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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Comparison of Different Green Space Measures and Their Impact on Dementia Cases in South Korea: A Spatial Panel Analysis | Dementia has become a profound public health problem due to the number of patients increasing every year. Previous studies have reported that environmental factors, including greenness, may influence the development and progression of dementia. Studies have found that exposure to green space is associated with a lower incidence of dementia. However, many definitions of green space exist, and the effects of its use may differ with the type of green space. Therefore, two types of green space measures were considered in this study to assess the differences in their impact on the prevalence of dementia among females and males. This study used five years of data (2017-2021) from 235 districts in South Korea. The two green space measures used were open space density and normalized difference vegetation index (NDVI), which were derived from satellite images. The analysis utilized a combination of traditional and spatial panel analyses to account for the spatial and temporal effects of independent variables on dementia prevalence. The spatial autocorrelation results revealed that both measures of greenness were spatially correlated with dementia prevalence. The spatial panel regression results revealed a significant positive association between NDVI and dementia prevalence, and open space had a negative association with dementia prevalence in both genders. The difference in the findings can serve as the basis for further research when choosing a greenspace measure, as it affects the analysis results, depending on the objective of the study. This study adds to the knowledge regarding improving dementia studies and the application of spatial panel analysis in epidemiological studies. | Karurung, Wulan Salle; Lee, Kangjae; Lee, Wonhee | Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Locat Based Informat Syst, Sangju 37224, South Korea | 59002588800; 56040328200; 57190774365 | wulansalle@knu.ac.kr;kasbiss@knu.ac.kr;wlee33@knu.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 13 | 4 | SCIE | GEOGRAPHY, PHYSICAL;REMOTE SENSING;COMPUTER SCIENCE, INFORMATION SYSTEMS | 2024 | 2.8 | 36.6 | 0.47 | 2025-05-07 | 1 | 1 | dementia; open space; greenness exposure; NDVI; spatial panel analysis; epidemiology | CHINA; RISK; POLLUTION; CITIES | dementia; epidemiology; greenness exposure; NDVI; open space; spatial panel analysis | English | 2024 | 2024-04 | 10.3390/ijgi13040126 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Dependence of magnetic performance on coating method in grain boundary diffusion processed Nd-Fe-B sintered magnets | In this study, commercial sintered Nd-Fe-B magnets were coated with a grain-boundary-diffusion HRE source (TbHx) using two different approaches, and the resulting variations in the magnetic properties were systematically investigated. The coercivity increased significantly from 12.8 to 24.4 kOe and to 26.8 kOe by enabling TbHx diffusion through dip and spray coating, respectively. Slight diffusion-induced decreases in remanence were observed for the dip- and spray-coated magnets, from 14.5 to 14.0 kG and to 14.3 kG, respectively. Microstructural analysis indicated that the spray-coated magnet exhibited performance superior to that of its dipcoated counterpart; this was likely due to the mitigation of the low-efficiency diffusion from the side-wall coating, in which the direction of diffusion-which was perpendicular to the alignment orientation of the magnet-promoted diffusion through the grain interior rather than along the grain boundaries. | Kim, Jaehyuk; Jang, Ye Ryeong; Lee, Dong Hyun; Kim, Seong Chan; Beak, Ju-Young; Kim, Donghwan; Lee, Sang Hyub; Kim, Sumin; Roh, Jong Wook; Lee, Wooyoung; Do, Dalhyun; Kim, Dong Hwan; Kim, Jeongmin | DGIST, Div Nanotechnol, 333 Techno Jungang Daero, Daegu 42988, South Korea; Keimyung Univ, Dept Adv Mat Engn, 1095,Dalgubeol Daero, Daegu, South Korea; Yonsei Univ, Dept Mat Sci & Engn, 50 Yonsei Ro, Seoul 03722, South Korea; Kyungpook Natl Univ, Sch Nano & Mat Sci & Engn, Daegu 37224, Gyeongsangbug D, South Korea; Star Grp, R&D Ctr, Daegu 42714, South Korea; Korea Inst Mat Sci, Dept Magnet Mat, Chang Won 51508, South Korea | Lee, Dong Hyun/AAD-5566-2021; Kim, Donghwan/KQT-9371-2024 | 58803104500; 57976006900; 58389757300; 58803104600; 58802100600; 59617009200; 57406887500; 57898467900; 25638796100; 55498383000; 7102731844; 57195540717; 57203325094 | kimdhwan@dgist.ac.kr;jkim@dgist.ac.kr; | MATERIALS TODAY COMMUNICATIONS | MATER TODAY COMMUN | 2352-4928 | 38 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 4.5 | 36.6 | 0.92 | 2025-05-07 | 3 | 3 | Grain boundary diffusion; Nd-Fe-B; Coating method; Coercivity; Remanence | COERCIVITY ENHANCEMENT; RICH PHASE; MICROSTRUCTURE; MECHANISM | Coating method; Coercivity; Grain boundary diffusion; Nd–Fe–B; Remanence | Coercive force; Diffusion coatings; Grain boundaries; Iron alloys; Neodymium alloys; Remanence; Sintering; Coating methods; Dip coating; Grain-boundary diffusion; Magnetic performance; Microstructural analysis; Nd-Fe-B; Nd-Fe-B magnets; Nd-Fe-B sintered magnets; Performance; Spray coating; Diffusion | English | 2024 | 2024-03 | 10.1016/j.mtcomm.2023.108004 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Fracture characteristics of Hongcheon Gneiss in South Korea assessed from deep drillcore samples | Fractures in a rock mass have an important influence on the mechanical response and hydraulic properties. Investigating and modeling fractures is crucial, especially with regard to the geological disposal of high-level radioactive waste, where long term stability is necessary to avoid a direct threat to society. This study sought to classify joints and faults in the Hongcheon gneiss, South Korea, based on their geometric characteristics. A generic classification model for joints and faults is proposed, dividing them into four types based on propagation pattern and development of fault core and fault effect zone. More than 4,000 joints and 34 faults were analyzed using samples of deep drillcore to investigate the relationships between the properties of these structures and depth or lithology. To validate the model, it was applied to other area where different lithologies are found. A damage index is utillized to visually represent the impact of a fault on the quality of rock mass. The joint patterns can be correlated with lithology, as the mineralogical characteristics and internal structures influence the patterns. The fault zone patterns show a relationship with depth, and the damage index provides a reliable indication of the fault impact. The validation of the fault model will be conducted in subsequent studies. With estimation of the hydromechanical properties of each joint and fault pattern, a practical approach would be provided to characterize fractures from drillcore data and enhance the accuracy of fluid flow and stability models for any given rock mass. | Jeong, Youjin; Lee, Jaeho; Choi, Junghae; Cheon, Dae-Sung; Chae, Byung-Gon | Kyungpook Natl Univ, Dept Geol, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Earth Sci Educ, Daegu 41566, South Korea; Korea Inst Geosci & Mineral Resources KIGAM, Geol & Space Res Div, Daejeon 34132, South Korea | 57614147700; 58974708900; 55839820300; 6603797764; 35782715300 | choi.jh@knu.ac.kr; | ENVIRONMENTAL EARTH SCIENCES | ENVIRON EARTH SCI | 1866-6280 | 1866-6299 | 83 | 16 | SCIE | ENVIRONMENTAL SCIENCES;GEOSCIENCES, MULTIDISCIPLINARY;WATER RESOURCES | 2024 | 2.8 | 36.6 | 0 | 2025-05-07 | 0 | 0 | Joint; Fault; Fluid flow; Geological disposal; Site characterization | JOINT ROUGHNESS COEFFICIENT; SHEAR-STRENGTH; HYDRAULIC CONDUCTIVITY; ROCK MASSES; FAULT GOUGE; FLUID-FLOW; SURFACE; PERMEABILITY; ANISOTROPY; MODEL | Fault; Fluid flow; Geological disposal; Joint; Site characterization | Hongcheon; Kangwon; South Korea; South Korea; Faulting; Geochronology; Radioactive waste disposal; Structural geology; Damage index; Fault; Fluid-flow; Fracture characteristics; Geological disposals; Mechanical response; Property; Rock-mass; Site characterization; South Korea; damage mechanics; fault zone; fluid flow; rock mechanics; Lithology | English | 2024 | 2024-08 | 10.1007/s12665-024-11786-w | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Functional Group Effects on the Interfacial Adsorption of Arylquinoline-3-Carbonitriles on Iron: A DFT-D3 Investigation of Surface Interaction Mechanisms | Reliable corrosion inhibition systems are crucial for extending the lifespan of industrial metal structures. Quinolines, with their high adsorption capacity and protective efficiency, are promising next-generation inhibitors. However, the impact of substitutions on their coordination with iron surfaces requires deeper understanding. Herein, we investigate the influence of various functional groups on the adsorption behavior of three 2-amino-4-arylquinoline-3-carbonitriles (AACs) on iron surfaces using first-principles density functional theory calculations. Results reveal that nitrophenyl and hydroxyphenyl significantly enhance the adsorption strength of AACs on the Fe(110) surface, facilitated by donor-acceptor interactions. Neutral molecules were more stable than their protonated counterparts. Key results show strong adsorption energies, with values ranging from -2.005 to -1.809 eV for the AACs, along with significant electron gains across carbon atoms as indicated by Bader charge analysis. These strong interactions result in notable charge redistribution and bond formation, as shown by projected density of states and electron density difference iso-surfaces. Furthermore, electron localization function analysis indicates that van der Waals interactions, influenced by multiple nitrogen atoms, play a crucial role in stabilizing the adsorbed molecules. Stronger adsorption through electron donation and retro-donation mechanisms suggests enhanced corrosion protection efficiency of these substituted quinolines. The conductor-like screening model for real solvents analysis provides complementary insights into the solvation characteristics. Overall, the findings demonstrate the specific role functional groups play in the coordination of arylquinoline-3-carbonitriles with iron surfaces. | Lgaz, Hassane; Kaya, Savas; Lee, Dong-Eun; Aldalbahi, Ali; Lee, Han-seung | Hanyang Univ ERICA, Innovat Durable Bldg & Infrastructure Res Ctr, Ctr Creat Convergence Educ, Ansan 15588, Gyeonggi Do, South Korea; Sivas Cumhuriyet Univ, Hlth Serv Vocat Sch, Dept Pharm, TR-58140 Sivas, Turkiye; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea; King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia; Hanyang Univ ERICA, Dept Architectural Engn, Ansan 15588, Gyeonggi Do, South Korea | ; Lee, HanSeung/E-9087-2013; Aldalbahi, Ali/E-3511-2015; Kaya, Savaş/AAA-4705-2021; Lgaz, Hassane/U-9805-2019 | ercleehs@hanyang.ac.kr; | LANGMUIR | LANGMUIR | 0743-7463 | 1520-5827 | 41 | 1 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 3.9 | 36.6 | 1 | ORGANIC CORROSION-INHIBITORS; ELECTRON LOCALIZATION; MOLECULES; DERIVATIVES; STEEL; 8-HYDROXYQUINOLINE; NITROGEN; COPPER | English | 2024 | 2024-12-23 | 10.1021/acs.langmuir.4c03611 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Green development of samarium borosilicate glasses doped silica gel waste for stable orange colored visible host material | This study presents a new way to make luminescent glass doped with SiO2 components using recycled silica gel waste from laboratories and ball milling and melt-quenching methods. A study is conducted on the optical, photoluminescence, and X-ray luminescence characteristics of glasses doped with recycled silica gel waste (RSGW); (69-Y)B2O3-18Li2O-12BaO-YRSGW-1.0Sm2O3 (Y= 0-60 mol%) and Sm2O3-doped; (40-Y) B2O3-18Li2O-12BaO-30RSGW-YSm2O3 (Y= 0-2 mol%). The glass samples undergo characterization using several spectroscopic techniques under standard ambient conditions. The density and refractive index of the YSilicagelSm glasses increase, while their molar volume value decreases with the increase in RSGW content in the glass system. Furthermore, the absorption spectra display the hypersensitive transitions 6H5/2 -> 6P3/2 and 6H5/2 -> 6F7/2 in the visible and near-infrared ranges, respectively. The glasses exhibit four prominent transitions that are indicative of the Sm3+ ion as a result of photoluminescence and X-ray luminescence. Among these, the 4G5/2 -> 6H7/2 (at 600 nm) transition is the most intense. Photoluminescence and X-ray luminescence suggest the highest emission intensity occurs in the host composition containing 30 mol% RSGW. According to the CIE 1931 chromaticity diagram, this glass produces a reddish-orange illumination. A further experiment was prepared with a host glass (40-Y)B2O3-18Li2O-12BaO-30RSGW-YSm2O3 with varying Sm2O3 concentrations. The results from both luminescence experiments support that the concentration of Sm2O3 increases up to 1.0 mol% and then decreases, which is the appropriate quenching concentration of Sm3+. This not only offers another way to repurpose waste but also presents interesting novel possibilities for materials science and photonics research. | Manyum, P.; Rittisut, W.; Wantana, N.; Ruangtaweep, Y.; Srisittipokakun, N.; Rujirawat, S.; Kamonsuangkasem, K.; Yimnirun, R.; Prasatkhetragarn, A.; Phongsa, A.; Intachai, N.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Suranaree Univ Technol, Sch Phys, Nakhon Ratchasima 30000, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci, Nakhon Pathom 73000, Thailand; Synchrotron Light Res Inst, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand; Vidyasirimedhi Inst Sci & Technol VISTEC, Sch Energy Sci & Engn, Rayong 21210, Thailand; Vidyasirimedhi Inst Sci & TECHNOL VISTEC, Res Network NANOTEC VISTEC Nanotechnol Energy, Rayong 21210, Thailand; Univ Phayao, Sch Sci, Appl Sci Program, Phayao 56000, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023 | 6506891657; 57208675448; 56267058700; 37108588700; 35365411300; 6603107856; 55437015900; 24504594000; 23098474100; 57792448700; 57221909427; 6507017165; 59051568100; 23974520300 | pmanyum@sut.ac.th;jakrapong@webmail.npru.ac.th; | MATERIALS TODAY COMMUNICATIONS | MATER TODAY COMMUN | 2352-4928 | 38 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 4.5 | 36.6 | 0.31 | 2025-05-07 | 2 | 1 | Recycled silica gel waste; Melt-quenching methods; Photoluminescence and X-ray luminescence | LUMINESCENCE PROPERTIES; SM3+ IONS; OPTICAL-PROPERTIES; SPECTROSCOPIC PROPERTIES; ENERGY-TRANSFER; BORATE GLASSES; LASER; PHOSPHATE; PHOTOLUMINESCENCE; BEHAVIOR | Melt-quenching methods; Photoluminescence and X-ray luminescence; Recycled silica gel waste | Ball milling; Barium compounds; Citrus fruits; Infrared devices; Quenching; Recycling; Refractive index; Samarium compounds; Silica; Doped silicas; Glass samples; Host materials; Luminescence characteristics; Luminescent glass; Melt quenching method; Optical photoluminescence; Photoluminescence and X-ray luminescence; Recycled silicum gel waste; X ray luminescence; Photoluminescence | English | 2024 | 2024-03 | 10.1016/j.mtcomm.2024.108025 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Heat’s Role in Solution Electrospinning: A Novel Approach to Nanofiber Structure Optimization | In this study, we explored an innovative application of heat-assisted solution electrospinning, a technique that significantly advances the control of phase separation in polystyrene (PS) fibers. Our experimental approach involved the use of direct heating and a convection air sheath applied through a coaxial needle, focusing on solvents with varying vapor pressures. This method enabled a detailed investigation into how solvent evaporation rates affect the morphology of the electrospun fibers. SEM and AFM measurements revealed that the application of direct heating and a heated air sheath offered precise control over the fiber morphology, significantly influencing both the surface and internal structure of the fibers. Additionally, we observed notable changes in fiber diameter, indicating that heat-assisted electrospinning can be effectively utilized to tailor fiber dimensions according to specific application requirements. Moreover, our research demonstrated the critical role of solvent properties, particularly vapor pressure, in determining the final characteristics of the electrospun fibers. By comparing fibers produced with different solvents, we gained insights into the complex interplay between solvent dynamics and heat application in fiber formation. The implications of these findings are far-reaching, offering new possibilities for the fabrication of nanofibers with customized properties. Furthermore, this could have profound impacts on various applications, from biomedical to environmental, where specific fiber characteristics are crucial. This study not only contributes to the understanding of phase separation in electrospinning but also opens avenues for further research on the optimization of fiber properties for diverse industrial and scientific applications. © 2024 The Authors. Published by American Chemical Society. | Wildy, Michael; Wei, Wanying; Xu, Kai; Schossig, John; Hu, Xiao; Hyun, Dong Choon; Chen, Wenshuai; Zhang, Cheng; Lu, Ping | Department of Chemistry and Biochemistry, Rowan University, Glassboro, 08028, NJ, United States; Department of Chemistry and Biochemistry, Rowan University, Glassboro, 08028, NJ, United States; Department of Chemistry and Biochemistry, Rowan University, Glassboro, 08028, NJ, United States; Department of Chemistry and Biochemistry, Rowan University, Glassboro, 08028, NJ, United States; Department of Physics and Astronomy, Rowan University, Glassboro, 08028, NJ, United States; Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 41566, South Korea; Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China; Chemistry Department, Long Island University (Post), Brookville, 11548, NY, United States; Department of Chemistry and Biochemistry, Rowan University, Glassboro, 08028, NJ, United States | 57846873700; 57219923324; 58419841800; 58420501800; 55549803100; 15834575400; 35304598300; 57213609342; 57195511292 | lup@rowan.edu; | Langmuir | LANGMUIR | 0743-7463 | 1520-5827 | 40 | 15 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 3.9 | 36.6 | 0.64 | 2025-05-07 | 4 | Fibers; Hydrostatic pressure; Industrial research; Morphology; Nanofibers; Phase separation; Solvents; Structural optimization; nanofiber; polystyrene; solvent; AFM; Direct heating; Electrospun fibers; Evaporation rate; Experimental approaches; In-fiber; Nano-fiber structure; Solvent evaporation; Structure optimization; Vapour pressures; article; electrospinning; evaporation; heat; heating; needle; pharmaceutics; phase separation; thermodynamics; vapor pressure; Electrospinning | English | Final | 2024 | 10.1021/acs.langmuir.3c03919 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Ion-exchange formation of Ag2CO3-Ag3PO4 binary nanostructure on electrospun polyurethane nanofibers for enhanced photocatalytic degradation and antibacterial activities | In this study, a hybrid Ag2CO3-Ag3PO4/PU NFs membrane was prepared by electrospinning followed by ionexchange methods. The obtained samples were characterized by SEM, EDS, XRD, and IR techniques. The Ag2CO3-Ag3PO4/PU NFs membrane composite exhibited excellent photocatalytic performance (100 % of the dye removal within 70 min) towards the degradation of methylene blue (MB) under visible light irradiation. This remarkable performance was mainly due to the efficient separation of the photogenerated charge carriers. In addition, the composite showed good antibacterial performance against Salmonella typhimurium and Staphylococcus aureus. The results obtained from the photocatalytic and antibacterial studies showed that the prepared material can be proposed as a multifunctional material in wastewater treatment and environmental applications. | Pant, Bishweshwar; Jung, Sunjun; Park, Mira | Woosuk Univ, Carbon Composite Energy Nanomat Res Ctr, Wonju Gun 55338, Chonbuk, South Korea; Woosuk Univ, Int Joint Res Inst Future Energy, Wanju Gun 55338, Chonbuk, South Korea; Woosuk Univ, Dept Automot Engn, Wanju Gun 55338, Chonbuk, South Korea; Woosuk Univ, Woosuk Inst Smart Convergence Life Care WSCLC, Wanju Gun 55338, Chonbuk, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Ophthalmol, Daegu 41566, South Korea | Pant, Bishweshwar/O-3740-2018 | 47061877700; 59510649200; 59787361800 | wonderfulmira@woosuk.ac.kr; | MATERIALS TODAY COMMUNICATIONS | MATER TODAY COMMUN | 2352-4928 | 41 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 4.5 | 36.6 | 1.54 | 2025-05-07 | 6 | 6 | Electrospinning; Ion-exchange; Ag2CO3-Ag3PO4 composites; Photocatalyst; Antibacterial | NANOPARTICLES | Ag<sub>2</sub>CO<sub>3</sub>-Ag<sub>3</sub>PO<sub>4</sub> composites; Electrospinning; Ion-exchange; Photocatalyst, Antibacterial | Ion exchange membranes; Nafion membranes; Nanoclay; Nanofibers; Photocatalytic activity; Wastewater treatment; Ag2CO3-ag3PO4 composite; Anti-bacterial activity; Antibacterials; B-y Ions; Degradation activity; Electrospuns; NF membranes; Photocatalyst, antibacterial; Photocatalytic degradation; Polyurethane nanofibers; Salmonella | English | 2024 | 2024-12 | 10.1016/j.mtcomm.2024.110913 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | ON THE STOCHASTIC SYNCHRONIZATION OF THE WINFREE MODEL WITH A MULTIPLICATIVE NOISE | We study long-time behaviors of stochastic Winfree oscillators under the effect of multiplicative white noise. Under additive white noise, it is well known that the deterministic drift cannot make oscillators be accumulated in a small area, where the ensemble forms a smooth density profile as in the heat equation. However, with the multiplicative noise, especially when the noise strength is proportional to the drift coefficient as in the geometric Brownian motion, we get a stochastic convergence toward an equilibrium. Based on previous results from the stochastic Kuramoto model, we establish the emergence of synchronization for the stochastic Winfree model. Moreover, the proposed argument works in a more general setting, "the gradient system with multiplicative noise". In particular, it explains and enlarges a previous condition of convergence in the stochastic Kuramoto model via the framework of a generalized Winfree model, and it can be extended to the corresponding kinetic model from the mean-field limit. | Ha, Seung-Yeal; Ko, Dongnam; Shim, Woojoo | Seoul Natl Univ, Dept Math Sci, Seoul 08826, South Korea; Seoul Natl Univ, Res Inst Math, Seoul 08826, South Korea; Catholic Univ Korea, Dept Math, Jibongro 43, Bucheon 14662, Gyeonggido, South Korea; Kyungpook Natl Univ, Dept Math Educ, Daegu 41566, South Korea | Ko, Dongnam/MCK-1551-2025 | syha@snu.ac.kr;dongnamko@catholic.ac.kr;wjshim@knu.ac.kr; | COMMUNICATIONS IN MATHEMATICAL SCIENCES | COMMUN MATH SCI | 1539-6746 | 22 | 7 | SCIE | MATHEMATICS, APPLIED | 2024 | 1.3 | 36.6 | 0 | Synchronization; collective behavior; stochastic differential equations; multiplicative noise; almost-sure convergence | OSCILLATORS; POPULATIONS; DYNAMICS; KURAMOTO | English | 2024 | 2024 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Article | ON THE STOCHASTIC SYNCHRONIZATION OF THE WINFREE MODEL WITH A MULTIPLICATIVE NOISE∗ | We study long-time behaviors of stochastic Winfree oscillators under the effect of multiplicative white noise. Under additive white noise, it is well known that the deterministic drift cannot make oscillators be accumulated in a small area, where the ensemble forms a smooth density profile as in the heat equation. However, with the multiplicative noise, especially when the noise strength is proportional to the drift coefficient as in the geometric Brownian motion, we get a stochastic convergence toward an equilibrium. Based on previous results from the stochastic Kuramoto model, we establish the emergence of synchronization for the stochastic Winfree model. Moreover, the proposed argument works in a more general setting, “the gradient system with multiplicative noise”. In particular, it explains and enlarges a previous condition of convergence in the stochastic Kuramoto model via the framework of a generalized Winfree model, and it can be extended to the corresponding kinetic model from the mean-field limit. © (2024), (International Press, Inc.). All rights reserved. | HA, SEUNG-YEAL; KO, DONGNAM; SHIM, WOOJOO | Department of Mathematical Sciences and Research Institute of Mathematics, Seoul National University, Seoul, 08826, South Korea; Corresponding author. Department of Mathematics, The Catholic University of Korea, Jibongro 43, Gyeonggido, Bucheon, 14662, South Korea; Department of Mathematics Education, Kyungpook National University, Daegu, 41566, South Korea | 59661686100; 56823032100; 57204943631 | Communications in Mathematical Sciences | COMMUN MATH SCI | 1539-6746 | 1539-6746 | 22 | 7 | SCIE | MATHEMATICS, APPLIED | 2024 | 1.3 | 36.6 | 0.89 | 2025-05-07 | 1 | almost-sure convergence; collective behavior; multiplicative noise; stochastic differential equations; Synchronization | English | Final | 2024 | 10.4310/cms.240918040826 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Socioeconomic Disparities in the Usage of Urban Opportunities in South Korea During the COVID-19 Pandemic: Using Land Use/Land Cover and Mobile Phone Data | Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 19 (COVID-19), has resulted in dramatic changes in human lifestyles and the geographic distribution of populations. However, despite the unequal impact of COVID-19 across urban spaces, research on the association between socioeconomic disparities in the usage of various types of urban amenities during the pandemic is limited. Thus, this study utilized mobile phone data and land use/land cover (LULC) data to investigate COVID-19-induced changes in the hot spots of the daytime and nighttime populations of two districts in Seoul, South Korea: Gangnam (a high-income community) and Gangbuk (a low-income community). First, the differences between Gangnam and Gangbuk in the LULC and mobile phone data, before and during the pandemic, were statistically analyzed by age. Second, the areas with significantly increased mobile phone-based populations during COVID-19 were identified using a hot spot analysis method and Welch's t-test. This study identified that there were significant disparities in the use of green spaces during the pandemic, with a higher percentage of the mobile phone-based population in Gangnam than Gangbuk. Youths and adults in Gangnam were more likely to visit schools and enjoy physical activities in forests and open spaces during the pandemic, whereas there was no such increase in Gangbuk. The findings contribute to the understanding of the impact of COVID-19 on human behaviors and socioeconomic disparities in the quality of urban life. | Lee, Kangjae; Park, Yoo Min; Joo, Yoohyung; Joo, Minsoo; Heo, Joon | Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea; Univ Connecticut, Dept Geog Sustainabil Community & Urban Studies, Storrs, CT 06269 USA; Yonsei Univ, Dept Civil & Environm Engn, Seoul 03722, South Korea | 56040328200; 56080084600; 58881227600; 59392521600; 8876844400 | kasbiss@knu.ac.kr;yoomin.park@uconn.edu;yooju01@naver.com;msjoo95@yonsei.ac.kr;jheo@yonsei.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 13 | 12 | SCIE | GEOGRAPHY, PHYSICAL;REMOTE SENSING;COMPUTER SCIENCE, INFORMATION SYSTEMS | 2024 | 2.8 | 36.6 | 0 | 2025-05-07 | 1 | 1 | COVID-19; socioeconomic disparity; urban amenities; dynamic population distribution | PUBLIC GREEN SPACE; ACCESSIBILITY; NEIGHBORHOODS; INEQUALITIES; PREFERENCES; ACCESS; CITY | COVID-19; dynamic population distribution; socioeconomic disparity; urban amenities | English | 2024 | 2024-12 | 10.3390/ijgi13120421 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Bio-composite using polyhydroxyalkanoates and sustainable nanofillers derived from cellulose nanofibers and its application for an environmentally friendly packaging material | Polyhydroxyalkanoates (PHA) is a carbon neutral material that contributes to reducing greenhouse gas emissions due to manufactured from biomass and easily degraded by the enzymatic effects of microorganisms in the natural environment. However, PHA exhibits poorer mechanical properties and processability compared with petroleum-based plastics. This study used cellulose nanofiber (CNF) to improve limit of PHA. Moreover, CNF was silylated to reduce polarity difference with PHA and enhance the dispersibility of nanocellulose at PHA. At a result, the silylation process was successfully performed by Si-CH3 stretching peaks in Fourier transform infrared spectroscopy spectra and hydrophobicity of TEOS-MTES-CNF (TECNF) was confirmed by observed water contact angle (147 degrees). In addition, nanostructure of TECNF was maintained during silylation and drying process through field emission scanning electron microscopy. Moreover, the PHA/TECNF composite showed enhanced processability, and tensile strength was increase almost 37% (0.52 MPa) compared with PHA. Oxygen transmission rates (300 cc/m(2)day) and single lap shear strength (225 kPa) were determined to be at least equivalent or superior to those of commercial packaging materials. Therefore, TECNF could be considered as a reinforcing agent, nucleating agent, and plasticizer in PHA. Also, this composite has possibilities to using as environmentally friendly packaging materials. | Jo, Jaemin; Koo, Bonwook | Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu, South Korea; Kyungpook Natl Univ, Sch Forestry Sci & Landscape Architecture, Daegu 41566, South Korea | 57218619190; 57219957247 | bkoo@knu.ac.kr; | JOURNAL OF POLYMER SCIENCE | J POLYM SCI | 2642-4150 | 2642-4169 | 62 | 20 | SCIE | POLYMER SCIENCE | 2024 | 3.6 | 36.7 | 0.39 | 2025-05-07 | 1 | 1 | cellulose nanofiber; environmentally friendly materials; packaging materials; PHA; silylation | MECHANICAL-PROPERTIES; THERMAL-PROPERTIES; PHA; CRYSTALLINE; FIBER; FILMS | cellulose nanofiber; environmentally friendly materials; packaging materials; PHA; silylation | Contact Angle; Greenhouse Gases; Packaging; Scanning Electron Microscopy; Silicon Compounds; Tensile Strength; Contact angle; Field emission microscopes; Fourier transform infrared spectroscopy; Gas emissions; Greenhouse gases; Nanocellulose; Nanofibers; Packaging; Scanning electron microscopy; Silicon compounds; Tensile strength; A-carbon; Biocomposite; Carbon neutrals; Cellulose nanofibers; Environmentally friendly material; ITS applications; Nanofiller; Polyhydroxyalkanoates; Processability; Silylations; Packaging materials | English | 2024 | 2024-10-15 | 10.1002/pol.20240419 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Enhanced properties of polyethylene through in situ polymerization with siloxene-supported vanadium-based catalysts | Two-dimensional (2D) inorganic fillers can significantly improve the properties of polyolefins and broaden their application areas. In this study, high-performance polyethylene (PE)/siloxene nanocomposites were prepared by in situ polymerization using layered siloxene-supported vanadium (V)-based catalysts. The siloxene-supported V-based catalysts have highly dispersed active sites and excellent catalytic performance for ethylene polymerization compared to VOCl3 catalysts. The catalytic activity of the siloxene-supported V-based catalysts for the polymerization of ethylene was significantly better than that of the VOCl3 catalysts at the same catalyst feed. During in situ polymerization, the layered siloxene fillers exhibited uniform dispersion in the PE matrix. Moreover, the addition of a very small amount (1.12 wt%) of siloxene filler significantly improved the thermal stability and mechanical performance of PE. Therefore, this study presents an effective method to fabricate PE with excellent properties. image | Yan, Xin; Zhou, Yuying; Wu, Hao; Liu, Chen; Huang, Chenghan; He, Weiwei; Fang, Liang; Zhang, Hexin; Yang, Jianming; Yoon, KeunByoung | Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243032, Peoples R China; Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Qingdao, Peoples R China; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea | Yang, Jianming/H-3147-2018; Hexin, Zhang/ACI-3911-2022 | 57222030771; 58303255000; 59815070500; 58606037500; 59206121800; 59206510300; 57204863378; 25633288200; 57192669382; 7401607550 | hxzhang@ahut.edu.cn;1085183523@qq.com;kbyoon@knu.ac.kr; | JOURNAL OF POLYMER SCIENCE | J POLYM SCI | 2642-4150 | 2642-4169 | 62 | 24 | SCIE | POLYMER SCIENCE | 2024 | 3.6 | 36.7 | 0.39 | 2025-05-07 | 2 | 2 | layered structure; mechanical properties; nanocomposites; siloxene | OLEFIN POLYMERIZATION; ETHYLENE POLYMERIZATION; SILICA; TEMPERATURE; PERFORMANCE; SIO2 | layered structure; mechanical properties; nanocomposites; siloxene | Ethylene; Nanocatalysts; Nanoclay; Nanocomposites; Polymerization; Application area; Enhanced properties; In-situ polymerization; Inorganic-fillers; Layered Structures; Mechanical; Property; Siloxene; Two-dimensional; ]+ catalyst; Polyethylenes | English | 2024 | 2024-12-15 | 10.1002/pol.20240334 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Review | Anticoagulant properties and therapeutic potentials of wasp venom | Wasp venom is rich in bioactive substances, such as proteins, peptides, and small molecules. The venom significantly affects the mammalian cardiovascular, nervous, and immune systems, causing mild to severe symptoms following stings. It exhibits both procoagulant and anticoagulant activities, and significant research has identified its ability to modulate the mammalian coagulation system. Active substances that inhibit clotting have been identified and purified through patient case reports and experimental studies. This study reviewed the findings on how wasp venom interacts with platelets and coagulation factors, such as fibrinogen and prothrombin, and demonstrated its dual influence on the coagulation cascade. This highlights the potential of the venom in therapeutic applications, especially as an anticoagulant, as evidenced by the inhibition of coagulation factors and prolonged clotting times after envenomation, suggesting its utility in developing novel anticoagulant therapies. This review focuses on the anticoagulant effects of social wasp venom, which is prevalent in sting incidents, summarizing the research and observations on its therapeutic potential. This emphasizes the significance of further studies to identify and utilize venom components as innovative anticoagulant treatments. | Choi, Moon Bo; Lee, Yong-Ho | Daegu Catholic Univ, Coll Bio & Med Sci, Dept Biomed Sci, Gyongsan, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Coll Agr & Life Sci, Daegu, South Korea; Dept R&D, Chilgok, South Korea; Daegu Catholic Univ, Coll Bio & Med Sci, Dept Compan Anim Hlth, Gyongsan, South Korea; Daegu Catholic Univ, Coll Bio & Med Sci, Dept Biomed Sci, Gyongsan 38430, South Korea | Lee, Hye-Young/JEP-8044-2023 | 51863232400; 57205255582 | ylee325@cu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 54 | 4 | SCIE | ENTOMOLOGY | 2024 | 1.6 | 36.8 | 0 | 2025-05-07 | 0 | 0 | anticoagulant; coagulation factors; therapeutic application; thrombosis; wasp venom | HORNET VESPA-ORIENTALIS; SNAKE-VENOM; THROMBOSIS; COAGULATION; DIAGNOSIS; PROTEASE; EXTRACT; STINGS; SAC; BEE | anticoagulant; coagulation factors; therapeutic application; thrombosis; wasp venom | English | 2024 | 2024-04 | 10.1111/1748-5967.12724 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Development of feed material and its effect on the nutritional composition of Protaetia brevitarsis larvae | This study was carried out to assess the nutritional composition of Protaetia brevitarsis larvae (Pbl) reared on different feed materials. Four different types of feed materials were used to rear Pbl prior to nutritional analysis. The results show that the new formulation of feed material enhanced the crude fat content of Pbl by 75%, compared with the control. A marked increase in unsaturated fatty acids such as linoleic acid and oleic acid, by 100% compared with the control, in Pbl reared on the new formulation of feed material was also observed. | Eom, Hyeongjin; Kim, Hunsung; Hahn, Dongyup; Kwon, Ohseok | Kyungpook Natl Univ, Dept Integrat Biol, Daegu, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Sch Food Sci & Biotechnol, Daegu, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Dept Plant Med, Daegu, South Korea; Kyungpook Natl Univ, Inst Plant Med, Coll Agr & Life Sci, Daegu, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Sch Food Sci & Biotechnol, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Dept Plant Med, 80 Daehak Ro, Daegu 41566, South Korea | 58865595800; 58866249200; 36554163400; 56323648400 | dohahn@knu.ac.kr;ecoento@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 54 | 2 | SCIE | ENTOMOLOGY | 2024 | 1.6 | 36.8 | 0 | 2025-05-07 | 0 | 0 | edible insect; feed material; functional food; nutritional composition; Protaetia brevitarsis | edible insect; feed material; functional food; nutritional composition; Protaetia brevitarsis | English | 2024 | 2024-02 | 10.1111/1748-5967.12711 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Enhanced growth and stress tolerance in Barley (Hordeum vulgare) through biopriming with Aspergillus niger CSR3: a promising approach for sustainable agriculture in saline environments | Barley (Hordeum vulgare) is the fourth largest cereal crop in the world, with considerable nutritional value. Recently more studies on the toleration of barley to salt stress have been published, indicating an increased concern for food safety. Salt stress is an increasing threat to agricultural productivity; thus, an attempt was made to explore the growth-promoting capacities of an endophytic fungal strain Aspergillus niger CSR3 in H. vulgare. In the current study, we investigated various physiological and biochemical characteristics of two H. vulgare varieties, namely OM-80 and OM-82, under 300 mM NaCl and 100% seawater treatments with and without the inoculation of CSR3. Our results showed that biopriming of H. vulgare seeds with CSR3 enhanced germination ratio both in control and salt treated conditions. Under salt stress, the growth of H. vulgare plants was significantly reduced; however, CSR3 alleviated the salt stress and significantly increased root/shoot length and weight compared to their respective counterparts both under control and stress conditions. The fungal strain showed an ameliorated response to salt stress by improving the photosynthetic machinery. Results demonstrate that accumulation of reduced glutathione (GSH), catalase (CAT), and flavonoids decreased in inoculated plants as compared to non-inoculated under saline conditions indicating the potential of CSR3 in maintaining cellular homeostasis against salinity stress. Moreover, our finding also revealed that starch accumulation decreased with a gradual increase of salt treatment; however, CSR3 inoculation enhanced starch and decreased sugar level, indicating its potential to convert excess sugar to starch. In conclusion, CSR3 can improve plant performance significantly and can greatly improve sustainable agricultural production in saline marginal lands. | Khan, Ibrahim; Asaf, Sajjad; Bilal, Saqib; Alamri, Safiya Salim; Jan, Rahmatullah; Asif, Saleem; Kim, Kyung-Min; AL-Harrasi, Ahmed | Univ Nizwa, Nat & Med Sci Res Ctr, Nizwa 616, Oman; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea | ; Kim, Kyung-Min Kim/C-7007-2014; Jan, Rahmatullah/AIC-3439-2022; Ul-Hamid, Anwar/B-7297-2015; Khan, Ibrahim/JMC-5061-2023; Asaf, Sajjad/ABA-3647-2021 | 57191379139; 57200621537; 56595059900; 57031617400; 57885727700; 57201981969; 57396413700; 34868260300; 6506093146 | sajadasif2000@gmail.com;aharrasi@unizwa.edu.om; | CEREAL RESEARCH COMMUNICATIONS | CEREAL RES COMMUN | 0133-3720 | 1788-9170 | 52 | 3 | SCIE | AGRONOMY | 2024 | 1.9 | 36.8 | 1.96 | 2025-05-07 | 4 | 4 | Barley; Endophytes; Salinity; Sustainable agriculture; Oxidative stress; Biopriming | PLANT-GROWTH; CULTIVARS; RESPONSES; STARCH | Barley; Biopriming; Endophytes; Oxidative stress; Salinity; Sustainable agriculture | English | 2024 | 2024-09 | 10.1007/s42976-023-00456-5 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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