The idea of variable sampling interval and warning limits (VSIWL) is proposed for X charts. Expressions for the performance measures for the charts with VSIWL are developed. The methods presented are general and can be applied to other Shewhart control charts. The performances of VSIWL X charts are compared numerically with that of VSI X charts with and without runs rules for switching between ...

We present the notion of d is t r ibuted computation in a layered somatotopically organized computer, present the Pitts-McCulloch scheme for obtaining standard forms, provide anarchic networks for b a l l i s t i c and tracking modes of behaviour, and relate th is to the v isuomotor ac t i v i t y of the f rog.

1 Laboratory for Social and Neural Systems Research, Institute for Empirical Research in Economics, University of Zurich, Zurich, Switzerland, 2 Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom, 3 The Rotman Research Institute, Baycrest Center, Toronto, Ontario, Canada, 4 School of Engineering and Science, Jacobs University Bremen...

We study the influence of electron puddles created by doping of a 2D topological insulator on its helical edge conductance. A single puddle is modeled by a quantum dot tunnel coupled to the helical edge. It may lead to significant inelastic backscattering within the edge because of the long electron dwelling time in the dot. We find the resulting correction to the perfect edge conductance. Gene...

knowledge of the Chinese in the eighth century" which still remains a puzzle. Carlo Castellani makes a detailed comparison of the investigations of Bonnet and Buffon on the problem of generation, concluding that Buffon's approach was the sounder. The last item, a full bibliography of the writings of Walter Pagel compiled by Marianne Winder reminds the reader that this selection of essays, so sk...

We present a new efficient algorithm for exact matching in encoded DNA sequences and on binary strings. Our algorithm combines a multi-pattern version of the Bndm algorithm and a simplified version of the Commentz-Walter algorithm. We performed also experimental comparisons with the most efficient algorithms presented in the literature. Experimental results show that the newly presented algorit...

Nonparametric or distribution-free charts can be useful in statistical process control when there is limited knowledge about the underlying process. In this paper a Shewhart-type chart is considered for the location, based on the Mann-Whitney statistic. The control limit calculations use Lugannani-Rice saddlepoint, Edgeworth and other approximation methods along with Monte Carlo estimation and ...

Mukherjee and Chakraborti 1 proposed a single distribution-free (nonparametric) Shewhart-type chart based on the Lepage 2 statistic for simultaneously monitoring both the location and the scale parameters of a continuous distribution when both of these parameters are unknown. In the present work, we consider a single distribution-free CUSUM chart, based on the Lepage 2 statistic, referred to as...