• Journal of the Korean Home Economics Association
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• v.30 no.3
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• pp.325-345
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• 1992

The purpose of this study was to investigated the imfluences of family life cycle stages and perception of housework's value on perceived time pressure and role conflict in housewife-teachers. The subjects of this study were 329 married women teachers that teach in junior or senior high schools in Taegu. A questionaire was used as the survey method and for the method of data analysis, factor analysis, MANOVA, and Scheff test as a post-hoc analysis. The major findings were as follows: 1) There were significant interaction effects of family life cycle stages and perception of housework's value on perceived time pressure and role conflict. 2) The main effect for family life cycle stages was significant. 3) Followup univariate F-tests revealed significant mean differences for marital, parental and homemaker's role conflict.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.636-642
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• 2009

The application of LCC-techniques is being introduced at the on-going procurement programs of various techniques. LCC-techniques have the common characteristic that all are designed to motivate contractors to design, manufacture and deliver equipment with lower life cycle costs. You may believe that savings may be in the acquisition cost component of life cycle costs. However, primary emphasis is generally on reducing and controlling operating and support costs by transferring more responsibility to the contractor for equipment operating and support cost performance. It has been found that life cycle cost procurement provisions must be individually tailored to each program. In this study, the currently identified LCC procurement techniques including a variety of LCC incentive provisions are introduced. Moreover, verification method, a procedural issue and incentive to application of LCC-techniques are examined.

• Journal of the Korean Applied Science and Technology
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• v.25 no.1
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• pp.41-47
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• 2008

This study was conducted to made a grid alloy (Pb-Ca-Sn-Al) which has a temporary composition ratio in order to improve the efficiency of lead acid batteries. The positive activity material made a 3BS(tri-basic lead sulfate; $3PbO{\cdot}PbSO_4{\cdot}H_2O$) by a low temperature curing and it evaluates the plate efficiency through the life cycle testing. The initial current capacity of low temperature curing plate was excellent but the life cycle was not good (S1). As for the S2 plate, however, the initial current capacity and the life cycle were superior.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.14 no.2
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• pp.134-142
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• 2002

LCC (Life-Cycle Cost) analysis is a practical method and a guideline for evalua-ting the economic performance of building service systems. By using the LCC analysis, the most cost-effective design decision can be made, which has the lowest LCC during the project study period among the various design alternatives. The present case shows an example of appro-priate use of the LCC analysis, by demonstrating the procedures of decision making among at-tarnative building HVAC systems at community center and congress hall of a local government.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.971-976
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• 2004

The management of railroad structures is more difficult and complicate because there are many structures such as rail, bridge, tunnel, station, and so on. Therefore, LCC(Life Cycle Cost) analysis of railroad structures as public infrastructure must contain a maintenance cost as well as an initial cost in order to make a more effective management during the life cycle on the design phase. This paper presents a cost classification scheme considering user costs such as value of delayed time of passenger and freight. Also, in this study it is developed a probabilistic life cycle cost(PLCC) analysis model of railroad structures taking into account uncertainties and variations of input variables in order to analyze LCC. It may be stated that the model proposed in this study can greatly contribute to the making optimal decision, the estimate of the maintenance cost and the allocate of budget in the project of railroad structures.

• Journal of the Korean Society for Railway
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• v.8 no.6 s.31
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• pp.581-585
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• 2005

In this study, the environmental impacts of a bogie in the electric motor unit(EMU) were evaluated quantitatively using simplified life cycle assessment(S_LCA). Target was the bogie and life cycle inventory(LCI) database for the bogie was established. The software used for simplified LCA was PASS. Environmental impacts with the parts of the bogie were dependent on their weight significantly. Among impact categories, abiotic resource depletion(ARD) and global warming(GW) were shown dominantly. Global warming was occurred mainly due to the emission of CO₂released from energy consumption and abiotic resource depletion was caused mostly by the consumption of iron ore for the manufacturing of steel. Therefore, the environmental impacts of the bogie could be reduced by the light-weighting of EMU and the improvement of energy efficiency.

• International Journal of High-Rise Buildings
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• v.6 no.4
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• pp.333-343
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• 2017

Across the world, building energy codes are becoming stricter, demanding higher levels of energy performance with each issuance. Some locations have taken initiatives to eliminate operational emissions altogether by requiring buildings to be carbon neutral. However, while the objectives of carbon neutrality are without doubt statement worthy, we believe that once operational performance has been tackled to a reasonable level of performance the sights should be trained on a different objective-life; cycle carbon. This paper defines what we mean by life cycle carbon neutrality and presents an approach toward reducing it.

• Journal of the Korea Institute of Building Construction
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• v.8 no.5
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• pp.127-134
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• 2008

The purpose of this study is to propose the decision making technique in roof waterproofing method at the early construction stage. Selecting the suitable construction method is difficult because of the complex interrelationships between many factors of influencing the construction method selection. This study presents an example of selecting suitable method by analyzing LCC (Life Cycle Cost) in roof waterproofing work. In this study, roof waterproofing method is analyzed by LCC(Life Cycle Cost) which is consists of the initial costs, running costs, and removal costs. Sheet waterproofing, membrane waterproofing and asphalt waterproofing costs are compared to select the most economic method. The result of this study revealed that considering LCC is useful in selecting the proper method in the construction work.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.05a
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• pp.149-151
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• 2011

Recently, Architectural Design based on Building Information Modeling(BIM) is popular, construction management based on BIM is necessary. such as Quantity take off, scheduling, and Life Cycle Cost Estimating etc. Therefore, in the study, LCC Estimating using BIM Data, which is extracted from architectural designing process is proposed.

• International Journal of Human Ecology
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• v.11 no.1
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• pp.65-74
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• 2010

Family professionals and family program staff need to consider the importance of program evaluation in Korea since an increasing number of Healthy Family Support Centers are providing diverse intervention and education programs. The purpose of this research paper is to (a) introduce a program evaluation model that includes the program life cycle; (b) help family professionals and family program staff understand the link between program implementation and evaluation processes; and (c) facilitate discussions in terms of program evaluation of Healthy Family Support Centers and evaluation roles of different levels of Healthy Family Support Centers including the headquarters, regional, and local centers. Understanding the program life cycle and relevant evaluation processes will help family professionals and family program staff be more strategic in answering critical questions about a program's effectiveness. The benefits of program evaluation and its implications are discussed.