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According to type of material, organic, metal, and inorganic material board are used in PCB.
Kashani: Journal of Materials Processing Ttechnology Vol. 213 (2013), pp.1095-1102 [3] J.W.
Jung: Journal of Materials Science, Materials in Electronics Vol. 23 (2012), pp.41-47 [4] J.G.
Jung: Journal of the Microelectronics and Packaging Society, Vol. 18 (2011) pp.63-67 [5] M.
Rudramoorthy: Journal Ultrasonics Vol. 53 (2013), pp.763-772 [6] M.G.

Materials and Technology External Insulation Materials Shanghai Case.
The nanophase materials were used in it’s outer wall materials, which can guarantee the automatically cleaning effectiveness during rainy days; meanwhile block 98% of photothermal radiation into the building can be blocked.
Recycled Architectural Materials Shanghai Case.
[5] Chanjiao Guo, Jian Liu: Henan Building Materials Vol.1(2008) :p24-25,in Chinese
[6] Xue Ming: Journal of Chongqin Architectural University Vol.26(2004) :p 61-66,in Chinese

Macromolecular Materials and Engineering. 298(1) (2013). 9-32
Journal of Materials Chemistry. 15(7) (2005). 735-738
Journal of Materials Processing Technology. 167(2–3) (2005). 283-293
Journal of Applied Polymer Science. 102(2) (2006). 1023-1029
Advanced Materials. 15(22) (2003). 1929-1932

Journal of Membrane Science, 2000, 169:215-228
Journal of Membrane Science, 1995, 106:233-234
Journal of Membrane Science, 2009, 340:192-205
Journal of Membrane Science, 2008, 311(1-2):12-22
J., Gao K.W. et al, Fractal in Material Science.

Top-down formation of GaN nanocone arrays for application in field emission Xinzhong Wang1,a, Guanghui Yu2,b, Shiguo Li1,c, Chengguo Wu3,d 1Department of Electronics and Communications Technology, Shenzhen Institute of Information Technology, Shenzhen, 518029, China 2State Key laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China 3College of Sciences, PLA University of Science and Technology, Nanjing, 210007, China axzwang868@163.com, bghyu@mail.sim.ac.cn, clishiguo2002@163.com, dwcg6828@sina.com Key words: nanocone; GaN; field emission; ICP Abstract: We present a novel method to fabricate uniform GaN nanocone arrays (GNA) using Nickel-nanoisland masks.
With the rapid progress in semiconductor process technology, GaN nanostructured materials with various morphologies have been successfully synthesized via different routines.
Contrary to the bottom-up synthesis, top-down etching process is an alternate way to achieve nanorod structures by removing the constituent elements from the original materials.
Nikolaev et al.: Science Vol. 269 (1995), p. 1550-1553
Zhu et al.: Materials.

Generally it is less than one for the metallic materials.
Microelectronics Reliability, 2007, 47(2): 347-353 [9] Huang, H; Jun, N; Jiang, MQ; et al., Nanosecond pulsed laser irradiation induced hierarchical micro/nanostructures on Zr-based metallic glass substrate, MATERIALS & DESIGN, 2016, 109: 153-161 [10] Naghshine, Babak B.; Cosman, James A.; Kiani, Amirkianoosh, Synthesis of polycaprolactone-titanium oxide multilayer films by nanosecond laser pulses and electrospinning technique for better implant fabrication, JOURNAL OF APPLIED PHYSICS, 2016, 120(8) [11] G.
Krack; Laser processing of hardmetals: Physical basics and applications,International Journal of Refractory Metals & Hard Materials, 2005, 23:278–286 [12] Colina, M.; Morales-Vilches, A.; Voz, C.; et al., Laser Induced Forward Transfer for front contact improvement in silicon heteroj unction solar cells, Symposium on Laser Interaction with Advaned Materials: Fundamentals and Applications, FRANCE: 2014, APPLIED SURFACE SCIENCE, 2015, 336: 89-95 [13] Pong-Ryol, Jang; Tae-Sok, Jang; Nam-Chol, Kim; et al., Laser micro-polishing for metallic surface using UV nano-second pulse laser and CW laser, INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2016, 85(9-12): 2367-2375 [14] J M Liu, Simple technique for measurements of pulsed Gaussian-beam spot sizes, Optics Letters, 1982, 7(5): 196-198 [15] D.
S.; Philip, Reji; et al., Laser fluence dependence on emission dynamics of ultrafast laser induced copper plasma, JOURNAL OF APPLIED PHYSICS, 2016, 120(18) [17] Sobierajski, Ryszard; Jacyna, Iwanna; Dluzewski, Piotr; et al., Role of heat accumulation in the multi-shot damage of silicon irradiated with femtosecond XUV pulses at a 1 MHz repetition rate, OPTICS EXPRESS, 2016, 24(14): 15468-15477 [18] Douti, Dam-Be; Begou, Thomas; Lemarchand, Fabien; et al., Analysis of laser energy deposition leading to damage and ablation of HfO2 and Nb2O5 single layers submitted to 500 fs pulses at 1030 and 343 nm , APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2016, 122(7) [19] Hongo, Motoharu; Matsuo, Shigeki, Subnanosecond-laser-induced periodic surface structures on prescratched silicon substrate, APPLIED PHYSICS EXPRESS, 2016, 9(6) [20] Williams, E.; Brousseau, E.
B., Nanosecond laser processing of Zr41.2Ti13.8Cu12.5Ni10Be22.5 with single pulses, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2016, 232: 34-42 [21] Tseng, Shih-Feng; Hsiao, Wen-Tse; Chung, Chien-Kai; et al., Investigation the interaction between the pulsed ultraviolet laser beams and PEDOT:PSS/graphene composite films, APPLIED SURFACE SCIENCE, 2015, 356: 486-491 [22] Sun, Zhanliang; Lenzner, Matthias; Rudolph, Wolfgang, Generic incubation law for laser damage and ablation thresholds, JOURNAL OF APPLIED PHYSICS, 2015, 117(7) [23] Demir, Ali Goekhan; Pangovski, Krste; O'Neill, William; et al., Laser micromachining of TiN coatings with variable pulse durations and shapes in ns regime, SURFACE & COATINGS TECHNOLOGY, 2014, 258: 240-248 [24] Thi Trang Dai Huynh; Semmar, Nadjib, Dependence of ablation threshold and LIPSS formation on copper thin films by accumulative UV picosecond laser shots, APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2014, 116(3): 1429-1435

Introduction With the rapid industrial development, a variety of difficult to machine materials are used widely such as hard and brittle materials, high tenacity materials and high strength materials.
During using the method for machining, the materials can be etch mainly by means of the thermo-chemical effect.
To solve the problem of low efficiency in the precision machining of the transparent materials, Wang.
It can machine metal materials, brittle materials such as ceramics, and semiconductor materials,etc.
Willeke: Solar Energy Materials and Solar Cells.

Effect of indoor woodiness microenvironment on Female rats growth JiaLiu1, a, Xianchao Kong2, b, MinXu3, C, JianLi4, d 1,3,4 Key laboratory of bio-based material science and technology, ministry of education, Northeast forestry university,Harbin,150040,P.R.China 2Ph.
Li jian took a comparative study about the effect of different types of interior material on the physiologic index of mice growth, development and reproduction, obtained wood and woodiness materials have good regulation to physiological physiological character of organisms, was better than concrete and metal[2,3,4].
Materials and methods Materials of experiment.
References [1]Yu Haipeng,Liu Yixing and Liu Yingtao:Wood Environment Science Research Status and Development at Domestic and Abroad.
[6]Zhao Rongjun, Li Jian, Liu Yixing:Effect of Living Environment of Wood Material on Mammal Physiology Index.Journal Of Scientia Silvae Sinicae,vol.40(3)(2004), p.198-201 [7]Yasushi Hiramatsu, Yoshifumi Miyazaki:Effect of volatile matter from wood chips on the activity of house dust mites and on the sensory evaluation of humans.

Barker et al.[31] pointed out that low molecular weight materials were present in significant concentrations.
Journal of Membrane Science, 342(1), 88-96
Journal of Membrane Science, 463, 94-101
Journal of Membrane Science, 451, 169-176
Advanced Materials Research, 864, 1482-1485.

Contrast and computational analysis of entity load Material is a key factor which affects service life of rotor system; ANSYS software can simulate different kinds of material in engineering practice by changing attribute set of material.
Acknowledgements This work is supported by Aviation Science Fund Project（2009ZD56007）, Natural Science Foundation of Jiangxi Province (2008GZC0032).
Meng, R Gasch: ASME DE.Vibration of Rotoring System Vol.10 (1993), p.315 [3] K.H.Kim and J.H.Kim: Journal of Sound and Vibration Vol.233 (2000), p.119 [4] X.B.
(Nature Science Edition) Vol.33(2005), p.51.
(in Chinese ) [5] Bo-Wun Huang: International Journal of Mechanical Sciences Vol.48 (2006), p.1