Results 71 to 80 of about 20,391 (185)

Chaotic chirped-pulse oscillators

Optics Express, 2013
We present results of experimental investigation of the chaotic and quasi-periodic regime in the chirped-pulsed (dissipative soliton) Cr:ZnS and Cr:ZnSe mid-IR oscillators with significant third-order dispersion. The instability develops when the spectrum edge approaches resonance with a linear wave either due to power increase or by dispersion ...
Sorokin, Evgeni, Tolstik, Nikolai, Kalashnikov, Vladimir, Sorokina, Irina T   +3 more
openaire   +3 more sources

Macroscopic attosecond chirp compensation

Optics Express, 2019
We numerically study the physical mechanism of the chirp compensation of the attosecond XUV pulses obtained by high-order harmonic generation. We show by detailed analysis that the macroscopic aspects of fundamental pulse propagation are essential in the formation and temporal-spectral-spatial properties of the attosecond pulses.
Katalin Kovács, Valer Tosa
openaire   +2 more sources

Using CHIRPS Dataset to Assess Wet and Dry Conditions along the Semiarid Central-Western Argentina

Advances in Meteorology, 2019
The Climate Hazards group Infrared Precipitation with Stations (CHIRPS) dataset was conceived as a tool for monitoring drought and environmental change over land. Recent validation efforts along South America have assessed its suitability for reproducing
Juan A. Rivera, Sofía Hinrichs, Georgina Marianetti   +2 more
doaj   +1 more source

Validando productos de precipitación diaria estimados por sensoramiento remoto con estaciones pluviométricas en la cuenca Vilcanota, Perú

Tecnología y ciencias del agua
La precipitación representa uno de los elementos más importantes dentro del ciclo del agua para la representación de la oferta hídrica en cuencas hidrográficas.
Eber Risco, Waldo Lavado, Pedro Rau, Thomas Condom   +3 more
doaj   +1 more source

Fourier Transforms of Finite Chirps

EURASIP Journal on Advances in Signal Processing, 2006
Chirps arise in many signal processing applications. While chirps have been extensively studied as functions over both the real line and the integers, less attention has been paid to the study of chirps over finite groups.
Fickus Matthew, Casazza Peter G
doaj   +1 more source

Evaluation of Satellite-Based Rainfall Estimates in the Lower Mekong River Basin (Southeast Asia)

Remote Sensing, 2019
Satellite-based precipitation is an essential tool for regional water resource applications that requires frequent observations of meteorological forcing, particularly in areas that have sparse rain gauge networks.
Chelsea Dandridge, Venkat Lakshmi, John Bolten, Raghavan Srinivasan   +3 more
doaj   +1 more source

Wavelet Analysis and Chirps

Applied and Computational Harmonic Analysis, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Meyer, Yves, Xu, Hong
openaire   +1 more source

Spatio-Temporal Evaluation of MSWEP, CHIRPS and ERA5-Land Reveals Regional-Specific Responses Across Complex Topography in Bolivia

Atmosphere
Reliable precipitation estimates are critical for climate analysis and ecosystem management in regions with complex topography and limited ground-based observations.
Álvaro Salazar, Daniel M. Larrea-Alcázar, Angéline Bertin, Nicolas Gouin, Alejandro Pareja, Luis Morales, Oswaldo Maillard, Diego Ocampo-Melgar, Francisco A. Squeo   +8 more
doaj   +1 more source

Optimum stimulus for eliciting masseter vestibular-evoked myogenic potential: a comparative exploration with three different acoustic stimuli

The Egyptian Journal of Otolaryngology
Objective To compare the EMG rectified amplitude, absolute latencies, interpeak interval, and Interaural asymmetry parameters of masseter vestibular-evoked myogenic potential (mVEMP) elicited using clicks, 500 Hz tone bursts, and 500 Hz NB CE-chirps ...
Aishwarya Nagarajan, Vinayagar Pazhani Thirusangu, Gunasekaran Mohanlal, Sujeet Kumar Sinha   +3 more
doaj   +1 more source

Convolutional neural networks-driven bias correction of satellite precipitation improves rainfall-runoff-inundation modeling

International Soil and Water Conservation Research
A convolutional neural network (CNN)-based framework is developed to address systematic biases inherent in satellite precipitation products. The CNN-based model generated a bias-corrected gridded precipitation dataset across Cambodia between 0.05° grid ...
Oudom Satia Huong, Xuan-Hien Le, Linh Nguyen Van, Giha Lee, Ty Sok   +4 more
doaj   +1 more source