Now showing items 1-10 of 3266
Regional Relationships in New Housing Prices in ColombiaRelaciones regionales en los precios de vivienda nueva en Colombia
(Universidad EAFIT, 2015-06-30)
Sources of Economic Fluctuations in Central AmericaFuentes de fluctuaciones económicas en América Central
(Universidad EAFIT, 2014-06-30)
La Niña-like conditions in the eastern equatorial Pacific and a stronger Choco jet in the northern Andes during the last glaciation
(American Geophysical Union (AGU), 2002-12-30)
Six deep sea cores from the eastern equatorial Pacific (EEP) were analyzed for planktonic foraminifera and stable isotopes in order to reconstruct sea surface temperatures (SST) for the last 40 ka. South of the Equatorial ...
Speckle photography with different pupils in a multiple-exposure scheme
(Optical Society of America, 2000-01-01)
The use of different multiple-aperture pupils for recording each image in speckle photography is proposed -- The introduction of suitable spatial frequency carriers, by internally modulating imaged speckles, allows one to ...
Improvement of the signal-to-noise ratio in digital holography
(Sociedad Mexicana de Física, 2005-02)
A fundamental problem in optical and digital holography is the presence of speckle noise in the reconstruction process, which essentially diminishes the signal to noise ratio (SNR). For many applications, that reduction ...
Obtención de estructuras de relieve en materiales de registro de haluros de plata
Diffraction transmission gratings were recorded in AGFA-8E75 film, chemically treated under processes with D-19 + potassium ferrocyanide and a chemical processing technique proposed for PE-2 film to obtain embossed stripes. ...