Radio Frequency Identification (RFID) is an auto recognition system that consistis of a number of tags and readers. There could be multiple tags a reader should identify. Since a medium is shared by multiple tags, a collision occurs at the reader’s side when two or more tags get transmitted simultaneously. Therefore, anti-collision mechanism that collaborately arbitrates collisions is required....

Tania P. Pynn is Public Health Nurse, Thunder Bay District Health Unit, Thunder Bay, Ontario. Bruce R. Pynn is Oral and Maxillofacial Surgeon, Thunder Bay Regional Health Sciences Center, Thunder Bay, Ontario. Reprints not available from the authors. J Emerg Nurs 2004;30:542-7. Available online 03 October 2004. 0099-1767/$30.00 Copyright n 2004 by the Emergency Nurses Association. doi: 10.1016/...

background economic consequence analysis is vital for recognizing pipeline comprehensive risk analysis and emergency response planning. objectives the purpose of this study was to estimate economic loss due to fire and explosion in petrochemical feed and product pipelines. materials and methods the present study which performed on 47 pipelines of a petrochemical special zone, pertinent pipeline...

CSMA/ECA is a contention protocol that makes it possible to construct a collision-free schedule by using a deterministic backoff after successful transmissions. In this paper, we further enhance the CSMA/ECA protocol with two properties that allows to fairly accommodate a large number of contenders in a collision-free schedule. The first property, called hysteresis, instructs the contenders not...

In this short note we revisit the gain of integrability property of the gain part of the Boltzmann collision operator. This property implies the W l,r k regularity propagation for solutions of the associated space homogeneous initial value problem. We present a new method to prove the gain of integrability that simplifies the technicalities of previous approaches by avoiding the argument of gai...