Results 21 to 30 of about 25,298 (237)

Classification of ordered texture images using regression modelling and granulometric features [PDF]

open access: yes, 2011
Structural information available from the granulometry of an image has been used widely in image texture analysis and classification. In this paper we present a method for classifying texture images which follow an intrinsic ordering of textures, using ...
Gray, Alison   +2 more
core   +1 more source

QUANTITATIVE AND QUALITATIVE CHARACTERIZATION OF THE GRANULOMETRY OF AN INCEPTISOL

open access: yesQuímica Nova, 2023
Granulometry is an initial factor to be considered in soil research as it plays a fundamental role in physical and chemical properties. The objective of this study was to characterize the granulometric fractions of soil, obtained using the screening and sedimentation method.
Janaina Schadosin   +3 more
openaire   +3 more sources

Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data

open access: yesAndean Geology, 2013
The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase that injected large amounts of tephra into the atmosphere. During the first week of the eruption, volcanic ash clouds were transported for hundreds of kilometres over Argentina
María Soledad Osores   +6 more
doaj   +1 more source

An original growth mode of MWCNTs on alumina supported iron catalysts [PDF]

open access: yes, 2009
Multi-walled carbon nanotubes (MWCNTs) have been produced from ethylene by Fluidized Bed Catalytic Chemical Vapor Deposition (FB-CCVD) on alumina supported iron catalyst powders.
Bernard, Daniel   +9 more
core   +2 more sources

Caespitosa and decumbens Poaceae fertilized with NPK: effects on soil aggregation

open access: yesPesquisa Agropecuária Tropical, 2014
The disintegration of soil particles affects its productive capacity, resulting in compression, erosion and nutrient losses. This study aimed at evaluating the aggregates quality and stability of a Yellow Latosol, in a randomized blocks design ...
Dácio Jerônimo de Almeida   +4 more
doaj   +1 more source

Evaluation of a Greek Diatomaceous Earth for Stored Product Insect Control and Techniques That Maximize Its Insecticidal Efficacy

open access: yesApplied Sciences, 2020
Laboratory bioassays were conducted to evaluate the insecticidal efficacy of a diatomaceous earth deposit from Greece, for a wide range of stored product insects. In this context, populations of five different insect species, Tribolium confusum Jacquelin
Georgia V. Baliota   +1 more
doaj   +1 more source

Large scale production of multi-walled carbon nanotubes by fluidized bed catalytic chemical vapor deposition : a parametric study [PDF]

open access: yes, 2007
A parametric study investigating the impact of temperature, run duration, total pressure, and composition of the gaseous phase on the catalytic growth of multi-walled carbon nanotubes (MWNT) has been performed.
Bernard, Daniel   +7 more
core   +2 more sources

Advances in technology of soluble cores for die castings [PDF]

open access: yes, 2015
A number of technologies is developed that substitute simple metal cores in the high-pressure casting technology. Soluble cores, namely on the salt basis, represent the highest prospect.
Adámková, Eliška   +3 more
core   +1 more source

Rhodium colloidal suspension deposition on porous silica particles by dry impregnation: Study of the influence of the reaction conditions on nanoparticles location and dispersion and catalytic reactivity [PDF]

open access: yes, 2009
Rhodium composite nanomaterials were synthesized by an innovating process called dry impregnation in a fluidized bed. It consists in spraying an aqueous colloidal suspension of rhodium on silica porous particles.
Barthe, Laurie   +5 more
core   +4 more sources

Optimization of Powder Layer Density in Selective Laser Sintering [PDF]

open access: yes, 1999
An important parameter for the overall quality of SLS parts is the density of powder layers before sintering. Previous studies have shownthatthe control of powder particle shape and size distribution can increase the density of non-packed powder beds ...
Egger, G.   +3 more
core   +1 more source

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