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Online since: December 2012
Authors: R.A. Siregar, J.C. Leong, M.J. Hasnul, N. Liyana Tajul Lile
Hasebe: Detection and Diagnosis of Blockage in Parallelized Microreactors (Chemical Engineering Journal 167 (2011) 483–489)
Muhamad Azmi: Blockage Detection in Circular Pipe Using Vibration Analysis (International Journal on Advanced Science Engineering Information Technology Vol. 2 (2012) No. 3)
Roslan: Vibration Analysis of Blocked Circular Pipe Flow (Applied Mechanics and Materials Vol. 165 (2012) pp 197-201)
Muhamad Azmi: Blockage Detection in Circular Pipe Using Vibration Analysis (International Journal on Advanced Science Engineering Information Technology Vol. 2 (2012) No. 3)
Roslan: Vibration Analysis of Blocked Circular Pipe Flow (Applied Mechanics and Materials Vol. 165 (2012) pp 197-201)
Online since: February 2011
Authors: Yu Qing Yan, Ming Gao
Fire Retardant Cellulose Characterized by Thermal Degradation
Behavior
Ming Gao1, a, Yuqing Yan1, b,
1Department of Environmental Engineering, North China University of Science and Technology, Box 206,Yanjiao Beijing 101601, China
agaoming@ncist.edu.cn, byanyuqing@ncist.edu.cn
Key words: Cotton Cellulose, DTA, Fire Retardant, TG
Abstract.
After the oxidative decomposition stage, mass losses of the residual materials of cellulose are found to be slow in the temperature range 350-485°C.
L.Bhatnagar: British Polymer Journal, Vol.22 (1990) p.107 [4] P.
Heuberger: Journal of Analytical and Applied Pyrolysis, Vol. 87(2010), p.93 [5] M.
After the oxidative decomposition stage, mass losses of the residual materials of cellulose are found to be slow in the temperature range 350-485°C.
L.Bhatnagar: British Polymer Journal, Vol.22 (1990) p.107 [4] P.
Heuberger: Journal of Analytical and Applied Pyrolysis, Vol. 87(2010), p.93 [5] M.
Online since: March 2013
Authors: Bing Chen, Zhong Jun Yin, Ming Le Deng
Calculation analysis of natural frequency of Pipe conveying fluid resting on Pasternak foundation
Bing Chen 1, a, Ming-le Deng 2,b and Zhong-jun Yin 3,c
1,2,3Mechanical Engineering School of University of Science and Technology Beijing, Beijing, China
a bingchen9803@ustb.edu.cn, b dengml1987@yahoo.cn, c yinzhongjun@ustb.edu.cn
Keywords: Pipe conveying fluid; natural frequency; complex mode method; Galerkin method; Pasternak foundation.
The complex mode method and Galerkin mode truncation method Suppose T=Γ-Π(1-2vδ) and T denote pretension force; ignore influence of gravity, and damping induced material dissipation and flow; the situation of steady flow is studied in this paper, namely ; equation (2) can be simplified to a homogeneous form, (3) (3) is a linear partial differential equation which can be solved by the complex mode method, a complex transcendental equation that contains information of natural frequency can be solved by numercial method, and the specified transformati- on process can be found in refs [4]
Note that the existence of influence of gravity and material dissipation are also ignored in the solving process of Galerkin method.
[4] Xiaodong Yang, Jiduo Jin: Journal of Vibration and Shock [J], Vol. 27(3) (2008), p.81-86.
[5] Huanhuan Qi, Jian Xu: Journal of Vibration and Shock, Vol. 30(1) (2011), p.148-151.
The complex mode method and Galerkin mode truncation method Suppose T=Γ-Π(1-2vδ) and T denote pretension force; ignore influence of gravity, and damping induced material dissipation and flow; the situation of steady flow is studied in this paper, namely ; equation (2) can be simplified to a homogeneous form, (3) (3) is a linear partial differential equation which can be solved by the complex mode method, a complex transcendental equation that contains information of natural frequency can be solved by numercial method, and the specified transformati- on process can be found in refs [4]
Note that the existence of influence of gravity and material dissipation are also ignored in the solving process of Galerkin method.
[4] Xiaodong Yang, Jiduo Jin: Journal of Vibration and Shock [J], Vol. 27(3) (2008), p.81-86.
[5] Huanhuan Qi, Jian Xu: Journal of Vibration and Shock, Vol. 30(1) (2011), p.148-151.
Online since: August 2013
Authors: Wang Lin, Zuo Yun Li, Mo Liu, Jin Hua Ning
Green construction system, including:four specific contents: the green site, green resources, green production and green products;control in two levels: the production of material transformation process and control the whole process of product life cycle;Two objectives: resources ,reducing consumption of energy and ecological improvement in environment.The technical system shown in Table 1 [1].
(4) TABLE 1 The energy-saving index system of construction job-site based on green construction Energy-saving condition of Green Construction Green site selection Save land R1 Affect environment R2 Affect traffic and city R3 Green resource Save material R4 Save water R5 Save resource R6 Not environment damage R7 Waste reclamation R8 Green production Green production equipment R9 Green production technique R10 TABLE 2 The energy-saving levels relative index table Level Excellent Good Medium Poor Relative index 0.85-1 0.85—0.75 0.75—0.65 0—0.65 Mult- target evaluation vector synthesis measurement.
Hua zhong University of Science and Technology, 2007
[2] Li wanqing etc.The unascertained mathematics in the application of construction safety evaluation [J] vol 23 journal of hebei architecture technology institute, fusion eng.
[3] Yang zhimin.unascertained information mathematical treatment methods [J].journal of Chinese management, first (8) : 192-196
(4) TABLE 1 The energy-saving index system of construction job-site based on green construction Energy-saving condition of Green Construction Green site selection Save land R1 Affect environment R2 Affect traffic and city R3 Green resource Save material R4 Save water R5 Save resource R6 Not environment damage R7 Waste reclamation R8 Green production Green production equipment R9 Green production technique R10 TABLE 2 The energy-saving levels relative index table Level Excellent Good Medium Poor Relative index 0.85-1 0.85—0.75 0.75—0.65 0—0.65 Mult- target evaluation vector synthesis measurement.
Hua zhong University of Science and Technology, 2007
[2] Li wanqing etc.The unascertained mathematics in the application of construction safety evaluation [J] vol 23 journal of hebei architecture technology institute, fusion eng.
[3] Yang zhimin.unascertained information mathematical treatment methods [J].journal of Chinese management, first (8) : 192-196
Online since: February 2013
Authors: Yan Li, Lin Jin, Xiao Zhang, Miao Liu
(1)
Where P is the average pressure of the contact area,E is the elasticity coefficient of packing material, δ is the thickness of the liner, λmax is the maximum value of liner’s compressive deformation.The printing pressure of the contact area is:
F=23lpb
The coefficient of the tube material for the thermal conductivity is constant λ2, and its thickness is δ2.
Acknowledgement This study is supported by National Science and Technology Support Program (2012BAF13B05), Research Teams Project of Beijing Institute of Graphic Communication,And Institute Level Key Projects Funded by Beijing Institute of Graphic Communication (No. 23190112029).
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.
The coefficient of the tube material for the thermal conductivity is constant λ2, and its thickness is δ2.
Acknowledgement This study is supported by National Science and Technology Support Program (2012BAF13B05), Research Teams Project of Beijing Institute of Graphic Communication,And Institute Level Key Projects Funded by Beijing Institute of Graphic Communication (No. 23190112029).
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.
Online since: December 2014
Authors: Wei Wei Zhu
Zhaohui Wang[1] analyzed the application scope of several commonly used limit equilibrium methods calculating the slope stability factor, the result is that linear sliding method only suitable for slope in the sand or gravel materials.
Liu: submitted to Journal of Chongqing Jiaotong University (2005) [2] Ministry of Water Resources of the People's Republic of China: Standard for engineering classification of soil (China Planning Press, Beijing 2008) [3] Ministry of Communications of the People's Republic of China: Test Methods of Soils for Highway Engineering (China Communications Press, Beijing 2007) [4] X.J.
Huang: submitted to Journal of Gansu Sciences (2012) [6] Ministry of Communications of the People's Republic of China: Specifications for Design of Highway Subgrades (China Communications Press, Beijing 2004)
Liu: submitted to Journal of Chongqing Jiaotong University (2005) [2] Ministry of Water Resources of the People's Republic of China: Standard for engineering classification of soil (China Planning Press, Beijing 2008) [3] Ministry of Communications of the People's Republic of China: Test Methods of Soils for Highway Engineering (China Communications Press, Beijing 2007) [4] X.J.
Huang: submitted to Journal of Gansu Sciences (2012) [6] Ministry of Communications of the People's Republic of China: Specifications for Design of Highway Subgrades (China Communications Press, Beijing 2004)
Online since: November 2005
Authors: Jun Hyub Park, Chang Gil Suk, Tae Gyu Park, Jun Tae Kim, Woo Seong Che
The starting material is a single-side-polished p-type (100) 6inch
silicon wafer.
Acknowledgement This work was supported by the Post-doctoral Fellowship Program of Korea Science & Engineering Foundation (KOSEF).
Material.
Schiffirin: Journal of Micromechanics and Microengineering (1997), pp. 338-342 [3] S.A.
Campbell and K cooper, et.al.: Journal of Micromechanics and Microengineering (1995), pp. 209-218 [4] J.
Acknowledgement This work was supported by the Post-doctoral Fellowship Program of Korea Science & Engineering Foundation (KOSEF).
Material.
Schiffirin: Journal of Micromechanics and Microengineering (1997), pp. 338-342 [3] S.A.
Campbell and K cooper, et.al.: Journal of Micromechanics and Microengineering (1995), pp. 209-218 [4] J.
Online since: April 2012
Authors: Yu Zhang, Zhi Guo An, Wei Wang
The material of billet is AISI-1015 which is the corresponding steel grade of 15Cr in the Deform material library.
Acknowledgment This work is partially supported by the Science and Technology Research Project of Chongqing Municipal Education Commission of China under Grant No.KJ100414.
Journal of Iron and Steel Research, 2008,Vol20, No.6:27-31 [5] ZHU Shuxian, ZHANG Renjie.
Chinese Journal of Scientific Instrument, 2007, Vol.28, No.2 : 375-379.
Acknowledgment This work is partially supported by the Science and Technology Research Project of Chongqing Municipal Education Commission of China under Grant No.KJ100414.
Journal of Iron and Steel Research, 2008,Vol20, No.6:27-31 [5] ZHU Shuxian, ZHANG Renjie.
Chinese Journal of Scientific Instrument, 2007, Vol.28, No.2 : 375-379.
Online since: October 2012
Authors: Xue Peng Liu, Dong Mei Zhao
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this and system of the raw material wood activated carbon.
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this May and system of the raw material wood activated carbon.
References [1] Wang Hong_juan Xi Hong_xia Zhang ,i Activation Energy for Desorption of n-Hexanol on Modified Activated Carbons, Journal of South China University of Technology(Natural Science),2002.7: 1503-1506 [2]Wang Kunping Xu Qianqian,etc , Effect of several different treatment methods on surface chemical properties of actived carbon, Chinese Journal of Environmental Engineering,, 2012.2: 1561-581 [3] XU San-Kui LI Li-Min1, etc., Hydrogenation of Glucose Using Ru/Activated Carbon Catalysts: Effects of Modification Methods on Surface Properties of Activated Carbon, Acta Physico-Chimica Sinica, 2012.1:120-137 [4] Xingya Cai, Applied Study on the Superficial Transformation of Active Carbon in the Hydration of Ethylene Oxide to N-propyl alcohol, Dalian university of chemical technology,2000.6
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this May and system of the raw material wood activated carbon.
References [1] Wang Hong_juan Xi Hong_xia Zhang ,i Activation Energy for Desorption of n-Hexanol on Modified Activated Carbons, Journal of South China University of Technology(Natural Science),2002.7: 1503-1506 [2]Wang Kunping Xu Qianqian,etc , Effect of several different treatment methods on surface chemical properties of actived carbon, Chinese Journal of Environmental Engineering,, 2012.2: 1561-581 [3] XU San-Kui LI Li-Min1, etc., Hydrogenation of Glucose Using Ru/Activated Carbon Catalysts: Effects of Modification Methods on Surface Properties of Activated Carbon, Acta Physico-Chimica Sinica, 2012.1:120-137 [4] Xingya Cai, Applied Study on the Superficial Transformation of Active Carbon in the Hydration of Ethylene Oxide to N-propyl alcohol, Dalian university of chemical technology,2000.6
Online since: September 2014
Authors: Yao Li Zhan, Xin Li
Although some design of ventilation and smoke exhaust system, but has no effect in the fire at all;
(2) Fire alarm and fire fighting equipment in the subway were incomplete;
(3) Subway and adornment material were flammable, once the fire, not easy to control;
(4) Metro management was oversight.
1.2 The characteristics of the subway fire
Because the subway usually buried deep in the ground, far off the ground, generally 20 to 30 meters from ground, further such as north Korea Pyongyang subway, route and station are off the ground and 70 metres deep.
Subway within a closed environment make the material were not easy to burn adequately, fire fuel of large amount of smoke, and the subway into the exhaust by a small amount of tuyere, mechanical ventilation system failure occurs it was difficult to rely on natural ventilation, smoke control and eliminate all were more complex
China safety science journal, 2004, 14 (7):70 -73 [3] Hitoshi Kurioka,Yasushi Oka,Hiroomi Satoh ans Ssami Sugawa.Fire properties in near field of square fire source with longitudinal ventilation in tunnels.Fire Safety Journal,2003,8:319-340 [4] L.H.Hu,R.Huo,Y.Z.Li,et a1.Full-scale burning tests on studing smoke temperature and velocity along a corridor Tunnelling and Underground Space Technology,2005,20(3):223-229
Subway within a closed environment make the material were not easy to burn adequately, fire fuel of large amount of smoke, and the subway into the exhaust by a small amount of tuyere, mechanical ventilation system failure occurs it was difficult to rely on natural ventilation, smoke control and eliminate all were more complex
China safety science journal, 2004, 14 (7):70 -73 [3] Hitoshi Kurioka,Yasushi Oka,Hiroomi Satoh ans Ssami Sugawa.Fire properties in near field of square fire source with longitudinal ventilation in tunnels.Fire Safety Journal,2003,8:319-340 [4] L.H.Hu,R.Huo,Y.Z.Li,et a1.Full-scale burning tests on studing smoke temperature and velocity along a corridor Tunnelling and Underground Space Technology,2005,20(3):223-229