• Journal of Powder Materials
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• v.6 no.3
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• pp.238-245
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• 1999

The preparation of $n-TiO_2$ powder by the Chemical Vapor Synthesis process (CVS) was studied using the liquid metal organic precursor (TTIP). The residence time and the collection methods were considered as main processing variables through the experiments. The CVS equipment consisted of a micropump and a flashvaporizer, a tube furnace and a tubular collection device. The synthesis was performed at $1000^{\circ}C$ with various sets of collection zone. The residence time and the total system pressure were controlled in the range of 3~20 ms and 10 mbar, respectively. Nitrogen adsorption, X-ray diffraction and electron microscopy were used to determine particle size, specific surface area and crystallographic structure. The grain size of the as-prepared $n-TiO_2$ powder was in the range of 2~8 nm for all synthesis parameters and the powder exhibited only little agglomeration. The relationship between particle characteristics and the processing variables is reviewed based on simple growth model.

• Journal of Agricultural Extension & Community Development
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• v.14 no.2
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• pp.279-299
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• 2007

In order to get the practical suggestions concerning the development of the domestic senior facilities in the rural area, a survey was made in the Philippines and Thailand to grip the policies and programs for senior, by visiting the government institute and senior village facilities. As for the Philippines, Philippine Retirement Authority was attracting investment of foreigners and individuals having Philippine citizenship, by issuing SRRV(the Special Resident Retiree's Visa), and as for Thailand, the Thai Longstay Management Company Limited was providing membership system for the abode of foreigners. In case of the domestic residence for seniors, it is suggested that the development of the senior housing community be designed in accordance with the diversified purposes of residence; that is, the prime concern of the community should be reflected on the characteristics of the retiree group (such as the lifestyle, health situation, etc), and at the same time, special concern also be showed on managing the community club house facilities, and keeping the amicable relations between the retiree residents and the local villagers.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2003.09a
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• pp.231-234
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• 2003

Using lysimeter, oxygen and hydrogen isotopic compositions of soil waters were monitored at a test site of Jeju university during November 2002 to June 2003. Oxygen and hydrogen isotopic compositions of soil waters were found to reflect those of precipitation of the study area. Based on d-values, apparent residence times of about 2 and 4 months were found for infiltration of water through the soil layer to depths of 30 cm and 60cm, respectively.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.58-59
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• 2018

In this study, firing experiments were carried out to confirm the foamability of the expansive shale collected from the local area. When expansive shales are subjected to high temperature heat, gas is generated inside and voids are formed. Due to this phenomenon, shale is used as a raw material for lightweight aggregate. Experiments were carried out with different plastic temperature and residence time to find the appropriate plastic temperature for this expansive shale. As a result, the higher the plastic temperature, the more the surface viscosity increased and the gas generated inside were retained. Resulting in a number of internal voids. However, even if the plastic temperature or the medium temperature is high, it is confirmed that sufficient gas is not generated when the residence time is shortened.

• Journal of the Korean Institute of Rural Architecture
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• v.2 no.2
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• pp.63-73
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• 2000

The objectives of this study are understanding on the type and the characteristic of the architecture in the saltern. At result, there are warehouse of the salt, residence of salt man and office building. These architectures are clearly different from Korean traditional architecture and constructed in special area (a saltern), on special purpose. These are not excellent architectural form, but materials and forms of these architectures are reasonably suitable for the regional characteristic and the function. Today, the architecture in the saltern, are gradually disappear, therefore the researches and the memories are meaningful in this study.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2001.05a
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• pp.29-34
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• 2001

The purpose of this study is to provide a practical planning guide for the actual conditions and the preference by user characteristics in one-room housing. The data collected through questionnaire surveys from the residents of one-room housing in kangnam & sinchon. 259 samples we collected and are analyzed by using SPSS-PC. The results are follows : 1) Students: Students prefer monthly rent, down town, of officetel type, 8-l0py room size, and semi-furnished 2)Business men: They prefer multi function housing mixed office and residence, down town, officetel type, 11-l5py, and fully furnished housing. 3)Newly marriged couples: Ordinary habitation site, apt type, 16-l8py ,and 5: 5 division of space(bedroom:others) 4) Old age: normal habitation site, residence-commerce complex building type, middle corridor type, and 11-l5py. 5)Couple+child: lease of deposit basis, apt complex site, and 16-l8py.

• Proceedings of the KAIS Fall Conference
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• 2004.11a
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• pp.272-273
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• 2004

Filter media are one of themost important choices when bilfiltration is applied. Filter media provide adsorbing microbes with available sites for residence and the residential cells grow to degrade or decompose target waste gases. Up to date, filter media were only qualitatively analyzed. As a quantitative approach to filter material for biofiltration, a simple model based on reaction kinetics and mass action law (Ottengraf's Model in 1983) was presented. Cork, zeolite, and granulated activated carbon were tested in terms of effective surface area, cell covered fraction of adsorbing sites, surface roughness, and pore size distribution. The cell covered fraction, surface roughness and hydrophilicity was found to be closely related to the efficiency of gas degradation in biofiltration. The cork was the best candidate for cell residence and growth in this work.

• The Korean Journal of Community Living Science
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• v.25 no.4
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• pp.581-600
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• 2014

This study examines the relationship between food purchase accessibility for 86 homemakers and that for 42 grocery stores. The Study area included Bibong-myeon and Maesong-myeon, Hwaseong-si, Gyeonggi-do, to represent a rural area. The analysis classified three regions (residence, outside of residence, and other areas) and seven types of grocery stores (LDS, CS, NCS, CC, NCC, TM, and other). The expansion of the area range increased the availability of food items and the accessibility of large-scale grocery stores as well as those for food procurement. The respondents had difficulty preparing family meals and buying food items because of a lack of food item variety and the small scale of grocery stores. In particular, fresh meat, fruits, and fish were difficult to purchase, causing some nutritional imbalance. These results suggest a need to develop meal composition samples and programs that can actively encourage the intake of meat and fish products with a diet based in self-produced vegetables for better dietary behaviors.

• Journal of Environmental Science International
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• v.16 no.6
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• pp.677-682
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• 2007

This study was performed to provide the basic information on characteristics of groundwater pollution in Gyeongsan city. Forty two groundwater samples were collected, and pH, DO, COD, $NH_3-N,\;NO_3^--N$, T-N, $PO_4^{3-}-P$, Cl, Ca, Mg, hardness, evaporate residues and others were investigated. And, ANOVA analyses were carried out to reveal the differences in water pollution indicator values of by industry, commerce/residence and agriculture areas. The results were as follows. 1. The mean values of pH, DO, COD, $NH_3-N,\;NO_3^--N$, T-N, $PO_4^{3-}-P$, Cl, evaporate residues, Ca and hardness were 6.9, $7.9mg/\ell,\;0.4mg/\ell,\;2.44mg/\ell,\;2.73mg/\ell,\;6.06mg/\ell,\;0.82mg/\ell,\;32.72mg/\ell,\;381.67mg/\ell,\;41.53mg/\ell,\;177.17mg/\ell$, respectively. 2. As groundwater became deeper, the values of Cl, Ca, Mg, Na, hardness and evaporate residues remarkably increased, but those of COD, $NH_3^--N,\;NO_3^--N,\;NO_2^-N$, T-N decreased. 3. The values of COD, Cl, Ca, Mg, Na, hardness and evaporate residues were very high in industrial area, and those of $NH_3-N,\;NO_2^--N$, T-N were very high in commercial/residential area, and those of $NO_3^--N$ were a little high in agricultural area. 4. The correlations between depth and each value of Mg, Na, Fe, hardness and evaporate residues were highly positive, and those between DO and each value of Mg, Cu, Fe, hardness and evaporate residues were highly negative. 5. According to ANOVA analyses, the differences in three area groups (industry, commerce/residence and agriculture) on the values of $NH_3-N$, T-N, evaporate residues, hardness, Ca, Mg, K and Fe were significant at 1% level.

• Research in Community and Public Health Nursing
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• v.13 no.1
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• pp.68-78
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• 2002

This study intended to analyze the health promoting behaviors by comparing various factors according to the residence areas(Korea or Japan) of Korean Elderly. and to present basic data in planning systematic and effective programs of health promotion for each residence area. The subjects of this study were 164 Korean elders in Daegu, South Korea, and 164 elders in Aichi prefecture, Japan. Data was collected by interviews and self-administered questionnaires from the 1st to the 20th of April in 2000. The tool for this study was based on Walker et al.(1987)'s Health Promotion lifestyle Profiles (HPLP). The analysis was performed with Cronbach's $x^2-test$, t-test. ANCOVA, Kendal tau, Pearson correlation, and Stepwise Multiple Regression test using SPSS program. The results are as follows: 1. There was a significant difference in occupation($x^2$=41.3. p=0.000), the source of the pocket money($x^2$=114.36. p=0.000) by the residence areas in terms of socio-demographic characteristics. 2. There was a significant difference between the two groups on the health promoting behaviors(t=-8.19. p=0.000). The score of elders group in the South Korean group on health promoting behaviors was 2.32. showing 0.33 lower than that of the elders group in Japan(2.65). 3. ANCOVA involving occupation and the source of pocket money as co-variables. showed significant differences (F=15.37. p=0.000) regarding health promoting behaviors according to the residence areas. 4. In consideration of variables that have an influence on health promoting behavior by residence areas, pocket money occupied 11.5% of health promoting behavior in the elders group in South Korea. In the elders group in Japan, pocket money occupied 18.1% of health promoting behavior and 20.6% including education. The suggestions based on the results of this study are as follows.: 1. It is necessary to develop health promoting programs considering the residence areas of Korean elders. 2. It is necessary to develop social programs for improving the education level and solving pocket money problems, which are the significant factors for the health promoting behavior of Korean elders.