Listando por materia "504"
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A Circular Economy Approach to Urban Agriculture: an Environmental Assessment
El subministrament d’aliments a les zones urbanes en creixement segueix una tendència lineal: les ciutats consumeixen una gran quantitat d’aliments importats alhora que generen residus i impactes ambientals en diferents ...
A contribution to the use, modelling and organization of data in biodiversity conservation
Aquesta tesi fa una contribució al tractament de les limitacions en les dades de biodiversitat, presències d'espècies, per a produir mapes útils en la conservació de la biodiversitat mitjançant l'ús dels models de distribució ...
A deterministic model for lake clarity; application to management of Lake Tahoe (California-Nevada), USA
This dissertation has as its goal the quantitative evaluation of the application of<br/>coupled hydrodynamic, ecological and clarity models, to address the deterministic prediction of water clarity in lakes and reservoirs. ...
A methodology to assess the combined effect of climate change and groundwater overexploitation over the Upper Guadiana basin, Spain
There is a growing concern about the combined effect of climate change and groundwater overexploitation on the availability of water resources in the Upper Guadiana basin (UppGb) in central Spain. General Circulation Models ...
A study of hybrid powertrains and predictive algorithms applied to energy management in refuse-collecting vehicles
There is an increasing demand for vehicles with lower environmental impact and higher fuel efficiency. To meet these requirements, powertrain hybridization has been introduced in both academia and industry during recent ...
A System of Integral Quality Indicators as a Tool for Beach Management
Esta tesis parte de la concepción de la playa como un sistema integral en el que se desarrollan procesos interrelacionados. El análisis de estos procesos y del marco físico y administrativo donde se producen, es el hilo ...
Abatement of siloxanes in sewage biogas: coupling adsorption and biological treatments
The anaerobic digestion of organic matter causes the formation of biogas that can be used in energy conversion systems for the production of electricity and heat, injection into the gas grid or as a fuel. However, biogas ...
Abundancia, uso del espacio, aprovechamiento e importancia económica de la perdiz roja silvestr (Alectoris rufa) en la provincia de Soria: directrices para su gestión cinegética
La caza menor en la provincia de Soria y en concreto la caza de la perdiz roja, constituye un aprovechamiento tradicional, que se viene practicando de forma social. A pesar de ello, la gestión de esta especie a nivel de ...
Adaptation before anthropogenic climate change: a historical perspective on adaptation to droughts in Terrassa (1600-1870s, NE Spain)
El canvi climàtic antropogènic és un fenomen relativament recent, però al llarg de la història les societats humanes s’han adaptat a la variabilitat climàtica, als extrems climàtics, i als canvis climàtics graduals. Pensar ...
Adapting forest management to climate change
Climate change is one of the most important challenges of the 21st century. The increase in the concentration of CO2 in the atmosphere, in temperatures, and changes in the precipitation pattern are expected to alter the ...
Addressing strategic environmental assessment in Mexico's transition towards renewable energy : geospatial approach of collective intelligence as prospective support in the planning process
The transition towards an environmentally sustainable society involves a substantial transformation of the configuration of the energy system, and therefore, it entails a significant shift in planning process strategy. ...
Adecuación y desarrollo de métodos de análisis de datos obtenidos mediante espectrometría gamma para la medida de la radiactividad ambiental en tiempo real
La Xarxa de Vigilància Radiològica Ambiental de la Generalitat de Catalunya està constituïda per diversos tipus de detectors per a la mesura automàtica en continu i en temps real de la radiació ambiental. Entre ells destaquen ...
Adopción de estándares de gestión energética e integración con estándares de gestión medioambiental
Se trata de una Tesis Doctoral realizada en la modalidad de Tesis Doctoral por artículos, con el objetivo de analizar, en una perspectiva comparada con relación a los Sistemas de Gestión Medioambiental, qué son y qué ...
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 ...
Advanced mathematical programming tools for alternative energy systems design
The goal of this thesis is to provide a systematic mathematical decision-support tool for the design of energy systems. Nowadays the society is becoming increasingly conscious about ecological problems originated by ...
Advanced thermal analysis of ReBCO superconductor precursor films and functional oxides
High temperature superconductivity and in particular YBa2Cu3O7-x (YBCO) coated conductors (CCs) are a crucial technology for the drastic reduction of CO2 emissions. Since nowadays YBCO CCs are not competitive economically, ...
Advances in life cycle assessment of plastics with mineral fillers in packaging applications
Mineral masterbatches, in other words mineral fillers, are concentrates of calcium carbonate or talc in a polymer base. In addition to their optimal cost, their use improves mechanical properties of materials and reduce ...
Advances in life cycle impact assessment of pesticides: methodological improvements and experimental studies
El objetivo principal de esta tesis doctoral es el de contribuir al desarollo y evaluación en la aplicación y exposición de pesticidas en plantas y su impacto sobre la salud humana y los ecosistemas. Los modelos ambientales ...
Advancing hydrological modeling for understanding drought dynamics in the Ebro river basin. The role of Land Surface Models in coupled natural-human systems
Les sequeres són un fenomen complex i multidimensional descrit en termes senzills com a períodes sostinguts de dèficit hídric en comparació amb les condicions normals. Encara que de caràcter global, les seves conseqüències ...
Aerobic biotrickling filtration for biogas desulfurization
Es va gestionar l'operació d'un biofiltre percolador (BTF) durant un període total de 990 dies per a la dessulfuració d'un biogàs sintètic contenint 2,000 ppmv d’H2S (≈ 50 g S-H2S·m-3·h-1), utilitzant un material de rebliment ...
