Ara es mostren els items 1-20 de 41

    • A stochastic linear model to evaluate the dielectric constant-electrical conductivity relation of a sandy soil using TDR records 

      Aljoumani, Basem; Sánchez Espigares, Josep Anton; Wessolek, G. (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Despite the importance of evaluating soil pore water electrical conductivity from soil bulk electrical conductivity in ecological and hydrological applications, it still has not been worked out very well. This study was ...
    • A visual tool for the analysis of usage trends of small and medium bicycle sharing systems 

      Cortez Ordóñez, Alexandra Piedad; Sánchez Espigares, Josep Anton; Vázquez Alcocer, Pere Pau (Elsevier, 2022-12)
      Article
      Accés obert
      The last two decades have exhibited a profound transformation of traditional urban mobility patterns partly due to the exponential growth in both number and popularity of public bicycle sharing systems (BSS). Analysis and ...
    • An approach to disaggregating total household water consumption into major end-uses 

      Fontdecaba Rigat, Sara; Sánchez Espigares, Josep Anton; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Cabrespina, Francesc; Zubelzu, Jordi (2013-01-27)
      Article
      Accés restringit per política de l'editorial
      The aim of this project is to assign domestic water consumption to different devices based on the information provided by the water meter. We monitored a sample of Barcelona and Murcia with flow switches that recorded ...
    • Analyzing temporal trends of urban evaporation using generalized additive models 

      Aljoumani, Basem; Sánchez Espigares, Josep Anton; Kluge, Björn; Wessolek, Gerd; Kleinschmit, Birgit (Multidisciplinary Digital Publishing Institute (MDPI), 2022-03-31)
      Article
      Accés obert
      This study aimed to gain new insights into urban hydrological balance (in particular, the evaporation from paved surfaces). Hourly evaporation data were obtained simultaneously from two high-resolution weighable lysimeters. ...
    • Brassica aphid (Hemiptera: Aphididae) populations are conditioned by climatic variables and parasitism level: a study case of Triângulo Mineiro, Brazil 

      Sampaio, M. V.; Korndörfer, A. P.; Pujade Villar, Juli; Hubaide, J.E.A.; Ferreira, S. E.; Arantes, S. O.; Bortoletto, D. M.; Guimarães, C. M.; Sánchez Espigares, Josep Anton; Caballero López, Berta (2017-03-20)
      Article
      Accés restringit per política de l'editorial
      Cosmopolitan pests such as Brevicoryne brassicae, Lipaphis pseudobrassicae, and Myzus persicae (Aphididae) cause significant damage to Brassicaceae crops. Assessment of the important biotic and abiotic factors that regulate ...
    • Changes in flood damage with global warming on the eastern coast of Spain 

      Cortés Simo, María; Turco, Marco; Ward, Philip J.; Sánchez Espigares, Josep Anton; Alfieri, Lorenzo; Llasat Botija, Carmen (2019-12-18)
      Article
      Accés obert
      Flooding is one of the main natural hazards in the world and causes huge economic and human impacts. Assessing the flood damage in the Mediterranean region is of great importance, especially because of its large vulnerability ...
    • Contagion between United States and european markets during the recent crises 

      Muñoz Gracia, María del Pilar; Márquez Cebrián, Dolores; Sánchez Espigares, Josep Anton (2011-07)
      Article
      Accés obert
      The main objective of this paper is to detect the existence of financial contagion between the North American and European markets during the recent crises. To accomplish this, the relationships between the US and the Euro ...
    • Desarrollo de técnicas estadísticas basadas en computacion intensiva para el análisis de medidas repetidas 

      Sánchez Espigares, Josep Anton (Universitat Politècnica de Catalunya, 2021-04-09)
      Tesi
      Accés obert
      This thesis includes contributions to statistical methodologies and practical applications in situations where data has been obtained as a result of repeated measures. The first block includes a first article where different ...
    • Disseny i implementació d’un cas pràctic d’introducció a l’estadística basat en la presa de decisions realistes sobre dades simulades 

      Tort-Martorell Llabrés, Xavier; Camps Lorente, Oriol; Grima Cintas, Pedro; Marco Almagro, Lluís; Puig Oriol, Xavier; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Riba Civil, Alexandre; Berenguer Guerra, Victor; Jurado Margarit, Adriana; Magriñà Amat, Carlos (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
      Text en actes de congrés / Comunicació de congrés
      Accés obert
      Un diagnòstic de les pràctiques d'estadística va portar a proposar per a una nova assignatura un joc competitiu en línia de presa de decisions basades en l'estadística. Aquest utilitza dades simulades i un web en què ...
    • Elaboració de material docent per a assignatures d'estadística industrial 

      Marco Almagro, Lluís; Grima Cintas, Pedro; Rodero de Lamo, Lourdes; Tort-Martorell Llabrés, Xavier; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Valls i Colom, Moisès; Corredoira González, Laura; Clot Razquin, Guillem; Fontdecaba Rigat, Sara (2009-02-12T13:11:17Z)
      Comunicació de congrés / Text en actes de congrés
      Accés obert
      La finalitat del projecte és elaborar material d'ajuda i suport a la docència per assignatures relacionades amb l'estadística industrial. Ens centrem fonamentalment en les assignatures “Mètodes estadístics de l’enginyeria ...
    • Estimating pore water electrical conductivity of sandy soil from time domain reflectometry records using a time-varying dynamic linear model 

      Aljoumani, Basem; Sánchez Espigares, Josep Anton; Wessolek, Gerd (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-13)
      Article
      Accés obert
      Despite the importance of computing soil pore water electrical conductivity (sp) from soil bulk electrical conductivity (sb) in ecological and hydrological applications, a good method of doing so remains elusive. The ...
    • Evaluating the variation of dissolved metals on a highway roadside using a generalized additive mixed model (GAMM) 

      Aljoumani, Basem; Kluge, Björn; Sánchez Espigares, Josep Anton; Wessolek, Gerd (Springer, 2019-04-01)
      Article
      Accés obert
      Assessing metal concentrations in roadside soils requires a better understanding of the extent to which they are affected by different environmental factors such as soil texture, depth, pH, runoff concentration, and ...
    • Forecasting performance of cruise passengers : the Spanish ports case 

      Grifoll Colls, Manel; Sánchez Espigares, Josep Anton; Feng, Hongxiang (2021-01-01)
      Article
      Accés obert
      This contribution examines the passenger forecasting performance of the SARIMA method applied to cruise activities in the main Spanish ports. In this port system, the cruise activity market is characterized by different ...
    • Goodness-of-fit graphical assessment for a broad family of unimodal distributions 

      Grima Cintas, Pedro; Sánchez Espigares, Josep Anton; Delicado Useros, Pedro Francisco (2022-01-01)
      Article
      Accés obert
      A Skewed Exponential Power Distribution is used to construct a bidimensional array of graphics in which kurtosis varies when moving horizontally and skewness when moving vertically. The Normal distribution lies in the ...
    • Graphical comparison of normality tests for unimodal distribution data 

      Sánchez Espigares, Josep Anton; Grima Cintas, Pedro; Marco Almagro, Lluís (2019-01-02)
      Article
      Accés obert
      A methodology is proposed to compare the power of normality tests with a wide variety of alternative unimodal distributions. It is based on the representation of a distribution mosaic in which kurtosis varies vertically ...
    • Herbivores, saprovores and natural enemies respond differently to within-field plant characteristics of wheat fields 

      Caballero López, Berta; Blanco Moreno, José M.; Pujade Villar, Juli; Ventura, Daniel; Sánchez Espigares, Josep Anton; Sans Serra, Francesc Xavier (2016-05-26)
      Article
      Accés obert
      Understanding ecosystem functioning in a farmland context by considering the variety of ecological strategies employed by arthropods is a core challenge in ecology and conservation science. We adopted a functional approach ...
    • Hybrid approaches for container traffic forecasting in the context of anomalous events: the case of the Yangtze River Delta region in the COVID-19 pandemic 

      Huang, Dong; Grifoll Colls, Manel; Sánchez Espigares, Josep Anton; Zheng, Pengjun; Feng, Hongxiang (2022-11)
      Article
      Accés restringit per política de l'editorial
      The COVID-19 pandemic had a significant impact on container transportation. Accurate forecasting of container throughput is critical for policymakers and port authorities, especially in the context of the anomalous events ...
    • Lecture Notes on Forecasting Time Series 

      Sánchez Espigares, Josep Anton; Acosta Argueta, Lesly María (Universitat Politècnica de Catalunya, 2024-03-05)
      Apunts
      Accés obert
    • Mixed nonlinear modelling in food engineering: determination of the salting time of boneless dry-cured Cerretan hams 

      Espuña Soler, Francesc Xavier; Acosta Argueta, Lesly María; Sánchez Espigares, Josep Anton; Tort-Martorell Llabrés, Xavier (TU Dortmund University, 2023)
      Comunicació de congrés
      Accés obert
      A great challenge in producing a good cured ham is to reduce the variability of the salt content between pieces of ham and to obtain homogeneity in terms of flavour and quality in general. This reduction in variability ...
    • Mosaic normality test 

      Sánchez Espigares, Josep Anton; Grima Cintas, Pedro; Marco Almagro, Lluís (2020-03-06)
      Article
      Accés obert
      A procedure is proposed here for jointly visualizing the compatibility of a sample with a family of Skewed Exponential Power Distributions, of which the distributions known as Normal, Exponential, Laplace and Uniform are ...