Results 21 to 30 of about 19,893 (198)

Study on the enrichment of Sulfur Hexafluoride in the tmosphere through polyimide hollow fiber membrane

MATEC Web of Conferences, 2016
Sulfur hexafluoride is per molecule the strongest greenhouse gas know, the features have brought SF6 into the climatic impact discussion aimed at reduction of emissions.
Wang Weixian, Wang Yaoqin, Li Weiping, Yuan Yuan   +3 more
doaj   +1 more source

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

, 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., Dutton, G. S., Elkins, J. W., Hall, B. D., Hurst, D. F., Mondeel, D. J., Moore, F. L., Nance, J. D., Rigby, M.   +8 more
core   +3 more sources

Characterization of uncertainties in atmospheric trace gas inversions using hierarchical Bayesian methods [PDF]

, 2014
We present a hierarchical Bayesian method for atmospheric trace gas inversions. This method is used to estimate emissions of trace gases as well as "hyper-parameters" that characterize the probability density functions (PDFs) of the a priori emissions ...
Fraser, P. J., Ganesan, A. L., Harth, C. M., Kim, K. -R., Krummel, P. B., Li, S., Manning, A. J., Muehle, J., O'Doherty, S. J., Park, S., Prinn, R. G., Rigby, M., Salameh, P. K., Steele, L. P., Weiss, R. F., Zammit-Mangion, A.   +15 more
core   +4 more sources

Controlled decomposition of SF6 by electrochemical reduction

Beilstein Journal of Organic Chemistry, 2020
The electroreduction of SF6 is shown at ambient temperature in acetonitrile using an array of platinum microelectrodes to improve the electrical detection. Its half reduction potential occurs at −2.17 V vs Fc+/Fc.
Sébastien Bouvet, Bruce Pégot, Stéphane Sengmany, Erwan Le Gall, Eric Léonel, Anne-Marie Goncalves, Emmanuel Magnier   +6 more
doaj   +1 more source

Contrast-enhanced ultrasonography in hepatosplenic sarcoidosis [PDF]

, 2011
We report a case of a 38-year-old woman with atypical pain in the left lower hemi-abdomen. On abdominal B-mode ultrasonography the liver was normal; the spleen showed multiple subcentimetric hypoechoic nodules.
Afschrift, Marcel, STRYCKERS, MARIJKE, Van Belle, Simon, Verstraete, Koenraad, Voet, Dirk, Vogelaers, Dirk   +5 more
core   +2 more sources

External-Cavity Quantum Cascade Laser-Based Gas Sensor for Sulfur Hexafluoride Detection

Chemosensors, 2022
The external-cavity quantum cascade laser (ECQCL) is an ideal mid-infrared (MIR) spectral light source for determining large molecular-absorption spectral features with broad transition bands.
Xingyu Pan, Yifan Zhang, Jiayu Zeng, Minghui Zhang, Jingsong Li   +4 more
doaj   +1 more source

Simulation of PD Optical Signal Mechanism Based on FCT Algorithm

Shanghai Jiaotong Daxue xuebao, 2020
The flux-corrected transport (FCT) algorithm is used to simulate the two-dimensional planar needle-plate structure of the positive streamer model and the partial discharge process of tip defects. The variations in electron density, net charge density and
ZHANG Yue, QIAN Yong, LIU Wei, ZANG Yiming, SHENG Gehao, JIANG Xiuchen   +5 more
doaj   +1 more source

Dynamics of fluctuations in a fluid below the onset of Rayleigh-B\'enard convection [PDF]

, 2003
We present experimental data and their theoretical interpretation for the decay rates of temperature fluctuations in a thin layer of a fluid heated from below and confined between parallel horizontal plates.
A. Oberbeck, A. Schluter, A. Vailati, A. Vailati, A.K. Wyczalkowska, A.M. Pedersen, B.M. Law, B.M. Law, C. Allain, D. Brogioli, E. Bodenschatz, F.H. Busse, Guenter Ahlers, H. van Beijeren, H.L. Swinney, H.N.W. Lekkerkerker, J. Kestin, J. Lis, J. Oh, J. Wesfreid, J.B. Swift, J.H.B. Hoogland, J.M. Ortiz de Zárate, J.M. Ortiz de Zárate, J.M. Ortiz de Zárate, J.M. Ortiz de Zárate, J.P. Boon, J.R. de Bruyn, Jaechul Oh, Jan V. Sengers, José M. Ortiz de Zárate, K. Otnes, M. Wu, M.C. Cross, P. Lallemand, P.C. Hohenberg, P.N. Segrè, P.N. Segrè, R. Behringer, R. Graham, R. Schmitz, S.P. Trainoff, S.W. Morris, T. Strehlow, T.K. Lim, T.R. Kirkpatrick, T.R. Kirkpatrick, V. Zaitsev, V.V. Brunskii, Y. Sawada   +49 more
core   +3 more sources

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

Laboratory simulation of the formation of an ionospheric depletion using Keda Space Plasma EXperiment (KSPEX)

AIP Advances, 2017
In the work, the formation of an ionospheric depletion was simulated in a controlled laboratory plasma. The experiment was performed by releasing chemical substance sulfur hexafluoride (SF6) into the pure argon discharge plasma. Results indicate that the
Pengcheng Yu, Yu Liu, Jinxiang Cao, Jiuhou Lei, Zhongkai Zhang, Xiao Zhang   +5 more
doaj   +1 more source