De Haas–Van Alphen experiments under extreme conditions of low temperature, high field and high pressure, for high-quality cerium and uranium compounds

2003 ◽  
Vol 262 (3) ◽  
pp. 399-406 ◽  
Author(s):  
R. Settai ◽  
S. Araki ◽  
H. Shishido ◽  
Y. Inada ◽  
Y. Haga ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
High Field ◽  
Extreme Conditions ◽  
High Quality ◽  
Uranium Compounds

Realizing Predicted Crystal Structures at Extreme Conditions:  The Low-Temperature and High-Pressure Crystal Structures of 2-Chlorophenol and 4-Fluorophenol

2005 ◽  
Vol 5 (3) ◽  
pp. 1055-1071 ◽  
Author(s):  
Iain D. H. Oswald ◽  
David R. Allan ◽  
Graeme M. Day ◽  
W. D. Samuel Motherwell ◽  
Simon Parsons
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Crystal Structures ◽  
Extreme Conditions

AISI TYPE P20

Alloy Digest ◽  
1982 ◽  
Vol 31 (1) ◽  
Keyword(s):  
Low Temperature ◽  
Tool Steel ◽  
Die Casting ◽  
Heat Treating ◽  
High Quality ◽  
Medium Carbon ◽  
Casting Alloys ◽  
Steel Mills ◽  
Aisi Type ◽  
Quality Tool

Abstract AISI Type P20 is a chromium-molybdenum tool steel of medium carbon content. It usually is supplied in the prehardened condition (about 300 Brinell) so that the cavity can be machined and the mold or die placed directly in service; however, for some uses further treatments are employed. It is produced to high-quality tool-steel standards to permit a high luster to be achieved on the surface of the polished die cavity. P20 is used for molds for plastics and for die-casting dies for zinc and other low-temperature casting alloys. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: TS-393. Producer or source: Tool steel mills.

Low-Temperature Hydrogenation of Mg-Ni-Nb2O5 Alloy Processed by High-Pressure Torsion

2021 ◽  
pp. 160309
Author(s):  
M. Osorio-García ◽  
K. Suárez-Alcántara ◽  
Y. Todaka ◽  
A. Tejeda-Ochoa ◽  
M. Herrera Ramírez ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
High Pressure Torsion

Continuous low-temperature spray drying approach for efficient production of high quality native rice starch

2021 ◽  
pp. 1-16
Author(s):  
Jamie Boon Jun Tay ◽  
Xinying Chua ◽  
Cailing Ang ◽  
Kelvin Kim Tha Goh ◽  
Gomathy Sandhya Subramanian ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spray Drying ◽  
Rice Starch ◽  
Efficient Production ◽  
High Quality

Study of high-pressure air jet controlled compression ignition with compound thermodynamic cycle for combustion and emission formation process

2020 ◽  
pp. 146808742096933
Author(s):  
Xiangyu Meng ◽  
Sicheng Liu ◽  
Jingchen Cui ◽  
Jiangping Tian ◽  
Wuqiang Long ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Low Temperature ◽  
Formation Process ◽  
Combustion Process ◽  
Thermodynamic Cycle ◽  
Compression Ignition ◽  
Temperature Reaction ◽  
Air Jet ◽  
High Temperature Reaction

A novel method called high-pressure air (HPA) jet controlled compression ignition (JCCI) based on the compound thermodynamic cycle was investigated in this work. The combustion process of premixed mixture can be controlled flexibly by the high-pressure air jet compression, and it characterizes the intensified low-temperature reaction and two-stage high-temperature reaction. The three-dimensional (3D) computational fluid dynamics (CFD) numerical simulation was employed to study the emission formation process and mechanism, and the effects of high-pressure air jet temperature and duration on emissions were also investigated. The simulation results showed that the NOx formation is mainly affected by the first-stage high-temperature reaction due to the higher reaction temperature. Overall, this combustion mode can obtain ultra-low NOx emission. The second-stage high-temperature reaction plays an important role in the CO and THC formation caused by the mixing effect of the high-pressure air and original in-cylinder mixture. The increasing air jet temperature leads to a larger high-temperature in-cylinder region and more fuel in the first-stage reaction, and therefore resulting in higher NOx emission. However, the increasing air jet temperature can significantly reduce the CO and THC emissions. For the air jet duration comparisons, both too short and too long air jet durations could induce higher NOx emission. A higher air jet duration would result in higher CO emission due to the more high-pressure air jet with relatively low temperature.

Sign in / Sign up

Export Citation Format

Share Document