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, dsitifatimahabdkarim93@gmail.com, enorhakimin@umk.edu.my, fanamt@umk.edu.my gmazlan.m@umk.edu.my, hzulhisyam.a@umk.edu.my and inoraina.adam@riken.jp Keywords: Radon sentinel 1030, α particles, Building materials, Health implications Abstract.
In addition, materials and ventilation of the building also contributes to the migration of 222Rn into indoor air (Pavia et al. 2003) [3].
Materials and Method Experimental set-up.
Zulkepli, A Study of radon-222 levels in foamed light concrete, Australian Journal of Basic and Applied Sciences, 7 (2013) 315-318
Hussin, Potential of fabricated light foamed concrete in reducing radon from building material, Materials Science Forum. 840 (2016) 427-431

The value of strain is negative in machined all of materials.
International Journal of Machine Tools & Manufacture. 48 (2008) 15–28
OURNAL OF AERONAUTICAL MATERIALS, 2007(6): 45-49
JOURNAL OF MECHANICAL ENGINEERING, 2012(11): 172-182
International Journal of Mechanical Sciences:47 (2005) 1611–1628.

A Novel Defogging Algorithm Based on Genetic Algorithm with Analysis of Scientific Data Materials Xiao-Guang Li1, a, Li Kang2, b 1Luoyang Institute of Science and Technology, Peoples R China 2Luoyang Institute of Science and Technology, Peoples R China aemail: lxg@lit.edu.cn, bemail:maxkang0000@sina.com Keywords: Defogging; Genetic Algorithm; Fitness Function; Scientific Materials Abstract：This paper proposes a novel defogging algorithm based on the improved model with analysis of scientific data materials.
The new algorithm based on improved model with analysis of scientific data materials Physical model based on improved atmosphere scatters came to realize the fog, needing quality image in meeting certain goals under the best parameters of model rule precision.
Conclusion Based on the characteristics of the depth image scene of atmospheric model distribution to expand the assumptions, and proposes an improved image contrast degradation of a unified model based on the improved model, presents a novel image restoration of fog drop mass by using the genetic algorithm with analysis of scientific data materials, which uses algorithm of the global search ability, will achieve the scene to fog problem into the optimal meaning in global contrast of primitive not under the optimum estimate of degraded images.
[3]Narasimhan SG, Nayar SK.Vision and the atmosphere [J].International Journal of Computer Vision, 2002, 48(3):233-254
[4]Chen Gong, Wang Tang, Zhou He-qin ,A Novel Physics-based Method for Restoration of Foggy Day Images[J],Journal of Image and Graphics,2007,13(5): 888-893

This has much to do with the properties of the roof materials and the way of roofing construction.
It is the important resource of new antibacterial materials in biology [2].
Colloids in seaweed increase the wholeness of the roof The French materials experts, P.
Russian Journal of Marine Biology, 2007, Vol. 33, No. 3, p204–206
Journal of Materials Science，2007,43,(13),p4805-4857

Application of Metal Powder Metallurgy Technology in Prepartion of Friction Materials of the Railway Vehicles SHANG Feng1,a ZHOU Hai-xia2,b QIAO Bin1,c Li Hua-qiang1,d and HE Yi-qiang1,e 1School of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang Jiangsu 222005, China 2College of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China ashf184518@163.com, b waihou295@163.com, cQiao6636@126.com, dlhq6729@163.com, eant210@126.com Key words：Powder metallurgy; Railway transport; Friction materials Abstract：With the speed up of the train, higher performance demands are put forward to the materials which have friction function.
(in Chinese) [2] H.X.Gao, J.X.Liu, R.M.Zhu: Journal of Materials Science and Engineering.
(in Chinese) [6] Y.Min, J.P.Ge, H.Zhao: China Science and Technology Information.
(in Chinese) [8] G.Q.Wang, J.C.Chen, J.L.Sun: Materials Review.
[10] Skai S , Suzuki H G, Mihara K: Materials Transactions.

The joining of the different materials can be effected using functionally graded materials.
Bonnet: Journal of Europen Ceramic Society.Vol.21(2001), P.2353
Nakahira: Journal Nuclear Materials.
Thoms: Acta materials.
Thoms: Acta Materials.

Hence these are regarded as difficult-to-cut materials.
Journal of Materials Processing Technology Vol 105, p 327-332
Materials Science and Engineering A, Vol 378, p 180-184
Beela Satyanarayan, 2010, A Prediction of Material removal rate for Aluminum BIS-24345 Alloy in wire-cut EDM, International Journal of Engineering Science and Technology Vol. 2 (12), 7729-7739 [18] S.
Materials and Manufacturing Processes, 23: 174-181, 2008 [19] A.

Investigation of the Effect of Vibration on the Bearing Capacity of Composite Materials Sergei Koryagin1,a, Oleg Sharkov1*,b and Nikolay Velikanov1,c 1Immanuel Kant Baltic Federal University, Kaliningrad, 236016, Russia askoryagin@kantiana.ru, bosharkov@kantiana.ru, cnvelikanov@kantiana.ru Keywords: polymer coatings, composite structures, vibration, strength, deformation.
One of the effective methods for reducing the effect of shock and vibration loads on the bearing capacity of mechanical structures is the use of structural elements made of composite materials [11, 14–18].
Materials and Methods Test bench.
References [1] Gvozdkova S I and Shvartsburg L E 2017 Procedia Engineering 206 958–964 [2] Dong R G, Welcome D E, Xu X S and McDowell T W 2020 International Journal of Industrial Ergonomics 77 102946 [3] Vieler H, Karim A and Lechler A 2017 Robotics and Computer-Integrated Manufacturing 47 117–122 [4] Dubrovskiy A, Aliukov S, Dubrovskiy S and Alyukov A 2017 Lecture Notes in Engineering and Computer Science 2 679–684 [5] Moheimani S O R, Halim D and Fleming A J 2003 Spatial Control of Vibration: Theory and Experiments (Singapore World Scientific Publishing) p 236 [6] Munoa J, Beudaert X, Erkorkmaz K, Iglesias A, Barrios A and Zatarain M 2015 CIRP Annals 64(1) 385–388 [7] Hosseinabadi A H H and Altintas Y 2014 CIRP Journal of Manufacturing Science and Technology 7(3) 246–257 [8] Guoa Z, Cao Y, Feng K, Guan H and Zhang T 2019 Mechanical Systems and Signal Processing 133 106271 [9] Duan P and Ding X 2015 Journal of University of Shanghai for Science and Technology 37(6) 583–588 [
10] Chen Y, Wu H, Zhai J, Chen H, Zhu Q and Han Q 2019 Aerospace Science and Technology 84 1049–1058 [11] Koryagin S I, Sharkov O V and Velikanov N L 2018 Materials Science Forum 938 46–53 [12] Limarga A M, Duong T L, Gregori G and Clarke D R 2007 Surface and Coatings Technology 202(4–7) 693–697 [13] Kirpichnikov V Y, Koshcheev A P and Syatkovskii A I 2020 Journal of Applied Mechanics and Technical Physics 61(6) 968–971 [14] Kulíšek V, Růžička M, Vrba P, Smolík J and Janota M 2019 Materials Today: Proceedings 12(2) 288–297 [15] Fantuzzi N, Bacciocchi M, Benedetti D and Agnelli J 2021 Composites Part C: Open Access 4 100096 [16] Bigdeli M and Monfared V 2021 International Journal of Engineering, Transactions B: Applications 34(2) 556–563 [17] Cao Y, Zuo D, Zhao Y, Cao Z, Zhi J, Zheng G and Tay T E 2021 Composite Structures 261 13565 [18] Yang M, Gui L, Hu Y, Ding G and Song C 2018 Results in Physics 8 1110–1118 [19] Thomson W T 1996 Theory of vibration with applications (Boca Raton

Prediction of Elastic Modulus of Cement-Based Materials Based on Power’s Volume Model Wu Lang1, a, Yan Bing1,b and Lei Bin2,c 1College of Civil Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China 2College of Civil Engineering, Nanchang Institure of Technology, Nanchang 330044, China awulang19812005@126.com, b ybjxnc@163.com, cBinglle@163.com Keywords: micromechanics; cement-based materials; volume Model; elastic properties Abstract.
According to reference [7]，the effective volume of the composite materials is,
Journal of Huazhong University of Science and Technology(Natural Science Edition), 2011,39(3):39-42.
Mang, A multiscale micromechanics model for the Autogenous-shrinkage deformation of early-age cement-based materials[J].
Computational Materials Science, 2010, 47(3):775-784

Kun Cheol Shin, introducted a failure criterion for anisotropic/isotropic bi-materials problem with a wedge.
But the process of obtaining the singular stress fields of anisotropic/isotropic bi-materials is complex.
The solid is composed of two materials, denoted by A and B, A-and B-materials are anisotropic and isotropic materials respectively.
The materials comprising the specimen are steel and glass fiber renforced epoxy composite material.
References [1] Kum Cheol Shin, Won Seock Kim, Jung Ju Lee, “Application of Stress intensity to design of anisotropic/isotropic bi-materials with a wedge” Internation Journal of Solids and Structures 44(2007) 7748-7766