Search results

Ultrasmooth Polishing with Sub-angstrom Roughness on Fused Silica Surface Junlin Wang State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Dong Nanhu Road,Changchun,Jilin Province, 130033, China wangjl@ciomp.ac.cn Keywords：Fused Silica.
The results indicate that: CNC micro-jet polishing can process the surface without scratching or cracking, bring no damage to the surface and realize atomic level material removal.
Journal of Crystal Growth.
Float Polishing of Optical Materials.
Beijing: Science Press(2001)

Introduction With the development of social economy, material and energy consumption increases rapidly.
Wear is one of the important causes of material failure and can lead to huge economic loss.
Experimental Material and Methods The chemical composition and microstructures of five different types of high strength steels were summarized in Table 1.
Acknowledgement The authors are grateful to the National Natural Science Foundation of China (Grant Nos.51271035 and 51371032) for funding this work.
Journal of Xi'an Highway University, 2000(03): 93-97

Skull defect repair has come to consensus that it is in urgent needing to get appropriate materials and fast, accurate and prosthesis manufacturing method for skull defect repair [1].
Titanium alloy, because of its good biocompatibility, non-toxic features, has become the preferred material for the skull prosthesis.
The material of bottom support die was made of wood, Fig.10 shows the bottom support die.
Acknowledgment This work is supported by National Natural Science Foundation of China, No.50175034.
Wang: International Journal of Machine Tools and Manufacture, Vol. 49 (2009), p. 625-633 [5] J.

Effect of Strain Rate on Tensile Properties of Miniature Size Specimens of Several Lead-free Alloys Ikuo Shohji1, a and Yuichiro Toyama1 1 Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, 376-8515, Japan a shohji@gunma-u.ac.jp Keywords: Lead-free alloy, Tensile properties, Strain rate, Miniature size specimen Abstract.
Due to sudden price jump of bare Ag, the material cost of Ag becomes to occupy approximately the half of that in Sn-Ag-Cu solder.
Sn-1Ag-0.7Cu (SAC107) was the basic material and small amounts of Bi and In were added into SAC107 as shown in Table 1.
Hioki, Journal of Materials Science: Materials in Electronics, 15 (2004) 219-223

Materials and methods Membrane Materials and Chemicals.
Poly(vinylidenefluoride-co-hexafluoro-pro-pylene) (solef 1015, Mw 573000, Mw/Mn 2.4) was used as membrane materials.
The bench-scale experiments were performed using a dead end filtration unit with SCM300 filtration unit (Shanghai Mosu Science Equipment co., LTD).
Acknowledgements This work was financially supported by Natural Science Foundation of Shandong Province of China (ZR2011EL045), Promotive Research Fund for Excellent Young and Middle-aged Scientist of Shandong Province (BS2011HZ003), The Doctoral Program Fundation of Jinan University (XBS1105) and The Doctoral Program Fundation of Jinan University(XBS1104).
Ismail: Chemical Engineering Journal Vol. 165 (2010), p. 980 [9] G.

Introduction The service life and durability of concrete structures are strongly depended on its material transport properties, such as permeability, strength, and diffusivity which are controlled by the microstructural characteristics [1].
Experimental Raw materials.
[5] Ilker Bekir Topc and Mustafa Sarıdemir: Prediction of compressive strength of concrete containing fly ash using artificial neural networks and fuzzy logic, Computational Materials Science, Vol.41 (2008), pp.305–311
[6] Chen Shi-chun and Wang Wen-an: Experimental study on whole stress-strain curve of concrete under axial tension, Journal of Yangtze River Scientific Research Institute, Vol.6(2001), pp.26-28
Sanna: Effect of pore size distribution on strength of hardened cement pastes, Proceedings of the First International RILEM Congress on Pore Structure and Material Properties, Paris, (1987), pp.195-202.

Introduction One of the most pressing questions in space science is whether life has ever arisen anywhere else in the universe.
Therefore, the practical drilled formation is restricted to stable subsurface materials such as ice or ice-cemented grounds, where the probability of finding life would be highest.
Proc., of the 14th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, International Society for Optics and Photonics, 65290S. (2007) [3] Bao, X., Bar-Cohen, Y., Chang, Z., Dolgin, B.
Chang, “Subsurface Sampler and Sensors Platform Using the Ultrasonic/Sonic Driller/Corer (USDC),” Paper #6529-18, SPIE Smart Structures and Materials Symposium, San Diego, CA, March 19-22, 2007 [5] Bar-Cohen, Y., and Zacny, K. (2009).
Stoker, Drilling Systems for Extraterrestrial Subsurface Exploration, Astrobiology Journal, Volume 8, Number 3, 2008, DOI: 10.1089/ast.2007.0179

Orthogonal Genetic Algorithm and Its Application in Traveling Salesman Problem Hanmin Liu1, 3,a, Qinghua Wu2,b and Xuesong Yan3,c 1Wuhan Institute of Ship Building Technology, Wuhan, China 2School of Computer Science and Engineering, Wu-Han Institute of Technology, Wuhan, China 3School of Computer Science, China University of Geosciences, Wuhan, China ayanxs1999@126.com, bwuqinghua@sina.com, cyanxs@cug.edu.cn Keywords: orthogonal genetic algorithm, local search, fitness function Abstract.
Acknowledgement This paper is supported by the Provincial Natural Science Foundation of Hubei, China (No. 2011CDB334), National Civil Aerospace Pre-research Project of China and Science Research Foundation of Wuhan Institute of Technology (No.12126011).
Wuhan University Journal of Natural Sciences 8(1B), (2003) 217-223
Applied Mechanics and Materials Vols. 121-126 (2012) pp 4528-4531.

The road network density and spatial dependence analysis based on basin scale —A case study on Shiyang River Basin WEI Wei1, a Peiji SHI 1, b Junju ZHOU 1, c Binbin XIE 2, d 1College of Geographical and Environment Science, Northwest Normal University, Lanzhou 730070, Gansu, China 2School of Urban Economics and Tourism Culture, Lanzhou City University, Lanzhou 730070, Gansu, Chinas aweiweigis2006@126.com, bShipj@nwnu.edu.cn, cZhoujj@nwnu.edu.cn,dXiebb@126.com Keywords: Road network density; Spatial dependence; Geographical information system; Shiyang River Basin Abstract.
Especially in arid inland river basin, the road network as the only material exchange with the basin in the outside world and the medium of information communication, and its social and economic development plays an important role.
Data material and processing The data of road has been modified and corrected based on the remote sensing images and topographical diagram, also based on the basis of the referred to diagram of China Highway and Urban-rural Public Road Chart Collection pressed by The Map Press of Shandong Province in 2009, which is of 1:1500000 scale data of the streets network of West Gansu, then these data and those latest streets from Google Earth are converted to shp documents by Global Mapper procedures, and then the Street System of Shiyang River Basin is formed full shape from the combination of those data and the road of the basin system on the collected map.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China, (No.41261104; No.41271133), the National Social Science Foundation Youth Project of China, (No.12CTJ001), Gansu Province Fund Projects of Youthful Science and Technology, (No.1107RJYA077).
Journal of Gansu Sciences,2004.032007:14-15(In Chinense)

Acknowledgements This work was supported by a grant from the NSF (Natural Science Foundation) of China (61105058), the NSF of China (61201423), and part by the Educational Commission of Hubei Province (Q20131108), P.
Proceedings of the 2nd ICMIA: International Conference Applied Mechanics and Materials (2013), p. 1129-1133
International Forum on Computer Science-Technology and Applications (2009), p. 97-99
International Conference on Computer Science and Information Technology (2008), p. 269-276
IEEE Journal of Selected Topics in Signal Processing Vol. 3 No. 1 (2009), p. 74-80