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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 | Characteristics of self-propelled Leidenfrost droplets on asymmetrically structured surfaces: Evidence for a self-rotation-induced propulsive mechanism | Self-propelled Leidenfrost droplets on asymmetrically structured surfaces were investigated to study their movements with temperature. It was observed that the terminal velocity is a function of temperature in the low-temperature regime (L regime) but not in the high-temperature regime (H regime). Droplets were not smooth in the L regime but were smooth in the H regime. Because of wrinkles, the light penetrating through droplets was deflected, resulting in differences in light levels in the L and H regimes. While the droplet accelerated to reach its terminal velocity when α = 50° and α = 65°, tiny droplets were breaking off from the trailing edge and moving opposite to the droplet’s moving direction. When α = 80°, as the droplet accelerated, it leaned forward and its leading edge stood higher than its trailing edge. The distinct shape of the droplet is strong evidence to show that the vapor underneath the droplet flows opposite to the droplet’s moving direction. © The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2024. | Jo, Daeseong | Department of Mechanical Engineering, Graduate School, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea, School of Mechanical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea | 16424303000 | djo@knu.ac.kr; | Journal of Mechanical Science and Technology | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 10 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0 | 2025-05-07 | 0 | Leidenfrost droplet; Light level; Self-propelled mechanism; Self-rotation-induced propulsive mechanism; Temperature regime | High-temperature regime; Leidenfrost droplet; Light level; Low-temperature regime; Self rotations; Self-propelled mechanism; Self-rotation-induced propulsive mechanism; Structured surfaces; Temperature regimes; Terminal velocity; Drop formation | English | Final | 2024 | 10.1007/s12206-024-0943-x | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | Article | Controlling pore size and photothermal layer to improve solar-porous evaporation performance | Solar desalination, harvesting solar energy to purify seawater, has received considerable attention due to water scarcity problems caused by climate change and human activity. In this study, we investigated a membrane desalination method that collects vaporized water from the surface of a sun-lit porous medium floating on salt water. To maximize the water evaporation rate at the membrane surface, several effective photothermal converting materials were coated on the membrane. In addition, to amplify the water transport to the sun-lit surface, the pore size of the porous medium also was controlled by filtering sugar particles by size. We found that the evaporation rate increased as the reflectivity of the coating materials decreased, and demonstrate the optimized pore size, leading to improved evaporation at the three-phase interface by controlling the size of the pores. The water transport is caused by the porous medium resulted from competition between capillary and viscous forces; thus, the optimal pore size for maximum water transport and evaporation rate is discussed. The finding of this study provide insight into optimizing the design of the membrane’s structure and coating materials to maximize the evaporation rate in solar desalination. © The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2024. | Choi, Jinwook; Seo, Yongwon; Paeng, Changung; Yim, Changyong; Kim, Seolha | Department of Precision Mechanical Engineering, Kyungpook National University, Sangju, 37224, South Korea; Department of Precision Mechanical Engineering, Kyungpook National University, Sangju, 37224, South Korea; Department of Materials and Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-Daero, Sangju-Si, Gyeongsangbuk-Do, 37224, South Korea; Department of Energy Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University, Sangju, 37224, South Korea; Department of Precision Mechanical Engineering, Kyungpook National University, Sangju, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University, Sangju, 37224, South Korea | 57731545100; 57732044700; 58161154100; 36877182000; 57195257413 | shkim0731@knu.ac.kr; | Journal of Mechanical Science and Technology | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 5 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0 | 2025-05-07 | 0 | Photothermal conversion; Pore size; Porous medium; Solar absorption; Solar evaporator | Climate change; Coated materials; Coatings; Desalination; Evaporation; Membranes; Phase interfaces; Pore size; Solar energy; Coating material; Evaporation rate; Photo-thermal; Photothermal conversion; Porous medium; Solar absorption; Solar desalination; Solar evaporators; Water evaporation; Water transport; Porous materials | English | Final | 2024 | 10.1007/s12206-024-0439-8 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | Article | Influence of rolling motion on CHF location during subcooled flow boiling through a mini-channel | This study investigated the rolling motion effect on the location of critical heat flux (CHF) for subcooled flow boiling within a mini-channel that is heated from one side. The study employed 15° and 25° as rolling amplitudes and 10 and 30 seconds as rolling periods across two different flow rate conditions. The CHF values observed under static conditions and those under rolling motion were subsequently compared. A key finding was that CHF consistently occurred near the highest positions of the rolling platform, where reduced buoyancy force, due to the absence of centrifugal acceleration, combined with only the radial buoyancy component acting in the flow direction, resulted in a slower bubble rise, facilitating easier coalescence of bubbles into a vapor film, leading to CHF. © The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2024. | Aziz, Faraz; Jo, Daeseong | Department of Mechanical Engineering, Graduate School, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Mechanical Engineering, Graduate School, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea, School of Mechanical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea | 57197714203; 16424303000 | djo@knu.ac.kr; | Journal of Mechanical Science and Technology | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 10 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0 | 2025-05-07 | 0 | Centrifugal acceleration; CHF location; Critical heat flux; Rolling motion; Subcooled flow boiling | Heat flux; Radial flow; Vortex flow; Buoyancy forces; Centrifugal acceleration; Critical heat flux location; Flow direction; Flow rate conditions; Mini-channels; Motion effect; Rolling motion; Static conditions; Subcooled flow boiling; Buoyancy | English | Final | 2024 | 10.1007/s12206-024-0941-z | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Numerical study of two-phase hydrodynamics for boiling heat transfer in bi-porous evaporator | Bi-porous evaporator for heat pipes has been studied to replace conventional mono-porous evaporators with lower thermal capacity. The thermal superiority of bi-porous evaporator is a direct function of phase separation phenomenon in small and large-pore zones. However, due to the microscale nature of the system the hidden microscopic phenomenon associated with thermal superiority has not been well established experimentally. In addition, only a few numerical studies have addressed this phenomenon using limited information. In this paper, a two-dimensional numerical simulation is conducted which accurately predicts the thermal performance of a bi-porous evaporator. Additionally, for the first time, several microscopic phenomena such as phase separation, vapor blanket formation, and liquid film formation are numerically reproduced. Thus, the thermal performance of bi-porous evaporator is successfully quantified. The effects of various design parameters are also studied and their effect on thermal performance is also quantified. For comparison, a mono-porous evaporator is also simulated. | Younas, Muhammad Faizan; Park, Il Seouk | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | 59009164300; 50262800000 | einstein@knu.ac.kr; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 5 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0.32 | 2025-05-07 | 2 | 2 | Evaporator; Heat pipe; Phase separation; Bi-porous; Mono-porous | BIPOROUS WICKS; LOOP; SIMULATION; PIPES; FLUX; MASS | Bi-porous; Evaporator; Heat pipe; Mono-porous; Phase separation | Evaporators; Heat transfer; Liquid films; Phase separation; Bi-porous; Boiling heat transfer; Direct functions; Large pores; Limited information; Mono-porous; Thermal; Thermal Performance; Two phase; Two-dimensional numerical simulation; Heat pipes | English | 2024 | 2024-05 | 10.1007/s12206-024-0428-y | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optimal design of gyroid solid-TPMS structures for 8-inch wafer prober lower chuck in additive manufacturing | The advantage of 3D printing is that it can create creative shapes that cannot be manufactured through existing subtractive manufacturing. It can also produce products with improved functionality. In this study, a radial structure with TPMS is applied to improve the temperature uniformity of the wafer prober lower chuck used in semiconductor inspection equipment. The gyroid solid-TPMS structure, the most basic of TPMS structures, is considered, and a 1/9 analysis model is constructed considering that it is an axis-symmetric structure, and optimization is performed through thermal flow analysis. Based on the proposed design, it was confirmed that when the optimization result offset was +0.57 mm, the temperature standard deviation was 0.01 degrees C and the pressure was 0.40 bar. Specimens were manufactured using the proposed optimal design, and the optimization results were verified through lab-based experiment. | Kim, Kunwoo; Park, Sohyun; Lee, Seungyeop; Gu, Siyeon; Jung, Hyungug; Lee, Jaewook | Korea Inst Ind Technol, Daegyung Technol Applicat Div, Daegu, South Korea; Staco Co Ltd, Ansan, South Korea; Kyungpook Natl Univ, Dept Smart Mobil Engn, Daegu, South Korea | 35169979000; 59315132600; 57260442700; 59314534500; 58101030100; 59510648900 | jaewk95@knu.ac.kr; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 9 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0.32 | 2025-05-07 | 2 | 1 | Additive manufacturing; Lower chuck; Gyroid solid-TPMS; Thermal fluid analysis; Optimal design | Additive manufacturing; Gyroid solid-TPMS; Lower chuck; Optimal design; Thermal fluid analysis | Gyroscopes; Inspection equipment; Probes; Smart manufacturing; Thermal modeling; 3-D printing; 3D-printing; Creatives; Gyroid solid-TPMS; Gyroids; Low chuck; Optimal design; Optimisations; Thermal fluid analysis; Wafer probers; Chucks | English | 2024 | 2024-09 | 10.1007/s12206-024-2410-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Optimization study of a probe chuck for semiconductor wafers using genetic algorithm and deep reinforcement learnings | The probe chuck is an inspection device assessing the thermal durability of semiconductor wafers in various temperature environments before shipping. It is most important to ensure that the temperature of the chuck upper surface, on which the wafers are placed, is uniform. This study presents an axisymmetric chuck model to improve surface temperature uniformity in both radial and circumferential directions. The local distribution of the flow path height in the axisymmetric chuck was adjusted to make the chuck upper surface with a constant wall heat flux to simultaneously become as uniform temperature as possible. Three optimization algorithms, namely the genetic algorithm (GA), deep q-network (DQN), and actor-critic (AC) were applied. The optimized shape of the flow pathway, improved temperature uniformity, pressure drop, and local heat transfer coefficient profile by three different optimization algorithms are presented in detail. As a result, the surface temperature difference was significantly reduced from 7.137 K in the existing spiral model to 0.682 K. The optimal axisymmetric chuck could reduce surface temperature differences up to 90 % compared with the conventional spiral chuck. | Choi, Geuna; Aodu, Sheriff Abiodun; Park, Il Seouk | Kyungpook Natl Univ, Dept Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | 57844456900; 58040958800; 50262800000 | einstein@knu.ac.kr; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 8 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0 | 2025-05-07 | 0 | 0 | Semiconductor; Heat exchanger; Design optimization; CFD simulation | HEAT-EXCHANGER | CFD simulation; Design optimization; Heat exchanger; Semiconductor | Atmospheric temperature; Computational fluid dynamics; Deep learning; Genetic algorithms; Heat flux; Heat transfer; Probes; Reinforcement learning; Silicon wafers; Surface properties; Axisymmetric; CFD simulations; Design optimization; Optimization algorithms; Optimization studies; Reinforcement learnings; Semi-conductor wafer; Surface temperature difference; Temperature uniformity; Upper surface; Heat exchangers | English | 2024 | 2024-08 | 10.1007/s12206-024-0734-4 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Reduction of delivery pressure fluctuations in a gerotor pump | Generated rotor (gerotor) pumps have commercial applications in oil supply pumps and compressors. Unfortunately, they produce an excessive amount of noise while in operation. The present study focuses on reducing the noise, which is caused due to pressure oscillations in the fluid, and vibration levels when a gerotor pump is in operation. Three-dimensional numerical simulations were performed on the gerotor pump using the dynamic mesh method. The flow field was simulated using the commercial software Ansys Fluent. The mesh motion was provided in the form of a user-defined function. Computational fluid dynamics analysis was performed for different combinations of delivery pipe length and diameter, and their effects on delivery pressure were analyzed. It is observed from numerical results that the pressure oscillations are reduced around 20 % by increasing volume of port or pipe region, which in turn reduces the noise levels. It is concluded that the pressure oscillations during the fluid flow are highly dependent on the volume of the delivery pipe. | Nazir, Kamran; Sohn, Chang Hyun | Natl Univ Technol NUTECH, Dept Mech Engn, Islamabad 44000, Pakistan; Kyungpook Natl Univ, Sch Mech Engn, Daegu 702701, South Korea | 57200143593; 36806852600 | chsohn@knu.ac.kr; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 38 | 8 | SCIE | ENGINEERING, MECHANICAL | 2024 | 1.7 | 64.6 | 0.32 | 2025-05-07 | 1 | 1 | CFD; Gerotor pump; Noise reduction; Port shape; Pressure oscillations; Vibrations; Noise reduction | DESIGN; PORT | CFD; Gerotor pump; Noise reduction; Noise reduction; Port shape; Pressure oscillations; Vibrations | Flow of fluids; Mesh generation; Noise abatement; Numerical methods; Pumps; Rotors; % reductions; Commercial applications; Gerotor; Gerotor pump; Oil supplies; Port shape; Pressure fluctuation; Pressure oscillation; Supply pumps; Vibration; Computational fluid dynamics | English | 2024 | 2024-08 | 10.1007/s12206-024-0713-9 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Mer tyrosine kinase regulates bone metabolism, and its deficiency partially ameliorates periodontitis- and ovariectomy-induced bone loss in mice | Bone homeostasis is maintained by tightly coordinated activities of bone-forming osteoblasts and bone-resorbing osteoclasts. In the present report, the role of Mer tyrosine kinase (MerTK) in bone metabolism was investigated. The expression of MerTK decreased upon BMP2 stimulation of osteoblast precursors. The femurs of Mertk-deficient mice showed significantly increased bone volume with concomitant increase of bone formation and reduction in bone resorption. These bone phenotypes were attributed to the increased osteoblast differentiation and mineralization accounted by the enhanced beta-catenin and Smad signaling in the absence of MerTK in osteoblast precursors. Although the Mertk-deficient bone marrow macrophages were predisposed to enhanced osteoclast differentiation via augmented Ca2+-NFATc1 signaling, the dramatic increase of Tnfsf11b/Tnfsf11 (Opg/Rankl) ratio in Mertk knockout bones and osteoblast precursors corroborated the reduction of osteoclastogenesis in Mertk deficiency. In ligature-induced periodontitis and ovariectomy models, the bone resorption was significantly attenuated in Mertk-deficient mice compared with wild-type control. Taken together, these data indicate novel role of MerTK in bone metabolism and suggest a potential strategy targeting MerTK in treating bone-lytic diseases including periodontitis and osteoporosis. Graphical Abstract | Ryu, Ka-Young; Pokhrel, Nitin Kumar; Jung, Hye-Jin; Kim, Hyo Jeong; Seok, Jiwon; Kim, Tae-Young; Kim, Hyung Joon; Lee, Ji Hye; Kim, Jae-Young; Kim, Yong-Gun; Lee, Youngkyun | Kyungpook Natl Univ, Dept Biochem, Sch Dent, 2177 Dalgubeol Daero, Daegu 41940, South Korea; Pusan Natl Univ, Sch Dent, Dept Oral Physiol, Yangsan 50612, South Korea; Pusan Natl Univ, Sch Dent, Dept Oral Pathol, Yangsan 50612, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Periodontol, Daegu 41940, South Korea | ; Kim, Ji-Youn/A-5779-2017; Kim, Yong-Gun/JPQ-3309-2023 | 57394631700; 57193827745; 57394721600; 57203629899; 58555739200; 57208461628; 57391336400; 55689992200; 56812734700; 55622694400; 36062942200 | rkfud1208@naver.com;nitinpokhrel.np@gmail.com;roo0593@naver.com;hjsm48@nate.com;db05421@naver.com;tae09290@daum.net;hjoonkim@pusan.ac.kr;jihyelee@pusan.ac.kr;jykim91@knu.ac.kr;periokyg@knu.ac.kr;ylee@knu.ac.kr; | JBMR PLUS | JBMR PLUS | 2473-4039 | 8 | 2 | ESCI | ENDOCRINOLOGY & METABOLISM | 2024 | 2.4 | 64.7 | 0.67 | 2025-05-07 | 1 | 1 | osteoclasts; osteoblasts; bone metabolism; periodontitis; ovariectomy | GROWTH-FACTOR-BETA; EXPRESSION; CELLS; DIFFERENTIATION; OSTEOBLASTS; HOMEOSTASIS; PROMOTER | bone metabolism; osteoblasts; osteoclasts; ovariectomy; periodontitis | protein tyrosine kinase; animal experiment; animal model; animal tissue; Article; bone density; bone development; bone metabolism; bone tissue; cell infiltration; cementoenamel junction; chemoluminescence; coculture; confocal laser scanning microscopy; confocal microscopy; controlled study; female; gene overexpression; genotype; histology; homeostasis; immunoblotting; immunofluorescence; immunofluorescence assay; immunohistochemistry; lumbar vertebra; macrophage; male; mesenchymal stem cell; micro-computed tomography; mineralization; morphometry; mouse; nonhuman; oophorectomy; ossification; osteoblast; osteoclast; osteoclastogenesis; osteolysis; osteoporosis; periodontitis; phenotype; protein expression; real time polymerase chain reaction; RNA isolation; tooth extraction; trabecular bone; ubiquitination; Western blotting | English | 2024 | 2024-02-15 | 10.1093/jbmrpl/ziad014 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Clinical usability and efficacy of a robotic bone fracture reduction system: A pilot animal study | Challenges in minimally invasive surgeries, such as intramedullary nailing for long bone fractures, include radiation overexposure for patients and surgeons, potential malreduction, and physical burden on surgeons in maintaining the reduction status. A robotic bone fracture reduction system was developed in this study to address these problems. The system consists of a hexapod with six degrees of freedom, with a fracture reduction device and a master device. This study aimed to evaluate the novel system in a preclinical setting. The length of the six axes in the system can be adjusted to precisely control the length, angle, and rotation so that no additional traction is required. Fluoroscopic images can be remotely examined to reduce the risk of radiation exposure for surgeons. In this study, alignment accuracy and radiation exposure were measured using 32 bovine bone fracture models, and these surgical outcomes were compared to those of conventional manual surgery to verify the clinical usability and effectiveness of the system. The alignment accuracy was assessed by analyzing length, angulation, and rotation. The four surgeons participating in this study were divided into two groups (expert and novice) according to their clinical experience. All parameters in robotic surgery significantly decreased by approximately 4 mm and 8 degrees on average (p <= 0.05) compared to conventional surgery. The mean radiation exposure in robot-assisted surgery was 0.11 mSv, showing a significant decrease compared to conventional surgery (p < 0.05). Reduction accuracy was higher in robotic surgery performed by the novice group than in conventional surgery performed by the expert group; however, standard deviation values were inversed. In conclusion, the bone fracture reduction robot system increased the alignment accuracy through precise control while reducing radiation exposure in surgeons, as the surgery was performed remotely. The use of this system is predicted to improve the accuracy and reproducibility of the surgery and the safety of medical staff.(1) | Bang, Hyunhee; Lee, Hyun-Joo; Lee, Suk-Joong; Joung, Sanghyun; Kim, Joon-Woo; Oh, Chang-wug; Park, Il-Hyung | Kyungpook Natl Univ, Med Device & Robot Inst, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Orthopaed Surg, Dept Orthopaed Surg, 680 Gukchaebosang Ro, Daegu 41944, South Korea; Gyeongsang Natl Univ, Changwon Hosp, Coll Med, Dept Orthoped Surg, Jinju, South Korea; AIRS Inc, Daegu, South Korea; 9988 Orthoped Clin, Daegu, South Korea | Oh, Chang-Wug/AAO-4602-2021 | 57216785452; 58838750100; 57078230800; 14628748500; 22951329000; 22135834200; 35076285100 | lidmania@daum.net; | MEDICAL ENGINEERING & PHYSICS | MED ENG PHYS | 1350-4533 | 1873-4030 | 133 | SCIE | ENGINEERING, BIOMEDICAL | 2024 | 2.3 | 64.9 | 0.46 | 2025-05-07 | 1 | 1 | Long bone fracture; Fracture reduction; Robotic surgery; Malrotation; Radiation exposure; Bovine model | NAVIGATION | Bovine model; Fracture reduction; Long bone fracture; Malrotation; Radiation exposure; Robotic surgery | Animals; Cattle; Fracture Fixation; Fractures, Bone; Humans; Pilot Projects; Robotic Surgical Procedures; Arthroplasty; Fracture mechanics; Medical robotics; Motion planning; Transplantation (surgical); Alignment accuracy; Bone fracture; Bovine model; Fracture reduction; Long bone fractures; Malrotation; Radiation Exposure; Reduction systems; Robotics surgery; accuracy; animal experiment; animal model; Article; bovine model; clinical effectiveness; clinical significance; control system; controlled study; fluoroscopy; fracture reduction; fracture reduction device; fracture treatment; human; intermethod comparison; job experience; long bone; malrotation syndrome; medical expert; medical parameters; medical specialist; medical staff; minimally invasive surgery; nonhuman; orthopedic surgeon; patient safety; pilot study; prediction; professional competence; radiation exposure; radiation hazard; reproducibility; risk reduction; robot assisted surgery; statistical parameters; traction therapy; treatment outcome; animal; bovine; devices; diagnostic imaging; fracture; fracture fixation; procedures; robot assisted surgery; surgery; Robotic surgery | English | 2024 | 2024-11 | 10.1016/j.medengphy.2024.104242 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Cylindrical depth image based customized helical bone plate design | Commercial straight metal plates have been generally used to fix fractured bones, but recently, the need for customized and helical metal plates has emerged. Customized metal plates are designed to fit the shape of the fracture area that is a 3D curved surface, making it more difficult than designing on a 2D plane. Helical plates are researched due to their advantage in avoiding blood vessel damage compared to commercially available straight metal plates. In this paper, we propose a novel algorithm to design a customized helical metal plate for the femur using cylindrical depth images and Boolean operations. We also present the results of 3D printing a metal plate designed using the proposed algorithm, and the shape matching is verified by calculating the minimum distance between the surface of the printed plate and the surface of the femur. | Seo, Udeok; Choi, Yoo-Joo; Kim, Ku-Jin | Kyungpook Natl Univ, 3D Convergence Technol Ctr, 80 Daehak Ro, Daegu 41566, South Korea; Seoul Media Inst Technol, Dept AI Software Engn, Seoul 03925, South Korea; Kyungpook Natl Univ, Sch Comp Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57188813010; 7404777137; 7409317366 | kujinkim@gmail.com; | MEDICAL ENGINEERING & PHYSICS | MED ENG PHYS | 1350-4533 | 1873-4030 | 129 | SCIE | ENGINEERING, BIOMEDICAL | 2024 | 2.3 | 64.9 | 0 | 2025-05-07 | 0 | 0 | Customized helical bone plate; Cylindrical depth image; Fracture fixation; Implant design; Boolean operation; 3D printing | IMPLANTS | 3D printing; Boolean operation; Customized helical bone plate; Cylindrical depth image; Fracture fixation; Implant design | Algorithms; Bone Plates; Equipment Design; Femur; Humans; Printing, Three-Dimensional; Prosthesis Design; 3D printing; Fracture; Plate metal; 3-D printing; 3D-printing; Bone plate; Boolean operations; Customized helical bone plate; Cylindrical depth image; Depth image; Image-based; Implant design; Metal plates; algorithm; Article; cylindrical depth image; equipment design; femur; image reconstruction; imaging; intermethod comparison; mathematical model; three-dimensional imaging; bone plate; diagnostic imaging; equipment design; human; prosthesis design; three dimensional printing; Blood vessels | English | 2024 | 2024-07 | 10.1016/j.medengphy.2024.104187 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | The Effects of Job Stress on South Korean Teachers' Instructional Practices: The Mediating Roles of Teacher Self-Efficacy and Job Satisfaction | With growing concerns about South Korean teachers' stress stemming from their working environment (e.g., student behaviors, workload, administration system), we used structural equation modeling to analyze the relationship between teacher job stress, self-efficacy, job satisfaction, and instructional practices. Data collected from 2,462 South Korean teachers who participated in the TALIS 2018 were used. Results showed that teacher job stress had a positive direct effect on instructional practices. Teacher job stress had a negative indirect effect on instructional practices via self-efficacy and job satisfaction, respectively. Teacher self-efficacy and job satisfaction acted as sequential mediators between teacher job stress and instructional practices. Implications of the results are discussed, including the multifaceted impact of teacher job stress on teachers' psychological and instructional outcomes. | Kang, Ho Soo; Lee, Woon Kyung | Kyungpook Natl Univ, Daegu, South Korea; Ewha Womans Univ, Seoul, South Korea | 59812533500; 57190192771 | lwk@ewha.ac.kr; | KEDI JOURNAL OF EDUCATIONAL POLICY | KEDI J EDUC POLICY | 1739-4341 | 21 | 2 | SSCI | EDUCATION & EDUCATIONAL RESEARCH | 2024 | 0.8 | 64.9 | 0 | 2025-05-07 | 0 | 0 | teacher job stress; self-efficacy; job satisfaction; instructional practices; structural equation model | SCHOOL CLIMATE; BURNOUT; PERFORMANCE; MOTIVATION; EXPERIENCE; COMMITMENT; QUALITY; DEMANDS; HEALTH; STRAIN | instructional practices; job satisfaction; self-efficacy; structural equation model; teacher job stress | English | 2024 | 2024 | 10.22804/kjep.2024.21.2.001 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | Meeting Abstract | Exploring the Potential of Loquat Leaf Extract-Induced Autophagy in Mitigating Photoaging: A Comprehensive Examination of ROS, SIRT-1, AP-1, and MAPK Pathways. | Lee, S.; Song, B. | Kyungpook Natl Univ, Daegu, South Korea | MOLECULAR BIOLOGY OF THE CELL | MOL BIOL CELL | 1059-1524 | 1939-4586 | 35 | 1 | SCIE | CELL BIOLOGY | 2024 | 2.7 | 65.0 | 0 | English | 2024 | 2024-01-01 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Long non-coding RNA SOX2OT in tamoxifen-resistant breast cancer | Hormone receptor (HR)-positive breast cancer can become aggressive after developing hormone-treatment resistance. This study elucidated the role of long non-coding RNA (lncRNA) SOX2OT in tamoxifen-resistant (TAMR) breast cancer and its potential interplay with the tumor microenvironment (TME). TAMR breast cancer cell lines TAMR-V and TAMR-H were compared with the luminal type A cell line (MCF-7). LncRNA expression was assessed via next-generation sequencing, RNA extraction, lncRNA profiling, and quantitative RT-qPCR. SOX2OT overexpression effects on cell proliferation, migration, and invasion were evaluated using various assays. SOX2OT was consistently downregulated in TAMR cell lines and TAMR breast cancer tissue. Overexpression of SOX2OT in TAMR cells increased cell proliferation and cell invasion. However, SOX2OT overexpression did not significantly alter SOX2 levels, suggesting an independent interaction within TAMR cells. Kaplan-Meier plot analysis revealed an inverse relationship between SOX2OT expression and prognosis in luminal A and B breast cancers. Our findings highlight the potential role of SOX2OT in TAMR breast cancer progression. The downregulation of SOX2OT in TAMR breast cancer indicates its involvement in resistance mechanisms. Further studies should explore the intricate interactions between SOX2OT, SOX2, and TME in breast cancer subtypes. | Lee, Jeeyeon; Kim, Eun-Ae; Kang, Jieun; Chae, Yee Soo; Park, Ho Yong; Kang, Byeongju; Lee, Soo Jung; Lee, In Hee; Park, Ji-Young; Park, Nora Jee-young; Jung, Jin Hyang | Kyungpook Natl Univ, Sch Med, Dept Surg, Daegu, South Korea; Kyungpook Natl Univ, Cell & Matrix Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Oncol Hematol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pathol, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Hoguk Ro 807, Daegu 41404, South Korea | ; Park, Jin-Young/HDN-0483-2022; PARK, JUN-YOUNG/P-5981-2015 | 37079213100; 55241586600; 57212252058; 57190793908; 56564377200; 57279815300; 57203597252; 57191881516; 57210160197; 57226185359; 57209310173 | jjh01@knu.ac.kr; | BMC MOLECULAR AND CELL BIOLOGY | BMC MOL CELL BIOL | 2661-8850 | 25 | 1 | SCIE | CELL BIOLOGY | 2024 | 2.7 | 65.0 | 0.83 | 2025-05-07 | 2 | 2 | Breast cancer; Tamoxifen; Resistance; LncRNA; SOX2OT | SUBTYPES; METASTASIS; THERAPY | Breast cancer; LncRNA; Resistance; SOX2OT; Tamoxifen | Antineoplastic Agents, Hormonal; Breast Neoplasms; Cell Line, Tumor; Cell Movement; Cell Proliferation; Down-Regulation; Drug Resistance, Neoplasm; Female; Gene Expression Regulation, Neoplastic; Humans; MCF-7 Cells; Neoplasm Invasiveness; Prognosis; RNA, Long Noncoding; SOXB1 Transcription Factors; Tamoxifen; Tumor Microenvironment; long untranslated RNA; tamoxifen; transcription factor Sox2; antineoplastic hormone agonists and antagonists; long non-coding RNA Sox2ot, human; long untranslated RNA; tamoxifen; transcription factor Sox; agar gel electrophoresis; Article; breast cancer; cancer growth; cancer prognosis; cancer resistance; cancer tissue; cell invasion; cell migration; cell proliferation; cell viability; controlled study; down regulation; gene expression profiling; gene overexpression; high throughput sequencing; human; human cell; MCF-7 cell line; MTT assay; protein expression; protein expression level; real time polymerase chain reaction; RNA extraction; tumor microenvironment; upregulation; wound healing assay; breast tumor; cell motion; cell proliferation; drug effect; drug resistance; female; gene expression regulation; genetics; metabolism; pathology; prognosis; tumor cell line; tumor invasion | English | 2024 | 2024-04-22 | 10.1186/s12860-024-00510-y | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Meeting Abstract | γ-Mangosteen on Anti-Skin Aging: Its Impact on Keap1-Nrf2 Signaling, MMPs Pathway, and autophagy | Song, B.; Lee, S. | Kyungpook Natl Univ, KO-52634 Daegu, South Korea | MOLECULAR BIOLOGY OF THE CELL | MOL BIOL CELL | 1059-1524 | 1939-4586 | 35 | 1 | SCIE | CELL BIOLOGY | 2024 | 2.7 | 65.0 | 0 | English | 2024 | 2024-01-01 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Association between multimorbidity and periodontal disease in Korean adults: A nationwide cross-sectional cohort study | Objectives: This study aimed to investigate the association between multimorbidity, which refers to the presence of two or more chronic diseases, and periodontal disease in Korean adults using national survey data.Methods: A total of 12,440 Korean adults aged >= 19 years were selected from the seventh Korea National Health and Nutrition Examination Survey (KNHANES). We investigated periodontal disease status based on various variables, including the gender, age, educational level, income level, smoking and alcohol drinking status, frequency of daily toothbrushing, and unmet dental treatment needs. Furthermore, periodontal status according to diagnosed chronic diseases, including hypertension, dyslipidaemia, stroke, myocardial infarction, angina pectoris, and diabetes, was investigated, and the association between multimorbidity and periodontal disease was analysed through multiple logistic regression using SAS 9.4.Results: According to the general characteristics of the study participants, the prevalence of periodontal disease was higher in males, smokers, older age, and lower educational and income levels (p < 0.001). Moreover, as the frequency of daily toothbrushing increased, the distribution of periodontal disease decreased (p < 0.001). The prevalence of periodontal disease was higher in those with chronic diseases than in those without chronic diseases and was statistically significantly higher as the number of diagnosed chronic diseases increased (p < 0.001). Additionally, an increase in the number of chronic diseases was observed to increase the prevalence and risk of periodontal disease.Conclusion: These results suggest that multimorbidity significantly affects the prevalence of periodontal disease. | Jung, Yun-Sook; Kim, Young-Seok; Kim, Ki-Rim | Kyungpook Natl Univ, Dept Dent Hyg, Sangju, South Korea; Kyungpook Natl Univ, Dept Dent Hyg, 2559 Gyeongsang Daero, Sangju 37224, South Korea | Kim, Yangdo/AAC-2495-2021 | 57193342858; 56091925200; 35793746200 | young1224@knu.ac.kr;rim0804@knu.ac.kr; | INTERNATIONAL JOURNAL OF DENTAL HYGIENE | INT J DENT HYG | 1601-5029 | 1601-5037 | 22 | 2 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2024 | 1.4 | 65.1 | 1.29 | 2025-05-07 | 2 | 2 | chronic disease; KNHANES; multimorbidity; periodontal disease | chronic disease; KNHANES; multimorbidity; periodontal disease | Adult; Chronic Disease; Cohort Studies; Cross-Sectional Studies; Humans; Male; Multimorbidity; Nutrition Surveys; Periodontal Diseases; Prevalence; Republic of Korea; adult; chronic disease; cohort analysis; cross-sectional study; human; male; multiple chronic conditions; nutrition; periodontal disease; prevalence; South Korea | English | 2024 | 2024-05 | 10.1111/idh.12785 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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