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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 | Green Nanocomposite for the Adsorption of Toxic Dyes Removal from Colored Waters | The discharge of dyes from textile industries led to a broad range of toxicological and environmental effects, posing severe health issues for humans and animals worldwide. These dyes are highly stable and, if not adequately treated, remain in the environment for extended periods. Adsorption, the most efficient and cost-effective method, offers unique advantages for using natural adsorbents, such as marble waste composites, for dye removal. The easy availability of marble waste, its low cost, its eco-friendly nature, its ease of operation, its simplicity of design, its flexibility, and its great affinity for dyes make it a suitable option for dye removal. Golden marble waste nanocomposites are prepared for dye removal. The results from the studies suggested that treated golden marble composite materials exhibit better adsorption efficiency (224.8, 299.5, and 369.2 mg/g) for adsorptive removal of dyes than untreated golden marble composite materials (114.4 mg/g). This research also used isothermic and kinetic models to evaluate the effects of numerous parameters, for example, the initial dye concentration, pH, time, temperature, and adsorbent dose. The highest removal of 369.9 mg/g was achieved during the present study for blue dye at an optimized pH of 7 and a temperature of 30 degrees C. It was observed that golden marble waste composites gave better R-2 (0.99) values for second-order kinetics in the kinetic model. Results obtained from comparing Langmuir, Freundlich, Temkin, Dubinin, and Herkin Jura isotherms showed that the R-2 values of the Langmuir isotherm for Foron red (0.97), the Temkin isotherm for Foron blue (0.98), and the Freundlich isotherm for Foron black dye (0.97) fit on adsorption for both treated and untreated composites. Characterization techniques, such as scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), are also discussed for the structural determination of golden marble waste composites. | Akbar, Ishaa; Hanif, Muhammad Asif; Rashid, Umer; Bhatti, Ijaz Ahmad; Khan, Rais Ahmad; Kazerooni, Elham Ahmed | Univ Agr Faisalabad, Dept Chem, Nano & Biomat Lab, Faisalabad 38040, Pakistan; Univ Putra Malaysia, Inst Nanosci & Nanotechnol ION2, Serdang 43400, Selangor, Malaysia; King Saud Univ, Coll Sci, Chem Dept, 1145, Riyadh, Saudi Arabia; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea | ; Bhatti, Ijaz/AAC-6483-2020; Mukhtar, Prof. Hamid/AAI-8651-2020; Khan, Rais Ahmad/ABC-6766-2020; Hanif, Muhammad Asif/AAA-9846-2019 | 58032828100; 58399216100; 16031556400; 14022290900; 24573845100; 57191375873 | umer.rashid@upm.edu.my; | COATINGS | COATINGS | 2079-6412 | 12 | 12 | SCIE | MATERIALS SCIENCE, COATINGS & FILMS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 3.4 | 35.3 | 0.97 | 2025-06-25 | 5 | 14 | golden marble waste composites; Foron dyes; adsorption; SEM; FTIR | WASTE-WATER; AQUEOUS-SOLUTION; METHYLENE-BLUE; DECOLORIZATION; POLLUTION | adsorption; Foron dyes; FTIR; golden marble waste composites; SEM | English | 2022 | 2022-12 | 10.3390/coatings12121955 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Impact of Multi-Walled CNT Incorporation on Dielectric Properties of PVDF-BaTiO3 Nanocomposites and Their Energy Harvesting Possibilities | The current study investigated the fabrication of multi-walled carbon nanotubes (MWCNTs) adhering to Barium titanate (BaTiO3) nanoparticles and poly(vinylidene fluoride) (PVDF) nanocomposites, as well as the impact of MWCNT on the PVDF-BaTiO3 matrix in terms of dielectric constant and dielectric loss with a view to develop a high performance piezoelectric energy harvester in future. The capacity and potential of as-prepared nanocomposite films for the fabrication of high-performance flexible piezoelectric nanogenerator (PNG) were also investigated in this work. In particular, five distinct types of nanocomposites and films were synthesized: PB (bare PVDF-BaTiO3), PBC-1 (PVDF-BaTiO3-0.1 wt% CNT), PBC-2 (PVDF-BaTiO3-0.3 wt% CNT), PBC-3 (PVDF-BaTiO3-0.5 wt% CNT), and PBC-4 (PVDF-BaTiO3-1 wt% CNT). The dielectric constant and dielectric loss increased as MWCNT concentration increased. Sample PBC-3 had the optimum dielectric characteristics of all the as-prepared samples, with the maximum output voltage and current of 4.4 V and 0.66 mu A, respectively, with an applied force of ~2N. Fine-tuning the BaTiO3 content and thickness of the PNGs is likely to increase the harvester's performance even more. It is anticipated that the work would make it easier to fabricate high-performance piezoelectric films and would be a suitable choice for creating high-performance PNG. | Uddin, Abu Sadat M. Iftekhar; Lee, Dongin; Cho, Chanseob; Kim, Bonghwan | Daegu Catholic Univ, Sch Elect & Elect Engn, Gyongsan 38430, Gyeongbuk, South Korea; Yeungnam Univ, Dept Informat & Commun Engn, Gyongsan 38541, Gyeogbuk, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | 57430896100; 55668477600; 24471515900; 24833360700 | iftekhar@metrouni.edu.bd;dilee65@yu.ac.kr;chocs@knu.ac.kr;bhkim@cu.ac.kr; | COATINGS | COATINGS | 2079-6412 | 12 | 1 | SCIE | MATERIALS SCIENCE, COATINGS & FILMS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 3.4 | 35.3 | 2.18 | 2025-06-25 | 30 | 27 | PVDF-BaTiO3-xCNT nanocomposite; piezoelectric nanogenerator; flexible; dielectric properties | POLYMER COMPOSITES; CARBON NANOTUBES; GRAPHENE; NANOGENERATOR; CONSTANT; STRENGTH; DENSITY; PHASES; BETA; FILM | Dielectric properties; Flexible; Piezoelectric nanogenerator; PVDF–BaTiO<sub>3</sub>-xCNT nanocomposite | English | 2022 | 2022-01 | 10.3390/coatings12010077 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Improvement in nonvolatile memory operations for metal-ferroelectric-insulator-semiconductor capacitors using HfZrO2 and ZrO2 thin films as ferroelectric and insulator layers | Metal-ferroelectric-insulator-semiconductor (MFIS) capacitors were characterized to elucidate the optimum design schemes for the ferroelectric field-effect transistor applications. The Hf1-x Zr (x) O-2 (HZO) thin films (18 nm) were prepared on the SiO2 and ZrO2 insulator layers (ILs) with different film thicknesses. The choice of 10 nm thick ZrO2 IL was found to be an optimum condition to properly balance between the values of electric fields applied to the HZO (E (HZO)) and ZrO2 (E (IL)) layers, leading to effective improvement in capacitance coupling ratio and to suppression of charge injection for the MFIS capacitors. Furthermore, the crystalline natures of the crystallized HZO films were also found to be strategically controlled on the ZrO2 ILs, which can additionally enhance the E (HZO) with reducing the E (IL). As consequences, the MFIS capacitors using 10 nm thick ZrO2 IL exhibited the ferroelectric memory window as large as 2.5 V at an application of +/- 5 V, which corresponds to 2.7 times wider value, compared to that obtained from the device using 2 nm thick SiO2 IL. Long-time memory retention and robust program endurance were also verified for the fabricated MFIS capacitors. | Kim, Yeriaron; Kang, Seung Youl; Woo, Jiyong; Kim, Jeong Hun; Im, Jong-Pil; Yoon, Sung-Min; Moon, Seung Eon | Elect & Telecommun Res Inst, Emerging Nanomat Res Sect, Daejeon 34129, South Korea; Kyung Hee Univ, Dept Adv Mat Engn Informat & Elect, Yongin 17104, Gyeonggi Do, South Korea; Univ Sci & Technol, Dept Adv Device Engn, Daejeon 34113, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Yoon, Minjoong/B-1162-2008; Kang, Seung-Youl/JDD-8544-2023 | 57207444978; 7405686721; 53985749100; 57194613724; 57204538127; 7404035863; 7401616067 | sungmin@khu.ac.kr;semoon@etri.re.kr; | JOURNAL OF PHYSICS D-APPLIED PHYSICS | J PHYS D APPL PHYS | 0022-3727 | 1361-6463 | 55 | 33 | SCIE | PHYSICS, APPLIED | 2022 | 3.4 | 35.3 | 0.1 | 2025-06-25 | 1 | 1 | ferroelectric field-effect; metal-ferroelectric-insulator-semiconductor (MFIS); memory window; memory retention; program endurance | OXIDES; IMPACT | ferroelectric field-effect; memory retention; memory window; metal-ferroelectric-insulator-semiconductor (MFIS); program endurance | Electric field effects; Ferroelectric thin films; Ferroelectricity; Field effect transistors; Silica; Silicon; Ferroelectric field-effect; Ferroelectric fields; Field-effect; Insulator layer; Memory retention; Memory window; Metal ferroelectric insulator semiconductor capacitors; Metal ferroelectric insulator semiconductors; Metal-ferroelectric-insulator-semiconductor; Program endurance; Zirconia | English | 2022 | 2022-08-18 | 10.1088/1361-6463/ac7179 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Physico-Chemical Origins of Electrical Characteristics and Instabilities in Solution-Processed ZnSnO Thin-Film Transistors | We investigate the physico-chemical origins that determine the transistor characteristics and stabilities in sol-gel processed zinc tin oxide (ZTO) thin-film transistors (TFTs). ZTO solutions with Sn/(Sn+Zn) molar ratios from 0.3 to 0.6 were synthesized to demonstrate the underlying mechanism of the electrical characteristics and bias-induced instabilities. As the Sn/(Sn+Zn) ratio of ZTO is increased, the threshold voltage of the ZTO TFTs negatively shifts owing to the gradual increase in the ratio of oxygen vacancies. The ZTO TFTs with an Sn/(Sn+Zn) ratio of 0.4 exhibit highest saturation mobility of 1.56 cm(2)/Vs lowest subthreshold swing and hysteresis of 0.44 V/dec and 0.29 V, respectively, due to the desirable atomic states of ZTO thin film. Furthermore, these also exhibit outstanding positive bias stability due to the low trap density at the semiconductor-dielectric interface. On the other hand, the negative bias stress-induced instability gradually increases as the proportion of tin increases because the negative bias stress instability originates from the ionization of oxygen vacancies. These results will contribute to the optimization of the composition ratio in rare-metal-free oxide semiconductors for next-generation low-cost electronics. | Wang, Ziyuan; Jeon, Sang-Hwa; Hwang, Yu-Jin; Lee, Sin-Hyung; Jang, Jaewon; Kang, In Man; Kim, Do-Kyung; Bae, Jin-Hyuk | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea; LG Display, Paju 10845, South Korea | Lee, Sin-Hyung/ABD-6425-2022; , Do Kyung Kim/A-5289-2008 | 57552166900; 57552166800; 57553088900; 57226880204; 57194107504; 7203062678; 57984042900; 35326180700 | kdk7362@knu.ac.kr;jhbae@ee.knu.ac.kr; | COATINGS | COATINGS | 2079-6412 | 12 | 10 | SCIE | MATERIALS SCIENCE, COATINGS & FILMS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 3.4 | 35.3 | 0.16 | 2025-06-25 | 2 | 2 | zinc tin oxide; composition ratio; physico-chemical; bias stability; electrical properties; thin-film transistors; solution-process | ILLUMINATION INSTABILITY; HIGH-MOBILITY; PERFORMANCE; TEMPERATURE; VOLTAGE; BIAS | bias stability; composition ratio; electrical properties; physico-chemical; solution-process; thin-film transistors; zinc tin oxide | English | 2022 | 2022-10 | 10.3390/coatings12101534 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Zn-Ni Alloy Plating with Trivalent Chromate: Effects of NaF Additive Concentration and Treatment Time on Film Color, Thickness, and Electrochemical Properties | Zn-Ni alloy plating is widely applied in manufacturing of automobile and construction material components because it provides better corrosion resistance and wear resistance than Zn plating. Furthermore, chromate coating treatment is gaining attention with respect to improving the corrosion resistance of Zn-Ni alloys. In this study, we investigated the effects of NaF additive concentration and treatment time on trivalent chromate coating, which has been developed as an alternative to hexavalent chromate coating. The chromate post-treatment solution used in this study comprises Cr(NO3)(3)center dot 9H(2)O (360 g/L), CoSO4 center dot 7H(2)O (40 g/L), and HNO3 (35 mL/L), to which NaF is added in the concentration range of 0-30 g/L. The as-formed coating films at 1.6 pH and 60 degrees C treatment temperature for deposition times ranging from 30 to 120 s demonstrated a decreasing corrosion rate as the NaF concentration increased. The electrochemical and morphological analyses inferred that NaF acted as a catalyst, enhancing the rate of film formation. Furthermore, the film thickness increased with the treatment time, and the film color changed in the order of yellow, purple, and green. | Son, Byung-Ki; Choi, Ji-Won; Jeon, Su-Byung; Son, Injoon | Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; ILSUNG Plating Co Ltd, R&D Ctr, Daegu 42697, South Korea | 57877801800; 57878356800; 57878356900; 9942975800 | ijson@knu.ac.kr; | COATINGS | COATINGS | 2079-6412 | 12 | 8 | SCIE | MATERIALS SCIENCE, COATINGS & FILMS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 3.4 | 35.3 | 0.4 | 2025-06-25 | 5 | 5 | Zn-Ni alloy plating; trivalent chromate coating; NaF additive; treatment time; corrosion resistance; cracks; film color; film thickness; chromate film; passivation | CR(III)-BASED CONVERSION COATINGS; CORROSION-RESISTANCE; IMMERSION TIME; ELECTRODEPOSITION; PERFORMANCE; MORPHOLOGY; BEHAVIOR | chromate film; corrosion resistance; cracks; film color; film thickness; NaF additive; passivation; treatment time; trivalent chromate coating; Zn–Ni alloy plating | English | 2022 | 2022-08 | 10.3390/coatings12081160 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Safety evaluation of Lactococcus lactis IDCC 2301 isolated from homemade cheese | For applications of microorganisms as probiotics in the food industry, safety evaluation has increasingly become important to ensure the health of consumers. Although people have been using various lactic acid bacteria for different purposes, some studies have reported that certain lactic acid bacteria exhibit properties of virulence and produce toxic compounds. Thus, it is necessary to examine the characteristics associated with lactic acid bacteria that are safe for use as probiotics. This research aimed to assess the safety of Lactococcus lactis IDCC 2301 isolated from homemade cheese using in vitro and in vivo assays, including antibiotic resistance, hemolytic activity, toxin production, infectivity, and metabolic activity in immune-compromised animal species. The results demonstrated that the strain was susceptible to nine antibiotics suggested by the European Food Safety Authority (EFSA). Whole-genome analysis revealed that L. lactis IDCC 2301 neither has toxigenic genes nor harbors antibiotic resistance. Moreover, L. lactis IDCC 2301 showed neither hemolytic nor beta-glucuronidase activity. Furthermore, none of the D-lactate and biogenic amines were produced by L. lactis IDCC 2301. Finally, it was demonstrated that there was no toxicity and mortality using single-dose oral toxicity tests in rats. These results indicate that L. lactis IDCC 2301 can be safely used as probiotics for human consumption. | Kim, Taeok; Mondal, Shakti Chandra; Jeong, Chae-Rim; Kim, So-Rim; Ban, O-Hyun; Jung, Young Hoon; Yang, Jungwoo; Kim, Soo-Jung | Chonnam Natl Univ, Dept Integrat Food Biosci & Biotechnol, Gwangju 61186, South Korea; Ildong Biosci, Gyeonggi Do 17957, South Korea; Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu, South Korea; Kyungpook Natl Univ, Inst Fermentat Biotechnol, Daegu, South Korea | ; Mondal, Dr. Shakti Chandra/ABB-7439-2020; Jung, Young/F-1703-2013 | 57340644100; 57207912327; 57340222800; 57340120900; 57219226382; 55550063700; 56076383700; 57092299400 | yjw@ildong.com;bioksj@jnu.ac.kr; | FOOD SCIENCE & NUTRITION | FOOD SCI NUTR | 2048-7177 | 10 | 1 | SCIE | FOOD SCIENCE & TECHNOLOGY | 2022 | 3.9 | 35.6 | 1.23 | 2025-06-25 | 12 | 14 | homemade cheese; Lactococcus lactis IDCC2301; probiotics; safety evaluation | ANTIBIOTIC-RESISTANCE; ACID BACTERIA; PROBIOTICS; LACTOBACILLI | English | 2022 | 2022-01 | 10.1002/fsn3.2648 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Adsorption characteristics of Cs and cation selectivity of todorokite | Todorokite has a high ion exchange capacity and can be a good adsorbent to fix Cs. Here, the adsorption behavior of Cs and the cation selectivity of two todorokites synthesized using two different methods (Oxi-TOD and Red-TOD) were investigated by kinetic and isotherm experiments. Todorokite exhibited a range of physicochemical properties depending on the synthesis method, while the Cs adsorption capacity also varied accordingly. Todorokite, possessing a high specific surface area and pore volume combined with the low average oxidation state of the manganese ion, exhibited a high adsorption capacity. The todorokite attained adsorption equilibrium within 48 h and followed the pseudo-second model. For the adsorption isotherm models, the correlation coefficient was high in the Langmuir model by linear regression and in the Redlich-Peterson model by nonlinear regression. For the adsorption experiment, todorokite had at least two adsorption sites for Cs: a high adsorption preference site with small capacity and a low adsorption preference site with large capacity. The result of the competition experiment between Cs and other cations showed that the ion selectivity was generally similar between the two todorokites except for Cs, K, and Rb, which exhibited similar ionic radii. The selectivity for Oxi-TOD was Li < Na < K < Rb, Cs < Sr while that for Red-TOD was Li < Na < K, Rb, Cs < Sr. | Min, Soyoung; Kim, Yeongkyoo | Kyungpook Natl Univ, Sch Earth Syst Sci, Daegu 41566, South Korea | 57218166663; 7410207179 | ygkim@knu.ac.kr; | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | COLLOID SURFACE A | 0927-7757 | 1873-4359 | 650 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 5.2 | 35.7 | 0.22 | 2025-06-25 | 4 | 3 | Todorokite; Synthesis method; Cesium adsorption; Kinetic model; Isotherm model; Cation selectivity | SOL-GEL SYNTHESIS; MICROPOROUS MANGANESE OXIDES; OCTAHEDRAL MOLECULAR-SIEVES; ION-EXCHANGE; ISOTHERM MODELS; HEAVY-METALS; BIRNESSITE; SORPTION; CRYSTALLIZATION; BEHAVIOR | Cation selectivity; Cesium adsorption; Isotherm model; Kinetic model; Synthesis method; Todorokite | Adsorption isotherms; Cesium; Ion exchange; Physicochemical properties; Positive ions; cation; cesium; lithium; manganese; potassium; rubidium; sodium; todorokite; unclassified drug; Adsorption behaviour; Adsorption characteristic; Cation selectivity; Cesium adsorption; Ion exchange capacity; Isotherm modeling; Kinetic models; Synthesis method; Synthesised; Todorokites; adsorption; aqueous solution; Article; cation exchange; correlation coefficient; desorption; ion exchange; kinetics; oxidation; partition coefficient; physical chemistry; pore size; pore volume; scanning electron microscopy; surface area; surface property; synthesis; thermodynamics; water content; X ray diffraction; X ray photoemission spectroscopy; Adsorption | English | 2022 | 2022-10-05 | 10.1016/j.colsurfa.2022.129652 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | B-GPS: Blockchain-Based Global Positioning System for Improved Data Integrity and Reliability | When surveying national reference points using a global positioning system (GPS), appropriate work regulations pertaining to the surveying time must be observed. However, such data can be modified easily, so identifying non-compliance with work regulations and forgeries is challenging. If such incidents occur in cadastral surveys, it may result in financial damages to stakeholders, such as citizens and the state. Therefore, it is necessary to improve the reliability by ensuring the integrity of the GPS positioning data and allowing anyone to track them. In this study, a prototype system was developed to record GPS data and the corrections generated during survey processes using the Ethereum blockchain network. Blockchain is a distributed ledger system that prevents the manipulation of uploaded data without the need for a centralized institution by allowing anyone to check the data. Unlike in the past, the proposed system improves the data integrity and reliability for the entire survey process through blockchain, thereby ensuring transparency of the checks using smart contract addresses. | Lee, Seunghyeon; Seok, Hong-Woo; Lee, Ki-rim; In, Hoh Peter | Korea Univ, Dept Comp Sci, Seoul 02841, South Korea; Inha Univ, Dept Geoinformat Engn, Incheon 22212, South Korea; Kyungpook Natl Univ, Dept Spatial Informat, Daegu 41566, South Korea | ; Seok, Hong-Woo/HSF-1615-2023 | 59844853300; 57220752318; 57193932338; 8980732300 | 2square@korea.ac.kr;hwseok@inha.edu;geolee@knu.ac.kr;hoh_in@korea.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 11 | 3 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;GEOGRAPHY, PHYSICAL;REMOTE SENSING | 2022 | 3.4 | 35.7 | 0.67 | 2025-06-25 | 5 | 7 | blockchain; smart contract; GPS positioning; data integrity; data reliability | CORS | Blockchain; Data integrity; Data reliability; GPS positioning; Smart contract | English | 2022 | 2022-03 | 10.3390/ijgi11030186 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Cluster Nested Loop k-Farthest Neighbor Join Algorithm for Spatial Networks | This paper considers k-farthest neighbor (kFN) join queries in spatial networks where the distance between two points is the length of the shortest path connecting them. Given a positive integer k, a set of query points Q, and a set of data points P, the kFN join query retrieves the k data points farthest from each query point in Q. There are many real-life applications using kFN join queries, including artificial intelligence, computational geometry, information retrieval, and pattern recognition. However, the solutions based on the Euclidean distance or nearest neighbor search are not suitable for our purpose due to the difference in the problem definition. Therefore, this paper proposes a cluster nested loop join (CNLJ) algorithm, which clusters query points (data points) into query clusters (data clusters) and reduces the number of kFN queries required to perform the kFN join. An empirical study was performed using real-life roadmaps to confirm the superiority and scalability of the CNLJ algorithm compared to the conventional solutions in various conditions. | Cho, Hyung-Ju | Kyungpook Natl Univ, Dept Software, 2559 Gyeongsang Daero, Sangju Si 37224, South Korea | 55177091600 | hyungju@knu.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 11 | 2 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;GEOGRAPHY, PHYSICAL;REMOTE SENSING | 2022 | 3.4 | 35.7 | 0.1 | 2025-06-25 | 1 | 1 | cluster nested loop join; k-farthest neighbor join; spatial network; shared execution | REVERSE FURTHEST NEIGHBORS; ROAD NETWORKS; SHORTEST-PATH; QUERIES | Cluster nested loop join; K-farthest neighbor join; Shared execution; Spatial network | English | 2022 | 2022-02 | 10.3390/ijgi11020123 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Development of a Conceptual Data Model for 3D Geospatial Road Management Based on LandInfra Standard: A Case Study of Korea | In practice, road management data are typically managed in two-dimensional (2D) geospatial forms. However, 2D geographic information system (GIS)-based road infrastructure management data have limitations in their representation of complex roads, such as interchanges, bridges, and tunnels. As such, complex and large road network management data cannot be adequately managed in a 2D GIS-based form. This study discusses the use of the LandInfra standard for road infrastructure management in Korea, considering its focus on land and civil engineering infrastructure facilities. To facilitate the transition from 2D to 3D GIS, we analyzed existing road management models of road pavement and road register information and created Unified Modeling Language (UML) class diagrams depicting these models. Then, existing road management classes and LandInfra classes were mapped. Based on the results, we propose a road management model based on the Facility, Alignment, and Road parts of LandInfra. For its implementation, several classes of the proposed data model were encoded into InfraGML using real-world data input. Taken together, this study shows how the LandInfra standard can be extended and applied to the field of road infrastructure management in Korea, supporting the transition from a 2D to a 3D GIS-based model. | Buuveibaatar, Munkhbaatar; Lee, Kangjae; Lee, Wonhee | Kyungpook Natl Univ, Res Inst Artificial Intelligent Diag Technol Mult, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea | ; Buuveibaatar, Munkhbaatar/ISU-9533-2023 | 57219182724; 56040328200; 57190774365 | munkh@knu.ac.kr;kasbiss@knu.ac.kr;wlee33@knu.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 11 | 5 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;GEOGRAPHY, PHYSICAL;REMOTE SENSING | 2022 | 3.4 | 35.7 | 0.58 | 2025-06-25 | 5 | 6 | road; highway; road infrastructure management; LandInfra; InfraGML; 3D GIS | 3D GIS; highway; InfraGML; LandInfra; road; road infrastructure management | English | 2022 | 2022-05 | 10.3390/ijgi11050316 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Morphology-dependent photocatalytic and photoelectrochemical performance of bismuth oxybromide crystals applied to malachite green dye degradation | Bismuth oxybromide (BiOBr) has received notable attention as a possible active solar photocatalyst with ratio-nally high catalytic yield, although it still requires further alteration to enhance the photocatalytic activity. In this work, the BiOBr microstructures are synthesized in a controlled manner using two bromide sources, i.e., ammonium bromide (NH4Br) and cetyltrimethylammonium bromide (CTAB), which has been found to have a significant effect on the architecture of the BiOBr photocatalyst. CTAB induces the formation of 3D spherical hierarchical microflowers with curved nanoflakes, while NH4Br results in the formation of 3D flower-like open petal structures. The nature of final BiOBr products which were synthesized with different bromide sources is studied by their photo-electrocatalytic performances with a series of analytical techniques. The CTAB-assisted synthetic BiOBr sample (BiOBr-CT) showed the best photocatalytic and photoelectrochemical activities compared to NH4Br-assisted BiOBr (BiOBr-NH). BiOBr-CT shows a rate constant of 0.057 min-1 for the degra-dation of malachite green dye which is mostly used in the textile industry. | Vattikuti, S. V. Prabhakar; Bach, Lai Xuan; Devarayapalli, Kamakshaiah Charyulu; Reddy, Amara N. R.; Shim, Jaesool; Julien, Christian M. | Yeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea; Duy Tan Univ, Inst Fundamental & Appl Sci, Future Mat & Devices Lab, Ho Chi Minh City, Vietnam; Duy Tan Univ, Fac Nat Sci, Da Nang 550000, Vietnam; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, 80 Daehak Ro, Daegu, South Korea; Malla Reddy Coll Engn & Technol, Maisammaguda Rd, Hyderabad 500100, Telangana, India; Sorbonne Univ, Inst Mineral Phys Materiaux & Cosmochimie IMPMC, CNRS UMR 7590, 4 Pl Jussieu, F-75252 Paris, France | VATTIKUTI, S/I-5237-2019; Julien, Christian/AEX-0293-2022; Manchuri, Amaranadha Reddy/J-3982-2016 | 57542619100; 57203820492; 15069351300; 55199045800; 16040548500; 55588326900 | christian.julien@sorbonne-universite.fr; | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | COLLOID SURFACE A | 0927-7757 | 1873-4359 | 655 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 5.2 | 35.7 | 1.09 | 2025-06-25 | 13 | 15 | Bismuth oxybromide; Microflowers; Photocatalysts; Malachite green degradation; Photoelectrochemical cell | HYDROTHERMAL SYNTHESIS; BIOBR NANOSHEETS; COMPOSITES; NANOPARTICLES; REMOVAL; BIOCL; HETEROJUNCTIONS; CONSTRUCTION; OXIDATION; SOLVENTS | Bismuth oxybromide; Malachite green degradation; Microflowers; Photocatalysts; Photoelectrochemical cell | Bismuth compounds; Bromine compounds; Carbonate minerals; Dyes; Morphology; Photocatalytic activity; Rate constants; Textile industry; bismuth derivative; cetrimide; malachite green; Bismuth oxybromide; Cetyltrimethylammonium bromide; Dye degradation; Green dye; Malachite green; Malachite green degradation; Microflowers; Photocatalytic performance; Photoelectrochemical performance; Synthesised; analytic method; Article; chronoamperometry; controlled study; crystal; crystal structure; electrochemistry; electron spin resonance; Fourier transform; illumination; impedance spectroscopy; linear sweep voltammetry; particle size; photocatalysis; photochemistry; photodegradation; polarimetry; pore size; rate constant; scanning electron microscopy; surface area; X ray diffraction; Photoelectrochemical cells | English | 2022 | 2022-12-20 | 10.1016/j.colsurfa.2022.130267 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | One-step fabrication of pH-responsive microcapsules with aqueous cargo using aqueous two-phase system | A new approach was developed to generate the pH-responsive poly(polyethylene glycol-co-acrylic acid) poly (PEG-co-AA) microcapsules by in-situ photopolymerization of the water-in-water-in-oil (W/W/O) double emulsion droplets (DEDs) in the microfluidic channel. The two immiscible W solutions used in the microfluidic preparation of the W/W/O DED were prepared with two phase-separated aqueous phases obtained from the socalled aqueous two-phase system (ATPS) by adding (NH4)2SO4 salts to the aqueous PEG diacrylate/AA mixture solution. The waterborne cargo could be directly loaded into the water phase at the core of the W/W/O DED during the microfluidic production. The produced microcapsules were shown to be smartly responsive to pH change and recyclable, and their in-situ and ex-situ cargo loading and releasing properties were demonstrated using fluorescein isothiocyanate dextrans with different molecular weights. This new one-step microfluidic fabrication method of pH-responsive microcapsules can be used to load other valuable waterborne cargos at the core of the pH-responsive microcapsule. | Tan, Hao; Park, Soo -Young | Kyungpook Natl Univ, Dept Polymer Sci & Engn, Polymer Nano Mat Lab, Daegu 41566, South Korea | park, soo-young/N-3170-2017 | 56895457900; 57194041850 | psy@knu.ac.kr; | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | COLLOID SURFACE A | 0927-7757 | 1873-4359 | 650 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 5.2 | 35.7 | 0.22 | 2025-06-25 | 4 | 3 | Microfluidics; Double emulsion droplet; Smart hydrogel; Aqueous two-phase system | POLYACRYLIC-ACID; RELEASE; DROPLETS; ADSORPTION; CELLS | Aqueous two-phase system; Double emulsion droplet; Microfluidics; Smart hydrogel | Drops; Emulsification; Emulsions; Fabrication; Microstructure; Nitrogen compounds; Photopolymerization; Polyethylene glycols; Solvent extraction; fluorescein isothiocyanate; fluorescein isothiocyanate dextran; water oil cream; Aqueous two-phase systems; Aqueous-two phase systems; Double emulsion droplet; Double emulsions; Emulsion droplets; Microcapsules; New approaches; PH-responsive; Smart hydrogels; Water-in-oil; aqueous solution; Article; body weight; confocal laser scanning microscopy; geometry; microcapsule; microfluidics; microscopy; microtechnology; molecular weight; pH; surface property; ultraviolet irradiation; ultraviolet visible spectroscopy; Microfluidics | English | 2022 | 2022-10-05 | 10.1016/j.colsurfa.2022.129506 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Temperature Accuracy Analysis by Land Cover According to the Angle of the Thermal Infrared Imaging Camera for Unmanned Aerial Vehicles | Land surface temperature (LST) is one of the crucial factors that is important in various fields, including the study of climate change and the urban heat island (UHI) phenomenon. The existing LST was acquired using satellite imagery, but with the development of unmanned aerial vehicles (UAV) and thermal infrared (TIR) cameras, it has become possible to acquire LST with a spatial resolution of cm. The accuracy evaluation of the existing TIR camera for UAV was conducted by shooting vertically. However, in the case of a TIR camera, the temperature value may change because the emissivity varies depending on the viewing angle. Therefore, it is necessary to evaluate the accuracy of the TIR camera according to each angle. In this study, images were simultaneously acquired at 2-min intervals for each of the three research sites by TIR camera angles (70 degrees, 80 degrees, 90 degrees). Then, the temperature difference by land cover was evaluated with respect to the LST obtained by laser thermometer and the LST obtained using UAV and TIR. As a result, the image taken at 80 degrees showed the smallest difference compared with the value obtained with a laser thermometer, and the 70 degrees image showed a large difference of 1-6 degrees C. In addition, in the case of the impervious surface, there was a large temperature difference by angle, and in the case of the water-permeable surface, there was no temperature difference by angle. Through this, 80 degrees is best when acquiring TIR data, and if it is impossible to take images at 80 degrees, it is considered good to acquire TIR images between 80 degrees and 90 degrees. To obtain more accurate LST, correction studies considering the external environment, camera attitude, and shooting height are needed in future studies. | Lee, Kirim; Lee, Won Hee | Kyungpook Natl Univ, Dept Spatial Informat, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea | 57193932338; 57190774365 | geolee@knu.ac.kr;wlee33@knu.ac.kr; | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION | ISPRS INT J GEO-INF | 2220-9964 | 11 | 3 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;GEOGRAPHY, PHYSICAL;REMOTE SENSING | 2022 | 3.4 | 35.7 | 0.96 | 2025-06-25 | 10 | 10 | UAV; TIR; vertical images; oblique images; land surface temperature; orthophoto | URBAN HEAT-ISLAND; SURFACE TEMPERATURE; DRONE | land surface temperature; oblique images; orthophoto; TIR; UAV; vertical images | English | 2022 | 2022-03 | 10.3390/ijgi11030204 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Computational simulation of cephalomedullary nailing in the osteoporotic Asian femur and clinical implications | Purpose: To assess the conformity of PFNA-II (R) and introduce clinical implications of new cephalomedullary nail (CMN) by analyzing three-dimensional (3D) modeling with virtual implantation at the actual size. Materials and methods: Thirty-four patients (average age; 79 years, range 68-94 years) who sustained the intertrochanteric fracture of the femur were enrolled in the present study. After importing into Mimics (R) software, the intact femurs on the opposite side were selected as cropping areas to reconstruct the 3D femur model with the medullary canal. PFNA-II (R) and new CMNs (lateral angle 0 degrees and 2 degrees, CCD angle 130 degrees; CMN0 degrees and CMN2 degrees) were processed at the actual size and ideally placed in the proximal femur using Mimics (R) software. The virtual entry point (EP), nail conformity, and anatomical relationships with the adjacent structures were assessed. Results: The virtual EP of PFNA-II (R) was placed along the cervico-trochanteric (CT) junction in the posterior half around trochanteric fossa and always medial to the tip of greater trochanter (GT). There were six abutments in PFNA-II (R) models, one impingement in CMN 0 degrees, and no impingement in CMN 2 degrees. All the models with cortical abutment showed increased anterior and lateral bowing of the proximal shaft owing to age-dependent changes. Compared with PFNA-II (R), with a decreasing tendency on the mediolateral angle of new CMNs, the virtual EP shifted to the medial and anterior side towards the CT junction. By simulating the intentional positioning in the media-to-lateral direction, the abutments in the PFNA-II (R) model could not be avoided. Furthermore, the lag screw of CMN 0 degrees was placed ideally at the center or inferior side of the femoral head < 10 mm in any direction without a cortical abutment. Conclusion: To avoid cortical abutment of CMN in the Asian geriatric femur, the virtual EP would be technically placed in the medial to the GT tip, and the implant design should be changed to decrease the mediolateral angle. (C) 2021 Elsevier Ltd. All rights reserved. | Chon, Chang-Soo; Kim, Joon-Woo; Sohn, Hoon-Sang; Jung, Gu-Hee | Jeil Med Corp, Inst Jeil Life Engn, 702 Kolon Sci Valley 2nd,55,Digital Ro 34 Gil, Seoul, South Korea; Kyungpook Natl Univ, Dept Orthopaed Surg, Sch Med, Kyungpook Natl Univ Hosp, 130 Dongduk Ro, Daegu 41944, South Korea; Wonju Severance Christian Hosp, Yonsei Univ, Dept Orthopaed Surg, Wonju Coll Med, Wonju, South Korea; Gyeongsang Natl Univ, Dept Orthopaed Surg, Coll Med, 11,Samjeongja Ro, Changwon Si 51472, Gyeongsangnam D, South Korea; Gyeongsang Natl Univ, Changwon Hosp, 11,Samjeongja Ro, Changwon Si 51472, Gyeongsangnam D, South Korea | 56533462500; 22951329000; 26642682800; 57202385117 | jyujin2001@hotmail.com; | INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED | INJURY | 0020-1383 | 1879-0267 | 53 | 3 | SCIE | CRITICAL CARE MEDICINE;EMERGENCY MEDICINE;ORTHOPEDICS;SURGERY | 2022 | 2.5 | 35.9 | 0.39 | 2025-06-25 | 2 | 2 | Proximal femur; Intertrochanteric fracture; Cephalomedullary nail; Three-dimensional modeling; Cortical abutment | PROXIMAL FEMUR; BONE QUALITY; GAMMA-NAIL; HIP SCREW | Cephalomedullary nail; Cortical abutment; Intertrochanteric fracture; Proximal femur; Three-dimensional modeling | Aged; Aged, 80 and over; Bone Nails; Computer Simulation; Femur; Fracture Fixation, Intramedullary; Hip Fractures; Humans; age; aged; Article; clinical article; computer simulation; controlled study; female; femur intertrochanteric fracture; greater trochanter; hip radiography; human; male; osteoporosis; surgical technique; three-dimensional imaging; bone nail; diagnostic imaging; femur; hip fracture; intramedullary nailing; procedures; very elderly | English | 2022 | 2022-03 | 10.1016/j.injury.2021.11.035 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Contact process with quenched impurity in four dimensions | We study by Monte Carlo simulation the absorbing phase transition of the contact process (CP) on a four-dimensional hypercubic lattice with quenched impurity. The critical behavior of CP with quenched impurity has been predicted by an application of the Harris criterion established in equilibrium spin system to nonequilibrium absorbing phase transition and a mapping of disordered CP onto random quantum magnets. Harris criterion suggested that the pure fixed point is unstable if dv(perpendicular to)< 2, implying that any amount of impurity added to the system changes the critical behavior, where d and v(perpendicular to) are, respectively, the substrate dimensionality and correlation-length exponent of a pure system. On the other hand, in the random transverse-field magnets the critical behavior is controlled by the infinite randomness fixed point in any dimensions, suggesting that CP with randomness follows the same scenario in any dimensions. For d < 4, both expectations are valid, and the critical behavior of disordered CP is known to exhibit activated scaling. However, in four dimensions, dv(perpendicular to) = 2, and the stability of pure fixed point suggests that the disorder is irrelevant according to the Harris criterion. Our simulation results in four dimensions showed that the CP with quenched impurity exhibited the same critical behavior as the clean CP as long as the density of impurity sites x < x(c), where x(c) is the critical density above which pure lattice sites cannot form an infinite cluster. At x(c), the unusual nonuniversal power-law behavior was observed in the subcritical region and the activated scaling was found at the critical point. (C) 2021 Elsevier B.V. All rights reserved. | Kim, Jin Min; Lee, Sang Bub | Soongsil Univ, Dept Phys, Seoul 156743, South Korea; Kyungpook Natl Univ, Daegu, South Korea | jmkim@ssu.ac.kr;sblee@knu.ac.kr; | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | PHYSICA A | 0378-4371 | 1873-2119 | 586 | SCIE | PHYSICS, MULTIDISCIPLINARY | 2022 | 3.3 | 35.9 | 2 | Contact process; Absorbing phase transition; Monte Carlo; Quenched impurity; Activated scaling | PHASE-TRANSITIONS; CELLULAR-AUTOMATA; UNIVERSALITY; DIFFUSION; BEHAVIOR | English | 2022 | 2022-01-15 | 10.1016/j.physa.2021.126464 | 바로가기 | 바로가기 | 바로가기 |
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