Results 111 to 120 of about 4,310 (287)

Magnetogram-matching Biot–Savart Law and Decomposition of Vector Magnetograms

open access: yesThe Astrophysical Journal
We generalize a magnetogram-matching Biot–Savart law (BS l ) from planar to spherical geometry. For a given coronal current density J , this law determines the magnetic field $\widetilde{{\boldsymbol{B}}}$ whose radial component vanishes at the surface ...
Viacheslav S. Titov   +5 more
doaj   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

open access: yesFlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong   +8 more
wiley   +1 more source

The development of automatic and solar imaging techniques for the accurate detection, merging, verification and tracking of solar filaments.

open access: yes, 2012
Based on a study of existing solar filament and tracking methods, a fully automated solar filament detection and tracking method is presented. An adaptive thresholding technique is used in a segmentation phase to identify candidate filament pixels.
Atoum, Ibrahim A.A.
core   +1 more source

How Reconnection-unfavored Magnetic Flux Emergence Suppresses Solar Filament Eruptions

open access: yesThe Astrophysical Journal Letters
Magnetic flux emergence is traditionally considered to be a key trigger of solar filament eruptions, yet its role in suppressing filament eruptions remains less understood.
Chengrui Zhou   +6 more
doaj   +1 more source

Neurolathyrism in Sub‐Saharan Africa—Assessing the Neurotoxic Risks of Lathyrus sativus Amid Drought and Food Security Challenges

open access: yesFood Safety and Health, EarlyView.
Representation of grass pea consumption in drought‐stricken sub‐Saharan Africa sustains nutrition, but excess β‐ODAP exposure due to multiple reasons triggers neurolathyrism, a progressive neurotoxic disorder. ABSTRACT Neurolathyrism is a progressive motor neuron disease due to the consumption of Lathyrus sativus (grass pea) over long periods.
Biruk Demisse Ayalew   +12 more
wiley   +1 more source

On the topology of global coronal magnetic fields

open access: yes, 2014
This thesis considers the magnetic topology of the global solar corona. To understand the magnetic topology we use the magnetic skeleton which provides us with a robust description of the magnetic field.
Edwards, Sarah J.
core  

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

open access: yesInfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Beyond Skin and Eyes: The Medical and Social Burden of Oculocutaneous Albinism in Africa: A Narrative Review

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT Oculocutaneous albinism (OCA) is a genetic disorder found worldwide, but its impact is particularly pronounced in the African continent. This results from both a higher prevalence and the persistent myths and superstitions surrounding the condition in many African communities.
Rebecca Donadoni   +3 more
wiley   +1 more source

The Bright Rim Prominences according to 2.5D Radiative Transfer

open access: yesThe Astrophysical Journal Letters
Solar prominences observed close to the limb commonly include a bright feature that, from the perspective of the observer, runs along the interface between itself and the underlying chromosphere. Despite several idealized models being proposed to explain
Jack M. Jenkins   +4 more
doaj   +1 more source

On the relationship between ELM filaments and solar flares (topical review)

open access: yes, 2007
Both solar flares and edge localized modes (ELMs) involve magnetized plasma eruptions which sporadically eject field-aligned filamentary structures into the surrounding, low density envelope: the far scrape-off layer (SOL) in the case of the tokamak and ...
Rasmussen, J. Juul   +7 more
core   +1 more source

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