Gray Hat hackers/Insider can use Live Linux distribution to get into the resources of primary/secondary installed Operating system. By using such devices and distributions they can access the critical point of an Operating system which make them able to control User/Critical files that cannot be accessed within the operating system or can accessed either by Administrator or Operating system due...

In this paper, a model for fuzzy risk of low yield of a crop is developed to study the implications of a reservoir operating policy model. When an optimal operating policy is derived based on a known objective, the policy itself does not, in general, indicate a measure of the system performance unless a criterion to this effect is embedded in the objective function. While a systems analyst is i...

Operating systems must be flexible in their support for security policies, providing sufficient mechanisms for supporting the wide variety of real-world security policies. Such flexibility requires controlling the propagation of access rights, enforcing fine-grained access rights and supporting the revocation of previously granted access rights. Previous systems are lacking in at least one of t...

This paper presents the analysis of a continuous review perishable inventory system wherein the life time of each item follows an exponential distribution. The operating policy is (s,S) policy where the ordered items are received after a random time which follows exponential distribution. Primary arrival follows Poisson distribution and they may turnout to be posit...

Bon Secours Health System's new strategic plan and community benefit services policy integrates the planning, budgeting, evaluating, and reporting of community benefit services into management processes at the same level of authority as other operational activities. The strategic plan of Bon Secours Health System, headquartered in Marriottsville, MD, documents the system's mission, operating pr...

This paper studies a geometric-process maintenance-model for a deteriorating system under a random environment. Assume that the number of random shocks, up to time , produced by the random environment forms a counting process. Whenever a random shock arrives, the system operating time is reduced. The successive reductions in the system operating time are statistically independent and identicall...

Managing the partitioning of resources between uncooperating applications is a fundamental requirement of an operating environment. Traditional operating environments only manage low-level resources which presents an impedance mismatch for internet-facing applications with service levels defined in terms of application-level transactions. The Multi-tasking Virtual Machine (MVM) and associated R...

We analyze the impact of tax progression on optimal investment policy and its value by first demonstrating that optimal investment policy maximizes the value of the firm and the rate at which it is growing as a function of operating capital stock. Then we show that three possible optimal regimes arise depending on the nature of tax policy. If the exogenously given progression threshold lies bet...

 We consider a queueing system where the server is subject to failures and can be repaired within a random period of time. After an "imperfect" repair, the server (machine) will be in a state between "as good as new" and "as bad as old". The server state will determine either the failure rate or the service rate or both. A Quasi Birth Death process is developed for modeling such a system. We i...