam of coherent bremsstrahlung radiation

    Description of the experimental data of the 4Не(y, pn)d reaction at the photon beam energy Еy:30-100 MeV, obtained by the streamer chamber method on a coherent beam of y-quanta. Measurement of the energy and angular correlation of reaction products.

    статья (444,2 K)
  • 67. Cosmology of inhomogeneous rotating universe and reality show

    The development of a universal metric describing the properties of an inhomogeneous rotating Universe on the basis of solutions of the Einstein equations. The equation of state, describing the emergence of matter as the aggregate state of dark energy.

    статья (1,5 M)
  • 68. Cвободная (естественная) конвекция

    Анализ причин изменения коэффициента теплоотдачи при свободной конвекции. Свободная конвекция как движение жидкости за счет разности плотностей ее нагретых слоев. Знакомство с характером свободного движения жидкости около горячих горизонтальных труб.

    презентация (93,4 K)
  • 69. Cила трения

    Анализ силы, характеризующей соприкосновение одного тела с другим. Причины возникновения силы трения. Характеристика видов трения. Примеры силы трения покоя, скольжения, качения. Особенности полезного трения. Основные последствия вредного вида трения.

    презентация (12,4 M)
  • 70. Cинхронізувальні пристрої та їх призначення

    Призначення синхронізувальних пристроїв. Основні схеми пристроїв синхронізування з електромагнітним реле. Їх недоліки та переваги. Аналіз значень характерних напруг. Застосування реле постійного струму. Характеристика синхронізувальних діодних пристроїв.

    контрольная работа (403,6 K)
  • 71. Cистема удаленного энергомониторинга индивидуального теплового пункта корпуса электротехнического факультета

    Обзор и технологии построения систем удаленного энергомониторинга, их основные характеристики. Алгоритм работы системы энергомониторинга My-JEVis, методика подключения и настройки прибора VIDA 44M. Подбор конфигурации для настройки связи с сервером.

    дипломная работа (1,1 M)
  • 72. Cорбция-десорбция 137Сs и 90Sr в процессах миграции и дезактивации

    Процессы сорбции-десорбции в системах "радионуклид-природные глинистые минералы" и "радионуклид-модифицированные формы природных глинистых минералов с осажденными гумусовыми кислотами и гидроксидами железа". Использование аммонийных солей как реагентов.

    статья (326,9 K)
  • 73. Cуперсиметрія та точно розв'язувані задачі у квантовій механіці

    Дослідження суперсиметрії електронної в стаціонарних тривимірних магнітних полях у двовимірному випадку та частинки зі спіном. Аналіз розв’язків для енергетичних рівнів та хвильових функцій гармонічного осцилятора та релятивіського осцилятора Дірака.

    автореферат (93,8 K)
  • 74. Dangers of Electricity

    Electric current and its effect on the body. The types of effects that current levels can have on the body. The effect of current on the electric shock. An explanation of some of the most common effects of an electric shock. Consequences of shock.

    статья (12,7 K)
  • 75. Darwin-Lagrangian analysis for the interaction of a point charge and a magnet: considerations related to the controversy regarding the aharonov-bohm and aharonov-casher phase shifts

    The classical electromagnetic interaction of a point charge. The Darwin-Lagrangian and electromagnetic fields. Two-particle model for a magnetic moment. Conservation laws and transition to a multiparticle magnet. Forces in the multiparticle limit.

    статья (229,7 K)
  • 76. Dead rooms and live wires: Harvard, Hollywood and the deconstruction of architectural acoustics, 1900-1930

    Mathematical formula of W. Sabine for calculating the reverberation time in a room, a measure of how quickly or slowly sound energy dies away in an enclosed space. Studying the behavior of sound in rooms and absorption of sound energy by the materials.

    статья (8,4 M)
  • 77. Debt crisis in the electricity market: causes and threats to the economic security of electricity companies

    Study the causes of the debt crisis in the Ukrainian energy market, searching for ways to overcome them. Attracting loans from state and international banks to compensate for consumer debt. Increasing the volume of "clean" electricity exports in Ukraine.

    статья (467,9 K)
  • 78. Decay acceleration of isomers by X-ray laser

    The possibility of the two-step triggering of nuclear isomers by short X-ray laser pulses via an excited intermediate level. The estimations of the decay acceleration are performed for the isomer of 84-Rb in the field of future European X-ray laser.

    статья (229,2 K)
  • 79. Demonstration of chromatic dispersion compensation fibre using circular hole PCF with different pitch and diameters

    Approach for dispersion compensation. Introduction different air hole diameter and pitches to maintain the flat and zero dispersion in photonic crystal fiber. A new geometry of PCFs which uses ‘Circular’ holes instead of square or elliptical holes.

    автореферат (397,7 K)
  • 80. Demonstration of chromatic dispersion compensation fibre using square hole PCF

    Approach for dispersion compensation. Introduced different air hole diameter and different pitches to maintain the flat and zero dispersion in photonic crystal fiber. Proposed a new geometry of PCFs which uses "square" holes instead of circular holes.

    автореферат (384,3 K)
  • 81. Derivation of the lorentz force law and the magnetic field concept using an invariant formulation of the lorentz transformation

    Invariant formulation of the Lorentz transformation. Derivation of the Lorentz force law and the magnetic field. The time component of the relativistic generalisation of the Lorentz force law. The time component of newton’s second law in electrodynamics.

    статья (110,1 K)
  • 82. Derivation of the Relativistic Doppler Effect from the Lorentz Force

    Calculation and interpretation of the relativistic Doppler effect using only the Lorentz force and relativity theory. The Lorentz transformation and time dilation. Analysis the link between the invariance of the light speed and the Doppler relations.

    статья (228,3 K)
  • 83. Detection of stresses induced by heat flux in a solid by using a photoelastic microscope

    The advantages of the method of modulation polarimetry applied to the sample in the quartz glass plate to identify its internal thermal stresses caused by the spreading of the thermal wave. The solution to the problem of non-stationary thermoelasticity.

    статья (696,1 K)
  • 84. Deuterons interaction with nuclei 208pb at sub-barrier energies

    Interaction of weakly bound nuclei. The cluster structure of the neutron rich nuclei. The differential cross sections for elastic scattering of deuterons. The continuous energy distribution of protons and the peak of the structure of their spectra.

    статья (288,9 K)
  • 85. Development of the main phenomena of the concept pf an "active" consumer in a smart energy system

    Analysis of the capabilities of an "active" consumer in a household. Analysis of the role of active consumers in modern energy. Importance of the transition to a smart energy system and suggestion of directions for further development of this concept.

    статья (1,1 M)
  • 86. Development of Wide Area Measurement System (WAMS) in the Ural IPS for mode stress estimation. Approaches and decisions

    Directions of formation the main technical solutions to enhance the transmission capability of backbone network in this region through the development and implementation of facilities to determine the current values of stability margin in Russian UPS.

    статья (347,0 K)
  • 87. Dimensional effects in strain-sensitivity film systems based on Ni and Ag

    A widely usage of multicomponent film systems as a sensitive elements - a characteristic feature of multifunctional sensors. Influence of the phase composition, the structure of components on the mechanical properties of three-layer nickel films.

    статья (581,5 K)
  • 88. Doppler Effect

    Theoretical information about the history of the discovery of the Doppler effect, the disclosure of its physical nature. Building plot of the Doppler frequency of target velocity at a certain speed range and for given parameters of the wavelength.

    лабораторная работа (124,8 K)
  • 89. Dual inverter-fed drives with the synchronised multilevel voltage waveforms

    Adjustable electric drive system based on an asynchronous motor with open windings, powered by two paired inverters, regulated in accordance with synchronous vector modulation algorithms. Modeling systems with different types of vector modulation.

    статья (420,6 K)
  • 90. Dual three-phase adjustable speed drive with synchronized space-vector modulation

    Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation, has been investigated. Simulation results are presented for dual three-phase power conversion systems.

    статья (267,4 K)

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