연구성과로 돌아가기
2020 연구성과 (123 / 270)
※ 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 | Three-Dimensional Dual-Band Dielectric Resonator Antenna for Wireless Communication | A three-dimensional dual-band dielectric resonator antenna, comprised of five rectangular dielectric resonator (RDR) radiating elements, is proposed for wireless communication applications. The presented multiple-input-multiple-output (MIMO)/diversity antenna system use TE1 delta 1Y and HEM2 delta 1 modes of the RDR antenna for the transmission/reception of data. The TE1 delta 1Y mode covers the frequency range from 3.3 to 3.8 GHz, coveringWi-MAX, sub-6 GHz, and LTE (3.41-3.5 GHz uplink/3.51-3.6 GHz downlink) 5G application bands. The HEM2 delta 1 mode covers Wi-Fi (5.725-5.875 GHz) and ITS 5.9 GHz (5.875-5.925 GHz) bands. The five RDR antenna elements are excited through coaxial feeds and are arranged in a cubical fashion to cover all directions, except -Z direction. The RDR elements are oriented and positioned to achieve a minimum correlation between the radiating elements. The proposed antenna exhibits a gain of 7 dB in the lower band while 7.2 dB gain is obtained in the upper band. | Mishra, Shailesh; Das, Sushrut; Pattnaik, Shyam Sundar; Kumar, Sachin; Kanaujia, Binod Kumar | Indian Inst Technol, Dept Elect Engn, Indian Sch Mines, Dhanbad 826004, Bihar, India; Natl Inst Tech Teachers Training & Res, Dept ETV, Chandigarh 160019, India; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Jawaharlal Nehru Univ, Sch Computat & Integrat Sci, New Delhi 110067, India | Kanaujia, Binod/L-6484-2019; pattnaik, shyam/AAR-4389-2020; Kumar, Sachin/W-2211-2019; kanaujia, Binod/L-6484-2019; Das, sushrut/V-9116-2019; Mishra, Shailesh/LQJ-6460-2024 | 57213026346; 55834414200; 7006422314; 56907994000; 56962785800 | mishrashail1@gmail.com; | IEEE ACCESS | IEEE ACCESS | 2169-3536 | 8 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS | 2020 | 3.367 | 34.3 | 0.58 | 2025-06-25 | 11 | 12 | MIMO communication; Dielectric resonator antennas; Antenna radiation patterns; Resonant frequency; Feeds; Antenna measurements; DRA; isolation; MIMO; pattern diversity | PERTURBATION; DESIGN; GUIDE; CUBE | DRA; isolation; MIMO; pattern diversity | 5G mobile communication systems; Dielectric resonators; Microwave filters; MIMO systems; Antenna element; Antenna system; Dielectric resonator antennas; Frequency ranges; Radiating elements; Rectangular dielectric resonators; Wireless communication applications; Wireless communications; Microwave antennas | English | 2020 | 2020 | 10.1109/access.2020.2987950 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Trajectory Optimization and Replanning Framework for a Micro Air Vehicle in Cluttered Environments | In the present study, we propose a trajectory optimization and replanning algorithm for micro air vehicles (MAVs) in cluttered environments. To generate the path of an MAV in a cluttered environment, we first design an offline global path optimization algorithm. This algorithm generates a global trajectory for safe aerial delivery; this trajectory enables an MAV to avoid static obstacles marked in the navigation map and satisfies the MAV's initial and arrival velocities. The MAV's trajectory is replanned by exploiting dynamic movement primitives (DMPs) and a time adjustment algorithm to enable computationally efficient unknown obstacle avoidance in local path planning. To validate the applicability of the proposed algorithm, we compare simulation results with those obtained using an existing approach based on DMPs. Furthermore, an autonomous flight is demonstrated in an outdoor environment using a custom-made MAV driven by the proposed approach. | Lee, Hyeonbeom; Seo, Hoseong; Kim, Hyeong-Geun | Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 08826, South Korea; Incheon Natl Univ, Sch Mech Engn, Incheon 22012, South Korea | 55556473400; 56742664000; 56029058100 | hgkim@inu.ac.kr; | IEEE ACCESS | IEEE ACCESS | 2169-3536 | 8 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS | 2020 | 3.367 | 34.3 | 0.99 | 2025-06-25 | 13 | 15 | Unmanned aerial vehicles; Heuristic algorithms; Trajectory optimization; Planning; Three-dimensional displays; Obstacle avoidance; trajectory optimization; MAV; DMPs; local path planning | DMPs; local path planning; MAV; Obstacle avoidance; trajectory optimization | Aerodynamics; Air navigation; Antennas; Trajectories; Cluttered environments; Computationally efficient; Dynamic movement primitives; Global trajectories; Outdoor environment; Replanning algorithm; Time adjustment algorithms; Trajectory optimization; Micro air vehicle (MAV) | English | 2020 | 2020 | 10.1109/access.2020.3011401 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Vision-Inspection-Synchronized Dual Optical Coherence Tomography for High-Resolution Real-Time Multidimensional Defect Tracking in Optical Thin Film Industry | Large-scale product inspection is an important aspect in thin film industry to identify defects with a high precision. Although vision line scan camera (VLSC)-based inspection has been frequently implemented, it is limited to surface inspections. Therefore, to overcome the conventional drawbacks, there is a need to extend inspection capabilities to internal structures. Considering that VLSC systems have access to rich information, such as color and texture, high-resolution real-time multimodal optical synchronization between VLSC and dual spectral domain optical coherence tomography (SD-OCT) systems was developed with a laboratory customized in-built automated defect-tracking algorithm for optical thin films (OTFs). Distinguishable differences in the color and texture of the bezel area were precisely determined by the VLSC. Detailed OCT assessments were conducted to verify the detection of previously unobtainable border regions and micrometer-range sub-surface defects. To enhance the accuracy of the method, VLSC images were aided for the precise surface defect identification using OCT and the image acquisition, signal processing, image analysis, and classification of both techniques were simultaneously processed in real-time for industrial applicability. The results demonstrate that the proposed method is capable of detecting and enumerating total number of defects in OTF samples with exceptional resolution and in a cost-effective manner facilitating wide area inspection for OTF samples. | Jeon, Deokmin; Jung, Unsang; Park, Kibeom; Kim, Pilun; Han, Sangyeob; Jeong, Hyosang; Wijesinghe, Ruchire Eranga; Ravichandran, Naresh Kumar; Lee, Jaeyul; Han, Youngmin; Jeon, Mansik; Kim, Jeehyun | Kyungpook Natl Univ, Coll IT Engn, Sch Elect & Elect Engn, Daegu 41566, South Korea; Gumi Elect & Informat Technol Res Inst GERI, ICT Convergence Res Div, Digital Healthcare Res Ctr, Gumi 39253, South Korea; Ulsan Natl Inst Sci & Technol UNIST, Dept Biomed Engn, Ulsan 44919, South Korea; Kyungpook Natl Univ, Inst Biomed Engn Res, Daegu 41944, South Korea; Kyungil Univ, Coll Engn, Dept Biomed Engn, Gyongsan 38428, South Korea; Korea Basic Sci Inst, Ctr Sci Instrumentat, Daejeon 34133, South Korea; Kyungil Univ, Dept Nucl Energy Convergence, Gyongsan 38428, South Korea; Kyungil Univ, Coll Smart Engn, Dept Autonomous Robot Engn, Gyongsan 38428, South Korea | Kim, Jinhyun/AAK-3695-2020; RAVICHANDRAN, NARESH KUMAR/D-2190-2017; Lee, Junsoo/IUO-9627-2023; Wijesinghe, Ruchire/K-3797-2016 | 57204570554; 25421786500; 56017776400; 56967482800; 57193695305; 37561503300; 56018152300; 57125825900; 57188689420; 57193700012; 24171094000; 7601373350 | msjeon@knu.ac.kr; | IEEE ACCESS | IEEE ACCESS | 2169-3536 | 8 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS | 2020 | 3.367 | 34.3 | 0.49 | 2025-06-25 | 8 | 9 | Inspection; Graphics processing units; Real-time systems; Synchronization; Signal processing algorithms; Imaging; Feature extraction; Automatic optical inspection; machine vision; optical coherence tomography; optical films; parallel processing | SWEPT-SOURCE; GLASS; MICROSCOPY | Automatic optical inspection; Machine vision; Optical coherence tomography; Opticalfilms; Parallel processing | Coherent light; Cost effectiveness; Entertainment industry; Image enhancement; Inspection; Optical transfer function; Real time systems; Surface defects; Textures; Tomography; Color and textures; Defect identification; Internal structure; Large-scale products; Optical synchronization; Optical thin films; Spectral domain optical coherence tomographies; Surface inspection; Optical tomography | English | 2020 | 2020 | 10.1109/access.2020.3031361 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Review | Can Therapeutic Exercise Slow Down Progressive Functional Decline in Patients With Amyotrophic Lateral Sclerosis? A Meta-Analysis | Background:Despite the high incidence of muscle weakness in patients with amyotrophic lateral sclerosis (ALS), the effects of therapeutic exercise on these individuals have not been clearly determined. Methods:A comprehensive database search was conducted on PubMed, Embase, Cochrane Library, and SCOPUS. We included studies published up to December 31, 2019 that fulfilled our inclusion and exclusion criteria. Functional status was determined as the Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS) score (previous and revised versions) before and after a therapeutic exercise program for the meta-analysis. The Cochrane Collaboration's tool for assessing risk of bias in randomized trials was used for the methodological quality assessments of included studies. The meta-analysis was performed using the RevMan v.5.3. Results:A total of 94 patients in the experimental group (who received therapeutic exercise) and 159 patients in the control group (who received conventional exercise or therapy) were included from five randomized controlled trials. The decrement of ALSFRS (previous version), ALSFRS-R (revised version), and ALSFRS-R-Respiratory scores at the 6-month evaluation were less for the therapeutic exercise group as compared to the control group. However, at the 6-month evaluation, the ALSFRS-R-Limb scores did not significantly differ between the two groups. Conclusions:Therapeutic exercise appears beneficial for patients with ALS. Further, it appears to exert more of a cardiopulmonary benefit, as opposed to preventing the progression of limb weakness. However, as the therapeutic exercises applied in each included study were not uniform, the result of our meta-analysis should be considered cautiously. | Park, Donghwi; Kwak, Sang Gyu; Park, Jin-Sung; Choo, Yoo Jin; Chang, Min Cheol | Univ Ulsan, Ulsan Univ Hosp, Dept Phys Med & Rehabil, Coll Med, Ulsan, South Korea; Catholic Univ Daegu, Dept Med Stat, Coll Med, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Yeoungnam Univ, Dept Rehabil Med, Coll Med, Daegu, South Korea | ; Chang, Min Cheol/AAE-2321-2022; Kwak, Sang Gyu/AAG-4341-2021; Park, Donghwi/GYQ-6185-2022 | 56606561400; 56645812600; 44061744500; 57215041542; 23767019400 | wheel633@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.48 | 2025-06-25 | 13 | 14 | amyotrophic lateral sclerosis; therapeutic exercise; conventional exercise; motor function; respiratory function; meta-analysis | PHYSICAL-THERAPY; INDIVIDUALS; DIAGNOSIS; DISEASE | amyotrophic lateral sclerosis; conventional exercise; meta-analysis; motor function; respiratory function; therapeutic exercise | amyotrophic lateral sclerosis; Amyotrophic Lateral Sclerosis Functional Rating Scale; cardiopulmonary function; clinical effectiveness; comparative effectiveness; exercise intensity; functional status; human; intermethod comparison; kinesiotherapy; meta analysis; motor performance; muscle weakness; randomized controlled trial (topic); respiratory function; Review; scoring system; systematic review; therapy effect; treatment outcome | English | 2020 | 2020-08-13 | 10.3389/fneur.2020.00853 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Development of WO3-Gd2O3- B2O3 high density glasses doped with Dy³⁺ for photonics and scintillation materials application | The Dy3+ ions doped tungsten gadolinium borate (Dy-WGdB) glasses were synthesis by the melt-quenching technique with various Dy2O3 concentrations. The physics, optical and several types of luminescence properties in the Dy-WGdB glass samples were researched. Glass densities (similar to 6.0 g/cm(3)) indicates that the compaction of glass is high and rise with an increment of Dy2O3 concentrations. The Dy-WGdB glass samples absorb photons in visible light (VIS) and near-infrared (NIR) region from the absorption spectra. For photo-, radio- and proton luminescence, the highest emission was observed at 575 nm, corresponding to Dy3+ transition F-4(9/2) -> H-6(13/2). The maximum concentration of Dy2O3 doped in the WGdB glass is 1.0 mol%, which has achieved the highest emission intensity in all three types of luminescence. For 1.0 mol% doped glass, the decay times under pulse X-ray excitation was measured and found to be 0.216 ms. The temperature dependent luminescence spectra of the 1.0% doped glass in a temperature range, 10 K-300 K was measured and found the thermal quenching. In this research, under the photo, X-ray and proton excitation, the WGdB glass doped with Dy2O3 displays the strong luminescence in the VIS region. It has the potential for applications in high-energy and nuclear physics, radiation control and homeland security. | Wantana, N.; Ruangtaweep, Y.; Kaewnuam, E.; Kang, S. C.; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Phys Program, Fac Sci & Technol, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Muban Chombueng Rajabhat Univ, Fac Sci & Technol, Phys Program, Ratchaburi 70150, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 702701, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Dept Radiol Technol, Ctr Radiat Res & Med Imaging, Chiang Mai 50200, Thailand | Kaewnaum, Eakgapon/JWO-6262-2024; Kim, Hong Joo/AAE-1178-2022 | 56267058700; 37108588700; 56267295300; 57191418531; 59051568100; 6507017165; 23974520300 | yotsakitt@hotmail.com;jakrapong@webmail.npru.ac.th; | SOLID STATE SCIENCES | SOLID STATE SCI | 1293-2558 | 1873-3085 | 101 | SCIE | CHEMISTRY, INORGANIC & NUCLEAR;CHEMISTRY, PHYSICAL;PHYSICS, CONDENSED MATTER | 2020 | 3.059 | 34.4 | 2.41 | 2025-06-25 | 47 | 52 | Dy3+ doped tungsten-gadolinium-borate glasses; Glass scintillator; High-density glass | ENERGY-TRANSFER; BORATE GLASSES; LUMINESCENCE PROPERTIES; WHITE-LIGHT; INORGANIC SCINTILLATORS; BOROPHOSPHATE GLASSES; OPTICAL-PROPERTIES; PHOSPHATE-GLASSES; GD3+; SM3+ | Dy<sup>3+</sup> doped tungsten-gadolinium-borate glasses; Glass scintillator; High-density glass | Gadolinium compounds; Glass; Infrared devices; Light; Luminescence; Quenching; Tungsten compounds; X rays; Borate glass; Glass scintillator; High density glass; Luminescence properties; Maximum concentrations; Melt quenching techniques; Scintillation materials; Temperature dependent; Dysprosium compounds | English | 2020 | 2020-03 | 10.1016/j.solidstatesciences.2020.106135 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | ENDURUNS: An Integrated and Flexible Approach for Seabed Survey Through Autonomous Mobile Vehicles | The oceans cover more than two-thirds of the planet, representing the vastest part of natural resources. Nevertheless, only a fraction of the ocean depths has been explored. Within this context, this article presents the H2020 ENDURUNS project that describes a novel scientific and technological approach for prolonged underwater autonomous operations of seabed survey activities, either in the deep ocean or in coastal areas. The proposed approach combines a hybrid Autonomous Underwater Vehicle capable of moving using either thrusters or as a sea glider, combined with an Unmanned Surface Vehicle equipped with satellite communication facilities for interaction with a land station. Both vehicles are equipped with energy packs that combine hydrogen fuel cells and Li-ion batteries to provide extended duration of the survey operations. The Unmanned Surface Vehicle employs photovoltaic panels to increase the autonomy of the vehicle. Since these missions generate a large amount of data, both vehicles are equipped with onboard Central Processing units capable of executing data analysis and compression algorithms for the semantic classification and transmission of the acquired data. | Marini, Simone; Gjeci, Nikolla; Govindaraj, Shashank; But, Alexandru; Sportich, Benjamin; Ottaviani, Ennio; Garcia Marquez, Fausto Pedro; Bernalte Sanchez, Pedro Jose; Pedersen, Jonas; Clausen, Casper Vetke; Madricardo, Fantina; Foglini, Fedeirca; Bonofiglio, Federico; Barbieri, Laura; Antonini, Massimiliano; Camacho, Yeidy Sorani Montenegro; Weiss, Peter; Nowak, Kathrin; Peer, Makthoum; Gobert, Thibaud; Turetta, Alessio; Chatzidouros, Elias; Lee, Dongik; Zarras, Dimitris; Steriotis, Theodore; Charalambopoulou, Georgia; Yamas, Thanos; Papaelias, Mayorkinos | Natl Res Council Italy CNR, Inst Marine Sci, I-19032 La Spezia, Italy; Stn Zool Anton Dohrn SZN, I-80122 Naples, Italy; AIR Srl, Via Carlo Barabino 26, I-16129 Genoa, Italy; Space Applicat Serv NV SA, Leuvensesteenweg 325, B-1932 Sint Stevens Woluwe, Brussels Area, Belgium; Univ Castilla La Mancha, ETSI Ind, Campus Univ S-N, Ciudad Real 13071, Spain; Tuco Grp ApS, Krogsbjergvej 2, DK-5600 Faborg, Denmark; Natl Res Council Italy CNR, Inst Marine Sci, Arsenale Tesa 104,Castello 2737-F, I-30122 Venice, Italy; Natl Res Council Italy CNR, Inst Marine Sci, Via P Gobetti 101, I-40129 Bologna, Italy; HysyTech Srl, Str Drosso 33-18, I-10135 Turin, Italy; COMEX, 36 Blvd Oceans, F-13009 Marseille, France; Graal Tech Srl, Via Tagliolini 26, I-16152 Genoa, Italy; Engitec Syst Int Ltd, 143 Spyrou Kyprianou Ave Chrysanthou Business C, CY-3083 Limassol, Cyprus; Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Z GRP, Apostolos Pavlou 9 Neo Irakleio, Athens 14122, Greece; Natl Ctr Sci Res DEMOKRITOS, Patriarchou Grigoriou E & 27 Neapoleos St, Aghia Paraskevi 15341, Greece; ALTUS LSA, Renieri 9, Khania 73100, Greece; Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England | Madricardo, Fantina/AAY-2986-2020; Papaelias, Mayorkinos/AAD-5324-2019; Marini, Simone/C-3872-2012; Charalambopoulou, Georgia/GXN-0641-2022; Garcia Marquez, Fausto Pedro/D-7529-2011; Bernalte, Pedro/A-8700-2019; Bernalte, Pedro/AAT-3857-2020 | 8729024700; 57193198789; 56040282500; 57214791245; 57218837125; 7102082014; 57200782595; 57216411206; 57218837054; 57218834500; 8401894000; 23027607700; 57191993714; 57203759560; 57193339166; 57218837170; 57197445260; 57218837256; 57203390599; 56323321000; 9240224000; 43960934200; 55698910600; 57188730136; 7003659998; 6603381919; 57218834643; 6505791928 | simone.marini@sp.ismar.cnr.it;nikolla.gjeci@onairweb.com;shashank.govindaraj@spaceapplications.com;alexandru.but@spaceapplications.com;benjamin.sportich@spaceapplications.com;ennio.ottaviani@onairweb.com;faustopedro.garcia@uclm.es;Pedro.Bernalte@uclm.es;jonas@tuco.dk;cvc@tuco.dk;fantina.madricardo@ve.ismar.cnr.it;federica.foglini@bo.ismar.cnr.it;federico.bonofiglio@sp.ismar.cnr.it;laura.barbieri@sp.ismar.cnr.it;massimiliano.antonini@hysytech.com;sorani.montenegro@hysytech.com;p.weiss@comex.fr;k.nowak@comex.fr;m.peer@comex.fr;t.gobert@comex.fr;alessio.turetta@graaltech.it;ech@esi-ltd.eu;dilee@knu.ac.kr;dzarras@z-group.gr;t.steriotis@inn.demokritos.gr;gchar@ipta.demokritos.gr;tyamas@altus-lsa.com;m.Papaelias@bham.ac.uk; | JOURNAL OF MARINE SCIENCE AND ENGINEERING | J MAR SCI ENG | 2077-1312 | 8 | 9 | SCIE | ENGINEERING, MARINE;ENGINEERING, OCEAN;OCEANOGRAPHY | 2020 | 2.458 | 34.4 | 3.15 | 2025-06-25 | 40 | 45 | autonomous underwater vehicles; unmanned surface vehicles; seabed survey; habitat mapping; autonomous ocean monitoring | UNDERWATER VEHICLES; MARINE; BATTERY; SURFACE; SYSTEM; ARCHITECTURE; SIMULATION; MANAGEMENT; NETWORKS; SENSORS | Autonomous ocean monitoring; Autonomous underwater vehicles; Habitat mapping; Seabed survey; Unmanned surface vehicles | English | 2020 | 2020-09 | 10.3390/jmse8090633 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Functional Ambulation Profile (FAP) Score as a Potential Marker of Gait Analysis in Myotonic Dystrophy Type 1 | Recent studies on Myotonic dystrophy type 1 (DM1) have shown profound impairments in gait, leading to falls. We analyzed functional ambulation profile (FAP) score that reflects the temporal and spatial gait characteristics and investigated correlations with the lower limb muscle magnetic resonance imaging (MRI) and 6 min walk test (6MWT). Twenty patients with DM1 and 20 controls participated in this study. The 6MWT and gait analysis including FAP scores via GAITRite were performed in all patients and controls. DM1 patients displayed slower gait, shorter stride length, shorter stance length, and lower FAP score. Among lower extremity muscles, the gastrocnemius, soleus and tibialis anterior showed the most severe fat infiltration and these crural muscles significantly correlated with FAP and 6MWT. Among crural muscles, tibialis anterior was the most important muscle affecting gait speed, whereas the gastrocnemius contributed substantially to gait instability. FAP score correlated with the muscle imaging and 6MWT in DM1. Therefore, FAP score maybe used as an non-invasive marker that reflects deterioration of gait and a possible surrogate biomarker in DM1. | Kim, Sunyoung; Lim, Yong-Hyun; Kang, Kyunghun; Park, Donghwi; Lee, Ho-Won; Park, Jin-Sung | Univ Ulsan, Ulsan Univ Hosp, Dept Neurol, Coll Med, Ulsan, South Korea; Kyungpook Natl Univ, Ctr Self Organizing Software Platform, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Univ Ulsan, Ulsan Univ Hosp, Dept Phys Med & Rehabil, Coll Med, Ulsan, South Korea | ; Park, Donghwi/GYQ-6185-2022 | 57196226825; 57202416711; 55365592200; 56606561400; 35337240700; 44061744500 | neurojspark@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.24 | 2025-06-25 | 10 | 7 | myotonic dystrophy; gait; FAP score; gastrocnemius; tibialis anterior; instability | MUSCLE; PARAMETERS; WALK; MRI; IMPAIRMENT; VALIDITY; DISEASE; SYSTEM; FALLS | FAP score; gait; gastrocnemius; instability; myotonic dystrophy; tibialis anterior | adult; Article; clinical article; controlled study; correlational study; disease assessment; female; functional ambulation profile score; gait; gastrocnemius muscle; human; male; middle aged; myotonic dystrophy; nuclear magnetic resonance imaging; scoring system; six minute walk test; soleus muscle; tibialis anterior muscle; walking speed | English | 2020 | 2020-05-19 | 10.3389/fneur.2020.00392 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Genomic Analysis Identifies New Loci Associated With Motor Complications in Parkinson's Disease | Background:Parkinson's disease (PD) is a common neurodegenerative disorder, characterized by a clinical symptomatology involving both motor and non-motor symptoms. Motor complications associated with long-term dopaminergic treatment include motor fluctuations and levodopa-induced dyskinesia (LID), which may have a major impact on the quality of life. The clinical features and onset time of motor complications in the disease course are heterogeneous, and the etiology remains unknown. Objective:We aimed to identify genomic variants associated with the development of motor fluctuations and LID at 5 years after the onset of PD. Methods:Genomic data were obtained using Affymetrix Axiom KORV1.1 array, including an imputation genome-wide association study (GWAS) grid and other GWAS loci; functional variants of the non-synonymous exome; pharmacogenetic variants; variants in genes involved in absorption, distribution, metabolism, and excretion of drugs; and expression quantitative trait loci in 741 patients with PD. Results:FAM129Bsingle-nucleotide polymorphism (SNP) rs10760490 was nominally associated with the occurrence of motor fluctuations at 5 years after the onset of PD [odds ratio (OR) = 2.9, 95% confidence interval (CI) = 1.8-4.8,P= 6.5 x 10(-6)].GALNT14SNP rs144125291 was significantly associated with the occurrence of LID (OR = 5.5, 95% CI = 2.9-10.3,P= 7.88 x 10(-9)) and was still significant after Bonferroni correction. Several other genetic variants were associated with the occurrence of motor fluctuations or LID, but the associations were not significant after Bonferroni correction. Conclusion:This study identified new loci associated with the occurrence of motor fluctuations and LID at 5 years after the onset of PD. However, further studies are needed to confirm our findings. | Ryu, Ho-Sung; Park, Kye Won; Choi, Nari; Kim, Jinhee; Park, Young-Min; Jo, Sungyang; Kim, Mi-Jung; Kim, Young Jin; Kim, Juyeon; Kim, Kiju; Koh, Seong-Beom; Chung, Sun Ju | Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Univ Ulsan, Asan Med Ctr, Dept Neurol, Coll Med, Seoul, South Korea; Korea Univ, Guro Hosp, Dept Neurol, Seoul, South Korea; Korea Univ, Guro Hosp, Parkinsons Dis Ctr, Seoul, South Korea; Dobong Hosp, Dept Neurol, Seoul, South Korea; Bobath Mem Hosp, Dept Neurol, Seongnam Si, South Korea; Best Heals Hosp, Dept Neurol, Ansan, South Korea; Metro Hosp, Dept Neurol, Anyang, South Korea; Good Light Hosp, Dept Neurol, Gwangju, South Korea | kim, jong-eun/B-3550-2017 | 57014206500; 57194448346; 57208574478; 57211342579; 55966365300; 57204969008; 56040577000; 57207443135; 57203325111; 56505680500; 8573789300; 56882955600 | sjchung@amc.seoul.kr; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.81 | 2025-06-25 | 14 | 15 | genome-wide association study; genomic variants; Parkinson's disease; motor fluctuations; levodopa-induced dyskinesia | GALNT14 GENOTYPE; INDUCED DYSKINESIA; LEVODOPA; CANCER; GENE; COMMON; NEUROPATHOLOGY; COMBINATION; METASTASIS; PLASTICITY | genome-wide association study; genomic variants; levodopa-induced dyskinesia; motor fluctuations; Parkinson's disease | levodopa; adult; adverse outcome; aged; Article; clinical effectiveness; clinical feature; drug effect; drug efficacy; drug response; dyskinesia; exome; FAM129B gene; female; follow up; GALNT14 gene; gene; gene locus; genetic association; genetic variability; genome-wide association study; genomics; human; major clinical study; male; motor dysfunction; Parkinson disease; pharmacogenetic variant; quantitative trait locus; risk factor; single nucleotide polymorphism; treatment outcome | English | 2020 | 2020-07-07 | 10.3389/fneur.2020.00570 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Isolation, Identification, and Biochemical Characteristics of a Cold-Tolerant Chlorella vulgaris KNUA007 Isolated from King George Island, Antarctica | A cold-tolerant unicellular green alga was isolated from a meltwater stream on King George Island, Antarctica. Morphological, molecular, and biochemical analyses revealed that the isolate belonged to the species Chlorella vulgaris. We tentatively named this algal strain C. vulgaris KNUA007 and investigated its growth and lipid composition. We found that the strain was able to thrive in a wide range of temperatures, from 5 to 30 degrees C; however, it did not survive at 35 degrees C. Ultimate analysis confirmed high gross calorific values only at low temperatures (10 degrees C), with comparable values to land plants for biomass fuel. Gas chromatography/mass spectrometry analysis revealed that the isolate was rich in nutritionally important polyunsaturated fatty acids (PUFAs). The major fatty acid components were hexadecatrienoic acid (C16:3 omega 3, 17.31%), linoleic acid (C18:2 omega 6, 8.52%), and alpha-linolenic acid (C18:3 omega 3, 43.35%) at 10 degrees C. The microalga was tolerant to low temperatures, making it an attractive candidate for the production of biochemicals under cold weather conditions. Therefore, this Antarctic microalga may have potential as an alternative to fish and/or plant oils as a source of omega-3 PUFA. The temperature tolerance and composition of C. vulgaris KNUA007 also make the isolate desirable for commercial applications in the pharmaceutical industry. | Jo, Seung-Woo; Do, Jeong-Mi; Kang, Nam Seon; Park, Jong Myong; Lee, Jae Hak; Kim, Han Soon; Hong, Ji Won; Yoon, Ho-Sung | Kyungpook Natl Univ, Adv Bioresource Res Ctr, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Life Sci, Plus KNU Creat BioRes Grp BK21, Daegu 41566, South Korea; Kyungpook Natl Univ, Coll Nat Sci, Dept Biol, Daegu 41566, South Korea; Natl Marine Biodivers Inst Korea, Dept Taxon & Systemat, Seocheon 33662, South Korea; Waterworks Headquarters Incheon Metropolitan City, Water Qual Res Inst, Incheon 22101, South Korea; Kyungpook Natl Univ, Dept Hydrogen & Renewable Energy, Daegu 41566, South Korea | Park, Jong Myong/D-5535-2014 | 56018962600; 57208562245; 7102653317; 54382161000; 55690077600; 7410135359; 57201579963; 7402990205 | jsw8796@gmail.com;leciel631@naver.com;kang3610@mabik.re.kr;eveningwater@hanmail.net;hakis@knu.ac.kr;kimhsu@knu.ac.kr;jwhong@knu.ac.kr;hsy@knu.ac.kr; | JOURNAL OF MARINE SCIENCE AND ENGINEERING | J MAR SCI ENG | 2077-1312 | 8 | 11 | SCIE | ENGINEERING, MARINE;ENGINEERING, OCEAN;OCEANOGRAPHY | 2020 | 2.458 | 34.4 | 1.05 | 2025-06-25 | 17 | 21 | Chlorella vulgaris; cold-tolerant; PUFAs (polyunsaturated fatty acids); calorific value | POLYUNSATURATED FATTY-ACIDS; MICRACTINIUM CHLOROPHYTA; GENOME REVEALS; GREEN-ALGAE; TEMPERATURE; DIVERSITY; GENES; TREBOUXIOPHYCEAE; PHYLODIVERSITY; CYANOBACTERIA | Calorific value; Chlorella vulgaris; Cold-tolerant; PUFAs (polyunsaturated fatty acids) | English | 2020 | 2020-11 | 10.3390/jmse8110935 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Modification of Acute Stroke Pathway in Korea After the Coronavirus Disease 2019 Outbreak | Background: Since the global pandemic of coronavirus disease 2019 (COVID-19), the process of emergency medical services has been modified to ensure the safety of healthcare professionals as well as patients, possibly leading to a negative impact on the timely delivery of acute stroke care. This study aimed to assess the impact of the COVID-19 pandemic on the acute stroke care processes and outcomes in tertiary COVID-19-dedicated centers in South Korea. Methods: We included 1,213 patients with acute stroke admitted to three centers in three cities (Seoul, Seongnam, and Daegu) through the stroke critical pathway between September 2019 and May 2020 (before and during the COVID-19 pandemic). In all three centers, we collected baseline characteristics and parameters regarding the stroke critical pathway, including the number of admitted patients diagnosed with acute stroke through the stroke critical pathway, door to brain imaging time, door to intravenous recombinant tissue plasminogen activator time, door to groin puncture time, and door to admission time. We performed an interrupted time series analysis to determine the impact of the COVID-19 outbreak on outcomes and critical pathway parameters. Results: Three centers modified the protocol of the stroke critical pathway during the COVID-19 pandemic. There was an immediate decrease in the number of patients admitted with acute ischemic stroke after the outbreak of COVID-19 in Korea, especially in the center of Daegu, an epicenter of the COVID-19 outbreak. However, the number of patients with stroke soon increased to equal that before the Covid-19 outbreak. In several critical pathway parameters, door to imaging time showed a temporary increase, and door to admission was transiently decreased after the COVID-19 outbreak. However, there was no significant effect on the timely trend. Moreover, there was no significant difference in the baseline characteristics and clinical outcomes between the periods before and during the COVID-19 pandemic. Conclusion: This study demonstrated that the COVID-19 outbreak immediately affected the management process. However, it did not have a significant overall impact on the trends of stroke treatment processes and outcomes. The stroke management process should be modified according to changing situations for optimal acute management. | Kim, Tae Jung; Kim, Beom Joon; Gwak, Dong-Seok; Lee, Ji Sung; Kim, Jun Yup; Lee, Keon-Joo; Kwon, Jung-A; Shim, Dong-Hyun; Kim, Yong-Won; Kang, Min Kyoung; Lee, Eung-Jun; Nam, Ki-Woong; Bae, Jeonghoon; Jeon, Kipyoung; Jeong, Han-Yeong; Jung, Keun-Hwa; Hwang, Yang-Ha; Bae, Hee-Joon; Yoon, Byung-Woo; Ko, Sang-Bae | Seoul Natl Univ Hosp, Dept Neurol, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Crit Care Med, Seoul, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Neurol, Seongnam, South Korea; Seoul Natl Univ, Bundang Hosp, Gyunggi Reg Cardiocerebrovasc Ctr, Seongnam, South Korea; Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurol, Daegu, South Korea; Univ Ulsan, Dept Clin Epidemiol & Biostat, Asan Med Ctr, Coll Med, Seoul, South Korea | ; Kim, Jinkwon/AAR-6729-2021; LEE, Seung/G-4846-2018; kim, deog young/Q-8498-2019; Yoon, Byung/J-5557-2012; HWANG, Yang-Ha/F-3068-2013; Lee, Joo-Yong/F-4545-2014; Jeon, Kipyoung/ABB-1085-2020; Kim, Tae/AAR-9213-2020; LEE, Keon-Joo/AAO-4206-2020 | 57221498970; 56415337700; 57205148053; 57212925539; 57192279482; 55897882800; 57220198799; 56779672200; 56203298200; 55842386400; 57211337971; 57189377536; 57220197011; 56999928000; 57210509084; 7402479984; 7402311308; 7103223963; 13310144900; 7403326154 | sangbai1378@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.16 | 2025-06-25 | 2 | 3 | COVID-19; stroke; critical pathway; parameters; modification | TIME | COVID-19; critical pathway; modification; parameters; stroke | alteplase; aged; Article; brain ischemia; cerebrovascular accident; clinical pathway; clinical protocol; computer assisted tomography; coronavirus disease 2019; female; hospital admission; human; isolation; major clinical study; male; National Institutes of Health Stroke Scale; negative pressure isolation room; nuclear magnetic resonance imaging; pandemic; percutaneous thrombectomy; quarantine; Rankin scale; retrospective study; screening; South Korea; tertiary health care; time series analysis; time to treatment; ward | English | 2020 | 2020-11-19 | 10.3389/fneur.2020.597785 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Risk Factor Analysis of Delayed Intracerebral Hemorrhage After Coil Embolization of Unruptured Cerebral Aneurysms | Background: We sought to analyze diffusion-weighted imaging (DWI) and dual antiplatelet therapy (DAPT) for risk factors of delayed intracerebral hemorrhage (d-ICH) after coil embolization for an unruptured intracranial aneurysm (UIA). Methods: A total of 539 aneurysms were analyzed in this study. Ruptured and flow diverter cases were excluded. All aneurysms enrolled in this study were treated with stent-assisted or simple coiling techniques. Before the procedure, all patients administered (DAPT). After the procedure, patients who underwent stent-assisted coil embolization were given DAPT, and patients who underwent simple coiling were given single antiplatelet therapy (SAPT) only during their admission. The response of the antiplatelet agent was assessed the day before the procedure with The VerifyNow assay. DWI MRI and CT were obtained routinely the next day after the procedure. d-ICH was defined as an intracerebral hemorrhagic lesion identified in follow up CT at least 48 h after the procedure. Results: A larger positive lesion on day 1 DWI MRI (p = 0.001), the value of PRU (p = 0.002), and the inhibition rate (p = 0.025) were considered meaningful risk factors for d-ICH in univariate analysis. Accordingly, larger DWI positivity (OR = 83.73, 95% CI = 11.132-712.886, P = 0.001) and PRU (OR = 0.98, 95% CI = 0.972-0.999, P = 0.033) reached statistical significance in multivariate analysis. Conclusions: Thromboembolic infarction may work as an initiating factor, and antiplatelet medication may work as an aggravating factor. We might suggest that a tailored reduction in antiplatelet agents could help reduce d-ICH when a larger volume of post-procedural thromboembolic infarction is seen on 1-day follow-up DWI MRI. | Son, Wonsoo; Kang, Dong-Hun | Kyungpook Natl Univ, Sch Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | 36676729400; 8977805800 | kdhdock@hotmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.57 | 2025-06-25 | 8 | 10 | antiplatelate activity; risk factor; intracranial aneurysm; embolization; cerebral hemorrhage | CLOPIDOGREL HYPER-RESPONSE; ENDOVASCULAR TREATMENT; INTRACRANIAL HEMORRHAGE; THERAPY | antiplatelate activity; cerebral hemorrhage; embolization; intracranial aneurysm; risk factor | acetylsalicylic acid; clopidogrel; heparin; adult; Article; brain artery aneurysm; brain hemorrhage; brain infarction; brain radiography; coil embolization; controlled study; diffusion weighted imaging; drug response; dual antiplatelet therapy; female; follow up; hospital admission; human; major clinical study; male; middle aged; multivariate analysis; patient; retrospective study; risk factor; risk factor analysis; stent assisted coil embolization; thromboembolism; univariate analysis; university hospital; x-ray computed tomography | English | 2020 | 2020-10-30 | 10.3389/fneur.2020.584596 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Review | Statin Effects in Atrial Fibrillation-Related Stroke: A Systematic Review and Meta-Analysis | Background:Statins lower the risk of recurrent stroke and mortality and improve outcomes in patients with ischemic stroke. However, the effects of statins on atrial fibrillation (AF)-related stroke are not well-established. Our study aims to investigate the effects of statin therapy on the clinical outcomes in patients with AF-related stroke. Methods:Electronic databases (MEDLINE, Embase, and Scopus) were searched for previous studies on the effects of pre- and post-stroke statins on the clinical outcomes in AF-related stroke patients. The primary outcome was all-cause mortality. Secondary outcomes included recurrent ischemic stroke, acute coronary events, major adverse cardiovascular events (MACE), and short-term functional outcomes. We extracted hazard ratios (HRs) or odds ratios (ORs) with 95% confidence interval (CI) from each study and pooled them through a meta-analysis. Results:A total of eight studies (five on post-stroke statins and three on pre-stroke statins) with 12,216 patients were included in the analysis. Post-stroke statin therapy reduced the risk of all-cause mortality (HR, 0.63; 95% CI, 0.55-0.74). This beneficial effect was sustained regardless of statin intensity. However, no significant associations were observed between statin therapy and a reduction in the risk of recurrent ischemic stroke, acute coronary events, or MACE. Pre-stroke statin use was associated with a lower risk of poor short-term functional outcomes (OR, 0.63; 95% CI, 0.47-0.85). Conclusions:Statin therapy for AF-related stroke may reduce all-cause mortality and improve functional outcomes. Randomized controlled studies are warranted to confirm the effects of statins on the outcomes of AF-related stroke. | Eun, Mi-Yeon; Jung, Jin-Man; Choi, Kang-Ho; Seo, Woo-Keun | Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Korea Univ, Ansan Hosp, Coll Med, Dept Neurol, Ansan, South Korea; Korea Univ, Zebrafish Translat Med Res Ctr, Ansan, South Korea; Chonnam Natl Univ Hosp, Dept Neurol, Gwangju, South Korea; Sungkyunkwan Univ, Samsung Med Ctr, Dept Neurol, Sch Med, Seoul, South Korea | Jung, Jin-Man/LJL-8037-2024; Eun, Mi-Yeon/AAV-2877-2021; Choi, Kangho/HKV-1503-2023 | 36463396500; 15755814800; 36491173100; 22981667600 | dr.jinmanjung@gmail.com;mcastenosis@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 4.003 | 34.4 | 0.35 | 2025-06-25 | 12 | 13 | atrial fibrillation; statins; stroke; mortality; functional outcome; systematic review; meta-analysis | ACUTE ISCHEMIC-STROKE; CLINICAL-OUTCOMES; RISK-FACTORS; THERAPY; ASSOCIATION; MORTALITY; SURVIVAL; INTENSITY; PROGNOSIS | atrial fibrillation; functional outcome; meta-analysis; mortality; statins; stroke; systematic review | hydroxymethylglutaryl coenzyme A reductase inhibitor; acute coronary syndrome; all cause mortality; atrial fibrillation; brain ischemia; cardiovascular disease; cerebrovascular accident; clinical outcome; confidence interval; disease association; drug effect; functional assessment; hazard ratio; human; meta analysis; odds ratio; pooled analysis; publication bias; recurrent disease; Review; risk reduction; sensitivity analysis; statistical analysis; stroke patient; systematic review | English | 2020 | 2020-10-09 | 10.3389/fneur.2020.589684 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Thermal stability, cation dynamics, and ferroelastic domain walls in the α→β→γ phase transitions of perovskite (C2H5NH3)2MnCl4 crystals | Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) confirmed that the (C2H5NH3)(2)MnCl4 crystal undergoes alpha-beta-gamma phase transitions at approximately T-C2 = 225 K and T-C1 = 424 K, remains stable until 470 K, and displays a weight loss of 25.24% at around 579 K due to partial thermal decomposition. Cation dynamics near these temperatures was investigated by MAS H-1 NMR and MAS C-13 NMR experiments. The small changes in the H-1 chemical shift for C2H5 near T-C2 are consistent with the transition from the orthorhombic gamma-phase to the orthorhombic beta-phase. Also, the abrupt changes in NMR signals near T-C1 correspond to structural change from the orthorhombic beta-phase to the tetragonal alpha-phase. The C-13 spin-lattice relaxation time in the rotating frame (T-1 rho) below T-C2 is shorter for CH3 than that for CH2, due to the greater mobility at the free end of the alkyl chain. In addition, the temperature-dependent ferroelastic domain structure was studied near the alpha-beta phase transition. There was no noticeable temperature dependence in H-1 and C-13 T-1 rho values at T-C1 and T-C2, whereas the change in the domain wall was prominent near T-C1. | Lim, Ae Ran; Kim, Sun Ha | Jeonju Univ, Analyt Lab Adv Ferroelect Crystals, Jeonju 55069, South Korea; Jeonju Univ, Dept Sci Educ, Jeonju 55069, South Korea; Korea Basic Sci Inst, Seoul Western Ctr, Seoul 120140, South Korea; Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea | 7202659025; 54386953600 | arlim@jj.ac.kr; | SOLID STATE SCIENCES | SOLID STATE SCI | 1293-2558 | 1873-3085 | 107 | SCIE | CHEMISTRY, INORGANIC & NUCLEAR;CHEMISTRY, PHYSICAL;PHYSICS, CONDENSED MATTER | 2020 | 3.059 | 34.4 | 0.07 | 2025-06-25 | 4 | 4 | C2H5NH3)(2)MnCl4; Phase transition; Thermal stability; Nuclear magnetic resonance; Ferroelastic domain | H-1 MAS NMR; SIDE-BAND; X-RAY; STATE; TETRACHLOROMANGANATE(II); BIREFRINGENCE; BEHAVIOR | C<sub>2</sub>H<sub>5</sub>NH<sub>3</sub>)<sub>2</sub>MnCl<sub>4</sub>; Ferroelastic domain; Nuclear magnetic resonance; Phase transition; Thermal stability | Chemical shift; Crystals; Decomposition; Differential scanning calorimetry; Domain walls; Nuclear magnetic resonance spectroscopy; Perovskite; Positive ions; Temperature distribution; 13C spin-lattice relaxation; Alpha phase; Ferroelastic domain structures; Ferroelastic domains; Rotating frame; Temperature dependence; Temperature dependent; Weight loss; Thermogravimetric analysis | English | 2020 | 2020-09 | 10.1016/j.solidstatesciences.2020.106365 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Multi -Authority CP-ABE-Based user access control scheme with constant -size key and ciphertext for IoT deployment | Banerjee, Soumya; Roy, Sandip; Odelu, Vanga; Das, Ashok Kumar; Chattopadhyay, Samiran; Rodrigues, Joel J. P. C.; Park, Youngho | Jadavpur Univ, Dept Informat Technol, Kolkata 700098, India; Asansol Engn Coll, Dept Comp Sci & Engn, Asansol 713305, W Bengal, India; Indian Inst Informat Technol Sri City, Dept Comp Sci & Engn, Sri City 517588, Andhra Pradesh, India; Int Inst Informat Technol, Ctr Secur Theory & Algorithm Res, Hyderabad 500032, India; Fed Univ Piaui UFPI, BR-64049550 Teresina Pi, Brazil; Inst Telecomunicacoes, P-1049001 Lisbon, Portugal; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Northumbria Univ, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England | Rodrigues, Joel/A-8103-2013; Das, Ashok Kumar/U-2790-2019; Banerjee, Soumya/AAD-3011-2019; Chattopadhyay, Samiran/AAW-3145-2021; Roy, Sandip/ABI-3535-2020; Vanga, Odelu/AAD-3174-2021 | 55477346700; 56591063600; 55418632300; 55450732800; 55424776200; 25930566300; 56962990300 | soumyaBanerjee@outlook.in;sandiproy9500@gmail.com;odelu.vanga@iiits.in;iitkgp.akdas@gmail.com;samirancju@gmail.com;joeljr@ieee.org;parkyh@knu.ac.kr; | JOURNAL OF INFORMATION SECURITY AND APPLICATIONS | J INF SECUR APPL | 2214-2126 | 2214-2134 | 53 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS | 2020 | 3.872 | 34.5 | 2.74 | 2025-06-25 | 48 | 60 | ATTRIBUTE-BASED ENCRYPTION; INTERNET; THINGS; AUTHENTICATION; SECURITY; PROTOCOLS; EXCHANGE | Attribute-based encryption; AVISPA; Internet of things (IoT); Multi-authority ABE; Security; User access control | Access control; Automation; Cryptography; Security systems; Smart cards; Amount of information; Attribute-based encryptions; Multi authorities; Potential attack; Public internet; Security analysis; Security threats; User access control; Internet of things | English | 2020 | 2020-08 | 10.1016/j.jisa.2020.102503 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Decoration of Graphene Quantum Dots on TiO2 Nanostructures: Photosensitizer and Cocatalyst Role for Enhanced Hydrogen Generation | Production of H-2 fuel from photocatalytic splitting of water is one of the most demanding research studies in terms of sustainable development in the energy sector. In our quest to find an effective photocatalyst for H-2 production, we prepared graphene quantum dots/TiO2-based nanocomposites using a simple hydrothermal method and studied the effect of varying morphologies of TiO2 on photocatalytic H-2 production. The crystal structure, morphology, surface, and optical properties were thoroughly studied by using X-ray diffraction and different spectroscopic and electron microscopic techniques. The outcome of the comparative study by using various graphene quantum dots/TiO2 nanocomposites found that P-25 TiO2-based nanocomposite gives the highest rate of H-2 production among all with 29,548 mu mol g(-1) h(-1) and is almost 14 times efficient compared to pristine P-25 TiO2. It was also evident from the characterization results that the morphology and biphasic nature of TiO2 play a crucial role in H-2 production. The plausible reaction mechanism explained the dual role (cocatalyst and sensitizer) of graphene quantum dots on TiO2 nanoparticles and beneficial properties of biphasic TiO2 as an efficient charge transfer mechanism. The prepared photocatalysts also exhibited good stability, which was examined for four cycles with a time period of 4 h, making them feasible candidates for practical applications in the future. | Raghavan, Akshaya; Sarkar, Suprabhat; Nagappagari, Lakshmana Reddy; Bojja, Sreedhar; Venkatakrishnan, Shankar Muthukonda; Ghosh, Sutapa | Yogi Vemana Univ, Dept Mat Sci & Nanotechnol, Nanocatalysis & Solar Fuels Res Lab, Kadapa 516005, Andhra Pradesh, India; CSIR IICT, Polymers & Funct Mat Div, Hyderabad 500007, TS, India; Acad Sci & Innovat Res AcSIR, New Delhi 110001, India; Kyungpook Natl Univ, Sch Nano & Mat Sci & Engn, Dept Energy Chem Engn, Sangju 37224, South Korea; CSIR IICT, Analyt Div, Hyderabad 500007, TS, India | Venkatakrishnan, Shankar/AAC-1460-2019; Muthukonds Venkatakrishnan, Shankar/AAC-1460-2019; Raghavan, Akshaya/JPA-4361-2023; N, Dr. Lakshmana Reddy/K-2238-2019; Nagappagari, Lakshmana Reddy/K-2238-2019 | 57218526881; 56477897600; 56499352000; 55145931500; 57218527716; 57199380396 | shankar@yogivemanauniversity.ac.in;sghosh@csiriict.in; | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | IND ENG CHEM RES | 0888-5885 | 59 | 29 | SCIE | ENGINEERING, CHEMICAL | 2020 | 3.764 | 34.6 | 2.5 | 2025-06-25 | 51 | 56 | PHOTOCATALYTIC H-2-PRODUCTION ACTIVITY; H-2 PRODUCTION; CARBON DOTS; SOLAR; EVOLUTION; HYBRID; WATER; COMPOSITES; NANOTUBES; ANATASE | Charge transfer; Crystal structure; Graphene; Graphene quantum dots; Morphology; Nanocomposites; Nanocrystals; Optical properties; Oxide minerals; Photosensitizers; Semiconductor quantum dots; TiO2 nanoparticles; Titanium dioxide; Charge transfer mechanisms; Comparative studies; Hydrogen generations; Hydrothermal methods; Microscopic techniques; Photocatalytic splitting; Reaction mechanism; Research studies; Hydrogen production | English | 2020 | 2020-07-22 | 10.1021/acs.iecr.0c01663 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: