• 제어로봇시스템학회논문지
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• 제16권12호
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• pp.1159-1166
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• 2010

Today, detecting the location of moving object has been traced as various methods in our world. In this paper, we preset the system to improve the estimation accuracy utilizing detail localization using radar sensor based on WSN and situational awareness for a calibration (context aware) database, Rail concept. A variety of existing location tracking method has a problem with receiving of data and accuracy as tracking methodology, and since these located data are the only data to be collected for location tracing, the context aware or monitering as the surrounding environment is limited. So, in this paper, we enhanced the distance aware accuracy using radar sensor utilizing the Doppler effect among the distance measuring method, estimated the location using the Triangulation algorithm. Also, since we composed the environment data(temperature, illuminancem, humidity, noise) to entry of the database, it can be utilized in location-based service according to the later action information inference and positive context decision. In order to verify the validity of the suggested method, we give a few random situation and built test bed of designed node, and over the various test we proved the utilizing the context information through route tracking of moving and data processing.

• 한국임상보건과학회지
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• 제1권2호
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• pp.39-47
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• 2013

Purpose. To examine the orientation of the eco-friendly Health care service on korean Hospital nurses Methods. Between October 2012 and November 2012, two hundred eighty five nurses (mean age, $25{\pm}17$ years; age range, 22~42yrears) were enrolled in this study. They performed a questionnaire which related to environmental problem, hospital infectious wastes manage and eco-friendly care service orientation. Results. Within the results, There were statistically significant correlation between "Hospital infectious wastes management" and "environmental problem awareness"(r=0.45, p<.001), "eco-friendly care service orientation"and "environmental problem awareness" (r=0.48, p<.001), and "eco-friendly Health care service orientaton" and "Hospital infectious wastes management"(r=0.50, p<.001). Conclusions. In current study, these results express that it is necessary to promote environmental problem awareness and hospital infectious wastes management practice for the "orientation of the eco-friendly Health care service on korean hospital nuurses.

• 한국식생활문화학회지
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• 제30권5호
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• pp.695-702
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• 2015

The aim of this study was to investigate school dieticians' awareness of the necessity for nutritional education and job satisfaction via qualitative research. For this purpose, in-depth interviews were carried out with 10 school dieticians. Results revealed that all participants said that schools urgently need nutritional education, and dietary attitude and unbalanced eating habits were the most urgent matters to be addressed. They made various suggestions related to revitalization of nutritional education: turning dieticians into nutritional educators, improving awareness of teachers and parents, receiving training on appropriate teaching methods, and so on. In response to their tasks, they considered bargaining with vendors and examination foods as the most burdensome tasks. In response to questions about how participants were treated in their workplaces, all participants reported low job satisfaction due to excessive work, lack of promotion opportunities, and low salary. To improve this, participants recommended creating a task manual, strengthening their role as managers, increasing their salary, and so on. Therefore, institutional support is necessary for dieticians to efficiently handle their excessive workload. In addition, an educational environment where dieticians can effectively carry out nutritional education needs to be created.

• 한국컴퓨터정보학회논문지
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• 제22권7호
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• pp.17-29
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• 2017

IRecently, researches on the recognition of indoor user situations through various sensors in a smart home environment are under way. In this paper, the case study was conducted to determine the operation of the robot vacuum cleaner by inferring the user 's indoor situation through the operation of home appliances, because the indoor situation greatly affects the operation of home appliances. In order to collect learning data for indoor situation awareness model learning, we received feedbacks from user when there was a mistake about the cleaning situation. In this paper, we propose a semi-supervised learning method using user feedback data. When we receive a user feedback, we search for the labels of unlabeled data that most fit the feedbacks collected through genetic algorithm, and use this data to learn the model. In order to verify the performance of the proposed algorithm, we performed a comparison experiments with other learning algorithms in the same environment and confirmed that the performance of the proposed algorithm is better than the other algorithms.

• 대한전자공학회논문지TC
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• 제46권2호
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• pp.81-88
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• 2009

본 논문은 유비쿼터스 네트워크 환경에서 커뮤니티 멤버 ID를 이용하는 비대화형 키 분배 알고리즘을 적용한 세션키 교환 및 인증 기법을 제안한다. 유비쿼터스 네트워크 환경에서는 언제, 어디서나 사용자들이 필요로 하는 서비스를 제공해주기 위해 다양한 상황인식 정보들이 수집되고 활용된다. 그러나 유비쿼터스 네트워크 환경의 경우 공격자에 의해 상황인식 정보가 위조 및 도용되어 악의적인 목적으로 사용될 수 있다. 제안하는 기법은 커뮤니티 사용자 ID 정보를 이용한 커뮤니티 멤버들 간의 상호 인증 및 세션키 교환 기법을 제안하여 안전한 정보 전달을 수행할 수 있도록 하였다. 또한 AAA 인증 서버 기반 기법과의 비교 분석을 통해 상호 인증 및 세션키 교환 과정에서 발생하는 통신 오버헤드와 인증 지연시간이 감소함을 확인하였다.

• 가정과삶의질연구
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• 제22권1호
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• pp.55-64
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• 2004

The major purpose of this study was to investigate purchasing behavior of environmental products by Korean consumers, which will ultimately help foster sustainable consumption. Environmental consciousness, environmental behaviors, level of awareness of environmental products, and purchasing of environmental products were examined. Mean differences between purchasers and non-purchasers of environmental products were compared in terms of environmental consciousness and behaviors, and the level of awareness of environmental products. A survey was conducted on 310 consumers in the greater Seoul metropolitan area. The data were analyzed by frequencies, percentages, logistic regression, and t-tests using a variable for interval scale and a variable for nominal scale. There were significant mean differences between purchasers and non-purchasers of environmental products on three variables of environmental consciousness and behaviors. Those who were educated on environmental issues showed a higher preference in purchasing environmental products. Among socio-demographic variables, the income level was the only variable that showed a significant mean difference between the two groups. Also, there was a remarkable difference in purchasing behavior between the two groups. For the purchasers of environmental products, the purchasing decisions took into account environment-friendliness of products. Non-purchasers of environmental products put more emphasis on price or quality of products. The results of the logistic regression analysis indicated that those who had higher education, who viewed environmental pollution as a serious problem, and who are more cognizant of the environmental labeling tend to purchase more environmental products.

• 한국산학기술학회논문지
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• 제12권11호
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• pp.4869-4874
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• 2011

본 논문에서는 위치 기반 서비스로서의 U-Learning에 적용할 수 있는 구성 및 온톨리지 이론을 정의하였다. 또한 본 논문에서는 위치 기반 서비스로서의 U-Learning에 대한 확실한 비전을 제공하고자 하였다. 상황 인식을 적용한 전형적인 U-Learning을 소개하였으며, 핵심 아이디어 및 기술적 개념을 포함한 학습 환경 구조도 소개하였다. 고급 정보통신 기술의 원리를 적용하여, 위치 기반 서비스로서의 U-Learning을 위한 인공지능 기반 상황 인식 개념도 정리하였다. 본 논문에서 언급하는 위치 기반 서스비로서의 U-Learning 및 하위 개념들은 새로운 패러다임을 제공할 것이며, 학습 환경 구조에 포함된 하위 요소들도 모두 제안하였다.

• Asian Journal of Business Environment
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• 제12권2호
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• pp.13-28
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• 2022

Purpose: Natural products are becoming gradually popular because of their health - related benefits and consumers' environmental awareness. However, research in this field remains limited, the present study attempts to address this research gap by measuring the influencing levels of the antecedents on natural product brand love. Research design, data and methodology: The study employs S-O-R (Stimulus - Organism - Response) framework together with Innovation Resistance Theory and Dual-Factor Theory to propose the research model, in which health and environmental stimuli influence both of facilitators and inhibitors of internal states or organism, and then shape purchase intention and brand love as consumers' responses. The mixed research method is designed with the application of structural equation model (SEM) to analyze 530 consumers collected by convenience sampling. Results: The results revealed that two chosen stimuli, including health awareness and environmental concern were positively related to both facilitators (natural content and regional products) and inhibitors (image barrier and usage barrier) and these four factors were significantly associated to purchase intention and brand love. Furthermore, purchase intention played the mediating role on the relationship between the four organisms and brand love. Conclusions: The originality of this paper is extend S-O-R theory into natural product context with mediating effects in an emerging economy. The findings make theoretical contribution on consumer behavior and managerial implication.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2008년도 추계학술대회 논문집
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• pp.348-349
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• 2008

• 한국환경교육학회지:환경교육
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• 제14권2호
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• pp.28-39
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• 2001

The purpose of this study is to understand the characteristics and the differences regarding the teaching & learning objectives of Environment textbooks for middle school students with the consideration of the 7th Korean National Curriculum. For this the teaching & teaming objectives of three Environment textbooks currently used categorized according to the domain frame of environmental education in the Report of UNESCO(1980). three Environment textbooks and their teacher's guide books are those printed by three companies(A, B, and C) and Joongahng co.. The five objective categories recommended by UNESCO are awareness, knowledge, attitude, skills and participation and six types of skills by National Curriculum Council of England are communication skills, numeracy skills, study skills, problem-solving skills, personal and social skills and information technology skills. It is showed that'Human and Environment'domain is emphasized roughly in the awareness and the knowledge section without any statement of the participation section, 'Environmental Problems and its Counter-plan'domain in the knowledge and the skills section, 'Environmental Conservation'domain in the skills and the participation section of objectives. It is revealed that the skills section of the teaching 8t learning objectives is mainly involved in 'Environmental Problems and its Counter-plan'domain and'Environmental Conservation' domain. According to the result of the analysis of the connectivity between the Environment Curriculum of the 7th Korean National Curriculum and the Environment textbooks regarding objectives stated in the sub-domain level, it says those are generally appropriate ones. But some objectives are emphasized weakly or not at all in several sub-domains such as'The living environment to keep','The environmental problems of the earth','Making environment pleasant'. It is proposed that the efforts to state objectives in the Environment textbooks evenly are needed to be paid (or the well-balanced teaching & teaming of the Environment subject.