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RISS 인기검색어
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- 저자 : 안경수 ( An Gyeong Su ) (검색결과 7 건)
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강관원,안경수,김양수,Gang, Gwan-Won,An, Gyeong-Su,Kim, Yang-Su 한국수자원학회 1985 물과 미래(한국수자원학회지) Vol.18 No.4
In the analysis, monthly streamflow records atthe gauging station in Nakdong, Han and Geum river were used. Also, the fitness of monthly streamflow to Gamma and Long-normal distribution was tested by Kolomogorv-Smirnov test. The results obtained in this study can be summarized as follws (1) The fitness of monthly streamflow to two-parameter Gamma distribution was tested by Kolomorov-Smirnov test, which fits well to this Gamma distribution (2) The Run-length and Run-sum were simulated by the Gamma model. In this result, run-length and Run-sum of monthly streamflow were fit for Gamma model (3) The mean decreases (increases) the expected surplus (deficit) Run-Sum of the monthly streamflow. The higher the truncation level of negative Run-length and Run-sum the larger is the effect of mean. 본 연구에서는 낙동강, 한강 및 금강의 중요관측지점의 월평균 유출량을 분석에 사용하였으며, 먼저 일정유량(Truncation level) 별로 Run-length와 Run-sum에 대한 2-변수 Gamma 분포 및 대수정규분포의 적합성 여부를 검토하였던 바 Gamma 모델이 적합한 것으로 판명된 자료와 실측치와 비교하였다. 그리고 Run-length 및 Run-sum에 대한 일정유량별로 평균치의 변화에 대한 성질을 구명하였다.
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Simulation Technique에 의한 수자원의 변동양상 및 그 모의발생모델에 관한 연구
이순탁,안경수,이의락,Lee, Sun-Tak,An, Gyeong-Su,Lee, Ui-Rak 한국수자원학회 1976 한국수자원학회논문집 Vol.9 No.2
본 연구는 우리나라의 한강, 낙동강, 금강 및 영산강유역을 포함한 광역적인 하천유역에 있어서의 년 및 월유량과 항우량에 대하여 Correlogram 및 Spectrum 분석을 통한 시계열의 해석과 그 변동양상을 구명하고 이 특성을 기초로 해서 년 및 월수문량의 장기간의 Simulation을 위한 추계학적모델의 개발과 검토에 그 목적을 두었다. 먼저 수문량의 변동양상의 분석에 있어서는 미국, 유럽 및 호주대륙의 유량분석의 결과와 대비하면서 유량모집단의 표준편차($\sigma$)를 년유량의 대수평균치(L)에 대하여 지수함수의 관계식으로 표시하여 수자원량의 변동양상을 구명하였다. 다음 년수문량(유량 및 항우량)의 시계열의 각 성분을 알기 위하여 Correlogram 및 Spectral density분석을 행하였으며, 그 Simulation을 위한 단일이절 모델로서는 년수문량의 적정분포형인 대수정규분포와 Monte Carlo 방법에 기초를 둔 LN모델(Log-Normal Model)과 1차선형 자기회귀모델인 Markov모델을 설정하여 비교.검토하였다. 다음으로 월수문량(유량 및 항우량)의 시계열 및 추계학적 성분 역시 Correlogram 및 Spectral density분석에 의하여 구명하였으며, 그 Simulation에 있어서는 이 시계열특성과 낙동강 자료에 의하여 연구, 검토된 바 있는 상유천 월유량의 모의발생모델을 광역적으로 적용시키고 또한 월항우량에 대해서도 적용시켜서 이 모델의 적용성과 아울러 광역적인 월수문량의 모의발생모델을 확립토록 하였다. These studies are aimed at the analysis of systematic variation pattern of water resources in Korean river catchments and the development of their simulation models from the stochastic analysis of monthly and annual hydrologic data as main elements of water resources, i.e. rainfall and streamflow. In the analysis, monthly & annual rainfall records in Soul, Taegu, Pusan and Kwangju and streamflow records at the main gauging stations in Han, Nakdong and Geum river were used. Firstly, the systematic variation pattern of annual streamflow was found by the exponential function relationship between their standard deviations and mean values of log-annual runoff. Secondly, stochastic characteristics of annual rainfall & streamflow series were studied by the correlogram Monte Carlo method and a single season model of 1st-order Markov type were applied and compared in the simulation of annual hydrologic series. In the simulation, single season model of Markov type showed better results than LN-model and the simulated data were fit well with historical data. But it was noticed that LN-model gave quite better results in the simulation of annual rainfall. Thirdly, stochastic characteristics of monthly rainfall & streamflow series were also studied by the correlogram and spectrum analysis, and then the Model-C, which was developed and applied for the synthesis of monthly perennial streamflow by lst author and is a Markov type model with transformed skewed random number, was used in the simulation of monthly hydrologic series. In the simulation, it was proved that Model-C was fit well for extended area in Korea and also applicable for menthly rainfall as well as monthly streamflow.
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AgI-based Fast Ionic Conductor의 합성 및 전기적 성질
박성호,안경수,김규홍,최재시,Park, Seong Ho,An, Gyeong Su,Kim, Gyu Hong,Choe, Jae Si 대한화학회 1990 대한화학회지 Vol.34 No.6
AgI(80 mol%)를 기질로 하여 AgBr 15 mol% + CuI 5mol%, AgBr 10 mol% + CuI 10mol%, AgBr 5 mol% + CuI 5mol%의 계를 제조하여 이들의 이온 전도성을 상온에서 200$^{\circ}C$까지 임피던스분석기(impedance analyzer)를 이용하여 측정한다. 이 온도영역에서 활성화에너지는 0.6∼0.7 eV를 얻을 수 있었으며, 5 mol% AgBr계의 이온 전도성이 가장 컸으며 활성화에너지는 가장 작음을 보였다. The AgI systems containing various mol% of AgBr and CuI were synthesized. X-ray analyses revealed that all synthesized systems had face centered cubic structures. Using impedance analyzer, electrical conductivity measurements of these systems were carried out at temperatures from 20 to 200$^{\circ}C$. From this measurement, it was found that the activation energies of these systems were in the range 0.6∼0.7 eV and the system containing 5 mol% AgBr showed the highest conductivity and the smallest activity energy.
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김영제 ( Kim Yeong Je ),장의종 ( Jang Ui Jong ),안경수 ( An Gyeong Su ) 한국환경영향평가학회 2004 환경영향평가 Vol.13 No.1
A wide spectrum of risk assessments including qualitative and quantitative approaches and the analyses of its consequence were performed for an environmentally sensitive object such as incineration facility. To find out the major risk concerns, HAZOP(Hazard and Operability) were performed. Then, the frequency of hazardous gas release scenarios was calculated. Finally consequence analyses were performed for the gas release scenarios. On the basis of analyses through evaluation, a more innovative way for making a better control system or the enhancement of operation procedure was given. The results from these analyses would act as a substantial benefits for the incineration facility operator, and giving some measured information for the neighbors and the people involved.
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