This paper presents some aspects of the time propagation of underground water leakage in controlled laboratory conditions using a drilled polyvinyl chloride (PVC) pipe and interpreting ground penetrating radar (GPR) images. ...
AHP (analytic hierarchy process) is used to construct coherent aggregate results from preference data provided by decision makers. Pairwise comparison, used by AHP, shares a common weakness with other input formats used ...
Ocaña Levario, Silvia Janeth(Universitat Politècnica de València, 2021-03-04)
[ES] Los esfuerzos que hacen los países, en conjunto con organizaciones mundiales, tales como IWA (por International Water Association), ONU-Agua y OMS (Organización Mundial de la Salud), para mitigar el impacto ambiental ...
Ayala Cabrera, David(Universitat Politècnica de València, 2015-12-29)
[EN] Over time, due to multiple operational and maintenance activities, the networks of water supply systems (WSSs) undergo interventions, modifications or even are closed. In many cases, these activities are not properly ...
Decision making (DM) processes are becoming increasingly complex. The reasons are manifold. DM usually involves many aspects; some are purely technical, while others are subjective and derived from social, political, and ...
[EN] Nowadays, there is growing interest in controlling and reducing the amount of water lost through leakage in water supply systems (WSSs). Leakage is, in fact, one of the biggest problems faced by the managers of these ...
[EN] This paper addresses the problem of leakage in water distribution systems through the use of ground penetrating radar (GPR) as a nondestructive method. Laboratory tests are performed to extract features of water leakage ...
Brentan, Bruno M.; Meirelles, G.; Luvizotto, E.; Izquierdo Sebastián, Joaquín(Elsevier, 2018)
[EN] With the advance of new technologies and emergence of the concept of the smart city, there has been a
dramatic increase in available information. Water distribution systems (WDSs) in which databases can be
updated ...
This work focuses on the generation of tools to aid inspection and identify buried plastic pipes in water supply systems (WSS). In our study we use ground penetrating system (GPR) images as a non-destructive method of ...
Herchlová, Simona(Universitat Politècnica de València, 2018-01-29)
[ES] El presente trabajo estudia el agua como elemento compositivo del paisaje y los distintos sistemas de abastecimiento hídrico. Con el fin de aplicar los conocimientos adquiridos al caso práctico de la Huerta Norte de ...
Ramos Martínez, Eva; Herrera Fernández, Antonio Manuel; Izquierdo Sebastián, Joaquín; Pérez García, Rafael(Athens Institute for Education and Research, 2015)
[EN] The presence of regulated quantities of residual disinfectant is a usual feature
in water supply systems (WSSs); nevertheless, biofilm formation persists in all
of them, representing a paradigm in WSSs management ...
Brentan, Bruno M.; Luvizotto, Edevar Jr.; Montalvo, Idel; Izquierdo Sebastián, Joaquín; Pérez García, Rafael(Elsevier, 2017)
[EN] Management of existing systems can be interpreted as sets of decisions to make regarding pumps and valves to create hydraulic conditions able to satisfy the demand without operational problems such as pressures lower ...
[EN] Around 30-40 years ago, principles and methods were developed to conceptualise, assess and manage risk. These principles and methods are still, to a large extent, the foundation of the field. Over the past decade, ...
[EN] We propose a methodological tool for examining the layout and revealing the concealed characteristics of urban water supply systems (WSS). For this purpose, we use underground images obtained with ground penetrating ...
[EN] This document shows some aspects regarding water leakage time propagation through the underground, in controlled laboratory conditions, using a drilled PVC pipe, through the interpretation of GPR images. The extraction ...
López Jiménez, Petra Amparo; Pérez Sánchez, Modesto(2023-06-05)
Los sistemas de distribución de agua (tanto de redes de abastecimiento como de riego) pueden ser de varias formas, pero atendiendo a la manera en que se transporta el agua pueden ser a lámina libre o presurizados. En ...