Design and Implementation of a RF Based Anti-Drone System

Drones or unmanned aerial vehicles are having an increased popularity in all fields of applications such as transportation, traffic monitoring, military surveillance etc. However, this technology can be used for destruction when it fall in the hands of criminal, who are using it for terrorist or unauthorized activities. There is a rising demand for anti-drone systems, which can detect and block their activities in order to make full use of the great advantages provided by this technology. The project aims to provide a systematic design of a drone detection mechanism using the RF control signal exchanged between the drone and its remote controller. The system generates a high-power jamming signal transmitted over the same carrier frequency and band of the detected drone and directed towards the drone location in order to disconnect it from its controller causing it to land safely or trigger a mechanism to return it to home. This system is designed to work only at 2.4 GHz band.Scopu

Alterations in proteins and amino acids of the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense in response to industrial wastewater pollution

The effect of industrial wastewater on the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense was investigated. The data showed that P. limnetica was more sensitive to pollution than A. wisconsinense. The treatments with different levels of wastewater exerted pronounced reductions in protein and amino acids content. SDS-PAGE analysis revealed that the cyanobacteria grown in the industrial wastewater showed induction in the synthesis of certain polypeptides and repression of others. The treatments of P. limnetica with wastewater stimulated the appearance of six protein bands with molecular masses of 28, 30, 31, 32, 58 and 97 kDa. The same treatments caused the disappearance of 20, 38 and 56 kDa. The structural protein pattern of the treated A. wisconsinense showed appearance of 16, 30, 170 and 230 kDa and disappearance of 56 kDa. The treatment of the two investigated cyanobacteria with different levels of wastewater stimulated the biosyntheses of different amino acids and inhibited others