In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto incr...In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto increase the capacity and capability of enterprises,having no investment for new infrastructure,no software license requirement and no need of any training.Security concern is the main limitation factor in the growth of this new born technology.The security responsibilities of both,the provider and the consumer greatly differ between cloud service models.In this paper we discuss a variety of security risks,authentication issues,trust,and legal regularity in cloud environment with consumer perspective.Early research focused only on technical and business consequences of cloud computing and ignored consumer perspective.Therefore,this paper discusses the consumer security and privacy preferences.展开更多
We investigate the global exponential stability of Cohen-Grossberg neural networks （CGNNs） with variable moments of impulses using B-equivalence method. Under cer- tain conditions, we show that each solution of the ...We investigate the global exponential stability of Cohen-Grossberg neural networks （CGNNs） with variable moments of impulses using B-equivalence method. Under cer- tain conditions, we show that each solution of the considered system intersects each surface of discontinuity exactly once, and that the variable-time impulsive systems can be reduced to the fixed-time impulsive ones. The obtained results imply that impul- sive CGNN will remain stability property of continuous subsystem even if the impulses are of somewhat destabilizing, and that stabilizing impulses can stabilize the unsta- ble continuous subsystem at its equilibrium points. Moreover, two stability criteria for the considered CGNN by use of proposed comparison system are obtained. Finally, the theoretical results are illustrated by two examples.展开更多
文摘In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto increase the capacity and capability of enterprises,having no investment for new infrastructure,no software license requirement and no need of any training.Security concern is the main limitation factor in the growth of this new born technology.The security responsibilities of both,the provider and the consumer greatly differ between cloud service models.In this paper we discuss a variety of security risks,authentication issues,trust,and legal regularity in cloud environment with consumer perspective.Early research focused only on technical and business consequences of cloud computing and ignored consumer perspective.Therefore,this paper discusses the consumer security and privacy preferences.
文摘We investigate the global exponential stability of Cohen-Grossberg neural networks （CGNNs） with variable moments of impulses using B-equivalence method. Under cer- tain conditions, we show that each solution of the considered system intersects each surface of discontinuity exactly once, and that the variable-time impulsive systems can be reduced to the fixed-time impulsive ones. The obtained results imply that impul- sive CGNN will remain stability property of continuous subsystem even if the impulses are of somewhat destabilizing, and that stabilizing impulses can stabilize the unsta- ble continuous subsystem at its equilibrium points. Moreover, two stability criteria for the considered CGNN by use of proposed comparison system are obtained. Finally, the theoretical results are illustrated by two examples.
