Results 31 to 40 of about 13,928,481 (267)

Denoising radio interferometric images by subspace clustering

open access: yes, 2017
Radio interferometry usually compensates for high levels of noise in sensor/antenna electronics by throwing data and energy at the problem: observe longer, then store and process it all.
Matthieu Simeoni   +8 more
core   +1 more source

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

open access: yesAdvanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal   +12 more
wiley   +1 more source

Fast Reconstruction of 3D Density Distribution around the Sun Based on the MAS by Deep Learning

open access: yesThe Astrophysical Journal, 2023
This study is the first attempt to generate a three-dimensional (3D) coronal electron density distribution based on the pix2pixHD model, whose computing time is much shorter than that of the magnetohydrodynamic (MHD) simulation.
Sumiaya Rahman   +7 more
doaj   +1 more source

Visualization and Processing of Anisotropy in Imaging, Geometry, and Astronomy (Dagstuhl Seminar 18442).

open access: yesDagstuhl Reports, 2018
This report documents the program and the outcomes of Dagstuhl Seminar 18442, "Visualization and Processing of Anisotropy in Imaging, Geometry, and Astronomy", which was attended by 30 international researchers, both junior and senior. Directional preferences or anisotropies are encountered across many different disciplines and spatial scales.
Fuster, Andrea   +3 more
openaire   +3 more sources

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

open access: yesAdvanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar   +9 more
wiley   +1 more source

Benchmarking Dimensionality Reduction Methods for High-dimensional ALMA Image Cubes

open access: yesThe Astronomical Journal
High-dimensional astronomical data cubes provide a wealth of spectral and structural information that can be used to study astrophysical and chemical processes.
Haley N. Scolati   +3 more
doaj   +1 more source

Long-Term Continuous Double Station Observation of Faint Meteor Showers

open access: yesSensors, 2016
Meteor detection and analysis is an essential topic in the field of astronomy. In this paper, a high-sensitivity and high-time-resolution imaging device for the detection of faint meteoric events is presented. The instrument is based on a fast CCD camera
Stanislav Vítek   +3 more
doaj   +1 more source

Automatic Construction of Accurate Image Processing using AdaBoost [PDF]

open access: yes, 2009
Image processing and recognition technologies are required to solve various problems. We have already proposed the system which automatically constructs image processing with Genetic Programming (GP), Automatic Construction of Tree-structural Image ...
Ando, Jun, Nagao, Tomoharu
core  

Confinement in Metal‐Organic Frameworks as a Route to Harnessing Liquid Barocalorics in the Solid‐State

open access: yesAdvanced Functional Materials, EarlyView.
Encapsulation of solid–liquid barocalorics (BC) within MOFs harnesses their colossal BC performance whilst allowing active control of BC properties through BC‐MOF interactions. ABSTRACT Barocaloric (BC) effects at liquid–vapor transitions in hydrofluorocarbons drive most commercial technologies used for heating and cooling in the heating, ventilation ...
Ming Zeng   +8 more
wiley   +1 more source

WFST Astrometric Calibration. I. Modeling Global Geometric Distortion with Zernike Polynomials

open access: yesThe Astronomical Journal
Accurate modeling of geometric distortion (GD) is essential for precise astrometric calibration in wide-field imaging surveys. We present a self-calibration method based on Zernike polynomials, applied to imaging data from the Wide Field Survey Telescope
Chao Yang   +23 more
doaj   +1 more source

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