Xiaorong Zhao

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Although the mechanism of simian virus 40 (SV40) DNA replication has been extensively investigated with cell extracts, viral DNA replication in productively infected cells utilizes additional viral and host functions whose interplay remains poorly understood. We show here that in SV40-infected primate cells, the activated ataxia telangiectasia-mutated (ATM)(More)
Purpose: To clone the putative tumor suppressor gene(s) in a refined region at 9p21–22 undergoing loss of heterozygosity in nasopharyngeal carcinoma (NPC). Methods: We systematically screened the expression patterns of 25 novel ESTs (expressed sequence tags) in a minimal common deleted region of 9p21–22 in NPC. One of these ESTs was found down-regulated in(More)
We have developed a fast target tracking system that utilizes four cameras with lenses of different focal lengths to track an object without blurring images, even when the object moves in the depth direction away from the cameras in three-dimensional (3-D) space. This system can maintain a well-focused camera view by switching among the four input images,(More)
While existing image retrieval techniques primarily use distance to judge whether two images are similar or not, we propose to introduce an additional rotational correlation test to formulate a combined content similarity detection. We show that, with the same content based image retrieval algorithm, adding rotational correlation to the existing operational(More)
In this paper, we propose to introduce an additional rotational correlation test to formulate a combined content similarity detection. We show that, with the same content based image retrieval algorithm, adding rotational correlation and chain code to the existing operational process can improve the performance of content based image retrieval(More)
The automatic monitoring system of communication base which is an important means to realize modernization of mobile communication base station management. In this paper, we implement a monitoring system for communication base with three essential functions which are telemetry, remote control and communication. In this system, data acquisition unit, data(More)