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Lower Heating Value Estimation of Coal Gangue through Proximate Analysis Data Based on GB/T 212-2008
Online since: August 2013
Authors: Ling Xu, Ling Lin, Jin Huang, Chen Yi Li, Bin Lu, Xiu Teng Wang
However, this analysis method is cost intensive, as it requires not only sophisticated equipment but also highly trained analyst. [7, 8] And some engineers, manufacturers or researchers, for whom high accurate heating value of materials are not necessary, want to determine it with an easier and faster approach within an acceptable tolerance.
Acknowledgements This work was financially supported by the National Science and Technology Support Programs of China (2011BAB02B04 and 2011BAB02B05) and 863 Program (2012AA06A117).
Zhou: Engineering Science, Vol. 6 (2004), pp. 20-22.
Li: Journal of Hazardous Materials, Vol. 179 (2010), pp. 515-520 [5] D.X.
Acknowledgements This work was financially supported by the National Science and Technology Support Programs of China (2011BAB02B04 and 2011BAB02B05) and 863 Program (2012AA06A117).
Zhou: Engineering Science, Vol. 6 (2004), pp. 20-22.
Li: Journal of Hazardous Materials, Vol. 179 (2010), pp. 515-520 [5] D.X.
Online since: November 2012
Authors: Bo Mo, Liu Min Wang
For solid rocket motors, when the materials of vane is using tungsten and molybdenum or tungsten copper, the sweep angle can be between 40°and 50 °.
Tungsten and molybdenum and other refractory alloy rudder desirable .In this design the material of rudder select tungsten and molybdenum, before and after the half-wedge angle select 2°.
Although the engineering calculations and simulation software can provide theoretical support for the preliminary design of the thrust vector control system, however, in order to design the vane which can meet the practical application, it must also consider the require-ments of the rudder body strength, stiffness, material ablation and connect the structure.
References [1] C.L.Yu,A.N.Zhang,C.B.Du and B.Zhou: Journal of Henan University of Science and Technology:Natural Science,Vol 29 (2008) No.3,p.35~38(in chinese) [2] M:F.Lin and G.B:Wang:Thrust Vector Control of Solid Roc-ket ( National Defense Industry Press 1981,p. 196~200) [3] Z.H.Liu:Missiles And Space Vehicles. (1995) No.4,p.9~17 (in chinese) [4] Z.H.Liu:Tactical Missile Technology. (1988) No.2,p.1~7 (in chinese)
Tungsten and molybdenum and other refractory alloy rudder desirable .In this design the material of rudder select tungsten and molybdenum, before and after the half-wedge angle select 2°.
Although the engineering calculations and simulation software can provide theoretical support for the preliminary design of the thrust vector control system, however, in order to design the vane which can meet the practical application, it must also consider the require-ments of the rudder body strength, stiffness, material ablation and connect the structure.
References [1] C.L.Yu,A.N.Zhang,C.B.Du and B.Zhou: Journal of Henan University of Science and Technology:Natural Science,Vol 29 (2008) No.3,p.35~38(in chinese) [2] M:F.Lin and G.B:Wang:Thrust Vector Control of Solid Roc-ket ( National Defense Industry Press 1981,p. 196~200) [3] Z.H.Liu:Missiles And Space Vehicles. (1995) No.4,p.9~17 (in chinese) [4] Z.H.Liu:Tactical Missile Technology. (1988) No.2,p.1~7 (in chinese)
Online since: March 2016
Authors: Xing Jun Liu, Lu Jiang Zhou, Xiao Hong Wang, Shu Liang Wang, Yuan Hua Lin, Jia Lian Li
Thermodynamic Calculation of Bi-Au-Lu, Nd Ternary Systems
Shuliang WANG1, a, Lujiang ZHOU1, b, Jialian LI1, c,
Xiaohong WANG1, d, Yuanhua LIN1, e* and Xingjun LIU2, f
1School of Materials Science and Engineering, Southwest Petroleum University,
Chengdu 610000,China.
The CALPHAD (Calculation of Phase Diagram) technique is a powerful tool to effectively provide an important guideline for materials design [6-9], which would reduce cost and time.
Acknowledgements This work was supported by the Scientific Research Foundation of Southwest Petroleum University and National Natural Science Foundation of China (51374180).
Journal of Alloys and Compounds, 502(2010) 43-48.
The CALPHAD (Calculation of Phase Diagram) technique is a powerful tool to effectively provide an important guideline for materials design [6-9], which would reduce cost and time.
Acknowledgements This work was supported by the Scientific Research Foundation of Southwest Petroleum University and National Natural Science Foundation of China (51374180).
Journal of Alloys and Compounds, 502(2010) 43-48.
Online since: March 2015
Authors: Hu Wang, Fei Han
Stress analysis of simple-supported box girder deck pavement under the effect of concrete cushion
WANG Hu1,a, HAN Fei1,b
1School of Science Chang' an University, Shaanxi 710064, China
awh89@chd.edu.cn, b674623368@qq.com,
Keywords: deck pavement, concrete cushion layer, transverse slope, interface shear stress.
Basic hypothesis (1)Pavement and girder materials are in stage of elastic
The relevant material parameters are shown in Table 1and model can be seen in Figure 1.
Material Parameters used in Model Elastic modulus of Bridge girder/MPa Elastic modulus of concrete cushion/MPa Poisson's ration of concrete cushion Elastic modulus of waterproof layer/MPa Poisson's ration of waterproof Waterproof thickness Elastic modulus of asphalt concrete /MPa Poisson's ration of asphalt concrete 30,000 33,000 0.16667 150 0.3 2mm 1800 0.25 Figure.1 Meshes of deck pavement finite element model Find the most unfavorable loading location (1)Loading position.
Journal of Chang’ an University (Natural Science Edition), 2007, 27, (4) [2] FAN Li-chu,"Bridge engineering" China Communications .Press.
Basic hypothesis (1)Pavement and girder materials are in stage of elastic
The relevant material parameters are shown in Table 1and model can be seen in Figure 1.
Material Parameters used in Model Elastic modulus of Bridge girder/MPa Elastic modulus of concrete cushion/MPa Poisson's ration of concrete cushion Elastic modulus of waterproof layer/MPa Poisson's ration of waterproof Waterproof thickness Elastic modulus of asphalt concrete /MPa Poisson's ration of asphalt concrete 30,000 33,000 0.16667 150 0.3 2mm 1800 0.25 Figure.1 Meshes of deck pavement finite element model Find the most unfavorable loading location (1)Loading position.
Journal of Chang’ an University (Natural Science Edition), 2007, 27, (4) [2] FAN Li-chu,"Bridge engineering" China Communications .Press.
Online since: February 2012
Authors: Ling Yin Li, Yi Fan Wang, Xiao Gang San
Stray Light Analysis of Solar Photoelectric detection System on Space Target
LI Ling-yin 1,2, a, WANG Yi-fan2,b and San Xiao-gang2,c
1 Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences Changchun,China
2 Graduate University of Chinese Academy of Science,Beijing; China
alilingyin_02@163.com, bwangyifan1958@163.com, csanxiaogang1984@163.com
Keywords: photoelectric-detection; stray light; main baffle; baffle vane;
Abstract.
Designing of hood system, material surface coating, BRDF, test of PST and image processing technical make benefits for the photoelectric detection system to decrease stray light influence.
Above all, the power of incident stray light source, secondly the scattering characteristics of material, finally geometric components factor GCF which depends on structure of opto-mechanical system (including central obscuration).
Anti-reflection coating on optics or painting with absorbing materials are solutions for reduction of stray light.
Du, “Stray light analysis of Fabry-Perot interference image spectrometer,” Journal of Applied Optics, vol.30, 0246-0251, Febuary, 2009
Designing of hood system, material surface coating, BRDF, test of PST and image processing technical make benefits for the photoelectric detection system to decrease stray light influence.
Above all, the power of incident stray light source, secondly the scattering characteristics of material, finally geometric components factor GCF which depends on structure of opto-mechanical system (including central obscuration).
Anti-reflection coating on optics or painting with absorbing materials are solutions for reduction of stray light.
Du, “Stray light analysis of Fabry-Perot interference image spectrometer,” Journal of Applied Optics, vol.30, 0246-0251, Febuary, 2009
Online since: January 2014
Authors: Xiao Fang Wang, Jian Xing Liu, Mao Fang Huang, Ming Yue Wang, Yu Bing Zha, Shao Dong Zeng, Ling Lin, Chun Liang Yang
Determination of imidacloprid residues in
Chinese Cabbage by UPLC—MS/MS
Yubing Zha1,2,a, Maofang Huang1,b*,Chunliang Yang 1,2,c, Mingyue Wang 1, 2,d,
Xiaofang Wang 1, 2,e , Ling Lin 1, 2,f ,Jianxing Liu3,g Shaodong Zeng 1, 2,h
1Agriculture Products Processing Research Institute,Chinese Academy of tropical
Agriculture Science, Zhanjiang 524001, China
2Laboratory of quality & safety risk assessment on agro-products processing(zhanjiang),
ministry of agriculture
3Institute for the Control of Agrochemicals,chongqing
azhayubing2008@126.com, bhuangmaofang666@163.com, c76462276@qq.com, dhkwmy0815@vip.163.com, e32879895@qq.com, flinling408@163.com, gsuperljx2002@163.com,
h283883503@qq.com
*Corresponding author.
The sensitivity of the determination method for chlorbenzuron by LC is too low, and unable to meet the requirements of Positive List System of Jpan.This article established a UPLC-MS/MS method with simple operation, high sensitivity, and good reproducibility which can be determined the residues of imidacloprid in Chinese cabbage through optimize conditions of pretreatment,chromatographic separation technology and mass spectrograph. and improving the detection limit greatly. 1Materials and methods Instruments, reagents and materials Waters UPLC-TQD (Waters Corporation); High-speed Homogenizer; Nitrogen blow instrument (United States Organomation); Centrifuge (Japan-Hitachi); Vortex mixer (Germany IKA); Shaker(Germany IKA);Solid-phase extraction device (HP6019); Electronic balance (AUY220, Shimadzu Corporation).Rotary evaporator(Germany IKA).
Inspection and quarantine science,2006,16(3):49
Journal of Instrumental Analysis, 2002, 21(1):70-72
[7] PLACKE F J, WEBERF.Method of determining imidacloprid residues in plant materials[J].
The sensitivity of the determination method for chlorbenzuron by LC is too low, and unable to meet the requirements of Positive List System of Jpan.This article established a UPLC-MS/MS method with simple operation, high sensitivity, and good reproducibility which can be determined the residues of imidacloprid in Chinese cabbage through optimize conditions of pretreatment,chromatographic separation technology and mass spectrograph. and improving the detection limit greatly. 1Materials and methods Instruments, reagents and materials Waters UPLC-TQD (Waters Corporation); High-speed Homogenizer; Nitrogen blow instrument (United States Organomation); Centrifuge (Japan-Hitachi); Vortex mixer (Germany IKA); Shaker(Germany IKA);Solid-phase extraction device (HP6019); Electronic balance (AUY220, Shimadzu Corporation).Rotary evaporator(Germany IKA).
Inspection and quarantine science,2006,16(3):49
Journal of Instrumental Analysis, 2002, 21(1):70-72
[7] PLACKE F J, WEBERF.Method of determining imidacloprid residues in plant materials[J].
Online since: October 2011
Authors: Xuan Min Li, Li Ming Hu, Shi Bao Dong, Xiao Dong Ouyang
Photovoltaic panel components are a generating equipment which can produce direct current when exposed under the sun light, it’s mainly composed of thin solid photovoltaic cells which are made of semiconductor material such as silicon.
The former refers to that organic substance will produce a combustible gaseous mixture mainly composed of methane in anaerobic environment by microbial fermentation, the mixture is called marsh gas; the latter refers to that ethanol can be made from raw materials such as saccharoid, starch and cellulose by fermentation.
On the technical aspect, we should strengthen fundamental research, strengthen connection between the production, study and research departments, push forward the innovation fundamental research and the innovation on this basis, and this holds great significance to all domain of science.
References [1] Minxuan Cui: The Energy Development Report of China(2010), (The Social Science Document Press, Beijing 2010), 29-31
Energy Policy, Southwest Petroleum University Journal (2009)
The former refers to that organic substance will produce a combustible gaseous mixture mainly composed of methane in anaerobic environment by microbial fermentation, the mixture is called marsh gas; the latter refers to that ethanol can be made from raw materials such as saccharoid, starch and cellulose by fermentation.
On the technical aspect, we should strengthen fundamental research, strengthen connection between the production, study and research departments, push forward the innovation fundamental research and the innovation on this basis, and this holds great significance to all domain of science.
References [1] Minxuan Cui: The Energy Development Report of China(2010), (The Social Science Document Press, Beijing 2010), 29-31
Energy Policy, Southwest Petroleum University Journal (2009)
Online since: September 2014
Authors: Cheng Bin Du, Guo Jun Yu, Fei Guo
Test Materials.
BG2007048); Science and Technology Support Project of Jiangsu Province (Grant No.BE2012180); Innovation of science and technology and demonstration project social programs of Nantong City (Grant No.HS2012043).
Qu: Journal of Functional Materials.
BG2007048); Science and Technology Support Project of Jiangsu Province (Grant No.BE2012180); Innovation of science and technology and demonstration project social programs of Nantong City (Grant No.HS2012043).
Qu: Journal of Functional Materials.
Study on Correlation between the Starch Content of Potato Tuber and its Viscoelastic Characteristics
Online since: November 2012
Authors: Chun Guang Wang, Wen Bin Guo, Jing Jing Gao
Materials and Methods
Test Material and Equipment.
Acknowledgement The authors are very grateful for research funds from the natural science foundation of Inner Mongolia ( No. 2009MS0308 ), and to the Potato Research Center of Inner Mongolia Agricultural University.
Zhou: Agriculture material science (China Agriculture Press, China 1994)
Jiang: Journal of Yunnan Agricultural University, vol. 5 (1990) No.3, p.171.
Acknowledgement The authors are very grateful for research funds from the natural science foundation of Inner Mongolia ( No. 2009MS0308 ), and to the Potato Research Center of Inner Mongolia Agricultural University.
Zhou: Agriculture material science (China Agriculture Press, China 1994)
Jiang: Journal of Yunnan Agricultural University, vol. 5 (1990) No.3, p.171.
Online since: April 2014
Authors: Yun Bo Xu, Guo Dong Wang, Peng Chen, Ji Jun Yan, Chun Yu Shen
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (grant no.51174059 and U1260204), the Fundamental Research Funds for the Central Universities (grant no.N110407003, N120607001) and the National Key Project of Scientific and Technical Supporting Programs (grant no.2011CB606306).
Claessens, Phase transformation and mechanical properties of Si-free CMnAl transformation-induced plasticity-aided steel, Metallurgical and Materials Transactions A, 33(2002) 2573-2580
Jacques, Van Der Zwaag, Quantitative dilatometric analysis of intercritical annealing in a low-silicon TRIP steel, Journal of Materials Science. 37(2002) 1586-1591.
Claessens, Phase transformation and mechanical properties of Si-free CMnAl transformation-induced plasticity-aided steel, Metallurgical and Materials Transactions A, 33(2002) 2573-2580
Jacques, Van Der Zwaag, Quantitative dilatometric analysis of intercritical annealing in a low-silicon TRIP steel, Journal of Materials Science. 37(2002) 1586-1591.