• Structural Engineering and Mechanics
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• v.65 no.5
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• pp.505-511
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• 2018

Recently, a new foundation model called "Dynamic foundation model" was proposed for the dynamic analysis of structures on the foundation. This model includes a linear elastic spring, shear layer, viscous damping and the special effects of mass density parameter of foundation during vibration. However, the relationship of foundation property parameters with the experimental parameter of the influence of foundation mass also has not been established in previous research. Hence, the purpose of the paper presents a simple experimental model in order to establish relationships between foundation properties such as stiffness, depth of foundation and experimental parameter of the influence of foundation mass. The simple experimental model is described by a steel plate connected with solid rubber layer as a single degree of freedom system including an elastic spring connected with lumped mass. Based on natural circular frequencies of the experimental models determined from FFT analysis plots of the time history of acceleration data, the experimental parameter of the influence of foundation mass is obtained and the above relationships are also discussed.

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 2005.03a
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• pp.292-299
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• 2005

This paper presents evaluation of seismic design code for AASHTO, Eurocode 8, NZS 3101, and ATC-32 and influence of parameter such as confinement steel ratio, axial force ratio, aspect ratio and longitudinal steel ratio. These seismic design code prescribe confinement steel ratio for appropriate seismic performance which is considered various design parameter. But there is doubt that these parameters are considered rationally in seismic design code. The object of this research is rational evaluation of seismic performance by analysis of existing related experimental research. According to this research, most influence parameter of seismic performance is axial force ratio.

• Communications for Statistical Applications and Methods
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• v.2 no.2
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• pp.266-276
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• 1995

We have considered the study of local influence for smoothing parameter estimates in nonparametric regression model. Practically, generalized cross validation(GCV) does not work well in the presence of data perturbation. Thus we have proposed local influence measures for GCV estimates and examined effects of diagnostic by above measures.

• Journal of the Korean Data and Information Science Society
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• v.6 no.1
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• pp.63-71
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• 1995

We have consider the study of local influence for smoothing parameter estimates in spline regression model with heteroscedasticity. Practically, generalized cross-validation does not work well in the presence of heteroscedasticity. Thus we have proposed the local influence measure for generalized cross-validation estimates when errors are heteroscedastic. And we have examined effects of diagnostic by above measures through Hyperinflation data.

• Journal of Korean Association for Spatial Structures
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• v.7 no.4
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• pp.55-61
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• 2007

Recently, with the development of computer, FEM has became the most frequently used numerical analysis method. FEM shows great ability in structures analysis, however, Galerkin's Method is more useful in grasping influence or the tendency of parameter which forms the structure. This paper perform the eigenvalue analysis using Galerkin's Method which is advantageous in grasping the influence and the tendency of parameter which forms the structure and study on the influence of parameter that forms arch on natural frequency response.

• Fashion & Textile Research Journal
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• v.9 no.5
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• pp.553-562
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• 2007

This study intends to examine the influencing factors in conformity and individuality of make up. For the study, a questionnaire survey was conducted of 436 women in between their twenties to fifties residing in the Kyeongnam region. Obtained data were analyzed pearson's correlation coefficient and multiple regression analysis. The result is summarized as follows.; The influence on conformity and individuality of make up can be described into 4 factors that are included in the decision making process of conformity and individuality, in other words, the demographical characteristic, the body cathexis, the need and the clothing value. The demographic characteristics, the marriage status and the education had a direct influence on conformity, however the body cathexis did not have a direct influence on any subordinate factors of conformity and individuality, but had indirect influence having the need as a parameter or had no influence having the clothing value as a parameter.

• Elastomers and Composites
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• v.55 no.3
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• pp.229-234
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• 2020

Automobile wiper blades are generally treated with chlorine to lower their friction coefficient with the windshield surface. This treatment could affect the crosslink density measurement of rubber vulcanizates, a material used in windshield wipers, which would consequently alter its chemical and physical properties. Therefore, this study evaluated the influence of chlorination on crosslink density measurements of natural rubber (NR) vulcanizates using a vehicle wiper blade. A method for determining the degree of chlorination was developed where the interaction parameter between the rubber and the swelling solvent was corrected. A decrease in the rubber sample swelling ratio was observed upon chlorination, and the chlorination penetrated less than 1% of the sample thickness. The chlorinated NR was assumed to be chloroprene rubber (CR), which was used to correct the interaction parameter. The results showed the CR contributed approximately 7% to the parameter.

• Journal of Korean Tunnelling and Underground Space Association
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• v.19 no.5
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• pp.799-812
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• 2017

Backfill grouting and realistic convergence distribution were not properly considered in previous studies on 2D numerical analysis of a shield TBM tunnel. In this study, a modeling method was suggested to cope with this problem by considering a realistic convergence distribution and proper properties of backfill grouting. To this end, the influence of gap parameter and depth of rock cover on volume loss and composed of ground volume loss around tunnel excavation and surface volume loss were analyzed with a single layer of weathered soil. As a result, most of surface settlements were occurred immediately after excavation. Additional, as depth of rock cover and gap parameter increased, the influence range of surface settlement curves obtained from 2D numerical analyses became broader than a suggested theoretical equation. Therefore, it is inferred that gap parameter should be applied based on load distribution ratio and the property of backfill grouting properly considered for the estimation of the precise behavior of a shield TBM tunnel in 2D numerical analysis.

• Journal of the Korean Statistical Society
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• v.31 no.4
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• pp.447-458
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• 2002

The influence of observations in the equicorrelation model is investigated using the local influence approach when all parameters or subsets of parameters are of interest. When a parameter of interest is scalar, an analytical form of the local influence measure can be found. We will derive a measure for identifying observations that have a large influence on the test of fitting the equicorrelation model. An example is given for illustration.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.5
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• pp.717-728
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• 2008

The purpose of this study to examine the relevant factors in tool and fashion of make up. For the study, a questionnaire survey was conducted of 436 women in between their twenties to fifties residing in the Kyeongnam region. Obtained data were analyzed pearson's correlation coefficient and multiple regression analysis. The results of this study were as follows.; The influence on tool and fashion of make up can be described into 4 factors that are included in the decision making process of tool and fashion, in other words, the demographical characteristic, the body cathexis, the need and the clothing value. Among these factors, the beauty need and the political value were proved to be more important. The demographic characteristics, the media contact had a direct influence on tool, and the occupation status had a direct influence on fashion. The body cathexis did not have a direct influence on any subordinate factors of tool and fashion, but had indirect influence having the need as a parameter or had no influence having the clothing value as a parameter.