• Title/Summary/Keyword: 토대 개념

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A Conceptual Study of the underdevelopment of the British Multinational Corporations, 1870-1914: from the perspective of the network theory (1870-1914년 영국의 초국적 기업 발전을 저해한 요인 분석: 연결망(네트워크) 이론의 개념적 적용)

  • Yang, Oh Suk;Kang, Won Taek
    • Journal of International Area Studies (JIAS)
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    • v.14 no.1
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    • pp.129-153
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    • 2010
  • The guiding research question of this paper is to discover 'why the UK could not develop a general structure in which transnational corporations were born during the end of the 19th ~ beginning of the 20th century like other countries'. In response to this question, although acknowledging its imperfections, the author would like to explore the causality in the context of 'Social Construction' which is reflected in the attributes of British society. As such, researchers are strongly recommended to take into account the actors' interests and the increased value effect of events which is driven by control power. This paper concludes that: firstly, not only was contempt for industrial capitalism prevalent in British society, the British government was unable to recognize the necessity of promoting policies for the development of transnational corporation. In addition, the increase in the clout of commercial-financial capitalists in the city of London along with the expansion of gentlemanly elites interfered with the transnationality of British companies. Secondly, the foundation of the political and economic structures in the UK experienced continuity and challenge simultaneously. Since the 1850's, the British social structure has been progressively characterized by the strengthening power of the commercial-financial elites in London, which resulted not in the transnationality of manufacturing but that of financial services. Finally, the configuration of the social network driven by the British elites consists of the actors' interests and control power in association with severance and connection. Unlike the complementarity of interests, in the initial stage, intended connection based on voluntary motivation between gentries and commercial-financial elites occurred in terms of control power. However, ultimately, the holding of power was transferred to the commercial-financial elites excluding the industrial capitalists and resulted in the reconfiguration of the social network.

Analysis of Scientific Explanations and the Affordances Constructed in Gifted Elementary Students' Science Drawings and Science Writings about Air Pressure: Pedagogical Use of Multimodal Representations (공기 압력에 대한 초등영재 학생들의 과학그리기 및 과학글쓰기에서 구성된 과학적 설명과 어포던스 분석 - 다중모드적 표상의 교육적 활용 -)

  • Chang, Jina;Park, Joonhyeong;Park, Jisun
    • Journal of Korean Elementary Science Education
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    • v.42 no.1
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    • pp.161-177
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    • 2023
  • Scientific explanation is composed of various representations such as texts, diagrams, and graphs, and each representation contributes to expanding scientific meaning by connecting similar but slightly different meanings as a 'mode'. Based on this perspective of social semiotics, we aimed to identify the characteristics of meaning formation demonstrated in students' science writing (verbal mode) and science drawing (visual mode) and to discuss the pedagogical use of multimodal representations. To that end, 18 science drawings and 18 scientific writings constructed by science-gifted elementary students on air pressure were collected. The characteristics of the drawn and written explanations were then analyzed from the affordance perspective in social semiotics. In science drawing, students showed a tendency to use the affordance of the visual mode to infer concrete changes from the particle view, such as the movement of air particles, the number of air particles, and the collision of particles. In science writing, students used the affordance of the verbal mode mainly to infer the causal relationship between the concept of air pressure and other related factors at an abstract level. Based on those results, we discuss the educational implications and provide concrete examples of how to use the unique affordances of each form to complement one another.

Deformation Characteristics of Non-liquefied, Reconstituted, Weathered Residual Soils due to the Cyclic Loading (반복재하에 의한 미액상화 재성형 풍화토의 변형 특성)

  • Choi Yeon-Su;Yune Chan-Young;Jang Eui-Ryong;Chung Choong-Ki
    • Journal of the Korean Geotechnical Society
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    • v.22 no.6
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    • pp.41-49
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    • 2006
  • This paper deals with development and dissipation of excess pore pressure induced by the cyclic load. Cyclic triaxial tests on reconstituted samples of weathered residual soils, which were widely used as construction materials in Korea, were performed. Test results showed that excess pore pressures developed under undrained condition increased with the increase of cyclic loads and confining pressures. And a new concept based on modified excess pore pressure ratio (MEPPR) was proposed for simply estimating excess pore pressures in terms of the number of cyclic load, irrespective of cyclic loads and confining pressures. Also, it was proposed that excess pore pressure ratio (EPPR) could be effectively utilized to estimate volumetric strains during dissipation which decreased as confining pressures increased. Consequently, concept and method to effectively estimate settlements under non-liquefied condition, induced by dynamic loads such as earthquake loads were evaluated based on laboratory test results for reconstituted weathered residual soils.

Feedback Analysis Technique for Tunnel Safety by Using Displacements Measured during the Tunnel Excavation (터널굴착변위를 활용한 시공중 피드백 해석기법 연구)

  • Park, Si-Hyun;Shin, Young-Suk
    • Journal of the Korean Geotechnical Society
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    • v.24 no.1
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    • pp.81-89
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    • 2008
  • The purpose of this study is to develop a new technique to quickly assess the quantitative stability of a tunnel by using measured displacement at the tunnel construction site. To achieve this purpose, in this study, a critical strain concept was introduced for the first time and applied to an assessment of a tunnel under construction. The new technique calculates numerically the strains of the surrounding ground by using displacements measured during tunnel excavation. The techniques considering the relative displacement, shotcrete, and anisotropic characteristics of ground were newly introduced after reinvestigating the existing analysis technique. In addition, an analysis module was developed based on the proposed analysis technique in this study, and the applicability of the developed module was verified. To verify the module, first of all, the calculated excavation displacements of a cylindrical tunnel by analytic method and commercial programs (Pentagon-3D, Flac-2D) were compared for the confirmation of applicability of commercial programs. Then, the calculated excavation displacements under the same initial condition, both with and without a shotcrete lining, by two commercial programs were compared. finally, we assess the load condition and material properties of in-situ ground by inputting tunnel excavation displacement, which was calculated by a commercial program, into the developed analysis module (FAST-Ver. 1.2, feedback Analysis System for Tunneling), and checked whether the assessed results conform to the originally assumed values.

Analysis of public library book loan demand according to weather conditions using machine learning (머신러닝을 활용한 기상조건에 따른 공공도서관 도서대출 수요분석)

  • Oh, Min-Ki;Kim, Keun-Wook;Shin, Se-Young;Lee, Jin-Myeong;Jang, Won-Jun
    • Journal of Digital Convergence
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    • v.20 no.3
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    • pp.41-52
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    • 2022
  • Although domestic public libraries achieved quantitative growth based on the 1st and 2nd comprehensive library development plans, there were some qualitative shortcomings, and various studies have been conducted to improve them. Most of the preceding studies have limitations in that they are limited to social and economic factors and statistical analysis. Therefore, in this study, by applying the spatiotemporal concept to quantitatively calculate the decrease in public library loan demand due to rainfall and heatwave, by clustering areas with high demand for book loan due to weather changes and areas where it is not, factors inside and outside public libraries and After the combination, changes in public library loan demand according to weather changes were analyzed. As a result of the analysis, there was a difference in the decrease due to the weather for each public library, and it was found that there were some differences depending on the characteristics and spatial location of the public library. Also, when the temperature was over 35℃, the decrease in book loan demand increased significantly. As internal factors, the number of seats, the number of books, and area were derived. As external factors, the public library access ramp, cafe, reading room, floating population in their teens, and floating population of women in their 30s/40s were analyzed as important variables. The results of this analysis are judged to contribute to the establishment of policies to promote the use of public libraries in consideration of the weather in a specific season, and also suggested limitations of the study.

A Study on functional priority of smart home service for single-person household - focusing on Perceived Attributes of Innovations - (1인 가구를 위한 스마트 홈 서비스 기능의 우선순위 연구 - 인지된 혁신 특성 요인을 중심으로 -)

  • Lim, Se Eun;Park, Seung Ho
    • Design Convergence Study
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    • v.15 no.2
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    • pp.37-52
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    • 2016
  • The purpose of this study is to suggest functional priority to increase probability to be adopted by single-person household by designating single-person household as potential early adopter of smart home service. Smart home service is spread slowly for its value. This study applied diffusion of innovations theory to solve this problem. Single-person household who has no other family member who can take care of household is chosen as potential early adopter. This study tried to find grounds of functional priorities through an online survey. The survey questionnaires were composed as following. First, representative attributes of single- person household were reviewed, then measuring questions according to the attributes were recomposed based upon preceding study. After that, concept and status of smart home service were reviewed. and smart home service functions to be measured in this study were selected through analysis based upon representative cases, then Measuring questionnaire were made were three factors which chosen by referring to preceding study about perceived attributes of innovations applied to selected functions. As a result of analyzed 62 responses, except excluded functions which has perceived any special value, set priorites with 9 functions. These functional priorities obtained from these studies will play a role as fundamental data to provide valuable service to single-person household and have a meaning as a starting point to increase rate of adoption for smart home service.

A Study on the Use of Forest Healing for Regional Economic Vitalization in Mountain Villages (산촌지역 경제 활성화를 위한 산림치유 적용방안)

  • Kim, Hyun-Jin;Seo, Jeong-Weon
    • Journal of agriculture & life science
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    • v.50 no.4
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    • pp.45-57
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    • 2016
  • The average income of forestry household was only 54.3% of urban workers's and 67.6% of farms household's income based on the data from statistics Korea in 2012. This indicates that forestry, which is a labor-intensive primary industry, has the limitation for creating added value. On the other hand, the demands for forest healing and forest experiential program have been continuously increased with new lifestyle focusing on the quality of life and increased leisure time. Therefore, it is necessary to establish comprehensive policies to increase added value except forestry to respond forest demands. The project utilizing forest healing can be on of solutions to meet forest demands. Thus, this research intends to investigate an economic revitalization plan for mountain villages with forest healing. The characteristics of forest healing facilities and contents of forest healing programs were examined through internet searching, fields surveys, and expert interviews. Total 186 concepts, 8 categories, and 24 subcategories were derived from raw data of surveys. The application process of forest healing was also provided to encourage local economy of mountain areas. This research offers application procedure of the forest healing for regional economic vitalization in Mountain Villages interviews using grounded theory by Strauss and Corbin(1988) as well as NVio11. This research contributes to prepare the base of future quantitative studies by providing strategies and suggestions for the application plans of forest healing programs. In addition, this research offers basic data for the policies to establish and manage forest healing villages.

Searching Determination Factors of Dancesports Athlete Performance (댄스스포츠선수의 경기력 결정요인 탐색)

  • Kim, Young-Mee;Seo, Soo-Jin
    • 한국체육학회지인문사회과학편
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    • v.54 no.3
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    • pp.31-43
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    • 2015
  • The purpose of this study was to find out the dance sports athlete's factor that presents performance problems and performance enhancing for competitions. To achieve purpose of study carried out open-ended question and structural inquiry of succession in the dance sports athlete of 25 people, the open-ended questions data were examined through inductive content analysis procedure, conducted preliminary investigation to 100 people. Preliminary investigation and main survey were verified to the dance sports athlete of 137 people through exploratory factor analysis, and confirmatory factor analysis was conducted. On the basis of the results, the conclusions were drawn as follows; First, hinders factors to athletic performance is discord with partner, condition, contest environment, limit of physical strength, limit of economic strength. Second, the measurement scale of dance sports athlete's performance enhancing to competition with 23 items which are consisted of 7 main factors. The determination factors of dance sports athlete performance were partnership, ability to invest, spiritual factors, training factors, ability of physical factors, the leader, environment of competition.

A Study on Dynamic Capacity Assessment of PSC Box Girder High Speed Railway Bridges Using Time Series Load (시계열하중을 이용한 PSC 박스 거더 고속철도교량의 동적성능 평가에 관한 연구)

  • Han, Sung Ho;Bang, Myung Seok;Lee, Woo Sang
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.30 no.3A
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    • pp.211-219
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    • 2010
  • The design concept of high speed railway bridges is applied to a method for increasing the stiffness of existing bridge structures considering the impact factor by a static load. Generally, the process of structural design would be relied upon an advanced foreign technology. However, the dynamic amplification factor (DAF) and dynamic capacity assessment of high speed railway bridges may be conducted essentially a detailed estimation because the resonance phenomenon is affected by the long length (380 m) and high speed (300 km/h) moving of a high speed railway (Korea Train eXpress: KTX). Therefore, this study will be examined the dynamic capacity of the typical PSC Box Girder high speed railway bridge efficiently, and offered the basic information for the reasonable structural design. For this, the static analysis is conducted considering the load line diagram of KTX based upon existing references. In addition, the KTX moving load is transformed into the time series load considering various analytical variables. The time history analysis is assessed reasonable using the transformed time series load. At that time, analytical variables for calculating the time series load are considered loading node distance, time increment and KTX velocity variation etc. The dynamic capacity of the PSC Box Girder high speed railway bridge is examined based upon the FE analysis result systematically. The structural safety is assessed quantitatively in accordance with the related regulation of the inside and outside of the country.

Development of Mathematics Listening Ability Surveys for Elementary School Students (초등학생의 수학 청해력 측정 도구 개발 연구)

  • Kim, Rina
    • Communications of Mathematical Education
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    • v.37 no.1
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    • pp.1-19
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    • 2023
  • Mathematics Listening Ability(MLA) refers to the ability to listen to and grasp the meaning of speech language containing mathematical concepts and principles, distinguishing it from daily life and listening in other subject classes. According to literature, MLA might be divided into six types. Among them, interpretation, discovering, evaluating, and evaluation may indicate an attitude that correctly listens to the meaning of the language used in mathematics classes. On the other hand, selective, pretend, and ignore are types of listening attitudes that are not appropriate. Based on the statistical analysis of 834 3rd to 6th graders and a total of 44 homeroom teachers I developed a MLA survey items for elementary school students. In this study, principal component analysis was conducted to verify reliability in the development of survey items, and expert review and correlation analysis of survey results were conducted to verify validity. In addition, the validity was verified by statistically analyzing the survey results of students and their homeroom teachers. Based on literature and statistical analysis, I developed a MLA Survey items(for students) consisting of 25 questions and a mathematical resolution measurement tool(for teachers) consisting of 26 questions.