Hak Yong Kim
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View article: Co-Polymerized P(AN-co-IA)-Derived Electrospun Nanofibers with Improved Graphitization via Dual-Metallocene Integration at Low Temperature
Co-Polymerized P(AN-co-IA)-Derived Electrospun Nanofibers with Improved Graphitization via Dual-Metallocene Integration at Low Temperature Open
In this study, COOH-functionalized co-polymer of acrylonitrile and itaconic acid (P(AN-co-IA)) is synthesized via free radical copolymerization using DMSO as solvent. The continuous non-aligned carbon nanofibers (CNFs) with different amoun…
View article: Draw-Induced Structural Optimization of PAN-Based Carbon Fibers During High-Temperature Carbonization
Draw-Induced Structural Optimization of PAN-Based Carbon Fibers During High-Temperature Carbonization Open
This study investigates the effect of tensile strain during high-temperature carbonization on the microstructural development and mechanical properties of polyacrylonitrile (PAN)-based carbon fibers. The wet-spun stabilized PAN precursor f…
View article: Korean Spoken Accent Identification Using T-vector Embeddings
Korean Spoken Accent Identification Using T-vector Embeddings Open
In this paper, we introduce a spoken accent identification system for the Korean language, which utilize t-vector embeddings extracted from state-of-the-art TitaNet neural network. To implement the Korean spoken accent identification syste…
View article: Effect of Boron and Iron at Various Concentrations on the Catalytic Graphitization of the Polyacrylonitrile Derived from the Polymerization of Acrylonitrile
Effect of Boron and Iron at Various Concentrations on the Catalytic Graphitization of the Polyacrylonitrile Derived from the Polymerization of Acrylonitrile Open
In this study, a novel and facile approach of catalytic graphitization was adopted for the preparation of graphitized polyacrylonitrile (PAN)-derived carbon. Pure PAN and boron-introduced PAN were derived from the monomer acrylonitrile usi…
View article: In-Situ Polymerization for Catalytic Graphitization of Boronated PAN Using Aluminum and Zirconium Containing Co-Catalysts
In-Situ Polymerization for Catalytic Graphitization of Boronated PAN Using Aluminum and Zirconium Containing Co-Catalysts Open
In-situ polymerization is an effective method for integrating co-catalysts homogeneously into the polymer matrix. Polyacrylonitrile (PAN)-derived highly graphitized carbon is a state-of-the-art material with diverse applications, including…
View article: Analysis of functionality and antimicrobial activity in fermented vinegar using <i>Schisandra chinensis</i> by-products
Analysis of functionality and antimicrobial activity in fermented vinegar using <i>Schisandra chinensis</i> by-products Open
In this study, we aimed to develop high value-added fermented vinegar using Schisandra chinensis by-products, and to confirm to the content of antioxidant activity, antibacterial activity, and bioactive substances.DPPH radical scavenging a…
View article: Effect of Salt Variability on the Low-Temperature Metal-Catalyzed Graphitization of PAN/DMSO Solutions for the Synthesis of Nanostructured Graphitic Carbon
Effect of Salt Variability on the Low-Temperature Metal-Catalyzed Graphitization of PAN/DMSO Solutions for the Synthesis of Nanostructured Graphitic Carbon Open
Graphitic carbon plays a pivotal role in numerous technological applications, including energy storage, energy conversion, and different fields of material science. The transformation of amorphous carbon into graphitic carbon, a process kn…
View article: Enhanced photocatalytic hydrogen production <i>via</i> water splitting using cobalt-based organic nanofibers under visible light irradiation
Enhanced photocatalytic hydrogen production <i>via</i> water splitting using cobalt-based organic nanofibers under visible light irradiation Open
Organic cobalt nanofibers were developed as efficient photocatalysts for hydrogen production via water splitting under visible light. The nanofibers exhibit enhanced photocatalytic performance and stability with methanol as a scavenger.
View article: Synergistic advancements in sewage-driven microbial fuel cells: novel carbon nanotube cathodes and biomass-derived anodes for efficient renewable energy generation and wastewater treatment
Synergistic advancements in sewage-driven microbial fuel cells: novel carbon nanotube cathodes and biomass-derived anodes for efficient renewable energy generation and wastewater treatment Open
Microbial fuel cells (MFCs) offer a dual solution of generating electrical energy from organic pollutants-laden wastewater while treating it. This study focuses on enhancing MFC performance through innovative electrode design. Three-dimens…
View article: Synergistic doping with Ag, CdO, and ZnO to overcome electron-hole recombination in TiO2 photocatalysis for effective water photo splitting reaction
Synergistic doping with Ag, CdO, and ZnO to overcome electron-hole recombination in TiO2 photocatalysis for effective water photo splitting reaction Open
This manuscript is dedicated to a comprehensive exploration of the multifaceted challenge of fast electron-hole recombination in titanium dioxide photocatalysis, with a primary focus on its critical role in advancing the field of water pho…
View article: (Fe-Co-Ni-Zn)-Based Metal–Organic Framework-Derived Electrocatalyst for Zinc–Air Batteries
(Fe-Co-Ni-Zn)-Based Metal–Organic Framework-Derived Electrocatalyst for Zinc–Air Batteries Open
Zinc–air batteries (ZABs) have garnered significant interest as a viable substitute for lithium-ion batteries (LIBs), primarily due to their impressive energy density and low cost. However, the efficacy of zinc–air batteries is heavily dep…
View article: Recent Research Trends on Zeolitic Imidazolate Framework-8 and Zeolitic Imidazolate Framework-67-Based Hybrid Nanocomposites for Supercapacitor Application
Recent Research Trends on Zeolitic Imidazolate Framework-8 and Zeolitic Imidazolate Framework-67-Based Hybrid Nanocomposites for Supercapacitor Application Open
Recently, Zeolitic Imidazolate Frameworks (ZIFs) and their hybrid composites have incited a lot of interest in the research community and have shown promising potential in supercapacitors owing to their excellent conductivity, high surface…
View article: Data from p31<sup>comet</sup> Induces Cellular Senescence through p21 Accumulation and Mad2 Disruption
Data from p31<sup>comet</sup> Induces Cellular Senescence through p21 Accumulation and Mad2 Disruption Open
Functional suppression of spindle checkpoint protein activity results in apoptotic cell death arising from mitotic failure, including defective spindle formation, chromosome missegregation, and premature mitotic exit. The recently identifi…
View article: Data from p31<sup>comet</sup> Induces Cellular Senescence through p21 Accumulation and Mad2 Disruption
Data from p31<sup>comet</sup> Induces Cellular Senescence through p21 Accumulation and Mad2 Disruption Open
Functional suppression of spindle checkpoint protein activity results in apoptotic cell death arising from mitotic failure, including defective spindle formation, chromosome missegregation, and premature mitotic exit. The recently identifi…
View article: Pre-existing non-human leukocyte antigen antibodies are associated with allograft rejection after thoracic transplantation
Pre-existing non-human leukocyte antigen antibodies are associated with allograft rejection after thoracic transplantation Open
Patients with antibodies against GSTT1 before heart or lung transplantation have an increased risk of acute rejection.
View article: Adhesive-Free Pdms/Pua Bilayer Using Selective Photopolymerization for Transparent, Attachable, and Wearable Triboelectric Nanogenerator
Adhesive-Free Pdms/Pua Bilayer Using Selective Photopolymerization for Transparent, Attachable, and Wearable Triboelectric Nanogenerator Open
View article: Nitrogen, Boron, and Fluorine Triply Doped Chain-Like Porous Carbon Nanofibers: Remarkable Oxygen Electrocatalytic Activity at Universal Ph and Rechargeable Zinc-Air Batteries
Nitrogen, Boron, and Fluorine Triply Doped Chain-Like Porous Carbon Nanofibers: Remarkable Oxygen Electrocatalytic Activity at Universal Ph and Rechargeable Zinc-Air Batteries Open
View article: Carbon Nanofibers-Sheathed Graphite Rod Anode and Hydrophobic Cathode for Improved Performance Industrial Wastewater-Driven Microbial Fuel Cells
Carbon Nanofibers-Sheathed Graphite Rod Anode and Hydrophobic Cathode for Improved Performance Industrial Wastewater-Driven Microbial Fuel Cells Open
Carbon nanofiber-decorated graphite rods are introduced as effective and low-cost anodes for industrial wastewater-driven microbial fuel cells. Carbon nanofiber deposition on the surface of the graphite rods could be performed by the elect…
View article: CdTiO3-NPs incorporated TiO2 nanostructure photocatalyst for scavenger-free water splitting under visible radiation
CdTiO3-NPs incorporated TiO2 nanostructure photocatalyst for scavenger-free water splitting under visible radiation Open
Nanofibrous morphology and the doping technique can overcome the problem of electron/hole fast recombination and improve the activity of titanium oxide-based photocatalysts. In this study, nanoparticulate and nanofibrous forms of CdTiO 3 -…
View article: Evaluation of Phytochemical Content and the Antioxidant and Antiproliferative Potentials of Leaf Layers of Cabbage Subjected to Hot Air and Freeze-Drying
Evaluation of Phytochemical Content and the Antioxidant and Antiproliferative Potentials of Leaf Layers of Cabbage Subjected to Hot Air and Freeze-Drying Open
Cabbage (Brassica oleracea var. capitata f. alba), a cruciferous vegetable, is one of the most widely consumed vegetables worldwide. However, research on whether there are differences in its contents of phytochemicals and biological activi…
View article: Antrochoanal Polyp and Migrated Dental Implant in the Ipsilateral Maxillary Sinus
Antrochoanal Polyp and Migrated Dental Implant in the Ipsilateral Maxillary Sinus Open
Antrochoanal polyp is usually a benign solitary mass lesion originated from maxillary sinus mucosa and emerging through maxillary ostium. We report a rare case of antrochoanal polyp and migrated dental implant in the ipsilateral maxillary …
View article: Homogeneous Elongation of N‐Doped CNTs over Nano‐Fibrillated Hollow‐Carbon‐Nanofiber: Mass and Charge Balance in Asymmetric Supercapacitors Is No Longer Problematic
Homogeneous Elongation of N‐Doped CNTs over Nano‐Fibrillated Hollow‐Carbon‐Nanofiber: Mass and Charge Balance in Asymmetric Supercapacitors Is No Longer Problematic Open
The hurdle of fabricating asymmetric supercapacitor (ASC) devices using a faradic cathode and a double layer anode is challenging due to the required large amount of active mass of anodic material compared to that of the cathodic material …
View article: Impairment of Glucose Metabolism and Suppression of Stemness in MCF-7/SC Human Breast Cancer Stem Cells by Nootkatone
Impairment of Glucose Metabolism and Suppression of Stemness in MCF-7/SC Human Breast Cancer Stem Cells by Nootkatone Open
Targeting cancer stem cell metabolism has emerged as a promising therapeutic strategy for cancer treatment. Breast cancer stem cells (BCSCs) exert distinct metabolism machinery, which plays a major role in radiation and multidrug resistanc…
View article: Carbon Nanofiber Double Active Layer and Co-Incorporation as New Anode Modification Strategies for Power-Enhanced Microbial Fuel Cells
Carbon Nanofiber Double Active Layer and Co-Incorporation as New Anode Modification Strategies for Power-Enhanced Microbial Fuel Cells Open
Co-doped carbon nanofiber mats can be prepared by the addition of cobalt acetate to the polyacrylonitrile/DMF electrospun solution. Wastewater obtained from food industries was utilized as the anolyte as well as microorganisms as the sourc…
View article: Layered Oxide Cathode-Inspired Secondary Hard Carbon Microsphere Anode Material for High-Power and Long-Life Rechargeable Batteries
Layered Oxide Cathode-Inspired Secondary Hard Carbon Microsphere Anode Material for High-Power and Long-Life Rechargeable Batteries Open
View article: Three-dimensional carbon nanofiber-based anode for high generated current and power from air-cathode micro-sized MFC
Three-dimensional carbon nanofiber-based anode for high generated current and power from air-cathode micro-sized MFC Open
A super-effective novel 3D carbon nanofiber-based anode for micro-sized microbial fuel cells is reported. The power density generated from the proposed micro-sized MFC was 8100 mW m −2 . The fabrication method is simple and applicable.
View article: A Simulation Method for the Optimization of Cooling Water Slot Structure in Slab Continuous Casting Mold Combined With SEN
A Simulation Method for the Optimization of Cooling Water Slot Structure in Slab Continuous Casting Mold Combined With SEN Open
The temperature field in the full 3D finite element mold model combined with submerged entry nozzle(SEN)(Full SEN-3D FEMM) is simulated with Fluent of ANSYS 18.0 Package to apply the maximum heat flux density on the heat face of mold coppe…
View article: A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors
A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors Open
The development of smart negative electrode materials with high capacitance for the uses in supercapacitors remains challenging. Although several types of electrode materials with high capacitance in energy storage have been reported, carb…
View article: A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors
A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors Open
The development of smart negative electrode materials with high capacitance for use in supercapacitors remains challenging. Although there have been several types of electrode materials with high capacitance used in energy storage, carbon-…
View article: A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors
A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors Open
The development of smart negative electrode materials with high capacitance for use in supercapacitors remains challenging. Although there have been several types of electrode materials with high capacitance used in energy storage, carbon-…