نتایج جستجو برای: water distribution infrastructure systems

تعداد نتایج: 2263485  

Journal: :Science 2003
Peter H Gleick

Twentieth-century water policies relied on the construction of massive infrastructure in the form of dams, aqueducts, pipelines, and complex centralized treatment plants to meet human demands. These facilities brought tremendous benefits to billions of people, but they also had serious and often unanticipated social, economical, and ecological costs. Many unsolved water problems remain, and pas...

Journal: :CoRR 2016
Orazio Giustolisi Antonietta Simone Luca Ridolfi

A common way of classifying network connectivity is the association of the nodal degree distribution to specific probability distribution models. During the last decades, researchers classified many networks using the Poisson or Pareto distributions. Urban infrastructures – like transportation (railways, roads, etc.) and distribution (gas, water, energy, etc.) systems – are peculiar networks st...

2013
Ariel Dinar Steven Helfand

Pakistan is home to one of the largest and most complex irrigation infrastructure systems in the world, consisting of 25 million hectares of irrigated agriculture, 56,000 kilometers of main canals, and tubewells in excess of 600,000. Nearly 100 million people depend on 107,000 water courses that are fed by 44 canal systems. Ineffective water management policies in the past have affected water a...

Journal: :تحقیقات آب و خاک ایران 0
سمانه سیف اللهی آغمیونی کارشناس ارشد، دانشگاه تهران امید بزرگ حداد استادیار، دانشگاه تهران محمدحسین امید استاد، دانشگاه تهران

uncertainty is undoubtedly an inevitable part of programming process. a lot of effective factors in the water resources’ performance are not deterministic while their values are surely needed for the design and implantation of water systems. since an optimal design of water distribution systems is in demand of a just evaluation of the costs, efficient operation of such systems calls for a prope...

2011
Paul J. Maliszewski Charles Perrings

One measure of the resilience of any dynamical system is the speed of return to equilibrium following perturbation. In electrical power distribution systems this may be approximated by the duration of unscheduled outages due to failure of the distribution system (i.e., excluding outages due to failure of the generation or transmission systems). We hypothesize that the resilience of power distri...

2014
Horst Kremers

There is considerable effort to cover the broad variety of types of risk including natural disaster risk, technical disaster risk, biological disaster risk, transport and energy, research and innovation, critical infrastructure protection, cross-border health threats, implications for the health service systems, environmental impact assessment, green infrastructure, integrated coastal managemen...

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