연구성과로 돌아가기
2021 연구성과 (257 / 281)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Article | Identification of sphingosine 1-phosphate level and MAPK/ERK signaling in pancreatic β cells | Purpose: Sphingosine kinase is a lipid kinase that phosphorylates sphingosine to generate sphingosine 1-phosphate (S1P). S1P regulates pancreatic islet beta-cell endoplasmic reticulum stress and proliferation. Type 1 and type 2 diabetes share some key pathogenic processes. In this study, we investigated whether secretion of insulin and production of S1P is altered in alloxan and glucose-treated cells from the rat pancreatic beta-cell line RIN-5F. Methods: RIN-SF cells were treated with 2 mM alloxan and 20 mM glucose for 6 hours or 24 hours before being evaluated by enzyme linked immunosorbent assay (ELISA) and Western blotting. Results: Insulin secretion and expression was higher in RIN-5F cells treated with glucose compared to control cells. In contrast, alloxan treatment did not affect insulin secretion and expression in RIN-5F cells. Interestingly, compared with normal control levels, S1P/EDG-5 was increased in both alloxan and glucosetreated pancreatic beta cell than normal control. Mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) inhibition strongly decreased the expression of insulin and S1P in glucose- or alloxan-treated RIN-5F cells. Conclusion: We observe that production of S1P is increased in both diabetic cell models. In addition, MAPK/ERK signaling regulates secretion of insulin and SIP expression in pancreatic beta-cells. Based on the literature and our findings, S1P may be a promising agent for the treatment of insulin-related disorders. | Park, Ji Hyun; Park, Kwan Kyu; Choe, Jae Young; Jang, Kyung Mi | Catholic Univ Daegu, Coll Med, Dept Pathol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Emergency Med, Daegu, South Korea; Yeungnam Univ, Coll Med, Dept Pediat, Daegu 42415, South Korea | ; Park, Kyungho/JPL-5809-2023 | 57188947907; 56984258600; 57023107400; 57203762745 | fortune001j@gmail.com; | ANNALS OF PEDIATRIC ENDOCRINOLOGY & METABOLISM | ANN PEDIATR ENDOCRIN | 2287-1012 | 2287-1292 | 26 | 4 | ESCI | ENDOCRINOLOGY & METABOLISM;PEDIATRICS | 2021 | N/A | 0.25 | 2025-07-30 | 5 | 4 | Diabetes; ERK; Insulin; MAPK/ERK signaling; S1P; Sphingolipid metabolism | INSULIN-RESISTANCE; GLYCEMIC-CONTROL; SPHINGOSINE-1-PHOSPHATE; CHILDREN; GLUCOTOXICITY; COMPLICATIONS; MECHANISM; GLUCOSE | Diabetes; ERK; Insulin; MAPK/ERK signaling; S1P; Sphingolipid metabolism | 2 (2 amino 3 methoxyphenyl)chromone; alloxan; glucose; insulin; mitogen activated protein kinase; sphingosine 1 phosphate; animal cell; apoptosis; Article; Bradford assay; cell proliferation; cell structure; cell viability; chemoluminescence; controlled study; cytotoxicity assay; enzyme activity; enzyme linked immunosorbent assay; gene expression; glucose metabolism; immunoblotting; insulin dependent diabetes mellitus; insulin release; insulin resistance; insulin signaling; MAPK signaling; non insulin dependent diabetes mellitus; nonhuman; pancreas islet beta cell; polyacrylamide gel electrophoresis; protein expression; RIN-5F cell line; signal transduction; sphingolipid metabolism; upregulation; Western blotting | English | 2021 | 2021-12 | 10.6065/apem.2040266.133 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Impact of farmer perceptions on the willingness to participate in the utilization of agricultural waste resources under environmental regulations; [环境规制下农户感知对参与农业废弃物资源化利用意愿的影响] | To increase farmer willingness to participate in the utilization of agricultural waste resources, improve the rural ecological environment, and comply with farmer expectations of a better living environment, this study developed a multivariate ordered Logistic model based on survey data from 693 farmers in Henan, Shandong, Sichuan, and Heilongjiang provinces. The effects of farmers' value and skill perceptions, cost-benefit perception, and market recycling condition perception on participation willingness were investigated. The results show that: 1) The skill, cost, and distance perceptions of farmers, together with recycling channels and their recycling channel stability perception, have significant effects on their willingness to participate. Skill perception and recycling channel stability perception also have significant positive effects on participation willingness. 2) Environmental regulatory policies are the most important factors underlying farm household agricultural waste resource utilization behavior, and there are differences in the moderating effects of the relationship between farmers' perception and participation willingness. Guiding regulations have significant positive moderating effects on the relationships between farmers' prospects perception and their participation willingness and farmers' skills perception and participation willingness. Restrictive regulations have significant positive moderating effects on the relationships between farmers' perception of recycling importance and their participation willingness, and farmers' recycling channel stability perception and participation willingness. Incentive regulations have significant positive moderating effects on the relationships between farmers' prospects perception and their participation willingness, farmers' skills perception and participation willingness, farmer's income perception and participation willingness, and farmers' recycling channel stability perception and participation willingness. Environmental regulations based on incentives also have a significant negative moderating effect on the relationship between farmer's distance perception with recycling channels, and their participation willingness. Intensive technical training, more subsidies, and improved agricultural waste recycling mechanisms may increase farmer willingness to participate, while the continuous adjustment and optimization of agricultural waste resource utilization and regulatory policies will aid green development of agriculture and rural areas. © 2021, Science Press. All right reserved. | Zhao, Huijie; Hu, Wanbin | University of Chinese Academy of Social Sciences, Beijing, 102488, China; Kyungpook National University, Daegu, 41566, South Korea | 57222965380; 57222964706 | 1028512241@qq.com; | Chinese Journal of Eco-Agriculture | 2096-6237 | 29 | 3 | 0.57 | 2025-07-30 | 7 | Agricultural wastes; Environmental regulations; Farmers' perception; Participation willingness; Resource utilization | Chinese | Final | 2021 | 10.13930/j.cnki.cjea.200898 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | Impact of Pollinator Insects Associated with Cucumber Fruit Set | Background: Cucumber is one of the popular vegetables of the cultivated cucurbits. Different insect species harbored with cucumber plant and they influence on its production, but little have been studied in Bangladesh. This study investigated the abundance of the insect species and the impact of insect pollinators on cucumber yield. Methods: Investigation was conducted in summer and rainy seasons at Gazipur, Bangladesh. Insects were collected and categorized as pest, predator, pollinator and casual visitor. Occurrence of the insects at different hours of the day and impact of supplemented insect pollinators on fruit and seed set compared to natural and hand pollination were studied. Result: In total thirty species of insects were found with cucumber plants and their relative abundances ranged from 0.4 to 13.7%. We found ten species of insects as pest, ten species as predator, four species as pollinator and six species as casual visitor. The red pumpkin beetle, epilachna beetle and fruit fly were found as the major pests. The red pumpkin beetle revealed the top ranks among the insects and the highest abundance of the insects occurred at 09:00 h of the day. Supplemented insect pollinators revealed higher yield, which indicated the significant for conserving insect pollinators. © 2021, Agricultural Research Communication Centre. All rights reserved. | Amin, Md. Ruhul; Nahid, S.; Suh, Sang Jae | Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh; Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh; School of Applied Biology, Kyungpook National University, Daegu, South Korea | 57964833900; 57465813500; 15754843200 | sjsuh@knu.ac.kr; | Agricultural Science Digest | 0253-150X | 41 | 4 | 0 | 2025-07-30 | 0 | Cucumis sativus; Pest; Pollinator; Predator; Yield | English | Final | 2021 | 10.18805/ag.d-290 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Impact of the COVID-19 outbreak on adult out-of-hospital cardiac arrest outcomes in Daegu, South Korea: an observational study | Objective This study aimed to compare the outcomes of adult out-of-hospital cardiac arrest (OHCA) before and after the coronavirus disease 2019 (COVID-19) outbreak in a large metropolitan city. Methods This before-and-after observational study used a prospective citywide OHCA registry. Adult patients with emergency medical service-treated OHCA, with presumed cardiac etiology, pre-and post-COVID-19 outbreak were enrolled. The study period spanned 2 months, starting from February 18, 2020. The control period was 2 months from February 18, 2019. The primary and secondary outcomes were good neurologic outcome and survival to hospital discharge, respectively. The association between the COVID-19 outbreak and OHCA outcomes was assessed using multivariable logistic regression analysis. Results This study analyzed 297 OHCA patients (control period, 145; study period, 152). The bystander cardiopulmonary resuscitation rates were 64.8% and 60.5% during the control and study periods, respectively. Response and on-scene times increased by 2 minutes, supraglottic airway use increased by 35.6%, and mechanical chest compression device use increased by 13% post-COVID-19 outbreak. Good neurologic outcome was significantly lower during the study period in overall OHCAs (adjusted odds ratio, 0.23; 95% confidence interval, 0.05-0.98) and in witnessed OHCAs (adjusted odds ratio, 0.14; 95% confidence interval, 0.02-0.90). No significant difference was found in the survival to hospital discharge of OHCA patients between the two periods. Conclusion During the COVID-19 pandemic, the response and on-scene times were longer, and good neurologic outcome was significantly lower than that in the control period. | Ahn, Jae Yun; Ryoo, Hyun Wook; Cho, Jae Wan; Kim, Jung Ho; Lee, Sang-Hun; Jang, Tae Chang | Kyungpook Natl Univ, Dept Emergency Med, Sch Med, 680 Gukchaebosang Ro, Daegu 41944, South Korea; Yeungnam Univ, Yeungnam Univ Hosp, Dept Emergency Med, Coll Med, Daegu, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Emergency Med, Sch Med, Daegu, South Korea; Daegu Catholic Univ, Dept Emergency Med, Sch Med, Daegu, South Korea | Kim, Jung Ho/LDE-9088-2024; Ahn, Jae Yun/N-2652-2017; Kim, Jungho/LDE-9088-2024 | 56937505400; 55350557500; 7403536065; 57205704177; 57210919228; 57189297849 | ryoo@knu.ac.kr; | CLINICAL AND EXPERIMENTAL EMERGENCY MEDICINE | CLIN EXP EMERG MED | 2383-4625 | 8 | 2 | ESCI | EMERGENCY MEDICINE | 2021 | N/A | 4.71 | 2025-07-30 | 31 | 30 | COVID-19; Out-of-hospital cardiac arrest; Cardiopulmonary resuscitation; Prognosis | Cardiopulmonary resuscitation; COVID-19; Out-of-hospital cardiac arrest; Prognosis | epinephrine; adult; aged; airway obstruction; Article; artificial ventilation; clinical outcome; controlled study; coronavirus disease 2019; defibrillation; diabetes mellitus; disease control; electric activity; emergency health service; emergency medical dispatcher; emergency ward; endotracheal intubation; extracorporeal oxygenation; female; health care personnel; heart rhythm; heart ventricle fibrillation; heart ventricle tachycardia; hospital discharge; human; hypertension; ischemic heart disease; major clinical study; male; neurologic disease assessment; observational study; out of hospital cardiac arrest; percutaneous coronary intervention; resuscitation; return of spontaneous circulation; South Korea | English | 2021 | 2021-06 | 10.15441/ceem.21.008 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | Article | Impact of transgenic sugarcane overexpressing SoSPS1 gene on bacterial diversity, enzyme activity and minerals content in soil rhizosphere | The transgenic sugarcane overexpressing SoSPS1 gene increased sugar content which may alter the root exudation that interact with soil rhizosphere microorganism. The microbial plays an important role in biochemical cycling and nutrient transformation in the soil. Therefore, it is important to investigate the potential risk of the transgenic sugarcane on soil ecosystem. This study is designed to evaluate the impact of overexpressing gene for sucrose-phosphate synthesis (SoSPS1) on the bacterial diversity, enzyme activity and nutrient contents. The transgenic sugarcane showed no significant difference in the population of culturable bacteria in the soil rhizosphere compared to non-transgenic counterpart. The populations of total, nitrogen-fixing and phosphate-solubilizing bacteria were similar in transgenic and non-transgenic sugarcane, although the bacterial population tends to increase at later sugarcane growth stage may due to the rise in nutrition from the root exudation. The PCR analysis showed no detection of horizontal gene flow in the bacteria. However, urease activity was significantly decreased in the transgenic sugarcane concomitant with lower nitrogen content in the soil rhizosphere at a later growth stage might due to the transgenic sugarcane lines increased nitrogen absorption for higher growth rate. Furthermore, the nutrient contents, such as organic carbon, phosphorus, potassium, magnesium and calcium, slightly varied in the soil rhizosphere but did not affected by the transgenic sugarcane. The results suggested that the transgenic sugarcane overexpressing SoSPS1 gene may not affect the bacterial diversity, nutrient contents and soil ecosystem. © 2020, Korean Society of Crop Science (KSCS). | Wulandari, Fitria Ekawati; Suherman; Handoyo, Tri; Kim, Kyung-Min; Sugiharto, Bambang | Postgraduate Program in Biotechnology, University of Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember, 68121, Indonesia; Laboratory of Molecular Biology and Biotechnology, Center for Development of Advanced Science and Technology (CDAST), University of Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember, 68121, Indonesia; Laboratory of Molecular Biology and Biotechnology, Center for Development of Advanced Science and Technology (CDAST), University of Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember, 68121, Indonesia; Division of Plant Biosciences, School of Applied BioSciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, South Korea; Laboratory of Molecular Biology and Biotechnology, Center for Development of Advanced Science and Technology (CDAST), University of Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember, 68121, Indonesia, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember, 68121, Indonesia | 59259287900; 57218135545; 12775151000; 34868260300; 6602309159 | sugiharto.fmipa@unej.ac.id; | Journal of Crop Science and Biotechnology | 1975-9479 | 24 | 1 | 0.18 | 2025-07-30 | 2 | Bacterial diversity; Soil fertility; Sucrose-phosphate synthase; Sugarcane | English | Final | 2021 | 10.1007/s12892-020-00059-0 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Implementation of an Intelligent Video Detection System using Deep Learning in the Manufacturing Process of Tungsten Hexafluoride | Through the process of chemical vapor deposition, Tungsten Hexafluoride (WF6) is widely used by the semiconductor industry to form tungsten films. Tungsten Hexafluoride (WF6) is produced through manufacturing processes such as pulverization, wet smelting, calcination and reduction of tungsten ores. The manufacturing process of Tungsten Hexafluoride (WF6) is required thorough quality control to improve productivity. In this paper, a real-time detection system for oxidation defects that occur in the manufacturing process of Tungsten Hexafluoride (WF6) is proposed. The proposed system is implemented by applying YOLOv5 based on Convolutional Neural Network (CNN); it is expected to enable more stable management than existing management, which relies on skilled workers. The implementation method of the proposed system and the results of performance comparison are presented to prove the feasibility of the method for improving the efficiency of the WF6 manufacturing process in this paper. The proposed system applying YOLOv5s, which is the most suitable material in the actual production environment, demonstrates high accuracy (mAP@0.5 99.4 %) and real-time detection speed (FPS 46). | Son, Seung-Yong; Kim, Young Mok; Choi, Doo-Hyun | Kyungpook Natl Univ, Grad Sch Ind, Daegu 41566, South Korea; Def Agcy Technol & Qual, Daejeon 34327, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | 57462938800; 57463096300; 7401642881 | dhc@ee.knu.ac.kr; | KOREAN JOURNAL OF MATERIALS RESEARCH | KOR J MATER RES | 1225-0562 | 2287-7258 | 31 | 12 | ESCI | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2021 | N/A | 0 | 2025-07-30 | 0 | 0 | object detection; you only look once (YOLO); tungsten hexafluoride (WF6); reduction; defect detection | object detection; tungsten hexafluoride (WF<sub>6</sub>), reduction, defect detection; you only look once (YOLO) | Convolutional neural networks; Deep learning; Defects; Human resource management; Ores; Productivity; Semiconductor device manufacture; Signal detection; Tungsten compounds; % reductions; Chemical vapour deposition; Defect detection; Detection system; Intelligent video; Manufacturing process; Real-time detection; Tungsten hexafluoride (WF6), reduction, defect detection; Video detection; You only look once; Object detection | Korean | 2021 | 2021-12 | 10.3740/mrsk.2021.31.12.719 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Improved email classification through enhanced data preprocessing approach | Email has become one of the most widely used forms of communication, resulting in an exponential increase in emails received and creating an immense burden on existing approaches to email classification. Applying the classification method on the raw data may worsen the performance of classifier algorithms. Hence, the data have to be prepared for better performance of the machine learning classifiers. This paper proposes an enhanced data preprocessing approach for multi-category email classification. The proposed model removes the signature of the email. Further, special characters and unwanted words are removed using various preprocessing methods such as stop-word removal, enhanced stop-word removal, and stemming. The proposed model is evaluated using various classifiers such as Multi-Nominal Naive Bayes, Linear Support Vector Classifier, Logistic Regression, and Random Forest. The results showed that the proposed data preprocessing to email classification is superior to the existing approach. | Kumara, B. Aruna; Kodabagi, Mallikarjun M.; Choudhury, Tanupriya; Um, Jung-Sup | REVA Univ, CSE Dept, Bangalore, Karnataka, India; Univ Petr & Energy Studies UPES, Sch Comp Sci, Dept Informat, Dehra Dun, Uttarakhand, India; Kyungpook Natl Univ, Coll Social Sci, Dept Geog, 80 Univ Rd, Daegu 702701, South Korea | ; Kodabagi, Mallikarjun/N-9681-2018; Um, Jung-Sup/F-5351-2018; Kumara, Mahesh Sanjeewa/ADX-4372-2022; Choudhury, Tanupriya/AAB-8947-2020 | 57221776785; 6505487227; 57193140084; 35173565000 | arun.bethur87@gmail.com;mmkodabagi@gmail.com;tanupriya1986@gmail.com;jsaeom@knu.ac.kr; | SPATIAL INFORMATION RESEARCH | SPAT INF RES | 2366-3286 | 2366-3294 | 29 | 2 | ESCI | REMOTE SENSING | 2021 | N/A | 0.66 | 2025-07-30 | 3 | 11 | Email classification; Data preprocessing; Imbalanced learning; Text classification; Multi-class imbalance | MULTICLASS CLASSIFICATION; SELECTION; IMBALANCE; TRENDS; IMPACT | Data preprocessing; Email classification; Imbalanced learning; Multi-class imbalance; Text classification | Classification (of information); Learning systems; Logistic regression; Text processing; Class imbalance; Data preprocessing; Email classification; Exponential increase; Imbalanced Learning; Multi-class imbalance; Preprocessing approaches; Stop word; Text classification; Word removals; Electronic mail | English | 2021 | 2021-04 | 10.1007/s41324-020-00378-y | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Proceedings Paper | Improvement of DC Voltage Control Dynamics with Bipolar DC Circuits Using a Zigzag Transformer | This paper presents a voltage source converter employing a zigzag transformer for improving bipolar DC voltage control dynamics. The proposed circuit provides a bidirectional power flow by configuring two converter modules in parallel and sharing the neutral point of a zigzag transformer. The zigzag transformer provides low zero-squence impedance which is in the same range of the leakage components of the transformer. By utilizing this characteristics of the zigzag transformer, the converter can independently control each pole voltage in a bipolar structure and also has a fast dynamic response for controlling DC-link voltages. Therefore, it is advantageous for dealing with different loads on each pole and DC-side fault. The feasibliy of the proposed circuit and its operations is verified by both the simulation and the 10kVA experimental prototype. | Kim, Ye-Rin; Lee, Seung-Yong; Cui, Shenghui; Jung, Jae-Jung | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea; Seoul Natl Univ, Dept Elect & Comp Engn, Seoul, South Korea | 57240497000; 57437158700; 56157479900; 55368433400 | yerin@knu.ac.kr;stock14@knu.ac.kr;cuish@snu.ac.kr;jj.jung@knu.ac.kr; | 2021 24TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2021) | 0.36 | 2025-07-30 | 1 | 1 | Bipolar dc bus; dc distribution; dynamic characteristic; low voltage dc; medium voltage dc; zigzag transformer | POWER CONVERTERS | Bipolar dc bus; dc distribution; dynamic characteristic; low voltage dc; medium voltage dc; zigzag transformer | DC transformers; Electric load flow; Power converters; Timing circuits; Voltage control; Bipolar dc bus; Control dynamic; Dc distribution; DC voltage control; Dynamics characteristic; Low voltage dc; Low voltages; Medium-voltage dc; Voltage DC; Zigzag transformer; Poles | English | 2021 | 2021 | 10.23919/icems52562.2021.9634640 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | Article | Improving the activation energy reliability of insulating materials using non-isothermal thermogravimetric analysis | Measuring the accurate activation energy of the insulating materials used in the HVDC environment is an essential condition for reliable prediction of the accelerated life of the insulating materials, so it is important to select various measurement models and analyze them. The activation energy of PE and PP was measured through five measurement methods through TGA, and the reliability was improved by comparing the results of each condition of the heating rate, the degree of conversion and the reaction order. Excluding the conditions that cause errors, the measured activation energy was measured to be 2% lower than the existing measurement methods, and it is thought that it will be used as a useful basic data in the field of reliability. Copyright © The Korean Institute of Electrical Engineers. | Lee, Heon-Gyeong; Yun, Ung-Hui; Kim, Jin-Gyu | Dept. of Electrical Engineering, Kyungpook National University, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, South Korea; School of Electronic and Electrical Engineering, Department of Electrical Engineering, Kyungpook National University, South Korea | 57210461319; 57295722800; 54680957000 | kjg@knu.ac.kr; | Transactions of the Korean Institute of Electrical Engineers | 1975-8359 | 70 | 10 | 0 | 2025-07-30 | 0 | Activation energy; Chatterjee-Conrad method; Coats-Redfern method; Friedman method; Kissinger method; Ozawa method; Polyethylene; Polypropylene; Thermogravimetric Analyzer | Activation analysis; Insulating materials; Insulation; Polypropylenes; Reliability analysis; Thermogravimetric analysis; Chatterjee-conrad method; Coats-Redfern method; Condition; Friedman method; Kissinger methods; Measurement methods; Nonisothermal; Ozawa method; Polypropylene; Thermogravimetric analyzers; Activation energy | Korean | Final | 2021 | 10.5370/kiee.2021.70.10.1481 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | ○ | Article | In Situ Bypass from the Brachial to Radial Artery in the Anatomical Snuffbox for Limb Salvage in End-Stage Renal Disease | Diabetes and renal failure frequently involved in small vessel arteriopathy. With medical advancements, those patients survive longer with an increasing incidence of resultant arterial occlusive disease affecting the distal upper extremity (UE). In patients with ulcers or gangrene in the distal UE, bypass surgery is often complicated by severe atherosclerosis with calcification, resulting in poor distal anastomosis quality. Here we report a patient with a fingertip gangrene who were successfully treated with in situ bypass from the brachial artery below the elbow to the radial artery in the anatomical snuffbox under local anesthesia. Bypass graft patency was maintained during the 18-month follow-up. If the forearm cephalic vein and radial artery in the anatomical snuffbox are of adequate quality, in situ bypass to radial artery in the anatomical snuffbox may be a useful option for limb salvage in selected patients. | Hwang, Deokbi; Kim, Hyung-Kee | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Div Vasc Surg,Dept Surg, Daegu, South Korea | Kim, Hyung-Kee/JBR-8125-2023 | 57194422879; 35169819900 | hkkim6260@knu.ac.kr; | VASCULAR SPECIALIST INTERNATIONAL | 2288-7970 | 2288-7989 | 37 | 0 | 2025-07-30 | 0 | 0 | Vascular grafting; Ischemia; Upper extremity; Renal insufficiency | Ischemia; Renal insufficiency; Upper extremity; Vascular grafting | acetylsalicylic acid; immunosuppressive agent; insulin; statin (protein); warfarin; adult; aged; amputation; anastomosis; ankle brachial index; Article; atherosclerosis; atrial fibrillation; brachial artery; calcification; case report; cephalic vein; clinical article; coronary artery disease; diabetes mellitus; echography; end stage renal disease; female; follow up; gangrene; hemodialysis; human; hypertension; infection; ischemia; kidney failure; kidney transplantation; limb salvage; middle aged; necrosis; photoelectric plethysmography; pulse wave; recanalization; rheumatoid arthritis; scleroderma; surgical stress; systemic lupus erythematosus; ulnar artery; upper limb | English | 2021 | 2021-12 | 10.5758/vsi.210056 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | In vitro efficacy of N-acetylcysteine in combination with antimicrobial agents against Pseudomonas aeruginosa in canine otitis externa | Pseudomonas aeruginosa is one of the most common pathogenic species associated with canine otitis externa (OE). Their resilience is achieved by forming a biofilm, which allows these bacteria to evade even the harshest of treatments. This study evaluated the in vitro synergistic efficacy of N-acetylcysteine (NAC) with different antimicrobial agents against P. aeruginosa isolated from dogs with OE to develop an effective treatment against P. aeruginosa. The antimicrobial activity was evaluated by the minimum inhibitory concentration test using the microdilution method. The efficacy of antibiofilm formation was evaluated using a crystal violet stain method. The treatment solutions included NAC alone, and in synergy with enrofloxacin, polymyxin B, and gentamicin. NAC alone exhibited antimicrobial and antibiofilm abilities. On the other hand, the combination of NAC and the antibiotics did not show any significant synergistic effects against P. aeruginosa. © 2021 Korean Society of Veterinary Science. All rights reserved. | Son, Youngmin; Bae, Seulgi | Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, South Korea; Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, South Korea | 57226103101; 55418865900 | sgbae@knu.ac.kr; | Korean Journal of Veterinary Research | 2466-1384 | 61 | 2 | 0.37 | 2025-07-30 | 2 | Anti-biofilm; N-acetylcysteine; Otitis externa; Pseudomonas aeruginosa | English | Final | 2021 | 10.14405/kjvr.2021.61.e16 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | In vivo and in vitro efficacy of florfenicol, terbinafine, and mometasone furoate topical otic solution for the treatment of canine otitis externa | This study evaluated the efficacy of a new, single-dose otic solution combining florfenicol, terbinafine, and mometasone furoate for the treatment of canine otitis externa (OE) in vitro and in vivo. Forty-one client-owned dogs with OE were included in the study and divided into a treatment group that received the test solution and a negative control group that received a normal saline solution. On day 0, the dogs were treated either with the test or the control solution and evaluated over 30 days. Clinical efficacy was evaluated by clinical signs and cytological organism counts. In vitro antimicrobial susceptibility was evaluated by the minimum inhibitory concentration (MIC). After treatment with the test solution, clinical signs continuously decreased and cytological scores were significantly reduced. The results of MIC testing showed that the test solution was potent against the common pathogenic causes of canine OE. In this study, the most common causative pathogens were Staphylococcus pseudintermedius, Pseudomonas spp. and Malassezia pachydermatis. No issues related to safety were identified. Based on these results, this new ototopical drug can be used as first line treatment for canine OE. © 2021 The Korean Society of Veterinary Science. | Bae, Seulgi; Jin, Yunseok; Oh, Taeho | Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41556, South Korea; Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41556, South Korea; Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41556, South Korea, Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, 41556, South Korea | 55418865900; 57411559400; 8251199600 | Korean Journal of Veterinary Research | 2466-1384 | 61 | 4 | 0 | 2025-07-30 | 0 | Dogs; Florfenicol; Mometasone furoate; Otitis externa; Terbinafine | English | Final | 2021 | 10.14405/kjvr.2021.61.e37 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | ○ | Article | Incidence and Risk Factors for Sac Expansion after Endovascular Aneurysm Repair of Abdominal Aortic Aneurysms | Purpose: This study aimed to examine the sac changes after endovascular aneurysm repair (EVAR) in patients with abdominal aortic aneurysms. Materials and Methods: We examined the aneurysm sac size initially and regularly after surgery in 157 consecutive patients who underwent EVAR in 2009-2019. Contrast-enhanced computed tomography (CT) scans were used as well as ultrasound images with non-enhanced CT scans in the patients with renal insufficiency. Sac expansion (SE) at 3 years was divided into two categories: progressive SE (PSE) defined as continuous sac enlargement of >= 5 mm on serial follow-up images at 1 and 3 years compared with the initial sac and delayed SE (DSE) defined as re-expansion of >= 5 mm compared with the regressed or stable sac at 1 year. The SE rate at 1 and 3 years and the risk factors for SE at 3 years were analyzed using logistic regression. Results: During a median follow-up of 32.5 months, nine reinterventions in six patients were performed with open conversion (n=5) and endovascular repair (n=4). At 1 year, 112 patients underwent follow-up imaging. SE and sac regression were noted in 4 (3.6%) and 57 (50.9%) patients, respectively. Of the 64 patients with 3-year follow-up images, 16 (25%) exhibited SE (PSE [n=6] and DSE [n=10]). In the multivariable analysis, the risk factors for overall SE at 3 years were endoleaks at 1 year (P=0.006) and renal insufficiency (P=0.003). Conclusion: During post-EVAR follow-up, patients with any endoleak at 1 year or renal insufficiency must be strictly monitored for SE development. | Hwang, Deokbi; Kim, Hyung-Kee; Huh, Seung | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Surg,Div Vasc Surg, Daegu, South Korea | Kim, Hyung-Kee/JBR-8125-2023 | 57194422879; 35169819900; 7101832929 | hkkim6260@knu.ac.kr; | VASCULAR SPECIALIST INTERNATIONAL | 2288-7970 | 2288-7989 | 37 | 0.92 | 2025-07-30 | 8 | 8 | Endovascular aneurysm repair (EVAR); Sac expansion; Risk factors; Renal insufficiency; Endoleak | Endoleak; Endovascular aneurysm repair (EVAR); Renal insufficiency; Risk factors; Sac expansion | anticoagulant agent; contrast medium; abdominal aortic aneurysm; aged; aneurysm diameter; aneurysm size; artery anastomosis; artery ligation; Article; clinical outcome; computed tomographic angiography; contrast enhancement; controlled study; data analysis software; echography; endoleak; endovascular aneurysm repair; female; follow up; human; incidence; kidney failure; laparotomy; major clinical study; male; patient monitoring; postoperative period; retrospective study; risk factor; suture technique | English | 2021 | 2021-12 | 10.5758/vsi.210035 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Incidentally Detected Asymptomatic Perianal Abscess in an Adolescent during Crohn's Disease Diagnosis: Is Routine Pelvic Imaging Required in Korean Pediatric Patients at Diagnosis? | Perianal fistulizing diseases, namely perianal fistulas and/or abscesses, are well-known complications of Crohn's disease (CD). These are known to develop more frequently in Asian children with CD, especially in the early stages of the disease course. Approximately half of the pediatric CD cases in Korea present with perianal fistulizing diseases at diagnosis. We report a rare case of a 12-year-old boy with CD with an incidental discovery of a perianal abscess on pelvic magnetic resonance imaging during CD diagnosis. No symptoms or signs of perianal fistulizing disease were identified. The early diagnosis of the perianal abscess enabled timely and effective treatment. Considering the high incidence of concomitant perianal CD in Korean children at diagnosis, perianal imaging may be useful and should be considered during diagnostic evaluation, even in patients with no subjective or objective findings indicating perianal CD. | Um, Soo Hyun; Lee, Sang Woo; Song, Ki Hwan; Lee, So Mi; Choe, Byung-Ho; Lee, Yoo Min; Kang, Ben | Soonchunhyang Univ, Bucheon Hosp, Dept Pediat, Coll Med, Bucheon, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pediat, 680 Gukchaebosang Ro, Daegu 41944, South Korea; Goo Hosp, Dept Surg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | ; 康, 奔/JMQ-0812-2023; Choe, Byung-Ho/KSM-6251-2024; lee, sangwoo/KUD-1906-2024 | 57356001000; 57369796700; 56404948200; 56824903400; 57574977300; 55588928200; 57194823199 | flana@schmc.ac.kr;benkang@knu.ac.kr; | PEDIATRIC GASTROENTEROLOGY HEPATOLOGY & NUTRITION | PEDIATR GASTROENTERO | 2234-8646 | 2234-8840 | 24 | 6 | ESCI | PEDIATRICS | 2021 | N/A | 0.1 | 2025-07-30 | 3 | 1 | Crohn disease; Abscess; Fistula; Magnetic resonance imaging | INFLAMMATORY-BOWEL-DISEASE; CHILDREN; TRENDS | Abscess; Crohn disease; Fistula; Magnetic resonance imaging | English | 2021 | 2021-11 | 10.5223/pghn.2021.24.6.564 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Proceedings Paper | Indoor Fingerprinting Localization Based on Fine-grained CSI using Principal Component Analysis | With the development of Wi-Fi technology, the IEEE 802.11n series communication protocol and the subsequent wireless LAN protocols use multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) technologies. Channel state information (CSI) fingerprint positioning technology based on fine-grained channel state information is widely used in the field of WIFI indoor positioning. However, the propagation of CSI is still affected by indoor multipath, and we cannot obtain signals in some corner areas. Therefore, CSI needs a suitable calibration method to improve the accuracy of the position estimation system. This paper proposes a fine-grained CSI fingerprint location algorithm based on Principal Component Analysis (PCA). This novel algorithm uses a dimensionality reduction method on the basis of the Discrete Wavelet Transform (DWT) to optimize, eliminate the noise and redundancy of the original data and reduce the positioning error. Experimental results show that the proposed approach achieves significant localization accuracy improvement over using the RSSI fingerprint method and original CSI fingerprint method, while it incurs much less computational complexity. Meanwhile, the algorithm improves the influence of multiple paths in a complex indoor environment on location, and the method can obtain more accurate location results. | Wang, Jingjing; Wang, Xianqing; Peng, Jishen; Hwang, Jun Gyu; Park, Joon Goo | Kyungpook Natl Univ, Elect & Elect Engn, Daegu, South Korea | Wang, Jingjing/GLT-7562-2022 | 57202161515; 57270885600; 57222517328; 55816210200; 24329712800 | wjj0219@naver.com;haongiaong@naver.com;pjs951121@naver.com;cjstk891015@naver.com;jgpark@knu.ac.kr; | 12TH INTERNATIONAL CONFERENCE ON UBIQUITOUS AND FUTURE NETWORKS (ICUFN 2021) | 2165-8528 | 2165-8536 | 1.41 | 2025-07-30 | 7 | 7 | Fine-grained CSI; Fingerprint positioning algorithm; Principal component analysis | Fine-grained CSI; Fingerprint positioning algorithm; Principal component analysis | Channel state information; Discrete wavelet transforms; IEEE Standards; Indoor positioning systems; Location; MIMO systems; Orthogonal frequency division multiplexing; Wireless local area networks (WLAN); Channel-state information; Communications protocols; Fine grained; Fine-grained channel state information; Fingerprint method; Fingerprint positioning algorithm; IEEE 802.11n; Localisation; Positioning algorithms; Principal-component analysis; Principal component analysis | English | 2021 | 2021 | 10.1109/icufn49451.2021.9528612 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: