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Paulo Davim, Optimization of Surface Roughness in Micromilling, Materials and Manufacturing Processes. 25(2010) 1115-1119
Yang, A study on roughness of the micro-end-milled surface produced by a miniatured machine tool, Journal of Materials Processing Technology. 162-163 (2005) 702-708
[6] Ki Yong Lee, Myeong Chang Kang, Yung Ho Jeong, Simulation of surface roughness and profile in high-speed end milling, Journal of Materials Processing Technology. 113( 2001) 410-415
Lartigue, Surface topography in ball end milling process: Description of a 3D surface roughness parameter, Journal of materials processing technology.195(2008) 135-143
[11] Fangyu Peng, Zhenglong Fang, Jing Wu, Rong Yan, Simulation of surface topography based on points cloud in ultraprecision milling, Journal of Huazhong University of Science and Technology(2012 ).

In additional, the lightweight structural structure of EPS materials that has low density, and high strength and good performance of energy absorption in collision, which make it an ideal material for motorcycle helmets cushion.
Document [10] studied hard lining materials of the pilot helmet from the view of molding process and wearing comfort, trying to use semi-rigid self-skinning polyurethane foam to completely replace traditional polystyrene foam as helmet hard lining.
Chinese Journal of Geotechnical Engineering.1993(2):104-108
Journal of Electric Power.2000 (4): 257-260
[10] Zhang Guangcheng,Zhang Mingqi,Jiang Haibin.Study on Polyurethane Foam Used in Hard Liner of Helmet.Aerospace Materials and Technology. 2001(5): 39

To overcome this problem, heterostructure MOSFET with other semiconducting materials to increase the layer density and carried mobility are required.
However, there are limitation in the choice of materials compatible with Silicon (Si) technology.
Chahdi, Performance evaluation of nanoscale halo dual-material double gate SiGe MOSFET using 2-D numerical simulation, Materials Today: Proceedings 20 (2020) 348-355
Paul, Si/SiGe heterostructures: from material and physics to devices and circuits, Semiconductor Science and Technology 19(10) (2004) R75-R108
Nawal, Impact of Strain or Ge Content on the Threshold Voltage of Nanoscale Strained-Si/SiGe Bulk MOSFETs, IEEE Transactions on Device and Materials Reliability 7(1) (2007) 181-187

Acknowledgments This work was financially supported by the National Natural Science Foundation of China under Grant nos. 21076161, 50802062, and 50872091 and Tianjin Key Discipline of Materials Physics and Chemistry under Grant no. 10SYSYJC28100.
Materials Research Bulletin 47.6 (2012): 1412-1416
Luminescence and luminescent materials.
Journal of The Electrochemical Society, 1971, 118(3): 477-482
Journal of the American Ceramic Society 95.12 (2012): 3871-3877.

The most suitable materials for prilling are those who melt without decomposition and preferably have high melting point to permit the use of ambient air for cooling.
Materials and Methods There are significant attempts to model and predict the behavior of flow structure in perforated rotating bucket.
Urea melt is used as a model material.
Journal of Applied Sciences, accepted (2013)
Friestad, Means for feeding fluid materials to a prilling bucket.

Materials and methods Experimental instruments AC211S electronic balance, a PHS-3C precise pH meter , a DL-102 electric blast drying oven and a HZQ-C air bath oscillator.
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The real-time tracing of manufacture resource information The production resources contain mechanical processing equipments and the corresponding materials of equipments.
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Chinese Journal of Mechanical Engineering. 2008，44(5):48-50
Journal of Xi'an Jiaotong University, 2009,43(11):56-60
Journal of System Simulation,2008,20(14):3828-3832.

It can be less material to obtain larger sectional resistance moment.
Pier of the main materials for the C40 concrete, elastic modulus E = 32500 MPa, concrete unit weight γ=25kN/m3, and poisson's ratio of concrete μ=0.167[12].
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Journal of Tongji University (NATURAL SCIENCE EDITION), 2007,35 (3): 315-320 [11] Zhang Hang.
Huazhong university of science and technology, 2010 [12] Qiu Shundong.

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Wisnom, “Experimental investigation of progressive damage and the effect of layup in notched tensile tests,” Journal of Composite Materials, vol. 40, no. 2, pp. 119–141, 2006
[4] ——, “Numerical investigation of progressive damage and the effect of layup in notched tensile tests,” Journal of Composite Materials, vol. 40, no. 14, pp. 1229–1245, 2006
Soutis, “Scaling effects in notched composites,” Journal of Composite Materials, vol. 44, no. 2, pp. 195–210, 2010
Wisnom, “Computational modeling of complex failure mechanisms in laminates,” Journal of Composite Materials, vol. 46, no. 5, pp. 603–623, 2012
Nairn, “Matrix microcracking in composites,” Comprehensive Composite Materials, vol. 2, no. 12, pp. 403–432, 2000