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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 | Visible light stimulated binary nanostructure and defect enriched TiO2-SnO2 for photocatalysis and antibacterial activity | This work brings the two large band gap semiconductors TiO2 and SnO2 into composite catalyst for the visible light photodegradation of methyl orange (MO) dye. In this scenario, different ratios of TiO2-SnO2 nanocomposites were synthesized via sol-gel and precipitation methods. The variable compositions (TS 5% and TS 10%) are applied for the photocatalytic studies to destroy MO dye. Moreover, to the best of our knowledge for the first time, TiO2-SnO2 was focused against staphylococcus aureus bacterium. | Gnanasekaran, Lalitha; Rajendran, Saravanan; Kumar, P. Senthil; Priya, A. K.; Gracia, F.; Habila, Mohamed A.; Saravanakumar, Karunamoorthy | Univ Tarapaca, Fac Ingn, Dept Ingn Mecan, Avda Gen Velasquez 1775, Arica, Chile; Sri Sivasubramaniya Nadar Coll Engn, Dept Chem Engn, Chennai 603110, Tamil Nadu, India; KPR Inst Engn & Technol, Dept Civil Engn, Coimbatore 641407, Tamil Nadu, India; Univ Chile, Dept Chem Engn Biotechnol & Mat, Beauchef 851,6th Floor, Santiago, Chile; King Saud Univ, Dept Chem, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea | ; Gnanasekaran, Lalitha/ADW-5913-2022; Senthil Kumar, P./D-1869-2012; AK, Priya/AAF-1084-2020; Gracia, Francisco/I-2145-2013; RAJENDRAN, Saravanan/J-3287-2014; Habila, Mohamed/AAJ-4830-2020; Karunamoorthy, Saravanakumar/Q-2005-2016 | 56650900600; 7004886581; 24074610000; 57226315795; 12139463800; 53877535400; 57223020778 | saravanan3.raj84@yahoo.in; | MATERIALS LETTERS | MATER LETT | 0167-577X | 1873-4979 | 316 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 3 | 42.8 | 1 | 2025-06-25 | 11 | 12 | Large band-gap; Catalyst; Visible light; Methyl orange; Bacterium | DEGRADATION; NANOPARTICLES | Bacterium; Catalyst; Large band-gap; Methyl orange; Visible light | Azo dyes; Bacteria; Catalysts; Citrus fruits; Light; Magnetic semiconductors; Photocatalytic activity; Precipitation (chemical); Sol-gels; Titanium dioxide; Anti-bacterial activity; Band-gap semiconductors; Composite catalysts; Large band; Large band-gap; Methyl Orange; Methyl orange dyes; Photo degradation; Visible light; ]+ catalyst; Energy gap | English | 2022 | 2022-06-01 | 10.1016/j.matlet.2022.131998 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Sexual inactivation induced by the mucus that covers land snail love darts: sexual selection and evolution of allohormones in hermaphrodites | The transfer of male accessory gland secretions is a well-investigated reproductive strategy for winning in sexual selection. An example of such a strategy is the conspicuous mating behaviour of simultaneously hermaphroditic land snails, the so-called shooting of love darts, whereby a snail drives a love dart(s) into the body of its mating partner. In the land snail Euhadra quaesita, it has been shown that a specific mucus which coats the love dart is transferred into the partners haemolymph and that it suppresses subsequent matings in the darted individual. However, how the mucus of the love dart suppresses rematings remains unclear. In the present study, we tested the hypothesis that by injection of the dart mucus, love-dart shooters manipulate the physiology of a dart recipient and make the individual sexually inactive. In an experiment in which snails were provided with opportunities to encounter a potential mating partner, we found that the latency period to achieve sexual arousal was longer in snails injected with the dart mucus than in snails of the control treatments. This finding indicates that the dart mucus delays sexual arousal in injected snails. This delay in arousal is a novel example of the effects of the mucus in simultaneously hermaphroditic land snails. The remating suppression effect of the dart mucus is likely to occur through sexual inactivation. | Shibuya, Kaito; Chiba, Satoshi; Kimura, Kazuki | Tohoku Univ, Grad Sch Life Sci, Dept Environm Life Sci, Aoba Ku, Kawauchi 41, Sendai, Miyagi 9800862, Japan; Kyungpook Natl Univ, Dept Biol, 80 Daehak Ro, Daegu 41566, South Korea | Kimura, Kazuki/AAF-4137-2020 | 55555587100; 55697248000; 55464858400 | k.kimura.000@gmail.com; | JOURNAL OF EXPERIMENTAL BIOLOGY | J EXP BIOL | 0022-0949 | 1477-9145 | 225 | 4 | SCIE | BIOLOGY | 2022 | 2.8 | 42.9 | 0.42 | 2025-06-25 | 2 | 4 | Accessory gland secretions; Accessory gland proteins; Mate manipulation; Remating suppression; Simultaneous hermaphrodites | SEMINAL FLUID PROTEINS; TERRESTRIAL SNAIL; SPERM STORAGE; COURTSHIP; PULMONATA; PHEROMONE; BEHAVIOR; GLAND | Accessory gland proteins; Accessory gland secretions; Mate manipulation; Remating suppression; Simultaneous hermaphrodites | Animals; Love; Male; Mucus; Sexual Behavior, Animal; Sexual Selection; Snails; animal; love; male; mucus; physiology; sexual behavior; sexual selection; snail | English | 2022 | 2022-02 | 10.1242/jeb.238782 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Comparison of Ustekinumab Trough Concentrations Measured by 2 ELISA Kits and Evaluation of Clinical Response in Crohn's Disease | Background: Ustekinumab is a recently introduced biological agent for the treatment of Crohn's disease. The clinical use of the trough concentration of ustekinumab is not as standardized as that of infliximab. The authors aimed to introduce a measurement method and the results of trough concentrations of ustekinumab in clinical applications. Methods: Thirty-two blood samples from 10 young adult patients diagnosed with Crohn's disease were analyzed. During the maintenance treatment, injection intervals were shortened from 12 weeks to 8 weeks in 4 patients who exhibited a loss of response. Ustekinumab trough concentrations were measured using 2 commercial ELISA kits, kit A and kit B. Results: The median trough concentrations measured with kits A and B were 0.26 and 0.38 mcg/mL, respectively. In the case of kit A, low trough concentrations were undetected on many occasions and measured as zero, whereas kit B displayed their relative values even at low concentrations. Poor clinical parameters, elevated erythrocyte sedimentation rate, C-reactive protein, and calprotectin levels were significantly correlated with lower trough concentrations (P < 0.05). The area under the receiver operating characteristics curve of kit B (0.921) was greater than that of kit A (0.744). The optimal cutoff values for prediction clinical responses were 0.17 and 0.41 mcg/mL for kit A and kit B, respectively. Conclusions: The trough concentration of ustekinumab measured by the 2 ELISA kits correlated with laboratory results that indicated the activity of Crohn's disease. Furthermore, kit B detected even minute changes in trough concentrations. | Kwon, Yiyoung; Kang, Ben; Kim, Eun Sil; Choe, Yon Ho; Kim, Mi Jin | Sungkyunkwan Univ, Samsung Med Ctr, Dept Pediat, Sch Med, 81 Irwon Ro, Seoul 06351, South Korea; Kyungpook Natl Univ, Childrens Hosp, Sch Med, Dept Pediat, Daegu, South Korea | ; Kim, Mi Jin/GXH-9639-2022; Kim, Nam-Joong/J-2735-2012; 康, 奔/JMQ-0812-2023 | 57211905573; 57194823199; 57205500267; 21333712100; 56638815200 | mijin1217.kim@samsung.com; | THERAPEUTIC DRUG MONITORING | THER DRUG MONIT | 0163-4356 | 1536-3694 | 44 | 4 | SCIE | MEDICAL LABORATORY TECHNOLOGY;PHARMACOLOGY & PHARMACY;TOXICOLOGY | 2022 | 2.5 | 43.1 | 0.27 | 2025-06-25 | 2 | 2 | ustekinumab; therapeutic drug monitoring; commercial ELISA kit; Crohn's disease | INFLIXIMAB; INDUCTION; EFFICACY; OUTCOMES; THERAPY; INDEX | commercial ELISA kit; Crohn's disease; therapeutic drug monitoring; ustekinumab | C-Reactive Protein; Crohn Disease; Enzyme-Linked Immunosorbent Assay; Humans; Infliximab; Treatment Outcome; Ustekinumab; Young Adult; adalimumab; albumin; azathioprine; C reactive protein; calgranulin; infliximab; mesalazine; ustekinumab; C reactive protein; infliximab; ustekinumab; adult; albumin blood level; anastomosis; antibody blood level; Article; blood sampling; case report; clinical article; clinical evaluation; Crohn disease; drug substitution; drug withdrawal; enzyme linked immunosorbent assay; erythrocyte sedimentation rate; feces analysis; female; hospital laboratory; human; human tissue; Korea; maintenance therapy; male; treatment duration; trough concentration; Crohn disease; metabolism; treatment outcome; young adult | English | 2022 | 2022-08 | 10.1097/ftd.0000000000000976 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Geostatistical analysis and hydrofacies simulation for estimating the spatial variability of hydraulic conductivity in the Jianghan Plain, central China; [地质统计和三维水相模拟江汉平原典型含水层渗透系数空间变异分布特征]; [Analyse géostatistique et simulation des hydrofaciès pour estimer la variabilité spatiale de la conductivité hydraulique dans la plaine de Jianghan, Chine centrale]; [Análise geoestatística e simulação de hidrofácies para estimar a variabilidade espacial da condutividade hidráulica na Planície de Jianghan, China central]; [Análisis geoestadístico y simulación de hidrofacies para estimar la variabilidad espacial de la conductividad hidráulica en la llanura de Jianghan, China central] | This study evaluated the spatial variability of hydraulic conductivity (K) along the Han River watershed in the Jianghan Plain (China) by using different geostatistical methods. The K distribution was estimated from 58 borehole measurements, and co-kriging estimates were obtained by incorporating 287 electrical resistivity (ρ) and 260 hydraulic gradient (I) values as auxiliary data. Additionally, 2,980 lithology samples were classified into three hydrofacies units in terms of decreasing K, which was simulated accordingly. The results indicate that the highest K values are in the western part of Shahu town and near the Yangtze River. The trend continues to diminish across western and northern Xiantao town and north-west of Xingou town, as well as across the transition zone from highland to lowland (from Shayang town to Zhanggang town). The low K values occur from the northern part of Jiukou town to Shayang town, and around Xingou town, and then are scattered around the high K values, with the lowest K values distributed in the north-west of the study area (from the catchment margin to the north of Shayang town), in Yanglinwei town, and east of Shahu town. As for the geostatistical methods, co-kriging estimates based on ρ and I highlight the variability of K, with the latter providing more realistic results. The three-dimensional hydrofacies model realistically represents the spatial distributions of K in the Quaternary aquifer system. The estimated results and hydrofacies simulation could provide a basic database for further groundwater modeling and water resource evaluation. © 2022, The Author(s), under exclusive licence to International Association of Hydrogeologists. | Xue, Peipei; Wen, Zhang; Park, Eungyu; Jakada, Hamza; Zhao, Dejun; Liang, Xing | Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Department of Geology, Kyungpook National University, Daegu, South Korea; Department of Civil Engineering, Baze University, Abuja, Nigeria; Hubei Institute of Hydrogeology and Engineering Geology, Hubei, Jingzhou, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China | 57221745228; 15020088000; 23995577700; 57096062200; 57221744747; 57208690308 | wenz@cug.edu.cn; | Hydrogeology Journal | HYDROGEOL J | 1431-2174 | 1435-0157 | 30 | 4 | SCIE | GEOSCIENCES, MULTIDISCIPLINARY;WATER RESOURCES | 2022 | 2.8 | 43.2 | 0.64 | 2025-06-25 | 6 | Alluvial aquifers; China; Geostatistics; Hydraulic conductivity; Spatial variability | China; Hubei; Jianghan Plain; Yangtze River; alluvial deposit; aquifer; catchment; electrical resistivity; estimation method; hydraulic conductivity; spatial variation | English | Final | 2022 | 10.1007/s10040-022-02495-4 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Soil liquefaction potential assessment using ambient noise: A case study in Pohang, Korea | An M ( W ) 5.5 earthquake occurred in Pohang, Korea, on 15 November 2017 and caused large damage. In and around the epicentral area the earthquake also remained numerous sand boils, which is a surface representation of soil liquefaction at shallow depth during the earthquake. Soil liquefaction is one of the most dangerous consequences of an earthquake. Here we show that the spatial distribution of the ground vulnerability index (K ( g )), which we estimate via ambient noise analysis, correlates very well with the distribution of sand boils. Our K ( g ) model based on the dense microtremor surveys at differing geological conditions and urbanizations indicates that only 28.4% of the study area is vulnerable to ground shaking (K ( g ) > 20), with 91.1% of the observed sand boils occurring in these vulnerable areas. We also observed that K ( g ) values estimated in the study correlate well with both V ( S30 ) values and geologic units in the study area. This case report confirmed that the K ( g ) can be an affordable supplement to traditional, but expensive and time-consuming, geotechnical/geophysical techniques for the initial screening and regional evaluations. Such a K ( g ) map can assist stakeholders in earthquake-prone regions in identifying areas more susceptible to liquefaction and bring a recommendation to consider seismic hazard mitigation. | Kang, Su Young; Kim, Kwang-Hee; Gihm, Yong Sik; Kim, Byungmin | Pusan Natl Univ, Inst Geohazard Res, Pusan, South Korea; Pusan Natl Univ, Dept Geol Sci, Pusan, South Korea; Kyungpook Natl Univ, Sch Earth Syst Sci, Daegu, South Korea; Ulsan Natl Inst Sci & Technol, Dept Urban & Environm Engn, Ulsan, South Korea | Kim, Byungmin/ABG-6026-2020 | 55258095200; 36026461800; 56025805300; 55726495200 | kwanghee@pusan.ac.kr; | FRONTIERS IN EARTH SCIENCE | FRONT EARTH SC-SWITZ | 2296-6463 | 10 | SCIE | GEOSCIENCES, MULTIDISCIPLINARY | 2022 | 2.9 | 43.3 | 0.36 | 2025-06-25 | 4 | 4 | earthquakes; soil liquefaction; seismic hazard; ground vulnerability; horizontal-to-vertical spectral ratio | SEISMIC HAZARD; WESTERN INDIA; MICROTREMOR; EARTHQUAKE; HVSR; MAGNITUDE; DAMAGE; DEFORMATION; RESISTANCE; PENINSULA | earthquakes; ground vulnerability; horizontal-to-vertical spectral ratio; seismic hazard; soil liquefaction | North Kyongsang; Pohang; South Korea; ambient noise; earthquake epicenter; earthquake event; earthquake magnitude; liquefaction; mitigation; seismic hazard; soil mechanics; urbanization | English | 2022 | 2022-11-10 | 10.3389/feart.2022.1029996 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Caries detection with tooth surface segmentation on intraoral photographic images using deep learning | Background: Intraoral photographic images are helpful in the clinical diagnosis of caries. Moreover, the application of artificial intelligence to these images has been attempted consistently. This study aimed to evaluate a deep learning algorithm for caries detection through the segmentation of the tooth surface using these images. Methods: In this prospective study, 2348 in-house intraoral photographic images were collected from 445 participants using a professional intraoral camera at a dental clinic in a university medical centre from October 2020 to December 2021. Images were randomly assigned to training (1638), validation (410), and test (300) datasets. For image segmentation of the tooth surface, classification, and localisation of caries, convolutional neural networks (CNN), namely U-Net, ResNet-18, and Faster R-CNN, were applied. Results: For the classification algorithm for caries images, the accuracy and area under the receiver operating characteristic curve were improved to 0.813 and 0.837 from 0.758 to 0.731, respectively, through segmentation of the tooth surface using CNN. Localisation algorithm for carious lesions after segmentation of the tooth area also showed improved performance. For example, sensitivity and average precision improved from 0.890 to 0.889 to 0.865 and 0.868, respectively. Conclusion: The deep learning model with segmentation of the tooth surface is promising for caries detection on photographic images from an intraoral camera. This may be an aided diagnostic method for caries with the advantages of being time and cost-saving. | Park, Eun Young; Cho, Hyeonrae; Kang, Sohee; Jeong, Sungmoon; Kim, Eun-Kyong | Yeungnam Univ, Coll Med, Dept Dent, Daegu, South Korea; Kyungpook Natl Univ Hosp, Res Ctr Artificial Intelligence Med, Daegu, South Korea; Kyungpook Natl Univ, Coll IT Engn, Sch Elect Engn, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Med Informat, Daegu, South Korea; Kyungpook Natl Univ, Coll Sci & Technol, Dept Dent Hyg, 2559 Gyeongsangde Ro, Sangju, Gyeongsangbug D, South Korea | 57188575494; 57996313700; 57874967700; 23100090400; 55915892100 | jinha01@naver.com; | BMC ORAL HEALTH | BMC ORAL HEALTH | 1472-6831 | 22 | 1 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 2.9 | 43.4 | 7.04 | 2025-06-25 | 36 | 45 | Artificial intelligence; Caries localisation; Convolutional neural network; Deep learning; Intraoral camera; Tooth surface segmentation | DENTAL-CARIES; CAMERA; DIAGNOSIS; CANCER | Artificial intelligence; Caries localisation; Convolutional neural network; Deep learning; Intraoral camera; Tooth surface segmentation | Artificial Intelligence; Deep Learning; Humans; Prospective Studies; artificial intelligence; human; prospective study | English | 2022 | 2022-12-07 | 10.1186/s12903-022-02589-1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Evidence-based selection of orthodontic miniscrews, increasing their success rate in the mandibular buccal shelf. A randomized, prospective clinical trial | Background: Skeletal anchorage has made it possible to perform complex orthodontic tooth movements that are difficult or even impossible to achieve with conventional orthodontic treatment. Mandibular buccal shelf miniscrews, used for distalization, play a particularly important role in treatment of Class III malocclusion. Unfortunately, stability of the miniscrews placed in the mandible is still considered at higher risk of failure compared to other intraoral locations. The aim of our study was to determine the influence of the miniscrew size on their long-term stability, occurrence of oral mucosa inflammation and pain lasting over 48 h after implantation. Methods: 184 Absoanchor (R) miniscrews (Dentos, South Korea) in two sizes: SH2018-10 (length 10 mm, empty set 1.8-2.0 mm) and SH1514-08 (length 8 mm, empty set 1.4-1.5 mm) were inserted in the mandibular buccal shelf in 92 Caucasians aged 20-50 years, diagnosed with Class III malocclusion that required en-masse distalization of the mandibular dentition. Data was statistically analyzed with the level of significance set at p = .05. Results: 91.3% of the SH2018-10 and 75% of the SH1514-08 miniscrews were stable, and this difference was statistically significant (p .05), contrary to the SH1514-08 ones (p < .05). When inflammation was present, the overall success rate declined to 64.29%, from 94.74% noted for TADs without inflammation. According to the log-rank test, smaller TADs failed significantly sooner than the larger ones (p = .002). Conclusion: Larger SH2018-10 miniscrews are the anchorage of choice for the mandibular buccal shelf, despite triggering inflammation and long-lasting pain significantly more often than the smaller ones. Therefore, this issue should be discussed with every patient prior to miniscrew use. | Sarul, Michal; Lis, Joanna; Park, Hyo-Sang; Rumin, Kornelia | Wroclaw Med Univ, Dept Dentofacial Orthoped & Orthodont, Ul Krakowska 26, PL-50425 Wroclaw, Poland; Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu 41940, South Korea | sarul, michal/HGB-7296-2022 | 54398037000; 57197375140; 55754836800; 55585410100 | kornelia.rumin@gmail.com; | BMC ORAL HEALTH | BMC ORAL HEALTH | 1472-6831 | 22 | 1 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 2.9 | 43.4 | 1.44 | 2025-06-25 | 7 | 9 | Orthodontics; Orthodontic anchorage procedures; Mandible | IMPLANT ANCHORAGE; SCREW IMPLANTS; MINI-IMPLANTS; STABILITY; MICROIMPLANT | Mandible; Orthodontic anchorage procedures; Orthodontics | Bone Screws; Humans; Inflammation; Malocclusion, Angle Class III; Mandible; Orthodontic Anchorage Procedures; Orthodontic Appliance Design; Pain; Prospective Studies; bone screw; controlled study; human; inflammation; malocclusion; mandible; orthodontic anchorage; orthodontic procedure; pain; prospective study; randomized controlled trial; surgery | English | 2022 | 2022-09-20 | 10.1186/s12903-022-02460-3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Trajectory classes of social activity and their effects on longitudinal changes in cognitive function among older adults | Objectives: This study aimed to identify the social activity trajectory by class and the effects on the cognitive function trajectory among older adults. Methods: Data from six waves of the 2006-2016 Korean Longitudinal Study of Aging were analyzed. This study included 3,002 participants aged >= 65 years. Latent class growth modeling was used to classify the respondents based on their engagement in social activity over 10 years. Latent growth modeling was used to examine the effect of their social activity trajectory by class to predict participants' cognitive function trajectory. Results: We identified four social activity trajectory classes: high-stable (7.8%), moderate-stable (50.3%), high-decreasing (2.9%), and low-decreasing (39.0%). Older adults with an age of 75 years or older, a low education level, instrumental activities of daily living limitations, and depressive symptoms were more likely to be in the low-decreasing social activity trajectory class. The respondents in the high-stable (B = 0.680, p < 0.001) and moderate-stable (B = 0.362, p < 0.001) classes showed a slower rate of cognitive decline compared with those in the low-decreasing class. Discussion: Community-based strategies need to be developed to encourage older adults to maintain their social activity engagement and ultimately prevent cognitive decline. | Kim, Da Eun; Yoon, Ju Young | Kyungpook Natl Univ, Coll Nursing, Daegu, South Korea; Kyungpook Natl Univ, Res Inst Nursing Sci, Daegu, South Korea; Seoul Natl Univ, Coll Nursing, Seoul, South Korea; Seoul Natl Univ, Res Inst Nursing Sci, Seoul, South Korea; Brain Korea 21 BK 21 Four Project, Ctr Human Caring Nurse Leaders Future, Seoul, South Korea | 57197746076; 55363051400 | yoon26@snu.ac.kr; | ARCHIVES OF GERONTOLOGY AND GERIATRICS | ARCH GERONTOL GERIAT | 0167-4943 | 1872-6976 | 98 | SCIE | GERIATRICS & GERONTOLOGY | 2022 | 4 | 43.5 | 1.75 | 2025-06-25 | 12 | 14 | Social participation; Cognition; Aged; Latent class analysis; Longitudinal studies | LIFE; AGE; IMPAIRMENT; DECLINE; PARTICIPATION; DEPRESSION; DISABILITY; ENGAGEMENT; MORTALITY; HEALTH | Aged; Cognition; Latent class analysis; Longitudinal studies; Social participation | Activities of Daily Living; Aged; Aging; Cognition; Cognitive Dysfunction; Humans; Longitudinal Studies; aged; Article; cognition; cognitive defect; controlled study; daily life activity; data analysis; depression; educational status; female; geriatric patient; human; latent class analysis; longitudinal study; major clinical study; male; prediction; social behavior; social participation; South Korea; South Korean; aging; cognition; cognitive defect; daily life activity | English | 2022 | 2022 (JAN-FEB) | 10.1016/j.archger.2021.104532 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | A machine learning-based methodology for identification of the plastic flow in aluminum sheets during incremental sheet forming processes | This study presents a calibration method based on machine learning techniques to identify parameters of hardening law of aluminum alloy sheets in complex manufacturing processes. A V-shape test is designed to characterize material behavior during an incremental sheet forming (ISF) process. A series of virtual materials is first generated using three physical features observed in a standard uniaxial tensile test: initial yield stress, maximum uniform plastic strain, and yield-to-strength ratio. These virtual materials are then employed in simulating the designed V-shape tests to numerically collect the material responses, such as forming forces, displacements, or their combinations. Several feed-forward neural networks (FFNNs) are developed and trained to relate the collected material responses to the relevant virtual materials. Then, the trained FFNNs were used to estimate the flow curve of AA5052-H32 sheets up to a plastic strain value of 1.0 using the experimentally measured response from the V-shape test during ISF. The FFNN-based flow curves appear to capture well the stress-strain data obtained from the uniaxial tensile test with the coefficients of determination up to 0.98. The identified flow curves are also employed to simulate the uniaxial tensile and ISF truncated cone tests. The simulated uniaxial tensile forces are in good agreement with the experimentally measured results. A maximum difference of 5% is observed in the comparison between the simulated and measured ISF loading forces in the steady-state deformations. The comparisons demonstrate the efficiency of the proposed method to characterize the plastic flow of metal. | Quoc Tuan Pham; Hai Son Le; Anh Tuan Nguyen; Xiao, Xiao; Kim, Young-Suk; Van Dung Nguyen; Hoang Son Tran; Xuan Van Tran | Ton Duc Thang Univ, Inst Computat Sci, Div Computat Math & Engn, Ho Chi Minh City, Vietnam; Ton Duc Thang Univ, Fac Civil Engn, Ho Chi Minh City, Vietnam; Thu Dau Mot Univ, Inst Dev Strategies, Binh Duong 75100, Vietnam; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Univ Liege, Allee La Decouverte,CM3 Unit9 B52-3, B-4000 Liege, Belgium; Univ Liege, MSM Unit, Allee La Decouverte,9 B52-3, B-4000 Liege, Belgium | , Van Dung Nguyen/AAM-8484-2021; Kim, Sang-Hoon/AAA-2248-2020; Nguyen, Tuan/ACG-0465-2022; Pham, Quoc Tuan/AAH-8010-2019 | 57191753992; 57476716800; 58438424800; 57195394085; 36065820800; 56370453000; 57169567700; 55274068700 | phamquoctuan@tdtu.edu.vn;xuantv@tdmu.edu.vn; | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | INT J ADV MANUF TECH | 0268-3768 | 1433-3015 | 120 | 5-6 | SCIE | AUTOMATION & CONTROL SYSTEMS;ENGINEERING, MANUFACTURING | 2022 | 3.4 | 43.8 | 0.67 | 2025-06-25 | 9 | 9 | Aluminum sheets; Strain hardening behavior; Incremental sheet forming; Artificial neural networks; Finite element analysis | FRACTURE EXPERIMENTS; HARDENING LAWS; LIMIT CURVE; PREDICTION; STRESS; PARAMETERS; BEHAVIOR; MODEL; NANOINDENTATION; EXTRACTION | Aluminum sheets; Artificial neural networks; Finite element analysis; Incremental sheet forming; Strain hardening behavior | Aluminum alloys; Aluminum sheet; Feedforward neural networks; Machine learning; Plastic flow; Plasticity; Strain hardening; Tensile testing; Yield stress; Feed forward neural net works; Finite element analyse; Flow curves; Incremental sheet forming; Shape test; Sheet forming process; Strain hardening behavior; Uniaxial tensile test; V-shape; Virtual materials; Finite element method | English | 2022 | 2022-05 | 10.1007/s00170-022-08698-z | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Correlation between microstructure and mechanical properties of welding joint in 9% Ni steel with two types of Ni-based superalloy filler metals | Flux-cored arc welding (FCAW) joints with 9% Ni steel were prepared using Ni-based superalloy filler metals. The correlation between the microstructure and mechanical properties of the weld joint based on the type of filler materials was investigated. Owing to the heat transferred during the welding process, the heat-affected zone (HAZ) of the base metal primarily comprised martensite and exhibited higher hardness than the weld metal and existing base metal. To evaluate the toughness of FCAW joints against low-temperature fractures, Charpy impact tests at -196 degrees C were conducted; an absorbed impact energy of at least 55 J was observed in the weld metal, HAZ, and base metal regions, which was significantly higher than the standard specification. Comparing Alloys 709 and 609 as filler metals, a higher absorbed impact energy was observed when using Alloy 709 in both the weld metal and HAZ regions. This is because the quantity of precipitates, which can act as a point of crack initiation and propagation in weld beads, was smaller when Alloy 709 was used, and the gamma phase was stably maintained even at low temperatures owing to the high content of elements that decrease the martensite start temperature (gamma stabilizers) in the bead and transition areas. Furthermore, Alloy 709 obtained a low volume fraction and small grain size in the coarse-grained HAZ, which is known as the toughness degradation zone. This can contribute to the higher impact toughness compared with Alloy 609. | Hwang, Ji Yong; Choi, Kwangsu; Jung, Hyo Yun | Korea Inst Ind Technol, 3D Printing Mfg Proc Ctr, Adv Forming Proc R&D Grp, 40,Techno Saneop Ro 29 Beon Gil, Ulsan 44776, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57416737500; 57199499063; 56336504300 | hjung@kitech.re.kr; | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | INT J ADV MANUF TECH | 0268-3768 | 1433-3015 | 122 | 5-6 | SCIE | AUTOMATION & CONTROL SYSTEMS;ENGINEERING, MANUFACTURING | 2022 | 3.4 | 43.8 | 0.15 | 2025-06-25 | 2 | 2 | 9% Ni steel; Ni-based superalloy; Microstructure; Mechanical property; Flux-cored arc welding | FRACTURE-TOUGHNESS; INTERFACE; ALLOY; SOLIDIFICATION; ZONE | 9% Ni steel; Flux-cored arc welding; Mechanical property; Microstructure; Ni-based superalloy | Charpy impact testing; Filler metals; Fillers; Heat affected zone; Martensite; Metals; Nickel alloys; Superalloys; Temperature; 9% Ni steel; Arc-welding; Base metals; Flux-cored arc welding; Heat-affected zones; Lows-temperatures; Microstructures and mechanical properties; Ni-based superalloys; Weld metal; Welding joints; Microstructure | English | 2022 | 2022-09 | 10.1007/s00170-022-10069-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Determination of the optimal milling feed direction for unidirectional CFRPs using a predictive cutting-force model | To minimize the cutting force during milling of unidirectional carbon-fiber-reinforced plastics (CFRPs), we present a method that uses a predictive cutting-force model to optimize the feed direction. A CFRP with six different absolute fiber-orientation angles was used to derive specific cutting forces. Cutting force was predicted using regression of the specific cutting force and verified by milling tests, with 2-10-mm radial depths of cut at each fiber-orientation angle. The fiber cutting angle, which significantly affects CFRP cutting characteristics, can easily be changed by varying the feed direction. Therefore, the optimal feed direction is derived by predicting the cutting force in the feed direction in the range 0-180 degrees using the cutting-force model and comparing the cutting forces in all feed directions. The optimal feed direction is expressed by a second-order polynomial function of the radial depth of cut. In the validation of the proposed method, the cutting force and cycle time in the optimal feed direction were reduced by 54% and 53%, respectively. Because only the feed-direction angle is changed, which is a relatively easy adjustment in the milling process, this method efficiently reduces the cutting force in CFRP milling. Also, as a predictive cutting-force model is employed, it is possible to derive the optimal feed direction under various cutting conditions with minimal experimentation. | Kim, Dong-Gyu; Jung, Yun-Chul; Kweon, Sung-Hwan; Yang, Seung-Han | Daegu Mechatron Mat Inst, Adv Cutting Tool Ctr, 3 Seongseogongdan Ro, Daegu 42715, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57966905700; 57967252500; 8327171800; 8407949900 | syang@knu.ac.kr; | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | INT J ADV MANUF TECH | 0268-3768 | 1433-3015 | 123 | 9-10 | SCIE | AUTOMATION & CONTROL SYSTEMS;ENGINEERING, MANUFACTURING | 2022 | 3.4 | 43.8 | 0.45 | 2025-06-25 | 6 | 6 | CFRP; Milling; Cutting-force model; Feed direction; Fiber cutting angle | GRAPHITE/EPOXY COMPOSITE; SURFACE QUALITY; STEP DRILL; FIBER; DELAMINATION; PERFORMANCE; MECHANISMS; VIBRATION; GEOMETRY; DAMAGE | CFRP; Cutting-force model; Feed direction; Fiber cutting angle; Milling | Carbon fiber reinforced plastics; Cutting; Fibers; Carbon-fibre reinforced plastics; Cutting angles; Cutting force model; Cutting forces; Depth of cut; Feed direction; Fiber cutting; Fiber cutting angle; Fiber orientation angle; Milling; Milling (machining) | English | 2022 | 2022-12 | 10.1007/s00170-022-10309-w | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Microstructural Evolution and Mechanical Properties of FCAW Joints in 9% Ni Steel Prepared with Two Types of Ni-Based Weld Metals | The microstructural and mechanical evaluation of 9% Ni steel with flux-cored arc welding (FCAW) was performed with two different Ni-based weld metals: Inconel 625 and Hastelloy 609. The weld metals showed microstructural changes depending on the temperature gradient and crystal growth rate for each region during the cooling after welding. A cellular/planar growth was exhibited at the bottom of the weld metal, which was rapidly cooled in contact with the cold base metal. Columnar dendrites were exhibited in the central region that cooled relatively slowly, and precipitates were observed in the interdendritic region. The weld joints between the base metal and weld metal have a compositional transition region due to dilution. The transition region comprised a martensite layer and a gamma-phase cellular/planar layer, according to the compositional distribution. In the low-temperature toughness test, the absorbed impact energies were 89 and 55 J for Inconel 625 and Hastelloy 609, respectively. When Inconel 625 is used as the weld metal compared to Hastelloy 609, the high content of the gamma-stabilizer and martensite start temperature decreasing elements leads to the formation of a thicker gamma-phase layer and thinner martensite layer in the transition region. In addition, the high content of these elements suppresses the martensite transformation and maintains the stability of the weld joint interface even at low temperatures, resulting in the higher absorbed impact energy. The microstructure of weld joints and its influences on mechanical properties help to improve the practical application of 9% Ni steel FCAW. | Hwang, Jiyong; Choi, Kwangsu; Lee, Sang Min; Jung, Hyo Yun | Korea Inst Ind Technol, 3D Printing Mfg Proc Ctr, Adv Forming Proc R&D Grp, 40 Techno Saneop Ro 29 Beon Gil, Ulsan 44776, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak Ro, Daegu 41566, South Korea; Korea Inst Def Anal, Ctr Secur & Strategy, 37 Hoegi Ro, Seoul 02455, South Korea | 57416737500; 57199499063; 57577177000; 56336504300 | hjung@kitech.re.kr; | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | INT J ADV MANUF TECH | 0268-3768 | 1433-3015 | 120 | 9-10 | SCIE | AUTOMATION & CONTROL SYSTEMS;ENGINEERING, MANUFACTURING | 2022 | 3.4 | 43.8 | 0.22 | 2025-06-25 | 3 | 3 | 9% Ni steel; Flux-cored arc welding; Microstructure evolution; Transition area; Low-temperature toughness | FRACTURE-TOUGHNESS; SOLIDIFICATION | 9% Ni steel; Flux-cored arc welding; Low-temperature toughness; Microstructure evolution; Transition area | Growth rate; Martensite; Metals; Microstructural evolution; Morphology; Temperature; Toughness; 9% Ni steel; Cellulars; Hastelloy; Inconel 625; Low-temperature toughness; Microstructure evolutions; Transition area; Transition regions; Weld metal; Welds joint; Welds | English | 2022 | 2022-06 | 10.1007/s00170-022-09173-5 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Reaction Characteristics of Ni-Based Catalyst Supported by Al2O3 in a Fluidized Bed for CO2 Methanation | CO2 methanation is a promising technology to store renewable energy by converting carbon dioxide with green hydrogen into methane, which is known as power to gas (PtG). In this study, CO2 methanation performance of a Ni/Al2O3 catalyst was investigated in a bubbling fluidized bed (BFB) and the axial gas concentration, temperature, and CO2 conversion were densely analyzed. Moreover, a modified reaction kinetic model was proposed, and the results were compared with experimental data. The bed temperature increased by 11 degrees C from 340 degrees C to 351 degrees C within the first 30 mm of the fluidized bed. The CO2 conversion was approximately 90% within 50 mm from the bottom of the reactor and was maintained above this height. The Ni/Al2O3 catalyst exhibited the highest CO2 conversion (95%) at 320 degrees C. Using a simple plug-flow reactor model, three optimized kinetic modification factors (1.5094, 0.0238, and 0.2466) were used to fit the experimental data. The hydrodynamic effects significantly influenced the chemical reaction kinetics of the BFB. | Hwang, Byungwook; Ngo, Son Ich; Lim, Young-Il; Seo, Myung Won; Park, Sung Jin; Ryu, Ho-Jung; Nam, Hyungseok; Lee, Doyeon | Korea Inst Energy Res, Climate Change Res Div, 152 Gajeong Ro, Daejeon 34129, South Korea; Hankyong Natl Univ, Ctr Sustainable Proc Engn CoSPE, Dept Chem Engn, 327 Jungang Ro, Anseong 17579, South Korea; Univ Seoul, Sch Environm Engn, 163 Seoulsiripdae Ro, Seoul 02504, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea; Hanbat Natl Univ, Dept Civil & Environm Engn, 125 Dongseo Daero, Daejeon 34158, South Korea | ; Ryu, Ho-Jung/AAV-3451-2020; Seo, Myung Won/CAH-4989-2022; Ngo, Son/V-2843-2019 | 44461423600; 49461681400; 7402565163; 57745828100; 57206639196; 7202277238; 57190418228; 55881252900 | namhs219@knu.ac.kr;dylee82@hanbatac.kr;dylee82@hanbat.ac.kr; | CATALYSTS | CATALYSTS | 2073-4344 | 12 | 11 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 3.9 | 43.8 | 0.37 | 2025-06-25 | 5 | 5 | CO2 utilization; methanation; power-to-gas; nickel oxide; bubbling fluidized bed; reaction kinetics | POWER-TO-GAS; ENERGY-STORAGE TECHNOLOGIES; HYDROGEN-PRODUCTION; SYSTEM | bubbling fluidized bed; CO<sub>2</sub> utilization; methanation; nickel oxide; power-to-gas; reaction kinetics | English | 2022 | 2022-11 | 10.3390/catal12111346 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Recent Developments in Advanced Oxidation Processes for Organics-Polluted Soil Reclamation | Soil pollution has become a substantial environmental problem which is amplified by overpopulation in different regions. In this review, the state of the art regarding the use of Advanced Oxidation Processes (AOPs) for soil remediation is presented. This review aims to provide an outline of recent technologies developed for the decontamination of polluted soils by using AOPs. Depending on the decontamination process, these techniques have been presented in three categories: the Fenton process, sulfate radicals process, and coupled processes. The review presents the achievements of, and includes some reflections on, the status of these emerging technologies, the mechanisms, and influential factors. At the present, more investigation and development actions are still desirable to bring them to real full-scale implementation. | Calenciuc, Crina; Fdez-Sanroman, Antia; Lama, Gabriela; Annamalai, Sivasankar; Sanroman, Angeles; Pazos, Marta | Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Environm Engn & Management, Bulevardul Prof Dimitrie Mangeron 73, Iasi 700050, Romania; Univ Vigo, CINTECX, Campus Lagoas Marcosende, Vigo 36310, Spain; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea | Annamalai, Sivasankar/G-7823-2016; Sanroman, Angeles/A-2847-2008; Pazos, Marta/L-1131-2014; Fernández Sanromán, Antía/GLQ-7271-2022; Fernandez Sanroman, Antia/GLQ-7271-2022 | 57396418500; 57215011346; 57220047858; 56388546200; 56586197300; 56659233000 | biosuv@uvigo.es;antia.fernandez.sanroman@uvigo.es;glama@uvigo.es;asivasankar87@gmail.com;sanroman@uvigo.es;mcurras@uvigo.es; | CATALYSTS | CATALYSTS | 2073-4344 | 12 | 1 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 3.9 | 43.8 | 0.87 | 2025-06-25 | 27 | 28 | AOP; soil; pesticides; PAH; petroleum hydrocarbons | POLYCYCLIC AROMATIC-HYDROCARBONS; THERMALLY ACTIVATED PERSULFATE; DECABROMODIPHENYL ETHER BDE209; MATTER CATALYZES H2O2; FENTON-LIKE OXIDATION; ZERO-VALENT IRON; CONTAMINATED SOIL; CHEMICAL OXIDATION; CRUDE-OIL; ELECTROKINETIC REMEDIATION | AOP; PAH; Pesticides; Petroleum hydrocarbons; Soil | English | 2022 | 2022-01 | 10.3390/catal12010064 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | The Novel Approach of Catalytic Interesterification, Hydrolysis and Transesterification of Pongamia pinnata Oil | The properties of biodiesel are completely dependent on the fatty acid profile of feedstock oils. Several feedstocks are not in use for biodiesel production because of the presence of unsuitable fatty acids in their oils. The present study was conducted to overcome this problem by the utilization of interesterification and hydrolysis processes. The present study reports biodiesel with much better cold flow properties than previous studies. Fatty acids present in Pongamia pinnata oil were optimized via interesterification and hydrolysis treatment of feedstock prior to alkali-catalyzed transesterification. The physiochemical properties of fuel were evaluated by standard test methods and the results were compared with EN 14214 and ASTM D6751 standards. Biodiesel composition was analyzed by a gas chromatographic analysis. The density, saponification and iodine values of the biodiesel derived from treated and non-treated oil were found to be within the range recommended by the international fuel standards. The acid values of biodiesel produced from non-treated and treated fractions were high (0.7-0.8 mg of KOH/g of oil), as compared to the biodiesel produced from non-treated and treated pure oil. The cloud points and pour points of biodiesel produced from hydrolyzed and interesterified oil were in the range of (8.1 to -9.6 degrees C) and (2.03 to -12.5 degrees C), respectively, while those of non-treated oil were in the range of (13.37 to -1.53 degrees C). These results indicate that treatments of oil specifically improved the low-temperature properties of biodiesel. | Inam, Summayia; Hanif, Muhammad Asif; Rashid, Umer; Nadeem, Farwa; Alharthi, Fahad A.; Kazerooni, Elham Ahmed | Univ Agr Faisalabad, Dept Chem, Nano & Biomat Lab, Faisalabad 38040, Pakistan; Univ Putra Malaysia, Inst Nanosci & Nanotechnol ION2, Serdang 43400, Selangor, Malaysia; King Saud Univ, Coll Sci, Chem Dept, Riyadh 1145, Saudi Arabia; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea | Hanif, Muhammad Asif/AAA-9846-2019; Rashid, Umer/C-9986-2011 | 57876272500; 58399216100; 16031556400; 57211788284; 57200522309; 57191375873 | drmuhammadasifhanif@gmail.com;umer.rashid@upm.edu.my;dr.umer.rashid@gmail.com; | CATALYSTS | CATALYSTS | 2073-4344 | 12 | 8 | SCIE | CHEMISTRY, PHYSICAL | 2022 | 3.9 | 43.8 | 0.52 | 2025-06-25 | 5 | 7 | fatty acids; derivatives; physiochemical properties; interesterification; hydrolysis; transesterification | BIODIESEL PRODUCTION; PALM OIL; PREDICTION; SEEDS | derivatives; fatty acids; hydrolysis; interesterification; physiochemical properties; transesterification | English | 2022 | 2022-08 | 10.3390/catal12080896 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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