Yajie Chen
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View article: Simulations of Structured Upflows from Plumes and Their Connection to the Solar Wind
Simulations of Structured Upflows from Plumes and Their Connection to the Solar Wind Open
Small-scale transient jetlet activity and associated upflows from coronal hole plumes are potential sources of the solar wind. To elucidate the magnetic origins and driving mechanisms of such upflows, we perform three-dimensional (3D) radi…
View article: EVA-X: a foundation model for general chest x-ray analysis with self-supervised learning
EVA-X: a foundation model for general chest x-ray analysis with self-supervised learning Open
View article: Magnetic reconnection sustains the mass budget of the solar wind
Magnetic reconnection sustains the mass budget of the solar wind Open
The solar wind originates from open magnetic field regions on the Sun, but the processes relevant to its origin remain unsolved. We present a self-consistent numerical model of the source region of the wind, in which jets similar to those …
View article: Magnetic reconnection sustains the mass budget of the solar wind
Magnetic reconnection sustains the mass budget of the solar wind Open
The solar wind originates from regions of open magnetic fields on the Sun, but the relevant processes remain unsolved. We present a self-consistent numerical model of the source region of the wind, in which jets similar to those observed o…
View article: Three-dimensional magnetic reconnection mediated with plasmoids and the resulting multithermal emissions in the cool atmosphere of the Sun
Three-dimensional magnetic reconnection mediated with plasmoids and the resulting multithermal emissions in the cool atmosphere of the Sun Open
Context. Flux emergence is ubiquitous in the Sun’s lower atmosphere. The emerging flux can reconnect with the pre-existing magnetic field. Aims. We aim to investigate plasmoid formation and the resulting multithermal emissions during the t…
View article: Enhanced magnetic activity in rapidly rotating binary stars
Enhanced magnetic activity in rapidly rotating binary stars Open
Stellar activity is fundamental to stellar evolution and the formation and habitability of exoplanets. The interaction between convective motions and rotation in cool stars results in a dynamo process that drives magnetic surface activity.…
View article: Enhanced magnetic activity in rapidly rotating binary stars
Enhanced magnetic activity in rapidly rotating binary stars Open
View article: Unveiling the Dynamics and Genesis of Small-scale Fine-structure Loops in the Lower Solar Atmosphere
Unveiling the Dynamics and Genesis of Small-scale Fine-structure Loops in the Lower Solar Atmosphere Open
Recent high-resolution solar observations have unveiled the presence of small-scale loop-like structures in the lower solar atmosphere, often referred to as unresolved fine structures, low-lying loops, and miniature hot loops. These struct…
View article: A Neural Symbolic Model for Space Physics
A Neural Symbolic Model for Space Physics Open
In this study, we unveil a new AI model, termed PhyE2E, to discover physical formulas through symbolic regression. PhyE2E simplifies symbolic regression by decomposing it into sub-problems using the second-order derivatives of an oracle ne…
View article: Unveiling the Dynamics and Genesis of Small-scale Fine Structure Loops in the Lower Solar Atmosphere
Unveiling the Dynamics and Genesis of Small-scale Fine Structure Loops in the Lower Solar Atmosphere Open
Recent high-resolution solar observations have unveiled the presence of small-scale loop-like structures in the lower solar atmosphere, often referred to as unresolved fine structures, low-lying loops, and miniature hot loops. These struct…
View article: A Neural Symbolic Model for Space Physics
A Neural Symbolic Model for Space Physics Open
In this study, we unveil a new AI model, termed PhyE2E, to discover physical formulas through symbolic regression. PhyE2E simplifies symbolic regression by decomposing it into sub-problems using the second-order derivatives of an oracle ne…
View article: Engineering of Selenide-Based Yolk-Shell Dodecahedra with Synergistic Heterojunctions and Zinc Vacancies for Boosted Co2 Photoreduction
Engineering of Selenide-Based Yolk-Shell Dodecahedra with Synergistic Heterojunctions and Zinc Vacancies for Boosted Co2 Photoreduction Open
View article: Engineering of 2d/2d Coal-Ldh/Bi2moo6 S-Scheme Heterojunction Nanoflake Films for Efficient Co2 Photoreduction to Co with High Selectivity
Engineering of 2d/2d Coal-Ldh/Bi2moo6 S-Scheme Heterojunction Nanoflake Films for Efficient Co2 Photoreduction to Co with High Selectivity Open
View article: Efficient CO2 photoreduction catalyzed by in-situ engineered Cu-BTC@CoNi-LDH hollow octahedron heterojunction
Efficient CO2 photoreduction catalyzed by in-situ engineered Cu-BTC@CoNi-LDH hollow octahedron heterojunction Open
View article: Coronal Explorer for the Sun and Nearby Stars
Coronal Explorer for the Sun and Nearby Stars Open
View article: Porosity identification using residual PPTransformer network
Porosity identification using residual PPTransformer network Open
Precisely estimating the carbonate’s porosity is essential for subsurface reservoir characterization. However, conventional methods for obtaining porosity using either core measurements or logging interpretation are expensive and inefficie…
View article: Optimization of new energy control parameters based on the atomic orbital search algorithm
Optimization of new energy control parameters based on the atomic orbital search algorithm Open
In order to mitigate the issues of power angle stability and transient overvoltage resulting from the integration of large-scale new energy sources into the centralized grid and the introduction of high-voltage direct current into the deli…
View article: Electromagnetic scattering characterization of a layered rough soil ground
Electromagnetic scattering characterization of a layered rough soil ground Open
As the density of additional ultra-high voltage alternating current and direct current transmission lines in China increases, so does the passive interference from transmission lines to various types of equipment. At present, the objective…
View article: Transition Region Brightening in a Moss Region and Their Relation with Lower Atmospheric Dynamics
Transition Region Brightening in a Moss Region and Their Relation with Lower Atmospheric Dynamics Open
Small-scale brightenings (SBs) are commonly observed in the transition region (TR) that separates the solar chromosphere from the corona. These brightenings, omnipresent in active region patches known as “moss” regions, could potentially c…
View article: Investigating explosive events in a 3D quiet-Sun model: Transition region and coronal response
Investigating explosive events in a 3D quiet-Sun model: Transition region and coronal response Open
Context. Transition region explosive events are characterized by the non-Gaussian profiles of the emission lines that form at transition region temperatures, and they are believed to be manifestations of small-scale reconnection events in …
View article: Investigating explosive events in a 3D quiet-Sun model: Transition region and coronal response
Investigating explosive events in a 3D quiet-Sun model: Transition region and coronal response Open
Transition region explosive events are characterized by non-Gaussian profiles of the emission lines formed at transition region temperatures, and they are believed to be manifestations of small-scale reconnection events in the transition r…
View article: Bidirectional propagating brightenings in arch filament systems observed by Solar Orbiter/EUI
Bidirectional propagating brightenings in arch filament systems observed by Solar Orbiter/EUI Open
Arch filament systems (AFSs) are chromospheric and coronal manifestations of emerging magnetic flux. Using high spatial resolution observations taken at a high cadence by the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter, we iden…
View article: Bidirectional propagating brightenings in arch filament systems observed by Solar Orbiter/EUI
Bidirectional propagating brightenings in arch filament systems observed by Solar Orbiter/EUI Open
Arch filament systems (AFSs) are chromospheric and coronal manifestations of emerging magnetic flux. Using high spatial resolution observations taken at a high cadence by the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter, we iden…
View article: Enhanced magnetic activity in rapidly rotating binary stars
Enhanced magnetic activity in rapidly rotating binary stars Open
The interaction between convective motions and rotation in cool stars results in a dynamo process that drives magnetic surface activity1, 2. In single stars, activity increases with rotation rate until it saturates for stars with rotation …
View article: Transition Region Brightenings in a Moss Region and their Relation with Lower Atmospheric Dynamics
Transition Region Brightenings in a Moss Region and their Relation with Lower Atmospheric Dynamics Open
Small-scale Brightenings (SBs) are commonly observed in the transition region that separates the solar chromosphere from the corona. These brightenings, omnipresent in active region patches known as "moss" regions, could potentially contri…
View article: Evidence for Plasmoid-mediated Magnetic Reconnection during a Small-scale Flare in the Partially Ionized Low Solar Atmosphere
Evidence for Plasmoid-mediated Magnetic Reconnection during a Small-scale Flare in the Partially Ionized Low Solar Atmosphere Open
Magnetic reconnection plays a crucial role in the energy release process for different kinds of solar eruptions and activities. The rapid solar eruption requires a fast reconnection model. Plasmoid instability in the reconnecting current s…
View article: Magnetic helicity evolution during active region emergence and subsequent flare productivity
Magnetic helicity evolution during active region emergence and subsequent flare productivity Open
Aims. Solar active regions (ARs), which are formed by flux emergence, serve as the primary sources of solar eruptions. However, the specific physical mechanism that governs the emergence process and its relationship with flare productivity…
View article: Magnetic helicity evolution during active region emergence and subsequent flare productivity
Magnetic helicity evolution during active region emergence and subsequent flare productivity Open
Aims. Solar active regions (ARs), which are formed by flux emergence, serve as the primary sources of solar eruptions. However, the specific physical mechanism that governs the emergence process and its relationship with flare productivity…
View article: A magnetic reconnection model for the hot explosion with both ultraviolet and H<i>α</i> wing emissions
A magnetic reconnection model for the hot explosion with both ultraviolet and H<i>α</i> wing emissions Open
Context. Ellerman bombs (EBs) with significant H α wing emissions and ultraviolet bursts (UV bursts) with strong Si IV emissions are two kinds of small transient brightening events that occur in the low solar atmosphere. The statistical ob…
View article: A magnetic reconnection model for the hot explosion with both ultraviolet and Hα wing emissions
A magnetic reconnection model for the hot explosion with both ultraviolet and Hα wing emissions Open
Ellerman bombs (EBs) with significant H$α$ wing emissions and ultraviolet bursts (UV bursts) with strong Si IV emissions are two kinds of small transient brightening events that occur in the low solar atmosphere.We numerically investigated…