Exploració per tema "Geochemistry"
Ara es mostren els items 1-20 de 24
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Application of magnesium oxide for metal removal in mine water treatment
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-28)
Article
Accés obertIn this study low-grade magnesium oxide (MgO) produced by calcinations of natural magnesite was used in mine water treatment using a laboratory-column device. The treatment of mine water from the abandoned Osor mine (NE ... -
Carbon dioxide and helium dissolved gases in groundwater at central Tenerife Island, Canary Islands: chemical and isotopic characterization
(2015-10)
Article
Accés restringit per política de l'editorialSeismic-volcanic unrest was detected between 2004 and 2005 in the central and northwest zones of Tenerife Island (Canary Islands, Spain). With the aim of strengthening the program of geochemical and seismic-volcanic ... -
Characterizing the automatic radon flux transfer standard system autoflux: laboratory calibration and field experiments
(European Geosciences Union (EGU), 2023-05-31)
Article
Accés obertHigh-quality, long-term measurements of terrestrial trace gas emissions are important for investigations of atmospheric, geophysical and biological processes to help mitigate climate change and protect the environment and ... -
Estudi geoambiental del marge dret del riu Onyar (Les Gavarres)
(Universitat Politècnica de Catalunya, 2016-10-17)
Projecte/Treball Final de Carrera
Accés obert -
Evaluation of hyper-cross-linked polymeric sorbents (Macronet MN200 and MN300) on dye (Acid red 14) removal process
(2008-03)
Article
Accés restringit per política de l'editorialPolymeric supports are presented as an alternative to granular activated carbon (GAC) for organic contaminants removal from waste waters from industrial processes. The present work describes the sorption of an azo dye (Acid ... -
Finding hidden chemistry in ancient egyptian artifacts: Pigment degradation taught in a chemical engineering course
(2015-03-01)
Article
Accés restringit per política de l'editorialThe main objective of this work was to show the application of the study of ancient technology and science on teaching (and learning) chemistry in Chemical Engineering Undergraduate studies. Degradation patterns of pigments ... -
Fuzzy inputs and missing data in similarity-based heterogeneous neural networks
(Springer, 1999)
Text en actes de congrés
Accés obertFuzzy heterogeneous networks are recently introduced neural network models composed of neurons of a general class whose inputs and weights are mixtures of continuous variables (crisp and/or fuzzy) with discrete quantities, ... -
Geochemical processes during the geological CO2 sequestration. a laboratory study of the reactivity of the hontomín caprock and of potential MgO-based cements
(Universitat Politècnica de Catalunya, 2013-07)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor -
Geoquímica de les platges del litoral de la Costa Brava (Girona)
(Universitat Politècnica de Catalunya, 2017)
Treball Final de Grau
Accés obertEs tracte d'analitzar les sorres de les platges del litoral gironí de la costa brava, des de el Cap de Begur fins la Tordera, amb la fi i efecte de determinar la composició de les sorres aportades per les rieres i reditribuides ... -
Geostandards of the Valentí Masachs Geology Museum
(Universitat Politècnica de Catalunya, 2016)
Conjunt de dades / Imatge
Accés obert -
Implementar en entorno web el programa Source Seeker de determinación de procedencia de obsidiana
(Universitat Politècnica de Catalunya, 2018-09-10)
Treball Final de Grau
Accés obertEl objetivo principal de este proyecto consiste en iniciar la implementación del programa SourceSeeker en un entorno web, diseñando una interfaz de usuario nueva que permita a cualquier persona hacer uso del programa desde ... -
Interacció entre aigua rica en CO2 amb ciment en cotacte amb roca màfica
(Universitat Politècnica de Catalunya, 2020-01-27)
Treball Final de Grau
Accés obert
Realitzat a/amb: Consejo Superior de Investigaciones CientíficasEl incremento de la concentración del CO2 en la atmósfera es la principal causa del cambio climático. Uno de los métodos efectivos para reducir la concentración de CO2, es el secuestro geológico del CO2 en formaciones ... -
Linking biofilm spatial structure to real-time microscopic oxygen decay imaging
(2018-02)
Article
Accés obertTwo non-destructive techniques, confocal laser scanning microscopy (CLSM) and planar optode (VisiSens imaging), were combined to relate the fine-scale spatial structure of biofilm components to real-time images of oxygen ... -
Lithogeochimical exploration in a Hercynian Tin-bering batholith in the Northwest of the Iberian Península
(Consejo Superior de Investigaciones Científicas (CSIC), 1990-09)
Article
Accés obertEl Batolito hercinico de Ricobayo, al que se encuentran asociadas genéticamente mineralizaciones de estaño, ha sido objeto de un estudio litogeoquimico con el fin de comprobar la efectividad de tales metodos en la ... -
Modeling reactive multi-component multi-phase flow for Geological Carbon Sequestration (GCS) with Matlab
(2023-03)
Article
Accés restringit per política de l'editorialWe present a reactive multi-component multi-phase flow program for simulating Geological Carbon Sequestration (GCS), an approach that reduces carbon emissions by storing in deep subsurface formations. The program, called ... -
New observations on high-pressure phases in a shock melt vein in the Villalbeto de la Pena meteorite: insights into the shock behavior of diopside
(2019-09-27)
Article
Accés obertThe petrology and mineralogy of shock melt veins in the L6 ordinary chondrite host of Villalbeto de la Peña, a highly shocked, L chondrite polymict breccia, have been investigated in detail using scanning electron microscopy, ... -
Nitrate and nitrite reduction by ferrous iron minerals in polluted groundwater: Isotopic characterization of batch experiments
(2020-08-20)
Article
Accés obertSince nitrate (NO3-) has been related to human health and environmental problems, safe and sustainable strategies to remediate polluted water bodies must be investigated. This work aims to assess the feasibility of using ... -
Petrography and geochemistry of exported colombian coals: implications from correlation and regression analyses
(Elsevier BV, 2021-07)
Article
Accés obert -
Predicting instrumental mass fractionation (IMF) of stable isotope SIMS analyses by response surface methodology (RSM) [Dataset]
(Universitat Politècnica de Catalunya, 2017-02)
Conjunt de dades
Accés obertInstrumental mass fractionation (IMF) of isotopic SIMS analyses (Cameca 1280HR, CRPG Nancy) was predicted by response surface methodology (RSM) for 18O/16O determinations of plagioclase, K-feldspar and quartz. The three ... -
Regional and urban evaluation of an air quality modelling system in the European and Spanish domains
(Universitat Politècnica de Catalunya, 2011-11-22)
Tesi
Accés obertEl impacto de la contaminación del aire es un tema crítico para el medioambiente y el clima. Una mala calidad del aire es un tema de importancia para la salud pública, especialmente en ambientes urbanos. El material ...