We demonstrate error-free wavelength conversion of 28 GBaud 16-QAM single polarization (112 Gb/s) signals based on four-wave mixing in a dispersion engineered silicon nanowire (SNW). Wavelength conversion covering the entire C-band is achieved using a single pump. We characterize the performance of the wavelength converter subsystem through the electrical signal to noise ratio penalty as well a...

Many voice conversion algorithms are based on frame-wise mapping from source features into target features. This ignores the inherent temporal continuity that is present in speech and can degrade the subjective quality. In this paper, we propose to optimize the speech feature sequence after a frame-based conversion algorithm has been applied. In particular, we select the sequence of speech feat...

Considering that preprocessing is an important phase in linear programming, it should be systematically more incorporated in semidefinite programming solvers. The conversion method proposed by the authors (SIAM Journal on Optimization, vol. 11, pp. 647–674, 2000, and Mathematical Programming, Series B, vol. 95, pp. 303–327, 2003) is a preprocessing of sparse semidefinite programs based on matri...

The paper is based on the analytical considerations established by Abate [1] and Taub-Schilling [2] notions concerning minimization of total quantization noise and maximization of dynamic range DR of adaptive delta modulations (ADM). Both the analytical and simulation dependences of DR in the function of maximum sampling frequency fs max or maximum quantization step size ∆max have been found by...

BACKGROUND In 1995 - 1996, we switched from a once-daily Sandimmune dose to a twice-daily dose regimen of Neoral. Concurrent with the switch we changed our target trough level from 100 microg/l at 24 hours to the generally accepted 12-hour level of 150 microg/l. We performed a retrospective cohort study to assess cyclosporine toxicity following this switch and to identify risk factors for nephr...

objective: the use of hema as a biocompatible material in dentin bonding systems and its potential for clinical applications has been well established. excess water can affect conversion of bonding resins. the aim of this study was to survey the effect of water on the degree of conversion of hema by fourier transform infra-red spectroscopy (ft-ir). materials and methods: in this experimental st...

We analyze multiple casts as an easy and non-technical approach to overcome some of the open questions and risks of online voting. The mechanism of multiple casts can be added to almost all existing online voting systems. Nevertheless, there are also some disadvantages, for instance the validity of a timestamp, which are discussed in the paper as well.

BACKGROUND Nightly extended hours hemodialysis may improve left ventricular hypertrophy and function and endothelial function but presents problems of sustainability and increased cost. The effect of alternate nightly home hemodialysis (NHD) on cardiovascular structure and function is not known. METHODS Sixty-three patients on standard hemodialysis (SHD: 3.5-6 hours/session, 3-5 sessions week...

Synthetic genetic analysis was improved by eliminating leaky expression of the HIS3 reporter and gene conversion between the HIS3 reporter and his3Delta1. Leaky expression was eliminated using 3-aminotriazole and gene conversion was eliminated by using the Schizosaccharomyces pombe his5+ gene, resulting in a 5- to 10-fold improvement in the efficiency of SGA.