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Ad hoc networks are expected to be used in a number of very different situations. But a common characteristic is that the nodes have to cooperate with each other. This problem is particularly crucial, if each node is its own authority. Reckoning the releva ...
In multi-hop wireless networks, every node is expected to forward packets for the benefit of other nodes. Yet, if each node is its own authority, then it may selfishly deny packet forwarding in order to save its own resources. Some researchers have propose ...
Due to regulatory and institutional developments, changes in consumer behaviour and the emergence of new technologies during the last two decades, incumbent postal operators in Europe had to face new challenges, threats but also opportunities. The incumben ...
Environmental Context. The chemical speciation of trace metals greatly influences their biological effects. Nonetheless, no clear consensus currently exists as to when metal complexes are bioavailable, especially for field conditions. Recently, the USA EPA ...
Reputation mechanisms offer an efficient way of building the necessary level of trust in electronic markets. In the absence of independent verification authorities that can reveal the true outcome of a ransaction, market designers have to insure that it is ...
The CHEASE code (Cubic Hermite Element Axisymmetric Static Equilibrium) solves the Grad-Shafranov equation for toroidal MHD equilibria using a Hermite bicubic finite element discretization with pressure, current profiles and plasma boundaries specified by ...
In multi-hop wireless networks, every node is expected to forward packets for the benefit of other nodes. Yet, if each node is its own authority, then it may selfishly deny packet forwarding in order to save its own resources. Some researchers have propose ...
A simple improved mixing cell model is shown to be more accurate than the standard mixing cell model when used to solve solute transport problems with a nonlinear adsorption isotherm included. The solution obtained from the improved model is found to agree ...
In order to determine the origin of the CO emissions from a cogeneration spark ignition engine fuelled with a lean natural gas-air mixture, the influence of several combustion chamber parameters have been measured in detail. In an attempt to interpret the ...
In the frame of the Annex I of the IEA Implementing Agreement on Process Integration (PI), an international survey of end-users needs has been coordinated by EA Technology in Capenhurst, UK. The objectives of the survey in end-use industries are : 1) asses ...