نتایج جستجو برای: soil resistivity
تعداد نتایج: 192189 فیلتر نتایج به سال:
This paper presents a mathematical algorithm and an electronic device to study soil resistivity. The system was based on introducing time-varying electrical signal into the by using two electrodes then collecting response of soil. Hence, proposed relied single-phase DC-to-AC converter followed transformer for soil-to-circuit coupling. By maximum likelihood statistical method, realized discern n...
Soil conductivity is responsible for its aggressive behavior to metallic objects either in contact or buried the ground. Rapid deterioration and eventual rupture of pipelines leading ultimately crude oil spillages have been economic as well environmental concern. Although many factors contribute soil resistivity, these relationships hardly quantitatively expressed. This paper explores affecting...
Soil salinity is becoming one of the most devastating environmental hazards over years. investigation involves fast, low cost and non disturbing methods to measure soil characteristics for both construction projects as well agricultural use. The electrical resistivity saline soils greatly governed by salt concentration presence moisture in matrix. Experimental results this highlight that there ...
In times of global change, it is fundamental importance to understand the sensitivity, stability and resistivity a landscape or ecosystem human disturbance. Landscapes ecosystems have internal thresholds, giving them ability resist such When these thresholds are quantified, development countermeasures can help prevent irreversible changes support adaptations negative effects change. The main ob...
This work describes the application of the electrical resistivity (ER) method to delineating subsurface structures and cavities in Kuala Lumpur Limestone within the Batu Cave area of Selangor Darul Ehsan, Malaysia. In all, 17 ER profiles were measured by using a Wenner electrode configuration with 2 m spacing. The field survey was accompanied by laboratory work, which involves taking resistivit...
Despite its importance for hydrological and ecological soil functioning, characterizing, quantifying structure in the field remains a challenge. Traditional characterization of often relies on point measurements, more recently, we advanced use minimally invasive geophysical methods that operate at plot-field scales provide information under natural conditions. In this study, expand application ...
With the continuous improvement of construction ecological economic system in new era, problem heavy metal pollution has become an important issue urban construction. In this paper, Zn2+ contaminated red clay is used as research object, and calcium superphosphate oxide are curing agents to conduct simultaneous test unconfined compressive strength-resistivity. The mechanical properties resistivi...
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