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Phase-difference images by digital holography applied to 3D surface contouring 

Velásquez-Prieto, Daniel; García Sucerquia, Jorge Iván (Academia Colombiana de Ciencias Exactas Físicas y Naturales, 2005-06)
The problem to determine the 3D-contour of objects with all sizes and shapes is a hot topic in diverse fields of optical research and engineering. Through the use of the numerical reconstruction of digital recorded holograms, ...
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Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) 

Fontán, A; Alcántara-Carrió, J; Correa-Arango, Ivan D. (Faculty of Geology, Martí i Franquès, 2012-12-01)
The analysis of the accurate topo-bathymetric digital elevation model (DEM), the cartography of the submarine sedimentary cover and the monitoring of short (seasonal) and medium-term (2000-2009) morphological changes have ...
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Three-dimensional surface contouring of macroscopic objects by means of phase-difference images 

García Sucerquia, Jorge Iván; Velásquez Prieto, Daniel Ignacio; García Sucerquia, Jorge Iván; Velásquez Prieto, Daniel Ignacio (OSA, 2006-04-16)
We report a technique to determine the 3D contour of objects with dimensions of at least 4 orders of magnitude larger than the illumination optical wavelength. Our proposal is based on the numerical reconstruction of the ...
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The epidemic threshold theorem with social and contact heterogeneity 

Palacio, D.H.; Giraldo, J.O.; Arias, R.D.G. (SPIE-INT SOC OPTICAL ENGINEERING, 2008-03-17)
The threshold theorem of an epidemic SIR model was compared when infectious and susceptible individuals have homogeneous mixing and heterogeneous social status and when individuals of random networks have contact heterogeneity. ...
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Combining fuzzy, PID and regulation control for an autonomous mini-helicopter 

Sanchez, Edgar N.; Becerra, Hector M.; Velez, Carlos M. (ELSEVIER SCIENCE INC, 2007-05-15)
This paper reports on the synthesis of different flight controllers for an X-Cell mini-helicopter. They are developed on the basis of the most realistic mathematical model currently available. Two hybrid intelligent control ...
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Understanding epidemics from mathematical models: Details of the 2010 dengue epidemic in Bello (Antioquia, Colombia) 

Lizarralde-Bejarano, D.P.; Arboleda-Sánchez, S.; Puerta-Yepes, M.E. (Elsevier Inc., 2017-03-01)
Dengue is the most threatening vector-borne viral disease in Colombia. At the moment, there is no treatment or vaccine available for its control or prevention; therefore, the main measure is to exert control over mosquito ...
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Parameter estimation of a predator-prey model using a genetic algorithm 

Restrepo, J.G.; Sánchez, C.M.V. (2010-01-01)
This paper presents the parameter estimation of a biological system with real data extracted from literature, and different model structures: Lotka-Volterra model (basic predator-prey model) and saturation predator-prey ...
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Quantitative biostratigraphic model for the tertiary of the lower Magdalena Basin, Colombian Caribbean 

Cuartas, C.; Jaramillo, C.; Martínez, J.-I. (Ecopetrol, 2006-01-01)
The reinterpretation of biostratigraphic information by new models and quantitative correlation techniques substantially improves its resolution and its correlative potential, thus minimizing oil exploration risks. With ...
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Two-dimensional description of absorption in humans after dermal exposure to volatile organic compounds 

Simon, Laurent; Ospina, Juan (TAYLOR & FRANCIS INC, 2017-06-03)
A two-dimensional diffusion model was developed to predict the absorption of chemicals in humans following dermal contact. A firstorder evaporation rate equation was applied to the skin surface while a perfect-sink boundary ...
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Approximated analytical solution to an Ebola optimal control problem 

Hincapié-Palacio, D.; Ospina, J.; Torres, D.F.M. (Board Members, 2016-01-01)
An analytical expression for the optimal control of an Ebola problem is obtained. The analytical solution is found as a first-order approximation to the Pontryagin Maximum Principle via the Euler-Lagrange equation. An ...
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Document typeArtículo (10)Documento de conferencia (7)AuthorOspina, J. (3)Agudelo, A. (2)García Sucerquia, Jorge Iván (2)Ospina, Juan (2)Vélez S., C.M. (2)... View MoreSubject
Mathematical models (17)
Computer simulation (4)Diffusion (3)Helicopters (3)MODELOS MATEMÁTICOS (3)... View MoreDate Issued2010 - 2017 (7)2001 - 2009 (10)

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