• Journal of the Korea Institute of Building Construction
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• v.5 no.4 s.18
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• pp.91-98
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• 2005

This paper illustrates a comparative analysis on the economic efficiency of remodeling method that is one of major factors in totting more desirable standards and proposes to utilize LCC calculation techniques in generating a required budget for more effective quantity-based analysis that is both objective and effect. Rather than comparing only the initial lost of two different methods, it seems through to compare their entire life cycle cost that includes any repair and reconstruction/ remodeling expenses, thus generate overall quantitative analysis in objective perspective

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.6 no.1
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• pp.12-18
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• 2000

If optimum design technique is applied in the design of packaging container for bulk materials, merits on the side of not only economic and compression performance but distribution efficiency are expected. In this study, on the ground of the optimum models for required board area and compression strength performance, optimum design program having faculties of outward and inward optimum design and information design was developed. This program was composed of input module, output module, database and management module, and calculation module. Though the packaging specifications ars same, requied board area, board composition and cost of container were greatly different according to exterior packaging conditions. Also, about 12% in weight of container was lighter, and about $13{\sim}17%$ in cost of container was reduced when the program was applied for 2 kinds of bulk materials.

• Journal of Korean Society of Water and Wastewater
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• v.19 no.1
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• pp.8-15
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• 2005

Field measurement data on water leakage are not readily available and it causes inaccurate assessment of water demand and poor supply planning. In this study, the procedure for leakage detection and unaccounted water calculation is proposed and applied to a city. The city has suffered from the significant amount of leak water and the financial loss as a result. Measurements were made for pressure and flow at 18 locations before and after the repair. Repair of the leakage increased pressure up to $2.0kgf/cm^2$ and saved 17.1% of water supply from distribution reservoirs. Monetary value of annual water savings for the entire city amounts to 1 billion won. It is believed that leakage detection and data analysis conducted in this study will contribute to the change of current practice and to the establishment of better water supply management system.

• Journal of the military operations research society of Korea
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• v.30 no.1
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• pp.15-29
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• 2004

The existing CSP systems is inefficient and brings about waste of budget in some operating aspects which show accumulation of unnecessary items, omitted or running short items and limitation of timely use of them. The purpose of this study is to analyze the actual situation of existing CSP(calculation and estimation of CSP requirements), and to suggest a few methods (post control system by activating buy-back system, and middle and long term operating system itself in relation to budget) to improve the CSP operating systems in order to maximize the effectiveness of combat strength and to contribute to the economic efficiency of defense management. The results show that improved method is efficient and effective by comparing with some actual data.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1270-1271
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• 2011

A study on the energy consumption(weigh against of the energy consumption for analyzed oven) and the energy consumption of follow cooking time (weigh against of cooking time for analyzed oven)through weigh against far-infrared radiation oven and other system. for this study, analysis the energy consumption follow temperature change and calculate the energy consumption until come to saturation temperature. also, the energy consumption is measured for food analysis follow cooking time. The energy reduced cost and time is estimated.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.492_493
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• 2009

In this paper, we analyzed relation between weather distribution and output of PV module. Equivalent circuit of PV module was derived. Output of PV array was calculated considering temperature and insolation as input. Output of PV array installed on the roof top was also measured. Then, comparison between results was carried out to verify that relation between input and output is appropriate. Distribution of insolation and temperature was derived from KMA (Korea Meteorological Administration). Distribution of PV output was deduced, by considering weather distribution. The result of this paper can be used in economic analysis and reliability calculation.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.554-559
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• 2007

The cylinder cover stud for assembling the combustion chamber components of low-speed marine diesel engine is one of the main structural components in engine. To understand the structural behavior of the stud is quite important for safe and economic design of it. In this paper, the structural behavior and design adequacy of the stud have been evaluated through strain measurement and structural analysis for the world's two largest engine types. Moreover, a feasibility study for design modification was carried out based on fatigue test and calculation. The results showed that 1) the stud experiences very high stress ratio under normal operating conditions, 2) the fatigue strength of the stud is sufficient, and 3) results from strain measurement and structural analysis were quite close each other.

• Proceedings of the Technology Innovation Conference
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• 2003.02a
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• pp.27-40
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• 2003

Though it has been recognized that the accumulation of technological knowledge has been the core competency to reinforce the competitiveness of individual firms and to raise the innovation capability of social and economic systems, only single or fragmentary variables, such as R&D expenditure, R&D stock, the number of researchers and the number of R&D employee have been adopted to measure the amount of technological knowledge. In this research, we use nine conventional technological knowledge measures under the conceptual structure of input-output framework to technological knowledge. Applying correlation and factor analysis, we examine the relationships among the nine proxy measures quantitatively and suggest the new approach for the calculation of technological knowledge index as a aggregated measure.

• Journal of the Korea Institute of Military Science and Technology
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• v.9 no.3
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• pp.20-24
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• 2006

In this paper, our research efforts and activities for displaying flight simulation graphics on multi-monitors connected to a Linux cluster is introduced. In this pilot system graphics rendering as well as view calculation including LOD implementation for each monitor is peformed on each sub-node computer connected to the monitor rather than using an expensive main server. The Linux cluster is constructed by combining general-purpose desktop computers, and MPI library Is used for communication between sub-nodes. It could be concluded from our experience that it is possible to construct a massive multi-monitor display system by adding to the cluster as many sub-node computers and monitors as possible with economic efficiency.

• International Journal of Human Ecology
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• v.7 no.1
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• pp.85-95
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• 2006

The purpose of this study was to examine differences in clothing shopping orientation among female adults according to their level of self-esteem and body cathexis. The subjects included 460 women ranging in age from 20 to 69, living in the Daegu area. The data was analyzed by frequency, factor-analysis, mean calculation, ANOVA and the Duncan-test using the SPSS-package. The overall results are as follows: First, clothing shopping orientation fell into five categories: 'hedonic', 'trend conscious', 'store-patronizing', 'economic', and 'independent' shopping orientation. Second, there were measurable differences in clothing shopping orientation related to one's level of self-esteem. Third, there was a significant difference in clothing shopping orientation according to the one's level of body cathexis. It appears that high levels of body cathexis do predict a tendency towards a more 'independent' clothing shopping orientation.