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Classification of Automobile Lubricant by Near-Infrared Spectroscopy Combined with Machine Classification Yun Zhao1,2,a, Xing Xu3,b, Yong He1,c,* 1College of Biosystems Engineering & Food Science, Zhejiang University, Hangzhou, China 2School of Information and Electronic Engineering, Zhejiang University of Science & Technology, Hangzhou, China 3School of Mechanical & Automotive Engineering, Zhejiang University of Science & Technology, Hangzhou, China azy_super0201@163.com, bxuxing3220@163.com, cyhe@zju.edu.cn *Corresponding author Keywords: near-infrared spectroscopy, automobile lubricant, partial least square, least squares-support vector machine, Gaussian processes classification Abstract.
Materials Sample Preparation and Spectral Measurement.
Acknowledgment This study was supported by the National Science and Technology Support Program of China (Project No. 2006BAD10A0711), Natural Science Foundation of Zhejiang Province, China (Project No.Y107379) and Natural Science Foundation of Zhejiang Province, China (Project No.Y6090718).
[2] Paradkar M M, Sivakesava S, Irudayaraj J: Rapid Determination of Swiss Cheese Composition by Fourier Transform Infrared/Attenuated Total Reflectance Spectroscopy, Journal of the science of food and agriculture, Vol. 82 (2002) p.497-504
[4] Liu Xian, Han Lu-Jia, Yang Zeng-Ling, Li Qiong-Fei: NIRS Method for Determination of Meat and Bone Meal Content in Ruminant Concentrates, Chinese Journal of Analytical Chemistry, Vol. 35 (2007) p.1285-1289

In particular, these IMCs drastically decrease the machinability of brass materials [12].
Vilarinho et al., Influence of the chemical composition on the machinability of brasses, Journal of Materials Processing Technology 170 (2005) 441–447
Cenzual, section editors; ASM International, Materials Park, OH, 44073, USA
A. et al., Compositional distributions in classical and lead-free brasses, Materials Characterization 57 (2006) 424–429
[12] Atsumi, H. et al., High-strength, lead-free machinable α - β duplex phase brass Cu–40Zn–Cr–Fe–Sn–Bi alloys, Materials Science and Engineering A 529 (2011) 275– 281

Theoretical analysis of the resistance of epilamated coatings of the tool under surface plastic deformation / Journal "Fundamental and Applied Problems of Engineering and Technology". - Oryol: OSU named after I.S.
Analysis of the shaping of internal profiles using computer modeling // Materials of the International Scientific Symposium of Mechanical Engineers (Rostov-on-Don, 26-28 September 2018). - 2018.- P. 123 - 126
Series: Materials Science and Engineering 709 (2020) 044077 IOP Publishing doi:10.1088/1757-899X/709/4/044077
Volume 329, 2020International Conference on Modern Trends in Manufacturing Technologies and Equipment: Mechanical Engineering and Materials Science (ICMTMTE 2020) https://doi.org/10.1051/matecconf/202032902006 [11] Mihail F Selemenev Experimental Studies of Deformation and Temperature Processes Mandrelling in the Deform-3D System / Mihail F Selemenev, Arkady A.
Selemeneva // Materials Science Forum Submitted: 2021-01-28 ISSN: 1662-9752, Vol. 1037, pp 357-368 Accepted: 2021-03-16 © 2021 Trans Tech Publications Ltd, Switzerland, 357 - 368

The kinds and qualities of raw materials, which has a total comes to 17 factors, has been considered as the independent variables.
The factors that affect concrete strength, according to the previous results, including use levels and quality indexes of all kinds of raw materials(Neville 1986)[1].
Table 1 Selected independent variables Raw material Selected KQI Raw material Selected KQI Cement 3-days compressive strength, 28-days compressive strength Coarse aggregate nominal maximum size, crush index, elongated particles Fly ash water demand ratio water reducer Air entraining content Slag 7-days activity index 28-days activity index water - Fine aggregate fineness modulus, silt content Rough sets method The rough set, firstly described by a Polish computer scientist Z.Pawlak, is a formal approximation of a crisp set (i.e., conventional set) in terms of a pair of sets which give the lower and the upper approximation of the original set.
Acknowledgements This work was financially supported by the Zhejiang Natural Science Foundation (Y5080022), china, and the technology fund of water resources department of Zhejiang province, china (RB1009).
Pawlak: International Journal of Computer Information and Science Vol. 5 (1982), p.341-356

Bi-coating effect of optical excitation When the whole resonator is made of two materials and must be analyzed as bi-layered structure, there are two main mechanisms that allow the resonance to be excited photo-thermally.
Based on the ‘Equivalent methods of parameters’ in vibration theory, the frequency of the micro resonators can be expressed as[4] (5) Where K0 is a coefficient related to the parameters of such a bi-material micro resonator, which is (6) Theoretical amplitude of bi-layered micro resonator When the whole resonator is made of two materials and must be analyzed as bi-layered structure, there are two main mechanisms in optical excitation.
Relative property parameters of materials The material Density ρ kg·m-3 Young's Modulus E 1011·N·m-2 Thermal conductivity λ w·m-1k-1 Thermal expansion coefficient α 10-6·k-1 Specific heat C J·kg-1·k-1 Sio2(fiber) 2200 0.70 1.3 0.4 840 Cr(coating) 7100 0.25 96.5 8.5 438 Fig.4 Simulation of frequency and the temperature CONCLUSIONS In this paper, the theoretical models of frequency and amplitude for bi-layered micro resonator were setup and temperature sensing character was simulated by computer software.
ACKNOWLEDGEMENTS This paper was supported by Zhejiang Province Physics Experimental Teaching Demonstration Center, Key research program for science and technology development of Zhejiang Province (No. 2010C11068) and Natural Science Foundation of Zhejiang Province of China (No.
Journal of the Optical Society of America B, 2002,19(9): 2191～2202

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Accordingly, ZnO as the photoelectrode used in DSCs, has been a hot research topic in energy materials.
Zn (NO3)2·6(H2O) and CO(NH2)2 as the raw materials, were mixed and stirred for 30 min according to a certain proportion.
Morphology is one of the most important factors that affect the properties of the materials.
Grätzel: Science Vol. 334 (2011), p. 629 [4] D.
Luo: Journal of Xinyu university Vol. 17(6) (2012), p. 1

However, molten aluminum alloys easily react with container materials.
Experimental Raw materials.
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The Cutting Parameter Affecting to Surface Roughness in Single-point Diamond Turning Hao Wang1, a, Yu Zhang1,b,Qiming Xie2,c 1CIMS Applied Research Center, Kunming University of Science and Technology ,Kunming, P.R.China 2Yunnan KIRO-CH Photonics Co.
The surface roughness of the machined surfaces was examined by a contact type measurement system, Form Talysurf PGI 1250A (Taylor Hobson Ltd.) as illustrated in fig.2,respectively.And the material was Ge single crystal as illustrated in fig.3.The radius of the section was 20mm.The spindle speed is 1200r/min,and the turning direction is from the outer edge to the center of the circle.The cutting parameters changed at every 10mm as illustrated in fig.4.
And ultra-precision machining of the surface roughness has reached the nanometer level, germanium crystal optical lens surface roughness at 3 ~ 8nm, the accuracy at 3 × 10-6 or less, so we should keep the room temperature at 20 ℃,because it is good for the quality of processing materials.
[4] Huang bo,Zhu Hua-sheng,Journal of South China Normal University.(2)(1995)89.

Kim: Materials Science Forum Vol. 638-642 (2010), pp. 3313-3318
Poliak: Materials Science Forum, 2005, vol. 500-501, pp. 195-202
Poliak: Materials Science Forum Vol. 500-501 (2005), pp. 187-194
Tacke: Materials Science Forum Vol. 500-501 (2005), pp. 387-394
Golombek: Journal of Achievements in Materials and Manufacturing Engineering (2011) in press.