In this paper, a new method for developing a lower bound on exact completion time distribution function of stochastic PERT networks is provided that is based on simplifying the structure of this type of network. The designed mechanism simplifies network structure by arc duplication so that network distribution function can be calculated only with convolution and multiplication. The selection of...

An improvement of the Active Shape procedure identifying new examples of previously learned shapes using the point distribution model is presented. The novel segmentation and interpretation approach incorporates a priori knowledge about the objects of interest and their speciic structural relationships to provide robust segmentation and labeling. The method was utilized to successfully identify...

The main goal of this study is the use of Lyapunov’s stability theory to a three-phase four-wire shunt active power filter (SAPF), since this method has been applied effectively to other areas of converter. The dynamic model of the SAPF is first established, after that, a combination of fuzzy tracking control and Lyapunov function is suggested in order to impose a desired transient waveform on ...

With the gradual increase of distributed energy penetration, traditional optimization model distribution network can no longer guarantee stable and efficient operation network. In order to deal with inevitable uncertainty energy, a new robust optimal method is proposed for active (ADN) based on minimum confidence interval Beta in this paper. First, an ADN established second-order cone include s...

This paper describes a pseudo-real time distribution network simulator developed to investigate the use of real time distribution system control presets to better integrate high levels of distributed energy resources into active distribution networks. A combination of historical and modelled generation profiles, along with varying demand patterns, are used to demonstrate the real time applicati...

Multiple nodes (such as distributed generation (DG), electric vehicles (EV), energy storage (ES), flexible loads (FL), etc.) are connected to the active distribution network (ADN), which changes its original operational mode. According bidirectional current and low-voltage transmission mode, this study proposed a multi voltage electricity flat loop network, AC/DC (Alternating Current/ Direct Cu...

in this research, active capacitance circuit and the feature of negative resistance are analysed in details. also, a new active filter is presented based on active capacitance circuit. for simulations, we used matlab and advanced design system(ads). proposed active filter (rf) is a narrow band filter. the results of simulation shows some aspects of sustainability and low noise feature. the circ...

today, with the advanced statistical techniques and neural networks, predictive models of distribution have been rapidly developed in ecology. purpose of this research is to predict and map the distribution of tetranychus urticae koch (acari: tetranychidae) using mlp neural networks combined with genetic algorithm in surface of farm. population data of pest was obtained in 2016 by sampling in 1...