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A method is proposed for testing stationarity in an operational sense, i.e., by both including explicitly an observation scale in the definition and elaborating a stationarized reference so as to reject the null hypothesis of stationarity with a controlled level of statistical significance. While the approach is classically based on comparing local vs. global features in the time-frequency plane,...
Educational resource center is a digital content management and service system with all kinds of educational information resources collected. By analyzing the current development of educational resource center, this paper proposes that ecological development is the strategic goal of educational resource center, and presents a use efficiency model of educational resource center. The use efficiency...
Distributed power generation technology is an important part of smart grid. Because of its clean and efficient characteristics, it has been recognized, and obtains a strong development. Henan is a population intensive province, and consumes more energy relatively. So developing a clean and efficient energy is necessary, in order to satisfy the demands. The problem can be solved with the use of distributed...
Method of artillery effectiveness valuation was introduced. According to the theory of grey systems, the patterns of alternative schemes are formed with the fourteen performance indices, which reflect the artillery effectiveness best, and the standard mode of these index series is derived according to the grey target theory. The weighting of every indices was determined by Shannon information entropy,...
A new fragile watermarking algorithm for software configuration management is proposed in this paper. Firstly, the program (cover work) is divided into N groups, and hash function is used respectively to obtain the whole program information. Secondly, the watermark is obtained by combining with program information, author information and time information. The software version index (similar to software...
This study proposed a method using the value of amplitude of FFT frequency to evaluate the vascular elasticity (VE). Although personally different features of subject and accidentalia in the measurements were existing, the result of the experiment reflected the relationship between VE and the pulse waveform comparatively well, and the relationship between the VE and age indirectly. The value of amplitude...
This paper proposed a novel method evaluating vascular resistance (VR). Its aim was for convenience and accuracy of non-invasive detection of VR. New index was defined through Fourier analysis for pulse waveform being representative of differently physiological and pathological status. The trial result showed a good correlation between this index and K value and this paper provided a new and doable...
Trellis dirty paper watermarking is an implement of watermarking with side information, which has very good performances. But the structure issue remains unclear, and how to choose a proper structure and reference pattern in terms of all the performance indexes is still a problem. In this paper, the performance indexes of the trellis dirty paper watermarking and its factors that affect the performances...
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