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任閏赫 한국교육학회 1980 敎育學硏究 Vol.18 No.2
오늘날 學校敎育이 知育偏重傾向에 몰입되어 있어 知識敎育은 되고 있으나 人間敎育에 결함이 있으므로, 敎育에 의해 個人의 諸 特性을 걸리주어야 하는 投割에는 역행되고 있다. 그러나 人間社會에서는 個人의 知的 特性의 높은 水準만을 要求되는 것이 아니라 知的 特性에 대응될 만한 다른 要因도 要求받고 있다. 따라서 오늘날 學校敎育에서던 學校以外 敎育이던간에 人間敎育의 價値에 關心을 갖게 되었으며, 특히 人間化를 至上目標로 삼는 의도적ㆍ계획적ㆍ제도적안 學校敎育에서 더욱 重要한 초점을 두어 省察해 보아야 겠다. 우선 人間敎育의 槪念은 잘 정리되어 있지 않았으나 知育偏重에서 탈피하려는 것만은 분명하다.
Canny Edge검출 기법과 합성곱 신경망을 이용한 심층학습 기반 터보차저 진동 분석
임윤혁,조형주,이형일 한국소음진동공학회 2023 한국소음진동공학회 논문집 Vol.33 No.5
This study proposes a novel method for analyzing turbocharger vibration utilizing a combination of the convolutional neural networks (CNN) technique and the Canny edge detection technique. The conventional 1D machine-learning techniques exhibit poor accuracies due to the irregularly changing rotating speeds of the turbine and compressor, which are inherent to turbochargers. To address the issue, the adoption of a 2D CNN accompanied by the Canny edge detection technique has been proposed here. First, the experimental vibration data of the turbocharger have been created and labeled. To augment the limited number of experimental data, the data augmentation technique is applied, resulting in a sufficient amount of data. Subsequently, various preprocessing and machine- learning techniques have been applied for the analysis. By comparing the accuracy and loss data of these analyses, the 2D CNN accompanied by the Canny edge detection technique has been confirmed as the most effective approach for analyzing turbocharger vibration.
한국인 고혈압 환자에서 체질량지수, 허리둘레가 좌심실 질량에 미치는 영향
임윤혁,박병현,김성주,조정구 대한당뇨병학회 2007 Diabetes and Metabolism Journal Vol.31 No.2
Background: In many studies, obesity is highly correlated with adverse coronary risk profile. Increased left ventricular (LV) mass is an independent risk factor for cardiovascular mortality and morbidity. Hypertension is an well known factor related with LV mass. Obesity also is related with LV mass and commonly associated with hypertension. However, few data are available concerning the relations of LV mass to central obesity, especially in Korean hypertensive patients. So, this study was to evaluate the significance of waist circumference in determinants of LV mass in Korean hypertensive patients. Methods: A total of 74 hypertensive [40 women, 34 men; mean age, 62.5 years; mean body mass index (BMI), 25.0 kg/m2, 17 with type 2 diabetes] patients without prevalent cardiovascular disease were studied. Echocardiographic LV septal thickness, LV posterior wall thickness, LV dimension and LV mass were analysed. Results: LV mass, diastolic left ventricular internal dimension and epicardial fat thickness were larger in men than in female. LV mass was larger in obese patients defined by body mass index and also in central obese patients defined by waist circumference. LV mass was correlated with sex, body mass index, waist circumference, diastolic left ventricular internal dimension, left ventricular posterior wall thickness and interventricular septal thickness. After controlling for age, sex and body mass index, waist circumference was correlated with LV posterior wall thickness and LV mass. Conclusion: Waist circumference may be more important than BMI in determinants of left ventricular mass in Korean hypertensive patients. (J Kor Diabetes Assoc 31:130~135, 2007)
제2형 당뇨병 환자에서 아스피린 저항성 빈도와 연관인자에 관한 연구
임윤혁 ( Yun Hyek Lim ),박병현 ( Byoung Hyun Park ),조정구 ( Chung Gu Cho ) 대한내과학회 2009 대한내과학회지 Vol.76 No.3
Background/Aims: The risk of cardiovascular morbidity and mortality is high in patients with diabetes. Since studies suggest that aspirin is less effective in diabetic patients, this study evaluated the prevalence of aspirin resistance and related factors in Korean type-2 diabetics. Methods: All patients taking aspirin 100 mg/day for at least 4 weeks and no other anti-platelet agents were enrolled. The compliance of aspirin intake was determined from patient interviews and using the pill-count method. All other medications were continued during the study, including oral hypoglycemics, antihypertensives, and lipid-lowering agents. The effect of aspirin was assessed using the Ultegra Rapid Platelet Function Assay-ASA (VerifyNow-Aspirin, Accumetrics, San Diego, CA) and aspirin resistance was defined as >550 aspirin reaction units (ARU). Results: The prevalence of aspirin resistance in Korean type-2 diabetics was 14.8%, and was more prevalent in males than in females (28.1% vs. 7.1%). Aspirin resistance was correlated with male sex, smoking, high hemoglobin levels, a high estimated glomerular filtration rate (GFR), and low fibrinogen levels. After controlling for sex, aspirin resistance was related to the estimated GFR (r=0.247, p=0.029), hemoglobin (r=0.23, p=0.043), and fibrinogen (r=0.304, p=0.007) levels. Conclusion: The prevalence of aspirin resistance in Korean type-2 diabetics was 14.8%. Therefore, a laboratory test for aspirin resistance should be considered in diabetic patients taking aspirin to prevent cardiovascular complications. (Korean J Med 76:321-328, 2009)
ATSC 3.0 기반 UHD, 이동HD, 디지털라디오 통합전송 연구
서창호,임윤혁,전성호,서재현,최성진 한국방송∙미디어공학회 2019 방송공학회논문지 Vol.24 No.4
본 논문에서는 국내 방송환경에 적합한 차세대 방송기술 및 서비스의 기술적 검증을 통해 지상파 UHD 방송의 정착 및 활성화 등을 추진하고자 ATSC 3.0 기반 서비스에 대한 기술적 검증을 실시하였다. ATSC 3.0 기반 이동HD 방송은 방송사, 연구기관 등에서 다양한 파라미터로 실험을 추진 중에 있으나, 오디오 서비스에 대한 실험은 추진되지 않았다. 본 실험을 통해 한 채널(6MHz) 내에서 ATSC 3.0 기반 UHD 방송의 최대 서비스 개수, 이동성을 고려한 HD 방송의 최대 서비스 개수, 오디오 방송의 최대 서비스 개수 등에 대한 이론 및 실험을 진행하였고, 각 서비스(UHD방송, HD방송, 오디오방송)를 한 채널 내에서 통합으로 전송하기 위한 파라미터를 도출하고, 이를 직접 필드에서 이동하면서 수신해보는 필드테스트를 통해 기술적 가능성을 수행하였다.