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The algorithm based on stack to remove the small area noises in binary microalgae image is presented in this paper. The denoising of image is accomplished by using this algorithm through scanning image one time. The new algorithm not only preserves signal's original features, but also has stronger ability to remove noise. The numerical experiments have shown that the algorithm is very effective in...
The way Oracle locked data in DML and the reasons for DML lock blocking were introduced in this study. To confirm the successful parallel visits to the same data for users, various lock technologies were adopted to realize the data integrality. The solving methods of Oracle locks blocking in some practical applications were presented.
The traditional TF-IDF algorithm is a common method that is used to measure feature weight in text categorization. However, the algorithm doesn't take the distribution of feature terms in inter-class and intra-class into consideration. Consequently, the algorithm can't effectively weigh the distribution proportion of feature items. In order to solve this problem, information entropy in inter-class...
This paper presents a study of the use of EMAT (Electromagnetic Acoustic Transducer) to generate and detect the single Lamb wave in the different thickness steel plate. Using an EMAT with a given wavelength, the desired single Lamb wave mode are generated and detected by controlling the center frequency of narrowband signals, and the center frequency of waves is about from 0.18MHz to 1MHz. The experimental...
Among numerous seawater treatment methods, electrolysis belongs to a relatively ideal method with good treatment effect. Basically, it can reach the standards of safe, effective, economical and environment-friendly. The control circuit part design of ballast seawater treatment system based on electrolysis is finished in this paper. This system takes a MCU as its control core, synchronous circuit module...
After entering the 1990s, a new metal oxide semiconductor device-- insulated gate bipolar transistor (IGBT) was first widely used in the industrial driving device. The voltage source converter using IGBT has the ability to turn off current and it can also carry out passive inversion by using pulse width modulation (PWM) technology, which solves the problem of DC transmission to load points without...
Ring signature is of vital importance to secure electronic voting. Many ID-based ring signature schemes have been put forward, but most of them are not constant-size. Au etc proposed a constant-size ID-based ring signature without random oracles. The size of the signature is independent of the size of the ring. In stronger security model, the constant-size ID-based ring signature scheme can be forged...
An image matching algorithm that uses subdivision wavelet and the local projection entropy of image is proposed and tested in this paper. Subdivision wavelet, which is of the second generation wavelet, has much lower computing cost than the first generation wavelet due to the nonentity of the shifts and dilations. The initial properties of signal can be retained when signal is transformed by subdivision...
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