Detection of critical safety events on freeways in clear and rainy weather using SHRP2 naturalistic driving data: Parametric and non-parametric techniques
Sign Up to like & getrecommendations! Published in 2019 at "Safety Science"
DOI: 10.1016/j.ssci.2019.01.007
Abstract: Abstract A better understanding of what happened before and during a crash event could lead to development of countermeasures that reduce crash risk on freeways. This paper focused on detecting near-crashes on freeways by comparing… read more here.
Keywords: non parametric; parametric non; parametric techniques; parametric ... See more keywords
High-energy single-longitudinal-mode mid-infrared optical parametric amplifier seeded with sheet optical parametric oscillator
Sign Up to like & getrecommendations! Published in 2021 at "AIP Advances"
DOI: 10.1063/5.0049754
Abstract: Mid-infrared (MIR) radiation is essential for remote gas sensing, ranging, and lidar applications, where high pulse energy and narrow linewidth are the keys to the high sensitivity over long distance. However, complex optical and electronic… read more here.
Keywords: optical parametric; seed; energy; parametric ... See more keywords
Pulsed optical parametric amplification based on photonic crystal fibres
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2016.1237684
Abstract: Abstract In this paper, we simulate pulsed one-pump fibre optical parametric amplifiers (1-P FOPAs) based on photonic crystal fibres in telecommunication region. At first, a PCF is designed such that its zero-dispersion wavelength is located… read more here.
Keywords: optical parametric; crystal fibres; parametric amplification; parametric ... See more keywords
A flexible parametric accelerated failure time model and the extension to time-dependent acceleration factors.
Sign Up to like & getrecommendations! Published in 2022 at "Biostatistics"
DOI: 10.1093/biostatistics/kxac009
Abstract: Accelerated failure time (AFT) models are used widely in medical research, though to a much lesser extent than proportional hazards models. In an AFT model, the effect of covariates act to accelerate or decelerate the… read more here.
Keywords: accelerated failure; time; time dependent; failure time ... See more keywords
Sub-three-cycle pulses at 2 µm from a degenerate optical parametric amplifier.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.447295
Abstract: In this work we present a compact two-stage optical parametric amplifier (OPA) pumped at degeneracy by the fundamental of a Yb:KGW laser system. The output pulses span from 1.7 to 2.5 µm (120-176 THz) and are… read more here.
Keywords: sub three; parametric amplifier; three cycle; parametric ... See more keywords
Depletion-limited Kerr solitons in singly resonant optical parametric oscillators.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.483871
Abstract: We analyze the impact of pump depletion in the generation of parametrically driven Kerr cavity solitons in a degenerate optical parametric oscillator. Using variational methods, we derive an analytical expression that describes the soliton existence… read more here.
Keywords: solitons singly; limited kerr; depletion limited; parametric ... See more keywords