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Journal of Policy Modeling (1997). 417-440. ], Ozturk (2010)[[] Ozturk, I.
Journal of Enery Policy (2010), 340-349. ], Kum, et al. (2012)[[] Kum, H., Ocal, O., & Aslan, A.
Journal of Development Economics (2003), 1-23. ], Singh, (2007)[[] Singh, A.
Journal of Energy Development (1978), 3, 401-403. ] in 1978.
Advanced Materials Research (2012), 524-527, 3388-3391. ] found that there is a unidirectional Granger causality running from GDP to EC.

According to Martins and Campos [17], the function of inventories is to act as regulators of business flow or to balance the speed with which the materials are received by the speed with which they are used and delivered to customers.
Journal of Cost Management, 14(1): 37-45
European Journal of Operational Research, 46: 271-281
Science, New Series, 220(4598): 671-680
European Journal of Operational Research: 77-92

This is the best method to turn waste materials into re-usable products.
Materials Aggregates.
Awwad and Lina Shbeeb, The use of Polyethylene in Hot Asphalt Mixtures, American Journal of Applied Sciences. 4 (6) (2007) 390-396
[8] Ali M, Liu A, Sou H and Chouw Nawawi, Mechanical and dynamic properties of coconut fibre reinforced concrete, Construction Building Materials. 30 (2012) 814-825
[11] Ratnasamy, M and Radin Umar, R.S., Highway Materials -A Guide Book for Beginners, Universiti Putra Malaysia Press, 2001.

The presence of these materials in water streams is a hazardous threat to human life and other flora and fauna.
This may be attributed to the small amount of these materials in the mixture.
Morkoç, Zinc oxide materials and devices grown by MBE. 2013
Zeng, "Stabilization of nanoscale zero-valent iron (nZVI) with modified biochar for Cr (VI) removal from aqueous solution" Journal of Hazardous Materials, 2017
Mahmoodi, “Materials Science in Semiconductor Processing Preparation , magnetic properties , and photocatalytic performance under natural daylight irradiation of Fe3O4 -ZnO core / shell nanoparticles designed on reduced GO platelet,” Mater.

Materials and Methods The study was conducted at the department of orthodontics, Jilin University College of Dentistry in collaboration with the Urumqi DW Innovative Infotech Co.
We assumed all materials to be homogeneous.
The materials’ mechanical parameters including elastic modulus and Poisson's ratio were adopted from a previous study (Table 1) [17].
All materials were designed to have small deformation under stress.
Journal of Clinical Dental Science. 2012;3:35-42

Direct band gap benefits the light absorption of CZTS materials because of the high electron transition probability, and this can be seen in the calculated optical properties in the next section.
Absorption coefficient is one of the most important parameters for absorber layer materials in their photovoltaic applications.
Optical conductivity reflects the change of the conductivity of materials arising from illumination.
The two CZTS materials are transparent above the plasma frequency, where most light passes through without being absorbed by the materials, so the properties relevant to light absorption such as , and all approach to zero.
MOHOLKAR, CZTS based thin film solar cells: a status review, Materials Technology. 28(2013) 98-109

Introduction Logistics demand involves goods transportation, distribution, warehousing, packaging, handling loading and unloading, distribution processing, and related logistics information links, when commodity, and waste goods and material etc create demand on space , time and costs of goods.
Acknowledgment This research was supported by the Technology development Projects of Guangxi Province (0992006-1)and the Foundation of Research Projects of Department of Education of Guangxi (Nos.200911LX165, 200911LX168, and 200911MS117) and Science Foundation funded project of Guangxi University of Technology (0977206) .
Clerk Maxwell, “Based on the GM (1,1) model and gray relational combined forecasting methods” [J]Science Technology and Engineering , 2009,9(4): 842-844,851 [4] China Statistics Press Editorial Board.
“Grey Prediction and Decision[M]”.wuhan:huangzhong Science and Technology University Publishuing House,1986
[7] Liu wen-fang, “The application of GM (1,1) model in Prediction of guangxi sugar production”, Journal of Guangxi University of Technology 2009,20(2):27-29

Performance Investigation on Porous Micro Heat Sink for Cooling of High Power LEDs Zhongmin Wan1, a, Zhengkai Tu2,b, Jing Liu1,c 1 School of Information and Communication Engineering, Hunan Institute of Science and Technology, Yueyang, 414000, China 2School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China azhongminwan@hotmail.com; btuzhengkai@yahoo.cn; chustheat@163.com Keywords: High power LEDs; Porous micro heat sink; Porous media; High heat flux Abstract.
Introduction High power light emitting diodes (LEDs) which depend on the semiconductor material to emit the light have become much more attention in recent years because of several advantages [1,2].
Acknowledgements The current work is supported by the China Postdoctoral Science Foundation (20090451038) and Scientific Research Fund of Hunan Provincial Education Department (09B041).
Huang: International Journal of Thermal Sciences, Vol.49 (2010), p.196

So the thickness and the material of the pump should be paying more attention to at the stage of the structural design. 4.2 Pressure characteristics analysis Figure 6 and Figure 7 are the distribution of static pressure and the distribution of total pressure.
Acknowledgments This work was financially supported by National Natural Science Foundation of China No. 51305239, and Natural Science Foundation of Shandong Provincial No.
ZR2013EEQ010, and China Postdoctoral Science Foundation funded project No. 2013M531591, and Postdoctoral Innovation Project of Shandong Provincial No. 201202018.
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2004218 (4): 425-436

The raw material of boiler mainly includes coal, heavy oil and coal gas, there were six main drawbacks by the way of this heating mode: (1) It can produce a large amount of waste gas and waste residue, which can result in the heavier atmospheric environmental pollution and waste of electricity; (2) due to adopting the high power blower and induced draft fan, the electricity consumption was very high (3) Because the special man was needed to maintain the boiler，it can result in waste of manpower and financial resources; (4) There were other drawbacks，such as the complex installation and maintenance; (5) Using the desulfurization and the removal equipment of dust can increase the investment and spending; (6) Due to the flame combustion, a huge hidden trouble was produced when the leakage happened.
This paper is supported by the Research Foundation of Science and Technology of Taian City (No.20122058), the Shandong Excellent Young Scientist Research Award Fund(No.BS2011DX037), the Research Foundation of Science and Technology of Taian City(No.20140629-1), and the Special Funds for Postdoctoral Innovative Projects of Shandong Province(No.201203055).
Journal of Engineering for Thermal Energy & Power . 2009,24 (3) 337-341
[2] H.Z.CHAI, Heat conduction oil boiler and heating system application in road engineering, Shanxi Science & Technology of Communications. 2012(4) 32-35
Industrial heat conduction oil system design and its application in dyeing factory analysis, science & technology information. 2013 (3) 73-74.