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Online since: December 2012
Authors: Xiao Dong Zhang, Ruo Ling Dong, Hong Hui Shi, Wei Chen
Numerical Simulation of Hole Shapes Effect on Film Cooling Effectiveness and Aerodynamics Loss over Flat Plate Ruoling Dong1,a, Honghui Shi1,b, Wei Chen1,c and Xiaodong Zhang1,d 1College of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China adongruoling@163.com, bhhshi@zstu.edu.cn, cchenweihz@yeah.net, dzhaoxiaodong.2009 @gmail.com Keywords: Numerical simulation, Shaped holes, Flow field, Film cooling effectiveness, Aerodynamics loss.
It is the melting points of material that obstacles the fuel efficiency maximization in the gas turbine.
Film cooling effectiveness is associated with the characteristics of flow field, while the hole-shape is the key factor for the flow.
Online since: June 2012
Authors: Jun Deng, Yan Ni Zhang, Wei Feng Wang, Shi Rong Li, Shuang Hou
Experimental Study on Infrared Spectrum Characteristics of Coal in Low Temperature Oxidation Yanni ZHANG1,a, Jun DENG1,b, Weifeng WANG1, Shirong LI1,2, Shuang HOU1 1Key Laboratory of Western Mine Exploitation and Hazard Prevention of Ministry of Education, College of Energy Science & Engineering, Xi’an University of Science and Technology, Xi’an, P.R.China 710054. 2Yangquan Fire Bureau, Yangquan, P.R.China 045000 aemail: zyn2099@xust.edu.cn;bemail:853106030@qq.com Keyword: low temperature oxidation; infrared spectrum characteristics; functional group Abstract: Coal spontaneous combustion is a complex procedure of physical and chemical changing, in which the macro characters is the reflection of micro changes of coal molecule structure in low temperature oxidation.
The relation between the microstructure change and spontaneous combustion properties of coal in the process is discussed. 2 Infrared Spectra (IR) Experiment Principle and Condition 2.1 The Experiment Principle Infrared spectrum is the absorption spectrum caused by vibration energy level transition generated by the bonding atoms in the molecules of material that absorbs the infrared radiation.
The key functional groups which control the coal and oxygen compounding is understood and the coal spontaneous combustion mechanism is reveals. 2.2 Experimental Conditions Coal Samples Preparation.
Online since: October 2011
Authors: Wu Ang Ren, Xiao Chang C. Wang, Peng Kang Jin
School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, No 13 Yanta Road, Xi’an 710055, China Key Words Humic acid, online optical monitoring, fluorescence technique, complexation, sweep coagulation Abstract:Using fluorescence and optical monitoring techniques, the process of coagulation of natural humic acids (HA) was studied paying attention to the interaction of aluminium and HA.
Material and Methods Raw water The HS for this study were isolated from lake sediments in Xi’an, China.
Online since: August 2011
Authors: Xin Feng Zhu, Bin Li, Jian Dong Wang
Acknowledgment This work is supported by the Jiangsu Key Laboratory of Environmental Material and Engineering (K08021), National Natural Science Foundation of China (No.61070133), the Natural Science and Technology Foundation of Jiangsu Province of China (No.BK210311) and the Natural Science Foundation of Jiangsu Province of China (No.
Online since: June 2013
Authors: Yan Mei Chen, Zhi Hua Chen, Kai Bing Yu
Using High Precision Tracer Test to Identify the Concentrated Runoff Channel in Mine Areas with Karst Water ——Example of Fankou Lead-zinc Mine, China Yanmei Chen1, a Zhihua Chen2, b Kaibing Yu3, c 1Graduate School of China University of Geosciences, Wuhan, Hubei, China 2 Environment School of China University of Geosciences, Wuhan, Hubei, China 3Hubei Province Traffic Planning and Design Institute, Wuhan, Hubei, China aymchen831219@126.com, bzhchen@cug.edu.cn, ccug51@163.com Key words: Fankou Lead-zinc Mine; high precision tracer tests; karst water; curtain Abstract.
Study site Fankou mine locating in Shao Guan, Guangdong Province, China, is an important industrial raw material base in China and the largest lead-zinc mine of Asia.
Hydrogeology and Engineering Geology,2003(5)123-127.
Online since: May 2012
Authors: Yun Yuan, Gang Liu, Lin Shen Wang
Analysis on the Approach Route of Overall Planning from the visual angle of “Figure-Ground Relation” Yun Yuan1,a Linshen Wang 1,b and Gang Liu2,c 1School of Civil Engineering and Architecture, University of Jinan, Jinan, Shandong, 250022, China 2 The centre of Jinan urban plan consultation,Jinan, Shandong, 250001, China acea_yuany@ujn.edu.cn, bcea_wangls@ujn.edu.cn,clrumu@126.com Keywords: Approach Route, Figure-Ground Relation, Controlled Thinking Overall , Planning of City and Countryside.
It is verified seemingly what Ray Thomas pointed out in the preface of Tomorrow’s Garden City edited in 1985: “all kinds of comments on Howard are at the expense of key ideas”.
Actually viewing, there are two misunderstandings in pursuit of garden city thought: one is to downsize “garden city”, that is to excessively attach importance to simulation of material space and step on formalized road, which widely exist in so-called perfect residence planning; the other is to make “garden city” poetized, that is to make the concept of garden city placed in the countryside and pursue “free and relaxed, careless and comfortable” life.
Online since: October 2011
Authors: Qian Ting Hu, Guo Qiang Cheng, Wen Bin Wu
Deformation Analysis for Coal and Gas Outburst Cavity Qianting Hu1,2, Wenbin Wu1,2,a and Guoqiang Cheng3 1National Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling, Chongqing,400037,China 2Chongqing Research Institute of China Coal Technology & Engineering Group Corp, Chongqing, 400039, China 3Key Laboratory of Mining Disaster Prevention and Control, Ministry of Education, Shandong University of Science and Technology, Qingdao 266510,China a sdwenbinwu@gmail.com Keywords: Coal and Gas Outburst, Outburst Cavity, Transient Dynamics, Finite Element.
Mohr-Coulomb criterion meets the yield and failure properties of the geotechnical material.
Online since: August 2004
Authors: Zheng Gan Zhou, Juan Chen, Zhen Gang An
Citation & Copyright (to be inserted by the publisher) Processing, Archiving and Management of Digital Image from X-Ray Flat-Panel Detector1 Zhenggan Zhou, Juan Chen and Zhengang An 1 School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, P.
In addition, client server can search, query and identify the testing results of all radiographic testing rooms, and correlative technical personnel may grasp testing results of key parts and the running state of important equipments without going out.
Sensitive Material, 1999, (1):31-34(in Chinese)
Online since: June 2011
Authors: Meng Meng Li, Yun-Ze Long
Fabrication of self-assembled three-dimensional fibrous stackings by electrospinning Mengmeng Lia and Yunze Longb,* College of Physics Science, Qingdao University, Qingdao 266071, China ameng-meng.li@hotmail.com, byunze.long@163.com Key words: Self-assembly; three-dimension; stacking; electrospinning; nanofibers.
With the solvent evaporated away, fibers were randomly deposited on the collector. [1-5] By now, numerous polymer-based nanofibers, as well as metal, ceramic and glass nanofibers have been prepared by electrospinning, and their potential applications in optoelectronics, sensors, catalysis, textiles, filters, fiber reinforcement, tissue engineering, drug delivery, and wound healing etc. have also been extensively explored (for a review see Refs. 1 and 6-9).
An electrospun planar-aligned TiO2 nanowire array produced by using a specially designed collector system was introduced into hybrid photovoltaic cells, leading to substantial enhancements in the photoinduced current and power conversion efficiency. [11] Li et al. have reported a simple yet effective method that uses epoxy as an adhesive material to produce junctions between nanofibers.
Online since: April 2011
Authors: Murat Aydın, Antonio Ferreira Miguel, M.B. Acikgoz, Baris Akay
Aeronautical Engineering, Istanbul Technical University, 34469 Maslak/Istanbul, Turkey 2Geophysics Centre of Évora, Rua Romao Ramalho 59, 7000-671 Évora, Portugal 3Dept.
Physics, University of Évora, PO Box 94, 7002-554 Évora, Portugal 4Institute of Energy, Istanbul Technical University, 34469 Maslak/Istanbul, Turkey a acikgozbe@itu.edu.tr, b baris.akay@gmail.com, c afm@uevora.pt; daydinmurat@itu.edu.tr Key words: Airborne pathogens, dispersion, aircraft cabin, sneezing, coughing, 3D simulation Abstract.
These droplet nuclei are the residue of solid material (infectious agent) left after drying up of a droplet.
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