Results 61 to 70 of about 49,417 (309)
Energy Reports, 2022 Hydrogen fuel in internal combustion engine gives a very big advantage to the transportation sector especially in solving the greenhouse emission problem.
Mohd Radzi Abu Mansor +3 more
doaj +1 more source
Mechanical Autonomous Stochastic Heat Engine [PDF]
Physical Review Letters, 2016 Stochastic heat engines are devices that generate work from random thermal motion using a small number of highly fluctuating degrees of freedom. Proposals for such devices have existed for more than a century and include the Maxwell demon and the Feynman ratchet.
Serra-Garcia, Marc +5 more
openaire +4 more sources
Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications
FEBS Open Bio, EarlyView.This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley +1 more source
Mechanical Engineering Journal, 2020 In heavy duty diesel engines, reductions of exhaust emissions and improvement in thermal efficiency have been strongly required from a view point of the prevention of air pollution and global warming.
Takuya YAMAGUCHI
doaj +1 more source
Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes
FEBS Open Bio, EarlyView.We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde +3 more
wiley +1 more source
COOLING OF MARINE DIESEL ENGINE INTAKE AIR BY EJECTOR CHILLER WITH BUSTER HEAT PUMP
Авіаційно-космічна техніка та технологія, 2017 Cooling of intake air for the main engine of transport ship by ejector chiller utilizing the heat of exhaust gases has been analyzed. The necessity to increase a potential of the heat recovered during increased heat loads upon engine intake air cooling ...
Николай Иванович Радченко +2 more
doaj +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
HEAT EXCHANGE BETWEEN ENGINE BLOCK-CRANKCASE AND AIR FLOWS IN ENGINE COMPARTMENT
Наука и техника, 2008 A calculation technique is offered to determine convective heat exchange from a block-crankcase of a diesel engine. This technique makes it possible to get more accurate value of a remainder term of heat balance.
A. I. Yakubovich, V. E. Tarasenko
doaj
Irreversible Brownian Heat Engine [PDF]
Journal of Statistical Physics, 2017 We model a Brownian heat engine as a Brownian particle that hops in a periodic ratchet potential where the ratchet potential is coupled with a linearly decreasing background temperature. It is shown that the efficiency of such Brownian heat engine is far from Carnot efficiency even at quaistatic limit.
openaire +3 more sources