14 citations · 48 across the 9 of their papers we have counts for
10 papers
Plasmoid-Trapped Condensation Associated with a Transient Thermal-Instability-Like Process in Chromospheric Magnetic Reconnection
Abdullah Zafar, Lei Ni, Samrat Sen +4
We perform high-resolution 2.5D single-fluid magnetohydrodynamic (MHD) simulations to explore the development of cool-dense structures within plasmoids during chromospheric magneti…
Kinetic Processes to Radio Burst: First Observational-driven Study in Coronal Loops
Mehdi Yousefzadeh, Marian Karlicky, Artem Koval +3
Understanding the origin of coherent solar radio bursts requires linking macroscopic coronal structures with the kinetic processes responsible for wave generation. We investigate e…
Coronary Artery Segmentation and Vessel-Type Classification in X-Ray Angiography
Mehdi Yousefzadeh, Siavash Shirzadeh Barough, Ashkan Fakharifar +12
X-ray coronary angiography (XCA) is the clinical reference standard for assessing coronary artery disease, yet quantitative analysis is limited by the difficulty of robust vessel s…
GraphDerm: Fusing Imaging, Physical Scale, and Metadata in a Population-Graph Classifier for Dermoscopic Lesions
Mehdi Yousefzadeh, Parsa Esfahanian, Sara Rashidifar +5
Introduction. Dermoscopy aids melanoma triage, yet image-only AI often ignores patient metadata (age, sex, site) and the physical scale needed for geometric analysis. We present Gr…
The Efficiency of Harmonic Emissions Excited by Energetic Electrons in Coronal Loops
Mehdi Yousefzadeh, Alexey Kuznetsov, Yao Chen +1
Magnetic reconnection is a key process that drives the energy release in solar flares. This process can occur at multiple locations along the coronal loop. The reconnection generat…
Emission Characteristics of Energetic Electrons with Crescent-shaped Velocity Distributions
Mehdi Yousefzadeh
Solar flares release magnetic energy through reconnection, accelerating electrons into nonthermal velocity distributions, including crescent-shaped electron populations. These ener…
Harmonic Electron Cyclotron Maser Emission along the Coronal Loop
Mehdi Yousefzadeh, Yao Chen, Hao Ning +1
Efficient radiation at second and/or higher harmonics of Wce has been suggested to circumvent the escaping difficulty of the electron cyclotron maser emission mechanism when it is…
Harmonic maser emissions from electrons with loss-cone distribution in solar active regions
Hao Ning, Yao Chen, Sulan Ni +4
Electron cyclotron maser emission (ECME) is regarded as a plausible source for the coherent radio radiations from solar active regions (e.g., solar radio spikes). In this Letter, w…
Harmonic elctron-cyclotron maser emissions driven by energetic electrons of the horseshoe distribution with application to solar radio spikes
Hao Ning, Yao Chen, Sulan Ni +4
Content. Electron-cyclotron maser emission (ECME) is the favored mechanism for solar radio spikes and has been investigated extensively since the 1980s. Most studies relevant to so…
Harmonic ECME Excited by Energetic Electrons Travelling Inside A Coronal Loop
M. Yousefzadeh, H. Ning, Y. Chen
A complete understanding of solar radio bursts requires developing numerical techniques which can connect large-scale activities with kinetic plasma processes. As a starting point,…