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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 | Identification of One Major QTL and a Novel Gene OsIAA17q5 Associated with Tiller Number in Rice Using QTL Analysis | Rice tillers are one of the most important traits for the yield and development of rice, although little is known about its mode of inheritance. Tiller numbers were recorded every 7 days a total of nine times, starting 30 days after transplantation. Quantitative trait locus (QTL) based analysis on a set of double haploid population derivatives of a cross between the Cheongcheong and Nagdong varieties identified a major effect of locus RM18130-RM3381 on chromosome 5, which was expressed in eight different growth stages. Within the target region RM18130-RM3381 (physical distance: 2.08 Mb), 61 candidate genes were screened by annotation. Among the candidate genes, Os05g0230700 (named OsIAA17q5), which belongs to the family of auxin-responsive genes, was selected as a target. Auxin promotes cell division and meristem maintenance and is an effective plant regulator which influences plant growth and development by altering the expression of various genes. OsIAA17q5 is expected to control the number of tillers. The present study provides further understanding of the basic genetic mechanisms that selectively express the control of tiller numbers in different growth stages, as well as provides valuable information for future research aimed at cloning the target gene. These results may contribute to developing a comprehensive understanding of the basic genetic processes regulating the developmental behavior of tiller numbers in rice. | Zhao, Dan-Dan; Park, Jae-Ryoung; Jang, Yoon-Hee; Kim, Eun-Gyeong; Du, Xiao-Xuan; Farooq, Muhammad; Yun, Byoung-Ju; Kim, Kyung-Min | Kyungpook Natl Univ, Sch Appl Biosci, Div Plant Biosci, Coll Agr & Life Sci, Daegu 41566, South Korea; Rural Dev Adm, Natl Inst Crop Sci, Crop Breeding Div, Wonju 55365, South Korea; Kyungpook Natl Univ, Coastal Agr Res Inst, Daegur 41566, South Korea; Natl Inst Agr Sci, Biosafety Div, Jeonju 54874, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Coll IT Engn, Daegu 41566, South Korea | ; Kim, Kyung-Min Kim/C-7007-2014; ZHAO, DANDAN/HIK-2130-2022 | 57459517300; 57211205505; 57219901992; 57221496070; 57209098077; 57215544380; 7006416932; 34868260300 | qx288mm@naver.com;icd92@naver.com;uniunnie@naver.com;dkqkxk632@naver.com;haobingshuaike@hotmail.com;mfarooqsr@gmail.com;bjisyun@knu.ac.kr;kkm@knu.ac.kr; | PLANTS-BASEL | 2223-7747 | 11 | 4 | 1.83 | 2025-06-25 | 14 | 15 | rice yield; tiller number; quantitative trait locus; auxin; growth stage | QUANTITATIVE TRAIT LOCI; AUXIN RESPONSE; DROUGHT TOLERANCE; FAMILY; RESISTANCE; DWARF | Auxin; Growth stage; Quantitative trait locus; Rice yield; Tiller number | English | 2022 | 2022-02 | 10.3390/plants11040538 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Identification of the OsCML4 Gene in Rice Related to Salt Stress Using QTL Analysis | Soil salinity is a major abiotic stress that causes disastrous losses in crop yields. To identify favorable alleles that enhance the salinity resistance of rice (Oryza sativa L.) crops, a set of 120 Cheongcheong Nagdong double haploid (CNDH) lines derived from a cross between the Indica variety Cheongcheong and the Japonica variety Nagdong were used. A total of 23 QTLs for 8 different traits related to salinity resistance on chromosomes 1-3 and 5-12 were identified at the seedling stage. A QTL related to the salt injury score (SIS), qSIS-3b, had an LOD score of six within the interval RM3525-RM15904 on chromosome 3, and a phenotypic variation of 31% was further examined for the candidate genes. Among all the CNDH populations, five resistant lines (CNDH 27, CNDH 34-1, CNDH 64, CNDH 78, and CNDH 112), five susceptible lines (CNDH 52-1, CNDH 67, CNDH 69, CNDH 109, and CNDH 110), and the parent lines Cheongcheong and Nagdong were selected for relative gene expression analysis. Among all the genes, two candidate genes were highly upregulated in resistant lines, including the auxin-responsive protein IAA13 (Os03g0742900) and the calmodulin-like protein 4 (Os03g0743500-1). The calmodulin-like protein 4 (Os03g0743500-1) showed a higher expression in all the resistant lines than in the susceptible lines and a high similarity with other species in sequence alignment and phylogenetic tree, and it also showed a protein-protein interaction with other important proteins. The genes identified in our study will provide new genetic resources for improving salt resistance in rice using molecular breeding strategies in the future. | Asif, Saleem; Kim, Eun-Gyeong; Jang, Yoon-Hee; Jan, Rahmatullah; Kim, Nari; Asaf, Sajjad; Lubna; Farooq, Muhammad; Kim, Kyung-Min | Kyungpook Natl Univ, Grad Sch, Dept Appl Biosci, Daegu 41566, South Korea; Kyungpook Natl Univ, Coastal Agr Res Inst, Daegu 41566, South Korea; Univ Nizwa, Nat & Med Sci Res Ctr, Nizwa 616, Oman; Abdul Wali Khan Univ, Dept Bot, Garden Campus, Mardan 23200, Pakistan | ; Asaf, Sajjad/ABA-3647-2021; Kim, Jung-Wook/AAI-1668-2020; Jan, Rahmatullah/AIC-3439-2022; Kim, Kyung-Min Kim/C-7007-2014 | 57396413700; 57221496070; 57219901992; 57201981969; 57395985700; 56595059900; 57200621537; 57215544380; 34868260300 | kkm@knu.ac.kr; | PLANTS-BASEL | 2223-7747 | 11 | 19 | 1.1 | 2025-06-25 | 9 | 9 | QTL; salinity; Cheongcheong Nagdong double haploid; calmodulin-like protein; rice seedling | CALMODULIN-LIKE GENES; ORYZA-SATIVA L.; SALINITY TOLERANCE; EXPRESSION ANALYSIS; AUX/IAA; RESPONSES; FAMILY; GROWTH; PLANTS; ACID | calmodulin-like protein; Cheongcheong Nagdong double haploid; QTL; rice seedling; salinity | English | 2022 | 2022-10 | 10.3390/plants11192467 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Illnesses and Symptoms in Older Adults at the End of Life at Different Places of Death in Korea | Context: A comprehensive plan has been launched by the Korean government to expand hospice and palliative care from hospital-based inpatient units to other services, such as palliative care at home, palliative consultation, and palliative care at a nursing home. Objective: To examine the illnesses and symptoms at the end of life associated with the place of death among older Korean adults. Methods: This secondary data analysis included a stratified random sample of 281 adults identified from the exit survey of the Korean Longitudinal Study of Aging aged >= 65 years and who died in 2017-2018. Results: Overall, 69% of the patients died at hospitals, 13% died at long-term care facilities (LTCF), and 18% died at home. In the multinomial logistic regression analysis adjusting for age, sex, and marital status, older adults who died in the hospital had higher odds (2.02-4.43 times) of having limitations in activities of daily living (ADL) as well as symptoms of anorexia, depression, weakness, dyspnea, and periodic confusion 1 month before death than those who died at home. Older adults who died in an LTCF were more likely to have limitations in ADL and instrumental ADL as well as a higher likelihood (2-5 times) of experiencing pain, anorexia, fatigue, depression, weakness, dyspnea, incontinence, periodic confusion, and loss of consciousness than those who died at home. Conclusion: Since the majority of subjects died either in a hospital or an LCTF, and this proportion is expected to increase, policy planning should focus on improving the palliative case in these settings. Future policies and clinical practices should consider the illness and symptoms of older patients at the end of life across different care settings. | Kim, Su Hyun | Kyungpook Natl Univ, Coll Nursing, Res Inst Nursing Sci, Gukchaebosang Ro 680, Daegu 41944, South Korea | 56664542600 | suhyun_kim@knu.c.kr;suhyun_kim@knu.ac.kr; | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH | 1660-4601 | 19 | 7 | 0.18 | 2025-06-25 | 2 | 2 | chronic disease; death; nursing homes; signs and symptoms; terminal care | CANCER; CARE; DISEASE; HOME | Chronic disease; Death; Nursing homes; Signs and symptoms; Terminal care | Activities of Daily Living; Aged; Anorexia; Dyspnea; Hospices; Humans; Longitudinal Studies; Republic of Korea; Terminal Care; Korea; adult; disease; elderly population; health care; hospital sector; mental disorder; mortality; regression analysis; age distribution; aged; aging; anorexia; Article; chronic disease; confusion; controlled study; daily life activity; data analysis; depression; dyspnea; elderly care; fatigue; female; gender; health care policy; home; hospital; human; incontinence; logistic regression analysis; longitudinal study; male; nursing home; pain; physical disease by body function; place of death; secondary analysis; South Korea; symptom; terminal care; unconsciousness; very elderly; weakness; epidemiology; hospice; South Korea; terminal care | English | 2022 | 2022-04 | 10.3390/ijerph19073924 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Book chapter | Image Segmentation of Concrete Cracks Using SegNet | Inspecting flaws in a structure are vital for engineering applications, especially in concrete projects. The goal of this paper was to employ semantic segmentation model named as SegNet to identify concrete cracks for the continuously and automatically structural health monitoring. The commonly used Adaptive Moment Estimation algorithm and Stochastic Gradient Descent algorithm were applied for optimization. Various recently objective loss functions were served as the evaluation function for image segmentation. Different raw input images of concrete cracks under various conditions such as the shape of cracks, width of cracks, rough or smooth surfaces of backgrounds, were divided for training and validation subsets. The findings revealed that both optimizers performed the similar accuracy by using the intersection over union for concrete crack inspections. In addition, dice, tversky, and focal tversky losses showed better than binary cross-entropy and lovasz losses in terms of the overall accuracy of image classification problems. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG. | Nguyen, Tan-No; Tran, Van-Than; Woo, Seung-Wook; Park, Sung-Sik | Department of Civil Engineering, Kyungpook National University, Daegu, 41566, South Korea; Faculty of Civil Engineering, Ho Chi Minh City Open University, Ho Chi Minh City, 700000, Viet Nam; Department of Civil Engineering, Kyungpook National University, Daegu, 41566, South Korea; Department of Civil Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57862912800; 57226524301; 57212917862; 36241850300 | sungpark@knu.ac.kr; | Lecture Notes on Data Engineering and Communications Technologies | 2367-4512 | 148 | 4.11 | 2025-06-25 | 10 | Crack detection; Image segmentation; Optimization; SegNet | Concretes; Crack detection; Gradient methods; Image segmentation; Semantics; Stochastic systems; Structural health monitoring; Concrete cracks; Engineering applications; Estimation algorithm; Images segmentations; Moment estimation; Optimisations; Segmentation models; Segnet; Semantic segmentation; Stochastic gradient descent algorithm; Optimization | English | Final | 2022 | 10.1007/978-3-031-15063-0_33 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Impact of an emergency department resident strike during the coronavirus disease 2019 (COVID-19) pandemic in Daegu, South Korea: a retrospective cross-sectional study | Background: To prepare for future work stoppages in the medical industry, this study aimed to identify the effects of healthcare worker strikes on the mortality rate of patients visiting the emergency department (ED) at six training hospitals in Daegu, South Korea. Methods: We used a retrospective, cross-sectional, multicenter design to analyze the medical records of patients who visited six training hospitals in Daegu (August 21-September 8, 2020). For comparison, control period 1 was set as the same period in the previous year (August 21-September 8, 2019) and control period 2 was set as July 1-19, 2020. Patient characteristics including age, sex, and time of ED visit were investigated along with mode of arrival, length of ED stay, and in-hospital mortality. The experimental and control groups were compared using t-tests, and Mann-Whitney U-test, chi-square test, and Fisher exact tests, as appropriate. Univariate logistic regression was performed to identify significant factors, followed by multivariate logistic regression analysis. Results: During the study period, 31,357 patients visited the ED, of which 7,749 belonged to the experimental group. Control periods 1 and 2 included 13,100 and 10,243 patients, respectively. No significant in-hospital mortality differences were found between strike periods; however, the results showed statistically significant differences in the length of ED stay. Conclusion: The ED resident strike did not influence the mortality rate of patients who visited the EDs of six training hospitals in Daegu. Furthermore, the number of patients admitted and the length of ED stay decreased during the strike period. | Cho, Yo Han; Cho, Jae Wan; Ryoo, Hyun Wook; Moon, Sungbae; Kim, Jung Ho; Lee, Sang-Hun; Jang, Tae Chang; Lee, Dong Eun | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Emergency Med, 130 Dongdeok Ro, Daegu 41944, South Korea; Yeungnam Univ, Coll Med, Dept Emergency Med, Daegu, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Emergency Med, Daegu, South Korea; Daegu Catholic Univ, Sch Med, Dept Emergency Med, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Dept Emergency Med, Daegu, South Korea | ; Lee, Dong Eun/HTN-4501-2023; Kim, Jung Ho/LDE-9088-2024; Kim, Jungho/LDE-9088-2024; Moon, Sungbae/F-4010-2015 | 58739181900; 7403536065; 55350557500; 57191584601; 57205704177; 57210919228; 57189297849; 57202299238 | jaewanem@knuh.kr; | JOURNAL OF YEUNGNAM MEDICAL SCIENCE | 2799-8010 | 39 | 1 | 0.71 | 2025-06-25 | 9 | 11 | COVID-19; Emergency medical services; Employee strikes; Hospital mortality; Hospitals; Physicians | MORTALITY | COVID-19; Emergency medical services; Employee strikes; Hospital mortality; Hospitals; Physicians | English | 2022 | 2022 | 10.12701/yujm.2021.01130 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | Impact of COVID-19 on the clinical course of nephrotic syndrome in children: a single-center study | Purpose: Children with nephrotic syndrome may experience disease relapse or aggravation triggered by various viral infections. Limited studies on the clinical implications of the coronavirus disease 2019 (COVID-19) pandemic in children with nephrotic syndrome have been published worldwide. Therefore, this study aimed to investigate the effects of COVID-19 on the clinical course of nephrotic syndrome in children. Methods: The medical records of 59 patients with idiopathic nephrotic syndrome who visited our hospital between February and June 2022 were retrospectively analyzed. Results: Twenty of the total 59 patients with nephrotic syndrome were diagnosed with COVID-19 during the study period. The mean age at the time of the diagnosis of nephrotic syndrome and COVID-19 in all 20 patients was 4.6±3.5 and 8.9±3.9 years, respectively. Three patients (15%) were diagnosed with nephrotic syndrome relapse during COVID-19 and the relapse rate was similar to them without COVID-19 (20.5%, 8/39 patients). At the time of the COVID-19 diagnosis, fever (85%) and cough (40%) were the most common symptoms. After the diagnosis of COVID-19, all patients showed improvement with symptomatic treatment, including antipyretic analgesics and cold medicine. None of the critical patients required hospitalization or oral antiviral medications. Conclusions: Despite the use of immunosuppressants, the clinical manifestations of COVID-19 in children with nephrotic syndrome were not severe and are expected to be similar to that in the general population. The relapse rate of nephrotic syndrome in children with COVID-19 was also not different from them without COVID-19. © 2022 Korean Society of Pediatric Nephrology. | Park, Min Ji; Eun, Jung Kwan; Baek, Hee Sun; Cho, Min Hyun | Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pediatrics, Yeungnam University College of Medicine, Daegu, South Korea; Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea | 57425372600; 58159064100; 56689379700; 7401727726 | chomh@knu.ac.kr; | Childhood Kidney Diseases | 2384-0242 | 26 | 2 | 0.33 | 2025-06-25 | 2 | Child; COVID-19; Nephrotic syndrome; Recurrence | English | Final | 2022 | 10.3339/ckd.22.035 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Impact of Social Distancing and Personal Hygiene on the Prevalence of Epidemic Keratoconjunctivitis during the COVID-19 Pandemic | Purpose: To analyze the change in the weekly incidence of epidemic keratoconjunctivitis (EKC) per 1,000 outpatients during the coronavirus disease 2019 (COVID-19) pandemic by comparing the mean weekly proportion of EKC of 2020 with that from 2016 to 2019. Methods: Using data from the Korea Disease Control and Prevention Agency for 2016-2020, we analyzed the weekly proportion of EKC per 1,000 outpatients. The data were also analyzed according to age, semester and vacation periods, region, and social distancing stages. For the Daegu data, we also analyzed the effects of social distancing in an area. Result: The mean weekly proportion of EKC per 1,000 outpatients in 2020 was lower than in previous years for all ages (2016-2019 19.77 +/- 7.17%0, 2020 7.28 +/- 2.97 parts per thousand; p < 0.001). During the semester, the mean difference between 2016-2019 and 2020 was significant, particularly for preschool children. In Daegu, the weekly proportion of EKC per 1,000 outpatients during the extra 12-18 weeks of social distancing was significantly lower (2016-2019, 18.78 +/- 6.61 parts per thousand; 2020, 8.94 +/- 2.92 parts per thousand; p < 0.001). Conclusions: The public health interventions implemented during the COVID-19 outbreak not only reduced the prevalence of COVID-19 but also reduced the prevalence of EKC. Therefore, maintaining hygiene principles and standard precautions may help prevent EKC. | Kim, Jin Young; Jung, Jae Uk; Jo, Yeong Chae; Park, Mi Hwa; Kim, Keon Yeop; Kim, Hong Kyun | Kyungpook Natl Univ, Dept Ophthalmol, 130 Dongdeok Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Prevent Med, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Ophthalmol, Daegu, South Korea | Jung, Jiung/F-5829-2017 | 59448873000; 57204707632; 57219775443; 57476818400; 35076059600; 57218260940 | okeye@daum.net; | JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY | J KOR OPHTHALMOL SOC | 0378-6471 | 2092-9374 | 63 | 2 | ESCI | OPHTHALMOLOGY | 2022 | 0.1 | 0.41 | 2025-06-25 | 2 | 2 | Coronavirus disease 2019; Epidemic keratoconjunctivitis; Personal hygiene; Social distancing | GUIDELINES | Coronavirus disease 2019; Epidemic keratoconjunctivitis; Personal hygiene; Social distancing | Korean | 2022 | 2022-02 | 10.3341/jkos.2022.63.2.126 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Impact Resistance of Two-Way RC Slabs considering Steel Fiber Volume Fraction and Compressive Strength | To investigate impact resistance of two way RC slabs, slabs (1,600 mm×1,600 mm×105 mm) were fabricated and tested using drop-weight impact testing machine. Two volume fractions (0, 2 vol%) and concrete compressive strengths (25, 45, 60, 100, 140, 180 MPa) were considered as the variables. To evaluate the impact resistance of the slabs, failure modes, impact and reaction force, and deflection were measured and the energy dissipating capacity was derived from the force-deflection relationships. As a result, it was found that addition of steel fibers enhanced impact resistance of two way RC slabs in load carrying capacity, energy dissipating capacity, and displacement. Furthermore, steel fiber reinforced concrete specimens of 140, and 180 MPa showed significantly larger energy dissipating capacity in comparison with the others. © 2022 by Korea Concrete Institute. | Son, Jin-Su; Lee, Jin-Young | School of Agricultural Civil and Bio-Industrial Engineering, Kyungpook National University, Daegu, 41566, South Korea; School of Agricultural Civil and Bio-Industrial Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57838318100; 57203144661 | jinyounglee@knu.ac.kr; | Journal of the Korea Concrete Institute | 1229-5515 | 34 | 3 | 0 | 2025-06-25 | 0 | drop-weight impact test; energy dissipating capacity; SFRC; two-way slab; UHPC | Korean | Final | 2022 | 10.4334/jkci.2022.34.3.265 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Implementation of antimicrobial stewardship programs | Background: The antimicrobial stewardship program (ASP) is a coordinated intervention designed to improve and measure the appropriate antibiotics use by selecting an optimal antibiotic drug regimen, including dosing, therapy duration, and administration route. The implementation of ASPs decreases the consumption, cost, and adverse effects of antibiotic use. Additionally, it improves the clinical outcomes, and decreases Clostridium difficile infection and antimicrobial resistance. Current Concepts: To overcome the antimicrobial resistance and implement ASPs worldwide, various efforts are underway, such as enacting ASP guidelines, developing core elements for ASP implementation, introducing ASPs to the healthcare accreditation system, and providing healthcare facilities with adequate incentives to implement ASPs. In Korea, ASP guidelines were published in September 2021, and core elements for ASP implementation are being developed at the time of writing. However, there is a shortage of personnel required for the ASP team, including healthcare workforce and infectious disease specialists for leading the team Moreover, financial support for ASP implementation in the National Health Insurance Service is not provided yet. The awareness of hospital leadership and clinicians prescribing antibiotics for ASP implementation is still low. The reimbursement system establishment and workforce for ASPs are prerequisite for the implementation of ASPs. Discussion and Conclusion: At the national level, it is necessary to provide financial support for ASPs in healthcare facilities, nurture the healthcare workforce in performing ASPs, and advocate ASP education and publicity. | Kwon, Ki Tae | Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea | Kim, Hanjin/KYP-2633-2024 | 9733850500 | ktkwon@knu.ac.kr; | JOURNAL OF THE KOREAN MEDICAL ASSOCIATION | J KOREAN MED ASSOC | 1975-8456 | 2093-5951 | 65 | 8 | ESCI | MEDICINE, GENERAL & INTERNAL | 2022 | 0.3 | 0.48 | 2025-06-25 | 2 | 3 | Anti-bacterial agents; Bacterial drug resistance; Antimicrobial stewardship | ANTIBIOTIC STEWARDSHIP; CORE ELEMENTS; IMPACT; INTERVENTION; GUIDELINES | Anti-bacterial agents; Antimicrobial stewardship; Bacterial drug resistance | antibiotic agent; accreditation; antimicrobial stewardship; Article; health care facility; health workforce; human; national health insurance; practice guideline; prescription | Korean | 2022 | 2022-08 | 10.5124/jkma.2022.65.8.498 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Improved Dynamic Programming in Local Linear Approximation Based on a Template in a Lightweight ECG Signal-Processing Edge Device | Interest is increasing in electrocardiogram (ECG) signal analysis for embedded devices, creating the need to develop an algorithm suitable for a low-power, low-memory embedded device. Linear approximation of the ECG signal facilitates the detection of fiducial points by expressing the signal as a small number of vertices. However, dynamic programming, a global optimization method used for linear approximation, has the disadvantage of high complexity using memoization. In this paper, the calculation area and memory usage are improved using a linear approximated template. The proposed algorithm reduces the calculation area required for dynamic programming through local optimization around the vertices of the template. In addition, it minimizes the storage space required by expressing the time information using the error from the vertices of the template, which is more compact than the time difference between vertices. When the length of the signal is L, the number of vertices is N, and the margin tolerance is M, the spatial complexity improves from O(NL) to O(NM). In our experiment, the linear approximation processing time was 12.45 times faster, from 18.18 ms to 1.46 ms on average, for each beat. The quality distribution of the percentage root mean square difference confirms that the proposed algorithm is a stable approximation. | Lee, Seungmin; Park, Daejin | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea | 57200005388; 55463943600 | lsm1106@knu.ac.kr;boltanut@knu.ac.kr; | JOURNAL OF INFORMATION PROCESSING SYSTEMS | J INF PROCESS SYST | 1976-913X | 2092-805X | 18 | 1 | ESCI | COMPUTER SCIENCE, INFORMATION SYSTEMS | 2022 | 1.6 | 0.37 | 2025-06-25 | 3 | 5 | Device Discovery; Partition-Based; RDM | COMPRESSION; SYSTEMS; HEALTH | Device discovery; Partition-based; Rdm | Approximation algorithms; Biomedical signal processing; Electrocardiography; Global optimization; Signal analysis; Device discovery; Electrocardiogram signal; Electrocardiogram signal processing; Embedded device; Linear approximations; Local linear approximation; Low Power; Partition-based; Rdm; Signals analysis; Dynamic programming | English | 2022 | 2022-02 | 10.3745/jips.03.0173 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Proceedings Paper | Improvement of Bandwidth Fairness between TCP BBRv2 and CUBIC | Google proposed Bottleneck Bandwidth Round-trip propagation time version2 (BBRv2) congestion control algorithm to solve the bandwidth fairness problem of the BBRv1. The bandwidth fairness of BBRv2 depends on the Bandwidth Delay Product (BDP). When the bottleneck buffer is less than 2BDP, BBRv2 improves bandwidth unfairness in bandwidth sharing with loss-based congestion control algorithm such as CUBIC over BBRv1. However, when the bottleneck buffer exceeds 2BDP, BBRv2 has bandwidth fairness issues. In this paper, we proposed F-BBRv2 to solve the bandwidth fairness problem of BBRv2 by using the minRTT value and adaptive pacinggₐᵢₙ method. | Cho, Hyo-Seop; Kim, Geon-Hwan; Cho, You-Ze | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea | 57988041600; 57189040274; 7404469829 | yg011175@knu.ac.kr;kgh76@ee.knu.ac.kr;yzcho@ee.knu.ac.kr; | 2022 27TH ASIA PACIFIC CONFERENCE ON COMMUNICATIONS (APCC 2022): CREATING INNOVATIVE COMMUNICATION TECHNOLOGIES FOR POST-PANDEMIC ERA | 2163-0771 | 0 | 2025-06-25 | 0 | 0 | TCP congestion control algorithm; BBRv2; CUBIC; Bandwidth Fairness | Bandwidth Fairness; BBRv2; CUBIC; TCP congestion control algorithm | Traffic congestion; Transmission control protocol; Bandwidth fairness; Bottleneck bandwidth; Bottleneck bandwidth round-trip propagation time version2; Congestion control algorithm; CUBIC; Fairness problem; Google+; Propagation time; Round trip; TCP congestion control algorithm; Bandwidth | English | 2022 | 2022 | 10.1109/apcc55198.2022.9943682 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | ○ | Article | Improvement of non-negative matrix factorization-based reverberation suppression for bistatic active sonar | To detect targets with active sonar system in the underwater environments, the targets are localized by receiving the echoes of the transmitted sounds reflected from the targets. In this case, reverberation from the scatterers is also generated, which prevents detection of the target echo. To detect the target effectively, reverberation suppression techniques such as pre-whitening based on autoregressive model and principal component inversion have been studied, and recently a Non-negative Matrix Factorization (NMF)-based technique has been also devised. The NMF-based reverberation suppression technique shows improved performance compared to the conventional methods, but the geometry of the transducer and receiver and attenuation by distance have not been considered. In this paper, the performance is improved through preprocessing such as the directionality of the receiver, Doppler related thereto, and attenuation for distance, in the case of using a continuous wave with a bistatic sonar. In order to evaluate the performance of the proposed system, simulation with a reverberation model was performed. The results show that the detection probability performance improved by 10 % to 40 % at a low false alarm probability of 1 % relative to the conventional non-negative matrix factorization. | Lee, Seokjin; Lee, Yongon | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | 36174416200; 57861637000 | sjlee6@knu.ac.kr; | JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA | J ACOUST SOC KOREA | 1225-4428 | 2287-3775 | 41 | 4 | ESCI | ACOUSTICS | 2022 | 0.4 | 0.13 | 2025-06-25 | 1 | 1 | Active sonar; Bi-static; Reverberation suppression; Non-negative matrix factorization | Active sonar; Bi-static; Non-negative matrix factorization; Reverberation suppression | English | 2022 | 2022 | 10.7776/ask.2022.41.4.468 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | Article | Improvement of Teachers’ Scientific Knowledge researched by Difficulty and Development of teachers experienced in process of Conducting Scientific Inquiry | Many elementary school teachers’ lack of scientific knowledge reveal as several problems in teaching science. Thus, elementary school teachers need to improve their scientific knowledge, but there is the limit to improve the teachers’ scientific knowledge through activities based on lecture that conducted in process of training and retraining them. Therefore, Improvement for training science teacher to improve scientific knowledge of elementary school teachers would be searched in this study. Depth interview was conducted toward three elementary school teachers, who had conducted action research, to improve content knowledge of material domain within teaching process and elementary school science. Based on result of the interview, difficulty and development that the three teachers were commonly experienced in process of conducting scientific inquiry in action research were analyzed. One of the difficulties of the inquiry were to figure out how the three teachers, who participated in the interview, understand specific concept, what they do not understand, and what they should study more to understand the concept. And there was a circumstance that the teachers did not know how to apply procedural knowledge, which learned explicitly in the process of setting plan for conducting research, into real context. Since there was difference between knowledge that they understand disjunctively and context that observed in real circumstance, they faced difficulty. However, the teachers conducted analysis of topic, planning research, conducting research, discussion of the result by themselves with those difficulties Thus, the teachers mentioned that not only content knowledge had been improved, but understanding of procedural knowledge, which is not intended to improve, had been also improved. Besides, they also mentioned that comprehensive understanding content knowledge, which they already understood, was also helpful. And the teachers suggest that if there were chance to discuss and examine the scientific practices by consisting of group with colleagues rather than conducting it individually it would more efficient studying. Considering their suggestion, direction of training elementary school teachers for improving their scientific knowledge should be improved in a way to understand science concepts based on direct research about context that is generated in circumstance of studying group of the teachers. Consequently, it would contribute to improvement of teaching science by combining teachers’ practice and understanding. © 2022 Korean Chemical Society. All rights reserved. | Lee, Dongseung; Park, Jongseok | Department of Chemical Education, Kyungpook National University, Daegu, 41566, South Korea; Department of Chemical Education, Kyungpook National University, Daegu, 41566, South Korea | 57195223861; 57022500800 | parkbell@knu.ac.kr; | Journal of the Korean Chemical Society | J KOREAN CHEM SOC | 1017-2548 | 2234-8530 | 66 | 1 | ESCI | CHEMISTRY, MULTIDISCIPLINARY | 2022 | 0.5 | 0 | 2025-06-25 | 0 | Elementary school teacher; Scientific inquiry; Teacher education | Teaching; Technology transfer; Action research; Content knowledge; Elementary school teacher; Elementary schools; In-process; School teachers; Scientific inquiry; Scientific knowledge; Teacher education; Teachers'; Personnel training | Korean | Final | 2022 | 10.5012/jkcs.2022.66.1.42 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | Article | Improving autonomous vehicle in-traffic safety using learning-based action governor | The Action Governor (AG) is a supervisory scheme augmenting a nominal control system in order to enhance the system's safety and performance. It acts as an action filter, monitoring the action commands generated by the nominal control policy and adjusting the ones that might lead to undesirable system behavior. In this article, we present an approach based on learning to developing an AG for autonomous vehicle (AV) decision policies to improve their safety for operating in mixed-autonomy traffic (i.e., traffic involving both AVs and human-operated vehicles (HVs)). To achieve this, we demonstrate that it is possible to train the AG in a traffic simulator that is capable of representing in-traffic interactions among AVs and HVs. We illustrate the effectiveness of this learning-based AG approach to improving AV in-traffic safety through simulation case studies. © 2022 John Wiley & Sons Ltd. | Han, Kyoungseok; Li, Nan; Tseng, Eric; Filev, Dimitar; Kolmanovsky, Ilya; Girard, Anouck | School of Mechanical Engineering, Kyungpook National University, Daegu, South Korea; Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI, United States; Ford Motor Company, Dearborn, MI, United States; Ford Motor Company, Dearborn, MI, United States; Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI, United States; Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI, United States | 56465294700; 57193099518; 56719105300; 7004005522; 7006937254; 7102803626 | kyoungsh@knu.ac.kr; | Advanced Control for Applications: Engineering and Industrial Systems | 2578-0727 | 4 | 2 | 0.32 | 2025-06-25 | 4 | action governor; autonomous vehicle; learning-based control; reinforcement learning | Accident prevention; Autonomous vehicles; Reinforcement learning; Vehicle actuated signals; Action governor; Autonomous Vehicles; Control policy; Decision policy; Learning-based control; Supervisory schemes; System behaviors; System safety; Systems performance; Traffic safety; Governors | English | Final | 2022 | 10.1002/adc2.101 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Article | Improving the Energy Efficiency Using Magnetic Materials Lamination Type of High Voltage Transformer | We constructed the high voltage transformer for driving a S-band RF source that confirm explosives materials. For designing a fast rise time and high energy efficiency Tesla Transformer to insert a magnetic core for minimizing inductance loss between primary and secondary coil. Magnetizing inductance of Tesla transformer changed by stray inductance which is generated by eddy current on the surface of magnetic core. In this paper, we calculate magnetizing inductance and energy efficiency of Tesla transformer by CST(Computer Simulation Technology) simulation of four types of laminated magnetic core's eddy current loss. Energy efficiency of design model(radial laminating) is about 3.0 ~ 5.8% higher than the existing methods, and it is thought that it will be used as a performance improvement of S-band RF radiation device. Copyright ©The Korean Institute of Electrical Engineers | Kim, Bu-Geon; Park, Seung-Hyuk; Kim, Jin-Gyu | Dept. of Environments & Safety, Hanwha Corporation, South Korea; Dept. of Environments & Safety, Hanwha Corporation, South Korea; School of Electronic and Electrical Engineering, Department of Electrical Engineering, Kyungpook National University, South Korea | 57695725600; 57191671529; 54680957000 | kjg@knu.ac.kr; | Transactions of the Korean Institute of Electrical Engineers | 1975-8359 | 71 | 4 | 0 | 2025-06-25 | 0 | Eddy current loss; Explosives materials; Magnetic core; Magnetizing inductance; Stray inductance; Tesla transformer | Eddy currents; Energy efficiency; Explosives; Inductance; Laminating; Magnetic laminates; Power transformers; Eddy-current loss; Explosive materials; Fast rise time; High energy efficiency; High-voltage transformers; Inductance loss; Magnetizing inductance; RF sources; Stray inductances; Tesla transformer; Magnetic cores | Korean | Final | 2022 | 10.5370/kiee.2022.71.4.650 | 바로가기 | 바로가기 |
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