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Development of Water Quality Criteria In order to protect the water environment, various countries had invested a lot of manpower and material resources to carry out WQC study systematically.
Research of Environmental Sciences, 10(2010)1221-1228
Asian Journal of Ecotoxicology, 66 (2011)617-628
South-to North Water Transfers and Water Science & Technology, 105(2012)108-113
Chinese Journal of Pesticide Science, 155(2013)479-489

The first approach to reduce acid attack of the cement was the development of acid-resistant materials.
Density values and specific volume of the used materials are listed in Table 1.
Density values and specific volume of the used materials.
Martinelli, Addition of Polyurethane to Portland Cement, Materials Science Forum, Advanced Powder Technology IV, 498 - 499 (2005) 401-406
Pinto, Portland Cement Polyurethane Composites for Cementing Oilwell, Materials Science Forum, Advanced Powder Technology VI, 591-593 (2008) 423-429

[14] Sun Jianzhong, Wu Zizhao, Study on evaluation method of exudation of phase transition working substance for building material, New Building Materials. 31 (2004) 43-46
[15] Sun Yuezhi, Xi Guoxi, Yang Wenjie, et al, Preparation and study on paraffin/modified kieselguhr composite PCM, New Chemical Materials. 38 (2010) 46-48
[16] Wu Cheping, Peng Jiahui, Zhai Jindong, et al, Investigation on preparation and properties of a novel gypsum-based thermal insulation mortar, Materials Review. 25 (2011) 121-124, 127
[18] Li Yamei, Peng Jiahui, Xu Chuntao, Influence of polypropylene fiber on performance of anti-crack mortar for exterior thermal insulation system, New Building Materials. 35 (2008) 81-84
[19] Wang Hongli, Li Kai, Wang Jian, et al, Thermal properties testing of compound PCM of inorganic salts suitable for greenhouse, Journal of Northwest A & F University (Natural Science Edition). 36(3) (2008) 141-144.

Experimental Procedures In this work, niobium powder- Nb7 was acquired from Cabot Performance Materials, Boyertown, PA.
Wojcik: Materials Research Symposium Proceedings, Materials Research Society, Pittsburgh, PA, 1994, vol. 322, pp. 519-530. 3 B.
Hanada: Journal of Alloys and Compounds, 2002, vol. 333, pp. 170-178. 5 R.
Hatherly: Recrystallization and Related Annealing Phenomena, 1995, Elsevier Science, Oxford. 9 M.
Massalski et al.:, "Binary Alloy Phase Diagrams", 2 ed., 1990, ASM International, Materials Park, OH. 12 F.

Introduction For manufacturing enterprises, production capacity can be defined as: production enterprises of all fixed assets can be able to type a certain quality of products or raw materials maximum number, during a given period, certain technical, organizational conditions, and the overall balance of the production or processing.
The construction method process of production capacity evaluation indicator system According to the literature material, some relevant indicators can be represented to production capacity.
Table.2.Assess audition indicator set Criterion layer Index level Clustering K-W Sig CV Y/N Index level Clustering K-W Sig CV Y/N Product output capacity Product quantity 1 0.316 Y Product delivery rate 4 0.16 0.129 Y Product varieties 2 0.228 Y The amount of qualified products 5 0.254 Y Unit finished time 3 0.257 Y The amount of discarded products 5 0.154 N Resources into capabilities Proficiency of staff 1 0.43 0.162 Y Raw material inputs 3 0.39 0.256 Y Staff attitude 1 0.063 N Raw material input time 3 0.248 Y Staff attendance 1 0.230 Y Number of varieties of raw materials 3 0.159 N Personnel 1 0.276 Y Raw material quality 3 0.241 Y Personnel quality 1 0.148 N Inventory of raw materials 3 0.159 N Collaboration among employees 1 0.026 N Transport of raw materials 3 0.124 N The number of devices 2 0.48 0.358 Y Effective production area 4 0.24 0.254 Y Machining precision 2 0.164 N Light visual state 4 0.012 N Spindle speed 2 0.168 N Noise state 4 0.048 N Machine tool cutting speed
References [1] Aihua Fang, Guangming Zhang: Production and Operations Management (Wuhan University Press, China 2005) (in Chinese) [2] Hegen Xiong, Zhiyuan Wu and Jianjun Li: submitted to Science in Practice and Theory (2006) (in Chinese) [3] Yexiang Fang: submitted to Forecast (2003) (in Chinese) [4] Jiang Du, Yan Cao, Yu Bai: submitted to Journal of Xi'an Technological University (2006) (in Chinese) [5] Mohafiqul, Kader Md.
Source: submitted to JSME International Journal (2007) [6] Tsai Wen-Hsien, Lai Chien-Wen, in: Computers and Operations Research (2007)

Experimental Program Materials (1).
The water to cementitious material ratio (w/cm) ranged from 0.30 to 0.50, and the blast furnace slag content ranged from 0% to 75% by weight of the total cementitious materials as cement replacement.
Seara-Paz, Effect of recycled coarse aggregate on damage of recycled concrete, Materials and Structures 44 (10) (2011) 1759-1771
Ryou, Durability of recycled aggregate concrete using pozzolanic materials, Waste Management 28 (6) (2008) 993-999
Mukharjee, Development of sustainable concrete using recycled coarse aggregate and ground granulated blast furnace slag, Construction and Building Materials 159 (2018) 417-430

Introduction More and more important role in properties of flame retardancy of polymeric materials has been realized with further and gradual studied in flame resistant material [1] .
Experiment The Raw Materials and Reagents.
Engaged in the preparation of materials research.
An overview of flame retardancy of polymeric materials:application, technology, and future directions[J].
Advances in Materials Physics and Chemistry, Mexico D.

Wen 2 1 Department of Materials Engineering, Sun Moon University, Asan, ChungNam, 336-708, Korea 2 Institute of Metal Research, Academia Sinica, Shenyang 110016, China Keywords: Aluminum Nano-Film, Electromagnetic Response, Size Effect.
Unusual properties and performances have been obtained with such nanostructured materials.
Meanwhile, electromagnetic compatibility (EMC) of overall quality of nanostructured materials, devices and systems becomes a more and more serious question with decreasing size and increasing working frequency of electronic systems.
The abnormal behavior of the dependence of carrier density and plasma frequency with the film thickness in nanometer range brings a vast possibility for materials designing of nanostructured materials.
Chuang: Journal of Magnetism and Magnetic Materials Vol. 126(1993), p.200

Experimental materials In this paper,5A06-O aluminium alloy supplied by the the southwest aluminum (group) co., LTD. is adopted, which sheet thickness 2.0mm, the chemical composition of the alloy shown the table below.
With the increase of temperature, strain rate sensitivity index increased first and then decreased.When T = 400℃, the m value of 0.39, the strongest materials uniform deformation ability.
Journal of mechanical engineering, 2012, 13
Beijing: science press, 2012
Journal of plastic engineering, 2013, 20 (1) : 43-47.

.: FEOFS2003-198 FRACTURE AND CRACK GROWTH RESISTANCE BEHAVIOUR OF -TITANIUM ALUMINIDE A N Kumar1 Materials Science Group, Department of Applied Mechanics Indian Institute of Technology, New Delhi-110016, India Keywords: Intermetallics, Toughness, Lamellar, Duplex, R-curve, Fracture mechanism, Deformation ABSTRACT Research activities on deformation and fracture characteristics of the Ti-Al intermetallics have assumed considerable significance in view of many potential applications as high temperature structural materials.
In materials exhibiting brittle behavior, the crack is believed to initiate around the load maxima (Pmax.) and so the fracture initiation toughness values are determined at this point.
Y.W.Kim, Journal of Metals, 46, (1994) p. 30 3.
K.Ichikawa and Y.Kinoshita, Materials Trans, JIM, 6 (1996) p. 1311 7.
B.Dogan, P.A.Beaven and R.Wagner, International Conf. on Processing, Properties and Applications of Metallic and Ceramic Materials, Birmingham, (1992) p. 429. 10.