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Grey Relational Analysis Based Taguchi Method for Optimization Design of the Drilling Parameters in PCB Drilling Process Teshome Mulatie Bogale1, a, Fang-Jung Shiou2, b * and Geo-Ry Tang3, c 1, 2, 3Department of Mechanical Engineering, National Taiwan University of Science and Technology, No.43, Sec.4, Keelung Rd., Da’an dist., Taipei 106, Taiwan, R.O.C.
Song, Wear mechanisms of micro-drills during dry high speed drilling of PCB, Journal of Materials Processing Technology, 212 (2012) 1989-1997
Patil, Image processing method to measure sugarcane leaf area, International Journal of Engineering Science and Technology (IJEST), (2011)
Deng, Introduction to grey system theory, The Journal of grey system, 1 (1989) 1-24
Chung, Grey relational analysis coupled with principal component analysis for optimization design of the cutting parameters in high-speed end milling, Journal of Materials Processing Technology, 209 (2009) 3808-3817

Moreover, in exceptional cases, such as the field test of landslide in some areas, shear strength test of weak plane and contact friction strength test of some materials, direct shear experiment may be the only feasible test.
Component of Dynamic Load Direct Shear Apparatus Dynamic load direct shear apparatus, as a complete set of work system, concluded dynamic loading system, vertical loading device, temperature and displacement test apparatus and DAS(data acquisition system).The apparatus was able to research the dynamic behaviors of the specimen and two different kinds of materials depend on various factors.
Northwestern Seismological Journal(in Chinese), 2004,25(3),220-224
Chinese Journal of Geotechnical Engineering(in Chinese), 2008,30(4)，595-599
Chinese Journal of Geotechnical Engineering(in Chinese), 2012,34(4)，774-780.

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Cannon: Composites Science and Technology, Vol.64, (2004) p.245
Stress analysis of fiber-reinforced composite materials.

Experiment Materials.
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Bio jet fuel has been proposed as a solution for the problem, processed from vegetable and renewable raw materials, and commonly produced by catalytic hydroprocessing.
The material of rice husk ash has amorphous shape, supported by SEM observation.
İçingür, Investigation of The Effects of Civil Aviation Fuel Jet A1 Blends on Diesel Engine Performance and Emission Characteristics, Indian Journal of Engineering & Material Science. 21 (2014) 200-206
Rong, Hydroprocessing of Jatropha Oil Over NiMoCe/Al2O3 Catalyst, International Journal of Hydrogen Energy.
Hotza, Rice husk ash as an alternate source for active silica production, Materials Letters 57 (2002) 818-821

Materials and Methods The materials and methods used are as shown in Figure 1.
The materials being used for electrolysis are carbon (electrode) and 9V battery for the power supply.
The Drainage Exchange of Stormwater Potential in Flat Area Problems, Journal of Environmental Science and Engineering, ISSN 1934-8932, Vol. 4 (10) : pp. 1-8
Carbon Material.
The Journal of Alternative and Complementary Medicine. 10(1): pp. 19-21.

Experiments Materials and Preparations The Partial Y2O3 stabilized ZrO2coatings are METCO powders using an atmospheric arc plasma system equipped with an F4 plasmatron (Sulzer Metco) onto Al-based alloy substrates with a length of 150mm, width of 100mm and thickness of 10mm.
Tricoire: Journal of the European Ceramic Society Vol.23 (2003), p.2993–2999
Huang: Materials Science and Engineering R 36 (2002), p.143–206 [6] Z.
Deng: Journal of Grey System, Vol.1 (2000) p.48-55
Hong: Materials Science and Engineering Vol.A415 (2006), p.149-155

With the development of high performance permanent magnet materials, permanent magnet synchronous generators (PMSGs) have attracted a strong interest of research[2,3], brushless generator technology has become much more mature, PMSGs possess a number of advantages such as high efficiency, high power-to-volume ratio, and high reliability.
� h i I I k = (3) ik --short circuit current multiple, hI --short circuit current, A �I --rated working current, A ik should be considered: the generator purposes and it's technical requirements; magnetic paths structure and characteristics of permanent magnetic materials; output voltage stability requirements.
If the generator is no stabilized power supply device, required output voltage stability when the load changes, should choose a larger ik , the ik greater the voltage stability better, but heavier weight generator, this subject we use electronic regulator, the ik value can be small, the design ik =2. 3.2 The rotor inner diameter Rotor inner-diameter 34 nnn n K V D λπ⋅= (4) Where nV --the volume of permanent magnetic materials, basing on the formula can calculate the volume of permanent magnetic materials.
Acknowledgment This research was supported by the Natural Science Foundation of Shandong Province, No: ZR2009FM047.
The Promising Future of Permanent Magnet Generator, Journal of Agricultural Mechanization Research, vol.2, p.47-49, Mac.2004

PCM-Based for Heat Storage in Solar-Thermal Converter NADHRAH Md Yatim1,2,a*, SITI RAHMAH Md Nizar3,b, MOHD AZMAN Hashim@Ismail4,5,c and SYAHIDA Suhaimi6,d 1,3,4,6Applied Physics Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia 2,4Frontier Materials Research Group (FMRG), Faculty of Science and Technology, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia anadhrah@usim.edu.my, brahmahnizar10@gmail.com, cm_azman@usim.edu.my, dsyahida@usim.edu.my Keywords: PCM, solar-thermal converter, paraffin, beeswax, TEG.
Thermal properties of both materials were measured using DSC and heat absorption were tested under real solar irradiation.
These thermal energies will be stored and keep by PCM materials to gives better performance and can be utilized in generating continuous electricity even the light source is absent.
[6] Sekar, S; Putra, N; Amin, M; and Afriyanti, The utilization of paraffin and beeswax as heat energy storage in infant incubator, Journal of Engineering and Applied Sciences 11(2) (2016) 800-804
Zerouli, Energy Storage: Applications and Challenges, Solar Energy Materials and Solar Cells 120 (2013) 59-80

The following sections highlight each stage of the thermal, microstructural and mechanical model assessment for both materials.
Computational Materials Science 2011;50:2203
International Journal of Solids and Structures 2012;49:1045
International Journal of Pressure Vessels and Piping 2014;120–121:93
Computational Materials Science 2012;54:125