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Rolling bearing is a key component of rotary machinery, and its working state tends to affect the reliability and lifetime of the equipment. The traditional way to ensure productivity is to replace rolling bearings regularly which is a waste of resources and could increase maintenance costs, because of the large discreteness of rolling bearing's lifetime. So changing the fail-and-fix practices into...
Rotating machinery play an important role in modern industry. Ensuring security and reliability of manufacture equipments has been receiving more and more recognition. This paper proposes an innovative techniques for rotating machinery fault diagnosis. The fault diagnosis system is comprised of clearly defined separate submodels including antigen submodel, memory submodel, DC submodel, analyse submodel...
Digital watermarking is a technique used to embed an extra piece of information into multimedia signals. Aiming at content-based audio retrieval applications, a robust audio watermarking scheme resist to low bits rates compression is proposed. The performance of proposed algorithm is analysis by common signal processing such as Mp3 compression, Real compression, filtering, amplitude compression, equalization,...
Many risk factors affect software development and risk management has become one of the major activities in software development. Discovering causal directions among risk factors and project performance are important support for risk management. The Additive Noise Model (ANM) is an effective algorithm for discovering the direction on one-to-one causalities, but ineffective on many-to-one causalities...
With consideration of two-dimensional (2D) nature of iterative learning control (ILC), the equivalence between the compound ILC and a special 2D system is investigated. On the basis of robust analysis and design methods are developed for a special 2D system, a new segmented compound ILC scheme based on the 2D state input and output feedback has been delivered which gives the solutions to the descriptions,...
Rough set theory as a new mathematical tool is used to deal with the imprecise, incomplete and uncertain knowledge for pattern recognition. In current information explosion era, the powerful functions of agricultural decision support system(ADSS) on assistant decision-making and rough set on information processing is becoming increasingly obviously, and have called people's attention. According to...
As a complex engineering problem, the hybrid layout design with behavioural constraints is difficult to resolve by using conventional approaches. The challenges stem from three aspects: computational complexity, engineering complexity, and engineering practicability. This paper addresses the major issue in establishing three-dimensional layout models to support optimization calculation and constructing...
A cryptosystem based on multiple chaotic maps is proposed. It is composed of a function f(times), a 2D chaotic map and two cascaded chaotic subsystems. The iteration times of the cascaded subsystem constructed by simple chaotic maps are changed with the outputs of the 2D chaotic map. Plaintext and the outputs of the cascaded subsystems are handled by the function f(times) to generate ciphertext. Simulation...
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