• Proceedings of the Korean Society of Toxicology Conference
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• 2002.05a
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• pp.97-97
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• 2002

A mouse ear swelling test (MEST) has been developed as an alternative to guinea pig models for contact sensitization potential. However, the MEST relies on a quantitative measurement of ear swelling as an endpoint by micrometer. In this study, we aimed to investigate the cell proliferation in ear and lymph node using Bromodeoxyuridine (BrdU) immunohistochemistry as a possible reliable marker for MEST.(omitted)

• Journal of Welding and Joining
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• v.19 no.6
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• pp.614-621
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• 2001

A study was carried out to determine the solidification cracking susceptibility of Ni-base superalloy as a function of Fe content in base metal. Three kinds of Ni-base superalloys with three different levels of Fe content were used. The solidification cracking susceptibility was evaluated by the Trans-Varestraint test at four different strain levels. Quantitative analysis of crack revealed that the solidification crack length and the temperature range in which hot cracking occurred in fusion zone (Brittle Temperature Range, BTR) decreased with a decrease in Fe content. Further, the thermo-calc data indicated that the solidification temperature range also decreased with decreasing Fe content. From these results, it was deduced that the improvement of the solidification cracking susceptibility with decreasing Fe content was attributed to the decrease of the solidification temperature range.

• Proceedings of the KSME Conference
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• 2000.04a
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• pp.326-332
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• 2000

It should be essentially considered as important points that design of case in electronic product which simultaneously satisfied with structural stability and molding form in respect to developmental period and economical aspect. Especially, a shape of air vents grille, which is made to emit heat happen to be in the internal of product, must satisfy durability and strength but We have no quantitative data because to be done by experience of designer. So, in this study, We will propose that structure of optimal and method of design in air vents grille, which to reduce a lot of loss of time and cost due to trial and error of design and to stabilize in the BALLISTIC Impact test as to estimate strength with external appearance of product, using linear analysis.

• Proceedings of the KSME Conference
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• 2003.11a
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• pp.646-651
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• 2003

Quantitative performance test on the conventional 2D-PIV and the hybrid angular 3D-PIV (Stereoscopic PIV) was carried out. LES Data sets on an impinging jet which are provided on the webpage(http://www.vsj.or.jp/piv) for the PIV Standard Project were used for the generation of virtual images. The generated virtual images were used for the 2D-PIV and 3D-PIV measurements. The measurement results showed that the results obtained by 2D-PIV on average values are closer to the LES data than those obtained by 3D-PIV, but the turbulent properties obtained by 2D-PIV are largely underestimated than those obtained by 3D-PIV.

• Journal of the Korea Computer Industry Society
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• v.9 no.5
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• pp.223-228
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• 2008

A case study to show MS Excel's convenient and powerful functions was conducted to test hypotheses with subway data. Quantitative variables were described using descriptive menu, and qualitative variables were described using histogram menu of a MS Excel software. Relationships were tested using regression menu, differences were tested using t-test menu, and factors were tested using variance-layout menu of a Excel software. Data input, management, and statistical analysis were done successfully with only a MS Excel software.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2013.04a
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• pp.623-625
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• 2013

Tire hydroplaning is one of the most important tire performances, especially for safety on wet road surface. And nowadays various methods such as FEM and FVM analysis are being applied to design and improve tire hydroplaning performance, along with on-vehicle test of tire hydroplaning. Conventional evaluation of tire hydroplaning has been done by comparing peak lateral acceleration and vehicle speed in time domain. But in this paper, frequency domain analysis of lateral acceleration when hydroplaning at high speed has been carried out to get the quantitative comparison between test tires. And it is concluded that the frequency spectrum analysis of lateral acceleration gives much better discrimination, as compared to the conventional time domain analysis of lateral acceleration and vehicle speed.

• Journal of The Korean Society of Integrative Medicine
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• v.4 no.4
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• pp.33-39
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• 2016

Purpose : The aim of this study was to investigate the effects of plastic ankle foot orthosis on adult post-stroke hemiplegic patients walking ability and balance. Method : The searched for the case controlled clinical trials about the effects of plastic ankle foot orthosis(pAFO) for walking ability and balance using quantitative gait analysis in adult post-stroke patients. Ten trials were selected from Riss4U databases published until June 2016 in Korea. The selected trials contained a control group with pre-test and post-test design, measured walking ability and balance as a dependent variable. Result : The selected ten trials involved a total of 180 patients. The walking speed, cadence, the portion of double limb supporting, stride length on affected side were improved by plastic ankle foot orthosis. Conclusion : The plastic ankle foot orthosis has some evidence to improve the walking ability and balance in post-stroke hemiplegic patients.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.18 no.1
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• pp.25-32
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• 2000

These days, the quantitative analysis of digital image by on-line image analysis system is being progressed actively, so the application of digital image is being groped in the safe test of construction. In this study, the synchronized 3D image acquisition and the system for processing that were established for analyzing the deflection of construction by using the acquired image from CCD camera. The reliability and the possibility of this established system are presented by deriving the accuracy of image analysis and the deflection of object through concrete loading test.

• Food Science of Animal Resources
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• v.18 no.3
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• pp.255-260
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• 1998

The aroma concentrates from mold fermented sausages were isolated by steam distillation and simultaneous steam-distillation-extraction(SDE). methods. Quantitative estimation of the aroma concentrates in mold fermented sausages was carried out by using GC-MC. Mold fermented sausages were manufactured into two types. The first was manufactured with starter culture containing Lactobacillus plantarum and Staphylococcus carnosus(LP). The second was manufactured with starter culture containing L. curvatus and S. carnosus(LC). The aroma concentrates containing hexanoic acid and 2-butyl-2-octenal were identified in mold fermented sausages immediately after manufacture. After 28 days, the volatile flavor components from LP and LC were determined to be 14 (trimethylsilylester of hexadecanoic acid and 2-methyl-3-octanol, etc.) and 16 substances(hexadecanoic acid and 1-hexadecanol, etc.), respectively. The distribution of aroma concentrates in LP and LC was different, but their panel test placed them in similarity.

• Journal of the Korea Institute of Building Construction
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• v.11 no.4
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• pp.387-395
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• 2011

In the construction of tall-building, concrete pumping influences the success of the project. In order to establish pumping technology for high speed construction of tall building, study for quantitative evaluation of flow characteristics and pumpability should be conducted. So in this study, the characteristics including the inner pipe pressure, rheological properties of concrete and mortar through the continuous pumping test were evaluated. Then we analyzed the relations between rheological properties and pumpability. In the result of test, there are high correlations between the rheological characteristics which represented by yield stress and plastic viscosity and pressure loss with pipe length. Also, we estimated pressure loss according to conditions of concrete mix and pumping through the evaluation of inner pipe friction.