A numerical solution for competitive diffusion into two static charged sinks is presented and compared against an approximate analytical solution. It is shown that for an attractive Coulomb potential the correction to the total diffusive flux of ionic reactants due to diffusion interaction between sinks may be ignored for large enough values of the Onsager length and thus the reaction rate can ...

This issue addresses the present-day budget for anthropogenic CO 2 , and particularly the distribution and controlling factors of net terrestrial sinks for atmospheric CO 2 . The latter are of increasing political and economic importance under international CO2 mitigation agreements. Inverse modelling of meridional and zonal atmospheric, data(e.g. CO 2 , O 2, C), is one way to constrain terrest...

High fecal indicator bacterial (FIB) concentrations signal urban coastal water quality impairments that can threaten public health. However, FIB (total and fecal coliform plus Enterococcus sp.) concentrations are not specific to human waste, and thus, microbial source tracking (MST) is employed to assess public health risks and remediation alternatives. Currently, water quality diagnosis requir...

A Wireless Sensor Network (WSN) is a network composed of a large number of nodes that sense, collect, transmit, and deliver data to where it is needed. It involves set of isolated urban areas covered by sensor nodes (SNs) monitoring environmental parameters. Mobile sinks are mounted upon urban vehicles with fixed trajectories (e.g., buses) providing the ideal infrastructure to effectively retri...

In this paper, we propose a rank table based routing method to solve congestion and traffic balancing problem in multi-sink zigbee networks. Each node has a rank table to cache path costs and next hop addresses between itself and all the sinks. All the sinks broadcast heartbeat packets containing their load level information as path costs periodically. Each router adds its own load level to the...