Results 81 to 90 of about 354,066 (197)

Chromatic Dispersion Compensation Using Photonic Crystal Fibers with Hexagonal Distribution

TecnoLógicas, 2013
In this paper we show various configurations of photonic crystal fiber with hexagonal holes distribution for compensation of chromatic dispersion in optical communications links.
Erick E. Reyes-Vera, Nelson D. Gomez-Cardona   +1 more
doaj  

A Preliminary Study on the Measurement of Sediment Concentration in Hill-Slope Runoff with an Electrolyte Tracer

Terrestrial, Atmospheric and Oceanic Sciences, 2012
Sediment concentration in hill-slope runoff is an important index for soil erosion. Developing a reliable and portable measuring system of sediment concentration is a core issue for soil and water conservation study, especially for the Tibetan Plateau ...
Xiaonan Shi Fan Zhang
doaj   +1 more source

Doppler and Non-Doppler Shifts in Dispersion Relations for Rossby Waves and Galilean Invariance

Russian Journal of Earth Sciences
The purpose of this work is to draw the reader's attention to a paradoxical fact – the existence of two different dispersion relations for linear Rossby waves: with Doppler and nonDoppler shifts.
Gnevyshev Vladimir, Belonenko Tatyana
doaj   +1 more source

Justification for the Choice of the Sea Surface Mathematical Model in Solving the Problem of Radar for Environment Monitoring

Известия высших учебных заведений России: Радиоэлектроника, 2016
Accuracy assessment of sea surface mathematical modeling are discussed. The linear model with Pierson-Moskowitz and Elfouhaily spectrum as well as nonlinear CWM model, which provides computational process stability and low computational complexity, are ...
V. V. Leontyev, A. A. Pimenov
doaj  

Comparative Analysis of Large-Scale Testing and Three-Dimensional Rockfall Modeling in Assessment of Tabulated Coefficients of Restitution

Applied Sciences
Rockfall hazard assessment and mitigation design relies heavily on three-dimensional trajectory modeling, in which the coefficient of restitution (COR) is a governing parameter controlling rebound, energy dissipation, and runout distance.
Grant Goertzen, Kinley Seabaugh, Nick Hudyma   +2 more
doaj   +1 more source

MEGADES: MEGARA galaxy disc evolution survey

Astronomy & Astrophysics
We present the ionised gas properties and metallicity gradients of the central area of a sample of 43 galaxies using observations obtained by the MEGADES survey.
Chamorro-Cazorla M., Gil de Paz A., Castillo-Morales A., Camps-Fariña A., Gallego J., Carrasco E., Iglesias-Páramo J., Cedazo R., García-Vargas M. L., Pascual S., Cardiel N., Pérez-Calpena A., Gómez-Álvarez P., Martínez-Delgado I., Catalán-Torrecilla C., Zamorano J.   +15 more
doaj   +1 more source

Strategic Investor Behaviour and the Volume-Volatility Relation in Equity Markets [PDF]

We examine the volume-volatility relation using detailed data from a limit order driven equity market. Estimates of the intraday slope of the demand and supply schedules of the order book are found to capture regularities in spreads, trade size and ...
Johannes A. Skjeltorp, Randi Naes
core  

Numerical Study on the Influence of the Slope Composition of the Asymmetric V-Shaped Tunnel on Smoke Spread in Tunnel Fire

Fire
Asymmetrical V-shaped tunnels often appear in tunnels crossing the river or urban underground road tunnels. The smoke flow inside is affected by a lot of factors.
Dengkai Tu, Junmei Li, Yanfeng Li, Desheng Xu   +3 more
doaj   +1 more source

Potential role of two-dimensional shear wave elastography, including liver stiffness measurement and dispersion slope, for management of chronic hepatitis B. [PDF]

Ultrasonography
Song SJ, Kim YR, Lee YH, Cho EY.
europepmc   +1 more source

Effects of different blood storage conditions on leukocytes cell population data using the Sysmex XN hematological analyzer. [PDF]

Biochem Med (Zagreb)
Roccaforte V, Panella R, Daves M, De Martino A, Jani E, Sabbatini G, Agostini P, De Filippi F, Formenti P, Lippi G, Vidali M, Pezzi A, Pastori S.   +12 more
europepmc   +1 more source