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Online since: May 2012
Authors: Hai Lei Kou, Ming Yi Zhang, Ying Tao Shan
The construction sequence is: the excavators carry the tones from raw material dump to construction area, and then throw the first filling equably in homework range with excavators.
Fig1 The relationship of blow count and Fig2 The relationship of blow count and depth of fifth point depth of eighth point Conclusion 1) Experiments proved that the determinated riprapping program according to the practical situation is successful. 2) The project adopts the riprapping method, the filling material composition in construction and construction method play a critical role in the riprapping effect.
In the filling material composition, the filling stone diameter should be limited in 500mm and the stone contains less clayey soil and construction waste as far as possible; in the construction method, we must use the riprapping method strictly and can not use the push filling method. 3) The riprapping method applies to the layer with small silt area and small thickness, but in the engineer practice it also used in the larger area and big thickness silt layer.
References [1] LI Ping, CHEN Li—qun.Application of Stone Fling Mud—Extracted in Soft Base Process [J].Journal of Xiangtan Normal University: Natural Science Edition, 2009, 31 (2) :103—106. ( in Chinese) [2] ZHOU Sheng, ZHANG Wei, LI Ping.
Online since: November 2011
Authors: Shi Hui Luo, Wei Hua Ma, Zhi Qiang Liu
Linear elastic material, Aluminum Alloy EX=7.0e4MPa, PRXY=0.33,DENSITY=2700kg/m3 is selected.
A infinite element model is built up. 2 Evaluation of mechanical properties and intensity of the material and intensity Because the material of the skirt board is Aluminum-based, a safety coefficient of 1.5is used.
Journal of the China Railway Society 2009.31 (2): 120-124
Effects of natural wind on aerodynamic characteristics of high-speed maglev train[J].China Railway Science, 2007,4:65-7.
Online since: October 2010
Authors: Di Li, Wen Qian Kang, Peng Wei Guo
Compared with common stamping parts, auto body panel has the following characteristics: thin material, complex shape, free-form surface, large structure size and high surface quality, therefore its forming process design is different from common mechanical processing [5].
Batra: International Journal of Machine Tools & Manufacture.
Hu: Materials science & technology.
Online since: December 2012
Authors: Tao Liu, Jun Lou, Yue Ming Liu, Xiao Hong Huangfu, Qing Mu Cai
Due to running in the high temperature and high pressure environment, the security problems become increasingly severe owing to material aging and high temperature creeping damage which was resulted in pipeline leakage or explosion accidents, so the pipeline security monitoring techniques have received more and more attentions.[1] Currently artificial methods are adopted commonly domestically to do the annual inspection for the monitoring of high temperature pressure pipeline, and it has so many disadvantages, such as need stopping production, low efficiency of detecting and poor level of security.
(2) ci is a parameter related to the material characteristic, geometric characteristic and operating conditions(temperature and stress).
ACKNOWLEGEMENTS This paper was supported by Key program for science and technology development of Zhejiang Province (No.2010C11068) and Natural Foundation of Zhejiang Province of China (No.Y1091078) REFERENCES [1] Li Bing, He Xuehong, Wang Zheng, “Analysis of high temperature pressure pipeline's life prediction models and technical”, Machinofacture, Vol.45, No511, 2007, pp.59-61
[3] Xu Jun, “Feasibility Study on Strain Monitoring of Bridge Structure Based on Fiber Bragg Grating Sensing Technology”, The world of building material, Vol.31, No.2, 2010, pp.99-102
[4] Chen Kang, “The analysis of ID authentication Journal of Zheng De College”, Vol.2 No.1 April 2004, pp.18-22
Online since: August 2014
Authors: Guan Qing Wang, Dan Luo, Jiang Rong Xu, Ning Ding, Ri Zan Li, Min Hui Fan
Characteristic of low calorific fuel gas combustion in porous burner by preheating air Minhui Fan1,a, Guanqing Wang1,b, *, Dan Luo1,c, Rizan Li1,d, Ding Ning1,e,Jiangrong Xu1,f 1Energy Institute, College of Science,Hangzhou Dianzi University,Hangzhou, China afmh5150785@163.com, bgqwang@hdu.edu.cn, crodin@hdu.edu.cn, dlrz520393@sina.com, etinin@hdu.edu.cn, fjrxu@hdu.edu.cn *Corresponding author Keywords: preheating air,low calorific fuel gas,porous media combustion,flame propagation Abstract.
Barra et al [9] reported the influence of the porous material on flame stabilization by numerical method.
They concluded that the material properties of porous media significantly affect the stable operating range.
All the arguments mentioned above were mainly foucsing on the influences of the equivalent ratio, velocities, matrix material on flame shape, location, and stablization.
Journal of Chemical Industry and Engineering, , 63( 2012): P.1893
Online since: October 2014
Authors: Kai Wei Jiang, Yu Tian Pan, Guan Jun Wang, Jing Xiao
Dispersion management and nonlinearity enhancement in a hybrid nanofiber with a high index, cross-slot-structure nanocore Kaiwei Jiang1 ,*,Yutian Pan1 ,*, Guanjun Wang2 , Jing Xiao3,4 1College of Mechatronic Engineering, North University of China, Taiyuan 030051, China 2Shanxi Provincial Research Center for Opto-electronic Information and Instrument Engineering Technology, North University of China, taiyuan, shanxi, China, 030051 3School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan, P.R.China, 610054 4Shenzhen Lanke Electronics Co.
As the nonlinear efficiency is defined as γ = 2πn2/λAeff, where n2 is the nonlinear refractive index, λ is the operating wavelength and Aeff is the effective mode area, the nonlinearity of PCF can be optimized via the nonlinear refractive index, n2 of the material and the effective mode area, Aeff, which is determined by the fiber structure[2,3,4].
A nonlinear ratio of ~11,000 W−1km−1 has been proposed by utilizing high nonlinear liquid CS2 slot-structure core and high nonlinear bismuth background material [6].
Lin An, Zheng Zheng, Yusheng Bian, Zheng Li, Sen Shi, Tao Zhou and Jiangtao Cheng, Dispersion-Modified, Highly-Nonlinear Holey Fibre with a High-Index, Slot-Structure Core, Journal of Optics 12, 115502,(2010)
group=CRYSTALS&material=SiO2,2013-08-30 [11].
Online since: January 2013
Authors: Xue Hong Liao, Gang Cheng Zhou, Quan Xin Zhu, Wan Qing Xiong, Jian Lei, Wen Xiang Ye
The Microwave Synthesis and Photocatalytic Activity of ZnO/TiO2 Nanocomposites Gangcheng Zhou, Quanxin Zhu, Wanqing Xiong, Jian Lei, Wenxiang Ye and Xue-Hong Liao* Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization,The College of Chemistry and Life Science, Huanggang Normal University, Huanggang, 438000, Hubei, P.R.China Email: liaoxuehong@sohu.com Keywords: ZnO/TiO2 nanocomposites; Microwave synthesis; Photocatalysis; Degradation;Methyl orange Abstract.
The rectilinear track described indicates that the reaction of photocatalytic degradation of methyl orange is in accord with first order kinetics and the rate constants calculated is 0.0004s-1 Fig.6 Kinetics of photo-degradation of methyl orange Photocatalytic reaction catalyzed by nanocomposites material is carried out through transferring and separating photocarrier between semiconductors with nearly the same but different energy-gap, which enhances efficiently photocatalysis.
Acknowledgments: This work is supported by Foundation of Department of Education in Hubei province of China (D 200627001) and Functional Materials Research Team of Huanggang Normal University.
Journal of Photochemistry and photobilogy A; Chemistry. 141(2001)209-217.
Online since: August 2013
Authors: Jie Rui, Bing Wang, Zong Ren Wang, Guo Ming Li
Economic analysis of the main influence factors to the reinforcement for in-service bridges 1.1 Economic influences of initial cost to reinforcement of in-service bridges Reinforce initial cost of the structure of the bridge is refers to the direct costs of bridge structure reinforcement, Including labor, equipment and machinery purchase or licensing fee, material fee, management fee, all sorts of all sorts of construction increasing fee and other related costs, etc., In the practical analysis of reuse and recycling fees can be deducted [3]. 1.2 Economic influences of limiting or interrupting transportation costs to reinforcement of in-service bridges With the development of economy, a growing interdependence between various industries and the importance of transport network in the whole economic development comes more and more obvious.
Therefore, an economic evaluation of bridges in service, bridge reinforcement project construction period internal cause obstruction or interrupt the traffic caused by the economic loss of cost is a factor cannot be ignored. 1.3 Economic influences of inspection and maintenance cost to reinforcement of in-service bridges Regular inspection and maintenance are minor repairs and maintenance work, generally does not affect the capacity of Bridges, Only includes labor cost involved, replace railings, local repair paint and other materials consumed and machinery and so on. 1.4 Economic influences of the repairing cost to reinforcement of in-service bridges Bridge repair [3] refers to the repair, replacement of main bearing component of the structure of the bridge, Such as small and medium-sized bridge bearings, expansion joints, etc.
Journal of Chang’an University(Natural Science Edition 2004,5:135 [4] Peilun Ye,Yanan Yu.
Online since: February 2013
Authors: Ya Guang Kong, Zhao Tong You, Tian Jun Chen, Xiao Fei Hu
China 310018 2Zhejiang Academy of Agricultural Sciences, Hangzhou city, Zhejiang Prov.
However, each part of this industrial chain exists various influences, especially the raw material production part, these cause the bee products’ various quality problems and affect our bee products’ sale in domestic market and exports, finally lead to the great loss.
Journal of Shanxi Agricultural University,2007, 27(2): 196~199
Internet of Things barcode technology and radio frequency identification technology[M].Beijing: China materials press,2011
Online since: January 2010
Authors: Adele Carradò, Gerhard Ziegmann, Heinz Palkowski, Olga Sokolova
The aeronautic industries always have been a source and driving force for the development of new materials and material compounds.
In forming analyses a too high shear load/weight ratio is the most frequent case for failure of sandwich materials.
Some defect can appear in sandwich materials, with and without reinforcement.
Fleck, International Journal of Mechanical Sciences, 46 (4) (2004), p.585608
Palkowski., Materials and Manufacturing Processes, (24) 2009, 1-5.
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