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In Minimally Invasive Spine Surgery, X-ray image is very important for the whole operation process, which must be monitored though it. For normal X-ray image, the image quality is not clear and the Operation precision is hard to be guaranteed. In this paper, Several image processing methods has been used to enhanced the quality of the picture, Image enhancement and edge detection methods were used...
This paper provides an empirical analysis of the relative impacts of various factors on CO2 emissions from production of goods and services in China during two consecutive periods of 1992–1997 and 1997–2002. Results show that, on the positive side, level of final demand for goods and services was the main reason for the increase of production-source CO2 emission, while structure of net export has...
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