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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 | Hydrogen-Bond-Induced Crystallization in Low-Molar-Ratio Urea-Formaldehyde Resins during Synthesis | Low-molar-ratio urea-formaldehyde (UF) resins provide low formaldehyde emission at the expense of poor adhesion due to the formation of crystalline domains. We report for the first time the crystallization phenomenon during the synthesis stages of the resins. The molecular weights, thermal curing behaviors, chemical species, and crystallinities of the resins at each stage of the addition reaction, condensation reaction, condensation endpoint, and final stages were investigated with various techniques. As the synthesis proceeded, the molecular weight and peak temperature reached a maximum and decreased afterward. The X-ray diffraction (XRD) patterns also showed that crystalline structures in the addition reaction became amorphous in the condensation reaction and then formed crystalline domains in the final stage of resin synthesis. The crystalline domains were induced by hydrogen bonds between linear molecules resulting from the cleavage of oxymethylene and branched methylene ether linkages in the final stage after the second addition of urea. Thus, crystallization should be prevented during the synthesis of resins to improve their adhesion. | Wibowo, Eko Setio; Park, Byung-Dae; Causin, Valerio | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu 41566, South Korea; Univ Padua, Dept Sci Chim, I-135131 Padua, Italy | Wibowo, Eko/AAL-5888-2021; Park, Byung-Dae/ABB-1934-2020; Causin, Valerio/ABB-2444-2021 | 57214910272; 7402834820; 6602309019 | byungdae@knu.ac.kr; | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | IND ENG CHEM RES | 0888-5885 | 59 | 29 | SCIE | ENGINEERING, CHEMICAL | 2020 | 3.764 | 34.6 | 2.13 | 2025-06-25 | 39 | 45 | NMR-SPECTROSCOPY; BLUE-SHIFT; ADHESIVES; C-13; EMISSION; CRYSTALLINITY; MECHANISM; STRENGTH; WOOD; CURE | Adhesion; Condensation; Crystallization; Formaldehyde; Formation; Patterns; Synthesis; Urea; Addition reactions; Adhesion; Condensation; Condensation reactions; Curing; Formaldehyde; Hydrogen bonds; Metabolism; Molar ratio; Molecular weight; Molecules; Resins; Urea; Crystalline domains; Crystalline structure; Crystallization phenomenon; Formaldehyde emission; Induced crystallization; Linear molecules; Peak temperatures; Urea formaldehyde; Urea formaldehyde resins | English | 2020 | 2020-07-22 | 10.1021/acs.iecr.0c02268 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | A Pharmacokinetic Drug Interaction Between Fimasartan and Linagliptin in Healthy Volunteers | Objective: Fimasartan, an angiotensin II type 1 receptor blocker, and linagliptin, a dipeptidyl-peptidase-4 inhibitor, are frequently coadministered to treat patients with hypertension and diabetes, respectively. This study sought to evaluate the pharmacokinetic interactions between fimasartan and linagliptin after co-administration in healthy Korean subjects. Methods: The overall study was divided into two separate parts, with each part designed as an open-label, multiple-dose, two-period, and single-sequence study. In Part A, to investigate the effect of linagliptin on fimasartan, 25 subjects received 120 mg fimasartan alone once daily for seven days during Period I, and 120 mg fimasartan with 20 mg linagliptin for seven days during Period II. In Part B, to examine the effect of fimasartan on linagliptin, 12 subjects received only linagliptin once daily for seven days during Period I, followed by concomitant administration of fimasartan for seven days during Period II, at the same doses used in Part A. Serial blood samples were collected at scheduled intervals for up to 24 h after the last dose to determine the steady-state pharmacokinetics of both drugs. Results: Thirty-six subjects completed the study. The geometric mean ratio and 90% confidence intervals for maximum plasma concentration at steady state (C-max,C-ss) and area under the concentration-time curve at steady state (AUC(tau,ss)) of fimasartan with or without linagliptin were 1.2633 (0.9175-1.7396) and 1.1740 (1.0499-1.3126), respectively. The corresponding values for C-max,C-ss and AUC(tau,ss) of linagliptin with or without fimasartan were 0.9804 (0.8480-1.1336) and 0.9950 (0.9322-1.0619), respectively. A total of eight adverse events (AEs) were reported and the incidence of AEs did not increase significantly with co-administration of the drugs. Conclusion: Our results suggest that there are no clinically significant pharmacokinetic interactions between fimasartan and linagliptin when co-administered. Treatments were well tolerated during the study, with no serious adverse effects. | Kang, Woo Youl; Lee, Hae Won; Gwon, Mi-Ri; Cho, Seungil; Shim, Wang-Seob; Lee, Kyung-Tae; Yang, Dong Heon; Seong, Sook Jin; Yoon, Young-Ran | Kyungpook Natl Univ, Sch Med, Dept Mol Med, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Clin Pharmacol, Daegu, South Korea; Kyung Hee Univ, Kyung Hee Drug Anal Ctr, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Internal Med, Div Cardiol, Daegu 41944, South Korea | Yoon, Young-Ran/GLT-0172-2022 | 56816263900; 57202973823; 56035800800; 57194716563; 37034969500; 35170357600; 35277423400; 57211130049; 14629744500 | wintersj@knu.ac.kr;yry@knu.ac.kr; | DRUG DESIGN DEVELOPMENT AND THERAPY | DRUG DES DEV THER | 1177-8881 | 14 | SCIE | CHEMISTRY, MEDICINAL;PHARMACOLOGY & PHARMACY | 2020 | 4.162 | 34.7 | 0.19 | 2025-06-25 | 3 | 4 | fimasartan; pharmacokinetics; drug-drug interaction; linagliptin; safety | II RECEPTOR ANTAGONIST; ANGIOTENSIN; CROSSOVER | Drug; Drug interaction; Fimasartan; Linagliptin; Pharmacokinetics; Safety | Administration, Oral; Adult; Biphenyl Compounds; Dose-Response Relationship, Drug; Drug Interactions; Healthy Volunteers; Humans; Linagliptin; Male; Middle Aged; Pyrimidines; Tetrazoles; bilirubin; creatine kinase; fimasartan; linagliptin; triacylglycerol; biphenyl derivative; fimasartan; linagliptin; pyrimidine derivative; tetrazole derivative; adult; area under the curve; Article; bilirubin blood level; controlled study; creatine kinase blood level; diarrhea; disease severity; drug blood level; drug clearance; drug safety; drug tolerability; dyspepsia; human; human experiment; incidence; limit of quantitation; male; maximum concentration; normal human; protein urine level; randomized controlled trial; time to maximum plasma concentration; treatment duration; triacylglycerol blood level; trough concentration; upper respiratory tract infection; blood; clinical trial; dose response; drug interaction; middle aged; oral drug administration | English | 2020 | 2020 | 10.2147/dddt.s248205 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Integrating multi-criteria analysis with PDCA cycle for sustainable energy planning in Africa: Application to hybrid mini-grid system in Cameroon | Rural communities in Africa are often poorly electrified and rely on polluting fuels for energy. Apart from the attendant health effects and greenhouse gas emissions from these energy sources, these systems are unreliable and more costly especially in long term use. Proposing a renewable energy installation plan for these communities often creates conflicting scenarios; requiring prioritization and opportunity cost. An improved MCDM method is an ideal approach that can solve this problem properly. This paper thus proposes a hybrid model that is based on integrating AHP-VIKOR with the PDCA cycle, for continuous improvement of the planning process. AHP and VIKOR were utilized for multi-criteria ranking to determine the optimal hybrid technology combination. The uniqueness of this model is the management support characteristic of the PDCA cycle that provides coherence between the planning process and the actual project, as well as criticisms and responses for the proposed system. The results show that the selected hybrid energy system does not only guarantee a reliable system configuration with unmet load of 2.45 kWh/year, it also has economic benefits over the least cost system and a standard diesel generator system respectively: income from power sales of 3,816.7$/year and 745.11$/year; and savings from carbon pricing of 68,810.17$/year and 8,323,774.7$/year. | Nsafon, Benyoh Emmanuel Kigha; Butu, Hemen Mark; Owolabi, Abdulhameed Babatunde; Roh, Jong Wook; Suh, Dongjun; Huh, Jeung-Soo | Kyungpook Natl Univ, Grad Sch, Dept Climate Change & Energy, Daegu 41566, South Korea | ; Butu, Hemen/MBH-0863-2025 | 57211664452; 57214246289; 57192210107; 25638796100; 36613529600; 7102258915 | luxnsafon@yahoo.ca;jshuh@knu.ac.kr; | SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS | SUSTAIN ENERGY TECHN | 2213-1388 | 2213-1396 | 37 | SCIE | ENERGY & FUELS;GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | 2020 | 5.353 | 34.7 | 3.07 | 2025-06-25 | 68 | 79 | Multi-criteria analysis; Sustainability; Hybrid energy alternatives; PDCA cycle; Optimization | DECISION-MAKING; RURAL ELECTRIFICATION; REMOTE VILLAGES; POWER-SYSTEMS; VIKOR METHOD; TECHNOLOGIES; METHODOLOGY; GENERATION; SELECTION; INDIA | Hybrid energy alternatives; Multi-criteria analysis; Optimization; PDCA cycle; Sustainability | Cameroon; Economics; Energy policy; Gas emissions; Greenhouse gases; Hierarchical systems; Optimization; Renewable energy resources; Sustainable development; Continuous improvements; Hybrid energy; Hybrid energy system; Multi Criteria Analysis; Multi-criteria ranking; PDCA cycles; Renewable energy installations; Sustainable energy planning; alternative energy; analytical hierarchy process; energy planning; installation; multicriteria analysis; optimization; planning process; sustainability; Costs | English | 2020 | 2020-02 | 10.1016/j.seta.2020.100628 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Associations of eating alone with type D personality, depression and rejection sensitivity among South Korean university students | Purpose: To identify the associations of eating alone with type D personality, depression, and rejection sensitivity among South Korean university students. Design and Methods: Data were collected from 370 students recruited from five universities using a self-reported questionnaire. Findings: Eating alone had significant correlations with type D personality and depression. Significant factors affecting eating alone were age, place of residence, type D personality, and depression. These factors accounted for 17% in eating alone. | Lee, Eunmi; Kim, Yujeong; Lee, Haeyoung | Hoseo Univ, Dept Nursing, Asan, Chungcheongnam, South Korea; Kyungpook Natl Univ, Coll Nursing, 680 Gukchabosangro, Daegu 41944, South Korea; Chung Ang Univ, Red Cross Coll Nursing, Seoul, South Korea | ; Lee, Eunmi/AAS-2561-2020; Lee, Haeyoung/NRA-8461-2025 | 57202264064; 57200941945; 57205471062 | cybericu@naver.com; | PERSPECTIVES IN PSYCHIATRIC CARE | PERSPECT PSYCHIATR C | 0031-5990 | 1744-6163 | 56 | 2 | SCIE;SSCI | NURSING;PSYCHIATRY | 2020 | 2.186 | 34.8 | 0.42 | 2025-06-25 | 7 | 5 | depression; eating behavior; personality; rejection; young adult | BEHAVIOR; RISK; LINK | depression; eating behavior; personality; rejection; young adult | Cross-Sectional Studies; Depression; Feeding Behavior; Female; Humans; Male; Personality; Personality Assessment; Regression Analysis; Rejection, Psychology; Republic of Korea; Self Report; Students; Type D Personality; Universities; Young Adult; article; feeding behavior; human; human experiment; major clinical study; nursing practice; questionnaire; type D behavior; university student; young adult; cross-sectional study; depression; feeding behavior; female; male; personality; personality assessment; psychology; regression analysis; self report; South Korea; student; university | English | 2020 | 2020-04 | 10.1111/ppc.12420 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Blockchain Expansion to secure Assets with Fog Node on special Duty | Blockchain expansion is the high priority necessity to improve security. Hacking and other attacks are headway from system innovation and security measures for the cloud architecture. That is why the countermeasure deployed for such attacks should act in an opportune way and ought to be situated as close as possible to attacking device. As an example, DDoS attacks were not that complex as they are getting now with the new technology known as IoT. Imagine the consequences if 25 billion of IoT devices generate a huge amount of data for DDoS attacks. That is why we propose a new framework that can expand blockchain in a manner where more companies can share their resources to enhance security. So, we proposed a new and complete framework with cloud, fog, to secure configuration files with blockchain technology. Our framework considers the configuration files from SDN or NFV as an asset to secure with blockchain. By saving configuration files into blockchain, we can detect illegal changes occurred to configuration files after hacking attack. This study also focuses on expanding blockchain between the multiple service providers with ease to prevent waste of resources. This paper mainly provides opportunities for different could or companies to secure their assets by employing the power of blockchain and smart contracts. | Gul, M. Junaid; Rehman, Abdul; Paul, Anand; Rho, Seungmin; Riaz, Rabia; Kim, Jeonghong | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu, South Korea; Univ Azad Jammu & Kashmir, Muzaffarabad, Pakistan; Sejong Univ, Seoul, South Korea | ; Riaz, Rabia/HJI-6429-2023; Rho, Seungmin/HTP-6683-2023; Gul, Malik junaid jami/O-1392-2018; Gul, Malik/O-1392-2018; Rehman, Abdul/D-5630-2019; Paul, Anand/V-6724-2017 | 57203752948; 57200894071; 56650522400; 10738984000; 24475180100; 55138548100 | paul.editor@gmail.com;jhk@knu.ac.kr; | SOFT COMPUTING | SOFT COMPUT | 1432-7643 | 1433-7479 | 24 | 20 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS | 2020 | 3.643 | 34.9 | 1.63 | 2025-06-25 | 13 | 15 | Blockchain; Fog; Cloud; DDoS; FNOSD (fog node on special duty); IoT | BIG DATA ANALYTICS; IOT APPLICATIONS; INTERNET; DDOS; CHALLENGES; PRIVACY; THINGS | Blockchain; Cloud; DDoS; FNOSD (fog node on special duty); Fog; IoT | Blockchain; Clouds; Denial-of-service attack; Expansion; Fog; Network security; Personal computing; Cloud architectures; Configuration files; DDoS; FNOSD (fog node on special duty); Multiple services; Secure configuration; System innovations; Waste of resources; Internet of things | English | 2020 | 2020-10 | 10.1007/s00500-020-04857-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Multi-objective optimal power flow solutions using a constraint handling technique of evolutionary algorithms | In power systems, optimal power flow (OPF) is a complex and constrained optimization problem in which quite often multiple and conflicting objectives are required to be optimized. The traditional way of dealing with multi-objective OPF (MOOPF) is the weighted sum method which converts the multi-objective OPF into a single-objective problem and provides a single solution from the set of Pareto solutions. This paper presents MOOPF study applying multi-objective evolutionary algorithm based on decomposition (MOEA/D) where a set of non-dominated solutions (Pareto solutions) can be obtained in a single run of the algorithm. OPF is formulated with two or more objectives among fuel (generation) cost, emission, power loss and voltage deviation. The other important aspect in OPF problem is about satisfying power system constraints. As the search process adopted by evolutionary algorithms is unconstrained, for a constrained optimization problem like OPF, static penalty function approach has been extensively employed to discard infeasible solutions. This approach requires selection of a suitable penalty coefficient, largely done by trial-and-error, and an improper selection may often lead to violation of system constraints. In this paper, an effective constraint handling method, superiority of feasible solutions (SF), is used in conjunction with MOEA/D to handle network constraints in MOOPF study. The algorithm MOEA/D-SF is applied to standard IEEE 30-bus and IEEE 57-bus test systems. Simulation results are analyzed, especially for constraint violation and compared with recently reported results on OPF. | Biswas, Partha P.; Suganthan, P. N.; Mallipeddi, R.; Amaratunga, Gehan A. J. | Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore, Singapore; Kyungpook Natl Univ, Daegu, South Korea; Univ Cambridge, Dept Engn, Cambridge, England | Biswas, P/F-6696-2019; Suganthan, Ponnuthurai/A-5023-2011; Mallipeddi, Rammohan/AAL-5306-2020 | 57194043616; 7003996538; 25639919900; 35592328300 | parthapr001@e.ntu.edu.sg;epnsugan@ntu.edu.sg;mallipeddi.ram@gmail.com;gaja1@hermes.cam.ac.uk; | SOFT COMPUTING | SOFT COMPUT | 1432-7643 | 1433-7479 | 24 | 4 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS | 2020 | 3.643 | 34.9 | 7.92 | 2025-06-25 | 74 | 85 | Multi-objective optimal power flow; Cost; Emission; MOEA/D algorithm; Superiority of feasible solutions (SF) | IMPERIALIST COMPETITIVE ALGORITHM; OPTIMIZATION; EMISSION; MOEA/D; COST; DECOMPOSITION; LOSSES; WIND | Cost; Emission; MOEA/D algorithm; Multi-objective optimal power flow; Superiority of feasible solutions (SF) | Acoustic generators; Constrained optimization; Constraint satisfaction problems; Costs; Genetic algorithms; Neutron emission; Constrained optimi-zation problems; Constraint-handling techniques; Feasible solution; Multi objective evolutionary algorithms; Multi-objective optimal power flow; Nondominated solutions; Penalty function approach; Power system constraints; Electric load flow | English | 2020 | 2020-02 | 10.1007/s00500-019-04077-1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Fluid Infiltration and Mass Transfer along a Lamprophyre Dyke-Marble Contact: An Example from the South-Western Korean Peninsula | In this contribution, we report the metasomatic characteristics of a lamprophyre dyke-marble contact zone from the Hongseong-Imjingang belt along the western Gyeonggi Massif, South Korea. The lamprophyre dyke intruded into the dolomitic marble, forming a serpentinized contact zone. The zone consists of olivine, serpentine, calcite, dolomite, biotite, spinel, and hematite. Minor F and Cl contents in the serpentine and biotite indicate the composition of the infiltrating H2O-CO(2)fluid. SiO2(12.42 wt %), FeO (1.83 wt %), K2O (0.03 wt %), Sr (89 ppm), U (0.7 ppm), Th (1.44 ppm), and rare earth elements (REEs) are highly mobile, while Zr, Cr, and Ba are moderately mobile in the fluid. Phase equilibria modelling suggests that the olivine, spinel, biotite, and calcite assemblage might be formed by the dissolution of dolomite at similar to 700 degrees C, 130 MPa. Such modelling requires stable diopside in the observed conditions in the presence of silica-saturated fluid. The lack of diopside in the metasomatized region is due to the high K activity of the fluid. Our log activity K2O (a(K2O))-temperature pseudosection shows that at a(K2O similar to)-40, the olivine, spinel, biotite, and calcite assemblage is stable without diopside. Subsequently, at similar to 450 degrees C, 130 MPa, serpentine is formed due to the infiltration of H2O during the cooling of the lamprophyre dyke. This suggests that hot H2O-CO2 fluids with dissolved major and trace elements infiltrated through fractures, grain boundaries, and micron-scale porosity, which dissolved dolomite in the marble and precipitated the observed olivine-bearing peak metasomatic assemblage. During cooling, exsolved CO2 could increase the water activity to stabilize the serpentine. Our example implies that dissolution-reprecipitation is an important process, locally and regionally, that could impart important textural and geochemical variations in metasomatized rocks. | Noh, Jungrae; Kim, Changyeob; Samuel, Vinod O.; Jang, Yirang; Park, Seung-Ik; Kwon, Sanghoon | Yonsei Univ, Dept Earth Syst Sci, Seoul 03722, South Korea; Chonnam Natl Univ, Dept Earth & Environm Sci, Gwangju 61186, South Korea; Kyungpook Natl Univ, Dept Geol, Daegu 41566, South Korea | 57205458522; 57219095603; 56068101600; 55366462500; 55832472000; 7402624141 | jrnoh@yonsei.ac.kr;kcy0202@yonsei.ac.kr;vosamuel@gmail.com;yirangjang@gmail.com;psi@knu.ac.kr;skwon@yonsei.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 9 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 0.39 | 2025-06-25 | 6 | 5 | dyke-marble contact; metasomatism; dissolution-precipitation; phase equilibria; H2O-CO2 fluid; K activity | METASOMATIC REACTION VEINS; SILICEOUS DOLOMITES; PHASE-EQUILIBRIA; METAMORPHISM; EVOLUTION; AUREOLE; ZONE; MECHANISMS; EQUATION; DEPOSIT | Dissolution-precipitation; Dyke–marble contact; H<sub>2</sub> O-CO<sub>2</sub> fluid; K activity; Metasomatism; Phase equilibria | English | 2020 | 2020-09 | 10.3390/min10090828 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Geochemical Behavior of Potentially Toxic Elements in Riverbank-Deposited Weathered Tailings and Their Environmental Effects: Weathering of Pyrite and Manganese Pyroxene | Uncontrolled management of mine tailings can cause serious environmental problems. Red and black deposits of weathered mine tailings are observed in the upstream of the Nakdong River in Korea, washed away from abandoned mines during floods. Herein, the geochemical and mineralogical changes that occur during weathering of these deposited mine tailings and the mobility of resulting potentially toxic elements were investigated. Primarily, johansennite (manganese pyroxene) was identified in the deposits. Goethite and jarosite were identified as secondary minerals in the red or brown layers. Manganese oxide (MnO) formed by the weathering of johansennite in the black layers and schwertmannite in the red and brown layers were also identified via energy-dispersive X-ray spectroscopy. The three most abundant potentially toxic elements in the residual and iron and manganese oxide fractions were Zn, Pb and As. The high percentage of potentially toxic elements in these oxide fractions indicated that the weathering products of pyrite and manganese pyroxene were crucial in fixing these elements, and MnO likely played an important role in controlling the behavior of heavy metals. In addition, metals were detected in significant concentrations in the exchangeable and carbonate-bound fractions, which can be toxic to the river's ecological system. | Kim, Yeongkyoo | Kyungpook Natl Univ, Sch Earth Syst Sci, Daegu 41566, South Korea | 7410207179 | ygkim@knu.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 5 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 0.48 | 2025-06-25 | 8 | 8 | tailing weathering; potentially toxic element; goethite; manganese oxide; johansennite | ACID-MINE DRAINAGE; SEQUENTIAL EXTRACTION; HEAVY-METALS; PHASE-TRANSFORMATION; TRACE-METALS; IRON-OXIDES; MOBILITY; FE; ZN; COPRECIPITATION | Goethite; Johansennite; Manganese oxide; Potentially toxic element; Tailing weathering | English | 2020 | 2020-05 | 10.3390/min10050413 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM) | The salinity influence on the adsorptions of Ni and Zn onto phosphate-intercalated nano montmorillonite (PINM) were investigated. Single adsorption isotherm models fitted the single adsorption data well. The adsorption capacity of Ni was higher than that of Zn onto PINM at different salinities. The single adsorption parameters from Langmuir model (Q(mL) and b(L)) were compared with the binary adsorption (QmL* and bL*). The QmL* of Zn was lower than that of Ni. The simultaneous presence of Ni and Zn decreased the adsorption capacities. The single and binary adsorptions onto PINM were affected by the salinity. The competitive Langmuir model (CLM), P-factor, Murali and Aylmore (M-A) models, and ideal adsorbed solution theory (IAST) were satisfactory in predicting the binary adsorption data; the CLM showed the best fitting results. Our results showed that the PINM can be used as an active Ni and Zn adsorbent for a permeable reactive barrier (PRB) in the remediation of saline groundwater. | Choi, Jiyeon; Septian, Ardie; Shin, Won Sik | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea | Septian, Ardie/HGB-8696-2022 | 57211707591; 57201503612; 23019870800 | iamchoig@gmail.com;ardieseptian@knu.ac.kr;wshin@knu.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 11 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 0.29 | 2025-06-25 | 5 | 5 | adsorption; binary; nickel; salinity; zinc | HEAVY-METAL IONS; ACTIVATED CARBON; AQUEOUS-SOLUTION; SORPTION CHARACTERISTICS; COMPETITIVE ADSORPTION; MODIFIED ZEOLITE; ISOTHERM MODELS; NI(II) IONS; WATER; DYES | Adsorption; Binary; Nickel; Salinity; Zinc | English | 2020 | 2020-11 | 10.3390/min10110980 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Microstructural and Geochronological Analyses of Mesozoic Ductile Shear Zones in the Western Gyeonggi Massif, Korea: Implications for an Orogenic Cycle in the East Asian Continental Margin | In response to orogenic cycles, the ductile shear zone records a complex crustal deformation history. In this study, we conducted a microstructural analysis of two NW-SE trending ductile shear zones (Deokjeok Shear Zone (DSZ) and Soya Shear Zone (SSZ)) in the Late Triassic post-collisional granites along the western Gyeonggi Massif in the Korean Peninsula. The DSZ, overlain by the Late Triassic to the Early Jurassic post-collisional basin fill (Deokjeok Formation), has asymmetric microstructures indicative of a top-down-to-the-northeast shear. Depending on the structural position, the SSZ, which structurally overlies the Deokjeok Formation, exhibits two contrasting styles of deformation. The lower portion of the SSZ preserves evidence of top-up-to-the-southwest shearing after top-down-to-the-northeast shearing; on the other hand, the upper portion only indicates a top-up movement. Given the primary deformation mechanisms of both quartz and feldspar, the deformation temperatures of DSZ and SSZ were estimated at similar to 300-350 degrees C and similar to 350-400 degrees C, respectively, indicative of the mid-crustal condition. New zircon U-Pb isotopic ages from mylonitic granite in the SSZ and volcanic rocks in the Deokjeok Formation, combined with previously published geochronological data, indicate that the post-collisional granites and volcano-sedimentary sequence were nearly contemporaneous (ca. 223-217 Ma) and juxtaposed because of the Late Triassic orogenic collapse and subsequent new orogenic event. In this study, we highlight the role of the extensional DSZ as a detachment propagated into the middle crust during the Late Triassic orogenic collapse. Our results report a deformational response to a transition from the collisional Songrim Orogeny to the subduction-related Daebo Orogeny in the western Gyeonggi Massif. This, in turn, provides essential insight into cyclic mountain building/collapse in the East Asian continental margin during the Mesozoic time. | Park, Jeong-Yeong; Park, Seung-Ik; Choi, Taejin | Kyungpook Natl Univ, Dept Geol, Daegu 41566, South Korea; Chosun Univ, Dept Energy & Resources Engn, Gwangju 61452, South Korea | ; Choi, Taejin/KHU-0729-2024 | 57216587299; 55832472000; 34975182800 | wjddud93@knu.ac.kr;psi@knu.ac.kr;tchoi@chosun.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 4 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 0.77 | 2025-06-25 | 12 | 11 | ductile shear zone; microstructure; deformation condition; Gyeonggi Massif; Mesozoic orogenic cycle; East Asian continental margin | METAMORPHIC CORE COMPLEXES; SOUTH-KOREA; U-PB; TECTONIC EVOLUTION; DAEIJAK ISLAND; TECTONOMETAMORPHIC EVOLUTION; PRECAMBRIAN BASEMENT; DETACHMENT FAULTS; COLLISION BELT; PLUTONIC ROCKS | Deformation condition; Ductile shear zone; East Asian continental margin; Gyeonggi Massif; Mesozoic orogenic cycle; Microstructure | English | 2020 | 2020-04 | 10.3390/min10040362 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Physicochemical Characteristics of the Birnessite and Todorokite Synthesized Using Various Methods | The synthesis methods used to produce todorokite (10 angstrom manganate, OMS-1) and birnessite (7 angstrom manganate), which are abundant in marine manganese nodules, have been studied to confirm whether pure mineral phases can be obtained and to compare their physicochemical characteristics. The physicochemical characteristics of todorokite and its precursor Na-birnessite can vary widely based on the precursors used during their synthesis. Birnessite can be synthesized via three mechanisms, i.e., the oxidation of Mn2+, a redox reaction between Mn2+ and MnO4-, or the reduction of MnO4-. Herein, four precursors are used to synthesize birnessite using different methods before being transformed into todorokite. The characteristics of the birnessite and todorokite synthesized using different methods are investigated via X-ray diffraction (XRD), chemical analysis, Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and field emission scanning electron microscopy (SEM). Based on the method used, birnessite and todorokite exhibit distinct physicochemical features, including crystallinity, crystal structure, specific surface area, oxidation state of manganese, thermal stability, and morphology. Thus, the characteristics of birnessite and todorokite are closely correlated, indicating the importance of designing suitable methods to synthesize them for specific applications. | Min, Soyoung; Kim, Yeongkyoo | Kyungpook Natl Univ, Sch Earth Syst Sci, Daegu 41566, South Korea | 57218166663; 7410207179 | soyoung9207@knu.ac.kr;ygkim@knu.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 10 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 1.65 | 2025-06-25 | 27 | 27 | manganese oxides; birnessite; todorokite; synthesis mechanism; characterization | OCTAHEDRAL MOLECULAR-SIEVES; RAY PHOTOELECTRON-SPECTROSCOPY; SOL-GEL SYNTHESIS; MANGANESE OXIDE; ION-EXCHANGE; ELECTROCHEMICAL PROPERTIES; ADSORPTION BEHAVIOR; RIETVELD REFINEMENT; MULTIPLET STRUCTURE; MINE DRAINAGE | Birnessite; Characterization; Manganese oxides; Synthesis mechanism; Todorokite | English | 2020 | 2020-10 | 10.3390/min10100884 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Removal of Salicylic and Ibuprofen by Hexadecyltrimethylammonium-Modified Montmorillonite and Zeolite | The removal of salicylic acid (SA) and ibuprofen (IB) by sorption onto HDTMA-modified montmorillonite (HM) and zeolite (HZ) was investigated at pH 7. The single sorption data were fitted well by the Freundlich, Langmuir, Dubinin-Radushkevich (DR), and Polanyi-Dubinin-Manes (PDM) models (R-2 > 0.94). The sorption affinity of Freundlich and the maximum sorption capacity of Langmuir and PDM models of pharmaceuticals onto HM were consistently higher than that of HZ mainly owing to the higher organic carbon content. In addition, the K-F, q(mL), and q(m) values were in the order of IB > SA owing to higher hydrophobicity and molar volume. Since the predominant speciation of SA and IB is anionic at pH 7 (>pKa), sorption onto HM occurs mainly by the two-dimensional surface adsorption onto the pseudo-organic medium in the HM, whereas the interaction of anionic pharmaceuticals with the positively charged "head" of HDTMA is responsible for HZ. Sorption isotherms were fitted well by the PDM model, which indicated that pore-filling was one of the dominating sorption mechanisms. The extended Langmuir model, modified Langmuir competitive model, and ideal adsorbed solution theory employed with Freundlich and Langmuir sorption models were applied to predict binary sorption. The effect of competition between the solutes was clearly evident in the characteristic curves; the maximum sorbed volume (q(v.m)) was reduced, and the sorbed volume (q(v)) had a wider distribution toward the sorption potential density. | Choi, Jiyeon; Shin, Won Sik | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea | 57211707591; 23019870800 | iamchoig@gmail.com;wshin@knu.ac.kr; | MINERALS | MINERALS-BASEL | 2075-163X | 10 | 10 | SCIE | GEOCHEMISTRY & GEOPHYSICS;MINERALOGY;MINING & MINERAL PROCESSING | 2020 | 2.644 | 35.0 | 1.26 | 2025-06-25 | 19 | 22 | binary; HDTMA-montmorillonite; HDTMA-zeolite; pharmaceuticals; Polanyi theory; sorption | SURFACTANT-MODIFIED ZEOLITE; COMPETITIVE SORPTION; AQUEOUS-SOLUTIONS; WASTE-WATER; ORGANIC-CHEMICALS; DICLOFENAC SODIUM; ADSORPTION; ACID; EQUILIBRIUM; NAPHTHALENE | Binary; HDTMA-montmorillonite; HDTMA-zeolite; Pharmaceuticals; Polanyi theory; Sorption | English | 2020 | 2020-10 | 10.3390/min10100898 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Alleviation of Ulcerative Colitis Potentially through th1/th2 Cytokine Balance by a Mixture of Rg3-enriched Korean Red Ginseng Extract and Persicaria tinctoria | Ginseng is a vastly used herbal supplement in Southeast Asian countries. Red ginseng extract enriched with Rg3 (Rg3-RGE) is a formula that has been extensively studied owing to its various biological properties. Persicaria tinctoria (PT), belonging to the Polygonaceae family, has also been reported for its anti-inflammatory properties. Ulcerative colitis (UC) is inflammation of the large intestine, particularly in the colon. This disease is increasingly common and has high probability of relapse. We investigated, separately and in combination, the effects of Rg3-RGE and PT using murine exemplary of UC induced by DSS (Dextran Sulfate Sodium). For in vitro and in vivo experiments, nitric oxide assay, qRT-Polymerase Chain Reaction (PCR), Western blot, ulcerative colitis introduced by DSS, Enzyme Linked Immunosorbent Assay (ELISA), and flow cytometry analysis were performed. The results obtained demonstrate that treatment with Rg3-RGE + PT showed synergism to suppress inflammation (in vitro) in RAW 264.7 cells via mitogen-activated protein kinase and nuclear factor kappa B pathways. Moreover, in C57BL/6 mice, this mixture exhibits strong anti-inflammatory effects in restoring colon length, histopathological damage, pro-inflammatory mediators, and cytokines amount, and decreasing levels of NLRP3 inflammasome (in vivo). Our results recommend that this mixture can be used for the prevention of UC as a prophylactic/therapeutic supplement. | Saba, Evelyn; Lee, Yuan Yee; Rhee, Man Hee; Kim, Sung-Dae | Pir Mehr Ali Shah Arid Agr Univ, Fac Vet & Anim Sci, Dept Vet Biomed Sci, Rawalpindi 46000, Pakistan; Kyungpook Natl Univ, Dept Vet Med, Coll Vet Med, Daegu 41566, South Korea; Dongnam Inst Radiol & Med Sci, Res Ctr, Busan 46033, South Korea | ; Yuan Yee, Lee/ABH-8956-2022; Rhee, Man/O-5705-2016; Saba, Evelyn/JLN-1878-2023 | 56721112000; 57203798815; 57211035357; 55156746000 | evelyn.saba@uaar.edu.pk;yuanyeelee@knu.ac.kr;rheemh@knu.ac.kr;sdkim@dirams.co.kr; | MOLECULES | MOLECULES | 1420-3049 | 25 | 22 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, MULTIDISCIPLINARY | 2020 | 4.412 | 35.1 | 0.57 | 2025-06-25 | 15 | 14 | Rg3-RGE; Persicaria tinctoria; ulcerative colitis; NF-κ B; NLRP3 | ANTIOXIDANT; ACTIVATION; INDUCTION; EFFICACY; CELLS; MICE; AIT.; DSS | NF-κB; NLRP3; Persicaria tinctoria; Rg3-RGE; ulcerative colitis | Animals; Anti-Inflammatory Agents; Caryophyllales; Colitis, Ulcerative; Enzyme-Linked Immunosorbent Assay; Inflammation; Inflammation Mediators; Male; MAP Kinase Signaling System; Mice; Mice, Inbred C57BL; Nitric Oxide; Panax; Plant Extracts; RAW 264.7 Cells; Signal Transduction; Th1-Th2 Balance; antiinflammatory agent; autacoid; nitric oxide; plant extract; animal; C57BL mouse; Caryophyllales; chemistry; enzyme linked immunosorbent assay; inflammation; male; MAPK signaling; metabolism; mouse; Panax; RAW 264.7 cell line; signal transduction; Th1 Th2 balance; ulcerative colitis | English | 2020 | 2020-11 | 10.3390/molecules25225230 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Ammonium Phosphate as Inhibitor to Mitigate the Corrosion of Steel Rebar in Chloride Contaminated Concrete Pore Solution | In the present study, different amounts, i.e., 1-3v/v% of 1 M ammonium phosphate monobasic, were used as an eco-friendly corrosion inhibitor to mitigate the corrosion of steel rebar exposed to simulated concrete pore (SCP) + 3.5 wt% NaCl solution at a prolonged duration. Potentiodynamic polarization results show that as the amount of inhibitor is increased, the corrosion resistance of steel rebar is increased. The steel rebar exposed to 3% inhibitor-containing SCP + 3.5 wt% NaCl solution exhibited nobler corrosion potential (E-corr), the lowest corrosion current density (i(corr)), and 97.62% corrosion inhibition efficiency after 1 h of exposure. The steel rebars exposed to 3% inhibitor-containing SCP + 3.5 wt% NaCl solution revealed higher polarization resistance (R-p) and film resistance (R-o) with exposure periods compared to other samples owing to the formation of passive film. The scanning electron microscopy (SEM) of steel rebar exposed to 3% inhibitor-containing SCP + 3.5 wt% NaCl solution showed homogenous and uniform dendritic passive film which covers all over the surface, whereas, bare, i.e., SCP + 3.5 wt% NaCl solution exposed samples exhibited pitting and irregular morphology. Raman spectroscopy results confirm the formation of goethite (alpha-FeOOH), maghemite (gamma-Fe2O3), and iron phosphate (FePO4) as a passive film onto the steel rebar surface exposed to 3% inhibitor-containing SCP + 3.5 wt% NaCl solution. These phases are responsible for the corrosion mitigation of steel rebar which are very protective, adherent, and sparingly soluble. | Mandal, Soumen; Singh, Jitendra Kumar; Lee, Dong-Eun; Park, Taejoon | Kyungpook Natl Univ, Intelligent Construct Automat Ctr, 80 Daehak Ro, Daegu 41566, South Korea; Hanyang Univ, Dept Architectural Engn, Innovat Durable Bldg & Infrastruct Res Ctr, 1271 Sa3 Dong, Ansan 15588, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy, 1370 Sangyegk Dong, Daegu 702701, South Korea; Hanyang Univ, Dept Robot Engn, 55 Hanyangdaehak Ro, Ansan 15588, Gyeonggi Do, South Korea | ; Mandal, Soumen/AAB-3917-2021; Singh, Jitendra/AAU-6579-2021 | 57214752240; 57197846307; 56605563300; 55717001200 | sou.chm@gmail.com;jk200386@hanyang.ac.kr;dolee@knu.ac.kr;taejoon@hanyang.ac.kr; | MOLECULES | MOLECULES | 1420-3049 | 25 | 17 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, MULTIDISCIPLINARY | 2020 | 4.412 | 35.1 | 0.98 | 2025-06-25 | 23 | 22 | steel; corrosion; inhibitor; concrete; potentiodynamic polarization; electrochemical impedance spectroscopy; scanning electron microscopy; raman spectroscopy | SATURATED CA(OH)(2) SOLUTION; SIMULATED CONCRETE; CARBON-STEEL; REINFORCED-CONCRETE; ELECTROCHEMICAL-BEHAVIOR; CALCIUM NITRITE; MILD-STEEL; IONS; PROTECTION; MECHANISM | Concrete; Corrosion; Electrochemical impedance spectroscopy; Inhibitor; Potentiodynamic polarization; Raman spectroscopy; Scanning electron microscopy; Steel | Construction Materials; Corrosion; Phosphates; Sodium Chloride; Steel; ammonium phosphate; phosphate; sodium chloride; steel; building material; chemistry; corrosion | English | 2020 | 2020-09 | 10.3390/molecules25173785 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | An Overview on Graphene-Metal Oxide Semiconductor Nanocomposite: A Promising Platform for Visible Light Photocatalytic Activity for the Treatment of Various Pollutants in Aqueous Medium | Graphene is one of the most favorite materials for materials science research owing to its distinctive chemical and physical properties, such as superior conductivity, extremely larger specific surface area, and good mechanical/chemical stability with the flexible monolayer structure. Graphene is considered as a supreme matrix and electron arbitrator of semiconductor nanoparticles for environmental pollution remediation. The present review looks at the recent progress on the graphene-based metal oxide and ternary composites for photocatalysis application, especially for the application of the environmental remediation. The challenges and perspectives of emerging graphene-based metal oxide nanocomposites for photocatalysis are also discussed. | Mandal, Soumen; Mallapur, Srinivas; Reddy, Madhusudana; Singh, Jitendra Kumar; Lee, Dong-Eun; Park, Taejoon | Kyungpook Natl Univ, Intelligent Construct Automat Ctr, 80 Daehak Ro, Daegu 41566, South Korea; REVA Univ, Dept Chem, Bangalore 560024, Karnataka, India; Hanyang Univ, Dept Architectural Engn, Innovat Durable Bldg & Infrastruct Res Ctr, 1271 Sa3 Dong, Ansan 15588, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy, 1370 Sangyegk Dong, Daegu 702701, South Korea; Hanyang Univ, Dept Robot Engn, 55 Hanyangdaehak Ro, Ansan 15588, Gyeonggi Do, South Korea | ; Mallapur, Srinivas/GSI-4519-2022; Singh, Jitendra/AAU-6579-2021; Reddy, Madhusudana/AAD-1414-2019; Mandal, Soumen/AAB-3917-2021 | 57214752240; 57190860098; 36055226600; 57197846307; 56605563300; 55717001200 | sou.chm@gmail.com;seenuseenum@gmail.com;madhusudana.mb@reva.edu.in;jk200386@hanyang.ac.kr;dolee@knu.ac.kr;taejoon@hanyang.ac.kr; | MOLECULES | MOLECULES | 1420-3049 | 25 | 22 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, MULTIDISCIPLINARY | 2020 | 4.412 | 35.1 | 0.27 | 2025-06-25 | 12 | 15 | graphene oxide; metal oxides; semiconductor; photocatalysis; dyes | HYDROTHERMAL SYNTHESIS; METHYLENE-BLUE; RHODAMINE-B; TIO2; DEGRADATION; ADSORPTION; COMPOSITE; PHOTODEGRADATION; NANOSTRUCTURES; NANOMATERIALS | dyes; graphene oxide; metal oxides; photocatalysis; semiconductor | Catalysis; Graphite; Light; Nanocomposites; Semiconductors; Water Pollutants, Chemical; graphene oxide; graphite; nanocomposite; catalysis; chemistry; isolation and purification; light; radiation response; semiconductor; water pollutant | English | 2020 | 2020-11 | 10.3390/molecules25225380 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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