introduction : confirmation of proper endotracheal tube placement is one of the most important and lifesaving issues of tracheal intubation. the present study was aimed to evaluate the accuracy of tracheal ultrasonography by emergency residents in this regard.   method : this was a prospective, cross sectional study for evaluating the diagnostic accuracy of ultrasonography in endotracheal tube ...

Background & Aim: Saffron (Crocus sativus L.) formerly was important in Turkey. Saffron cultivation has been decreased and it is now only cultivated in three villages in this country. It is triploid and exclusively propagated in a vegetative way by corms. In Turkey, saffron is traditionally planted by placing corms in rows randomly without grading or sorting; which results in placement...

In this paper, a new method based on branch placement for the optimal positioning of Phasor Measurement Units (PMUs) in power systems is proposed. In this method, the PMUs are in type of single-channel and are installed at the beginning of the branches. Therefore, they are able to measure the bus voltages. Also, the installation of the PMUs on the branches increases the security of observabilit...

Geo-replication is the process of maintaining copies of data at geographically dispersed datacenters for better availability and fault-tolerance. The distinguishing characteristic of geo-replication is the large wide-area latency between datacenters that varies widely depending on the location of the datacenters. Thus, choosing which datacenters to deploy a cloud application has a direct impact...

Poorly drained claypan soils can increase the importance of tillage and N management for corn (Zea mays L.) production. Field research in 2008, 2009 and 2010 (high rainfall years) near Novelty, MO (40° 1' N, 92° 11' W) sought to determine the effect of polymer-coated urea (PCU) placement [strip-tillage (ST) deep banded and no-till (NT) broadcast] and application timing (fall, early preplant...

nowadays, the subject of vision metrology network design is local enhancement of the existing network. in the other words, it has changed from first to third order design concept. to improve the network, locally, some new camera stations should be added to the network in drawback areas. the accuracy of weak points is enhanced by the new images, if the related vision constraints are satisfied si...