Zong Da Chen

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Ad hoc networks can be formed on highways among moving vehicles, each equipped with a wireless LAN device. However, during times of low traffic density, it is likely that such networks are disconnected. This paper tests the hypothesis that the <i>motion</i> of vehicles on a highway can contribute to successful message delivery, provided that messages can be(More)
The lasers and waterjets have been used in industry for decades now. The two technologies have procured many overlapping applications and it is thus important for the industry to understand both processes, in order to select the more optimum method in different situations. The comprehensive knowledge on quality and operating cost would help the users to(More)
In this paper, an adaptive predictive multiplicative autoregressive (APMAR) method is proposed for lossless medical image coding. The adaptive predictor is used for improving the prediction accuracy of encoded image blocks in our proposed method. Each block is first adaptively predicted by one of the seven predictors of the JPEG lossless mode and a local(More)
To study the etiology of inpatients with diarrhoea, 372 inpatients with diarrhoea were studied in Suixian county in 1990. Three causative agents as diarrhoeagenic bacteria, rotavirus and diarrhoeagenic parasites were isolated. 12 kinds of diarrhoeal pathogens with 237 strains were isolated. The overall isolation rate was 63.71%, including diarrhoeagenic(More)
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