Based on discussing the model of role-based access control and through analyzing the safe requirement of SMS,a RBAC-based authority control method in network environment of SMS has been put forward,and the safe authority control is realized with good effect.
The community network safety is count for much to the application of whole community net,this text ana-lyzed the community network system inside network a safe problem for exsitting with the safe strategy in network,giving a measure for shoulding adopt in safe system in network in system in community finally with the method.
A group of scientists conducted a comprehensive investigation on ecological safety and water and soil erosion in the Northwest Loess Plateau, Northwest China.
Therefore, the extension scale of converting cropland to forest could be enlarged properly in the reservoir area, while it should be limited in the non-reservoir area due to the issues of higher population density and food safety.
The infrared sensors around the robot improved its safety in avoiding barriers.
Frequent natural disasters and man-made catastrophes have threatened the safety of citizens and have attracted much more attention.
Disaster prevention, disaster reduction and disaster rescue are the important parts of national public safety.
In this paper, we use a direct method to solve the optimal portfolio and consumption choice problem in the security market for a specific case, in which the utility function is of a given homogenous form, i.e.
This paper analyzes the aritrage-free security markets and the general equilibrium existence problem for a stochastic economy with incomplete financial markets.
Linear provable security for a class of unbalanced feistel network
Application of this structure to block cipher designs brings out the provable security against linear attack with the upper bounds of probabilities.
Trust management was discussed according to the security requirements in distributed environment.
In this paper we show that the competitive multiplier of Safe-Risky-fixed Algorithm in  is really 3 and presents a modified algorithm (Safe-Risky-unfixed Algorithm) that achieves a competitive multiplier of 2.
The results show that there are two endangered species, six vulnerable species, 12 nearly threatened species and 344 safe species.
Also, they kill the hosts in a concealed but safe position after the hosts cocoon or build their pupal cells.
Progress has been made in the past decade on phytoremediation, a safe and inexpensive approach to remove contaminants from soil and water using plants.
Splenic auto transplantation and esophageal transection anastomosis are a safe, effective, and reasonable treatment strategy for portal hypertension with varicial bleeding.