Listar por autor "Delgado Martín, Jordi"

Mostrando ítems 1-20 de 26

    • 6th International Workshop on Rock Physics: A Coruña, Spain 13 -17 June 2022: Book of Abstracts 

      Delgado Martín, Jordi; Muñoz-Ibáñez, Andrea; Falcón-Suárez, Ismael Himar (Universidade da Coruña, Servizo de Publicacións, 2022)
      [Abstract] The 6th International Workshop on Rock Physics (6IWRP) was held A Coruña, Spain, between 13th and 17th of June, 2022. This meeting follows the track of the five successful encounters held in Golden (USA, 2011), ...

    • A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins 

      Mantzouki, Evanthia; Leira, Manel; Hernández, Armand; Delgado Martín, Jordi (Springer Nature, 2018)
      [Abstract:] Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers ...

    • An UAV and Satellite Multispectral Data Approach to Monitor Water Quality in Small Reservoirs 

      Cillero Castro, Carmen; Domínguez Gómez, José Antonio; Delgado Martín, Jordi; Hinojo Sánchez, Boris Alejandro; Cereijo Arango, José Luis; Cheda Tuya, Federico Andrés; Díaz-Varela, Ramón Alberto (MDPI, 2020)
      [Abstract] A multi-sensor and multi-scale monitoring tool for the spatially explicit and periodic monitoring of eutrophication in a small drinking water reservoir is presented. The tool was built with freely available ...

    • Analysis of the reduction processes at the bottom of Lake Meirama: a singular case of lake formation 

      Juncosa, Ricardo; Delgado Martín, Jordi; Cereijo Arango, José Luis; Muñoz-Ibáñez, Andrea (Springer, 2023)
      [Abstract:] The formation of natural lakes is a process that takes place over thousands of years, although the volumetric formation depends on hydrological and climatological phenomena, reaching a stationary hydraulic ...

    • Anisotropic deformability and strength of slate from NW-Spain 

      Alejano, Leandro R.; González Fernández, Manuel Alejandro; Estévez-Ventosa, Xian; Song, Fei; Delgado Martín, Jordi; Muñoz-Ibáñez, Andrea; González-Molano, Nubia; Alvarellos-Iglesias, José (Elsevier, 2021)
      [Abstract:] Slates are metamorphic rocks characterized by the pervasive occurrence of cleavage or foliation producing a highly anisotropic mechanical behavior characterized by fissility. Deformability and strength of these ...

    • Anoxia begets anoxia: A positive feedback to the deoxygenation of temperate lakes 

      Lewis, Abigail S. L.; Delgado Martín, Jordi (Wiley, 2023)
      [Abstract:] Declining oxygen concentrations in the deep waters of lakes worldwide pose a pressing environmental and societal challenge. Existing theory suggests that low deep-water dissolved oxygen (DO) concentrations could ...

    • Las areniscas de la Mina Eureka (Cu-U-V) (Pirineo Central): texturas observadas versus reacciones planteadas 

      Costa, F.; Canals, A.; Delgado Martín, Jordi (Universidade da Coruña, 2000)

    • Conservation Agriculture Increases Profits in an Andean Region of South America 

      Delgado Martín, Jordi; Barrera Mosquera, Víctor; Escudero López, Luis Orlando; Cartagena Ayala, Y.E.; Alwang, Jeffrey R.; Stehouwer, R.C.; Arévalo Tenelema, J.C.; D’Adamo, Robert; Domínguez-Andrade, Juan Manuel; Valverde, F.; Alvarado Ochoa, Soraya (Wiley, 2019)
      [Abstract:] The Andean region of Ecuador is critical for the country's food security; however, cultivation of high-slope mountainous agricultural systems that experience significant precipitation is accelerating erosion ...

    • Conservation Agriculture Increases Yields and Economic Returns of Potato, Forage, and Grain Systems of the Andes 

      Barrera Mosquera, Víctor; Delgado Martín, Jordi; Alwang, Jeffrey R.; Escudero López, Luis Orlando; Cartagena Ayala, Y.E.; Domínguez-Andrade, Juan Manuel; D’Adamo, Robert (Wiley, 2019)
      [Abstract:] Physical and environmental vulnerability analysis conducted for the Illangama watershed located in Ecuador's Andean highlands, shows deteriorated soil quality and declining crop productivity. These problems are ...

    • Energy Absorption of Aluminium Extrusions Filled with Cellular Materials Under Axial Crushing: Study of the Interaction Effect 

      Paz Méndez, Javier; Costas, Miguel; Delgado Martín, Jordi; Romera, Luis; Díaz, J. (MDPI, 2020)
      [Abstract] This investigation focuses on the interaction effect during the quasi-static axial crushing of circular and square thin-walled aluminium extrusions filled with polymeric foam or cork. The increment in the absorbed ...

    • Estimating Economically Optimal Levels of Nitrogen Fertilizer in No-Tillage Continuous Corn 

      Villacis, Alexis H.; Ramsey, A. Ford; Delgado Martín, Jordi; Alwang, Jeffrey R. (Cambridge, 2020)
      [Abstract:] Stochastic plateau production functions provide improved fertilizer recommendations based on multi-year agronomic experiments where weather and other stochastic variables change over time. This research assesses ...

    • Experimental analysis of the pseudo-compact tension (pCT) testing configuration using two alternative sample geometries 

      Herbón-Penabad, Miguel; Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi (IOP Publishing, 2021)
      [Abstract:] The pseudo-compact tension (pCT) method recently proposed by Muñoz-Ibáñez et al. (2020) is a satisfactory approach to measure mode I fracture toughness (KIC) in rocks and other materials using disc-shaped samples ...

    • Experimental Device for the Determination of Fracture Toughness at High Pressure 

      Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi (IOP Publishing, 2023)
      [Abstract:] Mode I fracture toughness (KIC) is a relevant property in many applications involving rock mechanics. However, the conventional methods for its determination only consider ambient pressure conditions. Although ...

    • Hydrochemical Evolution of the filling of the Mining Lake of As Pontes (Spain) 

      Juncosa, Ricardo; Delgado Martín, Jordi; Cereijo Arango, José Luis; Muñoz-Ibáñez, Andrea (Springer Nature, 2019)
      [Abstract:] The old As Pontes lignite mine is located in northwest Spain, in the Galicia region. Filling of the 547 hm3 pit began at the end of January 2008 through the controlled input of surface water. The filling was ...

    • Hydrochemical stratigraphic analysis of the filling of the Meirama mine shaft I: monitoring and filling 

      Juncosa, Ricardo; Delgado Martín, Jordi; Cereijo Arango, José Luis (Springer Nature, 2024)
      [Abstract:] The application of an old open-pit lignite mine as an auxiliary reservoir for the supply of the city of La Coruña has involved a detailed analysis of the chemical quality of the vertical profile. The study has ...

    • Hydrofracturing tests on granite samples using a true triaxial device equipped with acoustic emission sensors 

      Herbón-Penabad, Miguel; Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi; González-Molano, Nubia; Alvarellos-Iglesias, José; Canal, Jacobo (IOP Publishing Ltd, 2021)
      [Abstract:] We present a series of tests performed on granite samples using a true triaxial device designed and built at the Rock Mechanics Laboratory (University of A Coruña). The experiments were performed using cubic ...

    • Hydrostatic, strike-slip and normal stress true triaxial hydrofracturing testing of Blanco Mera Granite: breakdown pressure and tensile strength assessment 

      Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi; Alejano, Leandro R.; Alvarellos-Iglesias, José; Canal, Jacobo (Springer, 2023)
      [Abstract:] We have designed and built a versatile testing device to perform hydraulic fracturing experiments under true triaxial conditions. The device, based on a stiff biaxial frame that can be installed in a servocontrolled ...

    • Photoelastic Stress Analysis of Mode I Fracture Toughness Tests Using PMMA Samples 

      Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi (IOP Publishing Ltd, 2021)
      [Abstract] Rocks are usually inhomogeneous and anisotropic materials. The presence of foliation planes, grain boundaries or even microcracks may alter the stress distribution. In order to identify whether unusual behaviours ...

    • Plastic Debris in Lakes and Reservoirs 

      Nava, Verónica; Chandra, Sudeep; Aherne, Julian; Alfonso, María Belén; Antão-Geraldes, Ana Maria; Attermeyer, Katrin; Bao, Roberto; Bartrons, Mireia; Berger, Stella A.; Biernaczyk, Marcin; Bissen, Raphael; Brookes, Justin D.; Brown, David; Cañedo-Argüelles, Miguel; Canle, Moisés; Capelli, Camilla; Carballeira, Rafael; Cereijo Arango, José Luis; Chawchai, Sakonvan; Christensen, Søren Thromsholdt; Christoffersen, Kirsten Seestern; Eyto, Elvira de; Delgado Martín, Jordi; Dornan, Tyler; Doubek, Jonathan; Dusaucy, Julia; Erina, Oxana; Ersoy, Zeynep; Feuchtmayr, Heidrun; Frezzotti, Maria Luce; Galafassi, Silvia; Gateuille, David; Gonçalves, Vítor; Grossart, Hans-Peter; Hamilton, David P.; Harris, Theodore; Kangur, Külli; Başaran Kankılıç, Gökben; Kessler, Rebecca; Kiel, Christine; Krynak, Edward M.; Leiva-Presa, Àngels; Lepori, Fabio; Matias, Miguel G.; Matsuzaki, Shin-ichiro; McElarney, Yvonne; Messyasz, Beata; Mitchell, Mark; Mlambo, Musa C.; Motitsoe, Samuel Nkopane; Nandini, S.; Orlandi, Valentina; Owens, Caroline; Özkundakci, Deniz; Pinnow, Solvig; Pociecha, Agnieszka; Raposeiro, Pedro; Rõõm, Eva-Ingrid; Rotta, Federica; Salmaso, Nico; Sarma, S. S. S.; Sartirana, Davide; Scordo, Facundo; Sibomana, Claver; Siewert, Daniel; Stepanowska, Katarzyna Ewa; Tavşanoğlu, Ülkü Nihan; Tereshina, Maria; Thompson, James; Tolotti, Monica; Valois, Amanda; Verburg, Piet; Welsh, Brittany; Wesolek, Brian; Weyhenmeyer, Gesa; Wu, Naicheng; Zawisza, Edyta; Zink, Lauren; Leoni, Barbara (Springer Nature, 2023)
      [Abstract] Plastic debris is thought to be widespread in freshwater ecosystems globally1. However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3. Here we present ...

    • Procesos geoquímicos inducidos por el efecto combinado del calor y la hidratación de bentonitas compactadas 

      Vázquez-Gonzalez, Ana; Juncosa, Ricardo; Samper, Javier; Montenegro, Luis; Delgado Martín, Jordi (Universidade da Coruña, 2000)