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Online since: August 2013
Authors: Qiu Xiang Liu, Gui Xia Dong, Yuan Yuan Li, Bi Yan Zhu, Di Wu
Effect of Sintering Temperatures and Ba/Ti ratio on Dielectric Properties of BaTiO3 Ceramic Yuanyuan Li1, a, Guixia Dong2,b , Biyan Zhu3,c, Qiuxiang Liu4,d , Di Wu5,e 1,2,3,4 Hebei Province Key Laboratory of Inorganic Nonmetallic Materials, Hebei United University, Tangshan 063009, China; 5 WuXi Noble Electronics Co.
Introduction Recently, ferroelectric ceramics such as BaTiO3 have become some of the most promising materials for electronics.
Rekas, in: Electronic Ceramic Materials. edited by J.
Microelectronic Engineering, Vol.66 (2003), p: 855
Fundamentals of Materials Science, Wuhan University of Technology Publising, (China, 2008)
Online since: June 2017
Authors: Ke Tong, Fei Ye, Hong Bo Xv, Jin Mei Liu
Effects of Uniaxial Strain on the Structures of Vacancy Clusters in FCC Metals Fei Ye*, Hongbo Xv, Jin Mei Liu, Ke Tong Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China *yefei@dlut.edu.cn Keywords: Atomistic simulation, Vacancy, Cluster, Uniaxial strain.
Introduction A large number of defects, such as stacking faults, self-interstitials, and vacancies can be created during high-speed deformation or irradiation on materials [1-7].
Was, Fundamentals of Radiation Materials Science: Metals and Alloys, 1st ed., Springer, New York, Berlin, Heidelberg, 2007
Online since: October 2013
Authors: Qiang Lu, Hang Tao Liao, Xiao Ning Ye, Chang Qing Dong
Overview of Bio-oil Upgrading Via Catalytic Cracking Hangtao Liao*1,a, Xiaoning Ye1,b, Qiang Lu*1,c, Changqing Dong2,d 1National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China 2Suzhou Institute of North China Electric Power University, Suzhou 215123, China aliaohangtao@126.com, byexiaoning1990@126.com, cqianglu@mail.ustc.edu.cn, dcqdong1@163.com Keywords: Biomass; Fast pyrolysis; Bio-oil; Upgrading; Catalytic cracking Abstract.
Hence, bio-oil a low-grade liquid fuel, shown as highly oxygenated, acid and corrosive to common materials, thermally and chemically instable, as well as non-miscible with petroleum fuels [3].
In this way, the catalysts can be mixed with biomass, mixed with the fluidizing materials, or used individually as the fluidizing materials.
Recently, mesoporous materials have been prepared as mild catalysts to upgrade biomass fast pyrolysis vapor.
Acknowledgements The authors thank the National Key Technology R&D Program (2012BAD30B01), Program for New Century Excellent Talents in University (NCET-10-0374), 111 Project (B12034), Technical Program of Suzhou (SYG201216), Philosophy and Social Science Projects of Beijing (11JGA010), and Fundamental Research Funds for the Central Universities (11ZG08, 12ZP02, 13ZP02) for financial support.
Online since: October 2015
Authors: Kun Hao Zhang, Zi Yan Zhao, Ying Zhou, Feng Gang Bian
Synthesis and detection the thermal expansion of CdSe quantum dots from room temperature to 700oC Ziyan Zhao1, Ying Zhou1, Fenggang Bian2, *, and Kunhao Zhang3, * 1 State Key Laboratory of Oil and Gas Reservoir and Exploitation, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China, 2 * Department of Materials and Energy Science, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China 3 * Department of Life Science, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China Email: bianfenggang@sinap.ac.cn, zhangkunhao@sinap.ac.cn Keywords: CdSe quantum dots, thermal expansion, In situ XAFS Abstract In this paper, CdSe quantum dots (QDs) with particle size ca. 4.5 nm were prepared by a facile chemical route.
Due to the size below the excitation radius of bulk materials, they are easy to present quantum confinement effect.
They demonstrated that after injection of the starting materials, the nucleation occurs abruptly and the CdSe nuclei concentration reaches a maximum and then declines rapidly. [20] H.
Online since: November 2015
Authors: Yu Bo Chen, Dan Ying Zuo, Chang Hai Yi, Wen Qi Shi
Study on Chlorine Bleaching-washing of Denim Fabric under Ultrasonic Conditions Wenqi Shi1, Danying Zuo2, Yubo Chen1 and Changhai YI 2* 1School of fashion,ShaanXi Institute of International Trade & Commerce, Xi'an712046, PR China 2School of Material Science and Engineering, Wuhan Textile University, Wuhan 430073, PR China * Corresponding author: Changhai YI; E-mail: 283734552@qq.com Key words: Ultrasonic, denim, sodium hypochlorite, K/S value.
In recent years, due to its advantages of saving the raw materials and a relatively fast speed of processing, the ultrasound technology has been more and more widely applied in the wet processing of textiles, including bleaching, desizing, dyeing, scouring and so on [3-6].
Tang et al. [7] explained that ultrasonic initiated the interaction heat effect in the liquid media, which enhanced the molecular kinetic energy of the bleaching solution,augmented the fibrous material defect density area increase and exposed more reactive center.
Experimental Materials.
The ultrasonic-assisted chlorine bleaching washing could accelerate the washing speed and achieved a good bleaching effect, and could simultaneously save more energy and raw materials.
Online since: April 2010
Authors: Jian Feng, Chang Rui Zhang, Qing Fu Gao, Jun Zong Feng, Wei Wu, Yong Gang Jiang
Mechanical Properties of Aerogel-Ceramic Fiber Composites Gao Qing-fu a, Feng Jian, Zhang Chang-rui, Feng Jun-zong, Wu Wei and Jiang Yong-gang State Key Laboratory of Advanced Ceramic Fibers & Composites, College of Aerospace and Materials Engineering, National University of Defense Technology, ChangSha 410073, China a nudtgqf@sohu.com Keywords: Aerogel; Mechanical property; Fiber volume fraction Abstract.
At first, the fibrous materials were pre-shaped using a mold and aerogel precursors were poured into the mold so as to cover the fibers.
The applications of fiber-aerogel insulation composites require that materials have satisfactory mechanical strength not only at ambient temperature but also at high temperature.
The reason for mechanical strength increasing of fiber-aerogel insulation materials at 600 °C is as follows.
Online since: April 2011
Authors: Wit Grzesik, Marian Bartoszuk
Grzesik1, b 1Opole University of Technology, Department of Manufacturing Engineering and Production Automation, 45-217 Opole, 5th Mikolajczyka St., Poland a m.bartoszuk@po.opole.pl, b w.grzesik@po.opole.pl Keywords: cutting process, cutting temperature, FDA modelling.
Other sources of computation errors can be disturbances of heat flow at the tool-chip interface or temperature-dependent thermal properties of the tool and workpiece materials.
The numerically predicted values of the average interface temperature were compared with measured values obtained by means of natural thermocouple method which was calibrated for selected pair of tool and workpiece materials.
Machining and Machinability of Materials, Vol. 6 (2009), No. ½, p. 43-53
Grzesik: Advanced Machining Processes of Metallic Materials, (Elsevier, Amsterdam 2008).
Online since: January 2015
Authors: Qing Wei Zhang, Wei Xie, Bao Hong Shen, Qiang Xie, Xiao Liang Li
Industrial & Engineering Chemistry Research, 2005, 44(19): 7366-7372
Journal of Industrial and Engineering Chemistry, 2009, 15(2): 190-195
Materials Letters, 2008, 62(4-5): 645-647
Chemical Engineering Journal, 2012, 180: 354-363
Chemical Engineering Journal, 2010, 160(1): 57-62.
Online since: October 2014
Authors: Erlend Alfnes, Natalia Iakymenko, Maria Kollberg Tomassen
Computers & industrial engineering, 2009. 57(3): p. 1033-1042
Frontiers of Mechanical Engineering, 2012. 7(3): p. 256-267
Journal of Engineering and Technology Management, 1995. 12(1): p. 27-55
Computers & industrial engineering, 1991. 21(1): p. 29-33
Journal of Engineering and Technology Management, 2001. 18(2): p. 157-184
Online since: July 2003
Authors: Alessandro de Stefano, Dionisio Bernal
Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Diagnosis of Structural Damage from Non-Stationary Output-Only Measurements Dionisio Bernal 1, Alessandro De Stefano 2 1 Associate Professor, Department of Civil and Environmental Engineering, 427 Snell Engineering Center, Northeastern University, Boston MA 02115, U.S.A bernal@neu.edu 2 Professor, Dipartimento di Ingegneria Strutturale e Geotecnica, Politecnico di Torino, C.so Duca degli Abruzzi 24, Torino, Italy, alessandro.destefano@polito.it Keywords: Modal Scaling, Flexibility, Damage Localization, DLV Abstract.
In civil engineering applications it is often necessary to perform the modal identification exclusively from output signals.
Introduction The development of robust techniques for fault detection and localization is an important goal in structural engineering.
[3] Bernal D. (2002), "Load Vectors for Damage Localization", Journal of Engineering Mechanics, ASCE, Vol.128, No.1, pp. 7-14
[5] Ceravolo, R., De Stefano, A., Molinari, F. (2001) Developments and Comparisons on the Definition of an Instantaneous Damping Estimator for Structures under Natural Excitation (Key Engineering Materials. 204-205, 2001, p. 231-240)
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