Results 111 to 120 of about 3,155,393 (333)
Advanced Engineering Materials, EarlyView.Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec +6 more
wiley +1 more source
Subatmospheric Brayton-cycle Engine Program Review [PDF]
, 1984 A solar energy powered electrical generator utilizing a Subatmospheric Brayton cycle engine is examined. The generator consists of a subatmospheric, Brayton-cycle engine and a permanent magnet (PM) alternator.
Johnson, R. L.
core +1 more source
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
Low heat transfer oxidizer heat exchanger design and analysis [PDF]
The RL10-IIB engine, a derivative of the RLIO, is capable of multi-mode thrust operation. This engine operates at two low thrust levels: tank head idle (THI), which is approximately 1 to 2 percent of full thrust, and pumped idle (PI), which is 10 percent
Kanic, P. G. +2 more
core +1 more source
Improving the Efficiency of an Ideal Heat Engine: The Quantum Afterburner
, 2001 By using a laser and maser in tandem, it is possible to obtain laser action in the hot exhaust gases involved in heat engine operation. Such a "quantum afterburner" involves the internal quantum states of working gas atoms or molecules as well as the ...
D Meshede +8 more
core +1 more source
Advanced Engineering Materials, EarlyView.Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley +1 more source
Automotive Nuclear-Heat Engines and Associated High-Temperature Materials [PDF]
, 1957 Frank Leroy Schwartz, Harold A. Ohlgren
openalex +2 more sources
Quantum Otto heat engine with Pöschl-Teller potential in contact with coherent thermal bath. [PDF]
Sci Rep, 2023 Abasabadi SH +2 more
europepmc +1 more source
Experimentally-determined external heat loss of automotive gas turbine engine [PDF]
An external heat balance was conducted on a 150 HP two-shaft automotive gas turbine engine. The engine was enclosed in a calorimeter box and the temperature change of cooling air passing through the box was measured.
Meng, P. R., Wulf, R. F.
core +1 more source