Results 21 to 30 of about 776,064 (119)

Prospects of Using Gas Hydrates in Power Plants

open access: yesEnergies, 2022
By adding water to fuels, several objectives are pursued, with the main ones being to stabilize combustion, minimize the anthropogenic gaseous emissions, homogenize and stabilize the fuel, as well as improve its fire and explosion safety.
Dmitrii Antonov   +4 more
doaj   +1 more source

Experimental and Numerical Investigation of Gaseous Detonation in a Narrow Channel with Obstacles

open access: yesFluids, 2021
Gaseous detonation propagation in a thin channel with regularly spaced cylindrical obstacles was investigated experimentally and numerically. The wave propagation with substantial velocity deficits is observed and the details of its propagation mechanism
Pavel N. Krivosheyev   +5 more
doaj   +1 more source

Doped and Decorated Carbon Nanomaterials

open access: yesEurasian Chemico-Technological Journal, 2015
This work shows the preliminary results concerning to the synthesis or modification of carbon-based nanomaterials by plasma discharge, magnetron sputtering, and chemical vapor deposition methodologies.
J. Matos   +6 more
doaj   +1 more source

Influence of Temperature from 20 to 100 °C on Specific Surface Energy and Fracture Toughness of Silicon Wafers

open access: yesПриборы и методы измерений, 2023
The influence of temperature in the range from 20 to 100 °C on the specific surface energy and fracture toughness of standard silicon wafers of three orientations (100), (110) and (111) was studied.
V. A. Lapitskaya   +2 more
doaj   +1 more source

Multi-Criteria Efficiency Analysis of Using Waste-Based Fuel Mixtures in the Power Industries of China, Japan, and Russia

open access: yesApplied Sciences, 2020
This paper presents the results of analyzing the efficiency of the following five fuel types: dry coal, wet coal processing waste, coal–water slurry, and two waste-derived slurries.
Ksenia Vershinina   +4 more
doaj   +1 more source

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

Mathematical and Physical Description of Transport Phenomena in Heat Pipes Based on Nanofluids: A Review

open access: yesNanomaterials
Heat pipes are highly efficient heat transfer devices relying on phase-change mechanisms, with performance heavily influenced by working fluids and operational dynamics. This review article comprehensively examines hydrodynamics and heat transfer in heat
Marina S. Astanina   +4 more
doaj   +1 more source

Microwave Pyrolysis of Woody Biomass: Influence of Radiation Power on the Composition of Conversion Products

open access: yesApplied Sciences, 2023
Biomass is a promising resource for the production of renewable energy, liquid fuels, and chemicals. Microwave pyrolysis is one of the directions of multifunctional conversion of raw materials.
Anatoliy Shvets   +3 more
doaj   +1 more source

Switching Coal-Fired Thermal Power Plant to Composite Fuel for Recovering Industrial and Municipal Waste: Combustion Characteristics, Emissions, and Economic Effect

open access: yesEnergies, 2020
Combustion characteristics were studied experimentally for single droplets of fuel slurries based on wet coal processing waste with municipal solid waste components (cardboard, plastic, rubber, and wood) and used turbine oil.
Dmitrii Glushkov   +2 more
doaj   +1 more source

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

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