• The Transactions of the Korea Information Processing Society
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• v.5 no.6
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• pp.1603-1609
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• 1998

In this paper, we present a development of IP addresstranslator for virtual group network service and an application to Korea Information Infrastructure Pilot projects in Daeduk Science town network, This method can be a way to provide network service for limited virtual groups which are connected to a specialized network. Also this can be used to provide a new network environment for closed user groups in Intranet applications.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 1992.11a
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• pp.45-51
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• 1992

The purpose of this study was to predict the spatial housing demand of households in Seoul with the use of residential choice probabilitics. An multinomial legit model is developed using socio-demographic and housing characteristics. SAS package was utilized to estimate this model. This study used the data obtained by the Korea Rosearch Institute for Human Settlemente in 1989. The sample size was 3941 households in Seoul.The residential choice probability varicd depending upon the residential area, head age, head age, tenure and work place. The households with students were more likely to choose kangnam are. The households without young children had higher probability to choose new town near Seoul. Prime reason of this two results were considered the chi Id education and their better housing, Kangnam area was known to be the first consideration for residential choice regardless of work place. Low level of choice probability of kangman area for future residences however, was evidenced. Prime reason of such seemingly contradicting phenomenon is suspected for higher housing prices and limited affordability of people surveyed.

• Journal of the Korean housing association
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• v.18 no.2
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• pp.59-63
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• 2007

In the suburbs near the capital area in Korea, many apartment house complexes are dotted that encircled by field. These apartment house complexes encircled by field, have not park and are abutting on the field, unlike large scale new town. This study is aimed to clear the characteristic of field around these apartment house complexes, consists in development the suburbs near the capital area. As a method of study we conducted greenery evaluation from view of Inhabitant by questionnaire survey. We concluded as follows: inhabitants attach importance to the nature around apartment house complex when move into that; inhabitants are satisfied and feel nature about the field; inhabitants tend to take field as a sight; inhabitants need low-rise development for harmony with field.

• Journal of the Korean housing association
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• v.14 no.4
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• pp.31-38
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• 2003

This study was designed to know the planning for future elderly living of middle aged women. The specific objects were to grasp preferred characteristics of their living together and housing in the elderly stage, economic preparation for the elderly. Data were collected through a questionnaire survey. The subject were 342 middle aged women living in the capital area. Frequency, percentage, and f2_test were used. The results showed that they wanted more emotional support than physical support from adult children, and wanted to make career for themselves in economic aspect. The most preferred housing for the their elderly stage was not only silver town. but also general housing type, for example, apartment and detached house. Therefore, it will be necessary to develop new housing and remodeling system of existing house for more independently elderly living.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2005.11a
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• pp.263-268
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• 2005

The aim of this study was to analyse the design characteristics of court housing. In spite of changes of housing design condition, especially density, there have been changes only in the height of housing block, not in the housing types, layout system and other design properties. Due to the situation, housing design in Korea has been criticised as too routine and monotonous one. As one of the alternatives to respond to the criticism, this study focused on the positive aspects of the court housing type, and suggested the design strategies throughout the analysis of 8 entries in the design competition of EunPyeong NewTown, which attempted to overcome the negative problems - mainly the daylighting, orientation, and privacy- of this housing type. Throughout the analysis, there suggested design strategies to respond to the problems of court housing type, which can be the basis for the court housing design in Korea.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2005.10a
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• pp.48-51
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• 2005

The purpose of this study is to provide a basic study for a desirable bathroom planning of the 30s pyung apartments. This study explores the change of the bathroom planning and analyzes the bathroom plans of the existing apartments. The data are 927 case of the bathroom plans of the 30s pyung apartments constructed in Seoul and the new town between 1971-2003. Where 145,807 households live. In this study, a trend of the bathroom form, numble in the 30s pyung apartments are examined. For the better planning of the bathroom. factors like family size. life cycle, and manner of bathroom use should be analyzed in the future studies. The analysis of the dweller's consciousness, satisfaction, and the demands on the bathroom in 30s pyung apartments, and to give useful information on bathroom planning of 30s pyung apartments.

• Journal of Korean Society on Water Environment
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• v.21 no.3
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• pp.263-266
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• 2005

Comparison between photocatalysis (UV+$TiO_2$) and sonophotocatalysis (Sonication+UV+$TiO_2$) were performed in lab-scale experiments for the treatment of chloroform. The effect of operational parameters, i.e., initial chloroform concentration, $TiO_2$ concentration, UV light intensity and sonication time on the degradation rate of aqueous solution of chloroform has been examined. The optimal conditions for photocatalysis and sonophotocatalysis processes were determined: initial chloroform concentration was 25 mg/L, the concentration of $TiO_2$ was 200 mg/L and UV light intensity was $6.630 mW/cm^2$, respectively. The optimal sonication time on sonophotocatalysis process was 90 min. Under the optimal conditions, sonophotocatalysis was effective for inducing faster degradation of the chloroform.

• Journal of Korean Society of Transportation
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• v.16 no.4
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• pp.75-88
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• 1998

서울과 일산 신도시의 출근통행 교통수단 선택모형을 구축하고, 두 도시간 수단선택형태를 분석.비교하였다. 분석을 위한 자료로는 1996년 서울시에서 수행한 가구통행실태조사자료를 이용하였으며, 수단선택모형으로는 다항로짓모형을 사용하였다. 두 지역 출근통행 수단선택모형의 모형구조상의 차이 및 모형의 지역간 이전가능성을 분석하였고, 출근통행의 시간가치 및 탄력성을 분석하고 비교하였다. 통계적 검증의 결과 출근통행의 수단선택에 있어서, 모형구조적 측면에서나 선택행태적 측면에서 수단선택모형의 두 도시간 이전은 불가능한 것으로 나타났다. 서울의 출근통행의 시간가치가 일산보다 전반적으로 큰 것으로 분석되었고, 특히 서울의 경우, 택시이용자의 시간가치가 자가용 이용자의 시간가치보다 큰 것으로 나타났다. 두 도시 모두 통행시간에 대한 탄력성 통행비용에 대한 탄력성보다 전반적으로 크며, 버스와 지하철간의 통행시간에 대한 교차탄력성이 매유 높은 것으로 분석되었다.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2002.04a
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• pp.219-228
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• 2002

Because western sea on the shore development is threatening sea ecosystem by decrease of silt and large size land-reclamation work by industrialization causes surrounding weather change and sea change, generate much changes bottom of the sea topography and coastline. Also, is influencing to route for safe entry into port of ship, departure. Therefore, this research did 0m boundary line, anxiety 2m line which appear to coastline of land portion and the border of silt using sea base level of lowest low tone side that is base line that appear because of sea waves to basis data numerical value Tuesday, numerical value by divide drawing that is changed to 4 area and analyze change degree of new airport construction and new town development, seashore by western sea district along the coast development of tide embankment construction and so on and bottom of the sea recognize.

• Journal of the Korean housing association
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• v.24 no.2
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• pp.89-96
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• 2013

Urban design is a specific and detailed action plan which regulates from the development plan to the architectural characteristics of every building and now many new towns by Urban design has been developed after 2000. But recently doubts about the effectiveness of Urban design have been raised in locals. The purpose of this study is to verify the effectiveness of urban design in terms of residents, through case study and the survey of resident's satisfaction on Urban design guidelines. The result of survey of resident's satisfaction on Urban design were above-average satisfaction. And main factors influencing to the resident's satisfaction are the public infrastructure factors, transportation factors, development density factors, and pedestrian environment factors, urban landscape factors. And the total satisfaction was most influenced by the public infrastructure factors among the five factors. To improve the effectiveness of urban design, it is necessary to build specific planning and guidelines to the general.