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Online since: May 2014
Authors: Ming Jen Tan, Yong Sheng Wang, Beng Wah Chua, Emin Bayraktar
YSZ-reinforced Mg-based amorphous composites: Processing, Characterisation & Corrosion Yongsheng WANG1,a, Ming Jen TAN1,b, Beng Wah CHUA 2,c , Bayraktar Emin3,d 1 School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 2Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075 3 Supmeca-Paris, School of Mechanical and Manufacturing Engineering, France a wang0058@ntu.edu.sg b mmjtan@ntu.edu.sg c bwchua@SIMTech.a-star.edu.sg d bayraktar@supmeca.fr Key words: Magnesium, composite, corrosion, crystallinity, metallic glass Abstract MgZnCa amorphous matrix-based composites whereby reinforcing the matrix with suitable reinforcements to achieve enhanced mechanical, biomedical and anti-corrosion properties have been studied here.
Yet, this intrinsic characteristic has spurred recent research on developing Mg-alloys as a novel material for biodegradable implants (e.g. stents).
Principles of corrosion engineering and corrosion control.
Online since: August 2013
Authors: Xiao Peng Li, Shu Ying Liu, Zong Yan Wang, Wei Zhou Wang, Bang Chun Wen
Harmonious Design Method of Product and Its Applications Bangchun Wena, Xiaopeng Lib, Shuying Liu, Weizhou Wang, Zongyan Wang School of Mechanical Engineering & Automation, Northeastern University, Shenyang, China abcwen1930@vip.sina.com, bxpli@me.neu.edu.cn Keywords: Harmonious Design, external environment of products, internal element of products Abstract: There are much more disharmonious problems in the process of product design because the environment factory of the product design could not be considered fully and systematically.
The key problems of harmonious design based on society environment are: 1) Disharmonies between products and political environment: The basic national conditions that China is a populous socialism country must be considered in product design.
Inputting 5 Condition information getting and its control Assistant function SC 1 Securities of hum. & mach. 2 Reliability of system 3 Working durability 4 Adaptability of material 5 Fixedness of configuration 6 Harmlessness to environ. 7 Artistic figure 8 Economic design OC 1 Practicability of efficiency 2 Running stability 3 Superiority of index 4 Powerful of machine 5 Measurability and monitor 6 Diagnosable for fault 7 Amenity of operating 8 Economic service.
[2] Pahl G, Beitz W, Engineering design: a systematized approach.
Journal of engineering for Industry, 1978, 100(5): 127-130
Online since: March 2011
Authors: Zhi Shui Yu, Zhi Yan, Xia Zhang, Hong Chen, Qiu Hui Liao
Structure, optical, temperature dependent electrical properties of p-type conduction in N–Al codoped Zn1-xMgxO films by ultrasonic spray pyrolysis Xia Zhang1,a, Qiuhui Liao1,b, Hong Chen2,c, Zhi Yan1,d, Zhishui Yu1,e 1 Department of Material Engineering, Shanghai University of Engineering Science 333 Longteng Road, Songjiang, Shanghai 201620, People’s Republic of China 2 Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, Department of Physics, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030, P.
In spite of a large structural dissimilarity between them, the similarity in ionic radius between Mg2+ (0.57Å) and Zn2+ (0.60Å) allows some replacement in either structure.[5] Since Ohtomo et al.[6] realized hexagonal-phase Zn1-xMgxO thin films by pulsed laser deposition (PLD) in 1998, their structural and optical properties have been well studied.[7,8] However, their electrical properties were seldom reported because of the rather high resistivity of intrinsic n-type Zn1-xMgxO thin films and the obstacle of realizing p-type conduction,[9] in spite of their great and urgent key importance in p-n junction optoelectronic devices.
Acknowledgments This work was supported by Startup foundation (09-10) of Shanghai University of Engineering Science, Excellent Youth Scholars Program (GJD-09010) and Shanghai Leading Academic Discipline Project (J51402) of Shanghai Municipal Education Commission.
Online since: September 2015
Authors: Zai Lin Guan, Zong Dong He, Cong He, Cao Jun, Ullah Saif
Modeling of Order Oriented Planning for Printed Circuit Board Assembly Line SAIF Ullah1,3, a, GUAN Zailin1,b, HE Zongdong1,2,c HE Cong1,d, JUN Cao1,e 1 State Key Lab of Digital Manufacturing Equipment and Technology HUST-SANY Joint Lab of Advanced Manufacturing, Huazhong University of Science and Technology (HUST), Wuhan, China 2 SANY Heavy Industry Co., Ltd., Changsha, China 3 Department of Industrial Engineering, University of Engineering and Technology, Taxila, Pakistan asaifullah47@yahoo.com, bzlguan@hust.edu.cn, chezd@sany.com.cn, dmrhecong@qq.com, e564428746@qq.com Keywords: Order Oriented Planning, Printed Circuit Board, Assembly Line Abstract.
In assemble to order (ATO) enviroment, the companies have stock of material for their products in inventory and when customer orders are recieved by them, they just take the parts from their stock and assemble them according to the customer requirement.
[3] Wu Yongzhong: PhD thesis, department of indusstrial engineering, The Hongkong Ploytechnic Univeristy, (2008)
Online since: July 2011
Authors: Dong Xin Huang, Shou Xin Zhu
The Formation of Virtual Enterprise: A Resource Based Perspective Dongxin Huanga, Shouxin Zhub School of Information & Engineering, Huzhou University, Huzhou, China ahdx@hutc.zj.cn, bzsx@hutc.zj.cn Keywords: Virtual enterprise, Inter-organizational cooperation, Resource based view Abstract.
Introduction “Core competence”, “skills” and “resources”, which are key words of resource-based view of the firm, are included in the VE definition of NIIIP and PRODNET II, but as these research project’s main body is mainly the personnel who are engaged in the engineering technology research, and these, together with rapid development and swift expansion of information, networking technologies in the 1990’s, caused these research projects mainly focused on how to realize inter-organizational cooperation from perspective of engineering technologies, i.e., focused on studying the integration issue of heterogeneous and distributed information systems.
Outsourcing means more than just the purchase of raw material and standardized intermediate goods.
Online since: September 2005
Authors: X.-D. Zhou, W. Huebner, H.U. Anderson
Anderson Electronic Materials Application Research Center Department of Ceramic Engineering University of Missouri-Rolla Rolla, MO 65401 Corresponding Author: Xiao-Dong Zhou Zhou@umr.edu303 MRC Key words: Microstructure; CeO2; grain size; conductivity; purity.
This gives the materials scientist an opportunity to alter the properties of a given oxide by substituting different cations or varying oxygen content.
The impurities can function as acceptor dopants (such as Ca or lanthanide elements) and/or blocking materials (such as Si); the impurities can be resulted from raw materials, processing of ceramics, thin films or bulk, as well as being induced during measurement (7).
They found that raw materials with 99.5% purity possessed a higher conductivity than those with 99.999% purity CeO2.
RESULTS AND DISCUSSION 3.1 Size and Temperature Dependence of Impedance Spectra In polycrystalline materials, electronic properties, particularly conductivity, are influenced by the grain boundaries.
Online since: March 2019
Authors: Girro Jonn Rigor, Jamico Jamlang, Mica Therese Marañon, Terence Tumolva
Developing a Physically Cross-Linked Hydroxyethyl Cellulose Hydrogel for Wound Dressing Applications Jamico Jamlang1,a, Mica Therese Marañon1,b, Girro Jonn Rigor1,c and Terence Tumolva1,d 1Green Materials Laboratory, Department of Chemical Engineering, University of the Philippines, Diliman, Quezon City 1101 Philippines ajyjamlang@up.edu.ph, bmica.maranon@yahoo.com, cgirrorigor@gmail.com, dtptumolva@up.edu.ph Keywords: wound dressing, hydroxyethyl cellulose, hydrogel, diffusion.
This promotes granulation, epithelialization, and autolytic debridement, the three key processes in wound healing.
Natural hydrogels, on the other hand, are made up of natural polymer-based materials, such as collagen, alginate, chitosan, and dextran.
Materials and Methods Materials.
Madaghiele: Materials Vol. 2009 (2009), pp. 353-373
Online since: June 2011
Authors: Ju Shui Lai, Li Chen, Xiao Niu Fu, Jian Sun, Zhi Feng Ying, Jia Da Wu, Ning Xu
Synthesis of crystalline ZnSe nanowires by pulsed laser deposition for application in polymer-inorganic solar cells Ju-Shui Laia, Li Chen, Xiao-Niu Fu, Jian Sun, Zhi-Feng Ying, Jia-Da Wu and Ning Xub Key Laboratory for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433, People’s Republic of China a082021019@fudan.edu.cn bningxu@fudan.edu.cn Keywords: ZnSe nanowires; pulsed-laser deposition; Polymer-inorganic solar cell.
Online since: July 2011
Authors: X.L. Liu, Z.R. Pang, W.S. Wang
Wang3 1Yellow River Conservancy Technical Institute, Kaifeng, China 2Beijing Science and Technology University, Beijing, 100083, P R China 3School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China alxl3661125@126.com, bpangzirui@163.com Keywords: Vitrified wheel, CBN abrasives, Performance Abstract.
Ultra high speed wheel manufacturing technology is a key technology to ultra high speed grinding.
Because No.5# regularity of abrasive particles, angularity, and smoothness was the worst morphology, so the mechanical property of material No.5# abrasive is also the worst.
Among them, the overall performance of 4 # material over ABN200; No.1#, No.2#, No.3#, No.4# of the static strength, impact toughness and thermal shock toughness was weaker than the foreign representative is not abrasive.
Online since: October 2013
Authors: Suo Gang Jia, Yu Zhang, You Yu Wan, De Lin Teng, Yuan Zhao Jia, Peng Sun
State Key Laboratory of Oil and Gas Reservior Geology and Exploitation, SouthWest Petroleum University, Chengdu, Sichuan, China tlswpu@163.com KEYWORDS: Thick formation; Multistage pump-off propped fracturing; Treatment parameters optimization ABSTRACT: Based on the proppant index, a production forecast method for thick oil-bearing formation fracturing was deduced.
(4) (5) Where Rn = annual sales revenue (excluding ground rent, operating labor costs and tax charges); i = the discount rate; VH = increased production (the difference between the fracturing and no fracturing); SH = crude oil price; fr = ground rent to the total cash flow share; Fo = operating labor costs to the total cash flow share; Ft = tax charges to the total cash flow share; I = fees of fracturing materials, pumping operation and machinery.
Journal of Natural Gas Science and Engineering 14:91–107
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