Results 31 to 40 of about 22,477 (237)

Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003 [PDF]

, 2005
During several balloon flights inside the Arctic polar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere.
Levin, Ingeborg, M. Pirre, Wetzel, G., I. Levin, T. Wetter, Levin, I., Schmidt, Ulrich (Prof. Dr.), Wetter, Thomas, Oelhaf, Hermann, Bönisch, Harald, Engel, A., Schmidt, U., Huret, Nathalie, Bönisch, H., N. Huret, Pirre, Michel, Oelhaf, H., H. Oelhaf, Schmidt, Ulrich, Reddmann, Thomas, Möbius, Tanja, K. Grunow, G. Wetzel, U. Schmidt, Wetter, T., Engel, Andreas, Haase, Hans-Peter, Grunow, Katja, H. Bönisch, A. Engel, T. Reddmann, Reddmann, T., H.-P. Haase, Möbius, T., Haase, H.-P., Wetzel, Gerald, Grunow, K., T. Möbius   +37 more
core   +2 more sources

Study on the thermal decomposition reaction process and kinetics of SF6 and tungsten [PDF]

E3S Web of Conferences, 2023
The thermal reaction of SF6 with tungsten powder was investigated by thermogravimetry (TG) and differential scanning calorimetry (DSC), combined with the characterization of solid decomposition products of SF6 and tungsten by SEM, EDS, XPS and Raman ...
Xu Mengyuan, Lv Houhua, Liu Yunfang, Yang Ren, Han Yanhua, Xu Liuyu, Li Xu, Li Jiuhong, Zhang Xiao, Jian Yajun, Zhang Weiqiang   +10 more
doaj   +1 more source

Inversion of long-lived trace gas emissions using combined Eulerian and Lagrangian chemical transport models [PDF]

, 2011
Supplement related to this article is available online at: http://www.atmos-chem-phys.net/11/9887/2011/acp-11-9887-2011-supplement.zip.We present a method for estimating emissions of long-lived trace gases from a sparse global network of high-frequency ...
M. Rigby, Manning, Alistair J., Prinn, Ronald G., Rigby, Matthew, R. G. Prinn, Prinn, R. G., Rigby, M., Manning, A. J., A. J. Manning   +8 more
core   +2 more sources

Metal–Metal Cooperative C─F and S─F Bond Cleavage by Low‐Valent Tetracobalt Clusters and Water‐Assisted Fluoroarene Hydrodefluorination

Angewandte Chemie, EarlyView.
Self‐assembled tetrahedral CoI4 clusters supported by simple bipyridine‐based ligands undergo core rearrangement to cleave S─F and C(sp2)─F bond, forming fluoride‐bridged tetracobalt(II)‐oxo clusters, while exposure of cobalt(I) clusters to molecular oxygen yields cubane‐type cobalt(III) oxo clusters.
Hoan M. Dinh, Pavan K. Vardhanapu, Robert R. Fayzullin, Eugene Khaskin, Julia R. Khusnutdinova   +4 more
wiley   +2 more sources

Research progress on SF6 emission reduction methods and separation recovery

工程科学学报
A potent greenhouse gas, SF6 has a global warming potential far exceeding that of CO2. Further, its stability in the atmosphere renders it a persistent threat to the climate.
Weihua LIU, Ruikai ZHAO, Chunxiao GAO, Jinyi WU, Shuai DENG, Li ZHAO   +5 more
doaj   +1 more source

Mechanism of Formation of SF6 Decomposition Gas Products and its Identification by GC-MS and Electrochemical methods: A mini Review

International Journal of Electrochemical Science, 2015
The SF6 is commonly used as an insulating gas in different applications; however the SF6 can be easily exploded into different decomposition gas products when subjected to electrical discharge, such as electric arc, spark or corona.
Chih-Hsuan Liu, Selvakumar Palanisamy, Shen-Ming Chen, Pei-Shan Wu, Leehter Yao, Bih-Show Lou   +5 more
doaj   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

Advanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena, Lucia Castillo Ransanz, Ruben H. Guis, Giulia Bergamaschi, Nanne J. Paauw, Urs Staufer, Vivi M. Heine, Angelo Accardo   +7 more
wiley   +1 more source

Atmospheric observation-based global SF6 emissions - comparison of top-down and bottom-up estimates [PDF]

, 2009
Emissions of sulphur hexafluoride (SF6), one of the strongest greenhouse gases on a per molecule basis, are targeted to be collectively reduced under the Kyoto Protocol.
Levin, Ingeborg, Neininger, Bruno, Ilmberger, Johann, Langenfelds, Ray L., Rohden, Christoph von, Engel, Andreas, Cuevas, Emilio, Steele, L. Paul, Worthy, Douglas E., Naegler, Tobias, Weller, Rolf, Heinz, Renate, Zimov, Sergej A., Osusko, Daniel   +13 more
core  

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

Advanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Experimental Study on Performance of SF6+N2 Mixed Gas Insulation

MATEC Web of Conferences, 2016
This paper designed and constructed a 126kV GIS partial discharge test platform, performed frequency breakdown tests and lighting impulse tests at temperature of -30~20℃to SF6/N2 gas mixture.
Lu Gang, Su Zhen Xi, Xu Ou, Zhang Liang, Lan Gong Yu, Liu Yang, Zhang Hong Da   +6 more
doaj   +1 more source