Results 51 to 60 of about 172,462 (196)

Glottal Source Cepstrum Coefficients Applied to NIST SRE 2010 [PDF]

, 2010
Through the present paper, a novel feature set for speaker recognition based on glottal estimate information is presented. An iterative algorithm is used to derive the vocal tract and glottal source estimations from speech signal.
Martínez Olalla, Rafael, Mazaira Fernández, Luis Miguel, Gómez Vilda, Pedro, Muñoz, Cristina, Álvarez Marquina, Agustin   +4 more
core   +1 more source

Author Correction: Unifying scrambling, thermalization and entanglement through measurement of fidelity out-of-time-order correlators in the Dicke model

Nature Communications, 2019
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
R. J. Lewis-Swan, A. Safavi-Naini, J. J. Bollinger, A. M. Rey   +3 more
doaj   +1 more source

Length and dimensional measurements at NIST

Journal of Research of the National Institute of Standards and Technology, 2001
This paper discusses the past, present, and future of length and dimensional measurements at NIST. It covers the evolution of the SI unit of length through its three definitions and the evolution of NBS-NIST dimensional measurement from early linescales and gage blocks to a future of atom-based dimensional standards.
openaire   +2 more sources

A close-up view of slate from Slatington, Pennsylvania, part of the NIST stone wall. [PDF]

, 2017
A view of part of the NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top.
National Institute of Standards and Technology and Technology
core  

Fingerprint Scanner Angle Manipulation Device [PDF]

, 2008
The Fingerprint Scanner Angle Manipulation Device is a tool designed by the National Institute of Standards and Technology (NIST) in 2008 to test the usability of U.S.
NIST
core   +1 more source

Inconclusive decisions and error rates in forensic science

Forensic Science International: Synergy
In recent years, there has been discussion and controversy relating to the treatment of inconclusive decisions in forensic feature comparison disciplines when considering the reliability of examination methods and results.
H. Swofford, S. Lund, H. Iyer, J. Butler, J. Soons, R. Thompson, V. Desiderio, J.P. Jones, R. Ramotowski   +8 more
doaj   +1 more source

Embedding a Rydberg Atom-Based Sensor Into an Antenna for Phase and Amplitude Detection of Radio-Frequency Fields and Modulated Signals

IEEE Access, 2019
We demonstrate a Rydberg atom-based sensor embedded in a parallel-plate waveguide (PPWG) for amplitude and phase detection of a radio-frequency (RF) electric field. This embedded atomic sensor is also capable of receiving modulated communications signals.
Matthew T. Simons, Abdulaziz H. Haddab, Joshua A. Gordon, David Novotny, Christopher L. Holloway   +4 more
doaj   +1 more source

Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes

IEEE Photonics Journal, 2011
Fluctuations of the optical power incident on a photodiode can be converted into phase fluctuations of the resulting electronic signal due to nonlinear saturation in the semiconductor.
J. Taylor, S. Datta, A. Hati, C. Nelson, F. Quinlan, A. Joshi, S. Diddams   +6 more
doaj   +1 more source

Collective atomic scattering and motional effects in a dense coherent medium

Nature Communications, 2016
Light scattering from a dense coherent medium is determined by the interplay of dispersive and radiative dipole–dipole interactions. Here, the authors control the motional effects that obscure the coherence of scattered light and study collective ...
S. L. Bromley, B. Zhu, M. Bishof, X. Zhang, T. Bothwell, J. Schachenmayer, T. L. Nicholson, R. Kaiser, S. F. Yelin, M. D. Lukin, A. M. Rey, J. Ye   +11 more
doaj   +1 more source

NIST time and frequency bulletin

, 2021
The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.
openaire   +1 more source