Results 21 to 30 of about 1,229,088 (206)
Some inverse problems of Fourier optics
Современная математика: Фундаментальные направления, 2023 We consider a general formulation of the problem of signal reconstruction from incomplete a priori information about it and measurements of the intensity of its Fourier transform.
V. E. Petrov
doaj +1 more source
Quadratic functional estimation in inverse problems [PDF]
, 2009 We consider in this paper a Gaussian sequence model of observations $Y_i$, $i\geq 1$ having mean (or signal) $\theta_i$ and variance $\sigma_i$ which is growing polynomially like $i^\gamma$, $\gamma >0$.
Butucea, Cristina, Méziani, Katia
core +5 more sources
Advancing Structural Health Monitoring with Deep Belief Network-Based Classification
MathematicsStructural health monitoring (SHM) plays a critical role in ensuring the safety and longevity of civil infrastructure by enabling the early detection of structural changes and supporting preventive maintenance strategies.
Álvaro Presno Vélez +2 more
doaj +1 more source
Inverse hyperbolic problems and optical black holes [PDF]
, 2008 In this paper we give a more geometrical formulation of the main theorem in [E1] on the inverse problem for the second order hyperbolic equation of general form with coefficients independent of the time variable.
A. Katchalov +9 more
core +3 more sources
Classification and Prediction of Topological Insulators by Using the Density of States
MathematicsIn order to characterize topological insulators it is customary to use representations of the electronic structure, such as the band structure, where the energy of electrons is represented as a function of their momenta.
Alejandro Díaz-Nadales +3 more
doaj +1 more source
Neural networks for quantum inverse problems
New Journal of Physics, 2022 Quantum inverse problem (QIP) is the problem of estimating an unknown quantum system from a set of measurements, whereas the classical counterpart is the inverse problem of estimating a distribution from a set of observations. In this paper, we present a
Ningping Cao +5 more
doaj +1 more source
Inverse problems of determining coefficients of time type in a degenerate parabolic equation
Қарағанды университетінің хабаршысы. Математика сериясы, 2022 The paper is devoted to the study of the solvability of inverse coefficient problems for degenerate parabolic equations of the second order. We study both linear inverse problems - the problems of determining an unknown right-hand side (external ...
A.I. Kozhanov +2 more
doaj +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Gonadal Dysfunction in Wolfram Syndrome: A Prospective Study
DiagnosticsBackground: Wolfram syndrome (WFS), also known as DIDMOAD, is a rare monogenic neurodegenerative disorder characterized by four key components: non-autoimmune insulin-dependent diabetes mellitus (DM), optic atrophy, sensorineural hearing loss, and ...
Gema Esteban-Bueno +1 more
doaj +1 more source
Inverse Generalized Maximum Flow Problems
Mathematics, 2019 A natural extension of maximum flow problems is called the generalized maximum flow problem taking into account the gain and loss factors for arcs. This paper investigates an inverse problem corresponding to this problem. It is to increase arc capacities
Javad Tayyebi, Adrian Deaconu
doaj +1 more source