Insulation materials
Material or article used for heat insulation of buildings, structures, industrial equipment, and transportation vehicles. Main indicator of the quality of an insulating material. Mineral wool and articles made from it, lightweight and cellular concretes.
Подобные документы
Analyzes the heat supply complex on the example of Lviv region. The ways of diversifying fuel and energy resources of Ukraine. The basic directions of implementing the alternative energy sources. The alternative and renewable energy sources potential.
статья, добавлен 28.09.2016Peculiarities of research into the problem of reliability of automotive power supply systems. The main characteristic of the power supply system testing methodology. Consideration of the main classification of failures of automotive electrical equipment.
статья, добавлен 08.12.2024Identify the best value of the functional for four-layer structures at different angles of light incidence. Calculation of the performance of software developed by the algorithm for solving the problem of optimization of multilayer optical structures.
статья, добавлен 20.01.2017Multilevel converter constructing and functioning principles. Method of current forming for contact microwelding equipment allows significant decreasing of cells and switches quantity, increasing of energy efficiency with high quality of welded joint.
статья, добавлен 02.02.2019A 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, добавлен 04.11.2018A sample of plastic material for use as an ingredient in the backlight illumination of liquid-crystal display. Experimental reflections from metallic surfaces. The destructive interference between different regions of each “tooth” on the sample screens.
лабораторная работа, добавлен 26.05.2014Semiconductor 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, добавлен 30.07.2016Contact resistance and Schottky barriers, optical characterization. Interface traps and inversion charge frequency response to the extraction of the effective mobility. X-Ray and Gamma-Ray techniques, schematic of a scanning electron microscope.
книга, добавлен 11.06.2014The introduction of sulfur in the liquid condensates of zinc oxide as one of the ways to create efficient phosphors based on this material. Application of the method of extrapolation of Nelson-Riley to obtain accurate values of the lattice constant.
статья, добавлен 30.07.2016A technological overview and examination of the types of frequency converters and their applications in various industries. Ways of improvements in power electronics, control algorithms, and materials, innovations in enhancing energy efficiency.
статья, добавлен 09.12.2024- 36. Intrinsic point defects in anisotropic crystalline systems (quasi-two NbSe2 and quasi-one NbSe3)
Heat treatment of single crystals of NbSe2 and NbSe3. The complex investigation of the temperature dependences of resistance NbSe3 and NbSe2 in different environments in the field of 300-550 K. The relative change of the linear dimensions NbSe2.
статья, добавлен 22.12.2016 A description of techniques for increasing the efficiency of a triple-flow pipe with finning used under particular conditions. Calculation of the cooled flow portion. Dependence of the heat performance coefficient on the proportion of the cooled flow.
статья, добавлен 22.03.2021Three effects deformation-twinning based metal strengthening: reduction of the free slip distance, transformation of glissile to sessile dislocations and textural softening due to reorientation of the material to a favourable orientation for slip.
статья, добавлен 18.01.2014The essence of the method of a round flat constant power probe used to determine the thermal characteristics of solids. Formulas for calculating thermal conductivity and thermal diffusivity. Measuring equipment, analysis of experimental results.
статья, добавлен 30.05.2021The effectiveness of the solution algorithms, integration of Euler’s method. Substantial foundations of the theory of creep. Requirements for a number of material constants that describe the experiment. Foundations of hypotheses of the microstrains.
статья, добавлен 29.11.2016Development of a method for increasing the energy efficiency of a household refrigerator by intensifying the process of heat removal from the refrigeration unit with modern fans for blowing the surfaces of the compressor and condenser unit of the device.
статья, добавлен 20.06.2020Checking the accuracy of an experimental technique suggested earlier for determining piezooptic coefficients. It is based on inducing a predefined 2D distribution of mechanical stresses in a transparent material disk compressed along its diameter.
статья, добавлен 29.01.2016Quantification of plastic strain by crystal orientation. Crystal orientation distribution and calculation of crystal deformation. Influence of the EBSD system. Relation with plastic strain. Misorientations from central orientation in each grain.
статья, добавлен 18.01.2014Analysis of current state and prospects of applicability of a high power electron beam technology for manufacturing metallic and nonmetallic composite materials. Study of equipment for high power beam technology and properties of selected compositions.
статья, добавлен 08.02.2017Calculation of main electrical value and determination of isolation distances. Determination of the mass of the active part of the magnetic circuit, building materials and oil. Description of the design of transformers. Calculation of the HV winding.
дипломная работа, добавлен 06.12.2016The energy-momentum distribution and the mechanical forces of the electromagnetic field in material media. The discussion of the energy-momentum tensor in macroscopic electrodynamics. The Maxwell stress tensor. Electromagnetic force in James’ experiment.
статья, добавлен 11.09.2012Fabrication and optical properties of metal-dielectric nanostructures consisting of stacked monolayers of silver nanoparticles. Materials and samples preparation. Fabrication of multilayered nanostructures. The extinction spectra of the nanostructures.
статья, добавлен 30.07.2016Describing space-time evolution of electric charge induced in dielectric layer of simulated metalinsulator-semiconductor structures due to irradiation with X-rays. The system of equations used as a basis of the simulation model is solved iteratively.
статья, добавлен 30.07.2016Structural, magnetic and transport properties of electron beam evaporated, its multilayered structure. Determination of changes in the crystal structures for different sub-layers. The description of the particle size and the value of the coercive force.
статья, добавлен 30.07.2016- 50. 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, добавлен 29.07.2016