Results 61 to 70 of about 148,680 (322)

No hair theorem for bound-state massless static scalar fields outside horizonless Neumann compact stars

open access: yesPhysics Letters B, 2019
We study no-hair theorem for horizonless objects, being subject to Neumann boundary conditions. For massive scalar fields, a no hair theorem for Neumann compact stars was proved by us in a previous paper, where the nonzero scalar field mass condition is ...
Yan Peng
doaj   +1 more source

On inverse problem for tree of Stieltjes strings

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
For a given metric tree and two strictly interlacing sequences of numbers there exits a distribution of point masses on the edges (which are Stieltjes strings) such that one of the sequences is the spectrum of the   spectral problem  with the Neumann ...
Анастасія Ігорівна Дудко   +1 more
doaj   +1 more source

Approximation of tricomi problem with Neumann boundary condition

open access: yesNumerische Mathematik, 1984
The Tricomi problem with Neumann boundary condition is reduced to a degenerate problem in the elliptic region with a non-local boundary condition and to a Cauchy problem in the hyperbolic region. A variational formulation is given to the elliptic problem and a finite element approximation is studied.
Vanninathan, M., Veerappa Gowda, G.D.
openaire   +2 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

General approach to the line source electromagnetic scattering by a circular strip: Both E‐ and H‐polarisation cases

open access: yesIET Microwaves, Antennas & Propagation, 2021
This study presents a new approach to line‐source diffraction by a circular strip. The investigation is obtained by employing both electric and magnetic line sources where the corresponding field components satisfy the Dirichlet and Neumann boundary ...
Kamil Karaçuha
doaj   +1 more source

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki   +7 more
wiley   +1 more source

Turing–Hopf bifurcation of a ratio-dependent predator-prey model with diffusion

open access: yesAdvances in Difference Equations, 2019
In this paper, the Turing–Hopf bifurcation of a ratio-dependent predator-prey model with diffusion and Neumann boundary condition is considered. Firstly, we present a kind of double parameters selection method, which can be used to analyze the Turing ...
Qiushuang Shi, Ming Liu, Xiaofeng Xu
doaj   +1 more source

On a method for approximate solution of a mixed boundary value problem for an elliptic equation

open access: yesЖурнал Средневолжского математического общества, 2021
A mixed boundary value problem for an elliptic equation of divergent type with variable coefficients is considered. It is assumed that the integration region is a rectangle, and the boundary of the integration region is the union of two disjoint pieces ...
Fairuzov Mahmut E., Lubyshev Fedor V.
doaj   +1 more source

Repulsive Casimir force from fractional Neumann boundary conditions

open access: yesPhysics Letters B, 2009
Esta carta estudia la fuerza de Casimir de temperatura finita que actúa sobre un pistón rectangular asociado con un campo de Klein–Gordon fraccional sin masa a temperatura finita. Las condiciones de contorno de Dirichlet se imponen en las paredes de una cavidad rectangular de dimensión d, y se impone una condición de Neumann fraccional en el pistón que
Sungbin Lim, Lee-Peng Teo
openaire   +2 more sources

A Programmable Semiconductor Containing Active Molecular Photoswitches Located in the Crystal's Volume Phase

open access: yesAdvanced Functional Materials, EarlyView.
A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy