• Journal of Radiation Protection and Research
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• v.39 no.3
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• pp.127-133
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• 2014

North Korea's uranium enrichment facility is a matter of international concern. It is of particular alarming to South Korea with regard to the security and safety of the country. This situation requires continuous monitoring of the DPRK and emergency preparedness on the part of the ROK. To assess the detectability of an undeclared uranium enrichment plant in North Korea, uranium concentrations in the air at both a short and a long distance from the enrichment facility were estimated. $UF_6$ source terms were determined by using existing information on North Korean facility and data from the operation experience of enrichment plants from other countries. Using the calculated source terms, two atmospheric dispersion models (Gaussian Plume Model and HYSPLIT models) and meteorological data were used to estimate the uranium particle concentrations from the Yongbyon enrichment facility. A maximum uranium concentration and its location are dependent upon the meteorological conditions and the height of the UF6 release point. This study showed that the maximum uranium concentration around the enrichment facility was about $1.0{\times}10^{-7}g{\cdot}m^{-3}$. The location of the maximum concentration was within about 0.4 km of the facility. It has been assumed that the uranium sample of about a few micrograms (${\mu}g$) could be obtained; and that few micrograms of uranium can be easily measured with current measurement instruments. On the contrary, a uranium concentration at a distance of more than 100 kilometers from the enrichment facility was estimated to be about $1.0{\times}10^{-13}{\sim}1.0{\times}10^{-15}g{\cdot}m^{-3}$, which is less than back-ground level. Therefore, based on the results of our paper, an air sample taken within the vicinity of the Yongbyon enrichment facility could be used to determine as to whether or not North Korea is carrying out an undeclared nuclear program. However, the air samples taken at a longer distance of a few hundred kilometers would prove difficult in detecting a clandestine nuclear activities.

• Journal of Korean Academy of Nursing Administration
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• v.8 no.3
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• pp.457-474
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• 2002

Purpose : The purpose of this study was to construct the Organizational Effectiveness Model that explains and predicts the effectiveness of a nursing unit from the organizational-behavioral perspective. Furthermore, this study arms to develop a comprehensive organizational effectiveness model. Method : The subjects of this study consist of two groups: 455 nurses and 538 patients. Staff nurses who were employed and twenty patients from each ward in four university hospitals located in Seoul, Pusan and Kyungki were involved. Data were collected from October 4th to October 14th in 2000 by self-report questionnaire. Data were analyzed by the SAS for the general characteristics of the subjects, descriptive statistics, test for the reliability and correlations. Fitness of the hypothetical model were tested using Lisral 8.12(a) program. Result : With the findings from this study, duration of employment and the locus of control among the characteristics of the nurses, job enrichment among the characteristics of nursing job were direct or indirect predictors of the organizational effectiveness of the nursing units. Group dynamics in the nursing units and the characteristics of organizational behavior were mediating variables for the organizational effectiveness of the nursing units, and affect directly and indirectly on the individual outcome and group outcome to the great extends. Conclusion : Therefore, nursing managers ought to develop career ladder program and based job enrichment program in order to improve the organizational effectiveness of the nursing units. Additionally, programs to improve organizational effectiveness via improve group dynamics and characteristics of the organizational behaviors should be developed.

• Journal of the Korean School Mathematics Society
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• v.16 no.1
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• pp.201-217
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• 2013

This study intends to develop and apply elementary mathematics program for gifted students based on a 'constant width shape' in order to keep pace with the STEAM education which is becoming the main issue and therefore, it set up research subject as follows; To introduce constant width shapes through 'a circle' which is a constant width shape under present education process and based on this, to search a theory about constant width shapes and reuleaux triangles. To arrange an elementary mathematics program for gifted students according to the part 3 enrichment study model of Renzulli. To revise supplement the program on the basis of field application result twice and then to materialize the program. It is expected that the developed program and study data will suggest mathematical ideas and direction of materials development in education sites of elementary mathematics program for gifted students.

• Journal of the Korean Home Economics Association
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• v.47 no.6
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• pp.121-133
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• 2009

The purpose of this study was to assess the efficacy of Feuerstein's program on Gifted children's executive function. The subjects for this study were 40 Gifted children (3th year elementary students) from KAGE. Twenty were randomly allocated to the experiment group and the other 20 to the control group. The results of this study were as follows: The experiment group exhibited statistically significant improvement in attention control, cognitive flexibility and information process procedure compared to the control group. The results proved that FIE program had an effect on improvement of executive functions in gifted children.

• Journal of Korean Elementary Science Education
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• v.23 no.4
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• pp.279-286
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• 2004

The purpose of this study is to develop and apply effective teaching strategies and program for the gifted-in-science. The teaching material for the gifted students was focussed on microscope. This study consists of three steps according to the enrichment triad model of Renzulli. Firstly, the gifted students investigate and express themselves for theological backgrounds, for examples, kinds, structure and use in various ways of microscope. It is to provide basic data for the effective ideas and interest which help students have the appropriate microscopic conceptions. In the second step, it contains understanding of a term and function of microscope, making of simple microscope, principle of a statue focusing and size estimation of an outline of subjects by scientific investigation activity. Lastly, it focussed on enlargement of post-learning through investigation of relationship with inter-science and experiments using microscope. Therefore, it was concluded that this study may help teachers reconsider scientific program development for the gifted or enriched students and to be successful in the teaching-learning processes.

• Journal of the Korean Society of Clothing and Textiles
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• v.36 no.11
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• pp.1208-1221
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• 2012

This study was conducted with the budgetary support of the Gyeonggi Provincial Government Department of Education as curriculum preparation (frequently revised since 2007) for the enhancement of teacher professionalism in Clothing, Food, and Housing Life education. This study promotes changes in student learning through the enrichment of Home Economics content and the classroom-learning environment through the reinforcement of teacher professionalism and attitudes towards Clothing, Food, and Housing Life education. This study enhances the comprehension of Home Economics and understanding by educators on the importance of Home Economics. The training program was evaluated through an analysis of the motive of application, level of satisfaction with the program, change in the view of Clothing Life education, and level of expectation and contributions of the program towards the curriculum development of teaching. The trainees were motivated by the opportunity to practice, uniqueness of the curriculum of the training program, and expectations for professional enhancement. The level of satisfaction is very high. Regardless of subjects, trainees recognized the necessity of practical exercise, cultural & artistic approach, and integrated teacher training in Clothing Life education. The teachers of other subjects recognized the importance of Home Economics and the historical background of Clothing, Food, and Housing Life.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1998.06a
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• pp.552-555
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• 1998

In dealing with representing knowledge under uncertainty there is a sustain tendency to increase flexibility in order to avoid problems of inconsistency in the knowledge. Many knowledge systems(information retrieval systems, expert system) include hybrid representation models. Funny retrieval systems appear as a complement or as an enrichment of this models. In this paper, we describe dynamic rule modification through situation assessment for uncertainty management.

• Research in Mathematical Education
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• v.8 no.3
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• pp.175-182
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• 2004

The design of learning environments which encourage students to work in a creative manner on mathematical problems is a creative process in itself. The concept of the Saturday University program is described in which pre-service teachers are guided at teaching students in extra-curriculum activities on interdisciplinary topics. In the process of the didactical reconstruction of mathematical problems, the pre-service teachers go through the stages of a revolving door model y.

• Journal of Families and Better Life
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• v.12 no.2
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• pp.205-218
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• 1994

본 논문의 연구 목적은 한 가족의 중심체계인 부부 체계의 건전함과 잠재력을 지원하여 부부관계의 향상을 도모하고, 나아가 전체 가족관계를 건강하게 유지.발달시키기 위한 방법의 하나로서 한국부부에 적합한 가족생활교육으로서의 부부관계 향상프로그램을 개발하 는데 있다. 본 연구에서는 한국과 미국에서 실시하고 있는 가족생활교육 프로그램 및 부부관계향상 프로그램 자료를 근거로 프로그램의 이론적 체계를 마련하고자 노력하였다. 그 구체적인 내용은 1) 선행의 가족생활교육 프로그램 및 부부교육 프로그램에 관한 분석 평가를 근거로 한국 부부관계향상에 적합한 프로그램 모형을 제시하여, 2) 앞으로의 부부관계향상 프로그램 실시를 위한 단계적 지침 및 방향을 제시하는 것 등으로 구성되었다.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2005.11b
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• pp.156-164
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• 2005

The challenges China is facing in energy security are briefly discussed. Then, the development of nuclear power in China in the first half of 21 st century is envisioned, and it is expected that Generation-3 PWR nuclear power plants (NPPs) would be the leading units of nuclear power in the coming $30\~40$ years. As part of the nuclear power program, the R&D work on nuclear fuel cycle is generally proposed.