2023년 가스/스팀터빈 분야 연구동향

강영석 한국유체기계학회 2024 한국유체기계학회 논문집 Vol.27 No.2

운동부하에 따른 지속운동이 호흡순화기능, 혈액가스성분, 혈청지질, 카테콜아민 및 초과산소섭취량에 미치는 영향

강영석,박주한,박진,전인홍,이영섭 한국유산소운동과학회 1998 대한스포츠융합학회지 (jcses) Vol.2 No.1

The purpose of this study was to examine the pattern of changes in physiological variables manipulated by the level of aerobic exercise intensities such as 40 %, 55 %, and 70 % of VO_2 max and to evaluate the effects of the physiological variables on the volume of EPOC. From these analyses, the following conclusions were attained: 1. The mean value of EPOC during the recovery period was the highest at the 70% of exercise intensity, followed by the 55% and the 40%. 2. The time taken from the end-point of 20 min exercise to the level of rest significantly increased as the level of exercise intensity increased. 3. The value of EPOC was positively related to the values of blood epinepirine, triglyceride, pH, PO_2 among the 26 measured physiological variables for all three level of exercise intensities. From these results, it can be suggested that when we evaluate the total amount of exercise expenditure during 20 minutes exercise with the exercise intensity of 40%, 55%, and 70% of VO_2 max, we should include the amount of EPOC about 5-9% more.

基礎體力 檢査要因構造의 性差

姜暎錫 서울여자대학교 자연과학연구소 1991 자연과학연구논문집 Vol.2 No.-

The purpose of this study was to investigate the relationships between skinfold thickness, a widely used field measure of body composition, and performance of other common health-related physical fitness test items. And the research problems of this syudy was to describe the factor structure of the health-related physical fitness test battery in male and female college students. Subjects were 153 college male and 81 female students between the age of 20-22. Each subjects compleated the 4 items health-related physical fitness test. This test includes the following test item ; sit ups, mile run, sit and reach test, skinfold measure(triceps, subscapular). The raw scores were analyzed model such as principal component analysis with PA2 iteration. The results of this investigation indicate that ; skinfold thickness in significantly and inversely related to performance on the all health-related fitness test items in male and female students. Body fatness rate is essentially independent of the other common health fitness test items. And the factor analytic findings the only one general factor body fat composition exists in health-related physical fitness test.

일반계 고등학교 선택중심 교육과정의 편성 방안 연구

강영석 한국교육과정평가원 2002 교육과정평가연구 Vol.5 No.1

This study focuses on analysing the consisting case of high school elective- centered curriculum. To accomplish the study, some questions were suggested as follows; First: What type of curriculum is installed? Second: How many number of units of the elective courses do the provincial offices of education, school, students select? Three: What is the method that students select the elective courses? Fourth: How many elective courses do the students study within a semester? The major findings of this study are as follows: First, the curriculum of most schools are consisted of humanities and natural science. Second, the number of units selected by school are 62-64, the number of units selected by provincial offices of education are 37-39 and the number of units selected by students are 35-36. Third, the method of mass selection to select the elective courses is more used than alternative. Fourth, students study 11-12 elective courses within a semester.

`94 대학수학능력시험의 문제점 분석

강영석 한국교육학회 대구·경북지회 1994 교육학논총 Vol.13 No.-

The purpose of this study is to analyse the problems of College Scholastic Ability Test(CSAT) which was taken two times in 1993. The sample for this study consisted of 387 twelfth grade students of a public high school of the Gumi area. These students took the CSAT in 1993. The major findings of this study are summarized as follows: First, The CSAT was in the mixed form of the academic achievement test and the academic aptitude test. It tends to be the academic achievement test. Second, The results of the paired-comparisons t-test showed that the average difference was significantly different at the. 001 level in scores on the first CSAT and the second CSAT. Third, t-test showed that the average scores for human knowledge course and natural science course were not significantly different at the. 05 level.

Polymide 박막상에 증착된 알루미늄 박막의 Hillock거동

강영석,Gang, Yeong-Seok 한국재료학회 1998 한국재료학회지 Vol.8 No.9

polyimide를 입힌 SiO2 wafer상에 증착된 알루미늄 박막의 두께 및 소둔 여부에 따른 hillock의 거동을 atomic force microscopy (AFM)을 이용하여 분석하였다. 증착된 상태의 박막에서 성장 hillock이 관찰되었으며 박막 두께가 증가할수록 hillock의 크기는 증가한 반면 밀도는 감소하였다. 소둔 후 hillock의 평균 크기는 증가하였으나 밀도는 감소하였다. 이러한 hillock 밀도의 감소는 견고한 wafer상에 직접 증착된 알루미늄 박막에서와 다르다. 이는 유연한 polymide 박막에 의한 응력 완화로 응력유기 입계확산이 이루어지지 않아 hillock 이 추가로 형성되지 않은 상태에서 큰 hillock이 성장하면서 작은 hillock을 흡수하기 때문으로 판단된다.

한국인의 미소에 대한 3차원적 분석

강영석,배용찬,황소민 대한성형외과학회 2003 Archives of Plastic Surgery Vol.30 No.4

Smile reconstruction through restorating the movement of the upper and lower lips and the nasolabial fold for facial paralysis, is the one of the most important fields of plastic and reconstructive surgery. It is necessary to understand and analyze the normal smile in planning the surgery for facial paralysis.Fifty volunteers(25 men and 25 women) have been measured using 6-mm digital video camera with various computer programs to get the most spontaneous smile. Stop frames from the cycle of smile were captured in frontal, both lateral, and inferior views and the differences between resting and maximum smiling states were compared. Each subject had ten points marked on the lips and nasolabial creases. The distance and angle between each point of two states were measured and converted into x, y and z components in three dimensional space. Averages of each component were calculated. Average movement, average angle on coronal plane, and average posterior angle were 13.7mm, 52.2°, and 48.9° at commissure, 10.5mm, 56.3°, and 31.4° at nasolabial fold, 7.3mm, 88.1°, and 33.3° at center of upper lip, 10.1mm, 57.2°, and 30.9° at mid-lateral upper lip, 5.9 mm, -87.5°, and 66.9° at the center of lower lip, and 6.7mm, -12.7°, and 61.5° at mid-lateral lower lip respectively.This study was tried to define the basis of smile in reconstruction of facial paralysis and to suggest the objective method of assessing preoperative state and postoperative result. Further studies should be followed to establish the standardized useful data for smile reconstruction.

완전학습과 선행조직자 의역조건이 학습성과에 미치는 효과

강영석 한국교육학회 1992 敎育學硏究 Vol.30 No.2

한국항공우주연구원 항공추진연구부 연구동향

강영석,김재환(Jaehwan Kim) 한국유체기계학회 2020 유체기계 연구개발 발표회 논문집 Vol.2020 No.8

고문헌 산출지 백토로 제조된 백토안료의 특성 연구

강영석,문성우,정혜영 한국문화재보존과학회 2017 보존과학회지 Vol.33 No.6

고문헌에 기록된 산지 정보를 바탕으로 현지조사를 실시하고, 조사결과를 바탕으로 강원도, 경상도 지역 등에서 총 6개의 시료를 확보하였다. 확보된 시료를 대상으로 수비를 통해 백토안료를 제조하고, 물성 및 기능성 평가를 실시하였다. 백토안료의 주요 구성광물을 분석한 결과, YBW, HBW, MCW는 석영, 장석 등으로 이루어져 있으며, SGW, HOW, HGW는 카올리나이트, 일라이트 등의 점토광물이 주 구성광물을 이루는 것으로 확인되었다. 백토안료 HGW는 색도에서 가장 높은 92.9의 L*값을 보였고, HOW와 HGW는 각각 94.1%, 89.6%의 높은 은폐율을 나타냈으며, 270.3 mm와 223.3 mm의 우수한 발림성을 갖는 것으로 확인되었다. 전체적으로 카올리나이트, 일라이트 등이 주요 구성광물을 이루는 HGW, HOW, SGW의 경우, 색도, 은폐력, 발림성 등에서 우수한 특성을 보였으며, 단청용 백색안료로서 활용가능성이 높은 것으로 판단된다. An investigation on the records of old document was conducted to identify the producing area of white clay and there were on-the-spot surveys to secure raw materials of white clay pigment. Based on the survey results, six raw materials were obtained from the region of Gangwon-do and Gyeongsang-do, South Korea and white clay pigment was subsequently manufactured by applying the hydraulic elutriation method. The results show that the major constituent minerals of YBW, HBW, and MCW were quartz and plagioclase, whereas SGW, HOW, and HGW were composed of clay minerals such as kaolinite and illite. HGW showed the highest L*-value of 92.9. HOW and HGW showed an opacity of 94.1% and 89.6%, respectively, and they had excellent spreadability (270.3 mm and 223.3 mm, respectively). Therefore, HGW, HOW, and SGW have excellent characteristics in terms of color, opacity, and spreadability, and are considered to be highly applicable as white pigments for the Dancheong.