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Finite Element Analysis of Metal Flow of Finishing Groove in Hot Continuous Rolling Bar Jialin Zhou1, a, Chenggang Pan1, b, Xiaoyong Zhang2, c 1 Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China 2 Wuhan Iron and Steel Co., Ltd.
With the development of finite element simulation technology in materials processing and forming process, which is widely used to optimize the groove design, reduce design time, and improve product quality [1-2].
Material properties of billet and rollers are shown in Table 4. 
Table 4 Material properties of billet and rollers Component Material model Density /kg/m3 elastic modulus /GPa poisson ratio yield strength /MPa tangent modulus /GPa Roller Rigid 7850 210 0.3 — — Billet Bilinear elastic-plastic 7850 132 0.3 80 78 Fig.3 FE model of the last two pass process The simulation results of biting stage The cylindrical billet front end first enters into the oval groove of horizontal roll stand 17H, then, enters round groove of vertical roll stand 18V after the deformation of 17H in the two pass 17H-18V simulated rolling process. 
Journal of Wuhan University of Science and Technology.

Experimental 2.1 Raw material and Component Specimens were made of common construction materials.
Cement was 32.5 class ordinary silicate cement produced by Lu-run Building Materials Industry Company of Shandong Province.
Acknowledgements Project supported by Natural Science Foundation of Shandong Province of China (No. 2009ZRB01879).
References [1] Yang Xi, Wu Jin, Liang Jiguang, Study on the Relationship between the Tensile strength and the Compressive strength of Recycled concrete[J], Sichuan Building Science, 2009, 35(5):190-192; [2] N ixon P.J,Recycled concrete as an aggregate for concrete-A review[J],Materials and Structures,1978,11(6):371-378; [3] B C S J，Study on recycled aggregate and recycled aggregate concrete[J],Concrete Journal, 1978, (16):18-31; [4] Xiao Jianzhuang, Li Jiabin, Lan Yang, Recent Advances and Review in Recycled Concrete Technology[J], Concrete, 2003,26(10):17-20; [5] Xie Lingjun, Zhai Ailiang etc. the mechanical properties of gradation of recycled concrete with Brick and tile aggregate[J]; Water Resources and Architectural Engineering; 2010,8(6):52-55

In recent years, the research on the safety of the mast focused on: (1) The impact of welding residual stress on the fatigue property of the mast under the cyclic load [2,3]; (2) The impact of the wind vibration on the fatigue property and reliability of the mast [4,5]; (3) The impact of the composite materials and the complex shape on the stealth of the mast [6,7].
The research above mainly adopts new technology, new material and more complex shape to improve the safety of the mast.
Advanced Materials Research. (2011)
Advanced Materials Research. (2011)
Chinese Journal of Ship Research.

The sensitive arrays depend on the material sensitivity of VOCs, while the technologies are determined by preciseness of data-collection and efficiency of data-processing.
Many achievements have been made in air sensitive materials at home and abroad [4-6], while the research of data-collection and data-processing are relatively backward.
Experimental Sensitive Array and Data Collection In the Smell-Seeing Sensor Array System, sensitive materials (metalloporphyrin and zinc phthalocyanine) show high color rendering.
Fig. 2 Acquisition images of gas sensor array (Cyclohexanone (CYC), Methyl ethyl ketone (MEK), Dichloroethane (DCE) Butyl alcohol (BA), Pyridine (Py), Aceticacid (AC), Ethylene glycol (EG), Triethylamine (TEN), Tetrahydrofuran (THF), Acetylacetonate (ACAC), Ethyl Acetate (EA), Isopropyl Alcohol (IPA), Propylene Glycol (PG), Aldehyde (AH)) The specific methods are as follows: (1) According to the paper of Professor Suslick [10], 2 x 2 sensitive arrays are made by dropping saturated solution respectively and orderly mixed with the chloroform and sensitive materials, including the copper porphyrin (CuTPP), zinc porphyrin (ZnTPP), nickel porphyrin (NiTPP), zinc phthalocyanine (ZnPC), on the quartz glass sheet.
Journal of Zhejiang University（Engineering Science), 2007, 41(4): 673-678

Ni reacting with Si from the bulk material, would cause the presence of carbon at the interface that could be detrimental to ohmic contact performance.
Porter et al "A critical review of Ohmic and Rectifying contacts for Silicon Carbide" Materials Science and Engineering, B34, 83-105, 1995
Pope et al "Comparative Surface Study on Wet and Dry Sacrificial Thermal Oxidation on SiC" Applied Surface Science, Vol 174, 210-216, 2001
Kriz, et al, "Determination of Ohmic Contacts to n-type 6H- and Polycrystalline 3C-SiC using Circular Transmission Line Structures" Diamond and Related Materials, 7, 77-80, 1998
[9] Sang Youn Han and Jong-Lam Lee, Journal of the Electrochemical Society, 149 (3) (2002) G189-G193

Wall-frame and hollow shear wall structure system structure can reduce the earthquake effect, avoid brittle failure and save building materials.
The Energy Saving of the Wall-Frame and Hollow Shear Wall Tianjin QingShuiJiaYuan, a 12-storey residence, its construction area is 11,700m2, is designed by using applications of two structure system design: the hollow wall and wall-frame and the special-shaped columns frame. the material of the two kinds of structure system is shown in Table 2.
Table 2 Tianjin QingShuiJiaYuan, Comparing the Two Structural Systems hollow wall and wall-frame special-shaped columns frame concrete[m3]. 1163 1209 steel[t]. 100.9 210 According to the calculation of steel and cement used, 81.9t of standard coal (the raw materials consumption producing raw or unprocessed materials)is saved, namely 7kg coal are saved per square meter, 226.98t carbon dioxide emissions are reduced totally, namely 19.4kg emissions are reduced per square meter.
Acknowledgements This work was financially supported by Tianjin application infrastructure and cutting-edge technology research program Youth Fundation(12JCQNJC05000) and Leading Project of Tianjin science and technology support program （12ZCZDSF00500） References [1] Shufang Xu ect.
An experimental study on the aseismic behavior of hollow shear wall of reinforced concrete[J] Journal of Xi’an University of Architecture & Technology(Natural Science Edition) , 2002.06(2):133-136.In Chinese.

Numerical Simulation on Molten Process of GaAs Target Bombarded by Intense Pulsed Ion Beam Jianjun Sun 1,a , Jianfeng Li2 , Zhendong Liu1 and Guoqing Li 1,b,* 1 State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, China 2 Dalian Jiaotong University, Dalian, 116028, China a Jianjunsun2006@163.com,b,*liguoq@dlut.edu.cn; Key Words: Numerical simulation; IPIB; Temperature field; GaAs Abstract.
Introduction In the last 20 years, intense pulsed ion beam (IPIB) techniques have been extensively applied in the material science and engineering field [1-4].
With different energy densities, IPIB has been used for different motivations, such as materials modification, film deposition, and nano-size powder production.
The results can give the significant theoretical evidence for IPIB industrial applications, such as ion beam annealing of semiconductors, surface modification technique of materials, etc.
[8] LEI Ming-kai, MIAO shou-mou, Journal of Thermal Science and Technology, Vol2, No2 (2003).

Experimental Materials and Methods The experiment used the industrial pure titanium TA1 plank.
The material kept its original phase composition in welding process.
Applied Surface Science. 303 (2013) 367-372
Ni, Wear failure behaviour of titanium-based oxide coatings on a titanium alloy under impact and sliding forces, Journal of Alloys and Compounds,578 (2013) 336-344
Applied Surface Science. 282 (2013) 271-280.

Introduction Within the scope of Electrical Discharge Machining (EDM), High speed Drilling Electrical Discharge Machining (HSDEDM) is an important technology to drill small holes on high strength and hard metal point materials.
Like other normal EDM, HSDEDM also removes of matter from high hardness conductive materials by means of a series of repeated electrical discharges between electrode and work-piece, which are separated by a discharge gap.
The work-piece material was 40Gr steel and water was used as dielectric.
Acknowledgment This work was funded by National Science Foundation of China with the grant number: 50875064 and supposed in the frame of 863 research project of China with the grant number: 2007AA04Z345 and supposed in the frame of Heilongjiang province important science and technology fund with grant number: GA06A501.
S. shah, Journal of the Institution of Engineers (India) -Mechanical Engineering Division, vol. 51, (1971) pp. 67-73,

In order to reduce environmental problems in respect to organic and inorganic pollutants, among the various processes, adsorption is one of the promising technologies in this way, especially using low-cost adsorbents such as clay materials [3,4].
Materials and Methods Material The clay used was the natural Brasgel clay, provided by the company BENTONISA - Bentonite S.A. the Northeast, located in the city of Boa Vista/PB, Brasil.
Silva: Journal of Hazardous Materials Vol. 176 (2010), p. 109
Handbook of Clay Science.
Developments in Clay Science, Elsevier v. 1, 2006