• 대한안전경영과학회지
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• 제9권5호
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• pp.103-110
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• 2007

To build a most efficient and competitive warehouse, need to reflect tenants various opinions in advance such as location, rentable size, leasing terms, rental, configuration of the building, building structure, traffic flow and amenities. Thus a survey for major tenants which are logistics, retailers and manufactures should be done to figure out potential demand and marketing strategy to lead to be a competitive warehouse. However above survey is time consuming work and requires high cost involvement thus to avoid such an inefficient process and to facilitate investors prompt and right decision making, there should be a tool which helps to make a decision process easier with simple key factors. In other word, we have used above mentioned 'Demand Approach' so far but here I am introducing 'Factors Comparison' which reflects location factors and facility factors. I derived Kwang-myung logistics park's proper rental rate through 'Demand Approach' which analyzed Seoul Metropolitan area's rental warehouse status and rents, and also defined a size of potential demand area and rental. And this report compared the result with an outcome of 'Factors Comparison' then compared each methods and drew a conclusion of 'Factors Comparion's better convenience and efficiency.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2018년도 학술발표회
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• pp.153-153
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• 2018

Water-Energy-Food (WEF) nexus is a new holistic resources management concept that considers the interconnections among resources for sustainable resources planning and management. The current challenge is to fulfill the required demand in the lack of available resources. A traditional way to provide more available resource is by increase in production, but it caused increment of indirect demand of other interlinked resources. Importing resources from other area (where local supply is redundant) is another option to secure local resources with additional economic expenditure. The WEF nexus-trading model adapts the previously developed nationwide nexus simulation model with additional input parameters and functions to simulate trading scenarios. In general, the analysis starts with the quantification of local resources deficit (potential importing amount) and redundancy (potential exporting amount) of each area. Then, a trade module is initiated by determining possible donor area and importation amount. Finally, the nexus simulation for all area is re-run to determine final resources supply-demand results including the trading amount. The trade option provides an opportunity to meet local demands without draining local resources. However, the production capability of donor area may limit the importation amount. The newly developed trade option allows more alternatives for stakeholders to determine resources management plans.

• 경영과학
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• 제19권1호
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• pp.1-12
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• 2002

Performances of common zone with various sizes are examined for possible demand rate variations for an AS/RS. Common zone is a middle area located between the 1st class and the 2nd class to be used by the 1st class Items if the assigned racks are not enough. This area is designed to resolve the rack shortage problem associated with a particular class. In the previous researches, effect of demand rate variation is Ignored since flxed demand rate is assumed. It is found that rack shortage rate is decreased up to 67% of common zone size. However, no difference is found at above 70%. Waiting time tends to be longer with Increased common zone while travel time and throughput are not affected at all with the common zone sloe.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2000년도 학술발표회 발표논문집
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• pp.114-119
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• 2000

To estimate Agricultural water demand, many factors such as weather, type of crop, soil, cultivation method, crop coefficient and cultivation area, etc. must be considered. But it is not easy to estimate water demand in consideration of these many factors, which are variable according to a period and regional environment. So, this study provides estimation system for agricultural water demand(ESAD) in order to estimate water demand easily and accurately, calculates the present and future agricultural water demand and arranges all factors needed for water demand estimation. This study calibrates the application of estimation system for agricultural water demand with the data observed in the other Studies and analyzes agricultural water demand nationwide.

• 상하수도학회지
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• 제30권3호
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• pp.225-231
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• 2016

Peak load rate(i.e., maximum daily flow/average daily flow) has not been considered for industrial water demand planning in Korea to date, while area unit method based on average daily flow has been applied to decide capacity of industrial water treatment plants(WTPs). Designers of industrial WTPs has assumed that peak load would not exist if operation rate of factories in industrial sites were close to 100%. However, peak load rates were calculated as 1.10~2.53 based on daily water flow from 2009 to 2014 for 9 industrial WTPs which have been operated more than 9 years(9-38 years). Furthermore, average operation rates of 9 industrial WTPs was less than 70% which means current area unit method has tendency to overestimate water demand. Therefore, it is not reasonable to consider peak load for the calculation of water demand under current area unit method application to prevent overestimation. However, for the precise future industrial water demand calculation more precise data gathering for average daily flow and consideration of peak load rate are recommended.

• 대한원격탐사학회지
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• 제38권4호
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• pp.421-434
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• 2022

Fine particulate matter (PM2.5) has been the biggest environmental problem in Korea since the 2010s. The present study considers the value of urban forests and green infrastructure as an ecosystem service (ES) concept for PM2.5 reduction based on satellite and spatial data, with a focus on Seoul, Korea A method for the spatial ES assessment that considers social demand variables such as population and land price is suggested. First, an ES assessment based on natural environment information confirms that, while the vitality of vegetation is relatively low, the ES is high in the city center and residential areas, where the concentration of PM2.5 is high. Then, the ES assessment considering social demand (i.e., the ESS) confirms the existence of higher PM2.5 values in residential areas with high population density, and in main downtown areas. This is because the ESS of urban green infrastructure is high in areas with high land prices, high population density, and above-average PM2.5 concentrations. Further, when a future green infrastructure improvement scenario that considers the urban forest management plan is applied, the area of very high ESS is increased by 74% when the vegetation greenness of the green infrastructure in the residential area is increased by only 20%. This result suggests that green infrastructure and urban forests in the residential area should be continuously expanded and managed in order to maximize the PM2.5 reduction ES.

• 대한교통학회지
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• 제27권2호
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• pp.15-22
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• 2009

도시철도 수요를 일반적인 4단계 모형에 의해서 역별로 추정하는 경우에는 몇 가지 한계가 존재한다. 첫째 행정동 기반 사회경제지표를 토대로 하므로 행정동 단위의 도시철도 수요가 추정될 수밖에 없다. 그러나 각 행정동에 1개만이 아닌 2개 이상의 역이 위치할 경우 행정동 단위의 수요를 2개 이상의 역에 적절하게 할당하기가 쉽지 않다. 둘째 역별 도시철도 수요는 행정동보다 공간적 범위가 좁은 역세권 특성에 커다란 영향을 받게 된다. 그러므로 역세권보다 넓은 행정동 전체 특성을 기반으로 한 도시철도 수요 추정과 역별 할당에 의한 역별 수요 추정은 부정확할 수밖에 없다. 위와 같이 행정동을 기반으로 한 자료 사용의 한계로 도시철도 역별 수요를 제대로 추정하기 어려운 점이 존재하여, 본 연구에서는 크게 두 가지 방안을 검토하였다. 첫째는 행정동이 아닌 역세권을 기반으로 하는 사회경제지표 자료를 토대로 역별 수요를 추정하는 방안이다. 그러나 이 방안은 자료 수집과 분석에 너무 많은 시간과 노력이 소요되는 것에 비하여, 추정의 정확도는 크게 높아지지 않는 것으로 나타났다. 둘째는 일반적인 4단계모형을 적용하되 역세권 특성을 반영하기 위해 행정동 센트로이드 위치 및 도시철도 역과의 커넥터 거리를 각 역별로 조정하여 역세권을 반영하는 방안이다. 행정동 센트로이드 위치 및 커넥터 거리를 조정하는 두 번째 방법을 적용하여 역별 수요를 추정한 결과를 실제 집계된 서울시 지하철의 역별 수요를 비교한 결과, 각 역별로 매우 근사한 결과를 나타내었다.

• 보건행정학회지
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• 제15권4호
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• pp.136-160
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• 2005

Before introducing the national long-term care insurance in 2008, the want for long term care service has to be estimated and analysed. This study estimates the demand and analyses what determines the want of long term care service. This study investigated data of 3f6 elderlies, that was collected by age stratified random sampling. The elderies resided in Onyang 4 - dong (urban area) and Dogo-myun (rural area) In the city of Asan. The researchers visited the elderlies and their care giver, and assessed their demand for the long term care service and examined physical, mental, socio-economic status by the assessment tools for Korean Long-Term Care System. $64\%$ of the those who are entitled to be served refuse the long term care service. $26.7\%$ of them wants for home care service and $7.9\%$ want facility care service. It is estimated that the want of home care service are three or four times as much as that of facility care service. The demand for long term care service is 5.155 times higher for those who live in rural area (p=0.000), 3.040 times higher for those who do not have spouse(p=0.057), and 3.356 times higher for the people who is in medicaid than medical insurance(p=0.029). However, income(p=0.782), means(p=0.614), living alone(p=0.223), number of family to live with (p=0.341) and age of the elderly(p=0.420) are not related with the demand of long term care service. The assessment tools for Korean Long-Term Care System for need evaluation of the long term care service can reflect the demand well.(p=0.024) If medical care will cover $80\%$ of total cost, the willingness to pay of the out of pocket money of the people with medical insurance is 67,400 Korean Won(66.77 US$) for the home care service and 182,500 Korean Won(180.78 US$) for the facility care service. There is possibility that long term care demand is still small after Introducing the long term care Insurance due to the care given by family members. When developing service delivery system of long term care insurance, rural area has to be given more consideration than urban area because of the higher demand. The people who do not have spouse or are in medicaid have to be given special consideration as well.

• 토지주택연구
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• 제11권3호
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• pp.49-59
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• 2020

The Seoul's 2030 Youth-Housing is a policy to promote the development of private sector-built rental housing in a Station Influence Area (SIA). It is a representative policy to resolve a housing problem for the youth in Seoul. The Seoul Metropolitan Government has made continuous policy improvements to respond to earlier criticisms on the policy. In December 2018, the Seoul Metropolitan Government enlarged the possible spatial boundaries of the SIA that the private sector developer can carry out the housing development projects. This study attempts to assess the potential sites available in Seoul by considering the youth's demand. This study used the suitability modelling technique to evaluate the potential sites. In detail, we established three sub-models by reflecting rent, accessibility to living areas of the youth, and accessibility to living SOC for the youth's demand. According to the results, the Hanyang City Wall area, which was newly included by the recent policy revision, showed moderate scores to fit the housing projects, while some Gangbuk areas, which have high accessibility and relatively lower rents, showed the best scores appropriate for the projects. The age group of 20s preferred university districts, while the age group of 30s preferred to locate near Seoul's main office areas. We suggest that the Seoul metropolitan government develops better ways to guage and reflect the demand for differing youth groups and the demand by age groups.

• 한국응급구조학회지
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• 제16권1호
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• pp.65-80
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• 2012

Purpose: The objective of this study was to assess the job satisfaction and turnover intention of the emergency medical technicians (EMT) in the private ambulance service, to examine their job satisfaction and turnover intention, and to provide the solution for the management of the private ambulance service. Methods: The survey was conducted with 121 EMTs (73 paramedics, 36 basic EMTs and 12 nurses) in the private ambulance service in Korea from September 15 to October 14, 2011. In the reliability of the questionnaire, Cronbach's ${\alpha}$ was 0.790 for job satisfaction and 0.796 for turnover intention. Using SPSS 18.0, we obtained Cronbach's ${\alpha}$, frequencies, percentages, means, and standard deviations, and performed independent t-tests, ANOVA, and Pearson's correlation analysis. Results: 1) The mean score with regard to job satisfaction was 2.94 and that of their turnover intention was 4.23. In the area of job satisfaction, the mean score of the job demand area was 4.23; 3.97 for the job itself; 3.07 for the area of interaction; 2.98 for the area of autonomy: 2.67 for the organizational demand area; 2.67 for working conditions area; and 1.73 for the wage area. 2) Statistically significant difference was observed in job satisfaction according to age (F=3.819, p=.006), wages (t=-4.640, p=.000), terms of incumbency (F=3.868, p=.011), and in turnover intention it was according to sex (t=-1.995 p=.048), age (F=9.611, p=.000), education levels (F=6.974, p=.002), marital status (t=4.393, p=.000), wages (t=5.515, p=.000), license types (F=8.481, p=.001), and terms of incumbency ( F=14.115, p=.000). 3) The job satisfaction and the turnover intention had a negative correlation to each other (r=-.56, p<.000) in general, and in the sub-7 areas of job satisfaction, the correlation with turnover intention was high in order of the wage area (r=-.61, p=.000), working conditions area (r=-.52, p=.000), the area of autonomy (r=-.49, p=.000), the area of interaction (r=-.45, p=.000), the organizational demand area (r=-.40, p=.000), the job itself (r=-.24, p=.007) and the job demand area (r=-.24, p=.009). Conclusion: The government must take the charge of lowering the turnover intention among paramedics in the private ambulance service by providing the advantage in wages and fringe benefits. Ultimately, this would bring an improvement in the quality of medical emergency services to hospitals especially in the area of patient transfer and transportation.