• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.3
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• pp.606-616
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• 2001

The purpose of this study was to investigate the preferred clothing images and clothing behaviors on personality types. Personality types were applied using Myers-Briggs Type Indicator(MBTI). Clothing image preferences were measured using 28 adjectives of 5-point scales. The data were collected from 101 female using questionnaire to prefer on clothing images, consumer information sources and retail store types. The data analysed with crosstab analysis, t-test, MDS. Extroversion and Introversion had significant difference in casual, sporty, fresh, youthful, western, and simple more than introversion types. Sensing and intuition had significant difference in feminine and strong image. Sensing types were significantly evaluated feminine style more than intuition types. Thinking types were significantly evaluated simple image more than feeling types. Judging and perceiving had significant difference in graceful, lofty, and strong image. Judging types were significantly evaluated graceful and lofty style more than perceiving types.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2007.11a
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• pp.153-158
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• 2007

Sound insulation performance of the flush door in the apartment unit was recently decreased due to the door for the purpose of barrier free. To evaluate sound insulation, the test for 13 kinds of flush doors was performed as aperture conditions under the flush door. and the measured value was compared with the predicted values of theoretical sound transmission. The results were summarized follow; First, in case of doors with aperture by barrier free, the single number quantities ($D_{pw}$) were evaluated $21{\sim}23dB$. Whereas, in case of existing door with frame, $D_{pw}$ was evaluated $28{\sim}31dB$. And in case of sealed doors, $D_{pw}$ was evaluated $31{\sim}34dB$. Second, the measured $D_{pw}$ was good agreement with the predicted $D_{pw}$ in condition of small aperture.

• Journal of the Korean Institute of Navigation
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• v.21 no.2
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• pp.19-40
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• 1997

When designing new marine traffic routes, it is desirable that the congestion due to traffic volume is evaluated by theoretical traffic capacity or by traffic simulation. Most of these techniques are applied to single server which is not considered channel width. Over-taking or paralle sailing of two or more vessels is allowalbe in Dover, Uraga, Gaduk-sudo, etc under their traffic capacity. In this paper, the Bumper Model is introduced to multiple severs in narrow channel and applied to Uraga Channel in Japan. The minimum width of Uraga Channel is 1, 400 m and its design traffic capacity is evaluated 19.26 ~ 19.52% of the basic traffic capacity. The traffic capacity on Gaduk Channel according to Busan New Port Development in 2011 will be estimated 3.59 % of maximum density and equal to 18.6% of that on Uraga Channel in 1992. The channel width Gaduk-sudo is designed 1, 600~2, 460 m and evaluated safe enough.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.6
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• pp.1174-1179
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• 2009

In this paper we develop the characteristic of density on non-uniform plasma in different layer of the semiconductor with optically controlled microwave pulses. The transient response of the microwave pulses in different plasma layer has been evaluated by calculating the variation of the reflection function of dielectric microstrip lines. The lines has used under open-ended termination containing optically induced plasma region, which has illuminated a laser source. The characteristics impedances resulting from the presence of plasma are evaluated by the transmission line model. The analyzes the variation of transient response in a 0.01cm layer near the surface for frequency range from 1GHz to 128GHz. The diffusion length LD is larger than compared to the absorption depth $l/_{\alpha}l$. The variation of characteristic response in plasma layer with microwave pulses which has in deferentially localized has been evaluated analytically.

• Journal of the Korean Society of Safety
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• v.27 no.5
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• pp.229-234
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• 2012

Operator's action time is evaluated from MAAP4 analysis used in conventional probabilistic safety assessment(PSA) of a nuclear power plant. MAAP4 code which was developed for severe accident analysis is too conservative to perform a realistic PSA. A best-estimate code such as RELAP5/MOD3, MARS has been used to reduce the conservatism of thermal hydraulic analysis. In this study, operator's action time of core cooling recovery operation is evaluated by using the MARS code, which its Fussell-Vessely(F-V) value was evaluated as highly important in a small break loss of coolant(SBLOCA) event and loss of component cooling water(LOCCW) event in previous PSA. The main conclusions were elicited : (1) MARS analysis provides larger time window for operator's action time than MAAP4 analysis and gives the more realistic time window in PSA (2) Sufficient operator's action time can reduce human error probability and core damage frequency in PSA.

• Structural Engineering and Mechanics
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• v.19 no.1
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• pp.73-96
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• 2005

For the spatially coupled free vibration analysis of shear deformable thin-walled non-symmetric curved beam subjected to initial axial force, an exact dynamic element stiffness matrix of curved beam is evaluated. Firstly equations of motion and force-deformation relations are rigorously derived from the total potential energy for a curved beam element. Next a system of linear algebraic equations are constructed by introducing 14 displacement parameters and transforming the second order simultaneous differential equations into the first order simultaneous differential equations. And then explicit expressions for displacement parameters are numerically evaluated via eigensolutions and the exact $14{\times}14$ dynamic element stiffness matrix is determined using force-deformation relations. To demonstrate the accuracy and the reliability of this study, the spatially coupled natural frequencies of shear deformable thin-walled non-symmetric curved beams subjected to initial axial forces are evaluated and compared with analytical and FE solutions using isoparametric and Hermitian curved beam elements and results by ABAQUS's shell elements.

• Journal of Korea Multimedia Society
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• v.20 no.6
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• pp.935-949
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• 2017

The purpose of this study was to analyze the characteristics of virtual manipulatives apps that can be used to teach students struggling to learn mathematics. To achieve this goal, ten general characteristics of 23 virtual manipulatives apps were evaluated. The instructional, interface, and interactive design features of apps were also evaluated on five-point scale ratings of 18 items. In addition, SPSS frequency analysis and the correlation between each feature was analyzed. Frequently presented instructional contents among 23 virtual manipulatives apps were geometry, arithmetic operation, number concept and measurement. The frequently presented level of instructional contents was lower grade elementary school and kindergarten age. The frequently presented instructional type was the simulation. Regarding the design features, instructional design was rated as the highest (mean = 3.7); interactive design (mean = 3.6) and interface design (mean = 3.3) were also rated higher than neural. In addition, as the learning strategy was appropriately presented, it was evaluated that there was less screen linkage and content error.

• Proceedings of the Korea Concrete Institute Conference
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• 1999.04a
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• pp.387-392
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• 1999

The bond performance of prestressing strands is still not well understood and is still in controversy on the validity of the test results up to today, although it is a basic information to desing the prestressed pretensioned concrete beams. Different transfer length has been found for a product of the same company, but of the different production methods and factories in the United States. It is necessary to determine optimum transfer bond length of the domestic stands because the ultimate flexural and shear capacity in a section of prestressed concrete beams are evaluated under the assumption that the anchorage bond failure shall not happen. The transfer lenght of low-relaxation, Gr 270, and 1/2" seven-wire prestressing strands from four domestic companies will be evaluated by the concrete strain method. The recent concept of the 95% Maximum Average Strain Method suggested by Russel et al. will be considered to obtain the transfer length of domestic strands. It will be also evaluated if the domestic strands are conform to ACI 318-95.8-95.

• Journal of the Korean Institute of Telematics and Electronics S
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• v.34S no.11
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• pp.138-147
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• 1997

The ultrasonic images are corrupted by the granular pattern noise - a speckle noise. The speckle exist in the type of coherent imaging systems, and the speckle is the signal independent and multiplicative noise. In this paepr, we derive two filters using the gradient and symmetry. One is a noise suppression filter which removes noise while preserves the edges. It is named the ASRF-GS (Adaptive Speckle Removal Filer - Gradient and Symmetry). And the other is a edge detection filter which obtains the thin edge map, called the EDUGS(Edge Detection Using Gradient and Symmetry). The performance of the proposed noise suppression filter is evaluated by the IMPV(SNR improvement) and the Speckle Index(SI), and the perforamnce of the edge detection is evaluated by the edge detection error rate. According to the evaluated method, The SI reduced about 0.035, The IMPV improved about 1.265(dB), and the edge detection error rate is about 17.5%.

• International Journal of Costume and Fashion
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• v.4 no.2
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• pp.56-65
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• 2004

The purpose of this study was to investigate the effect of hairstyle, hair length, and hair color on women's professional image. The quasi-experimental method by a $2{\times}3{\times}3\;(hairstyle\;{\times}\;hair length\;{\times}\;hair color)$ factorial design was used. Subjects were 343 women in Seoul, Korea. The bright brown hair was perceived to be less professional than the black and the dark brown. The straight hair was evaluated to be more professional than the wavy hair in the short and the medium length hair, whereas the wavy conveyed a higher professionalism than the straight style in long hair. The shorter the hair was, the more professional the image was. Among 18 stimuli, the short straight hair in black was evaluated to have the highest in professional image, and the long straight hair in bright brown was the lowest. Perceivers in their 40's and 50's evaluated the bright brown hair to be more professional than those in their 10's to 30's did. The present findings provide that hairstyle, hair length, and hair color are significant cues when perceiving women's professional image.