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The Microbial Factor of Travertine Deposition between Yellowstone National Park (YNP), USA and Huanglong Scenic, Sichuan Qiongfang Li1,a,Faqin Dong2,b,qunwei Dai2,c,Tingting Huo2,d,Dejun An3,e, Shu Tang3,f 1 School of Life Science and Engineering, Southwest University of Science and Technology, 2 School of Environment and resource, Southwest University of Science and Technology, Mianyang City, Sichuan, China 3 Huanglong National Scenic Administration,Songpan Province, Sichuang, China aliqiongfang1992@126.com, bfqdong@swust.edu.cn, cqw_dai@126.com, d1015164873@qq.com,eandejun.618hl@126.com,fts_ydcg@126.com Keywords: travertin, Yellowstone National Park (YNP), Huanglong Scenic, geological microorganism, biological factor Abstract.
The travertine formation begins when water interacts with the soil zone, carbonate aquifers, organic material, or regional geothermal activity to produce H2CO3.
Konhauser claimed that the hot spring sinter was the key to Earth’s earliest life forms [19].

Ding National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R.
China The State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R.
Tensile tests were carried out using a Zwick T1-FR020TN A50-type electronic universal material testing machine at room temperature.

A Reliability Index Based Decoupling Method for Reliability-Based Design Optimization Zhenzhong Chen 1,a, Haobo Qiu 1,b, Hongyan Hao 1,c, Huadi Xiong 1,d 1 The State Key Laboratory of Digital Manufacturing Equipment and Technology School of Mechanical Science and Engineering Huazhong University of Science and Technology 1037 Luoyu Road, 430074, Wuhan, P.
Neill, Reliability-based structural design optimization for practical applications, In: Proceedings of the 38th AIAA/ASME/ASCE/AHS/ASC structures, structural dynamics, and material conference, Kissimmee, (1997) AIAA-97-1403

Introduction Bolt is the key part of flange joint, the adaptability of bolt can directly effect the normal operation of equipment.
Finite Element Model Fig.1 3-D model for analysis a) b) Fig.2 3-D model for two schemes a-3-D model picture with disc spring, b-3-D model picture with sleeve The basic size and material characteristics of flange model see the reference [2]; the model has two gaskets on the sides of pipe sheet, for the tube pass on top and shell pass underneath.
Ye: ANSYS Engineering Analysis Software Stress Examples (Tsinghua University Press, China 2003).

Study on Developing Data Depot for the Equipment Support Tao Li 1, a, Li Chen 1,b, Yijun Chen1, Shandan Zhou 2 1Department of Air Ammunition, Xuzhou Airforce college, Jiangsu 221000 2Dept.of POL and Material, Airforce Service College, Xuzhou 221000 ajiangnanlt@sina.com, brubychenl@sina.com Keywords: Equipment, Data depot, Information management, Support Abstract.In information war, support effectiveness of equipment depends on the ability of information management.
information needs, planning equipment in data warehouse 12 topic area, they were 1) equipment use and maintenance of the requested information, it includes task and use requirement data, average fault time interval, average maintenance interval, and mean time to repair, the total number of the security of the equipment in the maintenance plan, working hours, annual plan of maintenance cycle time, repair the required number of personnel and technology level, etc.; 2) equipment availability and reliability, maintainability, failure mode and effect analysis and harm of information; 3) equipment use and maintenance work, use and maintenance work list task analysis, personnel and security demand information; 4) to protect the equipment and training equipment demand information; 5) by the requirements and instructions are information; 6) facilities required information; 7) personnel quantity and professional skills required information; 8) packaging and supply demand information; 9) transportation engineering
Physical data model by including key code and model of the physical properties of expansion interface layer data model get, mainly used to realize the performance of the data warehouse optimization

Mine Hoist bearing condition monitoring and fault diagnosis system based on Labview Lirong Wan 1,a, Guangyu Zhou1,b , Chenglong Wang1,c, Wenming Zhao1,d 1College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266510, China awanlr666@163.com, bguangyu000@126.com, cwcllym@hotmail.com, dzhaowenming14235@163.com Keywords：mine hoist; Labview; bearing; vibration monitoring; signal analysis; fault diagnosis Abstract.
The mine hoist system is the large-scale and complex machine with the duty of hoisting the coal and gangue, lowering material and lifting personnel and equipments, so it is called “the laryngopharynx of mine production”.
IPC is the main control unit in the on-line monitoring of the system, it plays a key role in signal analysis and fault diagnosis, dynamic picture display and alarm indication.

Corrosion mechanism on oilwell cement in formation water with high content of CO2&H2S Cheng Xiaowei 1, a, Ma Yong2, b, Li Zaoyuan1, c, and Guo Xiaoyang1, d 1Key Laboratory of Oil and Gas Reservoir Geology and Exploitation , Southwest Petroleum University, Chengdu 610500 P.R.China 2Gas Production Technology Research Institute,PetroChina Southwest Oil & Gasfield Company, Guanghan 618300, China; 3.School of Petroleum Engineering,Southwest Petroleum University, Chengdu 610500,China acxw0261@sina.com, bzhanghua0403@126.com, cswpulzy@yahoo.com.cn, dguoxiaoyangswpu@126.com Keywords: cement paste, formation water, H2S/CO2, corrosion, cementing Abstract.
Fig. 3 TG-DTA thermogram of superficial cement in formation water with high content of CO2&H2S As the XRD spectrum of attachments on the internal wall of reaction kettle (Fig. 4)shows, corrosion attachments mainly are CaCO3 and two sorts of ferric complexes (named Hedenbengite and Julgoldite), and they probably are products of corrosion reaction between cement corrosion products and the internal wall material(the 316L stainless steel) of reaction kettle.
Acknowledgements The authors are grateful for the support by National Science and Technology Major Project of the Ministry of Science and Technology of China (2008zx05022), Open Fund (PLN 0910) of State Key Laboratory of Oil and Gas Reservoir Geology & Exploitation (Southwest Petroleum University) and The Natural Science Foundation of SWPU (2010177).

Recent developments in microextraction related techniques for trace environmental analysis Liu Zhao1,2,a, Zhihong Ma1,2,b, Dong Wang1,2,3,c, Ligang Pan1,2,d and Jihua Wang1,2,e 1 Beijing Research Center for Information Technology in Agriculture, 100097 Beijing, China; 2 Beijing Research Center for Agrifood Testing and Farmland Monitoring, 100097 Beijing, China; 3 College of Food Science and Nutritional Engineering, China Agricultural University, 100094 Beijing, China azhaoliu@nercita.org.cn, bzhma@nercita.org.cn, cwangd@nercita.org.cn, dlgpan@nercita.org.cn, e jhwang@nercita.org.cn Keywords: Stir-bar sorptive extraction, Single-drop microextraction, Membrane-assisted solvent extraction, Microextraction by packed sorbent, environmental analysis.
The key aspect of MEPS is that the volume of elution solvent is of a suitable order of magnitude to be injected into GC or LC systems.
Most current MEPS applications involve on-line connection with LC rather than GC since with the automated procedure it is not easy to dry the SPE material before elution, and small amounts of water get injected to the GC instrument.

Shear Thinning and Thickening of Alumina Suspensions Lu Xiang-yang1, 2,3,a, Zhang Li-ming 2,3,4 and Huang Yong 4 1 Beijing University of Science and Technology, Beijing 100083, PRC 2 Henan Key Laboratory of Advanced Refractories, Luoyang 471039, PRC 3 Luoyang Institute of Refractories Research, Sino Steel, Luoyang 471039, PRC 4 Department of Material Science & Engineering, Tsinghua University, Beijing 100084, PRC a luxy@lirrc.com Keywords: Al2O3 suspension; Rheological behavior; Tri-ammonium citrate Abstract.

The equipments error-free operation in the petrochemical industry is one of the key factors influencing the enterprise operation.
The early fault period presents a tendency of decline, which is mainly caused by the design, manufacturing and material defects and unskilled.
Combining TPM and Reliability Focused Maintenance, Plant Engineering，1997, 51 (6), P88