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공동주택 주방후드 소음저감을 위한 건축 설계 대안 평가
이남수(Lee, Nam-Su),송민정(Song, Min-Jeong),오양기(Oh, Yang-Ki) 한국건축친환경설비학회 2015 한국건축친환경설비학회 논문집 Vol.9 No.6
Due to the currently increased desire for improving the living environment of the residents in apartment buildings, some problems related to the noises from the indoor facilities & equipment have been raised and thus the requirements for improving the functions of such facilities & equipment and for reducing the noises from such ones are increasing. However, in case of the facilities & equipment, it is in the situation that such facilities & equipment are designed and established while the unique characteristics of the sound source and their effects on a unit house are not considered. Therefore, to predict the noisy situations in advance based on the noise characteristics of facilities & equipment and the types of rooms is a very important matter for reducing the noises from such facilities & equipment. In this study, the noise of the equipment, in order to understand the effect on the room, and using acoustic simulation. Flat-shaped, area, we tried to try to predict the noise reduction amount in the room due to the changes in the internal organs material. Kitchen hood noise through the field measurement of the apartment has to understand the impact on the living, We have applied the frequency another sound source characteristic value and terms and conditions to simulate. In kitchen hoods noise installed partition wall effects on the living room during the kitchen and living room, in the simulation after changing the sound absorbing material, to compare the results before and after change. We were compared with each other before and after partition-specific installation in the same plane. It was found that a considerable noise reduction effect from the plane after installing the partition wall.
이남수(Lee, Nam-Su),송민정(Song, Min-Jeong),강민우(Kang, Min-Woo),오양기(Oh, Yang-Ki) 한국건축친환경설비학회 2015 한국건축친환경설비학회 논문집 Vol.9 No.1
From the economic development in the 1970s, many of the population has been gathered in the urban areas which caused the massive supply of apartment houses. Facility noise is one of the major problems in living in those apartment houses, for their nature of shared walls and floors. In this study, complaints of residents in regard the facility noise were investigated Surveys on the types and the places of occurrence of the noise, impacts on the annoyance according to the time of day were performed. The degree of residents’ complaint and annoyance level may be mitigated with the result and analysis of this study.
이남수 ( Nam Su Lee ),박은영 ( Eun Young Park ) 한국수산경영학회 2010 수산경영론집 Vol.41 No.3
Abalone is a primary commodity that is almost traded as live fishes. So the application of ``addition`` is common in local transaction of abalone. Nevertheless, an excessive application of addition leads to some social problems. The abalone industry is one of the most rapidly growing industry in fisheries. This growth is caused by propagation of sea cage and mechanization of feeding. As a result, the abalone distributers are increased. However, the distributers have great bargaining power, so they sometimes claim excessive addition rates to aquacultural abalone producers. Difference in fitted level of the addition rates between distributers and producers cause some problems as an aversion to shipping of abalone. Also, the words about addition have not clear definition yet. So many related terminologies, for example, addition, deviation, and loss, those have different meaning are in used. And unfortunately many industry insiders use the words, ``addition``, mixed with other related terminologies on transaction. The main objective of this study is to clearly define addition`s meaning on the abalone transaction and to analyze the correlations between the addition and the abalone prices, outputs, and exports. Analysis results show addition negatively affects abalone prices and outputs. Furthermore, addition contributes to abalone exports negatively contrary to expectation. Such results can provide information that ``stabilization of supply and price of abalone`` is realistically better method than ``increasing of additional rates`` to expand abalone exports. Negative correlations between variables tell that a dictionary definition of addition, a free as seller`s benevolence, is divorced from reality of abalone industry. Therefore "Loss", that means preservation in unintentional loss of abalone objects, is more suitable than "Addition" on abalone transaction.