Results 21 to 30 of about 166,611,752 (300)

A Single-Shot Non-Line-of-Sight Range-Finder

open access: yesSensors, 2019
The ability to locate a target around a corner is crucial in situations where it is impractical or unsafe to physically move around the obstruction. However, current techniques are limited to long acquisition times as they rely on single-photon counting ...
James Brooks, Daniele Faccio
doaj   +1 more source

Performance of Thermally Modified Spruce Timber in Outdoor Above-Ground Conditions: Checking, Dynamic Stiffness and Static Bending Properties

open access: yesApplied Sciences, 2020
Previous studies have shown that thermally modified wood (TMW) performs well in outdoor, above-ground conditions in terms of resistance to wood-decaying fungi.
Joran van Blokland   +2 more
doaj   +1 more source

Picosecond precision time‐of‐flight digital converter

open access: yesElectronics Letters, 2017
Time‐of‐flight (TOF) digital converter implemented in field programmable gate array has been introduced. The operation is based on train of pulses transmission and counting received pulses in bank of counters.
G. Wieczorek, W. Oliwa
doaj   +1 more source

Flight test: Supporting the investigation of factors affecting loss of control of light aircraft [PDF]

open access: yes, 2009
A quarter of all fatal General Aviation accidents in the UK during the period 1980 to 2006 involved Loss of Control (LoC) in Visual Meteorological Conditions (VMC).
Gratton, G.B.   +5 more
core   +5 more sources

A TIME-OF-FLIGHT DETECTOR FOR CDF

open access: yesInternational Journal of Modern Physics A, 2001
A Time-of-Flight detector (TOF), with a technique based on plastic scintillators and finemesh photomultipliers, has been added to the CDF-II experiment. The main physics motivation is to improve neutral B meson flavor determination by K± identification.
GROZIS C   +45 more
openaire   +3 more sources

Neutron Imaging at LANSCE—From Cold to Ultrafast

open access: yesJournal of Imaging, 2018
In recent years, neutron radiography and tomography have been applied at different beam lines at Los Alamos Neutron Science Center (LANSCE), covering a very wide neutron energy range. The field of energy-resolved neutron imaging with epi-thermal neutrons,
Ronald O. Nelson   +26 more
doaj   +1 more source

An Elevation-Coupled Multivariate Regression Model for GNSS-Based FY-4A Precipitable Water Vapor

open access: yesRemote Sensing
The measurement of atmospheric moisture content is essential for the monitoring of severe weather events and hydrological studies. This paper proposes a multivariate linear regression correction model that integrates elevation data with Global Navigation
Yaping Gao   +5 more
doaj   +1 more source

Time-of-Flight Neutron Imaging on IMAT@ISIS: A New User Facility for Materials Science

open access: yesJournal of Imaging, 2018
The cold neutron imaging and diffraction instrument IMAT at the second target station of the pulsed neutron source ISIS is currently being commissioned and prepared for user operation. IMAT will enable white-beam neutron radiography and tomography.
Winfried Kockelmann   +32 more
doaj   +1 more source

Time-of-flight fission fragment spectrometer of the MAVR facility

open access: yesEurasian Journal of Physics and Functional Materials, 2021
A time-of-flight system was created to register the reaction products and perform correlation measurements on a high-resolution magnetic analyzer (MAVR).
D. .. Aznabayev   +9 more
doaj   +1 more source

A Distributed Cooperative Guidance Law with Prescribed-Time Consensus Performance

open access: yesAerospace
This paper proposes a prescribed-time convergent distributed cooperative guidance law that enables aircraft to reach the same location in a cooperative manner in both undirected and directed communication topologies.
Chao Ou   +3 more
doaj   +1 more source

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