Programa de Doctorat en Recursos Naturals i Medi Ambient: Recent submissions
Now showing items 21-40 of 60
Metodologies singulars per a l'aprenentatge en l'aprofitament tecnològic dels recursos de la natura
For years, we are in the middle of a crisis of scientific and technological vocations, which is found year after year in the number of students enrolled in science and technology studies. If that trend continues, there ...
Geochemical and metallogenic model of the Santa Fe Sn-Zn-Pb-Ag-(In) deposit in the Central Andean tin belt
The Santa Fe mining district is located in the Central Andean tin belt and contains several Sn-Zn-Pb-Ag deposits. From the economic point of view, the most important deposits of the district are Japo, Santa Fe and Morococala. ...
In situ groundwater remediation treatments : natural denitrification study and nano zero valent iron production
Freshwater is a scarce resource, threatened by an ongoing pollution, global climate change and industrialization. Among other freshwater sources, groundwater is by far the most important source of usable freshwater but due ...
Biomecànica dels dits de la mà com a factor pronòstic de la recuperació funcional de l'extremitat parètica en pacients amb ictus aguts.
Stroke is one of the most serious and common public health problems. Impairment of the upper extremity (UE) following stroke affects 50 - 80 % of patients. Full UE function is achieved in 79 % of patients with initial mild ...
Diseño, caracterización y aplicación de microelectrodos para el estudio de biopelículas sulfuroxidantes
This thesis is focused on the development of microsensors specially designed for biofilms monitoring and on the application of these devices to study and characterize different biofilms. Using micro-electromechanical ...
Some approaches to improve the ventilation system in underground potash mines
Mine ventilation is a crucial factor for the sake of underground operations. Not only does it affect efficiency and effectiveness rates, but it also influence the health and safety of the employees. Despite it is a topic ...
Adsorption of organic and emerging pollutants on carbon materials in aqueous media : environmental implications
In the last two decades an increasing presence of organic substances such drugs, pesticides, etc. has been detected in water which may affect the health of the organisms and the environment. Some of these contaminants ...
Les metapoblacions de llucareta (Serinus citrinella) del Prepirineus orientals : valoració ecològica i bases per a la seva gestió
The Citril finch has been considered for a long time as a species linked to forested high mountainous areas. It was considered as non-migratory and with short-range movements, just to avoid bad weather conditions. For a ...
Compostos orgànics volàtils i semivolàtils presents en aigua envasada : extracció i anàlisi mitjançant GC-MS
Organoleptic properties of water are the only means whereby a consumer can assess water quality and safety. Among these properties, taste and odour are the most important. The first part of this study displays the water ...
Multiple simulation experimental studies of gas emission, distribution and migration rules in mine ventilation system and goaf area
Gas problems have created severe difficulties for the mining industry around the world, leading to high expenditures and intensity research efforts, and determined attempts to enhance the various ventilation optimization ...
Estudi de biomarcadors lipídics en plantes de la conca mediterrània i les seves implicacions geoquímiques en sistemes aquàtics
This thesis firstly describes the chemical composition of the lipid fraction corresponding to the aerial parts, especially leaves of 22 plants, 16 of which are angiosperms, 3 gymnosperms, 1 fern, 1 moss and 1 alga. In these ...
Eliminació de H2S mitjançant biofiltres percoladors : millora de la transferència d'oxigen
In the current energy crisis and climate change context, energy use of biogas has gained relevance, since it is possible to get energy from waste, and also minimizes the emission of methane into the atmosphere. However, ...
Contribució a la caracterització del microscopi de força atòmica
Des de la seva creació, el microscopi de força atòmica (AFM) ha estat àmpliament utilitzat sobretot per la caracterització de superfícies, obtenint imatges topogràfiques amb una resolució espacial de l’ordre o fins i tot ...
Technical and environmental viability of membrane technologies in water treatment: NF in drinking water process and MBR for watewater reuse
La present tesi doctoral tracta de l’estudi de la tecnologia de membranes des d’un punt de vista aplicat: com és el cas de la nanofiltració (NF) pel tractament d’aigua potable i de l’ús d’un bioreactor de membranes (MBR) ...
Partitioning and speciation of trace elements at two coal-fired power plants equipped with a wet limestone flue gas desulphurisation (FGD) system.
Coal-fired power plants are a major source of emissions for a number of air pollutants including SO2, NOx, particulate matter (PM), HCl, HF, and Hg amongst. In this work, intensive sampling campaigns were carried out at ...
Museos y colecciones mineralógicas catalanas: historia, gestión, divulgación y patrimonio
En el presente trabajo se hace una recopilación histórica de la mineralogía catalana desde el siglo XVI hasta principios del siglo XIX, a través de las diferentes instituciones que han fomentado la investigación y la ...
Biofiltració de contaminants gasosos en aire: caracterització de paràmetres clau per l'estudi i modelització del creixement de biomassa
Biofiltration has become an effective and economical alternative to traditional gas treatment systems. High costs of operation and energy consumption associated to conventional treatments have lead to increase the attention ...
Sistemas de gestión en explotaciones mineras de cataluña: situación, factores determinantes de implantación y posibilidades futuras: sector de los áridos y de la piedra natural
En la economía global, la minería desarrolla un papel fundamental puesto que aporta materias primeras y fuentes de energía necesarias para distintos procesos industriales. Los impactos que provoca sobre el medioambiente y ...
Study of Denitrification and Reductive Dechlorination Processes Applied to Groundwater Bioremediation
La present tesi es basa en l'estudi dels processos de bioremediació com a tecnologies de descontaminació d'aqüífers.<br/>Concretament, es pretén estudiar la desnitrificació i la decloració reductiva com a tecnologies de ...
Virtual human hand: grasping strategy and simulation
La mano humana es una herramienta muy completa, capaz de adaptarse a diferentes superficies y formas, y también tocar y coger. Es una conexión directa entre el mundo exterior y el cerebro. I.Kant (filosofo alemán) definió ...
