Results 11 to 20 of about 104,421 (228)

Phenological Dynamics Characterization of Alignment Trees with Sentinel-2 Imagery: A Vegetation Indices Time Series Reconstruction Methodology Adapted to Urban Areas

open access: yesRemote Sensing, 2020
This article presents a novel methodology for the characterization of tree vegetation phenology, based on vegetation indices time series reconstruction and adapted to urban areas. The methodology is based on a pixel by pixel curve fitting classification,
Carlos Granero-Belinchon   +3 more
doaj   +1 more source

UNMANNED AERIAL VEHICLES - APPLICATION, LEGAL REGULATIONS AND CHALLENGES [PDF]

open access: yesDefence Science Review, 2019
The advantages of unmanned systems, such as cheaper operation, greater safety, better performance in flight duration or their minimal impact on the natural environment, result in a systematic increase in their significance and development, compared to ...
Jacek Krawczyk, Marek Tomaszycki
doaj   +1 more source

Mapeo de la cicatriz pos-incendio forestal para la estimación de pérdidas potenciales del área de producción de pulpa de papel, Municipios de Yumbo, La Cumbre y Dagua (Valle del Cauca), año 2014

open access: yesEntorno Geografico, 2022
En este estudio se pretende determinar el área de afectación o cicatriz pos-incendio forestal sobre los cultivos de producción de pulpa de papel en los municipios de Yumbo, La Cumbre y Dagua a partir de imágenes Landsat 8.
Eduard Paz Zúñiga
doaj   +1 more source

Research on property variation and mechanism of NBR immersed in oil

open access: yesZhejiang dianli, 2023
Nitrile butadiene rubber (NBR) is a crucial sealing material for oil-immersed equipment, and its properties have a direct impact on the safe operation of equipment.
ZHOU Yutong   +5 more
doaj   +1 more source

Is positive income elasticity of demand really associated with normal goods?: revisiting the Slutsky equation and net benefit ratio [PDF]

open access: yesInternational Journal of Business and Development Studies, 2017
Incorporating a household’s net sale status into a rearranged Slutsky equation with combined ordinary and endowment income effects, this paper aims to reinterpret the income elasticity of demand in the case of buying and selling and to associate it with ...
M Bakhshoodeh
doaj   +1 more source

A systematic study of the effect of graphene oxide and reduced graphene oxide on the thermal degradation behavior of acrylonitrile-butadiene rubber in air and nitrogen media

open access: yesScientific African, 2023
Thermal degradation of acrylonitrile-butadiene rubber (NBR)-graphene oxide (GO)/reduced graphene Oxide (G) composites (NBR-GO/G) was studied in air O2(g) and nitrogen N2(g) media at ∼800°C, using Thermal Gravimetric Analysis (TGA/DTG).
Bismark Mensah   +4 more
doaj   +1 more source

Development of a method for transferring forest lands to forest cover lands by remote sensing methods [PDF]

open access: yesСибирский лесной журнал, 2019
Assessment of forest regeneration using remote sensing data is a priority scientific research topic worldwide today. Threshold values for successful reforestation can be defined using multi­temporal satellite scenes and indices for analysis of vegetation
A. A. Karpov   +4 more
doaj   +1 more source

Behavioral Reserve in Behavioral Variant Frontotemporal Dementia

open access: yesFrontiers in Aging Neuroscience, 2022
“Reserve” refers to the individual clinical differences in response to a neuropathological burden. We explored the behavioral reserve (BR) and associated neural substrates in 40 participants with behavioral variant frontotemporal dementia (bvFTD) who ...
Su Hong Kim   +17 more
doaj   +1 more source

Shape-memory properties of ethylene-methyl acrylate copolymer/nitrile rubber thermoplastic vulcanizates under compression mode

open access: yesHecheng xiangjiao gongye, 2021
The ethylene-methyl acrylate copolymer (EMA)/nitrile rubber (NBR) thermoplastic vulcanizates (TPV) (EMA/NBR TPV) were prepared by dynamic vulcanization, the dynamic mechanical properties and thermal stability of EMA/NBRTPV were studied, the influence of ...
LI Jia-hao; SUN Ying-tao; LU Xun; WANG Zhao-bo
doaj   +1 more source

Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper [PDF]

open access: yes, 2011
In this study several pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment are evaluated. GeoCBI (Geo Composite Burn Index) field data of burn severity were correlated with remotely sensed measures, based ...
Goossens, Rudi   +3 more
core   +2 more sources

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