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Physical and Mathematical Models of Micro-Explosions: Achievements and Directions of Improvement

open access: yesEnergies, 2023
The environmental, economic, and energy problems of the modern world motivate the development of alternative fuel technologies. Multifuel technology can help reduce the carbon footprint and waste from the raw materials sector as well as slow down the ...
Dmitrii V. Antonov   +3 more
doaj   +1 more source

Binary mass transfer in 3D: Mass transfer rate and morphology

open access: yesAstronomy & Astrophysics
Mass transfer is crucial in binary evolution, yet its theoretical treatment has long relied on analytic models whose key assumptions remain debated. We present a direct and systematic evaluation of these assumptions using high-resolution 3D hydrodynamical simulations including the Coriolis force.
T. Ryu   +8 more
openaire   +3 more sources

Power‐law multi‐wave model for COVID‐19 propagation in countries with nonuniform population density

open access: yesQuantitative Biology, 2022
Background The purpose of our study is to develop a quite precise mathematical model which describes epidemics spread in a country with non‐uniform population density.
Pavel Grinchuk, Sergey Fisenko
doaj   +1 more source

HIGH-TEMPERATURE THERMAL-VISION SYSTEM ON THE BASIS OF DIGITAL CAMERA-RECORDER WITH THE PURPOSE OF APPLICATION IN METALLURGY TECHNOLOGIES

open access: yesЛитьë и металлургия, 2006
The system of measuring of the temperature fields distributing, constructed on the basis of digital camera-recorder, is considered. It is shown that the system has advantages as compared to traditional thermal-imaging sets on receivers, operating in ...
I. V. Fain   +3 more
doaj  

Containment and Suppression of Class A Fires Using CO2 Hydrate

open access: yesFire, 2023
This paper presents the experimental findings on fire containment and suppression by dropping CO2 hydrate granules and tablets on burning solid materials.
Olga Gaidukova   +3 more
doaj   +1 more source

COMPLEX INVESTIGATIONS OF THERMALPHYSIC AND INFRA-RED CHARACTERISTICS AT THE PHASE INVERSIONS

open access: yesЛитьë и металлургия, 2005
The complex methods of investigation of heat exchange at crystallization and melting of selectively transparent materials in terms of changing of external heat influences, which include calorimetry of IK-currents, temperature taking, the heat conduction ...
V. L. Dragun   +3 more
doaj  

Investigation of the regularities of vortical flows in a cyclone-bed chamber

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
Experimental investigation of the radial distributions of tangential and longitudinal velocities, total and static pressures in the vortex zone of a cyclone-bed chamber of diameter 0.21 m has been carried out.
E. A. Pitsukha   +2 more
doaj   +1 more source

Intensification of Evaporation and Condensation Processes in Heat Exchange Apparatus

open access: yesНаука и техника, 2005
The paper describes proposed design solutions for an intensification of heat transfer in evaporation and condensation heat exchangers. Complex experimental research of heat and mass transfer processes in flat and round cross-section miniature heat pipes ...
L. L. Vasiliev, A. G. Kulakov
doaj   +1 more source

Numerical Modeling of a Flame Surface in the Closed Chamber

open access: yesМеханика машин, механизмов и материалов, 2008
The method for modeling of the flame surface in a closed cylindrical bomb is developed assuming preserving the spherical flame front at interactions with confined walls.
M.S. Assad, V.N. Mironov, O.G. Penyazkov
doaj  

Additives to Coal-Based Fuel Pellets for the Intensification of Combustion and Reduction in Anthropogenic Gas Emissions

open access: yesApplied Sciences, 2020
Cylinder-shaped fuel pellets that were 3 mm in diameter and 3 mm in height, with a mass of 20 mg, were produced by compressing dry coal processing waste under the pressure of 5 MPa. The first group of pellets from coal dust with a particle size less than
Dmitriy Klepikov   +3 more
doaj   +1 more source

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