• 제목/요약/키워드: importance arrangement

검색결과 149건 처리시간 0.029초

전산유체역학을 이용한 도로 식재 배치 유형에 따른 미세먼지 저감 분석 (Analysis of Fine Dust Reduction according to Road Planting Arrangement Type Using Computational Fluid Dynamics)

  • 이승헌;김찬민;김락우
    • 생물환경조절학회지
    • /
    • 제32권4호
    • /
    • pp.285-294
    • /
    • 2023
  • 미세먼지 저감을 위한 가장 현실적이고 효율적인 방법은 도시 지역의 녹지 조성으로 이에 대한 관심이 증가하고 있다. 국내 도시 특성상 도로변에 녹지를 조성할 경우 별도의 녹지 조성없이 대기 중에 떠다니는 미세먼지나 차량에서 발생한 미세먼지가 도로변 가로수에 흡착돼 미세먼지 저감에 효과적이다. 하지만, 미세먼지는 대기 중에 부유하며 존재하고 지역별 미세먼지 농도 차이와 식재 배치 차이로 인해 때문에 미세먼지 농도 현장 측정 및 대기 중 이동 경로에 대해 예측과 도로 식재 배치 유형별 미세먼지 저감효과에 대한 규명이 어려운 실정이다. 이에 본 연구에서는 CFD 시뮬레이션을 이용하여 도로 중앙분리대와 가로수의 식재 유형별로 미세먼지 농도변화 및 미세먼지 저감효과를 분석하였다. 분석 결과 미세먼지 저감을 위해서는 중앙분리대에 식재가 있는 것이 미세먼지 저감 효과가 탁월할 것으로 보이며 가로수에 교목과 관목을 동시에 설치하는 것이 바람직하다고 판단된다. 본 결과를 바탕으로 도시 대기환경 개선을 위한 가로녹지 식재 기준(가이드라인) 마련에 효과적으로 이용될 것으로 판단되며 향후 도시 도로변 미세먼지 저감 연구 진행에 선행연구의 참고자료로 활용될 수 있을 것으로 기대된다.

지형학적 인자에 따른 설계홍수량 특성에 관한 연구 (A Study of Design Flood Discharge Characteristics by Topographical Parameters)

  • 박기범;김교식;황성환;차상화
    • 한국수자원학회:학술대회논문집
    • /
    • 한국수자원학회 2006년도 학술발표회 논문집
    • /
    • pp.1182-1186
    • /
    • 2006
  • 하천유역에 있어 설계홍수량의 결정은 치수적인 측면에서 매우 중요한 일이다. 유역의 대소와 중요도에 따라서 하천의 설계홍수량이 산정이 된다. 갈수록 홍수의 피해정도가 심해지고 홍수에 대한 방어의 중요성이 더욱 가중되고 있는 현실에서 설계홍수량의 추정은 매우 중요하다고 할 수 있다. 특히 홍수량을 산정하는 데 있어 가장 큰 영향을 미치는 것은 강우량이다. 그러나 똑같은 강우량이라 할지라도 유역의 특성에 따라 산정되는 홍수량은 상이하게 된다. 유역의 특성이 홍수량의 산정에 있어 영향이 크다는 것은 선행 연구의 결과와 경험에 의하여 확인이 된 사실이다. 그러나 많은 하천들이 각각의 유역특성을 가지고 있으나 이들과 산정된 설계홍수량의 관계가 어떤 형태로 이루어져 있는 가에 대한 연구는 아직 미흡한 실정이다. 본 연구에서는 기왕에 하천정비기본계획에 의해 산정된 설계홍수량과 지형인자들이 어떤 상관성을 가지고 있는 가에 대하여 연구하여 미계측유역이나 하천계획이 수립되지 않은 중소하천 유역의 설계홍수량 추정에 있어 추가적인 정보의 제공측면에서 유역의 지형인자와 설계홍수량과의 상관성을 조사하였다.

  • PDF

중학교 가정과 실험.실습 내용의 적정성에 관한 조사연구 (A Study on the Fitness of Content of Experiment and Practice of Home Economics in Middle School)

  • 장정진;윤인경
    • 한국가정과교육학회지
    • /
    • 제4권1호
    • /
    • pp.77-86
    • /
    • 1992
  • This thesis has two objects: Firstly, the arrangement of basic data and formulating a system of experiment and practice in home economics and Secondly, the groping the way of improving the problems raised in the home economics education spot. A questinaire is used as the research tools for the fitness of content, of experiment and practice in the home economics and SPSS/PC(sup)+ and Scheffe Test are used for investigation. The results are as follows. 1. Students recognize the importance of experiment & practice more than the teacher. In the type of middle school teachers engaged in the girl’s middle school recognize the importance of experiment & practice more than those of coeducation middle school. 2. The percent of the school which executes over the 50% of experiment & practice in the contents of text book is 70%. The most numerous in the sphere of guiding is ‘seperate practice of student’. The reason of not executing the experiment & practice are ‘the concentration of the theory education’and ‘the lack of equipment and tools’3. Practice room for cooking was mostly established, but practice room of sewing was established only 5.6%. The contents of textbook for clothing sphere can be executed by using the equipment & tools of school only 9.2%. 4. 40% of the students feel that the content level of experiment & practice is difficult. Most of the students feel that the content level of experiment & practice, especially in the sphere of clothing, in unproper on the level fitness of contents by grade. 5. Most of the students assent on the positive effect for the degree and the most important cause for its not contributing to the everday life is the lack of experiment & practice in school. 6. Most of the students feels positively on the interest degree of content and the students who though much of the experment & practice feels positively on the interest degree of content.

  • PDF

온라인쇼핑몰 신한복 스타일링에 관한 연구 (A Study on New-Hanbok Styling of Online Shopping Mall)

  • 임린
    • 패션비즈니스
    • /
    • 제23권4호
    • /
    • pp.68-85
    • /
    • 2019
  • The purpose of this study is to analyze the characteristics of the New-Hanbok styling of online shopping mall, and to also suggest a solution to the problems of the New-Hanbok styling and develop a progressive plan. The research method was to search six keywords related to 'Hanbok' in the search portal 'Naver' and select 14 Hanbok brand companies. A total of 412 pictures of products for the model used on main screen were analyzed among 14 companies. The results of analyzing the New-Hanbok styling are as follows. First, the New-Hanbok styling showed the unstructured characteristics like unconventional arrangement after getting out of the fixed form of traditional Hanbok styling elements. Secondly, diverse images were represented as the hairstyle and makeup were highlighted as the elements of New-Hanbok styling. Thirdly, the new, fresh, trendy, and fashionable New-Hanbok styling was shown through the mix-and-match of traditional Korean-style accessories and fashion jewelries. However, regarding the New-Hanbok styling shown in online shopping mall, the overlapped items were especially found while the difference in material, pattern, and color required to overcome this problem was insufficient. It was lacking in the styling consistency for the establishment brand image while the awareness of the importance of accessory styling was insufficient. The brand competitiveness of the New-Hanbok could be secured by raising awareness on differentiation, consistency, and importance through the styling elements such as item composition, material, pattern, color, hairstyle, makeup, and accessory of brand.

산업환경 변화에 따른 미래형 산업단지의 공원녹지 계획방향에 관한 연구 (Planning Directions for Parks and Green Spaces in Future Industrial Complexes according to Changes in the Industrial Environment)

  • 이은엽;이현주;김태균;최대식;송영일
    • 한국환경과학회지
    • /
    • 제30권2호
    • /
    • pp.109-118
    • /
    • 2021
  • Due to changes such as those stemming from the onset of the fourth industrial revolution, it is expected that industrial complexes will transform from being spacious structures into smaller, integrated complexes. Green parks, which are also a type of infrastructure within industrial complexes, also require planned direction suited to the changing environment. The planned directions of green parks in new industrial complexes were examined and surveys were conducted on industrial complex workers. Preferred functional arrangement, importance, and satisfaction levels of green ratios, preference of compound facilities linked to parks, appropriate dimensional greening methods were all surveyed across 1,035 businesses. Results of the survey exhibited that there was high awareness on the importance of building green areas, but it was found that current greenery levels were insufficient. There was a high rate of responses indicated that dimensional greening is required in building-type industrial spaces, and preferences for rooftop greenery, stair-type greenery, and atrium greenery were also high. There were many opinions that it is necessary to integrate cultural facilities, exhibition and educational facilities, commercial facilities, parking lots in parks. Furthermore, it was found that it is necessary to provide pathways for bikes and pedestrians, rather than those for vehicles, and to connect them with the green parks. This study stopped short of exploring the directions for which green parks should aim in new industrial complexes with changes in the industrial environment. In the future, more concrete plans on green park planning techniques according to the spatial characteristics and structures of new industrial complexes will be necessary.

한진해운 사태로 인한 광양항 컨테이너 물동량의 영향 분석 (Analysis of the Impact of the Hanjin Shipping's Crisis on Container Volume of Gwangyang Port)

  • 정수현
    • 한국항만경제학회지
    • /
    • 제39권4호
    • /
    • pp.83-96
    • /
    • 2023
  • 세계경제의 국제화가 진전됨에 따라 해운과 항만의 역할과 그 중요성은 계속해 증가하고 있어, 이들 산업은 수출입 최전선에서 다양한 부가가치를 창출하는 국가 기간산업으로 육성됐다. 그러나 한국을 대표하는 한진해운 파산은 국가 전체 경쟁력 악화에 영향을 끼쳤고, 현시점까지 그 여파가 직·간접적으로 전해지고 있다. 그래서 본 연구는 한진해운 사태가 광양항 컨테이너 물동량과 구조 변화에 어떤 영향을 미쳤는지 개입분석을 통해 통계적으로 규명하였다. 연구의 주요 결과로는 광양항 물동량 감소에 미친 영향은 한진해운의 파산(2017.2)보다 자율협약의 개시시점(2016.4)이 더 컸고, 이로 인해 총 98.3만TEU(연간 26.8만TEU)가 감소하였다. 이를 통해 본 연구가 해운업과 해운정책의 중요성을 상기하고, 정부의 더욱 신중하며 올바른 정책 판단을 도울 이론적 기초를 제공할 것으로 기대한다.

교정시설에 대한 시설관리자 측면의 요구사항 도출 및 중요도 분석 (An Analysis of Importance and Requirement Factors in the aspect of Facility Manager for Correctional Facility)

  • 천제홍;강민구;김민석;황욱선;김용수
    • 한국건설관리학회논문집
    • /
    • 제13권3호
    • /
    • pp.25-33
    • /
    • 2012
  • 본 연구는 교정시설에 대한 시설관리자 측면의 요구사항 도출 및 중요도 분석을 목적으로 수행되었다. 이를 위해 2000년 이후 준공된 교정시설 11곳을 사례대상으로 선정한 후, 선정된 교정시설의 시설관리자에 대한 설문조사를 통해 요구사항을 도출하였다. 이렇게 도출된 요구사항을 기초로 시설관리자 설문조사를 통해 중요도 지수조사한 후 AHP기법을 활용하여 요구사항의 중요도를 분석하였다. 상기와 같은 목적과 방법에 따라 진행된 본 연구의 결론을 요약하면 다음과 같다. 1) 교정시설에 대한 시설관리자 측면의 요구사항은 배치 및 동선, 건축마감, 기계설비, 전기설비의 총 4가지 분야로 도출되었다. 2) 각 분야별 요구사항의 중요도 분석 결과를 정리하면 다음과 같다. 배치 및 동선분야는 건물배치계획(10.9%)이 주요 요구사항으로 선정되었다. 건축마감분야는 차음성개선(14.1%)이 주요 요구사항으로 선정되었다. 기계설비분야는 개별 냉 난방시스템 구축(11.9%)이 주요 요구사항으로 선정되었다. 전기설비분야는 제어장치 개선(12.2%)이 주요 요구사항으로 선정되었다.

경사각을 갖는 적층판식 유수분리기의 유수분리 효율에 관한 연구 (A Study on the Oil/Water Separation Efficiency of Laminated Plate Type Oily water Separator with Inclined Angle)

  • 한원희;김준효;최민선
    • Journal of Advanced Marine Engineering and Technology
    • /
    • 제25권2호
    • /
    • pp.365-374
    • /
    • 2001
  • Its a tendency to strengthen related international was as the importance on marine oil pollution recently becomes the issue. According to the regulation of IMO, oil discharge from ships is allowed under 15PPM only and oil filtering equipment is essential. Oily water separator of laminated plate type which is one of gravity type separator can be use as assistant equipment for the oil filtering system to meet the present IMO standard, because it fits well to process large amount of rich oil with high specific gravity. The purpose of this paper is to investigate an efficiency of oil/water separation with the characteristics of laminated plate arrangement. The analyse of oil contents for oil-water mixture were carried out in order to find an efficiency of oil/water separation and an experimental study was simultaneously carried out to investigate internal flow characteristics of separator by visualization method and PIV(Particle Image Velocimetry) measurement at three spaces of plates for 5, 10 and 15 mm with variation of inlet flow rates of $0.25m^3$/h and $0.5m^3$/h. The experimental results showed that the space of the plates acts a significant role in the separating process.

  • PDF

폐과오종 치험 3례 (Pulmonary Hamartoma (A report of 3 cases))

  • 조광현;박동식;홍숙희
    • Journal of Chest Surgery
    • /
    • 제15권2호
    • /
    • pp.155-161
    • /
    • 1982
  • The term hamartoma was first used by Albrecht to describe what he considered to be localized errors of development involving one or more tissue native to the organ of origin. The definition was meant to encompass not only abnormal local growth rate, but also the spatial arrangement, relative proportions and degree of the component tissue. But lately the major conclusions are that this group of lesion is neoplastic than developmental in origin. The Importance of pulmonary hamartoma is that they are relatively common among the benign tumor of the lung, but they usually present as asymptomatic coin lesion on chest x-ray film and were find out In routine check up and frequently mimic clinically the more common lung tumor such as cancer. Recently, we have experienced three cases of pulmonary hamartoma which were all discovered during routine chest film check up for certificate of health and evaluation of other disease. All of these were surgically resected with good result. Among the operations, one of these was mass enucleation and the others were lobectomy of lung involved by the mass.

  • PDF

전시디자인의 변천과정과 요인에 관한 연구 - 독립기념관의 시기별 전시변화를 중심으로 - (A Study on Transition Process and factor of Exhibition Design - Based on the Exhibition's Transition in the Independence Hall -)

  • 권순관
    • 한국실내디자인학회논문집
    • /
    • 제15권5호
    • /
    • pp.265-272
    • /
    • 2006
  • Traditionally exhibition design as been restricted to architectural, interior, and lighting design, but recently it has begun to overlap into environmental, performance, and installation art. Exhibition design also increasingly involves the application of film, fashion, and the new media. In the past, exhibits were arranged and displayed for the visitor to view directly, but with the development of more effective exhibit media a connection has been created between the exhibit and the visitor. However exhibition design has reached the limits of continuous growth without background theory, when now it must take Into consideration the museum's activation and the importance of the exhibition's design. Exhibition design has developed and grown rapidly since the Taejeon Expo in 1993, but it is a difficult development without a theoretical structure. The flow of exhibition design must be systemized, as the systemization of the transition process of exhibition design has not yet been achieved. This study aims to present an arrangement of exhibition design flow, and to investigate the variation factors in the transition process of exhibition design and exhibit medium development, based on the 18 year history of the Independence Hall that introduced the first systematic planning of an exhibition in 1987.