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Online since: June 2011
Authors: Leonardo González-Reyes, I. Hernández-Pérez, Francisco Carlos Robles Hernandez
Hernández-Pérez2* 1University of Houston, Engineering Technology, Houston, TX 77004 USA 2Universidad Autónoma Metropolitana-A, Departamento de Ciencias Básicas, Av.
México 2*lgr@correo.azc.uam.mx, 2* ihp@correo.azc.uam.mx Key words: anatase, characterization, catalysis, coarsening, spectroscopy, grain growth Abstract.
In addition, sonochemical treatment has been reported as a successful methodology to produce nanostructured materials [20-22].
Experimental Synthesis and Materials A mixture of 150 ml of titanium (IV) tetraisopropoxide ([(CH3)2CHO]4Ti) of commercial grade (97 wt% pure), acetone (30 mL) and methanol (30 mL) are subjected to sonochemical treatment.
TiO2 accessory minerals: coarsening, and transformation kinetics in pure and doped synthetic nanocrystalline materials.
Online since: June 2008
Authors: Bo Qin Gu, Ye Chen, D.S. Zhu
Chen: Key Engineering Materials Vol. 353-358 (2007), p. 1243 [2] M.
Valadez-González: Composites Part B: Engineering Vol. 56 (2005), p. 579 [5] J.H.
L Kang: Materials & Design Vol. 24 (2003), p. 639 [12] S.
Durman: Materials Science and Engineering A Vol. 262 (1999), p. 214- [14] E.J.
The 9th International Conference on Engineering Structural Integrity Assessment, Beijing (2007), p. 803
Online since: January 2006
Authors: Lung Ming Fu, M.F. Hung, R.H. Ma, Chia Yen Lee, Chien Hsiung Tsai, Chiufeng Lin, Che-Hsin Lin
Fu 5,d� 1 Department of Mechanical and Automation Engineering, Da-Yeh University, Taiwan 2 Department of Vehicle Engineering, National Pingtung University of Science and Technology, Taiwan 3 Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Taiwan 4 Department of Mechanical Engineering, R.O.C.
Military Academy, Taiwan 5 Graduate Institute of Material Engineering, National Pingtung University of Science and Technology, Taiwan a chiufeng@mail.npust.edu.tw, bchtsai@mail.npust.edu.tw cchehsin@mail.nsysu.edu.tw, dloudyfu@mail.npust.edu.tw Keywords: barrier, MEMS, micromixer, mixing efficiency, microfluidic system Abstract.
Miniaturization offers key advantages including the following: higher throughput by way of parallelization, reduced sample volumes, shorter analysis times, the possibility for in situ operation, and reduced operation and manufacturing costs [3].
In a concept commonly referred to as "Lab-on-a-chip", a wide variety of functional components are integrated serially on a microchip in order to carry out a complete assay of a material.
Mechanical Engineering Congress and Expositio, MEMS 2000 Vol. 2 (2000), p. 489
Online since: May 2013
Authors: Xun Guo Zhu
So that, it was rapidly applied in wide range of geotechnical engineering since its emergence.
The bolt axial load and the skin friction distribution graphics were analyzed according to the engineering example.
Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2003, 129(12): 1138~1150 [7] Yu T.Z, Xian C.J.
Chinese journal of rock and engineering, 2003, 22(6): 1024~1028
Chinese journal of geotechnical engineering, 2006, 28(9): 1124~1129
Online since: November 2014
Authors: Xiao Dong Song, Long Zhe Jin
Application Model Analysis on Automatic System of Fire Detection, Alarming and Extinguishment in Crude Oil Storage Tank Song XiaoDong 1, aJin LongZhe 2, b 1,2 School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China a,bsongxiaodong828@sohu.com Keywords: Fire automatic monitoring system, crude oil storage tank, model, PNN Abstract.
Introduction The paper carries out safety evaluation research on crude oil tank farm and transformation of key technology.
It sets up flame detection material and temperature probe in the interior crude oil storage tank and establishes flame probe on the top of storage tank.
Conclusion This paper carried out renovation work on the crude oil tank farm safety evaluation research and key technology, presents a multi sensor fire detection model, including that fire feature combination selection module, training module and fire supervision and detection module.
Online since: July 2013
Authors: Ji Hai Zhang, Fan Ren
Only analyzing the reliability of its supply chain through scientific method and finding out the key evaluation indexes can experts take proper measures to optimize the oil logistics network as well as to improve the whole supply chain’s reliability.
In recent years, the problem of supply chain reliability has been paid more and more attention because of demand uncertainty, especially after Wen Chuan Earthquake in which there are many supply chain problems about material distribution under emergency.
Yuanhong Liu, Ming Luo and Zhongying Liu defines reliability from the view of reliability engineering theory as the magnitude of trouble-free working ability of supply chain system, referring the capability to normally run within certain time in perfect competitative market [2].
Third, find out the key indicators and establish the evaluation index system.
Online since: September 2014
Authors: Yong Mei Yu, Yun Bo Xu, Feng Fang, Yang Wang, Xiang Lu, Guang Ming Cao, Cheng Gang Li, Y.X. Zhang
Research on the abnormal grain growth of Goss grains in strip-cast 4.5%Si grain-oriented electrical steels Yuanxiang Zhang1, a, Feng Fang1, Yunbo Xu1, Yang Wang1, Xiang Lu1, Guangming Cao1, Chenggang Li1, Yongmei Yu2 1 The State Key Laboratory of Rolling & Automation, Northeastern University, Shenyang 110004, China 2 School of Mechanical Engineering, Shenyang University of chemical technology; 11street, shen yang economical&technological development area, Shenyang, liaoning 110142, P.R.China aredyuanxiang@126.com Key words:twin-roll strip casting; grain-oriented 4.5%Si steel; secondary recrystallization; texture; magnetic properties Abstract.
Introduction The grain oriented silicon steel with high permeability and low core loss is an idea material for electrical device.
Online since: July 2011
Authors: Thomas Pardoen, Jean Pierre Raskin, Benoit Olbrechts, Bertrand Rue, Denis Flandre
Routes Towards Novel Active Pressure Sensors in SOI Technology Benoit Olbrechts1,3, a, Bertrand Rue1, 3, Thomas Pardoen2, 3, Denis Flandre1, 3 and Jean-Pierre Raskin1, 3 1 Institute of Information and Communication Technologies, Electronics and Applied Mathematics (ICTEAM) 2 Institute of Mechanics, Materials and Civil Engineering (iMMC) 3 Research Center in Micro and Nanoscopic Materials and Electronic Devices (CeRMiN) Université catholique de Louvain, Louvain-la-Neuve, BELGIUM abenoit.olbrechts@uclouvain.be Key words: Thin multilayered dielectric membranes, residual stress, finite elements modeling, piezoresistance, piezoMOS effect, MEMS, smart sensors.
Material physical parameters.
Material constants *measured at UCL, **from [15], ***from [16], in italic, adjusted values according to simulation results.
Materials Stress (MPa) Young’s Mod.
[15] Information on http://www.memsnet.org/material/ [16] Information on http://web.mit.edu/6.777/www/matprops/pecvd_sio2.htm and /apcvd_sio2.htm
Online since: June 2011
Authors: Arash Montazeri, Alireza Khavandi, Jafar Javadpour, Abbas Tcharkhtchi
An investigation on the effect of sonication time and dispersing medium on the Mechanical properties of MWCNT/epoxy nanocomposites Arash Montazeri 1,a, Alireza Khavandi2,a , Jafar Javadpour3,a, Abbas Tcharkhtchi4, b a School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, 16844 Tehran, Iran b Laboratoire d’ingénierie des matériaux, ENSAM-Paris, 151 bd de L’Hôpital, Paris, France 1A_Montazeri@iust.ac.ir, 2Khavandi@iust.ac.ir, 3Javadpour@iust.ac.ir,4 Abbas Tcharkhtchi@paris.ensam.fr Key Words: Nanocomposite, Multi-wall Carbon Nanotube, Sonication time, Dispersion, Mechanical Properties.
Carbon nanotubes have excellent mechanical and electrical properties, and are also a good reinforcing material for composite materials.
MWCNT have unique atomic structure, very high aspect ratio, and extraordinary mechanical properties, making them ideal reinforcing materials in nanocomposites [4].
Materials The multi-walled carbon nanotube (MWCNT) used in this study was supplied by Research Institute of Petroleum Industry (RIPI).
To emphasize the fact that MWCNT can act as reinforcing materials in composite samples, we calculated the Young modulus of CNT/epoxy composite, by using the Halpin Tsai equation.
Online since: December 2013
Authors: You Heng Huang, Zhe Huang
Then these row materials of iron and steel scrap are sent to large further processing and distribution center or specialized scrap subsidiary that belongs to steel company, thus pooling most of the iron and steel scrap before they are reused.
Purified by sorting and cleaning, steel scrap are reprocessed into various reusable row steel materials based on requirements of steel company and directly distributed to blast furnaces.
Its a key point to choose a right push-pull boundary of iron and steel supply chain.
The only thing that can reflect differentiation is that, as resource of steel manufacturing process materials, the after-processing iron and steel scrap must be distributed according to special proportion and steel plant requirement.
References [1] Shaowen Sun, Chao Tan: Logistics Engineering & Management September 2010, p. 103-105, (in Chinese)
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