• Title/Summary/Keyword: 정성적 조사

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Comparative Analysis on Importance of TOD Planning Factors according to Decision Making Methods (의사결정방법에 따른 TOD 계획요소 중요도 비교분석)

  • Lim, Sam-Jin;Park, Jun-Tae;Kim, Tae-Ho
    • Journal of the Korean Society for Railway
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    • v.15 no.6
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    • pp.654-661
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    • 2012
  • This study aims to identify the difference between the actual characteristics of urban station influence areas and the recognition of the importance of such characteristics in planning, by analyzing the importance of transit-oriented development (TOD) planning factors that influence the use of public transportation. In terms of the methodology for the assessment, this study gives in-depth discussions over the validity of assessment methods that utilize quantitative data and those that rely on qualitative surveys of experts. Based on such discussions, the study analyzes the importance of the actual characteristics of station influence areas (quantitative) and the characteristics in planning identified by experts (qualitative), thereby suggesting implications for the orientations for future development of station influence areas.

The Scheme of Education for Gender Diversity in Computer Engineering Education (컴퓨터공학 교육에서 젠더 다양성을 위한 교육 방안)

  • Cho, Jungrae;Lim, Sukja
    • The Journal of Korean Association of Computer Education
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    • v.18 no.1
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    • pp.13-20
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    • 2015
  • The new plan for the current computer engineering involved in education and research in the values of the major and one of the female students, and you can improve your major satisfaction and retention training and development assessment process is the point of need. in computer engineering majors can be linked to the process of targeted quantitative and qualitative research conducted by the results of major and career choices of students turned out to be a mismatch could result in the phenomenon of female engineering escape. How to study ICT in education for female students to computer engineering major regional, historical and social context should be re-designed to suit the characteristics and analysis of exposed female students majoring computer engineering from anxiety and weak organization that has a sense of belonging, and to offer the first and is the appropriate teaching methods seems to be.

A Geostatistical Study Using Qualitative Information for Tunnel Rock Binary Classificationll- II. Applcation (이분적 터널 암반 분류를 위한 정성적 자료의 지구통계학적 연구 II. 응용)

  • 유광호
    • Geotechnical Engineering
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    • v.10 no.1
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    • pp.19-26
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    • 1994
  • In this paper, the application of the rock classification method based on indicator kriging and the cost of errors, which can incorporate qualitative data, was presented. In particular, the binary classification of rock masses was considered. To this end, a simplified RMR system was used. Since most of subjectivity in this analysis occur during the estimation of loss functions, a sensitivity analysis of loss functions was performed. Through this research, it was found out that an expected cost of errors could successfully be used as an indication for how well a sampling plan was designed. In certain conditions, qualitative data can be more economical than quantitative data in terms of expected costs of errors and sampling costs. Therefore, an additional sampling should be carefully determined depending upon the surrounding geologic conditions and its sampling cost. The application method shown in this paper can be useful for more systematic rock classifications.

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An Analysis of Long & Short Term Variation for Riverbed in the Moonsancheon (문산천의 장.단기 하상변동 분석)

  • Kang, Kyung-Seok;Park, Mun-Hyun;Kim, Seo-Young;Kim, Kook-Il;Park, Bong-Jin
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.1535-1540
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    • 2006
  • 하천의 평형상태를 판단하기위해 필요한 두가지 관점은 첫째, 대상 하천이 현재 평형상태에 있는 가이고 둘째, 하천에 하상변동을 일으킬 수 있는 인위적인 영향을 가한 후에 하천반응을 통해 궁극적으로 결정되는 평형상태를 예측하는 것이다. 따라서 본 연구는 하도의 특성을 토대로 하여 현 하도의 평형상태를 정성적인 측면에서 검토하고, 흐름과 유사 이송에 관련된 수학모형을 수치적으로 해석하는 하상변동모형의 분석을 통한 현하도의 안정성 및 하상변동 양상을 파악하는데 그 목적이 있다. 본 연구는 임진강 유역의 충적하천인 문산천을 대상으로 지배유량을 산정한 후 지배유량 유하시의 마찰속도와 무차원 소류력 등의 하도특성량을 산정하여 토사이송이 크게 발생하는 구간을 정성적으로 예측하였다. 예측된 구간의 현장조사결과 $No.29{\sim}No.35$ 구간의 하상의 상승은 개수공사와 수해복구공사로 인한 인위적인 굴착에 대한 퇴적으로 하천이 평형상태로 환원하고자 하는 것으로 판단되었고, $No.41{\sim}No.54$ 구간의 하상저하는 문산천 상류구간의 큰 하상경사와 보의 영향인 것으로 조사되었다. 또한 1, 2차원 모형에 의한 장 단기 하상변동 분석결과 하도특성량을 이용한 하도의 안정성 평가와 유사한 결과를 보였다. 따라서 문산천의 경우 하상변동의 양상 파악 및 하도의 안정성 판단을 하는데 있어 하도특성량을 근거로 판단하는 방법의 적용가능성을 파악할 수 있었다.

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The Impact of Employment Precariousness on Depression: Focusing on the Multidimensional Concept of Precarious Employment (고용 불안정성이 우울에 미치는 영향: 불안정 고용의 다차원적 개념을 중심으로)

  • Che, Xianhua;Moon, Daseul
    • The Journal of the Korea Contents Association
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    • v.22 no.4
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    • pp.677-688
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    • 2022
  • Precarious employment is negatively associated with mental health including depression. The aim of the study is to suggest the multidimensional definition of precarious employment and examine its impacts on depression. Using the fifth save of the Korean Working Condition Survey, we first measured six different dimensions of employment precariousness: temporariness, disempowerment, vulnerability, difficulty exercising rights, unpredictability of working times, and low wage. All of six precariousness indicators consisted of a scale from 0 to 100. Then, we conducted logistic regression to examine the association between employment precariousness and depression. For men, the risk of depression increased by 3.1%, 1%, and 0.5%, respectively, for each one point increase in vulnerability, difficulty in exercising rights, and unpredictability of working times. For women, the risk increased by 0.5%, 2.3%, and 0.8%, respectively, for each one point increase in temporariness, vulnerability, and difficulty in exercising rights. Our findings suggest that not only a secure employment contract, but also their substantive labor rights should be guaranteed for health for workers.

Evaluation of Feasibility of PDA-based Traffic Accident Investigation Device (PDA기반 교통사고 조사 장치의 적용성 평가)

  • Lee, Eun-Jung;Lee, Sang-Soo;Oh, Young-Tae;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.8 no.3
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    • pp.34-41
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    • 2009
  • Recently, information-Ievel of the people has been increased with growing IT cutting-edge technology. There is a trend to combine these achievements with information-technology, ubiquitous technology, and mobile technology in the field of transportation. Along with this trend, a PDA-based traffic accident investigation device was developed. This paper established the evaluation method of feasibility test on the PDA device, and performed qualitative and quantitative evaluation as compared with the current practice (manual investigation). Test results showed that traffic accident investigation using the PDA device was faster and more convenient than manual investigation. It is expected that the reliability of accident investigation will be improved by applying this tool with minor modifications.

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A Qualitative Analysis of Construction Projects From Supply Chain Management Perspective

  • Min Jung-Ung
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.1 s.17
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    • pp.80-87
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    • 2004
  • This paper presents an analysis of construction project management from supply chain management perspective to gain insight from all constituents and to identify areas of improvement. In order to suggest opportunities for improvement, interviews with the members of a typical urban office building project in US were held. Based on that, a qualitative analysis of construction projects is presented. Focusing on electrical and mechanical sub-systems, this study illustrates the roles of subcontractors, suppliers, distributors, and manufacturing representatives as well as the complexity that a general contractor fares in managing its supply chain. The author$^{\circ}\phi$s recommendations are focused on process restructuring and automation, which include some quantifiable performance measures, incentives, and their alignment with each other

The Evaluation of Physical Environmental Factors in Urban Parks for Healthy City - Focus on Seoul - (건강증진을 위한 도시공원의 물리적 환경요소 평가 - 서울시를 대상으로 -)

  • Chae, Jin-Hae;Kim, Won-Ju
    • Journal of the Korean Institute of Landscape Architecture
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    • v.48 no.4
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    • pp.29-40
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    • 2020
  • This study quantitatively and qualitatively analyzes the physical environment for health promotion in urban parks by indicators that were selected in consideration of overseas cases and previous studies. To evenly distribute the areas to be evaluated by region, Seodaemun Independence Park, Hongneung Park, Gocheok Park, Sillim Park, Cheongdam Park, Gaepo Park, and Sungin Park were selected among the old neighborhood parks already established in Seoul. The evaluation indicators consist of quantitative indicators (12 factors classified into the three categories of the surrounding environment, the park characteristics, and the park facilities) and qualitative indicators (14 factors classified according to the five categories of accessibility, safety, convenience, activities, and amenities). These indicators were selected after conducting advisory meetings with experts in the field. The physical environment perception factors were evaluated by experts and investigators by field inspections and were rated on a three-point scale (high, medium, low). According to the results of the analysis, first, not only were exercise facilities and trails, but also various factors which support health activities, such as rest areas, leisure spots, and cultural facilities, as well as accessibility, cleanliness, and drinking water facilities are important indicators for health promotion. Second, even if the requirements are met for quantitative factors, several inconveniences hinder the actual implementation or use in the qualitative evaluation. Thus, both quantitative and qualitative evaluations must be simultaneously performed for the proper judging of the physical environment of a park. Third, upon conducting a qualitative evaluation of the physical environmental factors, score differences depended on the evaluated categories in each park. These differences show that indirect indicators, such as accessibility, safety, and facility convenience are insufficiently equipped compared to direct indicators, such as activity, which includes exercise facilities and fitness centers for health promotion. As the utilization rate of parks is increasing due to COVID-19, more efforts should be made to improve park services in the post-corona era. To promote such services, it is necessary to regularly evaluate parks based on both quantitative and qualitative indicators and to contemplate services not only through direct factors but also indirect factors and security measures.

An Analysis of Influencing Factors to Pedestrian Quality of Service by Utilizing Analytic Hierarchy Process (계층분석법(AHP)을 이용한 보행자 서비스 질 영향인자 분석)

  • Kim, Tae-Ho;Jin, Jang-Won;Bae, Gi-Mok
    • International Journal of Highway Engineering
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    • v.10 no.3
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    • pp.69-77
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    • 2008
  • This article proposes new method for estimating pedestrian quality of service(QOS) that is useful to changing pedestrian environment by examining pedestrian quality of service as well as developing new method that integrate qualitative variables into the estimating indicators for the pedestrian movement right. Based on survey questionnaire addressed to experts group, the obtained data for the indicators were analyzed through Analytic Hierarchy Process(AHP). The results show that pedestrian traffic flow(quantitative figure: 52%), sidewalk geometric(quantitative figure: 16%), sidewalk usage behavior(qualitative figure: 11%) in commercial and business zone pointed out the importance of quantitative indicators such as pedestrian traffic flow, and sidewalk geometric. In addition, the results also show that pedestrian traffic flow(quantitative figure: 30%), sidewalk geometric(quantitative figure : 22%), sidewalk usage behavior(qualitative figure: 20%) indicate the significance of qualitative indicators such as pedestrian's sidewalk usage.

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환형 전자 빔에 인가된 나선형 자기장의 diocotron instability 안정 효과에 대한 2차원 PIC 시뮬레이션

  • Jo, Yeong-Hyeon;Lee, Jeong-Yeol;Kim, Jin-Seok;Heo, Min-Yeong;Lee, Yun-Ho;Lee, Hae-Jun
    • Proceedings of the Korean Vacuum Society Conference
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    • 2016.02a
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    • pp.227.2-227.2
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    • 2016
  • 환형 전자 빔이 진행됨에 따라 표면파의 전단 유동에 의해 발생 및 진행되는 diocotron instability(다이오코트론 불안정성)를 안정시키기 위해, 나선형 자기장이 인가된 상황을 2차원 PIC 시뮬레이션을 통해 구현하고 그 효과에 대한 조사가 수행되었다. 나선형 자기장은 2차원 단면 상에서 회전하는 자기장으로 표현되었고, 이에 대해서 자기장이 회전하는 각도와 회전 주기, 회전 방향을 변수로 하여 그 효과를 나타내었다. 결과적으로, 자기장이 회전 하는 방향과 전자 빔이 회전하는 방향이 반대가 되었을 때, diocotron instability가 진정되는 효과를 얻었으며 이는 불안정성의 근원인 전단 유동을 완화시킴으로써 얻어진 결과임이 확인되었다. 이 때, 동반되는 밀도 분산 현상에 대해서도 고려가 되었고, 결론적으로 인가되는 나선형 자기장에 대하여 가장 적절한 조건에 대한 조사가 수행되었다.

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