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A study on the assessment of wildland fire hazard through statistic examination and calorie analysis according to the geographical distribution of vegetation (통계적 고찰과 수목분포에 따른 열량분석을 통한 산림화재 위험성 평가에 관한 연구)

  • 김광일;김동현
    • Fire Science and Engineering
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    • v.14 no.3
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    • pp.27-32
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    • 2000
  • The assessment of wildland fire hazard is the first priority to be considered in the prevention, extinction and control of wildland fire. For the standard to measure wildland fire hazard, the wildland fire Warning System is currently being used in Korea which computes the wildland fire occurrence hazard index through a stick weight to moisture conversion formula. It shows the risk of fuel substance being exposed to fire by meteorological factors. For a comprehensive assessment of wildland fire hazards by area, the major factors'hazards need to be measured and the assessment of wildland fire needs to be conducted through historical statistic examination. Therefore, the wildland (ire outbreak frequency and its seriousness of damage are analyzed through historical statistic examination to conduct the assessment of a wildland fire hazard, and then the calorific value of a forest is analyzed through differential scanning calorimeter measurement which assesses the comparative calorific hazard according to the geographical distribution of vegetation.

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The Assessment and Restoration Plan for Fragmented Points of Mountain Range in Daejeon (대전광역시 산줄기 단절지점 평가 및 복원방안)

  • Cho, Hyun-Ju;Lee, Eun-Jae
    • Journal of Korean Society of Forest Science
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    • v.104 no.4
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    • pp.622-631
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    • 2015
  • This study was conducted to clarify the distribution and fragmented points of mountain range and to select priority points for restoration by assessment in Daejeon. There were ten Semaek of mountain extended from three Jimaek in Daejeon. As a result of overlapping the main mountain ridge with a network of roads, twelve points out of total thirty-one fragmented points were chosen as practical points for restoration. We developed index and model to assess twelve practical points for restoration. All points were classified into three grades, four points of grade I, five points of grade II and three points of grade III. From this study, we proposed differentiated restoration plan for each grade. Further studies on development of more objective assessment and detailed methodology should be needed to prepare effective restoration plan.

The Development of Social Inclusion.Exclusion Indicators - Focused on the Permanent Rental Apartment Dwellers - (사회적 통합.배제 지표 개발을 위한 연구 - 영구임대아파트 거주자를 중심으로 -)

  • Kim, Mi-Hee;Lee, Min-A;Noh, Se-Hee
    • Journal of the Korean housing association
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    • v.19 no.6
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    • pp.95-104
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    • 2008
  • This study was to develop the indicators for understanding social inclusion exclusion of the dwellers living in permanent rental apartment, and to present a important base about priority order of national housing policy for social inclusion. The ultimate purpose of this study was to provide basic information for the development of permanent rental apartment renewal techniques. The first phase of the study was to review of the social inclusion exclusion indicators mentioned in the literature. The indicators of EU (2001, 2006), KIHASA (2005), and Jehoel-Gijsbers & Brooman (2007), which were applied in many studies about social inclusion, or included various items about dwellers' subjective attitudes, were selected to construct the framework for the study. On the basis of 3 kinds of indicators at the above, the dimensions of social inclusion exclusion were categorized as material deprivation and access to social rights in an economicstructural exclusion view, and social participation and cultural normative accommodations in a socio-cultural exclusion view. And then, the domains of social inclusion exclusion were decided as follows: income, employment, education service, housing, health, family networks and social networks. The detail contents of indicators were adopted from the prior studies as many as possible, and the dwellers' subjective attitudes and housing domains were intensified with reference to UN housing rights and the study of "residents' satisfaction of housing facilities living in permanent rental housing". The developed indicators were modified through the advisory committee that consist of the specialists from the various fields of studies. The final indicators that were overlapped or not able to be measured were eliminated, and added, in a housing domain, the standards of convenient facilities, the management condition, safety, location, crime and etc. in the apartment complex, which were required to complement in the advisory committee.

Human Risk Assessment of Perchloroethylene Considering Multi-media Exposure (다매체 노출을 고려한 Perchloroethylene의 인체위해성평가연구)

  • Seo, Jungkwan;Kim, Taksoo;Jo, Areum;Kim, Pilje;Choi, Kyunghee
    • Journal of Environmental Health Sciences
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    • v.40 no.5
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    • pp.397-406
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    • 2014
  • Objectives: Perchloroethylene (PCE) is a volatile chemical widely used as a solvent in the dry-cleaning and textile processing industries. It was evaluated as Group 2 "probably carcinogenic to humans" by the Integrated Risk Information System (IRIS) of the United State Environmental Protection Agency (U.S. EPA) in 2012. In order to provide a scientific basis for establishing risk management measures for chemicals on the national priority substances list, aggregate risk assessment was conducted for PCE, included in the top-10 substances. Methods: We conducted the investigation and monitoring of PCE exposure (e.g., exposure scenario, detection levels, and exposure factors, etc.) and assessed its multi-media (e.g., outdoor air, indoor air, and ground water) exposure risk with a deterministic and probabilistic approach. Results: In human risk assessment (HRA), the level of human exposure was higher in the younger age group. The exposure level through inhalation at home was the highest among the exposure routes. Outdoor air or uptake of drinking water represented less than 1% of total contributions to PCE exposure. These findings suggested that the level of risk was negligible since the Hazard Index (HI) induced by HRA was below one among all age groups, with a maximum HI value of 0.17 when reasonable maximum exposure was applied. Conclusion: In conclusion, it was suggested that despite low exposure risk, further studies are needed considering main sources, including occupational exposure.

Fuzzy-AHP-Based Technology Evaluation Model for venture firms (Fuzzy-AHP에 기반을 둔 벤처기업의 기술력 평가 모델)

  • Joun, Hyang-Soon;Lee, Sang-Yong
    • Journal of Digital Convergence
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    • v.14 no.7
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    • pp.363-371
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    • 2016
  • Technology evaluation for technology innovation of venture firms should take the rapidly changing corporate environment, the ambiguity of language used in evaluation, and the inaccuracy of evaluation index into consideration. In this paper, targeting the absorptive capacity and technological entrepreneurship which are typical evaluation factors of venture firms, an ACTEM model to calculate the importance, priority, and dynamic capability of factors, applying Fuzzy-AHP was proposed. The fuzzy theory was introduced to compensate for the ambiguity of cognitive judgments when calculating weighted values for the factors that made up an assessment scale. An assessment criteria framework for absorptive capacity, technological entrepreneurship, and dynamic capability, which were not considered in previous studies on the evaluation and measurement of technological prowess, so that the users could have a realistic alternative to choose. The study compared the ACTEM model with the old AHP assessment method and found that "knowledge acquisition" and "producing ability" were the highest in absorptive capacity and technological entrepreneurship, respectively, thus demonstrating its validity.

Sustainable Water Resources Planning to Prevent Streamflow Depletion in an Urban Watershed: 2. Application (도시유역의 건천화 방지를 위한 지속가능한 수자원 계획: 2. 적용)

  • Lee, Kil-Seong;Cung, Eun-Sung;Shin, Mun-Joo;Kim, Young-Oh
    • Journal of Korea Water Resources Association
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    • v.39 no.11 s.172
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    • pp.947-960
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    • 2006
  • This study shows the application of sustainable water resource planning procedure developed in the previous paper. Its goal is to prevent the streamflow depletion in upstream watershed of the Anyangcheon which is a typical urban stream. The pressure-state-response model which is the framework to reflect the sustainability was applied. The composite programming which is the multilevel multicriteria decision making technique is also used in the calculation of state and evaluation index. The feasible alternatives were proposed and hydrologically analyzed by SWAT(Soil and Water Assessment Tool) and the priority ranking of alternatives were proposed based on the results of SWAT.

A Study on the Design Evaluation Indicators and Improvements of Urban Public Space (도시 공공공간 디자인 평가 지표 도출 및 개선 방안 연구)

  • Lee, Hoon-Gill;Lee, Joo-Hyung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.11
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    • pp.8021-8029
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    • 2015
  • This study obtains design assessment indexes that should be considered in order to improvements of the public space was to analysis the importance in the public officials/academics and practitioners side. Obtained assessment topics in accordance with characteristic of public space through previous research to them and after a detailed selection indicators was so lead through the FGI. Derived surface was subjected to the significance analysis AHP through the survey expert. For this study, the importance of the public space are working professionals usability, publicness, environment, connectivity, identity, spatiality the order, public officials/academics usability, environment, connectivity, identity, spatiality, publicness the order. In addition, professionals working in the comprehensive analysis of the most important priority was to recognize safety, public officials/academics of the most important element appeared to have cleanliness. The results obtained in this study will be used as an index that can be used in planning and evaluation for consideration of the next improvement of public space.

Development of Smart City IoT Data Quality Indicators and Prioritization Focusing on Structured Sensing Data (스마트시티 IoT 품질 지표 개발 및 우선순위 도출)

  • Yang, Hyun-Mo;Han, Kyu-Bo;Lee, Jung Hoon
    • The Journal of Bigdata
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    • v.6 no.1
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    • pp.161-178
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    • 2021
  • The importance of 'Big Data' is increasing to the point that it is likened to '21st century crude oil'. For smart city IoT data, attention should be paid to quality control as the quality of data is associated with the quality of public services. However, data quality indicators presented through ISO/IEC organizations and domestic/foreign organizations are limited to the 'User' perspective. To complement these limitations, the study derives supplier-centric indicators and their priorities. After deriving 3 categories and 13 indicators of supplier-oriented smart city IoT data quality evaluation indicators, we derived the priority of indicator categories and data quality indicators through AHP analysis and investigated the feasibility of each indicator. The study can contribute to improving sensor data quality by presenting the basic requirements that data should have to individuals or companies performing the task. Furthermore, data quality control can be performed based on indicator priorities to provide improvements in quality control task efficiency.

A Survey on the Level and Related Factors of Health Literacy in Korean People (우리나라 국민의 건강정보이해력 수준과 사회경제적 특성 및 건강행태와의 관계)

  • Kim, Junho;Park, Chong Yon;Kang, Shinhee
    • Health Policy and Management
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    • v.29 no.2
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    • pp.146-159
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    • 2019
  • Background: The purpose of this study is to measure the Korean health literacy level and to analyse its gaps according to the factors of socioeconomic and health status and health behaviors. Based on this, policy implications were reviewed to improve the understandability on health information and to reduce the gap among socioeconomic groups. Methods: HLS-EU-Q47, a tool developed by the European Health Literacy Project, was used to conduct a face-to-face interview survey on the health literacy for the samples from general population. Results: The public general health literacy (HL) index was 34.5 out of 50. HL is consisted of three sub-dimensions: healthcare (HC-HL), disease prevention (DP-HL), and health promotion (HP-HL). And a HL analysis found scores of 34.7 points for HC-HL, 35.4 points for DP-HL, and 33.3 points for HP-HL. The level of all HL was different according to socioeconomic characteristics and health behavior. Conclusion: Based on the results of this study, more research activities on health-related literacy need to be conducted, and monitoring system on the HL level needs to be developed and implemented. In addition, a program to improve HL levels needs to be developed in order to strengthen the basis for a more sustainable healthcare system as an agenda with national health policy priority.

Real-time monitoring sensor displacement for illicit discharge of wastewater: identification of hotspot using the self-organizing maps (SOMs) (폐수의 무단 방류 모니터링을 위한 센서배치 우선지역 결정: 자기조직화지도 인공신경망의 적용)

  • Nam, Seong-Nam;Lee, Sunghoon;Kim, Jungryul;Lee, Jaehyun;Oh, Jeill
    • Journal of Korean Society of Water and Wastewater
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    • v.33 no.2
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    • pp.151-158
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    • 2019
  • Objectives of this study were to identify the hotspot for displacement of the on-line water quality sensors, in order to detect illicit discharge of untreated wastewater. A total of twenty-six water quality parameters were measured in sewer networks of the industrial complex located in Daejeon city as a test-bed site of this study. For the water qualities measured on a daily basis by 2-hour interval, the self-organizing maps(SOMs), one of the artificial neural networks(ANNs), were applied to classify the catchments to the clusters in accordance with patterns of water qualities discharged, and to determine the hotspot for priority sensor allocation in the study. The results revealed that the catchments were classified into four clusters in terms of extent of water qualities, in which the grouping were validated by the Euclidean distance and Davies-Bouldin index. Of the on-line sensors, total organic carbon(TOC) sensor, selected to be suitable for organic pollutants monitoring, would be effective to be allocated in D and a part of E catchments. Pb sensor, of heavy metals, would be suitable to be displaced in A and a part of B catchments.