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TMI
2002
120views more  TMI 2002»
13 years 4 months ago
Exact Frequency-Domain Reconstruction for Thermoacoustic Tomography: I. Planar Geometry
Abstract--We report an exact and fast Fourier-domain reconstruction algorithm for thermoacoustic tomography in a planar configuration assuming thermal confinement and constant acou...
Yuan Xu, Dazi Feng, Lihong V. Wang
SIAMDM
2010
194views more  SIAMDM 2010»
12 years 11 months ago
Combinatorics and Geometry of Finite and Infinite Squaregraphs
Abstract. Squaregraphs were originally defined as finite plane graphs in which all inner faces are quadrilaterals (i.e., 4-cycles) and all inner vertices (i.e., the vertices not in...
Hans-Jürgen Bandelt, Victor Chepoi, David Epp...
FFA
2006
69views more  FFA 2006»
13 years 5 months ago
Information sets and partial permutation decoding for codes from finite geometries
We determine information sets for the generalized Reed-Muller codes and use these to apply partial permutation decoding to codes from finite geometries over prime fields. We also ...
Jennifer D. Key, T. P. McDonough, Vassili C. Mavro...
TCOM
2008
155views more  TCOM 2008»
13 years 5 months ago
Construction of nonbinary cyclic, quasi-cyclic and regular LDPC codes: a finite geometry approach
This paper presents five methods for constructing nonbinary LDPC codes based on finite geometries. These methods result in five classes of nonbinary LDPC codes, one class of cyclic...
Lingqi Zeng, Lan Lan, Ying Yu Tai, Bo Zhou, Shu Li...
CORR
2007
Springer
147views Education» more  CORR 2007»
13 years 5 months ago
Influence of Micro-Cantilever Geometry and Gap on Pull-in Voltage
In this paper, we study the behaviour of a microcantilever beam under electrostatic actuation using finite difference method. This problem has a lot of applications in MEMS based ...
W. Faris, H. Mohammed, M. M. Abdalla, C.-H. Ling