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Mechanism for calcite dissolution and its contribution to development of reservoir porosity and permeability in the Kela 2.gas field,Tarim Basin,china

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Science china Earth Sciences 2008年第4期51卷 567-578页

作者： YU BingSong1,3. DONG HailLiang2.3.& RUAN Zhuang1,3.1 State Key Laboratory of Geological Processes and Mineral Resources,{4. University of Geosciences, Beijing 100083.{4. 2.Department of Geology, Miami University,Oxford, OH 4.056, USA 3.Geomicrobiology Laboratory,{4. University of Geosciences, Beijing, 100083.{4. State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China Department of Geology Miami University Oxford OH 45056 USA Geomicrobiology Laboratory China University of Geoscien

This study is undertaken to understand how calcite precipitation and dissolution contributes to depth-related changes in porosity and permeability of gas-bearing sandstone reservoirs in the Kela 2.gas field of the Tarim Basin, Northwestern china. Sandstone samples and pore water samples are col-lected from well KL2.1 in the Tarim Basin. Vertical profiles of porosity, permeability, pore water chem-istry, and the relative volume abundance of calcite/dolomite are constructed from 3.00 to 4.00 m below the ground surface within major oil and gas reservoir rocks. Porosity and permeability values are in-versely correlated with the calcite abundance, indicating that calcite dissolution and precipitation may be controlling porosity and permeability of the reservoir rocks. Pore water chemistry exhibits a sys-tematic variation from the Na2.O4.type at the shallow depth (3.00-3.3. m), to the NaHco3.type at the intermediate depth (3.3.―3.95 m),and to the CaCl2.type at the greater depth (3.2.―3.3. m). The geochemical factors that control the calcite solubility include pH, temperature, pressure, Ca2. concen-tration, the total inorganic carbon concentration (Σco2., and the type of pore water. Thermodynamic phase equilibrium and mass conservation laws are applied to calculate the calcite saturation state as a function of a few key parameters. The model calculation illustrates that the calcite solubility is strongly dependent on the chemical composition of pore water, mainly the concentration difference between the total dissolved inorganic carbon and dissolved calcium concentration (i.e., [Σco2. -[Ca2.]). In the Na2.O4.water at the shallow depth, this index is close to 0, pore water is near the calcite solubility. Calcite does not dissolve or precipitate in significant quantities. In the NaHco3.water at the intermedi-ate depth, this index is greater than 0, and pore water is supersaturated with respect to calcite. Massive calcite precipitation was observed at this depth interval and

关键词： calcite dissolution porosity thermodynamic Tarim Basin

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N-苯氨基丙基烷氧基硅烷的合成

武汉大学学报（理学版） 2004年第4期50卷 446-448页

作者：杜小兰陈圣云廖俊蔡丽华张治民武汉大学化学与分子科学学院湖北武汉430072 武大有机硅新材料股份有限公司湖北武汉430072

利用氯烃基烷氧基硅烷与苯胺反应的方法分别合成了N 苯氨基丙基三甲氧基硅烷、N 苯氨基丙基三乙氧基硅烷、N 苯氨基丙基甲基二甲氧基硅烷以及N 苯氨基丙基甲基二乙氧基硅烷,并对反应条件进行了优化.结果表明:在最佳反应条件下,4.产品... 详细信息

利用氯烃基烷氧基硅烷与苯胺反应的方法分别合成了N 苯氨基丙基三甲氧基硅烷、N 苯氨基丙基三乙氧基硅烷、N 苯氨基丙基甲基二甲氧基硅烷以及N 苯氨基丙基甲基二乙氧基硅烷,并对反应条件进行了优化.结果表明:在最佳反应条件下,4.产品的产率分别可达74.,81%,64.,69%,纯度皆可达95%以上.产品经红外光谱、核磁共振谱确证了其结构.

关键词： N-苯氨基丙基三甲氧基硅烷 N-苯氨基丙基三乙氧基硅烷 N-苯氨基丙基甲基二甲氧基硅烷 N-苯氨基丙基甲基二乙氧基硅烷合成

Establishment and Application of an Indirect ELISA for Detection on Antibody of Haemophilus parasuis

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Animal Husbandry and Feed Science 2012年第2期4卷 93-96页

作者： ZHENG Nian-guang 1 ,LUO Man-ling 1,2.,GAO Juan 1 ,HE Ling 2.,XIA Fang 2.,TAN Shi-yong 3.,CHEN Rui-ai 1. South{4. Agricultural University,Guangzhou 51064.0}{2. 2. Guangdong Dahuanong Animal Health Products co. ltd,Yunfu 52.4.0,{2. 3. Guangdong Hu’nongwenshi Animal Husbandry co. ltd,Yunfu 52.4.0,{2.

[Objective]The aim was to establish an indirect ELISA for detection on antibody of Hps. [Method] The optimal conditions of indirect ELISA were selected and determined based on heat-resistant serotype 4.and 5 of Hps; specific,repeating and sensitive tests were conducted and 2.0 serums were detected. [Result]The optimal conditions were as follows： coating concentration of antigen at 10 μg /ml,and coating for 2.h at 3. °C; PBST containing 2. g /L of skim milk powder as blocking fluid for 3. min; serum dilution at 1∶ 80; reaction time of antigen for 4. min; dilution of secondary antibody at 1∶ 12.000 and effecting for 3. min; color development reaction for 15 min. [conclusion] The established indirect ELISA is good in specificity and repetitiveness with higher sensitivity than that of indirect hemagglutination test; the results of clinic samples （ negative /positive serums） were in consistent with those detected with foreign ELISA kits. The established method can be made use of in serum antibody of Hps de- tection and seroepidemiology study.

关键词： Haemophilus parasuis ( Hps) Antibody Indirect enzyme-linked immunoadsordent assay

Molten Salts/Ceramic-Foam Matrix composites by Melt Infiltration Method as Energy Storage material

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Journal of wuhan University of Technology(materials Science) 2009年第4期24卷 651-653页

作者：吴建锋 School of materials Science and Engineering Wuhan University of Technology

A new type of high temperature energy storage material was obtained through the melt infiltration method, using compounding SiC ceramic foam as matrix and Na2.O4.as phase change material. The resulting composite material was measured by XRD, SEM, TG-DSC methods. The experimental results indicate that the composite is composed of silicon carbide, sodium sulfate and square quartz, and no chemical reactions occurs between Na2.O4.and SiC matrix. Na2.O4.has a good bonding with the SiC ceramic foam matrix. As the composite material is characterized by high thermal energy storage density and high thermal conductivity, it is suit for energy storage under high temperature.

关键词： infiltration salt/ceramics SiC energy storage phase change materials ceramic foam

Novel Fe-based amorphous magnetic powder cores with ultra-low core losses

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Science china(Technological Sciences) 2010年第5期53卷 1290-1293页

作者： ZHANG Liang1,2.LI DeRen1,2.LU ZhiChao1,2.LU CaoWei1,2.LIU TianCheng1,2.GUO Feng2.LIU KaiHuang1,WANG Jun 2.& ZHOU ShaoXiong1,2.1 Central Iron and Steel Research Institute,Beijing 100081,china 2.Advanced Technology and materials co.,{2..,Beijing 100081,china 1. Central Iron and Steel Research Institute Beijing 100081 China2. Advanced Technology and Materials Co. Ltd. Beijing 100081 China

Amorphous magnetic alloy powders were prepared from bulk metallic glasses Fe74.r2.o2.n2.10Si4.4.2.with supercooled liq-uid region of {4. K by water *** magnetic powder core precursor was produced from a mixture of the amorphous alloy powder with addition of insulation and bonding materials by mold compacting at room *** annealing the core precursor,the amorphous magnetic core exhibits superior magnetic properties as compared with molypermalloy powder *** initial permeability up to 1 MHz was about 80,the flux density at {4.0 Oe was 1.06 T and the core loss at 100 kHz for Bm=0.1 T was only {4.9 kW/*** ultra-low core loss is attributed to the combination of relatively high resistivity and the amorphous structure of the Fe-based amorphous *** the outstanding magnetic properties,the Fe-based amorphous magnetic powder core had a much lower cost which renders the powder cores a potential candidate for a variety of industrial applications.

关键词： Fe-based amorphous powder water atomization amorphous powder core ultra-low core loss

MODEL-VIEW-coNTROLLER FRAMEWORK IN PEER-TO-PEER APPLICATION development

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MODEL-VIEW-CONTROLLER FRAMEWORK IN PEER-TO-PEER APPLICATION ...

The Design of Intelligent corporate E-commerce System

第八届分布式计算及其应用国际学术研讨会

作者： Cheng WeiJie1 2.Luo YunChuan 3.4.Cheng YanPing 4.Jiao YanJie 4.Zhang JinLiang 4.1wuhan University of Technology 2.Beijing Highland Information Techonogy co.{2. 3.Beijing University of Technology 4.National Cultural Information Resources Sharing Project

The application of Model-View-controller architecture in the development of Peer-to-Peer software is researched in this *** on that a MVC framework applied to the development of the P2. software is proposed as well as... 详细信息

关键词： MVC Framework P2. Application

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厦门大学学报（自然科学版） 2002年第S1期41卷 265-266页

作者： ZHANG Qing-bian 1, ZHANG Fu-hai 2. ZHANG Li-fang 1 (1. Dept. of Electronic Engineering, Xiamen University, Xiamen 3.1005 , china 2. corporation of Kingside Network {2., Shanghai 2.002.0} china)

The paper shows how to design and implement an inte ll igent e-commerce system for medium or small enterprises. The corporate intranet is connected with Internet, which constitutes the hardware of the system. The s ystem adopts modern voice-identification technology for user authentication to enable secure access to key databases and thus enhance the security of system da tabases. The software system consists of four modules: 1. corporate website and advertisement information system, intending for updatin g online advertisement, collecting and analyzing market research information. 2. Employee technology training and assessment system, including a variety of co urses containing technology, technique and management and so on. Login the training system, employees are able to study courses of technology or technique or others. The training system adopts modern multimedia E-Learning te chnology and in fact it is an innovative education method, which includes self- study, tutorship and lecture. It is able to help employees enjoy their learning. Employees can take simulative exams, and managers can test employees onlin e periodically. 3. corporate decision-making management system, calculating and analyzing the o peration, predicting future development, facilitating communication between mana gers and employees. It provides valuable foundation for decisions, which enables managers to make strategic decisions and scientific management. 4. E-commerce online transaction system, which facilitates {2. purchase an d product sale. By using intelligent e-commerce system, corporations will enhance the employee’ s skills and management level, reduce production cost, promote product sale , and thus strengthen corporation’s market competitiveness effectively.

关键词： e-commerce corporate decision management techn ology training and assessment

Effect of Nb,Mo and Ti on the Microstructures and Mechanical Properties of 700MPa Weathering Steel

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Effect of Nb,Mo and Ti on the Microstructures and Mechanical...

Mechanism of Calcined Phosphogypsum for the Volume Change of Blended Cement

第六届国际低合金高强度钢会议

作者： WANG Bing~1,SONG Yu-lai~2.WEN Xiao-ming~3.WANG Hou-xin~4.LIU Qing-you~1 (1.Institute for Structural materials of CISRI,Beijing 100081,{2. 2.Research and development Center of {3. Iron and Steel(Group)corp.,{3. 4.1}080,hubei,{2. 3.Benxi Iron and Steel Group Limited company Benxi 117000,Liaoning,{2. 4.CITIC-CBMM Microalloying Technology Center,Beijing 100081,{2.)

Using metallurgical structure observation and measurement of mechanical properties such as micro-hardness, tensile test,cold-bend,the effect of Nb,Mo and Ti on the structure and mechanical properties of 700MPa weathering steel was studied under the same rolling *** results show the formation of M/A is promoted by Mo,while inhibited by ***,M/A island,as a hard phase,is harm to the material toughness and plasticity;high M/A island fraction will result in obvious crack during cold *** effect of Nb on increasing the strength of experiment steel is very *** Nb content of 700MPa steel must be higher than 0.05%to ensure the *** optimal mechanical properties of the experiment steel will be gained by the proper match ratio of Nb,Mo and *** industry trial production of 700MPa high-strength weathering steel for container was also developed.

关键词： weathering steel Nb Mo Ti mechanical properties M/A island

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Journal of wuhan University of Technology(materials Science) 2006年第Z1期21卷 147-151页

作者：杨志明 Guangxi Building materials Scientific Research and Design Institute Nanning 53.02. China

The paper describes an investigation into the volume change of cement mortar specimen at the three kinds of different curing schedules including 2.℃and 5% Na2.O4.solution curing, tap water standard curing, 50% RH curing for 90 days. The testing results of hydration heat, chemical shrinking and XRD prove that calcined phosphogypsum has evident excitation effect on the activity of high calcium ash and steel slag. Simultaneously, calcined phosphogypsum has the function of decreasing volume shrinkage to blended cement possessing steel slag and high calcium ash. In sulfate curing, calcined phosphogypsum can avoid the phenomenon of protrude apex of the blended cement.

关键词： calcined phosphogypsum steel slag high calcium fly ash volume change