Analysis of requirements for electric-drive of mechanism of pulsed wire feed, and the benefits of using a special Brushless Direct Current electric-drive. Design of half-bridge circuit to regulate the strength of the current phase of the stator windings.
Proposal and implementation of a new methodology for calculating the bending finned tubes for heat exchange systems. Getting high-quality bends with minimum radius of bending pipes bimetallic and monometallic. The use of technology in the helical rolling.
Formulation of the problem of calculating the scalar potential of the electric field in the axisymmetric disk, the material which has anisotropic permittivity. The method of successive approximations, a description of the potential of the electric field.
The use of Calibration and Measurement Capability (CMC) to inform customers about quantities, ranges and uncertainty of the measurement laboratory. Problems for CMC tables for electrical quantity. The capabilities of accredited calibration laboratories.
The main production methods jet fuels rocket engines. Prospects for the use of various raw materials to produce jet fuels in the context of limited energy resources. The impact of processing production and use of aviation fuels on the environment.
Zinc and Lead Market Update. Zinc daily price and stock level. Zinc Metal World Balance. Lead daily price and stock level. Zinc Metal Production in CIS. Russian Zinc Market Overview. Mining segment – Operational performance. Income statement highlights.
Analysis of the selective adsorbent. Influence of modifying pentasyl group synthetic zeolites (Silicalite-1 and Silicalite-2) with metal cations capable to specific interactions on the separation ability of the chromatographic column has been studied.
Comparison of two non-conventional processes which are laser and photochemical machining. The formation of complex shapes in metal sheets. Chemical etching of the material for the manufacture of the desired finished product by a controlled corrosion.
The comparison of natural modes for the first and second transverse oscillation modes obtained by numerical simulation and finite element package of analytical calculation of the core model. The analysis waveforms for different values of the defect.
Analysis of the problem of recycling used tires. Search for methods of processing rubber waste. Investigation of foamed polymer compositions filled with rubber. The use of partial vulcanization to increase the interfacial interaction in the polymer blend.
Regulatory basis that promotes the development of renewable energy in Ukraine. The features of energy saving measures as a complex final consumption product. A complex of activation instruments being adjusted to the characteristics of individual objects.
Исследования по результатам чистки сточных вод лакокрасочных предприятий. Установки для механической физико-химической и биологической очистки. Обработка воды коагулянтами. Установки автоматического фильтра типа Black. Сточные воды лакомасляного цеха.
Розробка структурологічних основ створення наноструктурної кераміки з діелектричними властивостями із чистого титанату барію на основі вивчення залежності його діелектричних властивостей від мікроструктури в нанокристалічній області розмірів зерен.
Damage assessment of components of automobile and aircraft internal combustion engines, made of gamma titanium aluminides. Recommendations to prevent the negative influence of high temperatures in multilayer thin films on gamma titanium aluminides.
The establishment of unfavorable modes of operation of mining equipment under which there is an unstable position in space of the suction head during its descent to the bottom. The influence of hydrostatic pressure on the strengthening of the digging.
Two sensor designs of metallic cylindrical resonator Coriolis vibratory gyroscope are analyzed in this work. Resonant frequencies computer modeling results are resented and on their basis gyroscope sensor geometrical parameters choice is validated.
Characterization of elastic properties of saturated hydrocarbons and associates resinous-asfaltenovyh of compounds by simulating molecular dynamics. Evaluation of rheological behavior of heavy oil the elasticity matrix of transversely isotropic material.
Characteristics of jet fuels: general information and properties. Fractional composition: initial boiling point and 10% fuel distillation temperature, 50% fuel distillation temperature and temperature of 90 % fuel distillation (t90) and dry point.
Analysis of a mathematical model to determine the transient modes of rotary kilns, drying drums and mills taking into account electromagnetic processes in the induction motor. Mechanical vibrations of the elements of the drive mechanism, long metal body.
There exists a wide range and a considerable potential of alternative gas fuel types. Uncertainty, flexibility of nonconventional fuels’ composition seriously limits the possible exploitation of these energy sources. Equations of chemical thermodynamics.