|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Speech endpoint detection in low-SNRs environment based on perception spectrogram structure boundary parameter显示文摘The Perception Spectrogram Structure Boundary(PSSB)parameter is proposed for speech endpoint detection as a preprocess of speech or speaker recognition.At first a hearing perception speech enhancement is carried out.Then the two-dimensional enhancement is performed upon the sound spectrogram according to the difference between the determinacy distribution characteristic of speech and the random distribution characteristic of noise.Finally a decision for endpoint was made by the PSSB parameter.Experimental results show that,in a low SNR environment from-10 dB to 10 dB,the algorithm proposed in this paper may achieve higher accuracy than the extant endpoint detection algorithms.The detection accuracy of 75.2%can be reached even in the extremely low SNR at-10 dB.Therefore it is suitable for speech endpoint detection in low-SNRs environment. | WU Di ZHAO Heming HUANG Chengwei XIAO Zhongzhe ZHANG Xiaojun XU Yishen TAO Zhi | 2014 | Chinese Journal of Acoustics2014，33，4： | 8 |
| 2 | Determinant representation of Darboux transformation for the AKNS system显示文摘The n-fold Darboux transform (DT) is a 2×2 matrix for the Ablowitz-Kaup-Newell-Segur (AKNS) system.In this paper,each element of this matrix is expressed by 2n + 1 ranks'determinants.Using these formulae,the determinant expressions of eigenfunctions generated by the n-fold DT are obtained.Furthermore,we give out the explicit forms of the n-soliton surface of the Nonlinear Schrodinger Equation (NLS) by the determinant of eigenfunctions. | HE Jingsong ZHANG Ling CHENG Yi LI Yishen | 2006 | Science China Mathematics2006，49，12： | 5 |
| 3 | The Lax Representation and Darboux Transformation for Constrained Flows of the AKNS Hierarchy | Zeng Yunbo Li Yishen Zeng Yunbo Department of Applied Mathematics Tsinghua University Beijing,100084 ChinaLi Yishen Department of Mathematics University of Science and Technology of China Hefei,230026 China | 1996 | Acta Mathematica Sinica,English Series1996，12，2： | 5 |
| 4 | The multi-soliton solutions of the CH-γ equation显示文摘This paper solves the integrable CH-γequation for analytical multiple soliton solutions with the Darboux transformation method.Some properties of the soliton solutions are different from the CH equation. | CHEN ChunLi~(1+) LI YiShen~2 ZHANG JinE~3 1 Department of Mathematics,Shanghai Jiaotong University,Shanghai 200240,China 2 Department of Mathematics,University of Science and Technology of China,Hefei 230026,China 3 SB and SEF,University of Hong Kong,Pokfulam Road,Hong Kong,China | 2008 | Science China Mathematics2008，51，2： | 3 |
| 5 | Robust stabilitv of neutral stochastic interval svstems显示文摘Although interval systems have received a great deal of attention, so far there is few work on neutral stochastic interval systems (NSIS). The purpose of this paper is to initiate the study of NSIS. Using Raumikhin-type technique, a sufficient condition of exponential stability on NSIS is given. It is interesting that the NSIS changes into general stochastic interval system when the neutral item disappeared. So the results in this paper generalize some conclusions existed. | YuminZHANG YiSHEN XiaoXinLIAO | 2004 | 控制理论与应用(英文版)2004，2，1： | 2 |
| 6 | Matter-wave solitons and finite-amplitude Bloch waves in optical lattices with spatiaUy modulated nonlinearity显示文摘 | Zhang Jiefang Li Yishen Meng Jianping | 2010 | Physical Review A2010，82，03： | 1 |
| 7 | Photonic drop splitters based on self-collimation ring resonators in a silicon photonic crystal显示文摘 | Junjun Li Xiyao Chen Zexuan Qiang Junzhen Jiang Guimin Lin Xiaofu Xu Hui Li Yishen Qiu | 2011 | Optics Communications2011，，24： | 1 |
| 8 | Phase diagrams in dense-phase pneumatic transport显示文摘 | Hong Jiang Shen Yishen Tomita Y | 1995 | Powder Technology1995，84，3： | 1 |
| 9 | One Special Inverse Problem of the Second Order Differential Equation on the Whole Real Axis显示文摘 | LI YISHEN | 1981 | Chin Ann of Math1981，2，2： | 1 |
| 10 | Darboux transformations of classical Boussinesq system and its multi-soliton solutions显示文摘 | Yishen Li Jin E. Zhang | 2001 | Physics Letters A2001，，6： | 1 |
| 11 | Multimode fiber ring-down pressure sensor 显示文摘 | Huiye Qiu Yishen Qiu | 2007 | Microwave and Optical Technology Letters2007，49，7： | 1 |
| 12 | The reductions of the Darboux transformation and some solutions of the soliton equations 显示文摘 | Li Yishen | 1996 | J Phys A:Math Gen1996，29，9： | 1 |
| 13 | Bidirectional solitons on water显示文摘 | Zhang J E and Li Yishen | 2003 | Physics Review E2003，67，1： | 1 |
| 14 | Introduction of exogenous DNA into cotton embryos 显示文摘 | Zhou Guangyu Weng Jian Zeng Yishen | 1983 | Methods Enzymol1983，101，： | 1 |
| 15 | Three kinds of Darboux transformation for the evolution equations which connect with AKNS eigenvalue problem显示文摘 | Li Yishen Gu xinshen Zou Maorong | 1987 | Acta Mathematica Sinica New Series1987，13，2： | 1 |
| 16 | Transformation operator of the nonlinear evoluion equations (IV) 显示文摘 | Li Yishen Chen Dengyuan | 1986 | Acta Mathematica Sinica1986，29，1： | 1 |
| 17 | Erythrocyte-derived drug delivery systems in cancer therapy显示文摘As natural blood components,erythrocytes were good candidates for being used as drug delive ry systems to improve the pharmacokinetics,biocompatibility and many other aspects of different drugs.The advantages brought by erythrocytes making erythrocyte-derived drug delivery systems,also known as erythrocyte carriers,suitable for various anti-cancer agents,especially newly invented agents like nanoparticles,which were characterized by their undesired systematic toxicity,anaphylactic reactions and poor biocompatibility.Current researches on erythrocyte carriers in ca ncer therapy showed inspiring results in four major aspects:cancer enzyme therapy,delivering chemotherapeutic agents,combining with nanoparticles,and several other anti-cancer agents for gene or immune therapy.This novel delivering system was now undergoing the translation process from laboratory to clinical practice.Erythrocyte carriers for cancer enzyme therapy have entered the stage of clinical trial and have showed promising outcomes,and others were still at pre-clinical stage.In summary,erythrocyte-derived drug delivery system might play an indispensable role in the management of cancer in the future. | Yishen Mao Caifeng Zou Yongjian Jiang Deliang Fu | 2021 | Chinese Chemical Letters2021，32，3： | 1 |
| 18 | Junqi Huang, Introduction of exogenous DNA into cotton embryos显示文摘 | Zhou G Y Weng J Yishen Zhen | 1983 | Methods in Enzymology1983，101，： | 1 |
| 19 | Flow and Temperature Fields in Slab Continuous Casting Molds显示文摘In order to develop super-board and super-thick slabs, the flow and temperatur fields were studied in slab continuous casting molds under different practical conditions, such as slab dimensions, with-drawing slab speed, design of nozzles, and superheat tempera-ture. The results showed that it is preferred to incline nozzle bores downwards and the submerged depth of the nozzles is best kept be-tween 250-300 mm. In addition, the solidified shell is thicker at the wide face than that at the narrow face, while the thin points alongthe wide face ekist both in the center and in the some area toward each respective end. | Yin Zhang Liguo Cao Youduo He Shiqi Li Yishen Shen(Institute of Metallurgical Engineering, Baotou University of Iron & Steel Technology Baotou 014010, China)(Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China) | 2000 | International Journal of Minerals,Metallurgy and Materials2000，14，2： | 1 |
| 20 | Darboux transformations of classical Boussinesq system and its new solutions显示文摘 | Li Yishen Ma Wenxiu Zhang Jin E | 2000 | Physics Letters A2000，275，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员