Results 181 to 190 of about 2,339 (216)

A Physics-Based Computational Forward Model for Efficient Image Reconstruction in Magnetic Particle Imaging. [PDF]

open access: yesIEEE Trans Med Imaging
Sanders T   +5 more
europepmc   +1 more source

Acyclic and star coloring parameters of fractal cubic networks. [PDF]

open access: yesSci Rep
Renuga C   +3 more
europepmc   +1 more source

Automated multi-class ECG arrhythmia detection using VMD and multi-task optimization. [PDF]

open access: yesSci Rep
Krishna YM   +5 more
europepmc   +1 more source

On circulant weighing matrices [PDF]

open access: yesAustralas. J Comb., 1998
A circulant weighing matrix \(W\) of order \(n\) with weight \(k\) is a square matrix of order \(n\) with elements from \(\{0,1,-1\}\) such that \(WW'= kI_n\) and in which each row (except the first row) is obtained by its preceding row by a right cyclic shift. Necessary conditions for the existence of such matrices are obtained and several of them are
Arasu, K. T ., Seberry, Jennifer
core   +3 more sources

Hadamard matrices constructed by circulant and negacyclic matrices [PDF]

open access: yesAustralas. J Comb., 2006
The Hadamard matrices of order \(4n\) for all integers \(n> 0\) is an unsolved problem for over a century. In 1944 \textit{J. Williamson} [Duke Math. J. 11, 68--81 (1944; Zbl 0060.03202)] gave a method called the sum of four squares for constructing Hadamard matrices.
Xia, Tianbing   +3 more
openaire   +2 more sources

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