Results 1 to 10 of about 6,531 (191)

Micro-CT Study of Mongolian Gerbil Humeral Bone After Prolonged Spaceflight Based on a New Algorithm for Delimitation of Long-Bone Regions

open access: yesFrontiers in Physiology, 2021
The Mongolian gerbil displays unique physiological and anatomical features that make this species an attractive object for biological experiments in space.
Yuri S. Krivonosov   +8 more
doaj   +1 more source

Characterization of Laser Frequency Stability by Using Phase-Sensitive Optical Time-Domain Reflectometry

open access: yesPhotonics, 2023
A new method to measure laser phase noise and frequency stability based on the phase-sensitive optical time-domain reflectometry is proposed. In this method, the laser under test is utilized in a phase-sensitive optical time-domain reflectometer, which ...
Danil M. Bengalskii   +5 more
doaj   +1 more source

Lake Altimetry Using Long Coherent Integration Carrier Phase Measurements from Airborne GNSS Reflectometry

open access: yesRemote Sensing, 2023
Today, land and ocean observations are crucial for monitoring climate change. The method of GNSS reflectometry is an opportunistic way to provide low-cost observations of many geophysical parameters.
Nolan Varais   +3 more
doaj   +1 more source

Low-Cost BDS Reflectometry for Real-Time Water Surface Retrieval

open access: yesRemote Sensing, 2023
The official launch of the Chinese BeiDou Navigation Satellite System with global coverage (BDS-3) presents significant opportunities for various applications, including precision agriculture and autonomous driving, among others.
Ken Deng   +4 more
doaj   +1 more source

External Modulation Optical Coherent Domain Reflectometry with Long Measurement Range

open access: yesSensors, 2021
Optical coherent domain reflectometry (OCDR) can achieve a high spatial resolution that is independent of the bandwidth of the receiver, but the measurement range is usually very limited.
Yinghong Xue   +2 more
doaj   +1 more source

GNSS-IR Measurements of Inter Annual Sea Level Variations in Thule, Greenland from 2008–2019

open access: yesRemote Sensing, 2021
Studies of global sea level often exclude Tide Gauges (TGs) in glaciated regions due to vertical land movement. Recent studies show that geodetic GNSS stations can be used to estimate sea level by taking advantage of the reflections from the ocean ...
Trine S. Dahl-Jensen   +4 more
doaj   +1 more source

Mobile Surface Reflectometry [PDF]

open access: yesComputer Graphics Forum, 2014
AbstractWe present two novel mobile reflectometry approaches for acquiring detailed spatially varying isotropic surface reflectance and mesostructure of a planar material sample using commodity mobile devices. The first approach relies on the integrated camera and flash pair present on typical mobile devices to support free‐form handheld acquisition of
Riviere, J, Peers, P, Ghosh, A
openaire   +3 more sources

A New Insight on the “S” Shape Pattern of Soft Faults in Time-Domain Reflectometry

open access: yesSensors, 2023
This paper proposes a new interpretation of the commonly observed, very specific, time-domain response associated with a soft defect in an electrical line under test using time-domain reflectometry.
Florent Loete
doaj   +1 more source

Cramer–Rao Lower Bound for SoOp-R-Based Root-Zone Soil Moisture Remote Sensing

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Signals of opportunity (SoOp) reflectometry (SoOp-R) is a maturing field for geophysical remote sensing as evidenced by the growing number of airborne and spaceborne experiments.
Dylan Ray Boyd   +7 more
doaj   +1 more source

Correlation reflectometry at TEXTOR [PDF]

open access: yesReview of Scientific Instruments, 2010
In high temperature fusion plasmas the transport of energy and particles is commonly believed to be driven by turbulence. Turbulence quantities as correlation length and decorrelation time are important for the confinement properties of a plasma. Besides other diagnostics, correlation reflectometry has proven to be a suitable tool for the measurement ...
Krämer-Flecken, A.   +3 more
openaire   +3 more sources

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