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China 3 Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, 710032, P.
China 4 Key Laboratory for Advanced Materials Processing Technology, Ministry of Education & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, P.
Materials and Methods Materials.
The first layer of deposited materials was frozen on the platform.
Zhang: Key.

The forming process of composite materials The key technology of composite materials is to meet the product shape, size and surface quality of the premise, the reinforced material can be evenly distributed in a predetermined direction, and reduce the performance degradation, the base material to fully complete the curing reaction, the interface and the reinforced material with good, discharge of volatile gas, reduce product porosity.
From the fiber reinforced composite started by the military and engineering circles.
So the improvement of the process becomes the key to development process of advanced composite materials, the next step.
The key technology of fiber winding process of thermosetting composites(C) //Chinese glass steel raw materials market and glass steel latest technology forum proceedings, 2009: 5 -8 [5] .Wang Zhihui, Lu Jia.
Study on the fiber placement head.Mechanical engineer, 2007 (12): 93-94

Thermal Stress Performance Analysis for a New External Wall Insulation System Jianguang Li College of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China lijian7553@163.com Keywords: Small frame, Shear key, Thermal stress, Crack.
In this paper, two models are taken as subjects, one being a small frame exterior composite insulation system with the shear key, the other being the system without the shear key.
Model1: W1-XKTP facing layer without shear key.
The thermal physical properties of the material can be seen in [2,3].
First, in this paper, it is assumed that the heat transfer of materials is passed only by heat conduction without considering radiation heat transfer of the materials.

Investigation on Axial Turning-Grinding of Engineering Ceramics Xinli Tiana,Fang Guob ,Yatao Maoc,Jianquan Wangd ,Sen Xue and Shu Zhangf National Key Laboratory for Equipment Remanufacturing Engineering, Academy of Armored Forces Engineering, Beijing,100072,China atianxli719251@sohu.com,bpuzzlele@tom.com,cmaoyatao666@163.com, djianquanwang0514@yahoo.com.cn, exusen.1985@163.com,fzhangshu5799@163.com Keywords: Engineering ceramics; axial turning-grinding; annularity tool; removal mechanism Abstract.
The primary cutting zone, the main material removal area, bears the main cutting force, and materials in this zone broke into debris in large-scale.
Engineering ceramics is a compound made of metal or semi-metal atoms and nonmetal atoms in the form of ionic bond or covalent bond with high hardness and chemical stability, but lower toughness, and it’s a special hard- brittle material.
Conclusions From above analysis, the following conclusions could be drawn: (1) Axial turning-grinding of ceramic materials is a practical method, which could greatly improve the efficiency of ceramic materials processing and reduce processing costs.
Materials Science and Engineering,2003,A345:155-163

The Research On Pure Water Hydraulic External Gear Pump Dexin Zhao,Ruibo Yuan and Jing Luo College of Mechanical and Electrical Engineering Kunming University of Science and Technology Kun Ming City Yun Nan Province E-mail:zhaodexin123@126.com, kmust_yrb@163.com, yuanrb@126.com Key Words: Pure water hydraulic; External gear rotary pump; Engineering material; Surface treatment; FLUENT Abstract:This article describes the structure of pure water hydraulic external gear pump, structural design and calculation of parameters,analysises the mai spare part material of pure water hydraulic external gear pump and determines the type of the new engineering materials.
optimum axis-direction clearance of pure water hydraulic external gear pump is about 1/6~1/10 of hydraulic pump, usually less than 5μm. 1.3.2 The optimum radial clearance 13 14 15 After being cleaned: 16 —the leakage of the radial clearance(l/min); δ—the radial clearance between top of tooth and shell（m）; —crest width（m）; IF , SO: 17 SO: 18 is getted from the most efficient of the radial clearance, in actual life, normally we can get the value from 0.03~0.1mm[4]. 1.4 Trapping phenomenon and off-load measures In order to reduce trapping phenomenon, the most commonly used method is opening a relief notch on the end cover(or pleuron shaft sleeve bearing race).So we chose the double rectangular relief notch.In addition,we also take some measures to play compensation. 1.5The key
Speed（r/min） 4000 dead slow（r/min） 1400 Rated volumetric efficiency condition ≧85% 2 The choice of materials and surface engineering analysis to pure water hydraulic external gear pump 2.1 The choice of materials to pure water hydraulic external gear pump Shell and pump cover are made in wrought aluminum alloy,gear are made of stainless steelor, The compensation side plates are also made in wrought aluminum alloy, bearing uses SF-1 compost bearing material, sealing is made in carbon and graphite material. 2.2The surface engineering analysis to pure water hydraulic external gear pump Gear:chose the nanoscale composite ceramic of surface coating technology Shell:chose the micro-arc oxidation in the surface of the ceramic self-lubrication coating. 3The simulation and analysis to pure water hydraulic external gear pump by FLUENT Set the parameters and conditions: The import size of gear model is 13mm, export size of gear model is 10 mm, tip diameter is 36mm,the number of gear
teeth is10, heoretical flowing capacity is 8mL/r, rated pressure is 14Mpa, rated revolution is 3500r/min, FLUENT start to calculate, curve of residual error is: Figure 6 curve of residual error Summary: Through this paper’s study,the material of pump,structural parameter,and surface science and technology of materials of the pure water hydraulic external gear pump meets the design requirements for gear pumps,can be applied in the industrial production.

Research on the Key Techniques on 3D Virtual Campus System Xiuli Diao1,a Zhengguo Song2,b 1,2College of Information Science and Engineering Shandong University of Science and Technology Shandong Qingdao, China ae-mail: dxlszg@126.com, be-mail: szgdxl@126.com Key words: Virtual campus; Modeling; Map; Model; Construction Abstract. 3D virtual campus construction mainly includes several key techniques and links, such as material resources collection and processing (including campus CAD graphic design and material texture image), preliminary modeling of 3D building, model’s optimization and texture mapping, scene integration and rendering baking derived of 3D building and system integration platform and so on.
This paper attempts to study the key technology and the specific production process for every link of 3D virtual campus system.
As the three-dimensional modeling needs more texture materials and detailed processing, it requires much work in texture picture collection, sorting and processing.
It is on the base of the prepared material images and CAD maps to build primitive modeling in 3Dmax.
The first step is drawing the outline, then squeezing out with basic tools, and labeling green material.

Research on Surface Failure Mechanism and Building Stability for Coal Mining Hong Ji1, a，Xueyi Yu2,b and Zhixing Gao3,c 1 School of Geologic and Environment Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, China 2 School of Energy Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, China 3Bin Chang production service area of Shaanxi province, Xian yang, Shaanxi, 712000,China amodena@sohu.com, byuxy@ xust.edu.cn, cgaozhixing@ xust.edu.cn Key words: stability; failure mechanism; deformation; key layer; numerical simulation Abstract.
The engineering geological condition of the mine goaf and the exploitation method are proposed with an engineering example.
Gradually it forms an integrated evaluation method which integrates the similar material physical simulation, numerical simulation and field detection based on the probability theory [2].
Under certain condition, the critical layer plays a key role in the control of surface subsidence.
Conclusions Coal mining damage is a difficult engineering problem which restricts the development of enterprise.

Research on Key Technologies of Manufacturing Resources Sharing Platform Supporting SMEs Based on Web Services Junying Wei1, a, Peisi Zhong1, b and Chunfen Guo1, c 1College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266510, China ajdwjy0726@163.com, bpszhong@163.com, cguochunfen@163.com Keywords: Small and Medium-size Enterprises (SMEs), Function Analysis, Manufacturing Resources Sharing Platform, Key Technologies, Web Services Abstract.
The key technologies of the platform are discussed, such as the definition, classification, the information model, integration and the security management of the sharing manufacturing resources.
Narrow manufacturing resources mainly refer to the material elements needed to manufacture one component.
Being the bottom manufacturing resources in a manufacturing system [4], narrow manufacturing resources include machine, tools, fixtures, gauges and materials and so on.
Wang: Study on Several Key Problems for Networked Manufacturing Resources Integration Platform.

Ltd., Xinfeng town, Yancheng city, Jiangsu Province, China 4Wuxi inspection center of architectural quality, No.8 Xinhuihuan Road,Wuxi city, Jiangsu Province, China apanpan720@hhu.edu.cn, b13805108610@126.com, cYqjiang@hhu.edu.cn, d708858398@qq.com Keywords: Civil engineering materials, Autoclaved Aerated Concrete, Aluminum insertion, Properties Abstract.
Study on the compressive strength, shrinkage and effect of aluminum insertion materials on the hydration products of Autoclaved Aerated Concrete(AAC).
Low porosity, high crystal gel volume ratio and high hydration degree are the key of the high strength aluminum insertion aerated concrete.
Aluminum insertion materials improve the performance of the products. 1．Introduction Aerated concrete is a porous material which is produced by hydrothermal synthesis reaction of calcium and silica materials under certain conditions.
Experimental 2.1 Raw materials Self -made aluminum insertion materials; B06 ordinary aerated concrete(blank sample)- sample A B06 aluminum insertion aerated concrete- sample B 2.2 Test methods The mechanical properties of aerated concrete and the shrinkage performance of rapid method are tested according to GB/T 11969 - 2008.

Application of silk fibroin in tissue engineering Silk fibroin material was used in tissue engineering for a long period.
These materials may react to body and induce toxic and side effects[8-10].
So it is a good material for tissue engineering and drug release-controlled carrier.
Conclusion Silk fibroin is a economic biomaterial for the tissue engineering and drug carrier engineering.
Journal of Biomedical Materials Research Part A, 2011, 98(4):567-75