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Preparation and characterization of Y3Al5O12:Ln(Ln=Eu,Ce) phosphor powders by ultrasonic atomization and co-precipitation process张丽,夏海平,邱杨,王冬杰,江浩川Key Laboratory of Photo-Electronic Materials,Ningbo... was prepared by an ultrasonic atomization and co-precipitation method using a mixture solution of ammonium hydroxide(NH3·H2O) and ammonium hydrogen carbonate(NH4HCO3) as precipitant.The as-prepared......
Gas sensitivity of polyaniline/SnO2 hybrids to volatile organic compounds GENG Li-na(耿丽娜) Department of Chemistry, Hebei Normal University, Shijiazhuang 050016, China Received 10 August 2009... mixing. Compared with single PAn and SnO2, the gas sensitivity of PAn/SnO2 materials to volatile organic compounds (VOCs, methanol, ethanol and acetone) was studied. The possible response mechanism......
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Three-phase flow of submarine gas hydrate pipe transportLI Li(李立)1, 2, XU Hai-liang(徐海良)1, 2, YANG Fang-qiong(杨放琼)1, 2(1. State Key Laboratory of High Performance and Complex Manufacturing (Central...-suction mining natural gas hydrate, when the temperature-pressure equilibrium of gas hydrate is broken, gas hydrates dissociate into gas. As a result, solid-liquid two-phase flow (hydrate and water......
J. Cent. South Univ. (2017) 24: 1727-1735 DOI: https://doi.org/10.1007/s11771-017-3580-z A hybrid zeolitic imidazolate framework Co-IM-mIM membrane for gas separation GAO Zheng-cai(高正才)1, LI Li-qing... in Teflon-lined autoclave at 120 °C after pre-depositing by dip-coating at room temperature. No visible cracks, pinholes or other defects were observed on the membrane layer. The gas separation studies......
Water coning mechanism in Tarim fractured sandstone gas reservoirsSHEN Wei-jun(沈伟军)1, 2, LIU Xiao-hua(刘晓华)3, LI Xi-zhe(李熙喆)3, LU Jia-liang(陆家亮)3(1. Institute of Porous Flow and Fluid Mechanics..., Langfang 065007, China)Abstract:The problem of water coning into the Tarim fractured sandstone gas reservoirs becomes one of the major concerns in terms of productivity, increased operating costs......
Prediction of gas pulsation of an industrial compressorHeuicheol Kim1, Mi-Gyung Cho2, Jaehong Park3, Cheolho Bai1, Jaesool Shim1(1. School of Mechanical Engineering, Yeungnam University, Gyeongsan... of gas pulsations are performed along the discharge pipeline of a reciprocating compressor for a refrigerator. A regression based experimental model of the one-dimensional acoustic field is developed......
J. Cent. South Univ. (2017) 24: 861-865 DOI: 10.1007/s11771-017-3488-7 Breakdown characteristics of CF4 and CF4/N2 hybrid gas in refrigeration temperature range HOU Meng-xi(侯孟希)1, LI Wei-guo(李卫国)1... of State Grid Hunan Electric Power Corp, Changsha 410000, China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: Common insulation gas cannot normally work in refrigeration......
Seepage law and permeability calculation of coal gas based on Klinkenberg effectWANG Deng-ke(王登科)1, 2, 3, WEI Jian-ping(魏建平)1, 2, 3, FU Qi-chao(付启超)1, 2, LIU Yong(刘勇)1, 2, XIA Yu-ling(夏玉玲)4(1. State Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan Polytechnic University),Jiaozuo 454003, China;2. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo......
Mathematical modeling and analysis of gas torque in twin-rotor piston engineDENG Hao(邓豪)1, 2, PAN Cun-yun(潘存云)1, XU Xiao-jun(徐小军)1, ZHANG Xiang(张湘)1(1. College of Mechatronic Engineering and Automation, National University of Defense Technology,Changsha 410073, China;2. Naval Aeronautical Engineering Institute, Qingdao Branch, Qingdao 266041, China)Abstract:The gas torque in a twin-rotor piston......
