On 2019 August 30, a second interstellar object 2I/Borisov was discovered 2 years after the discovery of first known object, 1I/’Oumuamua. Can we send spacecraft to this using existing and near-term technologies? In paper assess technical feasibility mission 2I/Borisov. We apply Optimum Interplanetary Trajectory Software (OITS) tool generate trajectories As results, get minimal ΔV trajectory wi...

in wireless sensor networks, optimal consumptionof energy and having maximum life time are important factors. in this article attempt has been made to send the data packets with particular reliability from the beginning based on aodv protocol. in this way two new fields add to the routing packets and during routing and discovering of new routes, the lowest remained energy of nodes and route tra...

Many email and messaging applications on Android utilize the Intent API for sharing images, videos, and documents. Android standardizes Intents for sending and Intent Filters for receiving content. Instead of sending entire files, such as videos, via this API, only URIs are exchanged pointing to the actual storage position. In this paper we evaluate applications regarding a security vulnerabili...

The prevalent mechanism to avoid congestion in IP networks is the control of the sending rate with TCP. Dynamic routing strategies at the IP layer are not deployed because of problems like route oscillations and out-of-order packet deliveries. With the adoption of P2P technology, routing is done also in these overlay networks. With multi-source download protocols peers upload and download to/fr...