Modeling method of failure dependent system based on time varying copula function

Wind Power System Risk Assessment Based on Fuzzy Clustering and Copula Function Modeling

According to the characteristics of the correlation of multiple wind farm output, this paper put forwards a modeling method based on fuzzy c-means clustering and the copula function, and correlation wind farms are inserted into IEEE-RTS79 reliability system for risk assessment. By the probabilistic load flow calculated by Monte Carlo simulation method, the probability of the accident is derived...

Time-Varying Monetary Policy Reaction Function: The Case of Iran

Time Dependent Analysis of Micro-tubes Conveying Nanofluids Under Time-Varying Heat Flux

  In this paper the numerical analysis of flow and time dependent heat transfer of micro-tube conveying nanofluid in laminar flow is investigated. In this study, convection heat transfer of nanofluid and base fluid and transient analysis for time-varying heat flux for time step of 0.0001 second are elucidated. It is observed that the pumping power of nanofluid flowing and the maximum temperatur...

Spatio-temporal precipitation modeling based on time-varying regressions

A time-varying regression model is considered, based on monthly precipitation data from gauge measurements. The model accounts for orographic effects, that is elevation and aspect of the terrain. The study area is NCDC climate division 2 in a mountainous area in northern New Mexico. We assess spatio-temporal variability and also trace the dependence of precipitation on El Niño/Southern Oscillat...

A Parametric Method for Modeling of Time Varying Spectral Properties

The problem to track time-varying properties of a signal is studied. The somewhat contradictory notion of \time-varying spectrum" and how to estimate the \current" spectrum in an on-line fashion is discussed. The traditional concepts and relations between time and frequency resolution are crucial for this problem. An adaptive estimation algorithm is used to estimate the parameters of a time-var...