Optic flow, the pattern of apparent motion elicited on the retina during movement, has been demonstrated to be widely used by animals living in the aerial habitat, whereas underwater optic flow has not been intensively studied so far. However optic flow would also provide aquatic animals with valuable information about their own movement relative to the environment; even under conditions in whi...

A micro aerial vehicle with a variable forward-sweep wing is proposed with the goal of enhancing performance and controllability during high-angle-of-attack perching maneuvers. Data is presented from a series of wind tunnel experiments to quantify the aerodynamic effects of forward sweep over a range of angles of attack from -25° to +75°. A nonlinear dynamics model is constructed using the wind...

Bridging the gap between complex signal data output and clear interpretation by non-expert end-users is a major challenge many scientists face when converting their scientific technology into real-life application. Currently, pattern recognition algorithms are most frequently encountered to close this gap, not in least because of straight-forward implementation via convenient software packages....

Graphene-supported, highly reduced, high surface area CoO thin films, produced by straight-forward NaBH4 reduction of cobalt nitrate in a sonicated DMF suspension bulk graphite, are active for low temperature CO oxidation.

Future cellular networks are expected to have resources for data processing at the edge of the network, providing the benefits of cloud computing without long routing delays. Such computing resources may for example be used in a control scenario, where wireless sensors upload data to a controller running at the edge of the mobile network. The controller computes an actuation command that is the...

There are many notions of expansion and in previous lectures we have seen edge and spectrum expansion. In this lecture, we will see the notion of vertex expansion. Many of these notions of expansion are in fact equivalent, but we won’t discuss in this course why. Our goal today is to show that expanders exist using the probabilistic method. According to the probabilistic method, in order to sho...

We investigate False Positive (FP) accusation probabilities for q-ary Tardos codes in the Restricted Digit Model. We employ a computation method recently introduced by us, to which we refer as Convolution and Series Expansion (CSE). We present a comparison of several collusion attacks on q-ary codes: majority voting, minority voting, Interleaving, μ̃-minimizing and Random Symbol (the q-ary equiv...

We have evaluated the information theoretical performance of variable rate adaptive channel coding for Rayleigh fading channels. The channel states are detected at the receiver and fed back to the transmitter by means of a noiseless feedback link. Based on the channel state informations, the transmitter can adjust the channel coding scheme accordingly. Coherent channel and arbitrary channel sym...