Results 91 to 100 of about 518,086 (284)

SPECTRAL PROBLEM FOR THE JONES MATRIX IN REMOTE SCATTERING

open access: yesKosmìčna nauka ì tehnologìâ
The paper addresses the study of anisotropy in remote scattering basing on the spectral problem. The spectral problem is formulated as the determination of eigenpolarizations and eigenvalues for the Jones matrix, which describe the optical anisotropy of the medium. Jones matrices of media with complex anisotropy (media characterized by several types of
S. SAVENKOV   +3 more
openaire   +1 more source

Inverse spectral problems for Schrödinger-type operators with distributional matrix-valued potentials

open access: yesDifferential and Integral Equations, 2015
The principal purpose of this note is to provide a reconstruction procedure for distributional matrix-valued potential coefficients of Schr dinger-type operators on a half-line from the underlying Weyl-Titchmarsh function.
Eckhardt, Jonathan   +4 more
openaire   +4 more sources

Deterministic hBN Bubbles as a Versatile Platform for Studies on Single‐Photon Emitters

open access: yesAdvanced Functional Materials, EarlyView.
Single‐photon emitters (SPEs) in hBN are promising for quantum technologies; however, in exfoliated samples their activation is required, limiting reproducibility of previous studies. This work introduces a large‐area MOVPE‐grown hBN platform that hosts SPEs without prior activation.
Piotr Tatarczak   +8 more
wiley   +1 more source

Matrix spectral problem with multiple-order jumps and poles [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1996
AbstractThe inverse spectral method for a general N × N spectral problem for solving nonlinear evolution equations in one spacial and one temporal dimension is extended to include multi-boundary jumps and high-order poles and their explicit representations.
openaire   +2 more sources

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein   +7 more
wiley   +1 more source

Dual‐Interface‐Dominant Cathode Architectures Enabling Fast Sulfur Redox and Stable Interfaces in All‐Solid‐State Li‐S Batteries

open access: yesAdvanced Functional Materials, EarlyView.
An optimized carbon host nanostructure enables a dual‐interface‐dominant architecture in sulfur cathodes of solid‐state Li‐S batteries by selectively forming sulfur|carbon and sulfur|solid electrolyte interfaces. This tailored interfacial configuration accelerates sulfur redox kinetics by establishing enriched Li+/e– transport networks, while ...
Zhao Yang   +13 more
wiley   +1 more source

Explicit solution for an infinite dimensional generalized inverse eigenvalue problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We study a generalized inverse eigenvalue problem (GIEP), Ax=λBx, in which A is a semi-infinite Jacobi matrix with positive off-diagonal entries ci>0, and B= diag (b0,b1,…), where bi≠0 for i=0,1,….
Kazem Ghanbari
doaj   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan   +6 more
wiley   +1 more source

Unveiling Multidimensional Physicochemical Design Principles for Tissue Processing Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
This study establishes a materials‐based design framework for polymer hydrogels in tissue clearing, linking physicochemical properties to performance in tissue processing, labeling, and imaging. By analyzing rheology, swelling, porosity, antibody diffusion, mechanical performance, and thermochemical stability across platforms, this work provides a ...
Sangjae Kim   +8 more
wiley   +1 more source

On an inverse spectral problem for a quadratic Jacobi matrix pencil

open access: yesJournal of Mathematical Analysis and Applications, 2005
The authors consider an inverse spectral problem for a quadratic matrix pencil \(Q\) of the form \(Q(\lambda)=\lambda^2I_n+\lambda B+C\), where \(I_n\) is the identity matrix and \(B\) and \(C\) are Jacobi matrices of order \(n\). Denote by \(Q_1\) the quadratic matrix pencil obtained from \(Q\) by deleting its last row and its last column.
Agranovich, Yuri   +3 more
openaire   +3 more sources

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