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Online since: June 2014
Authors: Rui Xue, Hou Qian Xu
Nanjing, 210094, China 2College of Energy and Power Engineering, Nanjing Institute of Technology.
Pyrotechnic compositions are widely used in military and civil fireworks.
Materials Science and Engineering 465: 199-203
Journal of Engineering Thermophysics 28: 233-238
Chemical Engineering Science 64: 4955-4960
Online since: September 2013
Authors: You Liang Chen, Peng Wang, Rafig Azzam, Jing Ni
Experimental Study on Mechanical Properties of Heated Granite under Different Cooling Ways Jing Ni1,a, Youliang Chen1,b, Peng Wang1,c, Rafig Azzam2,d 1 Department of Civil Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, 200093 Shanghai, China 2Department of Engineering Geology and Hydrogeology, RWTH Aachen University, Lochnerstr. 4-20, 52064 Aachen, Germany awendy_1943@163.com, bchenyouliang2001@yahoo.com.cn, cwangpeng@163.com, dazzam@lih.rwth-aachen.de Keywords: Heating temperature, Granite, Water cooling, Air cooling, Mechanical characteristics.
Introduction The problems of temperature-dependent rock mechanics have arisen in many practical engineering projects, like the nuclear waste storage projects, rock slope projects in railway and express way, the exploitation and application of geothermal resources.
The studies on mechanical characteristics of heated rocks are of great significance for improving the safety of some rock engineering projects.
Some scientists and engineers have studied the mechanical characteristics of heated rocks.
Online since: November 2011
Authors: Yan Wang, Ying Chen, Jing Wang, Guo Zhong Huang
Risk Assessment Model of Automobile Defect based on Weibull Guozhong Huang1, a, Yan Wang2, b, Ying Chen1, c, Jing Wang1, c 1School of Civil & Environment Engineering, 1 University of Science and Technology Beijing, Beijing, China 2 Defective Product Administrative Center, 2General Administration of Quality Supervision, Beijing, China a huangguozhonghgz_001@sina.com, b autowy@163.com, c windycy@126.com Keywords: Automobile; defect; risk assessment; Weibull distribution Abstract.
Weibull distribution is one of random variables distributions, which belongs to the minimum III distribution, and is widely used in the reliability engineering, especially suitable for the distributed form which expires in the mechanical and electrical kind of product's attrition accumulation, may infer its distributed parameter using the probability value, and widely used in each kind of length-of-life test data processing [4,5].
[7] SmartJ.mitchell, “The effect of the threshold stress on the determination of the Weibull parameters in probabilistic failure analysis,” Engineer Fracture Mechnics. vol.70, pp. 2559-2567, 2003
[8] Xiaodong Yan, Xiang Ma, Rongyue Zheng,“Comparison of the Parameters Estimation Methods for 3-Parameter Weibull Distribution,” Journal of Ningbo University(Natural Science & Engineering Edition.
[12] Yongan Huang, Lu Ma, MATLAB7.0/Simulink6.0 modeling and simulation development and advanced engineering applications.CHN: Beijing: Tsinghua University Press, 2005.
Online since: June 2012
Authors: Man Feng Gong, Zhong Li, Jue Dong
Mechanics Analysis of Reinforcing Rib Structure in Aluminum Heating-plate Automatic Casting System GONG Manfeng1, a, LI Zhong1, b, DONG Jue1, C 1 Institute of Mechatronic Engineering, Zhanjiang Normal University, Zhanjiang 524048 agongmanfeng@163.com, blizhong6@tom.com, cdongjue9006@sina.com Key words: Heating-plate, Reinforcing rib, Automatic casting, Static mechanics, Dynamical mechanics; Finite element Abstract: Reinforcing rib structure in the aluminum heating-plate automatic casting system was modeled by ANSYS, the static and dynamical problems were studied.
It was a basis of structure dynamical analysis and widely used to evaluate structure dynamic characteristic in engineering practice [3].
References [1] Maocheng Wang: Finite Element Method (Tsinghua University Press, Beijing China 2006) [2] Hao Xu, Xuanhuai Qiu, Chunyuan Cai: Mechanical Design Handbook (Mechanical Industry Press, Beijing China 1995) [3] Weimin Li, Hongyi Yang, Wang Hongxiang: Ansys Engineering Structure Practical Case Analysis (Chemical Industry Press, Beijing China 2007) [4] Yanyan Cao, Dengfeng Zhao: Mechanical Engineering and Automation Vol. 1(2007), p. 73 [5] Yuan Anfu, Jun Chen: Manufacturing Technology and Machine Vol. 8(2007), p. 79 [6] Hongbin Gui, Deyou Zhao, Jin Xianding: Journal of Shanghai Jiao Tong University 2002, Vol. 36(11), p. 1544 [7] Jingfan Shao, Wenbin Li: Mechanical Engineering & Automation 2011, Vol. 65(2), p. 67 [8] Haitao Liao, Jianjun Wang, Li Qihan: Journal of Vibration and Shock 2011, Vol. 30(3), p. 22 [9] Yonghui Huang, Xu Han, Huang Fen: Journal of Vibration and Shock 2009, Vol. 28(7), p. 61 [10] Shuming Li, Yanxiao Huang, Guanbing Cheng: Journal of Civil Aviation
Online since: August 2019
Authors: Varvara Vinnichenko, Ye. A. Udalova, Azat I. Gabitov, Viktoriya A. Ryazanova, Aleksander S. Salov
Udalova2,d, A.S.Salov2e 1Kharkiv National University of Civil Engineering and Architecture, Department of Mechanization of Construction Processes, Sumska st. 40, 61002, Ukraine 2Ufa State Petroleum Technological University, Mendeleeva St. 195, Ufa, 450000, Russia avvinnichenko@ukr.net, bvryazanov@hotmail.com, cgabitov.azat@mail.ru, dvakil2004@mail.ru, esalov@list.ru Keywords: Cement composition, hydration of oxides, hydrocarbonate.
The following recommendations are to be followed when engineering exterior walls of vibropressed concrete blocks to prevent efflorescence in the masonry surface: - Three-layer exterior walls made of small piece materials are to be designed with air space for drying the insulation applied, with the thickness thereof being taken as 4-6cm; - Upper edges of all raised parts (cornices, blocking courses, and band courses) should have slope outside for water outlet and drip edges; - Upper surface of cornices, blocking courses, and band courses should be covered by metal; - Overflow structures such as outlet pipes, rainwater heads, gutters and canopies are to be installed; - Exterior surface of brick masonry should be protected by water-repellent compositions (basement wall is to be hydrophobizated) The following recommendations are to be followed when making exterior walls of vibropressed concrete blocks to prevent efflorescence: - Application of materials (cement, aggregates, chemical
Reasons for appearance and control methods of efflorescence formation on surface of engineering structures // Proceedings of the 1st conference on concrete and reinforced concrete problems “Concrete at the turn of the third Millenium”.
Stages of efflorescence occurrence in exterior wall surface of buildings // Construction bulletin of the Russian Academy, Proceedings of “construction” section of the Russian Academy of Engineering (2009) 44-45
Series: Engineering sciences V 9 No 6.2 (2013) 22-24
Online since: February 2020
Authors: Iosif Tempea, Carmen Elisabeta Radu, Edward Rășchitor
The optimum version was chosen following a discussion with the specialized architects, building engineers and as a result of an impact study [2].
Mandatorily, in order to execute these parking lots, specialists in the field must be consulted – construction engineers and architects, as well as the staff of the City Hall of Bucharest so, as to be able to evaluate the project’s feasibility – the most important aspect is to obtain the necessary funds because the need for these parking lots can no longer be considered.
The solar panels systems are sometimes provided with guiding mechanisms, the panel being permanently directed so as to maximum exploit the incident solar energy; · The parking places are safe, using a system with an automation package, comprising:   - vehicles alphanumeric boarding; - boarding soft with card; Threats · The reduced research and innovation capacity in the industry and construction; · The lack of involvement of the business community in the phrasing and monitoring of the development strategy; · The external migration of the employees specialized in constructions and the use of unqualified staff; · The downward trend in the number of engineers and the aging of the active staff in constructions; · The insolvency or bankruptcy of certain construction companies; · Fluctuations in the insurance of the financing of the commenced work; · The impossibility of maintaining the term estimated for the work’s commencement; · The modification of the legislation which
may lead to the work’s modification; Technical and Economic Impact The target groups of the technical and economic-financial environment The target groups of the services necessary in the field of research and execution of a parking lot in the area of Dâmbovița River consist in specialists performing the activity in the following units: · Politehnica University of Bucharest; · University of Civil Engineering of Bucharest; · Architecture University; · The City Hall of Bucharest; · Research-Development National Institutes, in the construction field.
Seismic structural isolation is based on the insulation technologies of the construction base ("decoupling " of the superstructure from the infrastructure), considered as passive means of anti-seismic protection and anti-vibrators (Fig. 3 and Fig. 4) Conclusions The optimum version was chosen following a discussion with the specialized architects, building engineers and as a result of an impact study [1], Fig. 5, table 2.
Online since: September 2013
Authors: Khanh Vi Dang, Mohd Fadhil Nuruddin, Suzana Yusup, Yoshimitsu Uemura
Catalytic Pyrolysis of Rice husk via Semi-batch Reactor using L9 Taguchi Orthogonal Array Dang Khanh Vi 1, a, Suzana Yusup1,b Yoshimitsu Uemura1,c and Muhd Fadhil Nuruddin 2,d 1 Biomass Processing Lab, Centre for Biofuel and Biochemical,Green Technology, Mission Oriented Research, Chemical Engineering Department, UniversitiTeknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia. 2 Civil Engineering Department, UniversitiTeknologi PETRONAS,Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia adangkhanhvi@gmail.com, bdrsuzana_yusuf@petronas.com.my, cyoshimitsu_uemura@petronas.com.my, d fadhilnuruddin@petronas.com.my Keywords: Catalytic Pyrolysis, Rice husk, Taguchi method, H-ZSM-5, H-Y, H-β.
[6] Fairous Salleh et al, "Bio-Fuel Source from Combination Feed of Sewage Sludge and Rice Waste“, 2011 International Conference on Environment Science and Engineering IPCBEE vol.8 (2011)
Society of Manufacturing Engineers.1990
[17] Ross, P.J., "Taguchi Techniques for Quality Engineering“. 2nd ed. 1996, United States: McGraw-Hill
Online since: September 2011
Authors: Shen Jie Zhou, Jun Feng Zhao, Bing Lei Wang
Size Dependent Pull-in Phenomena in Electro-statically Actuated Micro-beam Based on the Modified Couple Stress Theory Junfeng Zhao1, 2,a, Shenjie Zhou2,b and Binglei Wang1,c 1School of civil engineering, Shandong University, Jinan 250061, PR China 2School of mechanical engineering, Shandong University, Jinan 250061, PR China azhaojunfeng@sdu.edu.cn, bzhousj@sdu.edu.cn, cwang4913@sina.com Keywords: size dependent, pull-in, micro-beam, modified couple stress theory, MEMS, analog equation method.
Application of the Analog Equation Method AEM is a powerful technology for finding solutions of nonlinear engineering problems (material nonlinearity, geometrical nonlinearity), the essence of the AEM is the replacement of the coupled nonlinear partial differential equations with variable coefficients governing the response of the body by an equivalent set of uncoupled equations under fictitious sources [21].
[17] Shengli Kong, Shenjie Zhou, Zhifeng Nie and Kai Wang: International Journal of Engineering Science Vol. 46 (2008), p.427-437
Online since: February 2011
Authors: Jian Zhang, Wen Liang Lu
,Ltd, Chongqing, 400024, China 2WISDRI Engineering & Research Incorporation Limited, Wuhan, Hubei, 430223, China acq2010jianzhang@163.com, b33003@wisdri.com Key words: Asphalt Overlay, Old Cement Pavement, Interlayer Materials, Bond, Pull-out Test.
Department of Civil Engineering of the Nottingham University had researched on grid application in pavement, results show that geotextile mesh will reduce 42% of the bond strength between old pavement and overlay, it corresponds to the area of fiberglass grid latitude and longitude account for 45% of specimen tensile cross-sectional area. and of about grid specimen tensile cross-sectional area corresponding to 45% [3].
Central SouthHighway Engineering, Vol. 28(2003), No.2, p. 19-21
Central South Highway Engineering, Vol. 31(2006), No.5, p. 5-7,47
Online since: September 2011
Authors: Hai Tao Wang, You Ming Chen, Cary W.H. Chan, Jian Ying Qin
Chan2, Jianying Qin 2 1 College of civil engineering, Hunan University, Changsha, Hunan 410082, China 2Swire Properties Management Ltd, Island East, Hong Kong, China 3Key laboratory of building safety and energy efficiency, MOE, China Ymchen@ hnu.edu. cn Keywords: air handling unit; self-tuning model; residual; threshold; fault detection Abstract.
George, Applied statistics and probability for engineers, New York: John Wiley & Sons, 1994
Computers and Industrial Engineering, 45,597-613
Andersen, A Toolkit for Secondary HVAC System Energy Calculation, American Society of Heating, Refrigerating and Air-Conditioning Engineers ASHRAE, 1993.
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