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The article studies scientific approaches to the creation of biocompatible implant materials, considers their types, defines the basic requirements for biocompatible materials.
There are three groups of materials (Figure 1) Figure 1.
Therefore, modern science faces the task of developing these materials that can withstand the aggressive medium of the body, but at the same time guarantee a long service life and maintain the required qualities without negative responses in the body.
Implant materials and osteogenesis.
International Journal of Pharmaceutical Research. 2020; 12(4): 3454-3463.

The Capacities Evaluation of Oil Absorption Materials Dongming Wei a, Hongbo Zheng band Shushen Zhang Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China aemail:0325dongming@163.com bemail:dlhongbo@126.com Keywords: Oil absorption materials; capacities; comprehensive evaluation Abstract：Nowadays, more and more oil-absorbing materials are researched, but lacking of an effective index system to evaluate capacities of oil-absorbing materials.
At present, the common oil-absorbing materials are divided into three categories: natural mineral oil-absorbing materials, organic materials and synthetic polymer materials.
More and more oil absorption materials are collected, researched and developed.
On the other hand, how to deal with these oily materials[4].
Journal of Hazardous Materials, 2007(145):148–153 [3] Yuan Gao, Laihong Yan, Luwei Ying.

Zhang: Rare Metal Materials and Engineering Vol. 41 (2012), p. s581 [2] W.L.
You: Materials and Design Vol. 32 (2011), p. 3537 [5] S.
Bamberger: Journal of Material Science Vol. 42 (2007), p. 9983 [6] G.H.
Ma: Materials Science and Engineering A Vol. 381 (2004), p. 223 [9] S.L.
Zhang: Journal of Materials Processing Technology Vol. 214 (2014), p. 551

Characteristic Parameters of Dynamic Crack Growth Along the Interface Between the two Orthotropic Materials Jelena M.
Results provided in this paper can be used as a guide for micromechanical modeling of materials. 1.
For the orthotropic materials, for the planar problem, elastic constants are:
Explicit results presented in this paper can serve as guidelines for micromechanical modeling of materials.
Mechanics of materials" and ON174004 "Micromechanics criteria of damage and fracture".

Application of X-CT technology in the microstructure analysis of cement-based materials Ping Zhang 1,a, Honggen Qin 1,b, Keshu Wan 1,c, Chaoming Pang 1,d, Wei Sun 1,e, Weiling Zhou 2, f 1 School of Materials Science and Engineering, Southeast University, Jiangsu Key Laboratory of Civil Engineering Material, Nanjing, 211189, PR China 2 State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Academy of Builing Science Co., LTD., Nanjing 210008, China azhang-ping@seu.edu.cn, b qinhonggen@seu.edu.cn, ckeshuwan@seu.edu.cn, dpangchao@seu.edu.cn, esunwei@seu.edu.cn, fzhouweiling@cnjsjk.cn Key words: X-CT technology; Pore structure; Gray value; Cement-based materials Abstract: Based on the small density changes of each phases, the defects and morphology of cement-based materials can be observed with the X-ray computed tomography (X-CT).
The application of X-CT technology in the cement-based materials was reviewed in this paper.
Introduction Concrete is non homogeneous materials with complex micro and macro structure.
It can also provide evidence for the damage and deterioration study of cement-based materials by tracking observation and quantitative statistics.
Conclusions X-CT technology plays an important role in the microstructure analysis of cement-based materials.

Reseach on Distributed Material Requirements Planning Based on Distributed Decision Support Systems Yukui Sheng1, a, Wanlian Lan2,b 1 School of Traffic and Transportation Engineering，Changsha University of Science & Technology，ChangSha, China 2 School of Civil Engineering and Architecture, Changsha University of Science & Technology, ChangSha, China a shengyukui@sohu.com, b lan-wanlian@163.com Keywords: Distributed Material Requirements Planning.
Material Requirements Planning decompose the Master Production Schedule into parts production schedule and purchase schedule of raw materials and purchased parts according to specific features of products structure, and determine the date of production and completion and the date of purchase and warehousing of raw materials and purchased parts.
Master Production Schedule Material Requirements Planning Features of Products Stock Information Production Orders Purchase Orders Figure 1 Logic of Input ( Output ) of MRP 2.2 Advantage of Distributed Material Requirements Planning To controlling manufacture system of complex production process, it must inspect all essential materials which can or can not meet needs.
Science Press. (2004) [6] Mo Zan, Feng Shan, Tang Chao.
Journal of Systems Science and Systems Engineering, (2002) [7] Chengkong, Yangge.

Synthesis and electrical transport property of Sr and Cu-doped LaFeO3-based cathode material for IT-SOFC Jie Zhao 1,2 a, Jiang Fu 1 , Yong Fu 1, Yongchang Ma 1,3 1 School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China; 2 Key Laboratory of Display Materials and Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China; 3 Tianjin Key Lab for Photoelectric Materials and Devices, Tianjin 300384, China ; a vzhaoj @ tjut.edu.cn Keywords: Solid state reaction; LaFeO3-based cathode material; Perovskite structure;Electrical transport property;Thermal expansion coefficient Abstract.
In order to accelerate the commercialization of SOFCs technology, the key is the development of high performance cathode materials operated at intermediate temperature.
Therefore, development of high-performance cathode materials for IT-SOFC is critical to the commercial application of SOFC.
The Starting raw materials were La2O3, SrCO3, Fe2O3 and CuO with analytical grade.
Acknowledgments This research was supported by the National Natural Science Foundation of China（Grant No.10704054）and the National Undergraduate Innovation Training Programs（Grant No.201210060012） References [1] E Bucher, W Sitte, F Klauser, E Bertel: Solid State Ionics Vol. 208 (2012), p. 43 [2] Z P Shao, S M HAILE: Nature Vol. 431(2004), p.170 [3] J Zhao, C Li, L L Kong, Y C Ma, X W Wu: Journal of Rare Earth Vol. 29 (2011), p. 1066 [4] C J Zhu, X M Liu, D Xu, D T Yan, D Y Wang, W H Su: Solid State Ionics Vol. 179(2008), p.1470 [5] E D Wachsman, K T Lee: SCIENCE Vol. 334(2011), p.935 [6] M L Liu, M E Lynch, K Blinn: MATERIALS TODAY Vol. 14 (2011), p. 534 [7] C Li, J Zhao, L L Kong, Y C Ma: Applied Mechanics and Materials Vol. 130 (2011), p.1058 [8] X W Meng, S Q Lu, Y Ji, T Wei, Y L Zhang: Journal of Power Sources Vol. 183 (2008), p.581 [9] R H Liu, W H Ma: Rare Metal Vol. 31(2007), p.86 [10] K T Lee, A Manthiram: Journal of the Electrochemical Society Vol. 152(2005

Synthesis of lithium-ion battery cathode material LiFe0.95Mn0.05PO4/C using FeCl3 etching waste as iron source Guo guanghui1,a, Chen shan2,b, Liu fangfang3,c,Zhang liyu4,d 1Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology,Wuhan 430081,China 2Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology,Wuhan 430081,China 3Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology,Wuhan 430081,China 4Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology,Wuhan 430081,China aemail:disneyzhu@126.com, bemail:disneyzhu@163.com(corresponding author) , cemail:13628697232@163.com, demail:9407978332qq.com (Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology,Wuhan
The particle size is also important for electrochemical performance of materials.
Journal of the American Chemical Society, 2011, 133:2132-2135
Journal of Power Sources, 2009, 190(2):538-544
Electrochemical performance comparison of LiFePO4 supported by various carbon materials[J].

Introduction A crisis of confidence on the entire exterior thermal insulation industry has formed by the constant occurrence fire of the building's exterior wall thermal insulation materials and decoration materials.
At present, more than 80 percent of the building thermal insulation materials are organic combustible materials, such as EPS, XPS, PU and others.
Choice of Materials The choice of materials is the key to develop the building material which has thermal insulation and fireproofing double function.
Journal of Polymer Engineering, vol.25,2005(2)165-174
,Waitkus P.A. .Journal of Applied Polymer Science, vol.79,2001(3) 385- 395

In this research, an experimental technique for measuring the relative acoustic nonlinearity parameter of materials under tensile loading by using nonlinear Rayleigh surface waves was developed.
The z-axis points into the material half-space.
Acknowledgement Supports by the National Natural Science Foundation of China (11172034) and the Fundamental Research Funds for the Central Universities (2011JBM263) are acknowledged.
Savage: Journal of Applied Physics.
Collison: The Journal of the Acoustical Society of America.