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Recently, treating materials and components with surface modification techniques to improve surface qualities increasingly becomes an important method to improve their mechanical properties, especially fatigue properties.
Fig.6 Fatigue lives of different 1Cr11Ni2W2MoV samples (σmax = 640 MPa) The fatigue behavior of mechanical parts depends on their mechanical surface qualities and the fatigue cracks mostly originate at the surface of materials.
References [1] Universal Technology Corporation, High Cycle Fatigue (HCF) Science and Technology Program 2002 Annual Report [R], AFRL-PR-WP-TM-2004-2040, America, 2003 [2] B.N.
Technol, 202 (2008): 4875~4883 [3] Lu K, Lu J: J Mater Sci Technol, 1999, 15(3): 193~197 [4] Peyre P, Fabbro R, Merrier P, et al, Materials Science and Engineering, A210(1996): 102~113 [5] Min Ya, Yongming Xing, Fulong Dai, et al, Surf.
Technol, 168 (2003): 148~155 [6] Thibaut Chaisea, et al, Journal of Materials Processing Technology, 212(2012): 2080~2090 [7] Tabor D: Philo Mag A, 1996, 74(5): 1207~1212 [8] Inés Fermández Pariente, Mario Guagliano: Surf.

Therefore the development of new membrane materials for PEM fuel cells is nowadays an important task of both science and technology.
Organic-silicon composite materials combine the desired characteristics of polymeric materials (e.g., flexibility, ductility, and processability) and inorganic material (e.g., heat resistance, retention of mechanical properties at high temperature, and low thermal expansion) [6,7].
(eds.): Sol-gel methods for Materials Processing: Focusing on Materials for Pollution Control, Water Purification, and Soil Remediation Springer, New York (2008), 508 p
Synthesis and Properties of Hybride Materials for Ion-exchange and Complexing Membranes / Advanced Materials Research, Vol. 749 (2013), pp. 283-288 [12] Pozhidaev Yu., Vlasova N., Vasilyeva I. and Voronkov M.
M.: Fuel cell materials and components, Acta Materialia, Vol.51(2003), pp.5981-6000 [16] Voronkov M.

Materials Science and Engineering A290 (2000) p. 128–138 [2] R.
Progress in Materials Science 51 (2006) p.881–981
Materials Science and Engineering A 462 (2007), p. 3–11 [4] S.
Materials Science and Engineering A 410–411 (2005), p. 480–484 [8] N.
Materials Science and Engineering A 477 (2008), p. 366–371 [9] M.

Materials and Methods Microorganism and culture conditions.
Due to the effects of extrusion and expansion produced by invasion of the mycelia, the degradation of cellulose and lignin in the materials of the medium accelerated, which could promote effective ingredients releasing from interior of plant tissues.
Vol. 23 (2004), p. 285 [8] Wu C F and Lin Y Q: Journal of Fujian Agriculture and Forestry University (Natural Science Edition) .
Vol. 3 (2010), p. 513 [12] Fu B, Liao X Y, Ding L L and Ren H Q: China Environmental Science.
Vol. 1 (2009), p. 93 [13] Cai B X, Chen A P, Lin J K and Zhou F F: Journal of Ningde Normal University (Natural Science).

Experimental Materials.
[3] Fei Chen, Zhou Cheng Wang: Materials Letters Vol. 57 (2002), p. 858–861
[6] Guifu Zuo, Yizao Wan, Lei Wang: Materials Letters Vol. 64 (2010), p. 2126–2128
[8] Hyeong Ho Jin, Chang-Hun Lee: Materials Letters Vol. 62 (2008), p. 1630–1633
Asmus: Materials Science and Engineering A Vol. 316 (2001).

Henceforth, heterogeneous catalytic technology based on iron oxide, iron-containing minerals or iron-carrying materials have gained more and more attention [7-10].
Experimental part 1.1 reagent material and equipment The reagents mainly include: hydrogen peroxide (mass fraction of 30%), Reactive Black 5 (RB5), and sodium metavanadate.
Main Material: pyrite cinder, obtained from pyrite residues in the production of sulfuric acid in chemical plant, composed mainly of iron oxide and gangue.
Acknowledgments This study was financially supported by the Natural Science Foundation of China (Grant No. 41172210), the Fundamental Research Funds for the Central Universities (No. 0400219188), and the National Key Technology R&D Program (Grants No. 2013BAC01B01) References [1] Wang K, Guo J, Yang M, Junji H and Deng, R: Journal of Hazardous Materials. 2009, 162: 1243-1249 [2] Zhang chuanjun, Li Zeqing, Cheng Wenying and Luoli: World SCI-TECH R&D, 2005, 27 (6): 64 -68 [3] Chamarro E, Marco A and Esplugas S : Water Research, 2001, 35(4): 1047-1051 [4] Yan Qishe, Sun Hongwen, Zhou Changbo and Xu Xiaoyang: Ecology and Environment, 2008, 17(1): 216-220 [5] Tao Changyuan, Ding Xiaohong, Liu Zuohua, Du Jun and Liu Renlong: Chemical Research and Application 2007, 19 (11):1177-1180 [6] Kwan W P , Voelker B M: Environmental Science & Technology , 2004 , 38 (12) : 3425 – 3431 [7] Watts R J, Udel M and Hong S: Environmental Engineering Science, 1999, 16(1): 93-103 [8] Lu Mingchun : Chemosphere
[14] Lin Tongfeng, Hu Xiaoming: Environmental protection science 2008. 34(2):57-60 [15] Lin S S, Curol M D : Environ sci.

Chinese Journal of Geotechnical Engineering, 2000, 22(6): 701 – 704.
Journal of Tongji University 2007, 35(10): 1299-1304.
Journal of Tongji University, 2002, 30(9): 1044-1050.
Simulation of mechanical behaviors of granular materials by discrete element method based on meso scale nonlinear contact law[J].
Shear-band analysis in idealized granular material.

Study on the Toughness Performance of Polypropylene Fiber and SBR Polymer Latex Modified Cement Mortar XU Fang1, a , ZHOU Mingkai1, b, SHEN Weiguo1, c, LI Beixing 1, d 1 Key Laboratory for Silicate Material Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China a xufang2001@163.com, b zhoumingkai@sina.com, cshenwg@sohu.com, d libx@126.com Key words: cement mortar; polypropylene fiber; SBR polymer latex; flexural toughness Abstract: In this paper, polypropylene fiber and SBR polymer latex are added into cement mortar to improve the toughness.
This research provides some useful references for the application of this new material. 1 Introduction Cement mortar is a typical brittle material, of which its compressive strength is far greater than the tensile strength, thus resulting in low toughness, poor impact resistance and weak deformation capacity of cement mortar [1].
The modification mechanism and the chemical composition are also analyzed by some microscopic test methods. 2 Experimental 2.1 Raw materials P.O 42.5 cement with its quality in accordance with national standards; The length of a single polypropylene XU Fang(徐方): Ph D Candidate; E-mail: xufang2001@163.com.
Tel: 13871225640 Funded by the science project from Department of Communication of Hubei Province.
Shrinkage cracking in polyolefin fiber-reinforced concrete, ACI Materials Journal, 2000, 97(4):432~437 [2] Standard of JC/T 984-2005, Polymer modified cement mortar for waterproof.

Sha: submitted to Journal of Engineering Graphics (2008)
Wang: submitted to International Journal of Robotics and Automation (2009)
Li: submitted to Journal of ShangHai JiaoTong University (2010)
Gao, volume 566 of Advanced Materials Research, Trans Tech Publications (2012)
Zhang: submitted to Journal of Computer Aided Design (2002).

Composite floor system utilizing asymmetric H-shaped steel to mitigate the problem of floor height, one of the most serious drawbacks inherent in composite steel structures boasts advantages such as increase in floor area up to 10%, economy in building materials and resources and reduction in wastes. [1] However, before it is commercialized and actually used in the field, studies on the long-span structure of composite floor system having the advantage of reduced floor height should be conducted to define its rapid deformational behavior upon a fire and find ways to secure fire-resistance performance, which was why this study was carried out.
Newman, "Fire Resistance of Slim Floor Beams", Journal of Constructional Steel Research, Vol. 33, pp.87-100(1995)
[4] Pentti Makelainen, Zhongcheng Ma, "Fire resistance of composite slim floor beams", Journal of Constructional Steel Research, Vol. 54, pp.345-363(2000)
Bailey, "The behavior of asymmetric slim floor steel beams in fire", Journal of Constructional Steel Research, Vol. 50, pp.235-257(1999)
Kim, H.J.Kim, “An Experimental Study on the Fire Resistance Capacity of Asymmetric Slimflor Beam ”, Journal of Korea Institute of Fire Science and Engineering, Vol. 24 No. 1, pp.40∼45