Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2014
Authors: Qian Li
On the other hand the use of processing three-dimensional model of the surface texture alternativa.engine3d.materials.SurfaceMaterial class of each component color fill, or after setting the texture coordinates; define alternativa.types.Texture classes on the various components mosaic texture material pictures.
Using object-oriented thinking, the system will integrate schedule information, quality information, material information and other information to established dimensional model to form 4D model of the tunnel, to process dynamic simulation of tunnel construction.
In the 3D state, construction design schedule and quality acceptance criteria of separated parts of a project as the two axes, query and export inspection items and engineering information and quality standards information and raw information and material testing information etc of separated parts of a project.
Acknowledgements This work was financially supported by Hunan Provincial Education Department Science Foundation (12C0460).
(In Chinese) [2] Jianping Zhang, Hongjun Wang. : submitted to china civil engineering journal (2003).
Online since: April 2016
Authors: Yi Qiao Shi, Min Tian, Hong Tao Zhao
Introduction Ga-doped ZnO has been widely used in the field of transparent conducting layer (TCL) of solar cell, piezoelectric materials, surface acoustic wave devices, gas sensors since it has excellent optoelectronic properties [1,2].Among most oxide conducting films, ZnO has attracted attention of many researchers and been investigated as an alternative to Indium tin oxide (ITO) because its rich resources, non-toxic, low resistance, high transmittance and simple preparation method [3].
The sputtered films have a composition close to that of the source material and typically have a better adhesion on the substrate than evaporated films [4].
Journal of Materials Science &Engineering, 2007, 25, (4):598-601
Online since: October 2012
Authors: Pei Si Yu, Wei Qiang Wang
Calculation theory and method 2.1 Constitutive model of concrete Concrete material model in ADINA is used in this paper, and it extends the uniaxial stress -strain relation to the complex stress state [3].
Concrete material model can illustrate the different states of tension and compression of dam concrete in earthquake as well as crack and crush failure. 2.2 Constraint-function contact algorithm The interaction between the upper free body and the lower part of the dam under seismic loads belongs to the dynamic contact problems.
The whole finite element model is divided into 3370 elements, with 3548 nodes, which is shown in figure 2. 3.2 Selection of calculation parameters (1) Material parameters of calculation model The material parameters of the dam are: the density of concrete is 2400 kg/m3, elasticity modulus is 25.5 GPa and Poisson’s ratio is 0.167.
Advances in Science and Technology of Water Resources, 2011, 31(4):8-12.
Journal of Hydroelectric Engineering, 2009,28(5):134-139.
Online since: January 2012
Authors: Xue Dong Guo, Cao Jian, Xiang Yang Fang
Test materials and gradation The coarse aggregate, fine aggregate and slag used in this experiment all meet the technical requirements.
Material Composition and Strength Formation Mechanism of the SMA [J].
The World of Building Materials,2009(03)
Journal of Zhuzhou Institute of Technology, 2006(02)
Shanxi Science & Technology of Communications, 2002 (06).
Online since: July 2011
Authors: Kai An Yu, Yu Yu Wang, Ke Yu Chen
Definition of the material property of drum.
The material property of each part of drum is shown as Tab.1.
Tab.1 The material property of each part of storage drum Name Drum Web plate Flange Hub Material Q235 Q235 Q235A ZG230-450 Elastic modulus(Gpa) 190 190 210 200 Shear Modulus(Gpa) 79 79 79 76 Poisson ratio 0.3 0.3 0.28 0.32 Tensile strength 410 410 400 483 Yield strength 235 235 221 248 Creation of constraint.
Furthermore, the material failure stress is 235MPa, and the maximum principal stress of drum should not be more than 116MPa.
[4] Haifeng Yang, Zhihong Liu:Journal of Jiamusi University (Natural Science Edition) Vol.26(2008),p.782
Online since: March 2010
Authors: Hai Bo Qi, Jian Qiang Wang, Li Ning Yang
School of material science and engineering, Shijiazhuang railway institute, Hebei 050043, China 2.
Introduction Using electron beam as the source of processing metal materials and fabricating of metal parts has been drawing increasing attention in recent years.
Eagar: Metallurgical and Materials Transactions.
West: Rapid Prototyping Journal, Vol. 10 (1) (2004), p. 35 [3] H.B.
Online since: October 2010
Authors: Xue Jun Zhang, Su Mei Kang, Zhan Qing Liu
Introduction As for composites, the resulting mechanical properties not only depend on the reinforcement and matrix materials but also have relationship with the interfaces between fibers and matrix, which are stated to be important in improving composites performance [1-2].
In order to achieve good adhesion between the reinforcement and matrix materials, carbon fibers are usually modified by surface treatment to enhance the physical and chemical properties of their surface such as wetting properties, bond forming possibility[3].
Therefore, there is a tough coating on the carbon fiber that can toughen the composite material after curing, enhancing the strength of interface between carbon fiber and matrix.
Fan: Journal of Applied Polymer Science Vol. 79(2001), p.295 [6] Z.Q.
Online since: February 2014
Authors: Hussein A. Kazem, Said Al-Bahri, Saud Al-Badi, Haifa Al-Mahkladi, Ali H. A. Al-Waeli
Materials and Methods In this study, three types of stand-alone PV systems were installed using mono-c, multi-c, and a-Si modules.
Finaly, a common urban air pollutant, sand, is a naturally occurring granular material composed of mineral particles and finely divided rock.
Also, it is recommended to investigate different materials which represent ingredient of dust in Oman (there particles types, size and percentages).
Pajgade, " Strength Appraisal of Artificial Sand as Fine Aggregate in SFRC", ARPN Journal of Engineering and Applied Sciences, Vol. 5, No. 10, October 2010, pp. 34-38.
Online since: December 2013
Authors: Wen Zeng, Yong Ting Pan, Hong Mei Huang
After taking into account the impact of factors on leakage and the difficulty of data collection, the proposed analysis model selects pipe material, pipe diameter, pipe age, road type, leakage times as evaluation factors.
Fig.1 The technological route for analyzing pipeline leakage risk Firstly, we considered that the input data of BP neural network are pipe material, pipe diameter, pipe age, road type and leakage times and the output data are leakage rate of every pipe, and collected these data.
Table1 shows that the order of factors was pipe age, pipe diameter, pipe material, road type, leakage times.
Tab.1The weight of leakage factors leakage factors pipe diameter pipe material pipe age road type leakage times weight 0.2217 0.1866 0.2917 0.1650 0.1350 Then, we use weighted superposition to calculate leakage rate of every pipe.
[2] M.Tabesh, M.R.Delavar, A.Delkhah:International Journal of Environment Science and Technology, 2010,7(1):47-58
Online since: August 2014
Authors: Wen Tang Xia, Juan An, Wen Qiang Yang, Xiao Li Yuan
Manganese Removal from Electrolytic Manganese Residue Using Ozone Wenqiang Yanga, Juan Anb, Xiaoli Yuanc, and Wentang Xiad School of Metallurgy and Material Engineering, Chongqing University of Science and Technology,Chongqing 401331,China yajiny@163.coma, anjuan2692@126.comb, Yuanxiaoli1981@126.comc, wentangx@163.comd Keywords: Electrolytic manganese residue; Ozone; Removal rate; Manganese (II) Abstract: This paper deals with experimental investigations related to removal of manganese (II) from electrolytic manganese residues by using ozone as oxidant.
Experimental Materials and reagents The raw materials were kindly supplied by an electrolytic manganese company of Chongqing Pro- vince, Southwest China.
Hagelstein, Globally sustainable manganese metal production and use, Journal of Environmental Manage- ment 90 (12) (2009) 3736-3740
Showing 80201 to 80210 of 97196 items