Replacing nonidentical vital components to extend system life
نویسندگان
چکیده
منابع مشابه
On Conditional Inactivity Time of Failed Components in an (n-k+1)-out-of-n System with Nonidentical Independent Components
In this paper, we study an (n-k+1)-out-of-n system by adopting their components to be statistically independent though nonidentically distributed. By assuming that at least m components at a fixed time have failed while the system is still working, we obtain the mixture representation of survival function for a quantity called the conditional inactivity time of failed components in the system. ...
متن کاملConducting Requirements Evolution by Replacing Components in the Current System
As new software components become available for an existing system, we can evolve not only the system itself but also its requirements based on the new components. In this paper, we propose a method to support requirements evolution by replacing a component with another component, and by changing the current requirements so as to adapt to the new component. To explore the possibilities of such ...
متن کاملConsecutive k-within-m-out-of-n:F System with Nonidentical Components
As a generalisation of consecutive k-out-of-n:F and k-out-of-n:F system models, a consecutive kwithin-m-out-of-n:F system consists of n linearly ordered components and fails if and only if there are m consecutive components which include among them at least k failed components. In this paper, we study the survival function of a consecutive k-within-m-out-of-n:F system consisting of independent ...
متن کاملRevising life expectancy index to explain its consistency to other vital indices in Iran
Introduction: The indicator of life expectancy at bird along with per capita income and literacy indicators in the annual human development reports are used for comparison and ranking of countries. This has increased the interest in life expectancy indicator in national researches and for health policy assessments. The independent nature of life expectancy calculation from other health indicato...
متن کاملReactive oxygen species extend insect life span using components of the insulin-signaling pathway.
Reactive oxygen species (ROS) are well-known accelerants of aging, but, paradoxically, we show that physiological levels of ROS extend life span in pupae of the moth Helicoverpa armigera, resulting in the dormant state of diapause. This developmental switch appears to operate through a variant of the conventional insulin-signaling pathway, as evidenced by the facts that Akt, p-Akt, and PRMT1 ar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Naval Research Logistics
سال: 2008
ISSN: 0894-069X,1520-6750
DOI: 10.1002/nav.20312