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The resultant increase in outlays for processing, as well as for materials, raises issues in holding down costs.
To examine a wide variety of potential drilling situations, the drill bit materials were conventional cemented carbide tool alloys, diamond coated cemented carbide tool alloys, and polycrystalline diamond (PCD).
A new tool material, TiB2 ceramics, was also tested.
Table 2 Comparison of drill materials and characteristics Tool material Material hardness Tool life, number of holes Hole quality and typical features Price Solid carbide, Standard twist HRA 85-95 good 60–150 Most common tools．Along the progress of tool wear, delaminiation easily occurs at the outlet side of the holes.
Acknowledgments This study was supported by the Grant-in-Aid for Scientific Research (KAKENHI) by the Ministry of Education, Culture, Sports, Science and Technology, and the Gifu Research and Development Foundation, Japan.

Figure 1 Chemical structure of Risocaine Table 1 Purities and physical properties of the substances used in this work Substance Mw (g/mol) Tm (K) Vs (L/mol) Tc (K) Pc (bar) Psat(Pa) (298K) ω Purity (mol%) Carbon dioxide 44.01 － － 304.19 73.82 － 0.228 >99.9 Risocaine 179.22 596.45 0.1626 819.13 31.42 0.00352 0.717 >99 Experiment Materials.
Acknowledgements This work was supported by the National Natural Science Foundation of China (No: 21076068), Program for Hunan Provincial Natural Science Foundation of China (No. 07JJ3016), and Aid program for Science and Technology Innovative Research Team in Higher Educational Institution of Hunan Province.
Supercritical fluids as solvents for chemical and materials processing.
Journal of Supercritical Fluids. 2001,20, 179-219
Salicylic acid solubilization in supercritical CO2 and its micronization by RESS, Journal of Supercritical Fluids. 1993, 6, 241-248.

Father Henry of French science management Method invite the Er(Henry Fayol) announce in 1916 of 《industrial management with general management (General and Indus- trialM anagement)》 in the first time lead the thought of risk management into management to manage in, but don't form complete system.
References [1] Sun Cheng Shuang, Gu Guo Chang.Many Agent system frame [J] .Northeast forestry university college journal, 2006,34(5):81-82(In Chinese)
[7] Jin De Min, Zheng Pi E.The theory of the engineering item whole life span risk management system and it the application study [J] .University college journal(social science version) in Tienjin, 2005,7(4):254-258(In Chinese)
The engineering constucts the item risk management system research [D] .Xian constructs science and technology university. 2003 [11] Stephen Grey.Comparison of Three Approachesto Project Risk Man－agement [R].
International Journal of Project Management,17(3):161-169

Artocarpus heterophyllus Lam is widely cultivated as a southern tree species; its wood material characteristics research is practically significant.
Materials and Methods The wood Materials Experimental wood material was collected in November 2008 in the West Campus of Guangxi university from a tree identified as Artocarpus heterophyllus Lam wood (age 11 years) by professor XuFeng working in forestry College of Guangxi University.
The residual material was cooled and filtered and washed 3 times with distilled water.
Acknowledgment The authors are grateful to Science and Technology Department of Guanxi Zhuang Autonomous Region, Education Department of Guanxi Zhuang autonomous Region for financial support: Guangxi Natural Science Foundation(09236002), Guangxi Education Department Scientific Research Fund (2009LX003).
[3] K.K.Pandey, Journal of Applied Polymer Science, Vol.71(1999), p.1969

Experimental Procedures Materials.
The mechanical properties of the ceramic materials used here are listed in Table 1.
The alumina-containing materials showed a shorter appearing time.
Choi, Materials Science and Engineering, A497 (2008), p.160 [3] M.
Society of Materials Science, Japan, 60 (2011), in printing [in Japanese] [4] K.Yasuda, J.Tamaki, K.Asada, Y.Matsuo and S.Kimura, J.

The materials are the key factor for the manufacture efficiency, quality, cost and its longevity.
It realizes the selection of HSM cutters, which is including the selection to HSM cutting tool shanks, tool-chucks, and the cutters materials.
There are multifarious usual work pieces' and cutters' materials information (grade, composition, and properties) in the system's database.
We compiled information from more than 50 kinds of cutting tools for HSM, including cutting tool materials, trademark, processing conditions, and the condition of work pieces.
[3] M.V.Ribeiro, N.L.Coppini: Journal of Materials Processing Technology Vol.92-93 (2002),p.371.

It is not clear what value of coefficient of friction, µ, should be used in SPF models, since there are no published values for frictional contact between Ti-6Al-4V alloy and typical tool materials, under SPF conditions.
However, as the authors are unaware of previously published friction data between Ti-6Al-4V and SPF tool materials, the present approach does provide initial guidance on friction data for process modelling.
[5] Chen TR, Huang JC, Hwang YM and Wang TD, Materials Science Forum, Vols 304-306, 1999, pp741-746
[12] Avitzur, B., Israel Journal of Tech., 9, 1964, pp. 295-304
[16] Khaleel MA, Johnson KI & Smith MT, Materials Science Forum, Vols 243-245, 1997, pp739- 744.

The irradiation shot duration is 2-4 µs, so work materials can be machined within a short time.
This rapid solidification can produce advanced materials for a wide range of applications.
Therefore, no heat treatment is needed for raw materials before finishing
Sano: Journal of Materials Processing Technology Vol. 180 (2006), p. 246
Panzer: Annual Review of Materials Science, Vol. 18 (1988), p. 121

Effect of Temperature on Low Energy Consumption Electrolytic Preparation of Manganese Dioxide Using Oxygen Depolarized Electrode Hui Zhang 1, a, Huimin Meng 1, 2, b 1University of Science and Technology Beijing Corrosion and Protection Center, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China 2Beijing Key Laboratory for Corrosion, Erosion and Surface Technology, University of Science and Technology Beijing, Beijing 100083, China azhanghui1359404@gmail.com, becm@ustb.edu.cn Keywords: Electrolytic manganese dioxide, Gas diffusion electrode, Cell voltage, Temperature, Low energy consumption Abstract.
Acknowledgment The project was supported by the National Natural Science Foundation of China (No.51274027).
Sun, Study on the manufacture of Pt-C/PTFE gas-diffusion electrodes, Journal of Qinghai Normal University (Natural Science) 4 (1996) 47-49
Lin, Preparation and characterization of Pt/WC catalyst for oxygen reduction at gas-diffusion electrode, Journal of Chemical Industry and Engineering (China) 60 (2009) 2633-2639
Zhang, Studies on ultrafine MnO2 as electrode material of electrochemical capacitor, Chemical Research and Application, 15 (2003) 515-517

MATERIAL AND METHODS Study Area The Qingyi River watershed is a mountainous watershed in the upstream of Yangtze River of China.
In the study, Land use map of 1980s with a resolution of 1km was obtained from Environmental & Ecological Science Data Center for West China, National Natural Science Foundation of China.
Loggia: submitted to Journal of Hydrologic Engineering (2010), Vol. 15(2), 107–122
Xie: submitted to Progress in Natural Science, Vol. 13 (5) (2003), 502–507.
Sutcliffe: submitted to Journal of Hydrology (1970), Vol. 10, 282–290