Results 51 to 60 of about 7,930 (201)

Estimation model of wild fractional vegetation cover based on RGB vegetation index and its application

open access: yesOpen Geosciences
An accurate survey of field vegetation information facilitates the evaluation of ecosystems and the improvement of remote sensing models. Extracting fractional vegetation cover (FVC) information using aerial images is one of the important areas of ...
Dai Shaojun   +4 more
doaj   +1 more source

Abordagem metodológica baseada em imagens do SAR-R99B para identificar prováveis pistas de pouso não-homologadas na Amazônia Methodological approach based on SAR-R99B radar images to identify potential unofficial airplane strips in Amazonia

open access: yesActa Amazonica, 2009
Este estudo apresenta uma abordagem metodológica baseada em imagens de radar e nos critérios de tonalidade, tamanho e forma geométrica para identificar prováveis pistas de pouso não-homologadas na Amazônia.
Sergio Alexandre Saloio Alves   +3 more
doaj   +1 more source

MONITORING THE RATE OF EXPANSION OF AGRICULTURAL FIELDS IN MWEKERA FOREST RESERVE USING REMOTE SENSING AND GIS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Rapid population growth and rural-urban migration amidst limited job opportunities lead to conversion of land from forests into agriculture and other land uses.
K. Kanja, M. Mwemba, K. Malunga
doaj   +1 more source

Research on Apple Damage Detection Based on Hyperspectral Imaging

open access: yesGuangdong nongye kexue, 2023
【Objective】By studying the hyperspectral characteristics of apple damage and establishing the best classification model of apple damaged area based on hyperspectral imaging, we can provide an important basis for realtime, rapid and accurate ...
Fan WANG   +4 more
doaj   +1 more source

Monitoring urban growth and land use land cover change in Al Ain, UAE using remote sensing and GIS techniques [PDF]

open access: yes, 2017
Urbanization and industrialization cause a serious land degradation problem, including an increased pressure on natural resources such as deforestation, rise in temperature and management of water resources.
Chowdhury, Rezaul K.   +1 more
core   +2 more sources

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing—Part II: Processability by Powder Bed Fusion of Metals Using a Laser Beam

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
In this manuscript, the processability of X2CrNiMo17‐12‐2 powder coated with silicon carbide, silicon, and silicon nitride nanoparticles is investigated. The amount of nanoparticles varies from 0.25 to 1 vol%. By coating the powder feedstock material with nanoparticles, an enlargement of the process window and an increase in the build rate are achieved.
Nick Hantke   +5 more
wiley   +1 more source

Fuzzy EMG classification for prosthesis control [PDF]

open access: yes, 2000
This paper proposes a fuzzy approach to classify single-site electromyograph (EMG) signals for multifunctional prosthesis control. While the classification problem is the focus of this paper, the ultimate goal is to improve myoelectric system control ...
Chan, FHY   +4 more
core   +1 more source

Stamps extraction using local adaptive k- means and ISODATA algorithms

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2021
<span>One of the main difficulties facing the certified documents documentary archiving system is checking the stamps system, but, that stamps may be contains complex background and surrounded by unwanted data. Therefore, the main objective of this paper is to isolate background and to remove noise that may be surrounded stamp.
Maha A. Rajab, Loay E. George
openaire   +2 more sources

Effects of Soil Structure on the Growth of Rice Roots

open access: yesJournal of Plant Nutrition and Soil Science, Volume 188, Issue 3, Page 402-407, June 2025.
ABSTRACT Soil pore structure has a large impact on plant root architecture, but it is difficult to study due to secondary impacts from bulk density, carbon, nutrients, and other properties. Here, we isolated soil pore structure by forming controlled soil structures in repacked columns. To generate a non‐structured treatment, sieved soil was packed to 1.
Md. Dhin Islam   +2 more
wiley   +1 more source

Application of clustering techniques to multispectral optical data over the ocean [PDF]

open access: yes, 2005
MERIS, on Envisat, provides high-resolution radiometric data at nine discrete channels in the visible band. This paper looks at the potential of an unsupervised classification technique for utilizing these multi-spectral data to provide better ...
Byfield, Valborg   +4 more
core  

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