D. Ruprecht∗, R. Speck†∗, M. Emmett‡, M. Bolten§ R. Krause∗, ∗Institute of Computational Science, Università della Svizzera italiana, Lugano, Switzerland. Email: {daniel.ruprecht, rolf.krause}@usi.ch †Jülich Supercomputing Centre, Jülich, Germany. Email: [email protected] ‡Lawrence Berkeley National Laboratory, Berkeley, USA. Email: [email protected] § Department of Mathematics and Science, ...

During November 1994, broadband acoustic signals were transmitted from a 75-Hz source to a 20-element, 700-m vertical array at approximately 3250 km range in the eastern North Pacific Ocean as part of the acoustic engineering test (AET) of the acoustic thermometry of ocean climate program [Worcester et al., J. Acoust. Soc. Am. 105, 3185-3201 (1999)]. The AET tomography signal can be treated as ...

In this paper we investigate the behavior of certain types of mixed time scale adaptive algorithms. These systems comprise a \fast" or quickly changing algorithm mutually coupled to a \slow" or slowly changing algorithm. They arise naturally in a variety of adaptive environments such as in IIR system identi cation, the training of recurrent neural networks, decision feedback equalization, and o...

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Two-time-scale stochastic approximation, a generalized version of the popular has found broad applications in many areas including control, optimization, and machine learning. Despite its popularity, theoretical guarantees this method, especially finite-time performance, are mostly achieved for linear case while results nonlinear counterpart very sparse. Motivated by classic control theory sing...

The sulfur isotopic composition of dissolved sulfate in seawater has varied through time. Distinct variations and relatively high rates of change characterize certain time intervals. This allows for dating and correlation of sediments using sulfur isotopes. The variation in sulfur isotopes and the potential stratigraphic resolution of this isotope system is discussed and graphically displayed.

This report summarizes the international divisions and ages in the Geologic Time Scale, published in 2012 (GTS2012). Since 2004, when GTS2004 was detailed, major developments have taken place that directly bear and have considerable impact on the intricate science of geologic time scaling. Precam brian now has a detailed proposal for chronostratigraphic subdivision instead of an outdated and ab...

We study the problem of statistical multiplexing of cell streams which have correlations at multiple timescales. Each stream is modeled by a singularly perturbed Markov-modulated process with some state transitions occurring much more infrequently than others. One motivation of this model comes from variable-rate compressed video, where the fast timescale dynamics may correspond to correlations...