• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.2 no.2 s.3
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• pp.23-29
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• 2003

This study is the empirical research about application and evaluation of AVI that is an essential technology for calculating and providing the travel time. Travel time calculation and provision is one of the technique for information collecting and providing in the ITS. Through the field test on a national highway, we proposed the travel time calculation technique from the data by non-contact vehicle detecting method and validated field application performance with field data. We proposed the technique of evaluating field application performance, then using this, analyzed recognition rate, detection rate and travel time with field data.

• The Korean Journal of Financial Management
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• v.20 no.2
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• pp.73-94
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• 2003

In general, the interest rate is forecasted by the parametric method which assumes the interest rate follows a certain distribution. However the method has a shortcoming that forecasting ability would decline when the interest rate does not follow the assumed distribution for the stochastic behavior of interest rate. Therefore, the nonparametric method which assumes no particular distribution is regarded as a superior one. This paper compares the interest rate forecasting ability between the two method for the Monetary Stabilization Bond (MSB) market in Korea. The daily and weekly data of the MSB are used during the period of August 9th 1999 to February 7th 2003. In the parametric method, the drift term of the interest rate process shows the linearity while the diffusion term presents non-linear decline. Meanwhile in the nonparametric method, both drift and diffusion terms show the radical change with nonlinearity. The parametric and nonparametric methods present a significant difference in the market price of interest rate risk. This means in forecasting the interest rate and the market price of interest rate risk, the nonparametric method is more appropriate than the parametric method.

• Korean Journal of Food Science and Technology
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• v.35 no.4
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• pp.617-622
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• 2003

Experimental designs were applied to optimize the mixture ratio for the extrudate made by soymilk residue and corn grits. Nine candidate points were examined for their significance on extrudate using the modified distance design. Bending force, expansion ratio, bulk density, water solubility index (WSI), water absorption index (WAI) and color $(L^*,\;a^*,\;b^*)$ were the significant factors improving the extruded cereal production, and these values were applied to the mathematical models. Results showed that bending force, expansion ratio WSI, WAI and color $(L^*,\;b^*)$ increased with increasing the corn grits, whereas bulk density tended to decrease. The statistical study showed that the fitted models were adequate to describe the contour plot and all responses. Optimum mixture ratio allowing to maximize the two responses (expansion ratio and $b^*$) and minimize the response (WAI) were examined with a numerical optimization methods. The numerical optimization method was obtained as 53.18% : 46.19% (corn grits : soymilk residue).

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2001.09a
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• pp.31-34
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• 2001

지하 LPG 저장기지의 수벽시설이 저장공동 주변 암반에 미치는 영향을 진단하기 위해서 수벽시설의 주입압력을 강하시키면서 간극수압계와 관측공에서의 지하수두 변화를 모니터링하였다. 수벽시설의 관측지점에 대한 효율성은 수치해석으로부터 수벽시설과 관측지점간 매질의 확산능을 구함으로써 분석하였다. 확산능 산출결과를 검증하기 위해서 수벽시설의 압력강하에 따른 관측지점에서의 수두강하비와 수두강하율을 구하여 확산능 결과와 비교하였다. 비교결과, 확산능은 수두강하비, 수두강하율과 일관된 변화를 보여주었으며 확산능의 값이 클수록 수벽공의 압력변화에 따른 관측지점에서의 반응성이 양호함을 나타내었다

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2003.10a
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• pp.311-314
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• 2003

This research recognized change of the specific yield(Sy) by groundwater level in small size tube well of the farm village area. The result research basin aquifer could quality that the specific yield according to geological quality of aquifer changes showed value of $0.0004{\sim}0.081$ extents according to groundwater level decline.

• Korean Journal of Clinical Pharmacy
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• v.21 no.3
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• pp.208-214
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• 2011

목적: 이 연구의 목적은 한국인 성인 환자를 대상으로 아미카신 1일 1회 요법을 시행하였을 때의 약동학적 파라미터를 평가하고, 신기능에 따른 아미카신의 약동학적 파라미터를 비교함으로써 최적의 개인화 약물요법을 설계할 수 있도록 하는 것이다. 방법: 그람 음성균 감염에 대해 1일 1회 요법으로 아미카신을 투여 받았던 353명의 한국 성인 환자를 대상으로 항정상태에서 아미카신의 농도를 2회(약물 투여 전 1시간 이내, 약물투여 종료 후 0.5~1시간 이내) 측정하였다. 각 환자의 약동학적 파라미터(분포용적, 청소율, 반감기) 및 혈중 최고 농도, 최저 농도는 환자의 나이, 체중, 신장, 성별, 혈중 크레아티닌 농도, 투여된 약물용량, 측정된 약물의 혈중농도, 감염의 종류 등을 감안하여 산출하였다. 크레아티닌 청소율에 따라 환자를 4군으로 분류하여 아미카신의 약동학적 파라미터를 비교분석하였다. 결과: 본 연구에서 아미카신 혈중 최저, 최고 농도의 평균 ${\pm}$ 표준편차는 각각 $1.14{\pm}1.95mg/L$, $26.35{\pm}9.28mg/L$이며, 청소율, 분포용적 및 반감기의 평균 ${\pm}$ 표준편차는 각각 $55.40{\pm}23.72mL/hr/kg$, $0.35{\pm}0.12L/kg$, 그리고 $5.22{\pm}3.34hrs$로 산출되었다. 크레아티닌 청소율에 따른 아미카신의 청소율, 분포용적 및 반감기의 유의한 차이가 관찰되었다. 종합적으로 아미카신의 혈중 최저 농도는 크레아티닌 청소율이 40 mL/min 미만인 경우 40 mL/min 이상인 경우에 비해 유의하게 증가하였다. 결론: 아미카신의 약동학적 파라미터들은 신기능에 따라 유의한 차이가 있으므로 최적의 치료효과를 위해서는 환자의 크레아티닌 청소율에 따른 개인화 약물요법이 필요하다.

• Magazine of the Korean Society of Agricultural Engineers
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• v.11 no.2
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• pp.1651-1660
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• 1969

The purpose of this study is to find out the reasonable amount of evapo-transpiration required for the paddy rice plant during the whole growing season. So. On the basis of the experimental data concerning the evapo-transpiration form 1966 to 1968, the author obtained the follow results. 1) The leaf area index in the densely planted plo is generally higher than that in the conventionally planted one during the first half of growing season So, the coefficient of transpiration in the former plot is somewaht higher than in the latter, and the coefficient of water surface evaporation under the plant cover has the inverse relation between both plots. 2) It is unreasonable that coefficient of evapo-transpiration is applied to the calculation of the evapo-transpiration requirements of each growing stage, because a degree of variation in meteorological factors and in the thickness of the plant growth is involved in it. 3) It is most reasonable that the rate of transpiration and of the water surface evapoation is applied to the calculation of the transpirated amount and evaporated one in each growing stage, because it shows almost constant value in spite of any meteorological conditions in so far as the variety of rice, planted density and control of applying fertilizer are sanme and the disease and blight are negligible. 4) The ratio of the amount of transpiration to the weight of the whole air dried yields has the tendency of decreasing as that of the yields increases having almost constant value despite the amount of pan evaporation; and the value is about 210 when the weight of root parts is included to that the yields. 5) Although the required amount of transpiration during the whole growing season can be calculated with the above ratio, Fig. 7 showing the relation between the amount of transpiration and the weight of the yields is more reasonable and will be convinient to find it. And the requirements of water surface evaporation during the same season can also be directly found witht theweight air dried straw refering to Fig. 8.

• Journal of the Korean Society of Food Science and Nutrition
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• v.25 no.6
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• pp.1037-1044
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• 1996

This study was conducted to investigate the prevalence of childhood obesity and to figure out the correlation between percentage of body fat and various criteria used for evaluating childhood obesity, and to suggest a new convenient criterion applicable to obesity assessment for large population. subject of 309(male: 153, female: 156) from Uisung elementary school in Kyungbuk, in the age range from 10 to 12 were recruited. The prevalence of obese was evaluated by the methods of Slaughter skinfold equations for children, BMI, and RI. fourteen(4.5%) by Slaughter eq, 39(12.6%) by BMI, 31 (10%) by RI were found to be obese. The results indicate that the evaluation of child obesity is influenced by the methods applied; that is, BMI and RI tend to overpredict the obese while percentage of body fat tend to underestimate. Percentage of body fat by Slaughter equations using triceps and calf skinfold is highly correlated with triceps plus subscapular skinfold thickness(male: r=0.91, female: r=0.88) and with Kim equations for Korean children(male: r=0.93, femlae: r=0.88). The results suggest that, if necessary, practitioners can adequately predict body composition without exposing the upper torso of females.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.6
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• pp.2285-2291
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• 2013

In this study, daily based groundwater recharge was estimated under unsteady state by using groundwater table fluctuation model developed by Kim et al. (2013). This technique analyzes groundwater variation characteristics by using reaction factor related with groundwater flow and specific yield related with recharge. For the application of this model, measured groundwater level at JD Yongdam 1 and JW Konghang for 5 years were used. This model can estimate daily based groundwater recharge and the computed groundwater levels showed good agreement with measured groundwater levels. At JD Yongdam 1 and JW Konghang, the estimated recharges (rates) were 520.4~904.0mm (32.7~61.8%) and 447.4~633.4mm (24.0~45.1%), respectively. The developed model can be suggested as an efficient and precise method to estimate daily based groundwater recharge by using groundwater level data.

• KOREAN POULTRY JOURNAL
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• v.20 no.12 s.230
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• pp.63-67
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• 1988

(1) 3$\~$9주령시의 증체중은 CP와 ME가 증가함에 따라서 증가하는 경향을 인정하였으나 7$\~$9주령시 CP 18$\%$구의 증체중은 타구와 비교하여 크게 떨어졌다. (2) 3$\~$9주령시 사료섭취는 CP와 ME가 증가함에 따라 감소하였다. (3) 사료요구율은 CP와 ME의 증가에 따라 낮아지는 경향을 보였으나 7$\~$9주령시에 있어서 18$\%$구의 증체량이 낮아짐에 따라 사료요구율도 나빴다. (4) 경제성에 대하여는 증체 1kg에 요하는 사료비를 산출한 바 16$\%$-3,050kcal구 다음이 16$\%$-3,250kcal구가 좋으나 복강내지방축적율과는 정의상관관계가 있음을 알 수 있다. 이상 산이현축산시험장 조조씨 외 3명의 논문을 소개한 것은 브로일러 산업에서 품질좋은 대형육계(2.5kg이상)을 생산함에 있어 사료비를 적게 들이고 보다 유리한 경영이 되게끔 하기 위한 의도에서 원고를 쓰게 되었다.