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Many manufacturing processes can induce residual stresses in produced components. These residual stresses influence the mean stress during cyclic loading. The initial residual stresses induced during manufacturing change during fatigue damage. This paper presents a research on the change of residual stress distribution during fatigue crack propagation; the research predicts crack propagation by considering...
As the phenomenon of fracture damage is a common failure mode of equipment, the reliability evaluation and residual life prediction have become a hot-spot. And the precise estimation of crack propagation has become necessary. The common estimation study of crack propagation for structure under random load takes less influence factor into consideration, and cannot be quantitatively corrected by influence...
In this paper we consider a novel software reliability modeling framework based on non-homogeneous inverse Gaussian processes (NHIGPs). Although these models are derived in a different way from the well-known non-homogeneous Poisson processes (NHPPs), they can be regarded as interesting stochastic point processes with both arbitrary time non-stationary properties and the inverse Gaussian probability...
The problems of Hinfin stability and stabilization for networked control systems (NCSs) with state and control signal quantizations are considered, and a new sector bound approach is proposed. Unlike the previous works, the transform of system models to uncertain systems is not needed, which results in that the proposed controller design method is simpler. Even for the NCSs with only state quantizations,...
Six common disinfectants were studied for their effects in water on Tubifex species, Monopylephorus limosus, frequently found in tap water in many places of China recently. These disinfectants include sodium hypochlorite, liquid chlorine, chloramines, chlorine dioxide, hydrogen peroxide, and potassium permanganate composite. It was found that 100% mortality rate could be achieved within two hours...
This paper establishes the equivalence among several stability criteria, and presents a simplified stability criterion for singular time-delay systems. Furthermore, by using a delay decomposition method, a new stability criterion which is much less conservative than the existing ones is obtained. A numerical example is given to illustrate the effectiveness and less conservatism of the new proposed...
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