39 hasil untuk "Jae-In Lee"
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Artikel Jurnal
Effect of replacement ratio of ferronickel slag aggregate on characteristics of cementitious mortars at different curing temperatures
…is focused on efficiently utilizing various industrial byproducts in the concrete industry to reduce environmental damage and achieve sustainable practices. In this study, we evaluated the mechanical properties of cementitious mortar using blast-furnace-slag powder (BSP) and a mixed aggregate of…
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Artikel Jurnal
Fast Scattered Far-Field Predictions for Super-Resolution ISAR Image Formation Using the Shooting and Bouncing Ray Technique
…$M \times N$ -time field calculations are required for $M$ frequencies. In this paper, to reduce the computation time for $M \times N$ -time field calculations, we introduce a fast scattered far-field prediction method for a super-resolution ISAR image of a complex PEC CAD model using the SBR…
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Artikel Jurnal
Compressive strength, chloride-ion-penetration resistance, and crack-recovery properties of self-healing cement composites containing cementitious material capsules and blast-furnace-slag aggregates
Blast-furnace-slag aggregate (BFSA), a by-product of the steel industry, is an eco-friendly natural, aggregate substitute used in mortar and concrete. However, research on self-healing cement composites using BFSA is rare. In this study, the compressive strength, chloride-ion-penetration…
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Artikel Jurnal
Zinc removal from smelter wastewater using wood bottom ash: Mechanistic insights and process optimization
Zinc (Zn) is extensively used in the electroplating, battery, and alloy industries, leading to the discharge of large volumes of Zn-contaminated wastewater. This study explored the use of wood bottom ash (WDA), a byproduct of thermal energy production, as a cost-effective adsorbent for the removal…
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Artikel Jurnal Teks lengkap
Dynamic RCS Estimation according to Drone Movement Using the MoM and Far-Field Approximation
…the electric field scattered from the rotating propellers is essential. In this paper, using the relative angle concept and far-field approximation, we propose a way to rapidly estimate the dynamic RCS of a drone with several propellers according to its movement. In addition, based on the fact that…
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Artikel Jurnal
Effects of Mixed-Slag Fine Aggregates on the Mechanical Performance and Chloride Ion Penetration Resistance of Geopolymer Composites
…FP sample. Additionally, the FA sample outperformed the FP sample by 6.7% in the highest strength samples. Increasing FSA content accelerated UPV, indicating a denser matrix. Finally, specimens containing mixed BSA and FSA exhibited higher chloride ion penetration resistance than those containing…
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Artikel Jurnal
Discovery of a de novo ITPR1 missense mutation in a patient with early‐onset cerebellar ataxia: A rare case report of spinocerebellar ataxia 29
…delay, and infantile hypotonia, and is primarily associated with variants in the ITPR1 gene. Cases of SCA29 in Asia are rarely reported, limiting our understanding of this disease. Methods A female Korean infant, demonstrating clinical features of SCA29, underwent evaluation and rehabilitation at…
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Artikel Jurnal Teks lengkap
Classification of Space Objects by Using Deep Learning with Micro-Doppler Signature Images
Radar target classification is an important task in the missile defense system. State-of-the-art studies using micro-doppler frequency have been conducted to classify the space object targets. However, existing studies rely highly on feature extraction methods. Therefore, the generalization…
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Artikel Jurnal
Multifunctional application of zeolite for ammonium removal and ammonia emission mitigation in wastewater, carcass leachate, and paddy
Abstract Excess ammonium in water and ammonia volatilization from soils pose serious environmental challenges, including eutrophication, air pollution, and nitrogen loss. This study evaluated the use of natural zeolite (clinoptilolite) for ammonium removal from wastewater and carcass leachate, as…
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Artikel Jurnal
Development and Experimental Validation of a Physics-Based Dynamic Model of a Grab-Type Ship Unloader Using the Modelica Language
This study presents the development and experimental validation of a physics-based dynamic model for a Grab-Type Ship Unloader (GTSU) system, implemented using the Modelica modeling language. The model implements the main mechanical components and dynamic interactions of the GTSU, including the…
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Artikel Jurnal Teks lengkap
Design and Performance Analysis of a Saturated Iron-Core Superconducting Fault Current Limiter for DC Power Systems
A saturated iron-core superconducting fault current limiter (SI-SFCL) can significantly limit the magnitude of the fault current and reduce the stress on circuit breakers in direct current (DC) power systems. The SI-SFCL consists of three main parts: one magnetic iron-core, one normal conductive…
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Artikel Jurnal
Electrochemical properties of a lithium-impregnated metal foam anode (LIMFA FeCrAl) for molten salt thermal batteries
Abstract Although numerous cathode materials with excellent properties have been developed for use in molten salt thermal batteries, similar progress is yet to be made with anode materials. Herein, a high-performance lithium-impregnated metal foam anode (LIMFA) is fabricated by impregnating molten…
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Artikel Jurnal Teks lengkap
Poncirus trifoliata Aqueous Extract Protects Cardiomyocytes against Doxorubicin-Induced Toxicity through Upregulation of NAD(P)H Dehydrogenase Quinone Acceptor Oxidoreductase 1
…and potential mechanisms of Poncirus trifoliata aqueous extract (PTA) in DICT. Changes in cell survival were assessed in H9c2 rat cardiomyocytes and MDA-MB-231 human breast cancer cells. The C57BL/6 mice were treated with DOX to induce DICT in vivo, and alterations in electrophysiological…
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Artikel Jurnal Teks lengkap
Comparative Analysis of XLPE and Thermoplastic Insulation-Based HVDC Power Cables
…properties, and studies related to cable systems are insufficient. In this paper, XLPE and TP cables were designed for application to VSC-based HVDC systems, and major characteristics such as electric field distribution and thermal stability were compared and analyzed through overvoltage…
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Artikel Jurnal Teks lengkap
Space Target Classification Improvement by Generating Micro-Doppler Signatures Considering Incident Angle
Classifying space targets from debris is critical for radar resource management as well as rapid response during the mid-course phase of space target flight. Due to advances in deep learning techniques, various approaches have been studied to classify space targets by using micro-Doppler…
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Artikel Jurnal
Sustainable carbonaceous material from mushroom logs for lead(II) immobilization: Structure, binding mechanism, and optimization
Lead (Pb) contamination poses serious risks to human health and ecosystems, underscoring the need for sustainable immobilization strategies. Here, a carbonaceous material derived from waste oak mushroom logs (OM) was investigated for Pb(II) removal, with emphasis on translating optimization into…
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Artikel Jurnal
Evaluating the potential of remediated dredged sediments as a growth medium for landscape plants: Effects of soil amendments and heavy metal uptake
This study investigated the potential application of dredged sediments as a medium for cultivating landscape plants, assessing plant performance in contaminated dredged sediment (CDS) and remediated dredged sediment (RDS), using commercial horticultural soil as a control. Three ornamental plant…
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Artikel Jurnal Teks lengkap
Combined Operation Analysis of a Saturated Iron-Core Superconducting Fault Current Limiter and Circuit Breaker for an HVDC System Protection
Recently, in order to overcome the difficulties of interrupting fault currents in multi-terminal direct current systems (MTDC), studies combining a saturated iron-core type superconducting current limiter (SFCL) and a direct current circuit breaker (DCCB) have been conducted. However, the effect of…
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Artikel Jurnal
Facial erythema after the treatment of dupilumab in SLE patient
…of both IL-4 and IL-13, the representative Th2 biomarkers. Recently, in addition to the treatment effects for atopic dermatitis (AD), there is an emerging adverse event as facial erythema. Case presentation A twenty-seven-year-old female patient developed erythema and desquamation on the face and…
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Artikel Jurnal
Alumina foam-based electrolyte for thermal batteries: design and performance evaluation
Abstract Thermal batteries are predominantly used in defense applications owing to their exceptional shelf life and high-power discharge capabilities. However, the electrolytes conventionally used in these batteries are typically fabricated via cold pressing, which imposes significant…