Results 131 to 140 of about 313,034 (335)

Helium Leak Measurements Using CO2 as a Carrier [PDF]

Detection delay defects are omitted by using helium mass spectrometer leak detector combined with several known procedures. Technique combines carbon dioxide purging, cryogenic separating helium accumulation, and use of carbon dioxide as carrier ...
Camarillo, R. G., Moore, B. C.
core   +1 more source

Ultra‐Sensitive Dual‐Resonator Graphene Pressure Sensor with Temperature Self‐Compensation

Advanced Science, EarlyView.
This work presents a graphene resonator sensor based on a dual‐cavity interferometric scheme that achieves high sensitivity to pressure variations. Its lightweight and compact design enables drone‐based field experiments, underscoring the promise of graphene optomechanical devices for portable and scalable sensing applications.
Zhen Wan, Cheng Li, Zhengwei Wu, Pengcheng Zhao, Yang Liu, Wanting Li, Shangchun Fan, Wei Jin   +7 more
wiley   +1 more source

Optimizing Helium Exploration: Noble Gas Isotopes as Probes for Migration–Enrichment Processes

Energies
Helium, as a strategic resource with broad applications in industry and science, has drawn increasing global attention due to its scarcity and non-renewable nature.
Chunhui Cao, Liwu Li, Zhongping Li, Huanhuan Zhao   +3 more
doaj   +1 more source

CASCADE - a multi-layer Boron-10 neutron detection system

, 2016
The globally increased demand for helium-3 along with the limited availability of this gas calls for the development of alternative technologies for the large ESS instrumentation pool.
Allmendinger, F., Klein, M., Köhli, M., Martin, N., Perrevoort, A. -K., Schmidt, C. J., Schmidt, U., Schröder, T.   +7 more
core   +1 more source

Unveiling the Formation and Evolution of the Cathode–Electrolyte Interphase in Lithium–Sulfur Batteries

Advanced Science, EarlyView.
By integrating electrochemical impedance spectroscopy (EIS), background‐subtracted in situ Fourier‐transform infrared (FTIR) spectroscopy, and X‐ray absorption spectroscopy (XAS), this work reveals electrolyte decomposition and the reduced species involved in forming the cathode–electrolyte interphase (CEI) in lithium–sulfur batteries (LSBs), offering ...
Murilo Machado Amaral, Otavio Jovino Marques, André de Navarro de Miranda, Aline Carlos Oliveira, Gustavo Doubek, Gurpreet Singh, Hudson Zanin, Renato Garcia Freitas, Johanna Nelson Weker, Pablo Sebastian Fernandez   +9 more
wiley   +1 more source

Characteristics of effective helium source rocks and releasing mechanism of helium

Journal of Natural Gas Geoscience
Different helium source rocks exhibit varying characteristics, including differences in the content and occurrence states of precursor elements such as uranium (U) and thorium (Th).
Xiaofeng Wang, Dong Zhao, Dongdong Zhang, Xiaofu Li, Keyu Chen, Wenhui Liu   +5 more
doaj   +1 more source

Interconnected Hierarchically Porous Graphene‐Based Membrane Electrode for High‐Power and Long‐Cycle Lithium–Oxygen Battery

Advanced Science, EarlyView.
Lithium–oxygen batteries face an energy‐power trade‐off due to sluggish O2 transport and pore clogging by Li2O2. Simulations show that reducing tortuosity via interconnected macropores enhances oxygen mobility. A freestanding graphene electrode having interconnected macropores with low tortuosity delivers >2500 mAh g−1, stable lean‐electrolyte cycling,
Arghya Dutta, Takashi Kameda, Taiga Ozawa, Anna Myojin, Minako Nishioka, Wei Yu, Hirotomo Nishihara, Shoichi Matsuda   +7 more
wiley   +1 more source

Geological conditions and enrichment patterns of helium reservoir in Yancheng Formation, Huangqiao area, Subei Basin

Shiyou shiyan dizhi
The helium (He) content in the natural gas of the Neogene Yancheng Formation in the Huangqiao area of Subei Basin ranges from 1.05% to 1.40%, which is generally higher than the industrial grade, indicating a crust and mantle composite type of helium ...
Hongsheng YAO, Xingming CHEN, Tao ZHOU
doaj   +1 more source

Nucleation, solvation and boiling of helium excimer clusters

, 2015
Helium excimers generated by a corona discharge were investigated in the gas and normal liquid phases of helium as a function of temperature and pressure between 3.8 and 5.0 K and 0.2 and 5.6 bar.
Aitken, Frederic, Bonifaci, Nelly, Luna, Luis G. Mendoza, Siltagh, Nagham M., von Haeften, Klaus, Watkins, Mark J.   +5 more
core  

Computer program for high pressure real gas effects [PDF]

, 1969
Computer program obtains the real-gas isentropic flow functions and thermodynamic properties of gases for which the equation of state is known. The program uses FORTRAN 4 subroutines which were designed for calculations of nitrogen and helium.
Johnson, R. C.
core   +1 more source