• Title/Summary/Keyword: Area standards

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Support-area Dependence of Vibration-insensitive Optical Cavities

  • Lee, Won-Kyu;Park, Sang Eon;Park, Chang Yong;Yu, Dai-Hyuk;Heo, Myoung-Sun;Kim, Huidong
    • Current Optics and Photonics
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    • 제3권2호
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    • pp.128-134
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    • 2019
  • The vibration sensitivities of optical cavities depending on the support area were investigated, both numerically and experimentally. We performed numerical simulations with two models: one with total constraint of the support area, and the other with only vertical constraint. An optimal support condition insensitive to the support's area could be found by numerical simulation. The support area was determined in the experiment by a Viton rubber pad. The vertical, transverse, and longitudinal vibration sensitivities were measured experimentally. The experimental result agreed with the numerical simulation of a sliding model (only vertical constraint).

ESL Standards: 언어와 학문영역의 통합을 위한 영어교육 목표 (ESL Standards: Goal of English education for the integration of language and academic area)

  • 이종복
    • 영어어문교육
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    • 제9권2호
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    • pp.243-261
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    • 2003
  • The purpose of this study is to introduce Korean teachers and researchers ESL standards for TESOL students developed by TESOL association in 1997. The standards were designed to be useful for teachers and other educators who want to incorporate them in their educational programs for ESOL students in mainly the USA. These standards are important because they articulate the English language development needs of ESL learners and provide directions to educators on how to fulfill the needs of ESL students. Also. they emphasize the major role of language in the attainment of other content area standards. In this paper the author introduced not only the theoretical backgrounds. construct. meaning of the standards, and the ways of implementation but also their lessons to our Korean situation.

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초.중등학교 교지(校地) 면적 및 관련 기준(基準)에 관한 조사 연구 (A Survey Study on the Status and Standards of School Area)

  • 이화룡;동재욱
    • 교육시설
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    • 제17권3호
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    • pp.3-11
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    • 2010
  • This survey study aims to explore the school area standards for elementary, middle and high schools. Traditionally the school site has been recognized as a space of teaching and learning for students. Though its functions and needs have recently been changing from the areas for physical education and training to for various activities such as recreation, play, communication, informal and social areas etc. Moreover the school site is also a critical component of community life. Many communities have a significant shortfall in the amount of park and open space land available and accessible for use. In this viewpoint the standards of school facilities should develop a comprehensive approach to insure that students and residents are provided the opportunity to engage in appropriate types and amounts of everyday's activities during the school day and after school. In doing so, it surveys the school areas of the existing schools and the new schools built in Dongtan City. Finally, it points out the problems of government's regulation for school facilities and proposes the adequate directions for school area standards. This study would help to plan the optimum size of school area and ground and the reasonable expenditure for school facilities.

2007년 개정 중학교 정보과목 '정보사회와 정보기술' 영역 성취기준 및 평가 기준에 관한 연구 (A study on the achievement and assessment standards for the area of "Information Society and Information Technology" in the 2007 revised middle school 'Informatics' subject.)

  • 김경훈;이경낭;강신천
    • 컴퓨터교육학회논문지
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    • 제12권5호
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    • pp.63-74
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    • 2009
  • 본 논문에서는 2007년 개정 중학교 정보과목 교육과정의 "정보 사회와 정보 기술"영역의 교육과정 내용을 분석하여 해당 영역의 성취기준을 상세화하고, 성취 기준에 근거한 평가기준을 설정하여 제시하였다. 제시한 성취기준과 평가기준은 새 교육과정을 근거로 개발하였기 때문에 2010년도에 적용되는 새 교육과정에 의한 중학교 정보 교과의 교수-학습 활동에서 교사들의 학습 목표의 설정, 학습 범위와 내용 수준 설정, 교수-학습 방법 개선, 평가 방법 개선 등에 도움이 될 것으로 기대한다.

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슬랙스 동작 적합성 평가의 정량적 평가 기준 설정 (Establishing Quantitative Evaluation Standards for the Mobility test of Slacks)

  • 김선영;남윤자
    • 한국의류산업학회지
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    • 제18권1호
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    • pp.80-90
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    • 2016
  • This study presents quantitative evaluation standards for they mobility test, conducted in the process of a slacks fit test. This study quantified the subjects' evaluation on the wearability of slacks to provide objective qualitative evaluation methods for existing mobility tests. The subjects were women of standard bodytype between the ages of 18 and 24 wearing slacks designed to test their mobility based on differences in ease in waist girth, hip girth, crotch length and knee length. A qualitative evaluation tested the wearability of slacks. Clothing pressure and gap area between the body and slacks were measured based on a quantitative evaluation. The clothing pressure and the gap area between the body and slacks (which reflect the results of the wearability test) were presented in this study as quantitative evaluation standards. Clothing pressure tended to increase as the ease of slacks decreased; however, clothing pressure standards, that induce discomfort, differed by body parts. The hip, crotch, and knee area were relatively less sensitive despite the waist and the abdominal area sensitivity to clothing pressure. This study suggests the minimum ease for the appropriate wearing comfort of slacks by region and motion as standards for the quantitative evaluation of mobility tests. These was reset in accordance to the limits of clothing pressure when the minimum ease was considered as wearable but exceeded the clothing pressure limits.

지역경찰관서 면적기준 개선을 위한 실태조사 (A Survey on the Spaces in Police Substation for Improving Area Standards)

  • 강경연;한기성;이경훈
    • 대한건축학회논문집:계획계
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    • 제36권2호
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    • pp.3-11
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    • 2020
  • The police substation includes work spaces for civil services, interviews, and meetings, etc, and private spaces for rest, showers and cafeterias and so on. Since a large number of rooms for each function should be installed in a relatively small building, it is important to develop an area standard for efficient space organization in consideration of the functional characteristics and usage patterns of each space. The purpose of this study is to suggest the way for improving the area standards for spaces in police substation based on the results of existing standards analysis and case study. For this objective, architectural documents of 161 police substations built after 2013 in Korea were comparatively analyzed. Sixteen of these facilities were selected for field survey and investigated how the workspace and private area were organized and used. The results of investigation showed that there were a number of problematic cases, such as spaces not installed or insufficient, spaces used for two or more functions, spaces installed even though they are not included in the standards. It was mainly due to the fact that several important spaces which had been installed in most police substations were not included in the existing standards. The ways for improvement were suggested like following four points: (1) Modifying the criteria for classifying facility size, (2) Modifying the lists of the required spaces, (3) Specifying the basis of calculation for each space in detail, and (4) Differentiating the way to organize spaces according to the facility size.

M&S를 통한 비상대피시설의 적정 출입구 개수 산정에 관한 연구 (A Study on the Estimation of the Number of Suitable Entrances for Emergency Evacuation Facilities through Modeling and Simulation)

  • 이정문;노정헌;박영준
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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    • pp.129-130
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    • 2019
  • In this research, we determine the proper number of entrances in the evacuation facilities for civil and military personnel. The current standards on the emergency evacuation facility only sets the number of possible evacuees and the according architectural floor area since the evacuation have been completed. However, other than static standards such as the floor area, there is needs to consider the dynamic standards along with allowable evacuation time such as the number of entrance, staircases and so on. Therefore, we need to consider the number of entrances and their location in order to account for the allowed evacuation time of particular number of people in a set area. The outcome could be contributed to the standards which should contain the dynamic conditions associated with evacuation.

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사회적 약자를 위한 주거규모의 최소기준 설정에 관한 연구 (A Study on the Establishment of Minimum Housing Standards for the Socially Underprivileged)

  • 김도연;윤재신
    • 한국주거학회논문집
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    • 제20권3호
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    • pp.47-58
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    • 2009
  • Providing an adequate housing to the socially underprivileged with a weak economic base is the most difficult task of housing policies. Korea established minimum housing standards and has used them for housing policies. However, the level of Korean minimum housing standards is far lower than that of foreign minimum housing standards. Thus, this study made a comparative analysis of Korean minimum housing standards with foreign housing standards in various aspects in order to guarantee housing quality of the socially underprivileged in Korea. In particular, the floor area and ratio of small lease homes are minutely examined to present the actual housing standard of the socially underprivileged. The level of Korean minimum housing standards suggested in this paper is very close to that of Japanese minimum housing standard, which is 37.95 $m^2$ for a 3 member family and just above Chombard de Lauw's pathological limit (36.03 $m^2$). As this research is specifically focused on the establishment of minimum floor area standards for the socially underprivileged, further research should be made in consideration of more specific requirements of various groups for the socially underprivileged.

고등학교(高等學校)의 평면구성(平面構成) 현황(現況)에 관한 연구(硏究) - 최근 설계(設計)된 학교(學校)들의 평면도(平面圖) 분석(分析)을 통하여 - (A Study on the Plan Organization Status of High Schools Facilities - Through Analyzing of Recently Designed Plan Drawings -)

  • 류호섭
    • 교육시설
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    • 제9권1호
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    • pp.15-26
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    • 2002
  • According to seventh curriculum, new types of school design have been developed recently. However there are hardly any data of national status about plan and area organization, types and number of rooms of those. On this background, the purpose of this study is to provide fundamental resources for architectural designing and planning of high schools and to recognize national status of plan organizations of high schools through collecting 53 school's standard design drawings(arrangement, plan drawing) which city, province education office drafted for 4 years(from 1997 to 2000) and analyzing them into plan types, building area and type, number and area of rooms. The results of this study are as follows: 1. The range of class number of designed 53 high schools varies from 24 to 36 and 36-class-schools are 47.2% of all. Average number of class is 34.1. As a result we can find out large scale schools are mainly designed. 2. Among 53 schools, 21 schools have the department system but few of them equipped sufficient rooms and their features are very manifold. After recognizing utilization status of each schools, the standards of room type, number and plan organization should be proposed. In terms of plan type for fluent level based transferring class, most of schools are not apt. 3. In the status of type and number of rooms related to class number, range is very wide. So simplification is necessary. 4. The variations of building area, area per a class and area per a student are very large so that standard of adequate area should be established. 5. That every school which has different plan organization from conventional schools exceeds ministry of education's minimum area standards shows those standards cannot cover the diverse plan design of school. So more adequate standards should be proposed. 6. Area and number of Teacher's research room and Home Base are also very manifold from school to school. They are also considered to be simplified immediately.

드론택시(UAM)의 수직이착륙장(Vertiport) 설치기준 연구 (A Study on Vertiport Installation Standard of Drone Taxis(UAM))

  • 최자성;이석현;백정선;황호원
    • 한국항공운항학회지
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    • 제29권1호
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    • pp.74-81
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    • 2021
  • UAM(Urban Air Mobility) systems have evolved in the form of helicopters in the 1960~1970s, tiltrotors in the 1980s, small aircraft transportation systems in the 2000s, and electric-powered Vertical Take-Off and Landing (eVTOL) in the 2010s; accordingly, the early heliport has evolved to its current form of a Vertiport. Vertical Takeoff and Landing Sites, Vertiports, are important factors for the successful introduction of UAM, along with the resolution of air traffic control (ATC), air security, and noise problems. However, there are no domestic or international installation standards and guidelines yet. Therefore, in this study, installation standards were prepared by referring to domestic and international case studies, ICAO standards, and MIT research papers. The study proposes to establish standards for Final Approach and Takeoff Area (FATO) as 1.5D, 1D for Touchdown and Lift-Off Area (TLOF), and 1.5D for Safety Area (SA). It also proposes to add "UAM Vertiport Installation Standards" to the 「Act on the Promotion and Foundation of Drone Utilization, Drone Act」.