A new idea to design fibre-based digital autocorrelation technique for completely characterizing ultrashort pulses is presented.
Transmission electron microscopy(TEM)stands out as one of the most powerful tools for characterizing materials at multiple scales and dimensions.This unique tec
书法艺术,它从一开始的简单的书写形式,经过历代书家的发展后,俨然成为了具有独特审美特征的造型艺术.在我国具有悠久的发展历史,是汉字书写的一种表达艺术形式.历经几干年沧
气体流量测量仪器是过程控制中普遍需要的计量仪器。本单片机多通道高精度气体流量计是新一代的气体流量计量仪器。它充分利用8031单片机的内部软、硬件资源,具有体积小、成
The Gouy phase shift modulates the carrier-envelope phase of a focused few-cycle laser pulse. We investigate the variations of the carrier-envelope (CE) phase o
We analyse the integrable boundary conditions for the one-dimensional N-component generalized Bariey modelwith a hard-core repulsion. The Bethe ansatz equations
对于SAR风浪图像而言,速度聚束调制常导致图像中散射面元沿方位向产生位置交叠,从而引起强烈非线性特征,难于仿真;另外,SAR图像强度是由雷达飞行过程中多次观测所得的散射回波相干叠加获得,然而,传统SAR海浪图像仿真方法中并未考虑该相干叠加过程。为了解决第一个问题,文中首先应用线性滤波法对海浪运动引起的速度聚束效应进行仿真,统计方位向各像素位置处发生交叠的散射面元数目,并将各散射面元回波进行非相干叠
We study theoretically the electronic and transport property for an armchair-edge graphene nanoribbon (GNR)with 12 and 11 transversal atomic lines, respectively
Urothermal method was firstly used to synthesize zeolitic tetrazolate-imidazolate frameworks.By using 2-imidazolidone hemihydrate(e-urea)as solvent,a new compou