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The purpose of this paper is to evaluate remaining useful life (RUL) of machine tools, which is a key indicator for equipment maintenance and health management. The proposed method takes the factors of reliability, maintainability and economy into account and constructs the evaluation index system based on analytical hierarchy process (AHP) method. Euclid approach degree is then calculated through...
When it comes to the reliability allocation of Computerized Numerical Control (CNC) turrets, there are two problems. One problem is that the corresponding reliability index is only allocated into each subsystem; another problem is that neglecting the coordination between each subsystem will affect the results of reliability allocation. To solve these two problems a new research method for CNC turret...
A network system can be composed of a variety of heterogeneous network, using various transmission media with different topological structure and adopt the corresponding multiple channel access control methods, so the network transmission performance evaluation is very complicated, and the analysis method is based on the original wired communication network, unable to reflect the complex network environment,...
In recent years, content-based publish/subscribe (pub/sub) has become a popular paradigm to decouple content producers and consumers for Internet-scale content services. Many real applications show that the content workloads frequently exhibit very skewed distribution, and incur unbalanced workloads. To balance the workloads, the literature of content-based pub/sub adopted a migration scheme (Mis)...
Drought index plays an important role in the assessment of drought severity as one sensitive indicator of land drought status. A simple and accurate method of expressing ground drought from remote sensing data is in urgent. Firstly, a brand-new frame has been developed by coordinate system transformation, with (x', y') expressing (soil water content, vegetation coverage), which made the meaning more...
In recent years it have been recognized that the service sector has take a more and more important role in today's economy. Evaluating the level of development in service sector is crucial for the regional government to formulate the policies that support the development of its service sector. This paper has constructed an index system for evaluating the development of service sector. And then use...
Aiming at grid nets under the environment of mass, heterogeneous information task, distribution and dynamic characteristics, this paper discusses the principles to be followed firstly, then creates the operational missions information quality evaluation index system and the utility measure mode. The results can provide an authentication method for sharing and using the operational mission information...
This article proposed a nonparametric test method by using Gaussian mixture model application idea for reference to evaluating the construction of index architecture. First use Gaussian mixture model to cluster analysis the index architecture. Second use rank correlation coefficient of nonparametric test method to select index architecture. Then determined the evaluate index architecture and guarantee...
Credit risk management, which is the basic of the credit application, is the most perfect embodiment in the bank credit application and asset supervision. The ultimate purpose of credit risk management is to ensure that credit fund is of safety, profitability and fluidity. At present, it is extremely important of commercial banks to set up an early bank risk warning system. The author who makes great...
Nowadays with the growing scale of computer network as well as the number of nodes, the traditional method of mobile agent based distributed intrusion detection system may cause severe problem of network congestion and time delay, for the data processing of all the nodes are converged to the central node which will lead to a mass data processing on it. In this article we bring up a mobile agent and...
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