• Korean Journal of Veterinary Research
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• v.43 no.3
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• pp.333-338
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• 2003

Cytogenetic and hematological analysis was performed in bovine peripheral blood from the regions around Wolsong nuclear power plant and control area. The frequency of micronuclei (MN) in peripheral blood lymphocytes from cattle was used as a biomarker of radiobiological effects resulting from exposure to environmental radiation. An estimated dare of radiation was calculated by a best fitting linear-quadratic model based on the radiation-induced MN formation from the bovine lymphocytes exposed in vitro to radiation over the range from 0 Gy to 4 Gy. MN rates in lymphocytes of cattle from Wolsong nuclear power plant and control area were 9.87/1,000 and 9.60/1,000, respectively. There were no significant differences in MN frequencies and hematological values in cattle between Wolsong and control area. The study indicates that the MN assay is a rapid, sensitive and accurate method that can be used to monitor a large population exposed to radiation.

• Near Infrared Analysis
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• v.1 no.1
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• pp.1-7
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• 2000

A convenient algorithm for optimizing wavelength selection in multiple linear regression (MLR) has been developed. MOP (MLP Optimization Program) has been developed to test all possible MLR calibration models in a given spectral range and finally find an optimal MLR model with external validation capability. MOP generates all calibration models from all possible combinations of wavelength, and simultaneously calculates SEC (Standard Error of Calibration) and SEV (Standard Error of Validation) by predicting samples in a validation data set. Finally, with determined SEC and SEV, it calculates another parameter called SAD (Sum of SEC, SEV, and Absolute Difference between SEC and SEV: sum(SEC+SEV+Abs(SEC-SEV)). SAD is an useful parameter to find an optimal calibration model without over-fitting by simultaneously evaluating SEC, SEV, and difference of error between calibration and validation. The calibration model corresponding to the smallest SAD value is chosen as an optimum because the errors in both calibration and validation are minimal as well as similar in scale. To evaluate the capability of MOP, the determination of benzene content in unleaded gasoline has been examined. MOP successfully found the optimal calibration model and showed the better calibration and independent prediction performance compared to conventional MLR calibration.

• Journal of the Korea Fashion and Costume Design Association
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• v.7 no.2
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• pp.1-10
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• 2005

This study intends to examine extensively on the current situation where the full capacity of 3D CG is not being highlighted because of the lack of the information and the awareness and to look at how the virtual reality technology is being applied ranging from the design of the clothes to the marketing. A set of processes ranging from the development of the clothing design to the marketing will be performed on the web. Designers will design with 3D CG and make the patterns and will hand this over to the producer together with the virtual swatch. But there are important problems to work out. First, it is the problem of the virtual fitting room. Second, it is the absence of the 3D CG, which is easy and convenient for the clothing design. Third, it is to perfect the visual reconstruction. Fourth, it is the security of the distribution system. Fifth, it also calls for the strengthened internet network that can smooth the flow of the tremendous data. Consumer will be able to produce according to their needs and will become designer and producer at the same time, resulting in the achievement of the consumer-oriented marketing in real sense.

• Journal of Institute of Control, Robotics and Systems
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• v.6 no.8
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• pp.727-731
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• 2000

This paper presents a new practical autopilot design approach to acceleration control for tail-controlled STT(Skid-to-Turn) missiles. The approach is novel in that the proposed parametric affine missile model adopts acceleration as th controlled output and considers the couplings between the forces as well as the moments and control fin deflections. The aerodynamic coefficients in the proposed model are expressed in a closed form with fittable parameters over the whole operating range. The parameters are fitted from aerodynamic coefficient look-up tables by the function approximation technique which is based on the combination of local parametric models through curve fitting using the corresponding influence functions. In this paper in order to employ the results of parametric affine modeling in the autopilot controller design we derived a parametric affine missile model and designed a feedback linearizing controller for the obtained model. Stability analysis for the overall closed loop sys-tem is provided considering the uncertainties arising from approximation errors. the validity of the proposed modeling and control approach is demonstrated through simulations for an STT missile.

• Archives of Plastic Surgery
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• v.45 no.5
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• pp.484-489
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• 2018

Large and ptotic breast reconstruction in patients who are not candidates for a transverse rectus abdominalis myocutaneous flap and revision surgery for the contralateral breast remains challenging. We developed a novel breast reconstruction technique using a latissimus dorsi myocutaneous (LD m-c) flap set at the posterior aspect of the reconstructed breast, combined with an anatomical silicone breast implant (SBI), following tissue expander surgery. We performed the proposed technique in four patients, in whom the weight of the resected tissue during mastectomy was >500 g and the depth of the inframammary fold (IMF) was >3 cm. After over-expansion of the lower portion of the skin envelope by a tissue expander, the LD m-c flap was transferred to cover the lower portion of the breast defect and to achieve a ptotic contour, with the skin paddle set at the posterior aspect of the reconstructed breast. An SBI was then placed in the rest of the breast defect after setting the LD m-c flap. No major complications were observed during the follow-up period. The proposed technique resulted in symmetrical and aesthetically satisfactory breasts with deep IMFs, which allowed proper fitting of the brassiere, following large and ptotic breast reconstruction.

• Journal of the Korean Society of Costume
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• v.35
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• pp.167-180
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• 1997

The purpose of this study was to find out some of the problems consumers have with ready to wear garments sizing and clothing satisfaction the following women's garments; sweaters T-shirts blouses jackets pants skirts one-piece jumpers and burberry(coats). For this study questionnaires were administered to female students in community college. Employing a sample of 166 students data were analyzed by Frequencies X2-test t-test ANOVA Factor Analysis and Regression. Major results of this study were summerized as follows: 1) Purchasing clothing subjects considered mainly bust circumference for T-shirts and blouse shoulder width for jackets and jumpers hip circumference for pants and skirts and length for sweaters(knit) one-piece and burberry(coats) as a reference of fitting sites. 2) In relation with dissatisfaction with apparel fit hip circumference of pants including jeans was found as the most unsatisfactory site. Besides subjects were dissatisfied with skirts sweaters one-piece jackets blouses burberry(coats) jumpers T-shirts in order. In relateion with height and body type were most dissatisfied with pants(jeans) 3) Factors related to clothing deprivation of ready-to-wear garment were identified as aethetics elements practical elements economic elements and fittness elements. Fittness elements were most dissatisfied factors with all items of garments except for skirts.

• Journal of the Korean Society of Costume
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• v.58 no.4
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• pp.99-112
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• 2008

The aim of the study was to look into the construction methods of historical corsetry and compare them with the construction methods of corsetry today. Through a comparative study, it was concluded that the design, material, sewing and functions of corsetry of a certain period are sum of the clothing techniques and fashion of the time. Corset was first appeared at the end of the 16th century. It has been through many changes in terms of items, materials, patterns, sewing methods in order to make right silhouettes of the time. Now corsetry has been developed into various items such as waist nipper, all-in-one, nipper bra, and girdle. All these items have a common purpose, that is to improve the body shape. The corsetry of the past was made of non stretchable materials, so they used to restrict body movements, and required individual fitting several times. Due to the development of thin durable stretchable fabrics, functional bones, and advanced sewing machines, construction methods of seam, hem and opening are simplified compare to their predecessors. Consequently corsetry became less weighted, easy to wear, easy to wash and easy to mass produce. Yet they have consistency in sewing techniques such as using bones or wires to support bodice shape, using durable twill fabrics over plain for attractive body shapes.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.27 no.2
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• pp.139-147
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• 2017

Acoustic performance of splitter silencers was investigated by using 3-dimensional commercial software and experiments. Flow resistivity of sound absorbing material was indirectly estimated by using an impedance tube setup and a curve fitting method. In addition the acoustic impedance of perforated plate was determined by an empirical formulation. Such properties have been used as input parameters in the commercial software. The prediction for a splitter silencer with 1000 mm length was compared with the experimental result. The numerical method is then applied to identify the effects of number of splitters, length of splitters, absorptive material density, and porosity of a perforated plate on the performance of the splitter silencers. As the number and length of splitter increases, the acoustic performance significantly increases. Although the increase of density of absorptive material also increase the acoustic performance, a change in the density over a certain level hardly affect it. The increase of porosity will enhance the performance especially at higher frequencies.

• Journal of the Korean Society of Clothing and Textiles
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• v.44 no.3
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• pp.464-484
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• 2020

This study examined obese women with a BMI index over than 25 kg/㎡ in their 20s and 30s regarding the right fit for wearing a blouse. In comparison with three types of existing educational patterns, the first educational pattern experimental clothing was produced in dimensions of three study participants selected by the existing pattern to evaluate the fit suitability conducted for groups of study participants and expert groups. Experimental patterns were designed based on educational pattern C, which was the best fit as a result of the fitting evaluation. The main modification items include front bust circumference, hip circumference, back interscye, scye depth, shoulder length, blouse length, bottom line shape, upper arm circumference, wrist circumference, sleeve length and collar size. The design preferences for obese women were reflected in pattern modification; in addition, the final experimental pattern was designed by adding or subtracting margins and dimensions based on the results of the visual matching assessment by study subjects and expert groups.

• Journal of Fashion Business
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• v.17 no.3
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• pp.85-98
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• 2013

Fabric industry has been developing enough to introduce diverse stretch materials to apparel market, so that tightly fitting leggings designs are taking over not only sports wear but also women's clothing. This study is aimed at developing prototype designs for leggings pants using stretch material that are appropriate for the lower part of body being functional, comfortable, and beautiful. As well, the study is intended to be of a reference in manufacturing such products. Some of the most popular leggings on the market in their kinds and materials were primarily selected to be tested in two ways: wear test and appearance test. Again, the test pants went through the same kinds of two tests, which turned out two designs. Finally, the test pants were treated to yield the most desirable prototype design. In conducting all these tests, some major defects causing discomfort and shortcomings of the leggings pants on the market were exposed and through the wear tests, the drawbacks were seen to be complemented in a big way. Thus, it is hopefully expected that this study will serve as a good reference for developing stretch pants.