• Korean Journal of Construction Engineering and Management
• /
• v.22 no.2
• /
• pp.42-52
• /
• 2021

The cost of remodeling parking lots of apartment houses accounts for about 20 percent of the total cost of remodeling. This means that when the remodeling cost of the underground parking lot is known, it becomes possible to estimate the total construction cost. The standard of estimation referenced when calculating the construction cost is difficult to apply to calculating the remodeling cost. Thus, a construction cost estimation model that reflects the characteristics of remodeling construction is necessary. This study developed a basic construction cost estimation model for expansion remodeling of underground parking lots of apartment houses that calculates the approximate cost of construction by reflecting the characteristics and design elements of remodeling. Based on literature review and consultation with experts, 37 activities of underground parking lot remodeling construction were derived. In order to enable calculation of approximate construction cost before the remodeling design drawing is finalized, the quantity calculation formula and unit price for each activity were presented. Based on expert advice, 13 factors that affect the increase in construction cost and weights of each factor were determined. As a result of applying three cases of remodeling complexes to the basic cost estimation model, the accuracy was confirmed to be 93 percent on average.

• Asian-Australasian Journal of Animal Sciences
• /
• v.28 no.10
• /
• pp.1512-1518
• /
• 2015

This experiment was conducted to assess the welfare and productivity of gestating gilts in groups with the electronic sow feeding (ESF) system compared to conventional stalls. A total of 83 gilts ($Yorkshire{\times}Landrace$) were housed into individual stalls to be artificially inseminated. Gilts confirmed pregnant were introduced to their treatment, conventional stalls (ST) or groups with the ESF system. All gilts were taken to the farrowing crates one week prior to their expected farrowing date. In the gestation period, there were no significant differences between gilts allocated to ST and ESF on growth performance. However, backfat thickness gain (p = 0.08) and body condition score (BCS) at 110 days of gestation (p = 0.10) tended to be higher in ESF gilts than ST. Likewise, gilts housed in group showed significantly higher estimated body muscle contents at 110 days of gestation (p = 0.02) and body muscle change during gestation (p = 0.01). There was a trend for a shorter parturition time in ESF gilts (p = 0.07). In the lactation period, group housed gilts showed a tendency to increased BCS changes (p = 0.06). Reproductive performance did not differ with the exception of piglet mortality (ST = 0.2 no. of piglets vs ESF = 0.4 no. of piglets; p = 0.01). In blood profiles, ST gilts showed a higher cortisol level at 110 days of gestation (p = 0.01). Weaning to estrus interval was shorter in gilts housed in ESF than ST (p = 0.01). In locomotory behaviors, ESF gilts recorded a tendency to elevate locomotion score at 36, 70, and 110 days of gestation (p = 0.07, p = 0.06, and p = 0.06, respectively). Similarly, ESF gilts showed significantly higher incidence of scratches at 36, 70, and 110 days of gestation (p = 0.01). Moreover, farrowing rates were higher in stall treatment (97.6%) compare to group housing treatment (95.2%). In conclusion, while group housed gilts with ESF system positively affected welfare status in combination with less physiologically stressful environments and activity, it negatively effects piglet mortality, farrowing rates and injuries of gilts.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.48 no.2
• /
• pp.45-55
• /
• 2020

In terms of environmental justice, urban parks play a pivotal role in imperative amenities allowing for physical activity. The reasonable distribution of urban park services must be considered in terms of community demand and the context of the park. The purpose of this study is to analyze the inequity of qualitative park service according to the socioeconomic status(SES) in Daegu. The qualitative service was assessed for 82 neighborhood and walking-distance parks by utilizing the NGST(Neighborhood Green Space Tool). The inequity was analyzed by SES variables(ratio of basic living recipients, ratio of single-parent families, average housing sales, dilapidated dwelling ratio, and park area per capita). The features of the qualitative equity in Daegu is as follows. First, urban park planning in Daegu is in parallel with the development of residential areas rather than the local policy. The development pattern of parks stretching from center of the city to outskirts clearly dissociates the city based on socioeconomic status. The parks in the center are relatively old and poorly managed. Second, overall neighborhood parks lacked recreational facilities. The facilities are significantly influenced by the housing values around them. The lower the recreation facility score, the higher the floor gradient of the urban parks constraining physical activities. Third, the quantitative supply of parks has nothing to do with the quality of the urban parks. Green space distribution is highly dependent on natural park areas, so the park area per capita cannot be a standard for assessing qualitative equity.

• The Journal of the Korea Contents Association
• /
• v.14 no.11
• /
• pp.236-248
• /
• 2014

The purpose of this study was to investigate the effects of human, social and cultural capital and ecological variables on volunteering among older adults. In this study, three variables of education, income and physical health were examined as human capital factors, two variables of formal and informal interaction as social capital factors, three variables of religion, cultural organization participation and quality of life as cultural capital factors, and three variables of existence of spouse, housing tenure and residence area as ecological factors. In addition, two variables of volunteering participation and continuous volunteering participation intention were considered as dependent variables. For this study, "Senior Job Replacement Project Participants" data collected by the Korea Labor Force Development Institute for the Aged were used and analyzed employing logistic regression analysis technique. This study found that three human capital variables(education, income, physical health) had positive effects on volunteering participation and continuous participation intention among older adults; of the two social capital variables, informal interaction had a positive effect on both volunteering participation and continuous participation intention, whereas formal interaction had a positive effect only on continuous participation intention; three cultural capital variables(religion, cultural organization participation, quality of life) had positive effects on both volunteering participation and continuous participation intention; and of three ecological variables, housing tenure and residence area had positive effects on volunteering participation and continuous participation intention, whereas existence of spouse had no significant effects on dependent variables.

• Korea journal of population studies
• /
• v.19 no.1
• /
• pp.73-92
• /
• 1996

There are basically three approaches of surveys on the economically active population, namely Labor Force Approach (or Current Status Approach), Usual Status Approach, and Gainful Worker Approach. The selection of an approach among these approaches to be applied to a survey or population census should take into considerations the purpose and background of the survey or the census and the socio-economic situation of a country. In the Korean Population and Housing Census series which have been taken almost every five years since its first round in 1925, a sample survey on the economically active population has been adopted since the 1960 round of census. Even if the labor force approach continued to be applied to the censns prior to 1980, the approach has been different from one round to another in recent rounds. It may be suggested that the labor force approach continue to be adopted for the Korean Population and Housing Census for the following reasons: 1) the proportion of seasonal workers to the total workers is very small, 2) the proportion of population whose type of activity for a specific duration is different from that for one year is small, 3) the approach for the census should be the same as that for a variety of sample surveys on the economically active population which adopt the labor force approach, since the census functions as a population as well as a bench mark for those sample surveys, 4) an application of labor force approach will facilitate international comparisons since most of countries that conduct a population census adopt this approach, 5) the labor force approach can improve the reliability of results, thanks to its short reference period, etc.

• Korean Journal of Construction Engineering and Management
• /
• v.16 no.1
• /
• pp.74-81
• /
• 2015

As one of urban infrastructure system, the electricity substation is critical for urban life and industrial activity as the electricity demands get higher than ever. However the substation is generally regarded as unpleasant or dangerous facility, which finally results in the continuous opposition movement by resident due to the belief of unidentified negative effect in apartment prices. Accordingly, as the scientifically objective and quantitative analysis is required to solve the social conflict, this study intends to examine the variation affected by urban infrastructure system, expecially for substation. After the independent variable defining the price of apartment and the dependent variable, which is apartment price, are identified and their spatial data has been filed, the forecasting model has been developed through the hedonic price function as well as artificial neural networks system. The research finding indicated that the spatial range affected by substation is not notable and the range of some case was applicable for less than 600m. It is expected that these research findings can be applied for establishing the one of solid cases for the analysis of economical effect to local housing market by the urban infrastructure system.

• Korean Journal of Social Welfare
• /
• v.51
• /
• pp.257-286
• /
• 2002

This study intends to develope the resident leadership training in order to activate community organizations. Recently, it has been largely stressed the importance of "community" approach in social welfare practice. Traditionally, the community organization approach was emphasized in the community work methods. But many social workers express their difficulty of doing community organizations when they confront with the practice. Although there were a few cases, it was pointed out that the subgroups of long-lease housing project were not democratic, accountable, or open. This study shows the way to overcome these problems and suggests the programs that can reinforce the resident leadership development. To accomplish these tasks, I have planned programs, implemented, and then analyzed their process by qualitative evaluation methods. I have divided "the general community organization" and "the welfare community organization" to operate the leadership program and took the education and training methods using small groups. This study is significant to suggest the specific program of program planning, the activity methods of step by step community organization practice, and the formation of self- help groups.

• Land and Housing Review
• /
• v.15 no.2
• /
• pp.125-137
• /
• 2024

A conventional Design for Safety (DfS), introduced to eliminate potential hazards in the design phase proactively, has encountered persistent challenges, such as perfunctory risk assessments and hazard identifications based on 2D drawings and inefficient workflow processes. This study proposes a BIM-based approach to Design for Safety (DfS) to address the limitations of conventional methods, aiming to enhance efficiency and achieve practical safety management benefits. The proposed workflow process for BIM-based DfS has been refined and validated for on-site applicability through various case studies, including risk assessments during the design phase and field applications for safety management activities during the construction phase. Specifically, the critical process of risk assessment within the DfS methodology has also been transitioned to a BIM-based approach. This BIM-based risk assessment process has been evaluated through case studies, encompassing safety reviews for structural design, construction equipment operation, and construction methodology with sequence in design projects. Additionally, the proposed BIM-based DfS has demonstrated exceptional on-site applicability and efficiency, as validated by the application of a BIM deliverable embedded in DfS information for CDE-based daily activity briefing, VR-based safety training, AR-based mitigation measures inspections, and other safety management activities in the construction phase.

• Journal of architectural history
• /
• v.22 no.4
• /
• pp.19-34
• /
• 2013

The founder of the 'Paik In - Je House in Ga Hui Dong' in the Bukchon Hanok Village was found as Han Sang- Ryong (1880.11.14. ~ 1947.?) and the time when it was built was by the late June in 1913. Han Sang Ryong was the director of the HanSung Bank during the Japanese colonial period and he was the industrialist in the management committee and the economy coordinator in the economic area. The way how he could accumulate the huge amount of money was because his Uncle Lee Yoon Yong and Lee Wan Yong brothers were participating in various concessions under the protection of the colony government such as Chosun colonial government. Through seven years of preparation for building the mansion, the social function he presented to his house was 'the house built for the banquet hall'. He invited many celebrities of politics and economy to this house and built his fundaments for his social activity through interactions. To solve the construction concept, he used the way of 'duplicity and juxtaposition', and his mansion was reborn as a modernized urban Hanok through the reinterpretation by his program out of the old Confucian rules. Han Sang Ryong's mansion is significant and valuable in the period since it was a pioneer in challenging the creative housing in the developing stage of Hanok in early modern era, and the highest social level people were trying to show off through the Hanok as a product.

• Journal of Digital Convergence
• /
• v.13 no.8
• /
• pp.465-472
• /
• 2015

The virtual reality technology is currently used classifying functional types such as the observation operation type, the experimental activity type, the learning information type, the field problem-solving type, and other different types, based on the media's characteristics implementing 3D form of multi-sensory information. Using Virtual Reality, the restoration of the 'Doksu Palace' has been grafted onto J. Keller's ARCS model, suggesting a field restoration concept that reenacts the lives of the people that had been in the field with the cultural heritage and history based on a scenario based scene direction. This paper also summarizes 3 different types of implementation of the field restoration assorting multi-scene direction. Certain limitations exist, due to the fact that a completed prototype hasn't been suggested and that a detailed notion of the housing and 3D audio connection has been omitted.