• Proceedings of the Korea Society for Simulation Conference
• /
• 1999.10a
• /
• pp.254-262
• /
• 1999

실시간 시뮬레이션에서 주어지는 다양한 종류의 불연속적인 파라미터 값을 가지는 데이터 테이블에서 실시간의 제약 하에서의 검색을 수행하기 위해서는 최적의 기법이 요구된다. 실시간의 제약 하에서 최적 기법의 기준이 되는 것은 보통의 알고리즘들과는 달리 평균 속도가 아니라 worst case에서의 속도가 된다. 검색 알고리즘 들은 iteration을 거치게 되므로 총 탐색에 걸리는 시간은 iteration의 수(logical speed)와 1 probe를 수행하는 데 걸리는 시간(실제 수행속도)의 곱으로 정의된다. 본 연구에서 총 탐색에 걸리는 시간을 이론적으로 계산한 검색 속도 기존의 수행한 수치비교시험의 결과와 대체로 일치하였고, 이분 검색법이 iteration의 수와 실제 수행시간 모두에 있어서 가장 우수하다. 한편, 검색하고자 하는 파라미터 값의 dynamics를 이용하여 주어진 데이터 테이블 내의 검색 영역을 축소시키는 dynamic-window 개념을 도입하여 검색 알고리즘의 속도를 향상시킬 수 있었다. 이 개념의 도입은 데이터 테이블의 형태에 민감한 보간 검색법(interpolation method)과 그 응용 기법들에 대해 탁월한 효과를 나타내었다. 결론적으로 일반적 데이터 테이블에 있어서는 이분 검색법이 logical speed와 실제 수행속도가 우수하고, dynamic-window 개념을 도입한 보간 검색법과 그 변형들은 logical speed가 탁월하게 향상된다.

• Korean Journal of Social Welfare Studies
• /
• v.49 no.1
• /
• pp.163-190
• /
• 2018

The citizen-initiative has been frequently mentioned in community building project which is being promoted by Seoul City. The citizen-initiative has become an important concept in the direction of community welfare efforts. However, this concept has not been defined clearly in social welfare. In this context, the purpose of this study is to find how the practitioners of the social welfare practice field recognize the concept of citizen-initiative. In this study, concept mapping method was used to generate 59 statements about the citizeninitiative in 10 social workers in Seoul. Multidimensional scaling analysis and hierarchical cluster analysis are used to do mapping and grouping the 59 statements. The results are as follows. A total of 6 categories were derived. The six categories are named "Inducement of Participation", "Practice", "Procedure", "Awareness and Interest extension", "Expression of Opinion", "Attitude and Emotion". "Practice" category was revealed as a core category in the concept of citizen-initiative. This study is meaningful as a first step to discuss "what is the citizen-initiative?" and to make consensus in social welfare academic area and practice field.

• Journal of Science Education
• /
• v.36 no.1
• /
• pp.84-93
• /
• 2012

We have studied possibilities of Peer Instruction(PI) to train in-service science teachers in elementary and middle schools through both degree of conceptual changes and investigating responses to questionaries. 169 teachers were attended and the subject for training was about light propagation to teach scientific conception about a pin hole camera. 6 conceptests were developed. Degree of conceptual changes was analyzed from results obtained from 24 elementary and 32 middle school teachers among them. On the other hand, answers to questionaries were obtained from 135. Relatively high gain near to about 0.7 in conceptual changes was obtained even though their initial levels were quite low. Interesting point is that elementary teachers have higher initial level and larger gain than middle school teachers. Teachers have very much enjoyed and showed strong support to PI for helping conceptual change, and willing to use PI to their own class. Also they conceived dealing concept in teacher training is very important and evaluated PI very positively for teacher training.

• Journal of Legislation Research
• /
• no.41
• /
• pp.43-85
• /
• 2011

Child and youth welfare law in Korea is vague and complex. In a narrow sense it means the research on the provisions of the Child Welfare Act. In a broad sense it embraces all of the social welfare system regarding to the protection for children and youth. Regardless of the scope of child and youth welfare law it should be cleared what the term of child and youth means in Korean legal regulation. Historically, child protection in Korea was based on the good intentions of individuals to protect war orphan children from poverty or danger after the end of the Korean War. It is the story of the evolving status of children from being viewed as dependant of the parents to becoming rights-based citizens, even not in Constitution. In Korea neither parents nor children have constitutionally recognized right. According to Korean Constitution the parents have only the obligation to educate their children. And the state ist obliged to improve the welfare of the youth(section 34). In compliance with this article there are lots of statutes regulating youth welfare. This article reviews the legal definition of child and youth to test the uncertain definition of child and youth welfare in relation to the treatment of children's and youth's legal status in Korea. According to the Child Welfare Act child is the person under age of 18, while the legal definition of youth oscillates between the person under the age of 19 and the person over the age 9 to the age of 23. As a result child welfare is often used as the synonym of youth welfare, and vice versa. The lack of the arrangement of the legal definition of child and youth is based on the historical reasons that the legal definitions of youth (under the age of 19 or over the age 9 to the age of 23) newly appeared in the statutes regulating youth welfare, whereas the Child Welfare Act still maintained the definition of child under the age of 18. In order to get rid of the confusion of the definition of the child and youth, a part of certain statues should combine with another Act according to the purpose of the individual amended statutes. And the definition of child and youth should be subdivided into 3 or 4 classes, namely infant(0-6), child(7-13), youth(14-18) and young adult(19-26). Furthermore this article proposes a reform of the existing legal system pursuant to the nature of the law, i.g. whether the issued or amended Act takes on a selective(residual) or universal character.

• The Journal of the Korea Contents Association
• /
• v.22 no.6
• /
• pp.557-566
• /
• 2022

The purpose of this study is to understand the correlation between Master Jin Bodhi and practicing Medicine Buddha, and to examine the concept and value of the method of asceticism related to practicing Medicine Buddha. Accordingly, as a result of collecting and analyzing a wide range of literature data on Master Jin Bodhi, Master Jin Bodhi was able to capture and present various historical sources of using various method of asceticism based on practicing Medicine Buddha. In addition, the concept and value of the method of asceticism about The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua were considered and presented as representative practices among the various practices taught to modern people in physical and mental weaknesses across the world. This study is of academic significance in that it clearly distinguishes the concepts and unique values of each of the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua based on the results of the correlation between Master Jin Bodhi and practicing Medicine Buddha. Nevertheless, this study did not fully reveal the historical causality of the process of expanding Master Jin Bodhi's method of asceticism related to practicing Medicine Buddha, and has limitations in not considering the concept and value of the method of asceticism other than the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua. Specific methods for further research were suggested.

• Journal of Gifted/Talented Education
• /
• v.21 no.1
• /
• pp.107-122
• /
• 2011

The purpose of this study is to explore the perception of the observation and nomination system for the identification of the gifted and to find out the importance and practice level perceived by the gifted education teachers using the concept mapping approach. For this, twelve gifted education teachers brainstormed and gathered ideas for the ideal ways of observation and nomination system and the gathered statements were solicited. Multidimensional scaling and hierarchical cluster analysis were also used. In addition, 112 gifted education teachers rated the importance of and the practice level for the suggested ideas of observation and nomination system. Results were as follows: First, 36 statements were solicited and as a result of concept mapping the suggested observation and nomination system were categorized as 'attainment of professionality', 'attainment of administrative support', 'attainment of fairness', and 'considering points for recommendation.' Second, there were significant differences between the perceived importance levels and the practice levels. Based on the results, imlications of the study were discussed in depth.

• School Mathematics
• /
• v.9 no.4
• /
• pp.507-521
• /
• 2007

The purpose of this study was to investigate the effects of memory retention of mathematical concepts in multiplication in the inquiry-based pantomime instructions. Three months later after the pre-test, a comparison was made between traditional class (TC) and class with the inquiry-based pantomime (IP) approach in terms of students retention of mathematical understandings. Results of the study indicated that the If instructions promoted effective long-term retention of knowledge. We concluded that instructional strategies that promoted active engagement in learning using life examples and drawings produced effective long-term retention of knowledge.

• Korean Journal of Social Welfare Studies
• /
• v.47 no.3
• /
• pp.85-111
• /
• 2016

This study aims to analyse major changes of Mental Health Promotion and Welfare Service Support Act(MHPWSSA) and critically discuss these changes based on the major discourses on Mental Health Act revision. For this purposes this study reviewed literatures and government reports to understand human rights discourses, welfare discourses, and prevention discourses. Secondly, the major changes of MHPWSSA were analysed and discussed based on those discourses. This study found that MHPWSSA defined the concept of people with mental disorders narrowly, tightened the involuntary admission procedures, introduced welfare service support provisions and mental health promotion provisions. But this study shows that the new legislation may well be criticised due to neglect of the concept of disability and people with psychiatric disability, involuntary admission without mental capacity assessment, neglect of the basic values and principles of self determination and independent living common in welfare of the persons with disability. And the new legislation may be criticised due to overuse of the concept of mental health promotion as encompassing promotion, prevention, treatment and rehabilitation.

• Journal of Korean Society of Environmental Engineers
• /
• v.22 no.12
• /
• pp.2239-2245
• /
• 2000

For the treatment of wastewater being discharged in large quantities as in these modern times, qualitative and quantitative concepts should be introduced in consideration of the recycling. In view of a qualitative concept, high rate aeration process is known as the most effective process up to now. However, Lee suggested UHR process showing the superiority over high rate process in treatment rate and quantity. Therefore, this study was performed to investigate the basic sphere of design and treatment quality, such as applicable $BOD_5$-loading and influent wastewater concentration of UHR process, based on Lee's suggestions1). Consequently, this process showed applicable $BOD_5$-loading of $2.2{\sim}7.0kg-BOD_5/kg-MLSS{\cdot}day$, exceeding three times or more of high rate process with maximum applicable loading of $2.25kg-BOD_5/kg-MLSS{\cdot}day$. Meanwhile, with the range of influent wastewater concentration from 200 to 450 mg/L. it showed the treatment rate from 94.7 to 97.3%, it indicated very good condition. In view of quantitative concept of treatment, UHR process is considered an epoch-making treatment process being superior to existing ones.

• 한국게임학회지
• /
• v.6 no.1
• /
• pp.55-57
• /
• 2009

멀티미디어 정보 표현에 있어서 서로 다른 미디어간의 동기화를 효과적으로 처리하는 것이 아주 중요하다. 멀티미디어 특성이 적용된 게임 개발에 있어서 각각의 시각 객체들이 시간 경과에 따라 공간 영역에서 동시에 움직여야 하므로 게임에서 필요한 멀티미디어적인 게임 요소들을 게임 운용상에 적절히 배치시키기 위해서는 게임 장면을 통한 시간과 공간 개념의 동기화가 필요하고 게임 객체 자신이 가지고 있는 시공간 특성이 논리적으로 설계되어 게임을 운용시켜야 한다. 따라서 멀티미디어 시스템에서 혼합된 형태의 미디어로 구성된 데이터의 표현을 위해서는 객체가 나타내는 상대적인 위치와 상대적인 시간을 나타내 주는 공간 합성과 시간 합성을 명시할 수 있는 정형화된 표현 연구가 요구된다. 간(刊)기존 연구들은 대부분 시간적 동기화와 공간적 동기화 각각에 대한 표현에 많이 치우쳐 있으므로 시간과 공간이 통합된 미디어들의 동기화 표현에 대한 연구가 필요하다. 시공간이 통합되지 않는 기존의 멀티미디어 표현법을 게임 개발에 적용할 때에는 게임에 사용되는 미디어 객체간의 원활한 동기화 표현이 쉽지 않다. 이러한 문제를 해결하기 위하여 게임 시나리오 스케치에서 나타난 게임 객체들의 시공간 개념이 적절히 표현될 수 있는 정형적 연구가 필요하다. 간(刊)본 논문에서는 시간 개념과 공간 개념이 통합된 형태의 시공간 동기화를 표현하기 위하여 명세 단계에서 멀티미디어 데이터가 시간 및 공간 개념을 적절히 변형하여 표현될 수 있도록 시간 및 공간 동기화가 통합된 새로운 표현법을 제안한다. 이를 위하여 게임 요소들의 시간적, 공간적 동기화를 표현하기 위한 방법을 언명으로 정의하고 시공간 관계성에 대한 확장을 제시한다. 간(刊)본 논문이 제안하는 언명 기반 멀티미디어 객체의 시공간 동기화 모델(an Assertion-based Multimedia objects Spatio-TEmporal Synchronization model : AMSTES)는 시간과 공간 모두에 적용되는 게임 객체들의 시공간 동기화 표현 방법과 이를 이용하여 실제 실행 가능한 코드 생성을 위한 시공간 공식을 제공한다.