Search results for "Drop size"

showing 3 items of 13 documents

Synthesis of Mesoporous Supraparticles on Superamphiphobic Surfaces

2015

A method for mesoporous supraparticle synthesis on superamphiphobic surfaces is designed. Therefore, supraparticles assembled with nanoparticles are synthesized by the evaporation of nanoparticle dispersion drops on the superamphiphobic surface. For synthesis, no further purification is required and no organic solvents are wasted. Moreover, by changing the conditions such as drop size and concentration, supraparticles of different sizes, compositions, and architectures are fabricated.

TitaniumMaterials scienceDrop sizeSurface PropertiesMechanical EngineeringMetal NanoparticlesTin CompoundsWaterNanoparticlechemistry.chemical_elementNanoparticle dispersionEvaporation (deposition)Chemical engineeringchemistryMechanics of MaterialsMicroscopy Electron ScanningGeneral Materials SciencePorosityMesoporous materialMetal nanoparticlesHydrophobic and Hydrophilic InteractionsPorosityTitanium
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Estimating rainfall erosivity by aggregated drop size distributions

2016

Rainfall erosivity is defined as the potential of the rain to cause erosion, and it can be represented by rainfall kinetic power. At first in this paper, the raindrop size distributions (DSD) measured by an optical disdrometer located at Palermo in the period June 2006–March 2014 and aggregated for intensity classes, are presented. Then an analysis of raindrop size characteristics is carried out, and the reliability of Ulbrich's distribution, using both the maximum likelihood and momentum estimate parameter methods, is tested. The raindrop size measurements are used to determine the experimental rainfall kinetic power values, which are compared with the ones calculated by a theoretically de…

Ulbrich's distributionrainfall erosivityrainfall kinetic powerSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestalidrop size distributiondrop size distribution; rainfall erosivity; rainfall kinetic power; Ulbrich's distribution; Water Science and TechnologyWater Science and Technology
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ESTIMATING RAINFALL EROSIVITY BY DROP SIZE DISTRIBUTIONS

Water soil erosion is a process of detachment and transport of soil particles due to rainfall and runoff and it is the main cause of the modeling of extended portions of the earth's surface. The acceleration of the process through anthropogenic perturbation has severe impacts on soil and environmental quality. Soil erosion above a certain level will reduce soil productivity over the long haul. It exposes subsoil, which has often poor qualities for crop establishment and growth, and it can lead to stand loss by sediment deposition. A fundamental property of rainfall for understanding how it is made up is the raindrop size distribution (DSD). The knowledge of the raindrop size distribution at…

rainfall intensityrainfall kinetic powerSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliRainfall erosivitydrop size distributions
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