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сколько стоит заказать работу? коллекция "otherreferats"
Главная Коллекция "Otherreferats" Физика и энергетика
  • 391. Photoeffect peculiarities in macroporous silicon structures

    The effects of increase in photoconductivity in the macroporous silicon structures. Founding to achieve a maximum at the distance between macropores equal to the double thickness of the Shottky layer what corresponds to the experimental results.

    статья (243,9 K)
  • 392. Photoelectric properties of semiconductor structure of porous silicon formed by metal-stimulated etching

    The method of metal-stimulated etching and electrochemical anodic etching were compared. The photoelectric properties of the resulting structure are influenced by the processes of recharging traps. The highly sensitive photodiodes in solar energy.

    статья (131,1 K)
  • 393. Physical modeling of technological characteristics at stretch forging of billets with rotation in combined dies

    Intensification of billet deformation for reaching effect of macroshift deformations during stretch forging in combined dies is grounded. Technological modes for approximation work-piece cross-section to round shape and getting resource saving effect.

    статья (351,0 K)
  • 394. Physics of hermetic sealing of large portion of gas using magnetic fluid membrane

    Features of the physical mechanism of hermetic sealing and storing the air cavity of large volume, based on using magnetic fluid. The use of a mechanism for creating devices of sampling and chemical analysis of gases in mines and chemical industry.

    статья (311,1 K)
  • 395. Plasmon resonance in а-С: Н films modified with platinum nanoclusters

    Optical density spectra of amorphous diamond-like films of hydrogenated carbon modified with platinum impurity. The peculiarities of their receipt by the method of ion plasma magnetron joint sputtering of graphite, platinum in argon-hydrogen atmosphere.

    статья (281,8 K)
  • 396. Poland's energy security in the process of energy transformation

    Concept of energy security. Direction of Poland's energy transformation, diagnosis of threats and challenges. Production and forecast of electricity production in country up to 2040. Reduction of emissions, nuclear power plant, renewable energy sources.

    статья (206,9 K)
  • 397. Possible pathway to discovery of superconductivity above 200K

    The concept of influence of protons on superconductivity and the ideas for determination of superconducting materials with 200K. A superconducting impurity in some layered phases. The study sample with an optimal interlayer electrostatic potential.

    статья (898,7 K)
  • 398. Post-crystallization process

    Distribution of solid solution on phase diagram. Solid homogeneous feldspars. Term for albite exsolution lamellae in K-spar matrix. Examples of post-crystallization. Smoother boundaries from recrystallization. Replacement of one mineral by another.

    презентация (8,7 M)
  • 399. Postradiation accumulation of F4 centers in gamma-irradiated LiF crystals

    Investigation of the post-radiation accumulation of F4 centers in gamma-irradiated LiF crystals after combined (simultaneous or sequential) exposure to moderate heat and a constant electric field. The analysis of the obtained results is carried out.

    статья (51,3 K)
  • 400. Power engineering. Power stations

    The energy industry is energy, which includes generation, transmission and distribution of electricity. Thermal power plant is a power plant producing electrical energy by converting chemical energy. Nuclear power plant is a complex of necessary systems.

    статья (29,1 K)
  • 401. Power plant. The types of power plants

    The efficiency of a thermal power cycle. Use of waste heat for process or central heating. Ways to increase the overall efficiency of the power plant. A combination of different thermodynamic cycles in a combined cycle. Once-through cooling systems.

    статья (37,1 K)
  • 402. Power supply with discrete electricity consumption

    The analytical expression for the calculation of the relay mode frequency and power. Development of parameters of electric energy converters. The absence of the phase shift between voltage and current. Solution EMC problems. The reduction of power losses.

    статья (919,9 K)
  • 403. Power system stability and robustness of synchronous machine’s excitation control with magnitude-phase voltage regulator

    The conditions to provide the robust stability and control of synchronous machine’s excitation control with magnitude-phase automatic voltage regulator. The structure of MP-AVR with complex input signal. The control law and transfer function of MP-AVR.

    статья (282,1 K)
  • 404. Precise laser interferometry with 1 pm resolution

    In this paper we represent the distinguished laser interferometer technique that allows the wide sort of precise object displacements to be measured with the instrumental resolution up to 1 pm. Indicated the accuracy of reading of the interferometer.

    реферат (291,6 K)
  • 405. Predictive assessment of the Ukrainian power industry fuel balance structure progress

    Possible directions to normalize the fuel and energy balance of Ukraine. Necessity of technical upgrade and modernization of allocated boiler installations, as well as reequipment and modernization of power plants industrial sites infrastructure.

    статья (295,7 K)
  • 406. Preliminary Determination of Propeller Aerodynamic Characteristics for Small Aeroplanes

    Conducting a preliminary determination of the propeller thrust and power coefficients depending on the predetermined relationship with the help of representative geometrical parameters of the blade at a certain radius. Evaluation of nonlinear influence.

    статья (187,3 K)
  • 407. Prerequisites and key measures for the implementation of sustainable energy innovations in China

    China's experience in ensuring the energy transition and directions and policy initiatives for the implementation and development of sustainable energy innovations. Analysis of the energy structure. The dominance of coal production and consumption.

    статья (629,9 K)
  • 408. Present concept of integral safety of nuclear facilities

    Rules of International Atomic Energy Agency. Present process model of nuclear facility safety management, its processes and programme for nuclear facility safety upgrading in a context of integral safety directed to existence, development of humans.

    статья (309,5 K)
  • 409. Problems of protection during the massive penetration of renewable energy sources in power systems

    Among the various sources of alternative energy, wind and solar are two prominent and promising alternatives for future electricity needs. These sources are integrated into distribution networks for local consumers. Adaptive retransmission schemes.

    статья (83,6 K)
  • 410. Production of quasicomposite surface layer of a metal material by shock wave strain hardening

    Features application of shock wave mechanical hardening for the production of micro - or nanocrystalline heterogeneous structures in homogeneous metals or alloys. Analysis of the layering structure and higher productivity of the strengthened element.

    статья (391,4 K)
  • 411. Progress of Complexes of Local Emergency Control Automation

    Analysis of progress of complexes of local emergency control automation. Hardware and software of modern complexes of ECA. Algorithms of emergency control automation. Digital input/output data used in systems of relay protected and ECA of power industry.

    статья (150,2 K)
  • 412. Project of building: solar hot water

    Feature of increasing demand for alternative energy sources. The essence of designing solar water heating systems. Placement of water storage tanks and distribution pipes. The influence of building architecture on the absorption properties of radiation.

    статья (487,0 K)
  • 413. Project Studiocs Электрика 3.0

    Проектирование сети электроснабжения строительных объектов различного назначения. Основные возможности программы Project StudioCS Электрика 3.0. Объединение модулей системы (освещения и силы). Работа с базами. Формирование набора проектной документации.

    реферат (725,2 K)
  • 414. Properties of heavy and superheavy nuclei

    Study of heavy and superheavy nuclei. Small sectional synthesis SHN. Analysis of the height of the static fission barriers Bfst of heavy nuclei at the single particle. Determination of the energy of the odd nucleon. Static barrier spontaneous fission.

    статья (376,9 K)
  • 415. Prospects for use of electrohydrodynamic dispersion of charged meniscus and jets in the development and creation of new materials and processes

    Areas of application electrodispersion meniscus and the capillary breakup of jets of liquids in a variety of industries with current technology. Education of pulsating microcones. The dynamics of the water meniscus depending on the applied voltage.

    статья (189,8 K)
  • 416. Prospects of energy cooperation between the Russian Federation and the Republic of Korea in the context of establishing of the Asian Super Grid

    Compares the outcomes of reforms from viewpoint of compatibility with integration of the energy systems into wider networks, using the Asian Super Grid and Korean Connector as examples. Analysis of Russia's readiness for the integration of power systems.

    статья (32,2 K)
  • 417. Protecting information from classical error correction to quantum cryptography

    Introduction to error correction and cryptography is unique in devoting several chapters to quantum cryptography and computing, thus providing a context in which ideas from mathematics and physics meet. By such topics as quantum factoring algorithm.

    книга (964,5 K)
  • 418. Pulsed Cathodoluminescence of ZnWO4:Eu Single Crystals and Nanocrystals

    Pulsed cathodoluminescence of zinc tungstate samples, doped with europium. Influence of crystal size on the spectral and kinetic parameters of oxygen luminescence within the model of self-organization of the nanodefects in the process of growing crystals.

    статья (1,2 M)
  • 419. Pасчет цепей постоянного и переменного тока

    Анализ линейных электрических цепей постоянного тока. Изучение физического смысла таких электротехнических величин, как ток, напряжение, сопротивление. Графические обозначения электротехнических элементов, их соединения по электротехническим схемам.

    контрольная работа (359,1 K)
  • 420. Q-switched erbium-doped fibre laser using graphene-based saturable absorber obtained by mechanical exfoliation

    Characteristic features of lasers operating in continuous-wave or quasi-CW regimes generate a restricted output optical power, which is limited by a maximum available pump power. Analysis Raman spectrum measured for the graphene-deposited fibre ferrule.

    статья (402,3 K)

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