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 relation between the particles velocity and the deposition efficiency of material powders. A different approaches for calculating the critical deposition velocity. Computational fluid dynamics model. Critical particle velocity determination.
Theoretical studies allow developing a theoretical substantiated method for calculating the stability of spray vortex countercurrent mass transfer device. Review and characterization of the effect on the drop centrifugal force and resistance forces.
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 antibacterial effect of chitooligosaccharides, evaluated against various microorganisms. The oligosaccharides from chitosan and fractionated with ultrafiltration membrane and enzymatic bioreactor. The molecular weight of chitooligosaccharides.
The effect of casein-stabilized metal and metal oxide nanoparticles on the in vitro growth of Scoparia dulcis L. was studied. The effect of nanoparticles on callus induction, regeneration of shoots and roots was studied. Influence on the regeneration.
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.
The methods of defrosting frozen berries affect sensory characteristics and the indicator of cell juice loss of the resulting product. This method preserved the tissue strength of the berry surface completely, resulting in null loss of cell juice.
An analysis of demand in the semiconductor industry, covering all three phases of materials: gases, liquids and solids. The study of the peculiarities of application for solids which includes a semiconductor substrate, metal, dielectric, an organic film.
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.
- 72. Chemical modification of aminopolysaccharide from shrimp shell by direct connection with polyaniline
Modification of aminopolysaccharide by deacetylation of chitin from the shrimp shell using the enzyme as a biocatalyst and microwave energy. The influence of temperature and reaction time, the ratio of aminopolysaccharide to aniline on its properties.
А technology for manufacturing composite materials - flocculants-coagulants on aluminum-silicon and iron-silicon base. The evaluation of the effectiveness of the developed flocculants-coagulants for cleaning of natural water and industrial wastewater.
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.
The manufacturing industry may be a key sector for the application of this technology, reduce the use of conventional energy sources, especially in the food industry located in the Andean region. Ecuadorian policies and regulations on renewable energy.
In the test of diesel engine, because the performance test of multi cylinder engine with different configuration needs to be replaced, and there is a certain risk in the first test, while the single cylinder engine is more suitable for the research.
Analysis of the effect of deposition parameters on the crystal structure, surface morphology and compositional properties of an indium sulfide films. The use of electron microscopy to study the orientation of grains. Investigation of optical absorption.
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.
The work of complex heat-recovery systems using water-hiting and air-heating heat-recovery exchangers was investigated. The combined use recovered heat to heat the return heat-network water, water of chemical water-purification system or combustion air.
Characterization of features spline approximation television pictures. Rearranged algorithm spline approximation television images detailing calculation of the coefficients which gives the possibility to improve the quality of decompressing video.
Computer-aided system as a solution of the computer-aided design task. Aerodynamical aspects of vertical-axis wind turbines. Principle of action of lift-driven vertical axis wind turbines. Formulation of the methodical basis for computer program.
Defining of dimensional relationships where the aspect ratio. The building process for 3D microdevices. The features of creation surface energy high enough to maintain adhesion of the electroplated material until completion of the plating process.
The electric drive of Crane mechanisms. The powered motor speed control via frequency converter and process control via programmable logic controller. Cranes are an important part of many industries and construction sites used for lifting heavy loads.
Controlling the rudder, counting the distance traveled, turning off the engine and resetting the wings - the simplest autopilot functions. Radio control - the technology, that allows drones to follow difficult routes, perform maneuvers in the air.
The application of the YOLOv8 and ByteTrack real time object identification algorithms to accurately determine the number of individuals boarding and exiting buses. This study aims to determine the prevalence of stowaways on buses in Kazakhstan.
Уравнение плановой эпюры скоростей с коэффициентом анизотропии в роли параметра формы. Примеры расчета теплогидравлики в ТВС со стержневыми твэлами. Проект реакторной установки "БРЕСТ-ОД-300". Моделирование процесса теплопереноса в системе CPCTFA.
The peculiarity of the formation and development of the system of ensuring the unity of measurements in Ukraine, in particular its technical basis - the reference base. Stages of formation of the Ukrainian system of ensuring the unity of measurements.
Creep and fatigue in polymer matrix composites. Stages, characteristics and deformation of creep. Mechanisms of creep. General creep equation. Dislocation, nabarro-herring, coble creep. Creep of polymers, of concrete. The molecular weight of the polymer.
