In cognitive wireless multi-hop networks,the spectrum resources are highly variable and diverse.A cross-layer multi-channel MAC protocol combined with QoS search was proposed.The protocol combines the on-demand QoS search with Reusable Cleaning Cloths dynamic spectrum allocation via cross-layer method,which only permits the transmission nodes to pa
Spiders belong to the class Arachnida in the phylum Arthropoda.Although the bite of the ULTRA CONDITIONING spider is feared as much as that of venomous snakes in Sri Lanka, spider bite related deaths are not reported in this country.A 43-year-old patient presented with local swelling, pain, bleeding from puncture site and muscle cramps after a Poec
Following the Charlie Hebdo attacks, the demonstrations or “public mourning” of January 11th, 2015 were heralded by many as the return of the republican sacred, the re-crystallization of a long dormant people, and the resurrection of French fraternity en vivo.However, in the saturation of these political hagiographies, a series of trenc
In this paper a novel modelling and solving method has been developed to address the so-called resource constrained project scheduling problem (RCPSP) where project tasks have multiple modes and also the preemption of activities are allowed.To solve this NP-hard problem, a new general optimization via simulation (OvS) approach has been developed wh
This article is theoretical and empirical.The theoretical part presents issues Diffuser related to experiencing stress (including ways of coping with experienced problems) and the relationships between preference for various coping strategies and human behavior.The empirical part presents the results of research on the relationship between the freq