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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 | Optimization of the flow channel in proton exchange membrane fuel cells using multi-regression surrogate model based on artificial neural network | The spatially uniform distribution of reactants (humidified air and hydrogen) in the anode and cathode is a critical factor affecting the performance of proton exchange membrane fuel cells (PEMFCs). The non-uniform distribution of reactants in the membrane electrolyte assembly (MEA) can trigger local hot spots in the MEA and accelerate the thermal degradation and life span reduction of a PEMFC. In this study, the shape optimization of the flow channel in a bipolar plate is conducted to achieve better reaction uniformity in PEMFCs. To enhance the reaction uniformity and prevent serious pressure drops in the flow channel, the local height of the flow channel is adjusted using a four-point spline baffle model, and the multi-regression surrogate model based on an artificial neural network is developed for optimization. The surrogate model showed an accuracy of 95% in the prediction of current density and pressure drop. Using the surrogate model, the optimal flow channel shape with a current density of 1.883 A/cm 2 and pressure drop of 1155 Pa is proposed, which are 9.6% larger current density than that of the basic no-baffle model and 42% smaller pressure drop than that of the rectangular baffle model with a similar level of current density. | Pak, Seong Bae; Kim, Jin Beom; Park, Il Seouk | Kyungpook Natl Univ, Dept Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57290832100; 58504809700; 50262800000 | einstein@knu.ac.kr; | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | INT COMMUN HEAT MASS | 0735-1933 | 1879-0178 | 157 | SCIE | MECHANICS;THERMODYNAMICS | 2024 | 6.4 | 6.1 | 0.77 | 2025-05-07 | 1 | 2 | Polymer electrolyte membrane fuel cell; Current density; Pressure drop; Four-point spline baffle; Neural network; Surrogate model | ELECTROLYTE MEMBRANE; MASS-TRANSFER; PERFORMANCE | Current density; Four-point spline baffle; Neural network; Polymer electrolyte membrane fuel cell; Pressure drop; Surrogate model | Channel flow; Current density; Drops; Electrodes; Neural networks; Polyelectrolytes; Pressure drop; Flow channels; Four-point; Four-point spline baffle; Membrane electrolyte assemblies; Model-based OPC; Multi-regression; Neural-networks; Optimisations; Proton-exchange membranes fuel cells; Surrogate modeling; Proton exchange membrane fuel cells (PEMFC) | English | 2024 | 2024-09 | 10.1016/j.icheatmasstransfer.2024.107808 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Photo and X-ray induced luminescences of Eu³⁺-doped sodium alumino boro-tellurite oxyfluoride scintillating glass for X-ray detecting material | The spectroscopy features of sodium alumino boro-tellurite oxyfluoride glasses doped with various molar fractions of Eu2O3 ions (TBANEu) are studied through absorbance, excitation, emission, and decay curves. The excitation data are used following phonon side band spectroscopy to evaluate the phonon energy (1326 cm(-1)) of the glass host. The densities, molar volumes, and refractive indices, including the Omega(2,4,6) parameters of fabricated glasses are studied. The magnitudes of laser properties like effective line widths, branching ratios, and emission cross-sections obtained for the Eu3+:D-5(0)-> F-7(2) transition could be useful for reddish-orange lighting devices application. Additionally the quantum efficiency estimated from experimental and calculated lifetimes is about > 70% for the D-5(0) level luminescence of TBANEu glasses. Upon 395 nm radiation, the current glass system can exhibit color coordinates close to (0.647, 0.351) for reddish-orange light as performed by the CIE1931 chromaticity diagram. The integral scintillation intensities of TBANEu glasses were determined using the X-ray excitation and observed that the TBANEu20 glass showed a highest scintillation efficiency of 39%, resulting in scintillator and X-ray sensing device applications. | Meejitpaisan, P.; Doddoji, Ramachari; 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; 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, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | ; Meejitpaisan, Piyachat/HSG-3266-2023; Kim, Hong Joo/AAE-1178-2022; Ramachari, D./C-1205-2019 | 56006076500; 57214510277; 6507017165; 59051568100; 23974520300 | doddojiramachari@duytan.edu.vn;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 | 0.52 | 2025-05-07 | 1 | 4 | Boro-tellurite oxyfluoride glass; Europium; Reddish orange lighting; Scintillation; Efficiency; X-ray excitation | OPTICAL-ABSORPTION; FLUOROBORATE GLASSES; EU3+ IONS; RED LASER; EMISSION; PHOSPHATE; PHOTOLUMINESCENCE; INTENSITIES; STATE; DY3+ | Boro-tellurite oxyfluoride glass; Efficiency; Europium; Reddish orange lighting; Scintillation; X˗ray excitation | Citrus fruits; Europium compounds; Glass; Lighting; Phonons; Refractive index; Scintillation; Sodium compounds; Tellurium compounds; aluminum fluoride; boron trioxide; europium; europium oxide; glass; metal oxide; sodium alumino borotellurite oxyfluoride scintillating glass; sodium fluoride; tellurium dioxide; unclassified drug; Absorbances; Boro-tellurite oxyfluoride glass; Decay curves; Device application; Excitation curves; Oxyfluoride glass; Oxyfluorides; Reddish orange lighting; Scintillating glass; X-ray excitation; analytical parameters; Article; luminescence; photoluminescence; photoluminescence emission; photoluminescence excitation; radiation; refraction index; spectroscopy; stoichiometry; X ray; X ray excited luminescence; Europium | English | 2024 | 2024-11 | 10.1016/j.radphyschem.2024.111954 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Physical and luminescence properties of Ce³⁺ activated strontium phosphate glasses | Strontium phosphate (SrO-P 2 O 5 - Al 2 O 3 - Gd 2 O 3 ) glasses with 0.05, 0.1, 0.5, and 1 mol % CeO 2 were prepared by the conventional melt quenching technique. These glasses' luminescence, scintillation, and physical properties were measured and discussed in detail. The density, refractive index, and oxygen packing density of the studied glasses were increased with an increase in CeO 2 concentration. At lower concentrations of CeO 2 , the characteristic 310 nm emission from Gd 3 + and broadband emission from Ce 3 + ions were obtained under X-ray excitations. The intensity of both Gd 3 + and Ce 3 + emission bands under 270 nm Gd 3 + excitations reduced with further increase in CeO 2 , showing the delayed energy transfer from Gd 3 + to Ce 3 + ions. The integrated X-ray-induced luminescence intensity of 0.5% CeO 2 glass was found to be 21% that of reference BGO crystal. For the lower concentration of CeO 2 , a slow decay time along with the fast Ce 3 + decay was observed and disappears for higher CeO 2 concentrations. The fast luminescence decay in the range of 22 ns-30 ns was observed for all the PSAG:Ce glasses, which was attributed to the lifetime of the 4f -5d transition of the Ce 3 + ions. The faster decay time and reasonable scintillation light suggest the application of these glasses for radiation detector applications. | Khan, Arshad; Saha, Sudipta; Kim, H. J.; Wantana, N.; Kaewkhao, J.; Kothan, S.; Abdalla, Ayman M.; Albargi, Hasan B. | Najran Univ, Fac Arts & Sci, Dept Phys, Najran, Saudi Arabia; Najran Univ, Unit Radiat Protect, Najran 1101, Saudi Arabia; Najran Univ, Promising Ctr Sensors & Elect Devices PCSED, POB 1988, Najran 11001, Saudi Arabia; Bangladesh Atom Energy Commiss, Inst Nucl Sci & Technol, Dhaka 1349, Bangladesh; Kyungpook Natl Univ, Dept Phys Educ, 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 | Khan, Arshad/ABB-1566-2021; Albargi, Hasan/AAX-5267-2021; Abdalla, Ayman/KVY-9213-2024; Kim, Hong Joo/AAE-1178-2022 | 56017063700; 55935496600; 59051568100; 56267058700; 23974520300; 6507017165; 36450112500; 55951578100 | hongjoo@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 221 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 1.04 | 2025-05-07 | 2 | 2 | Melt quenching; Strontium phosphate glasses; Photoluminescence; X-ray luminescence; Energy transfer | OPTICAL-PROPERTIES; ENERGY-TRANSFER; SCINTILLATION; ULTRAVIOLET; IRRADIATION | Energy transfer; Melt quenching; Photoluminescence; Strontium phosphate glasses; X-ray luminescence | Alumina; Aluminum oxide; Cerium oxide; Glass; Ions; Quenching; Refractive index; Scintillation; Strontium compounds; cerium; cerium oxide; gadolinium; glass; oxygen; phosphate; strontium; Ce 3+; Decay time; Energy-transfer; Low concentrations; Luminescence properties; Melt quenching techniques; Melt-quenching; Packing density; Strontium phosphate glass; X ray luminescence; Article; concentration (parameter); decay time constant; density; energy transfer; luminescence; melting point; physical parameters; refraction index; scintillation; synthesis; X ray; Energy transfer | English | 2024 | 2024-08 | 10.1016/j.radphyschem.2024.111728 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Pure CaF2 crystal for fast neutron detection | Pure CaF2 crystals have been widely used for optical functional crystals due to their good optical properties, mechanical properties, and chemical stability. This study discovered the crystal's pulse shape discrimination (PSD), proving it a promising scintillator for fast neutron detection via the 40Ca neutron capture reaction. Luminescence emission spectra were studied by X-ray luminescence measurements. The maximum emission peak was observed between 250 and 300 nm, corresponding to self-trap exciton emission. The crystal response to gamma, alpha, and neutron were studied under 137Cs, 241Am, and 252Cf radiation sources, respectively. The difference in gamma and alpha decay times enabled the PSD capability of pure CaF2. Large neutron reaction cross-sections, PSD capability, and good chemical stability make pure CaF2 crystal candidates for fast neutron beam monitoring detectors. Moreover, the crystal can be used for 40Ca(n,p)40K and 40Ca(n,alpha)37Ag neutron capture cross-section study. | Quang, Nguyen Duy; Hieu, Phan Bao Quoc; Kim, Hongjoo | Kyungpook Natl Univ, Dept Phys, 80 Daehak Ro, Daegu 41566, South Korea; Dalat Nucl Res Inst, Da Lat, Vietnam | 57223004024; 58996436600; 59051568100 | hongjoo@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 221 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 1.04 | 2025-05-07 | 0 | 3 | Pure CaF 2 crystal; Scintillation neutron detector; Pulse shape discrimination; X-ray luminescence; Light yield | PULSE-SHAPE DISCRIMINATION; SCINTILLATOR; SPECTROSCOPY; CALIBRATION; SEARCH | Light yield; Pulse shape discrimination; Pure CaF<sub>2</sub> crystal; Scintillation neutron detector; X-ray luminescence | Calcium fluoride; Chemical stability; Crystals; Emission spectroscopy; Fluorspar; Neutron detectors; Neutron irradiation; Neutrons; X ray detectors; americium 241; calcium; californium 252; cesium 137; Fast-neutron detection; Functional crystals; Light yield; Luminescence emission; Neutron capture reaction; Optical-; Pulse shape discrimination; Pure CaF2 crystal; Scintillation neutron detector; X ray luminescence; alpha radiation; Article; crystal structure; decay time constant; gamma radiation; luminescence; neutron; neutron capture therapy; physical chemistry; scintillation spectrometry; Optical properties | English | 2024 | 2024-08 | 10.1016/j.radphyschem.2024.111756 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Quantum yield and scintillation behaviors of lanthanum barium borate doped with Eu 3+ion scintillating glasses | Lanthanum barium borate glasses doped with Eu 3 + ions were synthesized using a melt quenching method, with a nominal chemical composition of {10La 2 O 3 - 20BaO-(70-x)B 2 O 3 -xEu 2 O 3 ; 0.0 = 7.0} mol%. These glass samples were characterized, including assessments of their physical, structural, optical, and luminescent properties. The emission spectra, both of photoluminescence and radioluminescence studies were presented and found featuring five distinct peaks at 577 nm ( 5 D 0 -> 7 F 0 ), 590 nm ( 5 D 0 -> 7 F 1 ), 613 nm ( 5 D 0 -> 7 F 2 ), 652 nm ( 5 D 0 -> 7 F 3 ), and 701 nm ( 5 D 0 -> 7 F 4 ). Interestingly, concentration quenching effects were observed at Eu 3 + concentrations of 3.0 mol% and 5.0 mol% for photoluminescence and radioluminescence respectively. The decay time of LaBaBEu3.0 show 1.617 ms and the quantum yield reaching value of 14.16%. The CIE 1931 chromaticity coordinates of these glasses show reddish-orange color. This reddish-orange color was particularly observed when the samples were excited under a UV lamp. | Angnanon, A.; Damdee, B.; Kirdsiri, K.; Intachai, N.; Kaewjaeng, S.; Yamanoi, K.; Sarukura, N.; Kim, H. J.; Kothan, 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, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Osaka Univ, Inst Laser Engn, 2-6 Yamadaoka, Suita, Osaka 5650871, Japan; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Intachai, Nuttawadee/HOH-1735-2023; Yamanoi, Kohei/B-2150-2013; Kim, Hong Joo/AAE-1178-2022 | 56267212800; 57118109900; 34881618200; 57221909427; 55871868200; 35243839300; 56251140500; 59051568100; 6507017165; 23974520300 | suchart.kothan@cmu.ac.th;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 221 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2024 | 3.3 | 6.1 | 1.04 | 2025-05-07 | 3 | 3 | Borate glass; Optical properties; Photoluminescence; Radioluminescence | SPECTROSCOPIC PROPERTIES; FLUORESCENCE; LUMINESCENCE; LASER | Borate glass; Optical properties; Photoluminescence; Radioluminescence | Barium compounds; Citrus fruits; Emission spectroscopy; Glass; Lanthanum compounds; Optical properties; Quantum yield; Quenching; barium; bismuth; boric acid; europium; germanium; glass; lanthanum; oxygen; scintillating glass; unclassified drug; Borate glass; Chemical compositions; Emission spectrums; Glass samples; Luminescent property; Melt quenching method; Optical-; Radio-luminescence; Scintillating glass; Synthesised; Article; chemical composition; chemical parameters; chemical procedures; color; color temperature; colorimetry; concentration (parameter); controlled study; density; emission spectrum; Judd Ofelt intensity; luminescence; melt quenching method; molar volume; photoluminescence; quantum yield; radioluminescence; reddish orange color; scintillation; spectrum; synthesis; temperature; ultraviolet radiation; volume; X ray diffraction; Photoluminescence | English | 2024 | 2024-08 | 10.1016/j.radphyschem.2024.111758 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Radiation hardness and scintillation properties of Tb-doped phosphate glasses under proton and X-ray irradiation | In this study, we investigated the radiation hardness of phosphate glasses doped with terbium (Tb) ions, having the composition 56P 2 O 5 : 30Na 2 CO 3 : 5Al 2 O 3 : 8Gd 2 O 3 : 1Tb 4 O 7 , under proton and X-ray beam excitation. These glasses were synthesized using the melt and quench method. The dose distribution inside the volume of these samples was studied, and the absolute absorbed dose was calculated. The scintillation and optical properties, such as photoluminescence, transmission, absorption, etc., were studied and compared before and after exposure to irradiation. Under both types of irradiation, we observed two major emission peaks corresponding to the transitions 5 D 3 -* 7 F 5 (at 480 - 510 nm, in the blue region) and 5 D 4 -* 7 F 6 (at 535 - 565 nm, in the green region). The dominant green emission is attributed to the presence of Tb 3+ dopants. Notably, after X-ray irradiation, we observed a change in the sample's color, accompanied by a decrease in the intensity of all peaks. This suggests a potential limitation in the radiation hardness of Tb-doped phosphate glass. Similarly we checked the luminous intensity with 100 MeV proton beam. Furthermore, we conducted thermal annealing process to explore the possibility of radiation damage recovery and found out that sample does recover, its intensity recovered and its color change back to transparent from yellowish color. Our results highlight characteristics of Tb-doped phosphate glasses, which make them valuable for diverse applications such as radiation detection, dosimetry, radiography, biomedical imaging, and related fields. | Anjum, Faizan; Quang, Nguyen Duy; Luan, Nguyen Thanh; Ntarisa, Amos, V; Saha, Sudipta; Cheewasukhanont, W.; Lee, J.; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Kyungpook Natl Univ, Dept Phys, 80 Daehakro, Daegu 41566, South Korea; Kyungpook Natl Univ, Ctr High Energy Phys, 80 Daehakro, Daegu 41566, South Korea; Univ Dar es Salaam, Mkwawa Univ, Dept Math Phys & Informat, Coll Educ, POB 2513, Iringa, Tanzania; Bangladesh Atom Energy Commiss, Inst Nucl Sci & Technol, Dhaka 1349, Bangladesh; 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; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand | Kim, Hong Joo/AAE-1178-2022; Ntarisa, Amos/JWO-6086-2024; Ntarisa, Amos Vincent/JWO-6086-2024 | 57219469502; 57223004024; 57210576969; 57160289700; 55935496600; 57118163600; 36835827400; 59051568100; 6507017165; 23974520300 | hongjoo@knu.ac.kr; | 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 | 1.56 | 2025-05-07 | 5 | 4 | X-ray induced luminescence; Proton induced luminescence; Radiation hardness; Absolute absorbed dose; Geant4; Thermal annealing | GREEN; PHOTOLUMINESCENCE; DOSIMETRY; BEHAVIOR; CENTERS; FIBER | Absolute absorbed dose; Geant4; Proton induced luminescence; Radiation hardness; Thermal annealing; X-ray induced luminescence | Color; Hardness; Medical imaging; Radiation damage; Recovery; Scintillation; Sodium Carbonate; terbium; Absolute absorbed dose; Absorbed dose; Geant4; Phosphate glass; Proton induced luminescence; Radiation hardness; Scintillation properties; Thermal-annealing; X ray irradiation; X-ray induced luminescence; absorption; air pollution; Article; chemical composition; chemical reaction; dosimetry; phosphorescence; photoluminescence; proton radiation; radiation detection; radiation dose distribution; radiation exposure; radiation hardness; radiation related phenomena; radiography; refraction index; refractometry; scintillation; thermal annealing; ultraviolet spectrophotometry; X irradiation; X ray emission spectroscopy; Glass | English | 2024 | 2024-09 | 10.1016/j.radphyschem.2024.111837 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Radioluminescence and photoluminescence properties of Sm3+-doped Gd-Ba-Na borate glass scintillator | This study investigates the potential of Gd-Ba-Na borate glasses doped with Sm3+ ions as scintillation materials. The glasses were synthesized using a melt-quenching process, and their luminescence properties were examined. The results demonstrate that the glass sample with 0.5 mol% of Sm3+ exhibits the most promising scintillation performance, achieving the highest integral scintillation efficiency (24.11%) compared to the BGO crystal. For the photoluminescence study, the emission spectra, under 403 nm excitation wavelength, show emission bands centered at 563, 599, 646, and 706 nm, consistent with characteristic Sm3+ transitions. The highest energy transfer efficiency from Gd3+ to Sm3+ (64.37%) is also found in the glass sample with 0.5 mol% Sm3+. The emission color can be tuned by varying the excitation wavelength. Excitation at 403 nm primarily excites Sm3+ ions, resulting in orange emission. In contrast, excitation at 275 nm excites Gd3+ ions, leading to reddish-orange emission. The results demonstrate the potential of this glass composition for use as a highly efficient scintillation material due to its excellent performance in both radioluminescence and photoluminescence properties. | Luewarasirikul, N.; Sarachai, S.; Intachai, N.; Kirdsiri, K.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Suan Sunandha Rajabhat Univ, Fac Sci & Technol, Appl Phys Program, Bangkok 10300, Thailand; 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 Educ, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023 | 55871345500; 56267332500; 57221909427; 34881618200; 6507017165; 59051568100; 23974520300 | narun.lu@ssru.ac.th;mink110@hotmail.com;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 | 0.52 | 2025-05-07 | 2 | 4 | Borate glass; Samarium; Photoluminescence; Radioluminescence; Glass scintillator | ENERGY-TRANSFER; IONS; LUMINESCENCE; STATE; OXIDE; DY3+; SM3+ | Borate glass; Glass scintillator; Photoluminescence; Radioluminescence; Samarium | Barium compounds; Citrus fruits; Emission spectroscopy; Energy transfer; Gadolinium compounds; Glass; Ions; Phosphors; Samarium; Samarium compounds; Scintillation; Sodium compounds; Ternary alloys; barium; copper; gadolinium; samarium; sodium; Borate glass; Excitation wavelength; Glass samples; Glass scintillator; Melt-quenching; Orange emissions; Photoluminescence properties; Radio-luminescence; Scintillation materials; Synthesised; aquatic environment; Article; energy; energy transfer; luminescence; photochemical quenching; photoluminescence; radioluminescence; scintillation; ultraviolet spectroscopy; Photoluminescence | English | 2024 | 2024-11 | 10.1016/j.radphyschem.2024.112064 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Robust unsupervised domain adaptation by retaining confident entropy via edge concatenation | The generalization capability of unsupervised domain adaptation can mitigate the need for extensive pixel-level annotations to train semantic segmentation networks by training models on synthetic data as a source with computer-generated annotations. Entropy-based adversarial networks are proposed to improve source domain prediction; however, they disregard significant external information, such as edges, which have the potential to identify and distinguish various objects within an image accurately. To address this issue, we introduce a novel approach to domain adaptation, leveraging the synergy of internal and external information within entropy-based adversarial networks. In this approach, we enrich the discriminator network with edge-predicted probability values within this innovative framework to enhance the clarity of class boundaries. Furthermore, we devised a probability-sharing network that integrates diverse information for more effective segmentation. Incorporating object edges addresses a pivotal aspect of unsupervised domain adaptation that has frequently been neglected in the past-the precise delineation of object boundaries. Conventional unsupervised domain adaptation methods usually center around aligning feature distributions and may not explicitly model object boundaries. Our approach effectively bridges this gap by offering clear guidance on object boundaries, thereby elevating the quality of domain adaptation. Our approach undergoes rigorous evaluation on the established unsupervised domain adaptation benchmarks, specifically in adapting SYNTHIA-* Cityscapes and SYNTHIA-* Mapillary. Experimental results show that the proposed model attains better performance than state-of-the-art methods. The superior performance across different unsupervised domain adaptation scenarios highlights the versatility and robustness of the proposed method. | Hong, Hye-Seong; Kumar, Abhishek; Lee, Dong-Gyu | Kyungpook Natl Univ, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea | ; Kumar, Abhishek/ABA-5251-2021 | 58122576400; 57206266703; 57169003900 | ghdtjd0810@naver.com;abhishek.kumar.eee13@itbhu.ac.in;dglee@knu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 238 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2024 | 7.5 | 6.1 | 1.65 | 2025-05-07 | 4 | 5 | Unsupervised domain adaptation; Semantic segmentation; Entropy-based adversarial network; Depth estimation; Semantic edge detection | SEMANTIC SEGMENTATION | Depth estimation; Entropy-based adversarial network; Semantic edge detection; Semantic segmentation; Unsupervised domain adaptation | Air navigation; Edge detection; Entropy; Image enhancement; Semantic Segmentation; Semantic Web; Adversarial networks; Depth Estimation; Domain adaptation; Entropy-based; Entropy-based adversarial network; External informations; Object boundaries; Semantic edge detection; Semantic segmentation; Unsupervised domain adaptation; Semantics | English | 2024 | 2024-03-15 | 10.1016/j.eswa.2023.122120 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Study on scintillation properties and proton-induced radiation damage of LaCl3 crystals | A Cs2LiYCl6 (CLYC) scintillation crystal is a promising candidate for fast neutron spectroscopy due to its dual mode gamma/neutron capability and good energy resolution. Despite promising features, CLYC's limited radiation tolerance and inability to separate alpha/proton particles using pulse shape discrimination (PSD) method restrict its applicability in fast neutron spectroscopy. The significant cross-sections for Cl-35(n,p)S-35 and 35Cl(n, alpha)P-32 reactions make Cl-35-containing crystals attractive candidates for fast neutron detection, prompting their development as a promising new solution. This study reports the growth of LaCl3 crystals via the Bridgman technique, enabling further exploration of their scintillation and material properties for fast neutron detection applications. The effects of the proton irradiation on LaCl3 crystals were investigated by irradiating them with a 100 MeV proton beam at the Korea Multi-purpose Accelerator Complex. The study quantified radiation damage by comparing the pre- and post-irradiation scintillation properties and PSD of the LaCl3 crystals. The results of the measurements demonstrate that LaCl3 crystals are promising candidates for applications in fast neutron identification, spectroscopy, and space mission, maintaining performance even under high-radiation environments. | Ahn, S. W.; Choi, E. J.; Kim, H. J.; Kim, S. H.; Luan, N. T.; Nam, U. W.; Park, H. | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Cheongju Univ, Dept Radiol Sci, Cheongju 28503, South Korea; Korea Astron & Space Sci Inst, Space Sci Div, Daejeon 34055, South Korea | Kim, Hong Joo/AAE-1178-2022 | 58738868200; 59152694800; 59051568100; 36165569900; 57210576969; 6602840978; 58642658300 | sunshine@knu.ac.kr; | 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 | 1.04 | 2025-05-07 | 2 | 2 | LaCl3 crystals; Scintillation property; Fast neutron; Radiation hardness; Pulse shape discrimination | Fast neutron; LaCl<sub>3</sub> crystals; Pulse shape discrimination; Radiation hardness; Scintillation property | Crystals; Lanthanum compounds; Lithium compounds; Neutron detectors; Neutron irradiation; Neutron scattering; Neutron sources; Neutrons; Proton irradiation; Radiation damage; Scintillation; chlorine; glass fiber; lanthanum chloride; lithium fluoride; proton; Dual modes; Energy resolutions; Fast neutron spectroscopy; Fast neutrons; Fast-neutron detection; Lacl3 crystal; Pulse shape discrimination; Radiation hardness; Scintillation crystals; Scintillation properties; Article; crystal; degradation; diagnostic procedure; fast neutron spectroscopy; luminescence; mathematical phenomena; pulse shape discrimination; radiation exposure; radiation injury; radiation tolerance; refraction index; scintillation; simulation; Chlorine compounds | English | 2024 | 2024-09 | 10.1016/j.radphyschem.2024.111855 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Synthesis of eco-friendly borosilicate glass with Eu³⁺ dopants: Harnessing recovered silica gel waste for reddish-orange emission materials | In this study, recovered silica gel waste (RSGW) is used as a key raw material to create borosilicate glass doped with Eu3+ ions in a new and environmentally friendly way. The glass compositions were fabricated using the melt quenching method, with different amounts of RSGW and a constant 1.0 mol% Eu3+ doping concentration. The study shows that increasing the doping concentration of RSGW improves the glass density and rigidity while reducing the molar volume, indicating enhanced glass stability. Photoluminescence and X-ray luminescence analyses confirm that the optimal composition with 50 mol% RSGW exhibits the strongest emission. Based on the phonon sideband analysis, the host glasses have a phonon energy of 966.53 cm(-1). An X-ray absorption near-edge structure (XANES) analysis showed that most of the europium ions were in the 3+ oxidation state. The CIE 1931 chromaticity investigation shows the x,y color coordinates at (0.645, 0.351) in the reddish-orange region. To optimize the doping concentration of Eu2O3, it was determined that a fixed concentration of 50 mol% RSGW created the most suitable mixture. Both luminescence emission spectra exhibit strong luminescence, with a peak emission wavelength of 615 nm (D-5(0)-> F-7(2)), confirming concentration quenching in both photoluminescence and x-ray luminescence at a concentration of 1.0 mol%. The study explores potential applications of this novel material in photonics and suggests that this eco-friendly synthesis approach holds great promise for sustainable and efficient production of reddish-orange emission materials. | Manyum, P.; Rittisut, W.; Wantana, N.; Ruangtaweep, Y.; Rachniyom, W.; Rujirawat, S.; Kamonsuangkasem, K.; Yimnirun, R.; Prasatkhetragarn, A.; Intachai, N.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Suranaree Univ Technol, Sch Phys, Nakhon Ratchasima 30000, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci, Nakhon Pathom 73000, Thailand; Publ Org, Synchrotron Light Res Inst, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand; Vidyasirimedhi Inst Sci & Technol VISTEC, Sch Energy Sci & Engn, Rayong 21210, Thailand; Vidyasirimedhi Inst Sci & TECHNOL VISTEC, Res Network NANOTEC VISTEC Nanotechnol Energy, Rayong 21210, Thailand; Univ Phayao, Sch Sci, Appl Sci Program, Phayao 56000, 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; Rachniyom, Watcharin/GOE-5849-2022; Kim, Hong Joo/AAE-1178-2022 | 6506891657; 57208675448; 56267058700; 37108588700; 56267368200; 6603107856; 55437015900; 24504594000; 23098474100; 57221909427; 6507017165; 59051568100; 23974520300 | winzensio@gmail.com;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 | 1.04 | 2025-05-07 | 0 | 2 | Recovered silica gel waste; Eu3+ ions; Melt quenching method | BISMUTH-BORATE GLASSES; OPTICAL-PROPERTIES; LOCAL-STRUCTURE; ENERGY-TRANSFER; LITHIUM; DY3+; EUROPIUM(III); TEMPERATURE; ABSORPTION; SPECTRA | Eu<sup>3+</sup> ions; Melt quenching method; Recovered silica gel waste | Citrus fruits; Emission spectroscopy; Environmental protection; Photoluminescence; Quenching; Recovery; Silica gel; X ray absorption; boric acid; europium; glass; gold nanoparticle; oxygen; silica gel; Doping concentration; Eco-friendly; Emission materials; Eu3+ ion; Glass compositions; Glass density; Melt quenching method; Orange emissions; Recovered silicum gel waste; X ray luminescence; Article; biocompatibility; chemical structure; colorimetry; crystallization; doping; electric potential; nonhuman; particle size; photoluminescence; prevalence; Raman spectrometry; refraction index; spectroscopy; temperature stress; visual acuity; X ray diffraction; X ray fluorescence; Ions | English | 2024 | 2024-09 | 10.1016/j.radphyschem.2024.111838 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Tb3+doped silicoborate glass scintillator for high resolution synchrotron X-rays imaging application | This research aims to develop a combination of SiO2 and B2O3 glass former (called, silicoborate glass) to be used as a scintillation material for digital radiography application. The silicoborate glass doped with different concentration of Tb2O3, xTb2O3-7.5Gd2O3-40Na2O-5SiO2- (47.5-x)B2O3, where x = 0, 1, 2, and 3 mol% (xTb:7.5Gd) were prepared by melting and then rapid quenching in graphite mold. The density of the prepared glasses was high with Tb2O3 concentration, indicating that the glass became denser and could strongly interact with X-rays. The molar volume increased with Tb2O3 concentration, suggesting the increase of Non-Bridging Oxygen (NBOs) in glass matrix. The xTb:7.5Gd glasses absorbed photons in visible and near-infrared regions and was observed that the absorption bands increased with Tb2O3 concentration, which was the result of the 4f64f6 transitions behavior of Tb3+ ions. The photoluminescence and radioluminescence results revealed the distinct emission occurring at 544 nm (5D4 -> 7F5). The photoluminescence quantum yield (PLQY) of glass had the maximum efficiency at 30.85%. The luminescence peak area under X-rays excitation glass was maximum at 109% of BGO crystal. CIE 1931 chromaticity of the xTb:7.5Gd glasses showed the color coordinates in yellowishgreen area. The decay time of the xTb:7.5Gd glasses were in the millisecond range for different excitations. The probability of energy transfer was investigated between Gd3+ and Tb3+ ions in glass and may occur mainly between the 6P7/2 level of Gd3+ and 5H7 level of Tb3+. The X-rays imaging using the developed glass as a scintillator was performed by Synchrotron X-rays and the spatial resolution 6 lp/mm was achieved. These results demonstrate that the 3 mol% of Tb2O3 doped silicoborate glass can be used as a scintillator and can be applied for a high-resolution Synchrotron X-rays imaging system. | Intachai, N.; Kothan, S.; Wantana, N.; Khrongchaiyapum, F.; Kaewjaeng, S.; Pakawanit, P.; Phoovasawat, C.; Chanlek, N.; Kanjanaboos, P.; Phuphathanaphong, N.; Kim, H. J.; 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, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, 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 | ; Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023 | 57221909427; 6507017165; 56267058700; 59237824400; 55871868200; 37020415600; 57220074388; 24775167600; 36521096600; 58478665700; 59051568100; 23974520300 | suchart.kothan@cmu.ac.th;mink110@hotmail.com;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 | 2.08 | 2025-05-07 | 3 | 8 | Terbium; Silicoborate glass; Scintillating glass; Xray detection; Imaging applications | ELECTRONIC-ENERGY LEVELS; LANTHANIDE AQUO IONS; LUMINESCENCE; TB3+ | Imaging applications; Scintillating glass; Silicoborate glass; Terbium; Xray detection | Energy transfer; Infrared devices; Photoluminescence; Refractive index; Silica; Terbium; Terbium compounds; glass; gold nanoparticle; graphite; silicoborate glass; terbium; unclassified drug; Digital radiography; Glass scintillator; Glassformers; Graphite mold; High resolution; Imaging applications; Scintillating glass; Scintillation materials; Silicoborate glass; X-ray detections; Article; attenuated total reflectance Fourier transform infrared spectroscopy; colorimetry; cone beam computed tomography; digital radiography; drug mixture; drug synthesis; elemental analysis; energy dispersive X ray spectroscopy; energy transfer; Fourier transform; geometry; hydrogen bond; image quality; imaging; infrared spectroscopy; mathematical analysis; melting point; molar tooth; nonhuman; photoluminescence; radiography; Raman spectrometry; refraction index; scintillation; signal noise ratio; spectral sensitivity; spectroscopy; X ray; X ray diffraction; Glass | English | 2024 | 2024-11 | 10.1016/j.radphyschem.2024.112062 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | The flow interference investigation of multi-square prisms under fluid-structure interaction. I. Proximal wake characteristics of tandem square prisms | This study investigates the aerodynamic characteristics and interference effect of tandem square prisms in fluid-structure interaction. Using large eddy simulation, three-dimensional tandem square prisms are analyzed under different spacing and vibration. Based on the mean pressure coefficient and flow field phenomenology, the specific reasons and underlying mechanisms of the changes are discussed. The results show that the structural vibration accelerates the curling of the shear layer around the upstream structure, increases the vortex shedding frequency of the structure, and reduces the distance between the vortices. It also amplifies the transverse correlation between vortex structures and intensifies the influence of the gap flow on the downstream structure. The increased spacing between the tandem square prisms changes the flow mechanism of the wake separated from the upstream structure, leading to a more uniform and regular streamlined pattern. Simultaneously, a flow field phenomenon is observed, such as an early rolled-up shear layer, turbulence enhancement, preliminary vortex formation, weakened downwash flow, and the change of field flow due to the vibration. This study is expected to deepen the understanding of flow interference investigation between tandem square prisms in the fluid-structure interaction field. | Chen, Zengshun; Guan, Tengda; Zhang, Likai; Li, Sunwei; Kim, Bubryur; Fu, Yunfei; Li, Cruz Y.; Zhang, Xuelin | 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, Kowloon, Hong Kong, Peoples R China; Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China; Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China | Zhang, Xuelin/L-5200-2019; Li, Cruz/AAB-7607-2022 | 55866149500; 59220198000; 57217526147; 55523768500; 57198355299; 57288502300; 57217102878; 57207317373 | zengshunchen@cqu.edu.cn;202216131298t@stu.cqu.edu.cn;zhanglikai@cqu.edu.cn;li.sunwei@sz.tsinghua.edu.cn;brkim@knu.ac.kr;yfuar@connect.ust.hk;yliht@connect.ust.hk;zhangxlin25@mail.sysu.edu.cn; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 36 | 7 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2024 | 4.3 | 6.1 | 0.75 | 2025-05-07 | 3 | 3 | INFLOW TURBULENCE GENERATOR; LARGE-EDDY SIMULATION; CYLINDER; LES; VIBRATIONS; QUALITY; CFD | Flow fields; Fluid structure interaction; Large eddy simulation; Prisms; Shear flow; Structural dynamics; Vibration analysis; Vortex flow; Aerodynamic characteristics; Aerodynamic interference; Flow interference; Fluid-structure interaction; Interference effects; Large-eddy simulations; Mean pressure coefficients; Pressure flow; Shear layer; Square prism; Wakes | English | 2024 | 2024-07 | 10.1063/5.0201581 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Comparison of Short-Term Outcomes and Safety Profiles between Androgen Deprivation Therapy plus Abiraterone/Prednisone and Androgen Deprivation Therapy plus Docetaxel in Patients with De Novo Metastatic Hormone-Sensitive Prostate Cancer | Purpose: This study aimed to compare the short-term outcomes and safety profiles of androgen-deprivation therapy (ADT)+abiraterone/prednisone with those of ADT+docetaxel in patients with de novo metastatic hormone-sensitive prostate Materials and Methods: A web-based database system was established to collect prospective cohort data for patients with mHSPC in Korea. From May 2019 to November 2022, 928 patients with mHSPC from 15 institutions were enrolled. Among these patients, data from 122 patients who received ADT+abiraterone/prednisone or ADT+docetaxel as the primary systemic treatment for mHSPC were collected. The patients were divided into two groups: ADT+abiraterone/prednisone group (n=102) and ADT+docetaxel group (n=20). We compared the demographic characteristics, medical histories, baseline cancer status, initial laboratory tests, metastatic burden, oncological outcomes for mHSPC, progression after mHSPC treatment, adverse effects, follow-up, and survival data between the two groups. Results: No significant differences in the demographic characteristics, medical histories, metastatic burden, and baseline cancer status were observed between the two groups. The ADT+abiraterone/prednisone group had a lower prostate-specific antigen (PSA) progression rate (7.8% vs. 30.0%; p=0.011) and lower systemic treatment discontinuation rate (22.5% vs. 45.0%; p=0.037). No significant differences in adverse effects, oncological outcomes, and total follow-up period were observed between the two groups. Conclusions: ADT+abiraterone/prednisone had lower PSA progression and systemic treatment discontinuation rates than ADT+docetaxel. In conclusion, further studies involving larger, double-blinded randomized trials with extended follow-up periods are necessary. | Park, Dong Jin; Kwon, Tae Gyun; Park, Jae Young; Joung, Jae Young; Ha, Hong Koo; Jeon, Seong Soo; Hong, Sung-Hoo; Park, Sungchan; Lee, Seung Hwan; Cho, Jin Seon; Park, Sung-Woo; Kwon, Se Yun; Jo, Jung Ki; Park, Hong Seok; Lee, Sang-Cheol; Kwon, Dong Deuk; Kim, Sun Il; Park, Sang Hyun; Kim, Soodong; Jeong, Chang Wook; Kwak, Cheol; Choi, Seock Hwan | Dongguk Univ, Coll Med, Dept Urol, Gyeongju, South Korea; Kyungpook Natl Univ, Sch Med, Dept Urol, Daegu, South Korea; Korea Univ, Ansan Hosp, Dept Urol, Ansan, South Korea; Natl Canc Ctr, Ctr Prostate Canc, Dept Urol, Goyang, South Korea; Pusan Natl Univ, Pusan Natl Univ Hosp, Sch Med, Dept Urol, Busan, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Urol, Seoul, South Korea; Catholic Univ Korea, Seoul St Marys Hosp, Coll Med, Dept Urol, Seoul, South Korea; Univ Ulsan, Ulsan Univ Hosp, Coll Med, Dept Urol, Ulsan, South Korea; Yonsei Univ, Coll Med, Severance Hosp, Dept Urol, Seoul, South Korea; Hallym Univ, Sacred Heart Hosp, Coll Med, Dept Urol, Anyang, South Korea; Pusan Natl Univ, Yangsan Hosp, Sch Med, Dept Urol, Yangsan, South Korea; Hanyang Univ, Coll Med, Dept Urol, Seoul, South Korea; Korea Univ, Coll Med, Dept Urol, Seoul, South Korea; Chungbuk Natl Univ, Coll Med, Chungbuk Natl Univ Hosp, Dept Urol, Cheongju, South Korea; Chonnam Natl Univ, Hwasun Hosp, Med Sch, Dept Urol, Hwasun, South Korea; Ajou Univ, Sch Med, Dept Urol, Suwon, South Korea; Inje Univ, Coll Med, Haeundae Paik Hosp, Dept Urol, Busan, South Korea; Dong A Univ, Coll Med, Dept Urol, Busan, South Korea; Seoul Natl Univ, Seoul Natl Univ Hosp, Coll Med, Dept Urol, Seoul, South Korea | ; Kwak, Cheol/J-2731-2012; Park, Sung-Woo/N-9769-2016; Lee, Seung Hwan/AAE-4710-2022; Park, Jae Young/AFQ-0813-2022; Ha, Hong/W-1873-2019; Park, Jae young/AFQ-0813-2022 | 57220636322; 15073765400; 55717166600; 57222985702; 36854637400; 7203005276; 37030299600; 55677038800; 57188553133; 35241941000; 57185889000; 35995613300; 37060991000; 35743748300; 57218216917; 7103159860; 56701708500; 57191671086; 42961635600; 8879131000; 7005639032; 9742645500 | skhwan.script@gmail.com; | WORLD JOURNAL OF MENS HEALTH | WORLD J MENS HEALTH | 2287-4208 | 2287-4690 | 42 | 3 | SCIE | ANDROLOGY;UROLOGY & NEPHROLOGY | 2024 | 4.1 | 6.2 | 0.75 | 2025-05-07 | 2 | 1 | Abiraterone acetate; Adverse effects; Docetaxel; Prostatic neoplasms; Treatment outcome | Abiraterone acetate; Adverse effects; Docetaxel; Prostatic neoplasms; Treatment outcome | abiraterone; antiandrogen; docetaxel; prednisone; prostate specific antigen; aged; androgen deprivation therapy; anemia; Article; biochemical progression free survival; cancer growth; cancer hormone therapy; cancer patient; cohort analysis; constipation; diarrhea; drug safety; dyspnea; edema; fatigue; follow up; hot flush; human; hyperglycemia; liver function test; major clinical study; male; metastatic castration sensitive prostate cancer; mucosa inflammation; multiple cycle treatment; nail disease; nail toxicity; nausea; pain; prospective study; side effect; skin disease; systemic therapy; treatment outcome | English | 2024 | 2024-07 | 10.5534/wjmh.230104 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Development and Validation of a Robust and Interpretable Early Triaging Support System for Patients Hospitalized With COVID-19: Predictive Algorithm Modeling and Interpretation Study | Background: Robust and accurate prediction of severity for patients with COVID-19 is crucial for patient triaging decisions. Many proposed models were prone to either high bias risk or low-to-moderate discrimination. Some also suffered from a lack of clinical interpretability and were developed based on early pandemic period data. Hence, there has been a compelling need for advancements in prediction models for better clinical applicability. Objective: The primary objective of this study was to develop and validate a machine learning-based Robust and Interpretable Early Triaging Support (RIETS) system that predicts severity progression (involving any of the following events: intensive care unit admission, in-hospital death, mechanical ventilation required, or extracorporeal membrane oxygenation required) within 15 days upon hospitalization based on routinely available clinical and laboratory biomarkers. Methods: We included data from 5945 hospitalized patients with COVID-19 from 19 hospitals in South Korea collected between January 2020 and August 2022. For model development and external validation, the whole data set was partitioned into 2 independent cohorts by stratified random cluster sampling according to hospital type (general and tertiary care) and geographical location (metropolitan and nonmetropolitan). Machine learning models were trained and internally validated through a cross-validation technique on the development cohort. They were externally validated using a bootstrapped sampling technique on the external validation cohort. The best-performing model was selected primarily based on the area under the receiver operating characteristic curve (AUROC), and its robustness was evaluated using bias risk assessment. For model interpretability, we used Shapley and patient clustering methods. Results: Our final model, RIETS, was developed based on a deep neural network of 11 clinical and laboratory biomarkers that are readily available within the first day of hospitalization. The features predictive of severity included lactate dehydrogenase, age, absolute lymphocyte count, dyspnea, respiratory rate, diabetes mellitus, c-reactive protein, absolute neutrophil count, platelet count, white blood cell count, and saturation of peripheral oxygen. RIETS demonstrated excellent discrimination (AUROC=0.937; 95% CI 0.935-0.938) with high calibration (integrated calibration index=0.041), satisfied all the criteria of low bias risk in a risk assessment tool, and provided detailed interpretations of model parameters and patient clusters. In addition, RIETS showed potential for transportability across variant periods with its sustainable prediction on Omicron cases (AUROC=0.903, 95% CI 0.897-0.910). Conclusions: RIETS was developed and validated to assist early triaging by promptly predicting the severity of hospitalized patients with COVID-19. Its high performance with low bias risk ensures considerably reliable prediction. The use of a nationwide multicenter cohort in the model development and validation implicates generalizability. The use of routinely collected features may enable wide adaptability. Interpretations of model parameters and patients can promote clinical applicability. Together, we anticipate that RIETS will facilitate the patient triaging workflow and efficient resource allocation when incorporated into a routine clinical practice. | Baek, Sangwon; Jeong, Yeon Joo; Kim, Yun-Hyeon; Kim, Jin Young; Kim, Jin Hwan; Kim, Eun Young; Lim, Jae-Kwang; Kim, Jungok; Kim, Zero; Kim, Kyunga; Chung, Myung Jin | Samsung Med Ctr, Med AI Res Ctr, Seoul, South Korea; NYU, Ctr Data Sci, New York, NY USA; Pusan Natl Univ, Res Inst Convergence Biomed Sci & Technol, Dept Radiol, Yangsan Hosp, Yangsan, South Korea; Chonnam Natl Univ Hosp, Dept Radiol, Gwangju, South Korea; Keimyung Univ, Dongsan Hosp, Dept Radiol, Daegu, South Korea; Chungnam Natl Univ Hosp, Dept Radiol, Daejeon, South Korea; Gachon Univ, Gil Med Ctr, Dept Radiol, Incheon, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Chungnam Natl Univ, Dept Infect Dis, Sejong Hosp, Sejong, South Korea; Sungkyunkwan Univ, Sch Med, Dept Data Convergence & Future Med, Seoul, South Korea; Samsung Med Ctr, Res Inst Future Med, Biomed Stat Ctr, 81 Irwon Ro, Seoul 06351, South Korea; Sungkyunkwan Univ, Dept Digital Hlth, SAIHST, Seoul, South Korea; Samsung Med Ctr, Dept Radiol, Seoul, South Korea | ; Kim, Kyunga/LCL-2839-2024; Kim, Jungok/JWP-9097-2024; Kim, Juhee/KFS-3069-2024; Chung, Myung/C-1876-2011 | 58753322500; 57706214000; 35313444300; 55862597800; 55910532600; 55577620300; 55515341400; 57207436660; 57224128611; 57467763700; 55728272500 | kyunga.j.kim@gmail.com; | JOURNAL OF MEDICAL INTERNET RESEARCH | J MED INTERNET RES | 1438-8871 | 26 | SCIE | HEALTH CARE SCIENCES & SERVICES;MEDICAL INFORMATICS | 2024 | 6 | 6.2 | 0 | 2025-04-16 | 1 | 1 | COVID-19; prognosis; prognostic; prognostics; prediction model; early triaging; interpretability; machine learning; predict; prediction; predictive; triage; triaging; emergency; severity; biomarker; biomarkers; SHAP; Shapley; clustering; hospital admission; hospital admissions; hospitalize; hospitalization; hospitalizations; neural network; neural networks; deep learning; Omicron; SARS-CoV-2; coronavirus | biomarker; biomarkers; clustering; coronavirus; COVID-19; deep learning; early triaging; emergency; hospital admission; hospital admissions; hospitalization; hospitalizations; hospitalize; interpretability; machine learning; neural network; neural networks; Omicron; predict; prediction; prediction model; predictive; prognosis; prognostic; prognostics; SARS-CoV-2; severity; SHAP; Shapley; triage; triaging | Algorithms; Biomarkers; COVID-19; Hospital Mortality; Humans; Neural Networks, Computer; Republic of Korea; Triage; biological marker; C reactive protein; lactate dehydrogenase; biological marker; C reactive protein; lactate dehydrogenase; oxygen; adult; aged; algorithm; anosmia; Article; artificial ventilation; breathing rate; calibration; cardiovascular disease; clinical practice; cohort analysis; comorbidity; controlled study; coronavirus disease 2019; coughing; cross validation; deep learning; deep neural network; diabetes mellitus; dimensionality reduction; disease severity; dyspnea; extracorporeal oxygenation; female; fever; hospital admission; hospital patient; hospitalization; human; hypertension; intensive care unit; laboratory test; leukocyte count; machine learning; major clinical study; male; multicenter study; multivariate logistic regression analysis; oxygen saturation; pandemic; patient triage; platelet count; prediction; predictive model; prognosis; random forest; receiver operating characteristic; risk assessment; robust and interpretable early triaging support; SARS-CoV-2 Omicron; Severe acute respiratory syndrome coronavirus 2; sore throat; South Korea; support vector machine; symptom; tertiary health care; validation study; vital sign; article; deep learning; deep neural network; diagnosis; hospital admission; hospitalization; machine learning; nerve cell network; patient triage; prediction; Severe acute respiratory syndrome coronavirus 2; workflow | English | 2024 | 2024-01-11 | 10.2196/52134 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Does preoperative bone marrow edema affect clinical outcomes after medial open-wedge high tibial osteotomy? | PurposeThe aim of this study is to evaluate the results of high tibial osteotomy (HTO) in patients with bone marrow edema (BME) and assess the effect of factors on the subsequent results.MethodsA total of 138 patients who underwent medial open-wedge HTO using locking plate were included in this study. BME was observed in 108 patients using preoperative magnetic resonance imaging. Clinical results were evaluated before HTO and postoperatively at 12 months. Moreover, we evaluated the factors affecting the clinical results.ResultsThe clinical scores were all significantly improved regardless of the presence of BME. There were no differences in improvement of clinical scores between patients with BME and without BME. Patients with BME showed higher postoperative Western Ontario and McMaster Universities Arthritis Index (WOMAC) stiffness scores than patients without BME. Furthermore, patients with BME on both the femur and tibia showed lower Knee Society function scores than patients with BME on either the femur or the tibia. Patients with large BME lesions exhibited a lower Hospital for Special Surgery score and WOMAC pain scores, postoperatively. In patients with BME, patients with undercorrection showed significantly lower improvement in WOMAC pain scores compared with patients with acceptable correction.ConclusionsThe clinical improvement after HTO in patients with varus and medial osteoarthritis was not different regardless of the presence or absence of BME. However, accurate alignment should be considered essential for achieving better clinical outcomes in patients with preoperative BME. | Kim, Hee-June; Shin, Ji-Yeon; Lee, Hyun-Joo; Kim, Dong-Hyun; Jo, Yeonggwon; Kim, Joon-Woo; Oh, Chang-Wug; Kyung, Hee-Soo | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Orthopaed Surg, 130 Dongduk Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Prevent Med, Daegu, South Korea | Oh, Chang-Wug/AAO-4602-2021 | 36463735200; 55567961600; 58838750100; 57198637188; 58888353600; 22951329000; 22135834200; 7004292406 | hskyung@knu.ac.kr; | KNEE SURGERY & RELATED RESEARCH | KNEE SURG RELAT RES | 2234-2451 | 36 | 1 | ESCI | ORTHOPEDICS;SURGERY | 2024 | 4.4 | 6.2 | 4.61 | 2025-05-07 | 3 | 5 | Osteotomy; Knee; Magnetic resonance imaging | KNEE; OSTEOARTHRITIS; PATTERN | Knee; Magnetic resonance imaging; Osteotomy | English | 2024 | 2024-02-12 | 10.1186/s43019-023-00200-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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