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Online since: May 2011
Authors: Wen Zhao Chen, Quan Chen Gao, Jun She Jiang
Parameter inversion and model optimization: physical properties of the geotechnical engineering materials and its mechanical characteristics is extremely complex, and indoor test again influenced by many complicated factors such as sample disturbance, the stress path, stress history and stress level and so on .
So the parameters attained by the back analysis can be regarded as the equivalent variables related to the model test materials.
Let for the equivalent elastic modulus of the equivalent wall materials and let for its inertial moment Let for elastic modulus of the core pile materials and let for its inertial moment.
Building Science, 2007, 23(7):78-80.
[9]Kjell Karksrud and Lars Andresen.ASCE,International Journal of Geomechanics,2005, 5(2):107-113
Online since: July 2013
Authors: Shigeru Itoh, Yoshikazu Higa, Hirofumi Iyama
The material of metal plate was copper and the thickness was 2mm.
The material of pressure vessel and metal die was tool-steel.
The values of those constants for the pertinent materials are given in Table 1.
Material constant of Johnson-Cook equation of Copper.
Meyers, Dynamic Behavior of Materials, Wiley-Inter Science, John Wiley & Sons, Inc. 1994.
Online since: September 2013
Authors: Hong Mei Yin, Jin Jun Ji, Ye Chang
Adhering slag: The auxiliary gas flow cannot completely blow down the molten or vaporized materials produced in the cutting process.
The relation between the beam polarization direction and the cutting quality [4] Material number Material name Laser mode Auxiliary gas The relation between the polarization direction and the kerf Kerf shape Kerf evaluation 006 Low-carbon steel pulse oxygen Parallel The kerf was narrow, with low kerf verticality and roughness.
Table 3 The experimental records 1 of the relation between the cutting speed and the nozzle aperture Material number Material name Material thickness mm Laser power w Auxiliary gas Gas pressure/MPa Nozzle aperture/mm Cutting speed mm/s 010 Low-carbon steel 2 1500 oxygen 0.14 1.0 96 011 Low-carbon steel 2 1500 oxygen 0.14 1.5 102 012 Low-carbon steel 2 1500 oxygen 0.14 2.0 96 013 Low-carbon steel 2 1500 oxygen 0.14 2.5 92 014 Low-carbon steel 2 1500 oxygen 0.14 3.0 87 Table 4.
Chinese Journal of Lasers, 2006, 33 (11): 1581-1584
Tianjin: Tianjin Science & Technology Press, 1992
Online since: September 2013
Authors: Yuan Guai Lin, Shun Yu Long
It enables robust network nodes to be built with very low total bill-of-material costs.
Acknowledgement In this paper, the research was sponsored by university and local government technological cooperative of SanYa (project No. 2012YD02), the Nature Science Foundation of Hainan Province (Project No. 612127) and science research of education of Hainan province (project No.
Journal of Qiongzhou University,2009,(5):32-34,37.
Advanced Materials Research,Vols. 383~399,pp.4358–4364
Online since: May 2012
Authors: Zhong Hua Zhao, Xin Ching Xu
Multi-channel extruding technology in lead-free wheel balancer XINCHING XU 1, a, ZHONGHUA ZHAO 2,b 1 Engineering Training Center of Shanghai University of Engineering Science,Shanghai,China 201620 2 Engineering Training Center of Shanghai University of Engineering Science,Shanghai,China 201620 axincheng@sues.edu.cn, bzhaohua@sues.edu.cn Keywords: automobile, wheel balancer, Lead wheel balancer, steel wheel balancer, upper limit analysis Abstract If the weight of automobile wheel is not equally distributed, the automobile is not safe in high speed running.
For lead wheel balancer die-cast, the cost of raw material is high and the energy consumption is large.
In the term of the same volume of material deformation during extrusion, the same of inflows and outflows in Ⅰ, Ⅱ, Ⅴ and Ⅲ, Ⅳ, Ⅵ.
By the analysis of flow steps, the volume of the middle lack of rough material can be calculated.
[3] Xu Xincheng,Zhao Zhonghua,Zhang Shuizhong:Journal Of Plasticity Engineering, Vol.13 No. 4(2006) ,p.71-74 [4] Zhang Shuangjie,Liu Yuzhong,Dai Xuerui,etal:Forging & Stamping Technology,Vol.34 No.4(2009) ,p.99-102 [5] Xu Xincheng,Shen Yonggang:Joumal of Donghua University,Vol.27 No.4(2010),p.584-589
Online since: January 2005
Authors: Jae Hee Kim, Jungmin Hong
Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications A GAM for Daily Ozone Concentration in Seoul Jaehee Kim 1 and Jungmin Hong 2 1 Department of Statistics, Duksung Women's University, Seoul, S.Korea 1 jaehee@duksung.ac.kr, 2 hjminmin@hotmail.com Keywords: ozone, air pollution, meteorology, generalized additive model (GAM), locally weighted regression smoother (LOESS), bandwidth.
Its statistical applications to the environmental sciences are increasing and they play an important role in environmental monitoring and assessment.
On the surface, ozone is harmful, with destructive impacts on materials, crops, and health.
LOESS Plots with the Bandwidth 0.2 in the proposed GAM Concluding Remarks The Seoul-area ozone study showed that statistical models guided by atmospheric science could explain much of the relationship of ozone concentrations in terms of meteorological factors and air pollutants.
Perez, A.: Trier, Statistical Modeling and Prediction of Atmospheric Pollution by Particulate Material: Two Nonparametric Approach, Environmetrics Vol. 12 (2001), p147159
Online since: October 2010
Authors: Wen Li Zhao, De Gang Liu
(11) Where N is the number of cycles to failure, m and C are the material constants of structure.
Acknowledgments The work is supported by National Natural Science foundation of China (50875070) and Planned Projects of Zhejiang province Government (2007C21081).
Zhu: Random Vibration (SCIENCE PRESS, Beijing, China,1998) pp.21-69
[6] Willems, Easley and Rolfe: Strength of Materials (McGraw-Hill Book Company, New York, America,1981) pp.381-422
Lu: Chinese Journal of Applied Mechanics, Vol.16 (1999), No.1, pp.100-10 the weak link ),,( 000 zyx
Online since: January 2013
Authors: Yan Xing, Jun Ni, Wen Cheng Tang
Moreover it considers more constraints, such as materials, requirements, production resources, transport resource, and funds.
The process is shown as Fig. 3. 2) 3D Model transfer of design information Model-based definition method is applied to define structural multi-views data model considering 3D model, engineering design information, material properties, machining information, assembly relations, as well as the production process.
Dissertation, Huazhong University of Science and Technology 2010)
Ceglarek: Journal of Manufacturing Science and Engineering.
Online since: April 2013
Authors: Ali Ourdjini, Esah Hamzah, Siti Rahmah Shamsuri, Abdelsalam Ahdash
MATERIALS AND METHOD Before starting the design of impressed current, cathodic protection system, there are certain preliminary data that need to be gathered like the physical dimensions of structure to be protected (for example, length, width, height and diameter.
These data are used to calculate the surface area to be protected), corrosion history of structures in the environment (it may reveal abnormal conditions that hamper the ICCP function) [4], review pH data (steel's corrosion rate increases as pH decreases)[5], current requirement (the amount of current required per square meter current density to change the structure’s potential to -0.85 volt ), coating resistance (decreases greatly with age and directly affects structure-to-electrolyte resistance for design calculations. and manufacturers usually supply coating resistance values) and selection of anode material, weight and dimensions (cylinderical Aluminium anode was chosen [2; 4].
Journal of Mechanical Science and Technology, 2004. 18(4): p. 592-596
Corrosion Science, 2009. 51(10): p. 2253-2258.
Online since: May 2014
Authors: Bin Bin Li, Juan Li Zhao, She Liang Wang
At present, there are many in-depth researches done on the material properties of the RAC by many scholars.
Acknowledgements This work was financially supported by the Natural Science Foundation of China (51178388510824); the Scientific Research Project of key laboratory in Shaanxi province department of education (11JS059, 12JS055); the Project of visiting scholar of key laboratory in Shaanxi province (12 JS055) ; the Innovation Fund Project of science and technology in China coal geological bureau of aerial remote sensing.
Journal of southeast university,Vol.40, Issue.6(2010), p. 1247-1251
Conference on the Use of Recycled Materials in Building and Structures, November 2004 Barcelona, Spain