Results 101 to 110 of about 55,699 (240)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Hydraulic manipulators exhibit strong coupling, pronounced nonlinearities, and significant modeling uncertainties, which hinder high‐precision motion control. This paper proposes a finite‐time disturbance observer–based nonlinear robust adaptive control (RAC‐FTDO) framework enhanced by a physically consistent dynamic parameter identification ...
Tianyu Gao +3 more
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THE ALGORITHM AND PROGRAM OF M-MATRICES SEARCH AND STUDY [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2013 The algorithm and software for search and study of orthogonal bases matrices – minimax matrices (M-matrix) are considered. The algorithm scheme is shown, comments on calculation blocks are given, and interface of the MMatrix software system developed ...
Y. N. Balonin, M. B. Sergeev
doaj
The excess of a Hadamard matrix
Indagationes Mathematicae (Proceedings), 1977 AbstractLet σ(n) be the greatest possible sum of the entries of a Hadamard matrix of order n. We derive n22−n(n12n) ⩽ σ(n) ⩽ nvn, which implies nv(n2) ⩽ σ(n) ⩽ nvn.Besides, σ(n) is evaluated for n ⩽ 24 and several other values of n.
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Capacious spread spectrum watermarking utilizing hadamard matrix
2016 International Wireless Communications and Mobile Computing Conference (IWCMC), 2016 In this paper, a new watermarking method based on spread spectrum technique, which we call capacious spread spectrum (CSS) is proposed. In this method, unlike the traditional spread spectrum watermarking (TSS), more than one pseudo noise (PN) sequence will be deployed. Also, a novel method to produce orthogonal PN-sequences is achieved. Moreover, it is
Tafreshi, Hossein Fami +2 more
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Quantum computing formulation of some classical Hadamard matrix searching methods and its implementation on a quantum computer. [PDF]
Sci Rep, 2022 Suksmono AB, Minato Y.
europepmc +1 more source
Enhancing Lipidomics With High‐Resolution Ion Mobility‐Mass Spectrometry
PROTEOMICS, EarlyView.ABSTRACT Lipids, indispensable yet structurally intricate biomolecules, serve as critical regulators of cellular function and disease progression. Conventional lipidomics, constrained by limited resolution for isomeric and low‐abundance species, has been transformed by ion mobility‐mass spectrometry (IM‐MS).
Gaoyuan Lu +3 more
wiley +1 more source
On the norms and Hadamard product of Toeplitz matrices involving Leonardo numbers [PDF]
Mathematica MoravicaIn this study, we consider the Toeplitz matrices with entries being Leonardo numbers. We have found upper and lower bounds for the spectral norms of these matrices, considering also the Hadamard product of this type of matrix.
Catarino Paula +4 more
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Precision Radiation Oncology, EarlyView.This study retrospectively analyzed two types of respiratory phase CT and PET/CT images of 20 lung cancer patients. After DIR and functional grading, three lung function images were developed, and their correlations and differences were evaluated. Abstract Background Pulmonary ventilation–perfusion function plays a crucial role in both radiotherapy ...
Suyan Bi +4 more
wiley +1 more source
The expected adjacency and modularity matrices in the degree corrected stochastic block model
Special Matrices, 2018 We provide explicit expressions for the eigenvalues and eigenvectors of matrices that can be written as the Hadamard product of a block partitioned matrix with constant blocks and a rank one matrix.
Fasino Dario, Tudisco Francesco
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Quantum Inspired Universal Analog Computation Based on Circuits
Advanced Quantum Technologies, EarlyView.We propose an analog scheme of classical circuit for universal quantum computation. The information is encoded using correlated electrical signals, and the number of the basic computing components employed in our circuit design is consistent with the number of the quantum gate in the quantum circuit.
Hanxu Zhang, Yifan Sun, Xiangdong Zhang
wiley +1 more source