Results 231 to 240 of about 2,260,127 (291)

Thirty years of glacier grounding line retreat in Antarctica. [PDF]

open access: yesProc Natl Acad Sci U S A
Rignot E   +16 more
europepmc   +1 more source

Proceedings of the Conference ‘Resistance 2011’

open access: yes, 2011
Insecticide Resistance Action Committee, IRAC
core  
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An Algorithm for Estimating the Grounding Resistance of Complex Grounding Systems Including Contact Resistance

IEEE Transactions on Industry Applications, 2015
In cases where the grounding system is buried in soils characterized by poor contact with the electrodes (e.g., karst and sandy terrains), the contact resistance frequently represents a dominant component of the total grounding resistance. In such cases, estimation of the grounding resistance by conventional formulas given in the literature is useless,
Jovan Trifunovic, Miomir Kostic
exaly   +2 more sources

Soil Resistivity Evaluation and Grounding System Resistance

open access: yes, 2018
This chapter contains the factors affecting the soil resistivity and grounding resistance such as the soil moisture content, soil mineral content and soil temperature. It discusses the methods of measuring of soil resistivity and grounding resistance using Wenner method.
openaire   +2 more sources

A Method for Calculating Grounding Resistance of Reinforced Concrete Foundation Grounding Systems

open access: yesEnergies, 2022
Tower foundations have been used as grounding electrodes to reduce the area of the grounding devices. However, it is difficult to calculate the grounding resistance due to the complex structure of the reinforced concrete foundation.
Bo Zhang, Bowen Dou
exaly   +2 more sources

Ground resistance-revisited

IEEE Transactions on Power Delivery, 1989
The nature of ground resistance is examined to explain the high impedance of faults directly to ground as contrasted to conventionally assumed low-impedance ground faults to neutral conductors or to towers with low footing resistance. High-impedance faults are shown to be inherently nonlinear due to the characteristics of soil.
D.I. Jeerings, J.R. Linders
openaire   +2 more sources

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