Traditionally, circuit designers have adopted analog techniques to overcome comparator offset in flash converters. These schemes have an adverse effect on area and power consumption and, more seriously, do not scale easily to low-voltage processes. We describe a digital technique which removes the accuracy constraints from the comparators. With no analog matching requirements, the comparators c...

The Fast Fourier Transform (FFT) requires high Computational power, ability to choose the algorithm and architecture to implement it. This project explains the realization of a 3/6 FFT processor based on a pipeline architecture. The implementation has been made on a Field Programmable Gate Array (FPGA) as a way of obtaining high performance at economical price and a short time of realization. F...

Involvement of T6 pili in biofilm formation by serotype M6 Streptococcus 1 pyogenes 2 3 4 Keiji Richard Kimura , Masanobu Nakata , Tomoko Sumitomo, Bernd Kreikemeyer, 5 Andreas Podbielski, Yutaka Terao, and Shigetada Kawabata* 6 7 8 Department of Oral and Molecular Microbiology, Osaka University Graduate School of 9 Dentistry, 1-8, Yamadaoka, Suita, Osaka, 565-0871, Japan. 10 Institute of Medic...

We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients in B → K * ℓ + ℓ − , using 386 ×10 6 B ¯ B pairs that were collected on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider. We also present the first evidence of the decay B − → τ − ¯ ντ , using 414 fb −1 of data.

We are interested in stationary “fluid” random evolutions with independent increments. Under some mild assumptions, we show they are solutions of a stochastic differential equation (SDE). There are situations where these evolutions are not described by flows of diffeomorphisms, but by coalescing flows or by flows of probability kernels. In an intermediate phase, for which there exists a coalesc...