Results 11 to 20 of about 828,607 (304)

Neural Network Sliding Mode Control of Intelligent Vehicle Longitudinal Dynamics

open access: yesIEEE Access, 2019
Longitudinal dynamics control is the basis for autonomous driving of intelligent vehicles, which have great significance to the development of intelligent transportation system (ITS).
Shaohua Wang   +3 more
doaj   +3 more sources

Understanding the patterns of mode switching in longitudinal studies

open access: yesSurvey Research Methods, 2021
Using mixed-mode data collection is becoming a mainstream way of conducting longitudinal surveys. However, interviewing the same units in a mixed-mode longitudinal design can lead to respondents switching between modes over time.
Alexandru Cernat, Joseph W. Sakshaug
doaj   +1 more source

Theoretical analysis of the longitudinal mode behavior due to mode competition in bulk semiconductor lasers

open access: yesAIP Advances, 2023
The following typical longitudinal mode phenomena occur in bulk semiconductor lasers: single-mode or multimode operation for longitudinal modes, longitudinal mode suppression except for a dominant mode, asymmetry of the spectral profile of longitudinal ...
Toshiaki Mizukami
doaj   +1 more source

Bidirectional Single Longitudinal Mode Er-Doped Fiber Ring Laser Using a Bandpass Filter and Cascaded Fiber Ring Filter

open access: yesIEEE Access, 2023
Bidirectional single longitudinal mode fiber ring laser have advantages and potential in optical sensing, especially angular velocity sensing. The current methods for implementing bidirectional single longitudinal mode fiber ring laser cannot ensure ...
Bowen Xu   +3 more
doaj   +1 more source

Diode-Pumped Single-Longitudinal-Mode Pr3+:YLF Laser Based on Combined Fabry–Perot Etalons at 522.67 nm

open access: yesPhotonics, 2023
We create a rate equation theoretical model of a continuous-wave end-pumped Pr3+:YLF SLM laser that characterizes the output properties of a single-longitudinal-mode (SLM) green laser. After inserting two Fabry–Perot (F–P) etalons with thicknesses of 0.3
Weicheng Dai   +5 more
doaj   +1 more source

An Ytterbium-Doped Narrow-Bandwidth Randomly Distributed Feedback Laser Emitting at a Wavelength of 976 nm

open access: yesPhotonics, 2023
All-fiber, polarization maintaining, narrow-bandwidth, Yb-doped fiber lasers with randomly distributed feedback operated near 976 nm were realized for the first time.
Danila A. Davydov   +9 more
doaj   +1 more source

Phonon dispersion and low energy anomaly in CaC$_6$ [PDF]

open access: yes, 2010
We report measurements of phonon dispersion in CaC$_6$ using inelastic X-ray and neutron scattering. We find good overall agreement, particularly in the 50 meV energy region, between experimental data and first-principles density-functional-theory ...
Alessandra Lanzara   +14 more
core   +5 more sources

The critical location for thermal radiation disaster in personnel evacuation of rack railway tunnel fires under the large longitudinal slope

open access: yesCase Studies in Thermal Engineering, 2023
Thermal radiation has a great effect on personnel evacuation when the train is on fire in the rack railway tunnels. However, the influence of the longitudinal slope, especially the large longitudinal slope, is not clear.
Pai Xu   +5 more
doaj   +1 more source

Dual Longitudinal Mode Nd:YAG Laser [PDF]

open access: yesAdvanced Solid State Lasers, 1992
We have obtained dual-longitudinal-mode operation of a Q-switched Nd:YAG laser by simultaneous injection-seeding at two frequencies to produce pulses with modulation frequency discretely tunable from 185 MHz to greater than 17 GHz.
Raymond, T. D.   +2 more
openaire   +1 more source

Frequency selectivity in laterally coupled semiconductor laser arrays [PDF]

open access: yes, 1985
A longitudinal-mode analysis of a system of laterally coupled waveguided resonators is presented in the coupled-mode approximation. It is shown that variations in the mirror reflectivity of the individual channels result in coupling between the ...
Lang, R., Salzman, J., Yariv, A.
core   +1 more source

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