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Materials and Methods Microorganism The wild type strain of Aspergillus niger was collected from the Department of Microbiology, University of KwaZulu-Natal, South Africa.
Journal of American Science, 6 (2010)1222–1229
Journal of Food Science and Technology, 47 (2010) 365–371
Journal of Applied Sciences, 7 (2007) 3687–3695
Journal of Dairy Science, 41 (1958) 1683–1692

The features are showed as weakening and damage of the material characteristic and so on.
Thirdly, count rockmass material parameters using eq. (3), (4)… and (7).
Shanghai: Shanghai Science and technology Press
Journal of Shijiazhuang Railway Institute, 11(4),p.10~16 [3] Qu, H.F., Yang, Z.C., Zhu, H.H. and et al.(2007).
Chinese Journal of Rock Mechanics and Engineering, 19(1), 89-92

China 2School of Economics and Management, University of science & technology Beijing, P.
European Journal of Operational Research, Vol. 189.1(2008),p.72–193
International Journal of Production Economics, Vol.26.1-3(1992), p.125-134 [3] D.
International Journal of Production Economics, Vol.71.l-3 (2001),p.429-438
Industrial Engineering Journal,Vol.8.6 (2005) p.99-103

Table 1 - Comparison among the two experimentations in literature on WJP in air and the current one Material do [mm] Nozzle/ Focuser p [MPa] SOD [mm] f [mm/min] δ [mm] ϑ [°] Max stress [MPa] Depth [µm] Hashish [9] Al7075T6 0.3 fan 310 45 762 / 0 -150 250 Motter [4] C40 (steel) 0.3 normal 100 → 300 40 → 70 1000 → 6000 0.5 0 -250 / Present study 39)iCrMo3 (steel) 0.3 normal 100 40 → 70 500 → 1000 0.5 0 -303 20 Results.
Saka, Use of cavitating jet for introducing compressive residual stress, Journal of manufacturing science and engineering, 2000 [6] H.
Macodiyo, Optimization of cavitation peening parameters for fatigue performance of carburized steel using Taguchi method, Journal of materials processing technology, 2006 [7] M.
Odhiambo, Cavitation shotless peening for improvement of fatigue strength of carbonized steel, international journal of fatigue, 2003 [9] M.
Jenkins, Residual stress induced by water jet peening: a finite element analysis, Journal of Pressure Vessel Technology, Transactions of the ASME, v 126, n 3, p 333-340, 2004 Figure 7 Figure 6 Figure 5 Figure 4

Aerated concrete composite reinforced concrete shear wall thermal insulation layer stress analysis and crack control Yang mu1,a, liang jian guo 1, b, yang wei jun1, c 1changsha university of science and technology ; engineering and architecture, Changsha hunan 2changsha university of science and technology ; engineering and architecture, Changsha hunan 3changsha university of science and technology ; engineering and architecture, Changsha hunan a729420549@qq.com, bjgliang1963@163.com, cmgbyrh@163.com Key word: aerated concrete; composite shear wall; temperature stress; peel stress; drying shrinkage; failure criterion;crack control.
According the failure criterion of material and adhesive surface, to determined the cracking mechanism and crack control of aerated concrete thermal insulation layer.
the calculation too complex to complete.So in this article a over-lapped model of composite material mechanics is used to construct the model needed in this study，using energy method obtained the solution of the stress between the wall layer in the form of series,compared with the exact solution of the beam on the elastic foudation form the material mechanic,translated the series solution into exact solution. using the equilibrium of the wall.
Journal of building structures [10]Pan zuanfeng,Lu zhitao,Meng shaoping, research of Reinforcement on high strength concrete shrinkage and creep effect [J].
China Civil Engineering Journal [11]GB50009-2001 Code for the design of building structures [S]

The research and application of the high performance inorganic insulation materials are solicited, because the traditional organic insulation materials representative with polystyrene have some defects, such as poor fire resistance, poor durability, short service and no synchronous with the life of structure, and environmental pollution.
The equation may be written as (1) where R is thermal resistance of multi-material layer; δi is material thickness; λi is thermal conductivity of the i layer materials.
References [1] Ji lin Ke Long decoration Engineering:Computer Knowledge and Technology(Natural Science) Vol. 33 (2006), p. 92,in chinese
Kowsary:Journal of Building Physics Vol.32 (3) (2008), p. 243–260
Cabeza:Journal of Solar Energy Engineering Vol. 131 (4) (2009), p.1006

Acknowledgement This work is supported by the National Natural Science Foundation of China under grant 50975291.
Handschuh: Journal of Mechanical Design, ASME Vol. 113(1991), p. 55 [2] C.Y.
Fong: Journal of Materials Processing Technology Vol. 114 (2001),p.22 [4] Y.P.
Fong: Journal of Mechanical Design, ASME Vol. 129(2007), p.1294 [5] Y.P.
John: Journal of Mechanical Design, ASME Vol. 130(2008), p.072601-1 [7] A.

Wallace, A Review of Laser Welding Techniques for Magnesium Alloys, Journal of Materials Processing Technology, 171/2, (2006), p. 188-204 [6] A.
Jeonghan, Investigation of Laser Remote Welding using Disc Laser, Journal of Materials Processing Technology, 201, (2008), p. 521-525 [9] A.S.H.
Birur, Effect of Welding Speed and Defocusing Distance on the Quality of Laser Welded Ti-6Al-4V, Material Science and Tecnology, Houston, Texas,(2010), p. 2787-2797 [10] S.H.
Tsay, Tensile Properties of LBW Welds in Ti6Al4V Alloy at Evaluates Temperatures below 450 °C, Materials Letters, 57, (2003), p. 1815-1823 [11] EN ISO 13919-1: 1996.
Rack, Phase Transformation During Cooling in α+β Titanium Alloys, Materials Science & Engineering, A243, (1998), p. 206-211

Material and Method Feed Materials.
Table 1 shows the characteristics of feed materials.
Total solid (TS), volatile solid (VS), total carbon (TC) and total nitrogen (TN) of feed materials were measured before and at the end of digestion period.
The high initial biogas production attributed to the preferential digestion of readily biodegradable organic materials like carbohydrates.
The dissipation of the readily biodegradable organic materials may have caused temporary biogas production decrease subsequently.

Series: Materials Science and Engineering. 36 (2012) 1 - 6
Dharma Rao, Experimental determination of turbulent forced convection heat transfer and friction factor with SiO2 nanofluid, Experimental Thermal and Fluid Science. 51 (2013) 103-111
Anuar, Comparison of convective heat transfer coefficient and friction factor of TiO2 nanofluid flow in a tube with twisted tape inserts, International Journal of Thermal Sciences. 81 (2014) 84-93
Dey, Thermophysical and pool boiling characteristics of ZnO-ethylene glycol nanofluids, International Journal of Thermal Sciences. 62 (2012) 61-70
Eastman, Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids), International Journal of Heat and Mass Transfer. 45 (2002) 855-863