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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 | Development of new calibrating material for luminescence spectrometer from Eu3+doped aluminum sodium calcium borate glass | The calibration standards are formulated to correct emissions spectra and systematically monitor sensitivity fluctuations in luminescence spectrometers. This study outlines the development of luminescence calibration standards utilizing glass doped with lanthanide ions, specifically focusing on Eu3+ ions chosen for their robust emission properties. Glasses composed of aluminum calcium sodium borate doped with Eu3+ ions were prepared using the melt-quenching technique, with varying compositions of 20Al2O3-20CaO-20Na2O-(40-x) B2O3-xEu2O3 (where x = 0.0, 0.5, 1.0, 3.0, 5.0, and 7.0 mol%). The intense red emission around 615 nm through the 5D0 to 7F2 transition of Eu3+ was detected. To ensure measurement reliability, this study conducted measurements under four different stimulations: ultraviolet-visible light (photoluminescence), X-ray (radioluminescence), proton (protonluminescence), and electron (cathodoluminescence), verifying consistent peak positions. The findings from this study validate the potential of aluminum sodium calcium borate glasses doped with Eu3+, particularly those containing 3.0 mol% of Eu2O3, as effective calibration materials for luminescence spectrometers. This highlights their capability for accurate and consistent calibration, emphasizing their importance in maintaining measurement precision in the luminescence spectrometer. | Jarucha, N.; Ruangtaweep, Y.; Meejitpaisan, P.; Kim, H. J.; Boontueng, P.; Kobdaj, C.; Ritjoho, N.; Sanghangthum, T.; Valiev, D.; Stepanov, S.; Intachai, N.; Kothan, S.; 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; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Ubon Ratchathani Univ UBU, Fac Sci, Dept Phys, Warin,Chamrap, Ubon Ratchathani 34190, Thailand; Suranaree Univ Technol SUT, Sch Phys, Nakhon Ratchasima 30000, Thailand; Chulalongkorn Univ CU, Fac Med, Dept Radiol, Thaila Div Radiat Oncol, Bangkok 10330, Thailand; Natl Res Tomsk Polytech Univ, Lenin Ave 30, Tomsk 634050, Russia; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand | Kobdaj, Chinorat/AAR-6293-2020; Meejitpaisan, Piyachat/HSG-3266-2023; Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023; Stepanov, Stepan/H-3317-2014; Valiev, Damir/E-4822-2018; Sanghangthum, Taweap/HSI-2073-2023 | 57219215647; 37108588700; 56006076500; 58483690400; 59182608000; 57194221209; 57204908345; 15725955100; 57219779206; 57200588126; 57221909427; 6507017165; 23974520300 | Djone@webmail.npru.ac.th;suchart.kothan@cmu.ac.th;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 224 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0 | 2025-05-07 | 0 | 1 | Borate glass; Calibrating; Europium; Luminescence | ENERGY-TRANSFER; EU3+; FLUORESCENCE; BEHAVIOR; LI+ | Borate glass; Calibrating; Europium; Luminescence | Aluminum compounds; Calcium compounds; Calibration; Europium; Europium compounds; Glass; Ions; Sodium borate; Spectrometers; aluminum; boric acid; calcium; carbon; europium; glass; lanthanide; sodium; Borate glass; Calibrating; Calibration standard; Emission properties; Emission spectrums; Lanthanide ion; Luminescence spectrometers; Measurement reliabilities; Melt quenching techniques; Red emissions; Article; calibration; chemical structure; cost effectiveness analysis; development; dispersity; electric potential; encapsulation; food industry; Fourier transform; infrared spectroscopy; local field potential; luminescence; measurement precision; mutagenesis; nonhuman; pH; photoluminescence; photoreceptor; plasmid; radiation dose; Raman spectrometry; refraction index; reliability; spectral sensitivity; spectroscopy; X ray diffraction; Luminescence | English | 2024 | 2024-11 | 10.1016/j.radphyschem.2024.112052 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of Ba co-doping on the X-ray induced afterglow of CsI(Na) crystal | Sodium-doped cesium iodide (CsI(Na)) is one of the highly effective scintillators that has been widely studied and used for several decades due to good performance. In this work, the effect of Ba co-doping on the afterglow in CsI (Na) crystal was investigated to evaluate its feasibility for applications in Computed Tomography (CT) imaging and radiation detection. We used a two-zone Bridgman furnace to grow the CsI(Na) single crystals co-doped with various concentrations of Ba. The single-doped and Ba co-doped CsI(Na) crystals demonstrate the emission at around 400 nm associated with Na-related luminescence. The scintillation performance of the grown single crystal was studied by irradiating the samples under a 137Cs gamma source. The single-doped and Ba co-doped CsI(Na) crystals exhibit a scintillation light yield ranging from 33,000 to 44,000 ph/MeV. The reduction of afterglow observed in Ba co-doped CsI(Na) crystals is associated with electron scavenging from the traps. To summarize, the Ba co-doped CsI(Na) crystal is a promising candidate for X-ray and CT imaging. | Tariwong, Y.; Kim, H. J.; Quang, Nguyen Duy; Luan, Nguyen Thanh; Daniel, D. Joseph; Truc, Lam Tan; Chaiphaksa, W.; Kaewkhao, J.; Intachai, N.; Kothan, S. | Kyungpook Natl Univ, Dept Phys Educ, Daegu 41566, South Korea; 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 | Chaiphaksa, Wuttichai/KGM-7876-2024; Intachai, Nuttawadee/HOH-1735-2023; Kim, Hong Joo/AAE-1178-2022 | 56266485600; 59051568100; 57223004024; 57210576969; 35319662800; 58303266600; 56267524400; 23974520300; 57221909427; 6507017165 | hongjoo@knu.ac.kr;jakrapong@webmail.npru.ac.th;suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 223 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0.52 | 2025-05-07 | 2 | 1 | Afterglow; Bridgman method; Cesium iodide; Scintillation; Thermoluminescence | CSI-TL CRYSTALS; SCINTILLATION PROPERTIES; ENERGY RESOLUTION; SUPPRESSION; EU2+ | Afterglow; Bridgman method; Cesium iodide; Scintillation; Thermoluminescence | Cesium iodide; Doping (additives); Scintillation; Single crystals; Sodium compounds; Thermoluminescence; barium; iodide; sodium doped cesium iodide; unclassified drug; Afterglow; Bridgman furnace; Co-doped; Co-doping; Gamma source; Imaging detections; Performance; Radiation detection; Scintillation performance; Tomography imaging; Article; co doping; computer assisted tomography; controlled study; crystal; crystal structure; doping; gamma radiation; image analysis; luminescence; nonhuman; outcome variable; radiation; radioluminescence; scintillation; sodium doped cesium iodide crystal; X ray; X ray diffraction; Crystal growth from melt | English | 2024 | 2024-10 | 10.1016/j.radphyschem.2024.111878 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | ESC-ZSAR: Expanded Semantics from Categories with Cross-Attention for Zero-Shot Action Recognition | Zero-shot action recognition endeavors to identify novel action categories not encountered during training by aligning a joint semantic space. However, despite advancements, zero-shot action recognition still needs to grapple with the inadequate semantic representation of seen data, hindering the transfer of diverse action videos. This study introduces a novel framework combining video, optical flow, and expanded label description via a cross-attention mechanism. This integration facilitates the capture of low and high-level motion dynamics, effectively bridging the domain gap between the video and text modalities. The proposed approach of generating expanded label descriptions efficiently enhances semantic information, thus ameliorating zero- shot transferability and providing a comprehensive grasp of semantics and motion. The temporal shuffle and alignment module is designed to enhance the generalization ability of image sequences by capturing discriminative high-level motions through frame sorting. The efficacy of the proposed method is validated through extensive experiments on three benchmark datasets, namely Kinetic-600, UCF-101, and HMDB-51. Notably, our model achieves state-of-the-art results in the zero-shot action recognition task. | Lee, Jeong-Cheol; Lee, Dong-Gyu | Kyungpook Natl Univ, Dept Artificial Intelligence, Daehak Ro, Daegu 41566, South Korea | 58121964800; 57169003900 | jclee2716@knu.ac.kr;dglee@knu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 255 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 0.33 | 2025-05-07 | 1 | 1 | Zero-shot action recognition; Cross-attention; Semantics expansion | REPRESENTATIONS | Cross-attention; Semantics expansion; Zero-shot action recognition | Image enhancement; Zero-shot learning; Action recognition; Attention mechanisms; Cross-attention; High-level motion; Low-level motions; Motion dynamics; Semantic expansion; Semantic representation; Semantic Space; Zero-shot action recognition; Semantics | English | 2024 | 2024-12-01 | 10.1016/j.eswa.2024.124786 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Exploring bioconvection dynamics within an inclined porous annulus: Integration of CFD and AI on the synergistic effects of hybrid nanofluids, oxytactic microorganisms, and magnetic field | The current research integrates artificial intelligence (AI) with computational fluid dynamics (CFD) to explore the magneto-bioconvective phenomenon of hybrid nanofluid within an inclined porous annulus containing oxytactic microorganisms. Initially, we analyze bioconvection dynamics and energy distribution by simulating the nonlinear governing equations. Owing to the involvement of multiple variable parameters, simulation technique demands significant resources and time to determine the optimal parametric values. To surmount this challenge, CFD-ANN-GA method is proposed to identify the optimum parameter values. Leveraging 212 CFD dataset, we developed an artificial neural network (ANN) model, tested with new dataset, and achieved an accuracy of 99.03 % and 94.82 % respectively, for average Nusselt and Sherwood numbers. This highly accurate ANN model's predictions unveiled significant insights that remained elusive from the CFD data. The CFD data suggested that the parameter set: Ra =106, Rb =10, Ha = 0, Da = 10- 1, Phi = 45 degrees , Pe =1, Le =1, experience maximum heat dissipation. However, the genetic algorithm (GA) recommended a different parameter set: Ra = 106, Rb = 10, Ha = 0, Da = 10- 1.5644, Phi = 40.67 degrees , Pe = 0.100388, Le = 1, providing maximum thermal transport. Subsequently, the GA recommended parameter set has been tested through simulation technique and found to exhibit comparatively greater thermal transport. Furthermore, we identified the hierarchy of parameters influence on heat and oxygen mass transport within the enclosure by conducting sensitivity analysis. | Swamy, H. A. Kumara; Ryu, Daesick; Kim, Hyunju; Sankar, M.; Do, Younghae | Kyungpook Natl Univ, Nonlinear Dynam & Math Applicat Ctr, Dept Math, Daegu 41566, South Korea; Korea Inst Energy Technol KENTECH, Dept Energy Engn, Naju 58217, South Korea; Univ Technol & Appl Sci, Coll Comp & Informat Sci, Ibri 516, Oman | Do, Younghae/G-3522-2011; Ryu, Daesick/HSG-9934-2023; Mani, Sankar/AAT-5256-2021; Swamy, H.A. Kumara/AAT-5304-2021 | 57223027638; 57462494400; 55883142200; 6701530391; 7103101109 | yhdo@knu.ac.kr; | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | INT COMMUN HEAT MASS | 0735-1933 | 1879-0178 | 159 | SCIE | MECHANICS;THERMODYNAMICS | 2024 | 6.4 | 6.1 | 1.15 | 2025-05-07 | 4 | 4 | Oxytactic microorganisms; Porous material; Hybrid nanofluid; Artificial intelligence; Genetic algorithm; Sensitivity analysis | MAGNETOHYDRODYNAMIC NATURAL-CONVECTION; GYROTACTIC MICROORGANISMS; THERMO-BIOCONVECTION; SUSPENSIONS; CAVITY; FLOW | Artificial intelligence; Genetic algorithm; Hybrid nanofluid; Oxytactic microorganisms; Porous material; Sensitivity analysis | Convergence of numerical methods; Vortex flow; Artificial neural network modeling; Bioconvection; Computational fluid; Dynamic data; Fluid-dynamics; Hybrid nanofluid; Oxytactic microorganisms; Parameter set; Sensitivity analyzes; Simulation technique; Sensitivity analysis | English | 2024 | 2024-12 | 10.1016/j.icheatmasstransfer.2024.107999 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Exploring effective thermal energy exchange potential of delta-nabla-trapezoidal channels in heat exchangers | The performance and thermal efficiency of a heat exchanger are critical in various industrial applications, necessitating the continuous improvement of the thermal management system. In the present study, a novel heat exchanger which comprises of delta-nabla-trapezoidal (DNT) configurations of flow channels, is investigated and compared with commercially available concentric tube heat exchangers (CTHEs), to address the limitations of conventional design in terms of thermal efficiency and pressure drop. The current study is the first of its kind to explore the thermal energy exchange potential of the delta-nabla-trapezoidal heat exchangers (DNTHEs) with numerical simulations and experimentally validated them using an in-house designed experimental setup. The proposed heat exchanger comprises of triangular and trapezoidal cross-section channels that are arranged such that the hot fluid flows through the delta and nabla channels while cold fluid flows through the trapezoidal channels. The energy exchange between the two fluid streams is experimentally measured, and Nusselt number correlations are developed for various inlet mass flow rates. The numerical simulations are then used to predict local fluid and heat flow patterns with velocity and temperature profiles. Experimental results indicate a reasonable energy balance, revealing a maximum loss of 15% across all sets of experiments. Furthermore, the cold-side temperature increased to its maximum of 22 K, while the hot-side temperature decreased by 25 K across all tested conditions. The simulation results demonstrated an enhanced energy balance, characterized by a maximum loss of 10%. The thermal efficiency of the proposed DNTHE was experimentally assessed and compared to that of a CTHE in parallel and counter flow configurations. Under similar operating conditions, the maximum heat flux in DNTHE and CTHE was 18.35 and 14.26 kW/m2, respectively. Furthermore, the largest difference in temperature drops and gains between DNTHE and CTHE are 15 and 9 K, respectively. These findings confirmed the efficient thermal energy exchange potential of DNTHE in comparison to CTHE, establishing a new industrial standard for heat exchangers. | Javaid, Hamza; Cheema, Taqi Ahmad; Rehman, M. Mohib Ur; Abbas, Ahmad; Park, Cheol Woo | GIK Inst Engn Sci & Technol, Fac Mech Engn, Topi 23460, Kpk, Pakistan; Aalto Univ, Sch Engn, Dept Mech Engn, FI-00076 Espoo, Finland; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea | Rehman, Mohib/MFI-0248-2025; Abbas, Ahmad/GSM-9364-2022 | 58830584900; 36522492600; 57193309749; 57193502684; 7408416474 | tacheema@giki.edu.pk;chwoopark@knu.ac.kr; | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | INT COMMUN HEAT MASS | 0735-1933 | 1879-0178 | 158 | SCIE | MECHANICS;THERMODYNAMICS | 2024 | 6.4 | 6.1 | 0.38 | 2025-05-07 | 1 | 1 | Delta-nabla-trapezoidal (DNT) heat exchanger; Energy exchange; Concentric tube heat exchanger; Heat transfer enhancement; Nusselt number; Heat exchange surfaces | PRESSURE-DROP CHARACTERISTICS; THERMOHYDRAULIC PERFORMANCE; ENHANCEMENT | Concentric tube heat exchanger; Delta-nabla-trapezoidal (DNT) heat exchanger; Energy exchange; Heat exchange surfaces; Heat transfer enhancement; Nusselt number | Drops; Energy balance; Heat flux; Heat storage; Numerical models; Nusselt number; Parallel flow; Pressure drop; Temperature control; Thermal energy; Concentric tube; Concentric tube heat exchanger; Delta-nablum-trapezoidal heat exchanger; Energy exchanges; Exchange potentials; Heat exchange surfaces; Heat Transfer enhancement; Thermal-efficiency; Trapezoidal channels; Tube heat exchangers; Heat exchangers | English | 2024 | 2024-11 | 10.1016/j.icheatmasstransfer.2024.107892 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Flow interference investigation of multi-square prisms under fluid-structure interaction. II. Flow field phenomenology of side-by-side square prisms | The current research primarily focuses on interference effects in rigid structures, with the omission of the feedback impact of structural vibration on the flow field preventing the disclosure of the intrinsic mechanisms behind interference effects. Therefore, this study analyzed the aerodynamic characteristics and flow field phenomena of the finite-length side-by-side square prisms under vibration through the large eddy simulation, unveiling the flow field morphology and disturbance mechanisms. The results show that the three-dimensional effect of the side-by-side square prisms effectively suppresses the deflection of the gap flow. Structural vibration increases the curvature of the shear layers on both sides of the interfering structure, weakens its end effect, and destroys the integrity of the axial vortex in the wake region. With the increase in the spacing between the side-by-side square prisms, the "narrow pipe effect" is weakened, the flow acceleration is relatively slowed down, and interference of the vortices in the wake region is weakened. In addition, some typical flow field phenomena are observed, such as gap flow instability, coupled vortex street, interaction of wakes, and different flow regimes. This study is of great significance for understanding mechanisms of the flow interference around the finite-length side-by-side square prisms under fluid-structure interaction. | Chen, Zengshun; Guan, Tengda; Zhang, Likai; Li, Sunwei; Kim, Bubryur; Xu, Yemeng; Fu, Yunfei; Li, Cruz Y. | Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China; Tsinghua Univ, Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China; Kyungpook Natl Univ, Dept Robot & Smart Syst Engn, 80 Daehak ro, Daegu 41566, South Korea; Hong Kong Polytech Univ, Dept Bldg Environm & Energy Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China | ; Li, Cruz/AAB-7607-2022 | 55866149500; 59220198000; 57217526147; 55523768500; 57198355299; 57211392073; 57288502300; 57217102878 | zengshunchen@cqu.edu.cn;202216131298t@stu.cqu.edu.cn;zhanglikai@cqu.edu.cn;li.sunwei@sz.tsinghua.edu.cn;brkim@knu.ac.kr;xu.ym@cqu.edu.cn;yfuar@connect.ust.hk;yliht@connect.ust.hk; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 36 | 7 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2024 | 4.3 | 6.1 | 0.37 | 2025-05-07 | 1 | 1 | INFLOW TURBULENCE GENERATOR; LARGE-EDDY SIMULATION; ATMOSPHERIC BOUNDARY-LAYER; CIRCULAR-CYLINDERS; QUALITY | Flow fields; Large eddy simulation; Prisms; Rigid structures; Shear flow; Structural dynamics; Vibration analysis; Vortex flow; Wakes; Finite length; Flow interference; Flow-field phenomenon; Fluid-structure interaction; Gap flows; Interference effects; Side by sides; Square prism; Structural vibrations; Wake region; Fluid structure interaction | English | 2024 | 2024-07 | 10.1063/5.0210021 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | GCN-assisted attention-guided UNet for automated retinal OCT segmentation | With the increase in the aging population of many countries, the prevalence of neovascular age-related macular degeneration (nAMD) is expected to increase. Morphological parameters such as intraretinal fluid (IRF), subretinal fluid (SRF), subretinal hyperreflective material (SHRM), and pigment epithelium detachment (PED) of spectral-domain optical coherence tomography (SD-OCT) images are vital markers for proper treatment of nAMD, especially to get the information of treatment response to determine the proper treatment interval and switching of anti-vascular endothelial growth factor (VEGF) agents. For the precise evaluation of the change in nAMD lesions and patient-specific treatment, quantitative evaluation of the lesions in the OCT volume scans is necessary. However, manual segmentation requires many resources, and the number of studies of automatic segmentation is increasing rapidly. Improving automated segmentation performance in SD-OCT visual results requires long-range contextual inference of spatial information between retinal lesions and layers. This paper proposes a GAGUNet (graph convolution network (GCN)-assisted attention-guided UNet) model with a novel global reasoning module considering these points. The dataset used in the main experiment of this study underwent rigorous review by a retinal specialist from Konkuk University Hospital in Korea, contributing to both data preprocessing and validation to ensure a qualitative assessment. We conducted experiments on the RETOUCH dataset as well to demonstrate the scalability of the proposed model. Overall, our model demonstrates superior performance over the baseline models in both quantitative and qualitative evaluations. © 2024 Elsevier Ltd | Oh, Dongsuk; Moon, Jonghyeon; Park, Kyoungtae; Kim, Wonjun; Yoo, Seungho; Lee, Hyungwoo; Yoo, Jiho | YOUTH BIO GLOBAL Co., Ltd., Chungbuk, South Korea, Department of English Language and Literature, Kyungpook National University in Daegu, South Korea; YOUTH BIO GLOBAL Co., Ltd., Chungbuk, South Korea; Department of Electrical and Electronics Engineering, Konkuk University, Seoul, South Korea; Department of Electrical and Electronics Engineering, Konkuk University, Seoul, South Korea; YOUTH BIO GLOBAL Co., Ltd., Chungbuk, South Korea; Department of Ophthalmology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, South Korea; YOUTH BIO GLOBAL Co., Ltd., Chungbuk, South Korea | 57211283137; 58963831700; 58963411200; 24329594100; 58963620100; 56046036000; 58963727400 | jiho@youthbioglobal.com; | Expert Systems with Applications | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 249 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 1.32 | 2025-05-07 | 5 | Graph convolution network; Medical image segmentation; Multiscale skip connection; Retinopathy; Transformer | Aldehydes; Coherent light; Image segmentation; Medical imaging; Ophthalmology; Optical tomography; Patient treatment; Age-related macular degeneration; Aging population; Graph convolution network; Medical image segmentation; Morphological parameters; Multiscale skip connection; Quantitative evaluation; Retinopathy; Spectral domain optical coherence tomographies; Transformer; Convolution | English | Final | 2024 | 10.1016/j.eswa.2024.123620 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Hierarchical reasoning based on perception action cycle for visual question answering | Recent visual question answering (VQA) frameworks employ different attention modules to derive a correct answer. The concept of attention is heavily established in human cognition, which led to its magnificent success in deep neural networks. In this study, we aim to consider a VQA framework that utilizes human biological and psychological concepts to achieve a good understanding of vision and language modalities. In this view, we introduce a hierarchical reasoning method based on the perception action cycle (HIPA) framework to tackle VQA tasks. The perception action cycle (PAC) explains how humans learn about and interact with their surrounding world. The proposed framework integrates the reasoning process of multi-modalities with the concepts introduced in PAC in multiple phases. It comprehends the visual modality through three phases of reasoning: object-level attention, organization, and interpretation. In addition, it comprehends the language modality through word-level attention, interpretation, and conditioning. Subsequently, vision and language modalities are interpreted dependently in a cyclic and hierarchical way throughout the entire framework. For further assessment of the generated visual and language features, we argue that image-question pairs of the same answer ought to eventually have similar visual and language features. As a result, we conduct visual and language feature evaluation experiments using metrics such as the standard deviation of cosine similarity and of Manhattan distance. We show that employing PAC in our framework improves the standard deviation compared with other VQA frameworks. For further assessment, we also test the novel proposed HIPA on the visual relationship detection (VRD) task. The proposed method achieves state-of-the-art results on the TDIUC and VRD datasets and obtains competitive results on the VQA 2.0 dataset. The code is available: github.com/Safaa1113/HiPA-Framework. | Mohamud, Safaa Abdullahi Moallim; Jalali, Amin; Lee, Minho | Kyungpook Natl Univ, Grad Sch Artificial Intelligence, Daegu 41566, South Korea; ALI Co Ltd, Daegu 41566, South Korea; Kyungpook Natl Univ, AI Inst Technol, KNU LG Elect Convergence Res Ctr, Daegu 41566, South Korea | Lee, Min-Ho/ABE-5735-2021; Jalali, Amin/AAH-6921-2019 | 58536967700; 57022190400; 57191730119 | safofoh.100@gmail.com;max.jalali@gmail.com;mholee@gmail.com; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 241 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 0.99 | 2025-05-07 | 3 | 3 | Visual question answering; Vision language tasks; Multi-modality fusion; Attention; Bilinear fusion | RECOGNITION; ATTENTION; NETWORK | Attention; Bilinear fusion; Multi-modality fusion; Vision language tasks; Visual question answering | Statistics; Visual languages; Attention; Bilinear fusion; Hierarchical reasoning; Language features; Multi-modality fusion; Perception-action cycle; Question Answering; Vision language task; Visual feature; Visual question answering; Deep neural networks | English | 2024 | 2024-05-01 | 10.1016/j.eswa.2023.122698 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Independent isomeric yield ratios of fission products in the epi-cadmium neutron induced fission of 238Pu | In the epi-cadmium neutron induced fission of 238Pu, independent isomeric yield ratios (IR) of 128,130,132Sb, 131,133Te, 134,136I, 135Xe and 138Cs have been measured by using an off-line γ-ray spectrometric technique. The average neutron energy of the epi-cadmium reactor neutron spectrum is 1.9 MeV. From the IR values, root mean square fragment angular momenta (JRMS) were deduced by using spin dependent statistical model analysis. The JRMS values from the present work in the epi-cadmium neutron induced fission of 238Pu were compared with the literature data in the thermal neutron induced fission of 238Pu to examine the role of excitation energy. Effect of nuclear structure on JRMS values was examined. © 2023 Elsevier Ltd | Naik, H.; Singh, R.J.; Dange, S.P.; Jang, W. | Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India; Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India; Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India; Department of Physics, Kyungpook National University, Daegu, 41566, South Korea | 7005890232; 24322531600; 6602557752; 59777352500 | naikhbarc@yahoo.com; | Radiation Physics and Chemistry | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 217 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0.52 | 2025-05-07 | 1 | <E<sub>n</sub>> =1.9 MeV; <sup>238</sup>Pu(n; Effect of nuclear structure; F) reaction; Fragment angular momentum; Independent isomeric yield ratio; Off-line γ-ray spectrometry | Angular momentum; Fission products; Fission reactions; Gamma ray spectrometers; Isotopes; Neutron spectrometers; Neutrons; Spectrometry; antimony 128; antimony 130; antimony 132; cesium 138; iodine 134; iodine 136; plutonium 238; radioisotope; tellurium 131; tellurium 133; unclassified drug; xenon 135; 238pu(n; <En> =1.9 MeV; Effect of nuclear structure; F) reaction; Fragment angular momentum; Independent isomeric yield ratio; Isomeric yield ratio; Neutron-induced fission; Nuclear structure; Off-line γ-ray spectrometry; Article; controlled study; epi cadmium neutron induced fission; gamma radiation; gamma spectrometry; half life time; neutron radiation; nuclear energy; radioisotope decay; Cadmium | English | Final | 2024 | 10.1016/j.radphyschem.2023.111505 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Influence of Prandtl number on the chaos transition for pure natural and Rayleigh-Benard convections inside a rectangular cavity | A peculiar flow instability known as multiple chaos transitions was recently reported for the free convection in an enclosure where the direction of the temperature gradient changes continuously; it has been explained to be attributed to the competition for dominance between pure natural and Rayleigh - Be rnard convections. In this study, the chaos transition of free convection is investigated when a horizontal or vertical temperature gradient forms in a rectangular cavity. Analyses are conducted under a laminar flow regime, with Prandtl numbers ranging from 0.01 to 50 and Rayleigh numbers up to 10 9 . In the horizontal temperature gradient, the chaostransition Rayleigh number increases monotonically with the Prandtl number. However, under vertical temperature gradient conditions, it reaches the maximum value at approximately Pr = 0.5. Contrary to the general knowledge that higher-Prandtl number fluids effectively stabilize natural convection, a free convection in a vertical temperature gradient initiates a new flow instability when the Prandtl number is over 1.0, where momentum and thermal diffusions balance each other. The oscillation pattern, 2D phase trajectory, power spectral density, and Poincare point of equivalent thermal conductivity are used to assess the free -convection flow instability. | Oh, Jin Ho; Kim, Do-Gyun; Kim, Dong Hwi; Aodu, Sheriff Abiodun; Park, Il Seouk | Dept & Kyungpook Natl Univ, 80 Daehakro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea | 57200224289; 58530939000; 58556778700; 58040958800; 50262800000 | einstein@knu.ac.kr; | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | INT COMMUN HEAT MASS | 0735-1933 | 1879-0178 | 155 | SCIE | MECHANICS;THERMODYNAMICS | 2024 | 6.4 | 6.1 | 0.77 | 2025-05-07 | 1 | 2 | Pure natural convection; Rayleigh-Benard convection; Rectangular cavity; Chaos transition; Prandtl number | TURBULENT CONVECTION; FLOWS; ANNULUS; FLUID | Chaos transition; Prandtl number; Pure natural convection; Rayleigh–Bénard convection; Rectangular cavity | Cavity resonators; Laminar flow; Oscillating flow; Prandtl number; Spectral density; Thermal conductivity; Thermal gradients; Chaos transition; Flow instabilities; Gradient change; Horizontal temperature gradient; Pure natural convection; Rayleigh; Rayleigh number; Rayleigh-Benard convection; Rectangular cavity; Vertical temperature gradients; Natural convection | English | 2024 | 2024-06 | 10.1016/j.icheatmasstransfer.2024.107511 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Luminescence properties of Tb³⁺ -doped sodium phosphate glasses for green laser and X-ray imaging application | Tb3+ doped sodium-gadolinium-aluminum-phosphate glass samples (PGNA) with chemical compositions 30Na(2)CO(3):8Gd(2)O(3):5Al(2)O(3:)(57- x)P2O5: x Tb4O7 (where x = 0, 0.25, 0.5, 1.0, 2.0, 3.0, 4.0, and 5 mol. %) were manufactured by using adopting the conventional melt quenching technique. The PXRD study of the prepared samples was used to confirm the amorphous structure. FE-SEM, EDS, and FTIR studies were carried out to analyze the elemental and structural characteristics of synthesized glasses. The X-ray induced luminescence spectra were obtained at room temperature and the emission peak at 311 nm corresponding to Gd3+ transition was observed decreasing with the increase of Tb4O7 concentrations, while emission peak intensities corresponding to Tb3+ electronic transitions increased with the concentrations of Tb4O7. The results from the photoluminescence (PL) studies in the UV-Vis-NIR region showed the glasses emitting intense green light with the highest peak at 544 nm under excitations at 220, 272, and 311 nm. The PL emission intensities were found reasonably high under characteristic excitations of both Gd3+ and Tb3+, peaking at 380, 414, 437, 489, 544, 584, and 623 nm, which corresponding to D-5(3) -> F-7(6,) D-5(3) -> F-7(5), D-5(3) -> F-7(4), D-5(4) -> F-7(6), D-5(4) -> F-7(5), D-5(4) -> F-7(5), D-5(4) -> F-7(4), D-5(4) -> F-7(3) transitions, respectively. The decay time of Tb3+ ions has been observed to decrease when the concentration of Tb4O7 increases. The energy transfer from Gd3+ to Tb3+ was found increased with increasing of Tb3+ concentrations. The CIE 1931 chromaticity coordinates of Tb doped PGNA glasses were found to be in the green range, indicating a strong potential for green laser application. The results from X-ray imaging showed that Tb-doped glass scintillators promise of efficient and low-cost solution for X-ray imaging applications. | Ntarisa, Amos Vincent; Saha, Sudipta; Quang, Nguyen Duy; Cheewasukhanont, W.; Wantana, N.; Anjum, Faizan; Pakawanit, P.; Phoovasawat, C.; Kim, H. J.; Intachai, N.; Kothan, S.; Kaewkhao, J. | Univ Dar es Salaam, Coll Educ, Dept Math Phys & Informat, Mkwawa Univ, POB 2513, Iringa, Tanzania; Bangladesh Atom Energy Commiss, Inst Nucl Sci & Technol, Dhaka 1349, Bangladesh; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; 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; Chiang Mai Univ, Off Res Adm, Chiang Mai 50200, Thailand; Publ Org, Synchrotron Light Res Inst, Synchrotron Res & Applicat Div, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand | Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023; Ntarisa, Amos Vincent/JWO-6086-2024; Ntarisa, Amos/JWO-6086-2024 | 57160289700; 55935496600; 57223004024; 57118163600; 56267058700; 57219469502; 37020415600; 57220074388; 59051568100; 57221909427; 6507017165; 23974520300 | amos.ntarisa@udsm.ac.tz;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 222 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 2.6 | 2025-05-07 | 4 | 5 | Sodium-phosphate Glass; Luminescence; Tb3+ and Gd3+ ions; Decay time; Energy transfer; X-ray imaging | ENERGY-TRANSFER; IONS; GD3+; BEHAVIOR | Decay time; Energy transfer; Luminescence; Sodium-phosphate Glass; Tb<sup>3+</sup> and Gd<sup>3+</sup> ions; X-ray imaging | Aluminum compounds; Fourier transform infrared spectroscopy; Gadolinium compounds; Glass; Ions; Laser applications; Luminescence; Phosphates; Phosphors; Sodium Carbonate; Terbium compounds; aluminum; gadolinium; glass; sodium phosphate glass; terbium; unclassified drug; Decay time; Emission peaks; Energy-transfer; Green laser; Imaging applications; Luminescence properties; Sodium-phosphate glass; Tb-doped; Tb3+ and gd3+ ion; X-ray imaging; Article; energy dispersive X ray spectroscopy; energy transfer; field emission scanning electron microscopy; Fourier transform infrared spectroscopy; furnace; luminescence; photoluminescence; radiography; refraction index; ultraviolet visible spectroscopy; X ray diffraction; X ray powder diffraction; Energy transfer | English | 2024 | 2024-09 | 10.1016/j.radphyschem.2024.111852 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Nonlinear rheology of stress-controlled rheometers: Large amplitude oscillatory shear | Although stress-controlled rheometers are more popular than strain-controlled rheometers, the latter is preferred to the former. This is because stress-controlled rheometers are apt to suffer from inertia effects. This work demonstrates that stress-controlled rheometers can also be used in the same manner as strain-controlled rheometers to study large amplitude oscillatory shear (LAOS). We demonstrate that the inertia effect can be detoured by employing a sufficiently long conditioning time and that the stress decomposition theory remains valid for stress-controlled LAOS data even when strain is not sinusoidal. However, the decomposed stresses are hard to say elastic and viscous because non-sinusoidal strain and its time derivative do not satisfy gamma(2)(t) + omega(-2)(d gamma/dt)(2 )= gamma(2)(o), where gamma(o) is a positive constant. We are certain that cost-effective stress-controlled rheometers can be used if the purpose of LAOS utilization is to identify the fingerprint of rheologically complex materials. | Choi, Jehyeok; Kim, Min Chan; Hyun, Kyu; Cho, Kwang Soo | Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu, South Korea; Pusan Natl Univ, Sch Chem Engn, Pusan, South Korea | ; Kim, Sang/J-5399-2012 | 57929524700; 36063172000; 24767294900; 56316379300 | polphy@knu.ac.kr; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 36 | 9 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2024 | 4.3 | 6.1 | 0 | 2025-05-07 | 0 | 0 | CONSTITUTIVE-EQUATIONS; BEHAVIOR; INERTIA | Compressive stress; Rheology; Shear flow; Conditioning time; Decomposition theory; Inertia effects; Large amplitude oscillatory shear; Non-sinusoidal; Nonlinear rheology; Sinusoidal strain; Strain-controlled; Stress decompositions; Time derivative; Rheometers | English | 2024 | 2024-09 | 10.1063/5.0219582 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Novel LaCl3:Yb²⁺crystal scintillator for X-ray spectrometer | This work investigated the growth, optical properties, and scintillation performance of a LaCl3 single crystal doped with Yb2+ ions. The crystal was grown using the vertical Bridgman method. The photoluminescence spectrum resembled the X-ray induced luminescence spectrum, indicating emission from the 5d -> 4f transition of Yb2+. LaCl3:Yb2+ exhibited an energy resolution of 14.3% and a light output of 24,940 ph/MeV under 662 keV gamma-ray excitation. Additionally, the scintillation decay profiles were measured using alpha particles and gamma rays from Am-241 and Cs-137 sources, respectively. These results suggest that Yb2+ could be a promising luminescence center for high light yield scintillation detectors. | Wantana, N.; Vuong, P. Q.; Luan, N. T.; Kim, H. J.; Quang, N. D.; Mutuwong, C.; Tariwong, Y.; Pakawanit, P.; Kothan, S.; 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; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Synchrotron Light Res Inst, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand | Kim, Hong Joo/AAE-1178-2022 | 56267058700; 57207618553; 57210576969; 59051568100; 57223004024; 57205297955; 56266485600; 37020415600; 6507017165; 23974520300 | w.nuanthip@gmail.com; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 224 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0.52 | 2025-05-07 | 1 | 1 | LaCl3:Yb2+ crystal; Bridgman technique; X-ray imaging | PULSE-SHAPE DISCRIMINATION; LACL3 CRYSTAL; YB2+; SPECTROSCOPY; LUMINESCENCE; IONS; TRANSITIONS; CONVERSION; EFFICIENT; GROWTH | Bridgman technique; LaCl<sub>3</sub>:Yb<sup>2+</sup> crystal; X-ray imaging | Chlorine compounds; Crystal growth from melt; Gamma rays; Lanthanum compounds; Optical properties; Photoluminescence spectroscopy; Scintillation; Ytterbium compounds; americium 241; cesium 137; lanthanum chloride; ytterbium; Bridgman techniques; Crystal scintillators; Lacl3:yb2+ crystal; Luminescence spectrum; Optical scintillation; Photoluminescence spectrum; Scintillation performance; Vertical Bridgman method; X-ray imaging; X-ray spectrometers; Article; colorimetry; excitation; gamma radiation; Monte Carlo method; nonhuman; photoluminescence; radiation exposure; Raman spectrometry; scintillation; wettability; X ray diffraction; Yb2+ crystal scintillator; Single crystals | English | 2024 | 2024-11 | 10.1016/j.radphyschem.2024.112022 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Novel Tb3+doped borophosphate glass scintillator for X-ray imaging | In this study, we introduce an efficient green-emitting material made from Tb3+ doped borophosphate scintillating glass for X-ray imaging. An influence of Tb2O3 concentration on the physical, optical, luminescent, and scintillation properties of glasses were investigated. The glass density and refractive index increase, while the molar volume and Tb3+ inter-ionic distance decreases with Tb2O3 addition. These glasses absorb the photons in range of UV, Vis, and NIR. The excitations by UV and X-ray on glasses causes the strong green emission centered around 545 nm by the 5D4 -> 7F5 transition of Tb3+. The energy transfer from Gd3+ to Tb3+ was occurred in this emission. The glass doped with 4 mol% of Tb2O3 demonstrates the highest emission intensity at 545 nm due to the concentration quenching. The decay time of glasses are in few milliseconds. The integral X-ray scintillation efficiency of 4 mol% doped glass is 52% compared to that of BGO crystal. Additionally, this glass was proceeded in the X-ray imaging and yielded the image with satisfied resolution, characteristics and MTF values, compared to that obtained from YAG:Ce crystal. The developed glass has a potential for X-ray imaging applications, especially in the medical imaging, flaw detection, and security inspection. | Khrongchaiyaphum, F.; Wantana, N.; Kaewnuam, E.; Pakawanit, P.; Phoovasawat, C.; Vittayakorn, N.; Chanthima, N.; Phongsa, A.; 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; Muban Chombueng Rajabhat Univ, Fac Sci & Technol, Phys Program, Ratchaburi 70150, Thailand; Synchrotron Light Res Inst Publ Org, Synchrotron Res & Applicat Div, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand; King Mongkuts Inst Technol Ladkrabang, Sch Sci, Adv Mat Res Unit, Bangkok 10520, 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 | Kaewnaum, Eakgapon/JWO-6262-2024; Chanthima, Natthakridta/HRC-8083-2023; Vittayakorn, Naratip/O-3663-2018; Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023 | 57222659730; 56267058700; 56267295300; 37020415600; 57220074388; 15077522900; 35361597600; 57792448700; 57221909427; 6507017165; 59051568100; 23974520300 | wnuanthip@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 223 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 1.56 | 2025-05-07 | 4 | 6 | Borophosphate glass; Terbium; Luminescence; X-ray imaging | ENERGY-TRANSFER; OPTICAL-PROPERTIES; TB3+ IONS; LUMINESCENCE; CONDUCTIVITY; BORATE; GD3+; EU3+ | Borophosphate glass; Luminescence; Terbium; X-ray imaging | Energy transfer; Medical imaging; Refractive index; Scintillation counters; Terbium; Terbium compounds; Yttrium aluminum garnet; boric acid; borophosphate glass scintillator; chemical compound; glass; sodium carbonate; terbium; unclassified drug; Borophosphates; Glass density; Glass scintillator; Green-emitting materials; Luminescent property; Optical-; Refractive index increase; Scintillating glass; Scintillation properties; X-ray imaging; Article; energy transfer; human; image analysis; infrared spectroscopy; modulation transfer function; photoluminescence; radiography; refraction index; scintillation; spectral sensitivity; ultraviolet visible spectrophotometry; X ray diffraction; Scintillation | English | 2024 | 2024-10 | 10.1016/j.radphyschem.2024.111851 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optimization of Eu 0.6 Gd (0.4-x) Tb x BO 3 phosphor with Tb 3+concentration for X-ray screen material application | In this study, Eu0.6Gd(0.4-x)TbxBO3 (0.000 <= x <= 0.015) phosphors doped with varying concentrations of Tb3+ were synthesized using the solid-state reaction technique at a temperature of 900 degrees C for 18 h. X-ray diffraction (XRD) was employed to analyze the crystal structures of the Triclinic and Hexagonal phases corresponding to EuBO3 (ICSD No 01-089-7888) and EuBO3 (ICDD No 00-013-0485), respectively. The optical properties were analyzed through absorption excitation and emission spectra obtained via photoluminescence (PL) and radioluminescence (RL) techniques. The CIE chromaticity coordinates indicate a reddish-orange. The sample with x = 0.010 exhibited good optical efficiency under both PL (lambda ex = 394) and RL. Furthermore, the radioluminescence performance of the x = 0.010 phosphor was 9.4% higher than that of the undoped phosphor. Samples responding to X-rays can be presented radiography, appearing brighter and clearer. This indicates that the samples exhibit favorable characteristics for application as an X-ray screen. | Angnanon, A.; Damdee, B.; Intachai, N.; Kim, H. J.; Kothan, S.; Nualpralaksana, S.; Kaewkhao, J. | Chiang Mai Univ, Off Res Adm, Chiang Mai 50200, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Nakhon Pathom Rajabhat Univ Nakhon Pathom, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Chem Program, Nakhon Pathom 73000, Thailand | Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023 | 56267212800; 57118109900; 57221909427; 59051568100; 6507017165; 6506800355; 23974520300 | suchart.kothan@cmu.ac.th;suwimonn@live.com; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 223 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 0.52 | 2025-05-07 | 1 | 4 | Radiography; X-ray scintillation; Radioluminescence; X-rays induced luminescence | LUMINESCENCE | Radiography; Radioluminescence; X-ray scintillation; X-rays induced luminescence | Emission spectroscopy; Europium compounds; Light emission; Optical properties; Solid state reactions; X ray radiography; phosphorus; terbium; Material application; Optimisations; Radio-luminescence; Screen materials; Solid-state reaction techniques; Synthesised; X- ray diffractions; X-ray induced luminescence; X-ray scintillation; X-ray screen; Article; colorimetry; crystal structure; elemental analysis; infrared spectroscopy; luminescence; photoluminescence; radiography; radioluminescence; scintillation; spectrofluorometry; temperature; X ray; X ray diffraction; Phosphors | English | 2024 | 2024-10 | 10.1016/j.radphyschem.2024.111925 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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