Complex法에 의한 配水管網의 最適管徑 決定에 관한 硏究

安松燁,金洙源,蘇在喆 圓光大學校 1986 論文集 Vol.20 No.2

Box-complex 알고리즘을 적용하여 배수관망의 관 포설경비를 목적함수로, 유속과 관경을 제약조건으로 고려하여 관경을 최적화 하였으며, 본 연구에 적용된 알고리즘의 적용가능성, 안정성 및 효율성등을 분석하여 다음과 같은 결과를 얻었다. 1. Box-Complex 알고리즘은 배수관망의 설계에 매우 적합한 최적화 기법이다. 2. 지반고가 일정한 배수관망의 관경을 최적화하여 최적관경을 얻었으므로 지반고가 일정하지 않은 배수관망이나 대형의 관망 최적화에도 용이하게 적용할 수 있을 것이다. 3. 도송배수관로와 배수관망을 연결하여 최적관경을 구하면 배수관망 자체만의 최적화에서 구한 관경보다 경제적인 관경을 얻을 수 있다고 사료된다. 4. 본 연구에서 적용한 알고리즘은 초기치를 달리하여도 목적함수값이 변하지 않고 짧은 시간내에 일정한 값에 수렴하므로 적용성이 있고 효율적이며 안정성이 있는 알고리즘으로 사료된다. This study deals with the optimization of pipe diameter applying the Box-Complex algorithm and considering the velocity of flow and pipe diameter as constraints with the pipe paving cost of water pipe networks as their objective function. Then this study obtains the results as follows, analyzing the applicational possibility, stability and efficiency of algorithm which are applied to this study. 1. A Box-Complex algorithm is a very suitable optimization technique for the optimal design of the water pipe networks. 2. The optimal pipe diameter will be applied easily for the optimization of the large scale water pipe networks or the water pipe networks that the ground height inclines because the optimal pipe diameter is attained through the optimization of pipe diameter of water pipe networks that the ground height is horizontal. 3. If the optimal pipe diameter is attained through the linking of a water pipe channel with pipe networks, then it will be more economical pipe diameter than the one which is attained from the optimization of pipe networks itself. 4. The algorithm applied to this study is applicable, efficient and stable algorithm because it converges to a constant value within a shore time and does not change its objective function value through the initial value of the design valuables is different.

무산소-호기 유동상의 질소제거모델 개발

안송엽,김황홍,소재철,권희태 圓光大學校 環境建設硏究所 1999 環境建設論文集 Vol.8 No.-

This paper aims to get rid of BOD and nitrogen in wastewater as the anoxic-aerobic fluidized bed. The process for the removal of nitrogen consists of nitrification and denitrification in two reactors. The estimated formula for Anoxic are Biomass concentration = -2079.898V^2 - 202.2029(H/A) + 1123, BOD removal = -0.00613HRT^2 + 0.4014HRT + 46.993 and NO_3-N removal = -0.0029HRT^2 + 0.1872HRT + 77.45. This paper has increased the removal efficiency of BOD and nitrogen and recurs to denitrification nitrogen treated water, uses to the organic matter among the first-order treatment water, also nitrification case is developed to anoxic-aerobic fluidized bed recurrent method, that is two cases method using the isolated alkali in the denitrification. The experimental values are similar to values of estimated formula. Therefore, this result is able to adapt the other cases.

接觸安定法을 이용한 糞尿處理에 관한 硏究

全鍾煥,李柱錫,蘇在喆,安松燁 圓光大學校 1987 論文集 Vol.21 No.2

本 硏究에서는 연구책임자의 學述的 硏究經驗을 토대로 하여 보다 나은 處理工程을 다음과 같이 개발하였다. 旣存의 糞尿處理場 1次處理工程인 好氣性消化槽를 接觸槽와 安定槽로 분리하고 2次沈澱池에서 배출되는 返送슬러지를 全部 安定槽로 流入시켜 安定化시킨후 接觸槽로 보내는 接觸安定法의 工程으로 改造하고 流入糞尿 1對 稀釋水8의 比率로 糞尿를 流入시키며 實驗考察한 결과 97%이상의 處理效率을 얻었고 惡臭가 거의 발생하지 않은 쾌적한 環境이 되었다. In this study, the researchers found the better treatment process of nightsoil treatment plant on the basis of the responsible researcher's academic experience. The first treatment process, that is, aerobic digester of the existing nightsoil treatment plant is separated into the contact tank and the stabilization tank. And all the return sludge which discharge from the final sedimentation tank is folloed in the stabilization tank and is kept the stabilization situation there Afterwards, it is sent to the contact tank. The researchers remodeled as these contact stabilization processes and put in the contact tank at rate of inflow nightsoil one to diluted water eight. The results of above practical experiences showed the effective treatment above 95 percents and the comfortable environment with few foul ordor.

무산소-호기 반응기의 유기물과 질소 제거모델 개발

안송엽,김환홍,소재철,권희태 원광대학교 2001 論文集 Vol.26 No.-

본 논문은 무산소-호기 유동상 반응기에서 폐수의 유기물과 질소제거에 관한 것을 나타내었으며, 이 공정은 두 개의 반응기 안에서 질산화와 탈질화로 얻어지는 제거율 결과를 모형화하여 검토하였다. 무산소조의 미생물 농도가 모형식으로 표현되면 -2079.898V2 - 202.2029(H/A) + 1123이고, BOD removal = -0.00613 HRT2 + 0.4014HRT + 46.993 and NO3-N removal = -0.0029 HRT2 + 0.1872 HRT + 77.45 로 각각 표현되어진다. 이러한 실험치는 모형치와 비슷한 값을 가진다고 할 수 있으며, 이 결과는 다른 방법에도 적용이 가능하다고 판단된다. This paper aims to get rid of BOD and nitrogen in wastewater as the anoxic-aerobic fluidized bed. The process for the removal of nitrogen consists of nitrification and denitrification in two reactors. The estimated formula for, Anoxic are Biomass concentration = -2079.898V2- 202.2029(H/A) + 1123, BOD removal = -0.00613 HRT2 + 0.4014HRT + 46.993 and NO3-N removal = -0.0029 HRT2 + 0.1872 HRT + 77.45. The experimental values are similar to values of estimated formula. Therefore, this result is able to adapt the other cases.

Electromyographic Analysis of Upper and Lower Limb Muscles during Gardening Tasks

박신애,이아영,김재정,이관석,소재무,손기철 한국원예학회 2014 원예과학기술지 Vol.32 No.5

Movements of the upper and lower limb muscles during five common gardening tasks were analyzed by usingelectromyography (EMG). Twenty adults aged in their twenties (mean age, 24.8 ± 2.4 years) were recruited. On two separateoccasions, subjects visited a garden plot to perform digging, raking, troweling, weeding, and hoeing; all tasks were performedthree times with 20 s intervals for each trial. To measure muscle activation during the five gardening tasks, surface EMG wasused. Bipolar surface EMG electrodes were attached to eight upper limb muscles (bilateral anterior deltoid, biceps brachialis,brachioradialis, and flexor carpi ulnaris) or eight lower limb muscles (bilateral vastus lateralis, vastus medialis, biceps femoris,and gastrocnemius) on both sides of the body, for a total of 16 muscles. During the five tasks, photographs were taken ofmovement phases using a digital video camera. The right flexor carpi ulnaris and brachioradialis showed higher activation thanthe other upper and lower limb muscles measured during the tasks. All 16 upper and lower limb muscles were actively usedonly during digging. According to movement analysis of each activity, digging was classified into four movement phases, whereasraking, troweling, weeding, and hoeing each were divided into three movement phases. In each activity, there were high-impactphases in terms of muscle activation; the flexor carpi ulnaris and brachioradialis were identified as major muscles in each impactphase. This analysis may be used to generate biomechanical profiles of gardening tasks for practitioners when designing efficientgardening interventions for physical health or rehabilitation.

KURT 내부 In-DEBS 시스템에 설치된 벤토나이트 완충재의 균질성 평가

윤석,김진섭,김건영,김경수,소재철 한국방사성폐기물학회 2016 한국방사성폐기물학회 학술논문요약집 Vol.2016 No.10

공학적규모 이상의 균질 완충재 블럭 생산을 위한 방법론 제시 및 제작조건 도출

김진섭,박정찬,김건영,소재철 한국방사성폐기물학회 2015 한국방사성폐기물학회 학술논문요약집 Vol.2015 No.10

CVM에 의한 환경가치 편익 추정에 관한 연구

김장욱 ( Kim Jang-wook ),소재철 ( So Jae-chul ),남궁문 ( Nam Gung-moon ),안송엽 ( Ahn Song-yeob ),엄영숙 ( Eom Young-sook ) 한국환경기술학회 2003 한국환경기술학회지 Vol.4 No.3

조건부가치 측정법을 이용한 수질개선 편익 추정에 관한 연구

김장욱 ( Kim Jang Wook ),소재철 ( So Jae Chul ),남궁문 ( Namgung Moon ),안송엽 ( Ahn Song Yeob ) 한국환경기술학회 2003 한국환경기술학회지 Vol.4 No.1

Kinematic and Kinetic Analysis of Upper Limb Motions during Horticultural Activities

이아영,박신애,김재정,소재무,손기철 한국원예학회 2016 원예과학기술지 Vol.34 No.6

The objective of this study was to analyze the kinematic and kinetic characteristics of twohorticultural activities: seed sowing and planting plant. Thirty-one male university students(aged 26.2 ± 2.0 years) participated in this study. Kinematic factors (movement times, peakvelocity, joint angles, and grasp patterns) were assessed using a three-dimensional motionanalysis system while the subjects performed the horticultural activities. Kinetic factors(muscle activation of eight upper-limb muscles: the anterior deltoid, serratus anterior, uppertrapezius, infraspinatus, latissimus dorsi, biceps brachii, brachioradialis, and flexor carpiradialis) were assessed using surface electromyography. The acts of seed sowing and plantingplant were comprised of five tasks which included six types of phases: reaching, grasping,back transporting, forward transporting, watering, and releasing. The movement times, peakvelocity, joint angles, and grasp patterns were significantly different across the tasks involvedin the horticultural activities. All eight muscles of the upper limbs were utilized during thehorticultural activities, and the muscle activation of the serratus anterior was the highestcompared to that of the other muscles tested. The kinematic and kinetic characteristics of thesehorticultural activities showed similar characteristics to reaching and grasping rehabilitationtraining and daily living activities. The present study provides reference data for commonhorticultural activities using a kinematic and kinetic analysis.