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Brief of eddy current principle The key section of the paper is eddy current.
δ=1σμoμrf (1) Where δ= Standard Depth of penetration [mm], σ= Material electric conductivity [Ω/mm2], μo= Absolute permeability, μr= Relative permeability, f= Frequency.
The implementation of this system can improve the efficiency of checking the safety of rails and it has some practical engineering values and economic benefits.
SIBCON 2009, p.290-295 (2009) [2] Chen, Xiao-lei; Xiu-lin Wang: The design of testing system based on eddy current technology Mechanic Automation and Control Engineering (MACE), p. 811 – 814 (2011) [3] Nomura, N.; Aoyagi, Y.; Sekine, Y.: 1 [GHz] high frequency Colpitts oscillator, Frequency Control Symposium and Exposition.

These materials have higher hardness, better wear resistance, and considerably lower friction coefficients when compared to metal analogous [1].
Willmann, Improving bearing surfaces of artificial joints, Advanced Engineering Materials, 3.3 (2001) 135-141
Cheng, Wear behavior of UHMWPE sliding on artificial hip arthroplasty materials, Materials chemistry and physics, 88.1 (2004) 9-16
Puppulin, On the molecular interaction between femoral heads and polyethylene liners in artificial hip joints: phenomenology and molecular scale phenomena, Biomedical Materials, 12.1 (2016) 015005
Kajdas, General Approach to Mechanochemistry and Its Relation to Tribochemistry, Tribology in engineering, InTech, 2013.

International Journal of Engineering Science 38 (2000) 1759-1788
Mechanics of Materials 146 (2020) [7] ISO 12004-2, 2008.
Metallic Materials-Sheet and Strip-Determination of Forming Limits.
Mechanics of Materials 132 (2019) 47-56 [10] M.P.
Key Engineering Materials 926 (2022) 710-716

Due to their small size and high surface area to volume ratio, nanomaterials have a different UV blocking capacity from bulk materials [15].
Materials and Methods 2.1 Plant identification With the help of taxonomist we examined the plant and collect key parts (leaves, flowers and fruits).
Materials had reflection maxima at 77 degrees of glancing angle.
The materials' nanocrystalline structure was suggested by the large reflection peaks.
Availability of the Data and Materials There is no data availability for the reproduction.

Design for the Manufacture of a Video Game Controller Applying Emotional Design Óscar López Pérez1,a, Alfonso González González1,b, Francisco Javier, Álvarez García1,c, David Rodriguez Salgado2,d, and José Fernando Vázquez Pons1,e 1Mechanical, Energy and Materials Engineering / University of Extremadura, Mérida, Spain 2Mechanical, Energy and Materials Engineering / University of Extremadura, Badajoz, Spain aoscar@unex.es, bagg@unex.es, cfjag@unex.es, ddrs@unex.es, ejvazquezn@alumnos.unex.es, Keywords: Emotional Design, Digital Manufacturing, Sustainability, Ergonomic.
Journal of Engineering Design, 24(10):738–764, 2013
Advances in the human side of service engineering.
Computers & Industrial Engineering, 60(4):760– 768, 2011
Computers & Industrial Engineering, 120:401–417, 2018

Research on mining method of submarine natural gas hydrates based on a double-channel lift pump Yicong Zeng1, 2, a, Hailiang Xu1, b, Wanrong Wu 1, c and Bo Wu1, d 1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China 2 School of Electronic Information Engineering, Changsha Social Work College, Changsha 410004, China azengyicong@yahoo.com.cn, bcsuxhliang @yahoo.com.cn, ccsuwwrong @yahoo.com.cn, dcsuwubo @yahoo.com.cn Keywords: Mining method, Submarine natural gas hydrates, Double-channel lift pump, Deep sea.
Acknowledgements We express our gratitude to State Key Laboratory of High Performance Complex Manufacturing of Central South University for providing research condition and thanks to all members who help our field studies.
[5] Ricaurte and Marvin：Industrial and Engineering Chemistry Research, Vol. 51(2012) No.7, p. 3157
Youdif and E D Sloan: SPE Reservoir Engineering, Vol. 6(1991), p. 452
Lang, et al: Advanced Materials Research, Vol. 433-440(2012), p. 215

Effects of Surface Forces on Pure Squeeze Elastohydrodynamic Lubrication Motion of Circular Contacts with Coated Layer Li-Ming Chu1, a, Wang-Long Li2, b,*, Qie-Da Chen2, b, Chi-Chen Yu2, b, Chi-Yang Yeh3, c 1Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, Tainan City 71005, Taiwan, R.O.C. 2Department of Materials Science and Engineering, National Cheng Kung University, Tainan city 70101, Taiwan, R.O.C. 3Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung City 84001, Taiwan, R.O.C.
TFL is indispensable as a basis of key technology in high technology devices and ultra-precision machines.
ASME Journal of Basic Engineering, 1963; 601-606

Research for RBF Neural Networks Modeling Accuracy of Determining the Basis Function Center Based on Clustering Methods Jianmin Zhu1, a, Peng Du1,b and Tingting Fu1,c 1College of Machanical Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China ajmzhu6688@163.com, brobotroc@sina.com, ctingljay@163.com Keywords: RBF Neural Networks, K-means Clustering, Grey Relational Clustering, Fuzzy Clustering, Radial Basis Function Center, Modeling Accuracy.
In addition, the key factor to network’s performance is not the form of the nonlinear function employed by hidden layer node but the selection of basis function center.
Fung: Neural Networks Vol.9 (1996), p.1597 [3] Jixiang Du: Applied Mathematics and Computation Vol.205 (2008), p.908 [4] Amarnath, M.V: Journal of Engineering Manufacture Vol.233 (2009), p.1575 [5] Yongcheng Sun: Computer Simulation Vol.?
Liu: Computational Materials Science Vol.37 (2006), p.454 [8] Zakrani, Abdelali, Idri, Ali: International Review on Computers and Software Vol.5 (2010), p.516 [9] Roh Seok-Beom: Neurocomputing Vol.73 (2010), p.2464 [10] Bonian Li: Fuzzy Mathematics and Applications (Hefei University of Technology Press, Hefei 2007) .
(In Chinese) [13] Jianmin Zhu: Optical Precision Engineering Vol.8 (2000), p.68 (In Chinese) [14] Xiuling Zhang: Industrial Instrumentation & Automation Vol.3 (2009), p.32 (In Chinese) [15] Ghorbani A, Ghasemi M.R: Journal of Mechanical Engineering Science Vol.255 (2011), p.163 [16] Kagoda Paulo: Physics and Chemistry of the Earth Vol.35 (2010), p.571 [17] Roh Seok-Beom: Fuzzy Sets and Systems Vol.161 (2010), p.1803

Study on energy distribution of single-hole blasting vibration signal based on wavelet packet transform Dongtao Li1, a, Lixin Xu1, b, Yuanyuan Sun2, c, Qiurui Jia2, d and Jinglong Yan1, e 1School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China 2Department of operation command, Aviation University of Air Force, Changchun, 130022, China adong-tao-2008@163.com, blxxu@bit.edu.cn, cyuanyuansun@126.com, djiaqiurui@yahoo.com eyanjinglong@263.net Keywords: Blasting vibration, Energy distribution, Wavelet packet, Band energy, Single-hole blasting.
Therefore, the key is to select the optimal basis from various wavelet bases according to the requirements of the signal analysis.
Due to the natural frequency of the building is generally in the range of 0~10Hz, in the actual engineering blasting, great importance must be attached to the buildings (structure) distant from the explosion source, in order to avoid the formation of resonance.
In Chinese [5] Shi X Z, Chen S R: Soil Dynamics and Earthquake Engineering Vol. 31 (2011), p. 1054 [6] Kim D S, Lee J S: Soil Dynamics and Earthquake Engineering.
Vol. 19 (2000) p. 115 [7] Li D T, Yan J L, Zhang L: Applied Mechanics and Materials Vol. 170-173 (2012), p.1414 [8] Shi X Z, Lin D N, Chen S R: Explosion and Shock Waves Vol. 29 (2009) p. 401.

PHASE FIELD CALCULATIONS WITH CVM FREE ENERGY WITHIN SQUARE APPROXIMATION Tetsuo MOHRI1, a, Nao FUJIHASHI1,b and Ying CHEN 2,c 1 Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University Kita-13 Nishi-8, Kita-ku Sapporo 060-8628, JAPAN 2 Department of Quantum Engineering and System Science, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan a tmohri@eng.hokudai.ac.jp, cying@q.t.u-tokyo.ac.jp Keywords: Cluster Variation Method, Phase Field Method, ordered domain, square approximation Abstract.
The key to the method is the capability of incorporating wide range of atomic correlations which play essential roles in the accurate determination of transition temperature and the order of the transition.