Results 1 to 10 of about 53,100 (266)

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

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

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

A Spectroscopic Reflectance-Based Low-Cost Thickness Measurement System for Thin Films: Development and Testing

open access: yesSensors, 2023
The requirement for alternatives in roll-to-roll (R2R) processing to expand thin film inspection in wider substrates at lower costs and reduced dimensions, and the need to enable newer control feedback options for these types of processes, represents an ...
Néstor Eduardo Sánchez-Arriaga   +4 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

Comparison and Synergy of BPSK and BOC Modulations in GNSS Reflectometry

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Signals from global navigation satellite systems (GNSSs) have been advocated as opportunities for remote sensing of the Earth. In the multi-GNSS era, signals from different constellation, at different frequency, and under different modulation are ...
Jyh-Ching Juang   +2 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

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

Remote capacitive sensing in two-dimension quantum-dot arrays [PDF]

open access: yes, 2020
We investigate gate-defined quantum dots in silicon on insulator nanowire field-effect transistors fabricated using a foundry-compatible fully-depleted silicon-on-insulator (FD-SOI) process.
Duan, Jingyu   +5 more
core   +2 more sources

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