Research works

Bond behavior of FRP bar in ultra-high-performance lightweight concrete (UHPLC)

The combination of ultra-high-performance lightweight concrete (UHPLC) and fiber-reinforced-polymer (FRP) bar offers an optimal solution in terms of lightweight construction, long-term durability, and enhanced structural strength. However, the bond behavior of FRP bars in high-st...

Shifting cognitive structures in human-AI collaborative learning design

This study examines collaborative learning design with a generative artificial intelligence (GenAI) co-pilot among in-service university English teachers in China. In a between-subjects experiment ( N = 60), epistemic network analysis (ENA) was used to model the situated discours...

Roles of molten salts in biomass pyrolysis: Heat and mass transfer, catalysis, and product regulation

Molten salt-assisted biomass pyrolysis is a promising way to fully utilize biomass resources for high value-added products. However, key aspects such as heat and mass transfer processes, catalytic pathway modulation and molten salt recovery have not yet been systematically review...

A systematic approach to quantitative nanoscale mass spectrometry using atomic force microscopy

Atomic force microscopy (AFM) enables mass sensing through resonance-frequency changes of microcantilevers, but quantitative measurements can be affected by calibration and environmental factors. Here, we investigated whether a calibrated AFM cantilever and controlled mass loadin...

Comparative Study on Breakdown Voltage Characteristics of Oil-Impregnated Pressboard for VSC-HVDC Converter Transformer According to Thickness and Layer Configuration

This paper experimentally investigates the DC breakdown characteristics of oil-impregnated pressboard with respect to specimen thickness and layer configuration. Breakdown tests were conducted ten times for each condition on single specimens of 1T, 2T, and 3T thickness (nominal 1...

HIV pre-exposure prophylaxis in US prison settings: a model-based cost-effectiveness study

Background HIV prevalence in prisons is three times higher than in the general community, and ongoing transmission risks highlight the importance of prevention, including pre-exposure prophylaxis (PrEP). We evaluated the effectiveness and cost-effectiveness of prison-based PrEP p...

Experimental Investigation of Graphene-Coated UHF Sensors for Improvement of PD Detection Sensitivity and Output

While numerous studies on detection improvement of UHF sensors in GIS system have focused mainly on the geometric optimization, the properties of the electrode materials have received comparatively little attention. Therefore, from the perspective of improvement of PD detection s...

From pollutants to power: Waste-derived materials in microbial fuel cell architecture and substrate utilization

Microbial fuel cells (MFCs) are emerging as a transformative bioelectrochemical technology capable of bridging the gap between circular waste management and sustainable, decentralized power generation. This review critically examines recent advances and emerging trends in waste-t...

Hydroelasticity-based structural optimisation of a stepped barge backbone beam

Structural optimisation that utilises ship hydroelasticity has significant gaps in marine structural design due to limitations in its practical applications. To address this issue, the present study initiates hydroelasticity-based structural optimisation using a scaled model of a...

Reading the forest through patents: A Europe-wide sector analysis

Innovation will shape how Europe's Forest sector responds to growing demand for low-carbon materials and bio-based products. However, the technological composition and geographical distribution of recent patenting activity in the sector remain insufficiently documented. This stud...

Diversionary feeding reshapes primate movement and reduces bark-stripping in pine plantations

Bark-stripping by wildlife in commercial tree plantations is a widespread management challenge that causes substantial economic losses and can create tensions between production and conservation goals. Effective mitigation has been hindered by limited understanding of the ecologi...

Development and Evaluation of ICP-based Map Matching Localization for Small Autonomous Marine Mobility

With the recent advancement of autonomous marine mobility, various studies have been conducted focusing on four modules of H/W and S/W architecture: localization, perception, decision/planning, and maneuvering/control. In marine mobility such as large ships and offshore structure...

Proposing an LLM-Based Framework for Automated Structuring and Verification of Korean Railway Software Safety Requirements

Railway signaling software must satisfy strict requirements—clarity, completeness, verifiability, and traceability—from the specification phase. KRS-SG-0069 requirements are written in Korean natural language, making manual structuring costly and expert-dependent. I propose a sem...

Organic acid-regulated self-assembly and anti-oxidation of low-defect Sn-Pb perovskite nanocrystals toward optical anti-counterfeiting applications

Tin-lead mixed perovskite nanocrystals (NCs) attract extensive research interest for narrow bandgap and low toxicity, yet inherent surface defects, weak crystallinity and easy Sn 2+ oxidation severely degrade their stability and usability. This work adopts four organic acids (FA,...

Towards an operational seasonal forecasting system for the Arabian Peninsula

Seasonal forecasting is a key tool for managing climate risks in arid regions, yet its performance over the Arabian Peninsula (AP) remains insufficiently characterized. In this study, we developed and evaluated a multi-model seasonal forecasting system for the AP, comparing simul...

Odnos indeksa tjelesne mase i učestalosti tjelesne aktivnosti između studenata medicine prve i druge godine studija

Cilj istraživanja bio je utvrditi povezanost indeksa tjelesne mase (ITM) i učestalosti tjelesne aktivnosti kod studenata prve i druge godine medicine u Rijeci (N=178). Spearmanova analiza utvrdila je slabu negativnu povezanost ITM-a i aktivnosti (ρ = -0,156; p<0,05). Između godin...

State-of-charge-dependent thermal runaway in NCM333 pouch lithium-ion batteries under external heating: Linking macroscopic failure responses with multiscale material degradation

Lithium-ion batteries (LIBs) are key components in electric vehicles. However, external overheating-induced thermal abuse is a major trigger of thermal runaway (TR), which seriously limits their large-scale commercial application. In this study, the physical and electrochemical b...

Datasheet-Based Empirical Trend Analysis of Gate Charge in Commercial Si, SiC Power MOSFETs

Gate charge is an important parameter related to the switching and gate-driving characteristics of power MOSFETs. This study presents a datasheet-based empirical trend analysis of 204 commercial 650 V and 1200 V Si and SiC MOSFETs. The relationships among gate charge, gate-drain...

Data-Driven Uncertainty Modeling-Based Energy Sharing and Operation Algorithm for PV-integrated Battery Charging and Swapping Station

In this study, we propose an optimal energy management algorithm for multiple photovoltaic (PV)-integrated battery charging and swapping stations (BCSSs), considering both energy sharing among BCSSs and their PV generation uncertainties. To minimize the system-wide operating cost...

Observability-Preserving Bad Data Processing for PMU-only Linear State Estimation of the Jeju Power System

Phasor measurement units (PMUs) provide time-synchronized voltage and current phasors, enabling linear state estimation in rectangular coordinates. This paper evaluates PMU-only linear state estimation for the Jeju power system using its actual PMU measurement channel configurati...