12,356 research outputs found
Parity space-based fault detection for Markovian jump systems
This article deals with problems of parity space-based fault detection for a class of discrete-time linear Markovian jump systems. A new algorithm is firstly introduced to reduce the computation of mode-dependent redundancy relation parameter matrices. Different from the case of linear time invariant systems, the parity space-based residual generator for a Markovian jump system cannot be designed off-line because it depends on the history of system modes in the last finite steps. In order to overcome this difficulty, a finite set of parity matrices is pre-designed applying a unified approach to linear time invariant systems. Then the on-line residual generation can be easily implemented. Moreover, the problem of residual evaluation is also considered which includes the determination of a residual evaluation function and a threshold. Finally, a numerical example is given to illustrate the effectiveness of the proposed method
Actual Media Reports on GM Foods and Chinese Consumers' Willingness to Pay for GM Soybean Oil
Information has been proven to have significant impacts on consumers' behavior and willingness to pay (WTP). In this study, information on GM soybean oil is given in the form of real-life cases involving GM food. These cases recorded from actual media reports. Using a hybrid of the double-bounded and payment care elicitation approaches, Chinese consumers' WTP for soybean oil is examined both before and after these cases are presented to them. Results indicate that media reports on positive cases do not increase consumers' WTP significantly, while reports on negative cases drastically lower their WTP.Chinese consumers, double-bounded, soybean oil, willingness to pay, Consumer/Household Economics, Demand and Price Analysis,
The Fidelity of Measurement-Based Quantum Computation under a Boson Environment
We investigate the fidelity of the measurement-based quantum computation
(MBQC) when it is coupled with boson environment, by measuring cluster state
fidelity and gate fidelity. Two different schemes of cluster state preparation
are studied. In the Controlled-Z (CZ) creation scheme, cluster states are
prepared by entangling all qubits in state with CZ gates on all
neighboring sites. The fidelity shows an oscillation pattern over time
evolution. The influence of environment temperature is evaluated, and
suggestions are given to enhance the performance of MBQC realized in this way.
In the Hamiltonian creation scheme, cluster states are made by cooling a system
with cluster Hamiltonians, of which ground states are cluster states. The
fidelity sudden drop phenomenon is discovered. When the coupling is below a
threshold, MBQC systems are highly robust against the noise. Our main
environment model is the one with a single collective bosonic mode.Comment: 13 pages, 16 figure
Fermions tunneling from higher-dimensional charged AdS black hole in dRGT massive gravity within modified dispersion relation
The tunneling behavior of fermions with half-integral spin from a higher
dimensional charged anti-de Sitter (AdS) black hole in de Rham, Gabadadze and
Tolley (dRGT) massive gravity is investigated via a modified Hamilton-Jacobi
equation. The results demonstrate that the modified thermodynamic quantities
not only are related to the properties of the higher dimensional charged AdS
black hole in dRGT massive gravity but also depend on the parameter ,
the coupling constant and the mass of emitted particles . In
addition, the modified Hawking temperature is higher than the original
temperature; hence, the effect of MDR can significantly enhance the evolution
of the black hole. Besides, our results can be verified using the modified
Stefan-Boltzmann law.Comment: 7 pages, corrected typo
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