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Co-digestion of difficultly biodegradable organic matter and easily biodegradable organic matter not only can handle two materials in the same time, but also can promote the decomposition of two materials and improve the biological efficiency rate of raw materials [5].
The characteristics of methane production for DG, KW, and the different mixing ratio of these two materials were studied, and hope to find influence of the mixing proportion on SS-AD.
Materials and methods Experimental material.
China Environmental Science, 2008,28(8):730-735
Journal of Hazardous Materials, 2007,142(1/2):288-296

Liangc CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, 230026, P.R.China a wanghl@mail.ustc.edu.cn, bxxwang@ustc.edu.cn, chliang@mines.edu ¶ Corresponding author Keywords: Molecular dynamic (MD), Metallic glass (MG), Stress induced crystallization, Strain rate Abstract.
Recently, fabricating a nanocrystalline of an amorphous material has been investigated [1].
It is observed that a compressive stress introduced to an amorphous material induces crystallization in low strain rate region.
Agron, Science, Vol. 295(2002), p. 654 [5] J.
Liang: Chinese Journal of Material Research, Vol 17(2003), p. 262

Floor live load standard value QK = 8KN/m2, material of floor surface is terrazzo, thickness of cement mortar layer is 20 mm , Lime mortar thickness is 15mm in the bottom of floor and beam side ,Using reinforced concrete one-way slab ribbed floor, Layout shown in Figure 1.
Journal of Railway Science and Engineering.Vol.
[2] W.W.Yu.etal:instantanenous and long-time deflection of R.C.beams under woking loads(journal of ACI,1960 [3] Dongtao Xia and Yingming He: submitted to Journal of Hubei Polytechnic University (2004) In China [4] Penyun Feng and Bing Wu: submitted to Civil Engineering and Architecture (2008) In China [5] Information on http://www.buildingstructure.com.cn

Polymeric fluids, owing to their viscoelastic characters, are of particular interest in the numerical simulation because of their wide applications in material processing and their different behavior from that of Newtonian fluids in ways which are often complex and striking.
Journal of Hydrodynamics Ser.B, Vol.19 (2007), pp.241-248
Journal of Xi’an Shiyou University (Natural Science Edition), Vol.23 (2008), pp.43-55.
Journal of Hydrodynamics, Ser.B, Vol.19 (2007), pp.210-216

For coulomb dry friction material, the friction coefficient of the sliding stage does not vary with a change of speed change, dynamic friction is constant, therefore, in accordance with the principle of energy consumption equivalence two types of friction can be classified as a class, friction is constant in the process of sliding.
Acknowledgements This work was financially supported by A Project of Shandong Province Higher Educational Science and Technology Program (J12LG03).
References [1] MC Constantinou, A Mokba,etc: submitted to Journal of Structural Engineering (1990) [2] A Mokba, MC Constantinou,etc: submitted to Journal of Structural Engineering (1991) [3] J Q Zhu: submitted to Earthquake engineering and engineering vibration (1982) [4] X G Ye: submitted to Journal of hefei university of technology (1998)

Examples Assuming that diameter of rod s is 5mm, length of per connecting rod is 160mm, on the left for the two connecting rods, on the right for a connecting rod, material of connecting rod is 45 steel, then k1 equals 49.06kN/mm, k2 equals 24.53kN/mm.
References [1] He Baoxiang, Shen Huiping, Xue Guoxin : Journal of Engineering Design.
Vol. 18(2011), p365-368 [2] Huang Peng, Wang Liping, Guan Liwen: Journal of Mechanical Engineering.
Vol.9(2011),p77-80 [5] Li Bing, Wang Zhixing, Li Jiansheng: Mechanical Science and Technology.
Vol.18(1999), p41-44 [6] Jiao Changke, Li Aiqun: Journal of Vibration Engineering.

Material selection: the pinion for 35CrMo and the large gear for ZG35SiMn.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (51075047).
References [1] Jiang Ting, Chen Yanqing: Journal of Hubei University of Technology.
[2] Chen Dianhua, Li Yuguang: Journal of Engineering Design.
[5] Liu Hesong, Jiang jing: Journal of Coal Mine Machinery.

Stereophotogrametric determination of crack initiation and propagation in tooth root Boris Aberšek1 , Nenad Gubeljak 2, Jožef Predan 2 , Jože Flašker2 1 University of Maribor, Faculty of Natural Science and Mathematics, Koroška 160, 2000 Maribor, Slovenia (boris.abersek@uni-mb.si) 2 University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, 2000 Maribor, Slovenia (Nenad.gubeljak@uni-mb.si, jozef.predan@uni-mb.si, joze.flasker@uni-mb.si) Keywords: fracture mechanics, service life, mathematical models, photogrammetry AbstractFor designing machines and devices the dimensioning with respect to service life is increasingly taken into account.
The problem of determination of the service life of gearing is directly related to geometry of gears, multiaxial loadings, materials and appropriate models for prediction of the crack propagation.Obviously gears and gearing belong to the real complex structure, by correctly selected and carefully planned experiments we obtained results with which we can confirm and justified the mathematical model for calculating different parameters, i.e.
In order to calculate the fracture mechanic parameters as precisely and reliably as possible we need good mathematical models for describing loading/load condition, geometry of the calculated structure and properties of materials [2].
Flašker: Numerical methods for evaluation of service life of gear, International Journal for Numerical Methods in Engineering, Vol. 38, 2531-2545, (1995)

Recently, thin foam films are applied to cushion materials on various instruments, such as mobile phones, tablet computers, etc. because of reducing load due to drop impact or collision.
To protect against impact damage, foam films are applied to the devices as cushion materials that can reduce impact load due to dropping or collision.
Lee, Drop/impact tests and analysis of typical portable electronic devices, International Journal of Mechanical Science, Vol. 50 (2008), pp. 905-917

Low Temperature Co-fired ZnNb2O6 Dielectric Ceramic Doped by B2O3 Jian Yanga, Jikang Yanb, Jinghong Duc, Fangchun Yand, Kunyong Kange, Jianhong Yif and Guoyou Gang* Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093 China Key Laboratory of Advanced Materials of Precious-Nonferrous Metals, Ministry of Education, Kunming 650093 China Kunming Key Laboratory of Advanced Materials of Precious-Nonferrous Metals ayj_ccsvc@126.com, b307688386@qq.com, ccldjh@sina.com, dyanfangcun@126.com, e15368050138@163.com, fyijianhong@kmust.edu.cn, gganguoyou@kmust.edu.cn Keywords: ZnNb2O6, B2O3, Microwave dielectric ceramic, LTCC, Doping.
Furthermore, B2O3 doping can generate liquid phase and reduce the activation energy of diffusion to promote the materials sintering.
The dielectric loss of the microwave dielectric materials at microwave frequency includes intrinsic and extrinsic loss.
The authors would like to acknowledge Key Laboratory of Advanced Materials of Yunnan Province and Key Laboratory of Advance Materials of Precious-Nonferrous Metals, Education Ministry of China for providing the facilities required for the present investigation.
Jantunen, Low loss dielectric materials for LTCC applications: a review, Int Mater Rev. 53 (2008) 57-90