• 제목/요약/키워드: Facility-specific Characteristics

검색결과 117건 처리시간 0.024초

소규모 노후 건축물 안전관리 및 취약성 요소 정량화 기본연구 (A Basic Study on the Safety Management and Quantification of Vulnerability Factors in Small-size Old Buildings )

  • 고월산;오규호;안성진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 가을학술발표대회논문집
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    • pp.249-250
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    • 2023
  • The vulnerability factor analysis and risk quantification model for aging buildings presented in this study can be utilized by governmental agencies such as the Facility Safety Foundation, the Ministry of Land, Infrastructure and Transport, and various local governments. Policymakers can use this to supplement inadequacies in existing checklists, and it is expected that they can proactively prevent risks by evaluating dangers based on specific aging characteristics of buildings.

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건물 외벽 패널용 경량기포콘크리트(AAC)의 CaO/$SiO_2$ 혼합비에 따른 강도 특성 평가 (Strength Characteristics according to the mixed CaO/$SiO_2$ Ratio to Autoclaved Aerated Concrete(AAC) used on the Exterior Panel in Buildings)

  • 김영호
    • 한국디지털건축인테리어학회논문집
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    • 제11권3호
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    • pp.35-42
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    • 2011
  • The exterior system of buildings, which is the typical curtain wall, has been made with glass and metal. Theses materials, however, have weaknesses such as inadequate insulating quality, short durability, combustibility and toxic substance. On the other hand, Autoclaved Aerated Concrete(AAC) or Autoclaved Lightweight Concrete(ALC) possess the great energy efficiency and the superb insulating quality as substitute of existing exterior system materials. In this research, strength characteristics and bubble dispersion of hydrothermal synthesis process of AAC based on CaO/$SiO_2$(C/S) ratio are analyzed. C/S ratio is determinated and bubble distribution and compressive strength are studied through the test of varied water-to-solid mineral ratio(W/S). In hydrothermal synthesis program, final C/S ratio is determined as 0.7 consider of the manufacturing process and hydrothermal synthesis is done at $180^{\circ}C$ for 7 hours. The analysis shows slurry has about 2,300cP viscosity and 0.56 specific gravity therefore it is expected AAC has the appropriate facility in the manufacturing process and Hydrates of AAC's Expansion.

APR 1400급 원자로냉각재펌프의 회전체 진동평가에 관한 고찰 (Introduction of Vibration Evaluation for APR 1400 Reactor Coolant Pump Shaft)

  • 김익중;임도현;김민철;방상윤
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2014년도 추계학술대회 논문집
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    • pp.110-115
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    • 2014
  • The nuclear power plant was launched by Kori unit 1 in 1978 years. Currently, 23 nuclear power plants have been operating in Korea since 1978 years. The localization was completed for most of the reactor facility from Hanbit(Youngkwang) unit 3&4. However, RCP(Reactor Coolant Pump) and MMIS(Man Machine Interface System) is an important technology that has been excluded from the scope of the technical transfer has been dependent on a specific overseas vendor. Recent success in RCP development through co-operation with government and industries. Developed RCP will be applied to Shin-Hanul unit 1&2 nuclear power plants. The RCP operates in high speed and high pressure condition and only rotating component in the NSSS(Nuclear Steam Supply System). Therefore, the problem of vibration has arisen caused by the hydraulic forces of the working fluid. These forces can influence on the stability characteristics for entire RCS(Reactor Coolant System) loop, and can act as significant destabilizing forces. In this study, vibration evaluation of the pump shaft of development RCP estimated under normal operation and over speed conditions. In order to predict the vibration characteristics and dynamic behavior, modal analysis, critical speed analysis and unbalance response spectrum analysis were performed.

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지능형 도시 관리를 위한 지상시설물 분류 및 분석 연구 (A Study of the Classification and Analysis of On-Ground Facilities for Intelligent Urban Management)

  • 남상관;최현상;오윤석;류승기
    • 대한공간정보학회지
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    • 제16권2호
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    • pp.23-29
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    • 2008
  • 본 연구에서는 도시 지상시설물을 보다 지능적이고 능동적으로 관리하기 위해 첨단 유비쿼터스 센서네트워크 기술을 도입함에 있어 가장 기본이 되는 체계적 시설물 분류와 이에 대한 분석을 다루고 있다. 그동안의 u-City 및 시설물 지능화 관련 선행연구를 통해 유비쿼터스 센서네트워크 기술 도입에 대한 필요성과 일부 응용사례 등이 발표된 바 있으나, 체계적인 시설 분류나 특성별 센서 도입 방안에 관한 연구는 미진한 실정이다. 이에 본 연구를 통해 기존 도시에서 관리하고 있는 지상 시설물들의 주요 관리특성을 도출하고, 이를 체계적으로 분류 및 분석함으로써 시설물관리 및 유비쿼터스 센서네트워크의 융합에 기여하고자 한다.

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반도체 제조 설비용 전해 연마된 STS316L 용접강관의 표면 성질 - 전해 조건과 표면 성상의 관계를 중심으로 - (Surface Properties of Electrolytic-Polished 316L Stainless Steel Welding Tube for Semi-Conductor Fab. - As the Relation of Electrolysis Conditions with Surface Characteristics -)

  • 김기호;조보연
    • 한국표면공학회지
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    • 제41권1호
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    • pp.38-42
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    • 2008
  • 316L stainless steel welding tube was electrolytically polished and the inner surface characteristics of the tube were tested. Electro-polishing variables such as current, voltage, concentration of electrolyte and electropolishing time were changed to seek for optimum condition. These makes a optimum conditions for the electro-polishing as 4000 A, 9 V, 1.7 specific gravity of electrolyte, and 30 minute of electro-polishing time. It makes the surface roughness as Ra < $0.25{\mu}m$. XPS test resulted as the ratio of CrO/FeO equals or more to 3/1. AES test resulted as the thickness of CrO film of $38{\AA}$. DTA test resulted as the tube did not react with $N_2,\;H_2\;and\;O_2$ gas below 1073K. As summarize above results, the electro- polished 316L stainless steel welding tube satisfied the conditions to apply as a pipeline for semi- conductor production facility and clean room.

냉각 방법에 따른 모의 방사성폐기물 유리고화체의 특성평가 (Evaluation of Characteristics of Simulated Radioactive Vitrified Form Using Cooling Methods)

  • 이강택;이규호;윤덕기;류봉기;김천우;박종길;황태원
    • 한국세라믹학회지
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    • 제43권12호
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    • pp.865-871
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    • 2006
  • In order to examine and compare the characteristics of two vitrified forms (AG8W1 and DG2) simulated for the operation of a commercial vitrification facility being constructed in Ulchin nuclear power plant, the vitrified forms were cooled by the natural cooling and annealing methods respectively. And the Product Consistency Test (PCT), compressive strength, thermal conductivity, specific heat, phase stability, softening point and Coefficient of Thermal Expansion (CTE) of the vitrified farms were experimented. Consequently, it was shown that there were no significant differences on the physiochemical properties of the vitrified forms performed the natural cooling and annealing.

여성회관에 나타난 커뮤니티 공간의 특성에 관한 연구 - 서울, 경기지역을 중심으로 - (A Study on a Characteristic of Community Space in Women's Hall - Focused on Seoul, Gyeonggi Area -)

  • 백경화;김진우
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2007년도 추계학술발표대회 논문집
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    • pp.122-127
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    • 2007
  • Women's Hall is a local facility that supports women's activities in the community and has the purpose in establishing self-support for low-income women and women's participation in society. Its functions are largely separated into social welfare, education, culture, and community services. The purpose of this study is to highlight and discuss the characteristics of space for community functions among other functions of Women's Hall. It has investigated and analyzed ten cases in total of all the women's halls that have opened since 1995. The examples selected for study have been analyzed in terms of the functions of each community space, layout of the rooms, finishing materials, and colors. The result of the study indicates that social demand for women's halls is changing. However, the characteristics of the space or the environment are incapable of accommodating the change. In order for the women's halls that will open in the future to perform acceptable community functions, they need to determine the degree of satisfaction and preference of the users and come up with a specific proposal for improvement.

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충남 덕산도립공원 탐방객 만족도와 재방문 의사 (Visitors' Satisfaction level and Intention to Revisit for Chungcheongnam-do Deoksan Provincial Park)

  • 이샘;백동열;구본학
    • 한국환경복원기술학회지
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    • 제26권1호
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    • pp.35-46
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    • 2023
  • The purpose of this research is to provide characteristics and satisfaction of visitors for Deoksan Provincial Park in Chungcheongnam-do. This study conducted face-to-face interview during Oct. to Nov. in 2022. Total sample size of this study was 521. This study used to implement frequency analysis, cross analysis and logit analysis via SPSS 21.0 version. The results showed most of visitors were one day visitors and visited with family and relatives. Many visitors visited the Deoksan Provincial Park to climb the mountain and relaxing/healing with the nature. The satisfaction level of factors such as nature, facility, access to information of the park was high with about more than 4-point on Likert scale. This study would be useful to develop site-specific policies to the management of provincial parks as this study identified the characteristics and satisfaction level of the visitors.

The Balance Between Safety and Productivity and its Relationship with Human Factors and Safety Awareness and Communication in Aircraft Manufacturing

  • Karanikas, Nektarios;Melis, Damien Jose;Kourousis, Kyriakos I.
    • Safety and Health at Work
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    • 제9권3호
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    • pp.257-264
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    • 2018
  • Background: This paper presents the findings of a pilot research survey which assessed the degree of balance between safety and productivity, and its relationship with awareness and communication of human factors and safety rules in the aircraft manufacturing environment. Methods: The study was carried out at two Australian aircraft manufacturing facilities where a Likert-scale questionnaire was administered to a representative sample. The research instrument included topics relevant to the safety and human factors training provided to the target workforce. The answers were processed in overall, and against demographic characteristics of the sample population. Results: The workers were sufficiently aware of how human factors and safety rules influence their performance and acknowledged that supervisors had adequately communicated such topics. Safety and productivity seemed equally balanced across the sample. A preference for the former over the latter was associated with a higher awareness about human factors and safety rules, but not linked with safety communication. The size of the facility and the length and type of employment were occasionally correlated with responses to some communication and human factors topics and the equilibrium between productivity and safety. Conclusion: Although human factors training had been provided and sufficient bidirectional communication was present across the sample, it seems that quality and complexity factors might have influenced the effects of those safety related practices on the safety-productivity balance for specific parts of the population studied. Customization of safety training and communication to specific characteristics of employees may be necessary to achieve the desired outcomes.

공공임대주택의 유형별 주거환경 비교 분석: 최저주거기준 미달을 중심으로 (Comparison of Residential Environment by Public Rental Housing Type: Focusing on Failing to Meet the Minimum Housing Standard)

  • 이다은;오지영
    • 토지주택연구
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    • 제15권1호
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    • pp.23-38
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    • 2024
  • 본 연구는 유형별 공공임대주택의 주거환경을 최저주거기준과 세부 기준을 중심으로 ANOVA, 다항로지스틱모형을 활용하여 미시적으로 살펴보았다. 주요 실증분석의 결과는 다음과 같다. 첫 번째, 입주자뿐만 아니라 최저주거기준과 세부 기준은 공공임대주택 유형별로 특성의 차이를 확인할 수 있었다. 두 번째, 행복주택은 최저주거기준 미달비율과 설비기준을 제외한 나머지 세부 기준의 미달비율이 높아, 전반적인 주거환경이 가장 열악한 것으로 나타났다. 세 번째, 영구임대, 국민임대, 매입/전세임대 중 영구임대의 최저주거기준과 면적·방기준이 취약하였으며, 매입/전세임대는 구조·성능·환경기준의 미달비율이 높게 나타났다. 네 번째, 매입/전세임대가 다른 공공임대 유형보다 임대 불안감이 높았고, 특히 임대료상승과 보증금 미반환에 대한 불안이 높다는 것을 확인하였다. 이러한 결과를 바탕으로 공공임대주택 유형에 따른 맞춤형 지원을 통해 주거환경 개선을 위한 노력이 필요하다는 것을 확인하였다.