Results 31 to 40 of about 35,860 (292)

FASES ESTACIONÁRIAS DE LÍQUIDOS IÔNICOS EM CROMATOGRAFIA GASOSA: FUNDAMENTOS, AVANÇOS RECENTES E PERSPECTIVAS

open access: yesQuímica Nova, 2016
Since their original discovery in 1914, ionic liquids (IL) have been widely examined and explored in chemistry due to their unique physical and chemical properties.
Leandro W. Hantao   +2 more
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

Down-link beamforming effects on the code orthogonality in UTRA-FDD systems [PDF]

open access: yes, 2002
A novel approach in quantifying code orthogonality factor for UTRA-FDD systems is extended in this paper to include the impact of down-link beamforming.
M. Beach   +8 more
core   +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

Orthogonal Features Extraction Method and Its Application in Convolution Neural Network

open access: yesShanghai Jiaotong Daxue xuebao, 2021
In view of feature redundancy in the convolutional neural network, the concept of orthogonal vectors is introduced into features. Then, a method for orthogonal features extraction of convolutional neural network is proposed from the perspective of ...
LI Chen, LI Jianxun
doaj   +1 more source

Rational orthogonal approximations to orthogonal matrices

open access: yesComputational Geometry, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Victor J. Milenkovic, Veljko Milenkovic
openaire   +3 more sources

Birkhoff-James approximate orthogonality sets and numerical ranges [PDF]

open access: yes, 2011
In this paper, the notion of Birkhoff–James approximate orthogonality sets is introduced for rectangular matrices and matrix polynomials. The proposed definition yields a natural generalization of standard numerical range and q-numerical range (and also ...
Chorianopoulos, Christos   +5 more
core   +1 more source

Using Volunteer Computing to Study Some Features of Diagonal Latin Squares

open access: yesOpen Engineering, 2017
In this research, the study concerns around several features of diagonal Latin squares (DLSs) of small order. Authors of the study suggest an algorithm for computing minimal and maximal numbers of transversals of DLSs.
Vatutin Eduard   +3 more
doaj   +1 more source

Dimensional Lifting through the Generalized Gram–Schmidt Process

open access: yesEntropy, 2018
A new way of orthogonalizing ensembles of vectors by “lifting” them to higher dimensions is introduced. This method can potentially be utilized for solving quantum decision and computing problems.
Hans Havlicek, Karl Svozil
doaj   +1 more source

Numerical Study on the Orthogonality of the Fields Radiated by an Aperture

open access: yesMathematics, 2023
This work studies the orthogonality of the fields radiated by the different modes of a radiating aperture. Waveguide modes exhibit an orthogonality property at the aperture cross-section that can be used to simplify calculations.
Lucas Polo-López   +4 more
doaj   +1 more source

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