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Researched and developed the software system of Information Management and Decision Support System of the hidden danger troubleshooting of Coal Mine. By using the technology of collaborative software to realize fast circulation of information, dynamic tracking, rapid feedback, and closed-loop management of transaction processing for the hidden danger, and by applying the technology of data mining,...
With the methods of geometry, sites' structure of HF air-to-ground communications and the sites-setting methods are studied. It is intent on putting forward ways and means to allocate sites of HF air-to-ground communications efficiently. After proving the theory that coverage efficiency of circles with the same radius is higher than the coverage efficiency of circles with different radiuses, the optimal...
According to the characteristics of present high frequency (HF) air-ground communications, this paper not only puts forward the function relation between aircraft flying position and time, but also proposes a new frequency choosing strategy according to SNR sorting. This new strategy based on ITS area SNR data ascertains the distribution of every channel's SNR along time on the route through interpolated...
In this paper, a zero-watermarking algorithm based on fuzzy adaptive resonance theory (ART) is proposed. There are three roles in the algorithm: the signer, the verifier, and trusted authority (TA). The signer is responsible for constructing the verification information of the host image with fuzzy ART, the verifier can be anyone who wants to check the ownership of the host image, and TA is responsible...
With the lower profit of construction enterprises these years, that low bid and high claim has been an important means for the construction enterprises to exist and develop, which is an effect approach to make profit maximization. In this paper, the cause, the responsibility and the evidence of the claim events were classified, wit Visual Basic 6.0, PHP and Microsoft SQL Server 2000 that are used...
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