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Wu 2 1 Dept. of Precision Instruments and Mechanology, Tsinghua University, Beijing, 100084, China 2 Dept. of Machine Intelligence & Systems Engineering, Faulty of Systems Science and Technology Akita Prefectural University, 84-4 Tsuchiya-Ebinokuchi, Honjo, Akita 015-0055, Japan Keywords: Asphere, Computer-Controlled Optical Surfacing, Removal Function, Dwelling Time Abstract.
It is surmised from Eqs. (4)-(5) that the material removal rate depends only on r if parameters L, W, W1, and p are kept constant, indicating that the material removal is different at different working points.
It is obvious that the parameter W would affect the uniformity of material removal, (W), strongly in some ranges of W.
The results indicated that although as the parameter W increases the material removal increases monotonously, the parameter W should be setup at a range of 0.9-6 for improving the uniformity of material removal.
Deeg: AMP Journal of Technology, Vol. 2 (1992), p. 237.

Foamed metal is a kind of porous material with pores in the metal matrix.
Hur: Materials Science Forum, 486-487 (2005), p. 464-467 [7] D.
Banhart: Journal of Metals 52 (2000), p.22-27

Materials and Methods The cast bronze specimens have been realized starting from pure elements.
On corroded surfaces it is possible to localize areas without these crystals characterized by numerous microcracks which grow inside the materials.
Leygraf, The evolution of outdoor copper patina, Corrosion Science 44 (2002) 425-450
Lopez, Characterization of artificially patinated layer on artistic bronze exposed to laboratory SO2 contamination, Journal of Materials Science 32 (1997) p.129-133
Graedel, The reaction of simulated rain with copper, copper patina, and some copper compounds, Corrosion Science 27 (1987) 703-709

During the third stage, real language materials and environment make the students feel free in communication with each other in a foreign language.
Consequently, the model—with the teacher as the center, teaching materials as the center, and the classroom instruction as the center—comes into being and plays a vital role in traditional teaching.
The problem is that most of teaching materials could not keep pace with the times and satisfy students’ thirst for knowledge.
The development of computer science provides many choices for CALL users to choose their favorite hardware and software.
Journal of the Learning Sciences, 1999, 8

Corrosion Science, 48(12), (2006), 4378-4385 [2] M.A.
Materials Science and Engineering: A, 528(15), (2011), 4927-4920 [3] T.Y.
Corrosion Science, 50(7), (2008), 1865-1871 [6] Kumkum Banerjee, U.K.
Material Science and Engineering, 527(26), (2010), 6997-7001 [8] Thorsten Michler, Joerg Naumann.
Journal of Chinese Society for Corrosion and Protection, 31(1), (2011), 46-50

Materials and Methods Materials and reagents.
The oleanolic acid standard sample was purchased from DaLian BoMai Science & Technology Co.
Further studies on extraction, separation, and purification of Ophiuroid saponins according to routes applied on plant materials are needed to be strengthened for promoting development and utilization of the resource.
Vol. 65 (2002), p. 153-157 [2] Ji Li, Yuan-Gang Zu, Yu-Jie Fu: Innovative Food Science and Emerging Technologies Vol. (2010), p. 637–643 [3] John W.
:Journal of FoodScienceVol. 77, (2012), p. 975-982 [18] Bezerra MA, Santelli RE, Oliveira EP,et al.: Talanta.

All papers, both, from contributors and organisers are published in the journal 'Composites Science and Technology'. 1.2 Requirements from Standards According to some standards, e.g.
In German) [11] Tsai, S.W. and Wu, E.M.: A General Theory of Strength for An-isotropic Materials.
Journal Comp.
Materials 5 (1971), 58-80 [12] Rackwitz, R. and Cuntze, R.G.: System Reliability Aspects in Composite Structures.
The Minerals, Metals & Materials Society, 1993 [14] Cuntze, R.

An extensive review of these materials and their applications can be found in [17].
Bulk density of the materials used in the mortar mixes.
Harris, Nanotechnology innovations for the construction industry, Progress in Materials Science 58 (2013) 1056-1102
Rosa, Nanostructured silica/polymer subcritical aerogels, Journal of Materials Chemistry 19 (2007) 2195-2198
Gil, Cork agglomerates as an ideal core material in lightweight structures, Materials and Design 31 (2010) 425-432

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.

Introduction Zirconium and its alloys are extensively used as structural materials in nuclear reactors because of their unique combination of good corrosion resistance in water near 300oC, good mechanical properties and low neutron capture cross section for thermal neutrons [1-2].
It could be shown that nature and extent of irradiation is different in both materials. 100nm a 0.1mm 100nm b 0.1mm 100nm c 0.3mm Fig. 6.
It could be shown that nature and extent of irradiation is different in both materials Zr-2.5 Nb alloy pressure tubes The irradiated samples obtained from the 13 locations showed the average width, length and aspect ratio of the a grains in the range of 0.17-0.27 µm, 1.7-2.3 µm and 7.1-8.5 respectively.
A Holt, Journal of Nuclear Materials vol. 372 ( 2008) 182, [4] D.N.
DhotreJournal of Nuclear Materials vol 383 (2008) 128