Are External Magnetic Disturbances Suppressed by Magnetometer Noise when Estimating a Nanosatellite’s Rotational Motion?

Disturbances of sleep by noise

This paper deals with noise-induced sleep disturbances that are regarded as the most deleterious effects of noise with aftereffects on mood and performance the next day. In the long run noise-induced sleep disturbances are assumed to contribute to the genesis and manifestation of multifactorial diseases. The paper gives a rough overview over the state of the art and of the possibility to preven...

Estimating unobservable signal by Markovian noise induction When noise helps in Statistics!

A sub threshold signal is transmitted through a channel and may be detected when some noise – with known structure and proportional to some level – is added to the data. There is an optimal noise level, called of stochastic resonance, that corresponds to the minimum variance of the estimators in the problem of recovering unobservable signals. For several noise structures it has been shown the e...

Noise-induced transition from translational to rotational motion of swarms.

We consider a model of active Brownian agents interacting via a harmonic attractive potential in a two-dimensional system in the presence of noise. By numerical simulations, we show that this model possesses a noise-induced transition characterized by the breakdown of translational motion and the onset of swarm rotation as the noise intensity is increased. Statistical properties of swarm dynami...

Estimating Block Accessses when Attributes are Correlated

Most database systems fallaciously assume that attributes are independent. This assumption leads such systems to systematically overestimate’the costs of queries and thus to select execution strategies that substantially increase the que.ries’ prooessing time. In this paper we show how the concepts of Schur concavity and majorizahon can be used to elficiently estimate.the cost of a query when t...

Rotational Motion