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It indicated that: (1)The geological environment problems are complex and diverse, and the treatment projects involve a multi-disciplinary cross which are environmental geology, ecology geology, geotechnical engineering, environmental engineering and landscape works.
Technique engineering methods can solve the above mine geological environment problems, especially the feasibility control and prevention of the dominant factors.
The site condition should be considered about the foundation, building materials, climate and plant species to meet the local requirements.
The specific measure includes risk rock sweeping, slope cutting, levelling slope surface, anchoring, draining, sight-viewing engineering and carving etc.
Design of the treatment projects are shown in Fig.2: Figure 2 Design of the treatment projects Conclusions The geological environment problems are complex and diverse, and the treatment projects involve a multi-disciplinary cross which is environmental geology, ecology geology, geotechnical engineering, environmental engineering and landscape works.

Design Method for the Off-road Vehicle’s Key Parts under Time-dependent Uncertainty Xuejie Fua and Boqiang Shib School of Mechanical Engineering University of Science and Technology Beijing, USTB, Beijing, China afufu1204@163.com, bzcl0612@yahoo.com.cn Keywords: Time-dependent; Reliability; mechanical design method; Uncertainty Abstract.
(14) By the formula (14), the key component can be designed with different materials or size.
The material for the shaft is 40Cr.
Reliability-based optimization of stochastic systems using line search, Computer methods in applied mechanics and engineering. 2009, 198, 3915–3924 [3] Yasumasa F, Fabrizio D, Roberto T.
Probabilistic Engineering Mechanics, 2010, 25, 255–270

Actinozoan-like carbon materials prepared via a solvothermal route Yuanzhu Mi1,a, Yue Luo1,b School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, P.R.China amichem@163.com, blyue1958@163.com Keywords: Actinozoan-like carbon materials; Solvothermal synthesis; Electron microscopy; Raman spectroscopy Abstract: Actinozoan-like carbon materials with high yields have been successfully synthesized via a solvothermal route in a stainless steel autoclave.
In addition, the effects of magnesium acetate and polyethylene glycol are also considered.It indicated that magnesium acetate and polyethylene glycol played a key role in the formation of actinozoan-like carbon materials.
When there was no polyethylene glycol, carbon micro-rods materials was produced using magnesium acetate and n-butyl alcohol mixture as starting materials in our previous work [20].
The formation mechanism of actinozoan-like carbon materials may be complex.
Acknowledgements We thank the Key Project of Department of Education of Hubei Province（B20091201）for financial support.

Introduction Concrete cracking is an important factor to affect its durability, which is strongly demanded by the popularity of concrete material and the significance of concrete structures in engineering.
ACI Materials Journal, No. 93, (1994), p. 443-450
The influence of the fly-ash burning-loss amount and materials mix proportion to concrete engineering property [J].
China Harbour Engineering, No.3, (2000), p. 25-27
Engineering Journal of Wuhan University (China), Vol.37, No.1, (2004), p. 77-81

The mechanical property of these materials is very complicated and different from each other.
Therefore, it is impossible to express the materials’ performance truly in the crash analysis, so the only way of solving it is to simplify the materials’ model.
In order to express the materials’ performance in the analysis to the largest extent, all the commercial crash simulation software has developed relevant materials’ model to meet the engineering requirement.
On the basis of these wave data mentioned above, engineering stress-strain curve of the sample material can be achieved.
Salisbury et al: International Journal of Impact Engineering 32 (2005) , p. 541

Research on the Feasibility of Shape-stabilized Phase-change Materials at Lower Temperature Used in the Phase Change Wall Quanying Yan a, Ran Huob and Lili Jinc Beijing Municipality Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, 100044,China a yanquanying@bucea.edu.cn, b huoran5202006@163.com, cjinlili19880626@163.com Keywords: paraffin; high density polyethylene; shape-stabilized phase-change material; phase-change wall; energy saving Abstract.
The results may provide the basis for the application in the practical engineering in the future.
Experimental method Experimental equipments and materials.
Proceedings of the 28th intersociety energy conversion engineering conference.
Solar Energy Materials and Solar Cells, 2000,64(1):37~44.

Fabrication and Characterization of Nano-Hydroxyapatite / Poly (D, L-lactide) Composite Porous Scaffolds for Human Cartilage Tissue Engineering L.Cheng1 , S.M.
These results suggest that the PDLLA/nano-HA porous scaffolds are promising candidates for cartilage tissue engineering application.
Introduction Hydroxyapaite (HA) has been used as tissue engineering material for cell culture and tissue repair due to its excellent biocompatibility and osteoconductivity [1].
And there is much increase in protein adsorption and osteoblast adhesion on the nano-ceramic materials compared to micro-ceramic materials.
Materials and Methods Materials.

Study on the liquefaction technology of corn stalk-biomass materials Li Xueqin1,a, Li Xiangyu1,b, Qi Wei2,c, Shi Junyou1,d, Zhang Jiping1,e and Pang Jiuyin1,f 1Wood Material Science and Engineering Key Laboratory of Jilin Province, Beihua University, Jilin 132013, China 2 Guangzhou Institute of Energy Conversion, CAS; CAS Key Laboratory of Renewable Energy, Guangzhou alxq88889@126.com, blixyv@126.com, cqiwei@163.com, dshijunyou@163.com, ezhangjiping777@163.com, fpangjiuyin@163.com Key words: Biomass, Material, Corn straw, liquefied Abstract.
Many different kinds of biomass materials are widely distributed rich [3] and have good biodegradability [4], also compared with synthetic polymer materials.
Like synthetic polymer, biomass materials can be made into plastics, engineering fibers, fiber, functional materials, coatings, adhesives, composites, etc. [8], those products are applied in the areas of production and living.
Polymer Engineering, 2000, 20(5):365
[19] Li Zhaojian.Journal of applied foundation and engineering science, 2006, 14(1):40

Risk assessment of city village reconstruction demolition engineering in Urban sustainable development Liu Xiaojuna, Lan Dexing b XI’AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY, Xi’an , 710055, China axjun_liu@163.com, btianfei.lan@163.com Keywords: Urban sustainable development; City village reconstruction; risk assessment of demolition and response; fuzzy comprehensive evaluation; system-level analysis Abstract.
This paper take Xi’an city village reconstruction demolition engineering projects as the main object of study, use the method of fuzzy comprehensive evaluation combined with system-level analysis in demolition of city village reconstruction project for quantitative risk assessment, identify the key risk factors, and measures proposed for the development enterprises to reduce project risks and promote the sustainable development of the city.
Therefore, evaluate the risk in city village reconstruction demolition engineering project and take effective measures to deal with the risk is necessary to the entire cycle risk control.
Conclusions City village reconstruction demolition engineering project risk response measures
Engineering economics [M].

Xue Advanced Biomaterials and Tissue engineering Center, Huazhong University of Science and Technology, Wuhan 430074, China.
Materials and methods Preparation of porous scaffolds.
Darvell, et al. (2006)Materials Letters 60:3533-3536
Kobayashi, et al. (2004)Materials Science and Engineering C 24: 723-28
Gao, W.L Cao, et al. (2005)J of Biomedical Materials Research Part A 75: 275-82