5 papers
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…