• 제목/요약/키워드: qualitative assessment

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다변수 메트릭 모델을 이용한 식장산 계곡천의 생태 건강성 평가 (Ecological Health Assessment of Mountainous Stream in Mt. Sik-Jang using Multi-metric Models)

  • 배대열;김유표;안광국
    • 한국물환경학회지
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    • 제24권2호
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    • pp.156-163
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    • 2008
  • This study was to introduce a methodology of ecological health assessment for efficient management and to provide some diagnostic results of the survey. We evaluated ecological health assessment at five sampling locations of Sikjang Mountainous Stream using the index of biological integrity (IBI) and Qualitative Habitat Evaluation Index (QHEI) during May - October 2006. The health condition, based on the IBI model, averaged 32 and varied from 27 to 37 depending on the sampling sites. Thus, the stream health was judged as "good" to "fair" conditions. IBI values showed slight differences between upstream and downstream sites. Whereas, QHEI values varied from 75 (fair condition) to 196 (excellent condition) and QHEI at St. 4~5, indicating the downstream reach had significantly lower than the headwater site (St.1). Regression analyses also showed that QHEI values had a linear decrease from the headwater to downstream. This result indicated that habitat quality was rapidly degradated by human influence. Overall, data of IBI and QHEI suggested that the stream health was maintained well in the present but the habitat and biological quality were partially degradated in the downstream. So, the human interference should be minimized to protect the downstream environment.

적층 석탑의 내진성능 평가요소 (Assessment Factors for Seismic Performance of Multi-block Stone Pagodas)

  • 김남희;구인영;홍성걸
    • 한국지진공학회논문집
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    • 제23권1호
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    • pp.19-29
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    • 2019
  • Recent earthquakes in Korea caused some damages to stone pagodas and thereby awakened the importance of earthquake preparedness. Korean stone pagodas which have been built with very creative style of material use and construction method are worthy of world heritage. Each stone pagoda consists of three parts: top; body; and base. However each tower is uniquely defined by its own features, which makes it more difficult to generalize the seismic assessment method for stone pagodas. This study has focused on qualitative preliminary evaluation of stone pagodas that enables us to compare the relative seismic performance across major aspects among many various Korean pagodas. Specifically an analytical model for multi-block stone pagodas is to be proposed upon the investigation of structural characteristics of stone pagoda and their dynamic behavior. A strategy for seismic evaluation of heritage stone pagodas is to be established and major evaluation factors appropriate for the qualitative evaluation are identified. The evaluation factors for overall seismic resisting behavior of stone pagodas are selected based on the dynamic motions of a rigid block and its limit state. Numerical simulation analysis using discrete element method is performed to analyze the sensitivity of each factor to earthquake and discuss some effects on seismic performance.

소아과 질환에서 주양육자 대상의 질적연구 논문에 대한 COREQ (Consolidated Criteria for Reporting Qualitative Research) 가이드라인을 이용한 방법론적 질평가 (Methodological Assessment of Qualitative Research with Caregivers in Pediatric Disease by COREQ (Consolidated Criteria for Reporting Qualitative Research) Guideline)

  • 김혜진;전채헌;한예지;정문주;김현호;임정태
    • 대한한방소아과학회지
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    • 제32권4호
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    • pp.121-140
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    • 2018
  • Objectives This research was aimed to analyze and assess the articles of qualitative research of Pediatrics by following Consolidated Criteria for Reporting Qualitative Research (COREQ). Methods Two researchers analyzed and assessed the reports' quality and appropriateness based on COREQ guideline. The articles that failed to achieve consensus from the two researchers, the third researcher made a final decision. Results A total of fifty-six reports which used caregivers as participants, were selected and adopted qualitative research methods were chosen. In most qualitative studies, COREQ was not implemented. Some parts of the studies were poorly described and elaborated when reviewing them based on the COREQ guidelines. In the 'Research team and reflexivity', there was lack of description about the researcher. In the 'Study design', there were no detailed descriptions on the approaches they took in recruiting their study participants. There was not enough detail reflexivity participants who refused, and where the recruitment took place. There were also no records of whether there was a pilot test or a data saturation. In 'Analysis and findings' section, there were few articles mentioning Participant checking, and the main opinion of the participants were well analyzed in all the papers, but excluding opinions of few participants. Conclusions There are still many qualitative studies that have caregivers as participants, in the field of pediatrics. However, methodological skills are insufficient. The use of the COREQ guidelines should be further implemented for more robust and methodological improvement.

수요관리투자사업 평가용 전산화 모델개발 (Development on the Computerizing Assessment System Model for DSM Investment Programs)

  • 이상설;이찬섭;조성환;박상용
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2008년도 하계학술발표대회 논문집
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    • pp.249-255
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    • 2008
  • This paper developed the computerizing assessment system modeling of the natural gas and district heating DSM programs. It constructed as each project in accordance with the business investment plans & assessment DB, related M&V data DB and cost-effectiveness analysis data DB. It is composed of total 58 tables which are 22 tables which are used in the plan and the assessment, 16 tables which are used in the cost-effectiveness analysis, 18 tables which are used in the M&V, table which is used in qualitative evaluation, as by each programs. This computer programs can contributed to DSM business investment system construction as implementing for algorithm development and an estimation by each programs.

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A DEVELOPMENT OF MODEL FOR FIRE HAZARD ASSESSMENTS H THE BUILDINGS

  • Lee, Su-Kyung;Kim, Su-Tae;Ha, Dong-Myung
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
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    • pp.384-391
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    • 1997
  • The hazard assessment in which the potential hazard factors In the buildings are investigated and the scale of the hazard is analyzed should be performed first in order to prevent personal and material damages due to building fire. In this study, the building fire hazard are assessed using 822-item checklist, for the qualitative evaluation of which the main factors are classified into 10 items, yielding 100 scale points with some weighting. It is shown that present model is applicable for the assessment of all general buildings through the examination of the suitability of assessment model by actual assessment of existing building. Also, the checklist is prepared in itemized questionnaire form for easy assessment of building fire hazard. Therefore, the present model will be helpful for those working in fire prevention, who are suffering from the lack of manifest evaluation model for the fire prevention assessment so far in Korea.

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건축물 디자인 평가를 위한 평가체계 및 평가항목개발에 관한 연구 - 중소형 건축물을 중심으로 - (A study on the Development of Assessment Category and Items for Building Design Evaluation - Focused on the Small and Medium Building -)

  • 류수훈
    • 한국농촌건축학회논문집
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    • 제11권2호
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    • pp.19-27
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    • 2009
  • The purpose of this study is to develop an evaluation category and items for architectural design assessment in attempt to improve design of small scale buildings within Se-Jong City. Some of the domains in existing design assessment are building design, function, environment, and technology. The category and items developed in this study however, is composed to aim for the building's qualitative design assessment. Therefore the architectural assessment tool in this study includes design assessment of the building. Also, assessment category was comprised to verify the design expression used in improving the function and environmental condition of the building. The study was enforced by extracting raw data from existing architectural design related cases. Classification system and assessment category was developed and presented through combination of expert advice, survey, and sample test. In result of this study, the composition system required for design assessment can be divided into five large classifications ; public and harmony, access, form, environmental design, and space. Total of 24 assessment categories are developed and presented. The assessment category and standard presented in this study reflects the distinct regional characteristics and originality of Se-Jong city, creating one of a kind design assessment tool.

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기술제안서의 개발조직 부문에 관한 정량적 평가 (A Quantitative Evaluation on Developmental Organization of Technical Proposals)

  • 추경균;권영갑;류성열
    • 한국IT서비스학회지
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    • 제3권1호
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    • pp.21-41
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    • 2004
  • The technical proposal suggested and published by MIC(Ministry of Information and Communication, henceforth MIC) contains too general assessment elements, which causes qualitative and subjective assessment of technical proposals. Thus, in terms of the technical proposal assessment. It lacks In fairness, validity and accuracy. Furthermore, it has a great deal of difficulty in assessment caused by the inconsistency between proposal planning and assessment methods. Also, each company has different writing format, so it is impossible to make use of its maneuvering data for the assessment. To overcome these weaknesses, our research focused on a quantitative evaluation on development organization, which is a part of organizational and administrative part of the technical proposal suggested and published by MIC. In this research, we divided development organization for the technical proposal into organization, teams, and team members, and then studied addition, deletion and merging for the assessment criteria. For the related study, we chose especially CMM(Capability Maturity Model) from a lot of international and national references, which is a model measuring the maturity of organization, and then we focused on Small-CMM which is available in the small-sized organization. We also suggested input form, description method, assessment elements for the quantitative assessment in the chosen developmental organization, and finally we proposed standard referencing criteria for the assessment. Our study concludes that our assessment method are valid and available in comparison with the previous Delphi method through a validity evaluation test.

AHP 기법을 이용한 시내버스 교통사고 저감대책 의사결정 모델개발 (Development of Decision Making Model of Measures on the Decrease of Traffic Accident Following Implementation of Intra-city Bus by using AHP)

  • 최재원;정헌영;장석용
    • 대한토목학회논문집
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    • 제31권5D호
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    • pp.679-687
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    • 2011
  • 시내버스 준공영제 시행이 시민들의 수송에 좋은 성과를 거두고 있지만 교통사망사고 증가에 따른 부작용이 발생하고 있다. 따라서 본 연구에서는 시내버스 준공영제 시행에 따른 교통사고 저감대책의 의사결정 모델 개발을 시도하였으며, 자료조사 및 분석방법은 교통전문가 설문과 계층분석법(AHP)을 활용하였다. 계층분석법(AHP)의 상위평가항목으로는 정량적 대책과 정성적 대책을 제시하였다. 하위평가항목 중 정량적 대책으로는 버스증차 및 안전장치 설치, 정류소 시설물 보완, 보행자 보호 시설물 보완, 교통안전 진단평가 및 보완으로 구성되어 있으며, 정성적 대책으로는 제도정비, 노선설계 보완, 교육 캠페인강화, 단속강화로 구성되었다. 분석결과를 살펴보면 첫째, 정성적 대책보다 정량적 대책에서 더 높은 가중치 결과가 나타났으며, 둘째, 정량적 대책으로는 정류소 시설물보완, 교통안전 진단평가 및 보완 순으로 나타났고, 셋째, 정성적 대책으로는 제도정비, 노선설계 보완 순으로 나타났다. 이런 결과는 향후 타시도의 교통사고 저감대책을 수립 시행할 경우 참고할 수 있는 기초 자료가 될 것이라고 사료된다.

위성영상 시공간 융합과 CASA 모형을 활용한 산지 개발사업의 식생 순일차생산량에 대한 영향 평가 (Impact Assessment of Forest Development on Net Primary Production using Satellite Image Spatial-temporal Fusion and CASA-Model)

  • 김예화;주경영;성선용;이동근
    • 한국환경복원기술학회지
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    • 제20권4호
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    • pp.29-42
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    • 2017
  • As the "Guidelines for GHG Environmental Assessment" was revised, it pointed out that the developers should evaluate GHG sequestration and storage of the developing site. However, the current guidelines only taking into account the quantitative reduction lost within the development site, and did not consider the qualitative decrease in the carbon sequestration capacity of forest edge produced by developments. In order to assess the quantitative and qualitative effects of vegetation carbon uptake, the CASA-NPP model and satellite image spatial-temporal fusion were used to estimate the annual net primary production in 2005 and 2015. The development projects between 2006 and 2014 were examined for evaluate quantitative changes in development site and qualitative changes in surroundings by development types. The RMSE value of the satellite image fusion results is less than 0.1 and approaches 0, and the correlation coefficient is more than 0.6, which shows relatively high prediction accuracy. The NPP estimation results range from 0 to $1335.53g\;C/m^2$ year before development and from 0 to $1333.77g\;C/m^2$ year after development. As a result of analyzing NPP reduction amount within the development area by type of forest development, the difference is not significant by type of development but it shows the lowest change in the sports facilities development. It was also found that the vegetation was most affected by the edge vegetation of industrial development. This suggests that the industrial development causes additional development in the surrounding area and indirectly influences the carbon sequestration function of edge vegetaion due to the increase of the edge and influx of disturbed species. The NPP calculation method and results presented in this study can be applied to quantitative and qualitative impact assessment of before and after development, and it can be applied to policies related to greenhouse gas in environmental impact assessment.

HAZOP 기법을 이용한 회분식 라디칼 반응 공정에 대한 정성적 위험성 평가 방법 연구 (Qualitative Hazard Analysis for a Batch Radical Reaction Process using HAZOP Method)

  • 박경민;이동규;이준만;안원술
    • 한국산학기술학회논문지
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    • 제20권2호
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    • pp.385-393
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    • 2019
  • 라디칼 회분식 반응 공정을 사용하는 있는 중 소규모 화학공장의 경우, 취급 물질, 작업 내용 및 제품 등의 여러가지 상황 변화에 따른 잠재적인 화재, 폭발 및 안전의 위험성이 상존해 있다. 이러한 화학공장에서 마주치는 잠재적인 위험성에 대하여, 정성적인 위험성 평가 및 분석을 위하여 대표적으로 많이 사용되는 평가 방법인 HAZOP 기법을 이용하여 위험성 평가 연구를 진행하였으며, 이를 바탕으로 피해 크기를 최소화할 수 있는 방안을 모색하였다. 이를 위하여 국내의 중소화학 공장 중, 라디칼 회분식 반응 공정에 의하여 아크릴 수지를 생산하는 중 소규모의 화학공장을 선택하여 현장 설비, 배관 계장도 및 공정에 대하여 HAZOP 기법의 절차에 따라 위험성 평가 및 분석을 진행하였다. 연구의 결과로서, 위험성을 예방하기 위한 구체적인 조치로서는 불활성기체의 투입 및 압력 게이지 설치가 반드시 필요하며, 또한 반응 개시제와 모노머는 따로 분리하고, 폭주반응을 막기 위한 반응억제 물질과 설비를 추가로 설치하는 것이 반드시 필요함을 도출할 수 있었다.