Introduction: The rapid use of computed tomography (CT) scan is of great concern, due to increase in patients’ dose. Optimization of CT protocol is a vital issue in dose reduction. This study aimed to optimize radiation dose in cranial CT and assess modifications in image quality under radiation dose reduction. Material and Methods: A poly(me...

Isolation of cell free fetal DNA (cffDNA) from maternal serum usually leads to very low concentrations of DNA impeding further resolving through conventional methods of electrophoresis. Although several protocols have been described for capillary electrophoresis (CE) of double stranded DNA, they usually need using special polymers or coated capillaries which degrade over time. Herein, we propos...

In the next generation Internet protocol (IPv6), mobility is supported by means of Mobile IPv6 (MIPv6). As a default part of the MIPv6 protocol, route optimization is used to route packets directly to a mobile node’s currently used address at the mobile node’s visited subnet. Return Routability is the protocol suggested by the IETF for managing this task. Route optimization is often carried out...

Conflict resolution of the clinical safety and the clinical efficiency is the first hurdle for the success of TR that is a kind of experimental phase of human based clinical trial. Maximizing both safety and efficiency produces conflicts, and it requires optimization of the TR protocol. Protocol management tool named "e-Protocol" having function of the protocol generation and the protocol monit...

In this paper, a new hybrid routing protocol is presented for low power Wireless Sensor Networks (WSNs). The new system uses an integrated piezoelectric energy harvester to increase the network lifetime. Power dissipation is one of the most important factors affecting lifetime of a WSN. An innovative cluster head selection technique using Cuckoo optimization algorithm has been used in the desig...

This paper introduces the wireless sensor network routing protocol and its security, and introduces the main several kinds of routing protocols, including the data centric routing protocol, hierarchical routing protocols and location-based routing protocol, finally according to the analysis of routing protocol common attack method. Ant colony algorithm is a distributed parallel algorithm. A sin...

The problem with the optimization of MPLS (Multi Protocol Label Switching) network is discussed in terms of finding such label switching paths (LSP) for all flows in the network, which would provide minimal load on the links in it, as collaboration of the protocol of the third layer (IS-IS or OSPF) and MPLS is reported. The proposed analytical model is reduced to optimization problem which is s...

mobile ad hoc networks (manet) are constructed by mobile nodes without access point. since manet has certain constraints, including power shortages, an unstable wireless environment and node mobility, more power-efficient and reliable routing protocols are needed. the olsr protocol is an optimization of the classical link state algorithm. olsr introduces an interesting concept, the multipoint r...