Dynamically Efficient Urban Water Policy

Dynamically Extensible Policy Server and Agent

This paper proposes a method, called the policyextension-by-policy method, for quickly and dynamically adding policy classes with new functionality to policy servers and agents. In this method, users can add a new policy class to the policy server by using policy-definition (PD) policies, and they can define a method to translate a policy of the new class and to send to network nodes of differe...

Photonic water dynamically responsive to external stimuli

Fluids that contain ordered nanostructures with periodic distances in the visible-wavelength range, anomalously exhibit structural colours that can be rapidly modulated by external stimuli. Indeed, some fish can dynamically change colour by modulating the periodic distance of crystalline guanine sheets cofacially oriented in their fluid cytoplasm. Here we report that a dilute aqueous colloidal ...

Efficient Matching of Dynamically Changing Graphs

New Directions for Urban Policy

Contrary to the conventional diagnosis of urban problems, this article argues that these problems do not arise from the long-term trends in the decentralization of employment and population in metropolitan areas. Instead, the most important fiscal problems confronted by central-city governments and the most significant social and economic problems of central-city residents arise from increased ...

Urban water sustainability

Introduction Conclusions References Tables Figures