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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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| ○ | Conference paper | NOVEL MODELING TOOL FOR DYNAMIC BEHAVIOR FORECAST AND MANAGEMENT OF CSP PLANT COUPLED TO TESSYSTEM | Forecasting the daily, monthly, and yearly energy generation of solar technologies, particularly concentrating solar power (CSP) plants with thermal energy storage (TES) systems, presents a critical challenge in numerical modelling. The complexity arises from the intricate interplay of sub-components within the system, each governed by diverse physical phenomena, leading to methodologies that may be perceived as distinct. When focusing on each component independently, the study remains limited to the specific operating conditions based on rough assumptions describing an ideal behaviour. Yet, as each element is influenced by the remaining elements placed upstream and/or downstream, this does not accurately reflect the behaviour of the subsystem once integrated into the overall system. The intermittent nature of solar energy, as another relevant factor to consider when modelling the behaviour solar energy technologies, adds a layer of complexity, not only from modelling viewpoint but also in terms of the management of the whole power plant. The intermittence implies that each element will be subject to transient and non-permanent conditions, which include not only the physical phenomenon but also the associated initial and boundary conditions. The focus of this study is the development of dynamic global numerical code to analyse and assess the dynamic behaviour of linear Fresnel concentrator integrating a packed-bed thermocline storage system. Six operating modes close to real-world operating conditions are established. Thereafter, figures of merits including temperatures evolution, thermal performances and involved energies are determined and discussed. Overall, the key role of the thermal energy storage system and the impact of thermal cycling are highlighted. © 2024, Begell House Inc. All rights reserved. | Baba, Yousra Filali; Mers, Ahmed Al; Rehman, Tauseef-Ur | Department of Energy and Environment (GEE), Ecole Nationale Supérieure d’Arts et Métiers ofRabat (ENSAM-R), Mohammed V University in Rabat (UM5R), Rabat, Morocco; Abdelamalek Essaadi University, ISI laboratory, National school of Applied Sciences (ENSA-TETOUAN), Tetouan, Morocco; School of Mechanical Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57194346885; 14029854300; 57159403400 | y.filali@um5r.ac.ma; | International Symposium on Advances in Computational Heat Transfer | 2578-5486 | 2024 | 0 | 2025-05-07 | 0 | Dynamic behaviour; Global dynamic code; Linear Fresnel Concentrator; Performance; Thermocline packed bed storage system | English | Final | 2024 | 바로가기 | |||||||||||||||||||
| ○ | ○ | Proceedings Paper | Numerical Analysis of Partial Discharge on Multi-Dielectric Insulator Forming Migration-Ohmic Model | Partial discharge characteristics were analyzed on a multi-dielectric insulator in air forming a migration-ohmic model by using fully coupled finite element method. In a HVDC or MVDC system, the electric stress is constantly applied to multi-dielectric insulators resulting in the movement of space or surface charge density. The concentration of surface charge density can cause the partial discharge problem which degrades the breakdown strength of the insulators. To consider an aging effect for dielectric insulators, the conductivity can be a good choice, but it is rarely reported to analyze this migration-ohmic model in discharge analysis. We, therefore, introduced the current continuity equation incorporating with the space charge continuity equations for electron, and positive and negative ions. To verify our numerical setup, we will compare the temporal surface charge decay on the surface of lossy dielectric insulator, obtained from an experiment through the surface charge decay (SPD) measurement with the Kelvin probe. | Kang, Hyemin; Kim, Yonghee; Lee, Se-Hee | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea | Kang, Hyemin/ABG-3667-2020 | 59239975900; 58753775300; 55009905600 | kanghm323@knu.ac.kr;hee113803@knu.ac.kr;shlees@knu.ac.kr; | 2024 IEEE 21ST BIENNIAL CONFERENCE ON ELECTROMAGNETIC FIELD COMPUTATION, CEFC 2024 | 0 | 2025-05-07 | 0 | 0 | Migration-ohmic model; Lossy dielectric; Surface charge; Surface current; Partial discharge (PD) | Lossy dielectric; Migration-ohmic model; Partial discharge (PD); Surface charge; Surface current | HVDC power transmission; Negative ions; Surface charge; Continuity equations; Dielectric insulators; Insulator forming; Lossy dielectrics; Migration-ohmic model; Partial discharge; Partial discharge characteristics; Surface charge decay; Surface charge densities; Surface current; Partial discharges | English | 2024 | 2024 | 10.1109/cefc61729.2024.10586194 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | Conference paper | Numerical Simulation of Molten Salt Spreading Behavior under the Salt Spill Accident of Molten Salt Reactor | To simulate the process of a severe accident in a molten salt reactor involving a molten salt leak, two-dimensional and three-dimensional analyses have been performed for the case where molten salt leaks vertically onto a flat surface. We analyzed the spreading behavior as the molten salt, in its liquid form, leaks and solidifies due to heat loss at the bottom and top surfaces of the molten salt. Although it is an axisymmetric problem centered on the axis of the discharge nozzle, it was observed that as the molten salt solidifies, it forms local irregular crusts on the surface, resulting in non-uniform flow resistance in the circumferential direction. Consequently, in three-dimensional analysis, the molten salt does not spread uniformly in the circumferential direction. By comparing the two-dimensional and three-dimensional analysis results for the spreading distance of the molten salt, which is a critical parameter in the severe accident analysis of molten salt reactors, we evaluated the applicability of the two-dimensional analysis on the simulation of molten salt spreading problem with various boundary conditions. © Proceedings of Advances in Thermal Hydraulics, ATH 2024. | Bae, Jun Ho; Kim, Sung Il; Jang, Hyun Seok; Park, Il Seok | Korea Atonic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, South Korea; Korea Atonic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, South Korea; Kyungpook National University, Department of Mechanical Engineering, 80 Daehakro, Bukgu, Daegu, 41566, South Korea; Kyungpook National University, Department of Mechanical Engineering, 80 Daehakro, Bukgu, Daegu, 41566, South Korea | 55541176400; 57203773173; 59527155400; 50262800000 | Proceedings of Advances in Thermal Hydraulics, ATH 2024 | 0 | 2025-05-07 | 0 | corium spreading; Molten salt reactor; three-dimensional analysis | Nuclear reactor accidents; Oil spills; Axisymmetric problems; Bottom surfaces; Circumferential direction; Corium spreading; Flatter surfaces; Molten salt; Severe accident; Three-dimensional analysis; Top surface; Two-dimensional; Molten salt reactor | English | Final | 2024 | 10.13182/t131-45624 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Article | NUTRITIONAL, ANTI-NUTRITIONAL, AND SENSORY PROPERTIES OF COWPEA HULL-ENRICHED GARI | In continuous search for solutions to malnutrition, mainly prevalent among the people of developing countries, various views have been expressed regarding the necessity to improve the nutritional quality of indigenous foods such as gari through better processing and enrichment with cheap and readily available plant materials such as cowpea hull. Gari was produced using the traditional method and enriched with freshly produced cowpea hull in dry form to improve the nutritional composition. The objective of this study was to determine the effect of stages of inclusion of cowpea hull on some quality attributes of gari. Factorial design of 2 stages of inclusion (before and after fermentation) with 4 levels (0 %, 3 %, 5 % and 7 %) of cowpea hull treatments and standard methods were used to analyze the enriched gari (EG). The results of the proximate analysis of gari revealed that as inclusion level increases crude fibre, ash and crude protein contents increased in the fermented EG. Enrichment caused a significant (p<0.05) increase in the minerals and the amino acid profile compared to the control while fermentation caused a significant increase in vitamins content of EG. The titratable acidity of the EG may be linked to the increase in amino acid content of the samples, and pH ranged from 3.87 to 3.99. Fermentation of the cowpea hulls with cassava mash significantly enhanced the sensory characteristics and make them acceptable than their unfermented counterpart. Based on the results, it is recommended to enrich gari by incorporating 7% cowpea hull that have undergone fermentation with cassava mash. © 2024, University of Peradeniya. All rights reserved. | Olapade, G.M.; Karim, O.R.; Abiodun, O.A.; Salami, K.O.; Akintayo, O.A.; Olawuyi, I.F. | Department of Home Economics and Food Science, Faculty of Agriculture, University of Ilorin, Nigeria, Department of Home Economics, School of Vocational and Technical Education, Kwara State College of Education, Ilorin, Nigeria; Department of Home Economics and Food Science, Faculty of Agriculture, University of Ilorin, Nigeria; Department of Home Economics and Food Science, Faculty of Agriculture, University of Ilorin, Nigeria; Department of Home Economics and Food Science, Faculty of Agriculture, University of Ilorin, Nigeria; Department of Home Economics and Food Science, Faculty of Agriculture, University of Ilorin, Nigeria, School of Agriculture, Food and Wine, The University of Adelaide, Waite, 5064, SA, Australia; School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea | 58640220300; 35368505100; 35809757800; 57200228021; 57204181126; 57204471854 | mosesgbemileks@gmail.com; | Ceylon Journal of Science | 2513-2814 | 53 | 1 | 0 | 2025-05-07 | 0 | Anti-nutritional; Cowpea hull; Gari; Nutritional; Sensory | English | Final | 2024 | 10.4038/cjs.v53i1.8111 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Proceedings Paper | Object Detection in Surveillance Video using EEG with Domain Adaptation Approach | Deep learning has become an integral technique in Brain-Computer Interface (BCI) research, especially in the area of rapid serial visual presentation, due to its proficiency in interpreting complex electroencephalography (EEG) data patterns. However, deep learning's full potential in BCIs is somewhat limited by issues like data scarcity and notable variabilities both within and between subjects. To address these challenges, this study introduces a deep learning training approach that incorporates an overlapping sliding window technique. Following this, we develop a deep network that utilizes domain adaptation, integrating samples from various subjects to enhance object detection performance in surveillance paradigms. Our findings reveal that this overlapping sliding window method surpasses traditional trialbased methods. Additionally, we note a performance improvement when domain adaptation techniques are employed. | Yun, Min-Hu; Jang, Hyeonjin; Ahn, Sangtae; Kim, Hyun-Chul | Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea | Kim, Leehyung/AAN-6760-2020; Ahn, Sangtae/AFQ-7342-2022 | 58984255800; 58527748400; 55468016100; 57194876917 | minhyoo1@knu.ac.kr;janghj479@knu.ac.kr;stahn@knu.ac.kr;hyunchul_kim@knu.ac.kr; | 2024 12TH INTERNATIONAL WINTER CONFERENCE ON BRAIN-COMPUTER INTERFACE, BCI 2024 | 2572-7680 | 2572-7672 | 0 | 2025-04-16 | 0 | 0 | Brain-Computer Interface; Deep Learning; Domain Adaptation; Electroencephalography; Object Detection | Brain-Computer Interface; Deep Learning; Domain Adaptation; Electroencephalography; Object Detection | Brain computer interface; Deep learning; Electroencephalography; Electrophysiology; Object recognition; Security systems; Data patterns; Data scarcity; Deep learning; Detection performance; Domain adaptation; Integral techniques; Objects detection; Rapid serial visual presentations; Sliding window techniques; Surveillance video; Object detection | English | 2024 | 2024 | 10.1109/bci60775.2024.10480519 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Proceedings Paper | On Board-level Failure Localization in Optical Transport Networks Using Graph Neural Network | This paper investigates a novel framework for board-level failure localization in the Optical Transport Networks (OTN), dubbed Board-Alarm Propagation Tree based Failure Localization (BAPT-FL). Foremost, a collection of functional graphs (FGs) is garnered by iteratively tagging each board in the network topology, serving as the ground of the proposed framework. Concretely, BAPT-FL is designed to build a range of BAPTs by correlating the tagged boards and alarms involved in the FGs, where each BAPT deems a failed board and its correlated alarms as the root and leaves, respectively. To evaluate the edge weights of potential BAPTs induced by FGs, a graph neural network (GNN) with the graph transformer operator is employed as an edge classifier, which characterizes each vertex/edge from diverse dimensions including time, traffic distribution, network topology, and board/alarm attributes. Subsequently, we frame an integer linear programming (ILP) problem to construct the best possible BAPT(s). Extensive case studies are conducted to showcase BAPT-FL's advantage over its counterparts in terms of the metrics assessing the identified failed boards/root alarms. We also delve into its performance in volatile environmental variations such as diverse failure scenarios, network topologies, traffic distributions, and noise alarms. | Jiao, Yan; Ho, Pin-Han; Lu, Xiangzhu; Tapolcai, Janos; Peng, Limei | Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON, Canada; Budapest Univ Technol & Econ, Dept Telecommun & Media Informat, Budapest, Hungary; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu, South Korea | János, Tapolcai/B-4531-2017 | 57439024000; 7402211578; 58535452200; 6506252092; 7201574271 | y42jiao@uwaterloo.ca;p4ho@uwaterloo.ca;x244lu@uwaterloo.ca;tapolcai@tmit.bme.hu;auroraplm@knu.ac.kr; | 20TH INTERNATIONAL CONFERENCE ON THE DESIGN OF RELIABLE COMMUNICATION NETWORKS, DRCN 2024 | 2639-2313 | 0 | 2025-04-16 | 0 | 1 | board-level failure localization; Optical Transport Networks (OTN); graph neural network (GNN); integer linear programming (ILP) | FAULT LOCATION | board-level failure localization; graph neural network (GNN); integer linear programming (ILP); Optical Trans-port Networks (OTN) | Alarm systems; Backpropagation; Failure (mechanical); Graph neural networks; Network topology; Board-level; Board-level failure localization; Functional graphs; Graph neural network; Graph neural networks; Integer linear programming; Localisation; Optical trans-port network; Optical-; Integer programming | English | 2024 | 2024 | 10.1109/drcn60692.2024.10539167 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Article | One-Way Ranging (OWR)-Based Positioning Technique with Time-Asynchronized UWB Anchor Nodes | With the increasing demand for location-based services, precise location estimation technology is becoming increasingly important. In particular, UWB technology enables precise location estimation at the centimeter level by utilizing a wide bandwidth of more than 500 MHz, so major smartphone manufacturers are actively applying UWB technology. Ranging methods using UWB are generally classified into two-way ranging (TWR) and one-way ranging (OWR). The OWR method has the advantage of simplicity, but has the constraint that the time synchronization between UWB devices must be precisely maintained for high accuracy. To overcome these limitations, in this paper, we propose an innovative OWR-based positioning technique enabling precise location estimation under the condition that UWB anchor nodes are not time-synchronized, by estimating and calibrating the time-asynchrony between UWB anchor nodes using Kalman filter. Also, we validate the positioning performance of the proposed method through simulation and confirm that it can achieve similar performance with an acceptable error range as in an ideal scenario where all devices are synchronized. © 2024, Korean Institute of Communications and Information Sciences. All rights reserved. | Ha, Young-Hun; An, Hyeon-Seon; Lee, Jong-Uk; Choi, Jeong-Sik | Kyungpook National University, School of Electronic and Electrical Engineering, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, South Korea | 59517895300; 58783988000; 59517991600; 58534394200 | jeongsik.choi@knu.ac.kr; | Journal of Korean Institute of Communications and Information Sciences | 1226-4717 | 49 | 11 | 0 | 2025-05-07 | 0 | Kalman filter; One-way ranging; UWB positioning | Korean | Final | 2024 | 10.7840/kics.2024.49.11.1583 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Open-top Bessel beam two-photon light sheet microscopy for three-dimensional pathology | Nondestructive pathology based on three-dimensional (3D) optical microscopy holds promise as a complement to traditional destructive hematoxylin and eosin (H&E) stained slide-based pathology by providing cellular information in high throughput manner. However, conventional techniques provided superficial information only due to shallow imaging depths. Herein, we developed open-top two-photon light sheet microscopy (OT-TP-LSM) for intraoperative 3D pathology. An extended depth of field two-photon excitation light sheet was generated by scanning a nondiffractive Bessel beam, and selective planar imaging was conducted with cameras at 400 frames/s max during the lateral translation of tissue specimens. Intrinsic second harmonic generation was collected for additional extracellular matrix (ECM) visualization. OT-TP-LSM was tested in various human cancer specimens including skin, pancreas, and prostate. High imaging depths were achieved owing to long excitation wavelengths and long wavelength fluorophores. 3D visualization of both cells and ECM enhanced the ability of cancer detection. Furthermore, an unsupervised deep learning network was employed for the style transfer of OT-TP-LSM images to virtual H&E images. The virtual H&E images exhibited comparable histological characteristics to real ones. OT-TP-LSM may have the potential for histopathological examination in surgical and biopsy applications by rapidly providing 3D information. | Park, Won Yeong; Yun, Jieun; Shin, Jinho; Oh, Byung Ho; Yoon, Gilsuk; Hong, Seung-Mo; Kim, Ki Hean | Pohang Univ Sci & Technol, Dept Mech Engn, Pohang, South Korea; Univ Ulsan, Coll Med, Dept Med, Seoul, South Korea; Yonsei Univ, Coll Med, Dept Dermatol, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pathol, Daegu, South Korea; Univ Ulsan, Coll Med, Asan Med Ctr, Dept Pathol, Seoul, South Korea; Pohang Univ Sci & Technol, Sch Convergence Sci & Technol, Med Sci & Engn Program, Pohang, South Korea; Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul, South Korea | ; Oh, Byung Ho/HLQ-2899-2023 | kiheankim@postech.ac.kr; | ELIFE | ELIFE | 2050-084X | 12 | ESCI | BIOLOGY | 2024 | N/A | 1 | nondestructive pathology; 3D pathology; two-photon light sheet microscopy; bessel beam illumination; 3D imaging; unsupervised deep learning; Human; Other | FLUORESCENCE; EXCITATION; TISSUE | English | 2024 | 2024-03-15 | 10.7554/elife.92614 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Conference paper | Open-top two-photon light sheet microscopy for three-dimensional tissue examination | Nondestructive three-dimensional (3D) pathology based on high-throughput 3D microscopy holds promise as a complement to traditional hematoxylin and eosin (H&E) stained slide-based two-dimensional (2D) pathology by providing rapid 3D pathological information. However, conventional techniques provided superficial information only due to shallow imaging depth. Herein, we developed open-top two-photon light sheet microscopy (OT-TPLSM) for intraoperative 3D pathology. A two-photon excitation light sheet, generated by 1D scanning of a Bessel beam illuminated the sample and planar imaging was conducted at 400 frames/s max. An imaging depth of 60-100 µm was achieved with long excitation wavelengths, and the image throughput was up to 1 cm2 per 7 min. Cells and extra-cellular matrix were visualized using extrinsic fluorescence and intrinsic second harmonic generation, respectively. OT-TPLSM was tested in various human cancer specimens and cancer structures were detected via 3D visualization. OT-TPLSM may have the potential for rapid and precise 3D histopathological examination. © 2024 SPIE. | Park, Won Yeong; Yun, Jieun; Shin, Jinho; Oh, Byung Ho; Yoon, Gilsuk; Hong, Seung-Mo; Kim, Ki Hean | Department of Mechanical Engineering, Pohang University of Science and Technology, South Korea; Department of Mechanical Engineering, Pohang University of Science and Technology, South Korea; Department of Medicine, University of Ulsan College of Medicine, South Korea; Department of Dermatology, College of Medicine, Yonsei University, South Korea; Department of Pathology, School of Medicine, Kyungpook National University, South Korea; Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, South Korea; Department of Mechanical Engineering, Pohang University of Science and Technology, South Korea | 57210463062; 58740523300; 56482570500; 55576410700; 59849712600; 58628329900; 57416795300 | kiheankim@postech.ac.kr; | Proceedings of SPIE - The International Society for Optical Engineering | 0277-786X | 13076 | 0 | 2025-04-16 | 0 | 3D imaging; 3D pathology; Bessel beam illumination; nondestructive pathology; two-photon light sheet microscopy; unsupervised deep learning | Deep learning; Diseases; Nonlinear optics; Photons; Three dimensional computer graphics; 3D imaging; 3d pathology; Beam illumination; Bessel beam; Bessel beam illumination; Light-sheet microscopies; Non destructive; Nondestructive pathology; Two-photon light; Two-photon light sheet microscopy; Unsupervised deep learning; Pathology | English | Final | 2024 | 10.1117/12.3016904 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Optimal concentrations of plant growth regulators and cultivation conditions for plant regeneration from leaf explants of Aster maackii; [총개미취 잎 절편으로부터 식물체 재분화에 적합한 식물생장조절물질 조성 및 배양 환경 구명] | The perennial plant Aster maackii has excellent antioxidant activity and high medicinal potential, making it a valuable plant resource. However, its natural habitat is expected to decrease in area owing to climate change; thus, ex situ conservation will be necessary. Therefore, we aimed to determine the optimal conditions for the propagation of Aster maackii using tissue culture techniques. Leaf explants were cultured on Murashige and Skoog (MS) medium treated with cytokinin hormones alone (6-benzylaminopurine [BAP], zeatin, thidiazuron [TDZ], 6-(γ,γ-dimethylally-lamino)purine, and meta-topolin) or in combination with auxin hormones (1-naphthaleneacetic acid and indole-3-butyric acid [IBA]) for 8 weeks, and the induction of shoots from explants was compared. We also attempted to determine the optimal light conditions by culturing explants under different light and dark conditions. In the cytokinin mono-treatment group, highest shoot induction was observed under light conditions with 0.5 mg/L zeatin treatment. However, in the TDZ treatment group, leaf explants were hyperhydrated. In the cytokinin and auxin mixed treatment group, best results were achieved using 2.0 mg/L BAP and 0.5 mg/L IBA treatment under 4 weeks of dark followed by 4 weeks of light conditions. Additionally, shoot induction responses were observed only in the experimental group where BAP was added. Overall, cytokinin monotreatments were more effective for shoot induction than were combined treatments. Most healthy shoots were induced in the zeatin treatment group. Subsequently, shoots were subcultured on 1/2MS medium to induce rooting and shoot growth, and plantlets were obtained. ©Korean Society for Plant Biotechnology. | Park, Jun Young; Lee, Seok Hui; Kim, Dae Sol; Kong, Hyeon Jong; Nam, Gi Heum; Park, Ji Eun; Lee, Yang Jin; Kang, Jun Won | Department of Forestry, Kyungpook National University, Daegu, 41566, South Korea; Department of Forestry, Kyungpook National University, Daegu, 41566, South Korea; Department of Forestry, Kyungpook National University, Daegu, 41566, South Korea; Department of Forestry, Kyungpook National University, Daegu, 41566, South Korea; National Institute of Biological Resources, Miryang, 50452, South Korea; National Institute of Biological Resources, Miryang, 50452, South Korea; National Institute of Biological Resources, Miryang, 50452, South Korea; School of Forest Sciences and Landscape Architecture, Kyungpook National University, Daegu, 41566, South Korea | 58418511600; 58419182700; 58420519800; 59426138100; 56640901300; 59217464200; 59426138200; 35224649300 | jwkang15@knu.ac.kr; | Journal of Plant Biotechnology | 1229-2818 | 51 | 1 | 0 | 2025-05-07 | 1 | Aster maackii; Plant regeneration; Shoot organogenesis | Korean | Final | 2024 | 10.5010/jpb.2024.51.028.286 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Optimal Low Earth Orbit Satellite Selection Algorithm to Reduce Handover Failure Rate in NTN | LEO satellites provide low latency and high data transmission speeds in NTN, ensuring reliable coverage for UE over wide areas. However, due to their high speed of 7-8 km/s, frequent handovers are required as the communication links with LEO satellites change often. BHO is not suitable for satellite communications due to unnecessary handovers and increased energy consumption. Conditional handover, specified in 3GPP Release 16, uses various trigger conditions to maintain stable network connections despite the rapid movement and irregular cell coverage of LEO satellites. This paper proposes an algorithm for selecting the optimal target satellite to minimize handover failure probability and provide uninterrupted service to UE. The proposed algorithm considers the available resources of the satellites in addition to existing research, reducing handover failures due to resource shortages. The proposed optimization algorithm and reward function demonstrate superior performance compared to existing algorithms. © 2024, Korean Institute of Communications and Information Sciences. All rights reserved. | Seo, Kyunghee; Kwon, Jinsol; Back, Hoki | Kyungpook National University, School of Computer Science and Engineering, South Korea; Kyungpook National University, School of Computer Science and Engineering, South Korea; Kyungpook National University, School of Computer Science and Engineering, South Korea | 58934320900; 59517407800; 59517991800 | neloyou@knu.ac.kr; | Journal of Korean Institute of Communications and Information Sciences | 1226-4717 | 49 | 11 | 0 | 2025-05-07 | 0 | Baseline handover; Conditional handover; Non-terrestrial Networks; Optimization | Korean | Final | 2024 | 10.7840/kics.2024.49.11.1574 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Optimal model for selection of material with low emission of indoor air pollutants | When the amount of data to be reviewed is large and the properties of the material are complex, it is difficult to make a rational decision in selecting the optimal material. Therefore, in this study, we tried to develop an optimization model that comprehensively considers user requirements, performance and economic feasibility of materials for selecting materials with low emission of indoor air pollutants. To this end, a database was constructed considering the economic feasibility by applying the concept of LCC (Life Cycle Cost) and presenting price range options that can be selected by the user. A genetic algorithm was used to construct a model to derive a material plan that could achieve the target score while satisfying economic feasibility and user requirements. As a result of model verification and verification cases, materials were selected only within the range according to the price range option and user selection criteria for each space and part. The efficiency and effectiveness of this model were confirmed. In this study, reliable results can be presented by presenting a model that can automatically select an algorithm for the optimal preferred material selection problem that is difficult for humans to solve cognitively with database construction and user selection information. Since it can be used in other fields, scalability and usability of this model are expected. In addition, it helps user to reduce the time of the material selection process and the price of materials is also considered, so that it is expected to help improve the economic feasibility of overall construction. © 2023 by author(s). | Seong-Min, Kwon; Byung-Soo, Kim | Department of Civil Engineering, Kyungpook National University, Daegu, Bukgu, 41566, South Korea; Department of Civil Engineering, Kyungpook National University, Daegu, Bukgu, 41566, South Korea | 58899750000; 57013677400 | bskim65@knu.ac.kr; | Journal of Infrastructure, Policy and Development | 2572-7923 | 8 | 1 | 1.44 | 2025-04-16 | 2 | economic feasibility; genetic algorithm; material selection; optimal preferred materials; user-choice-based | English | Final | 2024 | 10.24294/jipd.v8i1.2545 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Proceedings Paper | Optimization of Broadband, Polarization-independent Metasurface Using Gradient-based Inverse Design | In recent decades, metasurface have been interested to seek the possibilities of replacing conventional optics such as lens, mirror, and antenna. However, it was quite time-intensive task to design meta-atoms of desired optical properties with traditional design methods, which initialize first and then conducting parametric sweeping for analyzing the structure. Here, we adopted the adaptive moment estimation optimization algorithm to inverse-design the meta-atoms which show similar cross-polarization efficiencies in the broadband visible light region (450nm-650nm). Furthermore, thanks to the meta-atoms which utilizes Pancharatnam-Berry phase, we simply obtained the phase-delayed meta-atoms of out-of-phase condition without further calculations. Our future works of integrating every meta-atom into a meta-lens which shows broadband high transmission efficiencies with dispersion-limited behavior. | Choi, Il-Su; Lee, Seung-Yeol | Kyungpook Natl Univ, Coll IT Engn, Sch Elect & Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | 59378173300; 59844521600 | METAMATERIALS, METADEVICES, AND METASYSTEMS 2024 | 0277-786X | 1996-756X | 13109 | 0 | 2025-05-07 | 0 | 0 | Nanophotonics; Metasurface; Inverse design algorithm; Broadband Meta-lens | Broadband Meta-lens; Inverse design algorithm; Metasurface; Nanophotonics | Adaptive optics; Lens antennas; Light polarization; Optical depth; Optical design; Optical instrument lenses; Shape optimization; Broadband meta-lens; Design method; Gradient based; Inverse design algorithm; Inverse designs; Metasurface; Optical-; Optimisations; Polarization independent; Property; Inverse problems | English | 2024 | 2024 | 10.1117/12.3031563 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Article | Optimization of electrochemical regeneration of intercalated MXene for the adsorptive removal of ciprofloxacin: Prospective mechanism | 2D-Ti3C2Tx MXene nanosheets intercalated with sodium ions (SI–Ti3C2Tx) were synthesized and utilized in simultaneous adsorption and electrochemical regeneration with ciprofloxacin (CPX). The primary focus of this study is to investigate the long-term stability of SI–Ti3C2Tx MXene and to propose the underlying regeneration mechanisms. The successful synthesis of Ti3AlC2, Ti3C2Tx MXene, and SI–Ti3C2Tx MXene was confirmed using X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. Electrochemical regeneration parameters such as charge passed, regeneration time, current density, and electrolyte composition were optimized with values of 787.5 C g−1, 7.5 min, 10 mA cm−2, and 2.5w/v% sodium chloride, respectively, enabling the complete regeneration of the SI–Ti3C2Tx MXene. In addition, the electrochemical regeneration significantly enhanced CPX removal from the SI–Ti3C2Tx MXene owing to partial amorphization, disorderliness, increased functional groups, delamination, and defect creation in the structure. Thus, the synthesized nano-adsorbent has proven helpful in practical water treatment with optimized electrochemical regeneration processes. © 2023 Elsevier Ltd | Ghani, Ahsan Abdul; Kim, Jinseob; Park, Juhui; Lee, Seongju; Kim, Bolam; Lim, Youngsu; Hussain, Muzammil; Manchuri, Amaranadha Reddy; Devarayapalli, Kamakshaiah Charyulu; Kim, Gyuhyeon; Lee, Dae Sung | Department of Chemical Engineering, University of Karachi, Main University Road, Sindh, Karachi, 75270, Pakistan; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea | 57218294089; 58168881100; 58170152500; 58169251700; 57208922438; 57207112603; 58279975000; 58343647900; 15069351300; 58099353000; 55568524907 | daesung@knu.ac.kr; | Chemosphere | 0045-6535 | 346 | 1.67 | 2025-04-16 | 4 | Adsorption; Ciprofloxacin; Divided cell; Electrochemical regeneration; MXene | Adsorption; Ciprofloxacin; Photoelectron Spectroscopy; Sodium Chloride; Antibiotics; Metal ions; Silicon; Silicon compounds; Sodium chloride; Titanium compounds; Water treatment; X ray photoelectron spectroscopy; adsorbent; carbimazole; ciprofloxacin; electrolyte; nanochain; nanosheet; sodium chloride; MXene; sodium chloride; Adsorptive removal; Ciprofloxacin; Divided cell; Electrochemical regeneration; Long term stability; Mxene; Optimisations; Prospectives; Sodium ions; Synthesised; adsorption; antibiotics; electrochemical method; electrolyte; optimization; pollutant removal; water treatment; adsorption; adsorption kinetics; Article; chemical interaction; controlled study; current density; desorption; electrochemical analysis; high performance liquid chromatography; isotherm; oxidation; quality control; Raman spectrometry; regeneration; scanning electron microscopy; synthesis; vibration; waste component removal; water treatment; X ray diffraction; X ray photoemission spectroscopy; adsorption; photoelectron spectroscopy; Electrolytes | English | Final | 2024 | 10.1016/j.chemosphere.2023.140544 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Optimization of Manufacturing Conditions for Radiation-Crosslinked Hydrogels - Part 1: Effects of Raw Material Mixing Ratios on Hydrogel Properties -; [방사선 가교 기반 하이드로겔의 제조 조건 최적화 연구 - 제1보: 원료 혼합 비율이 하이드로겔 특성에 미치는 영향 -] | Carboxymethyl cellulose (CMC) is a promising feedstock candidate for producing eco-friendly, high-absorbency hydrogels. Electron beam irradiation (EBI) offers a safer and more efficient method for hydrogel formation without petrochemical-based crosslinkers. In this study, citric acid (CA) was used as a cross-linking agent to prepare non-toxic and environmentally friendly hydrogels by combining CMC and irradiating with a low dose (7 kGy) of electron beam. The central composite design (CCD) was applied to investigate the effects of CMC and CA concentrations for optimizing the water sorption ability of the hydrogels. The results indicated no gel was formed at CMC concentrations below 5%, while stable cross-linkings were achieved at concentrations above 9%. These conditions produced hydrogels with gel fractions exceeding 80%, water absorption capacities above 75 g/g, and excellent mechanical stiffness. © 2024 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved. | Choi, Sa Rang; Park, So Yeong; Im, Hyeon Ji; Kim, Jin-Hyeong; Lee, Jung Myoung | Kyungpook National University, South Korea, Biocellco Co.Ltd., South Korea; Dept. of Wood and Paper Science, School of Forestry, Science and Landscape Architecture, Kyungpook National University, South Korea; Dept. of Wood and Paper Science, School of Forestry, Science and Landscape Architecture, Kyungpook National University, South Korea; GEV Co. Ltd., South Korea; Dept. of Wood and Paper Science, School of Forestry, Science and Landscape Architecture, Kyungpook National University, South Korea | 57208283768; 59523425400; 59505190200; 58139540000; 16197909600 | jmylee@knu.ac.kr; | Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry | 0253-3200 | 56 | 6 | 0.55 | 2025-05-07 | 2 | Carboxymethyl cellulose; citric acid; electron beam; hydrogel; response surface design | Carboxymethyl Cellulose; Electrons; Fractions; Gels; Joining; Stiffness; Water Absorption; Crosslinking; Carboxymethyl cellulose; Cross-linked hydrogels; Eco-friendly; Electron-beam; Manufacturing conditions; Material mixing; Mixing ratios; Optimisations; Property; Response surface designs; Paper and pulp industry | Korean | Final | 2024 | 10.7584/jktappi.2024.12.56.6.84 | 바로가기 | 바로가기 |
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