Results 11 to 20 of about 528,469 (175)

Smart Multi-Sensor System for Remote Air Quality Monitoring Using Unmanned Aerial Vehicle and LoRaWAN

open access: yesSensors, 2022
Deaths caused by respiratory and cardiovascular diseases have increased by 10%. Every year, exposure to high levels of air pollution is the cause of 7 million premature deaths and the loss of healthy years of life.
Rosa Camarillo-Escobedo   +4 more
doaj   +1 more source

¿Revolución Facebook? [PDF]

open access: yes, 2011
Los medios de comunicación se han esforzado en asociar las revueltas con las redes sociales de Internet, especialmente en el caso de Egipto donde abundan las imágenes relacionadas con la marca Facebook. Esta asociación de ideas transmite una impresión de
de Rivera, Javier
core   +4 more sources

A Chaos-Embedded Gravitational Search Algorithm for the Identification of Electrical Parameters of Photovoltaic Cells

open access: yesEnergies, 2017
Solar energy is used worldwide to alleviate the daily increasing demands for electric power. Photovoltaic (PV) cells, which are used to convert solar energy into electricity, can be represented as equivalent circuit models, in which a series of ...
Arturo Valdivia-González   +5 more
doaj   +1 more source

A States of Matter Search-Based Approach for Solving the Problem of Intelligent Power Allocation in Plug-in Hybrid Electric Vehicles

open access: yesEnergies, 2017
Recently, many researchers have proved that the electrification of the transport sector is a key for reducing both the emissions of green-house pollutants and the dependence on oil for transportation.
Arturo Valdivia-Gonzalez   +5 more
doaj   +1 more source

DIGITAL ELEVATION MODEL FROM NON-METRIC CAMERA IN UAS COMPARED WITH LIDAR TECHNOLOGY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Digital Elevation Model (DEM) data as a representation of surface topography is highly demanded for use in spatial analysis and modelling. Aimed to that issue many methods of acquisition data and process it are developed, from traditional surveying ...
O. M. Dayamit   +3 more
doaj   +1 more source

In vivo anti-inflammatory activity of M116, one extract obtained from the marine bacterium Bacillus amyloliquefaciens [PDF]

open access: yesJournal of Pharmacy & Pharmacognosy Research, 2023
Context: Marine organisms are sources of compounds with anti-inflammatory activity, many of them derived from the secondary metabolites produced by microorganisms. Aims: To evaluate the possible anti-inflammatory effect of M116, an extract obtained by
Ivones Hernández-Balmaseda   +6 more
doaj   +1 more source

Naturaleza y arqueología: la reproducción en sociedades cazadoras-recolectoras o la primera revolución reproductiva

open access: yesRevista Atlántica-Mediterránea de Prehistoria y Arqueología Social, 2010
La explicacion para las sociedades cazadoras-recolectoras prehistoricas se basa en procesos inferenciales y analogicos que toman como referencia las sociedades cazadoras-recolectoras modernas. Sin embargo ninguna sociedad estudiada por la Etnografia era primitiva y mucho menos prehistorica.
Assumpció Vila, Jordi Estévez
openaire   +1 more source

An Improved Crow Search Algorithm Applied to Energy Problems

open access: yesEnergies, 2018
The efficient use of energy in electrical systems has become a relevant topic due to its environmental impact. Parameter identification in induction motors and capacitor allocation in distribution networks are two representative problems that have strong
Primitivo Díaz   +6 more
doaj   +1 more source

Arginine substitution by alanine at the P1 position increases the selectivity of CmPI-II, a non-classical Kazal inhibitor

open access: yesBiochemistry and Biophysics Reports, 2021
CmPI-II is a Kazal-type tight-binding inhibitor isolated from the Caribbean snail Cenchritis muricatus. This inhibitor has an unusual specificity in the Kazal family, as it can inhibit subtilisin A (SUBTA), elastases and trypsin. An alanine in CmPI-II P1
Laritza Rojas   +5 more
doaj   +1 more source

An Algorithm for Global Optimization Inspired by Collective Animal Behavior

open access: yesDiscrete Dynamics in Nature and Society, 2012
A metaheuristic algorithm for global optimization called the collective animal behavior (CAB) is introduced. Animal groups, such as schools of fish, flocks of birds, swarms of locusts, and herds of wildebeest, exhibit a variety of behaviors including ...
Erik Cuevas   +4 more
doaj   +1 more source

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