Results 41 to 50 of about 91,818 (202)

Space charge and soil ionization: an electro-kinetic approach

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2011
This paper proposes an electro-kinetic model of soil ionization for concentrated electrodes submitted to impulse currents. This approach allows a better understanding of the dynamic response of earth rods. Since current density attains a sufficient value around the electrode, ionization appears in the soil and produces a transient reduction of the ...
Diaz, Ricardo Ruben, Silva, José N.
openaire   +2 more sources

Secondary metabolites with ecologic and medicinal implications in Anthemis cretica subsp. petraea from Majella National Park [PDF]

open access: yes, 2016
Anthemis cretica subsp. petraea (Ten.) Greuter is a plant belonging to the Asteraceae family and endemic of central Italy. In this paper, the first analysisof the ethanolic fraction of samples collected in the Majella National Park is reported.
Alessandro Venditti   +7 more
core   +2 more sources

Effects of Ionized Water Addition on Soil Nitrification Activity and Nitrifier Community Structure

open access: yesAgronomy, 2022
Water ionization is an efficient physical water treatment technology, and crop water and nutrient use efficiencies can be improved using ionized water for irrigation.
Zhi Qu   +5 more
doaj   +1 more source

Fly Ash as an Ingredient in the Contaminated Soil Stabilization Process

open access: yesEnergies, 2022
Fly ash is the main by-product of coal combustion characterized by a large specific surface area. In addition to oxides, it also contains unburned coal and trace elements.
Kamil Banaszkiewicz   +2 more
doaj   +1 more source

Evaluation of total petroleum hydrocarbons (TPH) in urban soil from Maicao, Colombia

open access: yesRevista Colombiana de Química, 2015
The presence of total petroleum hydrocarbons (TPH) and their effects on soil properties in urban area of Maicao, Colombia, was evaluated. 18 sites were selected: nine contaminated and nine non-contaminated and two depths (0-30 cm and 30-60 cm) were ...
Martha L. Castellanos   +2 more
doaj   +1 more source

Soil residue ecotoxicology from biosurfactant extraction for oily soil decontamination process [PDF]

open access: yesE3S Web of Conferences
Solvent extraction as part of oily soil decontamination process has been including rhamnolipid biosurfactant to be part for seeking its possibility for further implementation.
Lely Fitriyani, Edwan Kardena, Sukandar
doaj   +1 more source

Isolation and Characterization of Hexadecane Degrading Bacteria from Oil- polluted soil in Gio Community, Niger Delta, Nigeria

open access: yesScientific African, 2020
This study investigated the presence of viable indigenous hexadecane degraders in chronically polluted soil in Gio community, Niger Delta. Crude oil-polluted samples were collected from the four GPS coordinate points at depth of 0-0.15m (Gio polluted ...
A.U. Okoye   +2 more
doaj   +1 more source

Activity of Fengycin and Iturin A Isolated From Bacillus subtilis Z-14 on Gaeumannomyces graminis Var. tritici and Soil Microbial Diversity

open access: yesFrontiers in Microbiology, 2021
Bacillus subtilis Z-14 can inhibit phytopathogenic fungi, and is used as a biocontrol agent for wheat take-all disease. The present study used the soil-borne fungus Gaeumannomyces graminis var.
Jiawen Xiao   +5 more
doaj   +1 more source

An absorption profile centred at 78 megahertz in the sky-averaged spectrum

open access: yes, 2018
After stars formed in the early Universe, their ultraviolet light is expected, eventually, to have penetrated the primordial hydrogen gas and altered the excitation state of its 21-centimetre hyperfine line.
Bowman, Judd D.   +4 more
core   +1 more source

Applications of Abundance Data and Requirements for Cosmochemical Modeling [PDF]

open access: yes, 2001
Understanding the evolution of the universe from Big Bang to its present state requires an understanding of the evolution of the abundances of the elements and isotopes in galaxies, stars, the interstellar medium, the Sun and the heliosphere, planets and
Binns, W. R.   +13 more
core   +2 more sources

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