Results 91 to 100 of about 443,029 (234)

Recent Advances in the Quest for a New Insulation Gas with a Low Impact on the Environment to Replace Sulfur Hexafluoride (SF6) Gas in High-Voltage Power Network Applications

open access: yes, 2017
The growing environmental challenge of electrical energy systems has prompted a substantial increase in renewable energy generation. Such generation systems allow for significant reduction of CO2 emissions compared with a traditional fossil fuel plant ...
A. Beroual, A. Haddad
semanticscholar   +1 more source

Off-surface infrared flow visualization [PDF]

open access: yes, 1993
A method for visualizing off-surface flows is provided. The method consists of releasing a gas with infrared absorbing and emitting characteristics into a fluid flow and imaging the flow with an infrared imaging system.
Alderfer, David W.   +3 more
core   +1 more source

ppb-Level SO2 Photoacoustic Sensor for SF6 Decomposition Analysis Utilizing a High-Power UV Laser with a Power Normalization Method

open access: yesSensors
A highly sensitive sulfur dioxide (SO2) photoacoustic gas sensor was developed for the sulfur hexafluoride (SF6) decomposition detection in electric power systems by using a novel 266 nm low-cost high-power solid-state pulse laser and a high Q-factor ...
Xiu Yang   +7 more
doaj   +1 more source

Mitigating Sulfur Hexafluoride (SF6) Emission from Electrical Equipment in China

open access: yesSustainability, 2018
Sulfur hexafluoride (SF6) is a powerful greenhouse gas with high global warming potential. Future growth in SF6 use will be driven mainly by increasing demand for electricity and associated infrastructure in developing countries.
Sheng Zhou, F. Teng, Qing Tong
semanticscholar   +1 more source

Efficacy of pneumatic displacement with 40-degree downward gaze positioning for treatment of submacular hemorrhage: report of two cases

open access: yesClinical Ophthalmology, 2012
Masami Nakajima, Hiroshi Aso, Kohki NakayasuDepartment of Ophthalmology, Division of Visual Science, Nihon University School of Medicine, Tokyo, JapanBackground: Two retrospective case reports are described showing the efficacy of pneumatic displacement ...
Nakajima M, Aso H, Nakayasu K
doaj  

Breakdown characteristics of oxygen and nitrogen gasmixture as substitute gases of sulfur hexafluoride

open access: yesMajlesi Journal of Electrical Engineering
Sulfur hexafluoride (SF6) is extensively used as an essential insulating material in high-voltage industries due to its outstanding electrical characteristics.
Norsuhada Zainal Abidin   +2 more
doaj   +1 more source

Contamination of the space station environment by vented chemicals [PDF]

open access: yes
Gaseous materials vented from materials and life science experiments on the Space Station may have noticeable effects on the optical or plasma environment.
Bernhardt, Paul A.
core   +1 more source

Vaporization and decomposition kinetics of candidate re-entry blackout suppressants in low-pressure flames [PDF]

open access: yes
Measurement of thermal accommodation coefficients between liquids and high temperature gases in low pressure reentry communications blackout ...
Kurzius, S. C., Raab, F. H.
core   +1 more source

Development Status and Future Prospects of Eco-Friendly Insulating Gases in New Power Systems [PDF]

open access: yesE3S Web of Conferences
Sulfur hexafluoride (SF6), widely used as an insulating gas in power systems due to its excellent insulation and arc-quenching properties, has significant greenhouse effects, posing constraints on the development of new power systems.
Xu Zhengjie, Liu Wei, Hang Chen, Cao Jun
doaj   +1 more source

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