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The petrological parameters of materials of seal cutting The formation mechanism and mineral composition of materials.
The quantity of it directly relates to the quality of materials.
But from the point of science today, this method is eyeless and unpredictable.
Journal of Chengdu College of Geology, 12(2): 32~43
Journal of Lishui University, 2008.30(4):134~136.

Influence of composition on the corrosion of steel bar of reinforced geopolymer concrete Qing Wang1,2 a, Jing Da2,b ，Cunbao Zhang2.c, Zhaoyang Ding2,d,Zhitong Sui2,e 1 School of Materials & Metallurgy, Northeastern University, Shenyang, 110004, China 2 School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang, 110168,China.
Slag and metakaolin were chosen as raw materials and sodium silicate of low module as alkali activator to prepare geopolymer concrete.
Experiment Raw materials.
[2] M.Steveson: Journal of materials science, 2005,40,2023-2036
[5] Nanru Yang: Journal of the Chinese Ceramic Society, 1996, 24(2): 209-215

The recommended materials to make membrane separating equipment are polymers, as shown in Table 5 below.
About membrane, although cellulose acetate is more indicated because of it price, many materials offering better conditions have already studied.
Gabieri, Engineering evaluation of CO2 separation by membrane gas separation systems, Journal of Membrane Science, 454 (2014) 305-315
Hagg, Hollow fiber carbon membranes: Investigations for CO2 capture, Journal of Membrane Science, 378 (2011) 1-9
Han, Synthesis and CO2/N2 Gas Permeation Characteristics of ZSM-5 Zeolite Membranes, Microporus and Misoporus Materials, 85 (2005) 313-323

While the raw materials are selected, the fireproof coating and sand are chosen well, the sand box is designed according to the technology, pouring system is calculated, under the above operation strictly, such as air hole can be avoided.
(Nature Science Edition) ,2006, 34(11):19-21
Huazhong University of Science&Technology,2007
Applied Surface Science ,1999 ,139: 434-438
International Journal of Plant Engineering and Management,2006,11(4): 247-250.

ARPN Journal of Engineering and Applied Sciences, Vol. 8, n 8 August 2013, ISSN 1819-6608 [16] Corriere, F., Di Vincenzo, D., Guerrieri, M. 2013.
Applied Mechanics and Materials (Mechatronics, Applied Mechanics and Energy Engineering). vol. 394, p. 597-604, Trans Tech Publications, Switzerland, ISBN: 978-3-03785-832-5, ISSN: 1660-9336, ISSN web 1662-7482, Singapore, July 27-29, 2013, doi: 10.4028/www.scientific.net/AMM.394.597
ARPN Journal of Engineering and Applied Sciences, ISSN 1819-660, Vol. 8, n 8 August 2013 [19] F.
Applied Mechanics and Materials Vols. 260-261 (2013) pp 1167-1172, ISSN: 1662-7482, doi:10.4028/www.scientific.net/AMM.260-261.1167 [20] M.
ARPN Journal of Engineering and Applied Sciences, ISSN 1819-6608 Vol. 8, Issue 10, October 2013

When the dam filling material is soft clay(Es<100MPa), the wall stress sharp increasing, and far exceed the limit of concrete materials.
For different dam filling materials, the plastic wall has better applicability.
(3) The stress of rigid wall was sensitive to the deformation modulus of dam filling materials, the smaller the modulus of dam materials, the greater the wall stress.
Journal of Hydraulic Engineering, 1995 (11): 39-45.
Journal of Hydroelectric engineering, 2010,29(2): 197-203.

Natural zeolites are materials which, due to the peculiarities of their crystal structure and high adsorption and ion exchange properties, have wide prospects for use in technologies of adsorption purification of aquatic environments.
Therefore, the search for cheap materials for ion exchange wastewater treatment from ammonia nitrogen is an urgent environmental task.
Global Nest Journal, 18(1) (2018) 146–163
Series: Materials Science and Engineering, 708 (2019) 012035
J. of Colloid and Interface Science, 284 (2005) 408-415

At the some time, with the development of modern science technology, especially the development of new materials and applications, to vigorously promote the development of sports.
The development of modern science technology makes the tennis movement vigorously reform from tennis racket materials to quality assurance, to change the past racket’s sport properties, making modern tennis racket is more aggressive, but also increases the play of tennis players.
Journal of Suzhou University (Natural science edition) 3(8):127-129 [4] Liu.
H. (2009) Biomechanics principle of tennis service technique Journal of Beijing Sport University 4(3):413-417 [5] Wang.
Journal of sports adult education 7(1):743-745

The masks were processed by ultra-precision wire cutting machine with stainless steel material in order to prevent the volatilization of organic material from polluting vacuum chamber.
Jun: International Journal of Machine Tools & Manufacture, Vol. 47 (2007), pp.793-798
Li: Journal of the Electrochemical Society, Vol. 153(2006).
Deng: Journal of Dalian University of Technology, Vol. 41 (2001), No.3, pp.275-278.
Sun: ASME, Journal of Manufacturing Science and Engineering, Vol. 42 (2006), pp.206-211. ① a ③ a ② a ④ a

Hahn: International Journal of Pressure Vessels and Piping, Vol. 85, (2008), p. 38-46
Yamazaki: International Journal of Pressure Vessels and Piping, Vol. 83, (2006), p. 63-71
Saroja: Journal of Nuclear Materials, Vol. 312, (2003), p. 199-206
Onoro: Journal of Materials Porcessing Technology, Vol. 180, (2006), p. 137-142
Svensson: Applied surface science, Vol. 87/88, (1995), p. 200-206