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And reverse engineering’s key technologies were data acquisition, data processing and model reconstruction[4], as shown in Figure 1 was the reverse engineering to the physical ashtray product.
Fig.1 The reconstruction of physical product’s model 1.2 The experiment of materials and equipments Molding materials (ABS B601) and support materials (ABS S301) are two kinds of materials applied to rapid prototyping.
Preheat the rapid prototyping machine, wait for the temperature of forming chamber, molding materials and the support material reached to the machine acquiescent temperature (Molding chamber was 90℃, the molding material was 260℃, the support material was 240℃)
Conclusions It is likely still a key technique difficulty for product designers to achieve rapid product development based on reverse engineering, and a fair engineering solution will surely be significant in reduction of product development leading time and cost[9].
Constrained Fitting in Reverse Engineering [J].

Introduction In recent years, the role of numerical simulation in engineering and manufacturing industry has been continuously increasing.
Due to the development in the methods of simulation and computational facilities, simulation has become an everyday tool in engineering practices.
FE models that were prepared under the guidance of engineering experience are more accurate.
[4] Dong Hongzhi and Lin Zhongqin: Journal of Materials Processing Technology Vol. 103 (2000), p. 404-405
Takamura: Journal of Materials Processing Technology Vol. 173 (2006), p.178-184

Material selection and sizes optimization of casing material for high-temperature natural gas well Ling-feng LI 1, a 1 Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Petroleum Engineering College of Yangtze University,Wuhan, China a lilfeng_cn@yahoo.com.cn, Keywords: material selection; casing material; sizes optimization; gas well; high-temperature Abstract.
In natural gas production engineering for high-temperature gas well, material selection and sizes optimization of casing material are one of the important phases.
Material selection and sizes optimization of casing material for high-temperature gas well play a key role.
[5] Shilun Li: Natural Gas Engineering (Petroleum Industry Press, China 2008) (In Chinese)
[9] NACE Standard MR 0175-95, Sulfide Stress Cracking Resistant Metallic Materials for Oil Equipment.

Such four parts as the foundation engineering, the structural engineering, the decoration engineering and the roofing engineering are taken as the value object of study.
Collection Material Basic Data: This engineering project construction standard, project characteristic and so on.
Technical Data: This engineering project design document, construction organization plan, additional document by each kind of needed materials specification and quality technology target and so on.
Economic Data: Construction drawing budget, construction budget, cost plan and manpower and materials machine expense clear and so on, including: · Folk recipe and foundation engineering cost · Main body structural engineering cost · Costs and so on roofing waterproofing and heat insulation · Decoration repair project cost Functional Analysis and Appraises.
The structural engineering c.

An engineering change is costly and time consuming.
The characteristics of an engineering change were demonstrated; the data model was set up for supporting engineering change analysis; the method for analyzing engineering change propagation was proposed.
Mak: Journal of Materials Processing Technology.
Fang: Journal of Engineering Graphics.
Mak: Journal of Materials Processing Technology.

A Study on Duration – Cost Information System of Water Conservancy and Hydropower Engineering Hongyuan Zhang Changchun Institute of Technology (130012), Jilin of China Zhanghongyuan1970@126.com Yinghong Liu Changchun City Experimental High School (130000) Jilin of China pronounce@eyou.com Key Words: PROJECT Software; Water Conservancy and Hydropower Engineering；Duration Cost Abstract.
Construction Engineering Project Management [M].
Construction Engineering Project Management [M].
Construction Engineering Project Management [M].
Engineering Construction Project Management [M].

Research on material selection and sizes optimization of casing material for fracturing wells under existence of brine corrosion Ling-feng LI 1, a 1 Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Petroleum Engineering College of Yangtze University,Wuhan, China a lilfeng_cn@yahoo.com.cn, Keywords: material selection； casing material；structure; sizes optimization; heavy oil thermal recovery wells Abstract.
The designing level of material selection and sizes optimization of casing material for fracturing wells under existence of brine corrosion play a key role in the expected production target to fracturing wells.
References [1] Wan Renpu: Advanced Well Completion Engineering (Gulf Professional Publishing, U.S. 2011)
[4] Yingchuan Li, et al.: Petroleum Production Engineering, Petroleum Industry Press, Beijing, 2001 (in Chinese)
[7] Liu Yuzhang, Zheng Junde, Progress of Petroleum Production Engineering, Petroleum Industry Press, Beijing, 2006 (in Chinese).

A Discussion about Construction Techniques to Improve Durability of Concrete Bridges in Apline Regions JIE RUI1a GUOMING LI2b BING WANG3c ZONGREN WANG4d 1 2 3 4 Road &Bridge international CO.LTD,Beijing,100027, P.R.China a Email: 549600656@qq.com b Email: 591918753@qq.com c Email: 249256241@qq.com d Email: 27657570@qq.com Key words: alpine regions, durability, construction key technology Abstract: Based on the discussion of the quality control and management requirements for the concrete raw materials, the raw materials preservation heat in the mixing concrete process and the note in the process of transportation with the requirements both in concrete casting process and the casting vibrating process, the paper proposes the construction key technology of improving the durability of the concrete in alpine region. 1.
Concrete materials, reinforced, templates and Stockyard in contact with the concrete ground shall the temperature is too low.
The raw materials of concrete quality control and strict management requirements; 2.
Raw materials for thermal insulation in concrete mixing process heating, but should not be more than 60 ℃; 3.
Zhejiang University (Engineering Science), 2002, 36 (4): 371-80.

Experimental Research on Using Heat Shrinkable Material to Protect Prestressed Anchor Li Zhu1,a, Tianxing Cheng2,b, Eryu Zhu1,c, Xiaoyin Lv1,d, Yongzheng Zhou1,e 1School of Civil Engineering, Beijing Jiaotong University, Beijing 100044，China 2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China a08231061@bjtu.edu.cn, bhk_cheng@126.com, ceyzhu@263.net, dlvxiaoyin@yahoo.cn, ezyz_zhou@sina.com Keywords: prestress engineering, prestressed anchor, heat shrinkable material, sealing technology of anchor, electrical insulation, sealing, anti-stripping, durability Abstract.
Anchor is the key component for force transmission of prestressed structure.
Principle of heat shrinkable material protection to anchors Heat shrinkable materials, also known as shape-memory polymers, is made by cross-linked polymer network structure with new link keys formation among polymer chains after high-energy radiation treatment or chemical treatment of initiator to the polymer crystallization.
The preparation of test materials.
(In Chinese) [16] Petroleum Engineering building construction standard committee: SY / T 4054, (2003).

An Engineering Example In Daliuta face in the Shen-dong mining area, average dip angle of seam is about, average thickness about, and bury depth.
The examples from engineering show that the research result is helpful to improve the accuracy of roof disaster predict and forecast.
Chinese Journal of Rock Mechanics and Engineering 2002; 21(8): 1174－1177 [in Chinese]
West -Chine exploration engineering 2006; 18(2); 95-97 [in Chinese]
Chinese Journal of Geotechnical Engineering 2007; 29(12): 1763-1766 [in Chinese]