On the residual lifetime of coherent systems with heterogeneous components
Sign Up to like & getrecommendations! Published in 2017 at "Metrika"
DOI: 10.1007/s00184-016-0591-y
Abstract: The residual lifetime is of significant interest in reliability and survival analysis. In this article, we obtain a mixture representation for the reliability function of the residual lifetime of a coherent system with heterogeneous components… read more here.
Keywords: heterogeneous components; residual lifetime; lifetime coherent; systems heterogeneous ... See more keywords
Counting perverse coherent systems on Calabi–Yau 4-folds
Sign Up to like & getrecommendations! Published in 2022 at "Mathematische Annalen"
DOI: 10.1007/s00208-022-02364-1
Abstract: Nagao-Nakajima introduced counting invariants of stable perverse coherent systems on small resolutions of Calabi-Yau 3-folds and determined them on the resolved conifold. Their invariants recover DT/PT invariants and Szendroi's non-commutative invariants in some chambers of… read more here.
Keywords: counting invariants; coherent systems; calabi yau; yau folds ... See more keywords
Joint Reliability Function of Coherent Systems with Shared Heterogeneous Components
Sign Up to like & getrecommendations! Published in 2021 at "Methodology and Computing in Applied Probability"
DOI: 10.1007/s11009-021-09867-5
Abstract: In this paper, we consider two coherent systems having shared components. We assume that in the two systems there are three different types of components; components of type one that just belong to the first… read more here.
Keywords: joint reliability; coherent systems; systems shared; reliability function ... See more keywords
New metric for IQ imbalance compensation in optical QPSK coherent systems
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DOI: 10.1007/s11107-018-0783-7
Abstract: We report on a simple alternative method for the compensation of quadrature imbalance in optical quadrature phase-shift-keying (QPSK) coherent systems. By introducing a new metric, the phase imbalance can be determined and compensated. The proposed… read more here.
Keywords: imbalance; phase; compensation; phase imbalance ... See more keywords
Stochastic comparisons of coherent systems under different random environments
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DOI: 10.1017/jpr.2018.30
Abstract: Abstract For many practical situations in reliability engineering, components in the system are usually dependent since they generally work in a collaborative environment. In this paper we build sufficient conditions for comparing two coherent systems… read more here.
Keywords: stochastic comparisons; different random; random environments; systems different ... See more keywords
Some new results on stochastic comparisons of coherent systems using signatures
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Probability"
DOI: 10.1017/jpr.2019.89
Abstract: Abstract We consider coherent systems with independent and identically distributed components. While it is clear that the system’s life will be stochastically larger when the components are replaced with stochastically better components, we show that,… read more here.
Keywords: stochastic comparisons; systems using; new results; coherent systems ... See more keywords
ACTIVE REDUNDANCY ALLOCATION FOR COHERENT SYSTEMS WITH INDEPENDENT AND HETEROGENEOUS COMPONENTS
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DOI: 10.1017/s0269964818000359
Abstract: This paper studies the allocation of active redundancies to coherent systems on the context that the base and redundancy components have mutual independent lifetimes. For systems with two symmetric components and systems with one component's… read more here.
Keywords: active redundancy; coherent systems; redundancy; redundancy allocation ... See more keywords
A CUMULATIVE RESIDUAL INACCURACY MEASURE FOR COHERENT SYSTEMS AT COMPONENT LEVEL AND UNDER NONHOMOGENEOUS POISSON PROCESSES
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DOI: 10.1017/s0269964820000637
Abstract: Inaccuracy and information measures based on cumulative residual entropy are quite useful and have attracted considerable attention in many fields including reliability theory. Using a point process martingale approach and a compensator version of Kumar… read more here.
Keywords: coherent systems; cumulative residual; measure; inaccuracy measure ... See more keywords
Performance and Complexity Analysis of Bi-Directional Recurrent Neural Network Models Versus Volterra Nonlinear Equalizers in Digital Coherent Systems
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2021.3092415
Abstract: We investigate the complexity and performance of recurrent neural network (RNN) models as post-processing units for the compensation of fibre nonlinearities in digital coherent systems carrying polarization multiplexed 16-QAM and 32-QAM signals. We evaluate three… read more here.
Keywords: neural network; performance; digital coherent; coherent systems ... See more keywords
Graphs models and algorithms for reliability assessment of coherent and non-coherent systems
Sign Up to like & getrecommendations! Published in 2018 at "Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability"
DOI: 10.1177/1748006x17744381
Abstract: In this article, we propose new models and algorithms for the reliability assessment of systems relying on concepts of graphs theory. These developments exploit the order relation on the set of system components’ states which… read more here.
Keywords: non coherent; algorithms reliability; coherent; models algorithms ... See more keywords
Reliability sensitivity analysis of coherent systems based on survival signature
Sign Up to like & getrecommendations! Published in 2018 at "Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability"
DOI: 10.1177/1748006x18754974
Abstract: The reliability sensitivity can be used to rank distribution parameters of system components concerning their impacts on the system’s reliability. Such information is essential to purposes such as component prioritization, reliability improvement, and risk reduction… read more here.
Keywords: system; survival signature; reliability sensitivity; reliability ... See more keywords