Quantum transport equations for Bose systems taking into account nonlinear hydrodynamic processes
sing the method of nonequilibrium statistical operator by Zubarev, an approach is proposed for the description of kinetics which takes into account the nonlinear hydrodynamic fluctuations for a quantum Bose system. Non-equilibrium statistical operator is
P.A. Hlushak, M.V. Tokarchuk
doaj +1 more source
Evaluation of the Electron Contamination in Photon Therapy Using BEAMnrc Code
Background: Today, high-energy photon beams are widely used in the treatment of all types of cancers. However, the production of electrons as contaminants in the photon pathway provides the necessity for research in this field.
Nahid Chegeni+3 more
doaj +1 more source
First-principles study on various point defects formed by hydrogen and helium atoms in tungsten [PDF]
The different point defects formed by two hydrogen atoms or two helium atoms in tungsten were investigated through first-principles calculation. The energetically favorable site for a hydrogen atom is tetrahedral interstitial site while substitutional site is the most preferred site for a helium atom.
arxiv +1 more source
Economics, Helium, and the U.S. Federal Helium Reserve: Summary and Outlook
In 2017, disruptions in the global supply of helium reminded consumers, distributors, and policy makers that the global helium supply chain lacks flexibility, and that attempts to increase production from the U.S. Federal Helium Reserve (the FHR) may not
Steven T. Anderson
semanticscholar +1 more source
Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders
This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo+8 more
wiley +1 more source
Feasibility and key technologies for the construction of salt cavern helium storage in China
[Objective] Due to the scarcity of helium resources, insufficient production, high external dependence and single source, the security situation of helium resources in China is very severe.
ZHOU Zhaoheng+3 more
doaj +1 more source
The Resource Potential and Development Prospect of Helium in Changqing Gas Field
Helium, a rare gas widely applied in high-tech fields, is a significant strategic resource in China. The foreign-trade dependence ratio of helium in China is 95%. The work reviewed the applications and market analysis of helium and reservoir modeling and
Dahai Wang+6 more
doaj +1 more source
Propulsion apparatus and method using boil-off gas from a cryogenic liquid [PDF]
A propulsion system and method are disclosed for controlling the attitude and drag of a space vehicle. A helium dewar contains liquid helium which cools an experiment package.
Blount, D. H.
core +1 more source
Knowledge of the precise rigidity dependence of the helium flux is important in understanding the origin, acceleration, and propagation of cosmic rays. A precise measurement of the helium flux in primary cosmic rays with rigidity (momentum/charge) from 1.
M. Aguilar+299 more
semanticscholar +1 more source
Universal Superconductivity in FeTe and All‐Iron‐Based Ferromagnetic Superconductor Heterostructures
The first all‐iron‐based ferromagnetic superconductor heterostructures with high‐temperature superconductivity and strong ferromagnetism aredemonstrated. From this, it is discovered that FeTe becomes universallysuperconducting with a minute level of cationic impurities through doping ordiffusion from neighboring layers, suggesting its ground state can ...
Hee Taek Yi+12 more
wiley +1 more source