• Title/Summary/Keyword: 집단선택

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A Suggestion of a Model of Needs Analysis By Using Max-Min (Max-Min을 이용한 요구분석 모형 제안)

  • Nam, Bo-Yeol
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.5
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    • pp.2030-2037
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    • 2012
  • The purpose of this research is to suggest a model or method of needs analysis for designing syllabuses. As the learner-centered approach in teaching and learning methods becomes general, the learners' needs or wants should be reflected on the syllabus design. However, standardized scores in the previous research have disadvantages to be distorted in data interpretations because the difference between the maximum value and minimum value is so big compared to the Likert 5 scales. To solve this disadvantage, the Max-Min method is used in the needs analysis for the syllabus design. So, the differences are presented. Needs analyses need to be selected variously according to situations. Thus, further researches are needed to develop several new methods as well as the Max-Min method or the standardized score method for the whole needs analyses.

Gifted Students' Differentiated Experiences in Science Classes (영재학생들의 과학 수업에서의 세분화 경험)

  • Park, Min-Jung;Jeon, Dong-Ryul
    • Journal of Gifted/Talented Education
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    • v.21 no.2
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    • pp.531-546
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    • 2011
  • In order to investigate the differentiation for gifted students, we studied the present condition of differentiation applied in science classes at regular schools, private educational institutes, and gifted education centers. A questionnaire regarding differential instruction was administered to 90 eighth graders enrolled in university- based gifted centers in Seoul. The results of chi-square testing based on the questions and educational institutions showed that students used only a textbook at regular schools and several workbooks at private educational institutes, while students could use various specialty publications at gifted education centers. Students frequently took post-test at regular schools and private education institutes. Further, at regular schools and private education institutes, students who completed curricular activities early spent their time performing unrelated tasks or reviewing the lessons or solving problems. Gifted students tend to develop their interests by themselves through science classes at regular schools. However, efforts to group students according to their interests were predominant at the gifted education centers. The response rate for students' choice of curricular activities and teachers' preparation for advanced learners were the lowest in all questions.

Analysis on Daily Routine Types Based on Daily Care Plans of Child Care Centers and the Characteristics of Child Care Programs According to Daily Routine Types (일일보육계획안에 따른 일과유형 분류 및 일과유형별 보육프로그램의 특성)

  • Park, Chan Hwa;Rha, Jong Hay;Kwon, Yeonhee;Choi, Mock Wha
    • Journal of the Korean Home Economics Association
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    • v.51 no.1
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    • pp.45-57
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    • 2013
  • This study explores the types of daily routines in child care centers based on the time planned for indoor free choice activities, outdoor activities, group activities and nap/rest. The daily routine plans of 63 classes of 0 to 2-year-olds and 51 classes of 3 to 5-year-olds were cluster analyzed. Also, openness and closeness of child care programs as well as the most participated indoor/outdoor activities were examined using questionnaires developed for teachers. The results were as follows: First, teachers planned the most time for free play choice activity and comparatively less time for outdoor play during the day. Time for rest and naps were planned more for 0-2 year-olds whereas group activities were planned more for the 3-5 year-olds. Second, 3 daily routine types were found in the daily plans of child care centers, such as "Low-Activity Oriented," "Free Choice Activity Oriented" and "Group Activity Oriented" in 0 to 2-year-old classes and 3 to 5-year-old classes. Also, "Group Activity Oriented" type in 0 to 2-year-old classes showed more "closed" child care programs than the "Free Choice Activity Oriented" type. However, no difference was shown among the 3 types of daily routines in the openness and closeness of 3 to 5-year-old child care programs. Finally, all children, regardless of the types of daily routine, participated most in block activity and role play indoors and fixed-play equipment, sand play and free play outdoors.

Structures and Characteristics of Movie Consumption Media (영화 소비 창구의 구조와 특성)

  • Chon, Bum-Soo
    • Korean journal of communication and information
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    • v.40
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    • pp.221-248
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    • 2007
  • This study examines structures and characteristics of movie consumption media. Using survey data, this research focused on combinations of movie platforms including theater, video, DVD, terrestrial television, cable television and the Internet. The results indicated that there were forty eight combinations in accessing theatrical movies. The market share of theaters was approximately 33.5%. However, this has increased to 64.50% in case of integrating other movie consumption media. The results of Chi-Square analysis showed that although the older movie-goers prefer to theaters, the youngers like to access other movie media. In addition, many movie-goers tended to replicate their viewing at the theater.

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기지상 물질과의 결합특성이 금속입자의 성장 및 표면 플라즈몬 공진 특성에 미치는 영향

  • Kim, Yun-Ji;Lee, In-Gyu;Kim, Won-Mok;Lee, Gyeong-Seok
    • Proceedings of the Korean Vacuum Society Conference
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    • 2011.02a
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    • pp.426-426
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    • 2011
  • 최근 들어 금속물질을 나노미터 단위로 구성할 수 있는 기술이 진보하면서, 금속 나노입자에 의해 발생되는 표면 플라즈몬에 대해서도 다양한 분야의 관심이 집중되고 있다. 유전체 물질을 기지상으로 하는 금속:유전체 나노복합체에서 금속 나노입자는 자유전자들의 집단 진동인 국소표면 플라즈몬 공진(Localized Surface Plasmon Resonance, LSPR)현상에 의해 국부전기장을 증대 시키고, 가시광 및 적외선 영역에서 특성 광흡수 거동을 보인다. 이와 같은 광학적 특성은 금속 나노입자들의 크기, 형태, 그리고 나노입자들의 주변을 구성하는 기지상 물질의 종류에 의해 조절된다. 금속:유전체 나노복합체에 나타나는 이러한 특성은 단순장식코팅 뿐만 아니라 광의 효율적 운용과 광을 매개로 한 기능발현을 필요로 하는 디스플레이, 광학 스위칭 소재 및 태양전지의 효율 향상을 위한 광흡수층 등 매우 다양한 응용이 가능하다. 본 연구에서는 다양한 굴절률을 갖는 재료들 중, 저굴절률을 갖는 SiO2와 고굴절률을 갖는 ZnS-SiO2를 기지상 재료로 선택하여 교번증착 스퍼터링법으로 Ag와 Au입자를 형성시켰다. Ag를 금속나노입자로 갖고, SiO2와 ZnS-SiO2를 기지상으로 하는 금속:유전체 나노복합체에서는 금속나노입자 형성에 따른 뚜렷한 표면 플라즈몬 공진 광흡수 피크가 관찰된 반면 Au나노입자는 기지상에 따라 각기 다른 광흡수 특성을 나타냈는데, SiO2기지상에서 명확한 광흡수 피크를 형성했던 경우와는 달리 ZnS-SiO2기지상에서는 특정파장에서의 흡수피크로 규정되기 어려운 넓은 파장범위에 걸친 완만한 광흡수 피크를 나타냈다. TEM 분석을 통해, ZnS-SiO2 기지상 내의 Au입자는 각각 독립되어 있는 Island형태가 아닌 유전체 기지상과 대칭적으로 혼합된 네트워크 형태의 Bruggeman 기하구조를 구성하고 있음을 확인하였고, 이는 Au입자가 형성되고 성장할 때 Au와 S의 높은 결합에너지로 인해 상당한 젖음 특성을 갖고 성장하였기 때문으로 판단됐다. 따라서 나노복합체를 구성하는 물질간의 광학적 특성뿐만 아니라 기지상 내에서의 금속입자의 성장거동에 대한 연구가 수반되었을 때, 금속:유전체 나노복합체의 표면 플라즈몬 공진 광흡수 특성을 보다 정확하게 제어할 수 있다.

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The Types of Infant Care Curricula Based on Analysis of Infants Care Plans (영아반 보육계획안 분석에 따른 프로그램 유형)

  • Choi, Mock-Wha;Lee, Mi-Young;Rha, Jong-Hay
    • Korean Journal of Human Ecology
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    • v.20 no.5
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    • pp.897-915
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    • 2011
  • The purpose of this study was to investigate the actual conditions and characteristics of weekly and daily child care programs for infants, to provide a basis for the improvement of infant care quality. Weekly and daily curricula of 18 classes for one and two-year-olds classes (9 for each ages) from childcare centers in D city were collected from Nov. 2009 to February 2010. The results are as following: first, classes for one-year-olds plan 6-25 activities and classes for two-year-olds plan 12-30 activities weekly, with differences in the number of weekly activities according to the childcare centers. The number of weekly activities should be planned considering infants' interest as well as educational continuity of the activities. Second, the investigation of daily activities showed that the routine activities planned for one-year-olds were for total of 310-600 minutes and for two-year-olds 310-540 minutes. Among these, on average of 66% of the time was planned for everyday life such as eating and napping. The rest of time was dedicated to indoor and outdoor free play. However a few centers allocated more time for group activities according to subjects compared to free play. A curriculum composed of group activities ignoring infants' individual developmental differences should not be encouraged. Last, the results of cluster analyses on weekly and daily curricula in terms of the number of activities and time, duration, number of group activities and time showed that curricula for infants could be characterized into two types: "free play" and "group activity" curricula.

The Structure of Taste Repertoires for Cultural Arts (문화예술 취향 레퍼토리 구조 연구)

  • Chon, Bum-Soo
    • The Journal of the Korea Contents Association
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    • v.12 no.6
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    • pp.201-210
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    • 2012
  • This study examines the structure of taste repertoires for cultural arts. The major results are as follows: firstly, the numbers of taste repertoires were 1.66 for type 1 and 4.27 for type 2. More specifically, respondents tended to have movie taste. Secondly, there were socio-demographic differences for taste repertoires for cultural arts. In other words. female respondents to have more taste repertoires than that of male respondents. Also, younger respondents to have more taste repertoires than that of older respondent. Thirdly, blog users tended to have more taste repertoires than that of non-users. It can be argued that blog use may be a determinant of the number of taste repertoires for cultural arts. In addition, although the number of taste repertoires type 1 was determined by tastes for theatre, movie, popular music, musical and photo, the number of taste repertoires type 2 was determined by tastes for theatre, movie, musical and classic contents.

An Analysis of the Effect of Government Support on Automation and Smart Factory (자동화 및 스마트 공장 구축에 대한 정부 지원사업의 효과 분석)

  • Kang, Jung-Seok;Cho, Keun-Tae
    • Journal of Korea Technology Innovation Society
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    • v.21 no.2
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    • pp.738-766
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    • 2018
  • The purpose of this paper is to figures out the impact on the business performance based on the case studies about the establishment of automated smart factories supported by the government. In this study, the effectiveness of supporting business is verified by comparing supported company with non-supported ones using methods such as T-test and ANOVA. The PSM method was used to solve the selection bias issue between the experimental group and the controlled group. The research results have shown that the effect of the supporting business to the automated system was tenuous, and the amount of sales and research and development costs was increased after a certain schedule passed in case of the supporting project to the smart factory. There is some time lag to appear the effect of the government supporting businesses and the supporting business to the automated system leads to long term sales increase by increasing parameters like research and development costs rather than direct influence. Therefore, this research will be useful information for the process of establishing useful basic data and policies which helps to secure new budget Government Supporting Businesses and find ways improve the business.

Consumer-Agent Based Sensitivity Analysis of Product Diffusion Dynamics for Domestic Automobile Market (국내 자동차 시장에서 소비자 에이전트 모형 기반의 제품 확산 다이나믹스 민감도 분석)

  • Kim, Shin-Tae;Kim, Chang-Ouk
    • Journal of the Korea Society for Simulation
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    • v.20 no.2
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    • pp.29-40
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    • 2011
  • This paper focuses on the sensitivity analysis for the calibration of an agent-based simulation that analyzes the brand-level diffusion dynamics of competing products in the domestic premium mid-sized car market. In this paper, we employ a consumer-agent model that imitates the purchasing characteristics and behaviors of the consumers. The group of consumer agents that are socially interconnected represents a virtual market. By spreading the product information from previous adopters to potential consumer agents in the virtual market, the word-of-mouth phenomenon emerges like in the real market. The phenomenon influences the product choice of potential consumer agents that causes the variation of the product diffusion dynamics. In this simulation model, it is important to calibrate the virtual market parameters(e.g., ratio of innovators, social network structure, purchase time decision method) so that the virtual market can simulate the real market. However, it is difficult to measure these parameters directly from the real market. In this paper, we analyze the diffusion dynamics of simulations under various conditions in comparison with real sales data to calibrate the parameters.

An Analysis of Social Discursive Space: Critique of New Liberal and New Conservative Discourses (사회적 담론공간 분석: 신자유주의, 신보수주의 담론을 중심으로)

  • Kim, Ye-Ran
    • Korean journal of communication and information
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    • v.18
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    • pp.7-36
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    • 2002
  • This study is concerned with analysing complexity, flexibility and dynamism of social discoursive space. The developmental process of social discourse is analogous to that of a spatial structure of social discourse. Post-capitalist society has seen New-Liberalism and New-Conservatism have become dominant, resulting in the deterioration of the cultural politics of citizenship. It is argued that the position of otherness, in which those binary structures (inside/outside or centre/margin) collide and collapse, is where subversive discourse can emerge to dominant discursive power. Furthermore, it is necessary to democratize social discursive space, through which the Other becomes able to. participate in the social production, distribution and consumption of social discourse.

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