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Journal of Agro-environmental Science. 2004, 23(1): 151-153
Journal of Hazardous Materials. 29, July, 2002 B96(2003): 291-303
Journal of Agro-Environment Science. 2006, 25(1): 175-178
Journal of Anhui Agricultural Sciences. 2007, 35(26): 8098-8099
Journal of Agro-environmental Science. 2004, 23(6): 1196-1199

Normal voltage rises sharply in the inner layers of unidirectional material compared to layers with cross-reinforced materials.
Analysis of stress-strain state of naturally twisted rods of composite materials allows revealing features of the reinforced material in a flexural-torsional coupling.
When stretched, even for weakly twisted bars with large relative thickness when using composite materials on the edges may arise compressive (tensile) stress, which is undesirable for reinforced materials.
Shorr, For experimental verification of the theory of stretching twisted bars, Journal of Russian Academy of Sciences.
Rao, Analysis of Curved Laminated Beams of Bimodulus Composite Materials, Journal of Composite Materials, 17 (5) (1983), pp. 435-448

Effect of Aggregate Size and Gradation on the Ceramsite Sound-absorbing Materials LUO Xiangyu 1,2,a LI Wenfang1,b JIN Xueli3,c 1College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China; 2Guangzhou Building Materials Institute Co., Ltd.
Journal of Jiamusi University (Natural Science Edition), 2008, 5(26): 680-682 [5] GUO Wenjie, WAN Jinquan, MA Yiwen, WANG Yan.
Journal of South China University of Technology (Natural Science Edition), 2009, 12(37): 70-74 [6] YE Jiandong,, LUO Fangcong.
Journal of South China University of Technology (Natural Science Edition), 2010, 4(38): 71-75 [7] Iwase, T.
ACI Materials Journal, 2004,101(1): 82-91 [15] Neithalath, N.

Fig. 2 Shading performance of horizontal louver shading materials in summer Fig. 3 shows the shading performance of horizontal louver shading materials in winter.
Fig. 3 Shading performance of horizontal louver shading materials in winter Fig. 4 Shading performance of vertical louver shading materials in summer Fig. 5 Shading performance of vertical louver shading materials in winter IV.
Yuan, “Study on Residential Buildings with Energy Saving by 65% in Ningbo,” Journal of Ningbo University (Natural science & engineering edition).vol. 23, pp. 84-87, 2010
[5] HU Xing-yun, XU Jin and ZHANG Jin-quan, “Study on the Modern Rural Residence Planning with Regional Features of Fanshidu Village,” Journal of Ningbo University (Natural science & engineering edition), vol. 24, pp. 110-114, 2011
[8] GAO Hua-sheng, YANG Xiao-xian and CHEN Yu –hui et al., “Water Pollution Control in Rural Villages: Case Study,” Journal of Ningbo University (Natural science & engineering edition), vol.23, pp.74-78, 2010

Konieczny, Structure of EN AW-Al Cu4Mg1(A) composite materials reinforced with the Ti(C,N) ceramic particles, Journal of Achievements in Materials and Manufacturing Engineering, 51/1 (2012) 22-29 [8] M.
Adamiak, Composite materials based on EN AW-Al Cu4Mg1(A) aluminium alloy reinforced with the Ti(C,N) ceramic particles, Materials Science Forum 530-531 (2006) 243-248 [12] A.J.
Series: Materials Science and Engineering 35 (2012) 012020 doi:10.1088/1757-899X/35/1/012020
Wieczorek: Al-FeAl-TiAl-Al2O3 composite with hybrid reinforcement, Journal of Materials Processing Technology Vol. 162-163 SPEC.
Dreyer, Ti(C,N) cermets-metallurgy and properties, International Journal of Refractory Metals and Hard Materials 13 (1995) 343-351 [19] K.

As we know, bush-burning is one of the main forms of the engine failure or even damage due to the Inadequate supply or partial lack of oil between crankshaft main journal and crankshaft bearing as well as the rod journal and rod bearing in a high temperature and high speed working environment.
Using the default solver of FLUENT, and setting the operating pressure to a standard atmospheric pressure, without considering the acceleration of gravity, choosing engine oil from FLUENT material library as the fluid, setting the initial temperature to 25℃, taking the energy equation into consideration and based on SIMPLE algorithm, then conduct the flow field simulation.
Compared to the flow field of the clearance between rod journal and bearing shell, the effective flow cross-sectional area is enlarged because of the tank between the crankshaft main journal and bushing, so that the overall average oil flow velocity becomes larger, majority of the oil flows directly along the tank with little from the major arc.
Acknowledgements The authors gratefully acknowledge the financial support from the National Natural Science Foundation of the P.
[4] Yong Li, Zhiyou Liu and Yijie An: submitted to Journal of Hydrodynamics, 2001, 16(2): 254-258, in Chinese.

[9] Junjie Yao, Baoshun Li, Xiaoxian Huang et al.: Journal of Inorganic Materials Vol. 12(1997), p. 47-53, in Chinese
[10] Jiehua Wu, Baoshun Li, Cheng’en Li et al.: Journal of Basic Science and Engineering Vol. 8(2000), p. 38-43, in Chinese
[18] Caiyun Yang and Jialu Li: Journal of Donghua University, Natural Science Vol. 31(2005), p. 53-58, in Chinese
[20] Guojun Wang, Ying Sun, Binbin Shi et al.: Journal of Materials Engineering Vol. 2(2009), p. 332-335, in Chinese
[23] Chaokun Yang: Journal of Materials Engineering Vol. 7(2002), p. 33-39, in Chinese.

Landgraf: Materials Science Forum Vols. 498-499 (2005) p. 129-133
Journal of Magnetism and Magnetic Materials, Vol. 345 (2013), p. 147-152
F.de Campos: Journal of Magnetism and Magnetic Materials Vol. 328 (2013), p. 53–57
Missell: Journal of Magnetism and Magnetic Materials Vol. 320 (2008), p. e73-e76
Landgraf: Materials Science Forum Vols. 727-728 (2012), p 169-174

Badawia Faculty of Science, Physics Department, El-Minia University, Egypt aemadbadawi@yahoo.com Key words: 2024 Alloy, Activation Energy, Electrical Measurements, Isothermal Annealing, Positron Lifetime Technique Abstract Positron annihilation lifetime (PAL) measurement is one of the most important nuclear techniques used in materials science.
Electrical measurements are also used in materials science.
Stott: Canadian Journal of Physics, 52 (1974) 759 [8] W.
Badawi, Journal of Materials Science and Engineering, 5[3] (2011) [16] W.
Brown: Journal of Applied Physics, 22 (1951) 1012 [17] I.

Intelligent materials based on the functional materials, there are two major categories.
Realize the using function product need science and technology to support.
This design acquired award of American popular science magazine.
For instance, self-adjusting, shape memory materials, photochromic materials, thermochromism materials, electrochromic material, etc.
Journal of mechanical engineering.