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APPLICATION OF RADON TRANSFORM IN INVERSE PROBLEM OF PERMEABILITY DYNAMICS
LI Xiao-feng, ZHU Ben-ren
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    2001, 18 (2): 115-118.  
Abstract265)      PDF (153KB)(948)      
The inverse problem of elliptic partial differential equation in the permeability field is discussed,whose permeability coefficient is nearly uniform.By using Radon transform in computerized tomography technology,the solution to this problem could be found,and some numerical examples are presented.
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CREATION AND APPLICATION OF A KIND OF NONLINEAR FILTERS
ZHENG Xiao-shi, ZHU Ben-ren
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    2001, 18 (1): 33-36.  
Abstract217)      PDF (153KB)(1107)      
Some nonlinear differential operators and their discrete schemes are considered.The discrete schemes can be used as nonlinear filters in the field of Signal and Image Processing.They possess some interesting features while the linear filters do not.
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