Results 11 to 20 of about 33,794 (304)

Resistivity and Specific Volume in Magnetic Materials [PDF]

open access: yes, 2013
The correlation between resistivity and volume changes in manganite of system LaMnO3 under the influence of temperature T, hydrostatic pressure P and magnetic field H was considered. It was shown that each of the factors T, P. H gives its contribution in the amount of the resistivity, which is determined by the specific or molar volume of the material.
Polyakov, P.I., Ryumshyna, T.A.
openaire   +3 more sources

Electric Volume Resistivity for Biopolyimide Using 4,4'-Diamino-α-truxillic acid and 1,2,3,4-Cyclobutanetetracarboxylic dianhydride. [PDF]

open access: yesPolymers (Basel), 2019
Biopolyimides poly(ATA-CBDA), made from of 4,4′-diamino-α-truxillic acid dimethyl ester (ATA) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride (CBDA), is synthesized and measured its electric volume resistivity at various experimental ...
Kato S   +6 more
europepmc   +2 more sources

An Extension of the Data-Adaptive Probability-Based Electrical Resistivity Tomography Inversion Method (E-PERTI)

open access: yesGeosciences, 2020
About a decade ago, the PERTI algorithm was launched as a tool for a data-adaptive probability-based analysis of electrical resistivity tomography datasets.
Marilena Cozzolino   +2 more
doaj   +1 more source

An anisotropic model for the electrical resistivity of two-phase geologic materials [PDF]

open access: yes, 2010
Electrical and electromagnetic surveys of the seafloor provide valuable information about the macro and microscopic properties of subseafloor sediments.
Jeremy Sothcott   +9 more
core   +1 more source

Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography [PDF]

open access: yes, 2012
In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited.
Musso, Guido   +6 more
core   +1 more source

Resolution of electrical imaging of fluid movement in landfills [PDF]

open access: yes, 2011
This paper investigates the efficacy of time-lapse electrical imaging using surface electrodes to monitor the movement of leachate within a landfill. A laboratory-based study allowed direct comparison between observed physical dewatering and time-lapse ...
Barker, R.D., Jolly, J.M., Beaven, R.P.
core   +1 more source

Influences of water and oil two-phase on electrical resistivity of oil-contaminated soils

open access: yesYantu gongcheng xuebao, 2017
In order to study the electrical resistivity of oil-contaminated soils, the diesel-contaminated soils and kerosene-contaminated soils with different water contents, oil contents are mixed in the laboratory by hand.
LIU Song-yu 1, 2, BIAN Han-liang 1, 2, CAI Guo-jun 3, CHU Ya 1, 2
doaj   +1 more source

Airway Resistance and Lung Volume in the Newborn Infant [PDF]

open access: yesPediatric Research, 1969
Extract: The total body plethysmograph method of DuBois et al. [7] for measurement of lung volume and airway resistance was adapted to the study of newborn infants. A Rendell-Baker mask directly controlled by the operator proved by trial and error to minimize the chances of pressure leaks and undesirable pressure on the nose and allowed the mandible to
G F, Doershuk, L W, Matthews
openaire   +2 more sources

3D-electrical resistivity tomography monitoring of salt transport in homogeneous and layered soil samples [PDF]

open access: yes, 2011
Monitoring transport of dissolved substances in soil deposits is particularly relevant where safety is concerned, as in the case of geo-environmental barriers.
Cosentini, Renato Maria   +13 more
core   +1 more source

An experimental study of salt/heat transport in a fracture-matrix system based on the resistivity method

open access: yesShuiwen dizhi gongcheng dizhi, 2023
In order to explore the effectiveness of salt and heat tracers in a fracture-matrix system, a fracture-matrix test model is designed. The tracer tests with different tracers are carried out.
Rui DING   +4 more
doaj   +1 more source

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