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Conversing coal into clean higher burnout value of fuel, chemicals and carbon materials, is a reasonable approach to realize coal’s extensive use.
Solvent extraction remnants of coal, as a clean natural porous material, with the superior performance of adsorption, has good application prospects in fields of catalyst carrier for reaction, decoloring agents for non-ferrous material, adsorbent for metal ions and impurities[3], and so on.
Acknowledgements This work was financially supported by the Nature Science Foundation of China(40772094), National High Technology Research and Development Program of China(863)(2007AA06Z221), Natural Science Research Project of Henan Province( 2010A530002), the Opening Project of Henan Key Laboratory of Coal Mine Methane and Fire Prevention(HKLGF200902).
Journal of Taiyuan University of Technology, 2001,32 (6): 555～558(in Chinese)
Journal of Zhejiang University of Technology,2008,36(5): 558～561(in Chinese)

The nominal crushing compression is determined by the specific parameters for each specimen, where is the yield strength of the steel material and is the compressive strength of concrete.
The Material Models.
Han: Journal of Harbin University of C.E. & Architecture.Vol.33, 2000 (6), pp.23, in Chinese
Lu: Journal of Earthquake Engineering and Engineering Vibration, vol. 01, 1999, pp. 40-41, in Chinese
Science Press, Beijing, 2004, in Chinese

Introduction Titanium dioxide (TiO2) is a widely studied material for its favorable physical, chemical and opt electrical properties and high stability.
Acknowledgment This work was supported by Guangdong Province Natural Science Foundation of China (8151063101000030).
Chinese Journal of Medical Physics., Vol.24(2007),p.205
[10] Feng Xuyang, Jia Guoliang; Zhang Rongqing, et al.Journal of The Fourth Military Medical University., Vol. 22(2001),p.1989
[11] Qinghang He,Zhenxi Zhang, Jianwen Xiong,et al., Optical Materials,Vol.31 (2008),P.380

Secondly, some new materials such as engineering plastics and ceramics are proposed to be applied in water hydraulic valves referring to certain researches.
The specific materials display fine abrasive resistance and self-lubricating performance [4].
The authors also acknowledge the project supported by National Natural Science Foundation of China (50805011).
Chinese Journal of Mechanical Engineering (Supplement), Vol. 38 (2002), pp. 96-100 (in Chinese)
JSME International Journal Series B, Vol. 41 (1998) No.2, pp. 270-277

MATERIALS AND METHODS MATERIALS PEG20000(SIGMA); Adipic acid dihydrazide, ADH(SIGMA); Poly diglycidyl ether, PDE(SIGMA); 1,4-Butanediol diglycidyl ether, BDDE(Alfa Aesar); Hyaluronidase (SIGMA); Medical level sodium hyaluronate dry powder(09120810)(Shandong FuRuiDa biological chemical Co., LTD); Carbazole(Chinese medicine group Shanghai chemical reagent company); The standard glucuronic acid(Shanghai biological technology Co., LTD); Folin-Ciocalteu's phenol(Shanghai Ruji biological technology development Co., LTD); NaOH; HCl; Na2HPO4; NaH2PO4; Anhydrous alcohol; phenol; FA1204B electronic balance (Shanghai precision &scientific instrument Co., LTD); 85-type 1 constant temperature and heating magnetic blender (changzhou guohua instrument plant); 723 N uv-vis spectrophotometer; HH-4 display constant temperature water-bath pot; TGL-16 C high-speed centrifuge; LDZX-50 a KBS vertical pressure steam sterilization pot; Mooney viscometer having rotor syringe; Ubbelohde viscometer.
Acknowledgements The research work was funded by the Commission of Science and Technology of Henan Province (CSTHP), the Program for Tackling Key Problems, programs No.112102310326 and the Commission of Education of Henan Province (CEHP), the Science Foundation Program, programs No. 2011A180007; Henan University of Technology, special program of introducing persons of ability No.2007BS023.
Chinese Journal of Biochemical Pharmaceutics, 2008, 29 (4) : 262-265.
Journal of Clinical Rehabilitative Tissue Engineering Research 2008 ,April 1,No.14

Materials and methods Study area and sample collection. 22 road dust samples and 24 surface soil samples (0-10 cm depth) were collected from 3 functional areas (a total of six locations) in Shanghai (Fig.1) in October 2010.
An Industrial Area (IA) consisting of a chemical industrial complex, a waste-to-energy plant, and a construction materials market.
The highest concentration of deca-BDE was found in the surface dust from D5 (Changnan construction materials market), primarily because deca-BDE is a major commercial brominated flame retardant that is commonly added to construction materials.
Journal of Exposure Science and Environmental Epidemiology, Vol.18 (2008), p. 2-19 [7] B., Fangstrom, A., Strid, P., Grandjean,P., Weihe, A., Bergman: A retrospective study of PBDEs and PCBs in human milk from the Faroe Islands.
Journal of Hazardous Materials, Vol. 192 (2001), p. 374-380 [14] J., Ma,K., Kannan, J.

Therefore, it is necessary to determine how to improve this process for the purpose of dealing with difficult workpieces and materials and broaden the possibilities of carbon dioxide blasting.
Due to the low hardness of carbon dioxide snow, it is quite suitable for treating sensitive surfaces without damaging the material [1].
The immediate volume increase by the factor 600 contributes to the material removal when the material begins to sublime.
Wang, Agglomeration Processes and Mechanisms of CO2 Snow Inside a Tube, in Aerosol Science and Technology 48, 2, 2014, pp. 228-237
Matsusaka, Size measurement of dry ice particles produced from liquid carbon dioxide, in: Journal of Aerosol Science 48, pp. 1–9, 2012

Mechanics Analysis of semi-rigid subgrade pavement structure Liya Su Architecture and Civil Engineering School, Inner Mongolia University of Science and technology, Baotou, 014010, China suliya1@.imust.cn Keyword: Asphalt Pavement, Semi-rigid foundation, modulus of elasticity, reasonable thickness Abstract.
Introduction The semi-rigid base asphalt pavement is the main road structure form in China[1], the many advantages of the semi-rigid base material for thinning, and reduced the construction cost to provide the reliable guarantee for asphalt layer, but with the increase of traffic volume and vehicle load, the semi-rigid base itself defects and overloading problems caused the early damage,which reduce the service life and service quality of Pavement in a large extent.
With the elastic modulus of semi-rigid base materials increased, road deflection value decreases as shown in Fig.2. when elastic modulus of base layer reaches a certain value, the road deflection may not decrease.
When select different elastic modulus and thickness of semi-rigid material, analysis and checking calculation of the mechanical response of various design parameters on pavement under the traffic load (stress and displacement component).Through calculation and analysis get the following conclusions: Elastic modulus of semi-rigid base materials between1500MPa and 3000MPa, and thickness control under 35cm is more reasonable.
Stress analysis on the composite pavement of elastic foundation[J],Journal of chang ’an university,2008,28,25-29

Introduction In the process of creep feed grinding, large grinding depth is always used to obtain high material remove rate [1,2].
However, the high material remove rate brings high heat generated rate in the grinding contact zone which causes surface burning of the work piece [3].
As creep feed grinding difficult to machine materials such as titanium alloy and superalloy, the surface burning is more serious because its low heat conductivity, high strength and toughness [4].
So, how to solve the problem in grinding burn for difficult to machine materials is a focus of grinding research field.
Journal of Manufacturing Science and Engineering, 2001, 123(2):185-190

Experimental design Test materials The cement is P O32.5 R conch brand ordinary Portland; sand is ordinary; mixing water is tap water; natural coarse aggregate is continuous grading crushed stone, and the maximum size is 20 mm.
Table.1 　 Regeneration concrete proportions Specimen number water cement ratio sand ratio /% Various materials consumption（kg/m3） cement tap water Fine aggregate（sand） natural coarse aggregate Recycled coarse aggregate RAC-0 0.41 32 524 215 532 1129 0 RAC-1 0.41 32 524 215 532 1016 113 RAC-2 0.41 32 524 215 532 903 226 RAC-3 0.41 32 524 215 532 790 339 RAC-4 0.41 32 524 215 532 677 452 RAC-5 0.41 32 524 215 532 564 565 RAC-6 0.41 32 524 215 532 452 667 RAC-7 0.41 32 524 215 532 339 790 RAC-8 0.41 32 524 215 532 226 903 RAC-9 0.41 32 524 215 532 113 1016 RAC-10 0.41 32 524 215 532 0 1129 Note：Each group has three specimens under the same condition production, maintenance and test.
Table 2 Recycled concrete uniaxial compression test Specimen Numbers Aggregate replace rate / % Axis compressive strength fcp / Mpa A third of the axis compressive strength load Fa / N RAC-0 0 46.67 350056.67 RAC-1 10 44.27 332010.00 RAC-2 20 50.57 379253.33 RAC-3 30 46.67 350000.00 RAC-4 40 46.71 350315.00 RAC-5 50 46.15 346106.67 RAC-6 60 43.60 327033.33 RAC-7 70 49.76 373205.00 RAC-8 80 46.03 345260.00 RAC-9 90 46.86 351460.00 RAC-10 100 50.67 379996.67 Elastic modulus Elastic modulus of concrete is the main index of material deformation properties, which is one of the fundamental parameters in concrete structure analysis and calculation.
Acknowledgements This work was financially supported by the Key Project of Experimental Center of Guangxi Science and Technology (LGZX201102).
References [1] Li Xunping: Journal of Building Materials, Vol. 10(5) (2007), p. 598−603 [2] Guo Zhenhai and Shi Xundong: Reinforced Concrete Theory and Analyse [M], 2003 [3] Dhir R.K.