• 보건의료산업학회지
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• 제7권1호
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• pp.145-153
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• 2013

The purpose of this study is to identify if dental patients discriminate between dental clinic and dental hospital and the related factors for choice of dental facilities. A self-administered questionnaire survey was conducted from March 21 to April 11, 2011. Among 430 dental patients who visited dental clinic or dental hospital twice or more in Daegu, 410 dental patients were included in analysis. A total of 73.6% of the dental clinic visitors recognized correctly that the visiting facility was dental clinic and 82.3% of dental hospital visitors did correctly. Therefore, it can be said that dental hospital visitors recognize better the type of dental care facilities they visit. When it comes to choosing the dental facility, there were not much differences between the clinic and hospital patients in this study. Human resources, facilities and equipment, service are factors for choosing dental clinic and dental hospital in order. However, modern dental facility and equipment were more important factor for patients to choose dental hospital than clinic. It will be necessary for dental clinic or dental hospital to develop its own specific service to fulfill dental patients' needs through further studies on factors for choosing dental facilities.

• 한국산업융합학회 논문집
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• 제25권5호
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• pp.843-851
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• 2022

This paper was conducted to study the conditions for the manufacture and operation of artificial snow removal and ice-making test facilities so that the test equipment can be tested in a low-temperature environment using the polar environment performance test facility. The polar environment performance test Facility is designed to artificially simulate extreme environments up to -65 ℃, and is a mid-to-large low-temperature environment test facility that can perform performance tests on offshore plant equipment, ships, leisure, and offshore structures. To verify the safety of deck work of ships operating in polar environments, artificial snow removal and artificial ice making devices were manufactured, and we conducted research on various operating environments using these facilities. For the efficient operation of artificial snow and ice making facilities, it is important to continuously supply dry air, and it has been found that installing an additional heater at the tip of the nozzle is effective in preventing freezing.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2005년도 춘계학술대회논문집
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• pp.167-169
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• 2005

생활체육(life-time sports)은 태어나서 죽을 때까지 평생에 걸친 체육 스포츠 활동을 일상생활 내용으로 하는 것이다. 생활체육의 주목적은 신체활동의 부족, 자기표현의 기회상실, 인간관계 등과 관련하여 신체활동을 통해 체력을 단련하고 생황에 활력을 가져 보다 밝고 풍요한 생활을 영위하는 데 있으며 국내 생활수준의 향상에 힘입어 향후 생활체육시설은 급증 할 것으로 예측된다. 이러한 이유로 본 논문에서는 생활체육시설이 주로 옥외에 설치되어 있어 야간에 시설을 이용 할 경우 필수적 시설인 조명설비에 대한 실제 설계의 예(춘천 공지천 공원)를 들고 이를 통하여 타 지역의 생활체육시설의 조명계획과 설계에 도움이 되도록 제시하였다.

• Spatial Information Research
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• 제17권1호
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• pp.103-115
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• 2009

최근 경제발전과 아울러 점차 확충되어가는 우리나라의 주요항만과 연안해역의 개발로 해저시설물이 점차 증가 되어가고 있다. 그러나 현재까지 실시한 측량자료와 해도를 비교 검토해보면, 상당한 차이가 발생하고 있으며, 이는 해난사고의 주요한 원인이 되고 있다. 따라서 본 연구에서는 5개 지역에 대하여 최신의 조사장비(MBES, SSS, SBP)를 이용한 해저시설물 조사수행 및 정확도 분석을 수행하였으며, 이를 바탕으로 해저시설물의 조사방법 및 정확도의 개선방안과 해양조사를 위한 정책적 고려사항을 분석하였다. 연구를 수행한 결과 인천항 작도부근에서 해저배관의 형태 및 천소수심, 목포항부근에서 침선, 평택항 부근에서 해저배관 및 천소수심, 장직로 부근에서 인공어초 및 천소수심, 제주 남부해역에서 해저분화구에 대한 보다 정확한 측량 값을 얻을 수 있었으며, 각종 해저시설물 및 장애물들을 기존 측량성과 보다 더욱더 정확하게 파악할 수 있었다. 또한 해저시설물에 대한 정보인프라 구축 방안 및 연계를 위한 방법론을 제시할 수 있었으며, 국내 사용가능 장비의 규격과 조사방법 및 절차에 대한 실험적 기준을 정립하고, 해저시설물 측량과 조사를 위한 정확도 판단 기준을 제시할 수 있었다.

• 한국인터넷방송통신학회논문지
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• 제20권2호
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• pp.261-269
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• 2020

본 논문은 스마트 팩토리의 효율적인 오류 탐지를 위한 설비 시뮬레이션 시스템을 소개한다. 공장 설비들의 관계를 분석하여 설비오류 탐지시 오류를 자율적으로 추론하고 해결할 수 있는 설비 시뮬레이션 시스템은 높은 생산성을 가진 스마트 팩토리를 구성하는 데 중요한 기술 중 하나이다. 이러한 자율 제어 시스템 구현을 위해서는 공장 설비의 데이터를 통해 설비의 상태를 파악하고 설비 간 관계를 분석할 수 있어야 한다. 따라서 본 논문은 정의된 설비 상태를 이용하여 공정 시나리오를 기반으로 오류 발생시 공정 오류의 원인이 되는 설비를 쉽게 탐지할 수 있는 프로그램을 설계하고 개발한다. 시뮬레이션을 통해 공정 Map과 설비 상태 기반의 오류 추론 과정이 일반적인 오류 추론 과정보다 효율적임을 보였다. 본 시뮬레이션 프로그램을 통해 설비 오류 발생에 따른 추론 및 해결 과정을 직관적으로 볼 수 있도록 한다.

• 한국산업보건학회지
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• 제26권2호
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• pp.188-197
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• 2016

Objectives: The purpose of this study was to evaluate the ozone exposure levels and the variations in ozone concentration in a semiconductor fabrication facility and office in relation to the ozone concentration in the outdoor air. Methods: This study was performed in an office, semiconductor fabrication facility(such as etching, diffusion, diffusion plenum), and outdoors from June to August, 2015. Measurements were taken six times at the same places using an active sampler(pumped) and real-time equipment. Ozone monitoring by the active sampler method and analysis were carried out by OSHA Method ID-214. Real-time measurement was carried out by ozone measuring equipment using a non-dispersive ultraviolet absorption method. Results: Ozone concentrations in the semiconductor fabrication facility and office were 0.7~7.1 ppb in area samples and 0.72~4.07 ppb in real-time measurement, which were 0.88~8.88% of the occupational exposure limit. The concentration of ozone generated by a laser printer in the office was less than 2 ppb. There was not a significant difference between ozone concentrations before and after using the laser printer. The indoor/outdoor concentration ratio(I/O ratio) in the semiconductor fabrication facility and office was 0.05 and 0.06, respectively. Conclusions: All the samples contained ozone levels lower than the occupational exposure limit and it was confirmed that the concentration of outdoor ozone had no significant effect on indoor ozone concentration.

• 한국조명전기설비학회지:조명전기설비
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• 제6권6호
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• pp.42-48
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• 1992

This paper shows a reasonable design standard of substation facility density and demand factor in office buildings, that was made by the systematic and statistical way considering actual conditions, such as investigated electric equipment capacity, electric power consumption, etc for 121 buildings. The saving of electric equipment investment, the decrease of power loss, the improvement of facilities utilization and the decrease of electric power rates an be contributed by the application of the design standard must be applied by the revision of current regulations and laws.

• 한국멀티미디어학회논문지
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• 제23권5호
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• pp.673-682
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• 2020

Buildings are becoming more and more high-rise and large-scale in recent years, so in the event of a disaster such as a fire, enormous human and economic damage is expected. Therefore, management, security, and fire control are essential for large buildings in the city. Because these large buildings are very complex outside and inside, they need a three-dimensional control based on 3D modeling rather than a simple flat-oriented control. To do this, this paper designed and implemented a building control system based on 3D modeling. Specifically, we designed a 3D building / facility editing module for 3D modeling of buildings, a 3D based control module for building control, and a linkage module that connects information such as firefighting equipment, electrical equipment and IoT equipment. Based on this design, a building control system based on 3D modeling was implemented.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
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• pp.240-242
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• 2005

It is well known that the PD (Partial Discharge) signals are generated if insulators have some defects such as voids in electrical facility and various PD detection methods are developed for preventing electrical troubles. So, an interest for the PD signals is higher and higher according to the high concern for the defects detection method of the aging electrical facility. When the equipment to detect PD signals installed at site and it works, a lot of noises flow in the equipment from surrounding situation and it will be mixed with original PD waveform. So we can not get the desired PD waveform. Therefore, there are many trial to reject or suppress the noise from the PD signals from long times ago. The greater of them used the hardware such as bridge circuits and frequency filters to suppress the noise. This paper proposed a novel noise rejection method in acquired data from PD detection equipment. The noise has the irregular phase and higher signal level than real PD, and noise decision is performed after inspection of pulse distribution in ${\Phi}$-q-n graph of acquired data from PD detection equipments. By experimental results on high voltage electric equipments, it is shown that proposed method has good performance. It is expected that this noise rejection technology is useful in numeric calculation and trend management of PD level.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.438-446
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• 2003

This paper presents the development of the remotely operated decontamination systems for use in a highly radioactive zone of the DUPIC Fuel Development facility of the Irradiated Material Examination Facility at the Korea Atomic Energy Research Institute. The remotely operated decontamination systems were designed to completely eliminate human interaction with hazardous radioactive contaminants. These decontamination systems are mainly classified into three systems depending on the task environment - a fabrication equipment decontamination system, a hot-cell floor decontamination system, and an isolation room floor decontamination system. A decontamination system for contaminated fabrication equipment utilizes dry ice pellet blasting method to decontaminate contaminated surface of the equipment. The decontamination systems for the hot-cell floor and isolation room floor employ a vacuum cleaning method to decontaminate the contaminated floor and collect loose dry spent nuclear fuel debris and other radioactive waste placed on the floor. The human operator from the out-of-cell performs a series of decontamination tasks remotely by manipulating decontamination systems located in-cell via a handcontroller with the aid of vision feedback information. The environmental, functional and mechanical design considerations, control system and capabilities of the remotely operated decontamination systems at a high radioactive environment are also described.