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(3) For steel aqueduct, due to the yield limits of the materials are comparatively high, it is possible side torsion buckling failure is earlier than the strength failure.
Guan: Mechanics of Material (Higher Education Press, Beijing, 2002) [2] G.S.
Chen: Stability Theory and Design of Steel Structures (Science Press, Beijing, 2006) [5] C.Q.
Ji: Journal of North China University of Water Resources and Electric Power, Vol.18(1997), p.5 [7] X.L.
London Science Publishing Limited (2010), p.180 [8] X.L.

Research on chemical mutagenes is breeding of Ganoderma lucidum yanling Quan1, a yisheng Liu2,b shengquan Xie3,c zhiliang Xu4,d 1.2.4 University of Science & Technology Liaoning anshan Liaoning china 3.
Materials 1.1 Experimental material 1.1.1 Ganoderma lucidum strain From biology laboratory of Liaoning Science & Technology University 1.1.2 Medium P[otatoes 20% , glucose12g, peptone4g, KH2PO41.0 g, MgSO4 0.3 g, Vitamin B1 0.006g, water 600ml. 1.2 Experimental method 1.2.1 Drawing the growth curve After preparing twenty 250ml elenmeyer flasks, 100ml liquid seed medium and 2ml inoculation were poured into every flask.
References [1].Ming-Shi Shiao Triterpenoid natural products in the fungus Ganoderma lucidum.Journal of the Chinese chemical society,1992，39:669-674
JM Antonucci and EE Toth, Extent of polymerization of dental resins by differential scanning calorimetry[J].Journal of Dental Research,1983,62: 121

Isolated net Fig.1 The basic principle diagram of the gas-particle two-phase SFF Journal Title and Volume Number (to be inserted by the publisher) 545 The key factor affecting machining effect is forming equipment of swirling flow, whose structure is designed in terms of tangential fluidic principle, and which is mainly made up of nozzle, swirling head, adjustable cushion and wire net etc.
The dimension of particle is 95mm and spherical (granularity is180 # and material is Corundum), its loading quantity about 2g, nozzle angle 106 and diameter 94 mm, Ra is examined per minute (cycling time is 30 and cycling period is 2 s), the procedure repeats 8times and particles is replaced per time.
Fig.6 The Ra-t curves of different granularities 0 0.5 1 1.5 2 0 1 2 3 4 5 6 7 8 t(min) Ra (µm) 180# 80# Fig.7 The Ra-t curves of different diameters 0 0.5 1 1.5 2 0 1 2 3 4 5 6 7 8 t(min) Ra (µm) 1mm 3mm 5mm 0 0.5 1 1.5 2 0 1 2 3 4 5 6 7 8 t(min) Ra (µm) 5º 15º 30º 0 0.5 1 1.5 2 0 1 2 3 4 5 6 7 8 t(min) Ra (µm) 4mm 3mm 2mm Journal Title and Volume Number (to be inserted by the publisher) 547 Fig.8 The photo for machining effect of cross hole structure Experiment of Part with Blind Hole Structure.
It can be used to refine, deburr, strengthen surface, rinse and remove oxide on the surface of precise hole for different sizes and different materials.
Acknowledgements This project is supported by National Natural Science Foundation (NSF) of China (59875063) and Provincial Natural Science Foundation of Shanxi(981046).

If the ω1 ,ω2,… ωn is each frequency of the every section of the boring bar respectively, then the whole system frequency of the boring bar can be described as: (16) When the whole span is broken down into n section, there are one part inside the work which frequency is annotated as ωin , and (n - 1) parts outside the work which frequency is annotated as ωout , then the formula (16) about whole system frequency of the boring bar can be described as: (17) Case calculation The material of BTA deep-hole boring bar is forging high alloy steel, where E=214×103 Mpa, G=82.9×103 Mpa, ρs=7.87×103 kg/m3 and ρf=0.865×103 kg/m3.
Acknowledgment This research is financially supported by the National Science Foundation of China under grant No. 51075126.
International Journal of Mechanical Sciences,1999,41：1301-1322 [2] Hu Zhanqi, Zhao Wu.
Chinese Journal of Mechanical Engineering, 2005, 41(1): 230~233 [3] Zhao Wu.
Key Engineering Materials, v 455, p 575-579, 2011.

Effect of Bolt Slippage on the Static Response of Lattice Structure Peng Wang1, a, Haibo Chen1, b, Weidong Huang1, Yue Lin1 and Huiwu Zhang2 1 Department of Modern Mechanics, University of Science and Technology of China, CAS Key Laboratory of Mechanical Behavior and Design of Materials , Hefei 230026, Anhui, P.R.
China 2Power Science Institute of Anhui Province, Hefei 230022, China adpwlzu@mail.ustc.edu.cn, bhbchen@ustc.edu.cn (Corresponding author) Keywords: Bolt slippage; Lattice structure; Static response; FEM model; Test comparison.
Specimens are tested using material test system 810(MTS 810) with a loading rate of 0.004mm/s up to failure.
Journal of Tongji University, 2003，31(5)：510-514.
Journal of Structural Engineering, ASCE, 1994,120(8): 2281-2287

Introduction Wood is the one of the world's four major materials (Steel; Cement; Wood; Plastic) and the one of the renewable and recycled materials, which plays an irreplaceable and increasingly important role in our national economy [1].
According to the report of “China Building Materials Daily” in 2008, municipal solid waste was produced up to about 60 million tons annually in China, including all types of wood waste up to 60 million tons.
In the production process of recycling old ship-wood, producers have to process the materials based on the size, the thickness, the degree of weathering varies of each piece of the old ship-wood.
Acknowledgements This work was financially supported by the National Natural Science Fund of China (31070577), Plan Projects of Hunan Province (2012GK3146), Postgraduates’ Science and Technology Innovation Fund of Central South Forestry University of Science and Technology (2010sx14).
Fang: Journal of Central South Forestry University of Science and Technology, Vol. 30 (2010) No.12, P.172 [5] Z.B.

This ceramic material and its composites are important for high-temperature engineering applications as structural advanced materials.
The observations from this study resulted that the formation of phases on the surface depends strongly on the niobium/carbon ratio in the raw materials.
The high-energy milling processes involve the comminution of bulk materials.
Ebadzadeh, “Formation of mullite from precursor powders: sintering, microstructure and mechanical properties”, Materials Science and Engineering A, 355 (2003) 56-61 [2] W.
Senapati, “Porcelain-Raw Materials, Processing, Phase Evolution and Mechanical Behaviour” Journal of the American Ceramic Society, 81 (1998) 3-20 [4] T.A Cruse, B.J.

Ceramics being with high wear resistance have great potentials as the nozzle materials.
Journal of the American Ceramic Society.
Journal of the European Ceramic Society.
Erosion wear of boron carbide nozzles by abrasive air-jets, Material Science Engineering A.
Journal of the European Ceramic Society.

The Debris Flow Disaster Faster-than-early Forecast System（DFS）with Multi-Sensors Integrated Wireless Sensor Networks Rong-Zhao13, a, Caihong- Li1, b, Yunjian-Tan1, Jun-Shi1, Fuqiang- Mu2, Xiaofan-Chen1, Lian -Li1 1School of Information Science & Engineering, Lanzhou University, Lanzhou, 730000, China 2Gansu Wanwei Company,Lanzhou, 730000, China 3Department of Military Logistics, Military Transportation University, Tianjin, 300161, China aemail: sdadanuoer@163.com,bemail:licaihong@lzu.edu.cn Keywords: Debris flow, Faster-than-early Forecast System, wireless sensors networks, Multi-Sensor Abstract.
Debris flows carrying saturated solid materials in water flowing downslope often cause severe damage to the lives and properties in their path.
ACKNOWLEDGMENT The authors acknowledge supports from by the Natural Science Foundation of P.
R. of China (90912003, 61073193), the Key science and technology Foundation of Gansu Province (1102FKDA010), Natural Science Foundation of Gansu Province (1107RJZA188), the Fundamental Research Funds for the Central Universities (lzujbky-2012-47, lzujbky-2012-48).
[8] Huang, Chinje., Ye, Chihhui., Yin Hsiaoyuan., and Wang, Jinde (2005): “Study of debris flow for integration with a geophone,” Chinese Water and Landscape Conservation Journal, Vol. 36 (1), pp.39-53

The transition point depends not only on the properties of materials but also on the particle size of raw powders.
It indicated that the apparent brittle to ductile transition occurred in the materials.
Science Reviews, Japan, 2000, p. 541
Ohmi et al: Journal of Nuclear Materials, Vol. 283-287 (2000), p. 1023
Watanabe: Materials Transactions JIM Vol. 40 (1999), p. 508