• 한국항해학회지
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• 제18권2호
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• pp.41-56
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• 1994

This paper was a part of the risk management in planning a channel. It utilized Korea Marine Training & Research Institutes(KMTRI) which Houses a real-time, full-mission shiphandling simulator to examine the safety of the ship's transit in the planned channel of Asan port. 6 competent Captains participated in this study. The vessel modelled was a 60,000-ton ship. The two variables(factors) examined were environ-mental conditions such as flood-and-ebb current condition and day-and-night condition. The two variables were combined to produce four experimental conditions. To evaluate the safety of the environmental conditions, two categories of performance measures were analyzed. They were vessel's proximity to channel boundary and vessel controalbility. The findings regar-ding the effects of environmental conditions were as follows : - Closest Point of Approach(CPA) to channel boundary was enough for 60,000-ton ship to transit th-rough the channel with 99.999% confidence level. - Closest Point of Approach(CPA) to channel boundary further was under against-current condition than under with-current condition. -Vessel controlability was better under against-current condition than under with-current condition. -Vessel controlability was better under inbound transit than under outbound transit.

• 대한조선학회논문집
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• 제45권6호
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• pp.579-589
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• 2008

In the past few years, there are many studies and researches of the underwater vehicles which are carried out its mission using sonar sensors. MSCL(Marine System Control Lab.) at Inha University developed test-bed small ROV, ISRO. ISRO is an open-frame type and has 4 thrusters. ISRO can control 4 motions i.e surge, sway, yaw and heave with sonar sensors. ISRO is developed for inspection of ship hull, marine structure, plant of lake or river and so on. When ROV ISRO inspects something, it is necessary to control the position of ROV ISRO's for the movement and anti-collision with structures in the underwater. In this paper, we deal with the development of a small ROV and verification of the position control system via simulation and experiment using sonar sensors.

• 한국실내디자인학회논문집
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• 제32호
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• pp.72-81
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• 2002

Southeast Asian region cruise market is expected to be stable or grow in the near future depending on the region's economy. Star Cruises company, which has entirely dominated the regional market since 1998, has attempted to expand beyond traditional cruise routes in Southeast Asian region and develop new markets in Thailand and Dubai. Such a situation urges Korean shipyards to study on Southeast Asian region based cruise ships. This study is to suggest directions for planning of interior spaces of Southeast Asian region based cruise ships. In order to accomplish this purpose the market situation is analyzed and the adequate ship's tonnage(70,000grt class) is decided. According to mission-based design process the sizes of standard staterooms are set up first and then the sizes of the important structural parts of ship are calculated. Through analyzing the 26 cruise ships of 70,000grt class the kinds, locations and sizes of public rooms are grasped. And we inspect 4 cruise ships of Star Cruises, which are now being operated in Southeast Asian region to understand design characteristics of interior spaces.

• 토지주택연구
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• 제4권2호
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• pp.153-165
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• 2013

Deficiency in access to housing is a major manifestation of poverty. In the city of Bangalore, the poor and the marginalized constitute nearly 30 percent of the 8.47 million population (2011 Census) and are living in the nearly 640 slums in addition to squatter settlements and pavements. The city sprawls over an area of 741 sq. kms (2007 estimates) and the poor have very little access to personal living space. According to the Integrated Housing and Slum Development Program guidelines, each household with four average members should have 25 sq. meters of living space. In the case of poor of Bangalore, the attainment of even this minimum is a far cry. In recognition of this acuteness with regard to the problem of housing, the government has introduced schemes like the Jawaharlal Nehru National Urban Renewal Mission and the Rajiv Awas Yojana. And these schemes have witnessed only a limited success. Whenever the problem of housing for the urban poor is considered, the state and location of slums get into focus. The people living in slums are a crucial and inevitable support to the city economy. Relocation of slum people is fraught with loss of productivity and strain on the transport system and on the incomes of the poor. Their needs like housing, schooling, health centers, creches, hospices etc. have to be provided for. Financial support to the poor with regard to their housing needs will have to be imaginatively provided by banks and related institutions.

• 한국문헌정보학회지
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• 제37권2호
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• pp.269-289
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• 2003

본 연구의 목적은 도서관의 사명 및 이상을 수립하기 위한 기초적인 연구이다. 그 연구결과는 다음과 같다. 우선, 조직의 사명과 이상 수립을 다루고 있는 기획, 전략적 경영, 조직문화 등에서 기술된 관련용어들의 개념과 특성을 살펴보고자 한다. 둘째, 도서관의 사명과 이상 수립의 중요성과 절차 등을 설명하고자 한다. 셋째, 국내ㆍ외 도서관의 사명과 이상을 조사 분석하고자 한다. 넷째, 도서관이 사명과 이상을 수립하는데 기반으로 삼을 수 있는 기본적인 그 역할들을 논의하고자 한다. 다섯째, 우리나라 도서관들이 사명과 이상 중심의 바람직한 경영관리 방안을 제시하고자 한다.

• Clinical and Experimental Pediatrics
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• 제63권12호
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• pp.477-482
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• 2020

The childhood obesity pandemic has emerged as an important public health problem in many countries. Obese children are likely to become obese adults, and adult obesity is associated with an increased risk of morbidity. Therefore, controlling the childhood obesity epidemic has become a top public health priority worldwide. The current coronavirus disease 2019 (COVID-19) pandemic may significantly impede this important mission and constitute an unprecedented tragedy in the global battle against childhood obesity. This manuscript presents evidence that the COVID-19 pandemic will aggravate the childhood obesity epidemic and lead to significant weight gain in school children by creating an unprecedented obesogenic environment. Within the last few months, many countries took uncompromising measures in response to the COVID-19 pandemic, including school closures and quarantine. While these steps are often necessary to ensure infection control, they may have a significant negative effect on children's mental and physical health. Physical, nutritional, and psychosocial factors that promote obesity in children during this special situation complementarily contribute to an unprecedented obesogenic environment. Large-scale quarantine and home confinement will impose new and unfamiliar stressors on children, thereby worsening the childhood obesity epidemic. Most importantly, adverse childhood events resulting from a predicted increase in domestic violence within the next few months will significantly contribute to this concern. The scenario presented in this review is of paramount public health importance and must be considered during future pandemic planning. Involved stakeholders, including governments, schools, and families, must make all possible efforts to minimize the impact of the COVID-19 epidemic on childhood obesity.

• 해양환경안전학회지
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• 제28권3호
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• pp.441-450
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• 2022

The introduction of autonomous underwater gliders (AUGs) specifically addresses the reduction of operational costs that were previously prohibited with conventional autonomous underwater vehicles (AUVs) using a "scaling-down" design philosophy by utilizing the characteristics of autonomous drifters to far extend operation duration and coverage. Long-duration, wide-area missions raise the cost and complexity of in-water testing for novel approaches to autonomous mission planning. As a result, a simulator that supports the rapid design, development, and testing of autonomy solutions across a wide range using software-in-the-loop simulation at faster-than-real-time speeds becomes critical. This paper describes a faster-than-real-time AUG simulator that can support high-resolution bathymetry for a wide variety of ocean environments, including ocean currents, various sensors, and vehicle dynamics. On top of the de facto standard ROS-Gazebo framework and open-sourced underwater vehicle simulation packages, features specific to AUGs for ocean mapping are developed. For vehicle dynamics, the next-generation hybrid autonomous underwater gliders (Hybrid-AUGs) operate with both the buoyancy engine and the thrusters to improve navigation for bathymetry mappings, e.g., line trajectory, are is implemented since because it can also describe conventional AUGs without the thrusters. The simulation results are validated with experiments while operating at 120 times faster than the real-time.

• 한국농촌건축학회논문집
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• 제23권4호
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• pp.72-79
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• 2021

Religious architecture in the Gwangju and Jeonam regions played the role of local culture, and in particular, cathedral architecture maintains a consistent religious context and seeks to integrate with the local community. This study is to investigate and analyze the overall data to find out the characteristics and meaning of the Eucharistic adoration, which played a central role in the religious aspect and the space in the cathedral, and used it as basic data for the study of local cathedral architecture. The Eucharistic adoration was activated starting from the time when the Eucharist storage room was placed in the Middle Ages, and in 1979, when Pope John Paul II published a letter, and Bishop Na Gilmo of Incheon introduced the Eucharist, the Eucharistic adoration movement was activated in parishes across the country. However, regarding the Eucharistic adoration, a way to use its spatial meaning and religious use is still unknown, even to its believers. The Eucharistic adoration of the cathedral contains the main spiritual function of managing faith rather than the functions of mission, fellowship, and office work. An approach which composes the liturgical spaces in various architectural planning methods is necessary, but the fundamental and religious meaning must not be abandoned.

• Nuclear Engineering and Technology
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• 제56권1호
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• pp.92-99
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• 2024

To minimize the cumulative radiation dose, various path-finding approaches for single agent have been proposed. However, for emergence situations such as nuclear power plant accident, these methods cannot be effectively utilized for evacuating a large number of workers because no multi-agent method is valid to conduct the mission. In this study, a novel algorithm for solving the multi-agent path-finding problem is proposed using the conflict-based search approach and the objective function redefined in terms of the cumulative radiation dose. The proposed method can find multi paths that all agents arrive at the destinations with reducing the overall radiation dose. To verify the proposed method, three problems were defined. In the single-agent problem, the objective function proposed in this study reduces the cumulative dose by 82% compared with that of the shortest distance algorithm in experiment environment of this study. It was also verified in the two multi-agent problems that multi paths with minimized the overall radiation dose, in which all agents can reach the destination without collision, can be found. The method proposed in this study will contribute to establishing evacuation plans for improving the safety of workers in radiation-related facilities.

• 대한공간정보학회지
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• 제23권1호
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• pp.89-99
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• 2015

최근 국내 도시개발 업계의 제3세계 개발도상국가 도시계획용역 및 도시개발사업 참여기회가 크게 증대하는 추세이며, 이는 국내 개발여건 침체국면 타개를 위한 유효 대안으로서 크게 기대되고 있다. 그러나 대부분 개발타당성 검토과정에서부터 당면하는 애로사항 중 하나가 당해 개발도상국의 기초통계자료 및 공간정보 부재라 하겠다. 국가지리정보나 수치지도 등의 구축은 개도국 차원에서 단기간 내 완성하기는 어렵기 때문에 따라서 개발참여를 위한 기초조사, 분석 및 기본계획 단계에서부터 큰 리스크를 감수할 수밖에 없는 것이 현실이다. 본 연구는 이러한 맥락에서 아프리카 북단에 위치한 알제리의 밥 에주아흐 지역을 대상으로 대체적 방법을 통해 지역현황 분석 및 기본계획 작성에 필요한 개략적인 지역 베이스맵 준비과정을 시연해 봄으로써 자료한계 문제를 극복하기 위한 대안을 제시해 보고자 한다. 이를 위해, 온라인에서 획득 가능한 맵타일로부터 모자이크 맵을 구축하고 위성사진을 기반으로 건축물 특성자료를 구축하며, 수치입력 방법으로 도로 네트워크를 구축하는 등 일련의 기술적 과정을 예시해 보고자 한다. 또한 이렇게 구축된 베이스맵에 근거해 기초적 마스터플랜 개념도를 예시해 봄으로써 그 응용 가능성을 예시해 보고자 한다.