• 공학교육연구
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• 제13권3호
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• pp.61-67
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• 2010

본 연구에서는 공학인재 양성 현황을 파악하고자 하는 목적으로 고등학생들의 공과대학 진학 현황, 학부 및 대학원 공학교육 현황을 조사하였다. 본 연구의 결과 대학과 대학원에서 공학인력의 양적인 감소가 2003년 이후로는 현저하게 관찰되지 않았다. 그러나, 공학인재들이 공과대학 교육을 받은 후 의 치의학 전문대학원으로 진학하는 것을 선호하는 것으로 나타났다. 따라서 고등학교 학생들을 대상으로 공학에 대한 관심과 흥미를 유발하는 프로그램들이 필요하며, 대학에서는 차별화 및 특성화된 공학교육 프로그램으로 경쟁력있는 공학인재를 양성하기 위한 정책과 지원이 필요하다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권4호
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• pp.973-988
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• 2012

Delay tolerant networks (DTNs) characterized by the lack of guaranteed end-to-end paths exploit opportunistic data forwarding mechanism, which depends on the hypothesis that nodes are willing to store, carry, and forward the in-transit messages in an opportunistic way. However, this hypothesis might easily be violated by the presence of selfish nodes constrained with energy, bandwidth, and processing power. To address this problem, we propose a practical reputation-based incentive scheme, named PRI, to stimulate honest forwarding and discipline selfish behavior. A novel concept of successful forwarding credential and an observation protocol are presented to cope with the detection of nodes' behavior, and a reputation model is proposed to determine egoistic individuals. The simulation results demonstrate the effectiveness and practicality of our proposal.

• 한국보육지원학회지
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• 제12권4호
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• pp.151-181
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• 2016

This study examined professional development systems in America, England, and Australia, and devised ways to enhance early childhood teachers' professional development in Korea. To suggest effective ways to improve current professional development system and its operation, this research aimed to investigate first, advanced professional development systems and policies in three countries, America, England, and Australia, second, the process of teacher qualification and requirements for acquiring teacher credential and its maintenance, and lastly, the effort of quality control for professional development, its operation, and evaluation systems in three countries. Based on the analysis of the three country's systems, five solutions for effective professional development are suggested. First, it is necessary to differentiate requirements for teachers by the level of teacher credentials. Second, an incessant training process for professional development is required. Third, an individualized professional development plan should be set for an individual teacher for the best outcomes in professional competence. Fourth, instructors for professional development trainings are needed to ensure the quality of training. Lastly, individuals, organizations, and policy and its operation systems need to be considered holistically as a whole in the perspective of convergence in policy making and its operation for effective professional development.

• 한국정보과학회논문지:시스템및이론
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• 제26권10호
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• pp.1237-1247
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• 1999

이질적 분산 환경에서 전자 상거래는 신임장을 기반으로 상거래 참여자들에 대한 인증 서비스가 제공되어야 한다. 본 연구에서는 CORBA 보안 명세 1 를 기반으로 전자 상거래 참여자들에 대한 객체 단위 인증 및 권한 부여 기법을 제공하는 상호 인증 서비스 구조를 제안한다. 이 구조는 Kerberos 2 의 인증 기법 및 인증 키 교환 기법으로 전자 상거래 참여자간에 상대 주체의 신원 확인 뿐 아니라 거래 진행 중 취득한 정보의 근원을 파악할 수 있도록 하였다. 또한 Kerberos 기법을 CORBA 플랫폼 기반의 상호 인증 구조로서 분산 환경에 대해 확장하였으므로 키 관리 등 보안 정보 관리에 있어 효율적이다.Abstract Electronic commerce shall provide its subjects with a credential-based authentication service in the heterogeneous distributed computing environment. In this paper, based on CORBA security service specification 1 which OMG defined, we propose the mutual authentication service for subjects of electronic commerce, providing the authentication of object level and the authenticated key exchange. This proposed structure, by Kerberos 2 for the authentication and the authenticated key exchange, assures not only the identification of a partner but also the confidence of origin of business item for negotiations between subjects of electronic commerce. Since our deployed Kerberos is extended to the mutual authentication service based on CORBA platform, it is efficient for security administration to manage the information such as a key management in the heterogeneous distributed computing environment.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.1-10
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• 2021

The Internet of things (IoT) is the main advancement in data processing and communication technologies. In IoT, intelligent devices play an exciting role in wireless communication. Although, sensor nodes are low-cost devices for communication and data gathering. However, sensor nodes are more vulnerable to different security threats because these nodes have continuous access to the internet. Therefore, the multiparty security credential-based key generation mechanism provides effective security against several attacks. The key generation-based methods are implemented at sensor nodes, edge nodes, and also at server nodes for secure communication. The main challenging issue in a collaborative key generation scheme is the extensive multiplication. When the number of parties increased the multiplications are more complex. Thus, the computational cost of batch key and multiparty key-based schemes is high. This paper presents a Secure Multipart Key Distribution scheme (SMKD) that provides secure communication among the nodes by generating a multiparty secure key for communication. In this paper, we provide node authentication and session key generation mechanism among mobile nodes, head nodes, and trusted servers. We analyzed the achievements of the SMKD scheme against SPPDA, PPDAS, and PFDA schemes. Thus, the simulation environment is established by employing an NS 2. Simulation results prove that the performance of SMKD is better in terms of communication cost, computational cost, and energy consumption.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 춘계학술대회
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• pp.17-18
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• 2023

2022년 3월 15일부터 해양경찰청에서는 채용경로의 다양화를 위해 승선경력 없이도 해양경찰청 소속의 선박교통관제사(VTS_Of ficer) 채용시험에 응시 가능하도록 선박교통관제사의 자격 기준을 개정하였다. 본 연구를 통해서 선박교통관제업무 현황을 조사하고 현재까지 추진되어 온 선박교통관제규정, 선박교통관제사 자격 제도에 관한 중요한 규정의 제정 및 개정에 관한 사항등을 검토하여 관제 운영 국내 외 사례를 통해 관제 업무 수행 방안 별 장단점을 비교 분석한다. 또한, 선박교통관제사 자격 제도가 추후에 성공적으로 정착할 수 있도록 선박교통관제 업무의 향후 발전 방안을 제시하고자 한다.

• 디지털융복합연구
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• 제12권4호
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• pp.259-264
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• 2014

최근 센서 기술의 발달로 인하여 체내삽입장치를 부착한 환자가 언제, 어디서나 의료 서비스를 받을 수 있는 환경으로 변화하고 있다. 그러나, 체내삽입장치를 부착한 환자의 생체정보가 병원관계자(의사, 간호사, 약사 등)에게 전달할 때, 환자의 정보가 제 3자에게 쉽게 노출되어 악용될 수 있는 문제점이 발생되고 있다. 본 논문에서는 제3자가 환자로 위장하여 병원관계자로부터 환자 정보를 쉽게 획득할 수 없도록 유헬스케어 서비스 센터로부터 환자의 위임장을 병원관계자가 전달받는 위임장 기반의 서명 인증 프로토콜을 제안한다. 제안 프로토콜은 환자의 민감한 정보를 제 3자에게 노출시키지 않도록 환자의 민감한 정보를 유헬스케어 서비스 센터와 환자가 생성한 랜덤수로 해쉬한 서명키로 환자의 민감한 정보를 암호화한다. 또한 제 3자로부터 환자 정보가 불법적으로 악용되는 것을 예방하기 위해서 환자와 병원관계자 사이의 동기화를 유지함으로써 환자의 생체 정보 유출을 예방할 수 있다.

• 융합보안논문지
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• 제12권5호
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• pp.41-50
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• 2012

본 연구는 시큐리티기업의 사회적책임과 조직신뢰 및 조직몰입간의 관계에 대한 고찰을 실시하였다. 결과는 다음과 같이 도출하였다. 첫째, 시큐리티기업의 사회적 책임과 조직신뢰의 관계에 대해 가설검증을 한 결과 법적 윤리적 책임, 자선적 책임이 조직신뢰에 정의(+) 유의한 영향을 미치는 것으로 나타나 부분채택 되었다. 둘째, 시큐리티 기업의 사회적 책임과 조직몰입의 관계에 대한 가설검증 결과 에 대해 분석한 결과 법적 윤리적 책임, 자선적 책임에서 조직몰입에 정의(+) 유의한 영향을 미치는 것으로 나타나 부분채택 되었다. 결과적으로 법적 윤리적 책임, 자선적 책임이 종사자들부터의 조직몰입을 이끌어 내는 결정적 설명변수임을 시사하는 것이라 할 수 있다. 따라서 기업의 법령 준수, 윤리적 행위, 자선적 활동은 종사자로부터 조직의 목표를 달성하기 위해 필요한 조직몰입을 크게 이끌어낼 수 있는 중요한 요인이므로 지속적인 관심과 실천이 필요하다고 할 수 있다.

• 한국학교보건학회지
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• 제11권2호
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• pp.189-201
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• 1998

The objectives of this study are first to develop the index of school health promoting behaviors, two, to measure those, third, to analysis the relative importance of factors that effect on school health promoting behaviors. School health promotion indexes were composed of 60 components of six areas which modify the element of health promoting schools are developed by world health organization. The survey data were collected by questionnaires from June to September in 1998. The number of subjects was 294 school nurses. The SAS-PC program was used for the statistical analysis. The major results were as follows: 1. The six areas of school health promoting behaviors are: school health politics (20 components), the school physical environment (17 component), the school social environment (7 component), community relationships (6 component), personal health skills (7 component) and health services (3 component). 2. The mean of total school health promotion indexes was highest at elementary school as 3.46. The order of area was health services, the school physical environment, school health politics, the school social environment, personal health skills, community relationships. 3. The regression model used in this analysis presented significant relationships between school health promoting behaviors and independent variables. The important variable affecting the area of school physical environment was education level of school nurses. The important variable affecting the area of the school social environment and personal health services were the location of school, credential education program. Age or career also were significant variables affect the community relationships and health services. In summary, The health promoting behavior of elementary school was higher than other school. It is mean that have to perform active promoting behavior at middle school and high school. Health service level was highest among areas of school health promoting behaviors. It is mean also that school nurse teachers is interested in activity for other areas to improve of school health. Furthermore, it is necessary to develop the specific program for school health promoting behavior.

• 보건교육건강증진학회지
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• 제24권4호
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• pp.241-249
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• 2007

Health education aims at behavior change rather than just delivering health knowledge to people. In Korea health education activities in public sector began in 1960 and they were included in the primary prevention program in communities. This article reviewed current health education programs in healthy living practice programs provided by local public health centers in Korea and drew implications for the future role of health education in community setting. Health education has been a core function of the National Health Promotion programs in the nation since the enactment of the National Health Promotion Law in 1995. The National Health Promotion programs are funded by the National Health Promotion Fund which are drawn from tobacco tax. The National Health Promotion programs include healthy living practice programs (smoking prevention and cessation programs, moderate alcohol use programs, physical activity promotion programs, and nutrition programs), chronic disease prevention programs, oral health programs and public hygiene programs. Methods of the National Health Promotion programs include health education, health counseling, health class, health information management, survey and research. Smoking prevention and cessation programs include smoking cessation clinic, smoking cessation education, non-smoking environment program, and non-smoking campaign. Moderate alcohol use programs include alcohol use education, moderate alcohol use campaign, alcohol use counseling, and alcohol free environment programs. Physical activity promotion programs include obesity control, targeted exercise program, and exercise civic group programs. Nutrition programs include nutrition management, obesity management, nutrition education, breakfast eating program, and nutrition counseling and treatment programs. The health education programs in community are not efficient today because there are many overlapping contents and short term goals. Community health education programs needs to be more comprehensive. Workforce development is another big issue at the moment because the National credential program will begin in 2009. Variety of community health education programs should be developed and funded by the national health promotion fund.