Spin-orbit coupled superconductors are interesting candidates for realizing topological and potentially nonAbelian states with Majorana fermions. We argue that time-reversal broken spin-orbit coupled superconductors generically can be characterized as having subgap states that are bound to localized nonmagnetic impurities. Such bound states, which are referred to as the Shiba states, can be det...

This paper proposes an approach to recognize English words corresponding to digits Zero to Nine spoken in an isolated way by different male and female speakers. A set of features consisting of a combination of Mel Frequency Cepstral Coefficients (MFCC), Linear Predictive Coding (LPC), Zero Crossing Rate (ZCR), and Short Time Energy (STE) of the audio signal, is used to generate a 63-element fea...

This paper presents new Speaker Identification and Speaker Verification systems based on the use of new feature vectors extracted from the speech signal. The proposed structure combine between the most successful Mel Frequency Cepstral Coefficients and new features which are the Short Time Zero Crossing Rate of the signal. A comparison between speaker recognition systems based on Gaussian mixtu...

The interpolation techniques for the time-of-flight estimation have been under study. The ToF estimation was done using the direct correlation technique of the sampled signal. More accurate estimation was done using interpolation between the samples. Three interpolation techniques for discrete direct correlation are discussed: linear interpolation of zero crossing, imaginary part of direct corr...

This paper discusses a method to search quickly through broadcast audio data to detect and locate known sounds using reference templates, based on the active search algorithm and histogram modeling of zero-crossing features. Active search reduces the number of candidate matches between reference and test template by up to 36 times compared to exhaustive search, while still remaining optimal. Co...

For the dynamic pitchfork bifurcation in the presence of white noise, the statistics of the last time at zero are calculated as a function of the noise level, ǫ, and the rate of change of the parameter, μ. The threshold crossing problem used, for example, to model the firing of a single cortical neuron is considered, concentrating on quantities that may be experimentally measurable but have so ...

Abstract. This paper describes a new technique for the demodulation of Sagnac fiber optic gyroscopes, based on the zero-crossing technique. The technique uses a digital approach with a quasi-synchronous clock, which allows for the implementation of very high resolution and low cost gyroscope demodulation circuits. The proposed demodulation circuit was tested in laboratory, using a emulated gyro...

Diffusion tensor imaging (DTI) MRI is a noninvasive imaging method of the cerebral tissues whose fibers directions are not evaluated correctly in the regions of the crossing fibers. For the same reason the high angular resolution diffusion images (HARDI) are used for estimation of the fiber direction in each voxel. One of the main methods to specify the direction of fibers is usage of the spher...

This paper presents a low-complexity real-time single-tone phase and frequency estimation technique based on zero-crossing detection and linear regression. The proposed zerocrossing phase and frequency estimator fills a gap between lowcomplexity phase locked loop estimation and high-performance maximum likelihood estimation. Similar to a phase locked loop, the zero-crossing phase and frequency ...

In 1971 a “missing memristor” was proposed by a circuit theorist named Leon Chua as a 4 fundamental passive circuit element defined by a non-linear relationship between electric charge and magnetic flux linkage. In 2008 a research group from Hewlett-Packard led by Stan Williams claimed credit for finding this “missing memristor” based on the observation of a zero-crossing hysteresis effect. I r...