Results 151 to 160 of about 3,570,033 (364)

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

Symmetric centrosymmetric matrix–vector multiplication

open access: yesLinear Algebra and its Applications, 2000
The multiplication of an arbitary vector by a symmetric matrix on a sequential machine requires, in general, \(2n^2\) floating-point operations. In this paper, a method for the multiplication of an arbitrary vector by a symmetric centrosymmetric matrix with \(\frac 54n^2+O(n)\) flops is presented.
openaire   +3 more sources

3D Porous Metal‐Scaffold Interdigitated Micro‐Electrodes for High‐Performance On‐Chip Energy Storage Systems

open access: yesAdvanced Functional Materials, EarlyView.
Porous 3D copper scaffold‐based interdigitated electrodes are developed via dynamic hydrogen bubble templating, enabling high‐performance Zn‐ion micro‐batteries and micro‐supercapacitors. This strategy significantly boosts charge storage performance, advancing the design of next‐generation on‐chip energy storage systems.
Nibagani Naresh   +7 more
wiley   +1 more source

A Randomized Algorithm for Approximating the Log Determinant of a Symmetric Positive Definite Matrix [PDF]

open access: yesarXiv.org, 2015
Christos Boutsidis   +3 more
semanticscholar   +1 more source

On the symmetric solutions of a linear matrix equation

open access: yesLinear Algebra and its Applications, 1987
Let A be a real \(m\times n\)-matrix. An \(n\times m\)-matrix G is called a minimum-norm reflexive generalized inverse (MNRGI) of A, if the following relations hold: (i) \(AGA=A\), (ii) \(GAG=G\), (iii) \(GA=(GA)^ T\). Partitioned MNRGIs are used to derive a necessary and sufficient condition for the consistency of the linear system (*) \(AX=B\), \(X=X^
openaire   +2 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

Perturbation in eigenvalues of a symmetric tridiagonal matrix

open access: yesLinear Algebra and its Applications, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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