Results 11 to 20 of about 238,607 (225)

Optimizing Total Suspended Solids Mitigation in a Data‐Limited Watershed: A Network‐Based Advection–Reaction Model Applied to the Canal del Dique, Colombia

open access: yesWater Resources Research
Total Suspended Solids (TSS) significantly degrade water quality by reducing light penetration and oxygen availability, while facilitating the transport of toxic contaminants.
Jesus Guzmán Pérez   +2 more
doaj   +2 more sources

Índice basado en presiones atmosféricas para la detección de efectos de El Niño y la Oscilación del Sur frente a la costa peruana

open access: yesRevista Peruana de Biología, 2008
Se analizó el comportamiento de un índice basado en la diferencia de anomalías de presiones atmosféricas entre Darwin y Paita (IDP), como un indicador de los efectos de El Niño y La Niña frente a la costa peruana, en el Norte del Ecosistema de la ...
Carlos Quispe   +3 more
doaj   +1 more source

The analog data assimilation [PDF]

open access: yes, 2017
In light of growing interest in data-driven methods for oceanic, atmospheric, and climate sciences, this work focuses on the field of data assimilation and presents the analog data assimilation (AnDA).
Ailliot, Pierre   +4 more
core   +3 more sources

Modelo empírico para previsión de la temperatura superfi cial del mar peruano

open access: yesRevista Peruana de Biología, 2013
En el presente trabajo se estudia un modelo empírico basado en el volumen de agua cálida en el Pacífi co ecuatorial que se aplica para hacer previsiones de temperatura superfi cial del mar frente a Perú, lo cual sirve como una herramienta de alerta ...
Benjamin Matellini   +2 more
doaj   +1 more source

Evolution of research on global amphibian declines. [PDF]

open access: yesConserv Biol
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Crawford-Ash J   +6 more
europepmc   +2 more sources

Estimation of gravity wave parameters to alleviate the delay in the Antarctic vortex breakup in general circulation models [PDF]

open access: yes, 2018
The impact of optimal parameters in a non-orographic gravity wave drag parameterization on the middle atmosphere circulation of the Southern hemisphere is examined. Optimal parameters are estimated using a data assimilation technique.
Pulido, Manuel Arturo   +1 more
core   +1 more source

Modelling and automatic control in solar membrane distillation: Fundamentals and proposals for its technological development

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2020
Membrane distillation is a termally-driven separation process under investigation. This technology stands out for the simplicity of the process and for its low operating temperature, which allows it to be combined with low grade solar energy.
J. D. Gil, L. Roca, M. Berenguel
doaj   +1 more source

Nonlinear optimization for a tumor invasion PDE model [PDF]

open access: yes, 2016
In this work, we introduce a methodology to approximate unknown parameters that appear on a non-linear reaction–diffusion model of tumor invasion. These equations consider that tumor-induced alteration of micro-environmental pH furnishes a mechanism for ...
Fernández Ferreyra, Damián Roberto   +3 more
core   +1 more source

Uso de la simulación en procesos de construcción

open access: yesTecnología en Marcha, 2019
En un entorno económico como el actual, las empresas de construcción deben procurar que los procesos que se desarrollan en sus proyectos se caractericen por altos rendimientos y desempeños operacionales, sean eficientes en cuando al uso de materiales ...
Alejandro Ramón-Elizondo   +1 more
doaj   +1 more source

Controlled complete suppression of single-atom inelastic spin and orbital cotunnelling [PDF]

open access: yes, 2015
The inelastic portion of the tunnel current through an individual magnetic atom grants unique access to read out and change the atom's spin state, but it also provides a path for spontaneous relaxation and decoherence. Controlled closure of the inelastic
Bryant, B.   +6 more
core   +3 more sources

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