Results 31 to 40 of about 5,395 (220)

The most brilliant “Failure” in science – The Michelson-Morley experiment

open access: yesKerala Journal of Ophthalmology
The Michelson–Morley experiment yielded a null result and was initially regarded as a failure by its investigators, Albert Michelson and Edward Morley.
Biju Raju, N. S. D. Raju, R. Jyothi
doaj   +1 more source

Strain Measurement by Using Phase Modulated Fiber Optic Sensors Technology

open access: yesDiyala Journal of Engineering Sciences, 2015
This paper deals with simulation using (MATLAB) of optical fiber strain sensor employing the phase modulated technique in order to design a model for the Michelson interferometer, this paper also deals with the implementation of interferometer technique
Riadh Adnan Kadhim
doaj   +1 more source

Michelson interferometer for phase shifting interferometry with a liquid crystal retarder

open access: yesResults in Optics, 2021
We propose an interferometric system to measure phase objects using electronic phase shifting techniques. The experimental setup is based on a polarization Michelson type interferometer, where a liquid crystal retarder is placed at the entrance pupil as ...
Yanely B. Machuca-Bautista   +4 more
doaj   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

open access: yesHigh Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang   +4 more
wiley   +1 more source

Reprocessable Vitrimers From Post‐Consumer Polyolefin Blends: Elucidating Phase‐Selective Dynamic Networks

open access: yesMacromolecular Rapid Communications, Volume 47, Issue 17, 4 September 2026.
Reactive melt extrusion utilizing nitroxide‐mediated silyl ether chemistry transforms post‐consumer high‐density polyethylene and polypropylene blends into robust vitrimers. Featuring highly phase‐selective crosslinking, these upcycled materials combine thermoset‐like dimensional stability at elevated temperatures with dynamic melt‐reprocessability ...
Subhaprad Ash   +3 more
wiley   +1 more source

Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling

open access: yesEarth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region. This Q6DW event persists across multiple data sets throughout the middle‐to‐upper thermosphere and the F‐region ionosphere, including GOLD disk ...
Oluwafisayo P. Owolabi   +2 more
wiley   +1 more source

Long-term intercomparison of MIPAS additional species ClONO2, N2O5, CFC-11, and CFC-12 with MIPAS-B measurements

open access: yesAnnals of Geophysics, 2014
The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) aboard the environmental satellite ENVISAT is a limb-viewing Fourier-transform emission spectrometer working in the mid-infrared spectral region between 685 cm-1 and 2410 cm-1 [...]
Gerald Wetzel   +6 more
doaj   +1 more source

STUDY OF THE EFFECT OF ENDFACES POLISHING ANGLE FOR ANISOTROPIC WAVEGUIDES ON STATE CONVERSION OF LIGHT POLARIZATION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
The paper deals with optical scheme for research of polarization state transformation at the junction of anisotropic waveguides. It consists of a light source, polarization controller, multifunctional integrated optical scheme (MIOS), single-mode fiber ...
V. A. Shulepov   +2 more
doaj   +1 more source

The Impacts of Zonal and Meridional Winds on the Observed Occurrence Rate of Equatorial Plasma Bubbles

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Post‐sunset equatorial plasma bubble (EPB) formation is believe to be influenced by factors including thermospheric neutral winds. This study characterizes pre‐sunset neutral winds observed by ICON on EPB occurrences observed by GOLD over the east Atlantic.
V. J. Adkins   +2 more
wiley   +1 more source

Probing Steady‐State Carrier Properties and Charge Transport in Covalent Organic Framework by Frequency‐Domain Terahertz Spectroscopy

open access: yesAngewandte Chemie, Volume 138, Issue 25, 15 June 2026.
This work reports a combined frequency‐domain and time‐domain terahertz (THz) spectroscopic approach to elucidate intrinsic carrier properties and transport mechanisms in framework materials over the extended 0.5–20 THz region. Subtle structural and chemical variations are shown to strongly influence THz charge‐transport behavior across the far ...
Satyapriya Nath   +13 more
wiley   +2 more sources

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