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The materials can be found from the web at https://www.bp.com/statisticalreview. 2008
The materials can be found from the web at https://www.bp.com/statisticalreview. 2013
Journal of Natural Gas Science and Engineering 10 (2009) 136-147
On the relationship between energy and GNP, Journal of Energy and Development 3 (1978) 401-403
Journal of natural Gas Science and Engineering 8 (2012) 85-98

Research Status and Problem Analysis on Pineapple Leaf Crushing and Returning Technology Ling LI 1, a, Jin ZHANG* 1, b, Zhongqing OU 1, c, Zhende CUI 1, d, Yulin LI1, e, Yuan ZHANG1, f, Zhongze YANG2, g 1Institute of Agricultural Machinery, Chinese Academic of Tropical Agricultural Sciences, Zhanjiang ,China 2School of Materials Science and Engineering, HeFei University of Technology, Hefei,China a479091047@qq.com, bzhjin1234@163.com, couzhq@qq.com, dcuizhende@126.com, eliyulin-05@163.com, fzhang198414@126.com, g594373212@qq.com Keywords: Crushing and Returning; Crushing and Returning Technology; pineapple leaf; research statement Abstract: Pineapple is widely planted as one of the four major crops in in south China.
Wang: Journal of Anhui Agricultural SciencesS Vol. 38(2010), p. 18607-18610.
Li: CHINESE JOURNAL OF TROPICAL AGRICULTURE Vol. 29(2009), p. 7-9.
Wang: Guangdong Agricultural Sciences Vol. 19(2013), p. 193-196.
Tian: Chinese Journal of Tropical Crops Vol. 33(2012), p.2230-2235.

The cause of LC was recorded in literatures [3-7], the LC is commonly occurred on rigid pavements, and a variety of factors such as materials, structures, construction, management and so on, may lead to the LC [7].
The setting temperature gradient is generated by the various combinations of weather conditions (air temperature, wind speed, solar radiation, etc.), materials (cement type and composite, admixtures, cement amount, etc.) and curing method.
Journal of Transportation Engineering, (2005). 131(8): p. 599-607
International Journal of Pavement Engineering, (2003). 4(1): p. 51-58
Journal of Transportation Engineering-Asce, (1995). 121(1): p. 75-81

[3] Tang, Xianxi; Xu, Yue; Zou, Cunjun; Chen, Fang: Advanced Materials Research, Advances in Structures, Vol.163-167(2011), pp.1180-1185
[4] Yu, Jiangtao; Yu, Kequan; Tang, Bo: Advanced Materials Research, Advances in Structures, Vol.163-167(2011), pp.670-675
[5] Li, Wei-Ming; Hong, Jia-Zhen: Journal of Shanghai Jiaotong University (Science), Vol.15(2010)No.3, pp. 377-384
[6] Gao, Ji; Zhang, Rui: Advanced Materials Research, Materials Processing Technologies, Vol.154-155(2011), pp.1629-1633
[7] Yao, Guo-Wen; Chen, Sheng-Hua; Zhou, Zhi-Xiang: Journal of Chongqing Jianzhu University, Vol.30(2008),No.3, pp. 59-62.

The raw materials involved in the experiment are as follows: (1) Cement P.S42.5 from Shanghai Cement Factory. (2) Natural aggregate: diabase of continuous grading, size from 5 to 30mm. (3) Recycled aggregate: artificially crashed waste concrete from road material, size from 5 to 30mm. (4) Fine aggregate: river sand of 2.82 fineness modulus. (5) Water: Shanghai running water.
Concrete is a kind of typical anisotropic elastic-plastic materials, the internal elastic skeleton makes concrete with elastic deformation features and cement concrete gel makes concrete with the nature of the plastic deformation.
[3] Otsiki N,Miyazato S,Yodsudjai W:Journal of Materials in Civil Engineering,2003,15(5):443-451
[5]G.L Zhang,J Su: Science technology and engineering,2008,8(20):5621-5624
[8]L Chen,Q Fang,Y Huan,Y.D Zhang:The PLA university of science and technology journal(JCR Science Edition),2007,8(5):478-485

Modern materials technology often deals with heterogeneous polymer matrix systems.
The concept of heterogeneous materials offers the possibility to tailor material systems to a given application.
In order to establish models for effective properties of heterogeneous materials it is important to study the correlation between microstructure and distribution of ZnO in polymer and the optical, specially luminescence, and electrical properties.
Deliang, Electrical properties and Raman spectra of undoped and Al-doped ZnO thin films by metalorganic vapor phase epitaxy, Materials Science and Engineering: B 86 (2001) 109
Singh, Burstein Moss effect in nanocrystalline CaS : Ce, Bulletin of Material Science 34 (2011) 673–676

Introduction Aluminium matrix composites are among the most promising materials for wear and structural applications due to their low density, low cost and ease of fabrication of composites [1].
Machining of composite materials depends on the properties and relative content of the reinforcements and the matrix materials as well as on its response to the machining process.
[3] S Charles and V P Arunachalam, Property analysis and mathematical modeling of machining properties of aluminium alloy Hybrid (Al- alloy/SiC/flyash) composites produced by liquid metallurgy and powder metallurgy techniques, Indian Journal of Engineering and Materials Sciences11, December 2004, pp, 473-480
Stephenson, Materials Science and Technology September-October 1998 Vol.14, pp 843-850
[6] “Machining Composite Materials” R.

Continuous cyclic loading on concrete constructions involves a progressive cracking mechanism, leading to significant changes of the material properties during the lifetime of the structure.
Introduction The substantially different composition of self-compacting concrete (SCC), compared to vibrated concrete (VC), affects various material characteristics.
Bittencourt: Experimental analysis of fracture processes in concrete, Journal of the Brazilian Society of Mechanical Sciences Vol. 23 No. 4 (2001)
Chudnovsky: Correlation between crack tortuosity and fracture toughness in cementitious material, International Journal of Fracture Vol. 60 (1993), pp. 97-105
De Schutter: Static and fatigue fracture mechanics properties of self-compacting concrete using three-point bending tests and wedge-splitting tests, Construction and Building Materials Vol. 57 (2014), pp. 1-8.

Materials and methods Sample collection and HA extraction.
[3] Zhishun Guo, Caihong Luo and Weidong Zhang: Journal of Sichuan University, Vol. 43(6) (2006), p. 1337~1340.
(In Chinese) [4] Zhaotong Wang, Yu Wang, Zheng Xu and Wei Zhou: Journal of East China University of Science and Technology, Vol. 25(2) (1999), p. 156~159.
[8] Liu Z T, Jiang F X, Wang W H, Li J and Li Z: Research of Environmental Sciences, Vol. 19(2) (2006), p. 1~5.
(In Chinese) [11] Xiaoli Wang, Yu Li and Yizhe Li: Journal of Jilin University: Earth Science Edition, Vol. 40(1) (2010), p. 183~187.

Materials and Methods Samples and instruments Chinese oak silkworm variety, Xuanda No 1, was selected from Shenyang Agricultural University Research Institute for Tussah.
Zhao: submitted to Science of Sericulture (2010) [2] I.
Seino: submitted to Journal of Insect Biotechnology and Sericology (2002) [8] Y.P.
Wang: submitted to International Journal of Biological Sciences (2009) [9] B.
Fujii: submitted to Journal of Agricultural Biotechnology (2005) [10] S.P.