• 한국음향학회지
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• 제12권3호
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• pp.43-48
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• 1993

This study was carried out to verificate the possibility of using the laboratory setting psycho-acoustic experiment compared with the field and to delineate the appropriate indices in evaluating the Noisiness of road traffic noise by means of psycho-acoustic method. Reviewing the typical patterns of traffic noises depending upon the shapes ad conditions of the road, the road traffic noises in several representative points in the major residential areas in Kwangju city were recorded and reproduced with the noise levels modified in various steps. With these 20 sound sources, psycho-acoustic experiments in the laboratory were performed on 11 volunteer subjects. And then, psycho-acoustic experiments in the real field were performed on 10 volunteer subjects to compare the results of the laboratory experiment, the results are summerized as follows : 1. The psycho-acoustic experiments in the laboratory elicited the data well matching with those obtained in the field, resulting in even higher corelation levels. This indicates that the field assessement of responses to the noise can be replaced by the evaluatioin in the laboratory settings which render many variables easily controlled and that the responses of the residents to the noise can be easily predicted in the laboratory by applying this method. 2. Also among the complex indices, such as Noise Pollution Level or Annoyance Index high correlations were detected. On the other hand, low corelations were noted among Traffic Noise Index. 3. Highly significant correlations were found among the direct indices such as Leq, L\sub 10\, On the other hand, low correlations were detected among L\sub 50\.

• 한국농촌간호학회지
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• 제8권1호
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• pp.33-41
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• 2013

Purpose: The study was done to explore relationships between residential areas and smoking rates and to identify related factors contributing to smoking in Korea adolescents. Methods: An analysis was done of smoking rates and socioeconomic position indicators by city size based on a 2012 cross-sectional nationwide online survey conducted with 74,186 Korean middle and high school students aged 12-18 years old. Data were analyzed using x2-test and multiple logistic regression with the SPSS/WIN18.0 program. Results: Analyses revealed that rural boys were more likely to be current smokers compared to metropolitan boys (odds ratio 1.18, 95%-confidence interval 1.01; 1.38) but residential areas and smoking rates among girls were not related. After adjusting for covariates, results showed that city size, Family affluence score, economic status, parents' education level, living with parents, school type, and school achievement were related to increased an proportion of adolescents who smoked. Conclusion: In conclusion, rural living is a determinant of smoking among boys. Tobacco control programs should recognize differences in living conditions between rural and urban areas.

• 한국주거학회논문집
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• 제15권5호
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• pp.1-11
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• 2004

This study has been performed to review pre-school children's needs for privacy within normal residential space. In this study, there were three circumstances in which children need to stay alone without being interrupted by their parents; First, they strongly want to be stay quiet until relieving their anger or fear, shortly after disciplined and impugned by their parents. Second, infant children need to obtain their own territory in order to demonstrate ownership and dignity in their sley space. Third, there are also special circumstances of privacy needs among families with intrusive parents such as alcoholics and heavy smokers, or for the children of disability. In Korea, it is presumed that more than 60 percent the pre-school children aging three to six are in deficit of privacy for relieving their emotional disturbance, but no research has been documented for the case of disabled or interrupted children. Therefore in this study, it was primarily proposed that empirical studies need to be peformed among Korean preschoolers, in order to evaluate privacy needs in the perspectives of ordinary family lives, individual household behaviors, and special conditions of disability or offensive family members.

• 한국수소및신에너지학회논문집
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• 제19권4호
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• pp.313-321
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• 2008

Dynamics of the proton exchange membrane fuel cell is specially important when the system is frequently working on transient conditions. Even though the dynamics of proton exchange membrane fuel cell for residential power generation is less critical than that of PEMFC for transportation application, the system dynamics of PEMFC for RPG can be very important for daily start-up and stop. In particular, thermal management of the PEMFC for RPG is very important because the heat generation from electrochemical reaction is delivered to the home for hot water usages. Additionally, the thermal management is also very important for heat balance of the system and temperature control of the fuel cell. The objective of this study is to develop a dynamic system model for the study of PEMFC performance over various BOP options. Basic simulation results will be presented.

• 한국농촌건축학회논문집
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• 제15권3호
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• pp.41-48
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• 2013

The study aims to figure out the problems of Daldongnae (hillside shantytown) in Jaman-dong, Jeonju, and to propose the countermeasures for village regeneration. Based on the survey of current conditions in the area and the case study of successful regeneration projects, this study suggests regenerating concepts for the community. The study on the current state analyzes that Jaman-dong is faced with the population decline, especially among the young, the lack of community facilities and infrastructure, and the unfavorable situation in the residential environment. The case study involves three successful Daldongnae regeneration projects: the culture-based regeneration of Cultural Village (in Gamcheon-dong, Busan), the regeneration focused on healthcare and education of Ibagugil (in Choryang-dong, Busan), and the community-led regeneration of Rainbow Village (in Dae-dong, Daejeon). The regenerating concepts for the community are as follows: utilizing the existing local community center as a gathering place for the residents, furnishing a cultural space for a growing number of visitors, adding new parking space, installing convenient facilities in order to provide better pedestrian environment for the disabled and elderly, improving street landscapes, and establishing citizen participation programs.

• 한국농촌건축학회논문집
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• 제19권4호
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• pp.33-40
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• 2017

Following the development of economy and progress of the society, the problem of aging population appears. In 1999, China had been classified as "aging society" and aging of population has become a serious social issue that affects the economic growth and social stability. And one of the crux issue is the dwelling of aged people. As a cosmopolitan city, Beijing keeps leading position on residential development. But facing grim problem of ageing population, and the problem of the elderly living has not been solved yet. At the beginning of 21 Century, the first aged community(Oriental Sun City) was built in Beijing, and attracted a large number of old people to move in. But there are many problems in the process of design and construction since there is not much correlative researches for planning and design of aged communities. With a view to aged communities in Beijing, this thesis intends to research on the planning and design of aged communities. This thesis will give reference to help the programming and design of aged communities.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 춘계학술발표대회 논문집
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• pp.88-92
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• 2005

The Ubiquitous life is not a life style that exists in a science fiction or in a far distance future anymore. The Combination of electronic and physical space, this new type of space was created by the ubiquitous network system, and this system will offer us new life style. Also the pattern of our living will be changed by the information that has obtained from this ubiquitous network system. By offering a new way of communication from the ubiquitous surrounding, our life style such as shopping, medical treatment, banking, and working conditions and a notion such as the preference in a job title would have shifted. This study have arrived at the development of the high technology, in other words Ubiquitous age , I have considered the notion of home-network that have observed by the preceding investigators as well as the theoretical consideration of residential space in ubiquitous surrounding. After I look into the usages and examples of residential space in ubiquitous surrounding of today's society, I hope that this would be helpful for the design that strives for the comfortable living in this ubiquitous age.

• KIEAE Journal
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• 제17권5호
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• pp.33-41
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• 2017

Purpose: Indoor air quality in residential buildings needs to be evaluated over the long term. In previous research, there has been an attempt to perform the health risk assessment of pollutants by using numerical models as a method of long-term evaluation. However, the numerical model of this precedent study has limitations that do not reflect the actual concentration distribution. Therefore, this study introduces the CRPS index, constructs a numerical model that can reflect the concentration distribution, and then presents a more accurate health risk assessment method using it. At this time, the pollutants are toluene, which is a typical material released from building materials. Method: CRPS index was applied to existing numerical model to reflect concentration distribution. This was used to calculate concentrations at adult breathing area and to use them for exposure assessment in a health risk assessment. After that, we entered adult data and conducted a health risk assessment of toluene. Results: The non-carcinogenic risk of toluene was calculated to be 0.0060. This is 5% smaller than the existing numerical model, meaning that it is more accurate to predict the pollutant risks. This value is also lower than the US EPA reference value of 1. Therefore, under the conditions of this study, long-term exposure of adults to toluene has no impact on health.

• KIEAE Journal
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• 제17권5호
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• pp.43-50
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• 2017

Purpose: Residential cooking(gas or electricity) emits many air pollutants. For Removal of these contaminants, range hood is play an important role in the cooking activities. However, deterioration about performance of range hood can be occur in used range hood which is not verified on performance by testing balancing and adjusting in apartment. So, purpose of this study is to improve the range hood against cooking-generated contaminations. Method: To improve hood, survey of range hood which mounted in apartment have to conduct at first. In this study, the survey was conducted for 3 steps. First, Visual inspection for conditions of range hood. Second, questionnaire of operating and maintenance method. Third, interview with user about need for improvement, complainant. Finally, we integrated the survey for range hood and introduced the probable cause of deterioration through this comprehensive survey. Result: Result of measurement for air volume for range hood, A measured air volume has reduced by 41.4, 38.0, 32.0% each step from rated air volume. There are lots of reasons of this phenomenon including to maintenance, air path of duct, lower-cost devices, exhaust ports. For solve this problem, guideline about operating hood, user in apartment will have to supply with maintenance information at first.

• 설비공학논문집
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• 제12권3호
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• pp.315-324
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• 2000

R-410A, R-407C, and four refrigerant mixtures composed of R-32, R-l34a, R-l43a, R-l52a, R-600(butane), and R-600a(isobutane) were tested in an attempt to replace R-22 used in most of the residential air conditioners. The performance evaluation was carried out in a psychrometric calorimeter test facility using a residential spilt type air conditioner under the KS rating conditions. Except for the lubricant and hand-operated expansion valve, the other parts of the air conditioner were the same with the commercial system. Performance characteristics were measured; COP, capacity, compressor power, and VCR. R-410A was shown to have 5.5% higher COP and 3.5% lower capacity than R-22. R-32/134a/600a (42.8/ 46.0/11.2 wt%) mixture have the best performance among the four refrigerant mixtures composed of hydrofluorocarbon and hydrocarbon. This inixture have 3.0% lower COP and 1.6% lower capacity than R-22.