An Analysis of Electricity Consumption Profile based on Measurement Data in Apartment Complex in Daejeon (original) (raw)
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A Study on Apartment Transaction Price Index Using Cluster Analysis - Focused on the case of Seoul
Journal of Real Estate Analysis, 2017
This paper suggests a new method for calculating the transaction price index, which applies cluster analysis to ameliorate interregional heterogeneity and instability caused by missing data of transaction prices. In order to address the issue concerning missing values, absent data were estimated by using either the linear regression model, which utilized clustering information, or the linear interpolation model, depending on the continuity patterns of missing values. And in order to address the issue of interregional heterogeneity, the clustering analysis-applied apartment transaction price index for administrative district Gu was drawn from information on transaction prices of administrative district Dong. As a result of analyzing data of apartment transaction prices in Seoul from July 2011 to June 2016, it was found that the clustering analysis-based apartment transaction price index is more suitable than the existing index in terms of data applicability and the alleviation of regional inconsistencies.
생애주기비용 분석을 통한 벽식 구조 공동주택과 장수명 공동주택의 경제성 비교 연구
Korean Journal of Construction Engineering and Management, 2014
Ministry of Land, Infrastructure and Transport (MOLIT) promote long-life housing to reduce social costs generated by poorly considered rebuilding and extend the lifespan of housing. Long-life housing has advantages of durability, floor plan variability, efficient maintenance and ease of remodeling because it is a beam-column structure building. However, long-life housing requires somewhat higher initial construction cost than wall type apartments. It makes increase of long-life housing more difficult. In this study, we compare between wall-type apartment and beamcolumn structure apartment from Life-Cycle Cost's viewpoint. As a result of the study, long-life housing incurs 18% higher initial cost than wall type apartment, but is 7% more economical than wall type apartment in terms of Life Cycle Cost. Therefore, it is shown that long-life housing could be a beneficial alternative to traditional wall type apartments.
Korean Journal of Community Nutrition
Objectives: This study aimed to determine the nutritional status of residents, to examine the perception and needs of community nutrition care service, and to compare and analyze the results of females and males living in Daejeon, Korea. Methods: The subjects were 592 adults and elderly (278 men and 314 women) residents of Daejeon. The dietary quality was assessed using the nutrition quotient (NQ), and data of the perception and needs for community nutrition care service were obtained by a questionnaire survey. Descriptive analysis was applied to analyze the demographic characteristics, perception and needs of the respondents, and independent t-test and chi-square test were performed to analyze and compare the differences between female and male participants. Results: A nutritional status that required monitoring was established in 78.9% of the respondents in this study. The balance factor (29.1 points) was much lower than the national average. In the diversity factor, the NQ score of the female group was 47.6 points, which was 8 points lower than that of males; the NQ grade was 43.9%, showing a significant difference between females and males (P < 0.001). The respondents answered that those who needed community nutrition care services were residents experiencing health care difficulties. Additionally, dietitians (35.6%) were pointed out as the most suitable service providers. The most important factor of community nutrition care service operation was securing the budget (47.0%). Conclusions: The results of the present study show that Daejeon residents need overall nutrition support, and a demand for community nutrition care services exists. Our findings provide basic data and can serve as a foundation for the development and establishment of a community nutrition care service model.
Characteristics of Youth Attraction Types by Industrial Complexes in Korea
Journal of the Economic Geographical Society of Korea, 2021
The phenomenon that young people avoid employment in industrial complexes, which is one of the biggest issues at social and economic dimension, is getting more important. The purpose of this study is to analyze the characteristics of youth attraction types by industrial complexes by making Youth Attraction Index. First, as the correlation between youth distribution of each industrial complex and youth attraction index of each industrial complex is analyzed, it shows a high level of correlation coefficient. There is also positive correlation between youth distribution of industrial complexes and other specific sectors except for accessibility. In addition, industrial complexes with superior working environment, innovation environment and amenities of surrounded areas are included in type Ⅰ(type with superior youth attraction) and different characteristics are shown by each type. In consideration of these, policy priorities of each type are suggested.
The Korea Spatial Planning Review, 2014
From the perspecitve of Housing asset-based welfare, homeownership has an impact on social benefit as well as asset accumulation effect. It has been known that homeowners are more interested in local affairs than tenants since they want to maintain their investment as a form of housing in terms of economic and psychologic viewpoints. However, it is hard to find such studies which have dealt with social impact of homeownership and most of current literature are focused tenure choice, dwelling satisfaction or asset accumulation impact in Korean context. This study tried to examine whether higher homeownership rate is related with higher voting rate in urban areas with a view that housing can be a tool of local capacity building instead of mere investment target by applying multiple regression analysis. According to the analysis, homeowneship rate is positively correlated with voting rate when we control the other socioeconomic, demographic, political and regional variables. With this result, it is suggested that housing welfare policy should tackle the issues related to enhancing affordability of households to purchase their housing in addition to current policy focused on wide supply of public rental housing.
가구 탄소모니터링 시스템에 의한 탄소배출특성 - 세종시 첫마을을 대상으로
Journal of the Korea Institute of Ecological Architecture and Environment, 2013
Korean Government has developed Sejong City as a new administration city. This city of future was planned and designed toward one of the most eco-friendly city on the basis of ICTs. To attain this object, a carbon emission monitoring system (CEMS) was designed and installed as a part of u-city service which provides various information anytime and anywhere to enrich the people's quality of life. In this paper, at first, the structure and functions of CEMS are introduced. This system is consist of 5 parts-data collection from user and linked public DBs, transforming data into meaningful information for the policy makers, system-user interfacing via statistical tables and graphs, and system maintenance. This system can be operated by the citizen participation through whole the process. With the help of GIS map and graphic interface, statistics of monitored data for both citizen and decision maker provided and after feedback , they have affected on the behaviour of citizen's energy consumption and related policy as well. By the CEMS, energy consumption data of 124 agreed households were collected during 9 months in 2012. Electricity, gas and water consumption were remote-metered automatically by the system and analysed. This showed that more than 85% of CO2 emission is rely on electricity usage. Furthermore, number of family members and size of house influences on the emission of CO2 by each household together with the lifestyle of the occupants. Electricity and water consumption showed the seasonal factor while gas consumption represents the number of family members. Even this paper has limitations caused by 9 months of data collection, it shows the policy directions to reduce the emission of CO2 focusing on the house size and number of family members of each households. With the result of this research, lifestyle of the generation of dwellers should be investigated and the CO2 emission characteristics of other housing type as well for the data building for future policy making.
임베디드 소프트웨어의 소모전력 분석을 위한 에너지 컴포넌트 라이브러리
The KIPS Transactions:PartD, 2009
Along with the complexity and size growth of embedded software, it is critical to meet the nonfunctional requirements such as power consumption as well as functional requirements such as correctness. This paper, apart from the existing studies of source code-based power analysis, proposes an approach of model-based power analysis using UML 2.0. Specially, we focus on the development of energy library to analyze the power consumption of embedded software. Our energy library supports model-based power analysis, and also supports the easy adaption for the change of embedded application.
A Study on LED Lighting Environment of Asians and Westerners by Behaviors in Residential Space
2013
This study describes the difference of lighting directing techniques of between asian and westerner in the residential space, and presents the LED lighting environment according to the residents' behaviors. This study was conducted with Koreans, European and North Americans, and the space range was limited to the living room where the various activities occur. The data of the desired LED lighting environment is drawn through lighting technique, illumination color temperature and illuminance variation of LED in living room, and the detailed study results are as follows ; First, the lighting in living space should be made with considering the various behaviors because the expected level according to consideration or not of behavior makes much difference. Second, the comfortably feeling LED lighting environments that are lighting technique, illumination color temperature and illuminance variation, are different between Koreans and North Americans, but Koreans and European feel comfortable under the similar LED lighting environments. Third, the data for the comfortable LED lighting environments is established according to the various residents' behaviors, which are watching TV, reading, studying, relaxing, chatting, entertaining guests. And then, the established LED lighting environments are analyzed with characteristic of behavior and classified according to lighting technique, illumination color temperature and illuminance variation for understanding their characteristic Few studies have been conducted to find out difference of the comfortably feeling LED lighting environment between asians and westerners. Therefore, in this study, it has a great significance to present the difference of the LED lighting environments that asians and westerners feel comfortable in living space, and to draw the characteristic of the expected lighting environment according to residents' behaviors.
A study of Comparative Analysis of CPV and PV Module through Long-term Outdoor Testing
Current photovoltaic research, 2017
Today, photovoltaic power generation mostly uses Si crystalline solar cell modules. The most vulnerable part of the Si solar cell module is that the power generation decreases due to the temperature rise. But, it is widely used because of low installation cost. In the solar market, where Si crystalline solar cell modules are widely used. The CPV (Concentrated Photovoltaic) module appeared in the solar market. The CPV module reduces the manufacturing cost of the solar cell by using non-Si in the solar cell. Also, there is an advantage that a rise in temperature does not cause a drop in power generation. But this requires high technology to install and has a disadvantage that the initial installation cost is expensive compared to normal Si solar cell module. So that we built a testbed to see these characteristics. The testbed was used to measure the amount of power generation in a long-term outdoor environment and compared with the general Si solar cell module.