• Proceedings of the ESK Conference
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• 1997.10a
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• pp.179-185
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• 1997

작업장 뿐만 아니라 일상생활에서도 결코 무시될 수 없는 것이 레져활동으로 인한 소음이다. 최근 급격히 늘어가는 개인 휴대용 카세트(Personal Cassette Players: PCP)사용은 심각한 소음성난청 발생이 우려된다. 본 연구는 PCP사용에 관련된 여러 인자들이 청력손실과 어떻게 얼마나 관련이 있는가를 파악 하고 PCP를 일정시간 사용했을 때 오는 청력 손실을 정량적으로 파악, 분석하는데 근본 목적을 둔다. 정상 청력을 가진 피실험자 18명의 대학생들을 대상으로 정상 청취조건 그리고 배경소음(지하철)에 노출 중과 후의 사용환경과 소음원으로 Hard Music, Soft Music 및 Language/News를 고려하여 평균소음도와 최고 소음도를 측정하였다. 또한 현실적 상황을 고려한 2시간 정도의 PCP의 청취 전과 후의 청력변화를 측정하였다. 통계 분석 결과, 사용환경과 소음원에 대해 휴대용 카세트 청취 소음수준이 유의한 차이가 있었으며, 특히 Hard Music 청취시에는 95dB, 그리고 지하철 소음하에서는 92dB의 높은 (위험한) 청취수 준을 보였다. 최고소음수준의 경우 NIOSH기준을 초과하는 117dB 정도의 매우 위험한 수준까지 나타났다. 또한 2 시간 정도의 PCP소음에 노출 전 후의 청력손실이 주파수 대역에 걸쳐 유의하게 나타났으며, 특히, 가장 민감한 주파수 대역인 4000Hz에서 최고 7dB 정도의 청력 손실이 발생하였다. 본 연구 결과에 따라, PCP사용에 대한 청력보호대책안을 제시하고자 한다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.187-187
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• 2004

진공청소기는 가전 제품 중에서 인간의 일상생활에서 꼭 필요한 가전제품의 하나이다. 그러나, 성능 향상을 위한 과도한 회전 속도 때문에 큰 소음을 유발하며 그로 인해서 사용자에게 소음으로 인한 스트레스나 피로누적 등의 큰 불편을 초래하고 있다. 이것은 진공청소기내에 있는 팬 모터가 30000∼35000 rpm으로 고속회전을 통해서 측에 연결되어 있는 임펠러를 회전시켜 공기를 흡입, 배출시키는 일련의 작동을 하면서 여러 가지 진동 및 유체소음을 일으키기 때문이다. 이러한 진공청소기용 팬모터의 소음 저감 연구는 국내외 관련회사 및 연구소에서 활발히 진행되고 있다.(중략)

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.11b
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• pp.699-702
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• 2001

본 연구에서는 생활공간에서의 음 환경이 인체에 미치는 영향을 조사하기 위하여 긍정감성 유발 음환경으로서 시냇물 흐르는 소리를 배경으로한 명상음악을 제시하고 부정감성을 유발하는 음환경으로서 '헬리콥터소음'과 '마루삐그덕 소음'을 제시하여 자율신경계 생리반응으로서 심전도의 HRV를 분석하였다. HRV는 AR(autoregressive) 모델로 구하였으며 Power spectrum을 LF(0.01 - 0.08 Hz), MF(0.08 - 0.15 Hz), HF(0.15 - 0.5 Hz) 영역으로 나누어 LF. MF. HF 영역의 Power 및 LF/HF와 MF/(LF+HF) Power Ratio를 분석하였다.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.17 no.3 s.120
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• pp.207-212
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• 2007

Community noise has been great concerned in public. The traffic noise in seoul, especially has been growing awareness for the quiet living environment. In this paper, the effect on the noise barrier in order to reduce highway noise near on the street has been examined. First barriers have been evaluated at 5 locations in the city. The evaluation is performed before and after construction, with the reference point which does not affected on road traffic volume. Then, noise reducers mounted on the harriers also have been examined. the result shows that it reduces noise level by $3{\sim}3.5dB(A)$ with a standard deviation of 2.8 dB(A).

• Journal of Sasang Constitutional Medicine
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• v.11 no.1
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• pp.185-199
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• 1999

Purpose Obesity goes on increasing rapidly because of the change of dietary life, various stresses and convenience of life, that cause heart disease, diabetes mellitus, hypertension, fatty liver, arteriosclerosis these days. As obesity is disease, I think there will be constitution to easily become obese, so I began to study this. Methods (1) Subjects The subjects of this study were 101 female patients visited Nara oriental medical hospital during 2months from April 1 to May 30 in 1999. (2) I determined finally classification of sasang constitution according to diagnosis and questions made in Nara oriental medical hospital. Results (1) 81.2% of obese patients are Taeumin, 15.8% of those are Soeumin, 3% of those are Soyangin. (2) Soeumin has significant difference that it takes over 30 minutes to have a meal. (3) Significant difference is that Soeumin goes to bed earlier in the evening than Taeumin and Soyangin. (4) From obesity of whole body point of view, Taeumin has more significant and from obesity of abdomen and leg point of view, Soeumin has more significant difference.

• 월간산업보건
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• s.262
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• pp.15-25
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• 2010

• KOREAN POULTRY JOURNAL
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• v.48 no.2
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• pp.206-208
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• 2016

• Journal of Digital Convergence
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• v.15 no.1
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• pp.603-610
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• 2017

The purpose of this study aimed to analyze the difference of the Sasang constitution type in the relationship between university life stress and mental stress. The data were collected by a self-reported questionnaire from 389 university students and 389 students were classified by QSCC II.(136 So-Eum, 139 So-Yang, 114 Tae-Eum). Multi-group analysis was performed to analyze the differences in the effects of university life stress on mental health according to the type of sasang constitution. Multi-group analysis was performed to analyze the differences in the effects of university life stress on mental health according to the type of sasang constitution. According to multi-group analysis, there were statistically significant differences in the effects of university life stress on mental health across So-Eum-So-Yang, Tae-Eum-So-Yang. Based on these results, a differentiated intervention plan suitable for sasang constitution was proposed.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.2
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• pp.345-353
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• 2013

This study was conducted to clarify the effect of sleeping disorder on the life stress of the university student on the side of cooking for himself, housing noise, dissatisfaction in school life, ill health, problem in future and a sense of values. A self-boarding student apart from a family (p<.042) had a higher sleeping stress. Noise of housing environment (p<.002), life dissatisfaction in university (p<.007), ill health (p<.010), life stress (p<.004) led to a more sleeping stress. Both gloomy prospects (p<.002) and a sense of values (p<.001) disturbed a university man's sleep. Cooking food for oneself, housing noise, displeasure in university life, ill health, gloomy prospects and a sense of values gave risen to the university student's sleeping disorder.

• The Journal of the Acoustical Society of Korea
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• v.15 no.4
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• pp.12-17
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• 1996

With the increase in discomfort of living by serious traffic noise pollution, the desire of relieving from discomfort is boosted up more than ever. For this reason, the researches on environmental impact assessmient and noise pollution control are highly required. This research was aimed to analyze the physical characteristics of noise caused by high-speed train in foreign countries by literature survey and field data. And with the attained results, the exterior noise level around Chon-An station, the first station planned for the high-speed train in this country, was estimated. The results of this study might be used as a tool for predicting the unavoidable noise, lessening the noise impact caused by the high-speed train, and preparing the noise prevention measures for the interior space and the exterior around stations.