Failures in the water distribution network are some most important factors in water losses, water shortage and dissatisfaction of users and secondary pollutions as well. This research aimed to analyze failure in water distribution networks during 2006-2008, for better water management. Daily failure reports in Ahvaz, Iran distribution network during 2006-2008, were collected from emergency depa...

As one of the key aspects in reliability redox-based resistive switching memories (ReRAMs), maximizing their endurance is high relevance for industrial applications. The major limitation regarding considered excessive generation oxygen vacancies during cycling, which eventually leads to irreversible RESET failures. Thus, could be increased by using combinations oxide and ohmic electrode (OE) me...

VAR support should be supplied as close to the load as possible to minimize transmission losses. For voltage control and for improvement of total power factor in a distribution system the circuit- breaker switched capacitor banks can be used. The problems with this solution are the voltage steps caused by the large sizes of the capacitor banks as well as the transients caused on insertion. Thyr...

We solve the coupled mode equations governing the chalcogenide nonlinear fiber Bragg gratings (FBGs) numerically, and obtain the bistability characteristics. The characteristics of the chalcogenide nonlinear FBGs such as: switching threshold intensity, bistability interval and on-off switching ratio are studied. The effects of FBG length and its third order nonlinear refractive index on FBG cha...

The paper presents the results of studies abnormal conditions in a switched reluctance drive (SRD) due to failures control algorithms. It discusses one most common algorithms for these drives without use sensors, which is simple and easy configure. practical application this algorithm showed that various anomalous phenomena could occur it, expressed, example, sharp increase amplitude phase curr...

Recent advances in generalized multiprotocol label switching (GMPLS) [1,12] and the extensive study and understanding of packet-over-optical network architecture, has made it possible for a single integrated control plane to manage the resources of the packet network and underlying optical transport network in an unified manner. This opens up the possibility for coordinated actions across the t...

Intermittent electrical faults and insulation failures in aging aircraft are causing many problems including electrical fires or even worse, fuel tank explosions, ignited by arc and sparks generated from faulty contacts. Arcing faults develop by long process of electric wire degradation, cuts, burns, or loose contacts, and they are not easily detected. The long operational lifespan of aircraft ...