Results 21 to 30 of about 810,550 (307)
Synthesis of [(4-Chloro-5H-1,2,3-dithiazol-5-ylidene)amino]azines
Molecules, 2011 The reactions of 2-, 3- and 4-aminopyridines with 4,5-dichloro-1,2,3-dithiazol-ium chloride (Appel salt) 4 to give N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene)pyridin-X-amines 1a (X = 2), 1g (X = 3) and 1k (X = 4) were optimized with respect to base ...
Panayiotis A. Koutentis +2 more
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Numerical Model of Heat Pipes as an Optimization Method of Heat Exchangers
Energies, 2021 This paper presents research results on heat pipe numerical models as optimization of heat pipe heat exchangers for intensification of heat exchange processes and the creation of heat exchangers with high efficiency while reducing their dimensions.
Łukasz Adrian +3 more
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Contemporary state of production of wood coal
Известия высших учебных заведений: Проблемы энергетики, 2018 The article deals with the properties of coal and the field of application, the development of technology for the production of charcoal, and also the installation for the processing of timber materials of the timber industry.
N. F. Timerbaev +3 more
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Nonequilibrium Weak Processes in Kaon Condensation II - Kinetics of condensation --- [PDF]
, 1999 The kinetics of negatively charged kaon condensation in the early stages of a newly born neutron star is considered. The thermal kaon process, in which kaons are thermally produced by nucleon-nucleon collisions, is found to be dominant throughout the ...
A. Akmal +69 more
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Nature Communications, 2022 AbstractLarge droplets emerging during dropwise condensation impair surface properties such as anti-fogging/frosting ability and heat transfer efficiency. How to spontaneously detach massive randomly distributed droplets with controlled sizes has remained a challenge.
Chen Ma +7 more
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CALCULATION OF TEMPERATURE-HUMIDITY MODE OF BRICK AND REINFORCED CONCRETE CHIMNEYS WALLS
Известия высших учебных заведений: Проблемы энергетики, 2018 The method for calculating the temperature-humidity mode of brick and reinforced concrete chimneys is presented. The processes of heat exchange of combustion products in the gas volume of the chimneys and heat and mass transfer in it’s walls also, are ...
D. A. Khvorenkov +2 more
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Frontiers in Mechanical Engineering, 2023 The ammonia-water film condensation is used as an efficient working fluid in industrial applications such as refrigeration, plate condenser and evaporator, absorber/generator heat exchange, air-conditioning, heat pumps and separation processes.
Abdelaziz Nasr +2 more
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Investigation on efficiency improvement of a Kalina cycle by sliding condensation pressure method [PDF]
, 2017 Conventional Kalina cycle-based geothermal power plants are designed with a fixed working point determined by the local maximum ambient temperature during the year.
Wang, Enhua, Yu, Zhibin, Zhang, Fujun
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Feshbach-Einstein Condensates [PDF]
Physical Review Letters, 2009 We investigate the phase diagram of a two-species Bose-Hubbard model describing atoms and molecules on a lattice, interacting via a Feshbach resonance. We identify a region where the system exhibits an exotic super-Mott phase and regions with phases characterized by atomic and/or molecular condensates.
Rousseau, V.G., Denteneer, P.J.H.
openaire +4 more sources
On the nature of Bose-Einstein condensation enhanced by localization [PDF]
, 2010 In a previous paper we established that for the perfect Bose gas and the mean-field Bose gas with an external random or weak potential, whenever there is generalized Bose-Einstein condensation in the eigenstates of the single particle Hamiltonian, there ...
Joseph V. Pulé +6 more
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