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Online since: December 2011
Authors: Xiao Min Shi, Bao Jian Wang
China 2School of Mechanical Engineering, University of Science and Technology, Beijing P.R.
Physical simulation is used in conventional forming process for skew rolling, for example, through using rubber earth, steel ball forming process in skew rolling is simulated by scholar in Japan, internal material flowing pattern of rolled pieces is obtained [1], motion and strain of radial cross-section of rolled pieces are approached by means of gain moiré fringes methods[2], but axial deforming is not researched in previous works, therefore, QIAO S L researches motion and strain of axial cross-section of rolled pieces by using of dense grid moiré fringes method in China, but motion and strain of all cross-section still can not be obtained[3], there are lots of limitation in previous works.
References [1]Zhou Y P: The Numerical Simulation of the Copper Ball In Skew Rolling (Beijing University of Science and Technology, Beijing, 2007)
[2]Qiao S L, Hu Z H: Wuhan Metallurgy Science Technology University Vol.17 (1994), p.143 [3]Jiang Z Y, Ties A K: Metal Process Technology Vol.25 (2001), p.112 [4]Wang B Y,Liu J P and Hu Z H: Rolling forming curved face in skew rolling //Forging Symposium(Beijing: Aviation Industry Press,1999, p.382)
[5]Shi X M: Machinery (2002, 06), p.16-18 [6]Zhao J J, Ma Z H and Hu Z H: Journal Of Iron And Steel Research( 2002,01), p.22-25
Online since: June 2014
Authors: Fang Qin Li, Ji Yong Liu, Xiao Feng Zhang, Jian Xing Ren, Jiang Wu
Test equipment and processes The test accomplished on the experiment table which used to remove CO2 with hollow fiber membrane contactors, its process shown in Figure 1.In this test the hydrophobic micro porous primarily applicator hollow fiber membrane material, it separated absorption liquid and flue gas, so that the gas and liquid could flow across the membrane.
China(11dz2281700) References [1] IPCC.Climate change 2001:the science basis.Contribution of Working Group I to the Third Assessment Report of the International Panel on Climate Change [M].New York:USA, Cambridge University Press,2001 [2] Ran A B,Rubin E S.
Membrane Science and Technology, 2004, 24 (1):32-37 [4] Zhang Wei Feng, Fang Meng Xiang.].
Journal of Environmental Sciences,2006,26(5):773—778
Online since: July 2015
Authors: Song Jing Li, Jin Xian Wang, Zeng Wen
Introduction Microfluidic is the science and technology of systems that process or manipulate small amounts of fluids (10–9 to 10–18litres), using channels with dimensions of tens to hundreds of micrometres[1].
The valve body includes a concave membrane and a flat membrane made of PDMS material.
Science Press(Beijing), 2006
Science, 2005, 309(5731): 137-140
Chinese Journal of Analytical Chemistry, Vol. 32(2004) No.10, p.1401-1406
Online since: October 2011
Authors: Guang Fu Liu, Ping He, Dan Zhou
(5) BI is the DU’s basic information including volume, shape, weight, material, geometrical topology and so on.
Acknowledgements This work was financially supported by the National Natural Science Fund of China (NO.50775061) and Natural Science Fund of Anhui Province Education Department (NO.KJ2011B050).
[8] Lee T: Journal of Integrated Design and Process Science Vol. 10(2) (2006), p.45~55.
Online since: August 2013
Authors: Jing Chun Qi
Urban wetland park as a special kind of park type refers to the natural wetland park type that regard urban green space system as aprks,by using reasonable protection, forming protection, popular science and leisure, and other functions in one[1].
On the basis of wetland ecological conservation, It is incorporated into the urban green space system planning, with wetland ecological functions and typical characteristics, ecological protection, popular science education, natural and recreational tour as the main content of the park.
The water body with activeness and penetrating power in the urban wetland landscape become the most vibrant landscape organization elements.It reflects profound cultural deposits and rich material civilization of the city.
From central park, acrossing wetland zone park and science museum of wetland plant to the birds museum is the main axis.
Journal of Chinese Gardens, 2006 (6) : 56-60.
Online since: January 2012
Authors: Ke Qiang He, Juan Zhang, Shang Qing Wang, Wei Wang
As the material composition and structure of debris landslide are rather special, it determines that the type of landslide has the significant displacement and slow slip instability characteristics and laws in front of temporary sliding.
Acknowledgements The study was supported by National Natural Sciences Foundation of China (No: 40672182 and 40872184).
International Journal for Numerical & Analytical Methods in Geo-mechanics; Vol.27- 5 (2003) ,p.23-36
Progress in Landslide Science, (2007) [4] Dianxiu Ye,Qiang Zhang,Rong Zhu.
Displacement dynamics theory on debris landslides &its application, Science Press,(2007).
Online since: May 2012
Authors: Wen Yi Yao, Mian Li, Er Yang, Wen Feng Ding, Jiang Nan Chen
Material and Methods Experimental Model Design.
Acknowledgments The financial support from the National Basic Research Program of China (2011CB403303), the Financial Program of MWR (201201083) and the National Natural Science Foundation of China (41071191) are grateful acknowledged.
Advance in Earth Sciences.
Journal of Geographical Sciences.Vol.19 (2009), p.321-330.
Online since: May 2019
Authors: Noriyuki Iwamuro
Among various kinds of wide bandgap semiconductors, silicon carbide (SiC) attracts attention as material for power devices because of its high thermal capability.
Firstly, the lack of significant diffusion of dopants in SiC materials prevents the use of the Si DMOSFET process.
Tsuruta, “4H-SiC Trench MOSFET with Ultra-Low On-Resistance by using Miniaturization Technology”, Material Science Forum, vol.924, pp.707–710, 2018, doi: 10.4028/www.scientific.net/MSF.924.707
Yamakawa, “Demonstration of SiC-MOSFET Embedding Schottky Barrier Diode for Inactivation of Parasitic Body Diode”, Material Science Forum, vol.897, pp.477–482, 2017, doi: 10.4028/www.scientific.net/MSF.897.477
Iwamuro, “Investigation of Short-circuit Failure Mechanisms of SiC MOSFETs by varying DC bus voltage,” Japanese Journal of Applied Physics, vol.57, 0740102-1~10, 2018, doi: 10.7567/JJAP.57.074102
Online since: July 2013
Authors: Yang Liu, Chuang-Min Li
The Precision Statistical Analysis of Air Voids of Dense-Graded Asphalt Mixture Specimen Measured by Surface Dry Method LI Chuang-mina LIU Yangb School of traffic and Transportation Engineering,Changsha University of Science & Technology, , Changsha, China 410004; alichuangmin@126.com,bl614613@126.com Key words:asphalt mixture specimen;surface-dry method;water absorption;air voids;precision control Abstract.
Acknowledgement This research was supported by the Science foundation of Communications Department of Hunan Province (Project No. 201009), the People’s Republic of China.
Evaluating the Corelok measurement of bulk specific gravity for hot mix asphalt samples[J].Journal of Testing and Evaluation.2002.30(4): 274—282
[6] AASHTO.Standard specifications for transportation materials and methods of sampling and testing[S].Washington D.C.
Study on Measuring Methods of Compact Bituminous Mixture Bulk Density[J] .Journal of Southeast University (Natural Science, Edition), 2001, 31 (3): 113-117.
Online since: September 2013
Authors: Chang Lai Xiao, Xiu Juan Liang, Run Chu Wei
In general, materials input into groundwater by human have the features that deviation degree and the volatility are high.
Environmental Science.
Journal of hydrometeorology.
[8] YAGN Zheng-xi, WU Qian-hong, PENG Zhi-xing, et al, in:Tutorial of geoscience data analysis , edtied by Science Press, Beijing(2008), in press.
Journal of Jilin University: Earth Science Edition.