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These methods start with the derivatives of the eigenvalue and/or eigenvectors to changes in material and physical parameters.
Journal of Sound and Vibration, 292(2006), p.179-202
Journal of Sound and Vibration, 300(2007), p. 394-413
Journal of Sound and Vibration, 305(2007), p.298-307
AIAA Journal, 12(1974), p.185-190

Cheng: Journal of Sound and Vibration, Vol. 278 (2004), pp.1131-1146
Yang: International Journal of Mechanical Sciences, Vol. 47 (2005), pp.157-169 [3] S.
Naguleswaran: Journal of Sound and Vibration, Vol. 270 (2004), pp.1045-1055
Ohadt: Journal of Sound and Vibration, Vol. 236 (2000), No.3, pp.443-456
Fernandez-Saez: Journal of Sound and Vibration, Vol. 209 (2006), pp.640-653

The design and implementation of radiation mode sensors constructed by piezoelectric materials have been investigated by numerous authors [2–5].
Journal of the Acoustical Society of America 1993; 94(4): 2194 – 2204
Journal of Vibration and Acoustics 1999; 121: 446 – 452
Journal of Sound and Vibration 2001; 244(3): 395 – 405
Journal of Sound and Vibration 2001; 241(2): 297 – 314.

It also presents details on how to select materials about the device and how to design the software and hardware.
Material selection and circuit design of the training blanket The material selection of training blanket can directly affect its quality, the maximum pressure it can withstand, its operational life span and its training performance.
Influence of PVC material and product to environment and management method of PVC waste [J].Journal of Liaoning Technical University.2005
The wiring design of PCB and anti-jamming technology [J].Ship Science and Technology. 2006(2)
RS232 to RS485 Serial Interface Conversion Circuit and its Programme [J].Experiment Science & Technology. 2010(1)

In this stage, science and technology knowledge is acquired based on open up new application ways.
The technology based on scientific discovery and innovation, compared with traditional technology, not only to consume a lot of manpower, material and financial resources, but also has obvious characteristics of leading because of its mostly in the forefront of the contemporary science and technology.
The research work was supported by Academic Social Science and Humanities project of Ministry of Education of People’s Republic of China (No.10YJA630048), the National Natural Science Foundation of China(No.71173025), Jilin province science and technology development plan project(No.20120646), Jilin province philosophy and social science planning projects(No.2012BS19) and Changchun city science and technology development plan project(No.2012199).
[3] Zhang Xiaolin, WU Yuhua, Innovative value chain and analysis of efficient operation mechanism, Journal of Dalian University of Technology (Social Sciences), 9, pp. 23-26, 2005
[4] Huang Gang, Xu Jiuping, Li Ying, Science-Technology Value Chains and the Linking Models among Multiple Innovation Entities, China Soft Science, 6, pp. 67-75, 2006

The self-lubricating liner is the composite made of fabrics and resin, and its tribological property has been studied by numerous researchers, including the effect of composite materials and complex service conditions on it.
Experimental Works Materials and specimen preparation.
Fluctuation amplitude of COF of composite materials Due to the friction performance of composite material liners being influenced by three aspects, including the composite material itself, bearing service conditions and bearing manufacturing process, Fig. 6 summarizes the fluctuation amplitude of COF of liners studied in corresponding references under the above conditions.
Consequently, this impact should be considered when choosing the self-lubricating composite materials and designing the bearing in the beginning.
[18] Lewis R, Marshall M B, Dwyer-Joyce R S, Measurement of interface pressure in interference fits, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 219 (2005) 127-139.

Effect of Rare Earth Ce on the Growth of Primary Al13Fe4 Phase in Al-5Fe Alloy Liu Peng1,a, Zeng Yidan2,b*, Zhang Jin3,c 1,2,3School of Materials Science and Engineering, Inner Mongolia University of Technology, 010051 Hohhot, China a20181800228@imut.edu.cn, *bzyd@imut.edu.cn, c20181800243@imut.edu.cn Keywords: rapid cooling, Al-5Fe-xRE alloy, primary Al13Fe4 phase, Ce-rich Rare Earth, element enrichment.
Therefore, it has become a very competitive high-temperature lightweight structural material.
Experimental Procedures Industrial pure Al, Al-20wt %Fe and Al-10wt %Ce intermediate alloys are used as raw materials to prepare the Al-5Fe, Al-5Fe-0.9Ce and Al-5Fe-5Ce test alloy ingots with the size of φ30×100mm by vacuum induction melting.
Zhou, Research progress of Al-Fe alloy structure optimization and related mechanisms, Journal of Xihua University (Natural Science Edition). 06 (2017) 79-88
Li, Application of differential scanning calorimetry in metallic materials, physical testing and chemical analysis: Physics. 51 (2015) 618

Sekeloa Selatan I Bandung, 40132 Indonesia 2Research Center for Physics, Indonesian Institute of Sciences, Tangerang Selatan, 17530 Indonesia 3Research Unit for Clean Technology, Indonesian Institute of Sciences, Jl.
Emulsion is one of the method in the application to produce PLGA and could be applied for the hydrophobic and hydrophilic medicine materials, either for i micro or nanoscale size.
PLGA-based nanoparticles: an overview of biomedical applications, Journal of Controlled Release. 161 (2012) 505-522
Tissue pH of developing periapical lesions in dogs, Journal of Endod. 9 (1983) 47-51
Ceramic micro-particles synthesised using emulsion and sol-gel technology: an investigation into the controlled release of encapsulants and the tailoring of micro-particle size, Journal of Sol Gel Science and Technology. 3 (2006) 85-90.

Introduction Metal-diamond composites, in which diamonds are embedded into metal bond matrices, are commonly used as tooling materials for the machining of brittle materials.
Duda: Soviet Journal of Superhard Material Vol. 8 (1986), p. 38 [5] T.
Tanaka: Journal of Materials Processing Technology Vol. 63 (1997), p. 175 [6] J.D.
Dwan: Materials Science and Technology Vol. 14 (1998), p. 896 [7] K.
Xu: Key Engineering Materials Vol. 202-203 (2001), p. 293

Fatty acid methyl ester(FAME),prepared by rapeseed oil as starting material with methanol by transesterification, the composition of FAME was detected by gas chromatograph-mass spectrometer (GC-MS).Trimethylolpropane(TMP) esters of fatty acids were synthesized by transesterifying FAME with TMP using zinc oxide as catalyst.
:Journal of Synthetic Lubrication.Vol.11(1994),No.3,p.189
[5] Hu Wenyun: Journal of Wuhan Polytechnic University.
,Vargas, RM:Journal of the Brazilian Chemical Society.Vol. 9 (1998), No.3, p.199
[7] Uosukainen E, Linko Y, Lamasa M, Tervakangas T and Linko T:Journal of Applied Science, Vol.7(2007),No.15,p.2011. ,