Results 21 to 30 of about 81,247 (279)

Determination of Drainage Effective Radius of CO2 Phase Transition Fracturing Based on Time-source Method

open access: yesMeikuang Anquan, 2020
There is no uniform standard for determining the drainage effective radius of CO2 phase transition fracturing in view of the fact, we analyze the traditional measurement for drainage effective radius, clarify definition of drainage radius.
SUN Zhuoyue, YANG Dong, PEI Yue, SUN Liuwei, MA Xiaomin
doaj   +1 more source

Research progress on photoacoustic SF6 decomposition gas sensor in gas-insulated switchgear

open access: yesJournal of Applied Physics, 2022
In the power industry, sulfur hexafluoride (SF6) as an insulating gas is widely used in gas-insulated switchgears (GISs). Owing to the latent inner insulation defects of GIS, various SF6 gas decompositions are generated in the process of partial ...
Xukun Yin   +7 more
semanticscholar   +1 more source

Compact QEPAS humidity sensor in SF6 buffer gas for high-voltage gas power systems

open access: yesPhotoacoustics, 2021
In SF6 insulated high-voltage gas power systems, H2O is the most problematic impurity which not only decreases insulation performance but also creates an acidic atmosphere that promotes corrosion. Corrosion damages electrical equipment and leads to leaks,
Xukun Yin   +8 more
semanticscholar   +1 more source

Outcomes of air versus sulfur hexafluoride tamponade in primary rhegmatogenous retinal detachment in phakic eyes

open access: yesJournal of the Egyptian Ophthalmological Society, 2023
Purpose To evaluate the outcomes of using air versus sulfur hexafluoride (SF6) gas tamponade in management of primary rhegmatogenous retinal detachment (RRD). Study design Retrospective case-series comparative study.
Ahmed A Tabl   +3 more
doaj   +1 more source

Host Range Expansion of Shigella Phage Sf6 Evolves through Point Mutations in the Tailspike

open access: yesJournal of Virology, 2022
Viruses depend on host cells to propagate themselves. In mixed populations and communities of host cells, finding these susceptible host cells may have to be balanced with avoiding nonhost cells.
Sundharraman Subramanian   +3 more
semanticscholar   +1 more source

Improving measurements of SF6 for the study of atmospheric transport and emissions [PDF]

open access: yes, 2011
Sulfur hexafluoride (SF6) is a potent greenhouse gas and useful atmospheric tracer. Measurements of SF6 on global and regional scales are necessary to estimate emissions and to verify or examine the performance of atmospheric transport models.
Butler, J. H.   +8 more
core   +3 more sources

The black silicon method II: the effect of mask material and loading on the reactive ion etching of deep silicon trenches [PDF]

open access: yes, 1994
Very deep trenches in Si with smooth controllable profiles are etched using a fluorine-based Reactive Ion Etcher(RIE). The effect of various mask materials and loading on the profile is examined using the Black Silicon Method. It is found that most metal
Boer, Meint de   +4 more
core   +8 more sources

High-resolution cryo-EM structure of the Shigella virus Sf6 genome delivery tail machine

open access: yesScience Advances, 2022
Sf6 is a bacterial virus that infects the human pathogen Shigella flexneri. Here, we describe the cryo–electron microscopy structure of the Sf6 tail machine before DNA ejection, which we determined at a 2.7-angstrom resolution.
Fenglin Li   +5 more
semanticscholar   +1 more source

Research on Environmental Protection Treatment for Ex-Service SF6 Adsorbent

open access: yesIEEE Access, 2020
SF6 adsorbents absorb many toxic SF6 decomposition products, such as SOF2, SO2F2, and H2S. Ex-service SF6 adsorbents that did not undergo environmentally friendly processing will seriously harm the environment.
Gang Wei   +4 more
doaj   +1 more source

X-ray measurements of growth rates at a gas interface accelerated by shock waves [PDF]

open access: yes, 1996
A new experimental technique to measure the density of a high atomic number gas at a shock-accelerated interface has been developed and demonstrated.
Bonazza, R., Sturtevant, B.
core   +1 more source

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