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Fractal coding has been proved useful for image compression. It is also be proved effective for image retrieval based on content. We generate image index file utilize fractal image code, also define the distance between two images as the measure standard for matching similar image. Differently with image compression we don't pay more attention on image compression ratio, but more care about the costing...
In the communications of network, different RED parameters can be set to the WRED algorithm to suit for different levels of business, to reach the goal of differentiating the services. The package loss curve of the WRED algorithm is improved in this paper. Thus the throughput of the network enlarges and the rate of the package loss becomes lower. The improvement is testified by simulation of PTN network...
The analysis and testing for electromagnetic compatibility of WLAN used in medical environment are made in this paper. According to working principles of medical devices and WLAN equipment, the testing data and results are analyzed. The conclusion for the EMC is that WLAN is suitable for the medical environment, if its design and use are reasonable. The methods for WLAN equipment and medical devices...
HF channel sounding requires perfect autocorrelation property of the sounding sequences. Compared with other pseudonoise sounding sequences, Zadoff-Chu sequence gets great attention due to its predominant periodic autocorrelation property. In order to adapt the spectrum property of Zadoff-Chu sequence to the requirement of HF channel sounding transmitter-receiver, the Formula Direct Interpolation...
The commercialization of LOFT solves the major problem of capital source that occurred in the former process of historic building reconstruction. At the same time, the spatial characteristics of LOFT marked by strong senses of nature, authenticity, and romance help us to see the possibility of the potential development concerned with buildings' self-growth and city's organic renewal. This article...
Nowadays wireless communication has become ubiquitous around the world and its application for gauging consumption of utilities by customers is rapidly gaining pace, not only in the developed world but also in the developing countries. In this paper, we propose a automatic meter reading (AMR) system which is a combination of wireless sensor network (WSN) and worldwide interoperability for microwave...
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