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When speakers are teaching, demonstrating and reporting, they just need to press the red laser wireless Laser pointer on the keyboard with a flick of the hand to indicate the key contents. 
For example, they will use a lens or mirror object focused laser pointer to emit high energy laser, which can break balloons or ignite the paper and combustible material. 
Study on the projection display of light pen interaction technology. mechanical engineering, Journal of Mechanical & Electrical Engineering, 77-79 (2009)

This technology is widely used in the analysis of commercial data, science and engineering data, athletic competitions data and so on to realize the demand from different fields such as construction of predictive models, analysis and interpretation of data and auxiliary decision-making [1].
The research of medicinal theory mainly includes the potency and toxicity, material basis, compatibility and application of medicine and so on.
Acknowledgements The national natural fund project: The basic research on essential oil composition of traditional Chinese medicine and membrane interaction mechanism and eeeeeexclusive membrane preparation(81274095), it is supported by the key discipline "Software Engineering" of Nanjing University of Traditional Chinese Medicine.

Technical Characteristics and Application for A New Type of 8-Roll Cold Rolling Mill Peng Liu1,a, Hongbo Li1,b and Zhiqian Shen1,c 1Capital Engineering & Research Incorporation Limited No.7 jiananjie Beijing Economic-Technological Development Area, 100176, China, aliupeng@ceri.com.cn, blihongbo@ceri.com.cn, cShenzhiqian@ceri.com.cn Keywords: 8-roll, Cold rolling mill, Stand, Back-up roll, Work roll, Strip shape.
Table 1 The main technical data for the new type of 8-roll cold rolling mill Technical item Technical data Raw Material Q215, Q235, 08F, SPHC Incoming Strip thickness 1.5~4.0[mm] Incoming Strip width 800~1280[mm] Delivery Strip thickness 0.2~2.0[mm] Delivery Strip width 800~1280[mm] Work roll diameters Φ265~Φ295[mm] Intermediate roll diameters Φ450~Φ485[mm] Backup roll diameters Φ520[mm] Rolling width 1450[mm] Rolling speed 800[m/min] (max) Rolling force 13000[kN] (max) The Technical Characteristics for the 8-roll Cold Rolling Mill The 8-roll cold rolling mill is different from the 4(6)-roll cold rolling mill.
The key technical problems in research The 8-roll cold rolling mill is different from the 4(6)-roll cold rolling mill.
Fig. 18 The device for the back-up single adjusting Fig. 19 The FEA calculation for the eccentric disks Summary The 8-roll cold rolling mill, with broad development prospects, is a new type of rolling mill which is completely independently developed by Capital Engineering & Research Incorporation Limited in China and it is the first one in the world.

Application and Benefits of the Virtual Reality Technique for Product Conceptual Design Chiuhsiang Joe Lin 1,a, Shiau Feng Lin1 , Rou-Wen Wang1 , Tien-Lung Sun2, Chin-Jung Chao3 , Wen-Yang Feng 3, Fengyi Tseng 3 1 Department of Industrial and Systems Engineering, Chung-Yuan Christian University 200, Chung Pei Rd., Chung Li, Taiwan 2 Department of Industrial Engineering and Management, Yuan-Ze University, 135, Yuan-Tung Rd., Chung-Li, Taiwan 3 Chung-Shan Institute of Science and Technology, Tao-Yuan, Long-Tan 325, Taiwan a hsiang@cycu.edu.tw Keywords: Conceptual Design, Computerized Visual Presentation, Image-Based VR Abstract.
The points and questions of Group C are mostly relevant to the indirect characteristics, such as feedbacks that the adjusting angles of armrests may not be enough, the height should also be adjustable, the material of the back of the chair, and so on.
Design for X (DFX): key to competitive, profitable markets, AT&T technical Journal, Vol. 69 (1990), p. 2-13

For the complexity of the problem and the shortcomings of existing research, the paper puts forward a new complex multi-objective and multi-constraint method to solve the high-speed transmission helical gear optimization problem by using variable-grain strategy [8] from coarse to fine and stepwise to refinement after considering the impact of the key parameters on the noise and ensuring the helical gear’s strength.
The material is 30CrMnT and the accuracy class is 7.
References [1] TONG Lingsheng, SHI Boqiang, and SHEN Yanhua, et al, “First-order reliability method based multidisciplinary design optimization on gear transmission,” Journal of Mechanical Engineering, vol. 46, no. 3, pp. 42-46, Feb. 2010
[2] Yan Fuwu, Wang Hongjian, and Tian Shaopeng, et al, “Multi-objective reliability optimization of transmission gear set based on NSGA-Ⅱ, ” Automotive Engineering, vol. 32, no. 3, pp. 234-237, 2010

Retrospective research: analysis of liver 31P magnetic resonance spectroscopy combined with support vector machine Qiang Liu1a, Shao-qing Wang1b*, Dong-yue Yu2c, Guang-ju Liang3d 1Shandong Medical Imaging Research Institute, Shandong Jinan 250021, China 2Shandong Zibo Prison Hospital, Shandong Zibo 255129, China 3XinTai City People's Hospital of Shandong Province, Shandong Xintai 271200, China aemail: 2002md@163.com, b*Corresponding author,email:2006wsq@163.com, cemail: fishlet@163.com, demail: liangguangju1@163.com Key words: Support Vector Machine(SVM), Magnetic Resonance Spectroscopy, Phosphorus, Hepatocellular Carcinoma(HCC) Abstract.
Introduction Magnetic resonance spectroscopy (MRS) technology have increasingly used in clinical application research in the field of medicine. 31P MRS technology can detect biochemical components and the change of energy metabolism of tissue organ of the body to diagnose in non-invasive, 31P MRS of the liver can check up in the process of hepatic metabolism important material [1-3], for assessment of the cell components testing parts change to judge cytology type, and to provide reliable basis for the correct diagnosis.This paper based on polynomial kernel function and RBF kernel function of support vector machine classifier for the classification of the liver 31P magnetic resonance spectrum data.
Qi: Computer engineering.
Xu: Computer engineering and design.

Experimental study on properties of side joint between superimposed slabs with lattice steel bars Xianguo Ye1, a, Kainan Yang1,b, Xun Chong1,c,*and Qing Jiang1,d 1School of Civil Engineering, Hefei University of Technology, Hefei 230009, China ahfuttjyxg@hfut.edu.cn, bykn584699924@126.com, cchongxun_sun@163.com, dahhfjq@163.com Keywords: superimposed slab; lattice steel bars; joint; static loading experiment Abstract: Mechanical properties of joint between superimposed slabs have a remarkable effect on the bending performance of the whole slab.
Introduction The semi-precast reinforced concrete superimposed slab which is suitable for industrialization of residential structure system has been favored by market and gradually put into engineering use.
Force transfer of joint in the superimposed slab and the shear of superimposed surface between the cast-in-place and the precast concrete are key problems.
Test specimens Material properties of specimens.

Materials and Methods Granite Varieties.
GRANITE KEY: AL, Albero; GA, Gris Alba; GM, Gris Mondariz; GR, Grissal; RP, Rosa Porriño; SV, Silvestre Vilachán; TP, Traspieles In selecting the materials to be tested, in order to obtain a representative sample we tried to ensure the greatest possible diversity in terms of response to cutting and textural parameters (grain size, degree of alteration and porosity).
Given the large number of parameters that can affect cutting and the complexity of the problem, we tested the materials by varying only those parameters which most affect the cut: linear cutting speed (m/min) and cutting depth (mm).
Zhou: Study on the fuzzy ranking of granite sawability, Journal of Materials Processing Technology 139, 277-280 (2003)
Malkin: Forces and energy in circular sawing and grinding of granite, Journal of Manufacturing Science and Engineering, Transactions of the ASME 123 (1), 13-22 (2001)

A Review on PEO based Solid Polymer Electrolytes (SPEs) complexed with LiX (X=Tf, BOB) for Rechargeable Lithium Ion Batteries Karuppasamy K*, Antony R, Alwin S, Balakumar S, Sahaya Shajan X* Centre for Scientific and Applied Research, School of Basic Engineering and Sciences, PSN College of Engineering and Technology, Tirunelveli, Tamil Nadu, India.
The suitable method can be selected on the basis of materials involved and the forms of sample to be prepared.
Tokyo, Part II, 1974, Japan Society of Precision Engineering, Tokyo
Sohn, Ferroelectric materials as ceramic filler in solid composite polyethylene oxide‐based electrolytes, J.
Sekhon, Relative role of plasticizer and nano size fumed silica on the conductivity behaviour of PEO-NH4PF6 polymer electrolytes, Indian Journal of Engineering and Materials Sciences, 12 (2005) 557-562

A kinematic analysis of video footage taken for this purpose was used to identify the key parameters of this phenomenon.
Materials and Methods The vehicle used for this study is a Traxxas E-Maxx Brushless Model 3908 (Fig. 1a), a 520mm long, 5.2 kg radio-controlled truck capable of reaching velocities of approximately 30 m/s.
The image sequences captured with the high speed camera were imported in Vannier-Photolec's MotionTrack video analysis software for tracking the key points on the vehicle.
Kaplan, LEO satellites: attitude determination and control components; some linear attitude control techniques, Master of Science in Electrical and Electronics Engineering Thesis, Middle East Technical University, 2006
Andrews, The uncertainty of the pendulum method for the determination of the moment of inertia, Medical engineering & physics, vol. 28, no. 8, pp. 837–841, 2006.