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Study on the Mechanism of Engineering Ceramics in Rotary Ultrasonic-vibration Grinding Changchun Yu Shenyang Ligong University Shenyang, China Changchunyu2000@163.com Key words: Engineering ceramics; Ultrasonic-vibration grinding; Grinding mechanism; Material removal rate; Grinding force Abstract:This paper analysis the process of Al2O3 engineering ceramics grinding and study the mechanism of rotary ultrasonic-vibration grinding.
However, ceramic materials are easy to produce cracks because of its brittleness and high strength, thereby easily leading to stress concentration in use.
（a） （b） （c） Figure 2 Ultrasonic-vibration Grinding Mechanism The main function of rotary ultrasonic grinding of engineering ceramics is detailed as below (as shown in Figure 2): (1) Direct mechanical grinding action of abrasive grains: Abrasive grains rotating together with the tool extrude grinding workpiece materials under static load, thus causing it to produce small amount of plastic deformation and cracks and finally to produce brittle fracture
Status Quo of Processing Technology for Engineering Ceramic Materials [J].
Mechanical Engineering Materials,2000, 24(1):2-5

Study on the Seepage Defect at the Connection of the Overflow Dam and the Earth Dam of Banqiao Reservoir Baisong Nie1,a, Zhenzhong Shen2,b 1College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China 2State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China aniebaisong@126.com, bzhzhshen@hhu.edu.cn Keywords: Seepage defect; The lateral key wall; Contact leakage Abstract.
According to the actual situation of Banqiao Reservoir, the material partitions consists the main dam, the bedrock and the anti-seepage curtain.
The seepage coefficients of the dam body, dam foundation and anti-seepage curtain materials are listed in Table 1.
Xu: Applied Mechanics and Materials 2011, Vol 90 (2011), p. 1434
[5] Zhenzhong S, Ming M, Liqun X, et al: Bioinformatics and Biomedical Engineering, 2009.

The Key Management Scheme for the WMSN-based Post-Disaster Road Monitoring System Xiaoling Sun, Xuguang Sun, Shanshan Li, Fuming Chen, Qiuge Yang Department of Disaster Information Engineering, Institute of Disaster Prevention, Sanhe,China {sunxiaoling, sunxuguang, lishanshan, chenfuming, yangqiuge }@fzxy.edu.cn Keywords: sensor networks, key management scheme, post-disaster road , monitoring system Abstract.
The q-composite key predistribution also uses a key pool but requires two sensors compute a pairwise key from at least q predistributed keys they share.
Application Of Wsn In Post-Disaster Road Monitoring System After the earthquake, roads and bridges are damaged, transmission and communication are interrupted, so the manpower and material for rescue can not be implemented in the first time to the disaster-affected area.
The time of decrypting key is longer than the time of updating key.
In the key establishment phase, the station and nodes consult shared keys with stored variables, including the key between cluster node and sense node, the key between cluster node and station.

Multi-objective optimization method for tasks scheduling of large-scale engineering project.
Computer Engineering and Applications. 2010, 46(24):217-221. in Chinese ].
Study on Contemporary Integrated Management System of Engineering Projects.
Concept design of VCM The goal of VCM is to find problems which may occur in real practice, by means of full virtual simulation of flow process, including people, materials, machine, information, etc.
Vision of the large scale engineering construction industry in Europe.

Advanced Rapid Forming Technology For Remanufacturing Engineering Peijing Shia, Hongmei Wangb , Wei Zhangc and Binshi Xud National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering,Beijing 100072, China ashipj@163.com, bwanghongmei771104@yahoo.com.cn czhangwei18@sina.com, dxubinshi@vip.sina.com Key words: remanufacturing engineering; rapid forming; Abstract: Based on the foreign remanufacturing mode, the new remanufacturing rapid forming technology, which relies mainly on Surface Repair and Performance Improving Method has been explored and practiced.
Simply, remanufacturing engineering is the industrialization of high technology maintenance to the waste productions.
The important character of remanufacturing engineering is that the quality of the remanufactured productions is as same as or superior to those of the new productions, and the cost is only a half of the new one, saving energy 60%, saving materials 70%, and decreasing the bad influence to environments.
Recently, there are three advance surface engineering technologies used in remanufacturing forming.
Key Engineering Materials[J], 2008, 373-374: 43 [5] Wang Zhijian, Dong Shiyun, Xu Binshi et al.

The advanced material has been used extensively in various engineering in recent years, especially in the fuel-gas pipes.
So the leak detection has important meaning in the field test experiment of pipes’ material properties and the practical engineering.
The leak detection has important meaning in the field test experiment and practical engineering.
Advanced Materials Research.
Journal of Basic Science and Engineering, Vol. 16(2008), p. 280-286

Strategies for Inherent Safety Design during Engineering Construction Xin Wang 1, a, Lijing Zhang 1,b and Xiaoyong Liu 2,c 1 Safety Engineering Department, Nanjing University of Technology, Nanjing 210009, China 2Jiangsu Academy of Safety Science and Technology, Nanjing 210042, China awangxin_88@126.com, bzhanglj@njut.edu.cn, cxyliu@mail.ustc.cn, Key words: Engineering Construction; Inherent Safety; Layers of Defense; Design Strategy; Design Stage Abstract.
The opportunity for the inherent safety during engineering construction was analyzed.
The main hazardous factors of construction may result from mechanical equipment, temporary power utilization, basic engineering, structure engineering, etc.
For the engineering construction, the wear of wires and ropes should be as the key question to consider.
of engineering construction.

Research on Fiber Shotcrete for Underground Engineering HUANG Mina and PAN Bing-yub Department of Civil Engineering, Henan Institute of Engineering, Zhengzhou, China, 451191 a huangmin_2006@163.com, b pbyhnei@163.com Key words: fiber; shotcrete; underground engineering; research Abstract: The fiber material generally has higher tensile strength and toughness, which make up for the lack of tensile strength of concrete and the defects of drying shrinkage easily.
Due to its characteristics of materials and processes, shotcrete is widely used in underground engineering, building engineering reinforcement and protection, and make a good reinforcing effect and economic benefits.
Fiber reinforced concrete is composite material based on mortar or concrete with metal materials, inorganic fibers or reinforcing material.
Underground engineering is today one of the most widely used engineering for fiber reinforced concrete.
So, it is necessary to conduct a deeper research to further optimize the fiber Materials and concrete mix design, reduce cost, enhance the overall performance of concrete and better services for engineering design and construction.

One of the key options is focusing on innovative material that enables improvements on both energy efficiency and material efficiency of total product.
In this work, we tried to characterize some key performance indicators for lighting products (e. g. transmission and reflection) of those bio-based polymers in our engineering platform: a consumer luminaire system.
It means for most cases, the bio-based polymers are not drop-in replacement for its reference materials (PMMA or PC).
Concluding Remarks Bio-based materials have great potential as an enabler to improve eco-friendliness in lighting product.
Feasibility of innovative coating materials also shows that the progress of material can simplify current complex layer architecture in LED lighting.

A Study on Case-based Learning in Engineering Graduate Education Yingqing Wu1,a , Tingzhang Liu1,a, Shenjing Jie1,a 1 Shanghai University, 149 Yanchang Road, Shanghai University, Shanghai China azoer001@126.com Key words: Engineering Graduate Education; Teaching Mode; Case-based Learning Abstract.
The research ability of engineering students is a major guarantee for national scientific development.
There are several difficulties to carry out the course teaching for engineering students.
The engineering classroom course is designed in this paper using the case-based learning method.
During the 2nd to 5th weeks, teacher gives topics on basic theoretical knowledge and main skills of technology report and then each team begin to anatomize cases and analyze raw materials.