State estimation in the energy management center of active distribution networks has attracted many attentions. Considering an increase in complexity and real-time management of active distribution networks and knowing the network information at each time instant are necessary. This article presents a two-step multi-area state estimation method in balanced active distribution networks. The prop...

Since density is considered as one of the most important numerical indices to explain quantitative values of a plant community by affecting on many aspects and activity of ecosystem, on the other hand, awareness about plants distribution pattern in environment is an essential preparation for measurement and study of vegetative cover, therefore, in this research determination of density and dist...

the present paper is a case study on one of the old areas in the city of ardabil with an approach of gentrification model to gentrify and rehabilitate the old urban context. besides the library studies, this study includes local observations and questionnaires which deal with the opinions of residents on the problems and shortcomings. it also includes the ways of satisfying the residents to kee...

Controller Area Network (CAN) is a real-time network that was initially conceived for automotive applications, but which is now becoming very popular as a fieldbus for automated factory environments because of its appealing features and low implementation costs. Controller Area Networks (CANs) are being used more and more today to support communications in real-time systems. However, under heav...

The yard allocation problem (YAP) is a real-life resource allocation problem faced by the Port of Singapore Authority (PSA). As the problem is NP-hard, we propose an effective meta-heuristic procedure, named critical-shaking neighborhood search. Extensive experiments have shown that the new method can produce higher quality solutions in a much shorter time, as compared with other meta-heuristic...

The importance of faulttolerance mechanisms in applicationindependent systems, has led to the increased use of techniques based in “macroscopic” replication of components and software oriented error processing. In distributed environments, management of the replication of components throughout different sites, may benefit from the availability of reliable broadcast or multicast protocols. This ...

In a local area network for engineering purposes the external accuracy of different RTKtechniques is analysed in detail. Three different solutions for the network are produced by varying the kind of the necessary reference station. First of all a local reference station resulting in very short baselines is used for the RTK-measurements. A second solution for the network is produced by using the...