University of Seoul

Income Dynamics and Incident Esophageal Cancer: A Retrospective Cohort Study

BACKGROUND: Although socioeconomic status is a recognized risk factor for esophageal cancer (EC), most studies have examined socioeconomic status at a single time point. We investigated the association between income dynamics and incident EC. METHODS: We analyzed 3,361,091 Korean...

Gate Electrode Engineering for Tunable Synaptic Plasticity in Organic Electrochemical Neuromorphic Devices

ABSTRACT Organic electrochemical transistors (OECTs) are widely studied for neuromorphic hardware, as their volumetric electrochemical doping couples ionic and electronic transport to mimic biological synaptic transmission. Research on OECT‐based artificial synapses has focused p...

Hybridization of cobalt oxide with holey 2D niobium nitride nanosheets to promote oxygen evolution reaction

Abstract The control of defect structure and holey morphology has garnered increasing interest owing to its usefulness in regulating the functionalities of nanostructured materials. Here we report a hybridization approach to improve oxygen electrocatalyst performance of metal oxi...

Magnetic graphs for cavity quantum electrodynamics

Strengthening light-matter coupling has become a central challenge in cavity quantum electrodynamics (QED), enabling ultrafast gate operations, qubit protection, and deterministic nonlinear optics. As the coupling increases, even the simplest configuration—an atom interacting wit...

Tailoring Excitons, Biexcitons, and Trions Dynamics in CdSe/CdS Dot-in-Rod Nanomaterials for Light-Emitting Devices

Abstract CdSe-based core−shell nanomaterials offer the possibility of manipulating exciton dynamics and multi-exciton interactions by controlling the core and shell morphologies. In this context, CdSe/CdS dot-in-rod nanostructure (DiR) has emerged as an interesting class of nanom...

Incorporating spatio-temporal population dynamics into deep learning models for small-area population forecasting

Small-area population forecasting has become increasingly critical for establishing localized policies to address regional demographic disparities. Due to its minimal data requirements and methodological simplicity, trend extrapolation offers a practical approach given the limite...

Cycling-Induced Interfacial Reconstruction and Lithium-Storage Kinetics in Additive-Free Electrophoretic Deposition-Derived Methylammonium Lead Bromide Electrodes

Additive-free methylammonium lead bromide (MAPbBr3) electrodes were fabricated by electrophoretic deposition (EPD) directly on Cu foil to investigate Li-storage kinetics while minimizing electrochemical and interfacial contributions associated with polymer binders and conductive...

Neutron-Induced Defect-Driven Degradation of Ferroelectric Memory and Neuromorphic Synapses in α-In2Se3 FeS-FETs

Abstract Reliable ferroelectric semiconductor devices are essential for memory and neuromorphic technologies; however, neutron-induced degradation pathways remain unclear. Here, we establish an integrated experimental framework, linking defect characterization with device-level e...

Data and source code for "Code-space recovery for sample-based quantum diagonalization beyond native symmetry constraints"

This record contains the data and source code accompanying the paper “Code-space recovery for sample-based quantum diagonalization beyond native symmetry constraints.” The archive includes encoded and unencoded weighted sample distributions, disjoint-half sample pools used in the...

UAV Imagery for Ground Vehicle Visual Localization: Reference Database Construction versus Query-Stage Matching

Accurate localization of unmanned ground vehicles (UGVs) is difficult in global navigation satellite system (GNSS)-denied urban environments, and high-definition maps involve substantial construction and maintenance costs.Image-based reference maps have been studied as a cost-eff...

A nonabelian Wilson surface on a lattice

A bstract We analyze the nonabelian surface holonomy on a bipartite hypercubic lattice following a proposal in arXiv:1002.4636 [hep-th]. The bipartite structure of the lattice enables us to introduce spike string configurations. These spikes play a crucial role for the time evolu...

Discovery of Energy‐Localized Trap States via Opto‐Electrical Spectroscopy in UWBG Perovskite La:SrSnO 3 FETs

ABSTRACT Strontium stannate perovskite (SrSnO 3 ) is emerging as a promising material for next‐generation ultra‐wide bandgap (UWBG) semiconductors due to its high electron mobility and optical transparency. However, despite the critical importance of defect analysis to utilize La...

A data-driven modeling of public acceptance for fusion energy: analyzing public perceptions through future-centric empirical segmenting framework

Abstract As fusion energy approaches commercial viability, establishing strong public acceptance has become as critical as achieving technical success. This study develops a data-driven framework to analyze public perception of fusion technology, complementing traditional surveys...

Low-Energy Organic Ferroelectric Synaptic Transistors Enabled by Interfacially Engineered Gate Insulators

Abstract Solution-processed organic ferroelectric transistors are promising synaptic components for portable and wearable neuromorphic systems. However, compared with oxide-based platforms, these transistors generally require relatively thick ferroelectric gate layers and, conseq...

Automated Geometric Correction of OpenStreetMap Buildings via Context- and Boundary-Aware Segmentation

Abstract. OpenStreetMap (OSM) is a representative open geospatial platform that provides free access to major spatial objects, including buildings worldwide, constructed through crowdsourcing-based manual digitization. However, subjective differences among contributors and the ab...