Results 131 to 140 of about 292,669 (354)

Hydrodynamic Properties of High Temperature Natural Circulating Helium Cooling Loop

Journal of Mechanical Engineering, 2017
The paper deals with the hydrodynamic properties, i.e. the consumption of mechanical energy expressed by pressure drops within a helium loop intended for the testing of decay heat removal (DHR) from the model of a gas-cooled fast reactor (GFR).
Dzianik František, Gužela Štefan
doaj   +1 more source

Emission Spectrochemical Analysis of Soft Samples Including Raw Fish by Employing Laser-Induced Breakdown Spectroscopy with a Subtarget at Low-Pressure Helium Gas. [PDF]

ACS Omega, 2020
Marpaung AM, Abdulmadjid SN, Ramli M, Idris N, Khumaeni A, Budi WS, Suyanto H, Suliyanti MM, Karnadi I, Tanra I, Pardede M, Jobiliong E, Hedwig R, Lie ZS, Kurniawan KH, Kagawa K.   +15 more
europepmc   +1 more source

6D Muon Ionization Cooling with an Inverse Cyclotron

, 2005
A large admittance sector cyclotron filled with LiH wedges surrounded by helium or hydrogen gas is explored. Muons are cooled as they spiral adiabatically into a central swarm. As momentum approaches zero, the momentum spread also approaches zero.
Bracker, S. B., Cremaldi, L. M., Godang, R., Palmer, R. B., Summers, D. J.   +4 more
core   +2 more sources

Radiation Hardened Infrared Photodetectors Based on a Narrow Bandgap Conjugated Polymer Semiconductor

Advanced Electronic Materials, EarlyView.
A blackbody‐sensitive infrared photodetector comprised of an open‐shell conjugated polymer demonstrates high sensitivity without cooling and exceptional radiation hardness, surpassing inorganic compound semiconductor devices. This functionality, inherent to the polymer semiconductor, provides a new frontier for low‐cost, size, weight, and power space ...
Anthony R. Benasco, Chih‐Ting Liu, Bernie Rax, Giacomo Mariani, Steve McClure, Tyler Bills, Sanyukta Datta Gupta, Mohammad I. Vakil, Stefan Nikodemski, Jarrett H. Vella, Jason D. Azoulay   +10 more
wiley   +1 more source

Investigating the Influence Mechanism of Different Shielding Gas Types on Arc Characteristics and Weld Quality in TA2 Laser–Arc Hybrid Welding

Metals
The effective welding of a 6 mm thick TA2 pure titanium medium-thickness plate was achieved by laser–arc hybrid welding (LAHW) with helium–argon mixed shielding gas.
Haojie Zhang, Mingyao Shen, Xueqin Tian, Qunli Zhang, Zhijun Chen, Jianhua Yao   +5 more
doaj   +1 more source

A Review of Conventional and Emerging Process Technologies for the Recovery of Helium from Natural Gas

Adsorption Science & Technology, 2014
Helium is a unique gas with a wide range of important medical, scientific and industrial applications based on helium's extremely low boiling temperature, inert and non-flammable nature and small molecular size.
Thomas E. Rufford, K. Ida Chan, Stanley H. Huang, Eric F. May   +3 more
doaj   +1 more source

Accurate determination of the absolute 3He/4He ratio of a synthesized helium standard gas (Helium Standard of Japan, HESJ): Towards revision of the atmospheric 3He/4He ratio

, 2018
The helium standard of Japan, referred to as HESJ, is an inter-laboratory standard for the 3He/4He ratio. While the ratio of 3He and 4He of the HESJ was previously determined by a relative comparison to atmospheric helium, the absolute value of the 3He ...
Arimoto, Clarke, Davidson, Firestone, Hidetoshi Otono, Hideyuki Oide, Hirochika Sumino, Hoffman, Holland, Kell, Kenji Mishima, Kestin, Lupton, Lupton, Mabry, Mamyrin, Matsuda, Meija, Mumm, Nagakura, Naoki Nagakura, Niedermann, Ozima, Patrignani, Porcelli, Sano, Sano, Sano, Schlosser, Sei Ieki, Setina, Sumino, Takahito Yamada, Takaoka, Visser   +34 more
core   +1 more source

Measurement of Charge-Transfer Cross-Sections for 0.25- to 2.5-MeV Protons and Hydrogen Atoms Incident upon Hydrogen and Helium Gases [PDF]

, 1969
J. F. Williams
openalex   +1 more source

Programmable Cryogenic Memory in a Ge/GeSi Heterostructure

Advanced Electronic Materials, EarlyView.
A highly programmable memory function that occurs due to a charge tunneling and trapping mechanism is demonstrated in a Ge/GeSi heterostructure field‐effect thransistor. Over three orders‐of‐magnitude control over the conductance state of the device is achieved using either the device SET or the device RESET process, suggesting potential for ...
Adelaide Bradicich, Tzu‐Ming Lu
wiley   +1 more source

The coupling action of helium and nitrogen enrichment and its significance

Journal of Natural Gas Geoscience
Helium, a critical rare strategic resource primarily sourced from natural gas, is currently a subject of intense research regarding its enrichment processes within gas reservoirs.
Shengfei Qin, Guoxiao Zhou, Jiyuan Li, Gang Tao, Zizhuo Zhao   +4 more
doaj