Results 281 to 290 of about 1,871,500 (313)

High resolution timing with low resolution clocks and microsecond resolution timer for Sun workstations

ACM SIGOPS Operating Systems Review, 1990
When tuning operating system and network code, profiling programs, analyzing message interarrival times, and accurately measuring device characteristics, a high resolution clock is often indispensable, as one cannot measure service time distributions without one.
Peter B. Danzig, Stephen W. Melvin
openaire   +1 more source

High resolution time-to-digital converters

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1992
Abstract High resolution TDC chips use active delays as time reference and flip-flops as comparators, instead of switched current sources and ADCs as implemented in analog designs. As a result, a straight encoding is obtained, allowing time binning down to 50 ps, taking advantage of the high accuracy of IC processes.
openaire   +1 more source

Detailed analysis of the TIMES and TIMES0 high-resolution MAS methods for high-resolution proton NMR

Journal of Magnetic Resonance, 2012
We analyze and compare the specifications of TIMES and TIMES(0) proton high-resolution NMR methods for solid-state samples. This comparison is performed in terms of resolution versus magic-angle spinning (MAS) spinning speed, ν(R), rf-field amplitude, ν(1), and tilt-angle for the effective rf-field, θ(p).
Xingyu, Lu, Olivier, Lafon, Julien, Trébosc, Aany Sofia Lilly, Thankamony, Yusuke, Nishiyama, Zhehong, Gan, P K, Madhu, Jean-Paul, Amoureux   +7 more
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Gamma ray spectroscopy at high energy and high time resolution at JET

Review of Scientific Instruments, 2008
In fusion plasmas gamma ray emission is caused by reactions of fast particles, such as fusion alpha particles, with impurities. Gamma ray spectroscopy at JET has provided valuable diagnostic information on fast fuel as well as fusion product ions. Improvements of these measurements are needed to fully exploit the flux increase provided by future high ...
M Tardocchi, L I Proverbio, G Gorini, G Grosso, M Locatelli, I N Chugonov, D B Gin, A E Shevelev, A Murari, V G Kiptily, B Syme, A M Fernandes, R C Pereira, J Sousa, JETEFDA Contributors cd   +14 more
openaire   +4 more sources

Time-Frequency Analysis in High-Resolution SAR Imagery

IEEE Transactions on Geoscience and Remote Sensing, 2011
In this paper, a time-frequency analysis (TFA) is proposed to derive the backscattering properties of each pixel in single-polarization synthetic aperture radar (SAR) images. At high resolution (HR), some backscattering variations which are linked to the scene geometry and the surface property occur during the radar acquisition. TFA permits to retrieve
Marc Spigai, Celine Tison, Jean-Claude Souyris   +2 more
openaire   +1 more source

Comparison of high resolution real time ultrasonography and high resolution computed tomography in an infant with spinal dysraphism

Neurosurgery, 1983
Abstract An infant with a lumbosacral spinal subcutaneous and intraspinal lipoma involving the conus medullaris was studied with computed tomography and high resolution real time ultrasonography to determine the extent and location of the disease before operation.
H E, James, W, Scheible, C, Kerber, S V, Hilton   +3 more
openaire   +2 more sources

High Resolution Digital Time Base

IEEE Transactions on Nuclear Science, 1979
A time base has been developed to supply general timing signals for the Cornell Electron Storage Ring, including beam bunch transfer triggers and beam detector triggers. The system consists of 8-bit counters and digital phase shifters of 8-bit resolution, under control of a data bus tied to the CESR control computer interface.
openaire   +1 more source

High resolution time-of-flight spectrometry

Physica Scripta, 1997
Resolution of time-of-flight spectrometers is limited by the temporal distribution of analyzed ions at the detector. The major sources of this temporal distribution are the initial temporal, spatial, and velocity distributions of the ions. Details of how these initial distributions affect resolution is discussed, along with techniques to improve ...
openaire   +1 more source

A Radio Spectrograph with High Sensitivity and High Time Resolution

Nature, 1964
WORK has recently been done on the fine structure in time of solar radio emission. This fine structure is characterized by short-lived variations of the intensity; they may have either small or large intensities1.
openaire   +1 more source

Deep Dual-Resolution Networks for Real-Time and Accurate Semantic Segmentation of Traffic Scenes

IEEE Transactions on Intelligent Transportation Systems, 2023
Huihui Pan, Yuanduo Hong, Weichao Sun
exaly