Ulsan National Institute of Science and Technology

An Azacrown Electrolyte for High‐Performance Sodium‐Ion Batteries

ABSTRACT Sodium (Na)‐ion batteries (SIBs) are promising energy storage devices. However, they still do not exhibit satisfactory performance metrics largely because the relatively large ionic radius of Na + results in unfavorable solvation structures. This work demonstrates that u...

Tunable TIRF Microscopy: Simultaneous Visualization of Intracellular Dynamics at Multiple Depths

ABSTRACT We propose and demonstrate tunable total internal reflection fluorescence (TIRF) microscopy, a new method to achieve dynamic customized depth‐selective fluorescence excitation across the field of view. By simply adding a digital micromirror device (DMD) and a spatial fil...

Estimating Parkinson’s disease finger tapping severity from RGB videos using a temporal–statistical–spectral feature fusion framework

Parkinson’s disease (PD) is characterized by progressive motor impairment, and finger tapping is widely used in the MDS-UPDRS (Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale) to assess bradykinesia. However, clinical scoring is limite...

An Adaptive Dynamic AI-driven ParameTerization (ADAPT) framework for global hourly gross primary productivity estimation

High-frequency estimation of gross primary productivity (GPP) is crucial for understanding terrestrial carbon dynamics and ecosystem responses to rapidly changing environmental conditions. However, accurate GPP estimation at short-term timescales remains challenging, as it requir...

Fast Electronic Memristors with Improved Retention and Synaptic Functionality Enabled by Tri-TaOx Engineering

Artificial synaptic memristors require fast switching, stable retention, low variability, and linear conductance modulation, but achieving these properties simultaneously is difficult in electronic bipolar resistive switching (e-BRS) devices. In this study, a tri-TaOx memristor i...

A gradient flow for the porous medium equations with Dirichlet boundary conditions

We consider the gradient flow structure of the porous medium equations with non-negative constant Dirichlet boundary conditions. We construct weak solutions to the equations via the minimizing movement scheme by considering an entropy functional with respect to W b 2 distance, wh...

System-level reconstruction of RpoD, RpoS, and RpoN regulatory networks in Pseudomonas putida KT2440

Abstract Background Pseudomonas putida KT2440 is a widely recognized industrial chassis with broad metabolic versatility. Its large repertoire of σ-factors enables coordinated transcriptional response to diverse environmental and physiological conditions, yet the regulatory lands...

Lipopolysaccharide Architecture Dictates Susceptibility to Predation by Bdellovibrio bacteriovorus

Predatory bacteria such as Bdellovibrio bacteriovorus exert strong top-down control on Gram-negative bacterial populations, yet the prey surface determinants governing susceptibility to predation remain incompletely resolved. Lipopolysaccharide (LPS) is a dominant structural comp...

Electrolyte Lubricants for Solid-State Batteries

Abstract Solid-state batteries (SSBs) promise higher energy density and improved safety, but interparticle voids and unstable solid–solid interfaces still limit their performance. Here, we translate the concept of lubrication into an electrolyte-lubrication strategy for SSBs. We...

Deterministic Switching‐Path Engineering of CMOS‐Integrated 2D Memristors for Neuromorphic Computing

ABSTRACT Two‐dimensional (2D) memristors are promising for low‐power and high‐speed neuromorphic hardware. However, their performance under circuit‐level constraints remains limited because resistive switching relies on native defects, hindering precise control of filament format...

Light- and Temperature-Programmed Block Copolymer Capsules with Tunable Shell Nanostructures

Abstract Polymer capsules capable of adopting distinct shell nanostructures in response to external stimuli are attractive microcompartments for encapsulation, separation, and triggered release. Realizing such capsules requires orthogonal control, in which distinct stimuli indepe...

Controlling Molecular Packing via Side‐Chain Engineering of BDTT‐Based Guest Donors for High‐Performance Ternary Organic Solar Cells

Applying the ternary bulk heterojunction (BHJ) strategy in organic solar cells (OSCs) has emerged as an effective approach to enhance photovoltaic performance. In this work, two newly designed wide-bandgap polymer donors, BDT-TS-6 and BDT-TS-20, were developed by incorporating a...

Spatially Regulated Silicon Clusters in Trimodal Composite Anodes for High‐Energy Lithium‐Ion Batteries

ABSTRACT Fast‐charging, high‐energy lithium‐ion batteries are central to electrified transportation and grid‐scale energy storage, but their advancement is limited by the instability of high‐capacity anode materials such as silicon (Si). Although graphite (G)‐Si composites offer...

Oxygen-dependent subcellular redistribution of PHD3 links the hypoxic microenvironment to mitochondrial metabolic reprogramming in ccRCC

Abstract Clear cell renal cell carcinoma (ccRCC) is characterized by profound metabolic dysregulation, with both prolyl hydroxylase domain protein 3 (PHD3) and pyruvate carboxylase (PC) independently implicated in disease progression. Although each influences patient outcomes, a...

A necroptotic-to-apoptotic signaling axis underlies inflammatory bowel disease

ABSTRACT Inflammatory bowel disease (IBD) is a chronic condition caused by altered cytokine signaling, maladaptive immunity, dysbiosis, and intestinal barrier dysfunction. Patients with IBD receive therapy to correct these imbalances and achieve remission. However, most patients...

Memristive Motion‐Streak Neuron for Spatiotemporal Multiple Object Detection

ABSTRACT Conventional artificial vision systems process dynamic scenes inefficiently by reconstructing motion from discrete frames, which requires post‐processing. In contrast, real‐world environments containing multiple moving objects demand sensor‐level discrimination. This wor...

Adaptive generalization and efficient learning under uncertainty

Abstract People often use recognizable features to infer the value of novel consumables. This “generalization” strategy is known to be beneficial in stable environments, such that individuals can use previously learned rules and values in efficiently exploring new situations. How...

Sticker Valence Governs Chain Collapse and Liquid‐Liquid Phase Separation in Peptide‐Inspired Associative Polymers

Biomolecular condensates, including membraneless organelles, form through liquid-liquid phase separation (LLPS) driven by sequence-specific associations within intrinsically disordered protein regions. Understanding how sticker valence governs LLPS is essential for predicting pat...

Influenceof Anti-Agglomerants and Water Cut on FlowAssurance and CO2 Capture in a Model Water-in-Oil Systemfor Maritime Applications

Abstract This study investigated the effects of antiagglomerant (AA) concentration and water cut (WC) on flow assurance within a gas hydrate-based CO2 capture and transport using a model water-in-oil (W/O) system for maritime applications. Phase equilibrium measurements revealed...

Building a Physics-Aware AI Ecosystem for Solid-State Hydrogen Storage Materials

Abstract Hydrogen storage remains a central bottleneck for scalable hydrogen energy systems due to the multiscale and coupled nature of the thermodynamics, kinetics, and microstructural evolution of hydrogen storage materials (HSMs). Although artificial intelligence (AI) has acce...