• Journal of Korean Home Economics Education Association
• /
• 제11권2호
• /
• pp.89-110
• /
• 1999

The purpose of this study was to investigate the perception and eating behaviors of middle school students in Kwangju area about food and nutrition section of Home Economics course. The subjects were 480 middle school students. The major results were as follows： On the perception f food and nutrition section, the 1st graders learned ‘how to settle the problems related to food and nutrition and food choices’. The 2nd graders learned ‘the knowledge and principle of food and nutrition for improving dietary life’. The 3rd graders learned ‘actual dietary life functions like arranging menu and preparing meals’. Consequently, there was a significant difference in each grade and all boy and girl students have the highest response to the item ‘they learn how to settle the nutrition problem and foods choices’. On the interests in food and nutrition section, lower graders and girl students have higher interest than hgiher graders and boy students. The area which was considered as most interesting in food and nutrition sections was ‘cooking’ in all students. The perception of the concern on dietary life after learning food and nutrition section was higher in the 1st graders. On the perception of the area where was a great change in their own dietary life after learning food and nutrition section, the 1st graders responded there was a great change in ‘balanced dietary life’, the 2nd graders in ‘eating habit and nutrition of adolescence’and the 3rd graders in ‘cooking’. Especially, girl students showed more changes. On the perception of degree which food and nutrition section gives a help to actual life, students over 50% responded that it was helpful to their actual life. This showed that the lower the grades, the more help it gave to those students. On the perception of mother’s job, the students with working mother considered that they learned ‘actual dietary life functions like functions like arranging menu and preparing meals’from the food and nutrition section. In addition, they had high interests in the area of ‘cooking’. It was recognized that as the family size was greater, the food and nutrition section gave more helps to actual life. On eating behaviors of breakfast, the higher the grade, the more frequent they don’t have breakfast, boy students have more frequencies of having breakfast than girl students and the primary reason of not having breakfast is poor appetite. On whether going without a meal affects study or not, most of the 1st, 2nd and 3rd graders whether they are boys and girls or not responded it affected their study. On eating behaviors of lunch, most of boy and girl students in the 1st, 2nd 3rd grade have lunch box. On eating behaviors of supper, eating time is usually between 7：00 and 8：00 p.m and eating hour is mostly 10 or 15 minutes. On eating behaviors between meals, frequency of eating between meals is mostly once or twice a day and girl students have more frequencies of eating between meals, and the cause was hunger commonly in boy and girl students and ‘killing time’in girl students. The focus in getting the foods is ‘taste’and favorite food is fruit regardless of the grade.

• Korea journal of population studies
• /
• 제8권2호
• /
• pp.46-67
• /
• 1985

In this paper, an attempt has been made to examine the pattern of mortality in Korea during 1970~80. By applying the age-sex specific mortality rates quoted from 1978~79 life tables for Korea published by NBOS, EPB to those of the West pattern of regional model life tables and the far eastern pattern of model life tables for developing countries, life expectancy at birth were calculated. Also the author reviewed the trends of death rates, life expectancy and cause of death using vital registration data and other materials. Summarized results are as follows; 1. Crude death rates in Korea was reduced to one fifth in the 1983 compared to that in 1920's. Life expectancy also improved to almost double in 1985 compared to 1920's. But the difference in the life expectancy between male and female increased during that period and it was recorded as 6.4 years in 1985. This discrepancy was mainly due to the different tempo of decreasing in mortality level by sex, particularly, for the age 40 and above. 2. For the pattern of mortality in Korea, it showed that female mortality could accounted closer to the West pattern model life tables. There were high similarity between actual pattern prevalent in Korea and West pattern. And its coefficient of variance was also very low. However for the case of male, it was difficult to find the exact model life tables for explaining the actual situation on the male mortality pattern which means exist considerable dissimilarity in older ages. The Far eastern pattern of U.N. model life tables show better results than West pattern, however, the deviation of the pattern to actual was severe. Also in Far eastern pattern, high coefficient of variance was existed. Furthermore it was found in the paper that the mortality level of Korean male for the age 40 and above were much higher than that of Far eastern pattern which was reflected the high mortality of the male adult in Far east region. 3. The analysis of cause of death showed that circulatory disease such as cerebrovascular disease and hypertensive disease accounted for the leading cause of death in Korea for the age 40 and above. There should he paid special attention to chronic retrogressive diseases for the older age groups. For younger age groups, injury and poisoning were reported as important cause of death.

• The Journal of the Korean life insurance medical association
• /
• 제15권
• /
• pp.169-191
• /
• 1996

• Journal for History of Mathematics
• /
• 제17권2호
• /
• pp.1-8
• /
• 2004

In this paper we try to research in the influences which the concepts of infinity have made to our life, and how they have led the trend of the times through studying on the process of changes of concepts of infinity. Also we intend to make a research in how the shift of paradigm on the view of life have been changing under the circumstances in which the concepts of infinity have been accepted as an actual meaning.

• The Journal of Asian Finance, Economics and Business
• /
• 제8권5호
• /
• pp.667-678
• /
• 2021

The industrial life cycle theory was extended to the product life cycle theory and the corporate life cycle theory, but a conceptual life cycle was presented, and quantitative empirical evidence for this was insufficient. It is intended to improve appropriate resource planning and resource allocation by quantitatively predicting the industrial cycle and its position (age) in the cycle. Human resources, tangible assets, and industrial output analysis were conducted based on 28 years of actual data of 39 industries in Korea by applying the Gompertz model, which is a population ecology prediction model. By predicting with the Gompertz model, the coefficient of determination R2 value was 97% or more, confirming the high suitability with the actual cumulative sales value of the industry. A numerical model for calculating the life cycle of each industry, calculating the saturation of input resources for each industry, and diagnosing the financial stability of the industry was presented. These results will contribute to the decision-making of industrial policy officers for budget planning appropriately for each stage of industry development. Future research will apply the numerical model of this study to foreign national industries, complete an inter-industry convergence diagnostic model (e.g. ease of convergence, suitability of convergence, etc.) for renewal of fading industries.

• Nuclear Engineering and Technology
• /
• 제36권5호
• /
• pp.475-484
• /
• 2004

Extending the lifetime of a nuclear power plant [(hereafter referred to simply as NPP)] is one of the most important concerns in the global nuclear industry. Cables are one of the long-life items that have not been considered for replacement during the design life of a NPP. To extend the cable life beyond the design life, it is first necessary to prove that the design life is too conservative compared with actual aging. Condition monitoring is useful means of evaluating the aging condition of cable. In order to simulate natural aging in a nuclear power plant. a study on accelerated aging must first be conducted. In this paper, evaluations of mechanical aging degradation for a neoprene cable jacket were performed after accelerated aging under tcontinuous and intermittent heating conditions. Contrary to general expectations, intermittent heating to the neoprene cable jacket showed low aging degradation, 50% break-elongation, and 60% indenter modulus, compared with continuous heating. With a plant maintenance period of 1 month after every 12 or 18 months operation, we can easily deduce that the life time of the cable jacket of neoprene can be extended much longer than extimated through the general EQ test. which adopts continuous accelerated aging for determining cable life. Therefore, a systematic approach that considers the actual environment conditions of the nuclear power plant is required for determining cable life.

• Journal of Applied Reliability
• /
• 제11권4호
• /
• pp.357-369
• /
• 2011

Eco-robot for collecting recycling products is the machine which collects non-industrial wastes such as cans, PET bottles and etc. to reuse them as recycling resources. This eco-robot is operated in the condition that it should compress and hold various products without knowing their geometric shapes and material properties. For this reason reliability problems like malfunction or failure. comes to emerge, but the reliability test conditions to assess its performance and durability have not been founded yet. Therefore in this research failure mechanism of the eco-robot was analyzed and life test equipment which can reproduce actual usage conditions was developed. The compression levels in the life test were determined by measuring the crushing force acting on test products and Furthermore the test specimens which have equivalent shape and material properties with those of cans and PET bottles were proposed by simulating the deformation characteristics so that the actual compression conditions were set up in the test.

• Journal of the Korean Society of Costume
• /
• 제23권
• /
• pp.131-150
• /
• 1994

Knitwears are originated earlier than textiles in human beings life. And then human beings life. And then human beings have been continuously developing as life patterns of human beings are becoming various and society is rapidly changing. Recently , changing life styles of the consumer emphasize the importance of the high quality , individuality , variety , and activity of knitwears. In this study , university women and housewives livings in Seoul have been surveyed in the cause of analyzing of the consumer's actual conditions. And eight brands of th specialized knit enterprises also have been surveyed, though it is imperfect . The purpose of this study lies in giving a help to the rational clothing habits of consumer and presenting some courses for aiming of korean knit industry. I made use of percentage and $x^2$-test for the analysis of the data and analyzed the contents of the question papers.

• Journal of the Korean Institute of Rural Architecture
• /
• 제5권1호
• /
• pp.22-31
• /
• 2003

The project to improve the structure of village has been conducted in order to improve the residential environment since 1960's. Also, with the rural exodus and the aged population in a rural area during the rapid change of social structure in our country, the old people's problem in a rural area became a problem beyond the welfare of the old age. Moreover, as the role of old people who established their position as the subject of social & economic activities in a rural area gradually increases, an attention to problems related on old people also increases. Especially, the leisure life of old people can be an important factor on the type of leisure life of old people in a cultural village and the demands for facilities for old people by studying the present situation of facilities for old people and the actual situation of their use in a welfare center.

• Journal of the Korean Institute of Rural Architecture
• /
• 제12권2호
• /
• pp.59-66
• /
• 2010

The idyllic housing is dreamed by citizens today. The government has promoted the rural activation and satisfied citizen's needs about idyllic housing through the advanced rural village development project. Jecheon city aims to develop idyllic housing area in Baegun. This study investigated the resident' consciousness and actual conditions of idyllic housing in Baegun by field study. The aim of this study is to suggest data of idyllic housing policy by analysis idyllic housing of actual condition and resident' consciousness of demands. The idyllic housing of resident is aged sixty five or more from Seoul and Gyeonggi-do. Second, they want to be maintenance of life convenience facilities, improvement of traffic, necessity of medical institution. Third, it is necessity of variety program to solve conflicts between residents and immigrants and to make community of residents.