• Journal of The Korean Association of Information Education
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• v.18 no.3
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• pp.401-412
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• 2014

The main purpose of this research is to develop and apply an evaluation tool of serious games for science learning. To develop the evaluation tool, probing references and analyzing previously generated evaluation tools and softwares were carried out. After that, 17 experts in elementary science education appraised serious games, 'milc & seereal', made by Gwacheon National Science Museum with the evaluation tool. The findings on the characteristics of good serious games from assessments are as follows; The learning objects of the games are coincident with national science curriculum, they strongly stimulate the students' motivation, the interfaces are neat and pretty useful for users to get informations, games are easy to maintain, inexpensive, and moral. When we develop or select serious games for science class, the strengths of good games should be considered.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.36C no.8
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• pp.62-69
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• 1999

This paper presents a vision-based real-time traffic surveillance system. Current research in machine vision applied to traffic is due to its potential for more powerful process, its flexibility and its lower cost. Our traffic surveillance system consists of FPA and TSM on the Internet. The FPA provides image data, vehicle speed and vehicle density for the TSM. Traffic parameters, the vehicle speed and density, are extracted over many frames using differences between the sampling points of a background image and those of incoming frames. The FPA works by just processing groups of pixels without any understanding of the image. Although this system has an accuracy limitation, it can be used in applications requiring an approximate vehicle density and vehicle speed in real-time.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.5 no.1 s.9
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• pp.31-43
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• 2006

As of March 2005, the standard of traffic signal controllers became effective. The standard presents specifications and functions of a traffic signal controller which collects traffic information, sends it to the traffic control center, and controls traffic signal with adequate traffic signal timing provided by the traffic control center. Since the controllers by the previous standard lack parts compatibility and have different control functions and communication protocol, the maintenance cost has been increased. Also, some important functions like conflict detection have not worked out perfectly. To overcome these disadvantages, first of all, this standard secures hardware compatibility. Conflict detection method has been enhanced. Communication protocol to the traffic control center was included in the standard. With this standard, independent maintenance system and prompt treatment of hardware malfunctions becomes possible. Also, the unified intersection traffic control method will increase traffic safety.

• Journal of Radiation Protection and Research
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• v.21 no.3
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• pp.155-166
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• 1996

All nuclear facilities and components should receive an initial ALARA review before the installation and thereafter whenever modifications are planned. A major objective in design aspects of ALARA is to identify areas where specific engineering input can reduce personnel exposure. The basic factors which should be considered in the ALARA design review process include curd control, shielding and isolation of radiation sources accessibility maintainability and reliability, and contamination control. Because many diverse aspects must be considered in the ALARA design reviews, a proper ALARA checklist should be used to aid the designer in preventing any of the ALARA review considerations from being slipped away. In order to develop the practical ALARA checklist, check items for basic ALARA factors have been prepared, and what should be considered in reviewing each item has been discussed here. Based on the proposed factors and items, an ALARA checklist was developed.

• Journal of KIISE:Information Networking
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• v.31 no.4
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• pp.384-392
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• 2004

Mobile contents service providers have some difficulties to timely and proper service deployment due to rapid development cycle of diverse portable devices with different capabilities. A way to resolve the problem is to introduce a mobile contents service paltform that can adapt original mobile contents to diverse devices dynamically and automatically. In this paper, we propose a mobile contents service platform based on active network mechanisms, called Mobile Content Adaptation Network(MobiCAN). The MobiCAN node provides effective service deployment, execution, and maintenance features and accommodates service layering and service customization capabilities for easy deployment. The basic functional units of the MobiCAN node are micro services with well-defined service interfaces and service layering features. For reliable services among the MobiCAN nodes, we design new distributed and robust Overlay Management Protocols(OMPs). As an example of practical MobiCAN applications, we finally describe Dynamic Contents Customization Proxy(DCCP) service.

• Geotechnical Engineering
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• v.14 no.3
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• pp.123-134
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• 1998

To analyse the stability of a slope composed of waste material produced in a closed lead mine, numerical modeling has been carried out in two dimension using FLAC, finite difference program. The research was focused on the effect of the earthquake as well as a rise of water table upon slope stability. The numerical results have shown that the slope would not be safe against earthquake event and that the increase of pore pressure due to a rise of water table up to the ground level may result in a failure of the slope. On the basis of numerical analyses and site investigation, two sorts of measures have been taken. In short term, removal of a part of materials deposited on the top of the pile is required to increase immediately safety factor of the slope even a little. In ling term, it is necessary to repair drainage facilities and dam which covers waste material so that the slope is prevented from failure in a radical manner. It has been confirmed by numerical analyses that an improvenment of the stability can be in a great extent expected after such measures have been performed.

• Korean Journal of Social Welfare
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• v.65 no.4
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• pp.33-59
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• 2013

This study has examined an analysis of discourses on free child care policy for 0-2 year old children in Korea. The author has searched articles in daily news papers of "free child care for 0-2years old" using Korea Integrated News Database System and Chosun archive. For the analysis, articles from March 2012 to May 2013 has been collected. From this study, it has been suggested that discourses has been showed with diverse issues such as home care allowance, working mom vs full-time housewives, universal welfare vs selective welfare. These discourses has developed with the ideologies of conservative and progressive perspectives. The suggestions of this study will contribute to the development and practice of a free child care policy for 0-2 year children through reflective discourse analysis.

• Explosives and Blasting
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• v.28 no.2
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• pp.76-85
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• 2010

In this paper, we present the result of an analytical investigation concerning the demolition range for the pre-weakening of load-bearing wall in explosive demolition. Pre-weakening of load-bearing wall is usually conducted based on field experience because reliable specifications or guidelines for the design of pre-weakening have not yet been established in Korea. This study is one of the efforts to develop such a reliable specification or guideline for the pre-weakening process. Hence, the focus of the study is on the estimation of pre-weakening range of load-bearing wall. For the purpose, a finite element analysis (FE analysis) was conducted, and a pre-weakening range of load-bearing wall was suggested based on the analysis result.

• Journal of Korea Water Resources Association
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• v.30 no.6
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• pp.679-690
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• 1997

The risk assessment model for hydrlolgic safety analysis of dam and levee in developed by using Monte-Carlo and AFOSM (Advanced First-Order Second-Moment) method. The fault tree analysis and four phases approach are presented for the safety eveluation of risk of dam and levee. The risk model consists of rainfall-runoff analysis, reservoir routing and channel routing considering the variations in the model parameter. For the rainfall-runoff analysis, KRRL method is adopted with 200-year precipitation and PMP (Probable Maximum Precipitation). Reservoir routing is performed by fourth order Runge-Kutta method and channel routing by standard step method. The suggested model will contribute to safety evaluation of dam and levee and their rehabilitation decision problem.

• Journal of Korean Medical classics
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• v.22 no.2
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• pp.23-34
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• 2009

형상(形相) 망진(望診)에 대한 국제공동연구와 해외진출을 위한 준비과정으로 중의사(中醫師)를 대상으로 수요조사를 실행하였다. 참여자의 학문적인 경향성은 전통 한의학적인 보수 경향성보다는 현대의학을 실용적으로 활용하는 태도를 보였으며, 임상에서 활용도가 높은 병증체계는 장부병증과 팔강병증의 순이었다. 한방 진단법에서 중요하게 활용하는 방법은 문진(問診)이며, 망진(望診), 문진(聞診), 맥진(脈診), 복진(腹診) 등의 방법도 고른 분포도를 보였으며, 그 이유는 진단 효율성, 환자와의 상담, 치료효과 입증, 환자 정보 공유, 진단 결과의 재현성과 진단의 표준화 객관성 등으로 고르게 나타났다. 한약과 침구의 활용에 대한 진단기법의 일관성은 비교적 동일하거나 보통으로 나타났으며, 그 이유로는 한약과 침구의 변증행위가 동일한 체계를 활용하거나, 소속 학파의 이론을 한약과 침구에 활용하는 것으로 보인다. 망진 형상진단의 중요도와 활용도는 고르게 나타났으며, 망진에서 중요하게 활용하는 부위와 내용으로는 두면의 생김새, 신체 전반적 생김새, 신체 특징부위로 나타났다. 형상진단의 기전과 표준화 연구에 가장 적합한 연구방법론으로는 형상진단에 입각한 고전 문헌연구, 전문가의 형상분석에 대한 통계처리, 병증과 형상에 대한 임상데이터 구축 등이었다. 형상진단기에 대해 요구하는 기능은 형상유형감별, 오장육부 상태 진단, 표리한열 진단, 경락기운 진단 등으로 나타났으며, 형상진단기의 임상적인 활용도를 높일 수 있는 임상분야는 심혈관 질환, 뇌혈관 질환, 소화기 질환, 대사증후군 질환, 부인과 질환, 노인성 질환 등으로 고른 분포를 보였다.