• 한국환경복원기술학회지
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• 제4권4호
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• pp.46-55
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• 2001

Analysis of fish farm influences on stream water quality may provide basic informations on watershed management to reduce environmental impact due to fish farm development and to conserve stream water quality in forested watershed area. In this research stream water qualities around Mt. Baegun area were monitored seasonally for three years. Due to the increase of pH in effluent water from the fish farm it was believed that alkalization of stream water can be accelerated by large scale development of fish farms in the forested watershed area. As a result of regression analyses, the linear equation of pH of influent and effluent water of fish farm was, pH of effluent water of fish farm = $0.6234{\times}pH$ of influent water of fish farm + 2.6263. Also, the linear equation of electrical conductivity of influent and effluent water of fish farm was electrical conductivity of effluent water of fish farm = $1.7275{\times}$electrical conductivity of influent water of fish farm - 14.007. Negative effects on stream water quality were observed by indications of increase in electrical conductivity and water temperature of effluent water from the fish farm. Decreases in physicochemical indices such as the amount of dissolved oxygen, total amount of cation and total amount of anion in effluent water from the fish farm were also negative aspects in downstream ecology. It is recommended that water purification system as well as environmentally-friendly fish farm design should be incorporated to large scale fish farm development plan in forested watershed area.

• 환경영향평가
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• 제16권4호
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• pp.267-275
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• 2007

In this study, relationship between the air pollution of Siheung city and the relative contribution of automobiles to the city's pollution was evaluated for the first time. Then, new air pollution exposure index was developed through simulation. Using the newly developed index, two different urban development scenarios were compared to present a sustainable urban development plan to reduce air pollution from the land utilization point of view. According to the result of this simulation, air quality of the city was found to be affected significantly by human activities. More populated area showed worse level of air quality. Any development in the city resulted in more automobile activity and deterioration of air quality. This simulation result thus explains that a rapid increase of automobiles accompanied by the land development near local roadsides in the city is the major cause of air pollution in Siheung city. In this study, if urban activities are vigorous in an area with high air pollution, people are more likely to be exposed to air pollutant under the bad environmental conditions. On the other hand, if urban activities are less vigorous in an area with high pollution or if urban activities are vigorous in an area with less pollution, the environmental condition was positive. The APEI (Air Pollution Exposure Index) was developed based on these considerations. Scenarios 1 and 2 were compared and analyzed using APEI. In result, scenario 1 is the case in which land is developed and used in an environmentally favorable manner. From this study, it was proved that the impact of air pollution on human health can be minimized with proper land use. The result form the current study can be used as the basic information to solve problems from improper land utilization and air pollution (by road traffic). It also can be utilized to evaluate air pollution level according to land use and road characteristics and to help to choose the best location of land use to comply with the road function and status.

• 한국콘텐츠학회논문지
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• 제17권4호
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• pp.95-107
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• 2017

최근 기후변화의 영향에 의해 재난의 규모가 점차 대형화 되어감에 따라 사회 및 국민경제에 미치는 영향이 증대되고 있다. 그러나 기존의 재해손실 통계는 직접적인 인명피해를 제외하면 물리적인 피해에만 국한되어 있어 피해규모가 과소 집계되는 문제가 있다. 이로 인해 피해자의 보상 및 정부 지자체의 재난정책 수립에도 장애요소로 작용되고 있다. 따라서 본 연구는 그동안 간과되어 온 사회경제적 직 간접 손실의 피해항목을 조사 분석하여 국내의 실정에 맞는 기본통계 항목을 도출하는 데 그 목적이 있다. 이를 위해 국내외의 재해피해 통계 현황과 선행연구 등을 검토하여 사회경제적 직 간접 손실에 대한 개념 및 프레임워크를 설정하고, 예비 통계항목을 도출하였다. 이후, 통계항목의 선별기준을 정립하여 최종 통계항목을 선정하였다. 본 연구의 결과는 풍수해의 사회경제적인 영향과 피해규모를 산정하고 예측하는 기술개발 연구에 기초자료로 활용될 수 있다.

• 한국수자원학회논문집
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• 제34권6호
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• pp.673-685
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• 2001

본 연구에서는 수자원 계획 및 가뭄관리를 위해 비교적 넓은 지역에 활용할 수 있는 가뭄지표 산정을 위해 강우량, 일최고기온, 유출량, Palmer 지수 등의 다양한 계열의 자료를 이용하였다. 가뭄감시를 위해 가뭄단계를 가뭄주의보, 가뭄경보, 비상가뭄으로 구분하였으며, 각각 가뭄단계는 산정된 지수의 25%, 10%, 5%에 대한 비초과확률치로 정의하였다. 또한 가뭄지수들이 과거의 가뭄을 얼마나 잘 표현하고 있으며, 가뭄감시를 위한 가뭄지표로 활용할 수 있는가를 판단하기 위해 과거 가뭄을 재현하여 가뭄단계의 일치성과 상관관계를 분석하였다. 그 결과 9개월과 12개월 강우량지표와 PDSI 지표가 최대의 일치성과 상관관계를 나타내었다. 이렇게 산정된 결과는 다양한 계열의 실측치에 근거하고 있으며, 간단한 계산에 의해 산정 될 수 있기 때문에 유역의 가뭄감시시스템의 구축을 위한 기초자료로 활용될 수 있을 것으로 판단된다.

• 대한교통학회지
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• 제18권3호
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• pp.7-16
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• 2000

도시 근로자들의 높은 승용차 이용율과 낮은 재차인원율으로 인해 대도시에서의 교통혼잡이 가중됨에 따라 중앙정부 및 지자체에서는 적극적인 도시 교통수요관리 정책을 시행할 계획이며 이에 따라 다양한 교통수요관리 정책을 어디에 어떻게 적용해야 하는가에 대한 관심이높아지고 있다. 본 연구는 미국 텍사스 주 근로자의 통행특성 변화를 분석하여 도시규모, 직장위치, 그리고 직업종류 변화에 따른 낮은 재차인원율과 높은 승용차 이용율을 나타내는 직장 소재지 및 직업종류를 도출하였다. 연구 결과 대도시에서는 도시 및 도시주변 직장 근로자들이 낮은 재차인원율을 나타냈으며 중도시에서는 도심 및 도심주변 근로자들이 낮은 재차인원율을 나타냈고 소도시에서는 도시 및 도시주변 근로자들이 낮은 재차인원율을 나타냈다. 서비스업 근로자는 모든 도시규모에서 낮은 재차인원율을 나타냈다. 한편 승용차 이용율은 대도시 서비스업 근로자들이 높은 승용차 이용율을 나타냈으며 소도시의 도심과 도심주변 소재 직장 근로자와 기본업 근로자들이 높은 승용차 이용율을 나타냈다.

• 한국정보시스템학회지:정보시스템연구
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• 제10권1호
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• pp.323-352
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• 2001

Venture business plays a great role in creating national competitive power in every country. In particular, software venture business can mostly belong to manufacturing business, and takes the top seat of core industry as the basis of globalization, informatization and localization as well as the driving force of national competitive power. However, software venture business still has some risks in the whole area of business administration including the process of business starting. There are also problems to be solved in such areas as manager's ability, leadership, talent, level of technical development, marketing channel, recruiting of marketing specialists, financial plan and fund raising. In this respect, this study divides 102 software venture businesses into two; business in the stage of growth and matured business through the analysis of questionnaire and analyzes their present managerial conditions according to their characteristics after classifying them into four categories such as general management, technical development, marketing, finance and accounting. Therefore, this study attempts to provide the basic data useful for business activities of software venture business from now on. The results are as follows; First, it can be judged that software venture businesses make efforts for their technical development in their character, and that they make a great investment in research and development. Consequently, it can be believed that this kind of investment must be continued in the future. Second, it can be seen that they are not much interested in marketing and its manpower. In fact, software venture businesses develop products technically at the risk of their life, while marketing plays an important role in the continuity of business. Thus, it is necessary for them to invest in the supplement of manpower in marketing. Third, it is observed that they generally have some difficulties in raising money from outside. By the way, it. is believed that this problem will be solved by appealing to the persons interested such as investors and creditors, if evaluation system would be developed more exquisitely so that their accounting and technical value may be appraised.

• 디지털융복합연구
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• 제16권4호
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• pp.267-276
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• 2018

본 연구는 우울감있는 성인의 나이에 따른 자살생각에 영향을 주는 요인을 파악하여 자살시도를 사전에 예방하기 위한 간호중재 시 기초자료를 제공하고자 시도되었다. 본 연구대상자는 보건복지부와 질병관리본부에서 시행한 2013-2015년도 국민건강영양조사 대상자 총 15,568명 중 '2주 이상 연속 우울감 여부' 문항에 '있음'으로 명확하게 응답한 30세 이상 1,202명을 대상으로 하였다. IBM SPSS 23.0 프로그램을 이용하여 복합표본계획파일을 생성한 후 가중치를 부여하여 분석하였으며, 유의수준은 .05로 하였다. 본 연구결과는 다음과 같다. 자살생각에 유의한 영향을 준 요인으로는 소득(50-60대), 가구원수(50-60대), 결혼상태(40-50대), 주관적 건강(30-50대, 70대 이상), 스트레스(30대, 50대 이상), 경제활동상태(50대), 당뇨(60대 이상), 음주량(60대), BMI(40대)로 나타났다. 따라서, 자살예방 계획 및 중재 시 대상자의 일반적 건강관련 요인들을 고려한 맞춤식 중재가 필요하다.

• 한국항해항만학회지
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• 제44권2호
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• pp.88-97
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• 2020

In the past 20 years, passenger and cargo transportation performance at the international passenger ports in Korea have increased by 8.6% on the compound annual growth rate, respectively. The Korean government had expected to continue expanding the market of car ferries and the government included plans for the development of additional routes and lanes with neighboring countries such as China, J apan, and Russia as a part of the Plan of the Korean Ministry of Oceans and Fisheries in 2019. However, compared to the development of routes, the management and operation of passenger terminals are inefficient. The purpose of this paper was to introduce the overall improvement of the passenger terminal operating system that reflects the recent changes in the supply and demand of international passenger vessels and the needs of the government and private sector passengers. To this end, a basic survey was conducted on the status of operations and facilities at the Busan International P assenger Terminal and a questionnaire survey was administered on the subject of use. The results of the survey were analyzed using the IPA model. As a result of the analysis, three items in the operation sector, three items in the facility sector, and four items in the system sector of the Busan International Passenger Terminal were identified as in need of improvement. Based on the results, the need for investment to improve the international passenger terminal operating system is suggested.

• 가정과삶의질연구
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• 제31권5호
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• pp.19-32
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• 2013

The purpose of this study was to identify the influences of psychological independence(functional independence and emotional independence) and career decision-making self-efficacy(self-estimation, career goal, occupational-knowledge, and problem solving) on career maturity(preparation, objective, decisiveness, and certainty) among adolescents. The subjects were 447 students in the second grade of middle school and high school in D. The questionnaire consist of measures of psychological independence, career decision-making self-efficacy, and career maturity. The data were analysed with factor analysis, Cronbach's ${\alpha}$, t-test, ANOVA, correlation and multiple regression by using the SPSS(SPSS/WIN 19.0) program. The major results were as follows. First, adolescents' the career maturity was significantly different depending on the socio-demographic variables. Second, it was shown that middle and high school students have a statically relation, in a relation among psychological independence, career decision-making self-efficacy, and career maturity. Third, it was found that psychological independence and career decision-making self-efficacy gave statistically meaningful influence on the career maturity of adolescents. This study is significant in that it suggests a plan for improving career maturity, and provides a basic material to improve one's active role in their parents. In addition, the results of this study can be used as a fundamental reference in career development programs and career-counseling centers at schools for enhancing adolescents' career development and success.

• Spatial Information Research
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• 제9권1호
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• pp.125-135
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• 2001

집중호우로 인한 산사태, 낙석, 지반침하 등으로 인한 지반붕괴로 인명 및 재산 피해가 계속되고 있으며, 이러한 특히 댐, 교량, 도로, 터널, 공단 등 국가 주요 시설물에 대한 피해가 우려되고 있다. 따라서 이러한 지역에 대한 지반 안정성 평가가 우선적으로 이루어져야 하고 이러한 평가에 근거에 대책마련을 해야한다. 본 연구에서는 기존의 산사태 취약성 분석 및 검증 결과를 이용하여 주요 시설물인 전국 40개 댐 주변지역에 대해 지형, 지질, 토양, 임상, 토지 이용, 확률강우량도, 인공위성 영상 등 공간자료를 수집, 공간 DB로 구축하였다. 그리고 구축된 공간 DB를 검색 및 안정성 분석을 할 수 있는 공간 정보시스템을 개발하였다. 이 시스템은 ArcView 3.2의 스크립트 언어인 Avenue를 이용하여 개발되었고 풀다운 메뉴 및 아이콘 메뉴방식을 사용하여 사용하기 쉽게 개발되었다. 개발된 시스템의 활용성을 검증하기 위해 안동댐 주변 지역의 광역적 지반 안정성 평가를 실시하였다. 구축된 DB 및 개발된 시스템은 광역적 지반 안정성 평가 및 관리에 활용될 수 있으며, 지반 안정성 평가 결과는 댐 등 주요 시설물의 지반 안정성을 평가함으로서 재해예방 및 지반관리에 기초자료로 활용될 수 있다.