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The equipment maintenance for marine ships is of upmost importance especially in a long-distance voyage. This problem becomes more challengeable as the numbers and sorts of equipments become much larger in very large ships. Traditional on-board equipment maintenance heavily relies on a technology called IETM (Interactive Electronic Technical Manual). However, traditional IETM technology has several...
Green software has become an important research objective. And virtualization technique is the main implement method now. In this paper, we introduce four concepts describing virtualization as virtualization process, virtualization process capability, virtualization efficiency and virtualization process maturity to measure the mature extent of implementing virtualization, and further present the related...
The foundation of network security have not been paid enough concentrations, and the comprehensive considerations for the solution models in network security have not been explored thoroughly. In this paper, we make the first attempt to establish several models for the security of network protocols. We divide the security of network protocols into two folders: the implementation security of network...
In the aluminium content on corrosion resistance of zinc - aluminum alloy coating effects research foundation, through our country typical natural atmosphere and seawater, freshwater environment exposure test and laboratory conditions of neutral salt spray corrosion test and electrochemical methods,study on thermal spraying Zn, Al and Zn-Al15 metallic coatings in different natural environment protection...
Assembly modeling, one of the most important technologies of virtual assembly, not only reflects the integrity of assembly information, but also serves as the foundation of assembly simulation and planning. In order to extract the complete assembly information from assembly model, this paper proposes a hierarchical constraint assembly model for assembly sequence planning. It is established on detailed...
This paper presents a PBIL algorithm based on adaptive theory-giving that the traditional reduction of rough set is not unique and the process lasts for a long time. The learn probability and mutation rate of traditional PBIL algorithm can change adaptively by introducing the Systemic Entropy, then a self-learning and adaptive variability PBIL algorithm (APBIL) is formed. When it is applied to attributes...
An outlier mining based algorithm is presented to detect dim target in sea and sky background infrared image sequences. Firstly, according to the characteristic that dim target intensity is not correlation with background, viewed the target pixels as outliers; and then used an outlier mining algorithm based on local reachability density (lrd) to detect the candidate target pixels; finally, target...
How to detect and locate the faulty states is the key to determine the effectiveness of fault diagnosis system. This paper defines three types of dependency relationship between one fault and another in the discrete event system (DES). And it defines a graphic representation method based on dependency relationship called the fault direct dependency relationship graph (FDDRG) and the fault dependency...
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