tehran city has been subject of critical environmental challenges during the course of 20th. century namely: massive population growth, broad expansion, reduction in urban open/green spaces, increasing in energy consumption and waste production. releasing industrial wastewater into river valleys have led to considerable changes in structure of city's natural landscape. the natural structur...

In Mobile ad hoc Networks (MANETs), the packet scheduling process is considered major challenge because of error-prone connectivity among mobile nodes that introduces intolerable delay and insufficient throughput with high loss. this paper, a Modified Firefly Optimization Algorithm improved Fuzzy Scheduler-based Packet Scheduling (MFPA-FSPS) Mechanism proposed for sustaining Quality Service (Qo...

The most effective threat for wireless sensor networks (WSN) is Vampire attacks on nodes as they can stretch the network connectivity among them and influence network’s energy, which drain network. attack has particular malicious nature of in widely exploit features combined routing protocol. Fuzzy rules fuzzy sets are highly optimal techniques mitigating vampire network, quantify uncertain beh...

 Mobile sensor networks rely heavily on inter-sensor connectivity for collection of data. Nodes in these networks monitor different regions of an area of interest and collectively present a global overview of some monitored activities or phenomena. A failure of a sensor leads to loss of connectivity and may cause partitioning of the network into disjoint segments. A number of approaches have be...

Introduction: Many theories have been proposed about the etiology of autism. One is related to brain connectivity in patients with autism. Several studies have reported brain connectivity changes in autism disease. This study was performed on Electroencephalogram (EEG) studies that evaluated patients with autism, using functional brain connectivity, and compared them with typically-developing i...