Results 21 to 30 of about 1,512,277 (335)

Stellar wind bubbles around WR and [WR] stars [PDF]

open access: yes, 2002
We study the dynamics of stellar wind bubbles around hydrogen-deficient stars using numerical simulations with time- and ion dependent cooling. We consider two types of hydrogen-deficient stars, massive WR stars, producing Ring Nebulae, and low mass [WR]
Abbott   +37 more
core   +3 more sources

Low Cycle Fatigue Crack Damage Behavior of TC21 Titanium Alloy with Basketweave Microstructure

open access: yesCrystals, 2022
Low cycle fatigue (LCF) crack initiation, propagation and damage behaviors of TC21 alloy with basketweave microstructure were investigated. The process of LCF damage was observed by a long-focus optical microscopic imaging system, and fatigue crack ...
Baohua Nie   +6 more
doaj   +1 more source

Carbon Footprint Analysis in Hydrogen Production Technology from Coke Oven Gas with Life Cycle Approach: Case Studies for Eight Companies [PDF]

open access: yesE3S Web of Conferences
This study constructed a carbon footprint analysis model for hydrogen production technology from coke oven gas (COG), based on eight COG-to-hydrogen companies as case studies.
Xiao Chenjiang, Li Wenqing, Wang Ce
doaj   +1 more source

Application of Unfolding Methods on Thermal Neutron Data Measured with a Single-Chopper Time-of-Flight Setup [PDF]

open access: yesEPJ Web of Conferences
As part of the NAUTILUS research project, the thermal neutron spectrum of the Training Reactor AKR-2 of the Dresden University of Technology is being determined by means of the time-of-flight technique.
Melzer Vincent   +5 more
doaj   +1 more source

The dependence of the hydrogen sorption capacity of single-walled carbon nanotubes on the concentration of catalyst [PDF]

open access: yes, 2009
The adsorption of hydrogen on single-walled carbon nanotubes was measured using micro-gravimetric nitrogen and hydrogen adsorption isotherms at 77 K for gas pressures of up to 1 bar (nitrogen) and 12 bar (hydrogen).
Morrison, Ian   +4 more
core   +2 more sources

Bifunctional Characteristics of Al2O3 supported Ni in the HI Decomposition of Sulfur-Iodine Process

open access: yesMATEC Web of Conferences, 2016
The Sulfur-Iodine process is in need of catalytic reactor for HI decomposition because the HI decomposition reaction rate is very slow. Nickel as an alternative catalyst for platinum was investigated in this study.
Park Chu-Sik   +7 more
doaj   +1 more source

HYDROGEN ENERGY

open access: yes, 2023
this article is written about Hydrogen, the quality of hydrogen fuel with pure oxygen, not to be confused with atmospheric gases, being a carbon fuel, carbon dioxide emissions, etc.
openaire   +2 more sources

Numerical analysis of vapor dispersion from compressed hydrogen (H2) storage vessels [PDF]

open access: yesE3S Web of Conferences
The rising demand for hydrogen fuel, driven by the emergence of fuel cell electric vehicles, underscores the need to optimize refueling station efficiency and affordability while prioritizing safety and performance.
Kasmani Rafiziana Md.   +2 more
doaj   +1 more source

Semiclassical two-step model for ionization of hydrogen molecule by strong laser field [PDF]

open access: yes, 2018
We extend the semiclassical two-step model for strong-field ionization that describes quantum interference and accounts for the Coulomb potential beyond the semiclassical perturbation theory to the hydrogen molecule.
Lein, M.   +2 more
core   +2 more sources

Low Cycle Fatigue Behavior of TC21 Titanium Alloy with Bi-Lamellar Basketweave Microstructure

open access: yesCrystals, 2022
Low cycle fatigue (LCF) behaviors of TC21 alloy with a bi-lamellar basketweave microstructure were investigated in this paper. The strain fatigue tests were carried out at total strain amplitudes of 1.4% to 2.0%.
Baohua Nie   +5 more
doaj   +1 more source

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