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To frequently-used semiconductor materials, such as Si, Ge, GaAs and Au, the half-barrier current is mainly restricted by the electron leaping the barrier.
“TRL-Based Modeling Method of Varactor Diodes for 3mm Millimeter-Wave Application,”J.CHINESE JOURNAL OF ELECTRONICS.
Journal of University of Electronic Science and Technology of China, 31(6): 491～496.(2012)

Experiment requirements Material.
In seasonal permafrost region, soil is almost remolded in hydraulic project construction, the sample material is also remolded with silty clay that comes from Heilongjiang Province Hydraulic Research Institute Wanjia frost soil testing ground, site in seasonal permafrost region of Northeast China.
State and Progress of Research on the Frozen Fringe and Frost Heave Prediction Models[J].Journal of Glaciology and Geocryology,2000,22(1):90-95 [2] Peng Liyun,Liu Jiankun,Tian Yahu.Study on frost heaving property of silty caly[J].Hydrogeology and Engineering Geology,2009,36(6):62-67 [3] ZHAO Huixin, WU Zhiqin, LI Zhaoyu.
Analysis of mechanism of rest raining soil freezing swelling by using intermission method[J].Journal of China University of Mining and Technology,1999,28(5):413-416
Moisture migration during freeze and thaw of unsaturated soils: modeling an large scale experiments[J].Cold Regions Science and Technology,1997(25):33-45.

Acknowledgements This study was supported by foundation item: National Natural Science Foundation of China (No. 51275481); The Young Researchers Foundation of Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University(2012QN11); Program of “Xinmiao” (Potential)Talents in Zhejiang Province; Program for Innovative Research Team of Zhejiang Sci-Tech University.
Liang: Journal of Zhejiang Silk Institute of Technology.
Wang, et al: Journal of Donghua University (English Edition).

Comprehensive benefits analysis of the artificial ecological wetland construction in Tianjin Harbor Economic Area Guozhu Huang1, a, Tan Zhu1,b, Yijun Ji1,c , Jun Hu2,d and Tie Wen2,e 1College of Environmental Science and Engineering, Nankai University, Tianjin, China 2Tianjin Harbor Industrial Area Development Co., Ltd.
They provide for the educational and scientific research objects, materials and practice base.
Journal of Soil and Water Conservation ，1984
[6]Faber S, Costanza R: Journal of Environmental Management, 1987, 24(1): 41~51

Shaoguan port was one of the important river ports in Guangdong Province.It was an important waterway transit hub in northern Guangdong, southern Hunan and southern Jiangxi, would develop into a multi-functional comprehensive port with loading and unloading,warehousing, port industry, commerce and physical distribution,which mainly did energy sources, raw materials and other lot cargo, both container transport.
References [1] Xinguo Ning，Shilin Zhou，Jun Zhu，Zhengqiu Fan and Xiaoxue Shi, in: Journal of Fudan University ( Natural Science), Vol. 51(2012),No.3, p. 370(In Chinese)
[2] Yu Sun, in: Journal of Environmental Protection, Vol. 22(2009), p. 68(In Chinese)

Redundant Driving Underactuated Robot Finger for Powerful Grasp Qi Lia, Wenzeng Zhangb Key Lab for Advanced Materials Processing Technology(Ministry of Education), Dept. of Mechanical Engineering, Tsinghua University, Beijing 100084, China aliqithu@126.com, bwenzeng@tsinghua.edu.cn Keywords: robotic hand, underactuated finger, self-adaptive grasping, redundant driving Abstract.
Acknowledgments This paper is funded by the National Natural Science Foundation of China (No.50905093).
Journal of Bionic Engineering. 6(2009), pp.255-263
Journal of Humanoid Robotics. 9(2012), No.4, pp.1-18

Acknowledgement This research is supported by the National Natural Science Foundation of China (51205316), the Basic Research Foundation of Northwestern Polytechnical University of China (JC201112), the Doctorate Foundation of Northwestern Polytechnical University (CX201223) and Innovation Fund of Commercial Aircraft Corporation (The Rapid Design and Planning Technology for Aircraft Key Assembly Process Based on MBD).
Journal of Materials Processing Technology, 2003,139 (1-3): 257–262
Journal of Visual Languages and Computing, (2002) :177-195.

Teachers are required to guide students to utilize this platform to present their projects, display and share their materials, learning methods, understanding of certain themes etc.
（No.GH122031）as well as Hebei Department of Science and Technology 2012. (12457619) References [1] Brown, J.D.
Shandong: Shandong Foreign Language Teaching Journal, 2004, vol. 4, pp. 33-35
[4] Liu Yanzheng. “”The English Teaching Pounded by the Constructivism”, Shandong: Shandong Foreign Language Teaching Journal, 2oo4, vol. 2, pp. 67-69

Mandal, Investigations on ancient high – tin bronze excavated from lower Bengal region of Tilpi, Indian Journal of History of Science 43.3 (2008) 381-410
Mircea, Plutarch's report on the blue patina of bronze statues at Delphi: a scientific explanation, Journal of the American Institute for Conservation – JAIC 44/2 (2005) 103-116
From these results we conclude these rods are a material of organic provenance like grass or thin branches.
Imbedded in corrosion products up to 2 mm large metallic material was observed (Fig. 9a).

China Chemical School, Shanghai University of Engineering Science, Shanghai 201620, P.R.
Materials and methods Experimental Apparatus and Processes With an effective volume of 7.0 L, a 19.4 L continuous stirred-tank reactor (CSTR) which has a gas-liquid-solid separating device was used in this study (Fig.1).
International Journal of Hydrogen Energy: 35(2010), p.81 [5] APHA.
International Journal of Hydrogen Energy: 32 (2007), p755 [8] LI Yong-feng, HAN Wei, XU Jing-li, CHEN Hong, WANG Lu, Chuan-ping.