연구성과로 돌아가기
2020 연구성과 (246 / 270)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | Article | Identification and characterization of unreported penicillium species in korea | Fungal species belonging to the genus Penicillium are indigenous to a wide range of natural environments. Since the first published reports detailing the discovery of Penicillium , new species have been identified in various countries, including Korea. We present here a full characterization of five species of Penicillium that were previously unreported in Korea. Based on the morphologic characteristics and sequences of genes encoding fungal β -tubulin and calmodulin, we identified five Penicillium species, including P. hetheringtonii, P. sublectaticum, and P. jacksonii, which have been unrecorded in Korea, and confirming P. maximae and P. cremeogriseum, as the endophytic fungi isolated in Gyeongsang province, Korea. In this article, we provide detailed morphological descriptions of these fungal species. © 2020 Korean Society of Mycology. All rights reserved. | Choi, Doo-Ho; Kim, Young-Guk; Lee, In-Seon; Hong, Seung-Bum; Kim, Jong-Guk | School of Life Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea; School of Life Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea; Department of Food Science and Technology, Keimyung University, Daegu, 42601, South Korea; Korean Agricultural Culture Collection, National Academy of Agricultural Science, RDA, Suwon, 54874, South Korea; School of Life Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea | 57211275161; 57211274842; 15832174200; 57220740700; 35277198800 | funguy@korea.kr; | Korean Journal of Mycology | 0253-651X | 48 | 4 | 0.1 | 2025-06-25 | 2 | Endophytic fungi; Genus Penicillium; Identification; Morphological description | English | Final | 2020 | 10.4489/kjm.20200043 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Proceedings Paper | Identification of Dementia Related Brain Functional Networks with Minimum Spanning Trees | Neurocognitive impairments such as mild cognitive impairment (MCI), alzheimer's disease (AD) and vascular dementia (VD) effect the functional connectivity across the brain networks that aid proper neurocognitive functioning. Identification of dementia related disorders has remained a challenge due to their overlapping underlying complex structures. In this paper, we analyze the loss of functional connections of dementia networks in comparison with the network of average healthy control (HC) subjects. We then perform the topological quantification of the minimum spanning tree (MST) networks using graph theory metrics to identify the brain functional networks of MCI, AD and VD in comparison with healthy control (HC) subjects. A common reactive band is identified and MST is formed for all the subjects. The MST topological quantifications are used to identify the dementia related disorders based on the data recorded from 10 HC subjects and 30 dementia subjects. Our results show that the proposed approach has the potential to identify the dementia stages and can enhance the diagnosis of dementia related disorders. | Adebisi, Abdulyekeen T.; Gonuguntla, Venkateswarlu; Lee, Ho-Won; Veluvolu, Kalyana C. | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea; Samsung Med Ctr, Med Sci Res Inst, Seoul, South Korea; Kyungpook Natl Univ Hosp, Neurol & Neurosurg Ctr, Daegu, South Korea | Gonuguntla, Venkateswarlu/AAH-5239-2021; Veluvolu, Kalyana/C-6366-2011 | 57220004878; 55696595000; 35337240700; 8703318200 | veluvolu@ee.knu.ac.kr; | 2020 IEEE INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICINE | 2156-1125 | 2156-1133 | 0.23 | 2025-06-25 | 1 | 2 | Electroencephalogram (EEG); Dementia; Mutual Information (MI); Reactive Band; Functional Connectivity; Graph Theory; Minimum Spanning Tree (MST) | CONNECTIVITY | Dementia; Electroencephalogram (EEG); Functional Connectivity; Graph Theory; Minimum Spanning Tree (MST); Mutual Information (MI); Reactive Band | Bioinformatics; Diagnosis; Graph algorithms; Topology; Trees (mathematics); Alzheimer's disease; Brain functional networks; Complex structure; Functional connection; Functional connectivity; Mild cognitive impairments (MCI); Minimum spanning trees; Vascular dementia; Neurodegenerative diseases | English | 2020 | 2020 | 10.1109/bibm49941.2020.9313223 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | Identification of the MMP-1 regulation mechanism of benzopyrene, polycyclic aromatic hydrocarbons in foods | Benzo[a]pyrene-7,8-diol-9,10-epoxide (B[a]PDE) has been reported to cause various pathological lesions in humans via activation of the aryl hydrocarbon receptor (AhR) pathway. However, the molecular mechanism by which B[a]PDE regulates signaling pathways during skin aging remains unclear. The present study investigated the effects of B[a]PDE on the expression of matrix metalloproteinase-1 (MMP-1), which is a major enzyme responsible for collagen damage, and its regulation of skin aging-related signaling pathways in HaCaT human keratinocyte cells. MMP-1 expression was increased by B[a]PDE treatment, and mitogen-activated protein kinase (MAPK) inhibitors suppressed B[a]PDE-induced MMP-1 expression. Furthermore, a-naphthoflavone (a-NF, AhR antagonist), PP2 (c-Src inhibitor), and gefitinib (EGFR inhibitor) attenuated the B[a]PDE-induced phosphorylation of and p38 and their upstream kinases such as c-Raf, MEK, and MKK3/6. These results suggest that AhR, c-Src, and epidermal growth factor receptor (EGFR) activations are necessary for B[a]PDE-induced MMP-1 upregulation by modulation of MAPK pathway activation. B[a]PDE also stimulates the phosphorylation of ERK via c-Src-dependent EGFR transactivation. These results demonstrate a novel mechanism by which B[a]PDE induces MMP-1 expression through the activation of AhR, c-Src, and EGFR in non-genetic pathways. Thus, it is indicated that the molecular mechanisms of MMP-1 expression by B[a]PDE-activated AhR play an important role in promoting skin aging. Copyright © The Korean Society of Food Preservation. | Han, Chang Hee; Kang, Nam Joo | School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea; School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, South Korea, Department of Integrative Biology, Kyungpook National University, Daegu, 41566, South Korea | 57219442915; 8315288500 | njkang@knu.ac.kr; | Korean Journal of Food Preservation | 1738-7248 | 27 | 5 | 0 | 2025-06-25 | 1 | 10-epoxide; 8-diol-9; Benzo[a]pyrene-7; C-Src kinase; Human keratinocytes; Matrix metalloproteinase-1 | English | Final | 2020 | 10.11002/kjfp.2020.27.5.627 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Conference paper | IEEE 802.11 WLAN based Indoor Positioning Algorithm using Weight Grey Prediction Model | The accuracy and stability of indoor location method based on received signal strength indication (RSSI) decrease due to multipath effect of wireless signal. 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) and other technologies. WI-FI using CSI technology has emerged as a new paradigm of indoor positioning service (IPS). However, the propagation of RSSI and CSI is still affected by indoor multiple paths, and we cannot obtain signals in some corner areas. Therefore, RSSI and CSI need a good calibration method to improve the accuracy of the position estimation system. In this paper, we propose a RSSI and CSI based indoor positioning method. In this method, CSI of physical layer combined with RSSI is used as reference information to reduce multipath attenuation of signal receiver. On this basis, the weighted gray prediction model is used for data processing to reduce the time variability of the received signal. Finally, this method combines with trilateration algorithm to further reduce positioning error. This paper also provides experimental comparisons of our proposed data generation method with existing indoor positioning methods. Experimental results show that the proposed data generation method can significantly improve the positioning accuracy, reduce the computational complexity, and have a better indoor positioning effect than using an effective CSI positioning method. Meanwhile, the proposed method also can obtain more accurate positioning results in corner areas of the indoor environment where WIFI signals cannot be obtained. © 2020 IEEE. | Wang, Jingjing; Park, Joon Goo | Kyungpook National University, Electronic and Electrical Engineering, Daegu, South Korea; Kyungpook National University, Electronic and Electrical Engineering, Daegu, South Korea | 57202161515; 24329712800 | Proceedings - 2020 IEEE 22nd International Conference on High Performance Computing and Communications, IEEE 18th International Conference on Smart City and IEEE 6th International Conference on Data Science and Systems, HPCC-SmartCity-DSS 2020 | 0 | 2025-06-25 | 0 | Channel state information; Grey prediction model; Indoor Positioning; Received Signal Strength Indicator; Trilateration | Data communication systems; Data reduction; Indoor positioning systems; MIMO systems; Orthogonal frequency division multiplexing; Position measurement; Predictive analytics; Signal receivers; Smart city; Wi-Fi; Wireless local area networks (WLAN); Experimental comparison; Gray prediction models; Grey prediction model; Multipath attenuation; Position estimation system; Positioning accuracy; Positioning methods; Received signal strength indication; IEEE Standards | English | Final | 2020 | 10.1109/hpcc-smartcity-dss50907.2020.00150 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Article | Imaging diagnosis of emphysematous pyelonephritis in a non-diabetic dog | An 11-year-old, 4.3 kg, mixed breed, intact female dog exhibiting vomiting and a reduced appetite was presented. On physical examination, palpation of the right kidney elicited discomfort. Blood analysis revealed leukocytosis with neutrophilia, and elevation of alkaline phosphatase and blood urea nitrogen. Escherichia coli was detected in urine culture, whereas urine analysis showed absence of glucose. Radiography and ultrasonography suggested that there was gas in the right renal parenchyma, and computed tomography was performed while the dog was awake to investigate the suspected gas in the right kidney. After unilateral ureteronephrectomy, a histological diagnosis of right emphysematous pyelonephritis (EPN) was made. EPN refers to a severe necrotizing infection of the renal parenchyma with gas accumulation in the tissue. It is rare in both human and veterinary medicine, and almost all EPN patients have uncontrolled diabetes mellitus. This case report describes the imaging-based diagnosis of a rare occurrence of unilateral EPN in a non-diabetic dog. © 2020, Korean Society of Veterinary Clinics. All rights reserved. | Kim, Heesu; Lee, Kija; Chung, Jinyoung; Ahn, Jinok; Park, Inchul; Choi, Sooyoung | College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, South Korea; College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, South Korea; College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, South Korea; College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, South Korea; College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, South Korea; College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, South Korea | 57218870574; 35311016000; 56809978700; 39261063600; 55721568100; 55736574600 | choisooyoung@kangwon.ac.kr; | Journal of Veterinary Clinics | 1598-298X | 37 | 4 | 0 | 2025-06-25 | 1 | Canine; Computed tomography; Emphysematous pyelonephritis; Non-diabetic dog; Radiography | alkaline phosphatase; cefalotin; enrofloxacin; phosphorus; urobilinogen; alkaline phosphatase level; animal experiment; animal tissue; anorexia; Article; blood analysis; blood cell count; computer assisted tomography; decreased appetite; dehydration; diabetes mellitus; diarrhea; dog; echography; emphysematous pyelonephritis; Escherichia coli; female; follow up; gas; hemoglobinuria; hypertransaminasemia; imaging; inflammation; inflammatory infiltrate; kidney abscess; kidney parenchyma; leukocyte; leukocytosis; lymphocytosis; multidetector computed tomography; nephrolithiasis; nephroureterectomy; neutrophilia; nonhuman; palpation; phosphate blood level; physical examination; proteinuria; pyelonephritis; radiography; relative density; stone formation; thrombocytopenia; urea nitrogen blood level; ureter stone; urinalysis; urine culture; vomiting | English | Final | 2020 | 10.17555/jvc.2020.08.37.4.231 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Article | Imatinib and GNF-5 Exhibit an Inhibitory Effect on Growth of Hepatocellar Carcinoma Cells by Downregulating S-phase Kinase-associated Protein 2 | Hepatocellular carcinoma (HCC) is the most common primary liver cancer and is one of the leading causes of cancer-related deaths worldwide. Imatinib and GNF-5 are breakpoint cluster region-Abelson murine leukemia tyrosine kinase inhibitors which have been approved for the treatment of chronic myeloid leukemia and various solid tumors. However, the effect and underlying mechanisms of imatinib and GNF-5 in HCC remain poorly defined. In this study, we investigated the anticancer activity and underlying mechanisms of imatinib and GNF-5 in HepG2 human hepatocarcinoma cells. Cell proliferation and anchorage-independent colony formation assays were done to evaluate the effects of imatinib and GNF-5 on the growth of HepG2 cells. The cell cycle was assessed by flow cytometry and verified by immunoblot analysis. Gene overexpression and knockdown assays were conducted to evaluate the function of S-phase kinase-associated protein 2 (Skp2). Imatinib and GNF-5 significantly inhibited the growth of HepG2 cells. Imatinib and GNF-5 induced G0/G1 phase cell cycle arrest by downregulating Skp2 and upregulating p27 and p21. Overexpression of Skp2 reduced the effect of imatinib and GNF-5 on HepG2 cells. Knockdown of Skp2 suppressed the proliferation and induced GO/ G1 phase arrest. Furthermore, knockdown of Skp2 enhanced the effect of imatinib and GNF-5 on growth of HepG2 cells. In conclusion, imatinib and GNF-5 effectively suppress HepG2 cell growth by inhibiting Skp2 expression. Skp2 promotes the cell proliferation and reverse G0/G1 phase cell cycle arrest and it represents a potential therapeutic target for HCC treatment. | Zhang, Haibo; Yi, Junkoo; Yoon, Duhak; Ryoo, Zaeyoung; Lee, Inkyu; Kim, Myoungok | Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju, South Korea; Gyeongsangbukdo Livestock Inst Res, Yeongju, South Korea; Kyungpook Natl Univ, Sch Life Sci, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biochem, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Cell Biol, Daegu, South Korea | ; Yi, Junkoo/JBR-8507-2023 | ok4325@knu.ac.kr; | JOURNAL OF CANCER PREVENTION | J CANCER PREV | 2288-3649 | 2288-3657 | 25 | 4 | ESCI | ONCOLOGY | 2020 | N/A | 8 | Hepatocellular carcinoma; Cell cycle; S-phase kinase-associated protein 2; Imatinib; GNF-5 | BCR-ABL; SKP2; DEGRADATION; CANCER; PROLIFERATION; HEPATITIS | English | 2020 | 2020-12 | 10.15430/jcp.2020.25.4.252 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Proceedings Paper | Impact of Seasonality on Quorum Quenching Efficacy and Stability for Biofouling Control in Membrane Bioreactors | Low temperatures produce more biopolymers, leading to severe biofouling. Moving QQ sheets mitigate biofouling under cold weather conditions. QQ activities drop sharply with decreasing water temperatures. QQ sheets remain active during long-term field tests using real wastewater. QQ sheets have no impact on activated sludge treatment performance. | Lee, Kibaek; Park, Jun-Seong; Iqbal, Tahir; Nahm, Chang Hyun; Park, Pyung-Kyu; Choo, Kwang-Ho | Kyungpook Natl Univ, Adv Inst Water Ind, Daegu, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea; Yonsei Univ, Dept Environm Engn, Seoul, South Korea | ; Choo, Kwang-Ho/A-3456-2016 | 55845961700; 57204468826; 57202130500; 57119378200; 7202425104; 7102083272 | lee-male@hanmail.net;js-park2015@naver.com;engrtahir5@gmail.com;nemcheng@hotmail.com;pkpark@yonsei.ac.kr;chookh@knu.ac.kr; | FRONTIERS IN WATER-ENERGY-NEXUS NATURE-BASED SOLUTIONS, ADVANCED TECHNOLOGIES AND BEST PRACTICES FOR ENVIRONMENTAL SUSTAINABILITY | 2522-8714 | 2522-8722 | 0.39 | 2025-06-25 | 1 | 1 | Cold climate; Long-term stability; Quorum quenching activity; Quorum quenching media; Seasonal variation | BACTERIA | Cold climate; Long-term stability; Quorum quenching activity; Quorum quenching media; Seasonal variation | English | 2020 | 2020 | 10.1007/978-3-030-13068-8_44 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Article | Impact of Social Exclusion Type and Presence of Others on On-going Purchase Intention When Purchasing Fashion Luxury Goods -Moderating Effect of Self-efficacy- | This study investigates the influence of social exclusion type and presence of others on consumers’ on-going purchase intention when purchasing fashion luxury goods. This study also identifies the moderating role of self-efficacy in which the interaction effect of social exclusion type and presence of others on on-going purchase intention. For the experiment, 2(social exclusion type: being ignored vs being rejected)×2(presence of others: presence vs absence)×2(self-efficacy: high vs low) factorial design was used. The findings of this study are summarized as follows. First, the result showed that there was no difference in on-going purchase intention according to social exclusion type. Second, the result showed that there was a significant interaction effect between social exclusion type and presence of others. Third, the three-way interaction effect of social exclusion type, presence of others, and self-efficacy was statistically significant. The results of this study provide useful information on which direction is needed to mitigate negative consumer behavior caused by social exclusion at the service interface. © 2020, The Korean Society of Clothing and Textiles. All rights reserved. | Park, Hyun Hee; Jeon, Jung Ok | Dept. of Fashion Design, Kyungpook National University, Div. of Business Administration, Pukyong National University, South Korea; Dept. of Fashion Design, Kyungpook National University, Div. of Business Administration, Pukyong National University, South Korea | 56155667400; 7202411393 | jojeon@pknu.ac.kr; | Journal of the Korean Society of Clothing and Textiles | 1225-1151 | 44 | 5 | 0 | 2025-06-25 | 0 | Luxury fashion shopping; On-going purchase intention; Presence of others; Self-efficacy; Social exclusion type | Korean | Final | 2020 | 10.5850/jksct.2020.44.5.878 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Proceedings Paper | Impact of Variability Issues of Resistive Memory Synapses on Pattern Recognition Systems | Neuromorphic systems heavily rely on multiply-accumulate (MAC) operations to recognize image patterns. The computation performed repeatedly can be speeded up by a cross-point array. In the architecture, a weight storage element should consist of resistive memory and additional selector. To evaluate the recognition accuracy of handwritten digits, we construct cross-point arrays in simulation with the 2-bit weights obtained from Ta2O5 based resistive memory experimentally connected in series with multi tunnel-barrier selector. Based on the high accuracy close to 95 % obtained from quantized convolutional neural networks, how the accuracy is related to non-ideal factors that can be generated from array and device is studied. | Woo, Jiyong; Lee, Miyoung; Kim, Jeong Hun; Im, Jong-Pil; Im, Solyee; Kim, Yeriaron; Moon, Seung Eon; Lee, Joohyun | Elect & Telecommun Res Inst, ICT Creat Res Lab, Gwangju, South Korea; Elect & Telecommun Res Inst, Artificial Intelligence Res Lab, Gwangju, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea | 53985749100; 55902262800; 57194613724; 57204538127; 57218167297; 57207444978; 7401616067; 53063894700 | jiyong.woo@knu.ac.kr; | 2020 17TH INTERNATIONAL SOC DESIGN CONFERENCE (ISOCC 2020) | 2163-9612 | 0 | 2025-06-25 | 0 | 0 | Resistive memory synapse; neuromoprhic computing | DEVICES | neuromoprhic computing; Resistive memory synapse | Character recognition; Convolutional neural networks; Programmable logic controllers; Cross-point array; Handwritten digit; Image patterns; Multiply-accumulate operation; Neuromorphic systems; Recognition accuracy; Resistive memory; Storage elements; Pattern recognition systems | English | 2020 | 2020 | 10.1109/isocc50952.2020.9333029 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Conference paper | Implementation of Computation-Efficient Sensor Network for Kalman Filter-based Intelligent Position-Aware Application | Most edge nodes operate under limited power conditions for reasons of unstable power supply or small battery capacity. Therefore, computations running on edge nodes need to be lightweight. There are extensive usages of the Kalman filter, this paper presents the implementation of a computation-efficient IoT sensor network which tracking the moving target with the Kalman filter. Rather than improving the Kalman filter itself, the Kalman filter operation performed at each node varies performance based on the information being sensed. The nodes are decreasing their data receiving interval according to the distance between the target and each node. Also, we use an arithmetic approximation with changing precision when receiving the target information. The presented computation-efficient sensor network evaluated under MATLAB simulation environment to prove its lower computation amount. Evaluation showed that the computation time at each node was reduced by 17.7% on average compared to the conventional sensor network followed by nodes with a fixed behavior. Besides, despite the cost of arithmetic approximation, the edge node estimates the velocity of the target with reasonable accuracy. Based on this result, this paper suggests that decreasing the computation load of whole sensor network by varying each node's calculation with a macro perspective. © 2020 IEEE. | Kwon, Jisu; Park, Daejin | School of Electronics Engineering, Kyungpook National University, Daegu, 41566, South Korea; School of Electronics Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57215531728; 55463943600 | boltanut@knu.ac.kr; | 2020 International Conference on Artificial Intelligence in Information and Communication, ICAIIC 2020 | 0.3 | 2025-06-25 | 3 | calculation load; Kalman filter; target tracking; velocity estimation | Artificial intelligence; Computational efficiency; MATLAB; Sensor networks; Sensor nodes; Arithmetic approximation; Computation loads; Conventional sensors; Filter operations; Matlab simulations; Position-aware applications; Reasonable accuracy; Target information; Kalman filters | English | Final | 2020 | 10.1109/icaiic48513.2020.9065098 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | ○ | Article | Importance of pulmonary valve morphology for pulmonary valve preservation in tetralogy of Fallot surgery: comparison of the echocardiographic parameters | Background: The decision to use transannular patching (TAP) during tetralogy of Fallot (TOF) repair depends on the pul--monary valve annulus size; the z score of the pulmonary annulus is the most commonly used predictor. However, definitive results are not obtained with z scores as different z score data sets are used for different parameters. Purpose: This study aimed to identify the echocardiographic and other key factors that warranted a change in the surgical method during TOF surgery. Methods: Sixty-two patients were enrolled and divided into a pulmonary valve (PV) preservation group and a TAP group. Their medical records were reviewed. Results: The z score for PV annulus (PVA), ratio of the PVA to aortic annulus size, and ratio of PVA to descending aorta (DAO) size were significantly different between the PV preservation and TAP groups (-1.72 +/- 1.52 vs. -3.07 +/- 1.94, P=0.004; 0.62 +/- 0.12 vs. 0.50 +/- 0.14, P=0.002; and 1.32 +/- 0.32 vs. 1.07 +/- 0.36, P= 0.008, respectively). For TAP repair, the PVA z score had a sensitivity of 65.4% and specificity of 73.1%, ratio of PVA to aortic annulus size had a sensitivity of 73.1% and specificity of 65.4%, and ratio of PVA to DAO size had a sensitivity of 69.2% and specificity of 57.7%. The TAP group showed more monocuspid PVs (P=0.011), while the PV preser-va-tion group showed more tricuspid PVs (P=0.027). Com-missurotomy was more frequently performed in the PV preservation group than in the TAP group (P=0.001). Of patients with commissurotomy, 58% showed a PV z score<-2. Conclusion: Although various echocardiographic parameters may serve as predictors for determining surgical methods for TOF patients, the PV morphology and tissue characteristics should also be considered. | Choi, Su Jin; Kwon, Jung Eun; Roh, Da Eun; Hyun, Myung Chul; Jung, Hanna; Lee, Young Ok; Cho, Joon Yong; Kim, Yeo Hyang | Kyungpook Natl Univ, Kyungpook Natl Univ Childrens Hosp, Sch Med, Div Pediat Cardiol,Dept Pediat, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Thorac & Cardiovasc Surg, Daegu, South Korea | ; Jung, Hanna/Y-4165-2019 | 57223972405; 57194002366; 57195734230; 8704315000; 56467570700; 36461117600; 57195637434; 57032023800 | kimyhmd@knu.ac.kr; | CLINICAL AND EXPERIMENTAL PEDIATRICS | 2713-4148 | 63 | 5 | 0.82 | 2025-06-25 | 11 | 8 | Echocardiography; Pulmonary valve; Surgery; Tetralogy of Fallot | Echocardiography; Pulmonary valve; Surgery; Tetralogy of Fallot | aortic clamping; arteriotomy; Article; Blalock Taussig shunt; cardiovascular parameters; cesarean section; cohort analysis; comparative study; computer assisted tomography; controlled study; descending aorta; echocardiography; EuroSCORE; Fallot tetralogy; female; follow up; heart left ventricle ejection fraction; heart valve commissurotomy; human; left pulmonary artery; length of stay; lung artery pressure; major clinical study; male; overall survival; palliative therapy; peak expiratory flow; postoperative period; pulmonary valve; radiological parameters; retrospective study; sensitivity and specificity; surgical mortality; thorax radiography; transesophageal echocardiography; transthoracic echocardiography | English | 2020 | 2020-05 | 10.3345/kjp.2019.01060 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Conference paper | Improve IoT Streaming QoS by Determining the Message Propotion in CoAP | Recently the Internet of Things (IoT) have gain much attention and, therefore, the demands for various streaming applications based on the IoT have increased. In this regard, the Constrained Application Protocol (CoAP) is a lightweight transmission protocol widely used in the IoT environment for providing streaming services. Generally, the CoAP protocol defines two message types i.e. confirmable message and non-confirmable message. However, since CoAP is not originally a transmission protocol design for streaming applications. Therefore, it cannot guarantee the reliability and real-time performance when streaming media is transmitted over it. In this paper, we propose a method to improve the QoS of streaming media transmission by dynamically changing the proportion of confirmable messages and non-confirmable messages. As the network conditions gradually gets better, the proposed method appropriately reduces the proportion of confirmable messages to meet the real-time requirements of streaming media. Finally, the simulation results show that the proposed scheme significantly enhances the QoS of the CoAP protocol for streaming service. © 2020 IEEE. | Yang, Ru; Lee, Sungwon; Seo, Junho; Khan, Murad; Kim, Dongkyun | School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea; Institutional Research Center, Kyungpook National University, Daegu, South Korea; School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea; School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea; School of Computer Science Engineering, Kyungpook National University, Daegu, South Korea | 57222271049; 57219637666; 57208740581; 56151971600; 35753648800 | Proceedings - 2020 International Conference on Networking and Network Applications, NaNA 2020 | 0.36 | 2025-06-25 | 2 | CoAP; IoT; Multi-media Streaming; QoS | Internet of things; Constrained Application Protocol (CoAP); Internet of thing (IOT); Network condition; Real time performance; Real time requirement; Streaming applications; Streaming service; Transmission protocols; Media streaming | English | Final | 2020 | 10.1109/nana51271.2020.00014 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Article | Improved Electrochemical and Mechanical Properties of Poly(vinylpyrrolidone)/Nafion® Membrane for Fuel Cell Applications | A novel blend of membranes made of Nafion (R) and poly(vinylpyrrolidone) (PVP) was prepared and characterized to investigate its applicability in proton exchange membrane fuel cells (PEMFCs). In addition to being effectively proton conductive, the membranes exhibited better mechanical strength, chemical stability, and adequate water retention ability, as well as ion exchange capacity comparable to that of cast Nafion (R) membrane. The data obtained from an electrochemical impedance spectroscopy (EIS) fitting of the fuel cells revealed the membrane electrode assemblies (MEAs) made of 0.5 wt.% PVP/Nafion (R) had lower ohmic and charge transfer resistance compared with that of the Nafion (R) membrane. The intermolecular interactions and morphology of these membranes were assessed using Fourier-transform infrared spectroscopy and field-emission scanning electron microscopy. The results of the performance curve indicate that the introduction of PVP as a modifier played a vital role in improving membrane performance. Accordingly, this solution-casted polymer electrolyte membrane with suitable PVP content offers a simple way to improve electrochemical, mechanical, and chemical properties, and thereby promises the prospect of use in low-temperature PEMFCs. | Kabir, M. D. Lutful; Paul, Subir; Choi, Sang-June; Kim, Hee Jin | Kyungpook Natl Univ, Dept Architectural Civil Environm Engn, 80 Daehakro, Daegu 41566, South Korea | Kim, Heejin/HII-8568-2022; Paul, Subir/AAQ-9232-2021 | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 1533-4880 | 1533-4899 | 20 | 12 | 7 | PVP; Proton Conductivity; PEMFC; Durability; Mechanical Properties | COMPOSITE MEMBRANES; POLY(VINYL PYRROLIDONE); DEGRADATION; ALCOHOL); BLENDS; PVP | English | 2020 | 2020-12 | 10.1166/jnn.2020.18979 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | Article | Improved Output Voltage of a Nanogenerator with 3D Fabric | Electrically enhanced triboelectric nanogenerators (TENGs) using 3D fabrics and polydimethylsiloxane (PDMS) are suggested for next-generation wearable electronics. TENGs with fabric fabric fabric (FFF) and PDMS fabric PDMS (PFP) structures were fabricated with ordinary 2D fabrics and honeycomb-like 3D fabrics. A 3D fabric TENG with an FFF structure showed an output voltage of 7 V, 7 times higher than a 2D fabric FFF structured TENG. Interestingly, an extremely high output voltage of 240 V was achieved by a 3D fabric PFP structured TENG. This was attributed to the high surface frictional triboelectric effect between fabric and PDMS and also marginal 3D structure in the 3D fabric active layer. | Kim, Do-Kyung; Jeong, Jae Bum; Lim, Kyungmin; Ko, Jaehoon; Lang, Philippe; Choi, Muhan; Lee, Sohee; Bae, Jin-Hyuk; Kim, Hyeok | Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Korea Inst Ind Technol, 89 Yangdaegiro Gil, Cheonan Si 31056, Chungcheongnam, South Korea; Gyeongsang Natl Univ, Engn Res Inst, Dept Elect Engn, 501 Jinjudaero, Jinju 52828, Gyeongnam, South Korea; Univ Paries Diderot, CNRS UMR Paris 7086 7, Lab Interfaces Traitements Org & DYnam Syst ITODY, F-75013 Paris, France; Gyeongsang Natl Univ, Res Inst Nat Sci, Dept Clothing & Text, 501 Jinjudaero, Jinju 52828, Gyeongnam, South Korea; Univ Seoul, Dept Elect & Comp Engn, 163 Seoulsiripdaero, Seoul 02504, South Korea | Kim, Ji-Youn/A-5779-2017; Kim, Kyoungmi/AEP-3965-2022; lang, philippe/E-5192-2012 | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 1533-4880 | 1533-4899 | 20 | 8 | 7 | Triboelectric Nanogenerator; 3D-Fabric; Elastomer; Output Voltage | TRIBOELECTRIC NANOGENERATORS; ENERGY; TEXTILE; GENERATORS | English | 2020 | 2020-08 | 10.1166/jnn.2020.17803 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | Conference paper | Improvement of inter-protocol fairness for BBR congestion control using machine learning | In 2016, Google proposed the bottleneck bandwidth round-trip propagation time (BBR) as a new congestion control algorithm for improving network speed. As BBR has different behavioral characteristics from loss-based congestion control, it must ensure the coexistence between congestion control algorithms. However, throughput imbalance has been reported in a competition between BBR and loss-based congestion control. In this paper, we propose an opponent congestion control identification model of BBR (OI-BBR) with machine learning to improving inter-protocol fairness. In the emulation experiments, we confirmed that OI-BBR based on the proposed model improved the inter-protocol fairness by operating differently according to the opponent congestion control algorithms. © 2020 IEEE. | Kim, Geon-Hwan; Song, Yeong-Jun; Cho, You-Ze | School of Electronics Engineering, Kyungpook National University, Daegu, South Korea; School of Electronics Engineering, Kyungpook National University, Daegu, South Korea; School of Electronics Engineering, Kyungpook National University, Daegu, South Korea | 57189040274; 57210919165; 7404469829 | 2020 International Conference on Artificial Intelligence in Information and Communication, ICAIIC 2020 | 1.19 | 2025-06-25 | 10 | BBR; congestion control; Google; inter-protocol fairness; machine learning | Machine learning; Behavioral characteristics; Bottleneck bandwidth; Identification model; Network speed; Propagation time; Protocol fairness; Round trip; Traffic congestion | English | Final | 2020 | 10.1109/icaiic48513.2020.9065259 | 바로가기 | 바로가기 |
페이지 이동: