• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.9 no.1
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• pp.45-52
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• 2000

The purpose of this research was developing an integrated way to solve two typical tolerance optimization problem i.e. optimal tolerance allotment and design centering. A new problem definition design centering-tolerance allotment problem (DCTA) was proposed here for the first time and solved. Genetic algorithm and coarse Monte Carlo simulation were used to solve the stochastic optimization problem. Optimal costs were compared with the costs from the previous optimization strategies Significant cost reductions were achieved by DCTA scheme.

• The Mathematical Education
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• v.51 no.4
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• pp.317-335
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• 2012

The purposes of this study were to investigate the perceptions of teachers and students on the implementation of the intensive course completion system in mathematics courses and to provide suggestions for the improvement of the system. Five high school mathematics teachers and 338 10th graders and 87 11th graders in 2 high schools located in Gyeonggi-do participated in this study. The results of this study indicated that the intensive course completion system is more appropriate to the subjects which require less time allotment or practical exercise than mathematics courses. For better implementation of the intensive course completion system in mathematics courses, first of all, enough time allotment for teaching and learning mathematics should be guaranteed. Otherwise, the system can make students feel more burden of learning due to increase in learning volume of mathematics courses.

• Journal of Nutrition and Health
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• v.34 no.6
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• pp.701-714
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• 2001

The purpose of this study was to apply a PERT-type system, a combination of the project evaluation and review technique(PERT) and critical path method(CPM) on the employees' work time management of flood preparation, assembly, transportation and cleaning in home-delivered meals program for elderly The resources allotment heuristic program was developed by considering the number of employees and cooking utilities, being limited resources of home- delivered meals program. This program could assign the employees to perform the works included in flood preparation, assembly, transportation ind cleaning. Critical path and activities ware identified by PERT-type system on the basic of work time investigation in five senior centers. Work sheets were invented to perform the work by the shortest path with flexible employees'maximum flow As a result of the work time investigation, the most prevalent activities were ones of preparation in center C and E. Besides, the preparation(over fifty percent) was the most proportion among flood preparation, assembly, transportation and cleaning in center C and E. Critical path and activities of 'C'center were cucumber in sauce preparation path and assembly, wrapping in assembly path and case delivery in transportation path. Critical path and activities of 'E'center were Pan-fried Potato Preparation Path and assembly, case covering, wrapping in assembly Path. The work sheet invented by the heuristic program and PERT-type system reduced the work completion time and man hours in both centers.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.13 no.2
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• pp.81-87
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• 2004

This paper deals with a new approach to tolerance optimization problems. Optimal tolerance allotment problems can be formulated as stochastic optimization problems. Most schemes to solve the stochastic optimization problems have been found to exhibit difficulties in multivariate integration of the probability density function. As a typical example of stochastic optimization the optimal tolerance allotment problem has the same difficulties. In this stochastic model, manufacturing system is represented by Gauss-Markov stochastic process and the manufacturing unit availability is characterized for realistic optimization modeling. The new algorithm performed robustly for a large deviation approximation. A significant reduction in computation time was observed compared to the results obtained in previous studies.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2007.10b
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• pp.197-201
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• 2007

In recent years in Japan, derelict land by aging fanners has increased at the same time as the desire of city dwellers for a more natural, leisurely lifestyle. In response, an increasing number of citizens' farms(or 'allotment gardens') have opened in and around urban areas. Citizens' farms with overnight accommodation are known as 'kleingartens'. As a case study, we evaluated a kleingarten in the town of Suo-oshima by interviewing the resident caretaker and conducting a questionnaire survey of facility users. Our survey revealed a number of ways in which the facility could be improved to meet user needs. The case study also suggested that kleingartens are an effective means of revitalizing local communities in rural areas.

• Journal of Nutrition and Health
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• v.35 no.10
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• pp.1089-1103
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• 2002

The purpose of this study is to identify factors influencing a health-promoting lifestyle among highly educated, married women with or without work outside the home. It is a direct interview, cross-sectional study. Subjects were 250 married, unemployed women and 236 married women employed as teachers. Women who have not graduated college, work only part-time or have no current spouse were excluded. The instruments used were the Health-Promoting Lifestyle Profile (Walker, et al., 1987) and the Habitual Physical Activity Questionnaire (Backe, et al., 1982), The HPLP scores of the employed, married women were significantly lower than those for unemployed respondents. for both groups of respondents, the self-actualization subscale was the highest score and the exercise subscale was the lowest score. The HPLP indicated that exercise is a very weak area. Thus, an increase in exercise time and frequency, especially for highly educated, married women, is suggested. Multiple regression analysis revealed that a health-promoting lifestyle of unemployed, married women was affected by sports activity, leisure-time activity, depression and satisfaction of role allotment. On the other hand, a health-promoting lifestyle of employed, married women was affected by sports activity, leisure-time activity, stress, self-perceived economic status, coffee consumption, husband's help, and maid's help. That is, with more sports activity and leisure-time activity, less depression and more satisfaction of role allotment, unemployed, married women would have higher HPLP scores. Also, with more sports activity and leisure-time activity, less stress, better self-perceived economic status, less coffee consumption, more husband's help and more maid's help, employed, married women would have higher HPLP scores. The results indicate that sports activity and leisure-time activity were the first and the second determinants of health-promoting lifestyle respectively. Therefore, an exercise-centered health-promoting program for highly educated, married women is suggested in the community or workplace. Especially, the program should be designed to be easily approachable for highly educated, employed married women who have more of a role burden compared to unemployed women.

• Journal of the Korean Society of School Health
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• v.15 no.1
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• pp.107-121
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• 2002

In this study we analysed time allotment and the contents of a health textbook and its teacher's guide book of the 7th elementary curriculum. We intended to offer the basic data needed to establish the single health education. So the analysed results are as follows according to the health education model developed by the korean nursing association and health teachers' meeting and the teaching time allotment presented by the teacher's guide book. It's goal is practice in regular class time of the subjects for the time and contents of health education in the 7th elementary curriculum. The total class periods of health education of the 7th elementary curriculum are 229 hours and annual periods of health education per year are an average of 38 hours. The health education of the 7th elementary curriculum is separated into the 9 following subjects: Wise life, Pleasant life, Righteous life, We are 1st grade, Physical education, Science, Social studies, moral education and Practical course. The health education of the 6th elementary curriculum was combined with the units of physical education, but in the 7th curriculum it must be separated by a single, required health subject. The contents of health education of the 7th elementary curriculum is mostly dominated by units of community and environmental health with a total of 55 hours (24%). Therefore, the units of home health and social health, development of physical strength are fairly insignificant. The newly added contents in the 7th curriculum are "pregnancy and child birth, the protection and counterplan from rape, the reasons and prevention of stress, the reasons and the treatment of obesity, the damage of smoking and drinking, etc. According to the result above, we must establish the criteria for each year's health education in the 8th elementary curriculum. The contents of mental health, home health and social health should be revised and added new items. The health education that is separated in some subjects now must be established as a systematically integrated health education.

• Journal of Elementary Mathematics Education in Korea
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• v.17 no.3
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• pp.431-455
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• 2013

In this thesis, I classified various meanings of fraction into two categories, i.e concept(rate, operator, division) and model(whole-part, measurement, allotment), and surveyed appearances which is shown in Korea elementary mathematics textbook. Based on this results, I derived several implications on learning-teaching of fraction in elementary education. Firstly, we have to pursuit a unified formation of fraction concept through a complementary advantage of various concepts and models Secondly, by clarifying the time which concepts and models of fraction are imported, we have to overcome a ambiguity or tacit usage of that. Thirdly, the present Korea's textbook need to be improved in usage of measurement model. It must be defined more explicitly and must be used in explanation of multiplication and division algorithm of fraction.

• Journal of Korean Home Economics Education Association
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• v.2 no.1
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• pp.91-99
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• 1990

By the comparative analysis of middle school Home Economics curricula in the U.S, Sweden, japan, Taiwan, and Korea, this study attempts to understand the current Home Economics education and to access its trends for each country. Based on the findings of the analysis, this study also seeks to get the major implications of the analysis for the betterment of the Korean Home Economics Education. The main sources of information and data analyzed here are :1)curricula for 10 School Districts in Pennsylvania state as representives of the U.S ; 2)Home Economics curriculum for middle school in Sweden ; 3) Home Economics Teaching Guidelines in Japan ;4)Home Economics curriculum in Taiwan ; and 5) Home Economics curriculum in Korea. Content Analysis technique is applied in this study. The major elements of contents include :1)structure of the curriculum ;2)subject name ; 3)time allotment; 4)goals and objectives ; 5)subject areas and content composition ; 6) other related characteristics for the implemention of the curriculum Summarized results of the study outline as follows; 1)Home Economics is offered as independently required subject without sex discrimination in all five countries. 2)Time allotment for Home Economics in Sweden is double that in the other countries. 3)The common goals of Home Economics courses is practical learning experiences closely related to reality. 4) In terms of subjects areas, Food and Nutrition, Clothing & Textiles, Housing Human Development, and Child care are offered in three of four countries, which is also similar to those of Korea. In addition Consumer Education is also covered in the U.S., Sweden and Korea. 5)Curriculum can be utilized as instructional planning materials due to the clear specification of instructional method, materials, and evaluation method on the curriculum, especially in the U,S, and Taiwan.

• Journal of Korean Home Economics Education Association
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• v.1 no.1
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• pp.33-42
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• 1989

By the comparative analysis of high school Home Economics curricula in the U.S., Japan and Taiwan, this study first attempts to understand the current Home Economics education and to access its treads for each country. Based on the findings of the analysis, the study also seeks to get the major implications of the analysis for the betterment of the Korea Home Economics Education. The main sources of information and data analyzed here are： 1) curricula for both Oklahoma and Ohio state as representatives of the U.S.； 2) Home Economics Teaching Guidelines in Japan； and 3) Home Economics curriculum in Taiwan. Content Analysis technique is applied in this study. The major elements of contents include：1) structure of the curriculum； 2) subject name； 3) unit (time) allotment； 4) goals； 5) subject areas and content composition； and 6) other related characteristics for the implementation of the curriculum. Summarized results of the study outline as follows： 1) Home Economics is offered as independently required subject with equal status to Mathematics, Science, and Social Studies subject in all three countries； 2) Sex discrimination is prohibited both in the U.S. and Taiwan, while in Japan sex equity is not secured for Home Economics educations； 3) Time allotment for Home Economics in Japan and Taiwan is similiar to that in Korea；4) Subject areas cover such fields as Foods and Nutrition, Clothing and Textiles, Home Management, and Human Development in all three countries, which is similiar to those of Korea. In addition, Consumer Education and Career Education are also covered in the U.S., whereas in Japan Child Care is offered； and 5) Curriculum can be utilized as instructional planning material due to the clear specification of instructional methods, materials, and evaluation methods on the curriculum, especially in the U.S. and Taiwan.