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Availability Research on K-out-of-N: G Systems with Repair Time Omission Jia Zhiyua, Kang Ruib, Wang Lichaoc and Wang Naichaod Institute of reliability engineering, Beihang University, Beijing 100191, China a jiazhiyu@dse.buaa.edu.cn,b kangrui@263.net.cn, cuglyme@yahoo.cn,d tian_jia_zhuang@sina.com Keywords: Availability, K-out-of-N systems, Markov repairable system, Repairable model, Repair time omission Abstract.
The new model can give theoretical foundation for availability assessment of the material and provide decision support for the design, deployment and operational concept of the materiel.
The results obtained in the paper may be widely used in management science and other engineering practice, which can provide more directive significance.
Journal of systems engineering (2007)
Reliability Engineering & System safety (2009)

Material and Methods Apple Samples. 512 ‘Fuji’ apples were used in the experiment.
Acknowledgment This study is supported by The 11th Five-Year Plan Key Program for Science and Technology Development of China (Project No.: 2006BAK02A24).
We thank College of Food Science and Engineering of Northwest Agricultural and Forestry University for providing experiment instruments.
Pereira, “Non-destructive measurement of acidity, soluble solids and firmness of Satsuma mandarin using Vis / NIR-spectroscopy technique,” Journal of Food Engineering, vol. 77, (2006), p. 313–319
D Liu, “Nondestructive measurement of internal quality in pear using genetic algorithms and FT-NIR spectroscopy,” Journal of Food Engineering, vol. 84, (2008) p. 207-213.

Kinetics comparison of alkali-reactivity tests for aggregates GONZALEZ, Luis Mayor 1a*, SANTOS SILVA, António 2b, JALALI, Said 1c 1 Department of Civil Engineering, University of Minho, Guimarães, Portugal 2 Materials Department, National Laboratory for Civil Engineering, Lisboa, Portugal a lmgonzalez@mail.telepac.pt,b ssilva@lnec.pt, c said@civil.uminho.pt *Correspondence to: lmgonzalez@mail.telepac.pt Keywords: Expansion tests, reactivity, alkali-silica reaction, aggregates.
The extension of service life allows savings in raw materials and energy, improvement of the investment economics and, in the long term, lower investment requirements.
References [1] Bektas, F., Topal, T., Goncuoglu, M.C., Turanli, L., “Evaluation of the alkali reactivity of cherts from Turkey”, Construction and Building Materials, Vol. 22, 2008, pp. 1183-90
[37] Levenspiel, O., Chemical Reaction Engineering, ed.
[40] Chak, Y.H., Chan, Y.C., “The 2004 Review on Prevention of Alkali Silica Reaction in Concrete”, GEO REPORT Nº. 167, (2nd Ed, 2008), Geotechnical Engineering Office, Civil Engineering and Development Department, The Government of the Hong Kong Special Administrative Region

Crack Formation and Propagation Mechanism in the Punching Process of High Tensile Strength Steel Sheet Takehiro Okano1,a*,Kota Sakumoto1,b, Kazuhiko Yamazaki2,c, ShunsukeToyoda2,d and Shinsuke Suzuki1,e 1Department of Applied Mechanics and Aerospace Engineering, Faculty of Fundamental Science and Engineering, Waseda Univ., 3-4-1 Okubo Shinjuku Tokyo, Japan 2Steel Research Laboratory, JFE Steel Corporation.,1-1 MinamiwataridachoKawasaki Kanagawa, Japan at.okano@fuji.waseda.jp,bkoota-sakumoto@ruri.waseda.jp, c k-yamazaki@jfe-steel.co.jp, ds-toyoda@jfe-steel.co.jp, esuzuki-s@waseda.jp Keywords: High Tensile Steel Sheet, Punching, Center Segregation, Crack, Ti Precipitate.
Tensile test for measurement of material properties Tensile tests were conducted following JIS Z 2241 [4].
Enomoto (Kagami Memorial Research Institute for Materials Science and Technology, Waseda Univ.)for the technical support of EPMA analyses,EBSD analyses and TEM/EDS analyses.
Suzuki, Improvement in punching properties of high tensile strength steel sheet by heat-treatments for reduction of center segregation, Key Eng.
[4] Japanese industrial standards committee, JIS Z 2241 Metallic materials-Tensile testing-Method of test at room temperature, Japanese standards association, Tokyo, 2008

Duan 1, c 1 Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian,116024, PR China 2 School of Mechanical Engineering and Automation, North University of China, Taiyuan, 030051, PR China a pangjunzhong@163.com, b mjwang@dlut.edu.cn, c dbf71@163.com Keywords: white layer; surface roughness; model; high speed milling; hardened steel Abstract: Using solid carbide straight end mills with TiAlN coating, A P20 steel at 41HRC is machined in the cutting speed range of 301 to 754m/min.
The workpiece surface can exhibit a vastly different structure compared to that of the bulk of the metal material.
Materials Science & Engineering A, 390(1-2) (2005), 88-97 [5] Bosheh S.S, Mativenga P.
Journal of Materials Processing Technology, 157-158(12) (2004), 485-490 [8] Dewes R.
Journal of Materials Processing Technology, 69(1-3) (1997), 1-17 Fig.10 Cutting speed V and feed rate fz vs.

., Ltd, Guangzhou, China, 510385 2State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China, 510640 akonghh@gdzygy.com, bforest_c@163.com, c15502985670@163.com, dwujunzhang0116@163.com, echencl@gdzygy.com, f,*yangfei@scut.edu.cn Keywords: copper paper; thermal conductive rod; burning temperature; conventional components; harmful components Abstract.
In this study, the bleached wood pulp and Cu micro powder were used as raw materials, a thermally conductive cellulose/copper composite rod (TCCR) was prepared via a traditional paper-making method with lower manufacturing costs [17].
Experimental Materials.
Yu: Materials science and engineering of powder metallurgy Vol. 21 (2016) p. 878 [17] H.H.
Lu: Jouranl of Materials Chemistry A Vol. 3 (2015) p. 5294 [19] H.Z.

Min-max Partition Method of Product ModularizationBased on Fuzzy Clustering Yan-hui CHEN1,2,a, De-jian ZHOU2,b 1School of Mechano-Electronic Engineering,Xidian University,Xi’an,Shanxi,710071,China 2Department of Mechanical Engineering, Guangxi University of Technology,Liuzhou,Guangxi,545006,China agxut_jx@163.com, bggzdj@gxut.edu.cn Keywords: Fuzzy Clustering, module partition , min-max partition, working unit, modularity.
As the key technology of the product modularization design, the module partition is always the hot issue of the engineering field research.
Table 1 Relevancy Definition of the Spare Parts of the Products Relevancy Geometric Correlation Functional Correlation Physics Correlation 0.7-0.9 No partitioned connection Joint completion, indispensable Energy flow occurs 0.4-0.6 Partitioned stationary connection Strong miscellaneous function relation Information flow occurs 0.1-0.3 Partitioned movable connection Medium miscellaneous function relation Material flow occurs 0 No connection No function correlation or weak No relation 1.3 Product Module Partition Process Based on Fuzzy Clustering Analysis According to the foregoing definition and relevance factor analysis, basic steps of the product module partition based on the fuzzy cluster analysis can be obtained: Step 1: The incidence matrix of each relevance characteristic of the product is established to carry out initial partition for the products based on the fuzzy clustering method; Step 2: Its minimum and maximum partition are calculated according to initial
[5] Tao Tang, Zhifeng Liu, Guangfu Liu, et al: CHINESE JOURNAL OF MECHANICAL ENGINEERING, Vol. 39(2003), p.149(In Chinese)
[7] Zhuoya Qi, Jianzheng Wang, Xinmin Han: CHINESE JOURNAL OF M ECHANICAL ENGINEERING, Vol. 43(2007), p.87(In Chinese)

Study on the Method of the Damage Identification For Frame Structure Yang Youfa1, 2,a, and Li Shuai2,b , and Ling Ling2,c 1 Key Lab of Education Ministry for Construction and New Technology of Mountain Cities, Chongqing University, Chongqing 400045,China 2 College of Civil Engineering, Chongqing University, Chongqing 400045,China ayfyang6296@163.com, bcqlishuai73@163.com, cyfyang@cqu.edu.cn Keywords: frame structure; damage identification; first order iterative algorithm; mixed iterative algorithm; damage identification using static and dynamic data.
Introduction Many factors may badly affect the structural safety, applicability and durability in civil engineering, so damage in structural members should be found and restored in time to guarantee the secure of structure.
In order to increase the identification precision of the result in the practical engineering application, the analytic solutions of first order sensitivity equations must be modified by self iteration.
The density of the structural material is, and the modulus of elasticity is.
Acknowledgements This work was financially supported by Chongqing municipal Commission of urban-rural development,Grant NO. (2011-2-86, 2011-2-80) References [1] ZHAO Zhonghua: Research on structural damage identification based on improved sensitivity method for modal parameters (Chongqing University 2010) [2] ZHANG Dewen, WEI Fuxuan: Model modification and damage diagnosis (Science Press, Beijing 1999) [3] R.L.Fox and M.P.Kapoor: Rates of Change of Eigenvalues and Eigenvectors, AIAA Journal, Vol. 12(1988),p.42-53 [4] YANG Youfa, LIANG Wenguang: Improved directly analytical method for damage identification of frame structures, Earthquake engineering and engineering vibration, Vol. 30(2010) ,p. 80-86 [5] Coleman T F,Li Y: An interior trust region apporoach for nonlinear minimization subject to bounds, SIAM Journal on Optimization, Vol. 16(2006),p.418-445 [6] Coleman T F,Li Y: On the convergence of reflective Nowton methods for large-scale nonlinea minimization subject to bounds,

Bridge Disaster Prevention and Disposal Methods in Mining Area Qing-jie Wen1, a, Hui Lu2,b 1School of Mechanics and Civil Engineering, State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining& Technology, Xuzhou, Jiangsu Prov., China 2School of Management, China University of Mining& Technology, Xuzhou, Jiangsu Prov., China awenqingjiefjs@126.com, baloe525@126.com Keywords: Bridge Disaster; Surface Subsidence; Large Deformation; Disposal of Foundation Abstract.
For deformation compatibility of all box culverts and preventing disasters due to collision and inconsistent deformation, reasonable filling material should be selected [1].
The authors thank Professor Guang-yun Yu in China University of Mining& Technology for his valuable engineering information for bridges in mining area.
Physical and Mechanical Properties Evolution and Engineering Response of Disturbed Soil in Ming Subsidence Area With Large Vertical Deformation.
Priznar: Fourth Biennial Interstate Technical Group on Abandoned Underground Mines "Abandoned Underground Mine Workshop", lowa: The Iowa Department of Transportation and The Illinois Department of Transportation (2002) [4] Sung-Oong Choi: Stanford Rock Fracture Project Vol. 11 (1998), p. 23-26 [5] Qiao Zhichun, Xia Junwu, Guo Guangli, Yang Shunchen: Journal of China University of Mining & Technology Vol. 28, No. 6 (1999), p. 593-596 (In Chinese) [6] Yang Longbiao: Gold Vol. 18, No. 1 (1997), p. 30-31 [7] Olivier Deck, Marwan Al Heib: Engineering Structures Vol. 25, No. 4 (2003), p. 435-448 [8] YU Guang-yun, Xia Jun-wu, WANG Dong-quan: Journal of China University of Mining & Technology Vol. 33, No. 1 (2004), p. 59-61 (In Chinese)

Influence of Br modification on collecting property of dodecanoic acid Yimin Zhu1,a, Binbin Luo1,b, Jinyue Mi1 1Mineral Processing Engineering College of Resources and Civil Engineering Northeastern University ,Shenyang 110004,China a1271369960@qq.com , b840568129@qq.com Key words: Hematite,Reverse flotation,Collector,Activation,Mechanism Abstract.
Characteristic peaks can be used to analyze different information of the organic functional groups, so as to know the essential structure of the material.
Marabini, M Cirlachi, P Plescia, et al: Chelating reagents for flotation, Minerals Engineering, 2007, 10: 1014-1025
Minerals Engineering, 2000(13): 1361-1376
Minerals Engineering, Vol.13, No.14-15 (2000): 1495-1503.