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Online since: December 2012
Authors: Mo Jie Sun, Hai Feng Zhang, Hong Hong Wang
Effect of Ca2+ and Fe3+ Addition on Nitrification-denitrification Process in a Membrane Bioreactor
Mojie Sun1,a, Honghong Wang1,b and Haifeng Zhang1,c
1School of Chemical Engineering, Northeast Dianli University, Jilin, Jilin, 132012, China
asmoj@sina.com, blqxwhh@163.com, czhftju@163.com
Keywords: membrane bioreactor, calcium ion, ferric ion, nitrification-denitrification
Abstract.
Materials and Methods Experimental Set-up.The experimental set-up is shown in Fig. 1.
For ferric ion, a removal rate of 70% was obtained at dosage of 50mg/L, however, a decrease was seen when the concentration continued to increase, as shown in Fig.2(c).This may be explained that ferric ion was an essential electron carrier in the oxidation-reduction reaction of the cytochrome and ferredoxin, which played a key role in the process of electron transfer.
Materials and Methods Experimental Set-up.The experimental set-up is shown in Fig. 1.
For ferric ion, a removal rate of 70% was obtained at dosage of 50mg/L, however, a decrease was seen when the concentration continued to increase, as shown in Fig.2(c).This may be explained that ferric ion was an essential electron carrier in the oxidation-reduction reaction of the cytochrome and ferredoxin, which played a key role in the process of electron transfer.
Online since: September 2013
Authors: Cai Jun Liu, Wu Jin Zhang, Jie Ma
Asynchronous Permanent Magnet Coupler Hydraulic Coupler and Performance Analysis
Liu Caijun1, Ma Jie1, Zhang Wujin2
1School of Mechanical and Electronic Engineering, Zaozhuang University
2Zaozhuang intellectual property protection and assistance center, Zaozhuang
Lcjczy@163.com
Keywords: asynchronous; permanent magnetism; magnetic; coupling torque
Abstract.
Scraper conveyor often started with full load, so the overload protection safety is very important for the scraper conveyor, starting torque, heavy-duty scraper conveyor need higher in the delivery of materials in the process of starting, so full of more difficult[1].
The two is able to significantly reduce the transmission system by starting impact, prolong the service life of key parts; also can greatly shorten the time of starting current impact, save energy and prolong the service life of motor.
Scraper conveyor often started with full load, so the overload protection safety is very important for the scraper conveyor, starting torque, heavy-duty scraper conveyor need higher in the delivery of materials in the process of starting, so full of more difficult[1].
The two is able to significantly reduce the transmission system by starting impact, prolong the service life of key parts; also can greatly shorten the time of starting current impact, save energy and prolong the service life of motor.
Online since: May 2011
Authors: Xi Xi Ma, Jian Jun Yuan
Study On The Leaching Of Sodium Nitrate From Nitratine
Xi XI MA a , JIANJUN YUAN b,
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University
of Science and Technology, Tianjin
amaxixideyouxiang@yahoo.cn, bjj_yuan@tust.edu.cn
Keywords: Nitratine; Sodium Nitrate; Leaching
Abstract.
Materials The raw nitratine sample was taken from the XinJiang Province, China and Table 1 presents the main chemical components of the nitratine.
Tang, et al: Study on Spray Irrigation of Heap Leaching, volume 15 of China Mining Magazine, Vol. 15, 76-78(2006) [3] Y. xi, et al: Study on The Factors Influencing the Recovery of Ore Heap Leaching and Their Optimization, Mining R&D, Vol. 25, No. 5, 19-22(2005) [4] Lizama H M, Harlamovs J R, McKay D J, et a1: Heap leaching kinetics are proportional to the irrigation rate divided by heap height, Minerals Engineering, Vol. 18, No. 6, 623-630(2005) [5] L.F.
Materials The raw nitratine sample was taken from the XinJiang Province, China and Table 1 presents the main chemical components of the nitratine.
Tang, et al: Study on Spray Irrigation of Heap Leaching, volume 15 of China Mining Magazine, Vol. 15, 76-78(2006) [3] Y. xi, et al: Study on The Factors Influencing the Recovery of Ore Heap Leaching and Their Optimization, Mining R&D, Vol. 25, No. 5, 19-22(2005) [4] Lizama H M, Harlamovs J R, McKay D J, et a1: Heap leaching kinetics are proportional to the irrigation rate divided by heap height, Minerals Engineering, Vol. 18, No. 6, 623-630(2005) [5] L.F.
Online since: January 2005
Authors: X. Zhang, Guotai Tan, Zhao Hui Chen
Magnetotransport Behaviors in Electron-doped Manganese Oxide
La0.9Te0.1MnO3
Guotai Tan
1, a, X Zhang
2,b and Zhenghao Chen
3,c
1
Department of materials science & Engineering, Tsinghua University, Beijing 100084, P.
Acknowledgements This study was supported by the grants from China Postdoctoral Science Foundation and the State Key Program of China (No.
Acknowledgements This study was supported by the grants from China Postdoctoral Science Foundation and the State Key Program of China (No.
Online since: April 2012
Authors: Lin Cheng, Xue Yang Zhang, Shu Mei Song, Ying Jiang, Vladimir Korchak, Rui Wang
Carbon Nano Tube Supported H3PW12O40 for Effective Adsorption of Nox
Lin Cheng1, Rui Wang1, a, Xueyang Zhang1, Shumei Song1, Ying Jiang1
and Korchak Vladimir2
1 School of Environmental Science & Engineering, Shandong University, Jinan 250100, China
2 Laboratory of Heterogeneous Catalysis, Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow 119991, Russian Federation
ree_wong@hotmail.com (corresponding author)
Keywords: Carbon nano tubes (CNTs); Surface modification; Support; Adsorption; NOx
Abstract.
Experimental Materials and chemicals.
Programs Foundation 20070422087), Shandong Provincial Research Award Fund for Excellent Young Scientists (2006BS08020), Shandong Provincial Key Technologies R & D Program (2008GG10006005) are gratefully acknowledged.
Experimental Materials and chemicals.
Programs Foundation 20070422087), Shandong Provincial Research Award Fund for Excellent Young Scientists (2006BS08020), Shandong Provincial Key Technologies R & D Program (2008GG10006005) are gratefully acknowledged.
Online since: July 2011
Authors: Yin Hai Lang, Nan Nan Wang, Fang Fang Cheng
Fuzzy Comprehensive Evaluation of Oil Spills Pollution Level for Offshore Platform
Yinhai Lang 1, 2, a, Fangfang Cheng 1, 2, b and Nannan Wang 1, 2, c
1College of Environmental Science & Engineering, Ocean University of China, Qingdao, 266100
2Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean
ayhlang@ouc.edu.cn, bchengfangfang_2008@126.com, cbolatuwangnan@126.com
Key words: fuzzy comprehensive evaluation; oil spill; offshore platform; analytical hierarchy process
Abstract: Oil pollution is considered as one of the pollutants that are harmful to the marine environment.
Hazardous Materials, 134(2006), p. 27-35
Hazardous Materials, 134(2006), p. 27-35
Online since: June 2011
Authors: Wan Jefrey Basirun, Yang Kok Kee, Koay Hun Lee
Malaysia University of Science and Technology, Department of Material Science and Engineering , GL33, Ground Floor, Block C, Kelana Square, No.17, Jalan SS7/26, Kelana Jaya, 47301 Petaling Jaya, Selangor, Malaysia.
a kk.yang80@gmail.com, b jeff@um.edu.my, c koayhunlee@gmail.com Key words: Electrodeposition, Tin, Ionic liquids Abstract The electrodeposition of tin from Tin (II) Methane Sulfonate (MSA) with varying concentration in air and water stable 1-Butyl-1-Methylpyrrolidinium Trifluoro-Methanesulfonate, (BMPOTF) ionic liquid at room temperature was studied.
This may allow thinner deposits to be used, thus reducing overall material and power consumption [2].
a kk.yang80@gmail.com, b jeff@um.edu.my, c koayhunlee@gmail.com Key words: Electrodeposition, Tin, Ionic liquids Abstract The electrodeposition of tin from Tin (II) Methane Sulfonate (MSA) with varying concentration in air and water stable 1-Butyl-1-Methylpyrrolidinium Trifluoro-Methanesulfonate, (BMPOTF) ionic liquid at room temperature was studied.
This may allow thinner deposits to be used, thus reducing overall material and power consumption [2].
Online since: January 2012
Authors: Lu Feng Yang, Bo Yu
Efficient Elastic Modulus Adjustment Procedure for Limit Analysis of Spatial Frame Structure
Bo Yu 1, a and LuFeng Yang 1,b
1 Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, School of Civil Engineering & Architecture, Guangxi University, Nanning, Guangxi, 530004
agxuyubo@gxu.edu.cn, blfyang@gxu.edu.cn
Keywords: limit analysis; elastic modulus adjustment factor; strain energy equilibrium principle
Abstract.
As shown in Fig. 2a, the storey height of spatial truss is H, while the span lengths for base and middle part are x1 and x2, respectively; the areas of cross section in all elements are assumed to be As=400 mm2; the yield stress and Young’s modulus of structural material are assumed to be sy=300 Mpa and E =2×105 Mpa, respectively; a is the load ratio.
The yield stress and Young’s modulus of structural material in both beam and column are assumed to be sy=300 Mpa and E=2.0×105 Mpa, respectively; the width and height of cross section in beam element are Bb=25 mm and Hb=40 mm, while in column element are Bc=30 mm and Hc=30 mm, respectively; the ratio of vertical load to horizontal one is assumed to be a.
As shown in Fig. 2a, the storey height of spatial truss is H, while the span lengths for base and middle part are x1 and x2, respectively; the areas of cross section in all elements are assumed to be As=400 mm2; the yield stress and Young’s modulus of structural material are assumed to be sy=300 Mpa and E =2×105 Mpa, respectively; a is the load ratio.
The yield stress and Young’s modulus of structural material in both beam and column are assumed to be sy=300 Mpa and E=2.0×105 Mpa, respectively; the width and height of cross section in beam element are Bb=25 mm and Hb=40 mm, while in column element are Bc=30 mm and Hc=30 mm, respectively; the ratio of vertical load to horizontal one is assumed to be a.
Online since: October 2011
Authors: Jia He, Qi Ming Li, Yi Zhang, Peng Li, Zhong Zhu Qiu, Wen Wen Guo
Acknowledgement
This paper is partly supported by Shanghai Science and Technology Commisson (09DZ1207200), the fifth Key Subject of Shanghai Education Commission(G51304) and the third phase of undergraduate education center constructin project of Shanghai Education Commisson
Nomenclature
γ empirical PV curve-fitting parameter
k Boltzmann Constant,1.38×10-23J/(K·mol)
TC cell temperature, K
I the cell terminal current, A
IL light generated current, A
Io diode reverse saturation current, A
V the output voltage
q the electron charge 1.602×10-19C
P panel power output, W
m number of parallel connected cells, dimensionless
N number of panels in surface, dimensionless
n number of series connected cells, dimensionless
DF daylight factor, %
Rs module series resistance
Ep luminance of the point or reference, lux
Ehext the external horizontal illuminance, lux
References
[1] Yu-ning Liu, Chao Chen.
Solar Energy Materials & Solar Cells, 2009,93:230-238
[7] Energy Plus engineering reference.
Solar Energy Materials & Solar Cells, 2009,93:230-238
[7] Energy Plus engineering reference.
Online since: January 2013
Authors: An Cheng Xu, Xi Fang Zhu, Gong Chen
ajackyxac@163.com bzhuxf@czu.cn crealchengong@sina.com
Key words: discontinuous; film thickness; threshold; multi-resolution wavelet
Abstract: For building discontinuous dynamic scanning of film thickness of lithium battery systems, dynamic scanning of laser sensors is realized based on threshold judgment and multi-resolution wavelet algorithm for dynamic noise reduction.
Design for the characteristics of X ray thickness gauge data processor circuit[J].Journal of Hunan University of Science and Engineering,2010.08:22-23
Materials Science&Technolog,2008,06:817-820
Design for the characteristics of X ray thickness gauge data processor circuit[J].Journal of Hunan University of Science and Engineering,2010.08:22-23
Materials Science&Technolog,2008,06:817-820