Results 41 to 50 of about 194,348 (239)
Inventions, 2019 The transformation of a standard 4-stroke cylinder head into a torque-improved and gradually more efficient 2-stroke design is discussed. The concept with an effective loop scavenging via an extended inlet valve holds promise for engines at low- to ...
Dirk Rueter
doaj +1 more source
Study on quasi-isothermal expansion process of compressed air based on spray heat transfer
Energy Reports, 2022 The piston expander with compressed air as working medium has been widely studied for its advantages of cleanliness, reliability and safety, but its application is limited by low exhaust temperature and low output power/efficiency.
Qihui Yu +3 more
doaj +1 more source
Arthritis Care &Research, Accepted Article.Objectives This study aimed to investigate hand function trajectories over 5 years in primary hand osteoarthritis. Additionally, determinants of baseline and longitudinal hand function were assessed. Methods 538 patients with both baseline and 5‐year study visits were analyzed.
Annemiek V.E.M. Olde Meule +4 more
wiley +1 more source
The lifetime forecasting of machine elements by fatigue strength criterion
Diagnostyka, 2021 The method for assessing the lifetime of structural elements by the criterion of fatigue strength is improved. It includes tests of laboratory material samples, the positions of the statistical theory of similarity of fatigue failure, calculation of the ...
Yuriy Khomyak +4 more
doaj +1 more source
Momentum of the Electromagnetic Field in Transparent Dielectric Media
, 2012 We present arguments in favor of the proposition that the momentum of light inside a transparent dielectric medium is the arithmetic average of the Minkowski and Abraham momenta.
Mansuripur, Masud
core +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Scientific Reports, 2022 Soil liquefaction is one of the most detrimental forms of earthquake-induced ground failure that can result in catastrophic damage to engineering structures.
Jungang Liu, Geng Chen
doaj +1 more source
Calculus and Materials for Stirling Engines Bolter and Regenator [PDF]
, 2015 The performances of the Stirling engine are affected by the convection coefficient and the ldquoXrdquo factor and not only by the variation of the gas quantity from the cylinder with the medium pressure variation.
Florea, T. (Traian) +2 more
core
Non-equilibrium dissociating nitrogen flow over spheres and circular cylinders [PDF]
, 1972 Theoretical results based on the methods of Freeman and Garr & Marrone show that the stand-off distance and flow pattern of non-equilibrium dissociating flow of nitrogen over the front part of a blunt body can be correlated in terms of a single reaction ...
Hornung, H. G.
core +2 more sources