Results 1 to 10 of about 176,435 (287)

Consistency Of Definition Of Orthogonality In A Partial Metric Induced By A Metric

open access: yesJurnal Derivat, 2023
An extension of the metric space in which the distance of the same point is not always zero is called a partial metric space. Orthogonality is the relation of two perpendicular lines at one point of intersection forming a right angle.
Mochammad Hafiizh   +3 more
doaj   +1 more source

Low-Complexity Robust Adaptive Beamforming Based on INCM Reconstruction via Subspace Projection

open access: yesSensors, 2021
Adaptive beamforming is sensitive to steering vector (SV) and covariance matrix mismatches, especially when the signal of interest (SOI) component exists in the training sequence.
Yanliang Duan   +3 more
doaj   +1 more source

Classification of All Non-Isomorphic Regular and Cuspidal Arm Anatomies in an Orthogonal Metamorphic Manipulator

open access: yesRobotics, 2020
This paper proposes a classification of all non-isomorphic anatomies of an orthogonal metamorphic manipulator according to the topology of workspace considering cusps and nodes.
Christos Koukos-Papagiannis   +2 more
doaj   +1 more source

Quantitative Analysis of the Balance Property in Factorial Experimental Designs 24 to 28

open access: yesMathematics, 2022
Experimental designs are built by using orthogonal balanced matrices. Balance is a desirable property that allows for the correct estimation of factorial effects and prevents the identity column from aliasing with factorial effects.
Ricardo Ramírez-Tapia   +4 more
doaj   +1 more source

Negative $q$-Stirling numbers [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
The notion of the negative $q$-binomial was recently introduced by Fu, Reiner, Stanton and Thiem. Mirroring the negative $q$-binomial, we show the classical $q$ -Stirling numbers of the second kind can be expressed as a pair of statistics on a subset of ...
Yue Cai, Margaret Readdy
doaj   +1 more source

A Compact and Straightforward Self-Decoupled MIMO Antenna System for 5G Applications

open access: yesIEEE Access, 2020
This study investigates a compact and straightforward self-decoupled 2 × 2 multiple-input multiple-output (MIMO) antenna set and its applications for current and future 5G terminal devices.
Haiyan Piao, Yunnan Jin, Longyue Qu
doaj   +1 more source

The Othogonality of Martingale in Birkhoff’s sense and others

open access: yesTikrit Journal of Pure Science, 2019
Orthogonality is one of an important  the concepts in Mathematics , therefor it will be discussed in this paper, the orthogonality of martingale according to Birkhoff ’s, Roberts’s, Singer’s, Carlsson’s sense for  orthogonality  and the conditions that ...
Suha Jumaa, H.H.Ibrahim
doaj   +1 more source

Gabor systems on positive half line via Walsh-Fourier transform

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
Gabor systems play a vital role not only in modern harmonic analysis but also in several fields of applied mathematics, for instances, detection of chirps, or image processing.
O. Ahmad, N.A. Sheikh
doaj   +1 more source

A Novel Block-based Watermarking Scheme Using the SVD Transform

open access: yesAlgorithms, 2009
In this paper, a block-based watermarking scheme based on the Singular Value Decomposition (SVD) is proposed. Our watermark, a pseudo-random Gaussian sequence, is embedded by modifying the angles formed by the right singular vectors of each block of the ...
Alessandro Basso   +4 more
doaj   +1 more source

Independent representations of ipsilateral and contralateral limbs in primary motor cortex

open access: yeseLife, 2019
Several lines of research demonstrate that primary motor cortex (M1) is principally involved in controlling the contralateral side of the body. However, M1 activity has been correlated with both contralateral and ipsilateral limb movements.
Ethan A Heming   +4 more
doaj   +1 more source

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