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Online since: June 2008
Authors: Ming Fei Feng, Bing Yang, Yong Xiang Zhao
Feng c Institute of Engineering Reliability and safety, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China a yxzhao@swjtu.cn, byb@swjtu.cn, cfmf456@163.com Keywords: Fatigue; Super-long life; S-N curve; Probabilistic analysis; Carbon steel.
Under variable loads and production environments few of materials display a "fatigue limit" or "endurance limit" and, instead of, they exhibit a continuously decreasing response, even in the super-long life regime [5,6].
Material and Experiments Material.
Chemical composition of this material is given in Table 1.
Bathias and J, Ni, in: Determination of fatigue limit between 105 and 109 cycles using an ultrasonic fatigue device, American Society for Testing and Materials, p. 141, Phenodophia (1993) [13] C.
Online since: September 2014
Authors: Vladimir Alekseevich Sokolov
Magazine of Civil Engineering, № 6: 48 – 57
Fuzzy sets and structural engineering.
Journal of Structural Engineering, ASCE, 109(5): 1211 – 1225
Magazine of Civil Engineering, № 3: 27 – 31
Magazine of Civil Engineering, № 7: 45 – 51.
Online since: February 2011
Authors: Xu Xu, Hong Yu Chu, Qin Liu, Zhi Jiang Xie, Li Dan Zhou
Develop course of “SG-II” device To construct the “SG-II” based on “SG-I” is an important project supported by Chinese Academy of Science, Chinese Engineering Physics Research Institute, and the National Hi-Tech 863 Program.
At the end of December 2001, “SG-II” passed the identification and acceptance of Chinese Academy of Sciences and Chinese Academy of Engineering Physics [1, 12, 14].
The construction project of "SG -III" is located at China Academy of Engineering Physics in Mianyang.
There are some technical targets of several huge laser devices of China shown in Table 2 Acknowledgements The work was supported by National Science Foundation of China and China Academy of Engineering Physics (Project: 10976034).
[13] Ganchang Wang: Chinese journal of nuclear science and engineering.
Online since: September 2007
Authors: Yue Xu, Chun Sheng Wang, Ai Rong Chen, Wei Zhen Chen
Fawkes: Engineering Fracture Fechanics: Numerical Methods and Applications (Pineridge Press Ltd, Swansea UK 1982)
Mahadevan: ASCE Journal of Structural Engineering Vol.127 (2001), p. 957
Breen: ASCE Journal of Structural Engineering Vol.120 (1994), p. 1608
Albrecht: ASCE Journal of Structural Engineering Vol.113 (1987), p. 483
Frangopol: ASCE Journal of Structural Engineering Vol.125 (1999), p. 1407
Online since: October 2011
Authors: Ben Qing Ruan, Yi Cheng Fu, Feng Ran Xu
At that moment, the engineering means to treat river is the main method, abandoning the ecological factors, which makes a serious disturbance to ecological protection.
Zheng et al. applied ecological engineering theories to discuss river ecological restoration mechanism, and pointed out to satisfy the demand of river ecological water requirement is the key in water scarcity area, which laid the foundation for the implementation of river eco-compensation mechanism [5].
Engineering Science,2006,8(1): 5-10
Journal of Hydraulic Engineering, 2007, 38 (10):1228-1235
Journal of Hydraulic Engineering, 2010,41(6):665-670
Online since: May 2011
Authors: Juan Fang, Sheng Jun Shao, Fang Tao She
Mechanical Behavior of Segmented Lining Structure of Tunnel under Acting Ground Fractures in Xi’an Zone Shengjun Shaoa, Fangtao She b, Juan Fangc Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an,710048,China asjshao@xaut.edu.cn, b53745600@qq.com, csusuffjj@126.com Key words: Ground fractures, Tunnel, Segmented lining structure, Finite difference method.
[2] Lee C F, Zhang J M, Zhang Y X: Engineering Geology Vol.1,(1996),p. 45–55
[3] Li Y L, Yang J C, Hu X M: Engineering Geology Vol.4,(2000),p. 267–275
[5] Qiangbing Huang, Jianbing Peng, Wen Fan, et al: Journal of Engineering Geology Vol.4,(2007),p. 469–474,in Chinese
Specification for site investigation and engineering design on Xi’an ground fractures (DBJ61-6-2006)(Shaanxi Provincial Construction Press, Xi′an 2006),in Chinese.
Online since: October 2011
Authors: Min Zhu, Fan Long Kong, Yue Li, Nan Wang, Min Xi, Li Xia Zhao
Waste heat recovery and utilization in cotton manufacturing enterprise: energy saving and emission reduction aspects of a case study Min Zhu, Fanlong Kong, Yue Li*, Nan Wang, Min Xi and Lixia Zhao College of Chemical and Environmental Engineering, Qingdao University, Qingdao, 266071, China *Corresponding author:qdenv@126.com Keywords: energy saving and emission reduction, waste heat, CO2 emission.
In order to collect waste heat, gas in the transportation process minimize the energy loss, there is a new design in a wind tunnel wall and the wall is covered by wall insulation material - high-quality polystyrene foam.
The eastern part of the whole workshop, "channel" part of the drilling of a 0.7m × 1.5m export, and then "Distribution Center" air-conditioned room with 2 # open up the wall between the exports of the same size, both for export and insulation Materials and around the ducts connected to realize the 2 air-conditioned rooms and 4 # , room air-conditioning and connectivity, and vents were opened in two new additional office of a sealed door, turn off non-sealed doors in cold seasons.
Textile industry is the high consumption of energy, national energy conservation policy requires the key industries, the effective implementation of the textile industry, energy conservation demonstration project on the sustainable development of society as a whole have a positive effect. 1) Reduce the total heat exhaust emissions to the atmosphere According to the annual average temperature of Liao Cheng City, in November to April, close the air vents at the spinning plant, the plant maintained at 31 ℃.
According to expert statistics: for every 1 degree savings (kWh) electricity, the corresponding savings of 0.4 kg of standard coal, while reducing pollution emissions 0.272 kg toner dust, 0.997 kilograms of carbon dioxide (CO2), 0.03 kg sulfur dioxide (SO2), 0.015 kg N oxidation material (NOX).
Online since: January 2014
Authors: Chan Zhang, Lei Zhao, Cheng Tao Wang, Jia Chan Zhang
Lipase-catalyzed synthesis of sucrose fatty acid ester and the mechanism of ultrasonic promoting esterification reaction in non-aqueous media Jia-Chan Zhang1,2,a, Chan Zhang2,b, Lei Zhao1,c, Cheng-Tao Wang1,2,d 1 Beijing Engineering and Technology Research Center of Food Additives, China 2 Beijing Laboratory of Food Quality and Safety, Beijing Technology & Business University (BTBU),China a xiaochan8787@163.com, b zhangchan@th.btbu.edu.cn, c zhaolei@th.btbu.edu.cn, d wct5566@163.com (: Corresponding author) Keywords: Sucrose fatty acid ester (SFAE), Novozym435, Lipase CalB, Ultrasound irradiation, Circular dichroism(CD), Scanning Electron Microscope (SEM).
Materials and methods 2.1 Materials CalB and Novozym 435, manufactured by Novozymes, Inc.
Acknowledgements We acknowledge financial assistance from the National Natural Science Foundation of China (No.31071593, 31301411), the Beijing Natural Science Fund (No.5122008) and the Key Project of Chinese Ministry of Education (No.211101).
Online since: April 2014
Authors: Jing Zhu
Determination of the Crystallographic and Electronic Structure of Cesium Holmium Polyphosphate CsHo(PO3)4 with One-dimensional Tunnel Jing Zhu Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China email: jzhu@ynu.edu.cn Keywords: polyphosphate, CsHo(PO3)4, crystal structure, electronic structure Abstract.
Acknowledgements This work was supported by the National Natural Science Foundation of Yunnan Province (No. 2012FB122), the Education Science Foundation of Yunnan Province (No. 2013Z050), the Science Foundation of State Key Laboratory of Structural Chemistry (No. 20140012), Training program for young academic and technical leader in Yunnan Province and Training program for young teacher in Yunnan University.
Payne, Materials Studio CASTEP version 2. 2, 2002
Online since: October 2008
Authors: Jian Guo Cai, Jian Feng, Hong Jin Zhu, Ya Fei Liu, Li Feng Huang
Experimental Study and FEM Analysis of Seismic Behavior of Joints for Frame Structures Comprised of Precast Prestressed Concrete Components Jianguo Cai1, a , Jian Feng1, b , Hongjin Zhu2, c, Yafei Liu3, d and Lifeng Huang1, e 1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China 2 Guangdong Southern Planning and Designing Institute of Telecom Consultation Co., Ltd., Shenzhen 518038, China 3 Nanjing Dadi Construction (Group) Co., Ltd., Nanjing 210013, China a caijg_ren@126.com, b fengjian@seu.edu.cn, c05098418@163.com, d caijg_ren@126.com, e 415huang@163.com Keywords: precast concrete structure; seismic performance; joint; service hole; cyclic loading; finite element method.
The material properties of concrete and reinforcing bar are listed in Table 1 and Table 2.
Table 1 Material propertoes of concrete Concrete C40(First batch) C40(Second batch) C40(Third batch) C50 Axial compressive strength fc [Mpa] 29.1 27.2 29.3 34.0 Elastic modulus [×104 Mpa] 3.35 3.32 3.38 3.45 Table 2 Material propertoes of reinforcing bar Reinforcing bar Specification HPB235 HPB235 HRB335 HRB335 Diameter [mm] 8 10 18 22 Yield strength fc [Mpa] 251.3 242.5 412.8 410.5 Elastic modulus [×105 Mpa] 2.16 2.11 2.08 2.11 Test specimens construction The beams and the column below the joint were precast from the same batch of concrete.
The material models of concrete and reinforcing bar are all based on the experiment data.
Construction, PCI Journal, Vol14 (2001), pp.46-52 [2] Alfred.A.Yee: Social and Environmental Benefits of Precast Concrete Technology, PCI Journal, Vol14 (2001), pp.24-30 [3] Robert Park: Seismic design and construction of precast concrete building in New Zealand, PCI Journal, September-October (2002), pp.60-75 [4] Jubum Kim: Behavior of hybrid frame under seismic loading, Ph.D. dissertation, University of Washington, (2003) [5] Zhu Hongjin: Seismic research by experiment for the joint of framed structures comprised of precast prestressed concrete components, Master dissertation, Southeast University, (2006) [6] Ministry of Construction of China: Specification of testing methods for earthquake resistant building, JGJ101-96 (China Architecture and Building Press, Beijing, 1996) [7] Jubum Kim, John Stanton, Gregory MacRae, Stephen Day and Masahiro Sugata: Cyclic loading testing of precast hybrid frame connection, In: Proceeding of 13th World Conference on Earthquake Engineering
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