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Its characteristics are: has three distance mode for selection by jumper J1 (short range mode, mid-range, adjustable distance); l Short range mode: 10cm—80cm or so (depending on the surface of materials measured decision); l medium range mode: 80cm—400cm or so (depending on the surface of materials measured decision); l Adjustable range mode: Adjustable parameters determined by the scope.
[3] Sensors for distance Measurement and Their Applications in Automobiles [J] .Aalen Germany: University for Applied Sciences
Localization of an autonomous mobile robot based on ultrasonic sensory information .Journal of Intelligent and Robotic Sys-tems:Theory and Applications. 2001, 3(30) :267-277

Dynamic membrane bioreactor is a new type of wastewater treatment technology, which uses the coarse mesh material (such as non-woven fabric, wire mesh, etc.) as the filter base material.
Materials and methods Emulsified oil wastewater.
Environmental Science and Technology, 40: 2706–2713
Journal of Biological Chemistry, 193(1): 265–275

Introduction B4C is a well-known ceramic, as one of the hardest materials with high elastic modulus, high melting point and low specific gravity.
Wang: Journal of CSIMM.
Kim: J. of Materials Science.

Numerical Modeling of Planar Flow Casting Process Kee-Hyeon Cho 1,a, Kee-Ahn Lee 2,b, Moon-Chul Kim 1,c and Joong-Mook Yoon 3,d 1 RIST (Research Institute of Industrial Science & Technology), Gyeongbuk 790-600, Korea 2 School of Advanced Materials Engineering, Andong National Univ., Gyeongbuk 760-749, Korea 3 AnyCasting Co., Ltd., Seoul 157-842, Korea a khcho@rist.re.kr, bkeeahn@andong.ac.kr, cmckim@rist.re.kr, and djmyoon@anycasting.com Keywords: PFC (Planar Flow Casting), Amorphous Strip, Rapid Solidification, Puddle Abstract.
Still, the heat transfer phenomena of the single-roll process are complicated by the accompanying phase changes of the moving solid/liquid interface as well as the flow of the material in both liquid and solid phases [3,4].
- All material properties are constant and isentropic
CHANG and CHENG-I, WENG: Numerical Modeling of Twin-Roll Casting by the Coupled Fluid Flow and Heat Transfer Model, International Journal for Numerical Methods in Engineering Vol.40 (1997), p. 493 [4] Pryds N.

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Obtention of Silicate-Substituted Calcium Deficient Hydroxyapatite by Dry Mechanosynthesis C.
Materials and Methods Two mechanochemical reactions were performed in a planetary Retsch mill, milling at 350 rpm.
Acknowledgements The authors thank the Science and Technology Spanish Ministry for funding this work through the Integrated Action HF00-97.
Bonfield: Key Engineering Materials Vols. 218-220 (2002) pp. 203-206 [2] I.R.

In practice of engineering, the cracks are often found near the inclusion when the forces applied to the composite materials containing inclusion.
As a result, it is important to study this problem especially for non-destructive inspection and strength designing of the composite materials.
Acknowledgements National Natural Science Foundation of Heilongjiang Province (A0206) References� [1] Pao Y.
Journal of Harbin Engineering University.Vol. 25(2004), p. 618-622 [4] Liu Diankui, Lin Hong.

Introduction There are complex components of pollution material, poor biodegradability in straw pulp papermaking wastewater.
From Fig.1 and Fig.2 showed, there were irremoved material which were phthalic acid mono-2-ethylhexyl ester and Diisobutyl phthalate (DIBP). 1.
According to the characteristics, it used absorption intensity of wastewater at the 254nm wavelength to reflect the number of aromatic substances, and to indirectly reflect the removal rate of material difficult to be biodegraded by the combination process.
References [1] T.X Li: Study on the Preparation and Mechanism of A New Kind of Mesoporous Water Purification Material (Ph.D., University of Science and Technology Beijing, China 2005), P.8
Abdelwahab: Chemical Engineering Journal, Vol 146 (2009), p.205

Introduction Modern science and technology development, teaching concepts, methods, systems are carrying out reforms.
IT is an important and difficult problem Beginners written materials, this problem affects the professional music education teaching materials speeds, so you need the education sector to form a professional team, the team with the higher level of music and information technology in order to make more suitable the new era of music teaching teaching mode.
Symphonic Journal of Xi'an Conservatory of Music, 2013 (3).

One part contains the upper structure and the adjacent soil, namely general structure, which may have complex materials and geometries, FEM is more suitable to model this part rather than other numerical methods using mature commercial software, another part of soil usually be simulated with Infinite Element Method, Boundary Element Method or Finite Difference Method.
But in most cases, the structure and the material property of the rest part of soil except for general structure are complex too, Both of these methods have limitations in simulating it, the application of the Boundary Element Method mainly depends on the basic solution, while the continuous inhomogeneous media, the basic form of the solution will be more complex and be difficult to use, even more, basic solution does not exist at all; FDM fails to model irregular shape.
L2x L1x L1y Point C Point B Point A L2y SV y 0 Bottom artificial boundary Left artificial boundary Free surface Right artificial boundary Fig. 2 Model of numerical experiment of scattering problem Fig. 3 Displacement time history of incident SV-wave (a) Displacement time histories of point A (b) Displacement time histories of point B (c) Displacement time histories of point C Fig. 4 Displacement time histories of sample points Conclusions This paper presents a domain decomposition coupling method based on FEM and Explicit Finite Element - Finite Difference Method, which divide the model into two regions, the generalized structure and its adjacent soil using the finite element method, since the regional structure and material properties are often very complex, it is more suitable for FEM, and the existing mature finite element software can be easily implemented to model that, and the soil part is simulated by Explicit Finite Element - Finite Difference
Acknowledgements This work was financially supported by the National Grand Science and Technology Special Project of China ( 2011ZX06002-10 and 2013ZX06002001-9).
References [1] Zhang Chuhan and Zhang Guangdou: Shuili Xuebao Vol. 6 (1990), p. 20, In Chinese [2] Wu Qingxi: Journal of Hohai University Vol. 2 (1993), p. 103, In Chinese [3] Cole D m, Kosloff D D and Minster J B: Bull.

Effect of Long-term Aging on Microstructure and Mechanical Properties of a Wrought Ni-base Superalloy Chao Yuan1*, a, Huan Wang1, b, Jianting Guo1, c and Heyong Qin2, d, 1Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China 2High Temperature Materials Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China aychao@imr.ac.cn, bhwang11s@imr.ac.cn, cjtguo@imr.ac.cn, dqinheyong@126.com Keywords: Long-term aging, A wrought Ni-base superalloy, Microstructure, Mechanical properties.
Introduction The experiment alloy is mainly used as the materials of gas turbine discs in our country.
Journal of Alloys and Compounds. 477(2009) 100-103 [7] M.