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The existing methods for fitting mixture regression models assume a normal distribution for error and then estimate the regression parameters by the maximum likelihood estimate (MLE). In this article, we demonstrate that the MLE, like the least squares estimate, is sensitive to outliers and heavy-tailed error distributions. We propose a robust estimation(More)
Stainless steel is widely used in strongly oxidizing hydrogen peroxide (H2O2) environments. It is crucial to study its wear behaviour and failure mode. The tribological properties and oxidation of 304 stainless steel were investigated using a MMW-1 tribo-tester with a three-electrode setup in H2O2 solutions with different concentrations. Corrosion current(More)
Attachment of marine organisms leads to a significant increase of the friction of the hull surface which will reduce the reliability and energy efficiency of ships. The adhesion of destructive organisms can be decreased effectively via reducing the surface energy of the hull. A new type of material was produced using a peptide to bond with 304 stainless(More)
The water-lubricated rubber stern bearing is one of the key components of ships. Investigating the influence of factors on its wear life has an important significance to guarantee the safety navigation of ships. This study aimed to explore how the lubrication state, load and rotational speed influence on the wear mass loss of the water-lubricated rubber(More)
Frictional vibration and noise caused by water-lubricated rubber stern tube bearings, which are generated under extreme conditions, severely threaten underwater vehicles' survivability and concealment performance. This study investigates the effect of flaky and spherical MoS2 nanoparticles on tribological properties and damping capacity of water-lubricated(More)
This study aims at studying the reliability evaluation for the marine propulsion shaft system under the severe sea conditions. The variations of the contact stress between the bearings and the marine propulsion shaft under the severe sea conditions are analyzed using the finite element simulation. The stress-strength interference theory is used to evaluate(More)
Antifouling and drag reduction of ships are two critical issues in the shipping industry, which significantly affect the efficiency, safety, reliability of ships. Drag reduction by the bionic jet surface is an effective approach for reducing the energy consumption of ships. However, complicated by the impact of marine biofouling, it is invalid to consider(More)
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