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Non-traditional stable isotope variations in the impactites of the Rochechouart impact structure - Tracing impact volatilization, melting, mixing, and hydrothermal overprinting Vrije Universiteit Brussel
Non-traditional stable isotope variations in the impactites of the Rochechouart impact structure - Tracing impact volatilization, melting, mixing, and hydrothermal overprinting Vrije Universiteit Brussel
Study of photon induced volatilization of copper and process control of metal etch plasmas. KU Leuven
The goal of this thesis was to study the plasma etching process ofmetals (specifically copper) in order to develop a new method for making copperinterconnects for microelectronics applications. This new process could offeran alternative for the damascene process to create nanoscale copper features. Ideally,a higher temperature etch process is developed, however hardware limitationsrequired to put the emphasis on the development of a ...
DISENTANGLING CRATERING PROCESSES USING NON-TRADITIONAL ISOTOPE RATIOS ON CORE M0077A OF THE IODP-ICDP EXPEDITION 364 IN THE CHICXULUB IMPACT STRUCTURE Vrije Universiteit Brussel
Introduction: The Chicxulub impact structure, located on the Yucatán peninsula of Mexico, has been drilled by the IODP-ICDP Expedition 364 in 2016. A continuous sequence of the upper peak-ring has been retrieved from Site M0077A. This core is from top to bottom composed of ~110 m of Paleogene sediments, ~130 m of suevite and impact melt rocks, and ~590 m of crystalline and metamorphic basement lithologies [1]. The suevite complex deposition is ...
Evidence for a chondritic impactor, evaporation-condensation effects and melting of the Precambrian basement beneath the ‘target’ Deccan basalts at Lonar crater, India Vrije Universiteit Brussel Universiteit Gent KU Leuven
The ∼1.88 km diameter Lonar impact crater formed ∼570 ka ago and is an almost circular depression hosted entirely in the Poladpur suite of the ∼65 Ma old basalts of the Deccan Traps. To understand the effects of impact cratering on basaltic targets, commonly found on the surfaces of inner Solar System planetary bodies, major and trace element concentrations as well as Nd and Sr isotopic compositions were determined on a suite of selected samples ...
Australasian microtektites across the Antarctic continent : evidence from the Sør Rondane Mountain range (East Antarctica) Universiteit Gent Vrije Universiteit Brussel
Release of mercury during contact metamorphism of shale: Implications for understanding the impacts of large igneous province volcanism Vrije Universiteit Brussel
Elevated mercury (Hg) in sedimentary strata are a widely used tracer for assessing the relationship between large igneous province (LIP) activity and global environmental change. A key unknown in applying this proxy is the extent to which Hg was sourced from contact metamorphism of sedimentary rocks during sill intrusions versus gaseous emissions of the magmas themselves. Here, we investigate Hg behaviour during contact metamorphism of shales. ...
Machine learning based prediction of biomass pyrolysis with detailed reaction kinetics for thermally-thick particles : from 1D to 0D Universiteit Gent
In reactor-scale CFD modeling of biomass pyrolysis with thermally-thick particles, zero-dimensional (0D) models coupled with lumped kinetics are commonly used, as they are simple and computationally efficient. However, intra-particle heat transfer, which cannot be directly implemented in 0D models, has significant effects on pyrolysis behaviors of thermally-thick biomass particles. Additionality, lumped kinetics usually fails to predict detailed ...
Impact of aeration on the removal of organic matter and nitrogen compounds in constructed wetlands treating the liquid fraction of piggery manure Universiteit Gent
The increasing demand for sustainable, robust and cost-efficient wastewater treatment techniques strengthen the implementation of constructed wetlands (CWs) in the agricultural sector. In countries like Belgium (Flanders), the compliance of strict water quality standards and surface area requirements have hindered considerably their application. New wetland designs such as aerated CWs, could help to overcome these challenges. This study ...