For the problem that the linear scale of intrusion signals in the optical fiber pre-warning system （OFPS） is inconsistent, this paper presents a method to correct the scale. Firstly, the intrusion signals are interc...For the problem that the linear scale of intrusion signals in the optical fiber pre-warning system （OFPS） is inconsistent, this paper presents a method to correct the scale. Firstly, the intrusion signals are intercepted, and an aggregate of the segments with equal length is obtained. Then, the Mellin transform （MT） is applied to convert them into the same scale. The spectral characteristics are obtained by the Fourier transform. Finally, we adopt back-propagation （BP） neural network to identify intrusion types, which takes the spectral characteristics as input. We carried out the field experiments and collected the optical fiber intrusion signals which contain the picking signal, shoveling signal, and running signal. The experimental results show that the proposed algorithm can effectively improve the recognition accuracy of the intrusion signals.展开更多
了解OFP卵型家族蛋白(OVATE family proteins)在木豆中的特征,为木豆OFP基因的应用提供参考。利用生物信息学方法对木豆OFP蛋白基因进行全基因组鉴定及表达模式分析。结果表明,木豆含有21个OFP蛋白基因,家族成员间理化特性差异不大,均...了解OFP卵型家族蛋白(OVATE family proteins)在木豆中的特征,为木豆OFP基因的应用提供参考。利用生物信息学方法对木豆OFP蛋白基因进行全基因组鉴定及表达模式分析。结果表明,木豆含有21个OFP蛋白基因,家族成员间理化特性差异不大,均属于不稳定亲水性蛋白,且均含有保守基序;进化树分析中木豆和拟南芥二者的OFP蛋白相互交错聚类在一起,亲缘关系较近的OFP蛋白可能具有相似的功能;启动子顺式响应元件分析表明木豆OFP基因可能在逆境胁迫响应、激素调节和生长发育方面发挥重要作用;蛋白二级和三级结构均以α-螺旋和无规则卷曲结构为主要组成成分;组织特异性表达表明OFP基因在顶芽中的表达量较大,在根和叶中的表达量较小,具有组织表达差异;启动子顺式响应元件结合热胁迫表达分析表明,高温胁迫下CcOFP1表达量上调,CcOFP9、CcOFP11表达量下调。研究结果为探索OFP蛋白基因在木豆生长发育和非生物胁迫响应方面的生物学功能提供依据。展开更多
基金This work was supported by the National Natural Science Foundation of China （Grant Nos. 61571014 and 61601006） Beijing Nature Science Foundation （Grant No. 4172017） General Project of Science and Technology Program of Beijing Education Commission （Grant No.KM201610009004）.
文摘For the problem that the linear scale of intrusion signals in the optical fiber pre-warning system （OFPS） is inconsistent, this paper presents a method to correct the scale. Firstly, the intrusion signals are intercepted, and an aggregate of the segments with equal length is obtained. Then, the Mellin transform （MT） is applied to convert them into the same scale. The spectral characteristics are obtained by the Fourier transform. Finally, we adopt back-propagation （BP） neural network to identify intrusion types, which takes the spectral characteristics as input. We carried out the field experiments and collected the optical fiber intrusion signals which contain the picking signal, shoveling signal, and running signal. The experimental results show that the proposed algorithm can effectively improve the recognition accuracy of the intrusion signals.
文摘了解OFP卵型家族蛋白(OVATE family proteins)在木豆中的特征,为木豆OFP基因的应用提供参考。利用生物信息学方法对木豆OFP蛋白基因进行全基因组鉴定及表达模式分析。结果表明,木豆含有21个OFP蛋白基因,家族成员间理化特性差异不大,均属于不稳定亲水性蛋白,且均含有保守基序;进化树分析中木豆和拟南芥二者的OFP蛋白相互交错聚类在一起,亲缘关系较近的OFP蛋白可能具有相似的功能;启动子顺式响应元件分析表明木豆OFP基因可能在逆境胁迫响应、激素调节和生长发育方面发挥重要作用;蛋白二级和三级结构均以α-螺旋和无规则卷曲结构为主要组成成分;组织特异性表达表明OFP基因在顶芽中的表达量较大,在根和叶中的表达量较小,具有组织表达差异;启动子顺式响应元件结合热胁迫表达分析表明,高温胁迫下CcOFP1表达量上调,CcOFP9、CcOFP11表达量下调。研究结果为探索OFP蛋白基因在木豆生长发育和非生物胁迫响应方面的生物学功能提供依据。
