• The Journal of Sustainable Design and Educational Environment Research
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• v.19 no.3
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• pp.1-10
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• 2020

The results of a survey on 113 elementary schools in Jeju-do in December 2018 are as follows: First, the most newly established schools in the last 30 years were long-term decline Type 3 (56 schools), followed by Type 9 (W-type, 24 schools), which was more than 30 years old. Second, one of the main achievements of this study is the discovery of four types (type 1, type 2, type 8 and new-type) that are well characterized by Jeju province. Third, the most smaller school has 50 schools (44.3%) and small schools (less than 300 students) are 77 schools, accounting for 68.1% of the total ; 6 the most largest elementary schools (5.3%), 13 large schools (11.5%), 17 optimal sized schools (15.0%), 27 small schools (23.9%). In particular, it is not an exaggeration to say that almost all schools are small schools except for a few schools in Jejudo Ub-Myun areas. This means that it may cause serious problems if it is adopted as a standard of abolition of small schools in the same standard of management rather than reflecting regional characteristics of Jejudo province.

• Journal of Korean Society of Forest Science
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• v.99 no.1
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• pp.111-124
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• 2010

This study has intended to develop an evaluation model to select suitable locations of recreation forests in accordance with their types, and to apply the models to the feasibility study of selecting suitable recreation forest locations of candidate sites. To reach this goal, this study employed a Delphi expert survey method and Analytic Hierarchy Process (AHP) for the whole process of model building. And the followings are what this study has found during model building and application process. First, the assessment criteria for classifying recreation forests and selecting suitable locations were initially identified through justification process with two rounds of expert review, after broken down into 2 categories, and then further divided into 6 items and 12 indicators accompanying with hierarchical structure. Second, in the third phase of Delphi expert survey, the relative weights of the assessment criteria were derived by employing AHP. Through overlaying two evaluation categories including resource and usability, 4 types of recreation forest were presented. In the forth phase of the Delphi survey, this study has developed an evaluation model to select suitable locations of recreation forests in accordance with their types using relative weights of the selected indicators through. This study has applied the models to the feasibility study of selecting suitable recreation forest locations of candidate sites, and found that the usability of recreation forest was severely affected by the distance from the capital region, that the closer the locations of natural recreation forests from the capital region, the more advantageous. The developed model can be used to designate recreation forests in accordance with their types.

• Journal of the Korean Chemical Society
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• v.45 no.6
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• pp.513-519
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• 2001

An optical semi-automatic titrator was constructed employing the technique of the reflectance spectrometry and was tested for the determination of the end points of the acid-base, precipitation, and EDTA titrations. And since the current optical semi-automatic titrator built on the principle of the reflectance spectrometry could be successfully used even for the determination of the end point in the precipitation titration where the solid particles are formed during the titration process, it was found to be feasible that a completely automated optical titrator would be designed and built based on the current findings.

• Annual Conference on Human and Language Technology
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• 2023.10a
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• pp.95-100
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• 2023

끊임없이 재생산되는 혐오 표현의 정확한 탐지를 위해서는 혐오란 무엇인가에 대한 본질적인 이해가 필요하다. 본 연구에서는 화용론에서 사용되는 적정성 조건이라는 분석 틀을 활용하여 모델이 '혐오하기' 화행을 어떻게 인식하고 있는지 평가하고자 했다. 혐오 화행의 적정성 조건을 명제 내용 조건, 예비 조건, 성실성 조건, 본질 조건으로 나누어 분석하였으며, 이를 진위형, 연결형, 단답형, 논술형 문항으로 구성했다. 그 결과 모든 문항 유형에서 50점이 넘는 점수를 받았으나 비교적 고차원인 사고 능력을 측정하는 단답형과 논술형 문항 유형의 점수가 가장 낮게 나타났다.

• Journal of the Korean Professional Engineers Association
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• v.27 no.6
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• pp.21-32
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• 1994

• The Journal of Korean Association of Computer Education
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• v.11 no.5
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• pp.47-55
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• 2008

The Internet is one of the most infrastructure for information technology in school education. Providing the Internet with a proper bandwidth is an important element for efficient school education for information technology, especially because several instructional models based on new Internet technologies are under development. To support these instructional models, it is important for the schools to provide the proper Internet bandwidth wherever necessary. In this paper, the amount and pattern of internet usage in school were analyzed. Based on this analysis, we propose how to figure out a proper bandwidth for a different ladder of schools.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.589-595
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• 2017

We present an estimation model for optimal channel capacity required to data traffic transmission. The optimal channel capacity should be calculated in order to satisfy the permitted transmission delay of each wireless data services. Considering the discrete-time operation of digital communication systems and batch arrival of packet-switched traffic for various wireless services, $Geo^x$/G/1 non-preemptive priority queueing model is analyzed. Based on the heuristic interpretation of the mean waiting time, the mean waiting times of various data packets which have the service priority. Using the mean waiting times of service classes, we propose the procedure of determining the optimal channel capacity to satisfy the quality of service requirement of the mean delay of wireless services. We look forward to applying our results to improvement in wireless data services and economic operation of the network facilities.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.197-202
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• 2017

In this study, the current status of the South Korean performance facilities was analyzed, and then the key tasks for the improvement of such facilities were identified. The study results show that the country's performance facilities are disproportionately concentrated in the Seoul region whereas the lack of performance facilities per unit area in the other regional provinces considerably lowers the accessibility of such facilities to the local residents. As part of the measures to solve such problems, this study proposed the development of a system that would enable the optimal placement of such performance facilities. It also proposed the development of another system that can simulate and suggest an optimal performance type for a given region because the ultimate goal of this study was to raise the utilization rate and financial self-reliance of the performance facilities in South Korea.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.10a
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• pp.140-141
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• 2016

Dynamic nature and diverse requirements on construction sites make the automation technology harder to be employed actively. In this study, we analyzed optimal type of automation system and importance of core technologies for developing efficient construction automation system on 11 construction operations. As a result, it showed that man-machine cooperation system may be the most suitable for most operations, while autonomous robot will be best suited in hard working environment such as maintenance of exterior wall. In elemental technology, ease and accuracy of control and operation showed higher priority than others regardless of automation system type. These findings will provide useful information for developing the construction automation system.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2001.05a
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• pp.149-152
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• 2001

Goals of this study are to analyze various types of facility disposition which is brought out in the facility space plan of the modernized elementary school which has been founded and conducted by Seoul city, and most of all, to grasp the space propriety through understanding the peculiarity of the plan by the space analysis form. To proceed this study, I will divide it to three steps; 1. First step : Research into the space alternation of an (Korean) elementary school which has been gotten changed by the alternation of an elementary school. 2. Second step : Research into the efficient studying-space of a modernized elementary school by contemplating analysis of cases which comes from the literature research, collecting related data, and making an on-the-spot survey