Results 51 to 60 of about 508,852 (195)

Investing In People: Job Accommodation Situations and Solutions [PDF]

open access: yes, 2005
[Excerpt] When thinking about accommodations, the focus should not be on the person’s disability but rather on essential job tasks and the physical functions necessary to complete them.
Office of Disability Employment Policy
core   +1 more source

Statistical framework for estimating GNSS bias

open access: yes, 2015
We present a statistical framework for estimating global navigation satellite system (GNSS) non-ionospheric differential time delay bias. The biases are estimated by examining differences of measured line integrated electron densities (TEC) that are ...
Coster, Anthea J.   +4 more
core   +2 more sources

A THz Receiver with Novel Features and Functionality [PDF]

open access: yesSensors, 2018
The presented THz receiver is based on an antenna coupled titanium micro-bolometer. A new geometrical design improves the robustness and extends the lifetime of the sensor. A study of sensor lifetime using different biasing currents is presented. The lifetime was verified by several tests and over 1000 operating hours. A new micro-bolometer sensitivity
Aleksander Sešek   +4 more
openaire   +4 more sources

Constraints for the Martian Crustal Structure From Rayleigh Waves Ellipticity of Large Seismic Events

open access: yesGeophysical Research Letters, 2023
For the first time, we measured the ellipticity of direct Rayleigh waves at intermediate periods (15–35 s) on Mars using the recordings of three large seismic Martian events, including S1222a, the largest event recorded by the InSight mission.
Sebastián Carrasco   +9 more
doaj   +1 more source

Deep learning for quality control of receiver functions

open access: yesFrontiers in Earth Science, 2022
Receiver function has been routinely used for studying the discontinuity structure in the crust and upper mantle. The manual quality control of receiver functions, which plays a key role in high-quality data selection and accurate structural imaging, has
Chang Gong   +7 more
doaj   +1 more source

Per-antenna power constrained MIMO transceivers optimized for BER [PDF]

open access: yes, 2009
This paper considers the linear transceiver optimization problem for multi-carrier multiple-input multiple-output (MIMO) channels with per-antenna power constraints.
Vaidyanathan, P. P., Weng, Ching-Chih
core   +2 more sources

Crustal Structure in Southeastern Texas From Joint Inversion of Ambient Seismic Noise and P to S Receiver Functions

open access: yesGeochemistry, Geophysics, Geosystems, 2020
The detection and classification of earthquakes in regions previously considered aseismic has led to significant advances in our understanding of anthropogenically induced earthquakes in productive basins. The Eagle Ford of southeastern Texas is one such
R. W. Porritt   +4 more
doaj   +1 more source

Slab pileup in the mantle transition zone and the 30 May 2015 Chichi‐jima earthquake

open access: yesGeophysical Research Letters, 2016
The 30 May 2015 Chichi‐jima M8 earthquake is one of the largest deep focus earthquakes ever recorded and its depth of 682 km puts it near the base of the mantle transition zone.
Robert W. Porritt, Shoichi Yoshioka
doaj   +1 more source

Seismic, Receiver Function Technique

open access: yes, 2011
Receiver function. Response of the Earth’s structure below seismic stations to incident teleseismic waves. Seismic discontinuities in the Earth’s crust or upper mantle cause waves from distant earthquakes to be converted from P to S waves or vice versa or to be multiply reflected between discontinuities before arriving the stations.
Kind, R., Yuan, X.
openaire   +6 more sources

Weak, Vertically Stronger Main Himalayan Thrust in the India‐Asia Collision

open access: yesGeophysical Research Letters
Megathrusts at convergent plate boundaries generate the largest and some of the most hazardous earthquakes on Earth. However, their physical properties, including those influencing fault slip accumulation and release and earthquake‐related surface ...
Shaoyang Li   +5 more
doaj   +1 more source

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