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Online since: September 2014
Authors: Yu Qi Kan, Shao Jun Zhang, Da Peng Huang
(f) RCC-M has the special requirement to the execution process evaluation of new material and to the material used in NI key components and new manufacturing technology.
b) Domestic raw material suppliers can only provide materials of general requirements; it is difficult to meet the technical requirements, quality requirements and inspection requirements of nuclear materials.
c) Localization of nuclear power materials still remains to be done.
Countermeasures and suggestions In view of the existing problems of procurement and manufacturing of nuclear power materials, we need to do a lot of work: (a) Establish Chinese nuclear power standards and nuclear materials system America ASTM has a set of material system on materials which are used in the nuclear reactor pressure vessel.
American society of mechanical engineers, 2004 Edition.[11] 杨武.
Online since: November 2007
Authors: Hajime Ohgushi, Motohiro Hirose, Mika Tadokoro
In the field of tissue engineering for bone regeneration, there have been many studies that examined in the bone forming ability of the porous biomaterials with mesenchymal stem cells (MSCs).
To promote the tissue engineering approach in clinical situation, there is a need for the establishment and standardization of evaluation methods for measuring the in vivo bone forming ability.
Our results showed that the cell seeding process for the fabrication method of MSCs/materials composite influenced the number and distribution of the MSCs in the materials, therefore the process is a key to show new bone formation which derived from the seeded MSCs.
Afterwards, the HA materials were rinsed two times with PBS and the ATP content of attached MSCs on each material was measured.
Mesenchymal Stem Cells for Tissue Engineering, in: Culture of Cells for Tissue Engineering, edtied by G Vunjak-Novakovic, RI Freshne/John Wiley & Sons, Inc., Chaper1, 23-59 (2006) [5] Tadokoro M, Kotobuki N and Ohgushi H: Key Eng.
Online since: September 2012
Authors: Xue Jun Wang, Tao Lou, Guo Jun Song, Li Yong Lv
Preparation and characterization of layer structured porous chitosan scaffold for tissue engineering Song Guojun1, a, Wang Xuejun1, b, Lou Tao1, c and Lv Liyong1, d 1 College of Chemistry, Chemical Engineering & Environmental Science, Qingdao University, Qingdao 266071, China asongguojunqdu@126.com, bwangxjlt@yahoo.com.cn, ctaolou72@yahoo.com.cn, dlaiyanghai@163.com Keywords: chitosan; scaffold; tissue engineering.
The scaffold is very promising for tissue engineering.
Experimental methods Materials.
Mechanical strength is key property to support the cell growth, and maintain the integrity of scaffolds during in vitro and in vivo cell growth.
The morphology, porosity and compressive modulus of the scaffold suggest that the chitosan scaffold may be very promising for tissue engineering.
Online since: January 2014
Authors: Chun Xin Zhong, Shi Yao Xiao, Jin Long Liu, Wei Zhang
Hydrodynamic characteristic is an important reference to select vegetation material of ecological revetment engineering.
"Conventional" revetment construction widely adopted cement, concrete, steel and other hard materials.
Therefore, the treatment to hydrophilic-landscape zone of Wantang is a combination of vegetation and reinforcement materials.
Tianyang Section of Naji Reservoir Regarding to hydrogeological characteristics of Tianyang and development of native plants, bottom-protection zone is engineering-oriented, and key-protection zone is based on engineering, supplemented by biological alternative.
River engineering and ecological rehabilitation[J].
Online since: August 2011
Authors: Yong Zhen Zhang, Li Xiao Jia, Yong Ping Niu, San Ming Du, Jian Li
Influence of Test Conditions and Couple Materials on Frictional Characteristic of Polymeric Materials Lixiao Jia 1,2,3,a,Yongzhen Zhang 2,b,Yongping Niu 2,c,Sanming Du 2,d and Jian Li1,e 1 Wuhan Research Institute of Materials Protect, China Academy of Machinery Science and Technology, Wuhan, Hubei, 430030, China 2 Key laboratory of material tribology, Henan University of Science and Technology, Luoyang, Henan, 471003, China 3 Department of Mechanical & electrical Engineering, Luoyang Institute of Science and Technology,Luoyang, Henan 471023, china 4 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science , Lanzhou, Gansu, 730000,China ajialx2001@163.com, byzzhang@mail.haust.edu.cn, cypniu@163.com, ddsming@mail.haust.edu.cn, elijianwuhan@163.com , Keywords: polymeric materials, test conditions, couple materials, friction coefficient Abstract.
Test apparatus and method The experiment was conducted in the key laboratory of material tribology in Henan University of Science and Technology.
Test materials.
Fig.1 Influence of test conditions on friction coefficient of polymeric materials Influence of couple materials on polymeric materials.
Friction coefficients of the three polymeric materials coupled with different materials are shown in Fig.2.
Online since: November 2012
Authors: Yun Gang Wei
The engineering education concept of “engineering with a big e.”
", four key words could be refined out, that are “engineering (higher engineering education services for the engineering practice),comprehensive (higher engineering education requires the multi-disciplinary background and the engineering system as the studying object), practice (this is the soul and fundamental of the higher engineering education), and literacy (it should cultivate the students’ professional ethics in engineering activities, human feelings, and the social responsibility, etc.)”.
Four links include labs, practice bases, practice teaching materials and the practice teaching evaluation, etc..
For the practice teaching materials, it is also divided into three levels, i.e. the practice teaching syllabus and commitments, the professional equipment database, and the comprehensive item pool, etc. with the purpose of setting up a resources sharing platform to satisfy the practice teaching.
The Engineering Education Needs the “Engineering with a Big E.”.
Online since: October 2010
Authors: Shao Gang Hu
With the rapid industrial development, pipe material forming is demanded towards the more sophisticated, lightweight, integrated and diversified .pipe hydroforming technology is gradually becoming the new advanced manufacturing technology, which can develop weight loss, conservation materials, and energy-efficient lightweight structural parts.
Compared to traditional pipe materials forging, casting, stamping and welding of the main processing technology, which can reduce the tooling cost, shorten production preparation period.
The technology uses a liquid medium to replace the die or punch to deliver loader, in order to achieve pipe special shaped cross-section shape, which not only reduces the mold cost and shorten production preparation cycle; in the high pressure liquid acting, pipe only happen a non-cutting metal volume plastic transfer, significantly reducing the consumption of raw materials; in hydraulic forming, metal materials more dense grain structure, the metal flow line will not be cut off.
The upcoming metal pipe two-port to set up a sealed device in the mold, the primary role is to drain the oil and oil-filled channels, in the mean while block metal pipe to prevent leakage of hydraulic oil, promote metal pipe to move into the mold in order to supple materials.
[3] Wu Xiao Yu: Manufacturing Engineering Design (2008) No.1
Online since: October 2012
Authors: Bai Qing Zhang, Han Xu, Wen Han, Zhi Cheng Huang
Study on the fatigue life of fully-automatic hydraulic press pull rods based on finite element and mechanical materials Zhicheng huang1, a Baiqing Zhang2, b Han Xu3, c Wen Han4, d 1,2,3 ,4 College of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute Jingdezhen333001, China a, b, c, d Email: huangwu555@sina.com Keywords: fatigue life fully-automatic hydraulic press pull rod finite element wall and floor tiles mechanical materials Abstract: Fully-automatic hydraulic press is one of the key mechanical equipments of ceramic wall and floor tiles production line.
Introduction Fully-automatic hydraulic press is mainly used for pressing of ceramic tiles, and it is one of the key mechanical equipments of ceramic wall and floor tiles production line.
The four pull rods of the frame withstand the all work force when it works, so it is the key compartment of the frame, and its work performance has an important impact on the structural performance of the entire automatic hydraulic press.
The 3D model of the pull rod is established by suing CAD software Pro / Engineer, and then imports it into ANSYS program to analysis through the ANSYS data access module (DDA).
ANSYS engineering analysis software application examples.
Online since: June 2013
Authors: Dao Bin Sun
According to the function keys can be divided into the following categories: digital key, control key adjusting key processing and proofreading.
Acknowledgement This work was supported by NSF of Heilongjiang Province of China (QC2011C106) and open project of State Key Laboratory Breeding Base of Dielectrics Engineering (DE2011A04).
Zhang: Computer Engineering and Applications, Vol.30 (2005), p.105 [3] X.G.
Zhuang: Man machine engineering (Beijing: Beihang University press, 2002) [4] J.
Chen: Packaging Engineering Vol.28(2007), P.122
Online since: January 2011
Authors: Qing Jin Wang, Jing Wei Liu, Jing Wu
Theory Background Kansei Engineering.
Concept of Kansei Engineering.
The tenth international human engineering conference in 1988 officially named it “Kansei Engineering” [3].
Kansei Engineering Development and Application.
Li: New Concept of Design: Kansei Engineering.
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