• Proceedings of the Korean Institute of Interior Design Conference
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• 한국실내디자인학회 2004년도 추계학술발표대회 논문집
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• pp.112-115
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• 2004

Avante-garde arts which are still being continued until now has become not only just a forefather of art, but also the tradition of modern arts which are still being held on. Rem Koolhaas is growing his reputation as an architect like Le Corbuster. Space image and related documents analysis and characteristic interior image analysis rather than whole concept or the structure analysis, which first, making a analysis tool from derived characteristics from theoretical guidance of avante-garde and then by deriving characteristics of avante-garde arts from space consists of Rem Koolhaas, was able to identify that in his work consists contained characteristics of avante-garde arts

• Journal of the Speleological Society of Korea
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• 제92호
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• pp.49-54
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• 2009

Classified by the characteristics of caves, without academic basis, was used by multiple variables of external characteristics of caves, such as accommodation, nearby attractions, number of restaurants & supporting cities. It used cluster analysis as an analysis technique. It is classified in 5 different typesby the results of the analysis, and the results say that the diverse classification of visitors' demand is possible.

• Journal of the Korean Society for Precision Engineering
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• 제8권2호
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• pp.57-68
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• 1991

In this study, to analyse the dynamic characteristics of a machine-tool spindle system, the spindle is mathematically represented by a Timoshenko beam including the internal damping of beam material, and each bearing by four bearing coefficients; stiffness and damping coefficients in moment and radial directions. And the dynamic compliance of the system is calculated by introducing the transfer matrix method, and the complex modal analysis method has been applied for the modal parameter identification. The influence of the bearing coefficients, material damping factor and bearing span on the dynamic characteristics of the system is parametrically examined.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 한국소음진동공학회 1996년도 추계학술대회논문집; 한국과학기술회관, 8 Nov. 1996
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• pp.153-159
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• 1996

The acoustic characteristics of a direct radiator type loudspeaker has been studied in this paper. The vibration displacement of the speaker cone paper obtained by the finite element analysis has been converted into the vibration velocity and used as a boundary condition for the acoustic analysis. The frequency characteristics and the sound pressure distribution of the loudspeaker resulted from the radiation of the cone vibration have been calculated by the boundary element analysis. The numerical results have been verified by experiments carried out in an anechoic chamber. The variations of the acoustic characteristics due to the changes of some design parameters have been examined using the numerical model.

• Design & Manufacturing
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• 제16권2호
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• pp.26-32
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• 2022

It is known that the fluidized bed incinerator, which is the subject of analysis, shows excellent performance in heat and mass transfer due to excellent mixing and contact performance between fluidized sand and fuel, and also shows relatively good combustion characteristics thanks to good mixing and long residence time for low-grade fuels. have. In this study, air flow analysis is performed to understand the characteristics of co-firing of sludge, waste oil and solid waste in the fluidized bed incinerator, flow characteristics of flue gas, and discharge characteristics of pollutants.The fluidized bed incinerator subject to analysis is a facility that incinerates factory waste and general household waste together with sludge, with a processing capacity of 32 tons/day. to be. In addition, the operation method was designed for continuous operation for 24 hours. As a result, it can be seen that the lower combustion air and the introduced secondary air are changed to a strong turbulence and swirl flow form and exit through the outlet while rotating inside the freeboard layer. The homogeneous one-way flow form before reaching the secondary air nozzle has very high diffusivity with the high-speed jet flow of the nozzle.

• Korean Journal of Plant Resources
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• 제19권1호
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• pp.105-111
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• 2006

The objectives of this study, an analysis of fruit and leaf morphological characteristics among the five Zizyphus cultivars could be used for the investigation of cultivars classification and could provide information to make out the UPOV TG(Test Guidelines). ANOVA tests showed that there were statistically significant differences in all fruit and leaf morphological characteristics among the five Zizyphus cultivars at 1% level. But, for kernel characteristics, differences were statistically non-significant among the cultivars. Approximately, the Wolchul and Boeun cultivars showed larger and smaller values in overall characteristics and cultivars, respectively. The results of principal component analysis(PCA) for the fruit and leaf morphological characteristics showed that the first for principal components(PC's) explained about 65.3% of the total variation. The first PC was correlated with those characteristics that were mainly related to the terminal leaf length(TLL), leaf length(LL), fruit length(FL), terminal leaf width(TLW), and leaf petiole length(LPL). The second and third PC was mainly correlated with the terminal leaf morphological index(TLMI). Therefore, these characteristics were important to analysis of the fruit and leaf morphological characteristics and classification among the five Zizyphus cultivars. Cluster analysis using UPGMA method based on principal components showed that five Zizyphus cultivars could be clustered into two groups. Group I comprises Mudung, Wolchul, and Bokjo and Geumsung cultivars, Group II is Boeun cultivar. These results well similar to that of principal component analysis.

• Proceedings of the Korean Society For Composite Materials Conference
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• 한국복합재료학회 2004년도 춘계학술발표대회 논문집
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• pp.288-291
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• 2004

The characteristics of the buckling analysis module for stiffened composite structures were studied in this paper. Composite stiffened structures have geometrical asymmetry and material properties asymmetry. Due to these reason, postbuckling analysis was essential and the characteristics of postbuckling analysis modules for ABAQUS were researched. Static analysis module was considered. By considering the material nonlinearity, progressive failure mechanism was applied and buckling strength was estimated

• Korean Security Journal
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• 제4호
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• pp.47-64
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• 2001

The aim of this study is to investigate the anger characteristics and the social psychological characteristics of Homicide by Female. With SPSS win program I analyzed 80 female murderers caught in the correction facility. The analysis results are as follows : Firstly, the age bracket of the female murderers is very high in their thirties(47.5%), they didn't almost graduate from the middle-school(65%). Secondly, they almost married(92.5%) and their job was the housekeeper(52.5%). Thirdly, the female murderers almost killed their husbands(45%) and other victims was people who was familiar with the female murderer. Fourth, the offenders were afraid that the victims had the responsibility for murder(87.5%). Fifthly, according to above analysis, the character type female murderers was almost anger-in type. Finally, My analysis shows us that the anger characteristics between offenders and victims was very similar. With the above research results, I can understand the socio-psychological characteristics of the female murderer. However, this paper has some problems which is the limit of the sampling range and the generalization of research results. In addition, we need to study the comparison with male murderers and female murderers.

• Progress in Superconductivity and Cryogenics
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• 제20권1호
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• pp.15-18
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• 2018

In this paper, the magnetizing characteristics of the current limiting reactor (CLR) using $high-T_C$ superconducting (HTSC) module were analyzed. Since the saturation of iron core comprising the CLR using HTSC module deteriorates its current limiting operation, the design of the CLR using HTSC module considering the magnetizing characteristics is needed. For the analysis on the magnetizing characteristics, the flux linkage and the magnetizing current of this CLR using HTSC module were derived from its electrical equivalent circuit. Through the analysis on the linkage flux versus the magnetizing current, obtained from the short-circuit tests, the suppressing effect of the iron core's saturation was discussed.

• Journal of the Korean Society of Safety
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• 제16권1호
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• pp.25-30
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• 2001

This paper studies the effect of vibration characteristics of tube line conveying fluid with the power steering system of bus. We modelled fluid-filled tube line using I-DEAS software to investigate vibration characteristics of the power steering tube line. And we obtained the natural frequency of tube line through finite element analysis. Analytic solutions were compared with experimental solutions to verify finite element model. We tested the tube line to examine an effect of pressure pulse by vane pump and variation of geometry of tube. From both the experimental results and the modeling results for vibration characteristics of the tube line conveying fluid, we confirmed that vibration characteristics induced by pulse propagated along the power steering tube line and resonance occurred around the natural frequency with pulse excitation.