Load balancing routing algorithm for data gathering sensor network

Data gathering sensor network is considered in the paper. In these networks each node is used both as source of data and as retransmitter of packets, going from other nodes. A few important parameters of sensor network (such as lifetime, data rate, channel utilization etc.) depend on chosen routing scheme. Incorrectly chosen scheme results in appearance of bottle-necks, which can highly delay data transmission and lead to rapid battery discharge of particular nodes. In this paper we propose routing scheme for convergecast sensor networks, which decreases number of bottle-necks. Effectiveness of proposed algorithm is shown via simulation

"Tap2smart": a New Lock-screen Option for Modern Smartphones

Nowadays, besides being used as phones, smart­ pbones involve a lot of such important additional functions as being organizer, valet, ID etc. That is why the users are to be sure, that their personal data kept In a smartphone Is reliably protected incase of device loss or theft. One of the basic security mechanisms is a lock screen and modem smartphone has a lot of difrereot lock screeo options (e.g. PIN, pattern etc.). In this paper we consider a new user hybrid scheme based on tapping the rhythmic sequence on a lock screen. For the scheme we propose a decision making algorithm based on statistical analysis of tapped sequence which provides a high steadiness and a continuous adaptation to a user