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AIM To examine the recent trend in the incidence of clinically diagnosed type 2 diabetes during the period of 1999-2005 in Harbin, China. METHODS The records of newly diagnosed type 2 diabetes from hospitals and clinics in Harbin were reported to the Harbin Centre for Disease Control and Prevention. About 3 million (33%) of the total population were from(More)
As the development of teleeommunication technology, the cognitive radio is considered to be an effective way, and become the research focus in the past years. At the same time, the Auction Channel Allocation Mechanism for cognitive radio system which is validated is an effective and convenient way to solve the problem in cognitive radio. In this paper we(More)
In this paper, a novel frequency-band coded orthogonal UWB pulse design method based on chirp (linear frequency modulated, LFM) signal is presented. The basic idea of the new approach is that the up-chirp pulses and down-chirp pulses located at different frequency-bands are used to synthesize the orthogonal pulses by coding with pseudo noise (PN) sequence(More)
In order to mitigate the mutual interference between ultra-wideband (UWB) impulse radio and other existing wireless systems, a novel adaptive interference-avoiding UWB pulse, in the context of the appealing cognitive radio, is presented based on the radial basis function neural networks. Theoretical and implementation architecture for UWB pulse generator is(More)
As the latest video coding standard, High Efficiency Video Coding (HEVC) achieves high coding performance, up to 50% bit rate savings compared with the previous standard, H.264/Advanced Video Coding while maintaining the same output video quality. Intra-coding in the HEVC significantly improves the compression efficiency, due to the various kinds of coding(More)
Two points need to be considered on power loading policy of cognitive radio (CR) systems. The first is to maximize the channel capacity over the given frequency band, which is detected usable for CR systems. The second is the out-of-band interference suppression of the CR systems. In the paper based on the mathematical expression of the interference power(More)
OBJECTIVE To evaluate the clinical results of arthroscopic treatment of anterior cruciate ligament (ACL) tibial eminence avulsion fractures in adolescents with epiphyseal unclosure. METHODS Between January 2011 and October 2013, 35 knees with ACL tibial eminence avulsion fractures (35 patients with epiphyseal unclosure) were arthroscopically treated with(More)