DIFFUSION

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Laboratory investigation into the oil diffusion from submarine pipeline under water flow被引量：2
《Acta Oceanologica Sinica》2018年第11期96-103,共8页JIANG Meirong YU Jianxing LI Zhigang ZHONG Wenjun WU Zhaohui YU Yang 
The National Natural Science Foundation of China under contract No.51609168;the Science and Technology Program of CNOOC Limited under contract No.YXKY-2016-2Y-07;the Open Fund of State Key Laboratory of Coastal and Offshore Engineering under contract No.LP1608;the National Basic Research Program(973 Program)of China under contract No.2014CB046804;the National Science and Technology Major Project under contract No.2016ZX05057020
A physical model test has been conducted to study the oil diffusion from the submarine pipeline under water flow.The crude oil in the flume is spilled from a leakage point of the pipeline and diffused from the seabed ...
关键词：oil diffusion submarine pipeline model test water flow spilled discharge 
Vacuum carburization of 12Cr2Ni4A low carbon alloy steel with lanthanum and cerium ion implantation被引量：4
《Journal of Rare Earths》2017年第11期1164-1170,共7页Meiling Dong Xiufang Cui Yuhui Zhang Guo Jin Caiwen Yue Xin Zhao Zhaobing Cai Binshi Xu 
The National Natural Science Foundation of China(51575118,51375106);National Basic Research Program of China(973 Program)(No.61328303);China Postdoctoral Science Foundation(2017T100225);Fundamental Research Funds for the Central Universities(No.HEUCFP201608)
As bearing parts, 12 Cr2 Ni4 A is expected to have high hardness and excellent fatigue strength, so carburizing is employed to improve the inherit properties of 12 Cr2 Ni4 A. However, the traditional carburizing is li...
关键词：Vacuum carburization Ion implantation LANTHANUM CERIUM DIFFUSION 
Composition dependence of dielectric properties in Pb(Zn_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)–BaTiO_(3)(PZN–PT–BT)relaxor ferroelectric ceramics
《Journal of Advanced Dielectrics》2017年第2期7-12,共6页Qiang Gao Li Jin Yu Cui Ye Zhao Kun Yu Xiang Shi Xiaoyong Wei 
Natural Science Basis Research Plan in Shaanxi Province of China (Grant No.2015JM5199);Fundamental Research Funds for the Central Universities, the National Basic Research Program of China (973 Program) (Grant No. 2015CB654602);International Science and Technology Cooperation Program of China (Grant Nos. 2013DFR50470 and 2015DFA51100),the 111 Project under Grant No. B14040.
Perovskite solid solution ceramics of PZN–PT–BT with several compositions were synthesized by solid-state reaction method.X-ray diffraction results indicate pure perovskite structures for all samples.Dielectric meas...
关键词：Relaxor ferroelectrics dielectric properties diffusion phase transition cation disorder 
Diffusion and Reaction Model of Catalyst Pellets for Fischer-Tropsch Synthesis被引量：1
《China Petroleum Processing & Petrochemical Technology》2013年第4期77-86,共10页Wu Jianmin Sun Qiwen Zhang Zongsen Pang Lifeng 
Financial support from the National Basic Research Program of China(973 Program,2010CB736203)
The diffusion and reaction phenomenon in a Fe-based catalyst pellet for Fischer-Tropsch synthesis was studied. It was considered that the pores of catalyst pellets were full of liquid wax under Fischer-Tropsch synthes...
关键词：Fischer-Tropsch synthesis diffusion and reaction catalyst pellet internal diffusion effectiveness factor 
Study on Diffusion of Hydrocarbons in FAU and MFI Zeolites by Molecular Simulation and Related Experiments被引量：4
《China Petroleum Processing & Petrochemical Technology》2012年第4期1-8,共8页Yuan Shuai Liu Yujian Tian Huiping Dai Zhenyu Zhao Yi Zhou Han Long Jun 
the key Project of Chinese National Programs for Fundamental Research and Development (973 Program) (No.2010CB732301) for financial supports
The diffusion of C4-24 alkanes, aromatics and cycloalkanes in FAU and MFI zeolites were studied systemati- cally by molecular simulation. The basic data on diffusion energy barriers and the diffusion characteristics o...
关键词：hydrocarbons DIFFUSION FAU MFI 
Low-diffusion preconditioning scheme for numerical simulation of low-speed flows past airfoil
《Applied Mathematics and Mechanics(English Edition)》2011年第5期613-620,共8页相倩 吴颂平 李椿萱 曹宁 
supported by the National Basic Research Program of China(973 Program)(No.2007CB714600)
The preconditioning technique can address the stiffness of a low Mach number flow, while its stability is poor. Based on the conventional preconditioning method of Roe＇s scheme, a low-diffusion scheme is proposed. An...
关键词：numerical simulation PRECONDITIONING steady flow AIRFOIL 
Effect of active species in crude oil on the interfacial tension behavior of alkali/synthetic surfactants/crude oil systems被引量：2
《Petroleum Science》2008年第4期353-358,共6页Liu Liwei Hou Jirui Yue Xiang＇an Zhao Ji 
National Basic Research Program of China(973 Program)
The effect of active species present in crude oil on the interfacial tension （IFT） behavior of alkali/synthetic surfactants/crude oil systems was studied. The system consisted of heavy alkyl benzene sulfonate, sodiu...
关键词：Contact time DIFFUSION ALKALI interfacial tension 
The importance of wave-tide-surge interaction to coastal material transport and diffusion
《Chinese Journal of Oceanology and Limnology》2007年第1期42-50,共9页尹宝树 黄勇 林祥 侯一筠 杨德周 
Supported by the Distinguished Overseas Youth Scholar Grant from NSFC (No.40428001, No.40576018);the National Basic Research Program of China (973 Program) (No. 2005CB422301).
This study is to combine a coastal high-resolution (2′×2′) two-way coupled wave-tide-surge numerical model (including 3 main physical mechanisms) with a material transport/diffusion model for understanding the law ...
关键词：coupled model material transport/diffusion wave-tide-surge interaction 
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