Results 11 to 20 of about 4,019 (195)

Dynamic simulation and exergetic analysis of a solar thermal collector installation

open access: yesAlexandria Engineering Journal, 2022
Solar collectors are active solar devices which help reducing the energy consumption in buildings. In this paper, a real installation of solar collectors is analysed under different collector array configurations.
David García-Menéndez   +3 more
doaj   +1 more source

Analysis of a solar driven ORC-absorption based CCHP system from a novel exergy approach

open access: yesEnergy Conversion and Management: X, 2023
The present study comprehensively analyses the thermodynamic performance of a zero-emissions solar driven trigeneration system using a numerical approach.
Jesús García-Domínguez   +2 more
doaj   +1 more source

Population structure and spatial distribution of the gastropod molluscs Osilinus atrata and Osilinus sauciatus in the rocky intertidal zone of the Canary Islands (Central East Atlantic)

open access: yesCiencias Marinas, 2005
A hierarchical sampling design was used to study the population structure and the horizontal (differences among islands, locations within islands and sites within locations) and vertical (differences among intertidal bands) distribution patterns of the ...
R Ramírez   +6 more
doaj   +1 more source

Accurate and automatic NOAA-AVHRR image navigation using a global contour matching approach [PDF]

open access: yes, 2000
The problem of precise and automatic AVHRR image navigation is tractable in theory, but has proved to be somewhat difficult in practice. The authors' work has been motivated by the need for a fully automatic and operational navigation system capable of ...
Eugenio, F   +4 more
core   +1 more source

Automatic Sun Glint Removal of Multispectral High-Resolution Worldview-2 Imagery for Retrieving Coastal Shallow Water Parameters

open access: yesRemote Sensing, 2016
Remote sensing of coastal areas requires multispectral satellite images with a high spatial resolution. In this sense, WorldView-2 is a very high resolution satellite, which provides an advanced multispectral sensor with eight narrow bands, allowing the ...
Javier Martin   +3 more
doaj   +1 more source

Physical activity practice and attitudes in canarian teenagers [PDF]

open access: yes, 2015
En el presente estudio de la población adolescente de la Comunidad Autónoma de Canarias, se evidencia que aquellos adolescentes que cumplen con las recomendaciones de práctica de Actividad Física tanto de intensidad moderada como vigorosa frente a los ...
Brito-Ojeda, E.   +5 more
core   +2 more sources

TOPSIS Decision on Approximate Pareto Fronts by Using Evolutionary Algorithms: Application to an Engineering Design Problem

open access: yesMathematics, 2020
A common technique used to solve multi-objective optimization problems consists of first generating the set of all Pareto-optimal solutions and then ranking and/or choosing the most interesting solution for a human decision maker (DM).
Máximo Méndez   +3 more
doaj   +1 more source

Marinas as habitats for nearshore fish assemblages: comparative analysis of underwater visual census, baited cameras and fish traps [PDF]

open access: yes, 2017
Understanding the ecological role that artificial structures might play on nearshore fish assemblages requires the collection of accurate and reliable data through efficient sampling techniques.
Bosch, Nestor E.   +3 more
core   +3 more sources

Cyanobacteria and Red Macroalgae as Potential Sources of Antioxidants and UV Radiation-Absorbing Compounds for Cosmeceutical Applications

open access: yesMarine Drugs, 2020
In recent years, research on natural products has gained considerable attention, particularly in the cosmetic industry, which is looking for new bio-active and biodegradable molecules.
Julia Vega   +3 more
doaj   +1 more source

Luminescence methods for study and determination of pollutants in the environment

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2010
The analytical performances and applications of various luminescence spectrometric methods to the study and determination of pollutants present at low levels in the environment are reviewed for the last two decades (1990 – 2010).
Tanausú Vega Morales   +4 more
doaj   +1 more source

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