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The permeability of materials is closely related to its porosity – the types of pores, its total volume, size, distribution and its mutual connections.
Materials Table 1 provides the overview of the studied plasters.
This was probably caused by the different distribution and size of pores in the materials.
[9] ČSN 72 7031: Determination of water vapour diffusion coefficient of building materials by method without temperature gradient, Prague 2001
Černý, Interlaboratory comparison of hygric properties of porous building materials, Journal of thermal envelope and building science 27 (2004) 307–25.

Up to now, a lot of numerical simulation study and theoretical analysis on mechanical behavior of the fiber-reinforced composite materials have been made.
Composites Science and Technology, 2003, 63:1481–1493
Composites Science and Technology, 2003, 63:1815–1832
Aerospace Materials & Technology, 2012,(6):24-28, (In Chinese)
Journal of Reinforced Plastics and Composites, 1991, 10:331-355 [6] ANSYS Modeling and Meshing Guide.

The engineering foundation data in BIM model provides the effective support for construction enterprise of detailed planning on material, machine and labor force.
The basic attribute information of procured material can be quickly obtained from component list automatically generated from model before material be purchased.
Combined with the progress plan of construction project, the detailed stocking material plan can be worked out.
A reasonable approach sequence and stacking position in site will be determined in order to avoid loss of delay work caused by shortage and waste derived from the material accumulation.
[5] Sun Junlin: Study of the High Efficiency about the Information Management of Modern Construction Project, Journal of Kunming University of Science and Technology (Science and Technology).Vol. 29(2004), p.73-80.

Materials and Experiments The sheets were prepared by GEKONT electron-beam facility L5.
Dubiel: Journal of Materials Processing technology Vol.64 (1997), pp. 53-64 [2] C.
Bhadeshia: Advanced Engineering Materials Vol.3 (2001), pp. 647-656 [3] J.T.
Chen: 40th Aerospace Sciences Meeting & Exhibit AIAA 2002-0502, pp. 1-22 [4] M.L.
Schmidt: 40th Aerospace Sciences Meeting & Exhibit AIAA 2002-0504, pp. 1-20 [5] U.

The boom is a kind of material Q690 mostly, its fatigue strength is greater than or equal to 690MPa, and its tensile strengthis is between 770 ~940MPa.
Fatigue limit of the material is 690MPa, so the maximum stress the boom received meets the strength requirement.
Fatigue Strength model building of the boom The traditional method of evaluating materials fatigue strength is testing fracturelife cycles of rissefreiheit samples under certain sur- alternating load or certain strainamplitude.namely S-N curve.
Each S-N curve of the material is based on the sur-alternating loading's stress ratio,S-N curves under different stress ratio are also different.
Concrete pump car cloth institutions level under dynamic analysis [J].journal of vibration and impact, 1999,8 (3), 77-80 [2] China national standardization management committee.

Introduction The intense need to create technological development and competitive differentiation in the most various markets promotes an incessant search for high performance materials that promote systems improvement, reduction of overall costs and increase in the life cycle of components and equipment.
Robertson: Materials Science and Engineering Vol. 37 (2002), p. 129
Grill: Diamond and Related Materials Vol. 8 (1999), p. 428
Trava-Airoldi et al.: International Journal of Surface Science and Engineering Vol. 1 (2007), p. 417
Li: Materials Chemistry and Physics Vol. 96 (2006), p. 253

Introduction As an engineering material such as rock and concrete widely used in human activities, crack failure of quasi -brittle material have threatened to human life and property, This is because there are natural or man-made inner micro defects, the damage characteristic feature is the fracture of the sudden.
Therefore, it is particularly important to study of the quasi -brittle materials crack.
At present the calculation of the quasi -brittle materials crack for the many numerical methods, the most commonly used is the finite element method.
Acknowledgements This work is supported by National Natural Science Foundation of China (Grant No. 51104026 and 41172265) and the Dalian Science and Technology Foundation (No. 2009J22DW033).
International Journal for Numerical Methods in Engineering, 1997, 40: 727―758

Fig. 1 The schematic diagram of Steel ball cold heading forming mould The material of Simulation is GCr15.
Material model as PLASTC_KINEMATIC.
Grain refinement mechanism analysis and experimental investigation of equal channel angular pressing for producting pure aluminum ultra-fine grained materials.
Materials Science and Engineering A, 437(2006)281-292 [2] Belytschko T, Organ D, Krongauz Y .
International Journal for Numerical Methods in Fluids, 21(1995)901-931 [4] Guan Yanjin, Zhao Guoqun, Wu Xin, Lu Ping.

Plants have also been used as coloring materials.
In the same way, Rahayuningsih L. et al. [2] mentioned that the raw materials used in natural dying should be materials obtained from nature with no economic value.
Removal and Recovery of Hazardous Trip materials.
International Journal Of Cultural Policy. (2012)
Master of Science.

ZnO materials have been used in devices such as solar cell, piezoelectric devices, varistors, surface acoustic wave devices, chemical sensors and ultraviolet (UV) photoconductive sensor applications.
ZnO nanostructures materials showed quantum confinement effect where its properties become sizable independent which become suitable material for optoelectronic applications.
ZnO nanostructures materials also have unique properties such as good transparency, high electron mobility, wide band gap and strong room temperature luminescence.
Many wide band materials such as gallium nitrides (GaN), diamond, titanium dioxide (TiO2) and zinc oxide (ZnO) have been study to fabricate UV sensor.
Sen, Journal of Crystal Growth 256 (2003) 73 [4] Zi-Qiang Xu, Hong Deng, Juan Xie, Yan Li, Xiao-Tao Zu, Applied Surface Science 253 (2006) 476