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The traveling salesman problem (TSP) in operations research is a classical problem in discrete or combinatorial optimization. It is a prominent illustration of a class of problems in computational complexity theory which are classified as NP-hard. Ant colony optimization inspired by co-operative food retrieval have been widely applied unexpectedly(More)
BACKGROUND Studies have shown that permissive hypotension for uncontrolled hemorrhagic shock can result in good resuscitation outcome. The ideal target mean arterial pressure (MAP) and the tolerance time for permissive hypotension have not been determined. METHODS To elucidate the ideal target MAP and tolerance time for permissive hypotension with(More)
BACKGROUND Our previous and other studies have shown that hypotensive or hypothermic resuscitation have beneficial effects on uncontrolled hemorrhagic shock. Whether hypothermia can increase the beneficial effect of hypotensive resuscitation on hemorrhagic shock is not known. METHODS Two-hundred and twenty Sprague-Dawley rats were used to make(More)
Text superimposed on the video frames provides supplement but important information about video content. Recognizing artificial text embedded in video frames is very important and meaning for video indexing and retrieval. In this paper, an efficient approach of text extraction based on temporal information and mathematical morphology is presented. In the(More)
In this paper, a robust gait recognition algorithm based on key frame and ellipse model is proposed, which solves the problems including finding key frames on discontinuous contour segmentation and accurate feature extraction on ellipse model. Firstly, a robust extraction algorithm of key fame is introduced, which makes detection of key fames easier and(More)
Cooling towers are a source of Legionnaires' disease. It is important from a public health perspective to survey industrial cooling towers for the presence of Legionella. Prospective surveillance of the extent of Legionella pollution was conducted at factories in Shijiazhuang, China between March 2011 and September 2012. Overall, 35.7% of 255 industrial(More)
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