Results 91 to 100 of about 79,818 (287)

Modifications to Langley 0.3-m TCT adaptive wall software for heavy gas test medium, phase 1 studies [PDF]

open access: yes
The scheme for two-dimensional wall adaptation with sulfur hexafluoride (SF6) as test gas in the NASA Langley Research Center 0.3-m Transonic Cryogenic Tunnel (0.3-m TCT) is presented.
Murthy, A. V.
core   +1 more source

Can hail and rain nucleate cloud droplets?

open access: yes, 2017
We present results from moist convection in a mixture of pressurized sulfur hexa-flouride (liquid and vapor) and helium (gas) to model the wet and dry components of the earth's atmosphere.
Bodenschatz, Eberhard   +4 more
core   +1 more source

Analysis of By-Products of N2-SF6 Gas Mixtures Sparked under Inhomogenous Field Conditions [PDF]

open access: yes, 2004
A vast data on formation of by-products due to arc and spark decomposition of SF6 is available in literature [1–10]. But experimental work relating to N2 - SF6 gas mixtures is limited. In view of increasing application of gas mixtures, it is essential to
AM Casanovas   +6 more
core   +2 more sources

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

Exploring the Interrelationships Among Supply Chain Emissions, Financial Performance, Market Value, and Board Sustainability: An Exploration of the European Landscape

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT National and supranational institutions are establishing emission trading systems and control schemes in an attempt to manage stakeholders' willingness to engage with regulatory systems and reduce greenhouse gas emissions (GHG). Nonetheless, despite the national and supranational focus on carbon neutrality, little research has been centered ...
Daniele Giordino   +3 more
wiley   +1 more source

以SF6为背景气体的SF6气体分解特征组分标准物质研制

open access: yesGaoya dianqi, 2016
利用SF6分解组分对GIS绝缘状态进行诊断,必须解决SF6分解特征组分的定性和定量检测的关键技术难题,这直接关系到对设备故障性质和程度判断的准确性。文中采用称量法,研究以SF6为背景气的气体标准物质的制备过程与方法,成功研制了CO2/SF6、CF4/SF6、SOF2/SF6、SO2F2/SF64种标准气体物质,解决了SF6分解特征组分标准气体物质的存储问题,考察了4种气体标准物质的一致性、压力稳定性以及长期稳定性。结果表明:CO2/SF6、CF4/SF6、SOF2/SF6和SO2F2 ...
苗玉龙   +4 more
doaj  

Testing the neutrality of matter by acoustic means in a spherical resonator

open access: yes, 2011
New measurements to test the neutrality of matter by acoustic means are reported. The apparatus is based on a spherical capacitor filled with gaseous SF$_6$ excited by an oscillating electric field.
A. Piccard   +16 more
core   +1 more source

In-situ measurements of oxygen, carbon monoxide and greenhouse gases from Ochsenkopf tall tower in Germany [PDF]

open access: yes, 2009
We present 2.5 years (from June 2006 to December 2008) of in-situ measurements of CO2, O2, CH4, CO, N2O and SF6 mixing ratios sampled from 23, 90 and 163m above ground on the Ochsenkopf tower in the Fichtelgebirge range, Germany (50?0104900 N, 11?4803000
Gloor, E   +7 more
core   +2 more sources

Micro‐Transfer Printed Continuous‐Wave and Mode‐Locked Laser Integration at 800 nm on a Silicon Nitride Platform

open access: yesLaser &Photonics Reviews, EarlyView.
A heterogeneous III‐V/SiN platform for lasers at 800 nm is realized using the micro‐transfer printing method. Efficient GaAs gain sections are directly butt‐coupled to SiN waveguides, enabling continuous‐wave and mode‐locked extended‐cavity lasers. The mode‐locked lasers generate highly stable pulse trains with repetition rates up to 9.2 GHz and a ...
Max Kiewiet   +13 more
wiley   +1 more source

Thin Fluoride Insulators for Improved 2D Transistors: From Deposition Methods to Recent Applications

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
2D materials hold significant promise for next‐generation electronic and optoelectronic devices, but suitable gate dielectrics are still a challenge. Fluoride insulators, offering inert, dangling‐bond‐free surfaces, have recently emerged as strong candidates. This review covers recent publications on high‐quality fluoride thin‐film deposition and their
Behzad Dadashnia   +3 more
wiley   +1 more source

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