نتایج جستجو برای: epanet

تعداد نتایج: 226  

Journal: :Journal of Infrastructure Preservation and Resilience 2021

Abstract The water supply network (WSN) is subjected to leaks that compromise its service the communities, which, however, challenging identify with conventional approaches before consequences surface. This study developed Machine Learning (ML) models detect in WDN. Water pressure data under leaking versus non-leaking conditions were generated holistic WSN simulation code EPANET considering fac...

Journal: :Water 2023

Gravity flow water distribution systems (WDSs) are used to permit from an input point of highest elevation (source) the terminal points a system (consumers). In such WDSs, typically, there is no need for external power maintain due typical high gradients that exist. However, those cause velocity and pressure some network areas could potentially lead pipes bursting. Currently, only means regulat...

Journal: :Water 2023

Urban water distribution networks are crucial infrastructures for providing essential services to society, but their exorbitant costs and limited resources make optimization a critical research area. Optimal management design of these can help reduce enhance efficiency while meeting technical, economic, quality standards. In particular, the network pressure is reducing leakage in systems. Thus,...

Journal: :Water 2021

2,4,6-trichloroanisole (2,4,6-TCA) formation is often reported as a cause of taste and odor (T&O) problems in water distribution systems (WDSs). The biosynthesis via microbial O-methylation 2,4,6-trichlorophenol (2,4,6-TCP) the dominant pathway pipes. This paper attempted to utilize data on process formulate deterministic kinetic models for explaining 2,4,6-TCA dynamics WDSs. pipe material’...

Journal: :Annals of environmental science and toxicology 2021

Environmental and health organizations believe that water entering the distribution network should always have a certain amount of free chlorine remaining (at least 0.6 mg/L according to standard 1053).

Journal: :Annals of systems biology 2021

According to international and domestic standards, the concentration of free chlorine remaining in each node must be between certain values. In this way, health water is guaranteed.

2008
Ann Aschengrau Janice Weinberg Sarah Rogers Lisa Gallagher Michael Winter Veronica Vieira Thomas Webster David Ozonoff

BACKGROUND Prior studies of prenatal exposure to tetrachloroethylene (PCE) have shown mixed results regarding its effect on birth weight and gestational age. OBJECTIVES In this retrospective cohort study we examined whether PCE contamination of public drinking-water supplies in Massachusetts influenced the birth weight and gestational duration of children whose mothers were exposed before the...

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