A5079004999- Geophysical and Geoelectrical Methods
- Luminescence Properties of Advanced Materials
- Glass properties and applications
- NMR spectroscopy and applications
- Electrokinetic Soil Remediation Techniques
- Groundwater flow and contamination studies
- Lanthanide and Transition Metal Complexes
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Electrostatics and Colloid Interactions
- Enhanced Oil Recovery Techniques
- Seismic Waves and Analysis
- Geophysical Methods and Applications
- Hydrocarbon exploration and reservoir analysis
- Soil and Unsaturated Flow
- Solid State Laser Technologies
- Semiconductor Quantum Structures and Devices
- Nanopore and Nanochannel Transport Studies
- Earthquake Detection and Analysis
- Geotechnical Engineering and Underground Structures
- Inorganic Fluorides and Related Compounds
- Drilling and Well Engineering
- Advanced Data Processing Techniques
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
Thuyloi University
2016-2024
University of Amsterdam
2015-2016
Eu-doped CdS quantum dots with the Eu dopant concentration in range of 0.5–10% and zinc blende structure were successfully synthesized by a wet chemical method noncoordinating solvent.
SUMMARY Electrical conductivity is one of the most commonly used geophysical method for reservoir and environmental studies. Its main interest lies in its sensitivity to key properties storage transport porous media. quantitative use therefore depends on efficiency petrophysical relationship link them. In this work, we develop a new physically based model estimating electrical saturated The derived assuming that media represented by bundle tortuous capillary tubes with fractal pore-size...
Abstract Liquid water in frozen porous media provides the path for moisture and solute migration, which is one of essential problems to study thaw‐weakening frost‐heave freezing region engineering. Determining monitoring liquid saturation permeability saturated are therefore critical issues cold regions. To this end, geophysical methods tools choice given their non‐invasive nature. Electrical conductivity as a physical property related both bulk characteristics medium submitted temperatures,...
Tunable copper doped Zn1-x Cd x S alloy quantum dots (QDs) were successfully synthesized by the wet chemical method. A one-step method is developed to synthesize ternary QDs which more preferable than a two-step The influence of experimental parameters like Zn/Cd ratio and Cu dopant concentration has been investigated using various spectroscopic techniques UV-visible, photoluminescence, X-ray diffraction Raman spectroscopy. absorption emission properties can be tuned changing components QDs....
Abstract The quantitative determination of liquid water content and salinity in soils is crucial for the preservation hydrological environments engineering infrastructures, especially frozen regions. Electrical conductivity, as a fundamental physical parameter electrical electromagnetic non‐destructive techniques, varies significantly with chemical properties, such pore salinity, saturation, temperature. In this study, accounting size tortuous length following fractal distributions, we...
ABSTRACT Streaming potential is the result of coupling between a fluid flow and an electric current in porous rocks. The modified Helmholtz–Smoluchowski equation derived for capillary tubes mostly used to determine streaming coefficient media. However, best our knowledge, fractal geometry theory not yet applied analyse In this article, model media developed based on capillary. proposed expressed terms zeta at solid−liquid interface, minimum maximum pore/capillary radii, dimension, porosity...
SUMMARY In reservoir and environmental studies, the geological material characterization is often done by measuring its electrical conductivity. Its main interest due to sensitivity physical properties of porous media (i.e. structure, water content, or fluid composition). quantitative use therefore depends on efficiency theoretical models link them. this study, we develop a new physically based model that takes into account surface conductivity for estimating under partially saturated...
NaGdF4 nanocrystalline doped with different concentrations of Eu3+ ions were synthesized using the precipitation method. The structure and morphology material investigated through measurements XRD patterns SEM images, respectively. optical properties NaGdF4:Eu3+ studied in framework Judd-Ofelt theory which Ωλ parameters calculated by two methods: traditional method luminescence spectra self-referenced excitation spectra. In nanocrystalline, Gd3+ lattice act as sensitizer centers for under at...