• 한국식품영양과학회지
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• 제26권3호
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• pp.521-527
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• 1997

This study was aimed to investigate the nutriational status of Korean female college students who are attending school at a longdistance. Physique calssification by anthropomethic indexes, Body mass index(BMI) & Brocas' index and the body fat distrubition were investigated. The energy balance was also examined comparing caloric intake with caloric expenditure. The result of this study are followings; (1) Average height and weight were 158±17.8 cm, 51.7±7.8 kg. This results were not quite different from '84 Korean Adult Standard of 159.5cm, 52.5kg. (2) By Broca's index, 25.89% of subjects was underweight 67.0% was normal weight and 7.06 was overweight. By BMI, 40% of subjects was underweight, 58.8% was normal weight and 1.2% was overweight. (3) According to % fat measured. By BIA, 7% in subjects was underweight, 64.2% was normal weight, 22% was overweight and 6.1% was obesity. This result differed from BMI's result. It may be measurement error due to the difficulty of removing metal sticking to underwear and tooth correction. (4) The intakes of the nutrients except protein, P, vitamin B₁ complexes, were lower than the intakes indicated by Korean Recommended Allowances. 95) Average caloric intake a day was 1545±394.4 kcal, which was much lower than the RDA. The caloric expenditure was much more than caloric intake, which showed negative energy balance in the subjects of this study.

• 복식
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• 제54권6호
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• pp.53-64
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• 2004

North Korea's traditional dress(chosun-ot) has developed as follows: right after the liberation(l945). North Korea tried to get rid of Japanese style and empty formalities and vanity, so chosun-ot became simple and practical. And from the Korean war to 1950's North Korea had tried to establish through a restoration of the war and chosun-ot is more easy and simple. For 1960's People became to be interested in their clothes owing to a stable socialistic economy and politics, and tried new style due to the influence of the Korea-Japanese. Since 1972 North Korea has claimed a dictational socialist organization, and constructed its own culture. Therefore North Korea emphasized its own clothing habit. and its garment style developed differently from South Korea. Since 1984 North Korea tried to change its policy dramatically. and chosun-ot has changed to a modern and various style. But on the other hand, traditional style of chosun-ot was more emphasized. North Korea especially tried to succeed its traditional style. it pursued only partial changes by sticking to its original style. And its color to bright and magnificent one with additional ornaments. Because it tried to change the style within the limits of its tradition, traditional dress has a quite fragmentary and flat appearance.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.560-562
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• 2002

The liquid crystal(LC) pixel capacitance Clc, which varies as a function of applied pixel voltage, is a main factor of pixel voltage errors on input gamma voltage, and therefore of the electro-optics(E-O) characteristics of LC pixel for a-Si TFT LCDs. The pixel voltage error(${\Delta}$Vp) for input gamma voltage was simulated for 14.1 inch diagonal XGA panel. An agreement between the experimental results and simulation was satisfactory for the gamma voltage compensation, ${\Delta}$Vp of the input gamma voltage. The proposed compensation method was successfully introduced to a 14.1 inch diagonal XGA panel, and a remarkable improvement of image sticking was achived.

• KIEAE Journal
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• 제17권3호
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• pp.107-112
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• 2017

Purpose: Both silica gel and activated carbon black particles were adopted for use as PCM absorbed porous media applicable as construction materials. To investigate usable methods for absorbing PCM into the media, they were soaked into PCM and also tested for enhancement of PCM absorption into them. Method: To test PCM absorption into some porous media such as both ${\varphi}1{\sim}2mm$ and $10{\mu}m$ silica gels, and $50{\mu}m$ activated carbon black, $43^{\circ}C$ PCM was used as a laten heat material. The method, soaking into PCM was applied to this study, and the media were moderately rotated by centrifuge to have the extra PCM flow out. DSC analysis was conducted to investigate the melting and solidifying of the PCM absorbed into the porous media. Result: It was found that PCM was absorbed into the porous media by over 85 wt% of all particles. In addition, it was noted that the ultrasonic vibrator was accelerating the PCM absorption into the particles to three times higher speed than simple soaking. Centrifuge was adopted to remove extra PCM sticking on the particle surfaces and extra PCM was moderately removed from the surfaces of the particles. DSC analysis indicated that the latent heat of the absorbed PCM particles was 160 J/g, and the melting temperature was approximately $40^{\circ}C{\sim}50^{\circ}C$.

• 식물병연구
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• 제15권3호
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• pp.262-265
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• 2009

PDA 배지상에서 작은뿌리파리 유충과 성충은 토양 전염성 병원균인 Fusarium oxysporum을 전반하였으며, 성충에 비해 유충의 전반이 높았다. 작은뿌리파리 유충은 F. oxysporum 균을 섭식하여 전반하였으며, 성충은 몸체에 균을 묻혀 전반하였다. 형광발현 형질전환 F. oxysporum 균을 제작하여 작은뿌리파리 유충에 먹인 결과 균은 소화관을 따라 분포하였다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2011년도 추계학술대회 논문집
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• pp.59-63
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• 2011

Friction damping is one of the attractive vibration control technique for space structures due to its simplicity and large damping capacity. However, passive approaches for friction damping have a limitation because energy is no longer dissipated at sticking. In order to overcome this problem, semi-active control methods to adjust normal force at frictional interface have been studied in previous researches. In this paper, two semi-active friction control method is compared by simulating SDOF model of truss structure. The first approach is on-off control to maximize rate of energy dissipation, whereas the second concept is variable friction force control to minimize amplitude ratio for each half period. The maximum friction force, control variable in on-off control method, is obtained to minimize 1% settling time, and is different from optimal friction force in passive control. Simulation results show that performance of on-off control is better than that of variable friction force control in terms of settling time and controlled friction force.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2005년도 추계학술대회 논문집
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• pp.63-66
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• 2005

Nanoimprint lithography (NIL) process at room temperature has been newly proposed in recent years to overcome the shape accuracy and sticking problem induced in a conventional NIL process. Success of the room temperature NIL relies on the accurate understand of the mechanical behavior of the polymer. Since a conventional NIL process has to heat a polymer above the glass transition temperature to deform the physical shape of the polymer with a mold pattern, viscoelastic property of polymer have major effect on the NIL process. However, rate dependent behavior of polymer is important in the room temperature NIL process because a mold with engraved patterns is rapidly pressed onto a substrate coated with the polymer by the hydraulic equipment. In this paper, finite element analysis of the room temperature NIL process is performed with considering the strain rate dependent behavior of the polymer. The analyses with the variation of imprinting speed and imprinting pattern are carried out in order to investigate the effect of such process parameters on the room temperature NIL process. The analyses results show that the deformed shape and imprint force is quite different with the variation of punch speed because the dynamic behavior of the polymer is considered with the rate dependent plasticity model. The results provide a guideline for the determination of process conditions in the room temperature NIL process.

• 오토저널
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• 제10권5호
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• pp.61-68
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• 1988

This paper reports the basic performance of a naturally aspirated DI diesel engine which is used widely in industry and agriculture when vegetable oils are used as fuel substitutes. In this paper, the properties of vegetable oils as diesel fuel were investigated and the load-performance of diesel engine when vegetable oils were used, as tested compared against diesel fuel. The general objective of this investigation is to realize an efficient, clean, and low carbon deposit combustion of the vegetable oils in diesel engines, showing their feasibility as diesel fuel substitutes. The results of this experiment were as follows; (1) Compared with diesel fuel, the droplet size of vegetable oil is very large. (2) Compared with diesel fuel, rapeseed oil, palm oil, and their blend fuels offered lower smoke, lower NOx, ower engine noise, and high thermal efficiency in a D.I. diesel engine However, there were carbon deposit and piston ring sticking problems with long-term operation. (3) For ethanol-rapeseed oil blends, a 10-20% of ethanol content is recommended to enable lower BSHC and less smoke without a remarkable increase in engine noise compared with pure rapeseed oil. (4) A 10% oxygen content in the vegetable oils is contributed to reduced smoke emission.

• 한국식생활문화학회지
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• 제30권4호
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• pp.457-462
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• 2015

The goal of this study is to show that the investigate is preference of beetroot cookie is preferred by consumers and can help to replace calcium, which is depleted because of the stress. As the amount of beetroot powder is increased, pH value, spread factors, loss and leaving rates, and texture properties of cookies were decreased. As a result of the measuring of colorimetric characteristics, the values of "L", "a", "b" were all decreased as the amount of beetroot powder was increased. The cookies containing 30% of beetroot powder was estimated as the most suitable to eat because of the flavor, color, and taste of the beetroot. But cookies having 20% of beetroot powder were estimated as the best to eat because of the texture, sticking power, hardness, and general preference. According to the results, the cookies containing 20% of beetroot powder were selected as the most suitable cookies to eat.

• 한국식품위생안전성학회지
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• 제11권1호
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• pp.11-16
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• 1996

The removal of residual captan in carrot and by storage temperatures and the addition of condiments was investigates. The quantities of residual captan after sticking and drying of captan in carrot and kale wer 0.958 and 23.12 ppm, respectively. During storage of 20days at 15,3 and -17$^{\circ}C$, the levels of the residual captan in carrot decreased to 0.008 (removal rate: 99.2%) and 15.06 ppm (42.3%), respectively. The higher removal rate of residual captan was oberved at the higher storage temperatures, When the condiments of soy sauce, green onion, garlic and vinegar added to the carrot which contaminated with the captan and then stored at 15$^{\circ}C$ for 24hrs, the residual levels of captan decreased to 0.207 (removal rate: 78.4%), 0.196 (79.5$^{\circ}C$), 0.164 (82.8$^{\circ}C$) and 0.209 ppm (78.2%), respectively, showing the garlic was the most effective. However, the residual levels in tale were 2.27 (91.3%), 12.70 (51.4%), 16.42 (37.1%) and 13.70 ppm (47.5%), respectively under the same condition, indication the soy sauce was the most effective. The removal rates of residual captan in carrot and kale were significantly higher with the addition of the condiments than those of the controls that without the condiments.