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This study therefore investigated on the Effect of Water Cement Ratio (WCR) on Strengths Characteristics of Concrete Produced with Recycled Iron and Steel Slag (RISS) Aggregate. 2.0 Materials and Methods 2.1 Materials The materials used for the study include fine aggregate (sharp sand), cement, water and coarse aggregate (granite and RISS).
Batching of materials was by weight and each specimen was cast in three layers; each layer was tampered 25 times with the tamping rod.
Tittle, “Use of Conditioned PFA as a fine aggregate component in concrete”, Materials and Structures, 33 (2000) (1): 38 – 42
Gulderen, Usage of Steel Slag in Concrete as Fine and / .or Coarse Aggregate, Indian Journal of Engineering and Materials Sciences. (2015) (22): 339-344
John, (2006), Materials for Civil and Construction Engineers, Pearson Education Inc. (2nd Ed.).

Experimental Materials.
Tetrabutyl titanate, bismuth nitrate, resorcinol, anhydrous ethanol (all of the materials are AR grade), P25 was sourced from Degussa chemistry company of Germany.
Acknowledgement Support for this work was provided by natural science research funds of Henan province Science and Technology Agency (NO. 092102310053) References [1] A.
Watanabe: Journal of Materials Science, Vol. 34 (1999), p.2569
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Homoepitaxial Growth on Si-Face (0001) On-Axis 4H-SiC Substrates Guo-Guo Yan1,a, Xing-Fang Liu1,b, Feng Zhang1,2,c*, Zhan-Wei Shen1,d, Wan-Shun Zhao1,e, Lei Wang1,f, Ying-Xin Cui3,g, Jun-Tao Li3,h and Guo-Sheng Sun1,2,i 1Key Laboratory of Semiconductor Material Sciences, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China 2College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China 3Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu, 610200, China aggyan@semi.ac.cn, bLiuxf@semi.ac.cn, cfzhang@semi.ac.cn, dshenzhanwei@semi.ac.cn, ezwshuke@semi.ac.cn, fwangl@semi.ac.cn, gcuiyingxin@mtrc.ac.cn, hlijuntao@mtrc.ac.cn, igshsun@semi.ac.cn * fzhang@semi.ac.cn Keywords: on-axis, SiC, chemical vapor deposition, homoepitaxial growth.
General epitaxial growth is performed on off-axis 4H-SiC(0001) substrates, which would raise the cost of materials and devices, reduce the performance and reliability of the device because of the basal plane dislocations reproduction[4, 5].
Acknowledgement This work is supported by Science Challenge Project (No.
Song, Fabrication of 4H-SiC n-channel IGBTs with ultra high blocking voltage, Journal of Semiconductors 39 (2018) 034005
Deviny, Impact of design and process variation on the fabrication of SiC diodes, Journal of Semiconductors 39 (2018) 114001

Thermo-sensitive Materials for the Time-Temperature Indicator Bin Wang1, a, Zhineng Ye1,a , Liuquan Ji1,a , Nianxi Hu2,b 1Department of quartermaster, Military School of Economics, Wuhan, 430035, China 2Rivers and Paper Engineering Research Center, Henan, 454950, China a1070wb@163.com, blxzhao@126.com Keywords: Thermo-sensitive paper, Time-temperature indicator, Time-temperature-gray.
Materials and Methods Materials.
Materials and Methods, by adding stearate zinc as lubricant to observe its impact to color-producing properties thermo-sensitive paper.
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Comprehensive Reviews in Food Science and Food Safety Vol. 7 (2008), p. 144 [5] S.

Engineering materials.
Shafigullina, Investigation of physical-mechanical and performance properties of glass fiber reinforced polyurethane materials used in the machine building industry, IOP Conference Series: Materials Science and Engineering, 240 (1) (2017) 012063
Seydibeyoğlu, Natural Fiber Reinforced Polyurethane Rigid Foam Journal of Science, 30(2) (2017) 97-109
Shafigullina, Investigation of UV resistance in polyurethane foam, Research journal of pharmaceutical and chemical science, 8(4) (2017) 373-378
Mohler, DSC on polymeric materials, NETZSCH, Annual for Science and Industry, 1 (1991) 93.

The Young’s modulus of the material and the stiffness of bearing are considered as random variables for a Monte Carlo simulation about the spindle system’s first nature frequency.
Journal of Mechanical Design, 1980, 102(4),793-803
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Journal of manufacturing science and engineering, 2004, 126(1): 159-68

“Developments to manufacture structural aeronautical parts in carbon fiber reinforced thermoplastic materials”, Journal of Materials Processing Technology, 143–144 (2003) 342-346
Series: Materials Science and Engineering, 270 (2017) 012021
“Study on Mechanical properties of synthetic fibers reinforced epoxy hybrid composites for automobile application“, Scholars International Journal of Chemistry and Materials Science, 5(10) (2022) 172-178
“Fiber alignment in directed carbon fiber preforms – A feasibility study” , Journal of Composite Materials, 43 (1) (2009) 57-74
“Flexural and impact behavior of carbon/basalt fibers hybrid laminates”, Journal of Composite Materials, 48 (2013) 1121-1130

Rohatgi, Materials Science and Engineering 582, 415-422 (2013) [3] L.
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Materials Science & Engineering A Structural Materials.

Thus, it can be possible to assess environmental impacts of building materials by using local data.
Identification of the Expert Panelists Panelists are selected from the environmental experts in the universities, government and building materials sector.
WFs are also evaluated separately according to the experts from the academia, government and building materials sector [Table 3].
Table 3 WFs for the academia, government and building materials sector Academia- Professors Government B.
Saaty, The Analytic Hierarchy Process: Planning, Priority Setting, Resource Allocation Journal, London: McGraw- Hill International Book Co (1980).