• 한국입자에어로졸학회지
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• 제4권2호
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• pp.69-75
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• 2008

Nanosize ZnO particles were prepared by oxidation of zinc vapor and the particle growth was modeled by a coagulation model by assuming that the characteristic time for reaction was much shorter than coagulation time and residence time (${\tau}_{reaction}{\ll}{\tau}_{coagulation}{\ll}{\tau}_{residence}$). Experimental measurement of zinc oxide particles diameter was consistent with the predicted result from the coagulation model. For practical purpose of predicting zinc oxide size in areosol reactor, the constant kernel solution is concluded to be sufficient, Uniqueness of nano-scale property of zinc oxide was confirmed by the higher photocatalytic activity of zinc oxide than nanosize titania particles.

• 한국농촌건축학회논문집
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• 제9권3호
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• pp.33-45
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• 2007

Recently, large scale disasters have been occurred in rural areas. Most people suffering from the disaster live in the temporary containers. These could not provide the fundamental occupancy performances such as thermal insulation, ventilation and heating system. It is very important to rebuild the residence for sufferers quickly and safely. Because modular building system has some advantages such as short construction time, mobility, light-weight structure, modularity, flexibility and economical efficiency, it is expected that it could be easily applied to the disaster restoration. So, this research aims at developing the design model of modular building system for disaster restorations in fishing and agrarian villages. For this purpose, current counterplan for restoration was firstly investigated. Also the basic guideline was established through the investigation of current status of residence in fishing and agrarian villages. Finally, 2 types of design model such as single story residence and temporary accommodation facility were proposed. We could see that we could make the flexible building plan when applying the modular building system to the temporary housing for the sufferers.

• 한국실내디자인학회논문집
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• 제9호
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• pp.67-76
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• 1996

One of the most important thing in studying the form of the interior architecture is to set up the methodology of the morphological of the morphological analysis. This article tries to introduce one of such attempts namely, that of Dr. Hisao Koyama, professor of Tokyo University , by applying it to one of F.L. Wright's works, the Robie residence . Professor Koyama has outlined a new methodology of morphologically analyzing the interior architectures, by shifting his focus of analysis from the external conditions of a form, such as functional personal and social traits and traits of the time, to the internal conditions of the form as itself. The outcome of the analysis clearly shows that the Robie Residence , classically known by its horizontality, does have a coexisting factor of verticality. This implies that such a method is useful in revealing the aesthetic compounds of the interior architectures, this time that of F.L. Wright , in a more concrete way. Such an outcome can hopefully be applied to the practices of designing the interior architectures.

• 말소리와 음성과학
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• 제12권4호
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• pp.9-17
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• 2020

Changes in the first language (L1) sound system as a result of acquiring a second language (L2) (i.e., phonetic drift) have received considerable attention from a variety of speakers, settings, and environments. Less attention has been given to phonetic drift in adult speakers' L2 learning as their length of residence in America (LOR) increases. This study examines the effects of LOR on voice onset time (VOT) in L1 Korean stops. Three different groups of Korean adult learners of L2 English were compared to assess how malleable their L1 representations are in terms of LOR and whether there is any relationship between L1 change and L2 acquisition. The results showed that the effect of LOR was linguistically unimportant in the production of Korean stops. However, VOT merger as evidence of sound change in Korean stops were robust in the speech production of most of the female speakers across the groups. The results suggest that L2 English may not be the primary cause of L1 sound change. For generalizability, further study is necessary to see whether other acoustic cues show a similar pattern.

• 한국실내디자인학회논문집
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• 제13호
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• pp.174-180
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• 1997

This study is on the spacial flexbility of house. In the recent days, it is true that the qualitative aspect of residence rather than the quantitative one has emphasized. But the inhabitants of residence undergo adaptation problems to deal with changing needs constantly. Residence must be the place to satisfy inhabitant's desire to live and dwell. According to changes in family life cylce and personal demand, the flexibility in housing should be beneficial. This study attempts to solve relationships of these need changes and inhabitant's adaptation through the spatial flexibility. Throughout the process of main discourse, some theoretical backgrounds of housing are applied. And to introduce the flexibility of residential space, concepts of flexibility according to 'time' and 'spatial structure' are employed. In addition to functionality and comfort, living should provide a touch of humanity attuned to individual sensibilities. The purpose of this study is to suggest a method can move interior structure by the flexible planning.

• 한국주거학회논문집
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• 제12권2호
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• pp.109-122
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• 2001

The purpose of this study was to find out the remodeling contents by the length of residence of remodeling the housing for 472 households living in small and medium-sized apartments in Pusan and Ulsan areas. The subjects of this survey have remodelled their housing 1.58 times during 4.57 years of residence in average. All of them had changes of finishing in living rooms, masters bedrooms, other bedrooms, kitchens and dining rooms and changes of facilities in kitchens, dining rooms, living rooms and bathrooms. The changes of structure and use age have been performed only by the limited numbers of households. Time of remodelling was mostly right after moving in and then about once in two or three years. But it differed according to the room of the housing and the types of remodelling.

• 한국주거학회논문집
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• 제24권6호
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• pp.111-121
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• 2013

Recently housing demands are going to be diversified, and many suggestions are driven for the housing consumer's right of choice and expectation for welfare services. These require the policy change from the clear division between houses and facilities toward more market-oriented concept capable of mixed-use development of houses with facilities. The research explores the possibilities to provide various types of mixed-use developments of houses and facilities in the level of architectural design and political implication. Major case studies focus on the elderly welfare housing with serviced residence with the comparison of similar cases in Japan. The policy implications are, first, expanding the production of elderly housing with more elderly care services, second, challenging time-sharing residence composed of serviced residence and small dwelling units, third, activating the production of small scale housing development with small public facilities. The simulation shows the merits and demerits of this concepts and the efficacy of the policy implications.

• 한국실내디자인학회논문집
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• 제21권1호
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• pp.11-19
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• 2012

The purpose of this study is to categorize elderly people's behavior using the questionnaire filling up by oneself for 24hours and to analyze the time required according to behavior and space. Also, through analytical researches, we find a way to develop smart home service. In this study, we carry out a questionnaire targeting a number of 20 elderly people. The questionnaire is to survey elderly people's behaviors for 24hours. Questionnaire items consist of three parts : items for checking time required about a daily behavior, items for analyzing a space in daily lives, generalities. This study is analyzed through descriptive statistics. The results of this study were as follows. Firstly, the elderly people's behaviors were eight categories. Among these behavior's categories, the highest portion is the behavior related to Individual maintenance such as sleep, personal hygiene, nap, etc. by 49%. Secondly, the portion of time required in residence based on daily lives is higher than outside of residence by 73%. Lastly, analyzing each space in residence focused on time required of elderly people's behaviors, bed room is the highest portion by 49%, and followed by living room with 29% and kitchen with 15%, and bath room with 7%.

• 대한영양사협회학술지
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• 제17권4호
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• pp.335-348
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• 2011

This study was designed to compare the dietary habits of women's university students according to residence type. The subjects were 140 females divided into four groups. The first group consisted of students residing at home with their parents (home, n=39), the second group consisted of students residing in a dormitory (dormitory, n=34), the third group consisted of students residing in a boarding house (boarding, n=36), and the fourth group consisted of self-boarding students (self-boarding, n=31). The average age was 21.9 years, and the BMI levels of the groups were $20.8kg/m^2$, $19.6kg/m^2$, $20.5kg/m^2$, and $19.7kg/m^2$, respectively. The 'home' group had higher dietary regularity than the other groups (P<0.05). The boarding group and self-boarding group were more likely to eat out and skip breakfast than the home and dormitory groups (P<0.05). All groups indicated that frequency of snacking was higher than 1 time per day, but there was no significant difference between the groups. The dormitory and boarding groups spent less time consuming meals than the other groups. In conclusion, women's university students show different dietary behaviors according to residence type. Especially, the dormitory, boarding, and self-boarding groups need to improve their dietary habits through high quality education and nutritional support at college cafeterias.

• 한국항공우주학회지
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• 제30권2호
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• pp.91-97
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• 2002

응축영역 에너지 방정식과 기체 영역에 관한 화염모델을 사용하여 연소실 압력 강하에 반응하는 고체 추진제의 동적 소화 특성을 살펴보았다. 화염모델에서는 기체가 반응영역을 통과하는데 걸리는 시간(잔존시간, r,)이 동적 소화 특성을 결정하는 중요한 인자임을 확인하였다. 본 논문에서는 r,을 확산과 화학반응 시간의 다양한 조합으로 가정하였으며 이를 이용하여 동적 소화 특성을 살펴보았다. 또한 연소실 부피의 유한함에 따른 압력변화와 이에 대한 연소의 동적 반응도 살펴보았다. 동적 소화는 화학반응 시간보다는 확산 시간에 의하여 커다란 영향을 받는 현상임을 확인하였다. 그리고 연소실 부피가 유한한 경우가 무한한 경우보다 복잡한 동적 소화 특성을 보여주었다.