연구성과로 돌아가기
2024 연구성과 (255 / 286)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Proceedings Paper | Design of black matrix in meta-mirror applied micro-OLED cavity using nanoslit of vertical plasmonic resonance | The high-resolution micro-display is essential component of augment reality and virtual reality devices. The mature fabrication and development of organic light emitting diodes (OLEDs) make the high-resolution micro-OLEDs. Metasurfaces are crucial part to realize the high-resolution micro-OLED. Non-color filter design with constant cavity length of each subpixel have been achieved by meta-mirror which consists of nanoscale silver pillars with distinct diameter and period for each subpixel. In this case, the meta-mirror only served to control the reflection phase, but by adding a dielectric layer to the meta-mirror, it can also function as an absorber. Through this idea, we designed a meta surface to function as a black matrix (BM) by implementing an absorber on the bottom mirror of micro-OLED and verified through simulations that it operates as a BM. From simulations, the designed absorber shows over 90% averaged absorption in whole visible range (400-750 nm) and we demonstrated that the proposed absorber can function as a BM in various designs, including the traditional BM design and the pantile diamond pixel design. | Cho, Eui-Soo; Lee, Seung-Yeol | Kyungpook Natl Univ, Coll IT Engn, Sch Elect & Elect Engn, Daegu, South Korea | 58931791800; 59844521600 | METAMATERIALS, METADEVICES, AND METASYSTEMS 2024 | 0277-786X | 1996-756X | 13109 | 0 | 2025-05-07 | 0 | 0 | Micro-OLED; Black matrix; Metasurface; Absorber; Plasmonics | Absorber; Black matrix; Metasurface; Micro-OLED; Plasmonics | Display devices; Integrated circuit design; Laser beams; Luminescence of gases; Luminescence of liquids and solutions; Microlenses; Photonics; Structural analysis; Surface plasmon resonance; Absorber; Black matrixes; High resolution; Lightemitting diode; Metasurface; Micro-organic light emitting diode; Nanoslits; Organic light-emitting; Plasmonics; Sub-pixels; Organic light emitting diodes (OLED) | English | 2024 | 2024 | 10.1117/12.3030817 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Conference paper | Design of Printed Circuit Steam Generator for the Modular Integrated Gas-Cooled High Temperature Reactor | Advanced reactors, such as the Horizontal Compact High Temperature Gas Reactor (HC-HTGR), require compact steam generators for near-term deployment as an alternative to the traditional shell-and-tube steam generators to achieve a relatively high level of compactness for the reactors. The recently proposed Modular Integrated Gas-cooled High Temperature Reactor (MIGHTR) that is under development by one of the U.S. Department of Energy's Advanced Reactor Demonstration Program projects is an HC-HTGR design, aiming to increase its reactor building power density by four to five times. Therefore, printed circuit steam generator (PCSG) has gained interest as a compact steam generator potentially applicable to the MIGHTR. Previous work on printed circuit heat changers is primarily focused on single-phase flow applications, and thus two-phase experimental data involving flow boiling in such heat exchangers are hardly available. The present work presents a prototypic PCSG design by employing zigzag-shaped flow channels to minimize its volume and pressure drop. A genetic algorithm (NSGAII) was utilized to perform PCSG volume optimization. Based on the optimization results, two lab-scale PCSGs were designed for testing under close-to-prototypic conditions with a reduced thermal duty of 24 kW each to investigate their thermal performance and density wave oscillations on the cold side due to phase change. A test facility that couples an existing high-temperature helium loop with a newly designed water/steam loop is currently under construction to test these PCSGs with an anticipated hot-side helium inlet temperature of 687 °C at 3.0 MPa and a cold-side feedwater inlet temperature of 193 °C at 7.0 MPa. © 2024 NUTHOS. All Rights Reserved. | Park, Haekyun; Wang, Chengqi; Sun, Xiaodong | Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Blvd, Ann Arbor, 48109, MI, United States, School of Energy Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Blvd, Ann Arbor, 48109, MI, United States; Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Blvd, Ann Arbor, 48109, MI, United States | 56541973600; 57205629725; 57315863500 | xdsun@umich.edu; | Proceedings of the 14th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation, and Safety, NUTHOS 2024 | 0 | 2025-06-11 | 0 | Genetic algorithm; MIGHTR; Mini-channel boiling; Printed Circuit Steam Generator; Zigzag channel | Boiler circulation; Boiler firing; Coke fired boilers; Fire tube boilers; Gas fired boilers; Heat exchangers; High pressure boilers; Oil fired boilers; Packaged boilers; Printed circuit design; Reactor refueling; Reboilers; Steam; Steam accumulators; Superheater tubes; Advanced reactors; Gas-cooled; High temperature gas; High-temperature reactor; Mini-channel boiling; Mini-channels; Modular integrated gas-cooled high temperature reactor; Modulars; Printed circuit steam generator; Zigzag channel; Water tube boilers | English | Final | 2024 | 10.13182/nuthos14-87 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | Article | Detection of Peak Intensity Using an Integrated Optical Modeling Method for Identifying Defective Apple Leaves † | The identification of defects in apple leaf specimens is crucial for mitigating crop loss and maintaining harvest quality. This study investigates the applicability of an intensity detection simulation-integrated optical cross-sectional modeling method for detecting defective apple leaf specimens. The technique utilizes a customized 840 nm optical coherence tomography (OCT). The method involved using a peak-intensity detection technique to analyze OCT signal intensity variations in multi-layered leaf structures. Results demonstrate the potential of the method to identify morphological differences between leaf specimens from healthy and infected trees and, specifically, healthy leaf specimens from infected trees. Implementing this method enables cost saving through timely interventions to reduce the impact of leaf defects on crop production. © 2024 by the authors. | Kahatapitiya, Nipun Shantha; Kalupahana, Deshan; Mohamed, Hana; Silva, Bhagya Nathali; Wijenayake, Udaya; Han, Sangyeob; Seong, Daewoon; Jeon, Mansik; Kim, Jeehyun; Wijesinghe, Ruchire Eranga | Department of Computer Engineering, Faculty of Engineering, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Department of Computer Engineering, Faculty of Engineering, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Department of Computer Engineering, Faculty of Engineering, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Department of Information Technology, Faculty of Computing, Sri Lanka Institute of Information Technology, Malabe, 10115, Sri Lanka, Center for Excellence in Informatics, Electronics & Transmission (CIET), Sri Lanka Institute of Information Technology, Malabe, 10115, Sri Lanka; Department of Computer Engineering, Faculty of Engineering, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; ICT Convergence Research Center, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea; School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea; School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea; School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Center for Excellence in Informatics, Electronics & Transmission (CIET), Sri Lanka Institute of Information Technology, Malabe, 10115, Sri Lanka, Department of Electrical and Electronic Engineering, Faculty of Engineering, Sri Lanka Institute of Information Technology, Malabe, 10115, Sri Lanka | 58781581100; 59302759700; 59330070500; 57192304387; 55547801900; 57193695305; 57212512353; 24171094000; 7601373350; 56018152300 | udayaw@sjp.ac.lk;eranga.w@sliit.lk; | Engineering Proceedings | 2673-4591 | 82 | 1 | 0 | 2025-05-07 | 0 | agricultural inspection; defective apple leaves; intensity detection simulation; spectral domain optical coherence tomography | English | Final | 2024 | 10.3390/ecsa-11-20515 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Proceedings Paper | Detection of Road Line Markings based on Memory-centric Computing | In the era of artificial intelligence, road lane marking detection is an important application of computer vision. Lane marking detection technology, which can be considered most important in the implementation of autonomous vehicles, requires a lot of computation and processing time. However, the limitations of conventional processor-centric computing for lane detection systems are progressively emerging due to the "memory wall" issue and Von Neumann bottlenecks. In this paper, we propose an algorithm to identify and differentiate three road line markings : continuous, broken, and double lines based on memory-centric computing principles. The proposed algorithm was first created in software with Python and OpenCV to confirm its viability, then the algorithm was converted to RTL using the Xilinx Vitis High-Level Synthesis (HLS) tool for hardware implementation. For FPGA implementation, we choose Xilinx Alveo U50 FPGA Accelerator. The results of this work show that the algorithm successfully distinguishes and identifies road marking lines, achieving faster processing time. | Yusupbaev, Bobokhon; Yu, Ke; Choi, Jun Rim | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea | ke, yu/LUZ-3797-2024 | 58759308800; 58099769200; 7501392846 | bobokhon9819@gmail.com;yuke12345@naver.com;jrchoi@ee.knu.ac.kr; | 2024 INTERNATIONAL TECHNICAL CONFERENCE ON CIRCUITS/SYSTEMS, COMPUTERS, AND COMMUNICATIONS, ITC-CSCC 2024 | 2997-7401 | 0 | 2025-05-07 | 0 | 0 | Memory-centric computing; Road lane marking detection; Computer vision; and High-Level Synthesis (HLS) | and High-Level Synthesis (HLS); Computer vision; Memory-centric computing; Road lane marking detection | C (programming language); Hadrons; Image segmentation; Problem oriented languages; And high-level synthesis; Autonomous Vehicles; Computation time; Detection technology; High-level synthesis; Lane detection; Lane marking detection; Memory-centric computing; Processing time; Road lane marking detection; Memory architecture | English | 2024 | 2024 | 10.1109/itc-cscc62988.2024.10628362 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Article | Deterioration Mechanism and Repair Methods for Concrete Decks in Bridges | It is imperative to propose effective maintenance strategies for deteriorated bridge concrete deck, given the increasing cases of maintenance failures. This study aims to elucidate the deterioration mechanism and patterns of bridge concrete deck degradation. Additionally, it presents various repair methods and flowcharts for determining the most suitable repair method for each type of deterioration. The deterioration mechanisms include initial defects, cracks, heavy vehicle loads, and the infiltration of water and deicing chemicals through cracks. These factors lead to the expansion and deepening of deterioration, exacerbated by freeze-thaw cycles and heavy vehicles. Repair methods are categorized into concrete overlay repair (Type A), partial-depth deck repair (Type B), and full-depth deck repair (Type C). The study also proposes flowcharts for determining the appropriate repair method based on results obtained from visual and in-depth inspections of deteriorated concrete decks. By following this structured approach, the maintenance and rehabilitation of bridge decks can be conducted more efficiently, reducing long-term costs and enhancing the resilience of bridge infrastructure. © 2024, Korea Concrete Institute. All rights reserved. | Jeong, Yoseok; Lee, Ilkeun; Min, Geunhyeong; Kim, Wooseok | Department of Construction and Disaster Prevention Engineering, Kyungpook National University, Sangju, 37224, South Korea; Expressway & Transportation Research Institute, Construction & Environment Research Group, Hwaseong, 20896, South Korea; Department of Civil Engineering, Chungnam National University, Daejeon, 34134, South Korea; Department of Civil Engineering, Chungnam National University, Daejeon, 34134, South Korea | 59510736900; 55455771300; 57211278402; 56286036900 | wooseok@cnu.ac.kr; | Journal of the Korea Concrete Institute | 1229-5515 | 36 | 4 | 0.35 | 2025-05-07 | 1 | Concrete deck deterioration; Deterioration mechanism; Deterioration types; Repair methods | Korean | Final | 2024 | 10.4334/jkci.2024.36.4.347 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Determination of the geographical origin of Rehmannia glutinosa by NMR, UPLC-QTOF/MS and multivariate statistical analysis | Rehmannia glutinosa is a widely used medicinal herb in the domestic market. The type and composition of metabolites and the efficacy of medicinal herbs can vary depending on variances in cultivation environment, such as origin. Metabolomic approaches can be used to objectively determine the geographical origin. In this study, Korean and Chinese R. glutinosa were analyzed using a multi-platform based on nuclear magnetic resonance spectroscopy and ultra-performance liquid chromatography quadrupole time of flight mass spectrometry. A multivariate statistical analysis of non-targeted analysis data and a comparison of quantitative analysis results of primary and secondary metabolites confirmed the differences between Korean and Chinese R. glutinosa. In the biomarker analysis, the metabolites resulting from the discrimination of geographical origin included various of organic acids such as malate, etc. It was found that organic acids can change based on environmental circumstances and that they play a significant role in growth, such as solubilizing nutrients. © The Korean Society for Applied Biological Chemistry 2024. | Jang, Jin-Kyu; Yoon, Dahye; Shin, Woo Cheol; Choi, Bo-Ram; Na, Hyeon Seon; Yoo, Ji-Seung; Lee, Dae Young | BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea; Department of Herbal Crop Research, National institute of Horticultural and Herbal Science, RDA, Eumseong, 27709, South Korea; BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea; Department of Herbal Crop Research, National institute of Horticultural and Herbal Science, RDA, Eumseong, 27709, South Korea; BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea, Department of Herbal Crop Research, National institute of Horticultural and Herbal Science, RDA, Eumseong, 27709, South Korea; BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea; BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea | 58756632600; 55855383700; 57212601607; 57194340567; 57212602549; 59510752300; 57750904900 | dylee80@knu.ac.kr; | Journal of Applied Biological Chemistry | 1976-0442 | 67 | 1 | 0 | 2025-05-07 | 0 | Geographical origin; Metabolites profiling; Multivariate statistical analysis; Nuclear magnetic resonance; Rehmannia glutinosa; Ultra-performance liquid chromatography quadrupole time of flight mass spectrometry | Korean | Final | 2024 | 10.3839/jabc.2024.033 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Determining the possibility of passage through narrow alleys using ultrasonic sensors | The complex road topography of South Korea presents significant challenges to the timely arrival of emergency vehicles. Compounding the issue, obstacles such as legally or illicitly constructed structures, and improperly parked or stationary vehicles, frequently obstruct the path of emergency vehicles. To address these challenges, this study introduces a novel system aimed at enhancing emergency response times. The system employs ultrasonic sensors that can be integrated into personal devices to measure the width of the numerous narrow alleys prevalent in Korea's densely populated regions. Experiments demonstrate that within a 1-meter range in front of a narrow alley with widths varying between 270 cm and 450 cm where vehicle maneuvering is possible, it's possible to accurately gauge the width using two ultrasonic sensors, achieving a precision within a 5 cm margin of error. This level of accuracy enables the practical assessment of whether emergency vehicles can access the area in real-time by identifying the alley's narrowest point. The proposed system is a cost-effective method using easy-to-buy devices for augmenting emergency preparedness and enhancing emergency response times by ensuring that emergency vehicles can navigate through alleys, thereby fostering a safer living environment. © 2024, Intelektual Pustaka Media Utama. All rights reserved. | Jeong, Yeonchang; Jung, Im Y. | School of Electronics Engineering, Kyungpook National University, Daegu City, South Korea; School of Electronic and Electrical Engineering, Faculty of Electronics Engineering, Kyungpook National University, Daegu City, South Korea | 59136031700; 18037522200 | iyjung@ee.knu.ac.kr; | International Journal of Advances in Applied Sciences | 2252-8814 | 13 | 2 | 0 | 2025-05-07 | 0 | Easy-to-buy device; Emergency vehicle dispatch; Life safety; Raspberry Pi; Ultrasonic sensor | English | Final | 2024 | 10.11591/ijaas.v13.i2.pp419-428 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Development and Application of an Architectural Component Combination Algorithm for Generative Design-based DfMA Design Support | The AEC industry faces persistent challenges such as an aging workforce and low productivity. Off-Site Construction (OSC) and Design for Manufacture and Assembly (DfMA) are emerging as solutions to these issues, receiving significant attention and application in the United States, Singapore, Hong Kong, and recently in Korea. DfMA, a design method that incorporates front loading at the design stage, involves analyzing and disassembling all aspects of a building to design modules optimized for transport and installation. Recognized for its potential to enhance safety, reduce construction time, and increase productivity, DfMA addresses the limitations of OSC construction, particularly errors in the complex design and fabrication stages. To enhance OSC's effectiveness and productivity, this study proposes the development of a BIM-based generative design algorithm. This algorithm aims to rapidly generate numerous combinations of building components using domestic OSC materials, applying DfMA principles at the design stage. The research methodology includes a review of DfMA concepts, analysis of case studies and prior research, investigation and classification of domestic OSC building components, and development of a generative design algorithm for building component combinations. By applying this algorithm, the study seeks to identify and verify the optimal combination of components, considering budget and selected types. Despite DfMA's advantages, issues such as design complexity, uniformity, and assembly errors have been extensively studied. The algorithm introduced in this research could contribute significantly to DfMA-based architectural design, improving fabrication and assembly efficiency early in the design process. © 2024 Architectural Institute of Korea. | Hong, Soon Min; Kim, Geunjae; Gu, Hyeongmo; Choo, Seungyeon | School of Architecture, Kyungpook National University, South Korea; School of Architecture, Kyungpook National University, South Korea; School of Architecture, Kyungpook National University, South Korea; School of Architecture, Kyungpook National University, South Korea | 57734398300; 57543331500; 57209659182; 36835366900 | choo@knu.ac.kr; | Journal of the Architectural Institute of Korea | 2733-6239 | 40 | 5 | 0 | 2025-05-07 | 0 | DfMA; Generative Design; Optimization; OSC | Korean | Final | 2024 | 10.5659/jaik.2024.40.5.53 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Development and Characterization of Hafnium-Doped BaTiO3 Nanoparticle-Based Flexible Piezoelectric Devices | Energy harvesting technology that converts the wasted energy resources into electrical energy is emerging as a semipermanent power source for self-powered electronics and wireless low-power sensor systems. Among the various energy conversion techniques, flexible piezoelectric energy harvesters (f-PEHs), using materials with piezoelectric effects, have attracted significant interest because they can harvest a small mechanical energy into electrical signals without constraints of time and space in various environments. In this study, we used a flexible piezoelectric composite film fabricated by dispersing BaHfxTi(1-x)O3 (x = 0, 0.01, 0.05, 0.1) piezoelectric powders inside a polymeric matrix to facilitate f-PEHs. The fabricated f-PEH with optimal Hf contents (x = 0.05) generated a maximum output voltage of 0.95 V and current signal of 130 nA with stable electrical/mechanical disabilities under periodically bending deformations. In addition, we demonstrated a cantilever-type f-PEH and investigated its potential as a sensor by characterizing the output performance under mechanical vibrations at various frequencies. This study provides the breakthrough for realizing self-powered energy harvesting and sensing systems by adopting the lead-free piezoelectric composites under vibrational environments. © 2024, Korean Sensors Society. All rights reserved. | Jang, Haksu; Park, Hyeon Jun; Kim, Gwang Hyeon; Lee, Gyoung-Ja; Ji, Jae-Hoon; Lee, Donghun; Jung, Young Hwa; Lee, Min-Ku; Baek, Changyeon; Park, Kwi-Il | School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Nuclear System Integrity Sensing and Diagnosis Research Division, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 Beon-gil, Yuseong-gu, Daejeon, 34057, South Korea; Materials Development Group, Corporate R&D Institute, Samsung Electro-Mechanics, Gyeonggi-do, Suwon, 16674, South Korea; School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; PLS-II Beamline Division, Pohang Accelerator Laboratory, 80 Jigokro-127-beongil, Nam-gu, Gyeongbuk, Pohang, 37673, South Korea; Nuclear System Integrity Sensing and Diagnosis Research Division, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 Beon-gil, Yuseong-gu, Daejeon, 34057, South Korea; Nuclear System Integrity Sensing and Diagnosis Research Division, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 Beon-gil, Yuseong-gu, Daejeon, 34057, South Korea; School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea | 59302327400; 58859176900; 59303138700; 8588965200; 57077596200; 59444729800; 22979935700; 59302175900; 57095549400; 35280874200 | cybaek@kaeri.re.kr;kipark@knu.ac.kr; | Journal of Sensor Science and Technology | 1225-5475 | 33 | 1 | 0 | 2025-05-07 | 0 | BaTiO<sub>3</sub>; Energy harvesting; Flexible; Hafnium; Piezoelectric | Korean | Final | 2024 | 10.46670/jsst.2024.33.1.34 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Development and Implementation of a YOLOv5-based Adhesive Application Defect Detection Algorithm | This study investigated the use of YOLOv5 for defect detection in transparent adhesives, comparing two distinct training methods: one without preprocessing and another incorporating edge operator preprocessing. In the first approach, the original color images were labeled in various ways and trained without transformation. This method failed to distinguish between the original images with properly applied adhesive and those exhibiting adhesive application defects. An analysis of the factors con-tributing to the reduced learning performance was conducted using histogram comparison and template matching, with performance validated by maximum similarity measurements, quantified by the Intersection over Union values. Conversely, the preprocessing method involved transforming the original images using edge operators before training. The experiments confirmed that the Canny Edge Detection operator was particularly effective for detecting adhesive application defects and proved most suitable for real-time defect detection. © 2024, Korean Sensors Society. All rights reserved. | Park, Jung-Kyu; Choi, Doo-Hyun | R&D Center, OHSUNG Electronics, 335-4, Sanho-daero, Gyeongsangbuk-do, Gumi-si, South Korea; School of Electronics Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, South Korea | 59468902400; 7401642881 | dhc@ee.knu.ac.kr; | Journal of Sensor Science and Technology | 1225-5475 | 33 | 6 | 0 | 2025-05-07 | 0 | Canny edge detection; Histogram; Template matching; Transparent adhesive; YOLOv5 | English | Final | 2024 | 10.46670/jsst.2024.33.6.510 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Development and Validation of an HPLC-DAD Method for Simultaneous Quantitation of Steppogenin and Flavonoids from the Stems of Morus alba | Morus alba L. is well-known for its medicinal and economic value, particularly in Asian countries. Among the isolated compounds from this plant, steppogenin is exhibited as a flavonoid with promising pharmacological properties. This study focused on isolating bioactive compounds, notably steppogenin, from the ethyl acetate extract of M. alba. Additionally, a high-performance liquid chromatography-diode array detector (HPLC-DAD) method for the simultaneous quantification of steppogenin and isolated compounds was developed and validated. The calibration curve showed excellent linearity, with a correlation coefficient (R2) value greater than 0.9957. The limit of detection (LOD) ranged from 0.006 to 0.018 μg/mL, whereas the limit of quantification (LOQ) ranged from 0.020 to 0.061 μg/mL. In precision tests conducted intra-day and inter-day, the accuracy was between 97.32% and 106.39%, with relative standard deviations (RSD) less than 2.27% and 1.65%, respectively. The presence of steppogenin and other flavonoids was confirmed by the study, contributing to the understanding of the chemical composition of M. alba. This validated analytical method offers a reliable means of quantifying steppogenin and aiding future research into its therapeutic potential. © 2024, Korean Society of Pharmacognosy. All rights reserved. | Phong, Nguyen Viet; Lee, You Mie; Min, Byung Sun; Kim, Jeong Ah | Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu, 41566, South Korea; Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu, 41566, South Korea, BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, South Korea; College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongsangbuk-do, 38430, South Korea; Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu, 41566, South Korea, BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, South Korea | 57205196739; 8230508600; 55663638200; 24722570900 | jkim6923@knu.ac.kr; | Natural Product Sciences | 1226-3907 | 30 | 2 | 0 | 2025-05-07 | 0 | Flavonoids; HPLC-DAD; Morus alba; Steppogenin | chemical compound; flavonoid; kuwanon; kuwanon c; sanggenol L; steppogenin; unclassified drug; accuracy; analytic method; Article; carbon nuclear magnetic resonance; chemical composition; chemical structure; column chromatography; correlation coefficient; development; diode array detector; high performance liquid chromatography; limit of detection; limit of quantitation; liquid chromatography; Morus alba; proton nuclear magnetic resonance; reproducibility; thin layer chromatography; validation process | English | Final | 2024 | 10.20307/nps.2024.30.2.65 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Conference paper | Development of a Smart IoT Safety Platform for Preventing Accidents in High-Risk Industrial Sites | In the modern industrial society, activities across various industrial sectors play a crucial role in driving economic growth and technological advancement. However, these activities inevitably involve risks to the safety and health of workers. Accidents and injuries at industrial sites not only threaten the lives and well-being of workers but also lead to decreased productivity, legal issues, and financial losses for companies. Among different industries, construction and manufacturing sectors account for the highest proportion of industrial accidents. These accidents often occur due to workers’ carelessness and lack of awareness. This paper proposes a smart IoT safety platform to prevent safety accidents in construction and manufacturing sites. The smart IoT safety platform consists of IoT devices, network devices, and a control server. The IoT devices are designed to monitor various types of safety incidents, such as worker monitoring, entrapment accidents, gas leaks, collapses, and falls, using wearable or site-installed devices equipped with sensors like laser, IMU, gas, and cameras. The network devices include BLE Mesh installed on IoT devices and a LoRa Mesh network to transmit data to the control server. The control server collects and monitors data from the site and includes control functions to prevent safety accidents. The development of the smart IoT safety platform aims to create a safer work environment by preventing accidents and establishing a safety culture across the industry. This integration of advanced IoT technology in safety management is expected to significantly contribute to reducing industrial accidents and enhancing overall workplace safety. © 2024 Copyright held by the owner/author(s). | Yoon, Jiyoung; Kim, Cheolhwan; Park, Yongteak | Korea Polytechnics Yeongcheon, Robot Campus, South Korea, The Department of Robot IT, the Robot Campus of Korea Polytechnics, Robot Campus-ro 1, Gyeongsangbuk-do, Yeongcheon, 38839, South Korea; Institute of Advanced Convergence Technology, Kyungpook National University, Daegu, South Korea; Institute of Advanced Convergence Technology, Kyungpook National University, Daegu, South Korea | 57022715700; 57148704100; 59535862300 | wngus235@gmail.com; | ACM International Conference Proceeding Series | 0 | 2025-05-07 | 0 | AI; IoT; Safety Platform; Sensor | Competition; Laser safety; Resource valuation; Smart manufacturing; Economic growths; Industrial accident; Industrial sector; Industrial sites; Industrial societies; IoT; Network devices; Safety accidents; Safety platform; Workers'; Losses | English | Final | 2024 | 10.1145/3702468.3702481 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | Article | Development of a Statically Balanced Lifting Device for Repetitively Transporting Construction Materials; [건설자재의 반복적 층간 이송을 위한 리프팅 장치와 단일 스프링을 이용한 기계적 중력 보상 방안] | In the field of construction automation, significant research efforts continue to focus on replacing human labor; however, the varied and dynamic nature of construction sites still requires human intervention. The high task intensity in construction sites, particularly in lifting heavy materials, frequently results in musculoskeletal disorders among workers. To address this issue, this paper proposes a lifting device to replace manual material transportation through an opening between floors. The lift is designed with a gear-constrained double parallelogram mechanism to enable straight vertical movement. Moreover, a crank-rocker mechanism is incorporated to improve efficiency in repetitive tasks, reduce the required driving torque, and simplify control complexity. Additionally, this study introduces a passive gravity compensation mechanism that employs springs and cables, tailored to the lifting process, to enhance payload capacity and stabilize actuation. Through the integration of these mechanisms, the necessary motor capacity and control costs are significantly reduced. The effectiveness of the device is validated by actuation experiments with a fabricated prototype. Copyright © The Korean Society for Precision Engineering. | Kwak, Byungseo; Lim, Seungbum; Suh, Jungwook | Department of Robot and Smart System Engineering, Kyungpook National University, South Korea; Department of Robot and Smart System Engineering, Kyungpook National University, South Korea; Department of Robot and Smart System Engineering, Kyungpook National University, South Korea | 59486895200; 58627825200; 36606826500 | jwsuh@knu.ac.kr; | Journal of the Korean Society for Precision Engineering | 1225-9071 | 41 | 12 | 0 | 2025-05-07 | 1 | Construction automation; Construction robot; Gravity compensation; Kinematic design; Lifting device; Parallelogram mechanism | Korean | Final | 2024 | 10.7736/jkspe.024.083 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Development of an efficient in vitro shoot regeneration method for carnation cultivars using cotyledons with apical shoot meristems | An efficient regeneration method was developed for two carnation cultivars (Dianthus caryophyllus L.), namely “Chabuad” and “Giant Chabuad,” by culturing different explant types [cotyledon and intact apical shoot meristem—intact shoot apical meristem (SAM), half SAM, destroyed SAM] on varying concentrations of plant growth regulators (PGRs). Cotyledon failed to regenerate shoots in any PGR combination for both cultivars, whereas the other explants exhibited considerable shoot regeneration. Among the tested explants, intact SAM exhibited a higher percentage of shoot regeneration than half SAM and destroyed SAM for both cultivars. Regarding the average number of shoots, the highest numbers were seen in half SAM, followed by intact SAM, and then destroyed SAM for both cultivars across all PGR combinations. However, most shoots regenerated from half SAM and destroyed SAM showed vitrification, whereas 5-10% of the shoots from intact SAM exhibited vitrification. The combination of thidiazuron (TDZ) and indole-3-butyric acid (IBA) exhibited a greater efficacy in inducing vitrified shoots than the BA and NAA combination. Based on the findings, it is recommended to culture intact SAM using BA and NAA combinations, particularly with BA (1.0 mg/l) and NAA (0.3 mg/l), to facilitate normal shoot regeneration in both cultivars, as this combination yielded the highest shoot regeneration efficiencies and an adequate number of normal shoots. The shoot regeneration method developed in this study demonstrates the potential for effective shoot regeneration and genetic transformation of these carnation cultivars. ⓒ Korean Society for Plant Biotechnology. | Campol, Jova Riza; Naing, Aung Htay; Adedeji, Oluwaseun Suleimon; Kang, Hyun Hee; Cho, Su Bin; Chung, Mi Young; Kim, Chang Kil | Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea; Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea; Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea; Department of Agricultural Education, Suncheon National University, Suncheon, 57922, South Korea; Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea | 57486378900; 37112768100; 57216153720; 57217681910; 59335432900; 24821361600; 7409880701 | ckkim@knu.ac.kr; | Journal of Plant Biotechnology | 1229-2818 | 51 | 1 | 0 | 2025-05-07 | 0 | Carnation; Explant types; Normal shoots; Plant growth regulators; Shoot regeneration; Vitrification | English | Final | 2024 | 10.5010/jpb.2024.51.027.278 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Conference paper | Development of Decision Support System (DSS) for surface runoff and erosion control structures planning: A case study in the Upper Citarum Watershed & towards sustainability inland waters ecosystem | The watershed ecosystem is a complex system in which there are numerous transportation and transfer mechanisms of mass and energy. To make management more effective in all national critical watersheds, there needs to be more scientific, evidence-based policymaking that is based on an understanding of the system and mechanisms of the socio-hydrological processes of the watershed. The availability of Decision Support System (DSS) technology can be the appropriate approach to this need because DSS can be an interface between scientific and practical needs (easy-to-use, easy-to-access, user-friendly). However, the availability and implementation of DSS as an important tool in the optimal design of sustainable watershed management in Indonesia are still very limited. This study aims to create a prototype DSS that practitioners and policymakers can use to identify priority areas and optimize technical solutions for controlling surface runoff and soil erosion at various scales in the internal watershed. Herein, the spatial-based numerical modeling system and process mechanism; the database and knowledge; and the Graphical User Interface (GUI) are the three main components that have been used as a framework for model-based DSS development. A distributed rainfall-runoff-erosion model (EcoHydro) is the main engine of DSS for spatially quantifying dimensions of hydrological responses, erosion rate, and sediment production according to the user's specifications and providing design options for control measures of them. The upper Citarum river basin in West Java, which is a critical and first national priority watershed, has been selected as the case study for DSS development and to demonstrate its application. Furthermore, the resulting DSS can later be developed for use in watersheds and other nationally critical lakes. © Published under licence by IOP Publishing Ltd. | Apip; Subehi, L.; Fakhrudin, M.; Lee, G.; Aisyah, S.; Wibowo, H.; Verawati, D.; Hamid, A.; Nurhidayat, A. | Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Department of Construction and Disaster Prevention Engineering, Kyungpook National University, South Korea; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia; Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), KST Soekarno, Jl. Raya Jakarta - Bogor Km. 46, Cibinong, Bogor, 16911, Indonesia | 36463083100; 25958454100; 57200557105; 59221238200; 57217222157; 24074989800; 57837312100; 57217436556; 58349560400 | IOP Conference Series: Earth and Environmental Science | 1755-1307 | 1313 | 1 | 2.76 | 2025-04-16 | 2 | Citarum; control measures; DSS; erosion; management; modeling; runoff; watershed | English | Final | 2024 | 10.1088/1755-1315/1313/1/012018 | 바로가기 | 바로가기 |
페이지 이동: