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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
Article Impact of Emotional Labor and Positive Psychological Capital on the Turnover Intention of Nurses Caring for Patients with COVID-19: A Descriptive Survey Study Nurses' turnover intention has increased since the COVID-19 pandemic. Emotional labor is reportedly high among nurses in Korea, and a positive psychological capital can help reduce turnover intention. This cross-sectional study investigated the factors influencing turnover intention in nurses during the COVID-19 pandemic. Survey data were collected from 155 nurses caring for patients with COVID-19 at a university hospital in South Korea in March 2022. Self-reported and paper-based questionnaires on emotional labor, positive psychological capital, and turnover intention were employed. The mean values for emotional labor, positive psychological capital, and turnover intention were 54.52/80, 58.03/90, and 38.92/50, respectively, and 77.8% of nurses reported planning to quit working. Turnover intention correlated with emotional labor (r = 0.17; p=0.041) and had no significant relationship with positive psychological capital. Sex (beta = 0.24; p=0.003) and emotional labor (beta = 0.18; p=0.019) affected turnover intention, with 9% explanatory power. Female nurses caring for patients with COVID-19 had a higher turnover intention than male nurses. Finally, the higher the emotional labor of nurses caring for patients with COVID-19, the higher the turnover intention. To reduce the turnover intention of nurses, hospitals need to help them enhance their emotional labor and positive psychological capital by establishing measures such as emotional coaching programs or psychological capital interventions. Kwon, Mira; Song, Yeoungsuk Kyungpook Natl Univ Hosp, Clin Trial Ctr, Daegu, South Korea; Kyungpook Natl Univ, Coll Nursing, Res Inst Nursing Sci, Daegu, South Korea Song, Yeoungsuk/MSZ-3096-2025 58838294100; 55494171100 alfk7066@naver.com;asansong@knu.ac.kr; JOURNAL OF NURSING MANAGEMENT J NURS MANAGE 0966-0429 1365-2834 2024 SSCI;SCIE MANAGEMENT;NURSING 2024 4 2.9 2.54 2025-04-16 4 4 PROGRAM; LEAVE Adult; COVID-19; Cross-Sectional Studies; Emotions; Female; Humans; Intention; Job Satisfaction; Male; Middle Aged; Nurses; Nursing Staff, Hospital; Personnel Turnover; Republic of Korea; SARS-CoV-2; Surveys and Questionnaires; adult; behavior; coronavirus disease 2019; cross-sectional study; emotion; epidemiology; female; human; job satisfaction; male; middle aged; nurse; nursing staff; personnel management; psychology; questionnaire; Severe acute respiratory syndrome coronavirus 2; South Korea English 2024 2024-01-08 10.1155/2024/5517249 바로가기 바로가기 바로가기 바로가기
Article Investigating Large-Scale RIS-Assisted Wireless Communications Using GNN Channel estimation (CE) in reconfigurable intelligent surfaces (RIS)-assisted wireless communication systems is challenging when using traditional CE methods due to their computational intensity and inaccuracies, especially in large-scale RIS environments. These limitations directly impact the achievable data rate, which relies heavily on accurate channel state information (CSI) obtained from CE. To overcome these challenges, we propose a novel approach that utilizes graph neural networks (GNN) with region-specific training models. The GNN is employed to obtain CSI for carefully selected regions in a given large-scale area of interest (AOI) using a trial-based method, where different system configurations and parameters are tried, and the achieved performance for different assessing region sizes is evaluated. This ensures that the chosen regions effectively act as representative samples for the entire AOI. By leveraging the GNN-based CEs for these selected regions, we can accurately predict the performance for users in any AOI region. Additionally, we optimize the placement of double RISs to further enhance system performance. Extensive simulations are conducted to validate our approach and demonstrate its effectiveness in achieving accurate system performance with reduced complexity in large-scale communication systems. Lyu, Shuai; Peng, Limei; Chang, Shih Yu Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea; San Jose State Univ, Sch Appl Data Sci, San Jose, CA 95192 USA 57991691600; 7201574271; 57221159388 chanceuxshuai@knu.ac.kr;auroraplm@knu.ac.kr;shihyu.chang@sjsu.edu; IEEE TRANSACTIONS ON CONSUMER ELECTRONICS IEEE T CONSUM ELECTR 0098-3063 1558-4127 70 1 SCIE ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS 2024 10.9 2.9 1.58 2025-05-07 3 6 Array signal processing; Wireless communication; Training; Graph neural networks; System performance; Optimization; Artificial neural networks; Reconfigurable intelligent surfaces (RIS); graph neural network (GNN); channel estimation; region-specific model INTELLIGENT REFLECTING SURFACE; DESIGN channel estimation; graph neural network (GNN); Reconfigurable intelligent surfaces (RIS); region-specific model Array processing; Channel estimation; Graph neural networks; Array signal processing; Graph neural network; Graph neural networks; Optimisations; Reconfigurable; Reconfigurable intelligent surface; Region-specific model; Systems performance; Wireless communications; Channel state information English 2024 2024-02 10.1109/tce.2023.3349153 바로가기 바로가기 바로가기 바로가기
Article Lyapunov-Guided Long-Term Fairness-Aware Federated Learning for Collaborative TinyML on Edge Devices Although federated learning (FL) has become a privacy-preserving machine learning paradigm that enables a collaborative form of tiny machine learning (TinyML) on edge devices, unfairness may arise when the performance of the global model varies due to heterogeneous devices and data. Existing works mainly focus on improving fairness in a single time slot, often ignoring the temporal coupling of FL in TinyML. To tackle this issue, we introduce a novel long-term fairness-aware model aggregation mechanism, named FedLV, which aims to reduce the accuracy distribution variance by considering the FL process as a whole. Specifically, we introduce the long-term fairness criterion as well as the long-term fairness problem into the design of FedLV for FL. To promote the global model's performance, we quantify the long-term guarantee of clients' contributions, and transform the long-term fairness problem into a queue stability problem via Lyapunov optimization. Since the global model's accuracy distribution is unmeasurable before model aggregation, we further propose a prior estimation solver to derive an approximately optimal solution and provide theoretical proof of the solver's convergence. Extensive experiments conducted on four real-world datasets demonstrate that the accuracy distribution variance of FedLV is at least 12% lower than that of both FedAvg and q-FFL. Lu, Jianfeng; Sheng, Yuhang; Cao, Shuqin; Elnaffar, Said; Saad, Malik Muhammad; Seid, Abegaz Mohammed; Erbad, Aiman Wuhan Univ Sci & Technol, Sch Comp Sci & Technol, Wuhan 430065, Peoples R China; Wuhan Univ Sci & Technol, Hubei Prov Key Lab Intelligent Informat Proc & Rea, Wuhan 430065, Peoples R China; Zhejiang Normal Univ, Sch Math Sci, Jinhua 321004, Peoples R China; Canadian Univ Dubai, Sch Engn Appl Sci & Technol, Dubai, U Arab Emirates; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea; Hamad Bin Khalifa Univ, Coll Sci & Engn, Doha, Qatar Erbad, Aiman/ABH-8517-2020; Saad, Malik/ABF-9433-2021; Abegaz, Mohammed/AAR-8164-2021 55547138975; 58982651900; 57208133771; 8723952700; 57220715290; 57221744853; 24528481900 lujianfeng@zjnu.edu.cn;sheng981005@163.com;shuqincao@wust.edu.cn;said.elnaffar@cud.ac.ae;maliksaad@knu.ac.kr;mamsied2002@gmail.com;aerbad@hbku.edu.qa; IEEE TRANSACTIONS ON CONSUMER ELECTRONICS IEEE T CONSUM ELECTR 0098-3063 1558-4127 70 4 SCIE ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS 2024 10.9 2.9 1.05 2025-04-16 3 5 Optimization; Data models; Computational modeling; Performance evaluation; Consumer electronics; Training; Estimation; Federated learning; long-term fairness; Lyapunov optimization; tiny machine learning CLIENT SELECTION Federated learning; long-term fairness; Lyapunov optimization; tiny machine learning Couplings; E-learning; Privacy-preserving techniques; Computational modelling; Federated learning; Global models; Long term fairness; Lyapunov optimization; Machine-learning; Optimisations; Performances evaluation; Tiny machine learning; Machine learning English 2024 2024-11 10.1109/tce.2024.3397863 바로가기 바로가기 바로가기 바로가기
Article Novel Mismatch Parameter-Dependent Stabilization Approach Based on Sampled-Data Fuzzy Lyapunov Function This article concentrates on the sampled-data control problem by utilizing a novel mismatch parameter-dependent stabilization method for the Takagi-Sugeno (T-S) fuzzy system. First, taking the information on sampled-parameter and fuzzy weighted function into account, a novel sampled-parameter-dependent fuzzy Lyapunov function is proposed. Furthermore, an affine matched sampled-data controller is designed to contain an affine transformed membership function, thereby achieving larger stabilizable regions. Based on a novel fuzzy Lyapunov function and parameterized matrices bounding technique, a sufficient condition concerning the asymptotic stability of the closed-loop fuzzy system is formulated in the form of linear matrix inequality. In comparison with the prior works, the derived condition has less conservative and the largest sampling interval. Numerical experiments on Rosser's system confirm the advantages and benefits of the novel mismatch parameter-dependent stabilization approach. Pan, Xiaozhen; Han, Seungyong; Lee, Sangmoon Hangzhou Dianzi Univ, Sch Cyberspace, Hangzhou 310018, Peoples R China; Korea Atom Energy Res Inst KAERI, Daejeon 34057, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea ; Han, Seungyong/AAN-8632-2021; Lee, Sangmoon/C-4502-2018 57201614117; 57200991395; 59510733500 panxiaozhenvvip@163.com;seungyong@kaeri.re.kr;moony@knu.ac.kr; IEEE TRANSACTIONS ON FUZZY SYSTEMS IEEE T FUZZY SYST 1063-6706 1941-0034 32 4 SCIE COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC 2024 11.9 2.9 2.03 2025-05-07 5 6 Lyapunov methods; Stability criteria; Fuzzy systems; Asymptotic stability; Symmetric matrices; Numerical stability; Linear matrix inequalities; Affine matched premises; fuzzy system; Lyapunov stability theory; parameterized linear matrix inequalities (PLMIs); sampled-data control TP MODEL TRANSFORMATION; STABILITY ANALYSIS; SYSTEMS; MATRIX; PERFORMANCE; CRITERIA Affine matched premises; fuzzy system; Lyapunov stability theory; parameterized linear matrix inequalities (PLMIs); sampled-data control Asymptotic stability; Feedback control; Fuzzy systems; Lyapunov functions; Lyapunov methods; Membership functions; Numerical methods; Sampled data control systems; Stability criteria; Stabilization; Affine matched premise; Linear matrix in equalities; Lyapunov's methods; Lyapunov's stability theories; Parameter dependents; Parameterized linear matrix inequality; Sampled-data control; Stability criterions; Symmetric matrices; Linear matrix inequalities English 2024 2024-04 10.1109/tfuzz.2023.3330907 바로가기 바로가기 바로가기 바로가기
Article Nurses' Experiences from Patient Safety Incidents of Hospitalized Children: A Qualitative Study This qualitative study aimed at exploring nurses' experiences concerning patient safety incidents among hospitalized children in South Korea. From August 4 to 12, 2023, data were collected through in-depth individual interviews involving 14 clinical nurses. Employing thematic analysis, we identified 8 themes, which coalesced into three theme clusters: "challenges in pediatric patient safety nursing due to patient and caregiver characteristics," "emotional changes in nurses following patient safety incidents," and "sincere desire to prevent patient safety incidents in pediatric patients" The findings underscored that nurses experience significant burdens related to patient safety, emphasizing the necessity for robust support from caregivers, healthcare institutions, and national policies. Consequently, it is imperative to develop and implement programs and policies to foster a secure care environment for pediatric patients. Nurse managers and organizations must proactively design healthcare systems and related policies that prioritize safely protecting pediatric patients and nurses alike from patient safety incidents, considering the characteristics of pediatric patients and the experiences of the nurses caring for them. Lee, Haeyoung; Kim, Yujeong Chung Ang Univ, Red Cross Coll Nursing, Seoul, South Korea; Kyungpook Natl Univ, Res Inst Nursing Innovat, Coll Nursing, Daegu, South Korea Lee, Haeyoung/NRA-8461-2025 57205471062; 57200941945 im0202@cau.ac.kr;yujeongkim@knu.ac.kr; JOURNAL OF NURSING MANAGEMENT J NURS MANAGE 0966-0429 1365-2834 2024 SSCI;SCIE MANAGEMENT;NURSING 2024 4 2.9 2.27 2025-05-07 1 2 2ND VICTIM; PARTICIPATION; NEEDS; CARE Adult; Child; Child, Hospitalized; Female; Humans; Interviews as Topic; Male; Middle Aged; Nurses; Patient Safety; Qualitative Research; Republic of Korea; article; caregiver; child; female; health care system; human; infant; interview; nurse; nurse manager; patient safety; pediatric patient; qualitative research; South Korea; thematic analysis; adult; hospitalized child; male; middle aged; procedures; psychology; qualitative research English 2024 2024-07-12 10.1155/2024/1826514 바로가기 바로가기 바로가기 바로가기
Article Observer-Based Adaptive Event-Triggered Control for Interval Type-2 Fuzzy Systems Under Multiple Cyber-Attacks This article focuses on the observer-based event-triggered (ET) scheme issue for interval type-2 (IT-2) fuzzy systems under the multiple cyber-attacks including false data injection (FDI) attacks and denial-of-service (DoS) attacks. Considering both intermittency of DoS attacks and unmeasurable of partial systems, a switched observer-based nonlinear systems in the form of IT-2 fuzzy models is established. An adaptive event-triggered (AET) scheme that can modulate the threshold value is proposed for better saving the communication resources. Considering the impact of stochastic FDI attacks, a switched AET controller is designed. Then, Lyapunoval analysis method is developed such that the augmented error IT-2 fuzzy systems is mean square exponentially stable with H-infinity performance. Finally, a practical example is employed to reflect the validity of the approach. Liu, Yajuan; Zhang, Pengcheng; Lee, Sangmoon; Xie, Xiangpeng North China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China; Nanjing Univ Sci & Technol, Sch Automat, Nanjing 210094, Peoples R China; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Nanjing Univ Posts & Telecommun, Inst Adv Technol, Nanjing 210023, Peoples R China ; Xie, Xiangpeng/ABD-7974-2021; Lee, Sangmoon/C-4502-2018; zhang, pengcheng/B-2618-2008; Yajuan, Liu/JZD-8537-2024 55255775300; 58043447700; 59510733500; 26032736600 yajuan.liu.12@gmail.com;zhangpengcheng@njust.edu.cn;moony@knu.ac.kr;xiexp@njupt.edu.cn; IEEE TRANSACTIONS ON FUZZY SYSTEMS IEEE T FUZZY SYST 1063-6706 1941-0034 32 4 SCIE COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;ENGINEERING, ELECTRICAL & ELECTRONIC 2024 11.9 2.9 5.68 2025-05-07 18 18 Fuzzy systems; Observers; Switches; Cyberattack; Jamming; Adaptive systems; Symmetric matrices; An adaptive event-triggered (AET) scheme; interval type-2 (IT-2) fuzzy systems; multiple cyber-attacks; state observer STABILIZATION An adaptive event-triggered (AET) scheme; interval type-2 (IT-2) fuzzy systems; multiple cyber-attacks; state observer Adaptive control systems; Crime; Denial-of-service attack; Jamming; Network security; Stochastic systems; An adaptive event-triggered scheme; Cyber-attacks; Event-triggered; Interval type-2 fuzzy; Interval type-2 fuzzy system; Jamming; Multiple cybe attack; Observer; States observer; Symmetric matrices; Type-2 fuzzy systems; Fuzzy systems English 2024 2024-04 10.1109/tfuzz.2024.3354241 바로가기 바로가기 바로가기 바로가기
Article Paleozoic tectonic evolution of the proto-Korean Peninsula along the East Asian continental margin from detrital zircon U-Pb geochronology and Hf isotope geochemistry Detrital zircon geochronology and Hf isotope analysis can be used for inferring provenance characteris-tics, and to evaluate the tectonic evolution of sedimentary basins and their link with regional orogenesis. The Paleozoic sequences of the Okcheon Belt consist of the Lower Paleozoic Joseon and the Upper Paleozoic Pyeongan supergroups with Middle Paleozoic hiatus locally on top of the Neoproterozoic bimo-dal volcanic rocks, reflecting an intracontinental rift setting between the two basements (viz. Gyeonggi and Yeongnam massifs) at southern part of the Korean Peninsula. Our detrital zircon U-Pb ages and Lu-Hf isotope results show that all these Paleozoic strata commonly have Paleoproterozoic and Paleozoic zircon ages with rare Meso-to Neoproterozoic ages. The individual zircon populations display following features, allowing estimation of their sedimentary provenances: (i) The Paleoproterozoic zircons (ca. 1.85 Ga and 2.50 Ga) with similar ranges of eHf(t) values are most common in the basement rocks of the Korean Peninsula, and were sourced from both the Gyeonggi and Yeongnam massifs. (ii) The Meso-to Neoproterozoic zircons, preserved only in the Middle to Late Cambrian clastic sedimen-tary rocks within the carbonate sequences probably reflect proximal provenance. (iii) The youngest Paleozoic zircons of each formation, almost coincident with their deposition ages, suggest presence of syndepositional magmatism, indicating proximal magmatic sources during their deposition. (iv) The Cambrian-Ordovician zircons, from the Lower Paleozoic sequences, but rare in the successive Upper Paleozoic sequences, suggest a provenance change after the hiatus between the two sedimentary successions. (v) The Permian zircons showing different eHf(t) values indicate that detrital sources were varied at that time. The integrated results in our study suggest provenance variability linked to diverse tectonic environments, reflecting prolonged subduction-related crustal evolution of the proto-Korean Peninsula during the Paleozoic.(c) 2023 China University of Geosciences (Beijing) and Peking University. Published by Elsevier B.V. on behalf of China University of Geosciences (Beijing). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Jang, Yirang; Kim, Sung Won; Samuel, Vinod O.; Kwon, Sanghoon; Park, Seung-Ik; Santosh, M.; Yi, Keewook Chonnam Natl Univ, Dept Earth & Environm Sci, Gwangju 61186, South Korea; Korea Inst Geosci & Mineral Resources, Geol Div, Daejeon 34132, South Korea; Yonsei Univ, Dept Earth Syst Sci, Seoul 03722, South Korea; Kyungpook Natl Univ, Dept Geol, Daegu 41566, South Korea; China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China; Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia; Yonsei Univ, Yonsei Frontier Lab, Seoul 03722, South Korea; Korea Basic Sci Inst, Div Earth & Environm Sci, Chungbuk 28119, South Korea Yi, Keewook/R-3356-2019; Santosh, M/B-2563-2012; Kim, Sung/U-2460-2017 55366462500; 50561745800; 56068101600; 7402624141; 55832472000; 57531732700; 14024935800 skwon@yonsei.ac.kr; GEOSCIENCE FRONTIERS GEOSCI FRONT 1674-9871 15 1 SCIE GEOSCIENCES, MULTIDISCIPLINARY 2024 8.9 2.9 2.53 2025-04-16 8 6 Detrital zircon U-Pb and Hf isotopes; Paleozoic metasedimentary rocks; Okcheon Belt; Taebaeksan zone; Korean Peninsula NEOPROTEROZOIC BIMODAL VOLCANISM; WESTERN GYEONGGI MASSIF; NORTH CHINA BLOCK; FOLD-THRUST BELT; SOUTH-KOREA; YEONGNAM MASSIF; OKCHEON BELT; PYEONGAN SUPERGROUP; TAEBAEKSAN BASIN; OGCHEON BELT Detrital zircon U-Pb and Hf isotopes; Korean Peninsula; Okcheon Belt; Paleozoic metasedimentary rocks; Taebaeksan zone Korea; continental margin; geochemistry; geochronology; hafnium; metasedimentary rock; provenance; tectonic evolution; uranium-lead dating; zircon English 2024 2024-01 10.1016/j.gsf.2023.101700 바로가기 바로가기 바로가기 바로가기
Article Quantum Secure Disease Surveillance Through Private Set Intersection The healthcare pandemic (for instance, the recently ongoing Coronavirus disease (COVID-19) pandemic) presented a challenge for researchers to find novel techniques to limit the transmission of the virus. In this context, contact tracing has emerged as an important method to curb the spread of disease. Although it can help combat disease outbreaks, if the contact tracing is executed without careful consideration then it could jeopardize the users' privacy. The cryptographic technique, private set intersection (PSI) appears to be a logical solution. However, many existing PSI protocols rely on the security of number theory based problems, which are vulnerable in the quantum domain. Therefore, to address this issue we present a PSI protocol (namely qPSI) based on quantum cryptography. The communication and computational costs of existing schemes depend on the universal set size N. In comparison, qPSI requires computational and communication costs, which are independent of the universal set size N. Moreover, the existing Bloom filter based quantum PSI does not provide the exact intersection due to high false positive rate of the Bloom filter of server's private set, whereas qPSI is not affected by the false positive rate and provides the exact set intersection. In addition, quantum PSI protocols use multi-particle entangled state or N single photons, and complicated oracle operators in N-dimensional Hilbert space. On the other hand, qPSI only utilizes single-photon quantum resources and projective measurements operations over a 2-dimensional Hilbert space. Therefore, qPSI is simple and efficient when compared to other existing PSI protocols in the state-of-the-art. Sarkar, Sushmita; Mohanty, Tapaswini; Srivastava, Vikas; Debnath, Sumit Kumar; Das, Ashok Kumar; Park, Youngho Natl Inst Technol Jamshedpur, Dept Math, Jamshedpur 831014, India; Int Inst Informat Technol, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, India; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea ; DEBNATH, SUMIT/AAB-6425-2019; Das, Ashok/ADT-4705-2022 59208211700; 57473577800; 57351589400; 56562621700; 55450732800; 56962990300 sarkarsushmita408@gmail.com;mtapaswini37@gmail.com;vikas.math123@gmail.com;sdebnath.math@nitjsr.ac.in;ashok.das@iiit.ac.in;parkyh@knu.ac.kr; IEEE TRANSACTIONS ON CONSUMER ELECTRONICS IEEE T CONSUM ELECTR 0098-3063 1558-4127 70 3 SCIE ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS 2024 10.9 2.9 0.32 2025-05-07 4 4 Protocols; Complexity theory; Hilbert space; Contact tracing; Servers; Privacy; Diseases; Private set intersection (PSI); quantum cryptography; long-term security; bloom filter; quantum-enabled consumer applications bloom filter; long-term security; Private set intersection (PSI); quantum cryptography; quantum-enabled consumer applications Data structures; Diseases; Hilbert spaces; Number theory; Particle beams; Quantum cryptography; Quantum entanglement; Vector spaces; Vectors; Viruses; Bloom filters; Complexity theory; Consumer applications; Contact tracing; Intersection protocols; Long-term security; Privacy; Private set intersection; Quantum-enabled consumer application; Set intersection; Photons English 2024 2024-08 10.1109/tce.2024.3435860 바로가기 바로가기 바로가기 바로가기
Article Smart Contract-Based Access Control Scheme for Blockchain Assisted 6G-Enabled IoT-Based Big Data Driven Healthcare Cyber Physical Systems 6G (sixth-generation wireless), the successor to 5G cellular technology, operates at higher frequencies than its predecessor and supports significantly greater capacity and markedly reduced latency. Healthcare is treated as a complex system with various stakeholders, like doctors, patients, hospitals, pharmaceutical companies as well as healthcare decision-makers. The innovations in the Internet of Things (IoT) and incorporating emerging technology in the healthcare systems provide the quality of services to the people and save millions of lives. However, patient privacy and secure interchange of medical data from various healthcare providers need to be adequately addressed. Furthermore, incorporating blockchain in the healthcare system helps to make the system more transparent and secure due to inherent properties of the blockchain. In addition, Big Data analytics helps in analyzing large datasets from hundreds of patients, and then in identifying various clusters and correlation among datasets, and also in developing predictive models. In this paper, we aim to propose a new smart contract-based access control for 6G-enabled blockchain assisted in the healthcare system (in short, we call it as SACS). SACS provides a patient to communicate with its healthcare management authority securely and helps to interchange his/her medical information across healthcare providers. A detailed security analysis, experimental results and comparative study assure that the proposed SACS is secure by preventing possible active and passive attacks, andrequires less computational and communication costs as compared to those for other relevant competing schemes. Saha, Sourav; Kumar Das, Ashok; Wazid, Mohammad; Park, Youngho; Garg, Sahil; Alrashoud, Mubarak Int Inst Informat Technol, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, India; Graph Era Deemed Univ, Dept Comp Sci Engn, Dehra Dun 248002, India; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Ecole Technol Super, Elect Engn Dept, Montreal, PQ H3C1K3, Canada; Chitkara Univ, Chitkara Univ Inst Engn & Technol, Ctr Res Impact & Outcome, Rajpura 140401, Punjab, India; King Saud Univ, Coll Comp & Informat Sci, Dept Software Engn, Riyadh 11543, Saudi Arabia WAZID, MOHAMMAD/X-4211-2018; Alrashoud, Mubarak/ABD-1261-2020; Garg, Sahil/AAN-2480-2020; Das, Ashok Kumar/U-2790-2019; wazid, mohammad/X-4211-2018; Saha, Sourav/LSL-9012-2024 57207760870; 57217042560; 55480987400; 56962990300; 55601765300; 56344853700 sourav.saha@research.iiit.ac.in;iitkgp.akdas@gmail.com;wazidkec2005@gmail.com;parkyh@knu.ac.kr;sahil.garg@ieee.org;malrashoud@ksu.edu.sa; IEEE TRANSACTIONS ON CONSUMER ELECTRONICS IEEE T CONSUM ELECTR 0098-3063 1558-4127 70 4 SCIE ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS 2024 10.9 2.9 3.15 2025-04-16 6 13 Blockchains; Hospitals; 6G mobile communication; Data privacy; Privacy; Medical diagnostic imaging; Consumer electronics; Internet of Things (IoT); 6G; healthcare applications; access control and key agreement; blockchain; big data analytics; security SECURE AUTHENTICATION SCHEME; KEY AGREEMENT SCHEME; INTERNET; FRAMEWORK 6G; access control and key agreement; big data analytics; blockchain; healthcare applications; Internet of Things (IoT); security 5G mobile communication systems; Big data; Blockchain; Data privacy; Decision making; Diagnosis; Embedded systems; Hospitals; Internet of things; Medical imaging; Patient treatment; 6g; 6g mobile communication; Access control and key agreement; Big data analytic; Block-chain; Data analytics; Helathcare application; Internet of thing; Key agreement; Medical diagnostic imaging; Mobile communications; Privacy; Security; Access control English 2024 2024-11 10.1109/tce.2024.3391667 바로가기 바로가기 바로가기 바로가기
Article A Joule-heating-derived multiphase porous TiO2 support for reinforcing high-entropy alloy catalysts Single -crystal nanocrystals of catalytic metals and oxides are essential for understanding chemical interactions on well-defined catalyst surfaces. However, a comprehensive understanding of the crystallographic origins for such enhancement has been lacking. This work provides formal evidence of the structure - property relationship through a model study on single -crystal TiO 2 . Our approach involves transient pulse heating to manipulate porosity and phase in epitaxially-grown TiO 2 nanosheets along the (0 0 1) plane. Furthermore, we could introduce high -entropy alloy nanoparticles into the system, which exhibited excellent catalytic activity toward CO oxidation, achieving T 90 at 143 degrees C. This improved performance is attributed to the interplay between the catalytic nanoparticles and the multiphase support, facilitating CO and O 2 adsorption. Our study contributes to a fundamental understanding of structure - property relationships in heterogeneous catalyst systems. Overall, our thermal shock synthesis approach shows much promise for developing single crystal -based advanced nanocatalysts with broad practical implications. Park, Seyeon; Woo, Sungyoon; Kim, Jina; Lee, Jaewoong; Lee, Hyunji; Kim, Kyung-min; Ahn, Jaewan; Kim, Hyun-Tak; Kim, Young Jin; Kim, Jihan; Kim, Il-Doo; Kim, Sang-Joon Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, 291 Daehak Ro Yuseong Gu, Daejeon 34141, South Korea; Korea Res Inst Chem Technol KRICT, Ctr CO 2 & Energy, 141 Gajeong Ro Yuseong Gu, Daejeon 34114, South Korea; Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, 291 Daehak Ro Yuseong Gu, Daejeon 34141, South Korea; Univ Sci & Technol UST, Dept Adv Mat & Chem Engn, 141 Gajeong Ro Yuseong Gu, Daejeon 34114, South Korea; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea ; Park, Seyeon/NGQ-9254-2025; Ahn, Jaewan/ABB-3453-2020; Kim, Jung Oh/JDC-5061-2023; Kim, Kyung-Min/AAM-6437-2020 57216978621; 58568871400; 59145961500; 58701352000; 57196309539; 56972688600; 57194394248; 57190973704; 59054565400; 53164144700; 36037925300; 57200116621 idkim@kaist.ac.kr;sangjoon@krict.re.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 493 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 1.1 2025-05-07 3 4 Joule heating; Single crystal TiO 2; CO oxidation; Multiphase support; High -entropy alloy TOTAL-ENERGY CALCULATIONS; RUTILE PHASE-TRANSITION; ANATASE TIO2; SINGLE-CRYSTALS; CO OXIDATION; LIGHT-OFF; IN-SITU; FACET; PERFORMANCE; EFFICIENCY CO oxidation; High-entropy alloy; Joule heating; Multiphase support; Single crystal TiO<sub>2</sub> Catalyst activity; Catalytic oxidation; Cobalt alloys; Crystal structure; Entropy; Joule heating; Nanocatalysts; Nanoparticles; Single crystals; Alloy catalyst; Catalytic metals; Chemical interactions; CO oxidation; High entropy alloys; Joules heating; Multiphase support; Multiphases; Single crystal TiO2; Structure-properties relationships; Titanium dioxide English 2024 2024-08-01 10.1016/j.cej.2024.152551 바로가기 바로가기 바로가기 바로가기
Review Adsorption of pharmaceuticals from water using metal-organic frameworks (MOFs), MOF-derived carbons, covalent-organic frameworks (COFs), COF-derived carbons: Comparison of the four adsorbents In this work, the preparation, functionalization, and properties (including strong and weak points) of four highly studied (in recent days) porous materials like metal-organic frameworks (MOFs), MOF-derived carbons, covalent-organic frameworks (COFs), and COF-derived carbons are analyzed. Next, the progress on the adsorption of pharmaceuticals like sulfamethoxazole, diclofenac, and carbamazepine (that are the top three most frequently observed pharmaceuticals in water) over the four adsorbents is also analyzed in order to understand the competitiveness of the adsorbents and possible applications. After a summary of the work, the next potential research or future perspectives are suggested. Ahmed, Imteaz; Lee, Gyudong; Lee, Hye Jin; Jhung, Sung Hwa Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea ; LEE, HYEJIN/W-1345-2018; Jhung, Sung/AAO-6683-2021 55377179600; 57200987600; 56569175200; 6701659467 sung@knu.ac.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 488 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 4.44 2025-05-07 46 49 Adsorption; Covalent-organic frameworks; COF-derived carbons; Metal-organic frameworks; MOF-derived carbons; Pharmaceuticals PERSONAL CARE PRODUCTS; DOPED POROUS CARBON; NANOPOROUS CARBON; REMOVAL; DESIGN; SULFAMETHOXAZOLE; DICLOFENAC; FUNCTIONALIZATION; CRYSTALLINE; BEHAVIORS Adsorption; COF-derived carbons; Covalent-organic frameworks; Metal-organic frameworks; MOF-derived carbons; Pharmaceuticals Amides; Metal-Organic Frameworks; Porous materials; Covalent organic frameworks; Covalent-organic framework-derived carbon; Derived carbons; Functionalizations; Metal-organic framework-derived carbon; Metalorganic frameworks (MOFs); Property; Adsorption English 2024 2024-05-15 10.1016/j.cej.2024.151022 바로가기 바로가기 바로가기 바로가기
Review Advancements and challenges in catalytic hydrothermal liquefaction of lignocellulosic biomass: A comprehensive review Hydrothermal liquefaction (HTL) is one of the leading technologies for converting lignocellulosic biomass waste into liquid bio-oil to meet the growing energy demands and alleviate environmental crises. In this comprehensive review, an examination and comparison were conducted on three distinct technologies: HTL, Microwave-Assisted Hydrothermal Liquefaction (MA-HTL), and Co-hydrothermal Liquefaction (Co-HTL). The assessment encompassed various parameters, including production efficiency, bio-oil quality, production cost, and operational conditions. Furthermore, the pivotal role of catalysts in enhancing the bio-oil quality was explored. The corresponding catalytic attributes, spanning homogenous, heterogeneous, and combined catalysts, along with the associated mechanisms such as depolymerization, decarboxylation, decarbonylation, hydrogenation, dehydration, deoxygenation, and hydrodeoxygenation, were thoroughly examined. Additionally, the review delved into upgrading technologies and potential applications of bio-oil to broaden its utility. The current challenges and future prospects concerning bio-oil production using HTL technologies were also addressed. Le, Thu-Huong; Wang, Shuang; Kim, Beom-Sik; Nam, Hyungseok; Lee, Doyeon Hanbat Natl Univ, Dept Civil & Environm Engn, Daejeon 34158, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA; Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Daejeon 34141, South Korea ; Kim, Kyung/I-5501-2015 59326879300; 57216215741; 35303062500; 57190418228; 55881252900 namhs219@knu.ac.kr;dylee82@hanbat.ac.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 498 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 2.2 2025-05-07 12 14 Hydrothermal liquefaction; Lignocellulosic biomass; Biofuel; Catalyst; Microwave-assisted HTL; Co-HTL BIO-OIL PRODUCTION; CO-LIQUEFACTION; RICE STRAW; PROCESS OPTIMIZATION; CRUDE PRODUCTION; RANEY-NICKEL; KRAFT LIGNIN; FORMIC-ACID; BIOCRUDE; FUELS Biofuel; Catalyst; Co-HTL; Hydrothermal liquefaction; Lignocellulosic biomass; Microwave-assisted HTL Bio-oils; Co-hydrothermal liquefaction; Hydrothermal liquefactions; Lignocellulosic biomass; Microwave-assisted hydrothermal; Microwave-assisted hydrothermal liquefaction; Oil quality; ]+ catalyst English 2024 2024-10-15 10.1016/j.cej.2024.155559 바로가기 바로가기 바로가기 바로가기
Article An S-scheme heterointerface-engineered high-performance ternary NiAl-LDH@TiO2/Ti3C2 MXene photocatalytic system for solar-powered CO2 reduction to produce energy-rich fuels While there is much potential for photocatalytic CO2 reduction, poor light absorption and high recombination rates of photogenerated charges limit its effectiveness. To address these challenges, we systematically developed a heterointerface-engineered ternary hybrid photocatalyst comprising NiAl-layered double hydroxide (LDH), titanium dioxide (TiO2), and titanium carbide (Ti3C2) MXene via an in situ growth approach. As a result of the unique combination of these three components, the synthesized ternary NiAl-LDH@TiO2/Ti3C2 photocatalyst demonstrated broad light absorption spanning across the ultraviolet, visible, and near-infrared regions, as well as elevated CO2 adsorption capacity. In situ-irradiated X-ray photoelectron spectroscopy and electron paramagnetic resonance analyses provided compelling evidence for an unconventional S-scheme charge transfer mechanism in the ternary system that effectively separates the charges and suppresses recombination, allowing NiAl-LDH to maintain its strong reducing capacity and TiO2 to maintain its robust oxidizing capacity. Utilizing the complementary and synergistic properties of these three components (NiAl-LDH, TiO2, and Ti3C2), an optimized ternary NiAl-LDH@TiO2/Ti3C2 photocatalyst with 30 wt% Ti3C2 exhibited extraordinary solar-driven CO2 reduction performance with a remarkable 99 % CO selectivity against competitive H2 production and a high apparent quantum yield of 0.81 at 365 nm. Additionally, the ternary photocatalyst exhibited excellent stability, maintaining its performance capacity over multiple CO2 reduction cycles. This work provides a fresh perspective on designing and creating efficient ternary S-scheme photocatalytic systems for solar-driven CO2 reduction and highlights the potential for energy-rich fuel production. Lee, Dong-Eun; Devthade, Vidyasagar; Abraham, B. Moses; Jo, Wan-Kuen; Tonda, Surendar Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Indian Inst Technol Hyderabad IITH, Dept Chem, Kandi 502285, Telangana, India; Univ Barcelona, Dept Ciencia Mat & Quim Fis, c Marti i Franques 1-11, Barcelona 08028, Spain; Univ Barcelona, Inst Quim Teor & Computac IQTCUB, c Marti i Franques 1-11, Barcelona 08028, Spain Jo, Wan/AAO-5329-2020; Bokinala, Moses Abraham/T-9727-2018; Tonda, Surendar/AAO-3358-2020; Vidyasagar, Devthade/O-3930-2015 56605563300; 57201674442; 57191525848; 7103322277; 56114866900 wkjo@knu.ac.kr;surendart@knu.ac.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 480 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 7.72 2025-05-07 31 31 Layered double hydroxide; MXene; S-scheme mechanism; CO2 mitigation; Solar fuel production HETEROJUNCTION; EFFICIENT; TI3C2; HYDROGENATION; SEPARATION; TIO2 CO<sub>2</sub> mitigation; Layered double hydroxide; MXene; S-scheme mechanism; Solar fuel production Aluminum compounds; Carbon dioxide; Charge transfer; Hydrogen production; Infrared devices; Light absorption; Nickel compounds; Paramagnetic resonance; Solar fuels; X ray photoelectron spectroscopy; CO 2 mitigation; CO 2 reduction; Fuel production; Layered-double hydroxides; Mxene; Ni-Al layered double hydroxides; Performance; S-scheme mechanism; Solar fuel production; Solar fuels; Titanium dioxide English 2024 2024-01-15 10.1016/j.cej.2023.148227 바로가기 바로가기 바로가기 바로가기
Article Asymmetric lithium supercapacitors with solid-state hybrid electrolytes containing zeolite particle and water-soluble polymer Here we demonstrate that high-performance solid-state hybrid electrolytes are prepared via environment-friendly water-based processes of zeolite Y (Zy) particle, branched-poly(ethylene imine) (bPEI), and lithium hydroxide (LiOH). The hybrid Zy:bPEI:LiOH electrolytes (ZyPL) were successfully applied to fabricate asymmetric-type lithium supercapacitors consisting of graphite-based active electrodes and indium-tin-oxide (ITO) counter electrodes. Results showed that the ion conductivity of electrolytes was greatly dependent on the Zy content and reached the highest value (ca. 0.28 mS/cm) at Zy = 30 wt% due to the formation of interfacial ion transport channels between Zy particles and bPEI chains. The galvanostatic charging/discharging (GCD) test revealed that the ZyPL supercapacitors could deliver the highest potential of 2.28 V at Zy = 30 wt% compared to 1.86 V at Zy = 0 wt%. In particular, the ZyPL supercapacitors, after charging at 0.1 mA/g, exhibited a long-lasting high-potential level of > 1.0 V at Zy = 30 wt% compared to 0.5 V at Zy = 0 wt%. The long-term GCD cycle test disclosed that the ZyPL supercapacitors could work stably with a capacitance retention of 91.7 % even after 3000 cycles. The series connection of six ZyPL supercapacitors delivered ca. 10.94 V with consistent charging/discharging characteristics. Murukadas, Deepu; Lee, Woongki; Kim, Hwajeong; Kim, Youngkyoo Kyungpook Natl Univ, Organ Nanoelect Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Dept Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Energy Convergence & Climate Change, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Global Climate Change & Energy, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, Prior Res Ctr, Daegu 41566, South Korea 58787856000; 59041346100; 15520531700; 10340424400 ykimm@knu.ac.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 499 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 0.28 2025-05-07 2 3 Lithium supercapacitors; Hybrid electrolytes; Zeolite Y; Water-processable; bPEI IONIC LIQUID; POLYURETHANE; COMPOSITES; ELECTRODES; BATTERIES; CATALYSTS; BLEND bPEI; Hybrid electrolytes; Lithium supercapacitors; Water-processable; Zeolite Y Electrolytes; Supercapacitor; Branched-poly(ethylene imine); Charging/discharging; Galvanostatics; High potential; Hybrid electrolytes; Lithium supercapacitor; Poly(ethyleneimine); Processable; Water-processable; Zeolite-Y; Graphite electrodes English 2024 2024-11-01 10.1016/j.cej.2024.155637 바로가기 바로가기 바로가기 바로가기
Review CO2 adsorption using functionalized metal-organic frameworks under low pressure: Contribution of functional groups, excluding amines, to adsorption Selective and effective capture of CO2 from off-gases or even from the atmosphere is very important to prevent global warming. Recently, CO2 adsorption using porous materials has attracted much attention because of its high efficiency and the low corrosiveness of porous adsorbents. Especially, metal-organic frameworks (MOFs, typical porous materials) have been deeply studied for CO2 adsorption because MOFs have strong points like very high porosity, designable structure, and ready modification. Functionalized MOFs have been very useful in CO2 adsorption in increasing the adsorption capacity, selectivity, and heat of adsorption although the porosity could be reduced by loading functional groups (FGs) onto the MOFs. In this review, we analyzed comprehensively the contribution of FGs (excluding the well-known amino group) of MOFs to CO2 adsorption under low pressure. Although there have been a few reports to compare the contribution of some FGs to CO2 adsorption, there are various contradictory results; moreover, to the best of our knowledge, there has been no comprehensive review that analyses the relative contribution of FGs to the adsorption so far. It can be concluded that FGs, especially the ones (such as -OLi, -SO3Li, -NO2, and -SO3H) that can increase the dipole moment of linkers of MOFs, are highly effective in CO2 adsorption mainly because of effective electrostatic interactions. Finally, prospects were given, based on the summary of this review, for future research. Lee, Gyudong; Ahmed, Imteaz; Jhung, Sung Hwa Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea Jhung, Sung/AAO-6683-2021 57200987600; 55377179600; 6701659467 sung@knu.ac.kr; CHEMICAL ENGINEERING JOURNAL CHEM ENG J 1385-8947 1873-3212 481 SCIE ENGINEERING, CHEMICAL;ENGINEERING, ENVIRONMENTAL 2024 13.2 3.0 2.57 2025-05-07 28 29 Adsorption; Carbon dioxide; Functional groups; Mechanism; Metal-organic frameworks ZEOLITIC IMIDAZOLATE FRAMEWORKS; MIXED MATRIX MEMBRANES; CARBON-DIOXIDE CAPTURE; LIGAND FUNCTIONALIZATION; POROUS MATERIALS; GAS-ADSORPTION; SELECTIVE ADSORPTION; FACILE SYNTHESIS; FLUE-GAS; MOFS Adsorption; Carbon dioxide; Functional groups; Mechanism; Metal–organic frameworks Amines; Gas adsorption; Global warming; Lithium compounds; Porosity; Porous materials; Adsorption capacities; Adsorption heats; Adsorption selectivity; Functionalized; High porosity; Higher efficiency; Low pressures; Metalorganic frameworks (MOFs); Off-gases; Porous adsorbent; Carbon dioxide English 2024 2024-02-01 10.1016/j.cej.2023.148440 바로가기 바로가기 바로가기 바로가기
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