Universitat Politècnica de Catalunya
Ara mostrant els elements 1-20 de 24
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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. ...
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 ...
During the last decades deep changes have taken place in the competitive environment, which have forced companies to focus on strategies that allow them to differentiate themselves from their competitors and gain consumer ...
This thesis is focused on the development of one-phase and multiphase models using computational fluid dynamics (CFD) techniques to analyze biosystems behavior at mesoscale. In the first part, the operation of a fixed-bed ...
L’objectiu principal de la present Tesi Doctoral és verificar mitjançant tècniques de la Dinàmica de Fluids Computacional (CFD) la hipòtesi de que el Mòdul Hidromètric (MH) de la Sèquia de Manresa, construït durant el segle ...
Comminution is the most energy consuming process in mining industry, where nearly 60 % of the electricity expenditure is due to grinding purposes. In the nature most of the ore minerals are found, finely disseminated and ...
With the general trend across all commodities towards the treatment of lower grade and medium grade ores, it is becoming increasingly important to develop the proper design for comprehensive mineralogical characterization ...
The granitic basement below the Triassic unconformity in the Guilleries and Roc de Frausa massifs (NE Iberia), presents widespread red stained facies characterized by plagioclase albitization, biotite chlhoritization, ...
In the current economical context, the use of waste material with economic potential should be a priority. In this sense, the increasing production of electrical and electronic equipment waste (WEEE) makes these materials ...
The growth in world population has led to a significant increase in the generation of wastes (solid, liquid and gaseous). Waste gas is probably the major issue in the case of waste treatment, due to the fact that once the ...
The main objective of this PhD thesis is the study of coal mine dust patterns produced by different types of mining operations and different types of coal. In addition, the potential links between oxidative potential (OP) ...
This thesis has aimed to improve the hydrogeological knowledge of the Port del Comte Massif (PCM), a karstic aquifer system located in the south-eastern sector of the Pyrenees that plays a strategic role in the provision ...
