• 한국주거학회:학술대회논문집
• /
• 한국주거학회 2001년도 학술발표대회논문집
• /
• pp.99-104
• /
• 2001

This paper is contents that experiment exhaust performance of contaminant by establishment height gas table and hood establishment height. Hood made to control from gas table to 10 centimeters space from 30 centimeters to 70 centimeters. Exhaust fan operated by 110V, 160V, 220V, and gas used propane gas. Center part appeared highest as result that measure wind velocity and temperature from hood lower part. Wind velocity from hood lower part was proved that dominate contaminant exhaust performance. Exhaust performance of carbon dioxide and heat showed that 30 centimeters case overmatches because establishment height of hood compares 80 centimeters. Case of carbon dioxide of exhaust performance by establishment height of hood overmatched more than heat.

• 한국병원경영학회지
• /
• 제4권1호
• /
• pp.147-170
• /
• 1999

This study was performed to assess the financial performance of medical institutions and examine the affecting factors in Taegu metropolitan and Kyungpook province. The major results are as follows ; The liability to total assets was significantly different according to the ownership type of medical institution. It was the highest in the case of juridical person having a special status. The total assets turnover and value added to total assets were significantly different according to the type of medical institution, period of establishment, and ownership type of medical institution. They were higher in the tertiary medical institution, in private hospital and university hospital, and they were increased with establishment period of medical institution. The growth rate of patient revenues were significantly different according to the type of medical institution, period of establishment, and the growth rate of adjusted inpatient days were significantly different by period of establishment. The return on assets and net profit to gross revenues were the highest in private hospital. Private hospital went into the black, but other hospitals went into the red figures. According to the multiple regression analysis for the net profit to gross revenues, ownership type, period of establishment, and management strategy of medical institution were significant It was higher in private hospital and medical institution with prospector management strategy, and it was increased with establishment period of medical institution. In multiple logistic regression analysis for the status of financial performance in medical institution, period of establishment, management strategy of medical institution were significant It was better in medical institution with prospector management strategy and longer period of establishment.

• 정보보호학회논문지
• /
• 제19권2호
• /
• pp.165-169
• /
• 2009

본 논문에서는 무선센서네트워크를 위한 랜덤키사전분배기법의 경로키 설정에 대해서 재고한다. 먼저 랜템키사전 분배기법의 기본적인 단계인 경로키 설정이 성능면에서 비실용적임을 보이고, 이를 크게 개선하기 위한 새로운 기법을 제시하고 그 성능을 분석한다.

• 한국융합학회논문지
• /
• 제11권4호
• /
• pp.203-219
• /
• 2020

본 연구는 기업부설연구소의 설립이 기업성과와 혁신지향 형 기업이 되는데 영향을 주는지를 실증분석하고 정책수립의 시사점을 제시하고자 하였다. 로지스틱 회귀분석을 통하여 기업부설연구소 설립과 내부역량 변수에 따라 혁신형이나 혁신성과 형 기업군에 속하는데 영향을 미치는지 분석하였다. 결과적으로 기업부설연구소 설립은 혁신지향 기업군에 속하는 확률에 양(+)의 영향을 미치는 것으로 분석되었고 기업성과에도 차이가 있게 영향을 주는 것으로 나타났다. 특히 내부역량 중 생산운영 역량이 혁신 형 기업군 포함에 유의한 영향을 미치고 매개효과를 보이는 것으로 분석되었다. 연구된 내용을 바탕으로 중소기업의 기업부설연구소 설립 장려와 연구소 활성화 등을 위한 정책 방향을 제시하고 한계점과 향후 연구방향을 제안하였다.

• 스마트미디어저널
• /
• 제9권2호
• /
• pp.78-85
• /
• 2020

본 연구는 사회적으로 환경에 대한 이슈화가 기업의 내·외부 네트워크 구축 및 환경경영활동을 통해 지속가능 환경경영성과에 미치는 영향을 밝히고자 한다. 기업체 대상의 163개의 최종 수집 자료를 통한 분석한 결과, 사회적 환경이슈화는 내부공유 시스템에 유의한 영향을 미치지 않는 것으로 나타났으나 규제대응과 협력네트워크 구축에는 모두 유의한 정(+)의 영향을 미치는 것으로 나타났다. 또한 기업의 환경에 대한 규제대응은 내부공유시스템과 협력네트워크 구축, 그리고 환경경영활동 모두에 정(+)의 유의한 영향을 미치는 것으로 나타났으며, 내부공유시스템과 협력네트워크 구축이 환경경영활동에 모두 정(+)의 유의한 영향을 미치는 것으로 나타났다. 마지막으로 환경경영활동이 지속가능 환경경영성과에 유의한 영향을 미치는 것으로 나타나 환경이슈화는 기업의 지속가능한 성장을 촉진시켜 환경경영활동과 성과를 이끌고 있음을 나타냈다.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2008년도 추계학술대회 논문집
• /
• pp.776-781
• /
• 2008

In this paper, comments on the needs of establishment of railway test line - capable of mid and long term performance evaluation of vehicle/infra/electricity/signal component/system - are described. Based on the previous studies, national/social/economic needs, the states of similar lines of foreign countries, concept of test line, and basic application plan are summarized. Especially, core things needed to the establishment of test line are commented.

• 대한안전경영과학회지
• /
• 제25권4호
• /
• pp.57-65
• /
• 2023

The public safety management guidelines were introduced in 2019 and continue to be dedicated to advancing comprehensive measures for public safety management, with a primary focus on prioritizing the safety and well-being of the public within governmental institutions. To achieve this goal, our previous study developed a establishment procedure of risk assessment-based safety inspection system for public institutions that order construction projects and applied it to highway construction projects to evaluate its effectiveness. To enhance the practicality of the establishment procedure, it is essential to collect and analyze feedback from stakeholders regarding its performance and suitability. This study conducted a survey involving 200 participants who had experience with the establishment procedure, and performed statistical analyses to evaluate its performance and applicability. The survey results indicated that the participants reported a high level of satisfaction (scoring 4 and above on a 5-point Likert scale) in several areas: specialization of safety inspection items for different types of work (with a satisfaction rate of 65%), the evaluation process for safety ratings (64.5%), and their willingness to recommend the procedure to other institutions (75.5%). In the factor analysis with Varimax rotation, two factors emerged: (1) a specialization factor related to safety inspection items, and (2) a grading factor associated with safety evaluation results. Regression analyses of these factors unveiled significant positive relationships with improvements in safety and health performance, including the prevention of fatal accidents, heightened safety responsibility, and raised safety inspection standards. The establishment procedure of safety inspection system developed in our previous study can play a crucial role in reducing accidents resulting in fatalities and injuries at construction sites, ultimately contributing to a safer working environment for all involved parties.

• Journal of Multimedia Information System
• /
• 제8권4호
• /
• pp.267-276
• /
• 2021

This study discovered the effects of strategic learning and network building on a company's environmental management performance. According to the results, the environmental awareness of the company and competition threats within the industry did not significantly affect the establishment of environmental strategy, whereas the consumer's sensitivity to the environment and the environmental regulation of the government did. The environmental awareness of the company and the consumer's sensitivity to the environment were found to greatly impact a company's network building. which is closely related with the utilization of multimedia system and technology. In addition, it was found that the establishment of corporate environmental strategy had a significant effect on network building and strategic learning, but network building did not significantly affect strategic learning, indicating a difference. Finally, corporate strategic learning affected environmental management performance, suggesting an importance in accumulating strategic learning capabilities to increase environmental management performance.

• Journal of Communications and Networks
• /
• 제9권4호
• /
• pp.356-367
• /
• 2007

In large networks, maintaining precise global network state information is impossible. The imprecise network state information has significant impacts on Quality-of-Service(QoS) routing and path establishment. In this paper, we develop analytical models for investigating the QoS routing schemes that are designed to tolerate imprecise network state information, and study the performance of various QoS routing schemes, including randomized routing, multi-path routing, and probability based routing, using both the models and simulations. We further propose a new mechanism, called local rerouting, that improves the effectiveness of QoS path establishment in the presence of imprecise global network state information. Local rerouting is orthogonal to existing schemes for dealing with imprecise state information and can be used in conjunction with them to alleviate the impacts of the imprecise information. The results of our performance study indicate that local rerouting is robust and effective.

• 대한전자공학회논문지TC
• /
• 제40권6호
• /
• pp.213-224
• /
• 2003

제안된 알고리듬은 채널 잡음전력에 따라 적응적으로 문턱값 레벨을 결정하는 적응 문턱값 설정방식을 사용하여 채널특성에 관계없이 항상 최적의 문턱값을 설정한다. 또한, 이것은 그 추정성능이 다중경로채널에서의 전력지연 프로파일 변동에 대해 덜 민감하도록 만드는 특별하게 설계된 훈련심볼을 사용한다. 그 결과, 제안된 기법의 추정성능은 채널특성 변동에 대해 영향을 적게 받는다.