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您的检索式：作者名="CHENG Linjuan"
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| 1 | A two-stage convolutional recurrent network-based stereophonic acoustic echo cancellation approach with complex spectrum显示文摘A two-stage convolutional recurrent network(CRN) with complex spectral input features is proposed to address the stereophonic acoustic echo cancellation(SAEC) problem.The proposed algorithm avoids the decorrelation of far-end signals, which solves the non-unique solution problem of the adaptive filter-based SAEC and ensures the stereo sound quality and spatial perception. It deals with SAEC problem in two stages. In the first stage, a CRN model is used to estimate the echo signal based on the microphone and the far-end signals. In the second stage, a CRN model is used to estimate the near-end speech based on the microphone input signal and the estimated echo signal from the first stage. The discrimination between echo and near-end signal of the model can be improved by using the estimated echo signal as a priori information, which benefits the estimation of near-end signal. The input features and training targets used in the network are the complex spectral of signals, which can recover the phase information of the near-end speech. Experimental results show that the SAEC algorithm based on the proposed two-stage CRN model has significantly better performance than the traditional algorithms and single-stage CRN model in terms of both echo suppression in single-talk period and speech quality in double-talk period. | CHENG Linjuan PENG Renhua ZHENG Chengshi LI Xiaodong | 2023 | Chinese Journal of Acoustics2023，42，4： | 0 |
| 2 | An innovative method used for the identification of N-glycans on soybean allergenβ-conglycinins显示文摘β-Conglycinin is one of the major allergens existed in soybean.N-Glycans attached to theβ-conglycinin influenced the immunoreactivity and antigen presenting efficiency ofβ-conglycinin.In this study,we described a new method used to release and collect the N-glycans fromβ-conglycinin,and the N-glycans existed in linear epitopes ofβ-conglycinin were identified.Glycopeptides hydrolyzed fromβ-conglycinin were purified by cotton hydrophilic chromatography.Trifluoromethylsulfonic acid was then used to release glycans from glycopeptides,and new glycopeptides containing one single N-acety1-D-glucosamine(G1 cNAc)moiety were then utilized for mass spectrometry.Five glycosylation sites(Asn-199,Asn-455,Asn-215,Asn-489 and Asn-326)and 22 kinds of glycopeptides were identified.It is noteworthy that the peptide VVN^(#)ATSNL(where^(#)represents for the glycosylation site)was analyzed to be both glycopeptide and linear epitope.Our results provided a new method for the N-glycoform analysis of food allergens,and laid a foundation for understanding the relationship between glyco sylation and food allergy. | Cheng Li Yang Tian Jianli Han Yu Lu Meiyi Zou Yue Jia Chengjian Wang Linjuan Huang Zhongfu Wang | 2023 | Food Science and Human Wellness2023，12，3： | 0 |
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