• 제목/요약/키워드: Eun-Young Yi

검색결과 569건 처리시간 0.028초

Intraventricular Vancomycin Therapy for Intractable Bacillus cereus Ventriculitis

  • Hahn, Jong Woo;Ju, Hee young;Park, Meerim;Yi, Eun Sang;Park, Byung-Kiu;Shin, Sang-Hoon;Lee, Sang-Hyun;Park, Hyeon Jin;Kang, Ji-Man
    • Pediatric Infection and Vaccine
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    • 제26권2호
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    • pp.124-128
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    • 2019
  • 의료관련 뇌실염/수막염(Healthcare-associated ventriculitis and meningitis)은 지역사회 수막염과 다른 역학적 특성과 병리 기전을 가진다. 일부에서는 전신 항생제투여 방법만으로 치료 반응이 불충분할 수 있으며, 이러한 경우 뇌실내로 적절한 항생제를 직접 주입하는 치료를 시도해 볼 수 있다. 본 저자들은 기존의 전신 항생제치료에 불응하는 Bacillus cereus에 의한 의료관련 뇌실염/수막염 환자를 뇌실내 반코마이신 주입요법으로 주요 부작용없이 성공적으로 치료하여 이를 보고하는 바이다.

Potential Wide-gap Materials as a Top Cell for Multi-junction c-Si Based Solar Cells: A Short Review

  • Pham, Duy Phong;Lee, Sunhwa;Kim, Sehyeon;Oh, Donghyun;Khokhar, Muhammad Quddamah;Kim, Sangho;Park, Jinjoo;Kim, Youngkuk;Cho, Eun-Chel;Cho, Young-Hyun;Yi, Junsin
    • Current Photovoltaic Research
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    • 제7권3호
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    • pp.76-84
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    • 2019
  • Silicon heterojunction solar cells (SHJ) have dominated the photovoltaic market up till now but their conversion performance is practically limited to around 26% compared with the theoretical efficiency limit of 29.4%. A silicon based multi-junction devices are expected to overcome this limitation. In this report, we briefly review the state-of-art characteristic of wide-gap materials which has played a role as top sub-cells in silicon based multi-junction solar cells. In addition, we indicate significantly practical challenges and key issues of these multi-junction combination. Finally, we focus to some characteristics of III-V/c-Si tandem configuration which are reaching highly record performance in multi-junction silicon solar cells.

알약 자동 인식을 위한 딥러닝 모델간 비교 및 검증 (Comparison and Verification of Deep Learning Models for Automatic Recognition of Pills)

  • 이경윤;김영재;김승태;김효은;김광기
    • 한국멀티미디어학회논문지
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    • 제22권3호
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    • pp.349-356
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    • 2019
  • When a prescription change occurs in the hospital depending on a patient's improvement status, pharmacists directly classify manually returned pills which are not taken by a patient. There are hundreds of kinds of pills to classify. Because it is manual, mistakes can occur and which can lead to medical accidents. In this study, we have compared YOLO, Faster R-CNN and RetinaNet to classify and detect pills. The data consisted of 10 classes and used 100 images per class. To evaluate the performance of each model, we used cross-validation. As a result, the YOLO Model had sensitivity of 91.05%, FPs/image of 0.0507. The Faster R-CNN's sensitivity was 99.6% and FPs/image was 0.0089. The RetinaNet showed sensitivity of 98.31% and FPs/image of 0.0119. Faster RCNN showed the best performance among these three models tested. Thus, the most appropriate model for classifying pills among the three models is the Faster R-CNN with the most accurate detection and classification results and a low FP/image.

A Review on Degradation of Silicon Photovoltaic Modules

  • Yousuf, Hasnain;Khokhar, Muhammad Quddamah;Zahid, Muhammad Aleem;Kim, Jaeun;Kim, Youngkuk;Cho, Sung Bae;Cho, Young Hyun;Cho, Eun-Chel;Yi, Junsin
    • 신재생에너지
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    • 제17권1호
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    • pp.19-32
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    • 2021
  • Photovoltaic (PV) panels are generally treated as the most dependable components of PV systems; therefore, investigations are necessary to understand and emphasize the degradation of PV cells. In almost all specific deprivation models, humidity and temperature are the two major factors that are responsible for PV module degradation. However, even if the degradation mode of a PV module is determined, it is challenging to research them in practice. Long-term response experiments should thus be conducted to investigate the influences of the incidence, rates of change, and different degradation methods of PV modules on energy production; such models can help avoid lengthy experiments to investigate the degradation of PV panels under actual working conditions. From the review, it was found that the degradation rate of PV modules in climates where the annual average ambient temperature remained low was -1.05% to -1.16% per year, and the degree of deterioration of PV modules in climates with high average annual ambient temperatures was -1.35% to -1.46% per year; however, PV manufacturers currently claim degradation rates of up to -0.5% per year.

Effect of Chinese Consumers' Ethnocentrism and Cultural Affinity on Purchase Intentions for Local Fashion Brands in the Context of "Guochao" Consumption

  • Wu, Yi Fang;Kim, Eun Young
    • 한국의류산업학회지
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    • 제24권4호
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    • pp.408-417
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    • 2022
  • This study developed a structural model to examine the relationships among consumer traits, self-brand connections, and purchase intentions for local fashion brands under "Guochao" consumption in China. An online survey with a self-administered questionnaire was undertaken through Chinese SNS tools to collect the data. A total of 276 usable responses were obtained from Chinese consumers who are residents in China. More females(n=174, +63%) than males (n=102, 37%) participated, and they were aged from 18 to 45 years old. The measurement model was confirmed to be reliable and valid. In the estimated structural model, the consumer traits of ethnocentrism and cultural affinity positively affected the self-brand connection, leading to purchase intentions for the local fashion brands. Specifically, the ethnocentrism factor indirectly affected the purchase intentions by mediating the self-brand connection, while the cultural affinity factor had significant direct effects on purchase intentions. Thus, a partial mediating effect of self-brand connection was found in the relationship between the consumer traits(ethnocentrism and cultural affinity) and purchase intentions of local fashion brands in the cultural "Guochao" consumption context. This study provides insights into extending the cultural theory of ethnocentrism relevant to self-brand connections and discusses the managerial implications for developing strategic global branding in the Chinese fashion markets.

의료기관 가정간호 대상자의 다제내성균 보유 위험요인 (Risk Factors for Mutidrug-Resistant Organisms Carriage Among Home Health Nursing Patients)

  • 박민아;장정숙;조영이;최지연;이종은
    • 가정∙방문간호학회지
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    • 제30권2호
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    • pp.155-162
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    • 2023
  • Purpose: This study was conducted to identify the status and risk factors for the carriage of multidrug-resistant organisms carriage in home health nursing patients. Methods: This retrospective study enrolled 122 participants who received home health nursing and analyzed the data obtained from chart review and diagnostic tests for multidrug-resistant organisms carriage from January 2019 to January 2021. Results: Multivariate analysis revealed that surgical procedures in the preceding year, injectable antibiotic use in the preceding month, pressure ulcer, and indwelling nasal tubes were significantly associated with multi-drug resistant infection. Conclusions: Infection-control strategies need to be developed and customized for use in the home health-nursing service for patients who are carriers of multidrug-resistant organisms.

Construction Ergonomic Intervention to Reduce Musculoskeletal Disorders in Aluminum Formworkers

  • Kim, Dae Young;Yi, Hak;Lee, Sang Ryong;Kim, Bubryur;Lee, Dong-Eun
    • 국제학술발표논문집
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.465-472
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    • 2022
  • Manual material handling is the one of the leading causes for musculoskeletal disorders (MSDs) and lower back discomfort. According to a study, construction formworkers suffer greater rates of muscular injuries and related illness due to manual activities. However, there is still a paucity of information on MSD, preventive posture issues, and corresponding solutions for construction aluminum formworkers. As a result, MSD and disregard of worker health and safety continue to exist at construction sites. Although preventive measures and strategies have been studied in previous research, we believe it is imperative to shed light on this problem through this study. This study aims to 1) implement a simple and cost-effective elevated bench to reduce MSDs, and 2) determine the rapid upper limbs assessment (RULA) and Ovako working posture analyzing system (OWAS) action catagory of workers in different postures to assess their MSD conditions and obtain an optimal position and posture using the Jack human modeling software and simulation tool. The study findings reveal a considerable reduction in MSD discomfort and which posture is acceptable in post-intervention instances.Thus results provide inexpensive and simple ergonomic interventions with favorable RULA and OWAS ratings that can be applied at construction sites. This study demonstrates workstation ergonomic intervention cases that can aid in understanding the urgency of applying existing research strategies into practice.

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안드로이드 기반 로고를 이용한 증강현실 시스템 (Augmented Reality Logo System Based on Android platform)

  • 임선진;정은영;정운국;정경민;문창배;김병만;이종열
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2011년도 춘계학술발표대회
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    • pp.353-356
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    • 2011
  • 스마트 폰의 등장과 모바일 인터넷을 제공함에 따라 휴대폰은 음성통신 수단이 아닌 웹을 통하여 서비스를 제공받는 도구 또는 각종 게임 및 응용 어플리케이션을 제공하는 놀이수단으로도 발전하였고, 이로인하여 사용량도 증가하였다. 사용량의 급증으로 인하여 모바일 광고에 대한 업계의 관심도 증가 하였지만, 한정적인 출력화면에 의하여 제한적일 수밖에 없다. 이를 보완하기 위해, 본 논문에서는 기업의 로고 광고의 효과를 극대화 할 수 있는 안드로이드 기반 로고를 인식하는 증강현실 시스템을 제안 하였고, 이를 구현 하여 실 제폰에 탑재한 후 다양한 성능 분석을 하였다. 실험결과, 그 가능성은 확인하였지만 현하드웨어 성능으로는 실시간으로 지원하기에는 역부족임을 알 수 있었다.

A case report of an unusual temporomandibular joint mass: Nodular fasciitis

  • Han-Sol Lee;Kyu-Young Oh;Ju-Hee Kang;Jo-Eun Kim;Kyung-Hoe Huh;Won-Jin Yi;Min-Suk Heo;Sam-Sun Lee
    • Imaging Science in Dentistry
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    • 제53권1호
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    • pp.83-89
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    • 2023
  • Nodular fasciitis (NF) is a benign myofibroblastic proliferation that grows very rapidly, mimicking a sarcoma on imaging. It is treated by local excision, and recurrence has been reported in only a few cases, even when excised incompletely. The most prevalent diagnoses of temporomandibular joint(TMJ) masses include synovial chondromatosis, pigmented villonodular synovitis, and sarcomas. Cases of NF in the TMJ are extremely rare, and only 3 cases have been reported to date. Due to its destructive features and rarity, NF has often been misdiagnosed as a more aggressive lesion, which could expose patients to unnecessary and invasive treatment approaches beyond repair. This report presents a case of NF in the TMJ, focusing on various imaging features, along with a literature review aiming to determine the hallmark features of NF in the TMJ and highlight the diagnostic challenges.

Isolation and Characterization of Pathogen-Inducible Putative Zinc Finger DNA Binding Protein from Hot Pepper Capsicum annuum L.

  • Oh, Sang-Keun;Park, Jeong-Mee;Jung, Young-Hee;Lee, Sanghyeob;Kim, Soo-Yong;Eunsook Chung;Yi, So-Young;Kim, Young-Cheol;Seung, Eun-Soo
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.79.2-80
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    • 2003
  • To better understand plant defense responses against pathogen attack, we identified the transcription factor-encoding genes in the hot pepper Capsicum annuum that show altered expression patterns during the hypersensitive response raised by challenge with bacterial pathogens. One of these genes, Ca1244, was characterized further. This gene encodes a plant-specific Type IIIA - zinc finger protein that contains two Cys$_2$His$_2$zinc fingers. Ca1244 expression is rapidly and specifically induced when pepper plants are challenged with bacterial pathogens to which they are resistant. In contrast, challenge with a pathogen to which the plants are susceptible only generates weak Ca1244 expression. Ca1244 expression is also strongly induced in pepper leaves by the exogenous application of ethephon, an ethylene releasing compound. Whereas, salicylic acid and methyl jasmonate had moderate effects. Pepper protoplasts expressing a Ca1244-smGFP fusion protein showed Ca1244 localizes in the nucleus. Transgenic tobacco plants overexpressing Ca1244 driven by the CaMV 355 promoter show increased resistance to challenge with a tobacco-specific bacterial pathogen. These plants also showed constitutive upregulation of the expression of multiple defense-related genes. These observations provide the first evidence that an Type IIIA - zinc finger protein, Ca1244, plays a crucial role in the activation of the pathogen defense response in plants.

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