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| 1 | Stochastic stability of quasi-integrable Hamiltonian systems with time delay by using Lyapunov function method显示文摘The asymptotic Lyapunov stability of one quasi-integrable Hamiltonian system with time-delayed feedback control is studied by using Lyapunov functions and stochastic averaging method.First,a quasi-integrable Hamiltonian system with time-delayed feedback control subjected to Gaussian white noise excitation is approximated by a quasi-integrable Hamiltonian system without time delay.Then,stochastic averaging method for quasi-integrable Hamiltonian system is used to reduce the dimension of the original system,and after that the Lyapunov function of the averaged It equation is taken as the optimal linear combination of the corresponding independent first integrals in involution.Finally,the stability of the system is determined by using the largest eigenvalue of the linearized system.Two examples are used to illustrate the proposed procedure and the effects of delayed time on the Lyapunov stability are discussed as well. | LING Quan 1,JIN XiaoLing 1 &HUANG ZhiLong 2 1 Department of Mechanics,Zhejiang University,Hangzhou 310027,China 2 State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China | 2010 | Science China(Technological Sciences)2010，53，3： | 5 |
| 2 | Synthesis and properties of carbon dioxide-epoxides copolymers from rare earth metal catalyst显示文摘 | QUAN Zhilong MIN Jiadong ZHOU Qinhai | 2003 | Macromol Syrup2003，195，： | 1 |
| 3 | Synthesis and Properties of Carbon Dioxide-Epoxides Copolymers from Rare Earth Metal Catalyst显示文摘 | Quan Zhilong Min Jiadong Zhou Qinhai | 2003 | Macromol Symp2003，195，1： | 1 |
| 4 | Copolymerization of CO2 and propylene oxide under rare earth ternary catalyst: Design of ligand in yttrium complex 显示文摘 | Quan Zhilong Wang Xianhong Zhao Xiaojiang | 2003 | Polymer2003，44，19： | 1 |
| 5 | Synthesis and Properties of Carbon Dioxide-epoxides Copoly mers from Rare Earth Metal Catalyst显示文摘 | Quan Zhilong Min Jiadong Zhou Qinhai | 2003 | Macromol Symp2003，195，： | 1 |
| 6 | Correction to: Rapid Acquisition of High-Quality SARS-CoV-2 Genome via Amplicon-Oxford Nanopore Sequencing显示文摘Correction to:Virologica Sinica(2021)36:901-912 http://gffzzd3cc09b8251d45dfs9xnkxq9wkvv06p5p.ffgz.tsg.suse.edu.cn/10.1007/sl 2250-021-00378-8 The original version of article contains errors in Figure 4,Supplementary Figure S2,Supplementary Table S2,and the corresponding description in part 3 of“Results”section. | Yi Yan Ke Wu Jun Chen Haizhou Liu Yi Huang Yong Zhang Jin Xiong Weipeng Quan Xin Wu Yu Liang Kunlun He Zhilong Jia Depeng Wang Di Liu Hongping Wei Jianjun Chen | 2021 | Virologica Sinica2021，36，6： | 0 |
| 7 | Rapid Acquisition of High-Quality SARS-CoV-2 Genome via Amplicon-Oxford Nanopore Sequencing显示文摘Genome sequencing has shown strong capabilities in the initial stages of the COVID-19 pandemic such as pathogen identification and virus preliminary tracing.While the rapid acquisition of SARS-Co V-2 genome from clinical specimens is limited by their low nucleic acid load and the complexity of the nucleic acid background.To address this issue,we modified and evaluated an approach by utilizing SARS-Co V-2-specific amplicon amplification and Oxford Nanopore Prometh ION platform.This workflow started with the throat swab of the COVID-19 patient,combined reverse transcript PCR,and multi-amplification in one-step to shorten the experiment time,then can quickly and steadily obtain high-quality SARS-Co V-2 genome within 24 h.A comprehensive evaluation of the method was conducted in 42 samples:the sequencing quality of the method was correlated well with the viral load of the samples;high-quality SARS-Co V-2 genome could be obtained stably in the samples with Ct value up to 39.14;data yielding for different Ct values were assessed and the recommended sequencing time was 8 h for samples with Ct value of less than 20;variation analysis indicated that the method can detect the existing and emerging genomic mutations as well;Illumina sequencing verified that ultra-deep sequencing can greatly improve the single read error rate of Nanopore sequencing,making it as low as 0.4/10,000 bp.In summary,high-quality SARS-Co V-2 genome can be acquired by utilizing the amplicon amplification and it is an effective method in accelerating the acquisition of genetic resources and tracking the genome diversity of SARSCo V-2. | Yi Yan Ke Wu Jun Chen Haizhou Liu Yi Huang Yong Zhang Jin Xiong Weipeng Quan Xin Wu Yu Liang Kunlun He Zhilong Jia Depeng Wang Di Liu Hongping Wei Jianjun Chen | 2021 | Virologica Sinica2021，36，5： | 0 |
| 8 | Facile Preparation of PVA-AA/TiO2 Composite Gel Particles and Their Tunable Photo-catalytic Property for the Degradation of Methyl Orange显示文摘In the presence of titanium dioxide powder, cross-linking reaction between commercial polyvinyl alcohol(PVA)-based macromonomer and acrylic acid(AA) was initiated with potassium persulfate in an emulsifying system. As a result, PVA-AA/TiO2 composite gel particles were obtained. The morphology and composition of the particles were analyzed with scanning electron microscopy(SEM), energy scattering x-ray spectroscopy(EDS), Fourier infrared spectroscopy(FTIR), and thermogravimetric analysis(TGA). The analysis results confirmed that the particles were the expected ones. TiO2 was dispersed homogeneously within the spheroidal particles. Compared to the control gel, the composite gel particles not only contained Ti element but also showed higher thermal stability. In addition, the photo-catalytic behavior of the particles for the degradation of methyl orange contained in aqueous solution was examined. The particles exhibited photocatalytic characteristic for the degradation of the model dye, which could be modulated by simply varying the amount of cross-linking agent or TiO2. The photo-catalytic degradation percentage of methyl orange maintained at 91%-96% after using the particles three times, which indicated that TiO2 could played its role repeatedly via being fixated within polyvinyl alcohol-based gel. | 方艳红 SU Xiaoying QUAN Zhilong 萧聪明 | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，6： | 0 |
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