This study presents the adsorption performance indicator for the evaluation of thermal power plant CO2 capture on mesoporous graphene oxide/TiO2 nanocomposite. To begin, this adsorbent was synthesized and characterized using N2 adsorption-desorption measurements (BET and BJH methods), X-Ray Diffraction (XRD), Field Emission Scanning Electron Microsc...

The NO removal over oxide sorbents (K2O/Al2O3 , CaO/Al2O3 and BaO/Al2O3) at a loading of up to 25 wt.% was investigated using a synthetic diesel exhaust gas containing  1,000 ppm NO, 1000 ppm iso-butane (i-C4H10), 8% O2 and N2 balance. The reactor was operated  at 250 <su...

In this paper, some recursive equations of reliability for linear consecutivek -out-ofn : F systems with spares d are introduced. The system of consecutive failures with sparse d is a generalized extension of consecutive-k systems, which was proposed by Zhao et al. (2007) in which the reliability formulas of these systems were presented by using finite Markov Chain imbedding approach. To facili...

ARTICLE INFO ABSTRACT Keywords: Dependability Consecutive-k-out-of-n: F repairable system Rare-event simulation RESTART The reliability of consecutive-fc-out-of-n: F repairable systems and (fc-l)-step Markov dependence is studied. The model analyzed in this paper is more general than those of previous studies given that repair time and component lifetimes are random variables that follow a gene...

In this paper, analysis of k-out-of-n Multi-State Systems (MSSs) is considered. This type of systems consists of n components, and it can be in state j if and only if at least k components are in state j or greater. Investigation of such systems has been considered in several works. However, most of them have dealt only with an efficient computation of several global characteristics, such as sy...

The k-out-of-N structure is a popular type of redundancy in fault-tolerant systems with wide applications in computer and communication systems, and power transmission and distribution systems, among others, during the past several decades. In this paper, our interest is in such a reliability system with identical, repairable components having exponential life times, in which at least k out of ...

New bounds are found for the reliability of consecutive-k-out-of-n:F systems with equal component failure probabilities. The expressions involved are simple, thus allowing a direct use in the derivation of theoretical properties. These bounds can also be employed in numerical computations when the value of n or k is so large that the exact calculation of the reliability is not achievable. Compa...

The objective of this paper is to compare the performance of three on-line test and maintenance strategies (corrective maintenance, preventive maintenance and predictive maintenance) for standby k-out-of-n safety systems. Each channel of the k-out-of-n system is modelled by an age-dependent unavailability model to reflect the effect of maintenance on the aging process. The system unavailability...

In this note we deal with the allocation of independent and identical active redundancies to a k-out-of-n system with the usual stochastic order among its independent components. The optimal policy is proved both to assign more redundancies to the weaker component and to majorize all other policies. This improves the corresponding one in Hu and Wang (2009) and serves as a nice supplement to tha...

-out-ofsystems with cold standby units are typically studied for unit lifetime distributions that allow analytical tractability. Often, however, these distributions differ signi cantly from reality. In this paper, we present an analytical approach to compute the mean failure time for -out-ofsystems with a single cold standby unit for the wide class of lifetime distributions that can be captured...