The aim of this paper is to assess the suitability DGT extract kinetic rates desorption cesium (Cs) from soils. For purpose, laboratory experiments with a natural soil spiked Cs were carried out under three different contamination conditions, reflecting either an increase in level or ageing within soil. experimental results, i.e. accumulation kinetics onto probes interpreted by DGT-PROFS model....

Sediment dredging is a common remediation tool for polluted water bodies. However, the long-term effects of on chromium (Cr) contamination remain unclear. This study was conducted to evaluate sediment Cr in Lake Taihu, six years after performed. In this study, high-resolution equilibrium dialysis (HR-Peeper) and diffusive gradients thin films (DGT) sampling techniques were used total dissolved ...

In this paper, we present two feature extraction techniques for the classification of ultrasonic NDE signals acquired from weld inspection regions of boiling water reactor piping of nuclear power plants. The classification system consists of a pre-processing block that extracts features from the incoming patterns, and of an artificial neural network that assigns the computed features to a parti...

In the medical imaging field, discrete gradient transform (DGT) is widely used as a sparsifying operator to define the total variation (TV). Recently, TV minimization has become a hot topic in image reconstruction and is usually implemented using the steepest descent method (SDM). Since TV minimization with the SDM takes a long computational time, here we construct a pseudo-inverse of the DGT a...

Abstract Phosphorus (P) availability, diffusion, and resupply processes can be altered by biochar addition in flooded rice rhizosphere, which controls the risk of P release to environment. However, there are few in-situ investigations these rhizospheric effects. To explore effects on soil high-resolution dialysis (HR-Peeper), diffusive gradients thin films (DGT), zymography techniques were used...

A major gap in understanding nanomaterials behaviour the environment is a lack of reliable tools to measure their available concentrations. In this research we use diffusive gradients thin films (DGT) for measuring concentrations zinc oxide nanoparticles (ZNO NPs) soils. Available nanoparticle were assessed by difference, using paired DGT devices with and without 1000 MWCO dialysis membranes ex...

Passive sampling devices accumulate chemicals continuously from water and can provide time weighted average (TWA) concentrations of pollutants over the exposure period. Hence, they offer a number of advantages over other conventional monitoring techniques such as spot or grab sampling. The diffusive gradient in thin film (DGT) and the Chemcatcher passive samplers can be used to provide TWA conc...

A device has been developed for the direct in situ measurement of metal remobilization into solution from settling particles in water columns, based on the technique of diffusion gradients in thin films (DGT). The device comprises a hollow cylinder with a DGT assembly at its base and acts as a traditional sediment trap, except that any remobilization from settling particles is reflected in the ...