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Traditional beamformer design methods suffer from a frequency varying beamwidth, making them less effective for wideband applications. Existing approaches that try to solve this problem demonstrate degraded beamformer performance in terms of sidelobe level attenuation and sensitivity, making them less robust to interference and array attribute perturbations. Another common issue for existing approaches...
In this paper, we introduce a voice activity detection (VAD) algorithm based on spectral clustering and diffusion kernels. The proposed algorithm is a supervised learning algorithm comprising of learning and testing stages: A sample cloud is produced for every signal frame by utilizing a moving window. Mel-frequency cepstrum coefficients (MFCCs) are then calculated for every sample in the cloud in...
Serum amyloid A (SAA) is a major acute-phase protein whose biochemical functions remain largely obscure. Human rheumatic synovial fluids were screened by high performance liquid chromatography mass spectrometry for SAA-derived peptides, specifically the sequence AGLPEKY (SAA 98-104 ) which was previously shown to modulate various leukocyte functions. Two such fluids...
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