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Feature Extraction Method Based on Key Words.
Feature Weighting Scheme Based on Key Words.
IEEE Trans. on Knowledge and Data Engineering,2004,16(10):1305-1308 [5] Liu Li, He Zhong-shi, Term selection and weighting approach based on key words in text categorization.
Computer Engineering and Design.2006.3, 934-936 [6] LIU Hai-feng, YAO Ze-qing, WANG Ze-yan, ZHANG Xue-ren.
Computer engineering and application, 2006.11

The Non-destructive Measurement Instrument for Material Thickness Shoucheng Ding1,2,a, Wenhui Li1,b and Guici Yuan3,c 1 College of Electric and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China 2 Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou, Gansu, China aemail:dingsc@lut.cn, bemail:liwenhui789@sina.com.cn, cemail:yuangc@lut.cn Key words: Material thickness; ultrasonic; AT89C51 microcontroller; non-destructive testing Abstract.
In a variety of materials, the ultrasonic propagation velocity is different.
In practice, the general use of the limited duration of pulsed ultrasound, due to the need for engineering technology, and further divided it as wide pulse and narrow pulse.
Keyboard circuit design of the system has 4 independent keys: K1 speed of sound selection key, select the speed of sound system do with it, ultrasonic thickness gauge in measuring the thickness of different materials, due to ultrasound propagation in different materials at different speeds, set the material the speed of sound, for example, the speed of sound of steel 5950m / s, the velocity of zinc 4170m /.
K2 Velocity plus 1: 9 mentioned above to set the speed of sound typical materials, selected by the speed of sound selection button.

School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang Jiangxi 332005, China 2.
School of Materials Science and Engineering, Hefei University of Technology, Hefei Anhui 230009,China； Key words：ECAPT ; strengthening the material properties; deformation and densification; SPD Abstract：Severe Plastic Deformation（SPD）methods are hot research techniques of preparation of bulk ultrafine-grained materials and strengthening the material properties currently .Among the various SPD methods, ECAPT that a new method of ECAP （Equal channel angular pressing）organic integrates with TE（Twist extrusion）was key introduced for the frist time ,and experimental study on ECAPT technology for deformation and densification of pure Al and Mo powder sintered materials were carried out and the results were compared with that of ECAP in this paper.The results show that there have more effective and more stronger severe plastic deformation during the process of ECAPT and it improves the ability of material’s plastic deformation and strengthens the material properties.In forming process of
(3) ECAPT technology may be efficient preparation of fine-grained material,improve the comprehensive mechanical properties of materials especially powder metallurgy materials.
Materials Science Engineering A,168(2),141(1993)
Advanced Materials Research, 2009,79-82:1239-1241.

School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan ,Hubei , 430072, P.
China Key words: PLSDM; Structural Coefficient; Engineering experience calibration method Abstract: When confirming the partial factors in design formulas by the probability-based limit states design method (PLSDM), the structural coefficient can determined by two methods.
On one hand, the structural coefficient is determined by the engineering experience calibration method, which is calculated by decomposition of the safety coefficient in the former specifications SD144-85.
(or material combination) and load effect combinations Total Averaged Material Combination Averaged Material Combination Averaged Penstock A3 Steel Plate 1.5970 16Mn Steel Plate 1.5603 1.5786 Suggested Values for Structural Coefficient Table 5 summarizes the structural coefficients determined by the engineering experience calibration method and by the reliability analysis method.
*Corresponding author: School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, E-Mail:whuyzh@163.com REFRENCES: [1] Zhao Guo-fan, Jin Wei-liang, Gong Jin-xin.

Results demonstrate that parameters of materials can be calibrated efficiently from the DSM and that key aspects for this calibration are noise, sensitivity (structural and sensor), and the finite element model representation.
In this last case, one of the materials was steel and the properties for the other were determined from an inverse problem experiment.
Tsikos: ASCE Journal of Engineering Mechanics (2000), p 711-724
Lozano: Smart Materials and Structures (2003), p 776-784
Roesset: Computer Aided Civil and Infrastructure Engineering (2007), p 265-281

Engineering change is an important and complex activity for manufacturing enterprises.
In order to improve the efficiency of engineering change, we proposed a method of EC propagation in collaboration environment.
Introduction Engineering Change (EC) is one of most important activities for manufacturing enterprises.
Engineering change is essentially a process that is caused by initial change and affecting different constrains.
Manufacturing Information Engineering of China, Vol. 37 (2008), p. 26 (In Chinese)

The key technology of the solar electric automobiles The application technology of solar energy electric automobile relates to photoelectric, electronic machinery, electronic, control, automotive engineering, mechanical, chemical and other aspects.
On the one hand, to reduce the quality of the body as the dominant ideology, use most lightweight materials to manufacture the frame, can use aviation materials.
References [1] Dingyue Chen, Rucheng Wang, Zhongcheng Xu, Modern manufacturing engineering (China) (2008) 134-137
[3] Jia-Sheng Hu, Dejun Yin, Yoichi Hori, Control Engineering Practice 196 (2011) 204-213
Karam, Solar Energy Materials and Solar Cells 94 (2010) 1314-1318.

Some materials are available for pulp capping procedure.
Birage, Advances in Pulp Capping Materials: A Review, IOSR J.
Hivarao, Recent Advances in Pulp Capping Materials: An Overview, J.
Ceramics Engineering and Science Proceeding 33 6 (2013) 7-10
El-Ghannam, Advanced bioceramic composite for bone tissue engineering: design principles and structure bioactivity relationship, J.

The Models of Supporting the Strategic Decisions on Engineering Products Competitiveness Anna P.
The products were assessed according to the following criteria: Y1 – relevance ratio of the solved engineering problem, Rp; Y2 – ratio of the solved engineering problem relevance to the programs of the most important technological development works, Pw; Y3 – complexity factor of the engineering problem, Cp; Y4 – the scope of application ratio of the solved engineering problem, Sa; Y5 – the scope of protective measures ratio of the solved engineering problem, Sp.
Applied Mechanics and Materials, 379 (2013) 207-213 [2] E.V.
Applied Mechanics and Materials,  682 (2014) 617-622 [3] A.
Applied Mechanics and Materials, 682 (2014) 623-630 [4] A.A.

Research and Application of Slope Stability Analysis Method based on Engineering Mechanics and Engineering Materials Shaojie Feng 1,2,a, Shiguo Sun1, Xuefang Zhao 1, Liang Tan 3 1 College of Architecture, North China University of Technology, Beijing, 100144, China 2 School of Soil and Water Conservation, Beijing Forestry University, Beijing,100083,China 3 China Building Technique Group Co.Ltd.
According to results of engineering practice, the result of 3D-Slope is accordance with actual engineering
Chinese Journal of Rock Mechanics and Engineering,(2007):1513-1528
Advanced Materials Research.Vols.518-523 (2012):4749-4752 [5] Shaojie Feng, Shiguo Sun.
China Mine Engineering. (2007):41-44