• Journal of Information Processing Systems
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• 제8권4호
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• pp.589-602
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• 2012

With the increasing demand for real time applications in the Wireless Senor Network (WSN), real time critical events anticipate an efficient quality-of-service (QoS) based routing for data delivery from the network infrastructure. Designing such QoS based routing protocol to meet the reliability and delay guarantee of critical events while preserving the energy efficiency is a challenging task. Considerable research has been focused on developing robust energy efficient QoS based routing protocols. In this paper, we present the state of the research by summarizing the work on QoS based routing protocols that has already been published and by highlighting the QoS issues that are being addressed. The performance comparison of QoS based routing protocols such as SAR, MMSPEED, MCMP, MCBR, and EQSR has also been analyzed using ns-2 for various parameters.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1999년도 추계학술대회논문집
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• pp.123-130
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• 1999

The bus as a feeder trip should supply equality service to the whole community. But in spite of the change of latent demand to the bus by the variety of regional structural change, the existing bus route can not supply effective feeder service. For cope with the latent demand to the bus, this study establish a concept that frame of the bus operation and management. This study tackled to evidence this fact by analyzing the bus transport problems in terms of the urban growth, and following issues were discussed: 1) the strategy for improvement of bus operation, 2) the land use control which is appropriate for the public transport network, 3) the economical range to justify the bus operation, 4) the allowance for the private transport mode. On the second part of this study, the difference on the bus operation was compared to determine the range within which the bus operation can be justified. This would provide the direction to improve the management for bus operation and fundamental information to develop the bus operation system.

• International Journal of Computer Science & Network Security
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• 제21권12호
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• pp.203-206
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• 2021

The article is devoted to the study of the problems of polygraphic research to obtain forensically significant information. An analysis of the legal basis for the use of the polygraph in Ukraine. Problematic issues concerning the appropriateness of using a polygraph in the investigation and detection of crimes have been studied. The domestic legal norms that regulate this issue, as well as foreign experience are analyzed. The article reveals the essence of the polygraph, the legal basis and requirements for its use. Attention is drawn to the main difficulties of using a polygraph and ways to solve them.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제24권2호
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• pp.83-109
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• 2021

In the early stage of lesson enactment process, teachers use textbooks and other resources to select tasks and activities. It follows that discrepancies between textbooks and research-recommended pathways for learning may lead to concerns or issues with pacing in the classroom. To explore this idea further, this study examined the alignment between three popular standards-aligned textbooks series and volume learning trajectories. The results indicated that the standards-based textbooks examined may lack attention to important topics in the pacing of volume instruction, and suggest the need to inform both pre-service and in-service teachers about the gap between textbook lessons and volume learning trajectories so that they will be able to reflect students' thinking in volume learning trajectory to their lessons.

• 대한간호학회지
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• 제47권6호
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• pp.806-816
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• 2017

Purpose: As comprehensive nursing care service has gradually expanded, it has become necessary to explore the various opinions about it. The purpose of this study is to explore the large amount of text data regarding comprehensive nursing care service extracted from online news and social media by applying a semantic network analysis. Methods: The web pages of the Korean Nurses Association (KNA) News, major daily newspapers, and Twitter were crawled by searching the keyword 'comprehensive nursing care service' using Python. A morphological analysis was performed using KoNLPy. Nodes on a 'comprehensive nursing care service' cluster were selected, and frequency, edge weight, and degree centrality were calculated and visualized with Gephi for the semantic network. Results: A total of 536 news pages and 464 tweets were analyzed. In the KNA News and major daily newspapers, 'nursing workforce' and 'nursing service' were highly rated in frequency, edge weight, and degree centrality. On Twitter, the most frequent nodes were 'National Health Insurance Service' and 'comprehensive nursing care service hospital.' The nodes with the highest edge weight were 'national health insurance,' 'wards without caregiver presence,' and 'caregiving costs.' 'National Health Insurance Service' was highest in degree centrality. Conclusion: This study provides an example of how to use atypical big data for a nursing issue through semantic network analysis to explore diverse perspectives surrounding the nursing community through various media sources. Applying semantic network analysis to online big data to gather information regarding various nursing issues would help to explore opinions for formulating and implementing nursing policies.

• The Journal of Asian Finance, Economics and Business
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• 제1권4호
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• pp.15-21
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• 2014

The main purpose of the research is to suggest a new business model of direct distribution of organic agricultural products cultivated in suburban area. To secure competitiveness, logistics cost reduction is important through direct transaction of organic agricultural products cultivated on suburban area. The research addresses food safety, farmers' income and unemployment issues with Eco-M business model. The research methods include investigation on the followings: current domestic agriculture; related problems on the existing literature reviews; the current status of suburban agriculture; specialty store of eco-friendly agricultural products. Eco-M business model can solve various problems of suburban agriculture supply system, challenges of organic farming specialty stores, unemployment issues, and difficulties of processing verticalization. Future research should include followings. First, there should be comparative analysis between businesses of environment-friendly specialty stores through suburban agriculture and producer's agriculture connected with organic farming market. Second, it is required to develop strategy of environment-friendly specialty stores. Finally, analysis of the potential of Sextic industries is necessary throughout production-process-service process.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.440-444
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• 2015

As domestic construction investment has been gradually reduced, expanding overseas construction is one of the most important issues for Korean construction companies. Among these issues, strategies for overseas CM services have widely been discussed, because the CM services have features of high growth potential and value-added area when compared with other construction sectors. Therefore, recent efforts focus on further development in advanced CM capabilities and expansion to overseas market. However, there has been lack of quantitative research to investigate current status and future direction of CM industry. In this sense, this research investigated what CM has achieved for the past 17years (between 1997 and 2013) and what CM should accomplish for future strategies. The purpose of this research is to statistically analyze total of 2,983 CM service contracts over the past 17 years published in KISCON (Knowledge Information System of Construction Industry) in order to examine current status of CM industry in terms of market type, contract size, commodity type, and owner's type. Based on this research, it is expected to suggest for future strategies and development directions from the CM industry perspective that could provide quantitative analyses, improve current CM statistics systems and strengthen the competitiveness in international CM market.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.73-77
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• 2005

To design senior housing that support residents' health is one of the comtemporary issues in Korea. As elderly people became more healthful and reach, people became interested in the health and health promotion. This trend encouraged this research study. The objectives of this study are: to analyze the middle aged people's opinions and behaviors related to health issues, and to suggest design considerations for senior housing. The survey used questionnaire from 476 residents living in Seoul and Gyeong-Gi area. The analysis used descriptive statistics, one-way anova and t-test. Primary findings are as follows: (1) Most of the respondents considered that their health state is 'good' and mental health is more important than physical health. (2) Many people exercise regularly for the promotion of health at a gym. (3) Results show that social relationship effect on health, and dietary life and walking medical examination account highly. (4) As the respondents are higher income and education level, the health-related behavior is more actively. Moreover the respondents who are women feel a great interest about health issues. These results suggest directions for planning of the senior housing. (1) Planning the space for the health-promoting behavior in the house or support a private gym-not a local facilities-. (2) Service for the information related health issues - medical examination, news of the health issues (3) Support the maintenance a good - social relationship (4) Consideration the space with health-related behavior like walking and dietary-life. The senior housing can reflect the health-related opinions and support health-related behavior of the elderly people.

• 기술혁신학회지
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• 제14권4호
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• pp.833-859
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• 2011

본 연구는 지역 소재 과학기술 연구 공용장비에 대한 중복투자 방지와 산학연 협력 활성화를 통한 지역내 R&D 효율성을 증진을 위해서 지역 연구 공용장비 운영체계의 특성 도출을 목적으로 하였다. 이를 위해 기술하부구조정책 및 지역혁신체제의 관점에서 R&D투자와 R&D활동이 상대적으로 활발한 경기도 지역의 사례를 분석하였다. 본 연구는 개별사례분석과 교차사례분석의 2단계 프로세스로 수행된다. 우선, 경기도 소재 주요 R&D 기관별 공용장비의 구축 활용 사례 조사와 운영 관련자 인터뷰를 통해 공용장비 운영 특성을 조사하였다. 다음 단계에서는 전(前) 단계에서 조사된 특성들을 공용장비의 운영주체의 조직거버넌스 특성에 따른 3가지 분류와 4가지 이슈를 매트릭스 방식으로 범주화하여 지자체 차원의 정책적 접근이 가능하도록 이슈를 정리하였다. 교차사례분석에 따라 각 운영체계별로 도출된 주요 이슈는 (1) 지자체 주도 운영체계의 경우 '공용장비 사용 수수료 체계' 및 ;공용장비 운용의 성과 지표 정립 및 성과 측정 방법'，(2) 국가/지자체/공공연구기관 등 공동 운영체계의 경우 '공용장비 운용 성과' 및 '사업부별 공용장비 회계시스템 구축', '예산 지원방식 변경'，(3) 대학 운영체계의 경우 '사업종료 후 지속적 공동활용 촉진 방안' 등으로 나타났다.

• 산경연구논집
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• 제14권8호
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• pp.19-25
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• 2023

Using a procurement and construction stage emphasis on the capabilities of the Sub-Contractor (SC), the present research aims to discover the types of unfair activities between the Main Contractor (MC) and SC and their influence on project completion. This research also tries to figure out solutions which can reduce unfair activities between MC and SC. Research design, data and methodology: The qualitative textual analysis was selected for the current research and has been used by numerous previous researchers commonly to review relevant themes in the prior resources and suggested for researchers who conduct a reviewing procedure to analyze meta-analysis approach for figuring out better research findings from prior resources. Results: The result indicates the prevalence and consequences of bid shopping, emphasizing the need for transparency and fair bidding practices. Late payment issues were also found to be crucial for subcontractors' financial stability, urging the implementation of prompt payment legislation and agreements. Conclusions: In conclusion, the research revealed that subcontracting is common in construction projects, with general contractors relying on multiple subcontractors to carry out specific work items. The accomplishment of building projects hinges on the collaborative efforts between the main contractor (MC) and subcontractors (SCs), each focusing on different aspects of the project.