• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.234-235
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• 2004

• The Pure and Applied Mathematics
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• v.8 no.2
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• pp.137-143
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• 2001

In this paper, we study the existence, uniqueness and norm estimate of solutions for the nonlinear delay integro-differential system.

• Journal of Korean Home Economics Education Association
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• v.13 no.2
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• pp.85-99
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• 2001

The purpose of this research is intended to analyze the actual condition of in-service training for the teachers who teach Home Economics Education in the middle and high school and to survey their viewpoints on the actual condition of the in-service training. So I could find the effective ways on the in-service training by finding many kinds of needs and improvements on the basis of present problems in the Home Economics Education. The research results are as follows : 1. This research indicated that most teachers answered that the most proere significant per time of the in-service training was the school vacations(49.5%). 63.4% of the teachers answered that the present 60 hours on the question of how many hours are appropriate is proper. On the question of what the most proper cycle for the educational training is. 47.2% of the teachers answered that the present 3-year cycle is appropriate. 35% of them supported the selecting system for the trainee according to the experienced or non-experienced for the up-to-date in-service training. And 35% of them answered that the speakers for the training program must be the experienced teachers in education. In the contents of the training program. many teacher insisted that the percentage of the text for the major should be raised(49.6%). According to the survey about the teaching and learning methods and evaluation. teachers were satisfied with the levels of satisfaction on the teaching and learning methods in 65.1%. This survey indicated that teacher preferred the discussion and case study(35.9%). the practice-centered class(29.3%) and the on-the-spot study(20.9%) in order on the teaching methods. In terms of the educational environment. 56.9% of the teachers answered the number of trainee is too many and they suggested that the proper number of trainee is about 20∼30. 2. This research showed that the most important problem of this training system was the over-population of the trainee(33.5%) and the most severe problem of the educational environment was the lack of air-cooled and heated system(24.8%).

• Korean Journal of Health Education and Promotion
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• v.24 no.4
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• pp.149-159
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• 2007

This study was intended to provide basic data for developing an oral health management program for diabetic patients by understanding their oral health condition and defining the influence of diabetes on oral health. The following results were obtained through intraoral examination and questionnaire surveys done on one hundred and twenty two diabetic outpatients who visited endocrine department at Yeungnam University in Daegu and internal medicine department at Chungmu hospital in Cheonahn for 4 months from November, 2005 to February, 2006. DMF index according to the gender was significantly higher in females only in Filling index (p <0.05). Missing index increased as the age increased (p <0.001). Papillary bleeding index was significantly higher in females (p <0.05). Several indices which show oral status significantly higher as the duration of diabetes increased and as the blood sugar level before meal was higher (p <0.01, p <0.05). In a group that received oral hygiene education, several indices which show periodontal status were significantly lower than those in a group that didn't have it (p <0.001). According to the results, not only diabetic control but also general oral care should be included in self-management education for diabetic patients and this should be accomplished by appropriate oral health education program and staffs.

• Korean Institute of Interior Design Journal
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• v.17 no.1
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• pp.155-161
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• 2008

In Seowon architecture, there are four kinds of space conditions according to the site plan and the figure of education area. The education area has three main buildings such as Kangdang, Dongjae, Seojae. In case Kangdan locates in front of Dongjae and Seojae(so called Junkangdang-Hoojaesa), but in another case Dongjae and Seojae locates in front of Kangdang(so called Junjaesa-Hookangdang). This four space conditions affect to decide the floor plan and the window & door system of Kangdang. In Junjaesa-Hookangdang type, the front and rear wall has more open system than in Junkangdang-Hoojaesa type. In Junjaesa-Hookangdang type the direction of Kangdang is absolutely open to front education area, but in Junkangdang-Hoojaesa type the direction of Kangdang is absolutely open to rear education area. These floor plan aims at making up education area more closely. In window & door system the rear parts of Junjaesa-Hookangdang type have generally opaque system such as Golpanmoon or Panjangmoon, but Junkangdang-Hoojaesa type breaks this rule in order to emphasize front facade of building.

• The Mathematical Education
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• v.58 no.3
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• pp.423-442
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• 2019

Stepping into the beginning of the fourth industrial revolution, we need new mathematics education plans and policies to foster talent in people for future. Investigating the present condition and teachers' perceptions of mathematics education in schools is an essential process in making mathematics education plans and policies that reflect the periodical changes and social needs. Thus, we developed a survey to investigate teachers' perceptions and present condition of mathematics education, conducted the survey for teachers in elementary, middle, and high schools, and analyzed the results of the survey. In this study, focusing on the results of the survey, we interpreted the results and provided implications for mathematics educational policies. Through frequency analysis of individual questionnaires and crosstabulation analysis between questionnaires, we could provide mathematics teachers' overall perceptions of mathematics education and basic information on the conditions of mathematics education in the schools. In addition, the findings of this study suggest that policymakers should consider the followings when developing new mathematics education plans and policies: having the proper number of students per class, reducing non-teaching work, supporting teachers' expertise in evaluation, improving Internet access and technology equipment, supporting the school administrators' change of perceptions of mathematics education, retraining teachers in the active use of ICT or technological tools, and supporting students having difficulty learning mathematics.

• Journal of Korean Home Economics Education Association
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• v.20 no.4
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• pp.59-75
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• 2008

This study is designed to support the development and the teaching of revised curriculum of 2007 "Technology & Home Economics" by investigating the actual condition and the necessity of education for elderly housing education. Questionnaire survey was conducted with 488 high school students in Gyeongnam in 2008. The data analyzed by descriptive statistics, t-test, One-way ANOVA, Duncan's multiple range test by using SPSS 14 program. The results showed that most of the students were dissatisfied with their middle school education of elderly housing due to the lack of interesting and practical contents. Thus, various teaching-learning methods where student can experience and experiment is needed. Also, the students demanded more of factors of elderly housing, spacing plan, elderly welfare service and less of three-generation housing and senior housing in their elderly housing education. The needs of education contents differed among students depending on variables such as sex, graduated middle school, household income, dwelling space and length of residential years. Therefore, revised 2007 curriculum of "Technology & Home Economics" should include required contents in related chapters. Because there are significant differences among textbooks about elderly housing, further attention needs to be paid to the new textbooks in order to include education contents evenly. At the same time, teachers should organize their teaching contents considering the divergence of variables. The effect of elderly housing education will be maximized if the revised curriculum consists of more experimental activities such as elderly simulation in the local community.

• Geophysics and Geophysical Exploration
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• v.11 no.2
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• pp.153-160
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• 2008

Seismic modeling is used to simulate wave propagation in the earth. Although the earth's subsurface is usually semi-infinite, we cannot handle the semi-infinite model in seismic modeling because of limited computational resources. For this reason, we usually assume a finite-sized model in seismic modeling. In that case, we need to eliminate the edge reflections arising from the artificial boundaries introducing a proper boundary condition. In this study, we changed three kinds of boundary conditions (sponge boundary condition, Clayton and Engquist's absorbing boundary condition, and Higdon's transparent boundary condition) so that they can be applied in elastic wave modeling for anisotropic media. We then apply them to several models whose Poisson's ratios are different. Clayton and Engquist's absorbing boundary condition is unstable in both isotropic and anisotropic media, when Poisson's ratio is large. This indicates that the absorbing boundary condition can be applied in anisotropic media restrictively. Although the sponge boundary condition yields good results for both isotropic and anisotropic media, it requires too much computational memory and time. On the other hand, Higdon's transparent boundary condition is not only inexpensive, but also reduce reflections over a wide range of incident angles. We think that Higdon's transparent boundary condition can be a method of choice for anisotropic media, where Poisson's ratio is large.

• Korean Journal of Community Nutrition
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• v.15 no.1
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• pp.124-136
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• 2010

The purposes of this study were to investigate importance level and performance frequency of the dietitians' duties and task elements, to examine the actual condition of education and need for education, to analyze the interrelation between their tasks and education, and to provide the direction of education for the contracted Business & Industry (B & I) foodservice dietitians. The task elements of receiving, ordering, HACCP management and directing serving process were done almost every day. In terms of the importance of tasks, food sanitation management, personnel sanitation management, receiving and ordering were high. Meanwhile, the computerization of their works was being carried out on the whole, showing a higher frequency in all the details of procurement management and accounting management, as well as task elements such as menu planning, leftover and food waste management, HACCP management and human resource management. In the past three years, HACCP management, cost management, planning work schedule and allotting a task, general business and sale bond management were increased most and rapidly. For the actual condition of education, dietitians got more education for the duty of sanitation, safe and facility/utility management than any other duty, while they did less education of procurement management and office management than others. Meanwhile, the education for sanitation, safe and facility/utility management and accounting management were very much required. For the relationships of frequency of duty and the necessity of education, seven task elements including food sanitation management were correlated positively. Eighteen tasks besides menu planning had a significant positive correlation between the importance of duties and the necessity of education.

• Korean Journal of Mathematics
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• v.17 no.1
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• pp.53-66
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• 2009

We show the existence of a nontrivial periodic solution for the superquadratic parabolic equation with Dirichlet boundary condition and periodic condition with a superquadratic nonlinear term at infinity which have continuous derivatives. We use the critical point theory on the real Hilbert space $L_2({\Omega}{\times}(0 2{\pi}))$. We also use the variational linking theorem which is a generalization of the mountain pass theorem.