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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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| ○ | ○ | Review | Metaheuristics for pruning convolutional neural networks: A comparative study | Due to their learning and adaptation capabilities, convolutional neural networks (CNNs) have demonstrated potential for machine learning and artificial intelligence applications. However, computationally complex CNN models hinder deployment on resource-constrained devices. To mitigate this, researchers have developed algorithms to reduce the computational requirements of such models. Network pruning, a model compression technique significantly reducing computing costs with negligible accuracy loss, has recently gained prominence. However, manual intervention is often required, posing challenges for users lacking domain knowledge. Automatic pruning using metaheuristic algorithms, a promising approach, has gained recognition in recent years but must address time-consuming model evaluations and searching large solution spaces. Various researchers have developed effective metaheuristic-based pruning approaches to address these limitations. However, a comprehensive comparative study on the effectiveness of different metaheuristics for network pruning is lacking in the literature. Moreover, the impact of objective function formulations and encoding schemes on the performance of metaheuristic-based pruning methods still needs to be explored. To bridge these gaps, this paper presents an extensive experimental study investigating the effect of various metaheuristics on network pruning, with a particular emphasis on objective formulations and encoding schemes. The experimental results provide a detailed analysis of the impact of metaheuristics, objective function formulations, and encoding schemes on network pruning. | Palakonda, Vikas; Tursunboev, Jamshid; Kang, Jae-Mo; Moon, Sunghwan | Kyungpook Natl Univ, Dept Math, Daegu, South Korea; Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu, South Korea | 57193028485; 57410135900; 56024930400; 56063426100 | vikas11475@knu.ac.kr; jamshid@knu.ac.kr; jmkang@knu.ac.kr; sunghwan.moon@knu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 268 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 1.93 | 2025-05-07 | 1 | 1 | Metaheuristics; Convolutional neural networks; Pruning; Computer vision | OPTIMIZATION ALGORITHM; GENETIC ALGORITHM; EVOLUTION | Computer vision; Convolutional neural networks; Metaheuristics; Pruning | Convolution; Encoding (symbols); Comparatives studies; Convolutional neural network; Encoding schemes; Learning and adaptation; Machine-learning; Metaheuristic; Network pruning; Neural network model; Objective functions; Pruning; Convolutional neural networks | English | 2025 | 2025-04-05 | 10.1016/j.eswa.2024.126326 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Mitigating Diffusion-Induced Intragranular Cracking in Single-Crystal LiNi0.5Mn1.5O4 via Extended Solid-Solution Behavior | Single-crystal cathodes have been investigated for their inherent resistance to intergranular cracking due to the absence of grain boundaries. However, these materials exhibit significant intragranular cracking, and the underlying mechanisms remain unclear. In this study, we examined the impact of extended solid-solution reactions on mitigating crack formation in magnesium-doped single-crystal LiNi0.5Mn1.5O4 (Mg-SC-LNMO) cathodes. With Mg acting as a structural pillar, the overall volume change was reduced by nearly 50 %, the two-phase reaction was effectively suppressed, and the Li-ion diffusion coefficient was doubled. Continuum modeling based on experimental observations demonstrates that Mg doping significantly reduces the internal stress induced by lithium diffusion, thereby preserving the mechanical integrity of single-crystal LNMO. This improvement leads to enhanced electrochemical performance and durability. Our study provides new insights into mechanically robust single-crystal cathodes and proposes a design strategy to improve the durability of next-generation Li-ion batteries. | Shin, Hyeonsol; Ndukwe, Agwu; Kim, Taemin; Lee, Ji Hoon; Li, Guanchen; Lee, Hyeon Jeong | Ulsan Natl Inst Sci & Technol UNIST, Dept Mat Sci & Engn, Ulsan 44919, South Korea; Univ Glasgow, James Watt Sch Engn, Glasgow City G12 8QQ, England; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | Lee, Ji Hoon/T-4913-2017; Lee, Ji/AAU-7285-2021 | 59341356200; 59553287400; 59341316500; 55689885200; 56413185100; 56711412600 | jihoonlee@knu.ac.kr; guanchen.li@glasgow.ac.uk; hyeonjeong.lee@unist.ac.kr; | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | ANGEW CHEM INT EDIT | 1521-3773 | 64 | 16 | SCIE | CHEMISTRY, MULTIDISCIPLINARY | 2024 | 16.9 | 6.1 | 0 | 2025-05-07 | 1 | 1 | Lithium-ion batteries; Single-crystal cathodes; Cracking; Phase transitions; Diffusion-induced stress | INTERCALATION-INDUCED STRESS; VOLTAGE SPINEL CATHODE; LI-ION BATTERIES; GENERATION; INITIATION; EVOLUTION; CRITERIA; FRACTURE; 2-PHASE | Cracking; Diffusion-induced stress; Lithium-ion batteries; Phase transitions; Single-crystal cathodes | Crystal whiskers; Doping (additives); Lithium-ion batteries; Magnesium alloys; Manganese alloys; lithium; lithium ion; magnesium; Diffusion-induced stress; Grain-boundaries; Intergranular cracking; Ion batteries; Lithium ions; Single-crystal cathode; Solid solution reaction; Solution behavior; Two-phase reactions; Volume change; article; cathode electrode; controlled study; diffusion; diffusion coefficient; phase transition; solid; Grain boundaries | English | 2025 | 2025-04-11 | 10.1002/anie.202422726 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Numerical study and experimental validation for enhancement of natural convection by EHD conduction pumping in a narrow rectangular cavity filled with a dielectric fluid | The heat transfer enhancement of natural convection in a narrow rectangular cavity by the electrohydrodynamic (EHD) conduction flow of a dielectric fluid was investigated. In order to investigate low Rayleigh situations in which the EHD effects can lead to a significant enhancement of the natural convection heat transfer, a narrow rectangular cavity with an aspect ratio of 1:10 was studied. To boost the EHD effects, multiple pairs of electrodes were placed on the hot and cold vertical walls of the cavity. The narrow cavity geometry is easily found in the dielectric fluid submerged cooling of the ESS, datacenter and AI accelerator. First, the effects of the number of electrode pairs, the temperature difference, and the applied electric voltage on the heat transfer enhancement were investigated numerically. Next, experimental validations were conducted on a cavity with an 8-pair electrode arrangement under applied voltages up to 1.5 kV. For a heat flux of 500 W/m2 (temperature difference of 5.5 K, Rayleigh number congruent to 42,000) and an applied voltage of 1.5 kV (electric Rayleigh number congruent to 8100), it was revealed that the heat transfer performance in a cavity with the 8-pair electrode arrangement could be increased by 51 % compared to pure natural convection. | Kim, Dong Hwi; Oh, Jin Ho; Aodu, Sheriff Abiodun; Mun, Ji Hwan; Park, Il Seouk | Kyungpook Natl Univ, Dept Mech Engn, 80 Daehakro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea | 58556778700; 57200224289; 58040958800; 59943815700; 50262800000 | einstein@knu.ac.kr; | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | INT COMMUN HEAT MASS | 0735-1933 | 1879-0178 | 166 | SCIE | MECHANICS;THERMODYNAMICS | 2024 | 6.4 | 6.1 | N/A | 0 | 0 | Natural convection; Electrohydrodynamic; Conduction pumping; Electrothermal convection | HEAT-TRANSFER ENHANCEMENT; LIQUID; FLOW | Conduction pumping; Electrohydrodynamic; Electrothermal convection; Natural convection | Aspect ratio; Cavity resonators; Electrodes; Heat flux; Heat transfer coefficients; Heat transfer performance; Rayleigh number; Applied voltages; Conduction pumping; Dielectric fluid; Electrode arrangement; Electrohydrodynamic effects; Electrothermal convections; Experimental validations; Heat Transfer enhancement; Rectangular cavity; Temperature differences; Electrohydrodynamics; Natural convection | English | 2025 | 2025-08 | 10.1016/j.icheatmasstransfer.2025.109228 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | Article | Optimization of energy transfer in Tb3+/Sm3+ ions doped silicoborotellurite scintillation glass for X-ray imaging application | The present work focuses on synthesizing 30TeO2: 20B3O3: (20-x)SiO2: 10Na2O: 15BaO: 5Tb2O3: xSm2O3 glasses with varying Sm2O3 concentrations (0.00–2.00 mol%) to study energy transfer between Tb3+ and Sm3+ ions. The glass samples were characterized for density, molar volume, refractive index, absorption spectra, photoluminescence, quantum yield, lifetime, and energy transfer efficiency. Structural analysis by XRD confirmed their amorphous nature. FTIR and Raman studies revealed increased network connectivity and reduced non-bridging oxygen content with Sm2O3 addition. The optical bandgap values ranged from 2.961 to 3.132 eV, with a minimum at 0.5 mol% Sm2O3, while the Urbach energy show no clear trend with increasing Sm2O3 content and fall within the range of 0.233–0.303 eV, suggesting minimal variation in structural disorder. Absorption spectra were evaluated in the wavelength region between 400 and 2500 nm, showing 11 absorption peaks at 944, 1083, 1238, 1383, 1485, and 1543 nm, corresponding to energy transitions of Sm3+ ion from the ground level of 6H5/2 to 6F11/2, 9/2, 7/2, 5/2, 3/2, 6H15/2, and 6F1/2. Additionally, absorption peaks for Tb3+ ion were observed at 484, 1892, and 2200 nm, corresponding to transitions from 7F6 to 5D4 and 7F0,1,2, respectively. Photoluminescence studies showed efficient Tb3+→Sm3+ energy transfer with maximum emission at 0.5 mol% Sm2O3. The glasses emitted visible light under X-ray excitation, confirming their potential for X-ray imaging applications. © 2025 Elsevier Ltd | Wongwan, W.; Yasaka, P.; Boonin, K.; Angnanon, A.; Intachai, N.; Kothan, S.; Kim, H.J.; Kaewkhao, J. | Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, 73000, Thailand; Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, 73000, Thailand; Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, 73000, Thailand; Office of Research Administration, Chiang Mai University, Chiang Mai, 50200, Thailand, Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Physics, Kyungpook National University, Daegu, 41566, South Korea; Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, 73000, Thailand | 57211322480; 55867570800; 35361494500; 56267212800; 57221909427; 6507017165; 58483690400; 23974520300 | pyasaka@hotmail.com; suchart.kothan@cmu.ac.th; | Radiation Physics and Chemistry | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | Energy transfer; Luminescence; Samarium; Terbium; X-ray imaging | Boron compounds; Electromagnetic wave absorption; Glass; Ions; Photoluminescence; Samarium compounds; Tellurium compounds; Terbium compounds; X ray analysis; Absorption peaks; Energy-transfer; Glass samples; Imaging applications; Optimisations; Photoluminescence quantum yields; Quanta energy; SiO 2; Spectra's; X-ray imaging; Energy transfer; Refractive index; Samarium; Terbium | English | Final | 2025 | 10.1016/j.radphyschem.2025.113124 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Physics-aware machine learning for computational fluid dynamics surrogate model to estimate ventilation performance | Despite substantial advances in numerical simulation techniques, constructing a real-time optimization framework with accurate and fast predictions remains challenging. The difficulty arises from significant computational costs required for estimating a response of complex simulation models. Physics-informed machine learning (PIML) models could be an efficient alternative to solving multiple partial differential equations when boundary conditions change. This study aims to introduce an optimization model combined with a PIML algorithm, called physics-aware recurrent convolutional network (PARC), to explore an optimal ventilation efficiency in a confined engine room space during shipbuilding. Sixty computational fluid dynamics simulations were conducted to generate mean age of air (MAA) field data, which were split into training (45 cases), validation (5 cases), and testing (10 cases) datasets. Engine room structures and fan configurations were incorporated into the PARC model through a shape descriptor neural network, while MAA data were used to train the PARC model. The PARC model accurately predicted the temporal evolution of the MAA field, capturing complex ventilation fan information with an average prediction error of 1.5% at the final time step. Furthermore, the trained PARC model was coupled with the Bayesian optimization (BO) to explore the optimal ventilation efficiency. The results indicated that the optimized fan configurations reduced MAA values by up to 4.5%. The PARC-BO integrated framework offers a rapid and effective method for identifying fan configurations to enhance ventilation efficiency. It has potential applications in various industrial settings requiring improved air quality, such as power plants and coal mines. | Kim, Munho; Chau, Ngan-Khanh; Park, Sujin; Nguyen, Phong C. H.; Baek, Stephen S.; Choi, Sanghun | Kyungpook Natl Univ, Sch Mech Engn, Daegu, South Korea; Kyungpook Natl Univ, IEDT, Daegu, South Korea; Univ Iowa, Dept Mech & Engn, Iowa City, IA 52242 USA; Vietnam Natl Univ Ho Chi Minh City, An Giang Univ, Ho Chi Minh, Vietnam; Univ Virginia, Sch Data Sci, Charlottesville, VA 22903 USA; Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22903 USA | Baek, Stephen/GXH-9181-2022; Ngân Khánh, Châu/IUM-5515-2023; Nguyen, Phong/HCG-9403-2022 | 57948529200; 57658928300; 59134341400; 57669847600; 57191200449; 55847101000 | s-choi@knu.ac.kr; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 37 | 2 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2024 | 4.3 | 6.1 | 0 | 2025-05-07 | 0 | 0 | INFORMED NEURAL-NETWORKS; FRAMEWORK | Vortex flow; Bayesian optimization; Computational fluid; Convolutional networks; Engine rooms; Fluid-dynamics; Machine-learning; Mean age of air; Network models; Surrogate modeling; Ventilation efficiency; Mine power plants | English | 2025 | 2025-02 | 10.1063/5.0251641 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Scintillation properties of cerium-doped Tl2LaCl5 Crystal: Investigating the effects of size and cerium concentration | The cerium-doped Tl2LaCl5 (TLC: Ce3+) scintillator has emerged as a highly promising material for radiation detection applications such as positron emission tomography (PET), owing to its high effective atomic number (Zeff) density and excellent scintillation properties. In this study, we grew a large-sized TLC crystal with a diameter of approximately 1 inch; however, the resulting crystal exhibited some cracks. Comprehensive characterization reveals stable light outputs and energy resolutions across different crystal sizes with only a negligible variation observed in large size crystals. In addition, faster decay and rise times are observed with higher cerium concentrations, achieving a significant decay time reduction to 31 ns with 20 % Ce doping, comparable with commercial scintillators such as LaBr3: Ce3+. These findings underscore the potential of TLC: Ce3+ as a scalable and high-performance scintillator, suitable for advanced time-of-flight PET applications, despite the challenge posed by its hygroscopic nature for large-scale manufacturing. | Truc, Lam Tan; Luan, Nguyen Thanh; Khan, Arshad; Rooh, Gul; Jeong, D. W.; Kaewkhao, J.; Kim, H. J.; Kothan, S. | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Kyungpook Natl Univ, Ctr High Energy Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Najran Univ, Fac Arts & Sci, Dept Phys, Najran, Saudi Arabia; Najran Univ, Adv Mat & Nano Res Ctr AMNRC, POB 1988, Najran 11001, Saudi Arabia; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Abdul Wali Khan Univ Mardan, Dept Phys, Mardan 23200, Pakistan | 58303266600; 57210576969; 56017063700; 24401665700; 57221047608; 23974520300; 59051568100; 6507017165 | hongjoo@knu.ac.kr; suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | N/A | 0 | 0 | Crystal growth; Scintillation; Bridgman; PET; TLC; Ce3+ | CE3+ | Bridgman; Ce<sup>3+</sup>; Crystal growth; PET; Scintillation; TLC | Crystal growth from gel; Crystal growth from melt; Crystal growth from vapor; Epitaxial growth; Scintillation counters; Semiconductor doping; cerium; lanthanum chloride; thallium lanthanum chloride; unclassified drug; Bridgman; Ce 3+; Cerium concentration; Cerium-doped; Decay time; Effect of sizes; Emission tomography; Positron emission; Scintillation properties; TLC; absorption; Article; crystal; crystal structure; crystallization; electric current; electric potential; gamma radiation; positron emission tomography; scintillation; stoichiometry; thin layer chromatography; Tl2LaCl5 crystal; X ray diffraction; Positron emission tomography | English | 2025 | 2025-12 | 10.1016/j.radphyschem.2025.113059 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Supramolecular Reconstruction of Self-Assembling Photosensitizers for Enhanced Photocatalytic Hydrogen Evolution | Natural photosynthetic systems require spatiotemporal organization to optimize photosensitized reactions and maintain overall efficiency, involving the hierarchical self-assembly of photosynthetic components and their stabilization through synergistic interactions. However, replicating this level of organization is challenging due to the difficulty in efficiently communicating supramolecular nano-assemblies with nanoparticles or biological architectures, owing to their dynamic instability. Herein, we demonstrate that the supramolecular reconstruction of self-assembled amphiphilic rhodamine B nanospheres (RN) through treatment with metal-phenolic coordination complexes results in the formation of a stable hybrid structure. This reconstructed structure enhances electron transfer efficiency, leading to improved photocatalytic performance. Due to the photoluminescence quenching property of RN and its electronic synergy with tannic acid (T) and zirconium (Z), the supramolecular complexes of hybrid nanospheres (RNTxZy) with Pt nanoparticles or a biological workhorse, Shewanella oneidensis MR-1, showed marked improvement in photocatalytic hydrogen production. The supramolecular hybrid particles with a metal-phenolic coordination layer showed 5.6- and 4.0-fold increases, respectively, in the productivities of hydrogen evolution catalyzed by Pt (Pt/RNTxZy) and MR-1 (M/RNTxZy), respectively. These results highlight the potential for further advancements in the structural and photochemical control of supramolecular nanomaterials for energy harvesting and bio-hybrid systems. | Bu, Seok Hyeong; Cho, Wansu; Ham, Gayoung; Yang, Beomjoo; Jung, Jongwon; Cha, Hyojung; Park, Chiyoung | Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Energy Sci & Engn, 333 Techno Jungang Daero, Daegu 42988, South Korea; Kyungpook Natl Univ, Dept Hydrogen & Renewable Energy, Daegu 41566, South Korea; Chungbuk Natl Univ, Sch Civil Engn, Chungdae Ro 1, Cheongju 28644, Chungbuk, South Korea | ; Park, Chiyoung/D-2649-2011 | 59361229200; 57210434002; 58506766600; 57221775575; 36613366400; 35885242200; 7408416041 | hcha@knu.ac.kr; parkcy@dgist.ac.kr; | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | ANGEW CHEM INT EDIT | 1521-3773 | 64 | 4 | SCIE | CHEMISTRY, MULTIDISCIPLINARY | 2024 | 16.9 | 6.1 | 0 | 2025-05-07 | 1 | 0 | Rhodamine B; Artificial photosynthesis; Shewanella oneidensis MR-1; Hydrogen production; Supramolecular chemistry | SHEWANELLA-ONEIDENSIS MR-1; RESPIRATION; METABOLISM; STRATEGY; H-2 | Artificial photosynthesis; Hydrogen production; Rhodamine B; Shewanella oneidensis MR-1; Supramolecular chemistry | Coordination reactions; Metal nanoparticles; Nanospheres; Photobiological hydrogen production; Rhodamine B; coordination compound; hydrogen; nanomaterial; nanoparticle; nanosphere; photosensitizing agent; platinum nanoparticle; rhodamine B; tannin; zirconium; Artificial photosynthesis; Phenolics; Photocatalytic hydrogen evolution; Photosensitised reactions; Photosensitiser; Photosynthetic systems; Rhodamine-B; Self-assembling; Shewanella oneidensis MR-1; Spatio-temporal organization; article; catalysis; controlled study; electron transport; hydrogen evolution; pharmaceutics; photoluminescence; photosynthesis; Shewanella oneidensis; Artificial photosynthesis | English | 2025 | 2025-01-21 | 10.1002/anie.202416114 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Synchrotron radiation-based X-rays imaging by Dy3+ doped silicoborate glass scintillator: Fabrication, optical, luminescence and scintillation performances | Dysprosium-doped glass scintillators have gained increasing attention due to their promising luminescent properties for applications in radiation detection, photonics, and optoelectronic devices. Glass matrices doped with Dy3+ ions exhibit strong emissions in the visible spectrum, particularly in the yellow region around 575 nm, making them suitable for scintillation application. These glasses are prepared via the melt-quenching technique at 1500 °C. The resulting materials are transparent and exhibit high densities, reaching up to 4.24 g/cm3. Absorption spectra reveal distinct bands that confirm the existence of Dy3+ ions into the glass matrix. Photoluminescence measurements indicate that the glass achieves maximum emission intensity at a Dy2O3 concentration of 1.0 mol%, while X-ray induced luminescence peaks at 1.5 mol%. The measured decay time of the luminescence is observed within the millisecond range. X-ray imaging can be conducted at the Synchrotron Light Research Institute (Beamline 1.2W), providing high-resolution and precise analysis of scintillation performance. Dy3+-doped glass scintillators exhibit excellent optical properties and strong emission intensity, highlighting their potential as innovative materials for next-generation scintillation applications. © 2025 Elsevier Ltd | Intachai, N.; Rachniyom, W.; Wantana, N.; Tariwong, Y.; Khrongchaiyaphum, F.; Sarumaha, C.S.; Pakawanit, P.; Phoovasawat, C.; Kanjanaboos, P.; Rueangsawang, W.; Kim, H.J.; Niamin, H.; Kothan, S.; Kaewkhao, J. | Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand; Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand; Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Faculty of Science and Technology, Muban Chombueng Rajabhat University, Ratchaburi, 70150, Thailand; Synchrotron Research and Applications Division, Synchrotron Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima, 30000, Thailand; Synchrotron Research and Applications Division, Synchrotron Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima, 30000, Thailand; School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom, 73170, Thailand; School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom, 73170, Thailand; Department of Physics, Kyungpook National University, Daegu, 41566, South Korea; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand, Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000, Thailand | 57221909427; 56267368200; 56267058700; 56266485600; 57222659730; 57214718279; 37020415600; 57220074388; 36521096600; 58108734900; 58483690400; 59968741500; 6507017165; 23974520300 | suchart.kothan@cmu.ac.th; watcharin@webmail.npru.ac.th; | Radiation Physics and Chemistry | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | Dysprosium; Glass scintillator; Synchrotron; X-ray imaging | Dysprosium; Dysprosium compounds; Glass; Optical properties; Optoelectronic devices; Quenching; Scintillation; Scintillation counters; Synchrotron radiation; X ray analysis; Doped glass; Emissions intensity; Glass matrices; Glass scintillator; Optical luminescence; Optical performance; Optical scintillation; Scintillation applications; Scintillation performance; X-ray imaging; Synchrotrons | English | Final | 2025 | 10.1016/j.radphyschem.2025.113100 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Synchrotron X-ray imaging material from high quantum yield Sm3+- doped Li2O-Gd2O3-ZrO2-P2O5 glass | The fabrication of phosphate glass samples utilized the melt quenching procedure to synthesize the scintillating glass for synchrotron X-ray imaging application. A comprehensive investigation of the physical, optical, structural, photoluminescence, radioluminescence properties, and X-ray imaging was conducted. The findings exhibited that the density and refractive index clearly increased with higher concentrations of Sm3+ doping. The absorption spectra revealed absorbance in the UV-Vis-NIR regions. The photoluminescence and radioluminescence spectra exhibited the strongest emission intensities at 0.50 mol % of Sm2O3, with a remarkable photoluminescence quantum yield (PLQY) of 85 %. The Sm3+ ion revealed its most intense emission peak at 600 nm, relating to the f-f transition (4G5/2 -> 6H7/2) of the Sm3+ ion. The photoluminescence (PL) emission peak of Gd3+ ions at 311 nm exhibited a decreasing trend with the concurrent increase in Sm3+ emission intensity. This variation suggests the occurrence of energy transfer from Gd3+ to Sm3+ ions. The energy transfer was further confirmed by decay time analysis (lambda Ex = 275 nm and lambda Em = 311 nm), which demonstrated a maximum energy transfer efficiency of 66.08 % at a Sm2O3 concentration of 2.00 mol%. The decay time (lambda Ex = 401 nm and lambda Em = 600 nm)of Sm3+ ion was in the millisecond range, dropping from 3.156 to 0.944 ms when increasing of Sm2O3 concentration. The Inokuti-Hirayama (IH) model (S = 6) confirms dipole-dipole interactions as the primary energy transfer mechanism among Sm3+ ions. Radioluminescence measurements revealed an integral scintillation efficiency of 55.39 % relative to the standard BGO crystal. High-resolution X-ray imaging using synchrotron radiation demonstrated a spatial resolution of 10 lp/mm and a modulation transfer function (MTF) of 0.46 at this frequency. These findings validate the potential of Sm3+- doped phosphate glass as a promising candidate for synchrotron X-ray imaging scintillators. | Payungkulanan, K.; Tungjai, M.; Wantana, N.; Chanthima, N.; Sarumaha, C. S.; Pakawanit, P.; Phoovasawat, C.; Kanjanaboos, P.; Choodam, K.; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Synchrotron Light Res Inst, Synchrotron Res & Applicat Div, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand; Mahidol Univ, Fac Sci, Sch Mat Sci & Innovat, Nakhon Pathom 73170, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | 59172872300; 8518889700; 56267058700; 35361597600; 57214718279; 37020415600; 57220074388; 36521096600; 58555732200; 58483690400; 6507017165; 23974520300 | montree.t@cmu.ac.th; jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | 0 | Phosphate glass; Energy transfer efficiency; Scintillator; Synchrotron X-ray imaging; Sm3+ion | ENERGY-TRANSFER; BORATE GLASSES; SPECTROSCOPIC PROPERTIES; SILICATE-GLASSES; LUMINESCENCE CHARACTERISTICS; OPTICAL-PROPERTIES; PHOSPHATE-GLASSES; IONS; LASER; CE3+ | Energy transfer efficiency; Phosphate glass; Scintillator; Sm<sup>3+</sup> ion; Synchrotron X-ray imaging | Energy efficiency; Energy transfer; Fluorine compounds; Gadolinium compounds; Ions; Lithium compounds; Phosphorus compounds; Photoluminescence; Quenching; Samarium compounds; Scintillation; Scintillation counters; Synchrotron radiation; Synchrotrons; X ray analysis; glass; samarium; Decay time; Emission peaks; Emissions intensity; Energy transfer efficiency; Energy-transfer; Imaging materials; Phosphate glass; Radio-luminescence; Sm3+ ion; Synchrotron X-ray imaging; absorption; Article; crystal structure; density; elemental analysis; imaging; luminescence; modulation transfer function; nanofabrication; photoluminescence; quantum yield; refraction index; scintillation; structure analysis; synchrotron radiation; temperature; X ray; Glass; Quantum yield | English | 2025 | 2025-12 | 10.1016/j.radphyschem.2025.113072 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | SynCSE: syntax graph-based contrastive learning of sentence embeddings | Pre-trained language models (PrLMs) trained via contrastive learning methods achieved state-of-the-art performance on various natural language processing (NLP) tasks. Most PrLMs for sentence embedding focuses on context similarity as an objective function of contrastive learning. However, we found that these PrLMs, including recently released large language models (LLMs) like LLaMA,1 underperform when analyzing syntax information on probing tasks. This limitation becomes particularly noticeable in applications that depend on nuanced sentence understanding, such as the Retrieval Augmented Generation (RAG) framework in LLMs. This paper introduces a new sentence embedding model named SynCSE: Syntax Graph-based Contrastive Learning of Sentence Embeddings. Our approach enables meaningful sentence embeddings of language models through learning the syntactic features. To accomplish this, we train a PrLM with graph neural networks (GNNs) receiving a directed syntax graph. We then detach additional GNN layers from PrLM for inference; which does not require a syntax graph. The proposed model gains improvement on baselines in sentence textual similarity (STS) tasks, transfer tasks, and especially probing tasks. Additionally, we observe that our model has improved alignment and competitive uniformity compared to the baseline. | Kim, Yejin; Oh, Dongsuk; Huang, H. Howie | George Washington Univ, GraphLab, Washington, DC 20052 USA; Kyungpook Natl Univ, Dept English Language & Literature, Trustworthy AI Lab, Daegu, South Korea | 59837636700; 57211283137; 51964011300 | yejinjenny@gwu.edu; inow3555@knu.ac.kr; howie@gwu.edu; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 287 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 0 | 2025-06-11 | 0 | 0 | Dependency parser; Sentence embeddings; Pre-trained language models; Graph encoder; Contrastive learning | NETWORKS | Contrastive learning; Dependency parser; Graph encoder; Pre-trained language models; Sentence embeddings | Context sensitive grammars; Flow graphs; Graph embeddings; Graph neural networks; Natural language processing systems; Network embeddings; Syntactics; Dependency parser; Embeddings; Graph encoder; Graph neural networks; Graph-based; Language model; Learning methods; Pre-trained language model; Sentence embedding; Syntax graphs; Contrastive Learning | English | 2025 | 2025-08-25 | 10.1016/j.eswa.2025.128047 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Thermoluminescence and scintillation properties of Tb-doped lithium borate glass for tissue-equivalent dosimetry | This study investigates the fabrication, characterization, and performance evaluation of Tb-doped Lithium borate glasses with varying compositions. The samples were synthesized by melt-quenching, forming non-crystalline networks with lithium concentrations up to 55 %. Optical characterization revealed emission peaks at 489, 545, 585, and 621 nm under X-ray and UV excitation, enabling precise measurement with photodetectors and spectrometers. The optimization of composition and further characterization of the material are discussed. The calculated Zeff values and thermoluminescence (TL) studies confirmed the suitability of LBO(Tb) glasses for dosimetry applications. These findings highlight the material's potential for real-time tissue equivalent and TLbased dosimetry technologies. | Ton, N. D.; Felix, A. T.; Luan, N. T.; Daniel, D. Joseph; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Kyungpook Natl Univ, Ctr High Energy Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci, Nakhon Pathom 73000, Thailand | 57966935300; 59888605100; 57210576969; 55235066800; 59051568100; 6507017165; 23974520300 | hongjoo@knu.ac.kr; suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | 0 | Tissue-equivalent; Thermoluminescence; Real-time; Dosimetry | CURVE DECONVOLUTION; CONDUCTIVITY; LUMINESCENCE; CENTERS; SYSTEM; DEFECT | Dosimetry; Real-time; Thermoluminescence; Tissue-equivalent | Glass; Lithium compounds; Terbium compounds; Tissue; Tissue engineering; glass; lithium; terbium; terbium doped lithium borate glass; unclassified drug; Crystalline networks; Lithium borate glass; Melt-quenching; Performances evaluation; Real- time; Scintillation properties; Synthesised; Tb-doped; Thermoluminescence properties; Tissue-equivalent; Article; concentration (parameter); density; dosimetry; heating; human; radiation exposure; scintillation; temperature; thermoluminescence; tissue equivalent dosimetry; ultraviolet visible spectroscopy; X ray; X ray diffraction; Dosimetry; Thermoluminescence | English | 2025 | 2025-12 | 10.1016/j.radphyschem.2025.113051 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | TMF-GNN: Temporal matrix factorization-based graph neural network for multivariate time series forecasting with missing values | Missing data in multivariate time series (MTS) is a very common issue, often caused by unreliable sensors and data storage or transmission problems. Particularly, such missing data can cause some errors and biases in the MTS forecasting tasks of real-world applications, implying that proper handling of the missing data is essential. Therefore, in this study, we propose anew method for MTS forecasting with missing values, called a temporal matrix factorization-based graph neural network (TMF-GNN), to improve predictive performance outcomes. TMF-GNN basically uses the concept of TMF, which reconstructs partially observed MTS data. We newly present a data-adaptive regularization method for TMF based on graph-based and sequential deep learning algorithms to capture both the variable-wise and time-wise information of MTS data affected by missingness. We demonstrate the feasibility of the proposed method by conducting various experiments on three MTS datasets and show how it outperforms baseline methods. We believe that our study will have an impact on several MTS-related tasks and that it can be a useful alternative for handling missing values in MTS data. | Kim, Suhyeon; Lee, Taek-Ho; Lee, Junghye | Kyungpook Natl Univ, Grad Sch Data Sci, Daegu 41566, South Korea; Kyungpook Natl Univ, Data Driven Intelligent Mobil ITRC Ctr, Daegu 41566, South Korea; Seoul Natl Univ Sci & Technol SeoulTech, Dept Ind Engn, Seoul 01811, South Korea; Seoul Natl Univ, Technol Management Econ & Policy Program, Seoul 08826, South Korea; Seoul Natl Univ, Inst Engn Res, Seoul 08826, South Korea; Seoul Natl Univ, Grad Sch Engn Practice, Seoul 08826, South Korea | Lee, Junghye/KUF-0668-2024 | 57216511251; 57194686484; 56055191300 | suhyeonkim@knu.ac.kr; taekho.lee@seoultech.ac.kr; junghye@snu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 275 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 0 | 2025-05-07 | 0 | 0 | Time series forecasting; Missing value; Graph neural network | IMPUTATION | Graph neural network; Missing value; Time series forecasting | Graph neural networks; Matrix factorization; Data storage; Data-transmission; Graph neural networks; Matrix factorizations; Missing data; Missing values; Multivariate time series; Time series forecasting; Time-series data; Transmission problem; Spatio-temporal data | English | 2025 | 2025-05-25 | 10.1016/j.eswa.2025.127001 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | White light emission from Dy3+ion doped boro-tellurite glass potential for optical and thermoluminescence material applications | This research focuses on the synthesis and characterization of (35-x) TeO2: 30B2O3: 20BaO: 10ZnO: 5La2O3: xDy2O3 (x is 0.0, 0.1, 0.5, 1.0, and 1.5 mol%) glasses. X-ray diffraction analysis confirmed that the glass was amorphous. Investigation of vibration properties of various glass networks using Fourier transform infrared spectroscopy. In addition, the UV-vis-NIR spectrometer recorded the absorption spectra of a number of peak values. The glass samples exhibited strong photoluminescence (PL) spectra with two prominent emission bands at 482 nm and 576 nm, corresponding to the characteristic transitions of Dy3+ ion. The highest luminescence efficiency of Dy3+ ion was observed at a concentration of 1 mol%. In the prepared glasses, the PL obtained from different concentrations of Dy3+ ion is almost close to the white light region, as shown in the CIE 1931 chromaticity diagram. Furthermore, the thermoluminescence (TL) parameters were calculated, including the maximum temperature (Tm), high-temperature half-width (delta), low-temperature half-width (tau), total half-intensity width (omega), activation energy (E), and frequency factor (S). The developed glasses show promise for use in thermoluminescence dosimetry (TLD) and white light-emitting diodes (WLEDs) based on the results. | Khondara, S.; Yasaka, P.; Boonin, K.; Intachai, N.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Intachai, Nuttawadee/HOH-1735-2023 | 59225555300; 55867570800; 35361494500; 57221909427; 6507017165; 58483690400; 23974520300 | pyasaka@hotmail.com; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | 2025-06-11 | 0 | 2 | Glass; Dysprosium oxide; Photoluminescence; Thermoluminescence | LUMINESCENCE; LASER; B2O3; EU3+ | Dysprosium oxide; Glass; Photoluminescence; Thermoluminescence | Atomic emission spectroscopy; Fluorescence; Fourier transform infrared spectroscopy; Glass; Luminescence of gases; Luminescence of liquids and solutions; Luminescence of solids; Phosphorescence; Thermoluminescence; Triboluminescence; X ray powder diffraction; lanthanide; lead; Diffraction analysis; Dysprosium oxide; Halfwidths; Material application; Optical-; Research focus; Synthesis and characterizations; Tellurite glass; White light emission; X- ray diffractions; Article; dosimetry; high temperature; infrared spectroscopy; low temperature; mass fragmentography; microscopy; Monte Carlo method; nonhuman; radiation exposure; refraction index; temperature; thermogravimetry; thermoluminescence; vibration; white light; X ray diffraction; Photoluminescence | English | 2025 | 2025-12 | 10.1016/j.radphyschem.2025.113007 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | White/orange tunable light emitting and energy transfer of Dy3+/Sm3+dual-doped silicophosphate oxyfluoride glasses for photonic devices | Silicophosphate oxyfluoride glasses by co-doping of Dy2O3 (Dy3+:0.5 mol%) with Sm2O3 (Sm3+:0.0, 0.1, 0.5, 1.0, 2.0, and 4.0 mol%) have been prepared using a melt and sudden quenching processes. The existence of Dy3+ (6H15/2) and Sm3+(6H5/2) peaks was studied via optical absorption spectra in the 280-1800 nm region. The emission spectra of the glasses were excited under two excitation wavelengths (350 and 401 nm). This resulted in a decrease in the emission intensities (4F9/2 -> 6H15/2, 13/2, 11/2, 9/2) of (Dy3+) and an increase in the emission intensities 4G5/2 -> 6H5/2, 7/2, 9/2, 11/2 of Sm3+. The energy transfer (ET) from Dy3+ to Sm3+ in current glasses results in a reduction of lifetime (Dy3+:4F9/2) due to dipole-dipole interaction. The ET efficiencies of current glasses were found to be 0.75-55.14 % with an increase of Sm3+ amounts. The radio luminescence (RL) spectra of current glasses were also studied under X-ray by applying a voltage of 50 kV and a current of 30 mA. This result showed the maximum scintillation efficiency of 16.85 % in the present 0.5Dy1.0Sm glass relative to the Bi4Ge3O12 (BGO) crystal. The emission color of current glasses has been confirmed by CIE1931 chromaticity diagram, which has shown on natural white/yellow and orange region with 350 and 401 nm, respectively. | Meejitpaisan, P.; Doddoji, Ramachari; Kothan, S.; Minh, P. H.; Kim, H. J.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam; Duy Tan Univ, Fac Nat Sci, Da Nang 550000, Vietnam; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Vietnam Acad Sci & Technol, Inst Phys, Hanoi 100000, Vietnam; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | 56006076500; 57214510277; 6507017165; 23973373800; 58483690400; 23974520300 | doddojiramachari@duytan.edu.vn; suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 237 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | 0 | Dual-doped glass; Dy3+/Sm3+; Energy transfer; Silicophosphate oxyfluoride glass; Tunable light | SPECTROSCOPIC PROPERTIES; PHOSPHATE-GLASSES; LASER; LUMINESCENCE | Dual-doped glass; Dy<sup>3+</sup>/Sm<sup>3+</sup>; Energy transfer; Silicophosphate oxyfluoride glass; Tunable light | Dysprosium compounds; Emission spectroscopy; Germanium compounds; Glass; Light absorption; Light emission; Photonic devices; Samarium compounds; chemical compound; dual doped silicophosphate oxyfluoride glass; dysprosium oxide; glass; samarium; unclassified drug; Doped glass; Dual doped; Dual-doped glass; Dy3+/sm3+; Energy-transfer; Oxyfluoride glass; Silicophosphate oxyfluoride glass; Silicophosphates; Tunable light; Tunables; absorption spectroscopy; Article; correlated color temperature; energy transfer; luminescence; nonhuman; nuclear magnetic resonance spectroscopy; orange tunable light emitting; physical phenomena; radio luminescence; spectrofluorometry; temperature; ultraviolet visible spectroscopy; white light; white tunable light emitting; X ray; Energy transfer | English | 2025 | 2025-12 | 10.1016/j.radphyschem.2025.113067 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | A Novel Sampled-Data Control for Reachable Set Estimation of Nonlinear Multiagent Systems | This article examines the reachable set estimation problem for leaderless multiagent systems (MASs) with Lipschitz nonlinear dynamics and bounded input disturbances via novel sampled-data control. First, a new time-dependent sampled-data control technique is proposed for nonlinear MASs. In contrast to the conventional approach, the developed control signal includes a sampling-time variable that varies over time within each sampling period. Next, the primary Lyapunov term consists of aperiodic sampling in various degrees, hence becoming discontinuous. Furthermore, sufficient reachable set conditions are derived as linear matrix inequalities by making use of Wirtinger's inequality-based time-dependent discontinuous Lyapunov-Krasovskii functional and two-sided looped functional. In the end, two illustrated numerical examples validate theoretical outcomes exhibiting reduced conservatism by expanding the sampling period and minimizing the number of decision variables. | Janani, V. M.; Visakamoorthi, B.; Muthukumar, P.; Hur, Sung-ho | Gandhigram Rural Inst, Dept Math, Gandhigram 624302, India; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | Balasubramani, Visakamoorthi/GPT-2286-2022; Moorthy, Janani/MHQ-6878-2025; Palanisamy, Muthukumar/M-8127-2018; P, Muthukumar/M-8127-2018; HUR, Sung/ABA-5497-2020 | 59035030000; 57219385877; 24475116900; 36455858700 | jananivmgri@gmail.com; visaka8596@knu.ac.kr; pmuthukumargri@gmail.com; shur@knu.ac.kr; | IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS | IEEE T SYST MAN CY-S | 2168-2216 | 2168-2232 | 55 | 1 | SCIE | AUTOMATION & CONTROL SYSTEMS;COMPUTER SCIENCE, CYBERNETICS | 2024 | 8.7 | 6.2 | 0 | 2025-05-07 | 0 | 1 | Aperiodic sampling; Lyapunov-Krasovskii functional (LKF); multiagent systems (MASs); reachable set estimation (RSE); sampled-data control | LEADERLESS CONSENSUS; TOPOLOGIES | Aperiodic sampling; Lyapunov-Krasovskii functional (LKF); multiagent systems (MASs); reachable set estimation (RSE); sampled-data control | Direct digital control systems; Sampled data control systems; Signal sampling; Aperiodic sampling; Krasovskii functional; Krasovskii functional (LKF); Lyapunova; Multi agent; Multiagent system; Nonlinear multi-agent systems; Reachable set; Reachable set estimation; Sampled-data control; Nonlinear analysis | English | 2025 | 2025-01 | 10.1109/tsmc.2024.3476370 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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