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Materials and methods Preparation of solution samples In the study, all of the reagents were produced in China.
Yun, Journal of Environmental Sciences Vol. 188 (2002), p. 14-19
Nourmohammadian, Materials Research Bulletin Vol. 797 (2007), p. 42-49
Graetzel, Journal Physical Chemical Vol. 654 (1987), p. 91-100
Hoffmann, Environmental Science & Technology Vol. 494 (1991), p. 25-32

Journal of Wuhan University of Technology (Materials Science Edition). 2009, 24(4): 677-683
Journal of Materials Science Letters. 1993, 12(12): 898-901
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Advanced Materials Research. 2011, Vols. 150-151: 1369-1378
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Thinking about the available process paths from raw materials to finished products, there are different equipments, raw materials or semi-manufactured products to couple the material requirements planning with task accreditation planning, therefore, some model algorithms will not work or be hard to find the solution.
In the course of modelling, there is some hypothesis as following: (1)Provided that infinite materials, energy, information and manpower resource expect to export in the source point, while there is an infinite storage to store these materials, energy, and information and manpower resource
(2)Provided that intermediate points with no ability to store materials, energy and information, just play a role of transportation
The subset of Apex set VS ⊂ is supporting or selling materials, which is intituled as Source Points, nonnegative number iD indicates the supporting ability or selling ability of apex , Si ∈ , and nonnegative number ip indicates the bargain price of apex Si ∈ .
Foundation of China (58075190) and Key Laboratory of Metallurgical Equipment and Control of Ministry of Education in Wuhan University of Science and Technology (2009A08) .

In this experiment, Hydroxyapatite (HA) materials were made using natural source extraction process.
Acknowledgement The authors would like to acknowledge Centre of Advanced Manufacturing and Materials Processes (AMMP), University of Malaya, for providing their kind assistance on SEM/EDX analysis in this project.
Toque, The influence of sintering temperature on the properties of compacted bovine hydroxyapatite, Materials Science and Engineering C 29 (2009) 1674–1680
Castro, Hydroxyapatite-based materials of marine origin: A bioactivity and sintering study, Materials Science and Engineering C 51 (2015) 309–315
Ibrahim, Removal of lead ions using hydroxyapatite nano-material prepared from phosphogypsum waste, Journal of Saudi Chemical Society (2014)

Among the various ceramic or glass-based materials for high microwave transmission, fused silica ceramics and quartz glasses are rather important materials due to their excellent dielectric and thermal properties.
The advantages of the designed materials over the conventional materials were well established; the FSs based materials showed a stable transmission spectra against the variation of the incident angle and the materials were also able to broaden and tune the waveband for efficient transmission of the EM waves.
Jha: Computers, Materials and Continua Vol. 31[3] (2012), p. 201 [2] S.M.
Yahaghi: International Journal of RF and Microwave Computer-Aided Engineering Vol. 21[6] (2011), p. 665 [5] S.
Staude and G. von Freymann: Nature Materials Vol. 7.7 (2008), p. 543 [9] V.V.

Effect of Solution Treatment on Microstructures and Hardness of Mg-Gd-Y-Zr Alloy Quan-an LI1,2,a, Lei-lei CHEN1,b, Wen-chuang LIU1, Xing-yuan ZHANG1 and Hui-zhen JIANG1 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China 2Collaborative Innovation Center of Nonferrous Metals, Henan Province, Luoyang, 471023, China aemail:q-ali@163.com, bemail: cll19880623@163.com Keywords: Mg-Gd-Y-Zr alloy, solution treatment, microstructures, Vickers hardness.
Introduction Recently, there have been constantly increasing uses of light-weight and high-strength materials as structural materials in engineering applications such as automobile industry, 3C (Computer, Communication, Consumer Electronic) and electron industry [1,2].
Before the melting started, all the materials should be dried at 200°C for 1-2 hours.
[2] Aghion E, Bronfin B, Eliezer D, The role of the magnesium industry in protecting the environment, Journal of Materials Processing Technology. (117) 2001 381-385
[7] Yan Gao, Qudong Wang, Jinhai Gu, Yang Zhao and Yan Tong, Behavior of Mg–15Gd–5Y–0.5Zr alloy during solution heat treatment from 500 to 540 °C, Materials Science and Engineering A. (459) 2007 117-123

Table 11 Classification scores and strength parameters of structural planes in CSPC method Grade Description CSPC Strength parameters Friction angle(°) Cohesion(MPa) Ⅰ Excellent 80~100 >35 >0.20 Ⅱ Very good 60~80 35~27 0.20~0.11 Ⅲ Good 41~60 27~18 0.11~0.07 Ⅳ Poor 21~40 18~12 0.07~0.03 Ⅴ Bad 0~20 <12 <0.03 Verification of the CSPC Classification System A large amount of materials and descriptions of structural planes are collected and referred.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (51074042) and National Natural Science Foundation of China (51179031).
(in Chinese) [8] Guangzhong Sun: Rock mass structure mechanics (Science Press Publications, Beijing 1988).
Egger : submitted to Journal of Rock Mechanics and Mining Sciences, Vol.40, No.1 (2003), p.25
[14] Lin Zhu: submitted to Journal of Hunan Institute of Engineering, Vol.20, No.1 (2010), p.92.

Introduction Hard high speed machining (HHSM) is a new technology to cut high hardness materials under a high cutting speed.
J.Burns and M.A.Davies, International Journal of Plasticity Vol.18 (2002), p.487 [2] A.
Musquar and G.Sutter, International Journal of Plasticity.Vol.18 (2002), p.443 [3]J.D.
Chevrier and et.al, Materials Science and Engineering A Vol. 452-453 (2007), p.469 [4] C.E.
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Feldman, Synthetic fibre-reinforced concrete, Journal Progress in polymer science, volume 20, Issue 2, 1995, p. 185-210 [2] R.
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Baradan, A comparative study on the flexural performance of plasma treated polypropylene fibre reinforced cementitious composites, Journal of Materials Processing Technology, volume 209, 2009, p. 5133–5144 [12] C.
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Zahoranová, Diffuse Coplanar Surface Barrier Discharge and its applications for in-line processing of low-added-value materials, The European Physical Journal Applied Physics 47, 2009,p. 1-6 [15] M.

The paper discuss ash curve of λ, the cumulative non-magnetic materials β and the magnetic susceptibility curve χ.
Select S-curve to build cumulative model of non-magnetic materials [12].
Simulating of washability curve of pulverized coal[J].Journal of coal science &engineering distribution curve,vol 2(1996)
Journal of coal science &engineering distribution curve(1996)
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