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Danilenko3,f 1Charles University in Prague, Faculty of Mathematics and Physics, Department of Low Temperature Physics, V Holesovickach 2, CZ-180 00 Praha 8, Czech Republic 2Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany 3National Academy of Sciences of Ukraine, Donetsk Institute for Physics and Engineering Named after O. 
Brauer (Eds.), Near-Surface Depth Profiling of Solids by Mono-Energetic Positrons, Defects and Diffusion Forum 331, Trans.
Belova (Eds.), Diffusion in Advanced Materials, Diffusion Foundations 1, Trans.
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Materials Science Forum Vols. *** (2004) pp.755-759 online at http://scientific.net Ó 2004 Trans Tech Publications, Switzerland Robust Position Controller Design For Linear Servo Units Used in Noncircular Machining S.T.
Hence, the MPRC as the feedforward controller is introduced in the paper, which need not have to identify the system model accurately and works only based on the frequency response data of the closed system, and the system tracking accuracy Advances in Materials Manufacturing Science and Technology 756 is improved [7].
From the block diagram in Fig.3, the output v is expressed as ()() uvdv vGsuGsd =+ (3) Li near Mot or Di st ur bance Obser ver Vel oci t y Cont r ol l er EFC Posi t i on Cont r ol l er MPRC ,vy e r + + + + Fig.1 The Overall Structure of The Proposed Robust Position Controller v + + + u d Gv( s) Gp( s) Fig.2 Conventional Control Scheme in Velocity Loop v + ++ u d Gp( s) Q( s) Gv( s) 1 ()Gns - + + ˆd Fig.3 Robust Control Scheme in Velocity Loop Materials Science Forum Vols. *** 757 where () vpn uv npnvpn GGG G GGGQGGG = +−+ , (1) () pn dv npnvpn GGQ G GGGQGGG − = +−+ (4) If Q(s)˜ 1, the three transfer functions in Eq. (4)~(6) become Guv˜ GvGn/( 1+GvGn), Gdv˜ 0.
This principle is illustrated as Eq.9 and Fig.5. 0 50 100 150 200 250 300 -10 -5 0 Frequency[Hz] magnitude[dB] 0 50 100 150 200 250 300 -150 -100 -50 0 Frequency[Hz]Phase[degrees] Fig.4 Measured Frequency Response Data of the Closed Loop System Advances in Materials Manufacturing Science and Technology 758 2 1 (()) 1 1(0)() () (0)() k ki N j N f k k XXk rie NAA p q − −Ω =  =+⋅  Ω  ∑ (9) where rf (i) is the control signal after MPRC , Gclose(z) is the discrete transform function of the cosled loop system.
Cheng: Chinese Journal of Mechanical Engineering Vol. 37 No.8 (2001), p. 43.

Bulk Mg produced by back pressure equal channel angular consolidation (BP- ECAC) Xiaolin Wu 1, a , Wei Xu 1, b , Masahiro Kubota2, c and Kenong Xia 1, d 1 Department of Mechanical Engineering and ARC Centre of Excellence for Design in Light Metals, The University of Melbourne, Victoria 3010, Australia 2 College of Industrial Technology, Nihon University,1-2-1 Izumi-cho, Narashino, 275-8575 Japan a xiaolinw@unimelb.edu.au, bweixu@unimelb.edu.au, ckubota@cit.nihon-u.ac.jp, d kxia@unimelb.edu.au Keywords: Magnesium; equal channel angular processing (ECAP); powder consolidation; particles; severe plastic deformation Abstract.
The ever increasing demands for using magnesium alloys have driven researchers to turn to the development of advanced materials using novel processing techniques such as severe plastic deformation (SPD).
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Study of mine environment monitoring system based on wireless sensor network Jun Wang1,a, Feng Wang2,b and Shuren Han1,c 1School of Mechanical and Electronic Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China 2Nanjing Gaote Gearbox Manufacturing Co., Ltd, Nanjing 210012, China amkfriend@126.com, bwf0411@126.com, c18911107@qq.com Keywords: Wireless sensor network, Zigbee, Data fusion, Network topology, Early-warning system.
Forum Vol. 30(2011), p.837 (In Chinese) [2] Information on http://www.zigbee.org/ [3] Texas Instruments: CC2530 Data Sheet (Revision B) swrs081b (Texas Instruments, Texas 2011) [4] Qun Duan, A Ni Zhao: Advanced Materials Research.
Forum Vol. 411(2011), p.592 [5] Jian Hong Wang, Lei Liu: Applied Mechanics and Materials.
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China 3Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794-2275, USA ayanglong@poshing.cn, bzhaolixia@poshing.cn, cwuhuiwang@poshing.cn, dyafei.liu@stonybrook.edu, etuerxun.ailihumaer@stonybrook.edu, fbalaji.raghothamachar@stonybrook.edu, gmichael.dudley@stonybrook.edu Keywords: 4H-SiC substrate; Homo-epitaxial layer; Defects morphology; Basal plane dislocations; Threading edge dislocations.
Synchrotron White Beam X-ray Topography (SWBXT) and Monochromatic Beam X-ray Topography (SMBXT) [10] were conducted at 1-BM, Advanced Photon Source at Argonne National Laboratory to analyze defect distribution of substrates and homo-epitaxial wafer with different thickness.
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The proposed system offered a method to solve the practical engineering problems of supervisor management.
Xia: Computer Engineering and Design, Vol. 27 (2006), p. 1752 [4] M.B.
Wang: Journal of Chemical Engineering of Chinese University, Vol. 18 (2004), p. 643 [6] Y.
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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.

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.

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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Currently, many larger parts are sliced, sectioned or otherwise altered in order to provide access and thereby exploit the capabilities of advanced neutron and synchrotron diffraction instruments [[] S.V.
Oliver, Residual stress in a thick section high strength T-butt weld, Materials Science & Engineering: A, 480 (2008) 411-418. ,[] A.
One could then use advanced mapping capabilities with synchrotron or neutron diffraction to reconstruct a full map of the full stress tensor.
Some other recent work combining two destructive methods has resulted in other advanced capabilities.
Smith, An integrated approach for measuring near-surface and subsurface residual stress in engineering components, The Journal of Strain Analysis for Engineering Design, 39 (2004) 483-497. ].