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Damage analysis of freeze-thaw processes in hydraulic structure concrete Gong Yaqi1, a, Cui Jianghua1,b, Su Haidong1,c, Shan Liang1,d 1 Department of Material and Structure, Changjiang River Scientific Research Institute, Wuhan, P.R.
The deterioration of concrete material caused by freeze-thaw cycles and temperature stress affect the safety of structure seriously.
Valenza, in: Mechanisms of Frost Damage, Materials Science of Concrete VII, edtied by F.
Skalny/American Ceramic Society (2005) [6] Mingrong Mei, Xiaomin Yu, Shanshan Wang, Qingwen Ren: Journal of Hydroelectric Engineering Vol. 29 (2010), p. 102-105 (in Chinese) [7] Linying Zhang: Water Resources Development and Management Vol. 2 (2010), p. 58-60 (in Chinese)

In this paper, the sand soil was assumed as a continuum non-linear elastic-plastic material with isotropic hardening and non associated flow.
Therefore, the Mohr-Coulomb material model was used in the following numerical simulations.
Secondly, plastic yield behavior is found for the soil, which is called material nonlinearity.
And the deformed results of model 3 are similar with [1], except in the area near the spudcan skirt because of much hardening material parameters
Raper: Journal of Terramechanics, 2009, Vol. 46(5)(2009), p. 229.

Microstructure Characterization of Deep-drawn DP780-grade Dual Phase Steel Ádám Filep1,a, Valéria Mertinger1,b 1Institute of Materials Sciences, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary aadam9032@gmail.com ,bfemvali@uni-miskolc.hu Keywords: dual phase steel, deep drawing, HSLA Abstract.
Introduction Dual phase steel has become a very important material especially in the automotive industry due to its good formability and high strength.
For calibration ASMW Nr 103, Nr 177, Nr 159, Nr 174, Nr 109 certified material samples were employed.
Kolahgara, The effect of intercritical heat treatment temperature on the tensile properties and work hardening behavior of ferrite–martensite dual phase steel sheets, Materials Science and Engineering A 518 (2009) 1–6 [3] M.Calcagnotto, D.Ponge, E.Demir, D.Raabe, Orientation gradients and geometrically necessary dislocations in ultrafine gradient dual-phase steel studied ba 2D an 3D EBSD, Material Science and Engineering A 527 (2010) 2738-2746 [4] M.Calcagnotto, Y.Adachi, D.Ponge, D.
Raabe, Deformation and fracture mechnisms in fine-and ultrafine- grained ferrite/martensite dual-phase steel and the effect of aging, Acta Materiala 59 (2011) 658-670 [5] J.Adamczyk, A.Grajcar, Heat treatment and mechanical properties of low- carbon steel with dual-phase microstructure, Journal of Achievements in Materials and Manufacturing Engineering, Vol. 22, Issue1 May 2007

Introduction ZrO2 micro beads are widely used in many areas such as abrasive media for chemical raw materials, polishing media for machine parts, reinforcing agents for plastics and so on.
Experimental Materials and process.
Huang: A new method to measure the roundness of ceramic beads, Rare metal materials and engineering 34 (2005) 81
Song, et al.: Small size ceramic TZP abrasive media beads [Z], National science and technology achievements.
Zhang, et al.: Total gelation process for the preparation of UO2 fuel kernels and its progress, Journal of Tsinghua University (Sci & Tech) 37 (5) (1997) 61 (In Chinese) [6] Z.C.

Analysis of P-M damage accumulation in zirconium dioxide; testing through gradually increasing load method Mateusz Wirwicki1, a, Tomasz Topoliński1, b 1 University of Technology and Life Sciences, al.
Treatment method is another factor which affects the material strength [3,4].
The material becomes snow white and its strength parameters increase rapidly.
References [1] Guazzato M, Albakry M, Ringer SP, Swain MV Strength, fracture toughness and microstructure of a selection of all-ceramic materials.
[6] Wirwicki M., Topoliński T.: Zirconium dioxide as a biomaterial; the icrostructure, Journal of Polish Cimac, Vol 7, No 3: 369 – 372 [7] Scherrer S., Cattani-Lorente M., Vittecoq E., Mestral F., Griggs J., Wiskott A.: Fatigue behaviour in water of Y-TZP zirconia ceramics after abrasion with 30 μm silica-coated alumina particles; Dental materials 2011 Vol. 27, pp 28-42 [8] Studart A., Filser F., Kocher P., Lüthy H., Gauckler J.: Cyclic fatigue in water of veneer-framework composites for all-ceramic dental bridges; Dental materials 2007 Vol. 23, pp 177-185 [9] Studart A., Filser F., Kocher P., Gauckler J.: Fatigue of zirconia under cyclic loading water and its implications for the design of dental bridges; Dental materials 2007 Vol. 23, pp 106-114 [10] Studart A., Filser F., Kocher P., Gauckler J.: In vitro lifetime of dental ceramics under cyclic loading in water; Biomaterials 2007, No 28, pp 2695-2705

Research on the Long-Lasting and Remelting Properties of Nd Modification Effect on Cast Al-Mg2Si Metal Matrix Composite Yi Si1,a and Kevluzov D.S.2 1Department of Applied Chemistry, Liaoning Petrochemical Vocational and Technology College, Jinzhou, China 2Department of Materials Science, Urgench State University, Urgench City, Uzbekistan ayisi67218917@126.com Keywords: Nd modification, Al-Mg2Si, long-lasting and remelting properties.
The long-term effect of Nd on the modification of composite materials was studied, and the melt was respectively kept warm for 10min, 60min and 300min.
The remelting effect of Nd on the modification of materials was studied.
After the materials were melted, they were poured into the preheated metal mould again.
Journal of Alloys and Compounds, 2008, 453(1-2): 320–324

Analysis of the Additional Twists on the Fiber Band in Compact Field of Compact Spinning Jun Wang 1,2,a, Hanguang Liu 2,b, Jianping Yang 2,c, Guangwei Chen 2,d, Ting Fu 2,e 1The Key Lab of Textile Science and Technology, Ministry of Education, Donghua University; Shanghai, P.R.China 2College of Textiles, Donghua University, Shanghai, P.R.China ajunwang@dhu.edu.cn,bliuhanguang@mail.dhu.edu.cn,cjpyang@dhu.edu.cn, dchenguangwei@mail.dhu.edu.cn, eft@dhu.edu.cn Keywords: compact spinning; additional twists; compact field; motion analysis.
Moreover, compact technology offers better raw material and reduces the production cost while maintaining yarn quality.
The form of the groove changes according to yarn count and raw material.
Experimental conditions used in the tests are as follows: (1) Material: pure cotton roving with 4.61 g/10 m
Yang: Journal of Donghua University (English ed.), Vol. 23(2006), p. 144 [2] F.

Study of The Inorganic Ion Exchanger Li3Mn0.25Ti0.5O3 Jinhe Jiang MicroScale Science Institute , Department of Chemistry and Chemical Engineering ,Weifang University, Weifang, 261061,China Corresponding author.
The appearance of ion memory inorganic materials (ion sieve) became possible direct extracting lithium from the salt water resources[1-2].
Synthesis and characterization of spinel type high-power cathode material LiMxMn2- xO4( M= Ni, Co, C r) [ J] .
Journal of Physics and Chemistry of Solids , 2007, 68: 780-784.

The formula of the adsorption capacity of Cu2+ is as follow: q=(C0-C)V/m=y/m (2) y—adsorption material (mg); m—the quality of absorbent (g); V—the volume of water sample (L); C0—the concentration of the adsorption material (mg/l); C—the balance concentration of adsorption(mg/l); q—adsorption capacity(mg/g) When trass ceramisite as adsorbent, isothermal adsorption equation is described as(Fig. 6): y=0.5107x-0.7649 (3) For Freundlich equation: y/m=0.172C0.5107 (4) When ceramisite coated by alumina as adsorbent, isothermal adsorption equation is written as(Fig.7): y=0.5613x-0.5771
(5) For Freundlich equation: y/m=0.265C0.5613 (6) When ceramisite coated by iron oxide as adsorbent, isothermal adsorption equation is depicted(see Fig. 8): y=0.5279x-0.7411 (7) For Freundlich equation: y/m=0.182C0.5279 (8) y—the total amount of the absorbent adsorption material (mg); m—the amount of the absorbent (g); C—the balanced concentration of adsorption (mg/l) Three adsorption isotherms all are Freundlich type and also a single layer absorption.
Adsorption Science and Technology, Vol.20(2002),p.33
Research Journal of the Water Pollution Control Federation Vol. 61, No.9(1989), p.1523

Dynamic analysis of large dams in frequency-domain based on Fourier SEM Ping Tan1, a, Nansheng Li 2,b 1 School of Communication and Electronic, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013 2 Dept. of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, People's Republic of China atanping1226@126.com, blinansheng@tongji.edu.cn Keywords: Spectral Element Method(SEM); Fourier series; Spectral matrix formulation; Dynamic analysis; Frequency domain.
The dam mainly depends on the compressive strength of materials and dam gravity to ensure the safety of large dams.
The parameters involved in the process of computing can be valued according to the following conditions：The material parameters of concrete dam is that elastic modulus E=27GPa，Poisson ratio and density .
International Journal of Solids and Structures.38, 5679–5702(2001).