Since Java thread cannot be notified according to priority while multithreading accessing the critical resource,a component that could notify waiting thread based on priority was designed.

To aim at the situation that in multiprogramming environment,the use of mutex has such disadvantages as different standards,complex rules,prone to deadlock,a new method is proposed which extends the C++ standard grammar to incorporate in some critical resource define and access .

The algorithm can not only access the critical resource synchronously,based on sending messages and passing tokens in the computer network with no requirement for logical structure,but also commendably resolve the failure-recovery problems caused by the loss of request and token,etc.

Through the comparison of critical points, the main influence factors were found out, and the task to stabilize sinter TFe and basicity in next step was pointed out.

The critical point of d-dimensional bootstrap percolation like cellular automata is studied.

This paper deals with the critical point of three-dimensional bootstrap percolation-like cellular automata.

In this paper, a thermodynamic model to predict the incipient calorific values of MSW for this novel process is proposed.