To analyze the type of Algerian’s gallstones and put forward relative measures of prevention and treatment, The NICOLET 170SX FT-IR spectrometer was used to measure the infra-red spectrum and analyze the feature of s...To analyze the type of Algerian’s gallstones and put forward relative measures of prevention and treatment, The NICOLET 170SX FT-IR spectrometer was used to measure the infra-red spectrum and analyze the feature of spectrum of Algerian’s gallstones. The results shown that Algerian have cholesterol gallstones. Reasons to form Algerian’s multiple cholesterol gallstones were investigated. We have put forward five suggestions to prevent and treat cholelithiasis.展开更多
Multiple-tone interference is a kind of narrow band interference appears in Direct Sequence (DS) Spread Spectrum (SS) communication system frequently that degrades the system performance. Most open literature studies ...Multiple-tone interference is a kind of narrow band interference appears in Direct Sequence (DS) Spread Spectrum (SS) communication system frequently that degrades the system performance. Most open literature studies on narrowband interference rejection assumed stationary SS signal and interference. SS signal and interference are modeled as cyclostationary and based on cyclostationary model, an interference rejection algorithm is proposed. Through computer simulation, it is shown that the performance of the SS system can be improved considerably after adopting this algorithm.展开更多
文摘To analyze the type of Algerian’s gallstones and put forward relative measures of prevention and treatment, The NICOLET 170SX FT-IR spectrometer was used to measure the infra-red spectrum and analyze the feature of spectrum of Algerian’s gallstones. The results shown that Algerian have cholesterol gallstones. Reasons to form Algerian’s multiple cholesterol gallstones were investigated. We have put forward five suggestions to prevent and treat cholelithiasis.
文摘Multiple-tone interference is a kind of narrow band interference appears in Direct Sequence (DS) Spread Spectrum (SS) communication system frequently that degrades the system performance. Most open literature studies on narrowband interference rejection assumed stationary SS signal and interference. SS signal and interference are modeled as cyclostationary and based on cyclostationary model, an interference rejection algorithm is proposed. Through computer simulation, it is shown that the performance of the SS system can be improved considerably after adopting this algorithm.
