• 한국측량학회:학술대회논문집
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• 한국측량학회 2007년도 춘계학술발표회 논문집
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• pp.417-420
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• 2007

Mobile facility management system is a on-site management tool to collect and update various facility data. But there is a chance to make a data inconsistency between lot of concurrent workers. And facility management system requires to keep records about work log within a certain period of time. This paper describes the design and implementation of mobile facility management system, which provide efficient data synchronization mechanism using version managent technique on large facility data in concurrent work environment. And proposed system is able to keep workers update log persistently.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2003년도 학술대회논문집
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• pp.349-354
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• 2003

Airport facility is infrastructure that become external creditworthiness and linear measure of country competitive power. Among them, receive and supply of electric power facility of airport is very important in peculiarity, trustability, safety side of airport. In this parer, sorted domestic airline as 4 classes by code to accomplish standardization for receive and supply of electric power facility of airport. And established justice and coverage about receive and supply of electric power facility using without any standard present and analyze problem for receive and supply of electric power facility of existing airport and presents standard. Finally, present standard single-line diagram by airport grade and system grade standard of receive and supply of electric power facility of airport.

• 한국치위생학회지
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• 제16권4호
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• pp.585-590
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• 2016

Objectives: The purpose of the study was to investigate oral health-related behaviors of some elementary school students by installation of toothbrushing facility. Methods: A self-reported questionnaire was completed, out by 377 elementary school students with toothbrushing facility, and by 260 elementary school students with no toothbrushing facility in M city from November to December, 2015. The data were analyzed by ${\chi}^2$-test, t-test and stepwise multiple regression analysis using SPSS 12.0 program. The questionnaire comprised toothbrushing practice(2 items), satisfaction of toothbrushing facility(1 item), oral health knowledge(4 items), fluoride recognition(1 item), and necessity of fluoride mouthrinse(1 item). Results: The level of oral health knowledge was high in toothbrushing facility school. But toothbrushing practice was higher in school of no toothbrushing facility(63.8%) than the school with toothbrushing facility(49.1%)(p<0.001). The number of brushing times a week was also higher in school of no toothbrushing facility(1.98 times) than the toothbrushing facility school(1.59 times)(p=0.011). The dominant reason for no brushing was not recognition(65.8%) in toothbrushing facility school, lack of places(61.3%) in non toothbrushing facility school. Conclusions: In order to improve the oral health in elementary school students, it is necessary to provide toothbrushing education and toothbrushing facility in elementary schools.

• Wind and Structures
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• 제10권5호
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• pp.401-420
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• 2007

Field measurements of the wind-induced response of two residential reinforced concrete buildings, among the tallest in the world, have been performed during two typhoons. Natural periods and damping values have been determined and compared with other field measurements and empirical predictors. Suitable and common empirical predictors of natural period and structural damping have been obtained that describe the trend of tall, reinforced concrete buildings whose structural vibrations have been measured in the collection of studies in Hong Kong compiled by the authors. This data is especially important as the amount of information known about the dynamic parameters of buildings of these heights is limited. Effects of the variation of the natural period and damping values on the alongwind response of a tall building for serviceability-level wind conditions have been profiled using the gust response factor approach. When using this approach on these two buildings, the often overestimated natural periods and structural damping values suggested by empirical predictors tended to offset each other. Gust response factors calculated using the natural periods and structural damping values measured in the field were smaller than if calculated using design-stage values.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 추계학술대회논문집
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• pp.131-142
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• 2000

Facility layout is the early stage of system design that requires a mid-term or long-term plan. Since improper facility layout might incur substantial logistics cost including material handling and re-installment costs, due consideration must be given to decisions on facility layout. Facility layout is concerned with low to arrange equipment necessary for production in a given space. Its objective is to minimize the sum of all the products of each equipment's amount of flow multiplied by distance. Facility layout also is related to the issue of NP-complete, i.e., calculated amounts exponentially increase with the increase of the number of equipment. This study discusses Hybrid GA developed, as an algorithm for facility layout, to solve the above-mentioned problems. The algorithm, which is designed to efficiently place equipment, automatically produces a horizontal passageway by the block, if a designer provides the width and length of the space to be handled. In addition, this study demonstrates the validity of the Algorithm by comparing with existing algorithms that have been developed. We present a Hybrid GA approach to the facility layout problem that improves on existing work in terms of solution quality and method. Experimental results show that the proposed algorithm is able to produce better solution quality and more practical layouts than the ones obtained by applying existing algorithms.

• 한국비블리아학회지
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• 제24권3호
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• pp.199-216
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• 2013

본 연구는 관련 연구와 시설 및 시설의 관련 개념들을 분석하고, 그 분석 결과를 가지고 시설에 대한 온톨로지적 개념 정의를 실시하였다. 첫째, 시설 개념의 관계로 포함 관계, 사례 관계, 규칙 관계, 속성 관계, 부분-전체 관계를 사용하여 정의하였다. 둘째, 시설은 여러 부분들이 기능적으로 통합성을 이루는 물리적 개체로 규정하였다. 셋째, 기본 개념과 역할 개념을 엄격하게 구분하여, 독서 시설, 전시 시설 등은 시설의 하위 개념이 아니라 역할 개념의 하위 개념으로 하여, 다중 계승을 하지 않도록 하였다. 넷째, 시설에 대한 온톨로지를 OWL DL로 구축하였다.

• 한국멀티미디어학회논문지
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• 제10권4호
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• pp.492-505
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• 2007

현재 국내의 시설물의 점검 및 관리 시스템은 대부분 수작업으로 이루어진다. 이런 수동적인 관리에서는 데이터베이스로의 입력이 필요하여 인력이 낭비되고 시설물의 변화에 실시간으로 대응하지 못함으로서 여러 사고를 초래하기도 한다. 하지만 사람이 일일이 체크하는 수동적인 시설물 관리에서는 이런 문제점을 완벽히 해결할 수 없다. 이 문제점들을 해결하기 위해서는 다음과 같은 조건을 필요로 한다. 첫째, 자동화된 시스템을 바탕으로 변화된 정보를 실시간으로 인식할 수 있어야 한다. 둘째, 데이터를 정확히 기록하여 점검시간의 조작 등이 발생하지 않아야 한다. 셋째, 관리자를 통한 관리가 용이하도록 이동성이 보장되어야 한다. 본 논문에서는 이러한 문제점들을 해결하기 위하여 이동성을 지니면서 여러 시설물에 관한 관리 및 점검을 편리하게 할 수 있는 이동형 RFID 시설물 관리 시스템을 설계 및 구현하였다. 이 시스템을 사용하게 되면 기존의 시스템에 비해 점검 작업의 정확성 향상과 시간을 단축시킬 수 있으며, 고장 빈도를 줄여 비용을 절감할 수 있음을 확인하였다.

• 한국방사선학회논문지
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• 제2권3호
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• pp.27-31
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• 2008

고에너지 X-ray를 사용하는 방사선 이용 시설에서는 고에너지 광자에 의한 광중성자 등의 발생에 대한 방사선방호 조치가 방사선 안전의 관점에서 매우 중요한 이슈 중의 하나이다. 이러한 광중성자들은 시설 외부로 누설될 경우 skyshine effect에 의해 작업종사자 및 일반 대중에게 예기기 않은 방사선 피폭을 야기할 수 있다. 이 논문에서는 9MeV X-ray를 이용한 화물검색시설을 대상으로 몬테카를로법을 이용하여 광중성자 생성량을 계산하고 이를 통해 시설 외부에서의 중성자 skyshine 방사선량률을 평가하였다.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 춘계학술대회논문집
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• pp.448-451
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• 2008

KARI is developing a satellite launch vehicle that is called KSLV(Korea Space Launch Vehicle)-I. During the flight, launch vehicles are exposed to aerodynamic heating conditions while flying at high Mach numbers in the atmosphere. KARI constructed Aerodynamic Thermal Simulation Facility to simulate aerodynamic heating on the ground. ATSF is a facility that can simulate given temperature profile using about 4,000 halogen heaters on fairing model. Aerodynamic heating profile is got from result of thermal analysis using MINIVER, Thermal Desktop, and SINDA/FLUINT. Aerodynamic heating test of fairing of KSLV-I was done using engineering model of payload fairing and Aerodynamic Thermal Simulation Facility. It was found that thermal analytic results show good agreement with aerodynamic heating test results within 6$^{\circ}$C at fairing inner surface. Also it was confirmed that maximum temperature of fairing nose-cone inner surface during flight is lower than allowable temperature limit.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 춘계학술발표대회
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• pp.547-550
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• 2011

The purpose of this paper is to verify and validate the maintenance tasks of the construction of a nuclear facility using a digital mock-up and simulation technology instead of a physical mock-up. Prior to the construction of a nuclear facility, a remote simulator that provides the opportunity to produce a complete digital mock-up of the PRIDE (Pyroprocess Integrated Inactive DEmonstration Facility) region and its remote handling equipment, including operations and maintenance procedures has been developed. In this paper, the system architecture and graphic user interface of a remote simulator that coincides with the extraordinary nature of a nuclear fuel cycle facility is introduced. In order to analyze the remote accessibility of a remote manipulator, virtual prototyping that was performed it by using haptic device of external input devices under a 3D full-scale digital mock-up is explained.