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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 | Elephant garlic extracts inhibit adipogenesis in 3t3-l1 adipocytes | Elephant garlic (Allium ampeloprasum L.) has been reported to have several pharmacological effects. However, its anti-adipogenic effect and the possible molecular mechanisms have not yet been reported. In this study, we demonstrate that elephant garlic extracts suppress adipogenesis in 3T3-L1 adipocytes. Raw and steamed elephant garlic extracts (REG and SEG, respectively) suppressed the differentiation of adipocytes and cellular lipid accumulation. Of note, the anti-differentiation effect of REG treatment on 3T3-L1 cells resulted in cytotoxicity, whereas SEG-treated cells displayed no such cytotoxicity. Additionally, SEG treatment significantly reduced the adipogenesis-related gene expression of PPAR γ, C/EBPα, adiponectin, Ap2, and LPL. To our knowledge, these results are the first evidence of the anti-adipogenic effects of elephant garlic extracts on 3T3-L1 adipocytes. © 2020 Korean Society for Microbiology and Biotechnology. All rights reserved. | Lee, Seul Gi; Hahn, Dongyup; Kim, Soo Rin; Lee, Won Young; Nam, Ju-Ock | Department of Food Science and Biotechnology, 2Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, 41566, South Korea; Department of Food Science and Biotechnology, 2Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, 41566, South Korea; Department of Food Science and Biotechnology, 2Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, 41566, South Korea; Department of Food Science and Biotechnology, 2Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, 41566, South Korea; Department of Food Science and Biotechnology, 2Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, 41566, South Korea | 56995397800; 36554163400; 36659584200; 57195940408; 7201496105 | namjo@knu.ac.kr; | Microbiology and Biotechnology Letters | 1598-642X | 48 | 3 | 0.23 | 2025-06-25 | 4 | 3t3-l1 adipocytes; Allium ampeloprasum l; Anti-adipogenic; Elephant garlic; Steamed elephant garlic | adiponectin; Allium ampeloprasum extract; antilipemic agent; apolipoprotein A2; CCAAT enhancer binding protein alpha; garlic extract; lipoprotein lipase; peroxisome proliferator activated receptor; peroxisome proliferator activated receptor gamma; unclassified drug; 3T3-L1 cell line; adipocyte; adipogenesis; Allium; Allium ampeloprasum; Article; cell differentiation; cytotoxicity; gene expression; lipid storage; nonhuman; water vapor | Korean | Final | 2020 | 10.4014/mbl.1911.11015 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Article | Elevation correction of multi-temporal digital elevation model based on unmanned aerial vehicle images over agricultural area | In this study, we propose an approach for calibrating the elevation of a DEM (Digital Elevation Model), one of the key data in realizing unmanned aerial vehicle image-based precision agriculture. First of all, radiometric correction is performed on the orthophoto, and then ExG (Excess Green) is generated. The non-vegetation area is extracted based on the threshold value estimated by applying the Otsu method to ExG. Subsequently, the elevation of the DEM corresponding to the location of the non-vegetation area is extracted as EIFs (Elevation Invariant Features), which is data for elevation correction. The normalized Z-score is estimated based on the difference between the extracted EIFs to eliminate the outliers. Then, by constructing a linear regression model and correcting the elevation of the DEM, high-quality DEM is produced without GCPs (Ground Control Points). To verify the proposed method using a total of 10 DEMs, the maximum/minimum value, average/standard deviation before and after elevation correction were compared and analyzed. In addition, as a result of estimating the RMSE (Root Mean Square Error) by selecting the checkpoints, an average RMSE was derivsed as 0.35m. Comprehensively, it was confirmed that a high-quality DEM could be produced without GCPs. © 2020 Korean Society of Surveying. All rights reserved. | Kim, Taeheon; Park, Jueon; Yun, Yerin; Lee, Won Hee; Han, Youkyung | Dept. of Geospatial Information, M.S. student, Kyungpook National University, South Korea; School of Convergence Fusion System Engineering, Undergraduate student, Kyungpook National University, South Korea; School of Convergence Fusion System Engineering, Undergraduate student, Kyungpook National University, South Korea; School of Convergence Fusion System Engineering, Kyungpook National University, South Korea; School of Convergence Fusion System Engineering, Kyungpook National University, South Korea | 57204217686; 57218222782; 57218228861; 57190774365; 55457676600 | han602@knu.ac.kr; | Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography | 1598-4850 | 38 | 3 | 0.15 | 2025-06-25 | 2 | Digital Elevation Model; Elevation Correction; Elevation Invariant Features; Precision Agriculture; Unmanned Aerial Vehicle | aerial survey; agricultural land; calibration; correction; digital elevation model; radiometric method; satellite imagery; temporal analysis | Korean | Final | 2020 | 10.7848/ksgpc.2020.38.3.223 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Article | Elevation of anti-oxidative activity and inhibitory activities against tyrosinase, elastase, collagenase and hyaluronidase of oplismenus undulatifolius by elicitor treatment | This study was designed to assess the change of the antioxidative and biological enzyme activities [tyrosinase, elastase, collagenase, and hyaluronidase (HAase)] of extracts from elicitortreated Oplismenus undulatifolius. Elicitor-treated O. undulatifolius showed higher total phenolic content than the non-treated extract. As a result of comparing the anti-oxidant activity of elicitortreated O. undulatifolius extract and non-treated extract, the elicitor-treated group showed high activity. Elicitor-treated O. undulatifolius showed higher elastase and collagenase inhibitory activities as anti-wrinkle effect, tyrosinase inhibitory activity as whitening effect, and anti-inflammation effect to induced as HAase inhibition than the non-treated extract. Therefore, elicitortreatment during O. undulatifolius cultivation in outdoors will elevate total phenolics content in the plant and elevate of various bioactivities, which will yield high quality for industrialization. © The Korean Society for Applied Biological Chemistry 2020. | Lee, Eun-Ho; Cho, Young-Je | School of Food science & Biotechnology, Kyungpook National University, 80 University Street, Bukgu, Daegu, 41566, South Korea; School of Food science & Biotechnology, Kyungpook National University, 80 University Street, Bukgu, Daegu, 41566, South Korea | 56347429100; 55265396300 | yjcho@knu.ac.kr; | Journal of Applied Biological Chemistry | 1976-0442 | 63 | 3 | 0.07 | 2025-06-25 | 1 | Anti-oxidant; Biological enzymes; Effective elevation; Elicitor; Oplismenus undulatifolius | Korean | Final | 2020 | 10.3839/jabc.2020.030 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Emitter Electrode Design to Optimize the Optical and Electrical Characteristics of Planar Solar Cells | In this study, we propose a design method to optimize the electro-optical efficiency of a planar solar cell structure by adjusting one-dimensionally periodic emitter electrodes. Since the aperture ratio of the active layer decreases as the period of the emitter electrode decreases, the amount of light absorption diminishes, affecting the performance of the device. Here we design the optimal structure of the periodic emitter electrode in a simple planar solar cell, by simulation. In terms of optics, we find the condition that shows optical performance similar to that of a reference without the emitter electrode. In addition, the optimized electrode structure is extracted considering both the optical and electrical efficiency. This work will help to increase the utilization of solar cells by suggesting a structure that can most efficiently transfer charge generated by photoelectric conversion to the electrodes. | Lee, Sangbok; Do, Yun Seon | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | yuns.do@knu.ac.kr; | KOREAN JOURNAL OF OPTICS AND PHOTONICS | KOREAN J OPT PHOTONI | 1225-6285 | 2287-321X | 31 | 1 | ESCI | OPTICS | 2020 | N/A | 0 | Solar cell; Planar solar cell; Emitter electrode; Optical properties; Electrical properties | EFFICIENCY | Korean | 2020 | 2020-02 | 10.3807/kjop.2020.31.1.037 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Conference paper | Empirical evaluation across multiple GPU-accelerated DBMSes | In this paper we conduct an empirical study across modern GPU-accelerated DBMSes with TPC-H workloads. Our rigorous experiments demonstrate that the studied DBMSes appear to utilize GPU resource effectively but do not scale well with growing databases nor have full capability to process some complex analytical queries. Thus, we claim that the GPU DBMSes still need to be further engineered to achieve a better analytical performance. © 2020 ACM. | Chu, Hawon; Kim, Seounghyun; Lee, Joo-Young; Suh, Young-Kyoon | Kyungpook National University, South Korea; Kyungpook National University, South Korea; Kyungpook National University, South Korea; Kyungpook National University, South Korea | 57217226909; 58743827200; 57217231184; 55443739900 | yksuh@knu.ac.kr; | Proceedings of the 16th International Workshop on Data Management on New Hardware, DaMoN 2020 | 0.91 | 2025-06-25 | 7 | empirical evaluation; GPU-accelerated DBMS; scalability; TPC-H | Graphics processing unit; Information management; Analytical performance; Analytical queries; Empirical evaluations; Empirical studies; GPU-accelerated; TPC-H workload; Computer hardware | English | Final | 2020 | 10.1145/3399666.3399907 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | ○ | Article | Empirical Study on the Factors Affecting Individuals' Switching Intention to Augmented/Virtual Reality Content Services Based on Push-Pull-Mooring Theory | New technologies are driving rapid change and innovation in the industrial structure. In this environment, individuals' use of contents also changes remarkably. This study aims to empirically prove why individuals switch from traditional to augmented/virtual reality (AR/VR) content services. We propose a research model and hypotheses based on data collected from existing research and AR/VR users. To explain individuals' switch, we include three constructs for the push effects (low usefulness, functional simplicity, and perceived inefficiency) and three constructs for the pull effects (interactivity, experience ability, and amplified enjoyment) in our proposed model based on the most valid push-pull-mooring. Furthermore, we propose personal innovativeness as a mooring effect on the relationships between push/pull effects and switching intention to AR/VR content services. The data (n = 465) from actual AR/VR users were collected and analyzed using structural equation modeling with AMOS 22.0. Results empirically prove that all push/pull constructs, with the exception of perceived inefficiency, have a significant impact on switching intention. Moreover, a mooring effect-personal innovativeness-strengthens all paths in the research model, except that between perceived inefficiency and switching intention. The findings of this study would provide theoretical and practical implications for understanding individuals' perceptions regarding AR/VR content services. | Kim, Sanghyun; Choi, Moon Jong; Choi, Jae Sung | Kyungpook Natl Univ, Sch Business Adm, Daegu 41566, South Korea; Sunmoon Univ, Dept Comp Sci & Engn, Asan 31460, South Korea | Choi, Moon Jong/O-7896-2015; Lee, Soo/F-4614-2014; Choi, Moon/F-2559-2016 | 57210208391; 56323852100; 55722515100 | ksh@knu.ac.kr;mjchoi0@gmail.com;jschoi@sunmoon.ac.kr; | INFORMATION | INFORMATION | 2078-2489 | 11 | 1 | ESCI | COMPUTER SCIENCE, INFORMATION SYSTEMS | 2020 | N/A | 1.43 | 2025-06-25 | 34 | 40 | augmented reality; virtual reality; push-pull-mooring theory; switching intention | VIRTUAL-REALITY; INFORMATION-TECHNOLOGY; MOBILE COMMERCE; USERS; RESISTANCE; BEHAVIOR; PERSPECTIVE; ACCEPTANCE; PROVIDERS; ADOPTION | Augmented reality; Push-pull-mooring theory; Switching intention; Virtual reality | Augmented reality; Mooring; Switching; Virtual reality; Augmented/virtual reality; Content services; Empirical studies; Industrial structures; Personal innovativeness; Push pull; Structural equation modeling; Switching intentions; Switching theory | English | 2020 | 2020-01 | 10.3390/info11010025 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Proceedings Paper | Encouraging Data Sharing for Safe Autonomous Driving | More information can be gathered when autonomous or self-driving vehicles can connect to and communicate with other vehicles and their environments, improving safe self-driving. However, we need an effective scheme that encourages drivers to share state information voluntarily while driving because the information can be shared only by their permission. Therefore, this paper proposes an incentive scheme to boost information sharing and hence improve autonomous driving safety. | Kim, Keonhyeong; Jung, Im Y. | Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea | 57218211271; 18037522200 | striker112@knu.ac.kr;iyjung@ee.knu.ac.kr; | 2020 IEEE INTERNATIONAL CONFERENCE ON PERVASIVE COMPUTING AND COMMUNICATIONS WORKSHOPS (PERCOM WORKSHOPS) | 2474-2503 | 0 | 2025-06-25 | 0 | 0 | Autonomous vehicle; Information sharing; Incentive scheme; Integrity; Safe driving | Autonomous vehicle; Incentive scheme; Information sharing; Integrity; Safe driving | Autonomous vehicles; Information dissemination; Ubiquitous computing; Autonomous driving; Incentive schemes; Information sharing; Self drivings; State information; Data Sharing | English | 2020 | 2020 | 10.1109/percomworkshops48775.2020.9156209 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | ○ | Article | Endoscopic Treatment of a Twisted Small Bowel Obstruction after Laparoscopic Proximal Gastrectomy with Double Tract Reconstruction | This paper reports a case of a twisted small bowel obstruction in a 74-year-old man that occurred after a double tract reconstruction (DTR) in a laparoscopic proximal gastrectomy (PG) for early gastric cancer. The patient had inadequate oral intake and reflux symptoms for 10 days after discharge. Imaging analysis revealed a narrowed small bowel with twists between the esophagojejunostomy and gastrojejunostomy sites. A fully covered stent was placed in the narrowed small bowel for 2 weeks. The patient was then discharged after stent removal without any dietary problems. The authors' experience shows that twisted small bowel after a DTR in PG can be treated by endoscopy. | Park, Ki Bum; Jeon, Seong Woo | Kyungpook Natl Univ, Dept Surg, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Dept Internal Med, Sch Med, Daegu, South Korea | Jeon, Seongwoo/AAU-4618-2020 | 57220965452; 9733636500 | swjeon@knu.ac.kr; | KOREAN JOURNAL OF GASTROENTEROLOGY | 1598-9992 | 2233-6869 | 75 | 5 | 0 | 2025-06-25 | 0 | 0 | Intestine; small; Gastrectomy; Endoscopy; Stents | Endoscopy; Gastrectomy; Intestine; small; Stents | Aged; Humans; Intestinal Obstruction; Laparoscopy; Male; Neoplasm Staging; Stents; Stomach Neoplasms; adverse event; aged; cancer staging; case report; human; intestine obstruction; laparoscopy; male; stent; stomach tumor | English | 2020 | 2020-05 | 10.4166/kjg.2020.75.5.296 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | Article | Energy security concept in Russia and South Korea | One of the key problems hindering the strengthening of cooperation between South Korea and the Russian Federation not only in the energy sector, but also in other areas, is a negative impact in a kind of historical memory of previous experience of cooperation, or rather failure in implementation of projects or lack of implementation in general. Many projects in potentially promising areas remain on paper. Projects have never been implemented include modernization and commissioning by a joint Russian-North Korean enterprise with the participation of Russian Railways of the railway section from the Khasan station (Russia) to the port Rajin in order to transit from South Korea and gain access states of the Korean Peninsula to the Trans-Siberian Railway. © 2020, Econjournals. All rights reserved. | Dooyum, Uyeh Daniel; Mikhaylov, Alexey; Varyash, Igor | Kyungpook National University, Daegu, South Korea; Financial University under the Government of the Russian Federation, Moscow, Russian Federation; Financial Research Institute of the Ministry of Finance of the Russian Federation, Moscow, Russian Federation | 57192916175; 57214766800; 57210421994 | uyeh.daniel@yahoo.com; | International Journal of Energy Economics and Policy | 2146-4553 | 10 | 4 | 6.97 | 2025-06-25 | 68 | Economic development; Energy cooperation; Energy sources; Resource saving; South Korea energy policy | English | Final | 2020 | 10.32479/ijeep.9116 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Proceedings Paper | Energy-Efficient Task Offloading for Vehicular Edge Computing: Joint Optimization of Offloading and Bit Allocation | With the rapid development of vehicular networks, various applications that require high computation resources have emerged. To efficiently execute these applications, vehicular edge computing (VEC) can be employed. VEC offloads the computation tasks to the VEC node, i.e., the road side unit (RSU), which improves vehicular service and reduces energy consumption of the vehicle. However, communication environment is time-varying due to the movement of the vehicle, so that finding the optimal offloading parameters is still an open problem. Therefore, it is necessary to investigate an optimal offloading strategy for effective energy savings in energy-limited vehicles. In this paper, we consider the changes of communication environment due to various speeds of vehicles, which are not considered in previous studies. Then, we jointly optimize the offloading proportion and uplink/computation/downlink bit allocation of multiple vehicles, for the purpose of minimizing the total energy consumption of the vehicles under the delay constraint. Numerical results demonstrate that the proposed energy-efficient offloading strategy significantly reduces the total energy consumption. | Jang, Youngsu; Na, Jinyeop; Jeong, Seongah; Kang, Joonhyuk | Korea Adv Inst Sci & Technol KAIST, Daejeon, South Korea; Kyungpook Natl Univ, Daegu, South Korea | jangyoung30@kaist.ac.kr;wlsduq37@kaist.ac.kr;seongah@knu.ac.kr;jhkang@ee.kaist.ae.kr; | 2020 IEEE 91ST VEHICULAR TECHNOLOGY CONFERENCE, VTC2020-SPRING | 2577-2465 | 0 | Vehicular edge computing; energy efficiency; task offloading; bit allocation; vehicular networks | NETWORKS | English | 2020 | 2020 | 바로가기 | ||||||||||||||||||||||
| ○ | Conference paper | Energy-Efficient Task Offloading for Vehicular Edge Computing: Joint Optimization of Offloading and Bit Allocation | With the rapid development of vehicular networks, various applications that require high computation resources have emerged. To efficiently execute these applications, vehicular edge computing (VEC) can be employed. VEC offloads the computation tasks to the VEC node, i.e., the road side unit (RSU), which improves vehicular service and reduces energy consumption of the vehicle. However, communication environment is time-varying due to the movement of the vehicle, so that finding the optimal offloading parameters is still an open problem. Therefore, it is necessary to investigate an optimal offloading strategy for effective energy savings in energy-limited vehicles. In this paper, we consider the changes of communication environment due to various speeds of vehicles, which are not considered in previous studies. Then, we jointly optimize the offloading proportion and uplink/computation/downlink bit allocation of multiple vehicles, for the purpose of minimizing the total energy consumption of the vehicles under the delay constraint. Numerical results demonstrate that the proposed energy-efficient offloading strategy significantly reduces the total energy consumption. © 2020 IEEE. | Jang, Youngsu; Na, Jinyeop; Jeong, Seongah; Kang, Joonhyuk | Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea; Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea; Kyungpook National University, Daegu, South Korea; Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea | 57218213536; 57202050105; 55210226900; 7404517651 | IEEE Vehicular Technology Conference | 1550-2252 | 2020-May | 8.41 | 2025-06-25 | 52 | bit allocation; energy efficiency; task offloading; Vehicular edge computing; vehicular networks | Edge computing; Energy efficiency; Energy utilization; Springs (components); Communication environments; Computation resources; Computation tasks; Delay constraints; Joint optimization; Numerical results; Total energy consumption; Vehicular networks; Vehicles | English | Final | 2020 | 10.1109/vtc2020-spring48590.2020.9128785 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | Article | Engaging employees through spiritual leadership | This study explores how spiritual leadership through its effects on individuals’ spiritual well-being enhances employee engagement and augments employees’ organizational commitment. The research conducted a general survey of 207 millennial employees in China, which was tested using partial least squares (PLS) structural equation modeling. The results suggest that employee engagement was significantly influenced by spiritual leadership. In addition, the results demonstrate that organizational commitment was influenced by the sequential intervening effects of employee well-being and work engagement. Both the explained variance (R2) and the effect size of exogenous variables on endogenous variables (ƒ2) showed moderate-to-high effects, supporting the predictive ability of this PLS spiritual leadership model. This study suggests that young workers’ engagement and commitment to their work and organizations are roused when the organization and its leaders satisfy workers’ higher-order humanistic needs. This is accomplished when employees’ socio-psychological resources, such as spiritual well-being, are enhanced through spiritual leadership, which can be augmented by organizational climates that embrace young workers’ “whole” selves. This study expands our understanding of the role that spiritual leadership plays in not only motivating organizational commitment but, more importantly, in engaging employees in their work roles. © 2020 by the authors; licensee Growing Science, Canada. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). | Hunsaker, William D.; Jeong, Woojin | School of Business Administration, Kyungpook National University, 80 Daehak-Ro, Buk-Gu, Daegu, 41566, South Korea; School of Business Administration, Kyungpook National University, South Korea | 55974245100; 57218936013 | hunsaker@knu.ac.kr; | Management Science Letters | 1923-9335 | 10 | 15 | 0.68 | 2025-06-25 | 12 | Employee well-being; Organizational commitment; Smart PLS; Spiritual leadership; Work engagement; Workplace spirituality | English | Final | 2020 | 10.5267/j.msl.2020.6.042 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Conference paper | Enhanced Dynamic Programming for Polygonal Approximation of ECG Signals | Polygonal approximation is suitable for expressing ECG signal with a few vertices, and it is possible to reliably detect the fiducial point by emphasizing the feature values of the fiducial point. However, there are difficulties in real time processing due to the time and space complexity of dynamic programming step. In this paper, based on the features of polygonal approximation in ECG signal, the dynamic programming is possible to realtime processing through the improvement of three-step, and it is confirmed that advanced polygonal approximation is possibility of signal compression. © 2020 IEEE. | Lee, SeungMin; Park, Daejin | Kyungpook National University, School of Electronics Engineering, Daegu, South Korea; Kyungpook National University, School of Electronics Engineering, Daegu, South Korea | 57200005388; 55463943600 | LifeTech 2020 - 2020 IEEE 2nd Global Conference on Life Sciences and Technologies | 1.51 | 2025-06-25 | 9 | dynamic programming; ECG; optimization; polygonal approximation; signal compression | Electrocardiography; ECG signals; Feature values; Fiducial points; Polygonal approximations; Realtime processing; Signal compression; Time and space complexity; Dynamic programming | English | Final | 2020 | 10.1109/lifetech48969.2020.1570620076 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Conference paper | Enhanced prediction for investment portfolio management using multiple kernel-based long short-term memory-network for nickel price prediction | Nickel is a key competitive material source with commodities and economic characteristics, the price volatility of which would influence shareholder's decisions. For this reason, an accurate pattern prediction of nickel prices is a crucial concern for the strategic planning of investors in the nickel trade; however, the conventional neural network models are not effective in terms of predictive performance and suitability. So, Gaussian Processes-Long Short-Term Memory (GP-LSTM) model was suggested to learn the LSTM kernels and predict the nickel prices. However, this kernel function representation was not plenty for a huge amount of data captured from various sources. Also, it cannot completely learn dynamic, composite and structural data attributes. Therefore in this article, a Multiple-Kernel LSTM (MKLSTM) network model is proposed for learning the huge amount of data and predicting the nickel prices efficiently. The core objective of this MKLSTM model is to resolve the difficulty of adding LSTM and multiple kernel functions using data from nickel industries. This model is applied to find the significant attributes for representing suitable data. Also, the proper larger kernels for learning dynamic and structural data attributes are selected by constructing a Directed Acyclic Graph (DAG). By using the selected kernels, the MKLSTM is learned to predict the nickel price and its fluctuations. At last, the experimental results exhibit the performance of MKLSTM using the nickel price database compared to the LSTM and GP-LSTM models. © 2020 IEEE. | Padmavathi, G.; Valliammal, N.; Shaju, Barani; Balasubramaniam, Anandkumar; Paul, Anand | Avinashilingam Institute for Home Science and Higher Education for Women, Department of Computer Science, Coimbatore, India; Avinashilingam Institute for Home Science and Higher Education for Women, Department of Computer Science, Coimbatore, India; Avinashilingam Institute for Home Science and Higher Education for Women, Department of Computer Science, Coimbatore, India; The School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea; The School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea | 8849117600; 36642701800; 57215220675; 57194681130; 56650522400 | 2020 8th International Conference on Orange Technology, ICOT 2020 | 0 | 2025-06-25 | 0 | Directed acyclic graph; Gaussian process; LSTM; Mineral commodity; Multiple kernel learning; Nickel; Price prediction | Brain; Citrus fruits; Composite structures; Costs; Directed graphs; Economics; Electronic trading; Financial markets; Forecasting; Investments; Nickel; Directed acyclic graph (DAG); Economic characteristics; Gaussian Processes; Investment portfolio; Neural network model; Predictive performance; Price volatility; Short term memory; Long short-term memory | English | Final | 2020 | 10.1109/icot51877.2020.9468787 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | ○ | Article | Enhancement of Antibacterial Properties of a Silver Nanowire Film via Electron Beam Irradiation | Infectious diseases and the deaths caused due to contact with germ-contaminated surfaces are severe problems worldwide. Antibacterial materials based on silver nanowires (AgNWs) have a structural advantage when addressing this issue; this is because agglomeration is minimized when nanowires are fabricated into a film. Therefore, employing AgNWs for antimicrobial applications has garnered continuous interest, and increased research for further improvements has been observed. In this study, a AgNW film was fabricated onto glass by spin-coating and then subjected to surface irradiation up to a dose of 1200 kGy, using a low-energy electron beam (e-beam). This "e-beam" irradiation changed the surface morphology and chemical composition; consequently, this improved the performance of the film. The generation of a silver oxide (Ag2O and AgO) outer layer was identified over the AgNWs by X-ray photoelectron spectroscopy (XPS). The antibacterial test corresponding to a contact time of 1 h revealed that the e-beam irradiation increased the antibacterial activity in the log reduction from 1.2 to 1.4 for Staphylococcus aureus and from 1.5 to 3.7 for Escherichia coli. Based on the experimental results and the known antibacterial mechanisms of silver (Ag) nanospecies, we discuss the method by which the antibacterial performance of the AgNW film was improved via the e-beam irradiation. This work provides a simple and swift method to functionally enhance the AgNW antibacterial film via e-beam irradiation. | Kim, Ji-Hyeon; Ma, Junfei; Jo, Sungjin; Lee, Seunghun; Kim, Chang Su | Korea Inst Mat Sci, Adv Nanosurface Dept, Chang Won 51508, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea | ; Lee, Seunghun/GYR-2414-2022 | 57210338058; 57207769424; 7101724027; 57203919907; 57201346735 | cskim1025@kims.re.kr; | ACS APPLIED BIO MATERIALS | 2576-6422 | 3 | 4 | 1.21 | 2025-06-25 | 23 | 25 | silver nanowire; antibacterial film; electron beam irradiation; ozone gas; rapid oxidation | ESCHERICHIA-COLI; OXIDATIVE STRESS; NANOPARTICLES; SHAPE; GENERATION; MECHANISM; MODEL; IONS | antibacterial film; electron beam irradiation; ozone gas; rapid oxidation; silver nanowire | English | 2020 | 2020-04-20 | 10.1021/acsabm.0c00003 | 바로가기 | 바로가기 | 바로가기 |
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