Results 31 to 40 of about 13,270 (218)

Least-Norm of the General Solution to Some System of Quaternion Matrix Equations and Its Determinantal Representations

Abstract and Applied Analysis, 2019
We constitute some necessary and sufficient conditions for the system A1X1=C1, X1B1=C2, A2X2=C3, X2B2=C4, A3X1B3+A4X2B4=Cc, to have a solution over the quaternion skew field in this paper.
Abdur Rehman, Ivan Kyrchei, Muhammad Akram, Ilyas Ali, Abdul Shakoor   +4 more
doaj   +1 more source

Precise Tailoring 3D Printed In Situ Toughening Low‐k Microwave Transparent Structure via Thiol‐acrylate Chain Transfer Behavior

Advanced Science, EarlyView.
An in situ thiol–acrylate chain transfer‐mediated toughening strategy is introduced for Digital Light Processing (DLP) printing. Benefiting from its excellent printability, a printed gyroid lattice‐filled plate (100 µm wall thickness) achieves 92% transmittance at 10 GHz under a 50° incidence angle following structural optimization. ABSTRACT The unique
Ce Bian, Kai Zheng, Ruoyu Chen, Wansong Gu, Guanxiang Zhong, Difei Liang, Longjiang Deng, Hetao Chu   +7 more
wiley   +1 more source

Determinantal Representations of the Core Inverse and Its Generalizations with Applications

Journal of Mathematics, 2019
In this paper, we give the direct method to find of the core inverse and its generalizations that is based on their determinantal representations. New determinantal representations of the right and left core inverses, the right and left core-EP inverses,
Ivan I. Kyrchei
doaj   +1 more source

3-D Reconstruction of Binocular Vision Using Distance Objective Generated From Two Pairs of Skew Projection Lines

IEEE Access, 2017
A reconstruction method is provided to improve the measurement of the binocular vision. The image projections of the 3-D point on the 3-D reference are analyzed by the multiple view geometry.
Guan Xu, Junyi Chen, Xiaotao Li
doaj   +1 more source

Computing Spectral Elimination Ideals [PDF]

, 2014
We present here an overview of the hypermatrix spectral decomposition deduced from the Bhattacharya-Mesner hypermatrix algebra. We describe necessary and sufficient conditions for the existence of a spectral decomposition.
Gnang, Edinah K.
core  

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Some Remarks on a Generalized Vector Product [PDF]

, 2011
In this paper we use a generalized vector product to construct an exterior form $\wedge :(\mathbb{R}^{n}) ^{k}\to \mathbb{R}^{\binom{n}{k}}$, where $\binom{n}{k}=\frac{n!}{(n-k)!k!}$, $k\leq n$.
Acosta-Humánez, Primitivo B., Aranda, Moisés, Núñez, Reinaldo   +2 more
core   +3 more sources

Who Are the Consumers of European Farmers' Markets? A Cross‐Country Analysis

Agribusiness, EarlyView.
ABSTRACT With substantial growth in the number of farmers' markets (FMs) in developed countries, the number of consumers visiting FMs is also increasing. This study comparatively assesses the consumers of FMs in three European countries where FMs traditionally play a distinctive role in food supply chains.
Áron Török, Gréta Maró, Zsófia Jámbor, Zalán Márk Maró, Barbara Tocco, Péter Balogh, Péter Czine   +6 more
wiley   +1 more source

Swallowing and Communication in Cockayne Syndrome: Clinical Characteristics and Management

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Cockayne syndrome (CS) is an ultrarare genetic disorder associated with genes encoding proteins involved in DNA repair. The clinical course of CS involves neurodevelopmental and neurodegenerative features, including swallowing and communication impairments.
Abigail M. Spoden, Katlyn E. McGrattan, Peter B. Kang   +2 more
wiley   +1 more source

Cramer's rule for a class of coupled Sylvester commutative quaternion matrix equations

Demonstratio Mathematica
In this article, based on the real representation and Kronecker product, Cramer’s rule for a class of coupled Sylvester commutative quaternion matrix equations is studied and its expression is obtained.
Cai Xiaomin, Ke Yifen, Ma Changfeng
doaj   +1 more source