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Efficiency of protective funds (EPF): this indicator reflects the expenditure of funds annually for the protection of facilities, materials, patrol
Chinese Journal of Applied Ecology 20(2009), p.1739–1746(in Chinese)
Bio-Science 53(2003), p.819–822
Journal of Rural Ecological Environment Vol. 10(1994), p.6–9(in Chinese)
Journal of Rural Ecological Environment Vol. 21(2005), p.73–75(in Chinese)

Materials and Methods The activated sludge used as initial seed was taken from a local municipal wastewater treatment plant in Harbin, China.
Ogada, Sewage sludge combustion, Progress in energy and combustion science. 25 (1999) 55-116
Liu, Modeling of energy spilling in substrate-sufficient cultures, Journal of Environmental Engineering, 125 (1999) 508-513
Liu, Modeling of Energy Spilling in Substrate-Sufficient Cultures, Journal of Environmental Engineering. 126 (2000) 979-980
, Water Science and Technology. 38 (1998) 137-144

Figure 3 Classification map of comprehensive total score of various cities in Henan province Acknowledgements The authors acknowledge the National Natural Science Foundation of China (Grant: 0000009), the National Natural Science Foundation of China (Grant: 000000005).
[2] LIU Huijuan,WANG Dongsheng,YUAN Baoling.Sustainable water environment and water use:a perspective on water resource utilization[J].Journal of Environmental Sciences,2016,50(12):1-2
[3] HONG YANG, FLOWER R J, THOMPSON J R.Sustaining China's water resources[J].Science,2013,339(6116):141-142
Journal of Cleaner Production, 2013, 53 (16): 158－166
[11] LEE B G, LEE K.Environmental Sustainability Assessment Based on the Concept of Carbon Carrying Capacity[J].Applied Mechanics & Materials,2013,284-287:1511-1517

The changing of material directly affects the design and manufacturing process.
The maximum thermal stress reaches 455Mpa, exceeding the material strength limit, which causes plastic deformation.
For the shortage of the mechanical properties of the material under high temperature, a fatigue analysis should be proceeded to verify whether the exhaust manifold meets the design requirements.
Zhou: Automobile Technology & Material, Vol. 06 (2006) No.02, p.25.
Fu: Journal of Hefei University of Technology, Vol. 32 (2009) No.zl, p.175.

Their advantage in terms of cost effectiveness and material saving is outlined.
After very heavy cold reduction and strain ageing, this alloy has the distinction of achieving the highest combination of strength and toughness of all materials available currently.
For example in sugar industry materials of construction encounter wear and corrosion.
,Ohio,1986,107-116 [13] W.G.Renshaw and R.A.Lula, Proc ASTM, vol 56, 1956, 866-889 [14] V.Shankar Rao & L.K,Singhal, Corrosion-The Journal of Science & Engineering, NACE, Aug 2010, Vol.66, No.8,0850041-49 [15] S.Hochstrasser-Kurz, P.Gumpel,Arlt, 6th European Stainless Steel Conference, Helsinki June 2008,Jernkontoret, 81-86 [16] V.Shankar Rao & L.K.Singhal, Stainless Steel World, Vol-21, Jan-Feb 2009, 61-65 [17] A.Condylis, F.Bayon, A.Desestret, Revue de Metallurgie, May 1970, 427-442 [18] M.G.Fontana, Corrosion Engineering, McGraw-Hill,New York, 1986,172 [19] A.Devasenapathi, G.S.Ramakrishna& V.S.Raja, Journal of Materials Science Letters vol 14,1995,1254-55 [20] R.A.Lula, High Manganese High Nitrogen AusteniticSteels ASM Int.1992, 1-12 [21] Nippon Steel Brochure (Grade NAR 200, 201, 202) [22] Kawasaki Steel Brochure (Grade R304Mn, 201, 202) [23] Allegheny Data Sheet (Grades201 HP, 201LN) [24] A.K.Steel Data Sheet (Grade 201) [25] L.K.Singhal, 8th International
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Journal of Manufacturing Science and Engineering. 2005, 127
Journal of Donghua University, 2013, 269-275
Experimental Thermal and Fluid Science. 2002, 26(8): 871-878
Journal of Wuhan University of Science and Technology, 2010, (3): 307-309
JOURNAL OF TSINGHUA UNIVERSITY, 1999, 39 (8): 108-111.

The materials used for this study were PLA and ABS, being the most used materials in FDM, and BVOH, as a support material.
However, not all the materials are compatible with BVOH support material due to the different properties of the materials; so it is important to check with the filament provider if the main material of the model is compatible with the BVOH.
Macromolecular materials and engineering. 2018 Apr 1;303(3):1700484
Advances in Materials Science and Engineering, 2018
Journal of Stom- atology, Oral and Maxillofacial Surgery, 122(4), 355-360

This contribution firstly presents results gathered during the development of a lightweight multifunctional trailer made of composite material.
Further simulation processes displayed the behaviour at different geometries, materials and setups.
At the moment these are evaluated using the methodology of material input per service unit (MIPS) [15].
Oreskes, Beyond the Ivory Tower: The Scientific Consensus on Climate Change, in Science 306 (5702): 1686, 2004.[6] F.
Duray et al., Approaches to mass customization: configurations and empirical validation, Journal of Operations Management, p. 605-625, 2000

State Key Laboratory of Materials Processing and Die & Mould Technology , Huazhong University of Science and Technology, Wuhan,430074,China; 3.
With respect to analytical computation, select 22MnB5 sheet with thickness of 1.8 mm and material model 106.
Engineering Science, 2009,11(9):20-27
Plasticity Engineering Journal,2009,16(4):39-43
Journal of Materials Processing Technology,2010.7.19：2-3

Classification bases Category 1 mining process blasting mining; conventional mining, fully mechanized mining 2 coal seam dip angle nearly horizontal; slightly inclined; inclined 3 mining method along strike longwall; inclined longwall 4 remaining roadway sections small section (<8m2); big section (> 8m2) 5 materials of side filling wall concentrated props; gangue; high-water material; aggregate reinforced concrete 6 location of side filling wall in-situ; semi-in-situ;inside roadway 7 initial support of roadway passive support(steel rib); active support t(rock bolting) 8 layout of gas drainage gas drainage befor mining; gas drainage in remaining roadway; 9 Y-type ventilation system single end tunnel; dirty wind back to an adjacent faces cut and actual mining roadway; Dirty wind back to the border return air rise entry; dirty wind back to an adjacent roof or floor of gas drainage roadway At the beginning of the century, Huainan coal mining area entered the stage of deep mining as a whole
Mining Science and Technology, 2006, 34(1): 8-11.
Chinese journal of rock mechanics and engineering, 24(16): 2803-2814.
Science and technology daily, 2008-05-23(4).
Journal of CUMT Mining Science and Technology, 2003, 32 (4): 343-347.