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Chemical composition of studied material [wt%] C Si Mn P S Cr Ni Mo V Fe 0.39 0.27 1.36 0.017 0.006 1.95 1.0 0.27 0.06 bal.
The amount of retained austenite in the materials is determined using a XRD 3003 PTS X-ray diffractometer.
Fracture surface of Charpy-V notch samples for the material austenitized at (a) 900˚C, (b) 950˚C, (c) 1000˚C and (d) 1050˚C.
Andersson, Materials & Design, Vol. 32 (2011), p. 21 [17] K.
Staniek, Journal of Materials Science, Vol. 9 (1974), p. 879 [19] Y.

In recent years, it has been reported in solar cells, electrochromic materials, antistatic plastic (fiber and polymer film), infrared ray absorbing heat-insulation materials, gas sensors, electrode materials, etc. [4-6].
It’s a new conductive material with great potential and broad market prospect.
Experimental Materials and main instruments.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Contract NO. 21076047).
Zhang: CIESC Journal, Vol. 62 (2011), p. 1460.

Therefore, the design employs modern materials and construction methods to reproduce the traditional forms in a more concise way – white walls, black tiles, lean-to roofs, and courtyards.
It sues wood, steel and glass as materials and employs a great amount of virtual-real comparison.
Raw materials for construction and plaza shall be obtained from the local area.
For one thing, local materials can present regional characteristics.
For other, local materials can reduce the cost.

According to the principles of systems analysis, the teaching system is composed by three aspects of elements, namely, the staff involved in teaching activities, teaching activities dependent material conditions, the process of other teaching environmental factors and teaching activities, thus as one of the main content of material conditions of teaching, the change of teaching methods have been embodied in the reform of model of teaching; besides this, its change will have a major impact to other factors in teaching system.
Journal of University of Science and Technology of China, 2006, 36 (11): 1101-1110

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

Skid steer loader shovel action features combined with advantages of the shovel method of cooperation, we design the trajectory of shovel as follows: (1) In the line segment shown in the Figure,the boom and bucket keeps still ,the bucket bottom and the bottom of the material maintain Figure 1.Schematic diagram of coordinate level, the whole machine maintains a uniform speed frame of working devices of inserting into the stockpile to the A point; (2) In curve segment shown in the Figure, the whole machine maintains a uniform speed of progress at, the boom keeps upgrading and bucket keeps turning to complete the setting track.
Tracking curve and error curve of shovel track In Fig.5 and Fig.6, 1mm amplitude jitter occurs in 0.625s, the boom and bucket cylinder being in contact with the material since 0.625s accounts for this happening , sudden loading exerts certain shock on the hydraulic system.
Chinese Mechanical Engineering,7,64-66(1996) [2] He Qinghua, Zhang Daqing, Huang Zhixiong and Zhang Xinhai: Adaptive Control of Hydraulic Excavator Manipulator, Journal of Tongji University (Natural Science), 9,1259-1263(2007) [3] Zhang Daqing: Reaearch on Motion Control of Working Device of Hydraulic Excavator, Central South University(2006) [4] Ning Qiaoqiao: Reasearch on Adaptive Control of Loaders in Digging, Jilin University(2008) [5] Cai Zixing: Robotics, Tsinghua University Press(2009) [6] Wu Long: A Study on Automatic Control of Wheel Loaders in Rock/soil Loading, The University of Arizona(2003) [7] Zhang Haitao, He Qinghua, Zhang Xinhai and Huang Zhixiong: Modeling And Control Of The Motion System Of a Hydraulic Robotic Excavator, Robotic, 3,113-117(2005)

Experimental Materials.
Acknowledgements: Financial support for this work was provided by The National Natural Science Foundation of China (31072085) and The National Basic Research Program of China (973 program, 2005 CB121000) References: [1] X.Chen, K.
MU: Journal of Shandong Agricultural University Vol.1 (2002), p. 14 [4] J.

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

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

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