Search results

Bioactive gelatin-siloxane hybrids as tissue engineering scaffold L.
Thus, those hybrid materials are proposed to find application as novel bioactive and biodegradable scaffolds in bone tissue engineering. 1.
Introduction The expanding field of tissue engineering applications has accelerated the need of materials which are tissue compatible, biodegradable and with mechanical properties similar to the target tissues [1].
However, the current scaffold materials are not bioactive.
A number of studies on bioactive ceramics have indicated that in vivo formation of Ca-P-rich layer and surface bone-like apatite is a key step for formation of direct bond between bone and in the bone-bonding behavior of these materials, and that SBF well reproduces in vivo reaction of the materials [11].

AISIO1 steel work-piece material is chosen and the material parameters are taken from[6],and the tool substrate material is M2 steel with TiN/Si3N4 coatings.
Calzavarini, Turning of metal matrix composites, Journal of Materials Processing Technology 119 (2001) 257–260
Bartoszuk, Finite element modeling of temperature distribution in the cutting zone in turning processes with differently coated tools, Journal of Materials Processing Technology 164–165 (2005) 1204–1211 [6] K.
Gao, Finite element simulation of the orthogonal metal cutting process for qualitative understanding of the effects of crater wear on the chip formation process, Journal of Materials Processing Technology 127(2002) 309-324
Manufacturing science and Engineering, MED-vol.10,ASME,New York,1999, pp. 301-307.

The Design of Injection Mold for the Handset Based on Reverse Engineering Huai Xing Wen1,a, Qian Xin Wei2,b College of Electrical and Mechanical Engineering 845 mailbox Shaanxi University of Science & Technology,710021 Xi’an Shaanxi China awenhx@sust.edu.cn,bweiqianxin0514@163.com Key words: Reverse engineering, 3-D scan, Surface reconstruction, Mold design Abstract.
Reverse engineering Profile Reverse Engineering is also known as reverse design.
The key link of the Reverse engineering is the pretreatment, and the result directly affects the quality of post-reconstruction model.
The material of the plastic part was ABS.
Zhang: The Key Technology and Application of the Reverse Engineering, 1672-6413 (2010) No.4 P.0194, In Chinese

At present, the design of composite material compression performance mainly considers a large safety factor, and a compression failure assessment method that can meet the needs of reliable engineering applications is still a challenge and a key issue that the engineering community urgently needs to solve.
In order to better utilize the mechanical properties of composite materials, it is necessary to conduct compression performance research, providing a basic basis for engineering design.
The use of this model is relatively cumbersome and not convenient for practical engineering applications. 2.9.
Fiber microbuckling finite element (FMB FE) model The above analytical models are all aimed at a specific material system or specific failure mechanism, and are not universally applicable in engineering applications.
At present, the design of composite material compression performance mainly considers a large safety factor, and a compression failure assessment method that can meet the needs of reliable engineering applications is still a challenge and a key issue that the engineering community urgently needs to solve.

Design Key Points for High Power LED Encapsulation Zhanfeng Zhao*1, a, Juan Ye 2,b 1 Department of Mechanical Engineering, Wenzhou Vocational & Technical College, Wenzhou, 325035, China 2 Shengli Oil & Gas Pipe Holdings Limited, Hong Kong, China azfronty@qq.com, bgraceye@slogp.com Keywords: Light emitting diodes, High power, Encapsulation materials, Reliability Abstracts.
LED performance was significantly improved because of the improvement of encapsulation design and materials properties.
At present, the most commonly used materials are epoxies and the silicones.
The key points for the thermal design for the LED encapsulation are the chip arrangement, materials selection, the process control and the heat sink design.
Conclusion LED encapsulation involved the several disciplines knowledge and technologies, e.g. optics, electronics, thermal engineering and reliability engineering.

Study on Improving the In-Class Teaching Ability of Young Teachers in Science and Engineering Universities and Colleges Guiqing Hea Xiaoyi Fengb Northwestern Polytechnical University, Xi’an710072, China aguiqing_he@nwpu.edu.cn, bfengxiao@nwpu.edu.cn Key words: Science and engineering universities and colleges, young teachers, in-class teaching ability Abstract: With young teachers as the study object and with the aim to improve their in-class teaching ability, this paper conducts studies centering on the weaknesses of young teachers in science and engineering universities and colleges, i.e. their severe lack of teaching experiences and their mistaking scientific research capabilities for teaching ability.
Lecture notes are not just copied information of teaching materials.
Instead, they are extracted from teaching materials, but more flexible and applicable.
Therefore, a teacher cannot simply repeat what teaching materials say, improvise at liberty, speak generally without key points or cover all aspects.
l Gain new knowledge through reviewing learnt materials and put emphasis on coherence.

Typical Materials’ Abrasion Rules and Failure Lives Prediction of Key Parts for Breech Mechanism Based on Virtual Prototype HuiBin Hu1,2,a, LiJun Cao1,b, XinWen Cao2,c, ShuXiao Chen 2,d, Yan Sun 2,e 1Shijiazhuang Mechanical Engineering College, Shijiazhuang, Hebei Province, China 2Shijiazhuang Army Command College, Shijiazhuang, Hebei Province, China ahuhuibin_bin@163.com, bcaolijun_jun@163.com, ccaoxinwen@126.com, dchenshuxiao@163.com, esunyan@163.com Keywords: Abrasion Rule, Failure Life, Prediction, Breech Mechanism, Virtual Prototype, Abstract.
Key parts’ load spectrum can be obtained based on virtual prototype.
Pin-on-disc friction and abrasion testing machine is designed and adopted to obtain typical materials’ abrasion rules.
PcrMo is the most frequent material in breech mechanism.
A Framework for Semiqualitative Reasoning in Engineering Applications.

The New Technology of Engineering Ceramic Machining by Electrode Micro-detonation X.L.
Yu 4 1 National Key Laboratory for Equipment Remanufacturing, Academy of Armored Forces Engineering, Beijing, China, 100072, tianxli719251@sohu.com 2 National Key Laboratory for Equipment Remanufacturing, Academy of Armored Forces Engineering, Beijing, China, 100072, yjf-beijing@163.com 3 National Key Laboratory for Equipment Remanufacturing, Academy of Armored Forces Engineering, Beijing, China, 100072, liuhacha@163.com 4 Faculty of Engineering, Ningbo University, Ningbo, China, 315211, yuaibing@126.com Keywords: Electrode micro-detonation machining, Engineering ceramic, Degenerative layer, Cracks, Performance and mechanism analysis Abstract.
The engineering ceramic material machining with low cost is realized successfully with the devices.
Mohri: Journal of Materials Processing Technology, vol. 149 (2004) p: 124-128 [3] X.P.
Lu: Journal of Materials Processing Technology, vol. 129 (2002), p: 152-156 [5] S.R.

Some examples for key characteristics: all geometry related dimensions, function - relevant information (such as water tightness, performance, torque, noise), decorative properties, surface properties, shape and positional tolerances, information on heat treatment and material, information on tooting, threading, surface treatment information, information on welding, information on work piece edges, specifications relating to flammability/ combustibility of materials, heat resistance, impact resistance, flexural strength of materials, characteristics related to the process (pull/push/shear forces, starting power).
A simple definition of key characteristics is mentioned by Jack B.
Another definition of key characteristics is mentioned by Anna C.
Drăghici, Integrated Product Engineering (in Romanian), Eurobit Publishing House, Timișoara, 1999
Thornton, Key Characteristics to cut variation and manufacturing costs, focus on key characteristics, AME, 1996, pp. 14-19

Application Research of Industrial Design Based on ALIAS Reverse Engineering Li Xiang1,a , huang junmi1 1Anhui Polytechnic University, wuhu 241000, china alixiangah@yeah.net Key words: reverse engineering, industrial design, ALIAS software, system integration Abstract.
This kind of development engineering is also generally called Forward Engineering.
Figure.1 Reverse engineering flow chart Reverse engineering usually executes the copying and development work of model.
The reversing engineering based on original shape or material object, because of its rapid development method, greatly shortens the development period of the product, so there is a wide technical demand in design and manufacture region.
Summarize the design method of car body shape, introduce the meaning of reverse engineering, and elaborate the work flow and key technique applying reverse engineering to make car overlays mold model design.