[ Objective] Study on the phylogenetic analysis of the 16S rDNA and insecticidal characteristics of strain BH-1 isolated from diseased larva of Anoplophora glabripennis （Motseh.） [ Method ] The strain was identified...[ Objective] Study on the phylogenetic analysis of the 16S rDNA and insecticidal characteristics of strain BH-1 isolated from diseased larva of Anoplophora glabripennis （Motseh.） [ Method ] The strain was identified by routine method and inoculated onto healthy Anoplophora glabripennis （Motseh.） for observing insecticidal effect, further 16S DNA was amplified by the specific primers for sequencing and homology analysis. [ Result] The mortality of second instar ofAnoplophora glabripennis（ Motseh. ） reached 72.7% 8 d after 10^10cfu/ml BH-1 was inoculated. The homology of 16S DNA sequences between BH-1 and Serratia marcescens accessed in GenBank reached 99.5%. Combined with the results of routine identification, BH-1 was identified as S. marcescens. [Conclusion] BH-1 could be used for biological control ofAnoplophora glabripennis （Motsch.）.展开更多
There is an increasing trend to apply GNSS continuous observation of short baselines to the monitoring of engineering works, such as bridges and dams, for their structural analysis and safety control. In the case of l...There is an increasing trend to apply GNSS continuous observation of short baselines to the monitoring of engineering works, such as bridges and dams, for their structural analysis and safety control. In the case of large dams, one important application of the GNSS continuous observation is thc establishment of early warning systems that demand accurate, frequently updated information and where the analysis of the baseline time series, in order to separate signal from noise is mandatory. The paper presents a study on the performance of linear filters of the asymmetric moving average type to smooth baseline time series. The transfer function of the filter is adopted as a smoothing criterion to choose an adequate order for the moving average, in face of the spectral density function of the baseline time series. Onc series of measurements of a short test baseline （325 m）, materialized in the campus of the National Laboratory for Civil Engineering, is used as an example of the proposed strategy.展开更多
基金Co-constructed Program of Beijing Education Committee for Scientific Research BaseResearch Fund for the Doctoral Program of Higher Education (20030022015)Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT0607)~~
文摘[ Objective] Study on the phylogenetic analysis of the 16S rDNA and insecticidal characteristics of strain BH-1 isolated from diseased larva of Anoplophora glabripennis （Motseh.） [ Method ] The strain was identified by routine method and inoculated onto healthy Anoplophora glabripennis （Motseh.） for observing insecticidal effect, further 16S DNA was amplified by the specific primers for sequencing and homology analysis. [ Result] The mortality of second instar ofAnoplophora glabripennis（ Motseh. ） reached 72.7% 8 d after 10^10cfu/ml BH-1 was inoculated. The homology of 16S DNA sequences between BH-1 and Serratia marcescens accessed in GenBank reached 99.5%. Combined with the results of routine identification, BH-1 was identified as S. marcescens. [Conclusion] BH-1 could be used for biological control ofAnoplophora glabripennis （Motsch.）.
文摘There is an increasing trend to apply GNSS continuous observation of short baselines to the monitoring of engineering works, such as bridges and dams, for their structural analysis and safety control. In the case of large dams, one important application of the GNSS continuous observation is thc establishment of early warning systems that demand accurate, frequently updated information and where the analysis of the baseline time series, in order to separate signal from noise is mandatory. The paper presents a study on the performance of linear filters of the asymmetric moving average type to smooth baseline time series. The transfer function of the filter is adopted as a smoothing criterion to choose an adequate order for the moving average, in face of the spectral density function of the baseline time series. Onc series of measurements of a short test baseline （325 m）, materialized in the campus of the National Laboratory for Civil Engineering, is used as an example of the proposed strategy.
