Approximations for steady-state measures in highly dependable systems with generally distributed component failure and repair times

2002 ◽  
Author(s):  
P. Shahabuddin ◽  
P.W. Glynn
Keyword(s):  
Steady State ◽  
Component Failure ◽  
Dependable Systems

scholarly journals Maximization of availability of 1-out-of-2:G repairable dependent system

1989 ◽  
Vol 21 (03) ◽  
pp. 717-720
Author(s):  
B. H. Joshi ◽  
A. D. Dharmadhikari
Keyword(s):  
Stochastic Process ◽  
Steady State ◽  
Lower Bound ◽  
Upper Bounds ◽  
The Other ◽  
Expected Number ◽  
Component Failure ◽  
Component System ◽  
Component Failure Rates ◽  
Repair Facility

The IFR property of the stochastic process governing a one-component system supported by an inactive standby and a repair facility when the lifetime of one component and the repair time of the other component are dependent, is established. We solve the problem of selecting repair rates to maximize the steady-state availability for given component failure rates when a lower bound for the MTBF and upper bounds for the steady-state expected number of repairs of the components per unit time and expected number of failures of the system per unit time are given.

scholarly journals Markov Process in Varying Value in Production by Machinery with Two Components

2019 ◽  
Vol 8 (10) ◽  
pp. 3411-3414
Keyword(s):  
Steady State ◽  
Markov Process ◽  
The Other ◽  
Component Failure ◽  
Expected Cost ◽  
Paper Production ◽  
Cost Of Production ◽  
Steady State Probabilities

In this paper production and availability of machinery for production are considered. Here a machinery of production with two components is considered and that production is full when the machinery is working with both the components functioning well. But there is a chance that the whole machinery may dysfunction because of failure of both components in which case the production comes to a standstill and it is worst crisis. The other possibility is that one of the components may fail but still the machine continues functioning but with less efficiency. The production may continue and if the other component also fails the production completely stops and the situation is critical. When the machine is in one component failure, the failed part may be a repaired and machine can be made to work with full efficiency. But when both components fail, should be renewed as a package and then the production should start. Under such conditions found the steady state probabilities and the rate of crisis and the expected cost of production.

scholarly journals Maximization of availability of 1-out-of-2:G repairable dependent system

1989 ◽  
Vol 21 (3) ◽  
pp. 717-720 ◽  
Author(s):  
B. H. Joshi ◽  
A. D. Dharmadhikari
Keyword(s):  
Stochastic Process ◽  
Steady State ◽  
Lower Bound ◽  
Upper Bounds ◽  
The Other ◽  
Expected Number ◽  
Component Failure ◽  
Component System ◽  
Component Failure Rates ◽  
Repair Facility

The IFR property of the stochastic process governing a one-component system supported by an inactive standby and a repair facility when the lifetime of one component and the repair time of the other component are dependent, is established. We solve the problem of selecting repair rates to maximize the steady-state availability for given component failure rates when a lower bound for the MTBF and upper bounds for the steady-state expected number of repairs of the components per unit time and expected number of failures of the system per unit time are given.

Studies on Water in the Hydration Chamber of a Modified Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 544-545
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Steady State ◽  
Room Temperature ◽  
Small Mass ◽  
Equilibrium Pressure ◽  
Biological Objects ◽  
Mechanical Pump ◽  
Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

Continuous hydrogenolysis of acetal-stabilized lignin in flow

2021 ◽  
Author(s):  
Wu Lan ◽  
Yuan Peng Du ◽  
Songlan Sun ◽  
Jean Behaghel de Bueren ◽  
Florent Héroguel ◽  
...  
Keyword(s):  
Steady State ◽  
Challenges And Opportunities

We performed a steady state high-yielding depolymerization of soluble acetal-stabilized lignin in flow, which offered a window into challenges and opportunities that will be faced when continuously processing this feedstock.

Network reconstruction based on steady-state data

2008 ◽  
Vol 45 ◽  
pp. 161-176 ◽  
Author(s):  
Eduardo D. Sontag
Keyword(s):  
Steady State ◽  
Reverse Engineering ◽  
Theoretical Method ◽  
Network Reconstruction ◽  
Quasi Steady State ◽  
State Data

This paper discusses a theoretical method for the “reverse engineering” of networks based solely on steady-state (and quasi-steady-state) data.

Sign in / Sign up

Export Citation Format

Share Document