In spite of the existence of several Grid middleware projects, developing and executing programs on the computational Grid remains a user intensive process. The Grid Application Development Software (GrADS) project is working to make the Grid easy to use despite the dynamically changing status of Grid resources. Several software packages are being ported to the GrADS framework in order to guide...

In this document we define a contract in the context of the GrADS project and describe the current software infrastructure for creating and monitoring contracts. The mechanisms presented are quite flexible and support a wide range of contract specification and verification implementations. This flexibility allows for experimentation to identify the types of contracts that are most effective for...

While the ACO can find the optimal path of network, there are too many iterative times and too slow the convergence speed is also very slow. This paper proposes the Q-ACO QoSR based on convergence expectation with the real-time and the high efficiency of network. This algorithm defines index expectation function of link,and proposes convergence expectation and convergence grads. This algorithm ...

The relationship of contaminant gas concentration distribution influence on cross diffusion character and level among temperature, humidity was obtained according to the non-equilibrium thermodynamic theory. under different were discussed, combining real temperature in building room. results show that grads vapor mass are less than zero when additional coefficient both positive or negative, oth...