• 한국정보처리학회논문지
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• 제4권10호
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• pp.2521-2532
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• 1997

월드 와이드 웹(WWW)과 MBone 응용 등의 출현으로 인터넷 이용자가 급속히 증가되면서 인터넷 주소 공간의 확장과 멀티미디어 응용을 지원할 수 있도록 기존 인터넷 프로토콜의 개선이 요구됨에 따라 IETF에서는 차세대 인터넷 망 계층 프로토콜로써 IPv6를 개발하였다. 이 논문에서는 IPv6 프로토콜을 Windows NT의 커널 내부에 프로토콜 드라이버로 구현한 내용을 기술하고 있다. 본 연구에서는 IPv6 호스트로 동작되기 위해 필수적으로 요구되는 IPv6 헤더 처리기능, IPv6 주소처리기능, 제어메세지 처리기능, 그룹관리 메세지 처리기능, 이웃탐색 기능이 구현 및 시험되었다. 구현된 IPv6 프로토콜 드라이버 모듈은 하부 통신망 접속 카드와 표준 인터페이스인 NDIS를 통해 접속되며, 디스패치 함수화 Lower-Edge 함수를 이용하여 커널 내부에서 동작하는 드라이버 모듈을 상위 사용자 응용 및 하부 NDIS와 접속시키는 형태로 구현하였다. 구현된 IPv6 프로토콜 드라이버는 커널 모드에서 구현됨으로써 향상된 성능을 제공하며, 다이나믹 링크 라이브러리 형태로 사용자 인터페이스를 제공하므로 응용 프로그램 개발자들이 손쉽게 사용할 수 있도록 하였다.

• 한국정보과학회논문지:정보통신
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• 제36권4호
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• pp.263-274
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• 2009

비중앙화(decentralized) 그룹키 관리 알고리즘은 그룹 멤버의 변화에 대한 영향을 지역적인곳으로 한정시킴으로서 안전한 멀티캐스트 네트워크 구조의 확장성(scalability)과 안정성(reliability)을 향상시킬 수 있다. 그러나 기존의 비중앙화 그룹키 관리 기법들에서는 멀티캐스트 과정에서 중간의 중계노드들이 멀티캐스트 데이터의 평문 정보를 복호화함으로써 그룹 통신의 비밀성이 보장되지 않거나, 하위 그룹간의 안전한 통신을 위해서 외부의 중앙화된 그룹키 분배 센터가 필요했다. 본 연구에서 제안하는 그룹키 관리 방식에서는 서비스 제공자가 대리 암호(proxy encryption)를 이용하여 그룹키를 분산화(distributed) 방식으로 합법적인 그룹 멤버에게만 분배한다. 따라서 멀티캐스트 데이터를 전송하는 과정에서 데이터의 비밀성을 보장하는 안전한 통신을 가능케 함과 동시에 중앙화된 그룹키 분배 센터에 대한 필요성을 제거시킬 수 있다. 제안하는 그룹키 관리 기법은 중앙화된 네트워크 관리자가 없이 네트워크의 구조가 빈번히 변화하는 신뢰할 수 없는 동적인 네트워크 환경에서도 안전한 그룹통신을 효과적으로 보장할 수 있다.

• 디지털융복합연구
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• 제17권10호
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• pp.469-478
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• 2019

본 연구는 스포츠산업 분야의 민간스포츠 분야에 문제를 해결하고 발전을 위한 대안으로 스포츠협동조합이 정착하고 발전할 수 있도록 활성화 요인을 분석하였다. 협동조합과 스포츠협동조합 전문가를 대상으로 델파이 조사를 통해 활성화 요인 도출과 AHP를 통해 그 우선순위를 분석한 결과, 다음과 같은 결론을 제시하였다. 먼저, 기본방향으로 경제적 사회적 문화적 제도적 요인을 제시하였다. 다음 추진전략은 첫째, 협동조합의 본질에 기초한 방향 설정, 둘째, 사업 경영 개발과 조직 역량 강화로 재정확보, 셋째, 협동조합 기본법 숙지와 행정지원 확보, 넷째, 협동조합 간 협력과 상호작용을 통한 지역사회기여 등의 순으로 제시하였다. 끝으로 실천과제는 첫째, 조합원 필요성과 가치철학 인식으로 소통 및 공유, 둘째, 전문경영 교육을 통한 자질향상으로 재정자립도 강화, 셋째, 민주적인 운영과 촉진정책으로 조합원 경제적 참여, 넷째, 정부 정책 및 행정업무 숙지를 통한 지원확보, 다섯째, 협동조합 간 네트워크구축으로 지역 커뮤니티형성, 여섯째, 조합원 체계구축과 효율성 추구로 사업모델개발 순으로 제시하였다.

• 보건행정학회지
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• 제28권4호
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• pp.369-377
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• 2018

Background: Catastrophic health expenditure (CHE) occurs when medical expenditure of a household passes over a certain ratio of household income. This research studied the effect of gender on CHE based on Korea Health Panel data. Methods: This study implemented binary logistic regression model to figure out whether gender affects CHE and how different gender groups show pattern of CHE process. With gender, age, marital status, income level, economic activity, membership of private insurance, existence of chronic disease, and self-rated health were included in the model. Results: Results showed that females faced CHE 1.5 times more than males (odds ratio, 1.241). Also, main determinants of CHE in female groups were marital status, while age and economic activity status were significant in male groups. Subgroup analysis displayed that married female under 35 years old are located in intersectionality of CHE including pregnancy and delivery, multiple health risk behaviors, mental stress, and relatively vulnerable social status due to lower income. Meanwhile, both gender above 50 years old faced remarkably high chance of CHE, which seems to be caused by complex health risk behaviors and chronic diseases. Conclusion: Such results implied not only that gender is an important determinant of CHE, but also other determinants of CHE differ according to gender, which suggests a necessity of gender-based CHE support and rescue policy.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.304-311
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• 2022

Construction inspection is a crucial stage that ensures that all contractual requirements of a construction project are verified. The construction inspection capabilities among state highway agencies have been greatly affected due to budget reduction. As a result, efficient inspection practices such as risk-based inspection are required to optimize the use of limited resources without compromising inspection quality. Automated prioritization of textual requirements according to their criticality would be extremely helpful since contractual requirements are typically presented in an unstructured natural language in voluminous text documents. The current study introduces a novel model for predicting the risk level of requirements using machine learning (ML) algorithms. The ML algorithms tested in this study included naïve Bayes, support vector machines, logistic regression, and random forest. The training data includes sequences of requirement texts which were labeled with risk levels (such as very low, low, medium, high, very high) using the fuzzy logic systems. The fuzzy model treats the three risk factors (severity, probability, detectability) as fuzzy input variables, and implements the fuzzy inference rules to determine the labels of requirements. The performance of the model was examined on labeled dataset created by fuzzy inference rules and three different membership functions. The developed requirement risk prediction model yielded a precision, recall, and f-score of 78.18%, 77.75%, and 75.82%, respectively. The proposed model is expected to provide construction inspectors with a means for the automated prioritization of voluminous requirements by their importance, thus help to maximize the effectiveness of inspection activities under resource constraints.

• Asia Marketing Journal
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• 제15권4호
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• pp.223-241
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• 2014

In May 2012, the collaboration of Hana Bank, top financial service company, and SK Planet, top telecommunication service provider, introduced a new credit card that was filled with all-in-one benefits into the market. Leveraging strong infrastructure of two companies, each top in its own industries, the awareness and preference of 'Club SK Card' brand rapidly increased to about 25% in less than one year. Moreover, this new card was enthroned in the most sold credit card of year 2012, accounting for a market share of 7.2% in the credit card market and more than 80% in the mobile credit card market. To make these results possible, 'Club SK Card' marketing team developed an effective marketing communication strategy which followed the 6M model. The mission of the marketing communication strategy was simple and clear. It was to deliver the card's inherent strengths on consumer benefits that come from the support of subsidiary and affiliated companies of SK Planet. According to OK Cashbag data, the marketing communication team selected the appropriate target consumers and approached them directly, inducing actual purchase behavior. The target consumers received straightforward messages about 'Club SK Card' and were led to join in the new membership at their most frequently visited supermarket or franchise restaurant. The straightforward communication message embedded in an eye-catching commercial ad with a hook song accompanied with a dance was delivered via public media. The ad became so popular that many other television programs quoted or made parodies of the ad. Courtesy of the commercial ad, the brand name disseminated rapidly and widely among the public. In October 2012, an ingenious planning and persistent implementation of the communication strategy results 'Club SK Card' to be ranked top in brand awareness as well as advertising preference tests.

• 농촌의학ㆍ지역보건
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• 제34권2호
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• pp.155-167
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• 2009

본 연구는 국내 건강도시사업을 추진하는 지역사회 담당자를 대상으로 세계보건기구의 건강도시 특성을 중심으로 건강도시 추진 현황을 살펴봄으로 국내 건강도시의 나아가야 할 방향을 위한 기초자료를 제공하고자 실시되었다. 2007년 2월부터 2007년 12월까지 우편설문조사를 하였는데, 설문문항은 건강도시 현황, 건강도시 담당자의 일반적 특성, 건강도시 기본 특성, 건강도시에 대한 자체평가, 건강도시 발전방향 등으로 구성하였다. 전체 23개 지역사회 중 도시가 11개(47.8%), 농촌이 12(52.5%)였으며, 건강도시 담당부서는 보건소가 73.9%로 대부분이었다. 건강도시 담당자는 여자가 60.9%, 연령은 40대가 65.2%, 건강도시 경력은 6~12개월인 경우가 34.8%로 가장 많았다. 건강도시 기본 특성을 살펴보면, 건강도시 자체 예산 확보(91.3%), 도시건강 프로파일 작성(91.3%), 협력대학 기술지원(82.6%), 건강도시 조례 제정(78.3%), 주민참여(78.3%), 운영위원회 구성(73.9%), 생활터 접근 사업(69.9%), 건강도시 네트워크에 적극적 참여(69.6%) 등이 높았으며, 부서간 협력 활성화(34.8%), 건강도시 장기 계획 수립(39.1%), 공약 및 시정방향에 건강도시 포함(43.5%), 취약 계층 대상 사업(47.8%), 전담조직 구성(47.8%), 건강도시 자체 세미나 실시(47.8%)가 낮았다. 도시농촌간 건강도시 전담조직의 경우 도시가 72.7%가 구성되어 있는 반면 농촌은 25.0%만 구성되어 통계적으로 유의한 차이를 보였다(p<0.05). 건강도시 전담조직 유무에 따른 건강도 기본특성을 살펴보면, 전담조직이 있는 경우 부서간 협력, 주민참여, 생활터 접근, 건강도시 네트워크가 잘 된다고 응답하였다(p<0.05). 건강도시 수행시 사업개발과 예산확보가 어려웠으며, 건강도시 사업시 우선 고려 사항으로는 부서간 협력이 34.8%로 가장 높았다. 건강도시성공을 위한 핵심인물로는 82.6%에서 단체장이라고 응답하였고, 국내 건강도시 활성화를 위해 향후 역할을 할 기관으로는 중앙정부인 보건복지가족부(52.2%)가 가장 높았다. 국내에서는 AFHC 회원도시 수가 급속히 증가하여 왔으나 건강도시를 위한 정치적 지원과 전담조직의 설립 등이 미진하며, 건강형평성을 고려한 사업 및 부문간 협력에 의한 포괄적인 건강도시 경험이 축적되어 오지 못하였다. 이를 해결하기 위해서는 건강도시의 정의와 선진 건강도시들이 제시하고 있는 원칙 및 특징에 충실하도록 노력하여야 할 것이다.

• 수산경영론집
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• 제17권1호
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• pp.77-106
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• 1986

In the field of fisheries, there is at the apex Central Federation of Fishery Cooperatives, established under the Fishery Cooperatives Law(1962), It is a multipurpose organization with a membership of 105 cooperatives, 87 regional cooperatives, 15 business-type cooperatives and 3 manufactures' cooperatives. Accordingly, this thesis examines the marketing of fishery cooperatives in Korea, and in particular considers the marketing channel strategy of fisheries products. No company can perform by itself all the activities involved in the production and distribution of its products and services to its final markets. It must work with other firms to get the job done. Thus marketing channel firms of the fisheries products include primarily the fishery cooperatives, the licensed In the field of fisheries, there is at the apex Central Federation of Fishery Cooperatives, established under the Fishery Cooperatives Law (1962). It is a multipurpose organization with a membership of 105 cooperatives, 87 regional cooperatives, 15 business-type cooperatives and 3 manufactures' cooperatives. Accordingly, this thesis examines the marketing of fishery cooperatives in Korea, and in particular considers the marketing channel strategy of fisheries products. No company can perform by itself all the activities involved in the production and distribution of its products and services to its final markets. It must work with other firms to get the job done. Thus marketing channel firms of the fisheries products include primarily the fishery cooperatives, the licensed dealers and the merchant middlemen. The goal of marketing is in matching of segments of supply and demand. Every producer seeks to the link the marketing channel firms that will help it accomplish its objective best. This thesis tries to attempt to improve the present Korean Fishery Cooperatives marketing activities. The purpose of the operation of fishery cooperatives is to guarantee the profits of fisherman as well as the interests of general consumers by eliminating the inordinate profits of middlemen and by narrowing other market margins. Fishery cooperatives marketing activity functions forming a self-helf organization for economic protection of producers themselves, and acting as a market reformational institution through its transaction by group. The following are the characteristics of fishery cooperatives marketing. \circled1 Fishery cooperatives is organized with an economic factor and a personnel factor. \circled2 Fishery cooperatives is non-profit organization. \circled3 The members of fishery cooperatives is independent constitution of economy, but they are closely connected with the cooperative. \circled4 Fishery cooperatives is a mutual aid organization. The objective of an efficient marketing strategy may be well described by the common saying provides the right product at the right time, the right place, and the right price. But it is quite true that the Korean Fishermen's Cooperative can be said to owe its development to the successful implementation of the marketing system. The use of the marketing system has resulted in the following marketing strategy. 1. The direct marketing system. \circled1 The cooperation between the fishery cooperatives and the other cooperative through the collection and delivery center. \circled2 The selling between the fishery cooperatives and the large scale retailers through the process industry. 2. The vertical marketing system. \circled1The fishermen's cooperative to be nominated by wholesaler in the terminal market. \circled2 Contracted vertical marketing system. \circled3 Abolition of selling by double auction in the landing and the terminal market. 3. The physical distribution system. \circled1 The need for adoption of cold chain system to connect production directly to consumption. \circled2 The need for more expansion of landing markets and terminal market facilities. Solutions to the problems of the Korean fishery are made possible through effective functioning of cooperative marketing activities of fishery products. The marketing concept of fishermen's cooperative lies in the satisfaction of consumer needs. According to the marketing concept fishermen's cooperative should try to satisfy customer's needs through a coodinated set of activities that allows the organization to achieve its goal. Providing satisfaction to customers is the major trust of the marketing concept. To do this, a business must find out what will satisfy customers. With this information the cooperative sells to the greatest possible number of customers through the most efficient sales and marketing channels. Economic rationality of fishermen's cooperative marketing lies in reduction of marketing cost and elimination of intermediate institutions. Cooperative marketing and direct marketing are both indispensable marketing factors for a new cooperative organization among the manu ways. The cooperation between the fishermen's cooperative and the others cooperative, and vertical marketing system are the most necessary ones. Propulsion of cooperative marketing system could not be successful without the support of the marketing instituion's help. Consequently, successful cooperative marketing ought to lead to the necessity not only for the improvement of marketing organization, but for the application of a new marketing concept in the fishermen's cooperative.

• 디지털융복합연구
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• 제12권8호
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• pp.397-410
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• 2014

본 연구의 목적은 한국 성인의 건강행태군집 유형을 확인하고 이와 관련된 요인들을 파악하는 것이다. 이를 위해 2009년도 국민건강영양조사 자료를 이차분석 하였다. 신체활동, 흡연, 음주 변수를 이용하여 19세부터 64세까지 성인 대상자의 건강행태유형을 군집분석으로 파악하였고 이 유형들과 인구사회학적 특성 및 건강상태의 연관성을 확인하기 위해 SPSS WIN 21 복합표본설계 분석모듈을 이용하여 카이제곱 검정과 다항로지스틱 분석을 실시하였다. 한국 성인의 건강행태군집 유형은 건강증진군, 흡연군, 음주군, 수동적 태도군, 그리고 위험행위군의 총 5개 유형으로 분류되었고 수동적 태도군에 속하는 대상자의 빈도가 47.7%로 가장 높았다. 인구사회학적 특성, 고혈압, 그리고 우울증상 경험은 대상자가 건강증진군 보다는 나머지 4개의 건강위해 행위군에 속하는 것과 유의한 연관을 보이는 변수였다. 본 연구결과는 건강증진프로그램이 단일 행위에 초점을 맞추기 보다는 대상자의 건강행태유형에 초점을 맞추어 통합적으로 기획되어야 함을 보여주고 있다. 추후연구에서는 인구사회학적 특성과 건강상태뿐만 아니라 사회적 지지나 사회적 네트워크와 같은 사회심리적 요인과 건강행태유형과의 관계를 규명하는 것이 필요하다.

• 한국전문물리치료학회지
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• 제4권2호
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• pp.18-35
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• 1997

The purpose of this study were to determine causes of low back pain in bus drivers who usually work in prolonged sitting position and to find the relationship of back pain with general characteristics and work environmental characteristics, stress symptoms, to com맹re lordosis angle of habitual driving posture and resting posture in low back pain group and non-low back pain group, and to use this result as a basis for improvement of work environment and comprehensive rehabilitative management of low back pain. Ninety-eight bus drivers were selected from the membership of an urban transit union in Seoul. These informations were collected from May 1, 1997 to May 25, 1997 by means of structured questionnaires and X-ray findings. These data were analyzed by $x^2$ test, t-test, logistic regression using SAS. The major results were as follows: 1. Of the respondents, 66.3% of bus drivers were found to be experiencing back pain. 2. Of the respondents of low back pain groups, 78.5% reported that major cause of low back pain was due to prolonged sitting. 3. The group with experiences of frequent or continuous vibration had more low back pain (p<0.05). There were no significant differences among other work environmental factors. 4. Average stress score was significantly higher in the group with low back pain than in the group without low back pain (p<0.05). 5. The results of the logistic regression analyses were statistically significant vibration from seat and stress score among the risk factors (p<0.05). 6. Averaged lordosis angle of habitual driving posture was $7.6{\pm}14.9$ degrees in low back pain group, $16.5{\pm}8.7$ degrees in non-low back pain and averaged lordosis angle of resting sitting posture was $10.8{\pm}13.7$ degrees in low back pain, $18.9{\pm}9.6$ degrees in non-low back pain group but the difference in mean lordosis angles of two groups was not statistically significant. The results of this study indicate that professional drivers developed chronicity of low back pain due to unfit seat, poor habitual posture and stress from vibration or other risk factors. Therefore, there is need to improve work environment, i.e. enough resting, to set a seat to support lumbar spine properly and to provide comprehensive rehabilitation program including early diagnosis, proper treatment and education for self help management.