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Materials and Methods The CaO, MgO and WO3 reagents were selected.
Fig. 4 - Average linear shrinkage of the calcined and sintered materials.
Aldus Science and Technology Series.
Tyagi: Materials Chemistry and Physics Vol. 98 (2006), p. 486
Tyagi: Journal of Alloys and Compounds Vol. 390 (2005), p. 100

The force characteristics of three-hinged arch with non-uniform loads and its reasonable arch axis calculation Yongping Wu1, a,Rui Yan2,b,Panshi Xie3,c 1School of Energy and Resource,Xi’an University of Science and Technology,Xi’an 710054,China 2School of Energy and Resource,Xi’an University of Science and Technology,Xi’an 710054,China 3School of Energy and Resource,Xi’an University of Science and Technology,Xi’an 710054,China aemail:wuyp@xust.edu.cn bemail:310096572@qq.com cemail:xieps@xust.edu.cn Keywords:structural mechanics;three-hinged arch;non-uniform loads;MATLAB;reasonable arch axis Abstract: In order to solve the stability and reasonable design technology of arched tunnel in tunnel engineering.Based on the general characteristics of the arch tunnel,build a three-hinged arch structure model with non-uniform loads.Through mechanical analysis,obtained the calculation formula of supporting and internal forces of flat and inclined arch with non-uniform loads,and as a
(25) For the theory of beams in material mechanics,We can get a second-order differential equation26
Analysis of surrounding rock macro stress arch-shell of long wall face in steeply dipping seam mining[J].Journal of China Coal Society, 2012,37(4):559―564.
Journal of China Coal Society,2011,30(S1):70―73.( in Chinese) [9] Qing Chen,Jincai Zhu,Dong liang Li.
Modern Tunnelling Technology, 2011,48(5):58―62.( in Chinese) [10] Tong Li,Yinshan Li,Luwu He.Static analysis of three-hinged arch by Maple[J].Research and exploration in laboratory, 2011,30(11):48―51.( in Chinese) [11] Hualiang Liu,Zhiping Wei,Xide Ding.Application of Mathcad in calculating three-hinge arch's internal force[J].Journal of Nan hua University (Science and Technology), 2006,20(1):18―22.( in Chinese)

This paper considers the application of Super Absorbent Polymer(SAP) in expansive concrete with different cementitious materials.
Test materials Super Absorbent Polymer.
Cementitious Materials ,Admixture P·O42.5 cement(C), S95 Ground blast furnace slag powder(KF), fly ash(FA) which grade isⅡ.
Journal of South China University of Technology (Natural Science Edition).
New Building Materials. 7-11 (2008).

Kinetic Study of the Esterification Reaction of Hydroxymethyl(phenyl)phosphinic Acid and Ethylene Glycol Keguang Cao1, a, Chunliang Xia2,b and Zhongwei Wang*2,c 1Chengde Petroleum College, Chengde, China 2 College of Material Science and Technology, Shandong University of Science and Technology, Qingdao, China akgcao@sina.com, bxiachunliang@163.com, cwangzhongwei@fusilinchem.com Keywords: Hydroxymethyl(phenyl)phosphinic acid, Esterification reaction, kinetics.
Materials and Methods Materials.
HMPPA (99.95%) was supplied by Qingdao Fusilin Chemcal Science & Technology Co., LTD.
All materials were used without purification.
Journal of Shandong University of Technology (Sci & Tech), Vol. 20 (2006), p. 77 [6] C.F.

Science & Technology Park.
The types of materials used are metals and composite materials, and must have high mechanical strength, low thermal expansion coefficient, adhesion compatibility with the epoxy formulation used and easily cutable and work on site.
Materials and Structures/Mat&iaux et Construction, 20 (1987) 165-170
Construction and Building Materials 25 (2011) 2312–2317 [15] Broughton, J.G. & Hutchinson, A.R.
Construction and Building Materials 15 (2001) 17-25 [16] Duarte, A.; Negrao, J.; Cruz, H.

Polymer matrix composites are widely used as bearing materials for heavy load applications.
Still fundamental knowledge about the wear mechanisms of these materials and the evolution in time of these mechanisms is lacking.
Due to differences between the static and kinetic coefficient of friction, restarting a tribological test means changing the original parameters of the material, resulting in possible differences in wear behavior of the two materials.
Villard, Composites Science and Technology, Vol. 62 (2002), 1433-1444 [3] M.Q.
Van Hemelrijck, H.Sol, Journal of Adhesion, Vol. 82(11) (2006), pp. 1033-1060

Introduction Aerogels have tremendous importance in materials science and engineering, mainly due to their high surface area and variable porosity.
These features are important for heterogeneous catalysis, gas sensing and separation science [1-6].
Unique structural and morphological properties, including open porosity, large pore volume, and excellent temperature stability [7], render aerogels promising materials for catalytic applications [8].
Altering the chemical composition of the aerogel framework to generate catalytically selective high surface area materials is an area of current topical interest.
Mater., 1999, 11: 2837-2845 [2] Wang Lijiu, Zhao Shanyu: Journal of Wuhan University of Technolotgy-Mater.

Materials and Experimental Procedure In each simulation simplifying hypotheses were considered, as follows. 1.
Acknowledgement This research was performed in the framework of the project entitled “Research of bone substitution with materials manufactured by metal powder metallurgy techniques, acronym BONY” funded by Romanian Government in “Parteneriate” Program, contract No. 244/2014.
Van der Perre, A New Test Set-Up for Skull Fracture Characterisation, Journal of Biomechanics 40 (2007) pp. 3389–3396
[8] Arna Óskarsdóttir, Finite Element Analysis of Infant Skull Trauma using CT Images, Master of Science Thesis, Royal Institute of Technology, School of Engineering Sciences, Stockholm, Sweden, 2012
Peldschus, The Validation and Application of a Finite Element Human Head Model for Frontal Skull Fracture Analysis, Journal of the Mechanical Behavior of Biomedical Materials 33 (2014) pp. 16 – 23.

The research on microscopic failure criterion of masonry Weijun Yang 1, a，Yao Li 1, b ，Ning Jiang2, c 1Changsha University of Science and Technology, Changsha, Hunan, 410114, China； 2 Sichuan College of Education, Chengdu 611130，China； amgbyrh@163.com，byaoyao-1987@163.com，cjl0815@163.com Key word: microscopic, failure criteria, masonry, interface Abstract.
The chief aim of this paper is to set up different masonry dual failure criteria by an effective tool of composite material mechanics and verify it by test data at home and abroad.
The relation between them is found out by CUR in 1994 [3]: Fig.1 Microscopic model of masonry Fig.2 The constitutive relation of brick and mortar ， Where：,,is the elastic and shear modulus of block and mortar;is the thickness of binding surface .The elastic modulus relation of mortar, block and masonry is accord with composite material mixed equation for composite material made by mortar, block and masonry
Conclusion (1)It is put forward a suitable composite failure criterion (eq.15) for microscopic masonry according to the composite material mechanics.
Heron，1995，40（4）：313-340 (in foreign ) [7]LUO W K,Zhu X CH the study review of masonry shear strength and its new methods journal of Chongqing construction university 1995,17(4):41-49(In Chinese) [8] LIU L P,ZUO X M,TANG D X,MA J, the strength test research of irrigation core concrete block masonry under biaxial compression, journal of science and technology of Huazhong university (City science edition ),2009,26(3):18-22(In Chinese) [9]LV W R, SHI CH X, LIU G Q the static and seismic shear strength of masonry under shear and press composite, Engineering mechanics. 2008, 25(4),158-164(In Chinese) [10]SHI CH X, theory and design of masonry structure [M] Beijing, China architecture &building press, 2003,1-93 (In Chinese)

Introduction In China, swim bladder has been widely recognized and accepted as medicinal and edible raw materials for a very long time [1], but its added value doesn’t high due to simple of the consumption way, time-consuming of the cooking process, and single type of the product, almost only dry products.
Materials and methods Materials and reagents.
Determination of protein content of raw material.
Acknowledgements This work was financially supported by the the National Natural Science Foundation of China (31060218), Hainan Natural Science Foundation (309006).
Lian and Z.N.Xia: Journal of Chongqing University Vol. 25 (2002), p. 53