• Принцип работы p-n перехода - структуры, содержащей дырочную и электронную области полупроводника. Понятие области объёмного заряда. Механизм лавинного пробоя. Паразитная ёмкость p-n перехода. Важная особенность тунельного диода, его использование.

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  • The non-relativistic particle tunneling and scattering through a spherical three-dimensional potential barrier (either rectangular, or Coulomb repulsion), containing a spherical potential rectangular well with a hard core inside, had been studied.

    статья (332,1 K)
  • Analysis of new information on solar-terrestrial relations obtained using the PC index of magnetic activity. Acquaintance with the features of the correlation between the Ekl and PC variations during magnetic substorms for the period from 1998 to 2017.

    статья (14,1 M)
  • Consideration of the features of the energy of thermonuclear fusion. Study of the problems of nuclear power plants. The radiation hazard assessment. Devices designed to determine the level of radiation. The principle of operation of the Geiger counter.

    статья (41,7 K)
  • Оperating qualities of pin laminate of Cu - Mo used in low-voltage contactors outdoors. Performance of contactors with silver based contacts. Development of recommendations on effective application of such material to replace silver based compositions.

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  • Challenges of biofuel production. The main characteristics of the liquid biofuels production and consumption. Development trends of biofuels production with crop raw material. Economic incentives at different stages of the value chain of liquid biofuels.

    статья (172,5 K)
  • Analysis of perspectives of development of renewable energy sources in Poland in the future. Investigation and characterization of the cumulative power installation and electric energy production. Definition of the forecast of power installation.

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  • Structure-phase state, magnetic resistance investigation of Ni/Au/Ni film systems was carried out. Studying dimensional magnetic resistance. It was shown that in Ni/Au/Ni film systems is preferentially presents magnetic resistance in perpendicular pane.

    статья (620,5 K)
  • Phase transition for US gauge field is considered. A lower bound of the phase transition temperature by comparing of the average energy for the perturbative and nonperturbative regimes is estimated. In a scalar model of glueball its energy is calculated.

    статья (49,6 K)
  • The discovery of giant magnetic seasons granular thin films of alloys - the reason for the study the temperature coefficient of resistance, resistivity. Characteristics of schematic illustration of a single layer and tube current layered structure.

    статья (464,8 K)
  • Photocatalytic NaAuCl4 reduction by ethanol with participation of ZnO nanocrystals that results in the formation of gold nanocrystals with the mean size of 25–30 nm. Exceptional capability of gold nanocrystals to accumulate and retain negative charge.

    статья (2,7 M)
  • Analysis of samples based on carbon. Structural and electrical properties of grapheme-based samples for application of these samples in solar panels. Application in the modeling of hybrid energy systems and modeling of current-current characteristics.

    статья (144,7 K)
  • 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)
  • Evaluation of the effectiveness of the use of piezoelectric technology for the accumulation of energy produced by moving cars. Street lightening using piezoelectric roads. Electricity derived from fossil fuels. Israeli roads using piezoelectricity.

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  • 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)
  • The application of the PLC programmable logic controller in the Siemens S7-200 backup power source. The analysis of the normal operation state of one of the devices as the starting conditions and blocking conditions for automatic backup power sources.

    статья (541,1 K)
  • 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.

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  • 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)
  • 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)
  • 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)
  • 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)
  • Importance of the different parameters of wearing out of power transformer insulation prediction structure and operating factors. Selection of configuration and parameters of paper insulation and transformer oil technical state models is investigated.

    статья (264,1 K)
  • 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.

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  • Main Objectives of the Project. Alternatives of future. Stages of the Project. Methods and Information Energy in everyday. Main Results of the Project. Dinamics of power engineering. Sectoral and National Critical Technologies for Priority Area.

    презентация (803,1 K)
  • 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.

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  • The practice of processing natural gas to pipeline dry gas quality levels. Oil and condensate removal. The actual process used to separate oil from natural gas. Natural gas processing. An example of absorption dehydration is known as Glycol Dehydration.

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  • 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.

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  • 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)
  • 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)
  • 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)