Results 21 to 30 of about 238,245 (272)

Effect of Biomass-Burning Emissions on Soil Water Repellency: A Pilot Laboratory Study

open access: yesFire, 2021
While western U.S. wildfires have increased in intensity and scale, their impacts on soil chemical composition and hydraulic processes have received little attention, despite increasing erosion, surface runoff and flooding.
Vera Samburova   +4 more
doaj   +1 more source

Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline:mathematical models and experimental validations [PDF]

open access: yes, 2019
This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline.
Chaudhary, Muhammad Akmal   +2 more
core   +2 more sources

Comparison Methods of Determining the Degree of Hydrophobicity Based on the Measurement of Soil-Water Contact Angle

open access: yesعلوم آب و خاک, 2021
The contact angle is a numerical index of differentiation between hydrophilic and hydrophobic soils. The objectives of this research are: 1) assessing different methods such as capillary rise, the molarity of ethanol droplet, repellency index, and ...
R Mousavi Zadeh Mojarad   +2 more
doaj  

Soil hydrophobicity: comparative study of usual determination methods

open access: yesCiência Rural, 2015
Hydrophobic or water repellent soils slowly absorb water because of the low wett ability of the soil particles which are coated with hydrophobic organic substances. These pose significant effects on plant growth, water infiltration and retention, surface
Eduardo Saldanha Vogelmann   +4 more
doaj   +1 more source

The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO2 and ZnO Nanoparticles

open access: yesNanomaterials, 2020
In this study, six solvents (water, diiodomethane, bromonaphthalene, formamide, ethanol and ethylene glycol) were examined for three nanoparticle substrates, zinc oxide and titanium dioxide (21 nm and 100 nm), with the goal of assessing the suitability ...
Sabrina M. Garner   +3 more
doaj   +1 more source

Time-dependent hydrophobic characterisation of granular materials synthesised with commercial chemical agents [PDF]

open access: yesE3S Web of Conferences, 2023
The impact of hydrophobicity on unsaturated granular materials is important because suction is a function of the degree of saturation as well as the surface tension and contact angle of the water menisci.
Saulick Yunesh   +2 more
doaj   +1 more source

Impact of secondary succession in abandoned fields on some properties of acidic sandy soils

open access: yesJournal of Hydrology and Hydromechanics, 2020
Abandonment of agricultural lands in recent decades is occurring mainly in Europe, North America and Oceania, and changing the fate of landscapes as the ecosystem recovers during fallow stage.
Lichner Ľubomír   +9 more
doaj   +1 more source

Absorption and rheological phenomena during foam application on textiles [PDF]

open access: yes, 1992
A simple rheological model has been used to describe foam flow through moving textile assemblies. The validity of this model was tested, and the nature and the relative magnitude of deviations from the model evaluated for several different substrates ...
Groot Wassink, J., Lemmen, J.T.E.
core   +3 more sources

Seepage Characteristics and Failure Prediction during the Complete Stress–Strain Process of Limestone under High Water Pressure

open access: yesApplied Sciences, 2022
The seepage characteristics during the complete stress–strain process of limestone under high water pressure were simulated via an experimental study of limestone post-peak penetrating behavior, and an approach to predict the formation of the seepage ...
Chunyan Bao   +4 more
doaj   +1 more source

Microstructured superhydrorepellent surfaces: Effect of drop pressure on fakir-state stability and apparent contact angles

open access: yes, 2009
In this paper we present a generalized Cassi-Baxter equation to take into account the effect of drop pressure on the apparent contact angle theta_{app}.
Bartolo D   +6 more
core   +1 more source

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