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And a key technology is the components digitization, namely uses some measuring technique and the equipment determines material object various surfaces certain point of aim geometry coordinate.
Acknowledgment This work is supported by the Science & Technology Research and Development Item of Shijiazhuang University (No: 09YB005，09QN003，09QN005).
References [1] Hongqiang Sun. (2005)The location tolerance error of measurement in the machine and reverse of the typical entities, Hebei University of Science and Technology
[2]Guang Yang. (2003)The measurement and reverse system in machine, Hebei University of Science and Technology
[4] Liu Libing,Zhang Qing.(1997)A Study on Comperhensive Modeling for Errors in on-line Measuring System of Machining Center.Journal of Hebei University of Technology,14-22

Nowadays, the upswing of high dielectric permittivity materials is a standout amongst the most essential difficulties of new technologies.
They play an important role in the fabrication of high capacitance gadgets, supercapacitor electrode materials, and high frequency devices etc.[2, 3].
Acknowledgments We acknowledge for fellowship grants under Board of research in Nuclear Science (BRNS), Mumbai with Sanction No.:37(3)/14/19/2014-BRNS/2157 dated 22.12.2014.
Cava, Dielectric materials for applications in microwave communications, J.
Khirouni, High dielectric constant and relaxor behavior in La0.5Sr0.25Na0.05Mn0.8Ti0.2O3 manganite, Journal of Alloys and compounds. 767 (2018) 456-463

Investigation background Mechanical properties of materials are their inherent properties.
However, the size dependence of strength in elastic-plastic materials is an uncertain factor for design work.
Experimental materials To study fly ash and polypropylene fiber on the influence of concrete size effect, the research conducted four groups, concrete mix proportions show in Table 1.
Department of Civil Engineering and Materials Science, Northwestern University, Evanston, IL 60208 Contributed by Zdenek P.Bazant, April 4, 2006. www.pnas.org/cgi/doi/10.1073/pnas.0602684103
Journal of structural engineering, January, 2002

Experiment Raw materials and experimental method.
The molar ratio of CaO/SiO2 present in the starting materials was 1.7.
Silicate science. 2010, 38( 4) : 754-761
Journal of Materials Research, 14, 8 3379 - 3387
Chemistry of Materials, 11, 16-19

The solder ball was modeled with Multilinear Isotropic (MISO) hardening model, while the other components were treated like linear elastic materials.
The figure indicates that the application of shear loads to a multi-phase structure results in the formation of a singularity phenomenon, i.e. a stress concentration, at the corner of the common boundary of two different materials [4].
Choi: Journal of Electronic Materials Vol. 31 (2002), p. 1292
Jung: Materials Science and Engineering A Vol. 371 (2004), p. 267
Liao: Materials Science and Engineering A Vol. 358 (2003), p. 134.

As a consequence, effort must be made to mechanically characterise those materials as accurately as possible.
The classical approach in experimental mechanics of materials does not account for such phenomena in a correct manner and must be revisited.
Billon: Applied Mechanics and Materials Vols. 3-4 (2005), p. 363 [2] N.
Billon: Applied Mechanics and Materials; Advances in Experimental Mechanics Vols. 24-25 (2010), p. 419 [4] A.
Guignon: Material Science and Engineering A Vol. 405 (2005), p. 266 [6] E.

Test profiles Test materials Use P.O42.5 ordinary Portland cement, spherical shale ceramsite is mixture particle size, natural river sand, and bulk density is 1570 kg / m3, which belongs to middle sand, II size.
Experimental design Experimental equipment: JYS-2000 digital display type building materials pressure test machine Mix design: experimental materials are as described above, in order to study on the difference of water cement ratio’s influence on shale ceramsite concrete strength, use pre-wetting treatment for 24h to eliminate the influence of aggregate ceramsite absorbing water, use six different water cement ratio of 0.30,0.33,0.36,0.4,0.45 and 0.5, aggregate are mixed size which are between10 and 26mm, each casting 9 standard cubes with its size of 150mm * 150mm * 150mm, maintain 7,28,56 days in standard condition. specific mixture ratios are shown in table 1.
Journal of building materials.(2004), in7 volumes
[5]Yang, Weijun; Yang, Yongda; Yang, Yi: Experimental study on frost resistance of the shale ceramsite concrete, Applied Mechanics and Materials, v 117-119, p 1754-1758,( 2012)
Advanced Materials Research, v 374-377, p1434-1437, (2012).

School Of Materials Science And Engineering, Tsinghua University, Beijing 100084, China a chengr@tsinghua.edu.cn Keywords: Semi-rigid foam;Polyurethane;Polyether polyols;Isocyanate index Abstract:Semi-rigid polyurethane foam to soften the instrument panel has a lightweight, impact and energy absorption performance, while improving the texture of the surface of the instrument panel.
With the rapid development of polyurethane materials automotive and electronics industries to make their applications continue to expand.
Experimental materials and equipment .
Polyether polyols 330N, 3630, isocyanates MDI, Sanya ethylene diamine, stannous octoate (Yi-polymer materials Co., Ltd.) triethanolamine Jiahua Chemical Co., deionized water (laboratory-made) Experimental design According to a large number of literature references and projections, prepared a sample recipe trial foaming.
Reference [1] Lee C S, Ooi T L, Chuah C H, et al.Journal of the American Oil Chemists' Society Vol.84(2007),p. 1161

Experimental 2.1 Raw materials The cement used is commercially available normal Portland cement from Huaxin cement factory in china.
The specific characteristics of raw materials are shown in Table 1.
Construction and Building Materials, 2013(38):1204-1210
Research of polyocarboxy acid water-reducer with modified polyether and its effect on concrete's workability [J].Advanced Materials Research, 2011, 250:2032-2035
Cement Science and Concrete Technology, 1999(53):7-12

Introduction In 1992, Mobil (R & D) scientists disclosed synthesis of a new family of mesoporous molecular sieve materials known as M41S.
Materials and Methods Si-MCM-41 was synthesized at 100 oC for 8-days as reported earlier [8].
A hybrid material is developed exhibiting amine groups in its structural framework.
Pan, CO2 adsorption properties and thermal stability of different amine-impregnated MCM-41 materials, J.
Yusup, Effect of polyethylenimine loading on the physicochemical properties of amine-functionalized Si-MCM-41, Malaysian Journal of Microscopy, 8 (2012) 22-27