Results 1 to 10 of about 45,347 (259)

A Novel Method to Determine the Handover Threshold Based on Reconfigurable Factor Graph for LEO Satellite Internet Network

open access: yesIEEE Access, 2022
Satellite Internet Network (SIN) will be the next heat issue in the ongoing research of 6G. The users need to keep operating handover between different beams or satellites in an extremely high frequency for the satellite to move at high speed in Low ...
Wenliang Lin   +9 more
doaj   +1 more source

Energy dissipation, weak solutions, and sharp stability thresholds for boussinesq nematic convection

open access: yesJournal of Physics Communications
We study a thermally driven nematohydrodynamic model obtained by coupling Boussinesq convection to a Ginzburg–Landau relaxation of the director field. We prove the fundamental energy–dissipation identity, construct global weak solutions in three spatial ...
Junyu Luo, Jing He
doaj   +1 more source

Edge detection based on the Shannon Entropy by piecewise thresholding on remote sensing images

open access: yesIET Computer Vision, 2015
Edge detection is one of the most important concepts used in processing of remote sensing images. The aim of edge detection is to mark the points of an image at which the rate of brightness changes sharply. Sharp changes in image features often represent
Abbas Kiani, Mahmod Reza Sahebi
doaj   +1 more source

Compact ssscc¯ pentaquark states predicted by a quark model

open access: yesPhysics Letters B, 2019
Several compact ssscc¯ pentaquark resonances are predicted in a potential quark model. The Hamiltonian is the best available one, which reproduces the masses of the low-lying charmed and strange hadrons well.
Qi Meng   +6 more
doaj   +1 more source

Idiosyncrasies of volcanic sulfur viscosity and the triggering of unheralded volcanic eruptions

open access: yesFrontiers in Earth Science, 2016
Unheralded blue-sky eruptions from dormant volcanoes cause serious fatalities, such as at Mt. Ontake (Japan) on 27 September 2014. Could these events result from magmatic gas being trapped within hydrothermal system aquifers by elemental sulfur (Se ...
Teresa eScolamacchia, Shane eCronin
doaj   +1 more source

Case Report: Plasticity in Central Sensory Finger Representation and Touch Perception After Microsurgical Reconstruction of Infraclavicular Brachial Plexus Injury

open access: yesFrontiers in Neuroscience, 2022
After brachial plexus injury (BPI), early microsurgery aims at facilitating reconnection of the severed peripheral nerves with their orphan muscles and sensory receptors and thereby reestablishing communication with the brain.
Jennifer Ernst   +8 more
doaj   +1 more source

Impact of Surface Soil Moisture Retrieval Time Frequency on Land Surface Regime Detection Skill

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Soil moisture (θ) thresholds associated with nonlinear changes in soil water loss rates can be used to detect transitions between land surface water flux regimes.
Wade T. Crow   +2 more
doaj   +1 more source

Audio Stream Segmentation Based on Nonlinear Diffusion Filtering (Perona–Malik Approach)

open access: yesIEEE Access
The segmentation of continuous audio streams into distinct units, such as individual news stories, is a critical step for efficient indexing and retrieval in multimedia applications.
Vasile-Silviu Sarmasanu   +3 more
doaj   +1 more source

Study on Heat Effect of High-Power Continuous Wave Laser on Steel Cylinder

open access: yesApplied Sciences, 2020
This paper investigates the heat effects of continuous high-power lasers on steel cylinders. A theoretical model combining the mechanical characteristics and heat transfer of the steel cylinder that irradiated by a high-power laser is established ...
Liu Yang   +5 more
doaj   +1 more source

Estimating Dengue Outbreak Thresholds in West Africa: A Comprehensive Analysis of Climatic Influences in Burkina Faso, 2018–2024

open access: yesTropical Medicine and Infectious Disease
Background: Dengue, transmitted by Aedes spp. mosquitoes, poses significant public health challenges in Burkina Faso. This study investigated outbreak thresholds, utilizing historical data since 2018 to explore the climatic impacts on dengue transmission
John Otokoye Otshudiema   +8 more
doaj   +1 more source

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