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Materials Science Forum Vols. *** (2004) pp.528-531 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Pneumatic Proportional Position Control System Based on BP Neural Networks Y.J.
Li 2,c 1 College of Mechanical Engineering, Shandong University, Jinan 250061, China 2 Shandong Light Industry Institute Jinan 250100, China a lyj111@sdu.edu.cn, bkxz8056@163.com, cygxylzw@163.com Keywords: Pneumatic proportional system, Position control, NNC, BP networks Abstract.
Materials Science Forum Vols. *** 529 A three-layer BP network is presented in this paper, the network configure is shown in Fig.2.
Therein, the cylinder is Advances in Materials Manufacturing Science and Technology 530 DGPL-25-500-PPV-A-GF-B type rodless cylinder from Germen FESTO Corporation, the displacement sensor is MLO-POT-500-TLF type, the proportional valve is MPYE-5-1/8-010B type electro-pneumatic proportional directional valve from FESTO Corporation, A/D,D/A transform is implemented by HY－6070 general-purpose data acquisition controlling board .
Materials Science Forum Vols. *** 531 Fig.4 Experimental result whenυ0=0.7m/s, L=100mm Fig.5 Experimental result when Fig.6 Experimental result when υ0=1.5m/s, L=100mm υ0=1.5m/s, L=60mm As shown in the experiment, the greater the muzzle velocity is, the greater the buffer overshoot beginning phase displacement.

Ujihara1, 2, f 1Center for Integrated Research of Future Electronics (CIRFE), Institute of Materials and Systems for Sustainability (IMaSS), Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan 2Department of Materials Science and Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan amura_mura@sic.numse.nagoya-u.ac.jp, bt-hori@sic.numse.nagoya-u.ac.jp, charada@numse.nagoya-u.ac.jp, dxiao@sic.numse.nagoya-u.ac.jp, emtagawa@numse.nagoya-u.ac.jp, fujihara@nagoya-u.jp Keywords: Top seeded solution growth; Step-flow growth; Temperature distribution; Polytype transformation Abstract.
Our research group has found the advantage in the reduction of threading dislocations (TDs): TDs are converted to the dislocations on the basal planes and are discharged to the outside from the crystal side surface by the advance of macrosteps during the SiC solution growth on the Si face [4-6].
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Materials Science Forum Vols. *** (2004) pp.422-425 online at http://scientific.net Ó 2004 Trans Tech Publications, Switzerland ?
Zhou 2,c 1 School of Mechanical Engineering, Shandong University, Jinan, 250061, P.R.China 2 Laiyang Agricultural College, Laiyang,265200, P.R.China a hanyp@sdu.edu.cn, b mengjf@sdu.edu.cn, c zhoujq@lyac.edu.cn Keywords: Non-chisel-edge drill, Machining, High manganese steel Abstract.
Materials Science Forum Vols. *** 423 Structure Features of the Tool In order to improve tool cutting performance and to raise tool life, it was decided to take cemented carbide as drill head.
The accuracy and surface quality of the first face land have a great effect on the tool life and the surface finishing of the machined hole. 8¡ã R7 20¡ã 8¡ã 8¡ã R3 Fig.2 The shape of the insert (a) (b) Advances in Materials Manufacturing Science and Technology 424 Insert Material Selection.
Materials Science Forum Vols. *** 425 References [1] H.

Improved Current Gain in 4H-SiC BJTs Passivated with Deposited Oxides Followed by Nitridation Hiroki Miyake1,a, Tsunenobu Kimoto1,2,b and Jun Suda1,c 1Department of Electronic Science and Engineering, Kyoto University A1-303, Nishikyo, Kyoto 615-8510, Japan 2Photonics and Electronics Science and Engineering Center (PESEC), Kyoto University amiyake@semicon.kuee.kyoto-u.ac.jp, bkimoto@kuee.kyoto-u.ac.jp, csuda@kuee.kyoto-u.ac.jp Keywords: 4H-SiC, bipolar junction transistor (BJT), current gain, passivation, deposited oxide, nitridation.
These results suggest the possibility of surface passivation in BJTs by advanced processes in high performance MOSFETs.
Forum, vol. 615-617, pp. 821-824, 2009
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Materials Science Forum Vols. *** (2004) pp.59-62 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Ultrasonic Machining Mechanism of Sintered Nd-Fe-B Magnetic Materials J.H.
Xu 1,e 1 School of Mechanical Engineering, Shandong University, Jinan, China 250061 a jhzhang@sdu.edu.cn, bshengfengren@hotmail.com, c niuzongwei@hotmail.com, d cllyli1109@163.com, emingangxu@hotmail.com Keywords: Nd-Fe-B, Ultrasonic machining, Micro-fracture Abstract.
Impact occurs Advances in Materials Manufacturing Science and Technology 60 only where the tool is in close proximity to the workpiece, so that close tolerances can be achieved by controlling the tool and the abrasive dimension.
Materials Science Forum Vols. *** 61 For the relation between the size of center crack C and the load P, the following equation can be derived [5, 6]: m CkP ⋅= (2) where, m = 1.5, and k is a coefficient.
Yang: Journal of Mechanical Engineering Materials Vol. 19 (1995), p. 43 [3] Z.F.

Studies on Initial Stage of High Temperature Oxidation of Fe - 9 to 12%Cr Alloys in Water Vapour Environment Akbar Kaderi1, Mohd Hanafi Ani1*, Sukreen Hana Herman2, and Raihan Othman3 1Department of Manufacturing and Materials Engineering , Kulliyyah of Engineering, International Islamic University Malaysia (IIUM), Jalan Gombak, 53100, Kuala Lumpur, Malaysia. 2Centre for Electronic Engineering, Faculty of Engineering, Universiti Teknologi MARA, Shah Alam, 40450, Selangor, Malaysia. 3 Department of Sciences in Engineering, Kulliyyah of Engineering, International Islamic University Malaysia (IIUM), Jalan Gombak, 53100, Kuala Lumpur,Malaysia.
Introduction The international research and development projects on advanced steam cycle power plants in Japan, USA and Europe beginning in late 1970s has triggered the development of various heat resistant steels [1].
Othman, Observation on Void formed in Oxide Scale of Fe-Cr-Ni alloy at 1073 K in Dry and Humid Environments, IIUM Engineering Journal, 12 (5), (2011) 69-78
Maruyama, Void Formation at the Interface of the Duplex Scale Formed on Fe-5Cr Alloy at 773K, Materials Science Forum, 696, (2011) 34-38
Kawamura, Void Formation in Growing Oxide Scales with Schottky Defects and p-type conduction, Materials Science Forum, 595-598 (2008) 1039-1046.

A test method and test codes generator for improved HT Fault Model based on NoC Yuzhu Zhang1,a ,Yigang He1,b,Lifen Yuan1,c,Maoxu Liu1,d 1School of Electrical Engineering and Automation ,HeFei University of Technology，China a1156311076@qq.com,b18655136887@163.com,c6007542@qq.com ,dliumaoxu@qq.com Keywords:NoC,Crosstalk, Improved HT fault model, Test codes, PSpice Abstract.NoC is a expand for SoC.The architecture of NoC is huge and complex,it leads to the crosstalk fault between internal transmission of NoC increasingly serious.
Acknowledgements This work was supported by the National Natural Science Funds of China for Distinguished Young Scholar under Grant No 50925727, the National Defense Advanced Research Project Grant No.C1120110004,9140A27020211DZ5102,the Key Grant Project of Chinese Ministry of Education under Grant No.313018,Anhui Provincial Science and Technology Foundation of China under Grant No. 1301022036 and Hunan Provincial Science and Technology Foundation of China under Grant No.2010J4 and 2011JK202.
[8]JQ Chen:line identification of nonlinear systems using fuzzy mode[J]．Journal of Acta Automatica Sinica,Forum Vol. 24 (1998), p. 90-93 [9]Jinlin Zhang:A New Fault Model for Testing Signal Integrity in SoCs in Chinese.
Forum Vol. 36 (2007), p. 611-613 [10]Shuyan Jiang:Improvement and verification of interconnection crosstalk fault model of network-on-chip in Chinese.ELECTRONICM EASUREM ENT TECHNOLOGY.Forum Vol. 35 (2012), p.123-127 [11]Ji Yang:Interconnect crosstalk test methods research on NoC in Chinese.University of Electronic Science and Technology of China.(2011) [12]Tianrui Duan:PSpice Simulation Analysis and Application for Crosstalk on Flexible Printed Circuit Board in Chinese.EMG SIMULATION (2009)

Department of Materials Engineering, Tallinn University of Technology Ehitajate tee 5, 19086 Tallinn, Estonia E-mail: Lembit.Kommel@ttu.ee Keywords: Equal channel angular pressing, Rare metal, Niobium, Tantalum, Ultrafine grained, Electron-beam melting Abstract.
These superior properties make UFG and NC structured pure rare metals attractive for numerous advanced applications in aerospace, electronics, telecommunications, semiconductors and medical industries.
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Materials Science Forum Vols. *** (2004) pp.282-286 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Preparation of Agglomerate-free Starting Powders for TiCp-reinforced ß-Sialon Nanocomposites Z.J.
Zhao1,c 1 School of Mechanical Engineering, Shandong University, Jinan 250061, P.R.
To achieve good dispersion of TiC particles in the nanomatrix, an organic surfactant (PEG) was used to separate individual contents powder grains and produce the spatial inhibition necessary to Materials Science Forum Vols. *** 283 avoid particle agglomeration during mixing of the starting powders.
Advances in Materials Manufacturing Science and Technology 284 The suspensions of TiC and Al2O3 were washed twices with ethanol, and mixed together with AlN suspension and Si3N4 powder in an Tefzel coated tank using ethanol as medium.
(a) (b) (a)AlN powder, (b)after treatment in PEG-containing solution Fig.4 Dispersion of TiC powder Fig.5 Treated nanocomposites suspension (before attrition milling) Advances in Materials Manufacturing Science and Technology 286 References [1] T.

Materials Science Forum Vols. *** (2004) pp.811-815 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Research on Thickness of the Free Confinement Medium in Laser Shock Processing R.F.
Zhang 1,c 1 School of Mechanical Engineering, Jiangsu University, Zhenjiang Jiangsu 212013,China a huayq@ujs.edu.cn, bykzhang@ujs.edu.cn, cjcyang@ujs.edu.cn Keywords: Laser shock processing, Free confinement medium, Optimal thickness Abstract.
Assumingβis dimensionless value modify coefficient (βrelates to the firmness and the critical dynamic fracture strength of the free confinement medium), Eq. 2 is given following 3 2 0 3 1 0 3 2 2 )1/()1( 1/2 )()]1(2[)1()2( Aq K kkP kk kk m ⋅⋅−⋅ +⋅ ⋅= −+ −− ρ β (2) Materials Science Forum Vols. *** 813 The Optimal Thickness of the Free Confinement Medium Fig.1a illustrates laser shock processing.
And when the absorbing coating dries, the Advances in Materials Manufacturing Science and Technology 814 liquid organic mixture is then coated on the specimen surface, and the thickness of mixture is primarily determined through Eq. 3.
Materials Science Forum Vols. *** 815 References [1] Y.K.