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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 | Effect of heat exchanger design on seasonal performance of heat pump systems | This paper presents the effect of heat exchanger design on heat pump performance based on partial load operating conditions. 3-D numerical analysis was conducted to calculate face velocity profiles for each outdoor heat exchanger design (rectangular, cylindrical, and trapezoidal) in 10 different operating conditions. Heat exchanger circuits were modified considering heat exchanger face velocity distributions, and seasonal heat pump performances were calculated with modified heat exchanger design. The maximum seasonal performance enhancement of 7.07% was achieved with a modified heat exchanger design. Air-side flow maldistribution could affect significantly refrigerant path design and heat exchanger performance as well as system performance. The analysis results also revealed that smaller refrigerant circuits at the upper part of the heat exchanger interacting with higher air velocity could further enhance the annual system performance. (C) 2020 Elsevier Ltd. All rights reserved. | Ishaque, Shehryar; Siddiqui, Md Irfanul Haque; Kim, Man-Hoe | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea; King Saud Univ, Dept Mech Engn, Riyadh, Saudi Arabia | ; SIDDIQUI, MD IRFANUL HAQUE/W-6716-2018 | 57212480549; 56704356500; 55686310000 | manhoe.kim@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 151 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.584 | 6.3 | 1.3 | 2025-06-25 | 29 | 30 | Heat exchanger design; CFD; Face velocity profile; Heat pump; Seasonal performance | FLOW MALDISTRIBUTION; AIR-FLOW; HYDRAULIC PERFORMANCE; TUBE; IMPROVEMENT; OPTIMIZATION; ARRANGEMENT; CONDENSERS; MODEL; ALGORITHM | CFD; Face velocity profile; Heat exchanger design; Heat pump; Seasonal performance | Air; Computational fluid dynamics; Pumps; Refrigerants; Velocity; Velocity distribution; 3-D numerical analysis; Different operating conditions; Face velocity; Flow maldistribution; Heat exchanger design; Heat exchanger performance; Heat pumps; Seasonal performance; Heat pump systems | English | 2020 | 2020-04 | 10.1016/j.ijheatmasstransfer.2020.119404 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Efficacy of Androgen Deprivation Therapy in Patients with Metastatic Castration-Resistant Prostate Cancer Receiving Docetaxel-Based Chemotherapy | Purpose: The purpose of this study was to determine the comparative effectiveness of androgen deprivation therapy (ADI) combined with docetaxel (DTX)-based chemotherapy in Korean and Japanese castration-resistant prostate cancer (CRPC) patient cohorts. Materials and Methods: Metastatic CRPC patients who underwent more than three DTX-based chemotherapy cycles in Korea and Japan between 2002 and 2017 were retrospectively analyzed and divided into the DTX-only (DTX, n=30) and combination (DTX+ADT, n=46) groups. Progression free survival (PFS) was calculated as the time from the start of chemotherapy to the occurrence of either disease progression (prostate-specific antigen [PSA] progression or radiographic progression) or death. The primary end point was PFS and the secondary end point was overall survival (OS). Results: In the DTX and DTX+ADT groups, the median PFS was 6.0 and 11.0 months (log-rank p=0.053). The multivariate Cox regression analysis revealed that the significant predicting factors of PFS were ADT administration (hazard ratio [HR], 0.478; 95% confidence interval [CI], 0.284-0.804; p=0.005) and number of DTX-based chemotherapy cycles (FIR, 0.934; 95% CI, 0.899-0.970; p<0.001). In the DTX and DTX+ADT groups, the median OS was 16.0 and 19.5 months (log-rank p=0.825). Through multiple Cox regression analysis, we found that the significant predicting factors of OS were the PSA nadir level (HR, 1.001; 95% CI, 1.000-1.002; p<0.001) and number of DTX-based chemotherapy cycles (HR, 0.932; 95% CI, 0.876 0.991; p=0.024). Conclusions: Concurrent DTX-based chemotherapy and ADT may be beneficial compared with DTX-based chemotherapy alone in chemotherapy-naive metastatic CRPC patients in terms of the PFS, but not the OS. | Min, Kyungchan; Chung, Jae Wook; Ha, Yun-Sok; Lee, Jun Nyung; Kim, Bum Soo; Kim, Hyun Tae; Kim, Tae-Hwan; Yoo, Eun Sang; Kwon, Tae Gyun; Chung, Sung Kwang; Tanaka, Masatoshi; Egawa, Shin; Kimura, Takahiro; Choi, Seock Hwan | Kyungpook Natl Univ, Dept Urol, Chilgok Hosp, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Urol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Urol, 680 Gukchaebosang Ro, Daegu 41944, South Korea; Jikei Univ, Dept Urol, Sch Med, Tokyo, Japan | Kim, Soo-Yeon/ADR-9663-2022; Kim, Tae/B-9921-2013; KIMURA, Takahiro/AFT-2471-2022 | 57876746900; 35204798500; 35487226400; 16301364600; 57202817150; 55739531300; 57797823600; 7006609239; 15073765400; 35200555500; 57218378774; 34769786700; 57208487213; 9742645500 | skhwan@gmail.com; | WORLD JOURNAL OF MENS HEALTH | WORLD J MENS HEALTH | 2287-4208 | 2287-4690 | 38 | 2 | SCIE | ANDROLOGY;UROLOGY & NEPHROLOGY | 2020 | 5.4 | 6.3 | 0.8 | 2025-06-25 | 8 | 8 | Antineoplastic hormonal drugs; Docetaxel; Progression-free survival; Prostate cancer | RADICAL PROSTATECTOMY; TESTOSTERONE; SUPPRESSION; IMMEDIATE; SURVIVAL; MEN; MITOXANTRONE; PREDNISONE; MECHANISMS; TRIALS | Antineoplastic hormonal drugs; Docetaxel; Progression-free survival; Prostate cancer | antiandrogen; docetaxel; gonadorelin agonist; prednisolone; prostate specific antigen; aged; androgen deprivation therapy; Article; cancer chemotherapy; cancer staging; castration resistant prostate cancer; cohort analysis; comparative effectiveness; comparative study; drug efficacy; Gleason score; human; Japan; Korea; major clinical study; male; multicenter study; overall survival; progression free survival; response evaluation criteria in solid tumors; retrospective study; tumor volume | English | 2020 | 2020-04 | 10.5534/wjmh.190029 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Influence of inlet vorticity and aspect ratio on axis-switching and mixing characteristics of heated rectangular jets | To investigate interactive characteristics between the inlet condition and axis-switching phenomenon, heated rectangular jets are numerically investigated for seven aspect ratios (AR = 1.0 - 6.0) with three jet temperatures of 300, 500, and 1000 K. The corresponding Reynolds number is 11,400 - 21,000. To examine the relative importance of omega(theta) and omega(x) on axis-switching, seven inlets are obtained by an inflow generator. For the flows of nozzle part, various geometry-driven and turbulence-driven vortices are observed. It is shown that the rotational directions of turbulence-driven vortices have the rotational direction hindering the axis-switching flow. By using the crossover location of the jet half-widths and the mixing length, the axis-switching condition depending on AR and jet temperature is explained. The crossover location is changed to the omega(x)-variation, which is approximately eight times as sensitive as the omega(theta)-variation. Based on the results of AR and temperature changes, the strong influence on axis-switching flow and mixing is confirmed for the omega(x)-change. Also, the heat transfer effect on mixing enhancement becomes strong for the weak axis-switching condition. As AR increases, the mixing performance decreases, but mixing enhancement of the axis-switching flow is confirmed for AR >= 4. Finally, to explain the omega(x)-variation related to the axis-switching mechanism, the omega(x) transport equations are analyzed by three terms of the Prandtl's first kind and the baroclinic torque. The roles of the vortex stretching and baroclinic torque terms are analyzed for the positive effect of the omega(x)-variation on the axis-switching phenomenon. (C) 2020 Elsevier Ltd. All rights reserved. | Kim, Won Hyun; Park, Tae Seon | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea | 55360608000; 7401801892 | tsparkjp@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 155 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.584 | 6.3 | 0.43 | 2025-06-25 | 6 | 6 | Heated rectangular jet; Inflow condition; Axis switching; Aspect ratio; Vortices; Mixing enhancement | NEAR-FIELD; MEAN FLOW; ENTRAINMENT; TURBULENCE; DYNAMICS | Aspect ratio; Axis switching; Heated rectangular jet; Inflow condition; Mixing enhancement; Vortices | Aspect ratio; Heat transfer; Mixing; Reynolds number; Turbulence; Vortex flow; Baroclinic torques; Heat transfer effects; Mixing characteristics; Mixing enhancement; Mixing performance; Rotational directions; Temperature changes; Transport equation; Switching | English | 2020 | 2020-07 | 10.1016/j.ijheatmasstransfer.2020.119813 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal | In spintronics, two-dimensional van der Waals crystals constitute a most promising material class for long-distance spin transport or effective spin manipulation at room temperature. To realize all-vdW-material-based spintronic devices, however, vdW materials with itinerant ferromagnetism at room temperature are needed for spin current generation and thereby serve as an effective spin source. We report theoretical design and experimental realization of a iron-based vdW material, Fe4GeTe2, showing a nearly room temperature ferromagnetic order, together with a large magnetization and high conductivity. These properties are well retained even in cleaved crystals down to seven layers, with notable improvement in perpendicular magnetic anisotropy. Our findings highlight Fe4GeTe2 and its nanometer-thick crystals as a promising candidate for spin source operation at nearly room temperature and hold promise to further increase T-c in vdW ferromagnets by theory-guided material discovery. | Seo, Junho; Kim, Duck Young; An, Eun Su; Kim, Kyoo; Kim, Gi-Yeop; Hwang, Soo-Yoon; Kim, Dong Wook; Jang, Bo Gyu; Kim, Heejung; Eom, Gyeongsik; Seo, Seung Young; Stania, Roland; Muntwiler, Matthias; Lee, Jinwon; Watanabe, Kenji; Taniguchi, Takashi; Jo, Youn Jung; Lee, Jieun; Min, Byung Il; Jo, Moon Ho; Yeom, Han Woong; Choi, Si-Young; Shim, Ji Hoon; Kim, Jun Sung | Inst for Basic Sci Korea, Ctr Artificial Low Dimens Elect Syst, Pohang 37673, South Korea; Pohang Univ Sci & Technol, Dept Phys, Pohang 37673, South Korea; Ctr High Pressure Sci & Technol Adv Res, Shanghai, Peoples R China; Pohang Univ Sci & Technol, Max Planck POSTECH Hsinchu Ctr Complex Phase Mat, Pohang, South Korea; Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 37673, South Korea; Pohang Univ Sci & Technol, Dept Chem, Pohang 37673, South Korea; Ajou Univ, Dept Phys, Suwon 16499, South Korea; Paul Scherrer Inst, CH-5232 Villigen, Switzerland; Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | ; Muntwiler, Matthias/G-2122-2014; Yeom, Han/AAA-7035-2021; MIN, B. I./U-3364-2017; Jang, Bo Gyu/AFK-3500-2022; Watanabe, Kenji/H-2825-2011; Kim, DuckYoung/K-8387-2013; TANIGUCHI, Takashi/H-2718-2011; Kim, Jun/G-8861-2012; Jo, Moon-Ho/AAI-3153-2020; Lee, Jinwon/KIK-8206-2024 | 57192905801; 58399216000; 57213904680; 57214859153; 55941121600; 57214089777; 57075225100; 56708132800; 56640022300; 57214087050; 57199952580; 56537024600; 6603032434; 57195518334; 57203090873; 55252500400; 13502586500; 57078693300; 7202932118; 16420756300; 7006767855; 56493480000; 7201856274; 50061571500 | youngchoi@postech.ac.kr;jhshim@postech.ac.kr;js.kim@postech.ac.kr; | SCIENCE ADVANCES | SCI ADV | 2375-2548 | 6 | 3 | SCIE | MULTIDISCIPLINARY SCIENCES | 2020 | 14.143 | 6.3 | 6.93 | 2025-06-25 | 248 | 242 | CRYSTAL-STRUCTURES; GRAPHENE; RELAXATION; TELLURIDE | Ferromagnetic materials; Ferromagnetism; Germanium compounds; Iron compounds; Magnetic anisotropy; Spintronics; Tellurium compounds; Experimental realizations; Ferromagnetic orderings; High conductivity; Itinerant ferromagnetism; Perpendicular magnetic anisotropy; Room temperature ferromagnetism; Spintronic device; Theoretical design; Van der Waals forces | English | 2020 | 2020-01 | 10.1126/sciadv.aay8912 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Numerical Simulation of Phase-change Heat Transfer Problems Using Heat Fluxes on Phase Interface Reconstructed by Contour-Based Reconstruction Algorithm | The numerical analysis of phase-change heat transfer is challenging owing to the multiple inherent limitations of solution procedures for a finite-sized mesh system. For instance, the cell face or node point is not coincident with the phase interface, and thermal-fluidic properties, such as viscosity, specific heat, and thermal conductivity, change sharply through the phase interface. In this study, we introduce a new numerical phase-change model that reflects the thermal-fluidic discontinuities through the phase interface more faithfully. The basic solution procedure is same as the one used in the previous models. However, to obtain the phase-change rate, the new model first reconstructs the phase interface shape and calculates the heat fluxes toward both phases by using the temperature data of the region surrounding the reconstructed phase interface. In this study, we first solved one- and two-dimensional Stefan problems, in addition to the bubble-growth problem. In a comparison with the results of a few existing phase-change models, the superiority of the proposed phase-change model was confirmed in terms of solution continuity and computational costs. Next, we solved flow condensation in micro- and mini-channels and quantitatively compared local variations in the quality and heat transfer coefficient with the corresponding experimental and numerical results obtained by other researchers. Our model exhibited superior consistency with the empirical correlation than the Lee model. (C) 2020 Elsevier Ltd. All rights reserved. | Son, Jong Hyeon; Park, Il Seouk | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea | 55156951300; 50262800000 | einstein@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 156 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.584 | 6.3 | 0.69 | 2025-06-25 | 12 | 11 | Phase-change heat transfer; Phase-change model; Stefan problem; Surface phenomenon; Interface reconstruction | MASS-TRANSFER; FILM FLOW; PRESSURE-DROP; CONDENSATION; VOLUME; DYNAMICS; CHANNELS; PIPE; LOOP | Interface reconstruction; Phase–change heat transfer; Phase–change model; Stefan problem; Surface phenomenon | Heat flux; Heat transfer; Specific heat; Thermal conductivity; Computational costs; Empirical correlations; Flow condensation; Heat transfer problems; Inherent limitations; Numerical results; Reconstruction algorithms; Solution procedure; Phase interfaces | English | 2020 | 2020-08 | 10.1016/j.ijheatmasstransfer.2020.119894 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Sweat-Based Noninvasive Skin-Patchable Urea Biosensors with Photonic Interpenetrating Polymer Network Films Integrated into PDMS Chips | A wearable noninvasive biosensor for in situ urea detection and quantification was developed using a urease-immobilized photonic interpenetrating polymer network (IPNurease) film. The photonic IPN film was intertwined with solid-state cholesteric liquid crystals (CLCsolid) and a poly(acrylic acid) (PAA) network on a flexible poly(ethylene terephthalate) substrate adhered to a poly(dimethylsiloxane) (PDMS) chip that was fabricated using an aluminum mold. The presence of urea in the chemical matrix of human sweat red-shifted the reflected color of the photonic IPNurease film, and quantification was achieved by observing the wavelength at the photonic band gap (lambda(PBG)) with a limit of detection of 0.4 mM and a linear range of 0.9-50 mM. The color changes observed in the photonic IPN film were digitalized using the CIE 1931 xy coordinates on a cell phone image, thereby enabling fast, direct diagnosis via a downloadable app. This novel PDMS chip can be expanded for use with other biosensors. | Hussain, Saddam; Park, Soo-young | Kyungpook Natl Univ, Sch Appl Chem Engn, Polymer Nano Mat Lab, Daegu 41566, South Korea | ; park, soo-young/N-3170-2017; Hussain, Saddam/HMO-5050-2023 | 57213261490; 57194041850 | psy@knu.ac.kr; | ACS SENSORS | ACS SENSORS | 2379-3694 | 5 | 12 | SCIE | CHEMISTRY, ANALYTICAL;CHEMISTRY, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2020 | 7.711 | 6.3 | 2.32 | 2025-06-25 | 61 | 61 | photonic crystal; interpenetrating polymer network; flexible; biosensor; urea; cholesteric liquid crystal | SENSOR; ELECTRONICS | biosensor; cholesteric liquid crystal; flexible; interpenetrating polymer network; photonic crystal; urea | Biosensing Techniques; Humans; Photons; Polymers; Sweat; Urea; Biosensors; Chemical detection; Cholesteric liquid crystals; Energy gap; Ethylene; Metabolism; Microchannels; Photonic band gap; Polymer films; Red Shift; Urea; polymer; urea; Color changes; Limit of detection; Poly(dimethylsiloxane) chip; Poly(ethylene terephthalate) substrate; Polyacrylic acids; Reflected colors; Urea biosensors; Urea detection; genetic procedures; human; photon; sweat; Optical films | English | 2020 | 2020-12-24 | 10.1021/acssensors.0c01757 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Trends in end-of-life resource utilization and costs among prostate cancer patients from 2006 to 2015: A nationwide population-based study | Purpose: The purpose of this study was to evaluate end-of-life resource utilization and costs for prostate cancer patients during the last year of life in Korea. Materials and Methods: The study used the National Health Information Database (NHIS-2017-4-031) of the Korean National Health Insurance Service. Healthcare claim data for the years 2002 through 2015 were collected from the Korean National Health Insurance System. Among 83,173 prostate cancer patients, we enrolled 18,419 after excluding 1,082 who never claimed for the last year of life. Results: From 2006 to 2015, there was a 3.2-fold increase the total number of prostate cancer decedents. The average cost of care during the last year of life increased over the 10-year period, from 14,420,000 Korean won to 20,300,000 Korean won, regardless of survival time. The cost of major treatments and medications, other than analgesics, was relatively high. Radiologic tests, opioids, pain control, and rehabilitation costs were relatively low. Multiple regression analysis identified age and living in rural area as negatively associated with prostate cancer care costs, whereas income level and a higher number of comorbidities were positively associated. Conclusions: Expenditure of prostate cancer care during the last year of life varied according to patient characteristics. Average costs increased every year. However, the results suggest underutilization of support services, likely due to lack of alternative accommodation for terminal prostate cancer patients. Further examination of patterns of utilization of healthcare resources will allow policymakers to take a better approach to reducing the burden of prostate cancer care. Copyright © 2020 Korean Society for Sexual Medicine and Andrology | Ha, Yun-Sok; Kim, So-Young; Chung, Jae Il; Choi, Hoon; Kim, Jae Heon; Yu, Ho Song; Cho, In-Chang; Kim, Hyung Joon; Chung, Hyun Chul; Koh, Jun Sung; Lee, Ji Youl; Park, Dong Jin; Kim, Hyun Tae; Yoo, Eun Sang; Kwon, Tae Gyun; Min, Kyungchan; Kim, Wun-Jae; Yun, Seok Joong; Park, Jong-Hyock | Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Public Health and Preventive Medicine, Chungbuk National University Hospital, Cheongju, South Korea; Department of Urology, Inje University Busan Paik Hospital, Busan, South Korea; Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, South Korea; Department of Urology, Soonchunhyang University Seoul Hospital, Seoul, South Korea; Department of Urology, Chonnam National University Medical School, Gwangju, South Korea; Department of Urology, National Police Hospital, Seoul, South Korea; Department of Urology, Konyang University College of Medicine, Daejeon, South Korea; Department of Urology, Yonsei University Wonju College of Medicine, Wonju, South Korea; Department of Urology, Bucheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, South Korea; Department of Urology, Seoul St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea; Department of Urology, Dongguk University School of Medicine, Gyeongju, South Korea; Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, South Korea, Institute of Urotech, South Korea; Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, South Korea; Department of Preventive Medicine, Graduate School of Health Science Business Convergence, Chungbuk National University College of Medicine, Cheongju, South Korea | 35487226400; 57196226833; 57213670565; 57188551032; 7601373772; 22137216800; 37025628100; 57202103629; 56678204100; 8540565700; 57202074202; 57220636322; 55739531300; 7006609239; 15073765400; 57876746900; 8081691400; 16302421300; 57196184587 | jonghyock@chungbuk.ac.kr;sjyun@chungbuk.ac.kr; | World Journal of Men's Health | WORLD J MENS HEALTH | 2287-4208 | 2287-4690 | 38 | SCIE | ANDROLOGY;UROLOGY & NEPHROLOGY | 2020 | 5.4 | 6.3 | 0.2 | 2025-06-25 | 4 | Health care costs; Healthcare utilization; Prostatic neoplasms; Terminal care | analgesic agent; androgen; opiate; administrative claims (health care); adult; age; aged; androgen deprivation therapy; Article; cancer patient; cancer radiotherapy; cancer rehabilitation; cancer surgery; clinical feature; cohort analysis; comorbidity; controlled study; health care cost; health care utilization; hospice care; human; income; Korea; major clinical study; male; multiple regression; population research; prostate cancer; prostatectomy; robot-assisted prostatectomy; rural area; survival time; trend study | English | Final | 2020 | 10.5534/wjmh.200113 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Visualization study on pool boiling critical heat flux under rolling motion | Vapor behavior and critical heat flux (CHF) mechanism under rolling motion were experimentally analyzed in the present study using a rolling platform system. It was observed that the combination of centrifugal and tangential acceleration affected the vapor behavior and occurrence of CHF. When the platform rolled more quickly, CHF occurred earlier, while CHF occurred every time the platform rolled back after reaching its maximum rolling amplitude. Therefore, the observations of vapor behavior focused on the period during which the platform rolled to its maximum rolling amplitude and then rolled back down. When the platform rolled up to its maximum amplitude, the vapor drifted slowly due to the effect of tangential acceleration, which acted in the opposite direction to the platform. On the other hand, as the amount of vapor grew, it readily detached from the heated surface due to the lower centrifugal acceleration, significantly reducing the size and duration of dry patches on the heated surface. When the platform rolled back down, the tangential acceleration pulled the vapor bubbles down because it acted in the same direction as the platform. Consequently, the vapor bubbles pushed against the bubbles, causing them to coalesce and produce larger dry patches on the heated surface. At the same time, the effect of centrifugal acceleration became stronger, which pushed the vapor towards the heated surface, resulting in vapor could not detach easily from the heated surface. This process led to a further increase in the size and duration of dry patches on the surface. When the platform rolled down, more of the heated surface was covered with a vapor layer for a longer time, hindering the fluid from replenishing the surface and triggering CHF. (C) 2020 Elsevier Ltd. All rights reserved. | Tanjung, Elvira F.; Jo, Daeseong | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 702701, South Korea | 57202612180; 16424303000 | djo@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 153 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.584 | 6.3 | 0.69 | 2025-06-25 | 10 | 11 | Critical heat flux mechanism; Rolling motion; Additional acceleration; Pool boiling | OSCILLATING ACCELERATION FIELD; BUBBLE BEHAVIORS; MARINE REACTOR; FLOW; WATER; MECHANISM; CHANNEL; CHF | Additional acceleration; Critical heat flux mechanism; Pool boiling; Rolling motion | Acceleration; Centrifugation; Centrifugal acceleration; Critical heat flux(CHF); Heated surfaces; Maximum amplitude; Platform systems; Pool boiling; Rolling motion; Vapor layers; Heat flux | English | 2020 | 2020-06 | 10.1016/j.ijheatmasstransfer.2020.119620 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Editorial Material | The Holey Grail of Transparent Electronics | For decades, researchers have attempted to discover transparent conductors that transport holes. A robust p-type material would usher in a new era of technologies. Many reports have failed to live up to their hype; however, the screening by Williamson et al. has predicted [Cu2S2][Ba3Sc2O5] to support a conductivity exceeding 2,000 S cm(-1). | Walsh, Aron; Park, Ji-Sang | Imperial Coll London, Dept Mat, London SW7 2AZ, England; Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Walsh, Aron/A-7843-2008; Park, Ji-Sang/F-9944-2010 | 35315151400; 36671796300 | a.walsh@imperial.ac.uk;jsparkphys@knu.ac.kr; | MATTER | MATTER-US | 2590-2393 | 2590-2385 | 3 | 3 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2020 | 15.589 | 6.4 | 0.43 | 2025-06-25 | 2 | 2 | OXIDES | P-type; Transparent conductors; Transparent electronics | English | 2020 | 2020-09-02 | 10.1016/j.matt.2020.08.008 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Degree counting for Toda system with simple singularity: One point blow up | In this paper, we study the degree counting formula of the rank two Toda system with simple singular source when rho(1) is an element of(0, 4 pi) boolean OR(4 pi, 8 pi) and rho(2) is not an element of 4 pi N. The key step is to derive the degree formula of the shadow system, which arises from the bubbling solutions as rho(1) tends to 4 pi. In order to compute the topological degree of the shadow system, we need to find some suitable deformation. During this deformation, we shall deal with new difficulty arising from the phenomenon: blow up does not necessarily imply concentration of mass. This phenomenon occurs due to the collapsing of singularities. This is a continuation of the previous work [25]. (C) 2019 Elsevier Inc. All rights reserved. | Lee, Youngae; Lin, Chang-Shou; Yang, Wen; Zhang, Lei | Kyungpook Natl Univ, Teachers Coll, Dept Math Educ, Daegu, South Korea; Natl Taiwan Univ, Ctr Adv Study Theoret Sci, Taida Inst Math Sci, Taipei 106, Taiwan; Chinese Acad Sci, Wuhan Inst Phys & Math, POB 71010, Wuhan 430071, Hubei, Peoples R China; Univ Florida, Dept Math, 358 Little Hall,POB 118105, Gainesville, FL 32611 USA | ; Lee, Youngae/GPG-2128-2022 | 58239646700; 9942499800; 57195239452; 57203348009 | youngaelee@knu.ac.kr;cslin@math.ntu.edu.tw;wyang@wipm.ac.cn;leizhang@ufl.edu; | JOURNAL OF DIFFERENTIAL EQUATIONS | J DIFFER EQUATIONS | 0022-0396 | 1090-2732 | 268 | 5 | SCIE | MATHEMATICS | 2020 | 2.43 | 6.5 | 1.33 | 2025-06-25 | 11 | 11 | Toda system; Topological degree; Bubbling solutions; Shadow system | MEAN-FIELD EQUATIONS; CHERN-SIMONS MODEL; BUBBLING SOLUTIONS; ANALYTIC ASPECTS; LIOUVILLE TYPE; EXISTENCE; CLASSIFICATION; INEQUALITY; CURVATURE; BEHAVIOR | Bubbling solutions; Shadow system; Toda system; Topological degree | English | 2020 | 2020-02-15 | 10.1016/j.jde.2019.09.016 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Impact of diabetes mellitus on mortality in patients with acute heart failure: a prospective cohort study | Background Although more than one-third of the patients with acute heart failure (AHF) have diabetes mellitus (DM), it is unclear if DM has an adverse impact on clinical outcomes. This study compared the outcomes in patients hospitalized for AHF stratified by DM and left ventricular ejection fraction (LVEF). Methods The Korean Acute Heart Failure registry prospectively enrolled and followed 5625 patients from March 2011 to February 2019. The primary endpoints were in-hospital and overall all-cause mortality. We evaluated the impact of DM on these endpoints according to HF subtypes and glycemic control. Results During a median follow-up of 3.5 years, there were 235 (4.4%) in-hospital mortalities and 2500 (46.3%) overall mortalities. DM was significantly associated with increased overall mortality after adjusting for potential confounders (adjusted hazard ratio [HR] 1.11, 95% confidence interval [CI] 1.03-1.22). In the subgroup analysis, DM was associated with higher a risk of overall mortality in heart failure with reduced ejection fraction (HFrEF) only (adjusted HR 1.14, 95% CI 1.02-1.27). Inadequate glycemic control (HbA1c >= 7.0% within 1 year after discharge) was significantly associated with a higher risk of overall mortality compared with adequate glycemic control (HbA1c < 7.0%) (44.0% vs. 36.8%, log-rank p = 0.016). Conclusions DM is associated with a higher risk of overall mortality in AHF, especially HFrEF. Well-controlled diabetes (HbA1c < 7.0%) is associated with a lower risk of overall mortality compared to uncontrolled diabetes. Trial registration ClinicalTrial.gov, NCT01389843. Registered July 6, 2011. | Kong, Min Gyu; Jang, Se Yong; Jang, Jieun; Cho, Hyun-Jai; Lee, Sangjun; Lee, Sang Eun; Kim, Kye Hun; Yoo, Byung-Su; Kang, Seok-Min; Baek, Sang Hong; Choi, Dong-Ju; Jeon, Eun-Seok; Kim, Jae-Joong; Cho, Myeong-Chan; Chae, Shung Chull; Oh, Byung-Hee; Lim, Soo; Park, Sue K.; Lee, Hae-Young | Soon Chun Hyang Univ Hosp, Dept Internal Med, Bucheon, South Korea; Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea; Seoul Natl Univ, Dept Prevent Med, Coll Med, Seoul, South Korea; Seoul Natl Univ, Dept Biomed Sci, Grad Sch, Seoul, South Korea; Seoul Natl Univ, Canc Res Inst, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea; Asan Med Ctr, Dept Internal Med, Seoul, South Korea; Chonnam Natl Univ, Heart Res Ctr, Gwangju, South Korea; Yonsei Univ, Dept Internal Med, Wonju Coll Med, Wonju, South Korea; Yonsei Univ, Dept Internal Med, Coll Med, Seoul, South Korea; Catholic Univ Korea, Dept Internal Med, Seoul, South Korea; Seoul Natl Univ, Seoul Natl Univ Coll Med, Dept Internal Med, Bundang Hosp, Seongnam, South Korea; Sungkyunkwan Univ, Dept Internal Med, Sch Med, Seoul, South Korea; Chungbuk Natl Univ, Dept Internal Med, Coll Med, Cheongju, South Korea; Seoul Natl Univ, Dept Internal Med, Div Cardiol, Coll Med, 101 Daehak Ro, Seoul 03080, South Korea | ; choi, jo/O-5940-2014; Choi, Dong-Ju/J-5686-2012; Lim, Soo/AAU-8107-2020; Oh, Byung-Hee/G-9875-2011; Jeong, Gi/AAB-2830-2021; LEE, JI/L-6920-2013 | 57204420636; 57207977889; 57198251721; 35285421400; 57213176489; 57207065107; 56150430800; 7102851884; 7405685375; 7201371594; 35274349200; 7004279641; 36065764100; 7401727518; 7101962036; 57216293873; 26660890200; 8085325400; 56151235500 | hylee612@snu.ac.kr; | CARDIOVASCULAR DIABETOLOGY | CARDIOVASC DIABETOL | 1475-2840 | 19 | 1 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS;ENDOCRINOLOGY & METABOLISM | 2020 | 9.951 | 6.5 | 0.98 | 2025-06-25 | 29 | 29 | Diabetes mellitus; Acute heart failure; Left ventricular ejection fraction; Glycemic control | PRESERVED EJECTION FRACTION; CLINICAL CHARACTERISTICS; POSTDISCHARGE OUTCOMES; ELDERLY-PATIENTS; HOSPITALIZATIONS; ASSOCIATION; PREDICTORS; ADMISSION; GLUCOSE; TRIAL | Acute heart failure; Diabetes mellitus; Glycemic control; Left ventricular ejection fraction | Acute Disease; Aged; Aged, 80 and over; Biomarkers; Blood Glucose; Diabetes Mellitus; Female; Glycated Hemoglobin A; Heart Failure; Hospital Mortality; Humans; Hypoglycemic Agents; Male; Middle Aged; Prognosis; Prospective Studies; Registries; Republic of Korea; Risk Assessment; Risk Factors; Stroke Volume; Time Factors; Ventricular Function, Left; inotropic agent; antidiabetic agent; biological marker; glycosylated hemoglobin; hemoglobin A1c protein, human; acute heart failure; age; aged; all cause mortality; Article; cardiovascular mortality; cerebrovascular disease; chronic kidney failure; clinical evaluation; cohort analysis; controlled study; diabetes mellitus; disease association; female; glycemic control; heart failure with reduced ejection fraction; heart left ventricle ejection fraction; hospital mortality; human; hypertension; ischemic heart disease; major clinical study; male; mortality risk; obesity; observational study; prospective study; risk assessment; acute disease; blood; clinical trial; comparative study; diabetes mellitus; drug effect; epidemiology; glucose blood level; heart failure; heart left ventricle function; heart stroke volume; metabolism; middle aged; mortality; multicenter study; pathophysiology; prognosis; register; risk factor; South Korea; time factor; very elderly | English | 2020 | 2020-05-02 | 10.1186/s12933-020-01026-3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Liouville type result and long time behavior for Fisher-KPP equation with sign-changing and decaying potentials | This paper concerns the Liouville type result for the general semilinear elliptic equation a(ij)(x)partial derivative(ij)u(x) + K-qi(x)partial derivative(i)u(x) + f (x, u(x)) = 0 a.e. inR(N), (S) where f is of the KPP-monostable nonlinearity, as a continuation of the previous works of the second author [31,32]. The novelty of this work is that we allow f(s)(x, 0) to be sign-changing and to decay fast up to a Hardy potential near infinity. First, we introduce a weighted generalized principal eigenvalue and use it to characterize the Liouville type result for Eq.(S) that was proposed by H. Berestycki. Secondly, if (a(ij)) is the identity matrix and q is a compactly supported divergence-free vector field, we find a condition that Eq.(S) admits no positive solution for K > K* ,where K* is a certain positive threshold. To achieve this, we derive some new techniques, thanks to the recent results on the principal spectral theory for elliptic operators [14], to overcome some fundamental difficulties arising from the lack of compactness in the domain. This extends a nice result of Berestycki-Hamel-Nadirashvili [5] on the limit of eigenvalues with large drift to the case without periodic condition. Lastly, the well-posedness and long time behavior of the evolution equation corresponding to (S) are further investigated. The main tool of our work is based on the maximum principle for elliptic and parabolic equations however it is far from being obvious to see if the comparison principle for (S) holds or not. (C) 2020 Elsevier Inc. All rights reserved. | Kim, Seonghak; Hoang-Hung Vo | Kyungpook Natl Univ, Coll Nat Sci, Dept Math, Daegu 41566, South Korea; Inst Computat Sci & Technol, SBI Bldg, Quang Trung Software Cit, Vietnam; Saigon Univ, Fac Math & Applicat, 273 An Duong Vuong St,Ward 3,Dist 5, Ho Chi Minh City, Vietnam | Vo, Hoang-Hung/D-8744-2019 | 56489490600; 56684716000 | shkim17@knu.ac.kr;vhhung@sgu.edu.vn; | JOURNAL OF DIFFERENTIAL EQUATIONS | J DIFFER EQUATIONS | 0022-0396 | 1090-2732 | 268 | 10 | SCIE | MATHEMATICS | 2020 | 2.43 | 6.5 | 0 | 2025-06-25 | 1 | 1 | Weighted parabolic equation; KPP-monostable nonlinearity; Generalized eigenvalue; Lack of compactness | INDEFINITE WEIGHT FUNCTION; PRINCIPAL EIGENVALUES; POPULATION-DYNAMICS; ELLIPTIC-EQUATIONS; MAXIMUM PRINCIPLE; GROUND-STATES; EXISTENCE; PROPAGATION; DIFFUSION; SPEED | Generalized eigenvalue; KPP-monostable nonlinearity; Lack of compactness; Weighted parabolic equation | English | 2020 | 2020-05-05 | 10.1016/j.jde.2020.02.015 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Local uniqueness and non-degeneracy of blow up solutions of mean field equations with singular data | We are concerned with the mean field equation with singular data on bounded domains. By assuming a singular point to be a critical point of the 1-vortex Kirchhoff-Routh function, we prove local uniqueness and non-degeneracy of bubbling solutions blowing up at a singular point. The proof is based on sharp estimates for bubbling solutions of singular mean field equations and a suitably defined Pohozaev-type identity. (C) 2020 Elsevier Inc. All rights reserved. | Bartolucci, Daniele; Jevnikar, Aleks; Lee, Youngae; Yang, Wen | Univ Roma Tor Vergata, Dept Math, Via Ric Sci 1, I-00133 Rome, Italy; Univ Udine, Dept Math Comp Sci & Phys, Via Sci 206, I-33100 Udine, Italy; Kyungpook Natl Univ, Teachers Coll, Dept Math Educ, Daegu, South Korea; Chinese Acad Sci, Wuhan Inst Phys & Math, POB 71010, Wuhan 430071, Peoples R China | Lee, Youngae/GPG-2128-2022 | 6602878087; 55867225600; 58239646700; 57195239452 | bartoluc@mat.uniroma2.it;aleks.jevnikar@uniud.it;youngaelee@knu.ac.kr;wyang@wipm.ac.cn; | JOURNAL OF DIFFERENTIAL EQUATIONS | J DIFFER EQUATIONS | 0022-0396 | 1090-2732 | 269 | 3 | SCIE | MATHEMATICS | 2020 | 2.43 | 6.5 | 0 | 2025-06-25 | 0 | 0 | Mean field equations; Uniqueness; Non-degeneracy; Blow up solutions; Singular data | LIOUVILLE TYPE EQUATIONS; EXISTENCE; INEQUALITY; MULTIVORTICES; CURVATURE; SURFACES; BEHAVIOR | Blow up solutions; Mean field equations; Non-degeneracy; Singular data; Uniqueness | English | 2020 | 2020-07-15 | 10.1016/j.jde.2020.01.030 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | A green approach to the fabrication of a TiO2/NiAl-LDH core-shell hybrid photocatalyst for efficient and selective solar-powered reduction of CO2 into value-added fuels | Exploring promising photocatalysts with high efficiency and selectivity for CO2 reduction holds paramount significance for resolving the energy crisis and various environmental problems associated with traditional fossil fuels. Here, we rationally design a core-shell hybrid photocatalyst in which anatase TiO2 hollow spheres serve as the core component and NiAl layered double hydroxide (LDH) nanoflakes serve as the shell component. The synthesis of the TiO2/LDH core-shell hybrid involves hydrothermal and calcination treatments without the use of environmentally toxic solvents or surfactants. Assorted experimental results demonstrate that the TiO2/LDH core-shell hybrid exhibits a strong light-harvesting ability, large surface area, porous structure, and extraordinary CO2 adsorption capability. In addition, the unique core-shell geometric structure of the TiO2/LDH hybrid results in a large interfacial contact area and thus provides a broader platform for efficient charge transfer. Benefiting from these structural and compositional features, the TiO2/LDH core-shell hybrid exhibits remarkable CO2 reduction activity, high selectivity (against water reduction), and more importantly, good stability during consecutive test cycles. Therefore, this work offers a promising approach to the rational design and fabrication of core-shell hybrid photocatalysts with potential applications in solar energy conversion and environmental protection. | Jo, Wan-Kuen; Moru, Satyanarayana; Tonda, Surendar | Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Iowa State Univ, Dept Elect & Comp Engn, Coover Hall,Osborn Dr, Ames, IA 50011 USA | MORU, SATYANARAYANA/AAF-3189-2021; Tonda, Surendar/AAO-3358-2020; Jo, Wan/AAO-5329-2020; Moru, Satyanarayana/AAF-3189-2021 | 7103322277; 58562229700; 56114866900 | surendar.t86@gmail.com; | JOURNAL OF MATERIALS CHEMISTRY A | J MATER CHEM A | 2050-7488 | 2050-7496 | 8 | 16 | SCIE | CHEMISTRY, PHYSICAL;ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2020 | 12.732 | 6.6 | 2.74 | 2025-06-25 | 86 | 86 | HOLLOW SPHERES; CARBON-DIOXIDE; PERFORMANCE; HETEROJUNCTION; MICROSPHERES; CONVERSION; NANOSHEETS; METAL; WATER; H2O | Carbon dioxide; Charge transfer; Energy conversion; Energy policy; Environmental protection; Fabrication; Fossil fuels; Green manufacturing; Hydrothermal synthesis; Solar energy; Titanium dioxide; Calcination treatment; Compositional features; Core-shell hybrids; Environmental problems; Geometric structure; Interfacial contact; Large surface area; Ni-Al layered double hydroxides; Shells (structures) | English | 2020 | 2020-04-28 | 10.1039/d0ta00104j | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Atomically tunable photo-assisted electrochemical oxidation process design for the decoration of ultimate-thin CuO on Cu2O photocathodes and their enhanced photoelectrochemical performances | A representative method of forming CuO thin films on Cu2O photoabsorbers is simple annealing oxidation at high temperature in a controlled oxygen atmosphere, but the typical oxidation process is very quick and irregular, resulting in a high density of defect sites. To maximize the beneficial effect of CuO/Cu2O heterojunction photocathodes, novel criteria for CuO preparation have been suggested: (1) in-plane epitaxy with Cu2O, (2) atomic layer-by-layer growth, (3) ultimate-thin and completely conformal coating, and (4) minimized internal defects. As a novel strategy to achieve these criteria, we propose a photo-assisted electrochemical oxidation (PAEO) method, where the Cu2O surface is precisely phase-changed into the ultimate-thin CuO layer with a thickness of 4 nm via fine thickness control using photoenergy and an external potential at room temperature. The produced CuO crystals are grown on Cu2O without generating structural defects by accommodating the epitaxial relationship below the critical thickness. From static and dynamic (photo)electrochemical analyses, the decoration of ultimate-thin CuO offers high electrical conductivity and fast charge transport, guarantees sufficient open-circuit potential (OCP), and substantially retains the initial OCP value by minimizing the contribution of recombination loss. Finally, the PAEO-treated photocathodes exhibit an excellent photocurrent density of 15 mA cm(-2) (approaching the theoretical maximum current) and 8.3 mA cm(-2) at 0 V vs. RHE in electrolytes with and without scavenger hydrogen peroxide (H2O2), respectively, as well as a OCP of 0.78 V, even with the use of suboptimal Al-doped ZnO buffer layers. | Kim, Dong Su; Kim, Young Been; Jung, Sung Hyeon; Deshpande, Nishad G.; Choi, Ji Hoon; Lee, Ho Seong; Cho, Hyung Koun | Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, 2066,Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, 80,Daehak Ro, Daegu 41566, South Korea | ; Cho, Hyung/P-2007-2017; Cho, Hyung Koun/P-2007-2017; 김, 동수/IAN-1770-2023; Deshpande, Nishad/D-1021-2011 | 57209168253; 57193847828; 57200660299; 56096311600; 57218377818; 55706810400; 35236454300 | chohk@skku.edu; | JOURNAL OF MATERIALS CHEMISTRY A | J MATER CHEM A | 2050-7488 | 2050-7496 | 8 | 41 | SCIE | CHEMISTRY, PHYSICAL;ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2020 | 12.732 | 6.6 | 0.8 | 2025-06-25 | 24 | 22 | NANOWIRE ARRAYS; WATER; OXIDE; HETEROJUNCTION; LAYER; FILMS; PHOTOCATALYST; STABILITY; DEPOSITION; COMPOSITE | Buffer layers; Copper oxides; Electrochemical oxidation; Electrochemistry; Field emission cathodes; Heterojunctions; II-VI semiconductors; Image enhancement; Oxide minerals; Photocathodes; Photocurrents; Zinc oxide; Annealing oxidation; Conformal coatings; Electrochemical analysis; Epitaxial relationships; High electrical conductivity; Open circuit potential; Photocurrent density; Photoelectrochemical performance; Aluminum compounds | English | 2020 | 2020-11-07 | 10.1039/d0ta06010k | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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