• Title/Summary/Keyword: 전공

Search Result 8,096, Processing Time 0.035 seconds

Methodology for Estimating Highway Traffic Performance Based on Origin/Destination Traffic Volume (기종점통행량(O/D) 기반의 고속도로 통행실적 산정 방법론 연구)

  • Howon Lee;Jungyeol Hong;Yoonhyuk Choi
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.23 no.2
    • /
    • pp.119-131
    • /
    • 2024
  • Understanding accurate traffic performance is crucial for ensuring efficient highway operation and providing a sustainable mobility environment. On the other hand, an immediate and precise estimation of highway traffic performance faces challenges because of infrastructure and technological constraints, data processing complexities, and limitations in using integrated big data. This paper introduces a framework for estimating traffic performance by analyzing real-time data sourced from toll collection systems and dedicated short-range communications used on highways. In particular, this study addresses the data errors arising from segmented information in data, influencing the individual travel trajectories of vehicles and establishing a more reliable Origin-Destination (OD) framework. The study revealed the necessity of trip linkage for accurate estimations when consecutive segments of individual vehicle travel within the OD occur within a 20-minute window. By linking these trip ODs, the daily average highway traffic performance for South Korea was estimated to be248,624 thousand vehicle kilometers per day. This value shows an increase of approximately 458 thousand vehicle kilometers per day compared to the 248,166 thousand vehicle kilometers per day reported in the highway operations manual. This outcome highlights the potential for supplementing previously omitted traffic performance data through the methodology proposed in this study.

A Study on Efficient Sidewalk Green Space Development for Improving Urban Thermal Environments and Enhancing Pedestrian Comfort - Focused on the Derivation of Parameters for Design, and Proposing Methods for Green Space Creation - (도시열환경 개선 및 보행자 열 쾌적성 증대를 위한 효율적 가로녹지 조성방안 연구 - 계획 및 설계를 위한 매개변수 도출과 녹지조성 방법 제안을 중심으로 -)

  • Park, Ju-Hyeon;Eum, Jeong-Hee
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.52 no.2
    • /
    • pp.21-38
    • /
    • 2024
  • This study aims to establish an efficient street green area to improve the urban thermal environment and enhance pedestrian thermal comfort. Specifically, This study identified parameters applicable to green space planning and design, analyzed thermal environment mitigation mechanisms for each parameter, and, based on these findings, proposed methods for tree species selection and planting in green space planning and design. To achieve this, 61 papers were selected through a four-stage process from both domestic and foreign sources. The selected papers were analyzed, and the following main results were derived: In open street canyons with high stress levels due to low aspect ratios and high sky view factors(SVF), broadleaf trees with wide crown widths, low trunk heights, high leaf area index(LAI), and high crown heights were found effective in reducing heat, thereby increasing the amount and quality of shade. In contrast, in deep and narrow street canyons with relatively low heat stress due to high aspect ratios and low SVF, broad-leaved trees with narrow crown widths, high trunks, low crown heights, and low LAI were effective in reducing heat by enhancing ventilation. This study can serve as fundamental data for establishing standards for street green spaces to improve the thermal environment of street canyons and enhance thermal comfort of pedestrians. Additionally, it can be valuable when selecting the location and prioritizing street green spaces. Moreover, it is anticipated to be a foundational resource for creating guidelines for green space planning and design in response to climate change.

Progress in Nanofiltration-Based Capacitive Deionization (나노여과 기반 용량성 탈이온화의 진전)

  • Jeong Hwan Shim;Rajkumar Patel
    • Membrane Journal
    • /
    • v.34 no.2
    • /
    • pp.87-95
    • /
    • 2024
  • Recent studies explore a wide array of desalination and water treatment methods, encompassing membrane processes such as reverse osmosis (RO), nanofiltration (NF), and electrodialysis (ED) to advanced capacitive deionization (CDI) and its membrane variant (MCDI). Comparative analyses reveal ED's cost-effectiveness in low-salinity scenarios, while hybrid systems (NF-MCDI, RO-NF-MCDI) show improved salt removal and energy efficiency. Novel ion separation methods (NF-CDI, NF-FCDI) offer enhanced efficacy and energy savings. These studies also highlight the efficiency of these methods in treating complex wastewater specific to various industries. Environmental impact assessments emphasize the need for sustainability in system selection. Additionally, the integration of microfabricated sensors into membranes allows real-time monitoring, advancing technology development. These studies underscore the variety and promise of emerging desalination and water treatment technologies. They provide valuable insights for enhancing efficiency, minimizing energy usage, tackling industry-specific issues, and innovating to surpass conventional method limitations. The future of sustainable water treatment appears bright, with continual advancements focused on improving efficiency, minimizing environmental impact, and ensuring adaptability across diverse applications.

A Study on Building Libraries and Librarian Archive (도서관 사서 아카이브 구축 방안 연구)

  • Kang, Min-ji;Rieh, Hae-young
    • The Korean Journal of Archival Studies
    • /
    • no.80
    • /
    • pp.89-128
    • /
    • 2024
  • This study believed that records could help 'strengthen identity' and that job archives could help provide pride and identity in one's job by preserving the history and culture of it. This study investigated whether building a librarian archive could help preserve records related to librarians, share experiences and knowledge among librarians, and confirm the history and identity of oneself and the group. In-depth interviews were conducted with librarians to examine what records should be included and what records could help strengthen the librarian's identity. As a result of the interview, various records related to the work of librarians were identified, and records related to the history of librarians were also confirmed. It was found that historical events related to librarians and library services provided by previous generations of librarians will help strengthen the identity of librarians. Thus, the Librarian Archive can help librarians reflect on themselves as librarians and decide on their own direction. This study presented a plan to build a librarian archive as a participatory archive through cooperation between institutions and communities. In this study, it was expected that through building a librarian archive, it would be possible to strengthen the professional identity of librarians, share the history of librarians, create a collective intelligence platform, efficiently process work, and improve the social status of libraries and librarians.

Research on Bridge Maintenance Methods Using BIM Model and Augmented Reality (BIM 모델과 증강현실을 활용한 교량 유지관리방안 연구)

  • Choi, Woonggyu;Pa Pa Win Aung;Sanyukta Arvikar;Cha, Gichun;Park, Seunghee
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.44 no.1
    • /
    • pp.1-9
    • /
    • 2024
  • Bridges, which are construction structures, have increased from 584 to 38,405 since the 1970s. However, as the number of bridges increases, the number of bridges with a service life of more than 30 years increases to 21,737 (71%) by 2030, resulting in fatal accidents due to basic human resource maintenance of facilities. Accordingly, the importance of bridge safety inspection and maintenance measures is increasing, and the need for decision-making support for supervisors who manage multiple bridges is also required. Currently, the safety inspection and maintenance method of bridges is to write down damage, condition, location, and specifications on the exterior survey map by hand or to record them by taking pictures with a camera. However, errors in notation of damage or defects or mistakes by supervisors are possible, typos, etc. may reduce the reliability of the overall safety inspection and diagnosis. To improve this, this study visualizes damage data recorded in the BIM model in an AR environment and proposes a maintenance plan for bridges with a small number of people through maintenance decision-making support for supervisors.

A Study on the Effect of Public Libraries' ESG Management on Its Perception, User Satisfaction, and the User's Intention to Revisit (공공도서관의 ESG경영이 도서관 인식, 이용자 만족도 및 재이용 의도에 미치는 영향)

  • Mi Ok Jeong
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.58 no.1
    • /
    • pp.303-328
    • /
    • 2024
  • In this study, we designed and verified a research model in order to determine whether ESG management for public libraries affects the perception of libraries, user satisfaction, and the intention to revisit. A survey was conducted among the users of six public libraries in the Gyeonggi region and 25 libraries in Seoul, and 247 valid responses from the survey were analyzed. The analysis revealed that the environment and society factors of ESG management had a positive effect on the perception of libraries and user satisfaction. It also showed that the libraries' perception had a positive impact on user satisfaction and the intention to revisit, and user satisfaction showed a positive correlation for the intention to revisit. From the analysis, we can infer that the effects of ESG management were reflected in everyday life via public libraries as ESG management of the public libraries influenced the perception of libraries, user satisfaction, and the intention to revisit. We confirmed that users showed the intention to revisit if the library provides positive and sincere satisfaction through ESG management, due to public libraries having ethical and moral significance to users. We have also put forward practical marketing strategies and identified areas for enhancement that can prove beneficial to public libraries.

Parents' Perceptions of Cognitive Rehabilitation for Children With Developmental Disabilities: A Mixed-Method Approach of Phenomenological Methodology and Word Cloud Analysis (발달장애 아동 부모의 인지재활 경험에 대한 질적 연구: 워드 클라우드 분석과 현상학적 연구 방법 혼합설계)

  • Ju, Yu-Mi;Kim, Young-Geun;Lee, Hee-Ryoung;Hong, Seung-Pyo;Han, Dae-Sung
    • Therapeutic Science for Rehabilitation
    • /
    • v.13 no.1
    • /
    • pp.49-63
    • /
    • 2024
  • Objective : The purpose of this study was to investigate parental perspectives on cognitive rehabilitation using a combination of phenomenological research methodology and word cloud analysis. Methods : Interviews were conducted with five parents of children with developmental disabilities. Word cloud analysis was conducted using Python, and five researchers analyzed the meaning units and themes using phenomenological methods. Words with high frequency were considered as a heuristic tool. Results : A total of 43 meaning units and nine components related to the phenomenon of cognitive rehabilitation were derived, and three themes were finalized. The main themes encompassed the definition of cognitive rehabilitation, challenges associated with cognitive rehabilitation, and factors influencing the selection of a cognitive rehabilitation institute. Cognitive rehabilitation emerged as a treatment focused on improving learning, daily functioning, and cognitive abilities in children with developmental disabilities. The perceived issues with cognitive rehabilitation pertained to treatment methods, therapist expertise, and associated costs. In addition, parents highlighted the importance of therapist expertise, humane personality, and affordability of cost and schedule when choosing a cognitive rehabilitation institute. Conclusion : Parents expressed expectations for substantial improvements in their children's daily functioning through cognitive rehabilitation. However, challenges were identified in clinical practices. Going forward, we expect that cognitive rehabilitation will evolve into a better therapeutic support service addressing the concerns raised by parents.

Can ChatGPT Pass the National Korean Occupational Therapy Licensure Examination? (ChatGPT는 한국작업치료사면허시험에 합격할 수 있을까?)

  • Hong, Junhwa;Kim, Nayeon;Min, Hyemin;Yang, Hamin;Lee, Sihyun;Choi, Seojin;Park, Jin-Hyuck
    • Therapeutic Science for Rehabilitation
    • /
    • v.13 no.1
    • /
    • pp.65-74
    • /
    • 2024
  • Objective : This study assessed ChatGPT, an artificial intelligence system based on a large language model, for its ability to pass the National Korean Occupational Therapy Licensure Examination (NKOTLE). Methods : Using NKOTLE questions from 2018 to 2022, provided by the Korea Health and Medical Personnel Examination Institute, this study employed English prompts to determine the accuracy of ChatGPT in providing correct answers. Two researchers independently conducted the entire process, and the average accuracy of both researchers was used to determine whether ChatGPT passed over the 5-year period. The degree of agreement between ChatGPT answers of the two researchers was assessed. Results : ChatGPT passed the 2020 examination but failed to pass the other 4 years' examination. Specifically, its accuracy in questions related to medical regulations ranged from 25% to 57%, whereas its accuracy in other questions exceeded 60%. ChatGPT exhibited a strong agreement between researchers, except for medical regulation questions, and this agreement was significantly correlated with accuracy. Conclusion : There are still limitations to the application of ChatGPT to answer questions influenced by language or culture. Future studies should explore its potential as an educational tool for students majoring in occupational therapy through optimized prompts and continuous learning from the data.

A Study on the Improvement of School History Archives Supported by the Office of Education (교육청 지원 학교역사관 운영 개선 방안 연구)

  • Sujeong Kwon;Jihyun Kim
    • Journal of Korean Society of Archives and Records Management
    • /
    • v.24 no.2
    • /
    • pp.21-40
    • /
    • 2024
  • This study seeks to analyze the actual operation status of the school history archive, which collects, preserves, and utilizes school history records, and propose improvement strategies. The subjects of this study were divided into unit school history archives established in each school and integrated school history archives, which collect school history records under the jurisdiction of the Office of Education. The types and functions of school history records and school history archives were first identified, and the status of school history archives overseas was investigated. Afterward, interviews were conducted with six unit schools and five Offices of Education to examine the domestic status. The interview questionnaire was structured according to the following aspects: operation status, records and archives management, and archival information services. Based on this, the status and problems of the unit school type and integrated school history archives were identified, and improvement measures in terms of operation, record management, and record information service were proposed. In addition, comprehensive improvement strategies encompassing the unit school and integrated school archives were suggested. The results of this study can serve as useful material for operating and developing school history archives.

Effects of Cognitive Attention on Human Multitasking Behaviors (인지적 주의가 다중 작업 행위에 미치는 영향)

  • Minsoo Park
    • The Journal of the Convergence on Culture Technology
    • /
    • v.10 no.1
    • /
    • pp.501-506
    • /
    • 2024
  • Humans have been shown to engage in multitasking behavior when searching for information on two or more topics or searching an information system at the same time. When processing multiple information tasks, priorities must be established as there are cognitive and physical limitations in processing multiple information tasks at once. The level of cognitive attention involved in multitasking behavior can vary depending on the complexity and importance of the information task. The objectives of this study are to understand: (a) the relationship between attention and information task prioritization behavior when people interact with information retrieval systems to find information for multiple tasks; (b) The effect of the degree of attention on information task prioritization behavior when people interact with an IR system to find information for multiple tasks. A review of the relevant literature shows that when people interact with information retrieval systems to find information for multiple tasks, their level of attention affects how they prioritize multiple information tasks. It should be noticed that people pay more attention to things they find interesting or important. Human-centered system design based on a conceptual understanding of multitasking is discussed.