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Online since: June 2014
Authors: Zhi Bin Li, Miao Jia, Ji Wei Hu, Chao Zhou, Yi Miao Lin, Ling Yun Li, Xian Fei Huang
Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University,Guiyang, Guizhou, 550001, China a lizhibin0816@126.com, *b Corresponding author: jiweihu@yahoo.com, jwhu@gznu.edu.cn, cfelixchou613@163.com, d yimiaolin2013@163.com, e lingyunli@126.com, f hxfswjs@gznu.edu.cn, gjiamiao20101@163.com, Keywords: Mining wastewater; Antimony; Speciation; The modified Tessier method; Abstract.
Instruction With the wide application of the antimonial compounds in the field of chemical engineering and medicine, the antimony pollution becomes increasingly serious to the environment [1, 2].
Materials and Methods The three water samples were collected in March (No.1), July (No.2) and November (No.3) in 2013 from Ban-po Antimony Mine in Guizhou province (as showed in Fig. 1), which were then stored in polyethylene plastic bottle and brought to the laboratory.
Online since: August 2014
Authors: Ting Ting Lu
At present, the large library chooses the suitable for our situation of domestic and foreign library integrated management system, however, due to the regional differences and the limitation of manpower, material resources, financial resources, some small and medium-sized library integrated management system is still in its infancy, the library funding is limited, it is difficult to choose the size, function is complete, the high cost of the management system, price cheap, function and is poorer, lack of management professional, not enough.
If from the material, the color classification of printed bar code, bar code, can be divided into black and white color, light bar code and magnetic bar code bar code, etc.
Management information systems development methods mainly include life cycle method, prototype method, structured method and object-oriented method and computer aided software engineering method, etc. 3.
So the conceptual structure design is the key to the design of management information system. 4.4 system physical design At present, the main structure of management information system (client/server structure, hereinafter referred to as C/S mode.
Online since: October 2015
Authors: Hasan Zuhudi Abdullah, Maizlinda Izwana Idris, Te Chuan Lee
Abdullah1,c 1Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
Ding, Surface Modification of Titanium, titanium alloys, and related materials for biomedical applications, J.
Koshy, C.C Sorrell, Anodic oxidation of titanium in mixture of β-glycerophosphate (β-GP) and calcium acetate (CA), Key Eng.
Online since: January 2010
Authors: Yao Xiang Li, Li Chun Jiang
Application of ANN Algorithm in Tree Height Modeling Yaoxiang Li1, a Lichun Jiang2, b 1Key Laboratory of Forest Sustainable Management and Environmental Microorganism Engineering of Heilongjiang Province Northeast Forestry University, Harbin, China, 150040 2 College of Forestry Northeast Forestry University, Harbin, China, 150040 a yaoxiangli@nefu.edu.cn bjlichun@nefu.edu.cn Keywords: Artificial neural network, tree height modeling, MATLAB Abstract: Back-propagation (BP) algorithm of artificial neural network (ANN) was applied to tree height prediction of Larch plantation in northeast China by taking logsigmoid function of logsig and linear function of purelin in Matlab as the neural functions.
Materials and Methods Data were collected from Dailing forest area, Heilongjiang province, China.
The number of hidden neurons is the key to BP network.
Online since: September 2007
Authors: Jin Haeng Lee, Hyung Yil Lee, Tae Hyung Kim
Failure Assessment Diagrams of Semi-elliptical Surface Crack with Constraint Effect Hyungyil Leea, Jin Haeng Leeb and Tae Hyung Kim c Department of Mechanical Engineering, Sogang University, Seoul 121-742, Korea a hylee@sogang.ac.kr, bjinhaeng@sogang.ac.kr, ckthmax@sogang.ac.kr Key Words: Semi-elliptical surface crack; J-integral; T-Stress; Line-spring finite element; Constraint; Failure assessment diagram and curve.
The material ASTM A710 [6] is considered.
Failure Assessment Curves with Constraint Effects It is desirable to derive a more realistic Failure Assessment Curve (FAC) for accurate assessment of hardening ASTM A710 material.
Online since: October 2010
Authors: De Lian Yi, Jian Guo Wang, Xiao Yan Qi, Lin Wu
A Novel Synthesis of Acetophenone Benzopyran Derivative Xiaoyan Qi1, a, Lin Wu1,b,* ,Jianguo Wang2,c ,Delian Yi1,d 1 Applied Chemistry Research Institute, Wuhan University of Science and Technology, Wuhan 430081,China 2 School of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang 332005, China aqxy_gzl@163.com, bwulin65@163.com, cjgwang117@163.com, dyidelian@163.com Keywords: Benzopyran; Lewis acid; synthesis; mechanism Abstract.
The key synthesis of benzopyran ring substituted A ring and B ring flavonoid products is how to find a more convenient way to synthesis acetophenone benzopyran and benzaldehyde benzopyran.
The reaction condition is mild, raw materials are easy acquired, and the yield is high.
Online since: May 2004
Authors: Ivaldo L. Ferreira, Claudio A. Siqueira, Carlos A. Santos, Amauri Garcia
Santos 1 and Amauri Garcia 1 1 Department of Materials Engineering, State University of Campinas - UNICAMP, P.O.
In the context of a model of the inverse segregation occurring in a binary alloy (but it deals with multi-component alloy), he demonstrated that his approach could easily handle the key features in the coupling thermal and solutal fields, e.g. eutectic reactions and also is accurate, i.e. the proposed numerical scheme and his associated code accurately solved the governing partial differential equations that make up the model.
Online since: May 2012
Authors: Yu Chen, Long Cang Shu
Regional land subsidence vulnerability assessment based on grey correlation analysis Yu Chen1,2 a and Longcang Shu1,b 1 State key laboratory of hydrology-water resource and hydraulic engineering, Hohai University, Nanjing 210098, China 2 Department of Geosciences, Virginia Tech, Blacksburg, VA 24060, USA a rainchen393@hotmail.com, b lcshu@hhu.edu.cn Keywords: land subsidence, vulnerability assessment, grey correlation analysis (GCA), Xixi-Chengnan district Abstract.
Materials and Method Study Area.
Online since: January 2012
Authors: Xiao Jun Wang, Qi Kun Xu, Lu Qing Qi
Advanced Treatment of Textile Wastewater for Reuse by Ozonation-Biological and Membrane Processes Xiaojun WANGa, Qikun XUb, Luqing QIc State key laboratory of Industrial belts pollution control and ecological restoration, School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China acexjwang@scut.edu.cn (corresponding author), bXuqikun1129@yahoo.cn, c qiluqingqlq@qq.com Keywords: Ozone; Biological aerated filter (BAF); Reverse osmosis (RO); Membrane Abstract.
[2] Nihel Ben Amar etc, Comparison of tertiary treatment by nanofiltration and reverse osmosis for water reuse in denim textile industry, Journal of Hazardous Materials. 170 (2009) 111-117
Online since: October 2011
Authors: An Gui Li, Zhi Hua Wang, Yu Jiao Zhao, Xiao Tan Hou
Numerical Study on Indoor Air Quality of Commercial Kitchen in China Xiaotan Hou1,2,a, Angui Li 1,b, Zhihua Wang 1,3,c, Yujiao Zhao 1,d 1Xi’an University of Architecture and Technology, Shaanxi, Xi’an,710055, China 2Hefei University of Technology, Tunxi Road No.193 Hefei, 230009, Anhui.China 3Xi'an Jiaotong University, 28 Xian Ning Road, Xi'an 710049, China awaterhxt@126.com, b liag@xauat.edu.cn, cZHWang3123@stu.xjtu.edu.cn, dasaall@sina.com Key words: CFD, Commercial kitchen, IAQ, Displacement ventilation Abstract: Indoor air quality of commercial kitchen is investigated and analyzed through velocity, temperature, humidity, and CO2 concentration under different air change rate and supply air temperature. the best air change rate is 30 times per hour and air supply temperature is 301.15K for kitchen, the mean value of the minimum velocity and standard deviation is 0.410m/s and 0.129 respectively, the maximum of the average concentration of CO2 is 659.78ppm, which is less than the
Numerical Simulation of IAQ under Up-suction Exhaust Hood in Commercial Kitchen[J].Advanced Materials Research Vols. 250-253 (2011) pp 3228-3231
[7]Nazaroff WW,(2004).indoor particle dynamics. indoor Air,14(Suppl7):175-183 [8]Lai ACK(2004).Modeling of airborne particle exposure and effectiveness of engineering control strategles.Building and Enviroment ,39:599-610 [9]Long CM,Suh HH,Koutrakis P(2000).Characterization of indoor particle source using continuous mass and size monitor .Journal of the Air&Waste Manage Association ,50:1236-1250 [10]Lai ACK(2004).Modeling of airbone particle exposure and effectiveness of enginerring control strategies .Building and Environment ,39:599-610 [11]Merayer C,Wang Z,Kleinerman RA,Wang L,Brenner AV ,Cui H ,Cao J,Lubin JH (2002).Cooking oil fumes and risk of lung cancer in women in rural Gansu,China .Lung Cancer ,35:111-117 [12]T.P.
Showing 69421 to 69430 of 74748 items