Hyun-Jung Kim
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Design and Performance Evaluation of Car Seat Heat Pump for Electric Vehicles Open
This study proposes and evaluates a car seat-integrated heat pump as localized air conditioning system for electric vehicles (EVs). The proposed system uses R1234yf and comprises a compressor, microchannel heat exchangers, an electronic ex…
A Kinematics-Constrained Grid-Based Path Planning Algorithm for Autonomous Parking Open
This paper presents a kinematics-constrained grid-based path planning algorithm that generates real-time, safe, and executable trajectories, thereby enhancing the performance and reliability of autonomous vehicle parking systems. The grid …
View article: Modulating Oxygen Transfer via A‐Site Doping in LaFeO <sub>3</sub> for Coke‐Resistant Chemical Looping Steam Methane Reforming
Modulating Oxygen Transfer via A‐Site Doping in LaFeO <sub>3</sub> for Coke‐Resistant Chemical Looping Steam Methane Reforming Open
Chemical looping steam methane reforming (CL‐SMR) is a promising technology for the simultaneous production of high‐purity hydrogen and syngas without the need for external gas separation units. This study evaluates a series of A‐site dope…
Numerical Analysis of Laser Thermal Ablation for Gingival and Peri‐Implant Inflammation Using Various Laser Irradiation Angles Open
Because of tooth decay and loss, many people use dental implants as tooth replacements. However, careless management can trigger an inflammatory reaction to an implant. Recently, various studies have been conducted on the sterilization and…
ReFoCUS: Reinforcement-guided Frame Optimization for Contextual Understanding Open
Recent progress in Large Multi-modal Models (LMMs) has enabled effective vision-language reasoning, yet the ability to understand video content remains constrained by suboptimal frame selection strategies. Existing approaches often rely on…
Two-Dimensional Reconstructed Image of a Subsurface Structure Using Continuous Scanned Photothermal Imaging Open
This study presents the two-dimensional (2D) image of a subsurface structure reconstructed using an imaging method based on the photothermal effect. The photothermal imaging method is based on the deflection method using two lasers: pump a…
View article: Design of a simple solution-processed universal shell for synthesizing reverse type-I core–shell structures toward high-efficiency water-splitting photocathodes
Design of a simple solution-processed universal shell for synthesizing reverse type-I core–shell structures toward high-efficiency water-splitting photocathodes Open
Matrix-type reverse type-I core–shell CNCs on Cu 2 O/CuO enhance photocurrent and stability over type-II structures by promoting efficient charge separation and providing both physical and electronic passivation.
View article: Designing multiple charge carrier separation pathways in core-type near infrared colloidal nanocrystal for broadband photodetector
Designing multiple charge carrier separation pathways in core-type near infrared colloidal nanocrystal for broadband photodetector Open
The new matrix-type ligand system enhances charge carrier transport between particles and passivates defects on particle surfaces by establishing a band-like state.
Breast cancer implant reconstructive surgery and radiotherapy: a retrospective analysis of medical records Open
RT did not significantly increase the complication or reoperation rates if reconstructive surgery was performed using implants. Therefore, RT should be performed in patients at a high risk of recurrence.
Adjuvant radiotherapy for ypN0 breast cancer patients receiving neoadjuvant chemotherapy: a systematic review and meta-analysis Open
For patients with ypN0 breast cancer who have undergone NAC and surgery, PMRT positively affected the survival outcome of patients. Therefore, it is necessary to undergo adjuvant RT to improve survival for ypN0 breast cancer patients.
View article: Recent Strategies of Oxygen Carrier Design in Chemical Looping Processes for Inherent CO2 Capture and Utilization
Recent Strategies of Oxygen Carrier Design in Chemical Looping Processes for Inherent CO2 Capture and Utilization Open
Chemical looping processes are considered a promising pathway for the efficient production of various fuels and chemicals. Temporally or spatially separated reduction and oxidation reaction in chemical looping can offer various advantages …
Optimization of photothermal therapy conditions through diffusion analysis based on the initial injection radius of <span>AuNPs</span> Open
Anticancer treatment is performed in various ways, and photothermal therapy (PTT) is gaining traction from a noninvasive treatment perspective. PTT is a treatment technique based on the photothermal effect that kills tumors by increasing t…
Are we there yet? Saturation analysis as a foundation for confidence in system dynamics modeling, applied to a conceptualization process using qualitative data Open
Saturation is a useful concept for system dynamics, yet it has not been widely explored or integrated into the modeling process. In this article, we describe saturation as a metaphor describing the point at which a conceptual representatio…
Tailored radiation dose according to margin width for patients with ductal carcinoma in situ after breast-conserving surgery Open
A 2 mm resection margin is considered adequate for ductal carcinoma in situ (DCIS). We assessed the effectiveness of a tailored radiation dose for margins < 2 mm and the appropriate margin width for high-risk DCIS. We retrospectively evalu…
Surface enrichment of lanthanum on Co3O4 for stable chemical looping combustion Open
This study introduced a durable oxygen carrier with surface enrichment of lanthanum on Co3O4 for chemical looping combustion. It employed the surface enrichment in order to optimize the usage of rare earth lanthanum with secured stability …
M&A valuation for going concern: A case study using Samsung electronics’ adjusted EBITDA Multiple Open
This study analyzes the limitations of EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) Multiple from the perspective of the going concern principle. A new Adjusted EBITDA Multiple that complements the limitations of…
Improvement of Chemical Stability of Perovskite Nanocrystals as a Photoelectrochemical Catalyst for Hydrogen Evolution Reaction Open
Recent advances in the synthesis and processing of perovskite materials have led to significant improvements in their stability under harsh conditions, making them increasingly attractive for use as photo and photoelectrochemical catalysts…
All‐in‐One Process for Color Tuning and Patterning of Perovskite Quantum Dot Light‐Emitting Diodes Open
Although post‐synthetic anion exchange allows halide perovskite quantum dots to easily change the optical bandgap of materials, additional exchange of shorter ligands is required to use them as active materials in optoelectronic devices. I…
A Feynman-Kac approach for the spatial derivative of the solution to the Wick stochastic heat equation driven by time homogeneous white noise Open
We consider the (unique) mild solution $u(t,x)$ of a 1-dimensional stochastic heat equation on $[0,T]\times\mathbb R$ driven by time-homogeneous white noise in the Wick-Skorokhod sense. The main result of this paper is the computation of t…
Single-machine scheduling with energy generation and storage systems Open
This paper considers a single-machine scheduling problem with sequence-dependent setup times and energy-generation and storage systems. Each job requires a sequence-dependent setup to be processed on the machine, and both setup and process…
Backward Sequence Analysis for Single-Armed Cluster Tools Open
This paper analyzes a backward sequence for single-armed cluster tools with processing time variations. A fundamental cycle is defined with the backward sequence, and a formula for the cycle time is derived by considering processing time v…
Statistical analysis of discretely sampled semilinear SPDEs: a power\n variation approach Open
Motivated by problems from statistical analysis for discretely sampled SPDEs,\nfirst we derive central limit theorems for higher order finite differences\napplied to stochastic process with arbitrary finitely regular paths. These\nresults …
Statistical analysis of discretely sampled semilinear SPDEs: a power variation approach Open
Motivated by problems from statistical analysis for discretely sampled SPDEs, first we derive central limit theorems for higher order finite differences applied to stochastic process with arbitrary finitely regular paths. These results are…
Efficiency Analysis of Public Library Services Based on Establishing Entity and Outsourcing Open
This study investigates the difference in service efficiency based on establishing entity and outsourcing in 847 public libraries in Korea. The public libraries were categorized into three types based on establishing entity and outsourcing…