• Journal of Korean Society of Archives and Records Management
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• v.20 no.3
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• pp.23-37
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• 2020

This paper aims to elaborate on the reality of Gagakgo (架閣庫) by looking into its staff and abolition, given how Gagakgo was originally where diverse archives in Joseon were preserved. This study on Gagakgo, therefore, could be used as a basic reference to grasp the reality of the Joseon's Records Centers and Archives. This institution was changed as a labor organization following changes in the political environment. As a result, the status and operational aspects of the institution also changed. Gagakgo was abolished once during King Sejo (世祖)'s reign and then restored during the period between King Hyojong (孝宗)'s and YoungJo (英祖)'s reign. This restored institution also performed the same role as before. This paper serves as reference to better understand the system of Gagakgo and the archival preservation system in Joseon.

• Journal of Life Science
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• v.13 no.6
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• pp.794-798
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• 2003

Batch production of (S)-phenyl oxirane was investigated using epoxide hydrolase activity of Rhodosporidium toruloides SJ-4. Effect of reaction condition of asymmetric biohydrolysis of racemic phenyl oxirane was analyzed and optimized by response surface methodology. The optimal conditions of pH, temperature and DMSO cosolvent ratio were 7.4, $34^P\circ}C$, and 2.3%(v/v), respectively. The final yield was enhanced up to 67%, and reaction times required to reach 99% ee (enatiomeric excess) decreased down to 50% by response surface methodology Enantiopure (S)-phenyl oxirane with 100% enantiopurity and 24% yield (theoretical yield = 50%) was obtained from racemic substrate.

• Journal of Families and Better Life
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• v.28 no.6
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• pp.183-194
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• 2010

This study investigates the relationship between a mother's self-differentiation and the rearing reviews focused on the mediating effect for the early adjustment of 1 to 2 years old at a nursery. First, the results based on the difference between the child-rearing attitudes of the level of self-differentiation show significance in the affectional-autonomic attitude in the top quarter of the total level of self-differentiation. Second, the level of the self-differentiation depends on the early adjustment results from the significant differences in the sub-elements; except for the emotional fusion that results in the higher the level of mother's self-differentiation that leads to higher early adjustment. Third, the impact of affectional-autonomic and affectional-controlling attitude reflected the positive influence of the entire early adjustment based on the effect of the child-rearing attitude. Finally, the results on whether the mothers' parenting attitudes influences the self-differentiation and the transition of the infant would mediate the early adjustment-relationship as shown in the mediating effect of parenting attitudes. Each type of mediation effect showed an affectional-autonomic and affectional-controlling attitude. In this study, the mother's self-differentiation and the infant nursery process shows the early adjustment associated with variables, the mother's level of self-differentiation, and the parenting attitude that effects the early adjustment that examined the mediation effect in the relations of self-differentiation and the early adjustment of child-rearing attitudes.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.115-122
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• 2004

This study identifies various risk factors associated with activities of early construction stage, then establishes the Risk Breakdown Structure(RBS) by classifying the risks into the three groups; Common risks, risks for Earth works, and risks for Foundation works. The Common risks are identified and classified by considering various aspects of the early construction stage such as financial, political, constructional aspects, etc. The risks for Earth works and Foundation works are identified in detail by surveying technical specifications, relevant claim cases and interviewing with experts. These risks are classified based on the Wok Breakdown Structure(WBS) of the early construction stage. The WBS presented in this study classifies the works of early construction stage into four categories; excavation, sheeting works, foundation works, footing works. This study suggests a risk analysis method using fuzzy theory for construction projects. Construction risks are generally evaluated as vague linguistic value by subjective decision making. Fuzzy theory is a proper method to quantify vague conditions of construction activities. Therefore, this study utilizes fuzzy theory to analyse construction risks. The weight of risks is estimated by reflecting the interrelationship among risk factors from absolute weights obtained by fuzzy measure into the relative weights by Analytical Hierarchy Process(AHP). The interrelationship is estimated by Sugeno-fuzzy measure.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.864-867
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• 2007

Recent advancement in ICT and IT infrastructure drives the construction industry towards a IT-based industry. Accordingly, the importance of the planning phase of a project is significantly highlighted due to recent large-scale national development projects such as U-city and multifunctional administration city. various development and studies are conducted on the convergence of 3D CAD and GIS in order to support the decision making by simulation of each phase of construction prior to the actual construction of a building. However there has been limits to the implementation of the IT technology in the planning phase due to its characteristics such as high reliability on the experts knowledge and the compliance of the administration work. In this study, a trendy issue of the convergence of the GIS technology with the 3D CAD design data is suggested to improve the efficiency of a decision support in the planning phase.

• Archives of design research
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• v.15 no.3
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• pp.213-222
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• 2002

Graphic User Interface has been playing a great role in giving people easy access of computer. The research of implementing graphic image on the computer display and inventing mouse were the threshold of GUI's birth in 1960s, and those were succeeded to developing the first GUI based-computer at the Xerox research center in 1970s. An education theory for the children and the visual metaphor of real life environment were adapted to implement GUI. They were continuously studied and tested in the beginning of creating the GUI concept and design method. In 1980s, the GUI concept and design method were generally applied to all personal computer development. Apple and Microsoft have led the commercialization of their GUI based-05, and also got their own positions in the market as GUI standards in 1990s. The first research for the GUI based-computer implementation in Xerox has established very clear concept and design methods. This GUI standards are evolving Into more convenient and natural ways in various computing environment and developing technologies these days.

• Journal of Korean Society of Environmental Engineers
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• v.33 no.11
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• pp.804-811
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• 2011

The aim of this study is to evaluate the applicability of adsorption models for understanding adsorption properties of adsorbents. For this study, the adsorption charateristics of $NO_3^-$ by commercial anion exchange resin, PA-308, were investigated in bach process. The adsorption kinetic data for $NO_3^-$ by anion exchange resin showed two stage process comprising a fast initial adsorption process and a slower second adsorption process. Both the pseudo-first-order kinetic model and the pseudo-second-order kinetic model could not be used to predict the adsorption kinetics of $NO_3^-$ onto anion exchange resin for the entire sorption period. Only the fast initial portion ($t{\leq}20min$) of adsorption kinetics was found to follow pseudo-first-order kinetic model and controlled mainly by external diffusion that is very fast and high, whereas, the slower second portion (t > 20 min) of adsorption kinetics seems to be controlled by a second-order chemical reaction and by intraparticle diffusion.

• Fire Science and Engineering
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• v.19 no.4 s.60
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• pp.32-36
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• 2005

A water mist system was considered as a possible alternative to a gaseous suppression system that can not prevent re-ignition after fire extinguishment for a power transformer room. This study deals with the fire suppression capability of the water mist systems. High-and low-pressure water mist systems were examined to compare efficiency of both systems. The power transformer examined in this study occupied about $7\%$ of a $10m\times10m\times$ transformer room. Full-scale suppression tests were performed for six different fire scenarios: two spray fires, three pool fires and one cascade fire. The fire suppression test results demonstrated that the high-pressure system was superior to the low-pressure system, especially considering oxygen depletion and the ambient temperature distribution.

• Journal of the Korean Society of Food Culture
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• v.11 no.1
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• pp.37-42
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• 1996

We have studied specific properties of magnetic treated water as processing water will make different cookery form the case of piped tap water. The result is as follows; The magnetic treated water both from tap water and pure water became more alkaline than not-magnetic treated water in pH change. As time goes on, magnetic treated or not, pH reduced considerably in piped tap water and increased in pure water. The magnetic treated water showed higher hydration rate than piped tap water in hydration of dried food. According to time, difference of hydration between tap water group and magnetic-treatment water group became significantly. Surface tension of magnetic treated water was slightly lower than that of piped tap water. And it reduced considerably with time. The magnetic treated water showed significantly effective outflow of salt especially in initial phase of soaking in salt-in food.

• Korean Journal of Social Welfare Studies
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• v.45 no.2
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• pp.233-261
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• 2014

There are two competing models explaining the causal relationship of depression and self-esteem, and they are cognitive vulnerability model and the scar model. Cognitive vulnerability model explains that low self-esteem poses as a risk factor for development of depressive symptoms/depression while the scar model asserts that the experiences of depression scars the cognitive function of individuals, resulting in negative self-perception. This study was set out to test two models on Korean adults, and to identify factors that are associated with depression and self-esteem relationship. The first four waves (wave 1~4) of the Korea Welfare Panel Study (KOWEPS) were used for analyses, and latent growth curve modeling was employed to examine the relationship. The findings show that the relationship was reciprocal, one affecting the growth trajectory of another over a four year period. Furthermore, education, poverty status, health status, and satisfaction with social relationships were found to be significantly associated with both depression and self-esteem trajectories. Implications for practice and theory are provided.