• Title/Summary/Keyword: 공공IT서비스

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Evaluation Scheme of the GPS Positional Accuracy for Dynamic Bus Route Information using SMB(Single Buffering Method) (단일 버퍼링 기법을 이용한 동적 버스 노선 정보의 GPS 위치 정확도 평가 방안)

  • Park, Hong-Gi;Joo, Yong-Jin
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.29 no.6
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    • pp.677-685
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    • 2011
  • In order to enhance public transportation and to maintain information credibility, improvement of accuracy regarding route and positional information of public transport is very significant. There have been a variety of methods using GPS to measure accuracy of location-based services. However, the researches of evaluation regarding kinematic position of linear objects measured by vehicle/kinematic GPS are still insufficient. That's why our paper aims to suggest method of evaluation accuracy on a real-time bus route surveyed by GPS by SBM(Single Buffering Method). To make it come true, we compared the findings on the static and dynamic positioning by using PP(Point Positioning), DGPS and GPS/INS integrated systems and analyzed the accuracy and error effects among them, focusing on Anyang city. Consequently, we can find out that in case of P.P. comparing positioning accuracy between RTK DGPS and GPS/INS, both of them have survey result within a margin of error of 5m. More importantly, we can evaluate positional accuracy of each GPS system based on the work provision of a public survey such as error for P.P.(14.5m, 18.1m), DGPS(16.9m, 18.5m), and GPS/INS(18.4m, 18.5m). We are expecting that proposed method in our paper can be utilized in a wide range of categories such as feasibility testing of GPS field survey and high accuracy of positioning for Bus Information System.

Simulation of Various Baffle Types in a Constructed Wetland Sedimentation Tank using CFD (CFD를 이용한 Hybrid 인공습지의 초기침강지 저류판 구조 모의)

  • Noh, Taegyun;Jeon, Jechan;Kim, Lee-Hyung
    • Journal of Wetlands Research
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    • v.18 no.3
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    • pp.324-329
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    • 2016
  • Constructed wetlands are widely applied in urban and rural areas for various purposes such as pollutants reduction, acquisition of eco-spaces and habitats, flooding reduction, acquisition of water resources and environmental education. Since the design of constructed wetlands utilizes ecosystems, special consideration must be given to ecological mechanisms, environmental mechanisms and hydrological mechanisms. To ensure the sustainable functionality of constructed wetlands, it is necessary to achieve stable flow rate and velocity, and remove sediments to ensure sufficient space for detention. To enhance the efficiency of constructed wetland sedimentation basins, this study determined the optimal position for baffle installation, and applied Computational Fluid Dynamics (CFD) to the cross-sectional design of wetlands. CFD analysis revealed that the decrease in flow velocity with baffle installation enhanced the efficiency of sedimentation of particulate matters. Vertical baffles had higher sedimentation efficiency than those with an inclined angle. When vertical baffles were installed in the sedimentation basin of a hybrid constructed wetland to reduce non-point source pollutants in urban areas, the average flow velocity within the basin decreased by 10~30%, while the sedimentation efficiency improved by 1.3~1.5 times. The application of CFD to constructed wetlands is expected to improve the cost efficiency of designing hybrid constructed wetlands with high removal efficiency.

Developing the assessment model for technology selection: Based on the BSC and ANP (기술 선정을 위한 평가모델 개발: BSC와 ANP를 중심으로)

  • Hong, Jongyi;Shin, Kyungchul
    • Journal of Korea Society of Industrial Information Systems
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    • v.17 no.6
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    • pp.83-93
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    • 2012
  • Technology assessment is one of the most challenging decision making areas that companies face nowadays. According to increase the importance of technology selection, it has been a main issue for the decision makers whether an appropriate technology selection will be successful or not. Therefore, in this study, a technology assessment model using BSC and ANP method was proposed. The technology assessment model consist of three phase. In first phase, various factors, that have an influence on technology assessment, were taken into consideration. Based on the extracted BSC process, the strategies and critical success factors and performance measures were extracted for selecting the technology. And in second phase, the ANP method used to integrate opinions of experts' and evaluate technology alternatives controls tangible and intangible criteria, allows for more complex inter-relationship among decision levels and deals with ambiguity involved in the assessment process. In the lase phase, according to the result of before phase, decision makers select the appropriate technology. Furthermore, the proposed model was applied in the public service for validating the feasibility of the assessment model. The criteria and proposed performance measures informs the method and focus areas for developing the technology. Furthermore, the assessment model can be applied to the other area, and give the objectivity and rationality.

The effect that social welfare officials' awareness of welfare has on their sense of duty value and duty efficiency (사회복지공무원의 복지의식이 직무가치관과 직무효과성에 미치는 영향)

  • Cho, Eoun-Suk;Kim, Chong-Tae
    • Journal of Digital Convergence
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    • v.11 no.11
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    • pp.133-141
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    • 2013
  • The objective of this study is to empirically examine the effect that social welfare officials' awareness of welfare, who play the core role in delivering public welfare service, has on their sense of duty value and duty efficiency. The implications this study suggests are as follows; First, this study has a meaning in that it empirically proved the social welfare officials' awareness level of welfare. Second, this study provided the specific theoretical basis for the approaches and alternatives for the need to improve social welfare officials' awareness of welfare and operate the desirable welfare policy and system, by examining the effect that social welfare officials' awareness of welfare has on their sense of duty value and duty efficiency. Third, we can find the political implication from this study that welfare policy should be established and operated toward the direction of enhancing equalization effect of welfare system, and minimizing free ride or hampering the will to work, if we intend to improve social welfare officials' awareness of welfare. Fourth, this study presented the need to improve the work system of social welfare officials, through the fact that the shorter their work period is, the lower sense of welfare, duty value and duty efficiency they have. Based on the study results above, we suggest the activation of studies on social welfare officials' awareness of welfare, the need to regularly educate social welfare officials about welfare policy, system and value, the need to improve social welfare officials' positive awareness of welfare and their duty performance through deciding welfare policy toward the direction of enhancing social equality and equalization, and the need to improve social welfare officials' work system.

A Study on Feasible 3D Object Model Generation Plan Based on Utilization, Demand, and Generation Cost (입체모형 활용 현황, 수요 및 구축 비용을 고려한 실현 가능한 3차원 입체모형 구축 방안 연구)

  • Kim, Min-Soo;Park, Doo-Youl
    • Journal of Cadastre & Land InformatiX
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    • v.50 no.1
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    • pp.215-229
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    • 2020
  • In response to the recent 4th industrial revolution, the demand for 3D object models in the latest fields of digital twin, autonomous driving, and VR/AR, as well as the existing fields such as city, construction, transportation, and energy has increased significantly. It is expected that the demand for 3D object models with various precision from LOD1 to LOD4 will increase more and more in various industry fields. However, the Ministry of Land, Infrastructure and Transport, and the local government and the private sector have partially built 3D object models of different precisions for some specific regions because of the huge cost. Therefore, this study proposes a feasible plan that can solve the cost problem in generating 3D object models for the whole territory. For our purpose, we first analyzed usage, demand, generation technology and generation cost for 3D object models. Afterwards, we proposed LOD3 model generation plan for all territory using automatic 3D object model generation technology based on image matching. Additionally, we supplemented the proposed plan by using LOD4 generation plan for landmarks and LOD2 generation plan non-urban area. In the near future, we expect this would be a great help in establishing a feasible and effective 3D object model generation plan for the whole country.

Informetric Analysis of Research Trends in The Journal of Korean Biblio Society for Library and Information Science (계량정보학적 분석을 통한 「한국비블리아학회지」 최근 연구동향 분석 - 한국문헌정보학회지·정보관리학회지와 비교하여 -)

  • Seo, Eun-Gyoung;Lee, Won-Kyung;Park, Eun-Kyung;Lee, Ock-Seong
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.26 no.3
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    • pp.315-343
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    • 2015
  • This study reviews articles in published in the The Journal of Korean Biblio Society for Library and Information Science (JKBSLIS) over 5 years from 2010 to 2014 for identifying the academic characteristics and the recent research trends of the JKBSLIS. 300 articles of JKBSLIS are analyzed in terms of bibliometric factors, research theme, methodology, author keywords, and intellectual structure comparing with 344 articles of the Journal of Korean Society for Library and Information Science (JKSLIS) and 283 articles of the Journal of Korean Society for Information Management (JKOSIM). In results, there is no differences between JKBSLIS and the other two journals, JKSLIS and JKOSIM regards on bibliometric factors. The domain research areas in the JKBSLIS are 'Information Services', 'Library Management' and 'Reading Education'. It is also found that the most popular methods are 'survey' and 'case study' and that the main research areas in the shown intellectual structure are 'public library & reading', 'academic library & collection management', and 'school library & information literacy education'.

Development of Site Evaluation Criteria for Woodland Burial Grounds (수목장림 입지 평가기준 설정 연구)

  • Moon, Chang Soon;Lee, ShiYoung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.47 no.3
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    • pp.22-30
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    • 2019
  • The demand for National Woodland Burial Grounds is expected to increase as interest in natural burial, including woodland burial, is increasing. This study was performed to provide evaluation criteria applying weighting factors to the evaluation for location selection. Through literature review, location selection evaluation factors for forest facilities, similar to forest welfare facilities, were reviewed and analyzed. As a result of the analysis, 74 preliminary evaluation criteria were selected. Based on the results, three expert groups (public servants in central and local governments and other public agencies in charge of forest welfare facility, related field researchers, and civil experts) reviewed the preliminary evaluation factors. Evaluation factors were classified into two categories, 6 sub-categories, and 22 segments. The selected evaluation factors were layered for the second preference survey. They were classified into Forest Environment and Human Environment, and those categories were further classified into three categories. Then they were further classified into segments. After segmentation, the experts who participated in the first survey checked the differences in the significance of the layered factors by utilizing AHP. The site evaluation criteria table was prepared using the evaluation criteria and the significance of each layer. In order to apply it to the candidate sites, 10 sites including the existing National Woodland Burial Grounds and 9 candidate sites considered in the previous studies were compared and analyzed including Ulju County Ulsan City, Suncheon City Jeollanam-do and Janggun-myeon Sejeong City.

A Study on the Actual Condition of the Fourth Industrial Revolution and Application of Landscape Architecture (4차 산업혁명의 실태와 조경학 분야 적용방안 연구)

  • Lee, Jong-Sung
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.1
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    • pp.68-75
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    • 2019
  • This study aims to look at the application methods of landscape architecture in response to the 4th Industrial Revolution. The results of the analysis of trends in the 4th Industrial Revolution and the subsequent search for application methods to the field of landscape architecture are as follows. First, the 4th Industrial Revolution means innovative change based on digital technology and seeks to create value based on intelligent information technology, and continuous growth is being made through innovation. This requires expertise to collect large amounts of information and creatively rework it, and a strategy to flexibly cope with changes in the times. Second, the status of technological use in response to the 4th Industrial Revolution in the field of landscape architecture is generalizing the establishment of precise analysis results such as survey technology and global mapping using drones, three-dimensional design simulation, and VR. In the field of traditional landscape architecture, efforts are made to obtain accurate fact-finding data on landscape site components. Third, the application methods in the field of landscape science according to the 4th Industrial Revolution in the future are required to supply precision technology and supply programs in the technology sector, and to provide a shared platform. In addition, a systemically standardized process will need to be established for this. In addition, educational efforts should be continued to professional manpower training and provide economic support for the development of technologies.

A Study on the Evaluation and Improvement of Accessibility in Korean Online e-Journal (국내 온라인 학술지의 접근성 평가 및 개선에 관한 연구)

  • Boseong, Jang
    • Journal of the Korean Society for Library and Information Science
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    • v.56 no.4
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    • pp.161-180
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    • 2022
  • This study aims to improve the accessibility of websites that can search for online e-journals and check the original text, and the accessibility of web contents in the form of article papers. In order to publish online e-journals in Korea, article contribution management system is used, and services are provided through public or private academic DB companies. There was no content related to accessibility in the publishing and editing stage of online e-journals. In the case of foreign countries, objective to comply with Level AA of WCAG 2.1 to improve accessibility of websites and web content. In addition, the level of accessibility of academic journals is guided through VPAT. In order to improve access to web content in online journals, Accessibility matters are added to the academic society's editorial and publication regulations. Accessibility education should be provided to journal editors. Accessibility checklists should be developed and researchers should verify themselves. To improve the accessibility of online e-journals to websites, For equal use, various convenience functions should be provided when using the website. It guides the accessibility function to the article contribution management system. Each academic and academic DB company should be required to submit a Korean VPAT.

Study on User Benefits for Activating Lifestyle Sports (생활체육 활성화를 위한 이용자 편익에 관한 연구)

  • Choi, Seung-Jae
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.2
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    • pp.207-217
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    • 2019
  • The purpose of this study is to examine the physical and psychological effects of lifelong physical activity and the role of leader capacity, to provide practical basic data on intangible benefits and to suggest ways to activate the value of lifelong physical education. This study was conducted from September 1, 2018 to September 30, 2018, with a total of 206 questionnaires centering on men and women participating in sports in Jeollanam do. The two-step approach proposed by Anderson & Gerbing (1988) was used to examine the structural relationships between physical benefits, social benefits, mental benefits, self efficacy benefits, leisure cultural benefits, physical effects, mental effects, Respectively. The conclusions of this study are summarized as follows. First, physical and leisure cultural benefits have a positive(+) direct effect on leader capacity. Second, self-efficacy benefits, physical benefits, and leisure cultural benefits have positive direct effects on physical effects. Third, self-efficacy and leisure culture benefits have a direct positive effect on mental effects. Fourth, leadership competence plays a mediating role in the relationship between leisure cultural benefits and physical effects. In addition, it has a mediating role in the relationship between leisure cultural benefits and mental effects. In order to maximize the quantitative expansion and qualitative improvement of living sports and to enhance intangible value of participants in sports for all, the private capital investment such as the training of competent leaders, the development of various programs, and the investment support in the public sector, We hope that the role of the new welfare service delivery system shared with welfare will be provided.