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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Kaistella soli sp. nov., isolated from oil-contaminated experimental soil | A light yellow-coloured, non-motile, aerobic, Gram-stain-negative, and rod-shaped bacterial strain DKR-2(T) was isolated from oil-contaminated experimental soil. The strain was catalase and oxidase positive, and grew at 0-1.5% (w/v) NaCl concentration, at temperature 10-35 degrees C, and at pH 6.0-9.5. The phylogenetic analysis suggested that the strain DKR-2(T) was affiliated to the genus Kaistella, with the closest species being Kaistella haifensis DSM 19056(T) (97.6% 16S rRNA gene sequence similarity). The principle fatty acids were iso-C-15:0, summed feature 9 (iso-C-17:1 omega 9c and/or C-16:0 10-methyl), and antiso-C-15:0. The sole menaquinone was MK-6 and major polar lipid was phosphatidylethanolamin. The DNA G+C content was 39.5%. The dDDH (in silico DNA-DNA hybridization) and ANI (average nucleotide identity) values between strain DKR-2(T) and K. haifensis DSM 19056(T) were 22.4% and 79.3%, respectively. In addition, both dDDH and ANI values between strain DKR-2(T) and other phylogenetically related neighbours were < 25.0% and < 77.0%, respectively. In overall, the polyphasic taxonomic data presented in this study clearly indicated that strain DKR-2(T) represents a novel species in the genus Kaistella, for which the name Kaistella soli sp. nov. is proposed. The type strain is DKR-2(T) (=KACC 22070(T)=NBRC 114725(T)). | Chaudhary, Dhiraj Kumar; Dahal, Ram Hari; Park, Joung-Ho; Hong, Yongseok | Korea Univ, Coll Sci & Technol, Dept Environm Engn, Sejong Campus,2511 Sejong Ro, Sejong City 30019, South Korea; Kyungpook Natl Univ, Sch Med, Dept Microbiol, Daegu 41944, South Korea | Chaudhary, Dhiraj/S-7772-2016; Dahal, Ram Hari/H-8673-2016 | 57191257432; 57110097800; 57403760000; 37761423700 | yongseokhong@korea.ac.kr; | ARCHIVES OF MICROBIOLOGY | ARCH MICROBIOL | 0302-8933 | 1432-072X | 204 | 1 | SCIE | MICROBIOLOGY | 2022 | 2.8 | 67.0 | 0.17 | 2025-06-25 | 2 | 2 | Kaistella soli sp; nov; Oil-contaminated soil; Weeksellaceae; Whole genome sequence; Phylogeny | CHRYSEOBACTERIUM-HAIFENSE; GEN. NOV.; RNA; ALGORITHM; KOREENSIS; SEQUENCES; TREE | Kaistella soli sp. nov; Oil-contaminated soil; Phylogeny; Weeksellaceae; Whole genome sequence | Bacterial Typing Techniques; DNA, Bacterial; Fatty Acids; Phylogeny; RNA, Ribosomal, 16S; Sequence Analysis, DNA; Soil; Soil Microbiology; bacterial DNA; catalase; fatty acid; menaquinone; nucleotide; oxidoreductase; phosphatidylethanolamine; RNA 16S; sodium chloride; bacterial DNA; fatty acid; RNA 16S; aerobic bacterium; Article; bacterial growth; bacterial strain; bacterium culture; bacterium isolation; chemotaxonomy; concentration (parameter); DNA base composition; DNA DNA hybridization; gene sequence; Gram negative bacterium; Kaistella haifensis; Kaistella soli; nonhuman; nucleotide sequence; phylogeny; soil pollution; taxonomic identification; temperature; type strain; bacterium identification; DNA sequence; genetics; microbiology; soil | English | 2022 | 2022-01 | 10.1007/s00203-021-02734-4 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Larkinella humicola sp. nov., a gamma radiation-resistant bacterium isolated from soil | A Gram-negative, short rod-shaped, and pink-pigmented bacterial strain, designated MA1(T), was isolated from a soil sample from Gijang-gun, Busan in Republic of Korea. The 16S rRNA gene sequence analysis showed that strain MA1(T) belonged to the genus Larkinella and was closely related to "Larkinella punicea" (97.5% similarity), Larkinella rosea 15J16-1T3A(T) (96.5%), and Larkinella knui 15J6-3T6(T) (96.2%). Polar lipid profile of strain MA1(T) contained phosphatidylethanolamine, two unidentified aminolipids, and three unidentified lipids. Menaquinone-7 was the only quinone and the main fatty acids were C-16:1 omega 5c (36.7%), iso-C-15:0 (30.0%), iso-C-17:0 3-OH (7.7%), and summed feature 3 (C-16:1 omega 6c and/or C-16:1 omega 7c and/or iso-C-15:0 2-OH) (7.3%). The genomic DNA G + C content was 52.3 mol% based on the whole-genome analysis. Strain MA1(T) exhibited a relatively low level of ANI and in silico DDH values with "Larkinella punicea" (91.9 and 47.1%, respectively), Larkinella rosea (79.7 and 23.3%), and Larkinella knui(81.9 and 25.7%). Based on its phenotypic properties and phylogenetic distinctiveness, strain MA1(T) should be classified in the genus Larkinella as a representative of a novel species, for which the name Larkinella humicola sp. nov. is proposed. The type strain is MA1(T) (= KCTC 72629(T) = NBRC 114191(T)). | Park, Yuna; Ten, Leonid N.; Lee, Young Koung; Jung, Hee-Young; Kim, Myung Kyum | Seoul Womens Univ, Coll Nat Sci, Dept Bio & Environm Technol, Seoul 01797, South Korea; Kyungpook Natl Univ, Sch Appl Biosci, Daegu 41566, South Korea; Korea Inst Fus Energy, Inst Plasma Technol, 37 Dongjangsan Ro, Gunsan 54004, Jeollabuk, South Korea; Kyungpook Natl Univ, Inst Plant Med, Daegu 41566, South Korea | Ten, Leonid/P-7941-2014; Kim, Jung Oh/JDC-5061-2023 | 57218269322; 6603039265; 57138625900; 7403029383; 35080583500 | heeyoung@knu.ac.kr;biotech@swu.ac.kr; | ARCHIVES OF MICROBIOLOGY | ARCH MICROBIOL | 0302-8933 | 1432-072X | 204 | 3 | SCIE | MICROBIOLOGY | 2022 | 2.8 | 67.0 | 0.09 | 2025-06-25 | 2 | 1 | Larkinella; Bacteroidetes; Soil bacteria | COMPLETE GENOME SEQUENCE; KNUI SP NOV. | Bacteroidetes; Larkinella; Soil bacteria | Bacterial Typing Techniques; DNA, Bacterial; Fatty Acids; Gamma Rays; Phylogeny; RNA, Ribosomal, 16S; Sequence Analysis, DNA; Soil; Soil Microbiology; farnoquinone; fatty acid; genomic DNA; lipid; phosphatidylethanolamine; quinone derivative; RNA 16S; bacterial DNA; fatty acid; RNA 16S; Article; bacterial strain; bacterium isolate; bacterium isolation; chemotaxonomy; computer model; DNA base composition; gamma radiation; gene sequence; genome analysis; genus; Gram negative bacterium; Larkinella humicola; Larkinella punicea; Larkinella rosea; lipid fingerprinting; nonhuman; sequence analysis; soil microflora; South Korea; type strain; bacterium identification; DNA sequence; gamma radiation; genetics; microbiology; phylogeny; soil | English | 2022 | 2022-03 | 10.1007/s00203-022-02790-4 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Safety evaluation and anti-inflammatory activity of Lactobacillus johnsonii IDCC 9203 isolated from feces of breast-fed infants | This study evaluated the safety of Lactobacillus johnsonii IDCC 9203 and investigated its anti-inflammatory activity in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Genomic analysis revealed that this strain has no virulence and antibiotic resistance gene except tetW, which is a tetracycline resistance gene. Minimum inhibitory concentration data showed that the strain is resistant to tetracycline and aminoglycosides. Further analysis indicated that the transferability of the tetW gene is extremely low, and resistance to aminoglycosides is due to the intrinsic resistance of L. johnsonii IDCC 9203. Phenotypic safety assessment showed that the strain has neither beta-hemolytic nor beta-glucuronidase activity, and no biogenic amine production. When LPS-induced RAW 264.7 cells were treated with L. johnsonii IDCC 9203, the level of nitric oxide and expression of pro-inflammatory cytokines significantly decreased (p < 0.05). Therefore, L. johnsonii IDCC 9203 strain is considered as safe and beneficial probiotic for human consumption. | Adedeji, Olajide Emmanuel; Chae, Seung A.; Ban, O-Hyun; Bang, Won Yeong; Kim, Hayoung; Jeon, Hyeon Ji; Chinma, Chiemela Enyinnaya; Yang, Jungwoo; Jung, Young Hoon | Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; Fed Univ Wukari, Dept Food Sci & Technol, PMB 1020, Wukari, Nigeria; Ildong Biosci, Pyeongtaek Si 17957, Gyeonggi Do, South Korea; Fed Univ Technol Minna, Dept Food Sci & Technol, PMB 65, Minna, Nigeria; Univ Johannesburg, Dept Biotechnol & Food Technol, POB 17011,Doornfontein Campus, Gauteng, South Africa | Adedeji, Olajide/GYU-3066-2022; Jeon, Hyeon Ji/HPH-4892-2023; Jung, Young Hoon/F-1703-2013 | 57202229091; 57219223373; 57219226382; 57208701768; 57451681800; 57795638700; 16038622800; 56076383700; 55550063700 | adedeji@fuwukari.edu.ng;seunga@ildong.com;ohb@ildong.com;yeong0417@ildong.com;young@ildong.com;z9658502@naver.com;chinmachiemela@futminna.edu.ng;yjw@ildong.com;younghoonjung@knu.ac.kr; | ARCHIVES OF MICROBIOLOGY | ARCH MICROBIOL | 0302-8933 | 1432-072X | 204 | 8 | SCIE | MICROBIOLOGY | 2022 | 2.8 | 67.0 | 0.44 | 2025-06-25 | 2 | 5 | Anti-inflammatory activity; Lactic acid bacteria; Lactobacillus johnsonii; Probiotics; Safety evaluation | NF-KAPPA-B; ANTIBIOTIC-RESISTANCE | Anti-inflammatory activity; Lactic acid bacteria; Lactobacillus johnsonii; Probiotics; Safety evaluation | Aminoglycosides; Anti-Bacterial Agents; Anti-Inflammatory Agents; Feces; Female; Humans; Infant; Lactobacillus; Lactobacillus johnsonii; Lipopolysaccharides; aminoglycoside antibiotic agent; ampicillin; antiinflammatory agent; biogenic amine; chloramphenicol; clindamycin; cytokine; erythromycin; gentamicin; kanamycin; lipopolysaccharide; nitric oxide; probiotic agent; streptomycin; tetracycline; vancomycin; aminoglycoside; antiinfective agent; antiinflammatory agent; animal experiment; animal model; animal tissue; antibiotic resistance; antibiotic sensitivity; antiinflammatory activity; Article; bacterial gene; bacterial strain; bacterium isolation; controlled study; drug safety; feces; female; genetic analysis; genome analysis; human; human cell; infant; Lactobacillus johnsonii; major clinical study; minimum inhibitory concentration; nonhuman; protein expression; RAW 264.7 cell line; tetracycline resistance; feces; genetics; Lactobacillus | English | 2022 | 2022-08 | 10.1007/s00203-022-03097-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | A Dual Difference Method for Identification of the Inherent Spindle Axis Parallelism Errors of Machine Tools | It is essential to identify spindle axis parallelism errors because such errors trigger volumetric errors when tools of different lengths are used. However, only a few works have addressed this issue. Thus, we identified the inherent spindle axis parallelism errors of machine tools relative to the end-point reference straight line of the Z-axis (according to ISO 230-1) using a dual difference method. Here, "inherent" refers to parallelism errors of the spindle axis that are not affected by the geometric errors of other axes controlled during the measurements, and "dual difference" refers to the difference in the differences of measuring data. The dual difference method uses two pairs of circular tests performed with the aid of a double ball-bar (DBB); the tool lengths differ during each test and the DBB set-up is shared by the pairs. Parallelism errors are then identified based on the dual differences within and between the two pairs. Experimentally, the maximum peak-to-valley (PV) values were 54.5 and 48.7 mu m for differences in radial deviations within the two pairs when the parallelism errors were not compensated. After tool-center-point compensation by the identified errors, the PV values improved to 8.0 and 9.2 mu m, respectively, showing that compensation was successful. In addition, the concentricity of two holes machined using tools of different lengths improved from 31.2 mu m without compensation to 15.9 mu m with compensation, further demonstrating the effectiveness of the method. | Yang, Seung-Han; Lee, Kwang-Il | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kyungil Univ, Sch Mech & Automot Engn, 50 Gamasil Gil, Gyongsan 38428, Gyeongbuk, South Korea | 8407949900; 57196250383 | syang@knu.ac.kr;kilee@kiu.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 23 | 6 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2022 | 1.9 | 67.3 | 0.39 | 2025-06-25 | 5 | 5 | Circular test; Dual difference method; Machine tools; Parallelism errors; Spindle axis | INDEPENDENT GEOMETRIC ERRORS | Circular test; Dual difference method; Machine tools; Parallelism errors; Spindle axis | Machine tools; Circular tests; Difference method; Double ball bar; Dual difference method; End-points; Geometric errors; Parallelism error; Peak to valley value; Spindle axis; Volumetric errors; Errors | English | 2022 | 2022-06 | 10.1007/s12541-022-00653-y | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effects of anxiety on sedation among pediatric patients undergoing esophagogastroduodenoscopy | We investigated whether the severity of anxiety among children undergoing endoscopy could affect sedation. We prospectively recruited patients under 18 years of age who were scheduled to undergo esophagogastroduodenoscopy (EGD). Baseline anxiety was evaluated using the Spence Children's Anxiety Scale (SCAS). Our analysis considered the type and dose of sedative drugs, degree of sedation, and complications associated with sedation according to the scale score. The mean total SCAS T-scores and each subscale score were significantly higher in the 6-12-year age group. The mean T-score among patients who exhibited irritability during EGD was higher than that among other patients, with significant differences in the Total, Obsessive Disorder, Panic Agoraphobia and General Anxiety subscales. The midazolam doses of children exhibiting irritability were more likely to need higher (p = 0.006). Other sedation-related complications were not associated with the T-scores in each subscale. Total sleep time was not associated with any T-score subscales. Anxiety levels were significantly higher among 6-12-year-olds and children exhibiting irritability. Anxiety was often associated with irritability, difficulties achieving adequate sedation during EGD, and additional sedative drug administration. We recommend higher doses or more potent drugs to facilitate endoscopy for children with high anxiety levels. | Choi, You Jin; Park, Eun Jin; Lee, Yoo Min; Kim, Soon Chul; Kang, Ben; Lee, Kyung Jae; Jang, Hyo-Jeong; Lee, Eun Hye; Kim, Ju Young; Choi, So Yoon; Kim, Hyan Jin; Kang, Yunkoo; Choe, Byung-Ho; Lee, Jeewon; Yi, Dae Yong | Inje Univ, Dept Pediat, Ilsan Paik Hosp, Gimhae, South Korea; Inje Univ, Coll Med, Gimhae, South Korea; Inje Univ, Dept Psychiat, Ilsan Paik Hosp, Gimhae, South Korea; Soonchunhyang Univ, Dept Pediat, Bucheon Hosp, Asan, South Korea; Soonchunhyang Univ, Coll Med, Asan, South Korea; Jeonbuk Natl Univ, Dept Pediat, Med Sch, Jeonju, South Korea; Jeonbuk Natl Univ Hosp, Jeonju, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pediat, Daegu, South Korea; Hallym Univ, Dept Pediat, Sacred Heart Hosp, Chunchon, South Korea; Hallym Univ, Coll Med, Chunchon, South Korea; Keimyung Univ, Dept Pediat, Sch Med, Dongsan Med Ctr, Daegu, South Korea; Nowon Eulji Med Ctr, Dept Pediat, Seoul, South Korea; Eulji Univ, Sch Med, Daejeon, South Korea; Eulji Univ Hosp, Dept Pediat, Daejeon, South Korea; Kosin Univ, Dept Pediat, Gospel Hosp, Busan, South Korea; Kosin Univ, Coll Med, Busan, South Korea; Chungnam Natl Univ Hosp, Dept Pediat, Daejeon, South Korea; Yonsei Univ, Dept Pediat, Wonju Coll Med, Seoul, South Korea; Soonchunhyang Univ, Dept Neuropsychiat, Bucheon Hosp, Asan, South Korea; Chung Ang Univ Hosp, Dept Pediat, Seoul, South Korea; Chung Ang Univ, Coll Med, Seoul, South Korea | Kim, Siwon/KHX-9078-2024; Lee, Yong Jae/GLR-4153-2022; Choe, Byung-Ho/KSM-6251-2024; Yi, Dae/G-1729-2014; 康, 奔/JMQ-0812-2023; lee, dong/I-9385-2017; Lee, Jun/G-5089-2012; Kim, Juhee/KFS-3069-2024 | 56063619400; 58304774100; 55588928200; 36087407700; 57194823199; 57022460500; 55355948500; 57188855950; 57202996384; 57207282105; 57671591800; 55607051000; 57574977300; 57204726207; 57190851975 | meltemp2@hanmail.net; | CLINICAL CHILD PSYCHOLOGY AND PSYCHIATRY | CLIN CHILD PSYCHOL P | 1359-1045 | 1461-7021 | 27 | 3 | SCIE;SSCI | PSYCHIATRY;PSYCHOLOGY, CLINICAL;PSYCHOLOGY, DEVELOPMENTAL;PSYCHOLOGY | 2022 | 1.8 | 67.3 | 0.75 | 2025-06-25 | 4 | 5 | Endoscopy; pediatric patients; anesthesia; anxiety | DISORDERS; ENDOSCOPY; PROPOFOL; SCALE | anesthesia; anxiety; Endoscopy; pediatric patients | Adolescent; Anxiety; Anxiety Disorders; Child; Endoscopy, Digestive System; Humans; Hypnotics and Sedatives; Midazolam; hypnotic sedative agent; midazolam; adolescent; adverse event; anxiety; anxiety disorder; child; digestive tract endoscopy; human | English | 2022 | 2022-07 | 10.1177/13591045221096308 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Ginger-derived compounds exert in vivo and in vitro anti-asthmatic effects by inhibiting the T-helper 2 cell-mediated allergic response | 6-Shogaol (SHO) and 6-gingerol (GIN), naturally derived compounds of ginger (Zingiber officinale Roscoe), have been found to have anti-allergic effects on dermatitis-like skin lesions and rhinitis. Although SHO and GIN have demonstrated a potential in various inflammatory diseases, their efficacy and mechanism in asthma have not been largely examined. Therefore, the present study demonstrated the anti-asthmatic effects of SHO and GIN on the T-helper (Th) 2 cell-mediated allergic response pathway in an ovalbumin (OVA)-induced asthma mouse model. The asthma mouse model was established with an intraperitoneal (i.p.) injection of 50 mu g OVA and 1 mg aluminum hydroxide with or without an i.p. injection of SHO and GIN (10 mg/kg) before treatment with OVA. In addition, the current study assessed mast cell degranulation in antigen-stimulated RBL-2H3 cells under different treatment conditions (SHO or GIN at 0, 10, 25, 50 and 100 nM) and determined the mRNA and protein levels of anti-oxidative enzymes [superoxide dismutase (SOD)1, SOD2, glutathione peroxidase-1/2, catalase] in lung tissues. SHO and GIN inhibited eosinophilia in the bronchoalveolar lavage fluids and H&E-stained lung tissues. Both factors also decreased mucus production in periodic acid-Schiff-stained lung tissues and the levels of Th2 cytokines in these tissues. GIN attenuated oxidative stress by upregulating the expression levels of anti-oxidative proteins. In an in vitro experiment, the degranulation of RBL-2H3 rat mast cells was significantly decreased. It was found that SHO and GIN effectively suppressed the allergic response in the mouse model by inhibiting eosinophilia and Th2 cytokine production. Collectively, it was suggested that SHO can inhibit lung inflammation by attenuating the Th2 cell-mediated allergic response signals, and that GIN can inhibit lung inflammation and epithelial cell remodeling by repressing oxidative stress. Therefore, SHO and GIN could be used therapeutically for allergic and eosinophilic asthma. | Kim, Eungyung; Jang, Soyoung; Yi, Jun Koo; Kim, Hyeonjin; Kwon, Hong Ju; Im, Hobin; Huang, Hai; Zhang, Haibo; Cho, Na Eun; Sung, Yonghun; Kim, Sung-Hyun; Choi, Yeon Shik; Li, Shengqing; Ryoo, Zae Young; Kim, Myoung Ok | Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Bldg 6,2559 Gyeongsang Daero Rd, Sangju 37224, Gyeongsangbuk, South Korea; Kyungpook Natl Univ, BK21 Plus KNU Creat Biores Grp, Sch Life Sci, 80 Daehak Ro Rd, Daegu 41566, South Korea; Gyeongsangbukdo Livestock Res Inst, Yeongju 36052, Gyeongsang, South Korea; Daegu Gyeongbuk Med Innovat Fdn, Lab Anim Ctr, Daegu 41061, South Korea; Korea Polytech Coll, Dept Biomed Anal, Nonsan 32943, Chungcheongnam, South Korea; Fudan Univ, Huashan Hosp, Dept Pulm & Crit Care Med, Shanghai 200040, Peoples R China | RYOO, ZAEYOUNG/AAQ-1573-2020; Yi, Junkoo/JBR-8507-2023 | jaewoong64@hanmail.net;ok4325@knu.ac.kr; | EXPERIMENTAL AND THERAPEUTIC MEDICINE | EXP THER MED | 1792-0981 | 1792-1015 | 23 | 1 | SCIE | MEDICINE, RESEARCH & EXPERIMENTAL | 2022 | 2.7 | 67.3 | 14 | asthma; ginger; allergy; lung inflammation; oxidative stress | OXIDATIVE STRESS; AIRWAY HYPERRESPONSIVENESS; GENE-EXPRESSION; ASTHMA; INFLAMMATION; CYTOKINES; 6-SHOGAOL; POLLUTION; MODEL; IL-4 | English | 2022 | 2022-01 | 10.3892/etm.2021.10971 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Mathematical Model to Predict the Moduli of Wet-Laid Pulp/Fiber/Resin Composite Materials | In this study, a new wet-laid composite material composed of an aramsid pulp, P-aramid fibers, M-aramid fibers, and a phenol resin has been fabricated to examine the applicability of transmission gears in weight and vibration reduction. Aramid pulps produced via fibrillation on the surface of P-aramid fibers are used to enhance the interfacial bonding between the fibers and resin. Mathematical models to predict the moduli of the wet-laid composite material and a specific relationship between the fibrils and matrix in pulps are additionally proposed. Based on the models, we analyze the variation in the moduli of the composites with two different fiber lengths, when the aramid pulp and P-aramid fiber mass fractions are varied. Moreover, four composite specimens with different phenol and aramid pulp contents (wt%) are fabricated and subjected to tensile tests. The model can well predict the tensile modulus within the error range of the test results. Based on a finite element analysis using the obtained moduli, the soaring out-of-plane stress components at a composite plate edge can be calculated accurately. | Kim, Cheol; Yun, Min-Gun; Kim, Sanghyeon; Jeon, Gil-Woo | Kyungpook Natl Univ, Dept Mech Engn, Daegu 41566, South Korea; Korea Text Dev Inst, Daegu 41842, South Korea | 55508786300; 57878482500; 57209797000; 54902725200 | kimchul@knu.ac.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 23 | 11 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2022 | 1.9 | 67.3 | 0.39 | 2025-06-25 | 6 | 6 | Wet-laid process; Pulp reinforcement; Elastic moduli; Inter-laminar stress; Fiber fibrillation | Elastic moduli; Fiber fibrillation; Inter-laminar stress; Pulp reinforcement; Wet-laid process | Aramid fibers; Composite materials; Fiber bonding; Forecasting; Natural fibers; Phenols; Resins; Tensile testing; Textile fibers; Vibrations (mechanical); Composites material; Fiber fibrillation; Inter-laminar stress; M-aramid fibers; Phenol resin; Pulp fibers; Pulp reinforcement; Resin-composites; Transmission gear; Wet-laid process; Elastic moduli | English | 2022 | 2022-11 | 10.1007/s12541-022-00700-8 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Short-term clinical outcomes of onasemnogene abeparvovec treatment for spinal muscular atrophy | Introduction: Spinal muscular atrophy (SMA) is a degenerative neuromuscular disorder long recognized as the most common genetic cause of infantile mortality described so far. However, the emergence of some innovative therapies, such as nusinersen and onasemnogene abeparvovec (AVXS-101), have made it possible to change the disease course of SMA.Methods: In this study, five SMA type 1 and one SMA type 2 patients who received AVXS-101 were enrolled (7-24 months of age when administered). They were all previously treated with nusinersen, 4-5 times including loading doses, but stopped nusinersen maintenance after injection of AVXS-101. Patients were regularly followed up with laboratory tests and functional assessments after administration. Results: Liver enzymes (aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyl transferase) and monocyte count tended to be elevated but normalized after several weeks. Platelets and white blood cells were transiently decreased for a few weeks after injection. Prolonged elevation of liver enzymes was associated with steroid tapering earlier than 1 month post treatment. During the follow-up period (ranging from 5 to 17 months after injection), all patients showed improved motor function and there was no case of mortality or requirement for permanent ventilatory support. For one patient, use of bilevel positive airway pressure could be reduced from 16 h to 8 h a day during sleep at 6 months post treatment.Conclusion: Our experience of AVXS-101 treatment has shown that a single intravenous dose could be safe and effective for SMA patients without the need for any maintenance treatment. (c) 2022 The Japanese Society of Child Neurology. Published by Elsevier B.V. | Lee, Seungbok; Lee, Yun Jeong; Kong, Juhyun; Ryu, Hye Won; Shim, Young Kyu; Han, Ji Yeon; Woo, Hyewon; Kim, Soo Yeon; Cho, Anna; Lim, Byung Chan; Chae, Jong Hee | Seoul Natl Univ, Childrens Hosp, Coll Med, Dept Pediat, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pediat, Daegu, South Korea; Kyungpook Natl Univ Hosp, Daegu, South Korea; Pusan Natl Univ, Childrens Hosp, Sch Med, Dept Pediat, Yangsan, South Korea; Korea Univ, Dept Pediat, Ansan Hosp, Ansan, South Korea; Seoul Natl Univ Hosp, Rare Dis Ctr, Seoul, South Korea; Seoul Natl Univ, Dept Pediat, Bundang Hosp, Seongnam, South Korea | Woo, Hyewon/KOD-6614-2024; Kim, Siwon/KHX-9078-2024; Chae, Jong/J-5683-2012; Lee, Eun/J-5594-2012 | 57203597141; 55978748900; 57203547871; 55133125100; 57205656646; 57193320849; 57297897900; 57191544930; 56655964000; 7201984041; 16241023700 | chaeped1@snu.ac.kr; | BRAIN & DEVELOPMENT | BRAIN DEV-JPN | 0387-7604 | 1872-7131 | 44 | 4 | SCIE | CLINICAL NEUROLOGY;PEDIATRICS | 2022 | 1.7 | 67.3 | 1.94 | 2025-06-25 | 14 | 14 | Spinal muscular atrophy; Onasemnogene abeparvovec; AVXS-101; Gene replacement therapy | ADENOASSOCIATED VIRUS VECTOR; GENE-THERAPY; SINGLE-ARM; OPEN-LABEL; MULTICENTER; NUSINERSEN | AVXS-101; Gene replacement therapy; Onasemnogene abeparvovec; Spinal muscular atrophy | Biological Products; Child, Preschool; Female; Humans; Infant; Male; Outcome Assessment, Health Care; Recombinant Fusion Proteins; Spinal Muscular Atrophies of Childhood; alanine aminotransferase; aspartate aminotransferase; gamma glutamyltransferase; nusinersen; onasemnogene abeparvovec; prednisolone; biological product; fusion protein; onasemnogene abeparvovec; Article; bilevel positive airway pressure; Bocavirus infection; child; clinical article; clinical outcome; controlled study; drug dose reduction; drug efficacy; drug megadose; drug safety; drug substitution; dyspnea; enteric feeding; female; fever; follow up; functional assessment; functional status; human; hypertransaminasemia; infant; laboratory test; leukopenia; liver function test; loading drug dose; male; monocyte count; motor performance; pneumonia; preschool child; Rhinovirus infection; single drug dose; sleep; South Korean; spinal muscular atrophy type 2; thrombocytopenia; vomiting; Werdnig Hoffmann disease; hereditary spinal muscular atrophy | English | 2022 | 2022-04 | 10.1016/j.braindev.2021.12.006 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Use of a Virtual Polyhedron for Interim Checking of the Volumetric and Geometric Errors of Machine Tools | Volumetric and geometric errors should be periodically checked to ensure that the accuracy of machine tools remains within the tolerable range. However, existing methods require complex devices, and are thus unsuitable for cost-effective interim error checks. We present a simple, rapid and cost-effective method for interim error checks. The measurement paths are constructed using a virtual polyhedron; volumetric errors are checked by calculating the coordinates of the vertices using the measured side lengths. The tool is sequentially moved to each vertex, and the side lengths are measured using a double ball-bar. As the virtual polyhedron is composed of virtual regular tetrahedrons, the relationships between the coordinates of the vertices and side lengths are unique. Linear scale and squareness errors are measured using an error synthesis model with a least-squares approach. The method was applied to a real machine tool, and performance was verified by confirming that the maximum L-2 norm of volumetric error is improved from 57.6 to 32.8 mu m after compensating for the measured geometric errors. Thus, the validity of the proposed method was confirmed by an improvement of 43% in volumetric error. The measurement results were confirmed by the circular tests of ISO 230-4; the peak-to-valley radial deviation improved from 16.0 to 11.2 mu m after compensation, and the proposed method contributed to a 30% improvement in the radial deviation. | Lee, Kwang-Il; Jeon, Heung-Ki; Lee, Jae-Chang; Yang, Seung-Han | Kyungil Univ, Sch Mech & Automot Engn, 50 Gamasil Gil, Gyongsan 38428, Gyeongbuk, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea; Yeungnam Univ Coll, Div Mech Engn Technol, 170 Hyeonchung Ro, Daegu 42415, South Korea | 57196250383; 57848660300; 55260415200; 8407949900 | kilee@kiu.kr;mailgmdr1523@knu.ac.kr;jclee@ync.ac.kr;syang@knu.ac.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 23 | 10 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2022 | 1.9 | 67.3 | 0.31 | 2025-06-25 | 4 | 4 | Geometric error; Interim check; Machine tools; Virtual polyhedron; Volumetric error | BALL-BAR; COMPENSATION; AXES | Geometric error; Interim check; Machine tools; Virtual polyhedron; Volumetric error | Cost effectiveness; Errors; Geometry; Complex devices; Cost effective; Cost-effective methods; Error checks; Geometric errors; Interim check; Side length; Simple++; Virtual polyhedra; Volumetric errors; Machine tools | English | 2022 | 2022-10 | 10.1007/s12541-022-00666-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | User Intention Based Intuitive Mobile Platform Control: Application to a Patient Transfer Robot | This study proposes a user's intuitive intention-based control system for mobile robot platforms. As an application of the control scheme, we focused on a robot that transports patients in medical facilities. However, since most of the people who operate the patient transfer robot (PTR) are not robotics experts, an intuitive control method is needed to enable easy operation of the robot system. Also minimizing the discomfort experienced by the patient in the process of transferring the patient through the patient transfer robot is another important issue to consider. Therefore, the main contributions of this are developing an intuitive user interface and proposing a sway reduction control scheme. To accomplish the first issue, the intuitive control is implemented by proposing a robot control interface, where four force-sensing resistor (FSR) sensors are installed on a robot's handle (where a user holds a robot). Through this, the robot can be easily moved with only a simple and intuitive operation of the user. Therefore forward, backward, left movement, right movement, left turn, and right turn operation can be controlled through the intuitive movement of the user input through the developed user interface. Additionally, in order to satisfy the second requirement, the patient's sway reduction strategy is suggested by applying fuzzy logic-based control command generation method to the user intention. Through this method, the sway that occurs during the movement of the robot is reduced. In this study, the mecanum wheel was applied to the driving platform of the patient transfer robot to enable omnidirectional movement. The performance of the proposed control method is verified through simulations and experiments. Simulation and experimental results confirm that the proposed method reduced the acceleration and jerk root mean square values of the robot compared to a comparison method. | Park, Jaewoo; An, Bohyun; Kwon, Ohwon; Yi, Hak; Kim, Changwon | Kyungpook Natl Univ, Dept Mech Engn, Daegu 41566, South Korea; Korea Inst Machinery & Mat, Daegu Res Ctr Med Devices & Rehabil, Daegu 42994, South Korea; Pukyong Natl Univ, Dept Mech Design Engn, Busan 48513, South Korea | 57669737200; 57216877040; 57026875700; 56567311000; 57199972728 | yihak@knu.ac.kr;ckim@pknu.ac.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 23 | 6 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2022 | 1.9 | 67.3 | 0.86 | 2025-06-25 | 10 | 11 | User intention-based control; Intuitive robot control; Fuzzy logic; Mecanum wheel robot; Human-robot interaction | Fuzzy logic; Human–robot interaction; Intuitive robot control; Mecanum wheel robot; User intention-based control | Computer circuits; Human robot interaction; Simulation platform; User interfaces; Wheels; Fuzzy-Logic; Humans-robot interactions; Intuitive robot control; Mecana wheel robot; Mecanum wheels; Patient transfer; Robots control; User intention-based control; User's intentions; Wheel robots; Fuzzy logic | English | 2022 | 2022-06 | 10.1007/s12541-022-00656-9 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Analysis of Tensile Deformation Behavior of Rolled AZ31 Mg Alloy Subjected to Precompression and Subsequent Annealing Using DIC | This study investigates the effects of precompression and subsequent annealing on the tensile deformation behavior of a rolled AZ31 Mg alloy at room temperature using digital image correlation (DIC). When the as-rolled sample (AR sample) is subjected to precompresssion along the rolling direction (RD) and transverse direction (TD), the sample's texture changes from the typical normal direction (ND)-oriented basal texture to the RD-and TD-oriented basal textures, respectively, because of the lattice reorientation by {10-12} twinning. During tension along the RD, the AR sample and the sample precompressed along the TD and subsequently annealed at 250 ? (TDCA sample) accomodate the tensile strain via dislocation slip, resulting in high yield strengths and slip-dominant strain-hardening behaviors. In contrast, the sample precompressed along the RD and subsequently annealed at 250 ? (RDCA sample) exhibits a low yield strength and twinning -dominant strain-hardening behavior, owing to the vigorous activation of {10-12} twinning during tension. DIC results reveal that in the AR sample, noticeable strain localization occurs at an early stage of tensile deformation due to the difficulty of accommodating strain along the thickness direction. In the RDCA sample, strain distribution is relatively homogeneous via {10-12} twinning, but the rapid strain hardening caused by abundant {10-12} twins causes premature crack initiation. Because the basal planes of most grains of the TDCA sample are aligned parallel to the thickness direction, the thickness strain is effectively accommodated via prismatic slip, resulting in the highest tensile elongation among the three samples. | Lee, Gyo Myeong; Kim, Jung Eun; Park, Sung Hyuk | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | Park, Sung-Hyuk/AAE-6726-2022 | 57222810183; 57968306900; 54786002500 | sh.park@knu.ac.kr; | KOREAN JOURNAL OF METALS AND MATERIALS | KOREAN J MET MATER | 1738-8228 | 60 | 9 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2022 | 1.2 | 67.7 | 0.37 | 2025-06-25 | 4 | 4 | magnesium alloy; tension; dislocation slip; twinning; digital image correlation (DIC) | ENHANCED STRETCH FORMABILITY; STRAIN-HARDENING BEHAVIOR; MAGNESIUM ALLOY; MG-3AL-1ZN ALLOY; TEXTURE; IMPROVEMENT; ANISOTROPY; EVOLUTION; SLIP | digital image correlation (DIC); dislocation slip; magnesium alloy; tension; twinning | Annealing; Deformation; Magnesium alloys; Strain hardening; Strain measurement; Tensile strain; Tensile strength; Twinning; Yield stress; AZ31 Mg alloys; Basal textures; Deformation behavior; Digital image correlation; Digital image correlations; Dislocation slip; Pre-compression; Rolling direction; Tensile deformation; Tension; Image correlation | Korean | 2022 | 2022-09 | 10.3365/kjmm.2022.60.9.701 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of Substitution on Magnetic Moments of Iron and Chromium Atoms in MAX Phases of Type (Cr4- xFex)0.5SiC: Theoretical Calculation | MAX phases are a family of ternary layered compounds with formal stoichiometry M(2)AX and have a layered hexagonal structure. Calculations with the B3LYP density functional show that, by varying the ratio between the chromium and iron in the MAX phase (Cr4 - xFex)(0.5)SiC, it is possible to change the lattice parameters and the magnetic moment on metal atoms. In this phase, a partial substitution of one metal for the other can be considered a technique of intended variation of their magnetic properties. | Tomilin, F. N.; Shubin, A. A.; Kozak, V. V.; Ivanova, D. A.; Fedorova, N. A.; Ol'shevskaya, Yu. S.; Kovaleva, A., V; Avramov, P., V; Ovchinnikov, S. G. | Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia; Kyungpook Natl Univ, Daegu, Gyeongbuk Provi, South Korea | ; Tomilin, Felix/F-3763-2014; Kozak, Victoria/HMP-4669-2023; Ovchinnikov, Sergei/GXF-4864-2022; Shubin, Aleksandr/J-7025-2012 | 6602246772; 57201082401; 57904219000; 57222540909; 57903802100; 57903802200; 57904008500; 7004322420; 14122071800 | felixnt@gmail.com; | PHYSICS OF METALS AND METALLOGRAPHY | PHYS MET METALLOGR+ | 0031-918X | 1555-6190 | 123 | 7 | SCIE | METALLURGY & METALLURGICAL ENGINEERING | 2022 | 1.2 | 67.7 | 0.19 | 2025-06-25 | 2 | 2 | theory of density functional; MAX phases; substitution effect | STABILITY; CERAMICS; CR; TI | MAX phases; substitution effect; theory of density functional | Chromium; Density functional theory; Iron; Silicon; B3LYP density functional; Density functionals; Effect of substitution; Hexagonal structures; Layered compound; MAX-phase; Metal atoms; Substitution effect; Theoretical calculations; Theory of density functional; Magnetic moments | English | 2022 | 2022-07 | 10.1134/s0031918x22070195 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Effects of Blended Poly(3-hexylthiophene) and 6,13-bis(triisopropylsilylethynyl) pentacene Organic Semiconductors on the Photoresponse Characteristics of Thin-Film Transistors | In this study, we demonstrate high-performance optical wavelength-selective organic thin-film transistors (TFTs) that incorporate heterogeneous organic semiconductor materials, poly(3-hexylthiophene) (P3HT) and 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene). The electrical characteristics of the fabricated transistors were analyzed in the dark to determine how the P3HT:TIPS-pentacene ratio of the semiconductor affected the performance of the transistor. Specifically, the P3HT:TIPS-pentacene weight ratio was varied (1:0, 1:0.25, 1:0.5, 1:0.75, 1:1, and 0:1) by blending 1 wt% P3HT dissolved in chloroform, and 1 wt% TIPS-pentacene dissolved in anisole. The UV-visible light absorbance characteristics of the films containing the P3HT, TIPS-pentacene, and P3HT:TIPS-pentacene blends were analyzed. Monochromatic light at wavelengths of 515 and 450 nm was used to clarify the influence of irradiation on the electrical characteristics of the TFTs. The results confirmed that the TFT containing P3HT:TIPS-pentacene at a blending ratio of 1:0.5 had the largest light-to-dark current ratio, i.e., approximately 33.8 and 23.5 when exposed to monochromatic light at wavelengths of 515 nm and 450 nm, respectively. The TFT with the P3HT:TIPS-pentacene blending ratio of 1:0.5 exhibited the highest photosensitivity values of 261.9 and 49.6 upon irradiation with light at wavelengths of 515 nm and 450 nm, respectively. The observed improvement in the performance of the heterogeneously blended organic transistors is discussed in relation to the morphological structure and charge transport path of the P3HT:TIPS-pentacene blended semiconductor films. | Shin, Hyunji; Lee, Hyeonju; Kim, Bokyung; Zhang, Xue; Bae, Jin-Hyuk; Park, Jaehoon | Inha Univ, Dept Elect & Comp Engn, Incheon 22212, South Korea; Hallym Univ, Dept Elect Engn, Chunchon 24252, South Korea; Shangdong Univ Sci & Technol, Coll Ocean Sci & Engn, Qingdao 266590, Peoples R China; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 56289655800; 57040032800; 57210471966; 55949859900; 35326180700; 55717156300 | jhbae@ee.knu.ac.kr;jaypark@hallym.ac.kr; | KOREAN JOURNAL OF METALS AND MATERIALS | KOREAN J MET MATER | 1738-8228 | 60 | 3 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2022 | 1.2 | 67.7 | 0.28 | 2025-06-25 | 3 | 3 | organic semiconductor; P3HT; TIPS-Pentacene; thin-film transistor; phototransistor | Organic semiconductor; P3HT; Phototransistor; Thin-film transistor; TIPS-Pentacene | Blending; Chlorine compounds; Field effect transistors; Irradiation; Light; Phototransistors; Thin film circuits; Thin films; Blending ratio; C. thin film transistor (TFT); Electrical characteristic; Monochromatic light; Pentacenes; Performance; Photoresponse characteristics; Poly (3-hexylthiophene); Poly(3-hexylthiophene); TIPS-pentacene; Thin film transistors | English | 2022 | 2022-03 | 10.3365/kjmm.2022.60.3.198 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Enhanced High Temperature Oxidation Resistance of the Conventional Ti-48Al-2Nb-2Cr Alloy through Carbon Pack Cementation and Analysis of the Carbon Diffusion Path | gamma-TiAl alloys have attracted interest as lightweight materials for structural applications at temperatures below 800 degrees C. With recent improvements in microstrutural control of the gamma-TiAl alloys, resulting in excellent creep properties and high temperature strength, their use can be extended to temperatures higher than 800 degrees C. To increase their application temperature range, the oxidation resistance of gamma-TiAl alloys must be improved through alloy design or coating techniques. To improve the high temperature oxidation resistance of gamma-TiAl alloys, it is important to suppress the growth of TiO2 oxide by forming a dense coating layer to block oxygen atoms. In this study, we tried to improve the high temperature oxidation resistance of a conventional gamma-TiAl alloy, Ti-48Al-2Nb-2Cr (Ti 4822) using a pack cementation process, with carbon sources and activating materials, XRD and EDS analysis results for the surface products indicated the formation of coating layers comprising oxides and carbides including TiC, Al4C3, Ti2AlC, and Ti3AlC. Based upon the sequential formation of coating layers and phase diagrams, the diffusion path of the carbon during the pack cementation process is proposed. Also, detailed carburization and oxidation behaviors of the gamma-TiAl alloys in the temperature range of 800-1000 degrees C are discussed in terms of microstructural observations. Enhanced high temperature oxidation resistance was obtained in Ti-48Al2Nb-2Cr (Ti 4822) through a proper carbon pack cementation process. | Kim, Donghyeon; Choi, Kwangsu; Park, Joonsik; Yi, Seonghoon | Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; Hanbat Natl Univ, Dept Mat Sci & Engn, Daejeon 34158, South Korea | Yi, Seonghoon/HGC-6912-2022 | 57780824900; 57199499063; 15036510800; 14008383000 | yish@knu.ac.kr; | KOREAN JOURNAL OF METALS AND MATERIALS | KOREAN J MET MATER | 1738-8228 | 60 | 10 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2022 | 1.2 | 67.7 | 0.09 | 2025-06-25 | 1 | 1 | TiAl; carburizing; pack cementation; oxidation; diffusion path | carburizing; diffusion path; oxidation; pack cementation; TiAl | Aluminum alloys; Aluminum coatings; Aluminum compounds; Carbon; Cementing (shafts); Diffusion coatings; High strength alloys; Inorganic coatings; Niobium alloys; Oxidation resistance; Thermooxidation; Titanium carbide; Titanium dioxide; Carbon diffusion; Coating layer; Diffusion paths; High temperature oxidation resistance; Lightweight materials; Pack cementation; Pack cementation process; Structural applications; Temperature range; TiAl alloy; Titanium alloys | English | 2022 | 2022-10 | 10.3365/kjmm.2022.60.10.723 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Lithium Recovery from NCM Lithium Ion Battery by Carbonation Roasting Followed by Water Leaching | Lithium is a representative rare metal and ranks 32nd in abundance among elements in the earth's crust. Lithium is used in a variety of applications, including the production of organolithium compounds, as an alloying addition to aluminum and magnesium, and as the anode in rechargeable lithium ion batteries especially for electronic devices and electric vehicles. Today, lithium is an indispensable metal in our daily lives. It is important to recycle lithium from used lithium-ion batteries to prepare for lithium shortages and protect lithium resources. The active cathode material of a lithium ion battery contains other valuable metals including Ni, Co, and Mn. In this study, the effect of carbonation temperature on Li recovery from NCM (LiNixCoyMnzO2) powder as Li2CO3 was investigated. First, a carbonation roasting was performed to convert the Li in the NCM powder into Li2CO3 at various temperature using a thermo-gravimetric analyzer. The roasted cinder leached into the water to dissolve the Li2CO3. The results showed that in Ar gas atmosphere the NCM phase was decomposed into Li2O and Li1-xM1+xO2 phases and the weight decreased by 4.7%, but in a CO2 atmosphere Li2CO3 was formed, resulting in a 12.1% increase in weight. In the isothermal experiment, the weight and carbon concentration of cinder increased with temperature, and the Li ratio in the NCM gradually decreased. The NCM powder was able to react with CO2 above 853 K, while some nickel, cobalt and manganese were regenerated into different Li1-xM1+xO2 crystalline phases. The maximum Li recovery rate of 76% wsa achieved for 2 h carbonation roasting at 1073 K followed by water leaching, filtering and an evaporative crystallization process.(Received 29 March, 2022; Accepted 26 July, 2022) | Lee, Dae-Hyeon; Lee, So-Yeon; Lee, So-Yeong; Sohn, Ho-Sang | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | 57968208200; 41261679800; 57208210267; 7201426373 | sohn@knu.ac.kr; | KOREAN JOURNAL OF METALS AND MATERIALS | KOREAN J MET MATER | 1738-8228 | 60 | 10 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2022 | 1.2 | 67.7 | 0.28 | 2025-06-25 | 2 | 3 | lithium ion battery; recycling; carbonation; water leaching; lithium carbonate | carbonation; lithium carbonate; lithium ion battery; recycling; water leaching | Calcination; Carbon dioxide; Carbonation; Cathodes; Ions; Leaching; Lithium; Lithium compounds; Manganese compounds; Nickel compounds; Powder metals; Thermogravimetric analysis; Water recycling; Active cathode materials; Alloying additions; Daily lives; Earth's crust; Electronics devices; Lithium recoveries; Organolithium compounds; Rare metals; Rechargeable lithium ion battery; Water leaching; Lithium-ion batteries | English | 2022 | 2022-10 | 10.3365/kjmm.2022.60.10.744 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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