Shuhong Wu

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According to the character of codebook size and codeword dimension in low delay speech coding algorithm, a codebook design algorithm based on modified self-organizing feature map (SOFM) neural network is put forward. The input vectors and weight vectors are normalized. In order to reduce the computation complexity and improve the codebook performance,(More)
A high performance liquid chromatographic (HPLC) method was established for the simultaneous determination of four highly polar anti-diabetic drugs, metformin hydrochloride, phenformin hydrochloride, acarbose, and voglibose, in Chinese traditional patent medicines. The separation was performed on a Thermo NH2 analytical column (4.6 mm x 250 mm, 5 microm),(More)
OBJECTIVE To investigate the effects of different tooth preparations on three-dimensional adaption of computer aided design and computer aided manufacturing (CAD/CAM) crowns based on the reverse engineering. METHODS The tooth preparation model of the left maxillary first molar was scanned to build five different tooth preparations using the NX Imageware(More)
As a new and effective testing cite for electromagnetic compatibility test, the reverberation chamber, especially a newly built one, must verify its field uniformity. So, when undertaking a study on a reverberation chamber, its field uniformity is a key indicator. This article, in accordance with the actual dimension of a reverberation chamber, built an(More)
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