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Some building materials smell bad and some are harmful for the workers’ health.
But the material conditions and working conditions are poor in many construction site.
For example, The enterprise should insist on carrying out series of multi-level, multi-cultural activities forms. the enterprise hired art troupe to go to the construction site to give show, which select the material that is close to daily life of migrant workers.
The enterprise propagate laws, regulations and the safety knowledge in an easy way. the enterprise send science books, law books, security books to construction site, make full use of advanced multimedia technology, and provide more intuitive textbook in order to spread positive energy.
[M], Construction safety management,China Water Conservancy and Hydropower Press, (2001) [5] Shilian Zhang[J],Internalization analysis of building construction safety accident loss, China Safety Science Journal,(2006) [6] Ying Ou,Study on the social responsibility of construction enterprise,Building economy, (2007)

And also is supported by VEGA - Grant agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic, Title of project: „ Research of algorithms and methods for predictive control of biomass combustion processes“, No. 1/0881/2013.
Mižák, Woodchip combustion process quality and the amount of combustion air, Applied Mechanics and Materials 308 (2013) 115-119
Piteľ, Monitoring of operating conditions of biomass combustion process, Applied Mechanics and Materials 308 (2013) 153-158
Hošovský, Genetic optimization of neural networks structure for modeling of biomass-fired boiler emissions, Journal of Applied Science in Thermodynamics and Fluid Mechanics 9/2 (2011) 1-6

These behaviours show a possible control through a multistage heater design (k=λp/λF) with various materials.
International Journal of Numerical Methods for Heat & Fluid Flow Vol. 14, Nr. 7, (2004), p. 877 [6] T.
Experimental Thermal and Fluid Science, (2002), p. 157-162
Mohamad, 3rd European Thermal- Sciences Conference 2000, Heidelberg.
Materials And Product Technology Vol. 22, Nos. 1/2/3 (2005), p. 35 [12] K.

Finite element analysis of pressure coiled forming process to taper weld pipe Yaqin Tian 1,2,a Zhibing Chu 2,b Qingxue Huang 2,c Jinbao Li 1, Jianping Qin 2 1 College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China. 2 College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China a tianyaqin203@163.com, b wuya_504@163.com, c hqx24@hotmail.com Keywords: weld pipe; pressure coiled; strain-stress analysis; finite element method Abstract.
Introduction Cone-shaped straight weld pipe, adopting cut strip as the raw material, is a special and delicate steel tube [1,2,3] formed by brazing after being forced to curl into cone-shaped tube by the special mould.
The problems include material nonlinearity (plastic bending), geometric nonlinearity (large deformation) and the non-linear boundary conditions (contact issues).
[3] Yu Enlin etal, The Tube & Pipe Journal, Vol. 2(1997), p. 25-31

Study on the Construction and Development of Eco-Industrial Parks Ying Xiong1, a, Min Luo2,b 1School of Management and Economics, University of Electronic Science and Technology of China, Chengdu, China 2Organic Food Development Center, Ministry of Environmental Protection of the PRC, Nanjing, China axiongying@uestc.edu.cn, blmin13@163.com Keywords: Eco-Industrial Park; Ecological development; Low-Carbon Economy; Game Theory Abstract.
With ecological theory methods and technological transformation, it is possible to make the material flows between enterprises in the zone form a closed loop, maximize the use of energy and maintain information and communication flow affluent so as to achieve the effects of resource conservation and environment protection.
It is a planned circular material and energy industrial system, and seeks to minimize the consumption of raw materials and energy, waste generation and maximizes economic benefits [1-2].
Journal of Cleaner Production, Vol. 12 (2004), p. 997-1010
China soft science, No. 4(2008), p. 1-10 (in chinese)

Kumar, Preparation of high-purity ultrafine copper powder in mass-production by chemical reduction method: Taguchi robust design optimization, Materials Science, Powder Metallurgy and Metal Ceramics. 55 (2016) 386-396
New Powder Composite Materials.
-K Mohsin, Production of copper powder from ores by electrodeposition process, Journal of University of Babylon for Engineering Sciences. 27 (2019) 233-241

Production of helical polymer microfibers by electrospinning Cheng-Chun Tanga, Yun-Ze Longb* and Jun-Chi Chenc,* College of Physics Science, Qingdao University, Qingdao, 266071, China a tang.chengchun@163.com, b yunze.long@163.com, c,* chen-physics@163.com Key words: electrospinning; helical microfibers; tip collector; buckling.
By now, a great many dissolved or melt materials have been electrospun into nanofibers that may be used in fields such as sensors, optoelectronics, catalysis, textiles, filters, tissue engineering, drug delivery, and wound healing [1,3].
All the materials were weighed by a precise electronic balance (Hang Pin, FA1004N).
Acknowledgement This work was financially supported by the Program for New Century Excellent Talents in University of China (Grand No.: NCET-07-0472) and the National Natural Science Foundation of China (Grant Nos.: 11074138 and 10910101081).
Chang: Polymer Journal Vol. 41 (2009), p. 252 [10] M.K.

Correlative Analyses between Quantities of Microbial Populations and Soil Physicochemical Property under Different Accumulation of Soil Plastic Film Jia Ruiyu1, a, Zhao Xiaoguang1,a, Huang Zhigui 1,a 1Xi’an University of Science and Technology, Xi’an, China akkkbff@163.com Keywords: soil plastic film; soil microorganism; physicochemical property; corrective analysis Abstract.
Materials and methods of the experiment Materials The tested soil is common not mulched and supplied by Xi'an Dongjiangcun Village vegetable bases.
[3] Xu Gang, Du Xiao,iing,Cao Yun: Journal of Agro-Environment Science.

In computer science, ontology provides the reuses of domain knowledge, is a conceptual explicit formal specification or representation [3,4].
Task objects {whole machine {design, machining, assembly}, parts {rough parts {ring rolling, casting, forging, stamping parts, welding pieces}, materials {metallic, nonmetallic}, shapes {rotational parts, non-rotational parts}, features {plane, cylindrical, straight bore, keyway,……} 5) Service functions describe all the functions and methods aiming at task objects.
For example, production quantity, part name, figure number, profile dimensions (diameter, length), weight etc. 2) Material features: including material name, mark, heat treatment manner. 3) Shape features: reflecting the shape, structure and functions, including geometry size, location coordinates and datum of shape features.
References [1] Zhi Li, Xianlong Jin, Yuan Cao, et al, International Journal of Advanced Manufacturing Technology,Vol.34, No.11-12, pp.1224-1235 [2] R.
Zhu: Mechanical Science and Technology Vol. 21(1)(2002), p. 479-481 [7] L.

Acknowledgements This work was financially supported by the Russian Foundation for Basic Research (project no. 13-01-00313-a) and by the Ministry of Education and Science of the Russian Federation (project 14.Y2.31.0003).
Sini: SIAM Journal on Applied Mathematics Vol. 67 (2007), p. 1124 [4] G.V.
Sazonov: Advanced Materials Research Vol. 915-916 (2014), p. 345 [7] M.Yu.
Fershalov: Advanced Materials Research Vol. 915-916 (2014), p. 341 [8] Yu.Ya.
Smith: Science Vol. 312 (2006), p. 1780 [10] G.V.