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Chinese Science Bulletin 2005年第S1期50卷 163-170页

作者： ZHANG Dongli & WANG Xinhai Sinopec Exploration & Production Research Institute, Beijing 100083, china college of geoscience of yangtze university, jingzhou 43.023, china 1. Sinopec Exploration & Production Research Institute 100083 Beijing China 2. college of geoscience of yangtze university 434023 Jingzhou China

The mechanism of production increasing for the pinnate horizontal well is analyzed with the simulation technique. It is pointed out that the whole horizontal well-bore spreading widely and evenly in coal layers makes the stratum pressure drop evenly and fast, which increases the chance of desorption and diffusion and area controlled. This is the basic reason that the pinnate horizontal well can increase production. How such stratum parameters as permeability, Langmuir constants and adsorption time constant affect the gas production for the pinnate horizontal well is also studied with numerical simulations. Either for the vertical well or the pinnate horizontal well, bigger stratum permeability, steeper relative permeability curve, smaller residual gas saturation, higher gas content and stratum pressure are more favorable for gas production increasing. Langmuir constants decide the change of desorption quantity and influence the gas production through changing the extent of steep of isothermal adsorption curves in the pressure dropping area. The adsorption time constant only influences the time that gas production arrives at the maximum value for the vertical well, but it almost has no influence on the gas production for the pinnate horizontal well because the equivalent adsorption time constant is reduced.

关键词： coalbed gas pinnate horizontal well mechanism numerical simulation sensitivity effect.

Electrophoretic Coating of Hydroxyapatite on Pyrolytic Carbon Using Glycol as Dispersion Medium

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Journal of Wuhan university of Technology(Materials Science) 2008年第3期23卷 293-297页

作者：高林 college of Life Science and Technology Huazhong University of Science and Technology college of Chemistry and Environmental Engineering Yangtze UniversityJingzhou 434023China

Hydroxyapatite （HA） coatings on pyrolytic carbon were produced via electrophoretic deposition （EPD） using glycol and ethanol as dispersion medium respectively. The effect of the solubility of HA in the dispersion medium on crack occurrence and adherence of the coating was investigated by means of scanning electronic microscope （SEM） and atomic absorption spectrometer （AAS）. The results show that the solubility of HA in glycol is higher than that in ethanol. The usage of glycol as a dispersion medium can reduce the possibility of crack formation and enhance the adhesive strength between the coating and the carbon substrate. The green coatings can be sintered under vacuum at 1 000 ℃ whether the coatings are obtained using ethanol or glycol as dispersion medium. No HA decomposition was observed up to 1 000 ℃ by vacuum sintering by X-ray diffraction （XRD） analysis.

关键词： hydroxyapatite electrophoretic deposition coatings dispersion medium glycol

Evolution of Authigenic Minerals and Porosity in the Deep Formation of Paleogene of Jiyang Sub-basin

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地学前缘 2009年第S1期16卷 142-143页

作者： Jing Yuan college of geoscience and Information,china university of Petroleum,Qingdao 266555,china.

The clastic rocks in the depth of 2800-6000 m of the Paleogene in Jiyang sub-basin had undergone the middle diagenesis and late *** reservoirs in main areas of the sub-basin developed 2-6 secondary pores *** reservoirs in the stage A of middle diagenesis of Bonan fault zone in Zhanhua depression and of the gentle slope belt of Chezhen depression are controlled by the acidic diagenetic medium and developed one secondary pores zone in each diagenetic sub-stage *** contents ofautogenic quartz,pyrite and kaolinite are quite high in these *** reservoirs’

关键词： authigenic minerals secondary pores porosity evolution diagenetic medium deep formation Jiyang sub-basin

Research and Application of SOA Architecture in the Operation and Management System of Oil Production

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Research and Application of SOA Architecture in the Operatio...

The Growth of Latex Particles during the VAc/BA Copolymerization

2010 3rd IEEE International Conference on Computer Science and Information Technology—ICCSIT 2010

作者： Wang Jun college of computer science yangtze university jingzhou 43.023 china Zhong Baorong college of computer science yangtze university jingzhou 43.023 china Yu Huayun college of computer science yangtze university jingzhou 43.023 china

This The production and operation management system using SOA design and implement, which bases on the service-oriented development idea, enhances the company’s core competencies, and put coupling loosely, high reusa... 详细信息

关键词： soa service soap

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Journal of Wuhan university of Technology(Materials Science) 2006年第3期21卷 86-89页

作者：秦少雄 School of Chemical and Energy Engineering South China University of TechnologyGuangzhou 510640 ChinaCollege of Chemistry and Environment Engineering Yangtze UniversityJingzhou 434100China

The semi-continuous seeded emulsion eopolymerization of vinyl acetate and butyl acrylate was carried out with hydroxyethyl cellulose as a colloid stabilizer. The morphology of the latex particle and the relationship between the reaction time and the average particle diameter and/or the conversion ratio during the polymerization were invstiguted. The experimental results shaw that the morphology of the latex particle possesses the stable sterie construction. In the seeded polymerizution, the average particle diameter of latex decreased while the conversion ratio increased. At the second term of the emulsion copolymerization （the growth stage of particle size）, the latex particle average diameter increased with copolymerization continuously, but the instantaneous conversation ratio was not large, so it was very necessaO to properly prolong the time during the holding temperature stage.

关键词： hydroxyethyl cellulose VAc/ BA latex average particle diameter conversion ratio

Discovery of seismites in Upper Sinian stratiform lead-zinc deposits in Dadu River valley, Sichuan, china: Implication for ore genesis

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Science china Earth Sciences 2006年第11期49卷 1135-1146页

作者： LIN Fangcheng1,2 & PAN Guitang2 1. geoscience college, Chengdu university of Technology, Chengdu 610059, china 2. Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, china 1. geoscience college Chengdu University of Technology Chengdu 610059 China 2. Chengdu Institute of Geology and Mineral Resources Chengdu 610082 China

A number of lead-zinc sulphide deposits have been discovered in recent years in dolo- mitic rocks of the Upper Sinian Dengying Formation in the Dadu River valley region, Sichuan Province, china. The lead-zinc mineralization is closely associated with a black siliceous exhalite that has been traced over 50 km of strike. This makes Dadu River valley the most extensive stratiform non-ferrous sulphide horizon having been discovered to date in china. In a previous study by the first author (LIN), these deposits were recognised as belonging to the broad spectrum of lead-zinc sedimentary exhala- tive (SEDEX) deposits. In this paper, seismites and seismogenetic structures occurring in close association with the Dadu River valley mineralized zone are described. The close spatial and temporal relationship between the seismites and mineralization provides strong evidence for the hypothesis that the lead-zinc SEDEX deposits formed in direct response to earthquake activities around the Sinian-Cambrian boundary. The earthquakes are postulated to be an effective dynamic mechanism for triggering the upward migration of deep circulating ore fluids along synsedimentary growth faults and their exhalation onto the sea-floor to form the extensive deposits of stratiform lead-zinc sulphide ore.

关键词： seismites, earthquake, lead-zinc deposit, hydrothermal exhalation, Upper Sinian Dengying Age.

Distribution and origin of biologically available phosphorus in the water of the Meiliang Bay in summer

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Science china Earth Sciences 2006年第z1期49卷 146-153页

作者： HUANG Qinghui, WANG Zijian, WANG Donghong, MA Mei & WANG Chunxia State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, china Key Laboratory of yangtze Aquatic Environment (Ministry of Education), college of Environmental Science and Engineering, Tongji university, Shanghai 200092, china Chinese Acad Sci Ecoenvironm Sci Res Ctr State Key Lab Environm Aquat Chem Beijing 100085 Peoples R China Tongji Univ Coll Environm Sci & Engn Minist Educ Key Lab Yangtze Aquat Environm Shanghai 200092 Peoples R China

The investigation and continuous monitoring with an innovative iron oxide embedded cellulose acetate membrane (FeO/CAM) on the concentrations of biologically available phosphorus (BAP) were conducted in the Meiliang Bay of the Taihu Lake during summer in 2004. The results showed that the concentrations of dissolved (FeO-DP), particulate (FeO-PP) and total bioavailable phosphorus (FeO-P) had similar horizontal distribution. The BAP concentrations were the highest in those estuaries in the northern bay. With the decrease of the distance to the estuary or long shore,there was little difference between BAP concentrations in an open lake area. During the observation period, algal blooms occurred in most waters of the northern bay, which was reflected from the high concentrations of chlorophyll a (Chl-a). While they were not highest in the estuarine waters of those major rivers, this is the case for the BAP concentrations. The concentrations of Chl-a had a significantly positive correlation with those of bioavailable phosphorus in the open area of the Meiliang *** the sediment resuspension induced by wind and wave, BAP concentrations increased in a short-term, indicating that the riverine P inputs mainly contribute to the concentrations of BAP in the estuarine water while internal P release was the major source of BAP in the open lake area. In the eutrophic shallow lake, the blooms of alga may cause pH increase and further result in internal P release. The above results showed that the new membrane of FeO/CAM can be used to monitor the concentrations of BAP and provide the scientific justifications for the control strategy of the lake eutrophication.

关键词： phosphorus, bioavailability, eutrophication, resuspension, Taihu Lake.

Digital close-range photogrammetric application to small-scale physical simulation experiment

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中国有色金属学会会刊：英文版 2011年第S3期21卷 681-685页

作者： LI Chun-yi1, CUI Xi-min2, YU Yi-ju3 1. School of Surveying and Landing Information Engineering, Henan Polytechnic university, Jiaozuo 454003, china 2. college of geoscience and Surveying Engineering, china university of Mining and Technology, Beijing 100083, china 3. Surveying and Mapping Press, Beijing 100045, china [a] School of Surveying and Landing Information Engineering Henan Polytechnic University Jiaozuo 454003 China [b] college of geoscience and Surveying Engineering China University of Mining and Technology Beijing 100083 China [c] Surveying and Mapping Press Beijing 100045 China

In order to research the possibility of digital close-range photogrammetric surveying in small scale physical simulation experiment, physical model coinciding with engineering practice was constructed based on similar theory. The datum processing method and surveying precision of digital close-range photogrammetric were analyzed. And the function relationship between overburden subsidence factor qr and the ratio z/H of stratum horizon z and mining depth H was researched. The results show that surveying points position mean error along horizontal direction is ±0.131 mm and vertical direction is ±0.192 mm. Therefore, multi-taking station cross direction digital close-range photogrammetric can completely satisfy the precision need of physical simulation experiment. And the empirical formula can be utilized to represent evolution law of stratum subsidence factor.

关键词： close-range photogrammetric physical simulation light-rays adjustment surveying precision subsidence factor

Microcalorimetric Studies on the Effects of Rare Earth Ions on the Activity of Arginase

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Microcalorimetric Studies on the Effects of Rare Earth Ions ...

Rose solutions with three petals for planar 4-body problems

中国化学会第十五届全国化学热力学和热分析学术会议

作者： XIE,Xiuyin college of Chemistry and Environmental Engineering,yangtze university,jingzhou Hubei,china, 434020,

＜正＞Arginases（EC 3.***.3.1） are ubiquitous in *** the urea cycle of mammals,arginase is a very important enzyme,which specifically catalyzes the hydrolysis of L-arginine to L-ornithine and urea [1]

关键词： Arginase rare earth ions inhibition microcalorimetry.

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Science china Mathematics 2010年第12期53卷 3085-3094页

作者： DENG ChunHua 1,2 , ZHANG ShiQing 1, & ZHOU Qing 3 1 yangtze Center of Mathematics and college of Mathematics, Sichuan university, Chengdu 610064, china 2 Faculty of Mathematics and Physics, Huaiyin Institute of Technology, Huai’an 223001, china 3 Department of Mathematics, East china Normal university, Shanghai 200062, china 1. yangtze Center of Mathematics and college of Mathematics Sichuan University Chengdu 610064 China2. Faculty of Mathematics and Physics Huaiyin Institute of Technology Huai’an 223001 China3. Department of Mathematics East China Normal University Shanghai 200062 China

For planar Newtonian 4-body problems with equal masses, we use variational methods to prove the existence of a non-collision periodic choreography solution such that all bodies move on a rose-type curve with three pet... 详细信息

关键词： 4-body problems with Newtonian potentials rose solutions with three petals winding numbers variational minimization methods