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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 | An efficient continuous quorum quenching feed to mitigate membrane biofouling in membrane bioreactors: Strain 1A1 (extracellular) versus strain BH4 (intracellular) | Biofouling of the membrane surface of the filtration module remains a major challenge. Various types of quorum quenching (QQ) media have been studied to mitigate membrane biofouling in membrane bioreactors (MBRs). However, a physical fouling issue occurred due to trapping of QQ media in the hollow-fiber module, and this was considered to be one of the reasons for the difficulty in applying QQ-MBRs worldwide. In this study, we continuously supplied the QQ effect without directly injecting a fluidized QQ medium into the membrane tank of the MBRs. The traits of the QQ strain play crucial roles in continuous QQ feeding systems. Comparison of Pseudomonas sp. 1A1 (exo, extracellular) and Rhodococcus sp. BH4 (endo, intracellular) revealed that the exo-type of strain 1A1 is suitable for continuous QQ feeding. The increase in transmembrane pressure (TMP) in the Ex-QQ MBR was mitigated by about 1.7 times compared to that in the Ex-Vacant MBR, and at the same TMP and operating time, the EPS concentration in the Ex-QQ MBR was successfully reduced by 50.1 % and 13.8 %, respectively. PICRUSt was used to predict the functional genes related to biofilm formation and transporter gene-related EPS between Ex-Vacant and Ex-QQ MBR, and the results revealed that the Ex-Vacant MBR had notably greater relative abundance of genes related to biofilm formation and EPS production than those of the Ex-QQ MBR. Thus, QQ via strain 1A1 in the Ex-QQ MBR could reduce membrane biofouling by lowering biofilm for-mation and EPS production genes in microbial communities. | Kim, In; Jang, Jun-U; Park, Hyeyeon; Park, Jeongmi; Oh, Hyun-Suk; Lee, Seonki; Choo, Kwang-Ho; Park, Pyung-Kyu; Lee, Kibaek | Chonnam Natl Univ, Dept Biotechnol & Bioengn, Gwangju 61186, South Korea; Seoul Natl Univ Sci & Technol, Dept Environm Engn, Seoul 01811, South Korea; Korea Maritime & Ocean Univ, Dept Environm Engn, Pusan 49112, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Adv Inst Water Ind, Daegu 41566, South Korea; Yonsei Univ, Dept Environm & Energy Engn, Wonju 26439, South Korea | Choo, Kwang-Ho/A-3456-2016; Oh, Hyun-Suk/G-4843-2017 | 58116053100; 58116081700; 58116081800; 58116037400; 8212183100; 57118767300; 7102083272; 7202425104; 55845961700 | kibaek@jnu.ac.kr; | JOURNAL OF WATER PROCESS ENGINEERING | J WATER PROCESS ENG | 2214-7144 | 52 | SCIE | ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL;WATER RESOURCES | 2023 | 6.3 | 5.1 | 0.81 | 2025-06-25 | 7 | 7 | Quorum quenching; Extracellular; Biofouling; Membrane bioreactor; Continuous QQ feeding | BACTERIA; STRATEGY; MBR; MECHANISM; BIOFILM | Biofouling; Continuous QQ feeding; Extracellular; Membrane bioreactor; Quorum quenching; Strain 1A1 | English | 2023 | 2023-04 | 10.1016/j.jwpe.2023.103594 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Design and application of chitosan-CuO nanocomposites synthesized via novel hybrid ionic gelation-ultrasonication methods for water disinfection br | Chitosan-copper oxide nanoparticles (NPCS-CuO) are widely used in various applications such as antimicrobial, catalysis, drug delivery, and nanotheranostics. In this study, the structures and antibacterial properties of chitosan-CuO nanocomposites is systematically investigated. NPCS-CuO was synthesized via hybrid ionic gelation-ultrasonication methods by means of solution mixing of copper oxide (NPCuO) and chitosan nano-particles (NPCS) with citrate ion as a crosslinker. The synthesized NPCS-CuO were characterized by particle size analyzer (PSA), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and antibacterial ac-tivity tests. The synthesized NPCS-CuO has the smallest particle size of 195.3 nm with a polydispersity index (PDI) of 0.972 at the mass ratio of 30:0.005 correspond to NPCS and NPCuO, respectively. The interaction be-tween CS and crosslinker predominantly occurred via hydrogen bonding of -NH and C--O moieties, while interaction of NPCS and NPCuO took place via chelation between C--O and CuO functional groups, as confirmed by FTIR spectra. The X-ray diffraction patterns revealed that the addition of NPCuO remarkably increased the crystallinity and in contrast reduced the crystallite size of NPCS. The NPCS-CuO exhibited superior antibacterial efficacy toward E. coli, S. aureus, and P. aeruginosa bacteria strains than that of NPCS where the maximum zone of inhibition and bacteria killing ratio reached up to 16 mm and 100 %, respectively. However, it showed the inferiority toward B. subtilis and S. typhi bacteria strains. These behaviors strongly controlled by the nature of each bacterial strain. Further studies in advanced characterizations and applications of NPCS-CuO as antibac-terial agent is under investigation. | Khoerunnisa, Fitri; Nurhayati, Mita; Herlini, Humaira; Adzkia, Qurratu Aini Alya; Dara, Fitri; Hendrawan, Hendrawan; Oh, Wen-Da; Lim, JitKang | Indonesia Univ Educ, Dept Chem, Bandung 40154, Indonesia; Kyungpook Natl Univ, Dept Adv Sci & Technol Convergence, 2559 Gyeongsang, Sangju 37224, South Korea; Res Ctr Environm & Clean Technol, Natl Res & Innovat Agcy, Jl Cisitu Sangkuriang, Bandung 40135, Indonesia; Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia; Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal, George Town 14300, Malaysia | Alya Adzkia, Qurratu Aini/JFK-0771-2023; Oh, Wen-Da/X-5294-2019; Hendrawan, Hendrawan/GOJ-8304-2022; Khoerunnisa, Fitri/GOJ-8479-2022; Lim, Jit/G-3771-2010; Nurhayati, Mita/GOJ-8523-2022 | 36675148400; 57222139830; 57202361437; 58156145900; 57194336221; 6506917385; 57205433398; 56583116600 | fitri@upi.edu;ohwenda@usm.my;chjitkangl@eng.usm.my; | JOURNAL OF WATER PROCESS ENGINEERING | J WATER PROCESS ENG | 2214-7144 | 52 | SCIE | ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL;WATER RESOURCES | 2023 | 6.3 | 5.1 | 1.39 | 2025-06-25 | 10 | 13 | Hybrid methods; NPCS-CuO; Antibacterial activity; Chitosan; Morphology | COPPER-OXIDE NANOPARTICLES; CROSS-LINKING; ANTIBACTERIAL; DELIVERY; AGENTS; WASTE; MICRO; METAL; MODE | Antibacterial activity; Chitosan; Hybrid methods; Morphology; NPCS-CuO | English | 2023 | 2023-04 | 10.1016/j.jwpe.2023.103556 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Evaluating the potential of wax impregnated reactive components for long-term acenaphthene removal | The catalytic oxidation of acenaphthene (ANA) was investigated using a controlled-release persulfate candle (PSC) and Fe(II) candle (Fe(II)C) to provide long-lasting oxidation conditions during groundwater remediation. To the best of our knowledge, this study is the first attempt to compare the pseudo-first-order rate constant (k(obs)) and % removal of ANA oxidation using PSC/Fe(II)C, PS solution (PSaq)/Fe(II) solution (Fe(II)(aq)), PSC/Fe(II)(aq), and PSaq/Fe(II)C systems. The k(obs) and % removal of ANA in the PSC/Fe(II)C system exceeded those in the other systems. The optimal degradation conditions used were 0.1 mM ANA; 3.08 mM equilibrium concentration of PS (C-e,C-PS) released from PSC (controlled-release rate constant, k(cr) = 7.731 day(-1)); 5.673 mM equilibrium concentration of Fe(II) (C-e,C-Fe(II)) released from Fe(II)C (k(cr) = 3.796 day(-1)); unadjusted pH (similar to 7.0); and 25 degrees C. Radical scavenger studies and electron spin resonance (ESR) spectra showed that sulfate (SO4 center dot-) and hydroxyl ((OH)-O-center dot) radicals were involved in the ANA oxidation, but (OH)-O-center dot was the dominant radical species in the PSC/Fe(II)C system. Cl-, SO42-, and HCO3- acted as radical scavengers. The introduction of hydroxylamine (HA) into the PSC/Fe(II)C system resulted in a notable enhancement of ANA removal efficiency, increasing it from 51.8 % to 82.6 % within 10 min. Additionally, the PSC/Fe(II)C + HA system exhibited a higher Fe(II) consumption efficiency of 96.6 %, surpassing that of the PSC/Fe(II)(aq) + HA system, which registered an efficiency of 88.6 %. Intermediate byproducts after 24 h of reaction were detected as non-toxic byproducts by liquid chromatography-mass spectrometry (LC-MS). The PSC/Fe(II)C system would be beneficial for the remediation of polycyclic aromatic hydrocarbons in groundwater due to the continuous supply of Fe(II) and PS for a long time. | Septian, Ardie; Masud, Md Abdullah Al; Nugroho, Rudi; Shin, Won Sik | Res Ctr Environm & Clean Technol, Natl Res & Innovat Agcy, BRIN, Badan Riset Inovasi Nas, Serpong 15314, Indonesia; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea | Septian, Ardie/HGB-8696-2022; Masud, Md Abdul/ABA-8674-2021 | 57201503612; 57542255300; 57210417829; 23019870800 | masuderel@knu.ac.kr;wshin@knu.ac.kr; | JOURNAL OF WATER PROCESS ENGINEERING | J WATER PROCESS ENG | 2214-7144 | 56 | SCIE | ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL;WATER RESOURCES | 2023 | 6.3 | 5.1 | 0.58 | 2025-06-25 | 5 | 5 | Acenaphthene; Controlled-release; Fe(II) candle; Hydroxylamine; PS candle; Oxidation | POLYCYCLIC AROMATIC-HYDROCARBONS; ACTIVATED-PERSULFATE; ORGANIC POLLUTANTS; SULFATE RADICALS; RATE CONSTANTS; COAL-TAR; DEGRADATION; OXIDATION; GROUNDWATER; HYDROXYL | Acenaphthene; Controlled-release; Fe(II) candle; Hydroxylamine; Oxidation; PS candle | English | 2023 | 2023-12 | 10.1016/j.jwpe.2023.104466 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Synthesis of gelatin aerogel-containing Al-metal organic framework for the removal of phenolic contaminants from aqueous solutions | Considerable amounts phenols and derivatives are found in water bodies in our surrounding environment. However, phenolic waste is extremely difficult to decompose naturally and is highly toxic even at very low concentrations. The unique properties of aerogels allow them to act as potential candidate in different fields, but their applications in adsorption field remain limited. The impressive results of novel aerogels could open new avenues for water remediation and development of new functional aerogel materials. In this study, an aluminum based metal-organic framework incorporating gelatin (GMA-1.0) aerogel hybrid composite was prepared to remove phenolic compounds, namely phenol, 4-chlorophenol (CP), 2,4-dichlorophenol (DCP), and 2,4,6-trichlorophenol (TCP) from aqueous environments. The as-prepared GMA-1.0 aerogel composite could uptake TCP to the greatest extent (16.56 mg/g) compared to the other forms of phenolic derivatives. Moreover, the prepared GMA1.0 demonstrated high selectivity and excellent adsorption-desorption performance over four repetitions without loss of adsorption capacity. Special attraction forces involved in adsorption chemistry, i.e., hydrogen bonding, 7C-7C bond interactions, and donor-acceptor complexation, are involved to remove the phenolic compounds from water. Continuous column studies revealed that the Thomas, Adams-Bohart, and Yoon-Nelson models performed well with respect to eliminating phenolic derivatives for the prepared GMA-1.0 aerogels. Based on these findings, it can be concluded that the as-synthesized GMA-1.0 aerogel composite has excellent potential for serving as a novel and effective adsorbent material for practical application in phenolic waste remediation in aqueous environments. | Kim, Taeyeon; Yun, Keunyoung; Kim, Nahyun; Cha, Byungjun; Han, Jonghun; Njaramba, Lewis Kamande; Elanchezhiyan, S. SD.; Park, Chang Min | Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Korea Army Acad Yeong Cheon, Dept Civil & Environm Engn, 495 Hogook Ro, Yeong Cheon 38900, Gyeongbuk, South Korea; Sethu Inst Technol, Dept Chem, Kariapatti, Tamil Nadu, India | Kim, Tae Hyun/GNP-3195-2022; Park, Chang Min/CAA-8506-2022; Kamande, Lewis/JLL-5435-2023; Chung, ChiHye/LJK-1311-2024 | 58031481400; 57884548300; 57336446400; 57337280900; 59803784200; 57223183206; 54894383700; 57209588953 | kty@ecorbit.com;chezhiyandasarathan@gmail.com;cmpark@knu.ac.kr; | JOURNAL OF WATER PROCESS ENGINEERING | J WATER PROCESS ENG | 2214-7144 | 51 | SCIE | ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL;WATER RESOURCES | 2023 | 6.3 | 5.1 | 1.16 | 2025-06-25 | 9 | 10 | Adsorption; Aluminum; Gelatin; MOF; Phenolic compounds | ADSORPTION BEHAVIOR; NANO-HYDROXYAPATITE; WASTE-WATER; ACID; SORPTION; ADSORBENTS; NANOHYBRID; COMPOSITE; MECHANISM; ALUMINUM | Adsorption; Aluminum; Gelatin; MOF; Phenolic compounds | English | 2023 | 2023-02 | 10.1016/j.jwpe.2022.103441 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | An effective ensemble framework for Many-Objective optimization based on AdaBoost and K-means clustering | During multiobjective evolutionary algorithm (MOEA) evolution, the mating and environmental selection op-erators are crucial in selecting promising individuals and enriching the MOEA's performance. However, MOEAs must combat obstacles while addressing many-objective optimization problems (MaOPs). To enhance MOEA performance on MaOPs, various strategies were proposed for mating and environmental selection operators. These strategies were associated with distinct benefits and drawbacks. Therefore, we present an ensemble approach combining mating and environmental selection operators of different MOEAs using an AdaBoost-inspired competitive framework and a K-means clustering-based multistage cooperative framework. In the competitive framework, mating operators compete for resources and preferences assigned to each operator using the AdaBoost strategy. A multistage evolution process is employed, where environmental selection operators collaborate effectively. The K-means clustering algorithm is adopted to select elite individuals for subsequent iterations. K-means clustering requires prior information regarding the number of clusters and is effectively addressed. The proposed ensemble framework's performance is evaluated on 22 benchmark problems with objectives ranging from 5 to 20, comparing it with seven state-of-the-art algorithms. In addition, the MSEMOEA approach is applied to solve three real-world many-objective applications to demonstrate its efficiency. The experimental results demonstrate that the proposed approach achieves better performance than state-of-the-art schemes for convergence and diversity. | Palakonda, Vikas; Kang, Jae-Mo; Jung, Heechul | Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu, South Korea | ; Jung, Heechul/HTL-7199-2023 | 57193028485; 56024930400; 55652175200 | vikas.11475@gmail.com;jmkang@knu.ac.kr;heechul@knu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 227 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2023 | 7.5 | 5.2 | 1.52 | 2025-06-25 | 12 | 14 | Ensemble; AdaBoost; K-means clustering; Multiobjective optimization; Many-objective optimization | MULTIOBJECTIVE GENETIC ALGORITHM; EVOLUTIONARY ALGORITHM; EXTERNAL ARCHIVE; DECOMPOSITION; MULTI; CONVERGENCE; DIVERSITY; SELECTION | AdaBoost; Ensemble; K-means clustering; Many-objective optimization; Multiobjective optimization | Adaptive boosting; Benchmarking; Evolutionary algorithms; K-means clustering; Ensemble; K-means++ clustering; Many-objective optimizations; Matings; Multi-Objective Evolutionary Algorithm; Multi-objectives optimization; Multiobjective evolutionary algorithms; Optimization problems; Performance; Selection operators; Multiobjective optimization | English | 2023 | 2023-10-01 | 10.1016/j.eswa.2023.120278 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Detecting unregistered users through semi-supervised anomaly detection with similarity datasets | Recent research has focused on exploring systems that incorporate anomaly detection models to automate the addition of users in user recognition systems. Anomaly detection, a method used to distinguish between new and existing users by identifying abnormal images, has gained significant attention. Researchers have been actively investigating the Semi-Supervised Learning method, which utilizes only existing user data to differentiate between existing and new users. However, existing semi-supervised learning based anomaly detection models exhibit high performance on datasets with low similarity but experience a sharp decline in performance on datasets with high similarity. Furthermore, their large model size makes it challenging to execute them on edge nodes. To address these limitations, this paper proposes a model that can be executed on edge nodes and guarantees good performance on both low and high similarity datasets. The proposed model utilizes the LeNet-5, a user recognition model with fewer weights and multiple images as input, for classifying new users. This study compared the existing anomaly detection models with the proposed model using three datasets with varying similarities. The performance evaluation involved comparing the accuracy, ROC curve, and AUC of each model on a training server. Subsequently, the top three models were optimized for execution on the edge node (STM32F207ZG MCU) and further evaluated by comparing their accuracy, inference speed, and model size. The results revealed that the proposed model achieved an approximate 53% improvement in accuracy compared to the existing anomaly detection models. Furthermore, when executed on the edge node, the proposed model demonstrated significant memory savings, with a maximum reduction of approximately 530% and approximately 40% reduction in flash memory usage compared to the existing models. | Heo, Dong Hyuk; Park, Sung Ho; Kang, Soon Ju | Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea; Kyungpook Natl Univ, Ctr Selforganizing Software, Daegu, South Korea | park, sungho/ABA-4566-2020 | 58313533000; 37049190600; 55666313900 | sjkang@knu.ac.kr; | JOURNAL OF BIG DATA | J BIG DATA-GER | 2196-1115 | 10 | 1 | SCIE | COMPUTER SCIENCE, THEORY & METHODS | 2023 | 8.6 | 5.2 | 0.23 | 2025-06-25 | 1 | 2 | Unregistered users; Similarity datasets; Semi-supervised anomaly detection; Edge computing; Artificial Intelligence on edge node | Artificial Intelligence on edge node; Edge computing; Semi-supervised anomaly detection; Similarity datasets; Unregistered users | Edge computing; Flash memory; Learning systems; Anomaly detection; Anomaly detection models; Artificial intelligence on edge node; Edge computing; Edge nodes; Performance; Semi-supervised; Semi-supervised anomaly detection; Similarity dataset; Unregistered user; Anomaly detection | English | 2023 | 2023-06-12 | 10.1186/s40537-023-00791-8 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Investigating the energy use in an Australian building: A case study of a west-facing apartment in Sydney | This study presents the simulation of retrofitting measures in a residential apartment located in Sydney based on energy consumption, building characteristics, and climatic conditions through energy audits. From the results, an upgrade to a casement aluminum framed double glazing window with a thermal conductance (U-Value) of 2.3 W/m2/oC, having an initial cost of $6,570, will save 41.2 % and 21 % of the energy used for heating and cooling equipment with a simple payback of 6.3 years and fuel cost savings of $1,046. In addition, 787kWh of electricity saved from white goods by investing $1,050 has a payback of 2.2 years and fuel cost savings of $472. Finally, the building will save 2.7 tons of GHG emissions, equivalent to three people reducing energy use by 20 % in Australia. The research is vital because retrofitting multi-residential buildings in Australia has not been fully explored, leaving 7.8 million existing buildings that are not energy efficient. | Owolabi, Abdulhameed Babatunde; Suh, Dongjun; Pignatta, Gloria | Kyungpook Natl Univ, Reg Leading Res Ctr Smart Energy Syst, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea; Univ New South Wales UNSW Sydney, Fac Arts Design & Architecture, Sch Built Environm, Sydney, NSW 2052, Australia | ; Pignatta, Gloria/I-2506-2019 | 57192210107; 36613529600; 56331396900 | owolabiabdulhameed@gmail.com;dongjunsuh@knu.ac.kr;g.pignatta@unsw.edu.au; | AIN SHAMS ENGINEERING JOURNAL | AIN SHAMS ENG J | 2090-4479 | 2090-4495 | 14 | 8 | SCIE | ENGINEERING, MULTIDISCIPLINARY | 2023 | 6 | 5.2 | 0.44 | 2025-06-25 | 1 | 3 | Energy savings; Emission reduction; Thermal conductance; Building energy performance; RETScreen Expert | RESIDENTIAL BUILDINGS; EFFICIENCY; PERFORMANCE; SIMULATION; EMISSIONS; RETROFIT | Building energy performance; Emission reduction; Energy savings; RETScreen Expert; Thermal conductance | Apartment houses; Emission control; Energy efficiency; Energy utilization; Greenhouse gases; Thermal conductivity; Building energy performance; Cost saving; Emission reduction; Energy savings; Energy use; Energy-savings; Fuel cost; RETScreen; Retscreen expert; Thermal conductance; Retrofitting | English | 2023 | 2023-08 | 10.1016/j.asej.2022.102040 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Investigation of a centrifugal pump for energy loss due to clearance thickness while pumping different viscosity oils | The clearance between the stationary volute and rotating impeller of a centrifugal pump is crucial; however, it affects the internal flow and deteriorates the pump performance. This study performed a flow investigation through a numerical simulation to understand the effect of clearance and pumping fluid viscosity under the design and off-design conditions of a centrifugal pump. Numerical simulations were conducted by solving unsteady Reynolds-averaged Navier-Stokes (URANS) equations and validated using experimental results. Five three-dimensional centrifugal pump flow domains were created, by varying the clearance thickness, and simulated with three different fluid properties. Consequently, the numerical simulation results aided in understanding the internal flow pattern and estimating energy loss due to disk friction and leakage through the clearance. It was found that the disk friction and leakage losses, which cause secondary losses in the pump, were highly affected by the fluid properties and clearance thickness. The clearance thickness drastically affected both the volumetric and hydraulic efficiencies to leakage; however, beyond a particular value, it became less significant. Furthermore, the viscous oils caused a high disk friction loss; however, the leakage loss was less affected by the clearance thickness. | Kim, Bubryur; Hamid, Mohammed; Bellary, S. A. I.; Aljehani, Abdulrahman S.; Choi, Se-Woon; Lee, Dong-Eun | Kyungpook Natl Univ, Dept Robot & Smart Syst Engn, Daegu, South Korea; Indian Inst Technol, Indian Sch Mines, Dept Petr Engn, Dhanbad, India; Arvind Gavali Coll Engn, Dept Mech Engn, Satara, Maharahtra, India; King Abdulaziz Univ, Fac Earth Sci, Jeddah, Saudi Arabia; Daegu Catholic Univ, Dept Architectural Engn, Gyeongasan si, Gyeongasan-si, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu, South Korea | Bellary, Dr. Sayed Ahmed Imran/A-1027-2016; Bellary, Sayed/A-1027-2016; Aljehani, Abdulrahman/GXG-1418-2022; HAMID, MOHAMMED/KLD-4983-2024 | 57198355299; 59283384100; 56078600300; 56165240600; 39360956300; 56605563300 | mhsiddique@iitism.ac.in;dolee@knu.ac.kr; | RESULTS IN ENGINEERING | RESULTS ENG | 2590-1230 | 18 | ESCI | ENGINEERING, MULTIDISCIPLINARY | 2023 | 6 | 5.2 | 1.9 | 2025-06-25 | 12 | 13 | Hydraulic efficiency; Volumetric efficiency; Energy losses; Radial clearance; Flow leakage | ROTORDYNAMIC FORCES; IMPELLER; FLOW; PERFORMANCE | Energy losses; Flow leakage; Hydraulic efficiency; Radial clearance; Volumetric efficiency | Centrifugal pumps; Flow patterns; Friction; Navier Stokes equations; Numerical models; Viscosity; Flow leakage; Fluid property; Friction loss; Hydraulic efficiency; Internal flows; Leakage loss; Pump performance; Radial clearance; Rotating impellers; Volumetric efficiency; Energy dissipation | English | 2023 | 2023-06 | 10.1016/j.rineng.2023.101038 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Investigation of the hydrothermal phenomena in a wavy microchannel with secondary flow passages through mid-wall inflection points | Advancement in manufacturing processes has fuelled research in microchannel heat sinks to meet the demands of modern microelectronics. The heat sink design in the present study considers longitudinally wavy microchannels incorporating secondary flow passages. The secondary flow has been investigated for abrupt flow bifurcation (at 60 degrees angle) and smooth flow bifurcation (at 30 degrees angle). Further, these geometries were tested with different inlet-outlet configurations. The main objective of the paper is to study how a secondary flow would affect the flow profile and thermal performance of a wavy microchannel heat sink. The flow profile, pressure drop, tem-perature profiles, and average Nusselt number for a wide range of flow rates have been obtained and compared with those for the conventional design, and associated trends have been explored. Furthermore, the overall performance of the heat sink designs has been quantified by plotting the thermal enhancement factor (TEF) against a wide range of Reynolds numbers. The heat sink with flow bifurcation of 30 degrees attains the highest value of Nuselt number below the flow rate of 1.8 x 10-6 m3/s, whereas above this flow rate, the Nusselt number value of the conventional wavy heat sink dominates the proposed heat sink designs. The study corresponds to the de-mands of modern microchips such as the 13th Gen Intel (R) CoreTM processor and serves as a guideline for manufacturing heat sinks with wavy microchannels incorporating secondary flow passages. | Memon, Safi Ahmed; Akhtar, Shehnaz; Cheema, Taqi Ahmad; Park, Cheol Woo | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea; Ghulam Ishaq Khan Inst Engn Sci & Technol, Fac Mech Engn, Topi 23460, Pakistan | ; Akhtar, Shehnaz/IST-0523-2023 | 58757911600; 57202696797; 36522492600; 7408416474 | tacheema@giki.edu.pk;chwoopark@knu.ac.kr; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 1873-5606 | 223 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2023 | 6.1 | 5.2 | 2.04 | 2025-06-25 | 14 | 17 | Wavy microchannels; Secondary flow; Flow disruption; Thermal performance; Temperature uniformity | HEAT-TRANSFER; FLUID-FLOW; MICRO-CHANNELS; LAMINAR-FLOW; PERFORMANCE; SINK; ENHANCEMENT | Flow disruption; Secondary flow; Temperature uniformity; Thermal performance; Wavy microchannels | Bifurcation (mathematics); Heat sinks; Industrial research; Microelectronics; Nusselt number; Reynolds number; Secondary flow; Flow bifurcations; Flow disruption; Flow passage; Flow profile; Heat sink design; Inflexion point; Micro channel heat sinks; Temperature uniformity; Thermal Performance; Wavy microchannel; Microchannels | English | 2023 | 2023-03-25 | 10.1016/j.applthermaleng.2023.120010 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Mel Spectrogram-based advanced deep temporal clustering model with unsupervised data for fault diagnosis | Fault diagnosis of mechanical equipment using data-driven machine learning methods has been developed recently as a promising technique for improving the reliability of industrial systems. However, these methods suffer from data sparsity due to the difficulty in data collection, which limits the feature extraction of anomalies. To solve this problem, we propose the mel spectrogram-based advanced deep temporal clustering (ADTC) model, which can extract and verify the features of unlabeled data through an unsupervised learning based autoencoder and the K-means. In addition, the ADTC model uses the proposed centroid based learning to obtain calibrated unsupervised learning data by minimizing the data point and target centroid distances for misclustered encoder output features in ensemble-based unsupervised learning. The classifier of the ADTC model uses a supervised learning based deep support vector machine network model, which is robust to nonlinear data, to diagnose the faults of the mechanical equipment. The proposed ADTC model was validated using mechanical equipment dataset with data augmentation to address the imbalanced dataset problem. During experiments, the mel spectrogram-based ADTC model exhibited the best performance in the various industrial environment with a prediction accuracy as high as 98.06%, outperforming other compared algorithms. | Hong, Geonkyo; Suh, Dongjun | Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea | 58069296200; 36613529600 | gun2399@knu.ac.kr;dongjunsuh@knu.ac.kr; | EXPERT SYSTEMS WITH APPLICATIONS | EXPERT SYST APPL | 0957-4174 | 1873-6793 | 217 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2023 | 7.5 | 5.2 | 3.28 | 2025-06-25 | 21 | 29 | Anomaly detection; Data augmentation; Fault diagnosis; Mel spectrogram; Time series; Unsupervised learning | DOMAIN ADAPTATION | Anomaly detection; Data augmentation; Fault diagnosis; Mel spectrogram; Time series; Unsupervised learning | Anomaly detection; Data mining; Deep learning; Failure analysis; Fault detection; K-means clustering; Learning systems; Spectrographs; Support vector machines; Anomaly detection; Clustering model; Data augmentation; Faults diagnosis; Mechanical equipment; Mel spectrogram; Model use; Spectrograms; Temporal clustering; Times series; Unsupervised learning | English | 2023 | 2023-05-01 | 10.1016/j.eswa.2023.119551 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Metformin Use and Long-term Clinical Outcomes in Kidney Transplant Recipients | Rationale & Objective: Metformin has been recommended for some patients with advanced chronic kidney disease. However, the value of metformin in kidney transplant recipients (KTRs) with pretransplant diabetes mellitus (DM) or posttransplant DM is uncertain. We investigated the clinical effects of metformin in KTRs. Study Design: Retrospective cohort study. Setting & Participants: A total of 1,995 KTRs with diabetes from 6 tertiary referral centers in the Republic of Korea. Exposure: Metformin usage was defined as the use of metformin for >90 days after kidney transplantation; 1,193 KTRs were metformin users, and 802 KTRs did not use metformin. Changing usage of metformin among those exposed for >90 days was also characterized. Outcome: Primary outcomes were all-cause mortality and death-censored graft failure (DCGF). Secondary outcomes were biopsy-proven acute rejection (BPAR) and lactic acidosis events. Analytical Approach: Survival analyses were conducted using multivariable Cox regression and competing risk analyses using Fine and Gray models. Changes in metformin use over time were modeled using a time-varying covariate. Metformin usage, mean daily dose, and hemoglobin A1c (HbA1c) changes were considered in the landmark analysis to address time-varying confounding. Results: Metformin use was associated with a lower risk of DCGF (adjusted hazard ratio [AHR], 0.47 [95% CI, 0.23-0.96], P = 0.038); there was no significant association with all-cause mortality (AHR, 0.94 [95% CI, 0.32-2.76], P = 0.915) or BPAR (AHR 0.98 [95% CI, 0.62-1.54], P = 0.942). In the subgroup analysis, metformin usage was associated with a reduced risk of all-cause mortality and a lower risk of DCGF for both pretransplantation DM and posttransplant DM groups. Metformin usage was associated with a lower risk of BPAR in the posttransplant DM group, although it was less effective in the pretransplantation DM group. There was no confirmed case of metformin-associated lactic acidosis (MALA) in the present cohort. A higher dose of metformin was correlated with lower risks of DCGF and BPAR. Limitations: Data on newer antidiabetic drugs such as SGLT2 inhibitors are limited, and there is potential limited generalizability to other populations. Conclusions: Metformin usage may benefit KTRs, as evidenced by its association with a reduced risk of DCGF and the absence of MALA events. Randomized controlled trials are needed to validate these observational findings. © 2023 | Kwon, Soie; Kim, Yong Chul; Kwon, Hyunwook; Cho, Jang-Hee; Kim, Chan-Duck; Son, Hyung-Eun; Jeong, Jong-Cheol; Jung, In Mok; Yoo, Kyung Don; Kim, Yeonjin; Lee, Woojoo; Lee, Jong Soo; Lee, Hajeong; Lim, Chun Soo; Kim, Yon Su; Kim, Young Hoon; Lee, Jung Pyo | Department of Internal Medicine, Heukseok Hospital, Chung-Ang University, Seoul, South Korea, Department of Clinical Medical Sciences, College of Medicine, Austria; Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea; Division of Kidney and Pancreas Transplantation, Department of Surgery, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea; Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Internal Medicine, Gwangmyeong Hospital, Chung-Ang University, Gyeonggi-do, South Korea, Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul, South Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, South Korea; Department of Surgery, Boramae Medical Center, Seoul, South Korea; Division of Nephrology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea; Department of Public Health Sciences, Graduate School of Public Health, South Korea; Department of Public Health Sciences, Graduate School of Public Health, South Korea; Division of Nephrology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea; Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Internal Medicine, Boramae Medical Center, Seoul, South Korea, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea; Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea; Division of Kidney and Pancreas Transplantation, Department of Surgery, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea; Department of Internal Medicine, Boramae Medical Center, Seoul, South Korea, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea | 57206477140; 57026583000; 56306126900; 7403536291; 8558530700; 57208427093; 37761626800; 7102965133; 56603636300; 57816137000; 58202037500; 57201264463; 36554389800; 15019536200; 7410205767; 57281310600; 56028990400 | jungpyolee@snu.ac.kr;gskyh@amc.seoul.kr; | American Journal of Kidney Diseases | AM J KIDNEY DIS | 0272-6386 | 1523-6838 | 82 | 3 | SCIE | UROLOGY & NEPHROLOGY | 2023 | 9.4 | 5.2 | 2.26 | 2025-06-25 | 10 | Kidney transplantation; metformin; posttransplantation diabetes mellitus; pretransplantation diabetes mellitus | Acidosis, Lactic; Diabetes Mellitus; Humans; Kidney Transplantation; Metformin; Retrospective Studies; Risk Factors; Transplant Recipients; hemoglobin A1c; metformin; adult; all cause mortality; Article; chronic kidney failure; clinical outcome; cohort analysis; confidence interval; controlled study; death; diabetes mellitus; female; follow up; graft failure; graft recipient; graft survival; hazard ratio; human; kidney graft rejection; kidney transplantation; low risk patient; major clinical study; male; proportional hazards model; retrospective study; risk assessment; diabetes mellitus; graft recipient; lactic acidosis; risk factor | English | Final | 2023 | 10.1053/j.ajkd.2023.01.446 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Microstructure, mechanical properties, and wear properties of friction-stir processed S45C steel | The present study aims to investigate the microstructure, mechanical properties, and wear resistance of S45C steel after friction-stir welding (FSW) by using a sliding wear test, a 3D laser scanning microscope, and an electron backscattered diffractometer. The base metal showed long ploughing and cutting, indicating adhesive/ abrasive wear. After FSW, the thermo-mechanical affected zone presented better wear resistance, displaying only abrasions due to accumulated dislocations and grain refinement mainly due to continuous dynamic recrystallization. The stir zone showed the highest wear resistance, with short ploughing and cutting due to its higher strain hardening capability. | Park, Jong-Wook; Jung, Hee-Young; Jeong, Wonki; Shin, Se-Eun; Fujii, Hidetoshi; Kim, Hyun-Joon; Lee, Seung-Joon | Tech Univ Korea, Dept Adv Mat Engn, Shihung 15073, South Korea; Kyungpook Natl Univ, Dept Precis Mech Engn, Sangju, South Korea; Sunchon Natl Univ, Dept Mat Sci & Met Engn, Sunchon 57922, South Korea; Osaka Univ, Joining & Welding Res Inst, 11-1 Mihogaoka, Osaka, Ibaraki 5670047, Japan | Park, Jung Hwan/AAA-1951-2022 | 57416754400; 58297162500; 57216656856; 55789218600; 7403071460; 56766313200; 55293311500 | leesj@tukorea.ac.kr; | TRIBOLOGY INTERNATIONAL | TRIBOL INT | 0301-679X | 1879-2464 | 186 | SCIE | ENGINEERING, MECHANICAL | 2023 | 6.1 | 5.2 | 3.78 | 2025-06-25 | 15 | 16 | Friction stir welding; Phase transformation; Recrystallization; Wear properties | LOW-CARBON-STEEL; WELDED HIGH-CARBON; ABRASIVE WEAR; TEXTURE EVOLUTION; CRYSTALLOGRAPHIC TEXTURE; DELAMINATION THEORY; WELDING PARAMETERS; TENSILE PROPERTIES; WARM DEFORMATION; RESIDUAL-STRESS | Friction stir welding; Phase transformation; Recrystallization; Wear properties | Adhesives; Dynamic recrystallization; Friction; Grain refinement; Metal cutting; Microstructure; Research laboratories; Strain hardening; Wear of materials; Wear resistance; 3D Laser scanning; Back-scattered; Friction stir; Friction-stir-welding; Laser scanning microscope; Microstructure mechanical properties; Phases transformation; Recrystallisation; Sliding wear tests; Wear properties; Friction stir welding | English | 2023 | 2023-08 | 10.1016/j.triboint.2023.108646 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optimization study on the uniform temperature of an additively manufactured cooler for a semiconductor heating device | A semiconductor heating device is the core component of the apparatus used for testing semiconductor dies. It is important to heat semiconductor dies at a uniform temperature. The surface temperature of the cooler, which is a component of the heating device, directly affects heating temperature uniformity. Thus, a uniform temperature of the cooler enables uniform heating of semiconductor dies. In this study, we developed an optimization method for achieving temperature uniformity in coolers, using an approach based on a surrogate model. The technique developed in this study simplified the conjugate heat transfer in the channel network of a cooler. A body-centered cubic lattice core was adopted for the local augmentation of heat-transfer performance within the internal channel of the cooler. To reveal the effects of the flow speed and lattice column diameter on the pressure drop and heat transfer, a computational fluid dynamics simulation was implemented using a central composite design, with the Reynolds number and diameter ratio varying in the ranges of 3078-23852 and 0.0869-0.313, respectively. The surrogate model was defined after the dimensional analysis of a single channel and circuit analogy. A particle swarm optimization algorithm was adopted to determine the optimal column diameters of each lattice structure based on the surrogate model. The optimization of the cooler of the semiconductor heating device was assessed by comparing it with a model consisting of only identical lattices in each position. The results showed a prominent enhancement, wherein the deviation in the temperature was reduced by 83.4%. | Lee, Seung Yeop; Kim, Kun Woo; Kim, Da Hye; Yang, Min Seok; Kim, Ji Wook; Choi, Geuna; Lee, Jae Wook; Park, Il Seouk | Korea Inst Ind Technol KITECH, Smart Mfg Technol R&D Grp, Daegu 42994, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | ; Lee, Jae Wook/JWP-4626-2024; Lee, Seungyeop/MYR-2664-2025 | 57260442700; 35169979000; 56997864800; 57260442600; 57192960123; 57844456900; 57203144566; 50262800000 | sylee94@kitech.re.kr;jaewk@kitech.re.kr;einstein@knu.ac.kr; | APPLIED THERMAL ENGINEERING | APPL THERM ENG | 1359-4311 | 1873-5606 | 225 | SCIE | ENERGY & FUELS;ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2023 | 6.1 | 5.2 | 0.6 | 2025-06-25 | 5 | 5 | Design optimization; Surrogate model; Cooling device; Uniform temperature distribution; Additive manufacturing; Multi -thermal load region | FLUID-FLOW; NUMERICAL-SIMULATION; TRANSFER ENHANCEMENT; LATTICE; DESIGN; MODELS; RSM | Additive manufacturing; Cooling device; Design optimization; Multi-thermal load region; Surrogate model; Uniform temperature distribution | 3D printing; Additives; Computational fluid dynamics; Cooling systems; Heating equipment; Reynolds number; A: semiconductors; Cooling devices; Design optimization; Heating devices; Multi-thermal load region; Optimization studies; Surrogate modeling; Temperature uniformity; Uniform temperature; Uniform temperature distribution; Particle swarm optimization (PSO) | English | 2023 | 2023-05-05 | 10.1016/j.applthermaleng.2023.120178 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Relaxation-Assisted Magnetization Transfer Phenomena for a Sensitivity-Enhanced 2D NMR | 2D NOESY and TOCSY play central roles in contemporary NMR. We have recently discussed how solvent-driven exchanges can significantly enhance the sensitivity of such methods when attempting correlations between labile and nonlabile protons. This study explores two scenarios where similar sensitivity enhancements can be achieved in the absence of solvent exchange: the first one involves biomolecular paramagnetic systems, while the other involves small organic molecules in natural abundance. It is shown that, in both cases, the effects introduced by either differential paramagnetic shift and relaxation or by polarization sharing among networks of protons can provide a similar sensitivity boost, as previously discussed for solvent exchange. The origin and potential of the resulting enhancements are analyzed, and experiments that demonstrate them in protein and natural products are exemplified. Limitations and future improvements of these approaches are also briefly discussed. | Novakovic, Mihajlo; Kim, Jihyun; Su, Xun-Cheng; Kupce, Eriks; Frydman, Lucio | Weizmann Inst Sci, Dept Chem, IL-7610001 Rehovot, Israel; Weizmann Inst Sci, Dept Biol Phys, IL-7610001 Rehovot, Israel; Swiss Fed Inst Technol, Inst Biochem, Dept Biol, Honggerbergring 64, CH-8093 Zurich, Switzerland; Kyungpook Natl Univ, Dept Chem Educ, Daegu 41566, South Korea; Nankai Univ, Coll Chem, State Key Lab Elemento Organ Chem, Tianjin 300071, Peoples R China; Bruker Ltd, Coventry CV4 9GH, England | Su, Xun-Cheng/A-3182-2014 | 57193421004; 56954528100; 7402181996; 56244500200; 7005152784 | lucio.frydman@weizmann.ac.il; | ANALYTICAL CHEMISTRY | ANAL CHEM | 0003-2700 | 1520-6882 | 95 | 49 | SCIE | CHEMISTRY, ANALYTICAL | 2023 | 6.8 | 5.2 | 0.21 | 2025-06-25 | 0 | 2 | EXCHANGE SATURATION-TRANSFER; REFERENCE DECONVOLUTION; COHERENCE TRANSFER; T1 NOISE; SPECTROSCOPY; PROTON; SPECTRA; SHIFTS | Nuclear magnetic resonance; Nuclear magnetic resonance spectroscopy; Paramagnetism; American Chemical Society; Bio-molecular; Magnetization transfer; Natural abundance; Paramagnetic relaxation; Paramagnetic systems; Sensitivity enhancements; Small organic molecules; Solvent exchanges; Transfer phenomenon; Solvents | English | 2023 | 2023-11-27 | 10.1021/acs.analchem.3c03149 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Synergistic influences of laser surface texturing and ZrO2-MoDTC hybrid nanofluids for enhanced tribological performance | This study uses nanofluids and laser surface texturing (LST) synergistically to enhance tribological performance. ZrO2-MoDTC hybrid nanoparticles of different concentrations were used as lubricant additives in base oil. Microtextured patterns of different shapes and sizes were designed and created on steel pin surface by laser ablation, and their tribological performances were assessed using a pin-on-disc tribometer. Appropriate circular dimple textured (DT) surfaces with 0.5 wt% ZrO2-MoDTC hybrid nanofluid produced outstanding friction reduction and anti-wear performance than cross-groove textured (GT) and untextured (UT) surfaces. The average friction coefficient of DT reduced by approximately 24-28% and 57-60% than GT and UT surfaces, respectively. Analysis of the worn surface showed that the synergetic influences of the nanofluid and LST produced excellent tribological performance. | Segu, Dawit Zenebe; Chae, Younghun; Lee, Sung-Jun; Kim, Chang-Lae | Chosun Univ, Dept Mech Engn, Gwangju 61452, South Korea; Kyungpook Natl Univ, Inst Engn & Design, Daegu 80, South Korea | 55195600700; 7101749123; 57224103151; 39862971200 | kimcl@chosun.ac.kr; | TRIBOLOGY INTERNATIONAL | TRIBOL INT | 0301-679X | 1879-2464 | 183 | SCIE | ENGINEERING, MECHANICAL | 2023 | 6.1 | 5.2 | 1.87 | 2025-06-25 | 15 | 16 | Lubricant additive; Nanofluid; Surface texture; Tribological performance | FRICTION; NANOPARTICLES; LUBRICANT; ADDITIVES; ANTIWEAR; ENGINE; ZRO2; CUO | Lubricant additive; Nanofluid; Surface texture; Tribological performance | Additives; Friction; Laser ablation; Nanofluidics; Textures; Zirconia; Base oil; Different shapes; Different sizes; Hybrid nanofluid; Hybrid nanoparticle; Laser surface texturing; Lubricant additives; Nanofluids; Surface textures; Tribological performance; Tribology | English | 2023 | 2023-05 | 10.1016/j.triboint.2023.108377 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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