Results 131 to 140 of about 1,095,612 (284)

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

Development and Evaluation of a Low‐Cost, Semi‐Automated Camera Trap for Surveying Bumble Bee Communities

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Camera traps are emerging as a useful tool for noninvasive insect monitoring; however, it remains unclear how to lure diurnal insects to traps, how to detect them upon arrival, and how camera‐based methods compare to conventional sampling. We developed a low‐cost, open‐source camera trap to monitor wild bumble bees in agricultural fields. We found that
Michael P. Getz   +4 more
wiley   +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

Circular Economy Pathways for End‐of‐Life Wind Turbine Blades and Their Environmental Implications and Potential Urban Applications

open access: yesSustainable Development, EarlyView.
ABSTRACT The rapid expansion of renewable energy, particularly wind power, is expected to generate large volumes of composite waste from end‐of‐life (EoL) turbine blades in the coming decades. Managing this material represents a significant environmental and logistical challenge worldwide.
Plinio Centoamore   +6 more
wiley   +1 more source

Intelligent Continuum Micromachines in Complex Confined Spaces

open access: yesSmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai   +7 more
wiley   +1 more source

The Structures, Mass Motions And Footpoints Of Solar Filaments [PDF]

open access: yes, 2014
This thesis focuses on identifying the mechanism by which solar filaments acquire mass. Some of the speculations for how a filament gets its mass are 1) injection of mass from the chromosphere into the filament structure, and 2) condensation of mass from
Venkataramanasastry, Aparna
core   +1 more source

Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration

open access: yesThe Astrophysical Journal
Although numerous works have concentrated on minifilament eruption in complex configurations, the detailed triggering mechanism is still an open question. Using the observational data from the New Vacuum Solar Telescope and Solar Dynamics Observatory, we
Liping Yang   +7 more
doaj   +1 more source

Forbush Effects Associated with Disappeared Solar Filaments

open access: yesAtmosphere
The Forbush effects (FEs) in cosmic rays associated with interplanetary disturbances caused by the disappearance of solar filaments (DSFs) outside active regions (ARs) are considered.
Olga Kryakunova   +6 more
doaj   +1 more source

MXene‐Based Flexible Memory and Neuromorphic Devices

open access: yesSmall, EarlyView.
The unique two‐dimensional structure, excellent electrical conductivity, and diverse surface groups of MXenes have garnered significant attention. Coupled with their exceptional flexibility, MXene‐based devices hold immense potential for flexible memory and neuromorphic systems. This review comprehensively discusses the fundamentals of flexible devices,
Yan Li   +13 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

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