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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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| ○ | ○ | Letter | Clinical characteristics and outcome in patients with pulmonary embolism undergoing coronary angiography | Lee, Yong-Hoon; Cha, Seung-Ick; Kim, Hyungseop; Kim, Chang-Yeon; Choi, Sun Ha; Seo, Hyewon; Yoo, Seung-Soo; Lee, Shin-Yup; Lee, Jaehee; Kim, Chang-Ho; Park, Jae-Yong | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Internal Med, Daegu, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Internal Med, Daegu, South Korea; Daegu Catholic Univ, Med Ctr, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Dept Internal Med, Sch Med, Daegu, South Korea | Choi, Sun Ha/HPD-7234-2023; Kim, Ho Jin/IZP-7210-2023; Lee, Junseong/T-4139-2017; Lee, Jaehee/S-1697-2018 | 57199022948; 35227126400; 54942539300; 55887435100; 57199723585; 55612130200; 56479781600; 49863712700; 13805476000; 7409873555; 58360293800 | sicha@knu.ac.kr; | VASCULAR MEDICINE | VASC MED | 1358-863X | 1477-0377 | 25 | 2 | SCIE | PERIPHERAL VASCULAR DISEASE | 2020 | 3.53 | 39.2 | 0 | 2025-06-25 | 0 | 0 | acute coronary syndrome; computed tomography (CT); coronary angiography; pulmonary embolism (PE) | EMERGENCY-DEPARTMENT; MANAGEMENT; DIAGNOSIS | acute coronary syndrome; computed tomography (CT); coronary angiography; pulmonary embolism (PE) | Acute Coronary Syndrome; Aged; Angina Pectoris; Chest Pain; Coronary Angiography; Diagnosis, Differential; Female; Humans; Incidence; Male; Middle Aged; Predictive Value of Tests; Prognosis; Pulmonary Embolism; Republic of Korea; Retrospective Studies; Severity of Illness Index; troponin I; acute coronary syndrome; adverse outcome; Article; cardiology; cardiovascular risk; coronary angiography; diagnostic accuracy; differential diagnosis; heart right ventricle function; high risk patient; hospital mortality; hospitalization; human; incidence; Korea; lung angiography; lung blood vessel; lung embolism; lung infarction; medical society; priority journal; prognosis; pulmonary artery; tertiary care center; thorax pain; treatment outcome; undiagnosed disease; ventilation-perfusion scan; acute coronary syndrome; aged; angina pectoris; clinical trial; diagnostic imaging; female; lung embolism; male; middle aged; mortality; multicenter study; predictive value; retrospective study; severity of illness index; South Korea; thorax pain | English | 2020 | 2020-04 | 10.1177/1358863x19900239 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Genome-wide analysis of alternative splicing events during response to drought stress in tomato (Solanum lycopersicum L.) | Alternative splicing (AS) is a post-transcriptional regulatory mechanism that expands proteomic diversity. AS often occurs in the context of changing environmental conditions. Nevertheless, it remains largely unknown whether or how AS is involved in plant responses to drought stress. To assess the effects of drought stress, we compared AS genes in tomato plants by constructing three RNA-seq libraries in normal and drought conditions. We identified 464 Stage 1 (normal condition)-specific, 512 Stage 2 (mild drought stress)-specific and 506 Stage 3 (drought stress)-specific AS genes. Stage-dependent changes in AS genes assigned to 'response to stimulus' may participate in plant tolerance to drought stress. Analysis of differential isoform expression of selected genes suggested that an AS event in the ubiquitination pathway may be required to control plant responses to drought stress. Taken together, these findings suggest that genes with specific-AS patterns may serve as potential genetic resources for future improvement of plant adaptation to drought stress. | Lee, Hee Ju; Eom, Seung Hee; Lee, Jin Hyoung; Wi, Seung Hwan; Kim, Sung Kyeom; Hyun, Tae Kyung | Natl Inst Hort & Herbal Sci, Vegetable Res Div, Wonju, South Korea; Chungbuk Natl Univ, Coll Agr Life & Environm Sci, Dept Ind Plant Sci & Technol, Cheongju 28644, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Dept Hort Sci, Daegu, South Korea | Kim, Sung Kyeom/AAD-9230-2019 | 59106640900; 55542463700; 48461594400; 58607882100; 50262290200; 35722113700 | taekyung7708@chungbuk.ac.kr; | JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY | J HORTIC SCI BIOTECH | 1462-0316 | 2380-4084 | 95 | 3 | SCIE | HORTICULTURE | 2020 | 1.641 | 39.2 | 0.59 | 2025-06-25 | 9 | 8 | Tomato; drought; alternative splicing; ubiquitination; E3 ubiquitin-protein ligase | RNA-SEQ; EXPRESSION ANALYSIS; INTRON RETENTION; TOLERANCE; LIGHT; BIOSYNTHESIS; ISOFORM; REVEALS; HISAT | alternative splicing; drought; E3 ubiquitin-protein ligase; Tomato; ubiquitination | English | 2020 | 2020-05-03 | 10.1080/14620316.2019.1656552 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Improvement in RNA quantity and quality in cervico-vaginal cytology | The separation of exfoliated cells from the brushes used during cervico-vaginal smears is difficult, a problem which may affect the quality of ribonucleic acid (RNA) extracted. We compared the results of RNA extraction from cervico-vaginal cytology samples according to the type of tubes, preservative solutions, and storage temperature. The samples included exfoliated cervico-vaginal cytological specimens from patients with human papilloma virus 16, positive for cervical intraepithelial neoplasia or cervical cancer. Exfoliated cells were obtained by shaking a brush in a conventional rigid vial tube or squeezing the brush in a soft vial tube. RNA quantity and quality were compared between the two tubes. The concentration and purity of RNA (A260/A280 and A260/A230 ratios) was compared amongst five groups: Group 1, standard frozen storage; Group 2-4, RNA stabilization reagents with room temperature [RNAlater RNA Stabilization Reagent, RNAprotect cell Reagent and AllProtect Tissue Reagent]; and Group 5, Surepath Preservative fluid. To demonstrate the utility of the extracted RNA for PCR-based cDNA synthesis, GAPDH and E6 were targeted and gel band densities of GAPDH and E6 were measured. The median RNA concentration was significantly higher in the soft tubes compared with the rigid tubes (100.2 vs. 7.1 ng/mu L, p = 0.0209). The purity of the RNA was higher in soft vial tubes than in rigid vials, as measured by A260/280 and A260/230 ratios. The RNA concentration, purity, and GAPDH density of groups 1, 2 and 3 were significantly higher than those of groups 4 and 5. Moreover, E6 density of group 1 and 2 was significantly higher than that of group 3, 4 and 5. The use of soft tubes enhanced the mRNA quantity and quality in cervico-vaginal cytology. The products of mRNA extraction using RNAlater RNA Stabilization Reagent and RNAprotect Cell Reagent at room temperature were comparable to those obtained by conventional frozen storage. Our protocol improved the yield and quality of RNA and might produce better results for molecular analysis in cervico-vaginal cytology. | Chong, Gun Oh; Han, Hyung Soo; Lee, Seon Duk; Lee, Yoon Hee | Kyungpook Natl Univ, Dept Obstet & Gynecol, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Dept Obstet & Gynecol, Chilgok Hosp, Daegu, South Korea; Kyungpook Natl Univ, Mol Diagnost & Imaging Ctr, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Dept Physiol, Sch Med, Daegu, South Korea | LEE, SEJUE/KMX-1267-2024; Lee, Sang-Jae/IQU-9591-2023 | 23099068000; 7401969388; 57202327771; 37088851700 | guitar23md@gmail.com; | VIROLOGY JOURNAL | VIROL J | 1743-422X | 17 | 1 | SCIE | VIROLOGY | 2020 | 4.099 | 39.2 | 0.17 | 2025-06-25 | 6 | 4 | Cervico-vaginal cytology; mRNA; Quantity; Quality | EXTRACTION; FLUID; TESTS; DNA; E6 | Cervico-vaginal cytology; mRNA; Quality; Quantity | Adult; Cervical Intraepithelial Neoplasia; Cervix Uteri; Female; Human papillomavirus 16; Humans; Papillomavirus Infections; RNA, Messenger; Uterine Cervical Neoplasms; Vagina; Vaginal Smears; complementary DNA; glyceraldehyde 3 phosphate dehydrogenase (NADP); messenger RNA; protein E6; reagent; RNA; messenger RNA; Article; controlled study; DNA synthesis; human; human tissue; Papillomaviridae; polymerase chain reaction; protein targeting; real time reverse transcription polymerase chain reaction; RNA extraction; RNA sequence; room temperature; uterine cervix cancer; uterine cervix carcinoma in situ; uterine cervix cytology; vagina cytology; adult; complication; cytology; female; genetics; Human papillomavirus type 16; papillomavirus infection; procedures; uterine cervix; uterine cervix tumor; vagina; vagina smear; virology | English | 2020 | 2020-01-20 | 10.1186/s12985-020-1282-x | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Meeting Abstract | New Insight into Why We Run a Track Counterclockwise: Frontal EEG Asymmetry and ERP Analyses | Kim, Jingu; Kim, Yujin; Kwon, Sechang | Kyungpook Natl Univ, Daegu, South Korea | JOURNAL OF SPORT & EXERCISE PSYCHOLOGY | J SPORT EXERCISE PSY | 0895-2779 | 1543-2904 | 42 | SSCI;SCIE | HOSPITALITY, LEISURE, SPORT & TOURISM;PSYCHOLOGY, APPLIED;PSYCHOLOGY;SPORT SCIENCES | 2020 | 3.016 | 39.2 | 0 | English | 2020 | 2020-08 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | ○ | Article | Reduced order model of offshore wind turbine wake by proper orthogonal decomposition | A wide range of previously designed methods for faster parametrization of partial differential equations requires them to be solved using existing finite volume, finite element, and finite difference solvers. Due to the requirement of high degrees of freedom to accurately model the physical system, computational costs often becomes a bottle-neck. It poses challenges to conducting efficient repeated parametric sampling of the input parameter that disrupts the whole design process. Model reduction techniques adopted to high fidelity systems provide a basis to accurately represent a physical system with a lower degree of freedom. The present work focuses on one such method for high-fidelity simulations that combines finite volume strategy with proper orthogonal decomposition and Galerkin projection to test reduced-order models for high Reynolds number flow applications. The model is first benchmarked against flow around a cylinder for which extensive numerical and experimental data is available in the literature. The models are then tested to full-scale NREL 5MW offshore wind turbines to evaluate wake evolution in the downstream direction. The simulations results show relative errors of wind turbines for the first seventy modes approach 4.7% in L-2-norm for velocities. | Siddiqui, M. Salman; Latif, Sidra Tul Muntaha; Saeed, Muhammad; Rahman, Muhammad; Badar, Abdul Waheed; Hasan, Syed Maaz | Norwegian Univ Sci & Technol, Dept Architecture & Technol, Trondheim, Norway; Norwegian Univ Sci & Technol, Dept Comp Sci, Trondheim, Norway; Kyungpook Natl Univ, Dept Mech Engn, Daegu, South Korea; Mirpur Univ Sci & Technol, Dept Math, Mirpur Ajk, Pakistan; HITEC Univ, Dept Mech Engn, Taxila, Pakistan; Coll Elect & Mech Engn, Dept Mech Engn, Rawalpindi, Pakistan | Hasan, Shadi/R-6028-2019; Siddiqui, MuhammadSalman/LCT-4944-2024; Badar, Abdul/C-4429-2016; Saeed, Muhammad/R-4401-2019 | 56426764200; 57214228961; 56513270400; 55611634700; 37090374200; 57188811015 | muhammad.siddiqui@ntnu.no; | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | INT J HEAT FLUID FL | 0142-727X | 1879-2278 | 82 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2020 | 2.789 | 39.2 | 1.39 | 2025-06-25 | 21 | 25 | Wind Energy; Proper Orthogonal Decomposition; Reduced Order Models; High Fidelity Simulations; High Reynolds Number Flows; Sliding Mesh Interface; NREL 5MW Offshore Wind Turbine; Wake Dynamics | GEOMETRIC APPROXIMATIONS; NAVIER-STOKES; TURBULENCE; FLOW; PERFORMANCE | High Fidelity Simulations; High Reynolds Number Flows; NREL 5MW Offshore Wind Turbine; Proper Orthogonal Decomposition; Reduced Order Models; Sliding Mesh Interface; Wake Dynamics; Wind Energy | Bottles; Degrees of freedom (mechanics); Offshore oil well production; Principal component analysis; Reynolds number; Wakes; Wind power; High Reynolds number flows; High-fidelity simulations; Nrel 5mw offshore; Proper orthogonal decompositions; Reduced order models; Sliding mesh; Wake dynamics; Offshore wind turbines | English | 2020 | 2020-04 | 10.1016/j.ijheatfluidflow.2020.108554 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Speed of FDI expansions and the survival of Korean SMEs: the moderating role of ownership structure | We examine the effects of the speed of FDI expansions (SFEs) on the survival of small and medium-sized enterprises (SMEs) and the moderating role of ownership structure, highlighting how the relationship between SFEs and SME survival varies depending on the owners' identity and their potentially dissimilar interests. We argue and find in a study of Korean SMEs that the relationship between SFEs and SME survival exhibits an inverted U-shape. Moreover, SME survival peaks at a higher level of SFEs when family ownership is high, while SME survival peaks at a lower level of SFEs when institutional ownership is high. | Cho, Jaeyoung; Lee, Jangwoo | Kyungpook Natl Univ, Dept Management, 80 Daehak Ro, Daegu, South Korea | 57193627687; 41561405700 | chojae7646@gmail.com;antonio@knu.ac.kr; | ASIAN BUSINESS & MANAGEMENT | ASIAN BUS MANAG | 1472-4782 | 1476-9328 | 19 | 2 | SSCI | BUSINESS;MANAGEMENT | 2020 | 4.8 | 39.2 | 0.47 | 2025-06-25 | 7 | 7 | Speed of FDI expansions; Ownership structure; SME survival; South Korea | INTERNATIONALIZATION PROCESS; INSTITUTIONAL OWNERSHIP; FAMILY INVOLVEMENT; DIRECT-INVESTMENT; FIRM PERFORMANCE; MODE CHOICE; FOREIGN; MANAGEMENT; STRATEGY; ENTRY | Ownership structure; SME survival; South Korea; Speed of FDI expansions | English | 2020 | 2020-04 | 10.1057/s41291-018-0045-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Surface energy characterization of different particulate silica gels at infinite dilution | Porous silica gels are the well-established adsorbent materials used in adsorption cooling, dehumidification, gas separation, and desalination applications. To understand the adsorption characteristics, morphological characterization of the adsorbent is widely used. However, the surface activities of the adsorbent material, which are the most influential parameters for the adsorption process, are still unknown. To determine the surface activities, surface energy analysis has been performed for four silica gel particulates (RD granular silica gel, Chromatorex, Home silica gel, and B-type silica gel) using inverse gas chromatography technique. Experiments have been conducted at infinite dilution (0.008 to 0.1 coverage) with a fixed flowrate (30 sccm) of helium gas. The results showed that RD granular silica gel has the highest value of total surface energy for all the coverages. A correlation between the dispersive component of surface energy and morphological characteristics (variation with specific surface area and pore size distribution) has been discussed. Comparative studies on surface energy components of the studied silica gels and activated carbons have also been presented, which will contribute to fulfilling the knowledge gap between morphological characterization and adsorption phenomenon. | Palash, M. L.; Pal, Animesh; Rupam, Tahmid Hasan; Park, Byung-Duck; Saha, Bidyut Baran | Kyushu Univ, Green Asia Educ Ctr, Kasuga Koen 6-1, Kasuga, Fukuoka 8168580, Japan; Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan; Univ Dhaka, Dept Elect & Elect Engn, Dhaka 1000, Bangladesh; Univ Dhaka, Dept Nucl Engn, Dhaka 1000, Bangladesh; Kyungpook Natl Univ, Sch Automot Engn, 386 Gajang Don, Sangju 742711, Gyeongbuk, South Korea; Kyushu Univ, Mech Engn Dept, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan | Palash, M/ABJ-8077-2022; Rupam, Tahmid/G-7239-2017; RUPAM, TAHMID/G-7239-2017; Saha, Bidyut/C-5828-2012; Pal, Animesh/AAQ-4555-2020 | 36134725500; 57075672400; 57210793818; 57217586474; 7202946309 | saha.baran.bidyut.213@m.kyushu-u.ac.jp; | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | COLLOID SURFACE A | 0927-7757 | 1873-4359 | 603 | SCIE | CHEMISTRY, PHYSICAL | 2020 | 4.539 | 39.2 | 0.84 | 2025-06-25 | 17 | 16 | Adsorption; Henry region; Inverse gas chromatography; Morphology; Silica gel; Surface energy | INVERSE GAS-CHROMATOGRAPHY; ADSORPTION DESALINATION; ACTIVATED CARBONS; PERFORMANCE; HEAT; COMPOSITE; COVERAGE | Adsorption; Henry region; Inverse gas chromatography; Morphology; Silica gel; Surface energy | Activated carbon; Desalination; Gas adsorption; Gas chromatography; Humidity control; Interfacial energy; Oil field equipment; Pore size; Silica gel; activated carbon; adsorbent; helium; silica gel; silicon dioxide; Adsorption characteristic; Dispersive components; Energy characterization; Granular silica gels; Inverse gas chromatography; Morphological characteristic; Morphological characterization; Surface energy analysis; adsorption; Article; comparative study; controlled study; inverse gas chromatography; isotherm; polarization; pore size; priority journal; surface area; surface property; Silica | English | 2020 | 2020-10-20 | 10.1016/j.colsurfa.2020.125209 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | The effect of labor unions on innovation and market valuation in business group affiliations: new evidence from South Korea | This paper examines how non-financial stakeholders, especially labor unions, affect firms' innovation in business group affiliations. Using firm-level labor union data unique to Korea, we find that firms' innovation activities are negatively related to unionization. This negative relationship is more pronounced for large business groups, suggesting that Korean chaebols are more concerned with the influence of powerful stakeholders-union workers. Also, equity market valuation of R&D reduction under union pressure is not negative for chaebol-affiliated firms, whereas it is negative for non-affiliated firms. These results indicate that the equity market perceives that chaebols' internal capital market facilitates group-oriented R&D investment decisions. | Shin, Ilhang; Park, Sorah; Cho, Seong Pyo; Choi, Seungho | Gachon Univ, Coll Business & Econ, 1342 Seongnamdaero, Seongnam Si 13120, Gyunggi Do, South Korea; Ewha Womans Univ, Ewha Sch Business, 52 Ewhayeodae Gil, Seoul 03760, South Korea; Kyungpook Natl Univ, Sch Business, 80 Daehakro, Daegu 41566, South Korea | ; Choi, Seungho/LIC-6009-2024; cho, Seongpyo/AAR-7588-2021 | 56231303700; 56230953700; 57211610276; 55736583100 | sorah.park@ewha.ac.kr; | ASIAN BUSINESS & MANAGEMENT | ASIAN BUS MANAG | 1472-4782 | 1476-9328 | 19 | 2 | SSCI | BUSINESS;MANAGEMENT | 2020 | 4.8 | 39.2 | 0.23 | 2025-06-25 | 6 | 3 | Labor union; Firm innovation; R&D expenditures; Korean chaebols | RESEARCH-AND-DEVELOPMENT; OWNERSHIP STRUCTURE; DEVELOPMENT INVESTMENT; COMPANIES; EARNINGS; PROFITABILITY; DETERMINANTS; UNIONIZATION; FLEXIBILITY; PERFORMANCE | Firm innovation; Korean chaebols; Labor union; R&D expenditures | English | 2020 | 2020-04 | 10.1057/s41291-019-00089-9 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Abiotic Transient Nitrite Occurrences from Nitrate Reduction through Goethite-Mediated Fe(III)/Fe(II) Cycle with Labile Organic Materials and Ammonia | The abiotic reduction of NO3- to NO2--coupled with the oxidation of labile organic materials such as citric acid, syringic acid and natural organic matter (NOM) and NH4+ through the goethite-mediated Fe(III)/Fe(II) cycle under anaerobic condition-was investigated at pH values of 4 and 7. The concentrations of the produced Fe2+ and NO2- were monitored. At a pH of 4, concentrations of Fe2+ increased, except for citric acid; no NO2- was detected. The reason why it was not detected is unclear. A possible reaction was the adsorption of NO2- onto goethite at pH > syringic acid > NOM. However, Fe2+ was not detected at this pH even though Fe2+ should be required for NO2- production. To better understand of these phenomena, the adsorptive removal of Fe2+ and NO2- onto goethite was experimentally investigated. More than 90% of the produced Fe2+ and NO2- could be removed rapidly by adsorption onto the surface of goethite at pH 7 and 4, respectively. In addition, the reaction of Fe2+ with NO3- appeared to determine the overall reaction rate of the Fe(III)/Fe(II) cycle because of its relatively slow reaction rate. Using these results, we conclude that NO2- can be produced from NO3- reduction through Fe(III)/Fe(II) cycle with labile organic materials and ammonium at a pH of 7; especially, Fe(III)/Fe(II) cycle with citric acid results the maximum NO2- production higher than 600 p.M for a long time (over 200 h) and then disappeared. But, the reasons for its disappearance were not addressed in this study. | Choi, Hyeoksun; Oh, Sanghwa | Wonkwang Univ, Dept Civil & Environm Engn, Iksan 54538, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea | 20336882200; 26665620700 | choihs@wonkwang.ac.kr;shoh@knu.ac.kr; | WATER | WATER-SUI | 2073-4441 | 12 | 4 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 0.7 | 2025-06-25 | 9 | 10 | ammonia; Fe(III)/Fe(II) cycle; citric acid; syringic acid; natural organic matter (NOM); nitrite; goethite | IRON; IMMOBILIZATION; OXIDATION; KINETICS; SOILS | Ammonia; Citric acid; Fe(III)/Fe(II) cycle; Goethite; Natural organic matter (NOM); Nitrite; Syringic acid | Ammonia; Citric acid; Reaction rates; Reduction; Abiotic reduction; Adsorptive removal; Anaerobic conditions; Natural organic matters; Nitrate reduction; Organic materials; Overall reactions; Point of zero charge; adsorption; ammonia; citric acid; goethite; nitrate; nitrite; organic matter; oxidation; reaction rate; reduction; Iron compounds | English | 2020 | 2020-04 | 10.3390/w12041202 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Accumulation Mechanism and Effects of Naturally Occurring Radioactive Materials in the Filters of Bottled Mineral-Water Facilities | Groundwater contains naturally occurring radioactive materials (NORMs) through water-rock interactions. Although a recent study found that the NORMs are accumulated into the filters utilized in bottled mineral-water facilities, the accumulation mechanism and effects have rarely been studied. This study is, therefore, conducted to determine the mechanism of NORM accumulation in filters during water treatment processes and to provide a first estimate of the level of radiological risk for workers in five bottled-mineral-water facilities. The level of Rn-222 decreased dramatically at the first filters (FF) encountered after passing through water storage tanks, while surface radiation sharply increased. The increase of radioactivity on the FF was mainly caused by the accumulation of short-lived radon progenies through decay processes inside the water tanks. Although the estimated radiological risk was lower under certain circumstances compared to the public dose limit of 1 mSv yr(-1), the radiological risk should be properly managed in case of direct and/or close handling of the used filters during filter replacement procedures. | Shin, Woosik; Jeong, Jina; Han, Jeong-Hee; Chang, Byung-Uck; Choung, Sungwook | Korea Basic Sci Inst KBSI, Res Ctr Geochronol & Isotope Anal, Cheongju 28119, South Korea; Kyungpook Natl Univ, Dept Geol, Daegu 41566, South Korea; Korea Inst Nucl Safety KINS, Daejeon 34142, South Korea | 57217222895; 55488558800; 57203488913; 56019556800; 36436826400 | sws3286@kbsi.re.kr;jeong.j@knu.ac.kr;hanjh@kbsi.re.kr;hafadai@kins.re.kr;schoung@kbsi.re.kr; | WATER | WATER-SUI | 2073-4441 | 12 | 4 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 0 | 2025-06-25 | 0 | 0 | naturally occurring radioactive materials; bottled-mineral-water facility; accumulation mechanism; filter; radiological risk | DRINKING-WATER; ARTIFICIAL RADIONUCLIDES; REVERSE-OSMOSIS; HEALTH-RISK; URANIUM; GROUNDWATER; REMOVAL; SLUDGE | Accumulation mechanism; Bottled-mineral-water facility; Filter; Naturally occurring radioactive materials; Radiological risk | Beverages; Groundwater; Minerals; Radioactive materials; Risk perception; Water treatment; Accumulation mechanisms; Bottled mineral waters; Filter replacement; Naturally occurring radioactive materials; Radiological risks; Water rock interactions; Water storage tanks; Water treatment process; groundwater pollution; health risk; radioactive waste; radioactivity; water storage; water treatment; water-rock interaction; Water tanks | English | 2020 | 2020-04 | 10.3390/w12040930 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Antibacterial action of lactoferricin B like peptide against Escherichia coli: reactive oxygen species-induced apoptosis-like death | Aims Emergence and rapid dissemination of antibiotic-resistant bacteria is becoming a severe problem to public health. The search for antimicrobial substitutes for antibiotics is necessary. Lactoferricin B like peptide (LBLP) is a 23-mer antimicrobial peptide (AMP), derived from the big centipede Scolopendra subspinipes mutilans. Although its antifungal effect and its mechanism have been reported, the antibacterial activity has not yet been elucidated. Method and Results In this study, we investigated antibacterial activity of LBLP and its mode of action. LBLP showed potent antibacterial effect against pathogenic bacteria Escherichia coli and did not show haemolytic activity against human erythrocyte. The general antimicrobial mechanism of AMP is to disrupt the cell membrane, however, LBLP exerted its antibacterial activity by causing apoptosis-like death through reactive oxygen species (ROS) generation. LBLP-treated E. coli cells exhibited hallmarks of apoptosis, such as membrane depolarization, DNA fragmentation, caspase-like protein activation and phosphatidylserine exposure. These apoptotic features were attenuated by pretreatment of NAC, a representative ROS scavenger. Conclusions These results demonstrate that LBLP exerted its antibacterial activity by generating ROS and inducing apoptosis-like death in E. coli. LBLP is not membrane destructive per se, but essentially a metabolic inhibitor. Significance and Impact of the Study Lactoferricin B like peptide is potential candidate to replace conventional antibiotics that are less effective because of its unique properties. | Lee, B.; Hwang, J. S.; Lee, D. G. | Kyungpook Natl Univ, Sch Life Sci, BK21 Plus KNU Creat BioRes Grp, Daegu 41566, South Korea; Natl Acad Agr Sci, Dept Agr Biol, RDA, Wonju, South Korea | Lee, Dong-Gun/IWD-9833-2023 | 57200106685; 16637012100; 55668060900 | dglee222@knu.ac.kr; | JOURNAL OF APPLIED MICROBIOLOGY | J APPL MICROBIOL | 1364-5072 | 1365-2672 | 129 | 2 | SCIE | BIOTECHNOLOGY & APPLIED MICROBIOLOGY;MICROBIOLOGY | 2020 | 3.772 | 39.3 | 1.3 | 2025-06-25 | 28 | 25 | antibacterial activity; antimicrobial peptide; bacterial apoptosis-like death; lactoferricin B like peptide; reactive oxygen species | ANTIMICROBIAL PEPTIDES; DNA-DAMAGE; MECHANISMS; ANTIBIOTICS; RESISTANCE; ROS | antibacterial activity; antimicrobial peptide; bacterial apoptosis-like death; lactoferricin B like peptide; reactive oxygen species | Animals; Anti-Bacterial Agents; Apoptosis; Arthropods; Escherichia coli; Humans; Lactoferrin; Peptides; Reactive Oxygen Species; Bacteria (microorganisms); Chilopoda; Escherichia coli; Scolopendra subspinipes; Antibiotics; Cell death; Escherichia coli; Oxygen; lactoferricin B; melittin; norfloxacin; phosphatidylserine; reactive oxygen metabolite; antiinfective agent; lactoferricin B; lactoferrin; peptide; reactive oxygen metabolite; Anti-bacterial activity; Antibacterial action; Antibiotic-resistant bacteria; Antifungal effect; Antimicrobial peptide; Bacterial apoptosis-like death; Induced apoptosis; Lactoferricin; Lactoferricin B like peptide; Reactive oxygen species; antibiotics; antimicrobial activity; apoptosis; coliform bacterium; induced response; membrane; peptide; reactive oxygen species; antibacterial activity; antifungal activity; apoptosis; Article; bacterial membrane; controlled study; DNA fragmentation; DNA strand breakage; drug mechanism; enzyme activation; Escherichia coli; hemolysis; membrane depolarization; nonhuman; oxidative stress; Scolopendra; Scolopendra subspinipes mutilans; animal; apoptosis; arthropod; chemistry; drug effect; Escherichia coli; human; metabolism; Peptides | English | 2020 | 2020-08 | 10.1111/jam.14632 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Biopolymer-Reinforced Levee for Breach Development Retardation and Enhanced Erosion Control | This study proposes an earthen levee reinforcement method with a new biopolymer-based material to prevent levee scour and breach. It is an eco-friendly method that can efficiently protect the levee slope as it enhances soil strength, even at a very low concentration of biopolymer, and has high resistance to surface runoff in addition to promoting vegetation growth. The function and effectiveness of this method were demonstrated through an overflow-based semi -scale experiment in a previous study. In this study, we examined the effect of biopolymer-mixed soil layer on levee stability against an overflow-induced breach. In these experiments, biopolymer-mixed soils were sprayed on the crest and land-side levee surface. Two full-scale tests were conducted (2.5-2.7 m high and 14 m wide on bottom). Case 1 (control case) consisted of bare sand without any treatment, while Case 2 consisted of a 1.0% biopolymer-mixed soil sprayed on the crest and landside slope of the levee and turf put on it. By applying an image analysis technique, we analyzed the breach phenomenon and breach retardation effect of the levee treated with a biopolymer and covered with vegetation. In this experiment, the slope loss rate of Case 2 was retarded 1.5 to 2.3 times over time as compared to Case 1. During the experiment, we observed that soil erosion followed through the narrow water channel formed by the stripped turfs. This means that the grasses did not root firmly enough to protect the surface. In this regard, although the experimental results may seem unsatisfactory, the biopolymer was found to help improve erosion retardation. In 2020, we will conduct more experiments with different compositions and concentrations of the biopolymer regardless of levee vegetation. With this research, we expect to confirm that the new technology of using biopolymer-treated soils is promising for solving the levee overflow breach problem. | Ko, Dongwoo; Kang, Joongu | Kyungpook Natl Univ, Sch Construct Disaster Prevent, Daegu 41566, South Korea; Korea Inst Civil Engn & Bldg Technol, River Expt Ctr, Goyang 10223, South Korea | 57194495071; 37361153000 | rhehddn84@gmail.com;jgkang02@kict.re.kr; | WATER | WATER-SUI | 2073-4441 | 12 | 4 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 0.96 | 2025-06-25 | 15 | 20 | levee; levee reinforcement; biopolymer; erosion control; levee breach; levee breach retardation; flood protection | GUM BIOPOLYMER; DAM | Biopolymer; Erosion control; Flood protection; Levee; Levee breach; Levee breach retardation; Levee reinforcement | Poaceae; Biomolecules; Biopolymers; Erosion; Levees; Reinforcement; Scour; Soils; Vegetation; Breach development; Full scale tests; High resistance; Image analysis techniques; Low concentrations; Reinforcement method; Retardation effect; Vegetation growth; concentration (composition); erosion control; image analysis; levee; polymer; reinforcement; runoff; soil erosion; soil strength; Embankments | English | 2020 | 2020-04 | 10.3390/w12041070 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Determination of Deep Learning Model and Optimum Length of Training Data in the River with Large Fluctuations in Flow Rates | Recently, developing countries have steadily been pushing for the construction of stream-oriented smart cities, breaking away from the existing old-town-centered development in the past. Due to the accelerating effects of climate change along with such urbanization, it is imperative for urban rivers to establish a flood warning system that can predict the amount of high flow rates of accuracy in engineering, compared to using the existing Computational Fluid Dynamics (CFD) models for disaster prevention. In this study, in the case of streams where missing data existed or only small observations were obtained, the variation in flow rates could be predicted with only the appropriate deep learning models, using only limited time series flow data. In addition, the selected deep learning model allowed the minimum number of input learning data to be determined. In this study, the time series flow rates were predicted by applying the deep learning models to the Han River, which is a highly urbanized stream that flows through the capital of Korea, Seoul and has a large seasonal variation in the flow rate. The deep learning models used are Convolution Neural Network (CNN), Simple Recurrent Neural Network (RNN), Long Short-Term Memory (LSTM), Bidirectional LSTM (Bi-LSTM) and Gated Recurrent Unit (GRU). Sequence lengths for time series runoff data were determined first to assess the accuracy and applicability of the deep learning models. By analyzing the forecast results of the outflow data of the Han River, sequence length for 14 days was appropriate in terms of the predicted accuracy of the model. In addition, the GRU model is effective for deep learning models that use time series data of the region with large fluctuations in flow rates, such as the Han River. Furthermore, through this study, it was possible to propose the minimum number of training data that could provide flood warning system with an effective flood forecasting system although the number of input data such as flow rates secured in new towns developed around rivers was insufficient. | Park, Kidoo; Jung, Younghun; Kim, Kyungtak; Park, Seung Kook | Kyungpook Natl Univ, Emergency Management Inst, Sangju 37224, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Adv Sci & Technol Convergence, Sangju 37224, Gyeongbuk, South Korea; Korea Inst Civil Engn & Bldg Technol, Goyang Si 10223, Gyeonggi Do, South Korea; Korea Res Inst Construct Policy, Seoul 07071, South Korea | 57204532542; 55195880200; 34881796700; 57221098764 | hydrol88@knu.ac.kr;y.jung@knu.ac.kr;ktkim1@kict.re.kr;skpark@ricon.re.kr; | WATER | WATER-SUI | 2073-4441 | 12 | 12 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 0.87 | 2025-06-25 | 15 | 18 | flood warning system; deep learning model; time-series flow rates; large seasonal variation; Simple RNN; CNN; LSTM; Bidirectional LSTM; GRU; sequence length; minimum number of training data | ARTIFICIAL NEURAL-NETWORK; EQUATIONS | Bidirectional LSTM; CNN; Deep learning model; Flood warning system; GRU; Large seasonal variation; LSTM; Minimum number of training data; Sequence length; Simple RNN; Time-series flow rates | Han River [Hubei-Shaanxi]; Seoul [Seoul (ADS)]; Seoul [South Korea]; South Korea; Climate change; Climate models; Computational fluid dynamics; Data streams; Developing countries; Disaster prevention; Flood control; Floods; Flow rate; Forecasting; Learning systems; Long short-term memory; Rivers; Time series; Accelerating effect; Convolution neural network; Flood forecasting; Flood warning system; Seasonal variation; Sequence lengths; Simple recurrent neural networks; Time-series data; artificial neural network; climate change; computational fluid dynamics; developing world; numerical model; runoff; smart city; urbanization; warning system; Deep learning | English | 2020 | 2020-12 | 10.3390/w12123537 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Flood Evacuation Routes Based on Spatiotemporal Inundation Risk Assessment | For flood risk assessment, it is necessary to quantify the uncertainty of spatiotemporal changes in floods by analyzing space and time simultaneously. This study designed and tested a methodology for the designation of evacuation routes that takes into account spatial and temporal inundation and tested the methodology by applying it to a flood-prone area of Seoul, Korea. For flood prediction, the non-linear auto-regressive with exogenous inputs neural network was utilized, and the geographic information system was utilized to classify evacuations by walking hazard level as well as to designate evacuation routes. The results of this study show that the artificial neural network can be used to shorten the flood prediction process. The results demonstrate that adaptability and safety have to be ensured in a flood by planning the evacuation route in a flexible manner based on the occurrence of, and change in, evacuation possibilities according to walking hazard regions. | Lee, Yoon Ha; Kim, Hyun Il; Han, Kun Yeun; Hong, Won Hwa | Hanyang Univ, Sustainable Bldg Mat & Construct Lab, Erica Campus,55 Hanyangdaehak Ro, Ansan 15588, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Dept Civil Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57218699556; 57205686299; 7402963477; 7401527968 | dldbsgk123@naver.com;hyuun228@gmail.com;kshanj@knu.ac.kr;hongwonhwa@gmail.com; | WATER | WATER-SUI | 2073-4441 | 12 | 8 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 1.22 | 2025-06-25 | 25 | 24 | spatiotemporal flood fluctuations; inundation risk assessment; evacuation route; artificial neural network; geographic information system | SUSCEPTIBILITY ASSESSMENT; MODEL; LIFE | Artificial neural network; Evacuation route; Geographic information system; Inundation risk assessment; Spatiotemporal flood fluctuations | Seoul [South Korea]; South Korea; Classification (of information); Hazards; Neural networks; Risk assessment; Uncertainty analysis; Auto-regressive; Evacuation routes; Exogenous input; Flood prediction; Flood prone area; Flood risk assessments; Space and time; Spatio-temporal changes; artificial neural network; flood control; GIS; hazard management; nonlinearity; prediction; risk assessment; spatiotemporal analysis; uncertainty analysis; Floods | English | 2020 | 2020-08 | 10.3390/w12082271 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Future Runoff Analysis in the Mekong River Basin under a Climate Change Scenario Using Deep Learning | In establishing adequate climate change policies regarding water resource development and management, the most essential step is performing a rainfall-runoff analysis. To this end, although several physical models have been developed and tested in many studies, they require a complex grid-based parameterization that uses climate, topography, land-use, and geology data to simulate spatiotemporal runoff. Furthermore, physical rainfall-runoff models also suffer from uncertainty originating from insufficient data quality and quantity, unreliable parameters, and imperfect model structures. As an alternative, this study proposes a rainfall-runoff analysis system for the Kratie station on the Mekong River mainstream using the long short-term memory (LSTM) model, a data-based black-box method. Future runoff variations were simulated by applying a climate change scenario. To assess the applicability of the LSTM model, its result was compared with a runoff analysis using the Soil and Water Assessment Tool (SWAT) model. The following steps (dataset periods in parentheses) were carried out within the SWAT approach: parameter correction (2000-2005), verification (2006-2007), and prediction (2008-2100), while the LSTM model went through the process of training (1980-2005), verification (2006-2007), and prediction (2008-2100). Globally available data were fed into the algorithms, with the exception of the observed discharge and temperature data, which could not be acquired. The bias-corrected Representative Concentration Pathways (RCPs) 4.5 and 8.5 climate change scenarios were used to predict future runoff. When the reproducibility at the Kratie station for the verification period of the two models (2006-2007) was evaluated, the SWAT model showed a Nash-Sutcliffe efficiency (NSE) value of 0.84, while the LSTM model showed a higher accuracy, NSE = 0.99. The trend analysis result of the runoff prediction for the Kratie station over the 2008-2100 period did not show a statistically significant trend for neither scenario nor model. However, both models found that the annual mean flow rate in the RCP 8.5 scenario showed greater variability than in the RCP 4.5 scenario. These findings confirm that the LSTM runoff prediction presents a higher reproducibility than that of the SWAT model in simulating runoff variation according to time-series changes. Therefore, the LSTM model, which derives relatively accurate results with a small amount of data, is an effective approach to large-scale hydrologic modeling when only runoff time-series are available. | Lee, Daeeop; Lee, Giha; Kim, Seongwon; Jung, Sungho | Kyungpook Natl Univ, Emergency Management Inst, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Construct & Disaster Prevent Engn, Sangju 37224, South Korea | 57202956223; 35069799400; 57217629889; 57209733155 | hydroeop@gmail.com;leegiha@knu.ac.kr;oper109@naver.com;wjdtjdgh1547@gmail.com; | WATER | WATER-SUI | 2073-4441 | 12 | 6 | SCIE | ENVIRONMENTAL SCIENCES;WATER RESOURCES | 2020 | 3.103 | 39.3 | 1.66 | 2025-06-25 | 28 | 36 | deep learning; LSTM; SWAT; climate change scenario; Mekong River | UNCERTAINTY ANALYSIS; CHANGE PROJECTIONS; CHANGE IMPACTS; PRECIPITATION; PREDICTION; EXTREMES | Climate change scenario; Deep learning; LSTM; Mekong river; SWAT | Cambodia; Kracheh; Mekong Basin; Climate change; Climate models; Deep learning; Forecasting; Land use; Model structures; Rain; Runoff; Time series; Topography; Climate change policies; Climate change scenarios; Effective approaches; Mekong river basins; Parameter correction; Rainfall-runoff models; Resource development; Soil and water assessment tool; algorithm; climate change; data quality; discharge; future prospect; machine learning; parameterization; rainfall-runoff modeling; river basin; runoff; scenario analysis; soil and water assessment tool; Long short-term memory | English | 2020 | 2020-06 | 10.3390/w12061556 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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