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Problem Statement The construction industry consume a substantial amount of raw materials in the process.
The two major concerns on recycling are the economic viability and acceptability of recycled materials.
Typically, Tam and Tam (2005) found that from a purely economic point of view, recycled materials are only attractive when they are competitive with virgin materials in terms of cost and quality.
Interestingly, in contrast to a common sense, the cost of virgin material is actually cheaper than that of recycled materials (Tam and Tam, 2005).
Besides, the general public often worries about the quality of reused or recycled materials.

Workpiece materials and tools.
Their materials were YG8.
Rahim:Journal of Materials Processing Technology.
[4] Sridhar, B.: Journal of Materials Processing Technology.
Jawaid: Journal of Materials Processing Technology.

In this article, the chrome tanned cattle (pig) leather and unsaturated polyester resin or epoxy resin were used as raw materials, leather/resin composite material was prepared.
Before 1970 reports dominantly focused on uses not requiring extensive pretreatment of tanned wastes, including the manufacture insulators, building materials, fibrous sheets, and shoe soles.
It is an effective way for solid leather wastes treatment which combines the leather waste with other materials to form composite materials.
Experimental Section Raw materials.
Journal of Applied Polymer Science, 118 (2010) 446–451

Commonly used co-curing materials are viscoelastic materials ,such as rubber[6-8].
Journal of Sandwich Structures and Materials 15(2) 203-228
Journal of Materials Science and Engineering , 2005,23(4) 585-588
High Damping Composite Materials:Effect of Structural Hierarchy.Journal of Composite Materials,2002,36,3 273-296
Journal of Materials Science & Technology.2009,25(5) 708-712

Friedrich: Materials Science Forum Vol. 419-422 (2003), p. 51 [3] P.
Wang: Materials Science and Engineering A Vol. 372 (2004), p. 109 [6] Y.
Jiang: Materials Science and Engineering A Vol. 478 (2008), p. 9 [8] Q.B.
Gupta: Materials Science and Engineering A Vol.527 (2010), p. 1411 [9] M.
Abbasi: Materials Science and Engineering A Vol. 485 (2008), p. 210 [10] C.S.

A Novel Optimization Model for Location of Waste Transfer Stations Gao-Chang Zhao School of Science, Xi’an University of Science and Technology zhaogcxust@gmail.com Keywords: Optimization model, Location, Waste Transfer Stations, Two-step, NP-hard Abstract.
Currently, many approaches have been conducted on LP of general logistics Systems [7,8,10]. [11] studied the coordinate optimization problem of materials distribution and injured transportation in emergency rescue of natural disasters.
Journal of environmental engineering, 122(9):785–792, 1996
European Journal of Operational Research, 108(1):1–15, 1998
Journal Of Management Sciences in China,3(2):69–75, 2000

(In Chinese) ][[] Lehui Zhang, Zhihao Zhang, Shuhong Wang, et al, Experimental study and analysis on rock-socketed pile in karst area, China Civil Engineering Journal, 46(2013) 98-102.
The theoretical considerations, including rock strength characteristics, material properties, the size and other factors, it has a wide range of application at home and abroad[[] Jiahuan Qian, Zongze Yin, Geotechnical principles and calculation, seconded, China Conservancy & Electricity Press, Beijing, 1996.
Research on FEM simulation method for rock-socked pile bearing capacity in soft rock, Chinese Journal of Rock Mechanics and Engineering, 12(2002) 1854-1857.
The research described in this paper is supported by the National Science Foundation of China (Grant No. 51178116 and 51308113) and the Foundation Research Project of Jiangsu Province (The Science Fund No.
BK20130616) and Postgraduates’ Science and Innovation Foundation of Jiangsu Province (Grant No.

Science. 2011;334(6058):935-9
On the development of proton conducting materials for technological applications.
Journal of Materials Science. 2001;36(5):1149-60 [9] Haile SM, West DL, Campbell J.
Journal of Materials Research. 1998;13(06):1576-95
Journal of Materials Science & Technology. 2013;29(2):137-41.

The Design of Artificial Intelligence Control System for LED Based on ZigBee and Light Emitting Diode Materials YuJie Zhang1, a, Yun Liu1,b 1College of Information and Electric Engineering, Shaanxi University of Science and Technology Xi’an, China azhangyujie@sust.edu.cn, bjingying530@126.com Keywords: ZigBee; BP neural network; LED intelligent control; compensation lighting; STM32 Abstract.Due to the defects of traditional LED intelligent control system, the design scheme of artificial intelligence control system for LED based on ZigBee was proposed in this paper, which described the hardware and software design method of the system.
Journal of lighting engineering.
Journal of lighting engineering.
Journal of natural science of heilongjiang university.

Mining targets are divided into two general categories of materials: placer deposits, consisting of valuable minerals contained within river gravels, beach sands, and other unconsolidated materials; and lode deposits, where valuable minerals are found in veins, in layers, or in mineral grains generally distributed throughout a mass of actual rock.
using non-combustible, fire-resistant and non-sparking materials to build explosive material storage facilities and installing correct safety devices preventing unauthorised people from getting inside, ensuring that areas surrounding storage facilities for explosive materials are clear of rubbish, bushes, dry grass or trees within a 10-m radius and placing unused explosive materials in a protected location, as soon as practicable after charging is completed, etc.
Serbian Journal of Management, Vol. 4 (2009), pp. 91-104
Journal of Safety Research, Vol. 34 (2003), pp. 515-525
The Science of the Total Environment, Vol. 259 (2000), pp. 45-53.