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Spatiotemporal analysis of urban growth on forest and agricultural land using geospatial techniques and Shannon entropy method in the satellite town of Ethiopia,the western fringe of Addis Ababa city
《Ecological Processes》2020年第1期526-541,共16页Kiros Tsegay Deribew 
Rapid conversion of conserved land and cropland to non-agricultural purposes is threatening the ecological areas and dominant agricultural activities that are the main sources of livelihood in urban fringe areas of Ad...
关键词：Concentric rings Entropy index URBANIZATION Urban sprawl 
Development Characteristics of Beautiful Countryside in Hangzhou, Regarding Theory of Consumption Space Production: A Comparative Study on Three Villages
《China City Planning Review》2017年第3期58-68,共11页Wu Qianbo Gong Yuanyuan Chen Qianhu Liu Jinxin(译) 
supported by Planning Project Fund of Ministry of Education on Humanities and Social Sciences (16YJAZH063);Zhejiang Provincial Natural Science Foundation (LY16D010008, LY15D010004);Zhejiang Provincial Philosophy and Social Science Planning Research (16NDJC211YB)
In China, the Beautiful Countryside Development is a prototype of New Countryside Construction whose development mechanism is closely related to the urbanization level of the region. Regarding the consumption space pr...
关键词：consumption space Beautiful Countryside development characteristics concentric-radial pattern of rings Hangzhou 
Propagation factor of electromagnetic concentric rings Schell-model beams in non-Kolmogorov turbulence被引量：2
《Chinese Physics B》2017年第2期206-212,共7页Zhen-Zhen Song Zheng-Jun Liu Ke-Ya Zhou Qiong-Ge Sun Shu-Tian Liu 
Project supported by the National Basic Research Program of China(Grant No.2013CBA01702);the National Natural Science Foundation of China(Grant Nos.61377016,11104049,10974039,61575055,and 61575053);the Fundamental Research Funds for the Central Universities,China(Grant No.HIT.BRETIII.201406);the Program for New Century Excellent Talents in University,China(Grant No.NCET-12-0148)
We derive an analytical expression for the propagation factor（known as M2-factor） of electromagnetic concentric rings Schell-model（EM CRSM） beams in non-Kolmogorov turbulence by utilizing the extended Huygens–Fre...
关键词：atmospheric propagation partial coherence atmospheric turbulence 
Three-Dimensional Planar Metallic Lenses Based on Concentric Rings with Modulated Subwavelength Width
《Journal of Electromagnetic Analysis and Applications》2012年第12期485-491,共7页Di Feng Chunxi Zhang Lishuang Feng Yuanhong Yang 
A kind of Subwavelength Planar Metallic Lenses (SPMLs) is proposed to realize far-field optical focusing in the visible range based on concentric rings with modulated width in a silver film. The width of each metallic...
关键词：SUBWAVELENGTH Structures Focus Surface PLASMONS DIFFRACTIVE Lenses 
Quasibound states in graphene quantum-dot nanostructures generated by concentric potential barrier rings
《Chinese Physics B》2012年第2期23-31,共9页Jiang Zhao-Tan Yu Cheng-Long Dong Quan-Li 
supported by the National Natural Science Foundation of China (Grant Nos.10974015 and 11074297);the Program for New Century Excellent Talents in University (Grant No.NCET-08-0044)
We study the quasibound states in a graphene quantum-dot structure generated by the single-, double-, and triple-barrier electrostatic potentials. It is shown that the strongest quasibound states are mainly determined...
关键词：electron structure of graphene quantum dots 
Finite Element Based Analysis of Magnetic Forces between Planar Spiral Coils
《Journal of Electromagnetic Analysis and Applications》2010年第5期311-317,共7页Abbas Shiri Davoud E. Moghadam Mohammad R. A. Pahlavani Abbas Shoulaie 
This paper elaborates on the magnetic forces between current carrying planar spiral coils. Direct and concentric rings methods are employed in order to calculate the magnetic force between these coils. The results obt...
关键词：Magnetic Force Finite Element METHOD CONCENTRIC RINGS METHOD PLANAR SPIRAL Coils 
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