2024 연구성과 (14 / 286)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
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 | A Secure Self-Certified Broadcast Authentication Protocol for Intelligent Transportation Systems in UAV-Assisted Mobile Edge Computing Environments | Unmanned Aerial Vehicle(UAV)-assisted mobile edge computing(MEC) ensures continuous MEC services by promptly restoring overloaded or disabled MEC infrastructure. Equipped with sufficient computing resources, UAVs deploy to areas needing MEC, such as task offloading and entertainment services. However, in areas with paralyzed edge nodes, vehicle users are unable to verify the legitimacy of UAVs as they cannot access to the trusted authority(TA). Furthermore, the integrity of UAV-assisted MEC environments can be compromised by malicious attackers, as all network participants rely on wireless communication for their interactions. Many authentication schemes have been proposed for UAV environments. However, these schemes encounter a problem of having to communicate through TA for authentication with vehicle users, which makes them difficult to apply to UAV-assisted MEC environments. Therefore, we propose a new broadcast authentication protocol, which can recover MEC services using MEC-equipped UAVs. The proposed protocol can provide UAVs and vehicle users with high reliability via a self-certified public-key cryptosystem, which can verify the legitimacy of the communication partner without the TA. Moreover, we guarantee the user privacy and preserve sensitive information using biohash technology. We verify the security robustness of the proposed protocol using various simulation tool, informal, and formal analyses. We also estimate the practical deployment of the proposed protocol using "Network Simulator-3". Moreover, we estimate the computation and communication overheads and compare with other existing protocols. The results show that the proposed protocol is feasible and provides users with convenient and seamless intelligent transportation services in UAV-assisted MEC environments. | Kwon, Deokkyu; Son, Seunghwan; Kim, Myeonghyun; Lee, Joonyoung; Das, Ashok Kumar; Park, Youngho | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Elect & Telecommun Res Inst, Daejeon 34129, South Korea; Int Inst Informat Technol, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, India | ; Das, Ashok Kumar/U-2790-2019 | 57221739597; 57221744477; 57210278739; 57203970123; 57217042560; 56962990300 | kdk145@knu.ac.kr;sonshawn@knu.ac.kr;kimmyeong123@knu.ac.kr;harry250@knu.ac.kr;iitkgp.akdas@gmail.com;parkyh@knu.ac.kr; | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS | IEEE T INTELL TRANSP | 1524-9050 | 1558-0016 | 25 | 11 | SCIE | ENGINEERING, CIVIL;ENGINEERING, ELECTRICAL & ELECTRONIC;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 8.4 | 2.5 | 2.43 | 2025-05-07 | 10 | 14 | Protocols; Autonomous aerial vehicles; Security; Authentication; Task analysis; Servers; Real-time systems; Mobile edge computing; mutual authentication; self-certified public key cryptosystem; security analysis; UAV | KEY EXCHANGE; INTERNET; SCHEME; DESIGN | Mobile edge computing; mutual authentication; security analysis; self-certified public key cryptosystem; UAV | Aircraft communication; Authentication; Computation offloading; Mobile edge computing; Unmanned aerial vehicles (UAV); Aerial vehicle; Broadcast authentication; Computing environments; Edge computing; Mutual authentication; Security analysis; Self-certified public key cryptosystems; Trusted authorities; Unmanned aerial vehicle; Vehicle users; Authentication Protocol | English | 2024 | 2024-11 | 10.1109/tits.2024.3428491 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
○ | ○ | Article | Amination and crosslinking of acetone-fractionated hardwood kraft lignin using different amines and aldehydes for sustainable bio-based wood adhesives | Hardwood kraft lignin from the pulping industry is burned or discarded. Its valorization was conducted by subjecting fractionation, amination with ethylenediamine, diethylenetriamine, and monoethanolamine, and crosslinking with formaldehyde or glyoxal to obtain bio-based wood adhesives. Acetone-soluble and insoluble hardwood kraft lignin were prepared and subjected to amination and then crosslinking. Fourier transform infrared, 13C NMR, 15N NMR, and X-ray photoelectron spectroscopy results revealed successful amination with amide, imine, and ether bonds and crosslinking of all samples. Hardwood kraft lignin aminated with diethylenetriamine/ethylenediamine and crosslinked using glyoxal exhibited excellent results in comparison with samples crosslinked using formaldehyde. Acetone-insoluble hardwood kraft lignin aminated and crosslinked using diethylenetriamine and formaldehyde, respectively, exhibited excellent adhesion strength with plywood, satisfying the requirements of the Korean standards. The amination and crosslinking of industrial waste hardwood kraft lignin constitute a beneficial valorization method. | Ghahri, Saman; Park, Byung-Dae | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu 41566, South Korea | ; Ghahri, Saman/J-6213-2019; Park, Byung-Dae/ABB-1934-2020 | 53063443000; 7402834820 | byungdae@knu.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 399 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 2.57 | 2025-05-07 | 13 | 14 | tion exhibited higher shear strength.; Hardwood kraft lignin; Amination; Glyoxal; Crosslinking; Waste biomass utilization | Amination; Crosslinking; Glyoxal; Hardwood kraft lignin; Waste biomass utilization | Adhesives; Amides; Amines; Esca; Formaldehyde; Hardwoods; X Ray Spectroscopy; Acetone; Adhesives; Aldehydes; Amination; Ethylenediamines; Formaldehyde; Glyoxal; Lignin; Polyamines; Wood; Adhesives; Amides; Amines; Formaldehyde; Hardwoods; Lignin; X ray photoelectron spectroscopy; acetone; amide; amine; diethylenetriamine; formaldehyde; glyoxal; imine; adhesive agent; aldehyde; ethylenediamine derivative; formaldehyde; glyoxal; Kraft lignin; lignin; polyamine; Bio-based; Biomass utilization; Crosslinked; Diethylenetriamine; Glyoxal; Hardwood kraft; Hardwood kraft lignin; Kraft lignin; Waste biomass; Waste biomass utilization; acetone; adhesion; comparative study; formaldehyde; fractionation; industrial waste; lignin; valorization; adhesion; amination; Article; biomass; carbon nuclear magnetic resonance; comparative study; controlled study; cross linking; differential scanning calorimetry; elemental analysis; Fourier transform infrared spectroscopy; fractionation; industrial waste; nitrogen nuclear magnetic resonance; pulp mill; solid state; strength; valorization; wood; X ray photoemission spectroscopy; chemistry; wood; Acetone | English | 2024 | 2024-05 | 10.1016/j.biortech.2024.130645 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
○ | ○ | Article | Assessment of deep learning-based auto-contouring on interobserver consistency in target volume and organs-at-risk delineation for breast cancer: Implications for RTQA program in a multi-institutional study | Purpose: To quantify interobserver variation (IOV) in target volume and organs-at-risk (OAR) contouring across 31 institutions in breast cancer cases and to explore the clinical utility of deep learning (DL)-based auto -contouring in reducing potential IOV.Methods and materials: In phase 1, two breast cancer cases were randomly selected and distributed to multiple institutions for contouring six clinical target volumes (CTVs) and eight OAR. In Phase 2, auto-contour sets were generated using a previously published DL Breast segmentation model and were made available for all participants. The difference in IOV of submitted contours in phases 1 and 2 was investigated quantitatively using the Dice similarity coefficient (DSC) and Hausdorff distance (HD). The qualitative analysis involved using contour heat maps to visualize the extent and location of these variations and the required modification.Results: Over 800 pairwise comparisons were analysed for each structure in each case. Quantitative phase 2 metrics showed significant improvement in the mean DSC (from 0.69 to 0.77) and HD (from 34.9 to 17.9 mm). Quantitative analysis showed increased interobserver agreement in phase 2, specifically for CTV structures (5-19 %), leading to fewer manual adjustments. Underlying IOV differences causes were reported using a questionnaire and hierarchical clustering analysis based on the volume of CTVs.Conclusion: DL-based auto-contours improved the contour agreement for OARs and CTVs significantly, both qualitatively and quantitatively, suggesting its potential role in minimizing radiation therapy protocol deviation. | Choi, Min Seo; Chang, Jee Suk; Kim, Kyubo; Kim, Jin Hee; Kim, Tae Hyung; Kim, Sungmin; Cha, Hyejung; Cho, Oyeon; Choi, Jin Hwa; Kim, Myungsoo; Kim, Juree; Kim, Tae Gyu; Yeo, Seung-Gu; Chang, Ah Ram; Ahn, Sung-Ja; Choi, Jinhyun; Kang, Ki Mun; Kwon, Jeanny; Koo, Taeryool; Kim, Mi Young; Choi, Seo Hee; Jeong, Bae Kwon; Jang, Bum-Sup; Jo, In Young; Lee, Hyebin; Kim, Nalee; Park, Hae Jin; Im, Jung Ho; Lee, Sea-Won; Cho, Yeona; Lee, Sun Young; Chang, Ji Hyun; Chun, Jaehee; Lee, Eung Man; Kim, Jin Sung; Shin, Kyung Hwan; Kim, Yong Bae | Yonsei Univ, Coll Med, Dept Radiat Oncol, Seoul, South Korea; Ewha Womans Univ, Coll Med, Dept Radiat Oncol, Seoul, South Korea; Keimyung Univ, Dongsan Med Ctr, Sch Med, Dept Radiat Oncol, Daegu, South Korea; Eulji Univ, Sch Med, Nowon Eulji Med Ctr, Dept Radiat Oncol, Seoul, South Korea; Dong A Univ, Dept Radiat Oncol, Dong A Univ Hosp, Coll Med, Pusan, South Korea; Yonsei Univ, Wonju Coll Med, Dept Radiat Oncol, Wonju, South Korea; Ajou Univ, Sch Med, Dept Radiat Oncol, Suwon, South Korea; Chung Ang Univ Hosp, Dept Radiat Oncol, Seoul, South Korea; Catholic Univ Korea, Incheon St Marys Hosp, Coll Med, Dept Radiat Oncol, Seoul, South Korea; CHA Univ, Ilsan CHA Med Ctr, Dept Radiat Oncol, Sch Med, Goyang, South Korea; Sungkyunkwan Univ, Samsung Changwon Hosp, Dept Radiat Oncol, Sch Med, Chang Won, South Korea; Soonchunhyang Univ, Coll Med, Soonchunhyang Univ Hosp, Dept Radiat Oncol, Bucheon, South Korea; Soonchunhyang Univ, Coll Med, Dept Radiat Oncol, Seoul, South Korea; Chonnam Natl Univ, Med Sch, Dept Radiat Oncol, Gwangju, South Korea; Jeju Univ, Coll Med, Jeju Natl Univ Hosp, Dept Radiat Oncol, Jeju, South Korea; Gyeongsang Natl Univ, Changwon Hosp, Coll Med, Jinju, South Korea; Chungnam Natl Univ, Sch Med, Dept Radiat Oncol, Daejeon, South Korea; Hallym Univ, Sacred Heart Hosp, Coll Med, Dept Radiat Oncol, Anyang, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Dept Radiat Oncol, Daegu, South Korea; Yonsei Univ, Coll Med, Yongin Severance Hosp, Dept Radiat Oncol, Yongin, South Korea; Gyeongsang Natl Univ, Coll Med, Dept Radiat Oncol, Gyeongsang Natl Univ Hosp, Jinju, South Korea; Seoul Natl Univ, Coll Med, Dept Radiat Oncol, Bundang Hosp, Seongnam, South Korea; Soonchunhyang Univ Hosp, Dept Radiat Oncol, Cheonan, South Korea; Sungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Radiat Oncol, Seoul, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Radiat Oncol, Seoul, South Korea; Hanyang Univ, Coll Med, Dept Radiat Oncol, Seoul, South Korea; CHA Univ, Sch Med, CHA Bundang Med Ctr, Dept Radiat Oncol, Seongnam, South Korea; Catholic Univ Korea, Coll Med, Eunpyeong St Marys Hosp, Dept Radiat Oncol, Seoul, South Korea; Yonsei Univ, Coll Med, Gangnam Severance Hosp, Dept Radiat Oncol, Seoul, South Korea; Chonbuk Natl Univ Hosp, Dept Radiat Oncol, Jeonju, South Korea; Seoul Natl Univ, Coll Med, Dept Radiat Oncol, Seoul, South Korea | Kim, Haeyoung/ABC-4815-2020; Chang, Jee Suk/ABU-3301-2022; KIM, Yong/R-3111-2019; KIM, MINJI/IXD-7702-2023; Kim, Nalee/KGK-4760-2024; Kim, Kyubo/R-8061-2019; Kwon, Jeong/Q-3852-2019; Lee, Hye/J-2154-2015; Yeo, Seung-Gu/AGU-7265-2022; Kim, Dae/AAJ-7518-2021; Kang, Kimun/AAA-3684-2022; Kim, Jae-Young/IUO-6466-2023; CHOI, JIN HWA/LWZ-8057-2024; Kim, Tae/AAL-8552-2021; Choi, Seo-hee/AFL-9783-2022; Kim, Jae Joon/F-8620-2011 | 57219537633; 57191191340; 8213302900; 56441016600; 55763792349; 58722779000; 55657730900; 55657921200; 57213021227; 57281961900; 57220096362; 55696487300; 35197696300; 55261333000; 57211944596; 56714062800; 13003101000; 55888496100; 55598457600; 57204652164; 59146484000; 55154552800; 57193517333; 55558794700; 55152366800; 56714463100; 57201025307; 56096038400; 57388293100; 55657616500; 57203597345; 43860954900; 57209361785; 57209366724; 56125422300; 34873643900; 56080532600 | jinsung@yuhs.ac.kr;radiat@snu.ac.kr;jinsung@yuhs.ac; | BREAST | BREAST | 0960-9776 | 1532-3080 | 73 | SCIE | OBSTETRICS & GYNECOLOGY;ONCOLOGY | 2024 | 7.9 | 2.5 | 2.65 | 2025-05-07 | 7 | 6 | RTQA; Inter-observer variation; Auto-contouring; Breast cancer; Deep learning | MODULATED RADIATION-THERAPY; PHASE-3 RANDOMIZED-TRIAL; LYMPH-NODE IRRADIATION; CONSENSUS GUIDELINE; QUALITY-ASSURANCE; RADIOTHERAPY; SEGMENTATION; VARIABILITY; ONCOLOGY; IMPACT | Auto-contouring; Breast cancer; Deep learning; Inter-observer variation; RTQA | Breast; Breast Neoplasms; Deep Learning; Female; Humans; Organs at Risk; Radiotherapy Planning, Computer-Assisted; Article; auto contouring; axillary lymph node; body contouring; breast; breast augmentation; breast cancer; breast computed tomography; breast magnetic resonance imaging; breast reconstruction; cancer grading; clinical assessment; clinical target volume; comparative study; contralateral breast; controlled study; deep learning; Dice similarity coefficient; esophagus; Hausdorff distance; health care utilization; health program; heart; hierarchical clustering; human; human experiment; internal mammary lymph node; interrater reliability; left anterior descending coronary artery; left lung; luminal A breast cancer; mastectomy; observer variation; organs at risk; planning target volume; qualitative analysis; quality control; quantitative analysis; radiation therapy quality assurance; radiotherapy; retrospective study; right lung; spinal cord; statistical parameters; supraclavicular lymph node; thyroid gland; treatment planning; triple negative breast cancer; tumor volume; breast tumor; clinical trial; diagnostic imaging; female; multicenter study; organs at risk; procedures | English | 2024 | 2024-02 | 10.1016/j.breast.2023.103599 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Benefits of fungal-to-bacterial quorum quenching as anti-biofouling strategy in membrane bioreactors for wastewater treatment and water reuse | This study addresses membrane biofouling in membrane bioreactors (MBRs) by exploring fungal-to-bacterial quorum quenching (QQ) strategies. While most research has been focused on bacterial-to-bacterial QQ tactics, this study identified fungal strain Vanrija sp. MS1, which is capable of degrading N-acyl-homoserine lactones (signaling molecules of Gram-negative bacteria). To determine the benefits of fungal over bacterial strains, after immobilization on fluidizing spherical beads in an MBR, MS1 significantly reduced the fouling rate by 1.8-fold compared to control MBR, decreased extracellular polymeric substance levels in the biofilm during MBR operation, and favorably changed microbial community and bacterial network, resulting in biofouling mitigation. It is noteworthy that, unlike Rhodococcus sp. BH4, MS1 enhanced QQ activity when switching from neutral to acidic conditions. These results suggest that MS1 has the potential for the effective treatment of acidic industrial wastewater sources such as semiconductor and secondary battery wastewater using MBRs. | Park, Jeongmi; Park, Hyeyeon; Jang, Jun-U; Kim, Hyunjung; Park, Hyeona; Iqbal, Tahir; Oh, Hyun-Suk; Choo, Kwang-Ho; Lee, Kibaek | Chonnam Natl Univ, Dept Biotechnol & Bioengn, Gwangju 61186, South Korea; Kyungpook Natl Univ, Adv Inst Water Ind, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Pakistan Inst Engn & Appl Sci, Dept Chem Engn, Islamabad 44000, Pakistan; Seoul Natl Univ Sci & Technol, Dept Environm Engn, Seoul 01811, South Korea | Oh, Hyun-Suk/G-4843-2017; Choo, Kwang-Ho/A-3456-2016 | 58116037400; 58116081800; 58116081700; 59284482400; 57213039681; 57202130500; 8212183100; 7102083272; 55845961700 | kibaek@jnu.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 403 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 1.14 | 2025-05-07 | 5 | 5 | Vanrija sp. MS1; Quorum sensing; Biofouling mitigation; QQ fungi; Microbial community | SENSING SIGNAL MOLECULES | Biofouling mitigation; Microbial community; QQ fungi; Quorum sensing; Vanrija sp. MS1 | Bacteria; Biofilms; Biofouling; Bioreactors; Membranes, Artificial; Quorum Sensing; Wastewater; Water Purification; Bacteria; Biodegradation; Biofouling; Biological water treatment; Bioreactors; Industrial water treatment; Quenching; Wastewater reclamation; Wastewater treatment; Water conservation; fungal RNA; n acylhomoserine lactone; RNA 16S; Antibiofouling; Biofouling mitigation; Membrane biofouling; Microbial communities; MS1; Quorum quenching; Quorum quenching fungus; Quorum-sensing; Vanrija sp.; Water reuse; bacterium; biofilm; biofouling; bioreactor; fungus; immobilization; microbial community; wastewater treatment; Article; bacterial strain; controlled study; evaluation study; fouling prevention; fungal strain; fungus; microbial community; nonhuman; quorum quenching; Rhodococcus; Vanrija; waste water management; waste water recycling; artificial membrane; bacterium; biofilm; biofouling; bioreactor; chemistry; metabolism; microbiology; prevention and control; procedures; quorum sensing; wastewater; water management; Fungi | English | 2024 | 2024-07 | 10.1016/j.biortech.2024.130848 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Bioconversion of citrus waste into mucic acid by xylose-fermenting Saccharomyces cerevisiae | Mucic acid holds promise as a platform chemical for bio-based nylon synthesis; however, its biological production encounters challenges including low yield and productivity. In this study, an efficient and high-yield method for mucic acid production was developed by employing genetically engineered Saccharomyces cerevisiae expressing the NAD+-dependent uronate dehydrogenase (udh) gene. To overcome the NAD+ dependency for the conversion of pectin to mucic acid, xylose was utilized as a co-substrate. Through optimization of the udh expression system, the engineered strain achieved a notable output, producing 20 g/L mucic acid with a highest reported productivity of 0.83 g/L-h and a theoretical yield of 0.18 g/g when processing pectin-containing citrus peel waste. These results suggest promising industrial applications for the biological production of mucic acid. Additionally, there is potential to establish a viable bioprocess by harnessing pectin-rich fruit waste alongside xylose-rich cellulosic biomass as raw materials. | Jeong, Deokyeol; Park, Sujeong; Evelina, Grace; Kim, Suhyeung; Park, Heeyoung; Lee, Je Min; Kim, Sun-Ki; Kim, In Jung; Oh, Eun Joong; Kim, Soo Rin | Purdue Univ, Dept Food Sci, W Lafayette, IN 47907 USA; Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Hort Sci, Daegu 41566, South Korea; Chung Ang Univ, Dept Food Sci & Technol, Anseong 17546, South Korea; Gyeongsang Natl Univ, Inst Agr & Life Sci, Dept Food Sci & Technol, Jinju 52828, South Korea; Kyungpook Natl Univ, Res Inst Tailored Food Technol, Daegu 41566, South Korea | Kim, Soo Rin/X-2192-2019; kim, nayoung/IWV-4038-2023; Lee, Je/AAE-7496-2020 | 57191332457; 57218916250; 58758964300; 57860897000; 57211334915; 8885729900; 54679629800; 57195531808; 59716734900; 36659584200 | ejoh@purdue.edu;soorinkim@knu.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 393 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 1.14 | 2025-05-07 | 4 | 4 | Fruit waste; Pectin-rich biomass; meso-galactarate; Microbial bioconversion; Delta-integration strategy; CRISPR/Cas9 | ADIPIC ACID; PECTIN | CRISPR/Cas9; Delta-integration strategy; Fruit waste; meso-galactarate; Microbial bioconversion; Pectin-rich biomass | Citrus; Fermentation; Metabolic Engineering; NAD; Pectins; Saccharomyces cerevisiae; Sugar Acids; Xylose; Citrus fruits; Yeast; chemical compound; mucic acid; nicotinamide adenine dinucleotide; nitrogen; oxidoreductase; pectin; unclassified drug; uronate dehydrogenase; xylose; galactaric acid; nicotinamide adenine dinucleotide; sugar acid; xylose; Biological production; CRISPR/cas9; Delta-integration strategy; Fruit waste; Integration strategy; Meso-galactarate; Microbial bioconversion; Mucic acids; NAD +; Pectin-rich biomass; biological production; biomass; carboxylic acid; fruit; microbial activity; polysaccharide; waste disposal; yeast; Article; biomass; bioprocess; biotransformation; citrus processing waste; codon usage; controlled study; fungal strain; gene dosage; gene expression system; genetic engineering; hydrolysis; nonhuman; process optimization; Saccharomyces cerevisiae; transgenic microorganism; Citrus; fermentation; genetics; metabolic engineering; metabolism; procedures; Bioconversion | English | 2024 | 2024-02 | 10.1016/j.biortech.2023.130158 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Biotechnological valorization of levulinic acid as a non-sugar feedstock: New paradigm in biorefineries | Due to the severe climate crisis, biorefineries have been highlighted as replacements for fossil fuel-derived refineries. In traditional sugar-based biorefineries, levulinic acid (LA) is a byproduct. Nonetheless, in 2002, the US Department of Energy noted that LA is a significant building block obtained from biomass, and the biorefinery paradigm has shifted from being sugar-based to non-sugar-based. Accordingly, LA is of interest in this review since it can be converted into useful precursors and ultimately can broaden the product spectrum toward more valuable products (e.g., fuels, plastics, and pharmaceuticals), thereby enabling the construction of economically viable biorefineries. This study comprehensively reviews LA production techniques utilizing various bioresources. Recent progress in enzymatic and microbial routes for LA valorization and the LA-derived product spectrum and its versatility are discussed. Finally, challenges and future outlooks for LA-based non-sugar biorefineries are suggested. | Kim, Dong Hyun; Cha, Jaehyun; Park, Gwon Woo; Kang, Im Soo; Lee, Eunjin; Jung, Young Hoon; Min, Kyoungseon | Kyuongpook Natl Univ, Dept Integrat Biol, Daegu 41556, South Korea; Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; Korea Inst Energy Res KIER, Gwangju Clean Energy Res Ctr, Gwangju 61003, South Korea; Kyungpook Natl Univ, Res Inst Tailored Food Technol, Daegu 41566, South Korea | Park, Gwon/AAF-7510-2020; Kim, Dong Hyun/LDT-2672-2024; Cha, Jaehyun/MTG-3866-2025 | 55574224522; 57192642830; 57894160800; 59240572400; 59240374600; 59240828700; 35109628300 | dhkim85@knu.ac.kr;min4605@kier.re.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 408 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 0 | 2025-05-07 | 0 | 0 | Levulinic acid (LA); Various bioresources for producing LA; Enzymatic routes for valorizing LA; Metabolic pathways for utilizing LA | GAMMA-VALEROLACTONE; 5-AMINOLEVULINIC ACID; EFFICIENT CONVERSION; SELECTIVE CONVERSION; OXIDATIVE DECARBOXYLATION; LIGNOCELLULOSIC BIOMASS; SUBSTRATE-SPECIFICITY; CATALYTIC CONVERSION; SULFAMIC ACID; IONIC LIQUIDS | Enzymatic routes for valorizing LA; Levulinic acid (LA); Metabolic pathways for utilizing LA; Various bioresources for producing LA | Biofuels; Biomass; Biotechnology; Levulinic Acids; United States; Bioconversion; Fossil fuels; Refining; levulinic acid; plastic; sugar; biofuel; Bioresource; Enzymatic route; Enzymatic route for valorizing levulinic acid; Levulinic acid; Metabolic pathway for utilizing levulinic acid; Metabolic pathways; Various bioresource for producing levulinic acid; biomass; drug; enzyme activity; fossil fuel; organic compound; valorization; biomass; drug analysis; fossil fuel; fuel; review; valorization; biotechnology; metabolism; procedures; Organic acids | English | 2024 | 2024-09 | 10.1016/j.biortech.2024.131178 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Blockchain Assisted Intra-Twin and Inter-Twin Authentication Scheme for Vehicular Digital Twin System | The potency of digital twins to mitigate the shortcomings of traditional mobility systems, such as Vehicular Adhoc Network (VANET) can reconfigure it into an intelligent transportation domain with bolstered processing, storage capabilities and decision-making abilities. The vehicular digital network is emerging as the industrial revolution, where each real-mobile entity (i.e., vehicle) is connected in the virtual environment through their digital replica, known as a digital twin. The real-time data synchronization in the digital twin-centric approach is achieved via an open communication channel. Unfortunately, leveraging the virtual-reality synthesized security perils in the network which consequently obligates rigorous privacy and security countermeasures such as authentication, encryption and signature techniques. In this paper, we have suggested a blockchain-based authentication framework for intra-twin and inter-twin communication in vehicular digital twin networks, and the integrated blockchain in the system assures data compactness and verifiability. The security of the protocol is investigated under the real or random oracle model (ROR) and is confirmed secure with non-mathematical security analysis. Eventually, the operational competences and functionality features are inspected with relevant state-of-the-arts. The findings of study states excel computation and communication overhead of suggested system than others and is seemly for vehicular digital twin network. | Gautam, Deepika; Thakur, Garima; Kumar, Pankaj; Das, Ashok Kumar; Park, Youngho | Cent Univ Himachal Pradesh, Srinivasa Ramanujan Dept Math, Dharamshala 176215, India; Int Inst Informat Technol, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, India; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | Thakur, Garima/GSD-4218-2022; kumar, Pankaj/HPF-8395-2023; Das, Ashok/ADT-4705-2022 | 58599039900; 58127115800; 57207718111; 55450732800; 56962990300 | gautamdeepika1999@gmail.com;garima48451@gmail.com;pkumar240183@gmail.com;iitkgp.akdas@gmail.com;parkyh@knu.ac.kr; | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS | IEEE T INTELL TRANSP | 1524-9050 | 1558-0016 | 25 | 10 | SCIE | ENGINEERING, CIVIL;ENGINEERING, ELECTRICAL & ELECTRONIC;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 8.4 | 2.5 | 3.85 | 2025-04-16 | 9 | 13 | Digital twin; vehicular adhoc network (VANET); blockchain; authentication; security | NETWORKS; SECURITY | authentication; blockchain; Digital twin; security; vehicular adhoc network (VANET) | Blockchain; Cryptography; Decision making; Digital storage; Distributed computer systems; Network security; Vehicular ad hoc networks; Virtual reality; Ad-hoc networks; Authentication scheme; Block-chain; Cloud-computing; Mobility systems; Security; TWIN networks; Vehicular adhoc network; Authentication | English | 2024 | 2024-10 | 10.1109/tits.2024.3394438 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
○ | ○ | Review | Chemicals and fuels from lipid-containing biomass: A comprehensive exploration | In response to address the climate crisis, there has been a growing focus on substituting conventional refineryderived products with those derived from biorefineries. The utilization of lipids as primary materials or intermediates for the synthesis of chemicals and fuels, which are integral to the existing chemical and petrochemical industries, is a key step in this transition. This review provides a comprehensive overview of the production of sustainable chemicals (acids and alcohols), biopolymers, and fuels (including gasoline, kerosene, biodiesel, and heavy fuel oil) from lipids derived from terrestrial and algal biomass. The production of chemicals from lipids involves diverse methods, including polymerization, epoxidation, and separation/purification. Additionally, the transformation of lipids into biofuels can be achieved through processes such as catalytic cracking, hydroprocessing, and transesterification. This review also suggests future research directions that further advance the lipid valorization processes, including enhancement of catalyst durability at harsh conditions, development of deoxygenation process with low H2 consumption, investigation of precise separation of target compounds, increase in lipid accumulation in algal biomass, and development of methods that utilize residues and byproducts generated during lipid extraction and conversion. | Kim, Jung-Hun; Kim, Minyoung; Park, Gyeongnam; Kim, Eunji; Song, Hocheol; Jung, Sungyup; Park, Young-Kwon; Tsang, Yiu Fai; Lee, Jechan; Kwon, Eilhann E. | Hanyang Univ, Dept Earth Resources & Environm Engn, Seoul 04763, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Univ Seoul, Sch Environm Engn, Seoul 02504, South Korea; Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong 999077, Peoples R China; Educ Univ Hong Kong, State Key Lab Marine Pollut, Hong Kong 999077, Peoples R China; Sungkyunkwan Univ, Dept Global Smart City, Suwon 16419, South Korea; Sungkyunkwan Univ, Sch Civil Architectural Engn & Landscape Architect, Suwon 16419, South Korea | Jung, Sungyup/GZG-6207-2022; Tsang, Yiu/AAJ-2524-2020; Kwon, Eilhann/A-1225-2012; Song, Hocheol/ABD-7214-2021; Lee, Jechan/J-1229-2016 | 57204508711; 57193932233; 59141730800; 58929770600; 56562122800; 55073290800; 16029749100; 22954605700; 57188712886; 9240622100 | jechanlee@skku.edu;ek2148@hanyang.ac.kr; | BIOTECHNOLOGY ADVANCES | BIOTECHNOL ADV | 0734-9750 | 1873-1899 | 75 | SCIE | BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 12.5 | 2.5 | 0.38 | 2025-05-07 | 5 | 5 | Sustainability; Carbon neutrality; Circular economy; Biorefinery; Biochemical | WASTE COOKING OIL; FLUID CATALYTIC CRACKING; FATTY-ACIDS MIXTURE; BIODIESEL PRODUCTION; SOYBEAN OIL; VEGETABLE-OILS; JET FUEL; BIO-OIL; PALM OIL; HETEROGENEOUS CATALYSTS | Biochemical; Biorefinery; Carbon neutrality; Circular economy; Sustainability | Biofuels; Biomass; Biotechnology; Catalysis; Lipids; Biomass; Biopolymers; Catalytic cracking; Lipids; Petroleum prospecting; Petroleum refining; biofuel; lipid; Algal biomass; Biochemical; Biorefineries; Carbon neutralities; Circular economy; Conventional refinery; Derived products; Heavy Fuel-Oil; Petrochemical industry; Primary materials; catalyst; climate change; durability; exploration; extraction method; separation; valorization; biomass; biotechnology; catalysis; chemistry; procedures; Carbon | English | 2024 | 2024-10 | 10.1016/j.biotechadv.2024.108418 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Crosslinking reactions of a model aminated lignin compound as a platform for building thermosetting polymers for lignin-based bio adhesives | As millions of tons of kraft lignin are being wasted, a potential application is to use its crosslinking reactions to build thermosetting bio adhesives. However, the crosslinking reactions between lignin molecules are not fully understood. The present study aims to elucidate the crosslinking reactions of the model lignin compound guaiacylglycerol-beta-guaiacyl ether (GGE) via one-step hydroxymethylation/ amination with formaldehyde and diethylenetriamine (DETAM), or one-step glyoxylation/ amination with glyoxal and DETAM via liquid NMR techniques such as H-1 NMR, C-13 NMR, 2D H-1-C-13, and H-1-N-15 HSQC NMR. Specifically, the 2D H-1-C-13 HSQC NMR spectra confirm the presence of -CH2-NH- with a chemical shift of H-1 2.6-3.6/C-13 40-60 ppm, and the formation of methylene linkages via the crosslinking reaction. Also, the 2D H-1-N-15 HSQC NMR spectra clearly detect the formation of amide and imine bonds at H-1 7.8/N-15 110 and H-1 8.07/N-15 121.5 ppm from the crosslinked GGE. | Ghahri, Saman; Wibowo, Eko Setio; Park, Byung-Dae | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu 41566, South Korea | Ghahri, Saman/J-6213-2019; Wibowo, Eko/AAL-5888-2021; Park, Byung-Dae/ABB-1934-2020 | 53063443000; 57214910272; 7402834820 | byungdae@knu.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 413 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 1.43 | 2025-05-07 | 5 | 7 | Lignin valorization; Crosslinking reactions; Amination; Bio-adhesives; Sustainable materials | Amination; Bio-adhesives; Crosslinking reactions; Lignin valorization; Sustainable materials | Adhesives; Amides; Amination; Chlorine Compounds; Formation; Lignins; Nuclear Magnetic Resonance; Spectra; Adhesives; Amination; Cross-Linking Reagents; Lignin; Magnetic Resonance Spectroscopy; Polymers; Temperature; Amides; Amination; Chlorine compounds; adhesive agent; amide; bio adhesive; carbene; carbon; diethylenetriamine; ether derivative; formaldehyde; glyoxal; guaiacylglycerol beta guaiacyl ether; hydrogen; imine; lignin; nitrogen; nitrogen 15; polymer; unclassified drug; cross linking reagent; polymer; Bio adhesives; Crosslinking reaction; Diethylenetriamine; Guaiacyl; HSQC NMR; Lignin compounds; Lignin valorization; NMR spectrum; Sustainable materials; Valorisation; formaldehyde; lignin; reaction kinetics; sustainability; valorization; amination; Article; carbon nuclear magnetic resonance; chemical bond; chemical phenomena; chemical reaction; chemical structure; comparative study; controlled study; cross linking; glyoxylation; heteronuclear single quantum coherence; hydroxymethylation; methylation; nuclear magnetic resonance spectroscopy; proton nuclear magnetic resonance; reaction analysis; amination; chemistry; temperature; Crosslinking | English | 2024 | 2024-12 | 10.1016/j.biortech.2024.131500 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
○ | ○ | Article | Design of Blockchain-Based Multi-Domain Authentication Protocol for Secure EV Charging Services in V2G Environments | Multi-domain vehicle to grid (V2G) is a network environment in which numerous service providers offer charging and discharging services to EV users. This can enhance energy management and traffic flow for efficient intelligent transportation systems (ITS). However, the combination of multiple domains can suffer from various security vulnerabilities, highlighting the need for robust countermeasures. Moreover, existing multi-domain V2G protocols utilized a central trusted authority (TA) which can create a single point of failure (SPOF), or required high computational resources. In this paper, we propose a multi-domain authentication protocol for secure and efficient V2G services using consortium blockchain. The proposed protocol provides lightweight intra-domain authentication using hash functions and XOR operators. Furthermore, the proposed protocol ensures secure cross-domain authentication by integrating elliptic curve cryptography (ECC) and physical unclonable function (PUF). Therefore, the proposed protocol can establish trust, enable efficient communications, and prevent congestion at charging stations. To validate security robustness, comprehensive evaluations are conducted using "Real-Or-Random (ROR) model", "Scyther tool", and informal analyses. Comparative computational overheads of the proposed and related protocols are measured using "Multiprecision Integer and Rational Arithmetic Cryptographic Library (MIRACL)" testbed experiments. Additionally, a simulation of the practical deployment is conducted using "Network Simulator-3 (NS-3)". Results indicate that the proposed protocol can improve ITS by providing secure and efficient services for multi-domain V2G environments. | Kwon, DeokKyu; Son, Seunghwan; Park, Kisung; Das, Ashok Kumar; Park, Youngho | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Gachon Univ, Dept Comp Engn Smart Secur, Seongnam 13120, South Korea; Int Inst Informat Technol Hyderabad, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, Telangana, India | Park, Kisung/KIG-3849-2024; Das, Ashok/ADT-4705-2022 | 57221739597; 57221744477; 57194833768; 55450732800; 56962990300 | kdk145@knu.ac.kr;sonshawn@knu.ac.kr;kisung@gachon.ac.kr;iitkgp.akdas@gmail.com;parkyh@knu.ac.kr; | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS | IEEE T INTELL TRANSP | 1524-9050 | 1558-0016 | 25 | 12 | SCIE | ENGINEERING, CIVIL;ENGINEERING, ELECTRICAL & ELECTRONIC;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 8.4 | 2.5 | 0.7 | 2025-05-07 | 3 | 5 | Electric vehicle; multi-domain; mutual authentication; security; vehicle to grid | ELECTRIC VEHICLES; SCHEME | Electric vehicle; multi-domain; mutual authentication; security; vehicle to grid | Authentication; Blockchain; Cryptography; Rational functions; Traffic congestion; Authentication protocols; Block-chain; EV Charging; Intelligent transportation systems; Multi-domains; Mutual authentication; Protocol cans; Security; Vehicle to Grid (V2G); Vehicle to grids; Vehicle-to-grid | English | 2024 | 2024-12 | 10.1109/tits.2024.3472013 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
○ | ○ | Article | Differential Image-Based Scalable YOLOv7-Tiny Implementation for Clustered Embedded Systems | Convolutional neural networks (CNNs) for powerful visual image analysis are gaining popularity in artificial intelligence. The main difference in CNNs compared to other artificial neural networks is that many convolutional layers are added, which improve the performance of visual image analysis by extracting the feature maps required for image classification. However, algorithm optimization is required to run applications that require low-latency in edge compute modules with limited processing resources. In this paper, we propose a novel algorithm optimization method for fast CNNs by using continuous differential images. The main idea is to reduce computation variably by using the differential value of the input in each convolutional layer. Also, the proposed method is compatible with all types of CNNs, and the performance is better when the pixel value difference of continuous images is low. We use the DarkNet framework to evaluate our algorithm using fast convolution and half convolution approaches on a clustered system. As a result, when the input frame rate is 10 fps, FLOPs are reduced by about 4.92 times compared to the original YOLOv7-tiny. By reducing the FLOPs of the convolutional layer, the inference speed increases to about 4.86 FPS, performing 1.57 times faster than the original YOLOv7-tiny. In the case of parallel processing that used two edge compute modules for using half convolution approach, FLOPs reduced more, and the response speed improved. In addition, faster Object detection implementation is possible by additionally expanding up to 7 compute modules in a scalable clustered embedded system as much as the user wants. | Hong, Sunghoon; Park, Daejin | Kyungpook Natl Univ, Dept Elect & Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | 55726350900; 55463943600 | boltanut@knu.ac.kr; | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS | IEEE T INTELL TRANSP | 1524-9050 | 1558-0016 | 25 | 11 | SCIE | ENGINEERING, CIVIL;ENGINEERING, ELECTRICAL & ELECTRONIC;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 8.4 | 2.5 | 0 | 2025-05-07 | 0 | 0 | Detectors; Convolution; Accuracy; Computational complexity; Real-time systems; Feature extraction; Convolutional neural networks; Classification algorithms; Graphics processing units; Embedded systems; clustered systems; deep learning; fast convolution | clustered systems; Convolutional neural networks; deep learning; fast convolution | Convolution; Federated learning; Image analysis; Image enhancement; Clustered systems; Convolutional neural network; Deep learning; Differential image; Embedded-system; Fast convolution; Image analyze; Image-analysis; Performance; Visual image; Convolutional neural networks | English | 2024 | 2024-11 | 10.1109/tits.2024.3419095 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
○ | ○ | Article | Direct conversion of apricot seeds into biodiesel | Using edible lipids for biodiesel production has been criticized, causing biodiesel production from inedible food resources to be desirable. Lipid extraction must be prioritized to produce biodiesel using an acid/base-catalyzed transesterification process, but this conversion process suffers from technical reliability. Therefore, this study introduced non-catalytic conversion of oil-bearing biomass into biodiesel. Apricot seeds were used as a model compound (oil content 44.3 wt%). The non-catalytic transesterification of apricot seed oil recovered 98.28 wt% biodiesel at 360 C-degrees for 1 min, while alkali-catalysis of apricot seed oil recovered 91.84 wt% at 63 C for 60 min. The direct conversion of apricot seeds into biodiesel was attempted. The trends in the yields of biodiesel from apricot seeds and seed oil obtained by non-catalytic transesterification as a function of reaction temperature were similar. The yield of biodiesel from apricot seed was 43.06 wt%, suggesting that 97.20 wt% of lipids were converted into biodiesel. | Kim, Minyoung; Choi, Dongho; Kim, Jee Young; Jung, Sungyup; Tsang, Yiu Fai; Lin, Kun-Yi Andrew; Kwon, Eilhann E. | Hanyang Univ, Dept Earth Resources & Environm Engn, Seoul 04763, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong 999077, Peoples R China; Educ Univ Hong Kong, State Key Lab Marine Pollut, Tai Po, Hong Kong 999077, Peoples R China; Natl Tsing Hua Univ, Inst Analyt & Environm Sci, Hsinchu, Taiwan; Natl Chung Hsing Univ, Dept Environm Engn, Taichung 402, Taiwan; Natl Chung Hsing Univ, Innovat & Dev Ctr Sustainable Agr, Taichung 402, Taiwan | ; Tsang, Yiu/AAJ-2524-2020; Kwon, Eilhann/AGY-3339-2022; Choi, Dongho/LTY-8225-2024; Kim, Jee Young/LKL-4818-2024 | 57193932233; 57200013497; 57191420766; 55073290800; 22954605700; 44961317800; 9240622100 | ek2148@hanyang.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 395 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 2.85 | 2025-05-07 | 9 | 10 | Carbon neutrality; Waste valorization; Renewable energy; Biofuel; Biodiesel | BIOMASS; PYROLYSIS | Biodiesel; Biofuel; Carbon neutrality; Renewable energy; Waste valorization | Biofuels; Catalysis; Esterification; Fatty Acids; Plant Oils; Prunus armeniaca; Reproducibility of Results; Seeds; biofuel; fatty acid; vegetable oil; apricot; catalysis; esterification; plant seed; reproducibility | English | 2024 | 2024-03 | 10.1016/j.biortech.2024.130339 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | ○ | Article | Fed-batch treatment attenuates diffusional limitation while preparing high solid microfibrillated cellulose from Gelidium amansii | This study investigates the effects of fed-batch treatment on the fibrillation degree and properties of Gelidium amansii-derived microfibrillated cellulose (MFC). Fed-batch milling was conducted with the initial solid loading of 1 % w/v followed by three stages of feeding to obtain a final solid concentration of 5 % w/v. This process provides a high-solid MFC of around 10 %, while batch milling only provides the maximum solid loading of 4 %. It also reduces approximately 83 % power consumption of batch milling at the same solid loading (4 %). The obtained MFC 5 % has lower fibrils length (14.9 mu m) and width (16.46 nm), but higher consistency index (>250 Pa.s) than MFC 1 % (22 mu m, 21 nm, 5.88 Pa.s). The crystallinity and maximum decomposition temperatures of both MFCs are comparable, varying at 49-53 % and 318 C-degrees-320 C-degrees. In summary, fed-batch treatment is promising for the techno-economic development of MFC production by lowering energy and maintaining product quality. | Istianah, Nur; Kang, Hye Jee; Yuwono, Sudarminto Setyo; Suhartini, Sri; Jung, Young Hoon | Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; Univ Brawijaya, Dept Food Sci & Biotechnol, Malang 65145, Indonesia; Univ Brawijaya, Dept Agroind Technol, Malang 65145, Indonesia; Univ Brawijaya, Fac Agr Technol, Ctr Excellence Bioenergy & Biorefinery, Malang 65145, Indonesia | Setyo Yuwono, Sudarminto/JLM-5748-2023; Istianah, Nur/MAH-5134-2025; Suhartini, Sri/AAC-3161-2021; Jung, Young/F-1703-2013 | 56664484400; 57219656318; 55934097100; 43462070300; 55550063700 | n.istianah@ub.ac.id;hyejee@knu.ac.kr;sdmintos@ub.ac.id;ssuhartini@ub.ac.id;younghoonjung@knu.ac.kr; | BIORESOURCE TECHNOLOGY | BIORESOURCE TECHNOL | 0960-8524 | 1873-2976 | 397 | SCIE | AGRICULTURAL ENGINEERING;ENERGY & FUELS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 9 | 2.5 | 2 | 2025-05-07 | 7 | 7 | Nanocellulose; Red agar; Process optimization; Semicontinuous milling; Power consumption | Nanocellulose; Power consumption; Process optimization; Red agar; Semicontinuous milling | Cellulose; Crystallinity; Fibrillation; Loading; Machining; Optimization; Processing; Solids; Cellulose; Edible Seaweeds; Gelidium; Rhodophyta; Temperature; Crystallinity; Electric power utilization; Loading; Nanocellulose; Optimization; agar; cellulose; cellulose nanocrystal; cellulose nanofiber; microcrystalline cellulose; nanocellulose; Fed batches; Gelidium amansii; High-solids; Nano-cellulose; Process optimisation; Property; Red agar; Semi-continuous; Semicontinuous milling; Solid loading; cellulose; crystallinity; decomposition analysis; Article; batch process; biomass; chemical structure; controlled study; decomposition; dry weight; economic development; energy transfer; fed batch fermentation; fibril; Fourier transform infrared spectroscopy; Gelidium amansii; hydrogen bond; nonhuman; particle size; process optimization; scanning electron microscopy; sedimentation; shear rate; shear stress; solid; surface property; thermal analysis; thermostability; Gelidium; red alga; temperature; Milling (machining) | English | 2024 | 2024-04 | 10.1016/j.biortech.2024.130471 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
○ | ○ | Article | Hybrid behaviors of RC metaslab combining bandgap and isolation for broadband vibration control | In this study, a novel method is introduced, integrating the principles of the local resonance bandgap (LRBG) with vibration isolation techniques to achieve broadband flexural vibration control in plate structures. This methodology employs locally resonant metamaterial units incorporated into a reinforced concrete (RC) slab, making it suitable for real -world engineering applications. Concurrently, the construction specifics associated with this methodology are elucidated. The mechanisms behind LRBG and vibration isolation within the metaslab were examined using numerical analyses. From these analyses, the frequency range conducive for broadband flexural vibration control was estimated, factoring in both material properties and geometric dimensions. Experimental results on a full-scale RC metaslab, measuring 4,200 x 3,000 x 210 mm, validate that the fabricated metaslab introduces a broadband vibration control region attributed to both the LRBG and vibration isolation phenomena. These findings closely align with the numerical estimations. All bending modal responses inherent in the unmodified RC slab were encompassed within this broadband frequency range. Furthermore, the maximal and initial four modal responses of the RC metaslab were attenuated by up to 81.19 %, 99.57 %, 99.94 %, 99.71 %, and 99.79 %, respectively. | Choi, Jewoo; Hong, Taehoon; Lee, Dong-Eun; Cho, Tongjun; Park, Hyo Seon | Yonsei Univ, Dept Architectural Engn, Seoul 120749, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy, Daegu 41566, South Korea; Yonsei Univ, Engn Res Ctr, Seoul 120749, South Korea | ; Choi, Jewoo/MGT-4857-2025 | 57205453819; 57969349700; 56605563300; 56438830700; 55669886900 | tjcho@yonsei.ac.kr;hspark@yonsei.ac.kr; | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | INT J MECH SCI | 0020-7403 | 1879-2162 | 267 | SCIE | ENGINEERING, MECHANICAL;MECHANICS | 2024 | 9.4 | 2.5 | 2.75 | 2025-05-07 | 8 | 9 | Composite plate; Reinforced concrete slab; Broadband vibration control; Locally resonant metamaterial; Local resonance bandgap; Vibration isolation | ELASTIC-WAVE ABSORPTION; METAMATERIAL PLATES; FAILURE MODES; SHEAR; DESIGN; MITIGATION; SLABS; GAPS | Broadband vibration control; Composite plate; Local resonance bandgap; Locally resonant metamaterial; Reinforced concrete slab; Vibration isolation | Concrete slabs; Metamaterials; Plates (structural components); Reinforced concrete; Vibration analysis; Vibration control; Broadband vibration; Broadband vibration control; Composite plates; Flexural vibrations; Frequency ranges; Local resonance; Local resonance bandgap; Locally resonant metamaterial; Reinforced concrete slabs; Vibration isolations; Energy gap | English | 2024 | 2024-04-01 | 10.1016/j.ijmecsci.2024.109004 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
○ | Article | In Situ Polymerization of Cross-Linked Perovskite–Polymer Composites for Highly Stable and Efficient Perovskite Solar Cells | Mixed-halide perovskites have emerged as outstanding light absorbers that enable the fabrication of efficient solar cells; however, their instability hinders the commercialization of such systems. Grain-boundary (GB) defects and lattice tensile strain are critical intrinsic-instability factors in polycrystalline perovskite films. In this study, the light-induced cross-linking of acrylamide (Am) monomers with non-crystalline perovskite films is used to fabricate highly efficient and stable perovskite solar cells (PSCs). The Am monomers induce the preferred crystal orientation in the polycrystalline perovskite films, enlarge the perovskite grain size, and cross-link the perovskite grains. Additionally, the liquid properties of Am effectively releases lattice strain during perovskite-film crystallization. The cross-linked interfacial layer functions as an airtight wall that protects the perovskite film from water corrosion. Devices fabricated using the proposed strategy show an excellent power conversion efficiency (PCE) of 24.45% with an open-circuit voltage (VOC) of 1.199 V, which, to date, is the highest VOC reported for hybrid PSCs with electron transport layers (ETLs) comprised of TiO2. Large-area PSC modules fabricated using the proposed strategy show a power conversion efficiency of 20.31% (with a high fill factor of 77.1%) over an active area of 33 cm2, with excellent storage stability. © 2023 Wiley-VCH GmbH. | Guo, He; Yoon, Geon Woo; Li, Zi Jia; Yun, Yeonghun; Lee, Sangwook; Seo, You-Hyun; Jeon, Nam Joong; Han, Gill Sang; Jung, Hyun Suk | School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea; Chint New Energy R&D Center, Frontier Technology Dept, Zhejiang Province, Haining City, 314415, China; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, South Korea; Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, South Korea; Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, South Korea; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea, SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, South Korea | 57327683000; 57852117700; 57204504481; 57202548363; 57203597324; 56473210700; 55855523800; 36463511300; 9432551800 | hsjung1@skku.edu;gshan@krict.re.kr; | Advanced Energy Materials | ADV ENERGY MATER | 1614-6832 | 1614-6840 | 14 | 1 | SCIE | CHEMISTRY, PHYSICAL;ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 26 | 2.5 | 6.23 | 2025-05-07 | 28 | acrylamide; cross-linking; perovskite solar cells | Amides; Conversion efficiency; Crosslinking; Fabrication; Grain boundaries; Open circuit voltage; Perovskite; Solar power generation; Tensile strain; Titanium dioxide; Acrylamide monomers; Acrylamides; Cross linking; Highly stables; In-situ polymerization; Perovskite films; Perovskite grains; Polycrystalline perovskite; Polymer composite; Power conversion efficiencies; Perovskite solar cells | English | Final | 2024 | 10.1002/aenm.202302743 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: