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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 | ABAQUS modeling for post-tensioned reinforced concrete beams | Finite element analysis (FEA) using ABAQUS software was performed to investigate the behavior of post-tensioned concrete beams. This study is an attempt to examine the concrete damage behavior using a concrete damaged plasticity (CDP) model in ABAQUS, as well as the effect of an external post-tensioning (EPT) steel rod system. Concrete is a well-used material in many architectural and civil structures, with behavior exhibiting different characteristics in compression and tension; it also shows an inelastic-nonlinear behavior. These properties of concrete make modeling or simulation of the material difficult. In reinforced concrete, there is particular difficulty with respect to the bond-slip relationship between concrete and steel. However, in this paper the finite element analysis for concrete beams through ABAQUS simulation has been carried out with some assumptions, including perfect bond of steel and concrete and the CDP model for concrete property. In comparing analysis and experimental results, the simulated tensile deformations are similar to actual crack patterns in tests and the analytical responses such as strength, deflection, and stress of external rods are in good agreement with the measured responses. | Lee, Swoo-Heon; Abolmaali, Ali; Shin, Kyung-Jae; Lee, Hee-Du | Kyungpook Natl Univ, Sch Convergence & Fus Syst Engn, 2559 Gyeongsang Daero, Sangju Si 37224, Gyeongsangbuk D, South Korea; Univ Texas Arlington, Dept Civil Engn, 416 Yates St,Box 19308, Arlington, TX 76019 USA; Kyungpook Natl Univ, Sch Architectural Engn, 80 Daehak Ro, Daegu 41566, South Korea | Lee, Swoo-Heon/AGO-7501-2022 | 34869937600; 6505978616; 14039501000; 53865180300 | finksnow@knu.ac.kr;abolmaali@uta.edu;shin@knu.ac.kr;lhdza@knu.ac.kr; | JOURNAL OF BUILDING ENGINEERING | J BUILD ENG | 2352-7102 | 30 | SCIE | CONSTRUCTION & BUILDING TECHNOLOGY;ENGINEERING, CIVIL | 2020 | 5.318 | 9.1 | 5.41 | 2025-06-25 | 94 | 109 | ABAQUS; Finite element analysis (FEA); Externally post-tensioning (EPT); Reinforced concrete (RC) beam; Concrete damaged plasticity (CDP) | FLEXURAL BEHAVIOR; STUB COLUMNS; STEEL; SURFACE | ABAQUS; Concrete damaged plasticity (CDP); Externally post-tensioning (EPT); Finite element analysis (FEA); Reinforced concrete (RC) beam | ABAQUS; Architectural Concrete; Concrete beams and girders; Finite element method; Plasticity; Bond-slip relationship; Compression and tension; Damaged plasticities; External post-tensioning; Post-tensioned concrete; Posttensioning; Properties of concretes; Reinforced concrete beams; Reinforced concrete | English | 2020 | 2020-07 | 10.1016/j.jobe.2020.101273 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Intraocular Pressure Monitoring Following Islet Transplantation to the Anterior Chamber of the Eye | Intraocular islet transplantation was investigated as a new procedure to treat diabetes. The development of this procedure requires close monitoring of the function of both eye and islet graft. We developed a soft, smart contact lens to monitor the intraocular pressure and applied this for noninvasive monitoring in association with the intraocular islet transplantation in diabetes. A strain sensor inside the lens can detect detailed changes in intraocular pressure by focusing the strain only in the desired, selective area of the contact lens. In addition, this smart contact lens can transmit the real-time value of the intraocular pressure wirelessly using an antenna. The wireless measurement of intraocular pressure that was obtained using this contact lens had a high correlation with the intraocular pressure measured by a rebound tonometer, thereby proving the good accuracy of the contact lens sensor. In the initial period, a slight elevation of intraocular pressure was observed, but the pressure returned to normal in the initial period after the transplantation. This type of monitoring will provide important information on potential changes in the intraocular pressure associated with the transplantation procedure, and it enables appropriate clinical safety steps to be taken, if needed. | Kim, Joohee; Kim, Jaeyoon; Ku, Minjae; Cha, Eunkyung; Ju, Seoyoung; Park, Won Yeong; Kim, Ki Hean; Kim, Dai Woo; Berggren, Per-Olof; Park, Jang-Ung | Yonsei Univ, Nano Sci Technol Inst, Dept Mat Sci & Engn, Seoul 03722, South Korea; Yonsei Univ, Ctr Nanomed, Inst Basic Sci, Seoul 03722, South Korea; Pohang Univ Sci & Technol, Div Integrat Biosci & Biotechnol, Pohang 37673, Gyeongbuk, South Korea; Pohang Univ Sci & Technol, Dept Mech Engn, Pohang 37673, Gyeongbuk, South Korea; Kyungpook Natl Univ, Sch Med, Dept Ophthalmol, Daegu 41944, South Korea; Karolinska Univ Hosp L1, Rolf Luft Res Ctr Diabet & Endocrinol, Karolinska Inst, SE-17176 Stockholm, Sweden | Park, Jang-Ung/E-9224-2010; Kim, Soon Hee/GXF-6736-2022 | 57208530366; 54959561100; 57212002474; 57212005786; 57212005439; 57210463062; 34770690200; 57095192800; 7101706643; 11739935500 | Per-Olof.Berggren@ki.se;jang-ung@yonsei.ac.kr; | NANO LETTERS | NANO LETT | 1530-6984 | 1530-6992 | 20 | 3 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2020 | 11.189 | 9.1 | 2.94 | 2025-06-25 | 67 | 70 | Islet transplantation; diabetes; intraocular pressure; eye monitoring system; smart contact lens | SENSOR; SYSTEMS; LENS | diabetes; eye monitoring system; intraocular pressure; Islet transplantation; smart contact lens | Animals; Anterior Chamber; Contact Lenses, Hydrophilic; Intraocular Pressure; Islets of Langerhans Transplantation; Monitoring, Physiologic; Rats; Rats, Inbred Lew; Antennas; Contact lenses; Medical problems; Anterior chamber; Contact lens sensors; Intra ocular pressure; Islet transplantation; Monitoring system; Non-invasive monitoring; Real time values; Wireless measurements; animal; anterior eye chamber; hydrophilic contact lens; intraocular pressure; Lewis rat; pancreas islet transplantation; pathophysiology; physiologic monitoring; rat; surgery; Lens antennas | English | 2020 | 2020-03-11 | 10.1021/acs.nanolett.9b03605 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Live Cell Electron Microscopy Using Graphene Veils | As a promising tool over the optical resolution limits, liquid electron microscopy is practically utilized to visualize the structural information on wet biological specimens, such as cells, proteins, and nucleic acids. However, the functionality of biomolecules during their observation is still controversial. Here we show the feasibility of live-cell electron microscopy using graphene veils. We demonstrate that the electron dose resistivity of live bacterial cells increases to 100-fold in graphene veils, and thus they maintain their structures and functions after electron microscopy experiments. Our results provide the guidelines and show possibilities for the electron microscopy imaging of live cells and functional biomolecules. | Koo, Kunmo; Dae, Kyun Seong; Hahn, Young Ki; Yuk, Jong Min | Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Daejeon 34141, South Korea; Kyungpook Natl Univ, Ind Technol Adv, Biomed Convergence Sci & Technol, Daegu 41566, South Korea | Yuk, Jong/I-8770-2016 | 57217122276; 57194723787; 16052846700; 26647239100 | hahnv79@gmail.com;jongmin.yuk@kaist.ac.kr; | NANO LETTERS | NANO LETT | 1530-6984 | 1530-6992 | 20 | 6 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2020 | 11.189 | 9.1 | 1.43 | 2025-06-25 | 25 | 27 | scanning electron microscopy; in situ electron microscopy; bacteria imaging; radiation damage | SNO2 NANOTUBES; LIQUID; NANOPARTICLES; DYNAMICS | bacteria imaging; in situ electron microscopy; radiation damage; scanning electron microscopy | Electrons; Graphite; Microscopy, Electron; Proteins; Biomolecules; Cells; Cytology; Electron microscopes; Electron microscopy; Electrons; Nucleic acids; graphite; protein; Bacterial cells; Biological specimens; Electron dose; Live cell; Optical resolution; Structural information; electron; electron microscopy; Graphene | English | 2020 | 2020-06-10 | 10.1021/acs.nanolett.0c00715 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Modeling for apparent resistivity estimation along direction of electrode array above rebar in electrical resistivity measurement | This paper proposes a method for estimating the resistivity of concrete surrounding a specific reinforcing bar using an electrical resistivity method above the steel bar. The previously proposed resistivity estimation model (REM) can estimate apparent resistivity and considers various factors such as concrete resistivity, steel resistivity, steel bar radius, concrete cover depth, and electrode interval. However, it is only applicable in the electrode array direction parallel to the steel bar. The proposed improved REM (I-REM) extends the analysis area to estimate the apparent resistivity depending on the measurement angle between an electrode array and the embedded steel bar. To verify the efficacy of the I-REM, the apparent resistivity of different experimental specimens were measured for various measurement angles and compared with the theoretical apparent resistivities estimated using the I-REM. Both sets of values were found to be in good agreement. | Lim, Young-Chul; Kim, Tae-Soo; Hwang, Chang-Soon | Daegu Catholic Univ, Dept Architectural Engn, Gyongsan, South Korea; Hanbat Natl Univ, Dept Architectural Engn, Daejeon, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu, South Korea | KIM, TAESOO/GRJ-9467-2022 | 55460615600; 55628583286; 57200089423 | tskim@hanbat.ac.kr; | JOURNAL OF BUILDING ENGINEERING | J BUILD ENG | 2352-7102 | 31 | SCIE | CONSTRUCTION & BUILDING TECHNOLOGY;ENGINEERING, CIVIL | 2020 | 5.318 | 9.1 | 0.55 | 2025-06-25 | 8 | 10 | Electrical resistivity; Concrete; Reinforcing bar; Measurement angle; Mathematical modeling | NONINVASIVE SURFACE MEASUREMENT; CONCRETE RESISTIVITY; CORROSION IMPEDANCE; REINFORCING BAR; PART 2 | Concrete; Electrical resistivity; Mathematical modeling; Measurement angle; Reinforcing bar | Electric conductivity; Electrodes; Rebar; Apparent resistivity; Concrete cover; Concrete resistivity; Electrical resistivity measurements; Electrical resistivity methods; Electrode arrays; Estimation models; Experimental specimens; Concretes | English | 2020 | 2020-09 | 10.1016/j.jobe.2020.101417 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Analysis of hydro-thermal and entropy generation characteristics of nanofluid in an aluminium foam heat sink by employing Darcy-Forchheimer-Brinkman model coupled with multiphase Eulerian model | The efficiency and the operational life of the modern high-tech electronics are essentially dependent on their effective thermal management. The metal foam heat sinks cooled by nanofluid are the potential candidate for electronic cooling applications. Therefore, this study investigates the hydrothermal and entropy generation aspects of nanofluid in an aluminum foam heat sink. The multiphase Eulerian model couple with the DarcyForchheimer-Brinkman model was introduced to model nanofluid in the metal foam. The performance of nanofluid dependent on substrate porosity and nanoparticles is analyzed for porosity and Reynolds number ranges of 0.5-0.8 and 600-1800, respectively. The probed nanofluid sample consisted of a 0.5% volume fraction of aqueous-based alumina nanoparticles with 40 nm diameter. The hydrothermal results are evaluated in terms of average Nusselt number, local heat transfer coefficient, pumping power and performance evaluation criteria of the heat sink. Additionally, the fluid dynamics and surface temperature distribution across the heat sink are illustrated with velocity streamlines, velocity, and thermal contours. The entropy generation aspects are discussed in the form of thermal, viscous and total entropy parameters. The results demonstrate that the heat transfer enhancement of the nanofluid is optimized by increasing the substrate porosity at the expense of the least pressure drop. The effect of media permeability on the performance of the nanofluid is more evident at a larger Reynolds number. At the Reynolds number of 1800, utilization of the nanofluid resulted in the maximum Nusselt number enhancement of 5%, 15% and 33% for the foam porosities of 0.5, 0.7 and 0.8, respectively. | Ambreen, Tehmina; Saleem, Arslan; Park, Cheol Woo | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea | Saleem, Arslan/ABA-5982-2021 | 57195420431; 57194776354; 7408416474 | chwoopark@knu.ac.kr; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 1873-5606 | 173 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.295 | 9.2 | 2.63 | 2025-06-25 | 57 | 59 | Metal foam; Nanofluid; Darcy-Forchheimer-Brinkman model; Eulerian model; Hydrothermal performance; Entropy generation | LAMINAR FORCED-CONVECTION; LOCAL THERMAL-EQUILIBRIUM; METAL-FOAM; FLUID-FLOW; POROUS-MEDIA; NUMERICAL-SIMULATION; 2-PHASE MODELS; PRESSURE-DROP; PERFORMANCE; CFD | Darcy-Forchheimer-Brinkman model; Entropy generation; Eulerian model; Hydrothermal performance; Metal foam; Nanofluid | Alumina; Aluminum; Aluminum oxide; Electronic cooling; Entropy; Heat sinks; Heat transfer coefficients; Heat transfer performance; Metal foams; Nanoparticles; Nusselt number; Porosity; Reynolds number; Substrates; Brinkman models; Entropy generation; Eulerian models; Hydrothermal performance; Nanofluids; Nanofluidics | English | 2020 | 2020-06-05 | 10.1016/j.applthermaleng.2020.115231 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Besifovir Dipivoxil Maleate 144-Week Treatment of Chronic Hepatitis B: An Open-Label Extensional Study of a Phase 3 Trial | INTRODUCTION: Chronic hepatitisB(CHB) remains a major worldwide public health concern. Besifovir dipivoxil maleate (BSV) is a new promising treatment for CHB. However, long-term efficacy and safety have not yet been evaluated. Therefore, the goal of the study is to determine the antiviral efficacy and safety of BSV treatment over a 144-week duration (BSV-BSV) in comparison with those of a sequential treatment with tenofovir disoproxil fumarate (TDF) followed by a 96-week duration BSV administration (TDF-BSV). METHODS: After 48 weeks of a double-blind comparison between BSV and TDF treatments, patients continued the open-label BSV study. Weevaluated antiviral efficacy and drug safety up to 144 weeks for BSV-BSV and TDF-BSV groups. The primary endpoint was a virological response (hepatitis B virus DNA < 69 IU/mL). RESULTS: Among the 197 patients enrolled, 170 and 158 patients entered the second-year and third- year openlabel phase extensional study, respectively, whereas 153 patients completed the 144-week follow-up. The virological response rate over the 144-week period was 87.7% and 92.1% in BSV-BSV and TDFBSV groups, respectively (P 5 0.36). The rates of ALT normalization and HBeAg seroconversion were similar between the groups. No drug-resistant mutations to BSV were noted. Bone mineral density and renal function were well preserved in the BSV-BSV group and were significantly improved after switching therapy in TDF-BSV patients. DISCUSSION: This extensional study of a phase 3 trial (NCT01937806) suggests that BSV treatment is efficacious and safe for long-term use in treatment-naive and TDF-experienced patients with CHB. | Yim, Hyung Joon; Kim, Won; Ahn, Sang Hoon; Yang, Jin Mo; Jang, Jae Young; Kweon, Yong Oh; Cho, Yong Kyun; Kim, Yoon Jun; Hong, Gun Young; Kim, Dong Joon; Jung, Young Kul; Um, Soon Ho; Sohn, Joo Hyun; Lee, Jin Woo; Park, Sung Jae; Lee, Byung Seok; Kim, Ju Hyun; Kim, Hong Soo; Yoon, Seung Kew; Kim, Moon Young; Lee, Kwan Sik; Lim, Young Suk; Lee, Wan Sik; Han, Kwang-Hyub | Korea Univ, Coll Med, Dept Internal Med, Seoul, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt, Boramae Med Ctr, Dept Internal Med,Coll Med, Seoul, South Korea; Yonsei Univ, Coll Med, Dept Internal Med, Seoul, South Korea; Catholic Univ, Med Coll St Vincent, Dept Internal Med, Suwon, South Korea; Soonchunhyang Univ, Coll Med, Dept Internal Med, Seoul, South Korea; Kyungpook Natl Univ, Coll Med, Dept Internal Med, Daegu, South Korea; Sungkyunkwan Univ, Kangbuk Samsung Hosp, Sch Med, Dept Internal Med, Seoul, South Korea; Seoul Natl Univ, Liver Res Inst, Coll Med, Dept Internal Med, Seoul, South Korea; Kwangju Christian Hosp, Dept Internal Med, Gwangju, South Korea; Hallym Univ, Coll Med, Dept Internal Med, Chunchon, South Korea; Hanyang Univ, Dept Internal Med, Coll Med, Seoul, South Korea; Inha Univ, Dept Internal Med, Coll Med, Incheon, South Korea; Inje Univ, Paik Hosp, Dept Internal Med, Busan, South Korea; Chungnam Natl Univ, Dept Gastroenterol & Hepatol, Sch Med, Daejeon, South Korea; Gacheon Univ, Coll Med, Dept Internal Med, Incheon, South Korea; Soonchunhyang Univ, Coll Med, Dept Internal Med, Cheonan, South Korea; Catholic Univ Korea, Dept Internal Med, Seoul, South Korea; Yonsei Univ, Wonju Coll Med, Dept Internal Med, Wonju, South Korea; Univ Ulsan, Asan Med Ctr, Coll Med, Dept Gastroenterol, Seoul, South Korea; Chonnam Natl Univ, Med Sch, Dept Internal Med, Gwangju, South Korea | Kim, Yong-Tae/HQZ-0240-2023; Kim, Won/H-6940-2019; SANG-HOON, AHN/AAV-2600-2020; Ahn, Sang Hoon/AFM-2603-2022; Lee, Shin-Jae/D-5883-2012; Kim, Yoon/J-2746-2012; Lim, Young-Suk/AFQ-5165-2022 | 7005664934; 57049716700; 7401989551; 35367583300; 57221679776; 7004694832; 35261851400; 25947520600; 44161264800; 55806065600; 25626113500; 57416815200; 57222479854; 57216961138; 24176295000; 57203247116; 57216524819; 57205055260; 7404036291; 55545239100; 57301655600; 57226548822; 57208140974; 7402963689 | gihankhys@yuhs.ac; | AMERICAN JOURNAL OF GASTROENTEROLOGY | AM J GASTROENTEROL | 0002-9270 | 1572-0241 | 115 | 8 | SCIE | GASTROENTEROLOGY & HEPATOLOGY | 2020 | 10.864 | 9.2 | 0.96 | 2025-06-25 | 15 | 17 | TENOFOVIR DISOPROXIL FUMARATE; VIRUS INFECTION; ENTECAVIR; CIRRHOSIS; LB80380; VACCINATION; LAMIVUDINE; FIBROSIS; REFUGEES; SAFETY | Adult; Antiviral Agents; Bone Density; Double-Blind Method; Drug Administration Schedule; Female; Guanine; Hepatitis B virus; Hepatitis B, Chronic; Humans; Male; Middle Aged; Organophosphonates; Republic of Korea; Tenofovir; Treatment Outcome; Viral Load; aspartate aminotransferase; besifovir; besifovir dipivoxil maleate; carnitine; tenofovir disoproxil; unclassified drug; ((1-((2-amino-9H-purin-9-yl)methyl)cyclopropyl)oxy)methylphosphonic acid dipivoxyl; antivirus agent; guanine; phosphonic acid derivative; tenofovir; adult; amino acid substitution; Article; backache; biochemical analysis; bone density; chronic hepatitis B; clinical trial; controlled study; diarrhea; dizziness; DNA sequencing; double blind procedure; drug efficacy; drug safety; dyspepsia; estimated glomerular filtration rate; fatigue; female; gastritis; headache; human; kidney function; laboratory test; liver cell carcinoma; liver cirrhosis; liver fibrosis; major clinical study; male; middle aged; multicenter study; nausea; non insulin dependent diabetes mellitus; phase 3 clinical trial; pruritus; randomized controlled trial; rhinopharyngitis; sustained virologic response; treatment duration; urticaria; blood; chronic hepatitis B; drug administration; Hepatitis B virus; South Korea; treatment outcome; virus load | English | 2020 | 2020-08 | 10.14309/ajg.0000000000000605 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Effect of printed circuit heat exchanger's different designs on the performance of supercritical carbon dioxide Brayton cycle | Several fin configurations have been proposed in the literature to address the poor hydraulic performance associated with the PCHEs. However, the effect of the heat exchangers with proposed channel geometries on the performance of supercritical carbon dioxide(sCO(2)) power cycle is missing. In this context, the current study deals with the effects of different designs of the PCHEs varied by proposed channel configurations, heat exchanger's effectiveness and design value of inlet Reynolds number on the performance of sCO(2) power cycle. Moreover, a multi-object optimization study to find the best bargain between cycle's efficiency and heat exchanger's size is carried out using five different fin configurations (straight, zigzag, C-shaped, S-shaped, and airfoil fin channel configuration), heat exchanger's effectiveness and inlet Reynolds number as a design variable. Results shows that enhancement in the hydraulic characteristics for a channel geometry that comes at the cost of thermal performance may not benefit the system's efficiency. Optimization results suggest that C-shaped channel and zigzag channel geometries correspond to the cycle's maximum efficiency and heat exchanger's minimum size respectively. Optimization results further highlight that the comparison of channel geometries should be performed while in the setting of complete power generation cycle to account for all the variables involved. | Saeed, Muhammed; Berrouk, Abdallah S.; Siddiqui, M. Salman; Awais, Ahmad Ali | Khalifa Univ Sci & Technol, Mech Engn Dept, Sas Al Nakhl Campus,POB 127788, Abu Dhabi, U Arab Emirates; Khalifa Univ Sci & Technol, Ctr Catalysis & Separat CeCaS, POB 127788, Abu Dhabi, U Arab Emirates; Norwegian Univ Sci & Technol, Dept Architecture & Technol, Trondheim, Norway; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | ; Saeed, Muhammad/R-4401-2019; Siddiqui, MuhammadSalman/LCT-4944-2024 | 56513270400; 15750216900; 56426764200; 57218293222 | muhammed.saeed1@ku.ac.ae; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 179 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.295 | 9.2 | 2.82 | 2025-06-25 | 64 | 68 | Printed circuit heat exchangers; Cycle simulations; Detailed heat exchanger models; Supercritical carbon dioxide cycle; Performance optimization; Design of heat exchangers, genetic algorithm | MULTIOBJECTIVE OPTIMIZATION; HYDRAULIC PERFORMANCE; AIRFOIL; PCHE; FINS; ZIGZAG | Cycle simulations; Design of heat exchangers, genetic algorithm; Detailed heat exchanger models; Performance optimization; Printed circuit heat exchangers; Supercritical carbon dioxide cycle | Brayton cycle; C (programming language); Carbon dioxide; Efficiency; Fins (heat exchange); Geometry; Printed circuits; Reynolds number; Timing circuits; Channel configuration; Hydraulic characteristic; Hydraulic performance; Multi-object optimization; Power generation cycles; Printed circuit heat exchangers; Supercritical carbon dioxides; Thermal Performance; Supercritical fluid extraction | English | 2020 | 2020-10 | 10.1016/j.applthermaleng.2020.115758 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Experimental and numerical study on the performance of a minichannel heat sink with different header geometries using nanofluids | Inefficient distributor and collector header design in a minichannel heat sink causes flow maldistribution which can severely degrade the thermal and hydraulic performance of the heat sink. This paper presents an experimental and numerical investigation on the thermohydraulic performance of minichannel heat sinks with two different header geometries using nanofluids. A series of tests are conducted on a minichannel heat sink with optimized and conventional header geometries by using (Al2O3 - H2O) nanofluids and distilled water as coolants. The effects of header geometry, nanoparticle concentration, and coolant flow rate on the overall heat transfer coefficient, heat transfer enhancement, thermal resistance, and base temperature are investigated. The experimental and numerical results exhibited good agreement, indicating that the thermohydraulic performance of the heat sink with the optimized header geometry is superior to that with the conventional header geometry. The minichannel heat sink with the optimized header geometry exhibited 17% higher overall heat transfer coefficient and 43% reduction in pressure drop while achieving lower values for base temperature and thermal resistance for each employed flow rate and volumetric concentration of nanoparticles. Furthermore, the performance evaluation criteria (PEC) indicated a 41% improvement in hydraulic performance while using minichannel heat sink with optimized header geometry compared to that with the conventional header geometry. | Awais, Ahmad Ali; Kim, Man-Hoe | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea | 57215417633; 55686310000 | manhoe.kim@knu.ac.kr; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 1873-5606 | 171 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.295 | 9.2 | 2.63 | 2025-06-25 | 51 | 57 | Minichannel heat sink; Nanofluids; Header shape optimization; Heat transfer enhancement; Maldistribution | PRESSURE-DROP CHARACTERISTICS; HYDRAULIC PERFORMANCE; TRANSFER ENHANCEMENT; COOLING PERFORMANCE; THERMAL PERFORMANCE; FLOW; CHANNEL; AL2O3-H2O; DESIGN; TUBE | Header shape optimization; Heat transfer enhancement; Maldistribution; Minichannel heat sink; Nanofluids | Alumina; Aluminum oxide; Coolants; Geometry; Heat resistance; Heat sinks; Heat transfer coefficients; Nanoparticles; Shape optimization; Experimental and numerical studies; Heat Transfer enhancement; Maldistribution; Mini channels; Nanofluids; Overall heat transfer coefficient; Performance evaluation criteria; Thermal and hydraulic performance; Nanofluidics | English | 2020 | 2020-05-05 | 10.1016/j.applthermaleng.2020.115125 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Parametric evaluation of a hydrofoil-shaped sidewall rib-employed microchannel heat sink with and without nano-encapsulated phase change material slurry as coolant | The application of hydrofoil-shaped sidewall ribs (SWRs) in microchannel heat sinks (MCHSs) with nano-encapsulated phase change material (NEPCM) particle slurry as coolant has recently been proven as an improvised solution for enhancing heat transfer, with a reasonable penalty in pressure drop. However, the further mitigation of high-power densities of modern micro/nanoscale devices is limited owing to manufacturing complications and design constraints. By using the geometrical and thermophysical parameters of hydrofoil-shaped SWRs and NEPCM slurry, the present study numerically evaluates the thermal and hydrodynamic performance of an MCHS device. The preliminary results reveal the superior performance of NEPCM slurry with hydrofoil-shaped SWRs compared with that of water without ribs in an MCHS owing to the improved latent heat storage capability of the former fluid as well as the enhanced heat transfer area of the rib structure. Increase in the width and height of hydrofoil-shaped SWRs and particle diameter, latent heat of fusion and mass concentration of the NEPCM slurry at a constant Reynolds number (Re) and inlet temperature enhances heat transfer. However, increase in the pitch of the hydrofoil-shaped SWRs and melting temperature range of the NEPCM slurry degrades heat transfer. The inlet temperature of the NEPCM slurry, with a slightly lower value than the melting point of the NEPCM particles, yields superior performance. The maximum ratios of the Nusselt number, that is, Nu(avg,SWR)/Nu(avg,ref) and Nu(avg,NEPCM)/Nu(avg,ref), are 1.88 and 2.68, respectively. A particle loading of more than 10% at a high Re of 1000 is not reasonable from the thermodynamic efficiency perspective. The findings are expected to serve as a benchmark for the selection of the geometric, thermophysical and operational parameters of future MCHS devices with hydrofoil-shaped SWRs and NEPCM slurry as coolant. | Rehman, M. Mohib Ur; Cheema, Taqi Ahmad; Khan, Masroor; Abbas, Ahmad; Ali, Haider; Park, Cheol Woo | GIK Inst Engn Sci & Technol, Fac Mech Engn, Topi 23460, Kpk, Pakistan; Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | ; Abbas, Ahmad/GSM-9364-2022 | 57193309749; 36522492600; 55754377300; 57193502684; 59272327100; 7408416474 | tacheema@giki.edu.pk;chwoopark@knu.ac.kr; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 1873-5606 | 178 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 5.295 | 9.2 | 1.27 | 2025-06-25 | 31 | 29 | Hydrofoil-shaped sidewall ribs; Thermal management; Microchannel heat sink; Heat transfer enhancement; Nano encapsulated phase change material slurry | LAMINAR-FLOW; TRANSFER ENHANCEMENT; PERFORMANCE EVALUATION; HYDRAULIC PERFORMANCE; CAVITIES; SUSPENSIONS; PARTICLES; FLUID | Heat transfer enhancement; Hydrofoil-shaped sidewall ribs; Microchannel heat sink; Nano encapsulated phase change material slurry; Thermal management | Coolants; Heat sinks; Heat storage; Hydrofoils; Latent heat; Melting point; Microchannels; Phase change materials; Reynolds number; Encapsulated phase change materials; Enhanced heat transfer; Enhancing heat transfer; Hydrodynamic performance; Micro channel heat sinks; Operational parameters; Thermo-physical parameters; Thermodynamic efficiency; Heat transfer performance | English | 2020 | 2020-09 | 10.1016/j.applthermaleng.2020.115514 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Examining effects of context-awareness on ambient intelligence of logistics service quality: user awareness compatibility as a moderator | The internet of things has changed the way we interact with information system. With the pervasive information system facing various complexities of end clients, the development mode based on semantic association and context-awareness made it possible to provide personalized service for each client. In this paper, the context-awareness-based ambient intelligence predicts users' intention to use depending on the contexts they provide. By applying the prediction to logistics services, it can provide customized service to keep clients satisfied. A key issue in user-centered services is how to detect each user specific situation and choose a certain service that meets users' requirements the best, and then to provide support for real-time decision making. We believe that the complishment of ambient intelligence cannot be separated from technology support when it comes to intelligent behavior. | Liu, Chang; Park, Eun-Mi; Jiang, Fengzhen | Taishan Univ, Sch Econ & Management, 525 Dongyue St, Tai An 271000, Shandong, Peoples R China; Kyungpook Natl Univ, Sch Business, 80 Daehakro, Daegu 41566, South Korea; Qingdao Technol Univ, Sch Management Engn, 2 Yangtze River Rd, Qingdao 266520, Shandong, Peoples R China | 59615794100; 56352305900; 57205123107 | lc97123@tsu.edu.cn;issack38317@naver.com;fengzj87@qut.edu.cn; | JOURNAL OF AMBIENT INTELLIGENCE AND HUMANIZED COMPUTING | J AMB INTEL HUM COMP | 1868-5137 | 1868-5145 | 11 | 4 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, INFORMATION SYSTEMS;TELECOMMUNICATIONS | 2020 | 7.104 | 9.3 | 1.11 | 2025-06-25 | 14 | 21 | Internet of things (IoT); Ambient intelligence (AmI); Context-awareness; SERVQUAL; Logistics service quality | INTERACTIVITY; COMMUNICATION; INFORMATION; DISCOVERY; KNOWLEDGE; SELECTION; INTERNET | Ambient intelligence (AmI); Context-awareness; Internet of things (IoT); Logistics service quality; SERVQUAL | Artificial intelligence; Decision making; Information systems; Information use; Internet of things; Quality of service; Semantics; User interfaces; Context- awareness; Internet of Things (IOT); Logistics service qualities; Pervasive information systems; Real time decision-making; Semantic associations; SERVQUAL; User-centered services; Ambient intelligence | English | 2020 | 2020-04 | 10.1007/s12652-018-1004-z | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fine-grained data-locality aware MapReduce job scheduler in a virtualized environment | Big data overwhelmed industries and research sectors. Reliable decision making is always a challenging task, which requires cost-effective big data processing tools. Hadoop MapReduce is being used to store and process huge volume of data in a distributed environment. However, due to huge capital investment and lack of expertise to set up an on-premise Hadoop cluster, big data users seek cloud-based MapReduce service over the Internet. Mostly, MapReduce on a cluster of virtual machines is offered as a service for a pay-per-use basis. Virtual machines in MapReduce virtual cluster reside in different physical machines and co-locate with other non-MapReduce VMs. This causes to share IO resources such as disk and network bandwidth, leading to congestion as most of the MapReduce jobs are disk and network intensive. Especially, the shuffle phase in MapReduce execution sequence consumes huge network bandwidth in a multi-tenant environment. This results in increased job latency and bandwidth consumption cost. Therefore, it is essential to minimize the amount of intermediate data in the shuffle phase rather than supplying more network bandwidth that results in increased service cost. Considering this objective, we extended multi-level per node combiner for a batch of MapReduce jobs to improve makespan. We observed that makespan is improved up to 32.4% by minimizing the number of intermediate data in shuffle phase when compared to classical schedulers with default combiners. | Jeyaraj, Rathinaraja; Ananthanarayana, V. S.; Paul, Anand | Natl Inst Technol Karnataka, Dept IT, Mangalore, India; Kyungpook Natl Univ, Sch Comp Sci & Engn, 80 Daehakro, Daegu, South Korea | Alsaif, Amal/IUO-9428-2023; Paul, Anand/V-6724-2017; Jeyaraj, Rathinaraja/ABB-7781-2021 | 57203111601; 23396223700; 56650522400 | jrathinaraja@gmail.com;ananthvs1967@gmail.com;paul.editor@gmail.com; | JOURNAL OF AMBIENT INTELLIGENCE AND HUMANIZED COMPUTING | J AMB INTEL HUM COMP | 1868-5137 | 1868-5145 | 11 | 10 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, INFORMATION SYSTEMS;TELECOMMUNICATIONS | 2020 | 7.104 | 9.3 | 0.34 | 2025-06-25 | 2 | 6 | MapReduce job scheduling; Combiner; Bandwidth minimization | DATA PLACEMENT; HADOOP; PERFORMANCE | Bandwidth minimization; Combiner; MapReduce job scheduling | Big data; Cost effectiveness; Decision making; Investments; Network security; Scheduling; Virtual machine; Virtual reality; Bandwidth consumption; Bandwidth minimization; Combiner; Distributed environments; Execution sequences; Job scheduling; Minimizing the number of; Virtualized environment; Bandwidth | English | 2020 | 2020-10 | 10.1007/s12652-020-01707-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Impacts and characteristics of antimicrobial resistance of Escherichia coli isolates by administration of third-generation cephalosporins in layer hatcheries | We investigated the characteristics and persistence of Escherichia coli resistant to third-generation cephalosporins (3GCs) by early administration of ceftiofur or gentamicin and to analyze the impact of 3GC use in hatcheries. We studied 10 ceftiofur-treated flocks (CTFs) and 10 gentamicin-treated flocks (GTFs) of layers. Fecal samples were collected at 1, 2, 4, 8, 18, and 30 weeks of age for all flocks. Among the 446 E. coli isolates, 58 (29.0 %) of 200 isolates in CTFs were identified as 3GC-resistant E. coli and 28 (11.4 %) of 246 isolates in GTF5 were identified as 3GC-resistant E. coli. The presence of 3GC-resistant E. coli isolates at 1, 2, and 4 weeks was significantly higher in CTFs than in GTF5 (p < 0.05). Moreover, the rate of resistance to 3GCs gradually decreased from 83.3 % at 1 week of age to 4.4 % at 30 weeks of age in CTFs. Of the 86 3GC-resistant E. coli isolates, 32 isolates had beta-lactamase-encoding gene: bla(CTX-M-14) (ten isolates), bla(CTX-M-15) (three isolates), bla(CMY-2) (five isolates), and bla(TEM-1) (twenty-five isolates) genes. Plasmid replicon typing revealed that bla(CTX-M-14), bla(CTX-M-14), bla(CMY-2), and bla(TEM-1) were located on F, F and FIB, I1 and K, and I1 and FII, respectively. Furthermore, 18 isolates carried class 1 integrons, with four different gene cassettes. These results revealed that ceftiofur used in hatcheries can lead to an increase in the number of 3GC-resistant E. coli with many characteristics. A voluntary ban must be imposed on the use of 3GCs for 1-day-old chicks in poultry industry. | Seo, Kwang Won; Shim, Jong Bo; Kim, Yeong Bin; Son, Se Hyun; Noh, Eun Bi; Yoon, Sunghyun; Lim, Suk-Kyung; Lee, Young Ju | Mississippi State Univ, Coll Vet Med, Dept Basic Sci, Mississippi State, MS 39762 USA; Korean Poultry TS Co Ltd, Icheon 17415, South Korea; Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Zoonoses Res Inst, Daegu 41566, South Korea; Minist Agr Food & Rural Affairs, Anim & Plant Quarantine Agcy, Gimcheon 39660, South Korea | ; Yoon, Sunghyun/AAL-4806-2021 | 57203233812; 57206197349; 57200044764; 57209841240; 57216036875; 57216037473; 35086548900; 56612134500 | youngju@knu.ac.kr; | VETERINARY MICROBIOLOGY | VET MICROBIOL | 0378-1135 | 1873-2542 | 243 | SCIE | MICROBIOLOGY;VETERINARY SCIENCES | 2020 | 3.293 | 9.3 | 1.26 | 2025-06-25 | 14 | 13 | Escherichia coli; Antimicrobial resistance; Third-generation cephalosporin; beta-lactamases; Layer | SPECTRUM-BETA-LACTAMASE; CTX-M; MOLECULAR CHARACTERIZATION; KLEBSIELLA-PNEUMONIAE; ADDICTION SYSTEMS; FARM-ANIMALS; PREVALENCE; GENES; BROILERS; MEAT | Antimicrobial resistance; Escherichia coli; Layer; Third-generation cephalosporin; β-lactamases | Animals; Anti-Bacterial Agents; beta-Lactamases; Cephalosporins; Chickens; Drug Resistance, Multiple, Bacterial; Escherichia coli; Feces; Gentamicins; Poultry; Poultry Diseases; amoxicillin plus clavulanic acid; ampicillin; beta lactamase; ceftiofur; cephalosporin derivative; chloramphenicol; ciprofloxacin; cotrimoxazole; extended spectrum beta lactamase; gentamicin; imipenem; nalidixic acid; tetracycline; antiinfective agent; cephalosporin derivative; gentamicin; antibiotic resistance; Article; bacterium isolate; bird flock; class 1 integron; comparative study; controlled study; Escherichia coli; gene cassette; gentamicin resistance; hatchery; molecular phylogeny; nonhuman; replicon; animal; bird disease; chicken; drug effect; enzymology; Escherichia coli; feces; genetics; microbiology; multidrug resistance; poultry | English | 2020 | 2020-04 | 10.1016/j.vetmic.2020.108643 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Editorial Material | Special issue on "Wearable computing techniques for smart health" | Kumar, Karthigai; Paul, Anand; Chen, Joy Iong-Zong | Karpagam Coll Engn, Dept Commun Engn, Coimbatore, Tamil Nadu, India; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu, South Korea; Da Yeh Univ, Dept Elect Engn, Zhanghua, Taiwan | 57215507820; 56650522400; 8551622400 | karthigaikumar@outlook.com; | JOURNAL OF AMBIENT INTELLIGENCE AND HUMANIZED COMPUTING | J AMB INTEL HUM COMP | 1868-5137 | 1868-5145 | 11 | 11 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, INFORMATION SYSTEMS;TELECOMMUNICATIONS | 2020 | 7.104 | 9.3 | 12.18 | 2025-06-25 | 6 | 7 | English | 2020 | 2020-11 | 10.1007/s12652-020-01786-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Toward Efficient Electrocatalytic Oxygen Evolution: Emerging Opportunities with Metallic Pyrochlore Oxides for Electrocatalysts and Conductive Supports | The design of active and stable electrocatalysts for oxygen evolution reaction is a key enabling step toward efficient utilization of renewable energy. Along with efforts to develop high-performance electrocatalysts for oxygen evolution reaction, pyrochlore oxides have emerged as highly active and stable materials that function as catalysts as well as conductive supports for hybrid catalysts. The compositional flexibility of pyrochlore oxide provides many opportunities to improve electrocatalytic performance by manipulating material structures and properties. In this Outlook, we first discuss the recent advances in developing metallic pyrochlore oxides as oxygen evolution catalysts, along with elucidation of their reaction mechanisms, and then introduce an emerging area of using pyrochlore oxides as conductive supports to design hybrid catalysts to further improve the OER activity. Finally, the remaining challenges and emerging opportunities for pyrochlore oxides as electrocatalysts and conductive supports are discussed. | Kim, Myeongjin; Park, Jinho; Kang, Minsoo; Kim, Jin Young; Lee, Seung Woo | Kyungpook Natl Univ, Dept Hydrogen & Renewable Energy, Daegu 41566, South Korea; Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA; Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA; Korea Inst Sci & Technol KIST, Fuel Cell Res Ctr, Seoul 02792, South Korea | Lee, Seung/B-5820-2013; Kim, Joo Hyun/C-6604-2019; Park, Jinho/AAR-9508-2021 | 55541419000; 56982072800; 57211023238; 57217845971; 56449665800 | myeongjinkim@knu.ac.kr;seung.lee@me.gatech.edu; | ACS CENTRAL SCIENCE | ACS CENTRAL SCI | 2374-7943 | 2374-7951 | 6 | 6 | SCIE | CHEMISTRY, MULTIDISCIPLINARY | 2020 | 14.553 | 9.3 | 1.16 | 2025-06-25 | 94 | 92 | RUTHENIUM PYROCHLORE; BIFUNCTIONAL ELECTROCATALYST; REDUCTION REACTION; CATALYST; WATER; BISMUTH; IRIDIUM; STABILITY; ELECTROLYZERS; PEROVSKITES | Electrocatalysts; Electrolysis; Hybrid materials; Metallic compounds; Oxygen evolution reaction; Electrocatalytic; Electrocatalytic performance; Hybrid catalysts; Material structure; Oxygen evolution; Pyrochlore oxide; Reaction mechanism; Renewable energies; Catalyst supports | English | 2020 | 2020-06-24 | 10.1021/acscentsci.0c00479 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Virulence of four entomopathogenic nematodes against the tobacco cutworm Spodoptera litura Fabricius | Spodoptera litura Fabricius is a polyphagous pest that is seriously affecting various crops. Controlling S. litura in the fields is a challenging task due to its high resistance to most chemical pesticides. Entomopathogenic nematodes (EPNs) have been used as biological control agents against S. litura, but little information is known about their virulence. Here we compared the virulence of four EPNs, namely Heterorhabditis bacteriophora, H. indica, Steinernema carpocapsae, and S. longicaudum against each larval stage of S. litura. All EPNs caused more lethality in younger larvae than in older larvae. The mortality at all larval stages was proportional to EPN exposure time and density. The comparison among four EPNs showed that H. indica, S. carpocapsae, and S. longicaudum were associated with higher mortality, penetration rate, and reproduction rate than H. bacteriophora. These EPNs also effectively controlled S. litura in a pot assay. Our findings indicate that H. indica, S. carpocapsae, and S. longicaudum can be used as efficient biological control agents against S. litura. | Acharya, Rajendra; Yu, Yeon-Su; Shim, Jae-Kyoung; Lee, Kyeong-Yeoll | Kyungpook Natl Univ, Coll Agr & Life Sci, Dept Appl Biosci, Daegu, South Korea; Kyungpook Natl Univ, Inst Plant Med, Daegu, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu, South Korea; Kyungpook Natl Univ, Sustainable Agr Res Ctr, Gunwi, South Korea; Daedong Tech, Gyongsan, South Korea | Acharya, Rajendra/AAG-6838-2020 | 57210568049; 56143693500; 7201856347; 57217153096 | leeky@knu.ac.kr; | BIOLOGICAL CONTROL | BIOL CONTROL | 1049-9644 | 1090-2112 | 150 | SCIE | BIOTECHNOLOGY & APPLIED MICROBIOLOGY;ENTOMOLOGY | 2020 | 3.687 | 9.3 | 1.71 | 2025-06-25 | 24 | 25 | Biological control; Control efficacy; Entomopathogenic nematodes; Penetration; Reproduction | LEPIDOPTERA-NOCTUIDAE; HOST AGE; SUSCEPTIBILITY; RESISTANCE; PUPAE | Biological control; Control efficacy; Entomopathogenic nematodes; Penetration; Reproduction | English | 2020 | 2020-11 | 10.1016/j.biocontrol.2020.104348 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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