Results 21 to 30 of about 638,510 (300)

Thermoelastic Noise and Homogeneous Thermal Noise in Finite Sized Gravitational-Wave Test Masses [PDF]

open access: yes, 2000
An analysis is given of thermoelastic noise (thermal noise due to thermoelastic dissipation) in finite sized test masses of laser interferometer gravitational-wave detectors.
B. C. Barish   +7 more
core   +2 more sources

ROOT-MUSIC MEASUREMENTS OF TARGET ELEVATION ANGLES WITH ACCOUNT OF RADIO WAVE’S PHASE FRONT SPHERICITY [PDF]

open access: yesRadio Physics and Radio Astronomy, 2022
Subject and Purpose. The paper is an effectiveness study of the root-MUSIC technique as applied to elevation angle measurements of low-altitude radar targets over the sea, specifically with account of the radio waves’ phase front sphericity.
Yu. O. Pedenko
doaj   +1 more source

Invited Article: CO_2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions [PDF]

open access: yes, 2011
In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension ...
Barton, M. A.   +19 more
core   +2 more sources

Distinguishing coherent and thermal photon noise in a circuit QED system [PDF]

open access: yes, 2018
In the cavity-QED architecture, photon number fluctuations from residual cavity photons cause qubit dephasing due to the AC Stark effect. These unwanted photons originate from a variety of sources, such as thermal radiation, leftover measurement photons,
Campbell, Dan   +11 more
core   +2 more sources

Wireless Johnson Noise Thermometry for Passive Temperature Sensing

open access: yesIEEE Journal of Microwaves
Johnson noise thermometers (JNTs) are a promising primary thermometer technology for harsh environments, including nuclear plants, industrial agriculture, and space.
Jasmin Falconer   +2 more
doaj   +1 more source

Thermally Fluctuating Second-Order Viscous Hydrodynamics and Heavy-Ion Collisions

open access: yes, 2014
The fluctuation-dissipation theorem requires the presence of thermal noise in viscous fluids. The time and length scales of heavy ion collisions are small enough so that the thermal noise can have a measurable effect on observables.
Gale, C.   +4 more
core   +1 more source

Measurements of mechanical Q in levitated paramagnetic crystals [PDF]

open access: yes, 2000
Thermal noise from test masses, arising both from internal noise in the test mass material and from losses in the suspension wires and their attachments, is a significant factor limiting sensitivity of interferometric gravity-wave detectors.
Augst, S. J., Drever, R. W. P.
core   +1 more source

A 1.8-V 95.8-dB SNDR Incremental Delta-Sigma ADC With Analog Noise Reduction Techniques for Sensor ROIC

open access: yesIEEE Access
A delta-sigma modulator (DSM)-based incremental analog-to-digital converter (ADC) is proposed for use in the readout integrated circuit of low-power high-resolution sensors.
Juncheol Kim, Young-Chan Jang
doaj   +1 more source

Practical Considerations for Accuracy Evaluation in Sensor-Based Machine Learning and Deep Learning

open access: yesSensors, 2019
Accuracy evaluation in machine learning is based on the split of data into a training set and a test set. This critical step is applied to develop machine learning models including models based on sensor data.
Issam Hammad, Kamal El-Sankary
doaj   +1 more source

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