The basic approach for measuring electron-ion recombina-tion rate coefficients in merged-beams electron-ion collision experiments at heavy-ion storage rings is outlined. As an example experimental results for the low temperature recombination of C iv ions are compared with the recommended theoretical rate coefficient by Mazzotta et al. The latter deviates by factors of up to 5 from the experime...

In this paper, we propose two adaptive frame size Aloha algorithms, namely adaptive frame size Aloha 1 (AFSA1) and adaptive frame size Aloha 2 (AFSA2), for solving radio frequency identification (RFID) multiple-tag anti-collision problem. In AFSA1 and AFSA2, the frame size in the next frame is adaptively changed according to the real-time collision rate measured in the current frame. It is show...

In this study, the problem of navigation in dynamic and unknown environment is investigated and a navigation method based on force field approach is suggested. It is assumed that the robot performs navigation in...

Wireless Multimedia Sensor Networks has constraints when huge data has to be delivered. This system proposes architecture to reduce the packet error rate and retransmission of image. In addition it proposes a queue strategy to reduce packet error rate. In addition, it allows only one node to transmit at-a-time. Thus reducing collision and retransmissions.