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Experimental Materials and reagents ZSO was provided by a local company located in Hancheng, Shaanxi Province, China.
Acknowledgement This work was supported by the National Natural Science Foundation ( No.50976125, China)　and the fund of Xi’an Research Institute of Hi-Tech(No.ZDXKBQB17, China).
Journal of Petrochemical Universities. 2010, 23(4): 38-43

This paper studies the effect on the structure and performance of steel plate for 3.5Ni low temperature steel with appending Ti and Nb elements. 1 Experimental material and methods Experimental steels were prepared by melting in 50kg vacuum induction furnace, cast into ingots.
Steel Rolling, 2004, 21(6): p.45(In Chinese) [2] CITIC-CBMM, eds．Niobium Science and Technology [C].
[3] Sun Quan -she, Analysis of Precipitate Phase in ULC Steel With Titanium and Niobium for Different Processes [J], Journal of Iron and Steel Research,2006,18(2): p.41(In Chinese) [4] Yong Qi-long, Ma Ming, Wu Bao-rong, Microalloying Steel- Physical and Mechanics Metallurgy[M]．Beijing，China：Metallurgical Industry Press，1989(in Chinese) [5] Yong Qilong.
Second phase in Iron and steel material [M].

Materials and methods Characteristics of the sludge The surplus activated sludge was obtained from a full scale waste water treatment plant in Guangdong of China.
Acknowledgements This work was financially supported by the China National Natural Science Foundation (50906058).
Liu: submitted to Journal of Analytical and Applied Pyrolysis (2011) [8] USEPA, Federal Register, Toxicity Characteristic Leaching Procedure (TCLP), 40 CFR, Vol. 50, No. 286, Appendix 2, Part 268, 1986, p. 406–943

A study on Cu and Nb precipitation during high temperature tempering in low carbon steels Hui Guo1, a, Xiaoran Sun2,b, Shanwu Yang1,c, Xuemin Wang1,d and Chengjia Shang1,e 1Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, P.R.China 2Hebei General Research Institute of Iron and Steel Technology, 050000, P.R.China aguohui@mater.ustb.edu.cn, bragyy@126.com, cyangsw@mater.ustb.edu.cn, dwxm@mater.ustb.edu.cn, ecjshang@ustb.edu.cn Keywords: Cu precipitates, NbCN precipitates, tempering, low carbon steel Abstract.
Wang: Journal of Liaoning University of Technology 28 (2008), p.333

Modified Analytical Method for Stress Intensity Factor Calculation of Infinite MSD Plate Containing Multiple Holes Jin-Fang Zhao1, a, Li-Yang Xie1 , Jian-Zhong Liu 2 and Qun Zhao3 1 School of Mechanical Engineering & Automation, Northeastern University, Shenyang, China 2 Beijing Institute of Aeronautical Materials, Beijing, China 3 Department of Mechanical Engineering, Shenyang Institute of Engineering, Shenyang, China a zhaojinfangneu@sohu.com Keywords: Infinite MSD plate containing multiple holes, Complex variable stress function, Approximate superposition method, Equivalent crack, Stress intensity factor Abstract.
Liu: Journal of Inner Mongolia Normal University (Natural Science Edition) (in Chinese).

Development of Processing Machine for Convex Curved Rake Face of Pinion Cutter Xueguang LI 1, a ,Shuren ZHANG 1, b ,Guoquan SHI 1, c and Linsen SONG 1, d College of Mechanical and Electrical Engineering, Changchun University of Science and Technology , Changchun 130022; Lixg_1979@163.com, zhangshuren@cust.edu.cn, sgq@cust.edu.cn , songlinsen@cust.edu.cn Keywords: Pinion Cutter, Convex Curved Rake Face, Vertical Machining Center, Surface Roughness, Cutting Parameters Abstract.
A new machine is researched and developed in this paper, though this machine, CNC machining of pinion cutter with convex curved rake face is realized, though sharp analysis of pinion cutter with convex curved rake face, linkage control of a revolving axis and a linear axis is needed at least in the machining of convex curved face, in order to verify the accuracy of this analysis, machining experiment of convex curved rake face is done on the four axes vertical machining center as shown in Fig.2(a), though linkage control of X axis and A axis, work piece is machined as shown in Fig.2(b), convex curved face is machined on the cross section of cylindrical bar materials, shape feature of this convex curved face and convex curved rake face of pinion cutter is consistent, the experiment result shows that the processing method are proper for machining requirements of convex curved rake face.
International Journal of Machine Tools & Manufacture .2008: 733–745

A Pilot Study on the Volume Ratio of Anaerobic/ Anoxic / Aerobic in A2/O process Influence on Nitrogen and Phosphorus Removal Qiong WAN 1,a, Qian FENG 2,b , Dang-cong PENG 2,c and Shi-ping JING 3,d 1 College of Architecture and Civil Engineering; Xi’an University of Science and Technology, Xi’an 710054, China; 2 School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 3 Southwest Municipal Engineering Design & Research Institute of China, Chendu 610081, China) awq6675@sina.com, bzhuifengismylove@163.com, cdcpeng@ixauat.edu.cn, dshiping_jing@sina.com Key words: volume ratio; A2/O process; nitrogen removal; phosphorus removal; pilot Abstract The volume ratio of anaerobic/anoxic/aerobic was an important factor for the removal of nitrogen and phosphorus in the A2/O process.
Materials and methods Test unit and operation The A2/O process employed in the pilot plant is shown in Fig 1.
Water and Environment Journal, 1994, 8 (1): 84～92 [4] Kuba T,Van LoosdrechtM CM, Heijnen J J.

Specific performance is in: it fully consider the needs of readers in general layout, landscape environment, function space, streamline organization, architectural modeling, even furniture, oddment and installation of equipment, has reflected on the reader's material and spiritual care in all aspects.
In the pursuit of "grandeur", some libraries arrange thousands of square meters "share space" in the hall, and cover with new material glass roof, hanging chandelier, occupy a few thousand cubic meter volume.
Xu and Z.Tang: Journal of Anhui University of Technology (Social Sciences).

Development and Comparison of Models for Predicting Printing Quality in Flexographic Printing Zhang Lin1, a, Zhang Meiyun1, b, Yang Junping2 1College of Papermaking Engineering, Shaanxi University of Science & Technology, China. 2Graduate Faculty, Beijing Institute of Graphic Communication, China.
The products selected for the evaluation reported here, were chosen on the basis that they were the standard materials used by the printer.
[2] Marquardt, D.: Journal of the Society for the Industrial and Applied Mathematics ,(1993), p.431

Development of Hot Rolled Strips for Internal Plates of Automobile Xingdong Peng1, a﹡, Meiling Wang1, b, Shengli Li1, c and Jie Xu2, d 1School of Material and Metallurgy, University of Science and Technology Liaoning, 185 Qianshan Road, Anshan 114051 China 2Technical Center, Tangshan Iron and Steel group Co.Ltd., 9 Binhe Road, Tangshan, 063016, China.
Fatigue experiments were conducted by material testing simulation machine (MTS) 810（10t）and tensile-tensile fatigue performance testing was measured: some parameters were set as follows: R＝0.1, fatigue test cycle was 30 Hz, fatigue stress waveform was sine wave, according to national tension-tension fatigue test standard (GB3075-82).
[6] S.L.Li, N.Li, X.D.Peng, X.Y.Lv, J.G.Li, Fatigue property of hot rolled and cold rolled strips, Journal of Iron and Steel Research. 2 (2013) 48-51.