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劉仁鉉 단국대학교 1976 論文集 Vol.10 No.-
This study was undertaken in order to clarify whether any bodily or functional characteristics existics exist in individuals who have had 20 to 30 years of experience in sports activities since youth, when compared with those who have had no special training in sports. The Subject used in the study were 45 healthy males(of which 25 comprised the trained group and 20 comprised the control or untrained group). Most of the trained group belong to the teaching profession, such as instructors in high schools, colleges do sports clubs, and most of the untrained group were high school teachers college instructors, or office clerks. Measurement were taken of the following items: Morphology; height, body weight, chest, relative body weight and relative chest. Muscle strength; hand grip strength, back strength. Respiratory and circulatory functions; vital capacity, resting pulae rate, blood pressure, modified step test, and postural blood pressure reflex. Nerve regulating function; foot standing with eyes closed, stepping and reaction time tests. The results obtained were as follows. 1. Morphologically, as shown in Table 2 and Fig.I, the trained group exceeded in height(1.6%) body weight(10.3%) and chest(4.9%). In all these items a significant difference was observed with a ratio do risk of 1%. No difference with a ratio of risk of 5% was observed in relative body weight and relative chest. When compared with the average physique of the Korean male of 1956, the experimental subjects were still in their youths, and the subjects belonging to the trained group, generally, showed better physique than the average Korean Male. It may be inferred from the relative body weight that, after discontinuation of regular training, the balance of the intake and output of energy will tend toward the positive, resulting in a tendency to become overnourished, and consequently to become overweight after middle age. 2. As regards muscle strength and respiratory and circulatory functions significant diffeeences were observed in hand grip strength, resting puls rate, and modified step test. Especially in the modified step test the fitness index in the trained group was 60.3 and 51.5 in the untrained group indicating a superiority in adaptabitity of the respiratory and circulatory functions to excercise of the trained group over the untrained group. No significant differences were observed in systolic and diastolic pressures. But as regards the influence of postural blood pressure reflex, the trained group showed a shorter recovery time than the untrained group. indicating that in the former group blood pressure regulating funtion was superior to that of the latter group. 3. As regards the nervousregulating funtion, significant difference with a ratio of risk of 1-5% was observed in storg standing with eyes closed and reaction time tests. 4. From the aforementioned it may be inferred that the trained group by virtue of physical training and sports continued for long duration since youth is capable of maintaining "youthfulness" with regard to vacular and other reflexes for longer periods than the untrained group.
自動化 倉庫設備 Carousel시스템의 計量化에 관한 硏究
兪人善 水原大學校 1985 論文集 Vol.3 No.-
This paper considers a automated carousel storage/retrieval system in warehouse, which is simplified under assumptions. The objective is to derive measures of performance such as mean waiting time and mean queue length. Two service disciplines are considered: FIFO (First-In First-Out) and SLTF (Shortest Latency Time First) scheduling. The results are obtained by analyzing a simple single queue model of Skinner[9].
유인술 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.2
Emergency Medical Services(EMS) system is definded as the systemized orgarnization is composed of all elements for the emergency medical care profer of good quality inside the established region. So EMS is the extension of emergency medical care into the community. The 15 elements of EMS system as follows:(1)manpower, (2)training, (3)communications, (4)transportation, (5)facilities, (6)critical care units, (7)public safety agents, (8)consumer participation, (9)access to care, (10)transfer of care, (11)standarization of patients records, (12)public information and education, (13)independent review and evaluation, (14)disaster linkage, and (15)mutual aid agreements. An EMS system may be developed to address the emergency medical needs of a small community, a metropolis, a large geographical region, of a nation. The majority of systems are focused on the local of regional level. Most organizer of EMS do not have the luxury of developing completely new systems, so they have to work with pre-existing components, such as hospitals and ambulance, that are already providing services. Therefor, the construction of EMS system in Taejeon city is accomplished with a similar method. Taejeon city is accomplished with a similar method. Taejon city is central area of Korea geographically. In the size of a city the greatest city next to Seoul, but it has the most small population among the 6 large city of Korea. On the present condition of emergency medical resources in Taejeon city the problem points are a deficit of prehospital care persons and training, the regional disproportion of general hospital and the disproportion of emergency hospital grade. Therefor, the pertinet harmony of this resources is required.