• 제목/요약/키워드: noise survey

검색결과 508건 처리시간 0.028초

축소모형 실험을 이용한 전기적 잡음에 관한연구 (The Study on an Electric Noise Effect using Physical Scale Modeling)

  • 윤점동;송영수;소경묵
    • 한국지구물리탐사학회:학술대회논문집
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    • 한국지구물리탐사학회 2007년도 공동학술대회 논문집
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    • pp.297-302
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    • 2007
  • Recently, electrical resistivity survey is used in the various fields and applied to urban area with many electrical noises. Therefor it's necessary to observe the electrical noise effect of the geological structure. The physical scale modeling was conducted for measuring the electric noise effect of the two geological models at various distances, depths and diameters of the electric noise objects. The results are as following. 1. When conductive noise object was vertical to the strike of geological structure and moved to the strike direction, the effect of conductive noise object at various separated distances to the measurement line was disappeared at a half distance measurement line length regardless of electrode arrays. 2. When conductive noise object was vertical to the strike of geological structure and moved to the strike direction, the effect of conductive noise object at various depths was disappeared at 4unit apart from the measurement line regardless of electrode arrays. 3. When conductive noise object was vertical to the strike of geological structure and moved to the strike direction, the effect of conductive noise object at various diameters was disappeared at 4unit apart from the measurement line regardless of electrode arrays.

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주거환경소음에 대한 주민 의식 변화 분석 (Variations of Subjective Response to Environmental Noise)

  • 송국곤;양빛나;박현구;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2011년도 춘계학술대회 논문집
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    • pp.181-186
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    • 2011
  • As the number of the apartments is increasing, many environmental problems are also occurred. There are lots of studies on that problems. Especially, a lot of studies about environmental noises are going along continuously. And they found out advanced results. In this study, we investigated the residents' subjective responses about environmental noises by survey, and verified the trend of the environmental noise conditions in apartment house. The results of this study will be useful to provide guideline to make policy of environmental noise and criteria.

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The Risk Rating System for Noise-induced Hearing Loss in Korean Manufacturing Sites Based on the 2009 Survey on Work Environments

  • Kim, Young-Sun;Cho, Youn-Ho;Kwon, Oh-Jun;Choi, Seong-Weon;Rhee, Kyung-Yong
    • Safety and Health at Work
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    • 제2권4호
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    • pp.336-347
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    • 2011
  • Objectives: In Korea, an average of 258 workers claim compensation for their noise-induced hearing loss (NIHL) on an annual basis. Indeed, hearing disorder ranks first in the number of diagnoses made by occupational medical check-ups. Against this backdrop, this study analyzed the impact of 19 types of noise-generating machines and equipment on the sound pressure levels in workplaces and NIHL occurrence based on a 2009 national survey on work environments. Methods: Through this analysis, a series of statistical models were built to determine posterior probabilities for each worksite with an aim to present risk ratings for noise levels at work. Results: It was found that air compressors and grinding machines came in first and second, respectively in the number of installed noise-generating machines and equipment. However, there was no direct relationship between workplace noise and NIHL among workers since noise-control equipment and protective gear had been in place. By building a logistic regression model and neural network, statistical models were set to identify the influence of the noise-generating machines and equipment on workplace noise levels and NIHL occurrence. Conclusion: This study offered NIHL prevention measures which are fit for the worksites in each risk grade.

한국전통정원의 소리환경에 대한 연구(1) - 전통별서정원 소쇄원을 중심으로 -

  • 신용규;남기봉;국찬동
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2004년도 춘계학술대회논문집
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    • pp.1022-1027
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    • 2004
  • Soswaewon is one of the most representative traditional garden in Korea which has the highest reach of soundscape with the sounds and landscape components. This study aims to find out and to introduce the characteristics of soundscape in Korean traditional garden and to establish the basic data of soundscape research. Literature survey, of ancient poetry, acoustical survey on the sound itself and questionnaire survey to the visitors were carried out to analyse the relationships between the images perceived by the visitors and the characteristics of soundscape components in Soswaewon.

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광주천변의 사운드스케이프 현황 (Soundscape for Gwang-Ju Riverside)

  • 송혁;박현구;송민정;이태강;김항
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2005년도 춘계학술대회논문집
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    • pp.603-606
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    • 2005
  • This study is to make good acoustic environment around Gwang-ju riverside and performed survey and measurement of soundscape. The survey was focused on the types of sound producing. The results of measurement and analysis are as follows: 1) The types of sound at reverside were twenty and the Leq(equivalent noise level) was ranging from 50 dB(A) to 76 dB(A). The dominant sound was road traffic noise. 2) In the upperstream and the downstream, the sound of wind, bird and water was observed. 3) In the inner city, the water sound was produced by the difference of the height of the weir to mask the road traffic noise.

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건설공사장 소음.진동 실태조사에 관한 연구 (Investigation Study on Noise and Vibration Condition in Construction Site)

  • 선효성;박영민;조윤희
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2008년도 춘계학술대회논문집
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    • pp.879-881
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    • 2008
  • The construction noise and vibration is a serious social problem in the downtown. This results in many expenses and delays of construction process because of the satisfactory settlement of popular complaints. In this study, we analyze the dispute mediation cases on the damages of construction noise and vibration and the noise and vibration condition in construction sites by using questionnaire surveys.

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