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By using ion implantation, extensive researches had been made in different materials including plant, animal and microorganism on different levels.
As a new technological way for crop variety improvement, the ion beam application has created a batch of new characteristic genotype materials.
Plant Research Institute of South China of Chinese Academy of Science repeated this test, has also obtained high frequency apomixes materials.
From 1990's, they have bred two varieties and a patch of fine genotype materials.
the Journal of Jiangsu Agricultural sciences, 2001, 4: 3·7 [19].

The achievements will lay solid foundation for the development of lithium adsorption materials.
These ion-sieve materials have so many advantages, such as good selectivity, low cost, large adsorption capacity and stable chemical constitution, which make them the most prospective green materials for the industry of lithium extraction[2,3].
Table 1 Experimental factors and levels factor A Li/Mn ratio of raw materials B addition of oxidant /ml C holding time /h level 1 2 3 3.5 4 4.5 60 95 115 12 18 24 Evaluation index: adsorption capacity of the adsorption materials Q (mg/g).
Moreover, the significance level of Li/Mn ratio of raw materials is 0.1.
References [1] Ting Chen, Shuyi Yan, Zihua Kang: Jounral of Salt and Chemical Industry, Vol. 36 (2007), p. 19 (In Chinese) [2] Kelleman D G, Gorshkov V S: Russian Journal of Electrochemisty, Vol. 37 (2001), p. 1227 [3] Koyanaka H, Matsubaya O, Koyanaka Y, et al: Journal of Electroanalytical Chemistry, Vol. 559 (2003), p. 77 [4] Chitrakar R, Kanoh H, Miyai Y, et a1: Ind Eng Chem Res, Vol. 40 (2001), p. 2054 [5] Kaitai Fang, Changxing Ma: Orthogonal and Uniform Experimental Design (Science Press, CHN 2001)

Materials and methods Materials.
Renganarayanan: Journal of Zhejiang University Science A (Science in Engineering), Vol. 7 (2006) No.11, p.1886
Fang: Journal of Function Materials, Vol. 8 (2009) No.40, p.1313
Wu: Chinese Journal of Materials Research, Vol. 24 (2010) No.3, p.330
LIU: Chinese Journal of Materials Research, Vol. 29 (2015) No.9, p.673

Multiscale Parameter Identification Method for Three Dimension Steady Heat Transfer Model of Composite Materials TangWei Liu1,2,3,a , HeHua Xu1,b , XueLin Qiu1,c , and XiaoBin Shi1,d 1CAS Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301,P.
China atwliu@ecit.cn, b xhhcn@scsio.ac.cn, c xlqiu@scsio.ac.cn, d xbshi@scsio.ac.cn Keywords: Multiscale Method, Parameter Identification, Three Dimension Heat Transfer Model, Composite Materials.
In this paper, for heat conductivity identification of three dimension steady heat transfer model of composite materials, a new hybrid Tikhonov regularization mixed multiscale finite-element method is present.
Method of Inverse Problem for Surface Heat Flux(in Chinese), Journal of Nanchang University(Natural Science), 29(3):261-265(2005) [12] HE Xinguang , REN Li, Adaptive multiscale finite element method for unsaturated flow in heterogeneous porous media I.
Numerical scheme(in Chinese), SHUILI XUEBAO, 40(1),38- 45(2009) [13] XUE Yu-qun, YE Shu-jun, XIE Chun-hong, ZHANG Yun, Application of multi-scale finite element method to simulation of groundwater flow(in Chinese), SHUILI XUEBAO,7,7-13(2004) [14] Aixiang Huang, TianXiao Zhou, Theories and Methods of Finite Element(I)(in Chinese), Science Press, Beijing, 164-167(2009) [15] Yu Changming, Numerical Analysis of Heat and Mass Transfer for Porous Materials(in Chinese), TsingHua University Press,Beijing(2011) [16] Curtis R.

Development of a phenolic resin-bonded CBN wheel for precision grinding of ferrous materials JianLin Chen 1,a, Long Wan2 1Key Laboratory of Regenerative Energy Electric-Technology of Hunan Province, Changsha University of Science & Technology, Changsha 410004, China; 2College of Materials Science & Engineering, Hunan University, Changsha 410082, China acjlinhunu@tom.com Key words: Cubic boron nitride; Grinding wheel; Ferrous material; Phenolic resin Abstract.
Furushiro, et al, Development of ultra-fine-grain binderless cBN tool for precision cutting of ferrous materials, Journal of Materials Processing Technology, 209 (2009) 5646-5652
Mills, High-speed grinding with CBN grinding wheel – applications and future technology, Journal of Materials Processing Technology 110 (2001) 78-88
[3] Xiaoping Li, A free-abrasive machining approach to dressing of resin-bonded CBN grinding wheels, Journal of Materials Processing Technology 48 (1995) 223-230
Isono, New development of a grinding wheel with resin cured by ultraviolet light, Journal of Materials Processing Technology 113 (2001) 385-391.

State parameter reflects the state of blast furnace operation; also focus on the conversion characteristics of the main materials and auxiliary materials.
Journal of University of Science and Technology Beijing,2001,23(4):305-307
Journal of Materials and Metallurgy, 2002,1(2):120-123 [5] ZHA Feng-wei, LIU Qi .
Journal of Natural Gas Science and Engineering, 2011,3 (4) 555-570
Journal of University of Science and Technology Liaoning, 2010,33(3):245-247.

Actually, quasi-brittle materials are heterogeneous.
Lattice cellular automata can be used to study the heterogeneity of quasi-brittle materials.
To divide materials into equivalent lattice model. 2.
Quasi-brittle materials such as rock, concrete and so on are usually in compression.
Zhou: International Journal of Rock Mechanics and Mining Sciences, Vol.41(2004), p. 452 [8] B.Q.

Mohapatra, “Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid-state reaction method,” Journal of Science: Advanced Materials and Devices, vol. 2, no. 1, pp. 59–68, Mar. 2017
Tamrakar, “Luminescence behavior of europium activated [4] strontium aluminate phosphors by solid-state reaction method,” Journal of Materials Science: Materials in Electronics, vol. 27, no. 4, pp. 3443–3455, Dec. 2015
Banishev, “Structure, luminescence and mechano-optical properties of strontium aluminate doped with europium and dysprosium ions,” IOP Conference Series: Materials Science and Engineering, vol. 812, p. 012007, May 2020
Takao, “A New Smart Damage Sensor Using Mechanoluminescence Material,” Materials Science Forum, vol. 675–677, pp. 1081–1084, Feb. 2011
Xu, “Visualization of Stress Distribution Using Smart Mechanoluminescence Sensor,” Materials Science Forum, vol. 614, pp. 169–174, Mar. 2009

The research on railway construction project materials supplier selection model Ai Min Li1,2, a, Guo Qing Wang 1,b, Jing Jing Zhang1,c 1 University of Chinese Academy of Sciences, BeiJing, 100049, China 2 China CREC Railway Electrification Bureau Group ayclam@263.net, bwgq94@ucas.ac.cn, czhangjingjing111@mails.ucas.ac.cn Keywords: Railway constructions, Materials procurement, The indicators of vendor selection, Supplier selection model.
The railway construction projects materials vendor selection indicators.
Journal of Supply Chain Management, (2)(1996)5-17
The Journal of Supply Chain Management, 38(4)(2002): 11-21
International journal of information and management sciences, 18(4)(2007):403-426

Materials Review(2011),25(2):125-130
Journal of Traumatic Surgery(2011),13(3):272-275
Materials Chemistry and Physics(2011),130(1):561-568
Journal of Peking University (2011),43(5):730-735
Journal of Xiamen University (2010),49(5):671-675