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 dynamic spectrum allocation via cross-layer method,which only permits the transmission nodes MACA ENERGY PLATINUM to partic
With the impact of global climate change and the urbanization process, the risk of urban flooding has increased rapidly, especially in developing countries.Real-time monitoring and prediction of flooding extent and drainage system are the foundation of effective urban flood emergency management.Therefore, this paper presents a rapid nowcasting pred
Modern industrial product design implies presence of many different materials.Consequently, in the recycling process, shredding and separation procedures are applied.However, all materials cannot be completely separated; therefore, there cable 20 pin is a contamination in the recycling streams.The quality of the materials streams can be reduced in
This study aims to examine, from a historical perspective, the relations between ethnic-racial diversity in Brazil and didactic-pedagogic treatment of Afro-Brazilian history and culture in two books, concerning History Brazil, issued in the first half of the twentieth century, assuming that these teaching materials also exercised in that period the
We study the system of static scalar fields coupled to charged compact reflecting stars through both analytical and numerical methods.We enclose the star in a box and our solutions are related to cases Circuit Breaker without box boundaries when putting the box far away from the star.We provide bottom and upper bounds for the radius of the scalar h