Influence of Angle Between Elements on An Array Consisting of HF 2-level LPDAs
阵元夹角对短波双层对数周期天线阵的影响
Regarding the financial evaluation of reserved double line project, the paper carries out an analysis to the currently applied "net present value method" and introduces the thoughts of "real option" to fully consider the uncertainty of time for railway double line construction.
铁路项目财务评价在项目决策中具有重要作用,针对铁路预留双线项目的财务评价问题,对目前采用的净现值法进行分析,引入实物期权思想,充分考虑铁路双线建设时间的不确定性,在Black-Scholes公式基础上建立铁路预留双线项目评估模型,并利用该模型对某铁路项目进行案例分析和验证。
On the Dual Log-periodic Airborne Antenna with High-Gain and Wideband in Small Size;
机载高增益宽带小型化双对数周期天线的研究
Influence of Angle Between Elements on An Array Consisting of HF 2-level LPDAs
阵元夹角对短波双层对数周期天线阵的影响
A UWB Dual-polar LPMAs with High isolation
0.8～6GHz超宽带高隔离度双极化对数周期天线
Design and Realization of a Spaceborne Dual-circular-polarization Multi-beam Log-periodic Dipole Antenna Array
星载双圆极化多波束对数周期天线阵的设计与实现
Analysis and design of log-periodic meander dipole array
对数周期曲线振子天线的分析与设计
Analysis and Design of the Log-Periodic Antenna Applied in UWB System;
应用于UWB的对数周期天线分析与设计
Printed Wideband Log-Periodic Dipole Antenna Fed bySubstrate Integrated Waveguide
基片集成波导对数周期偶极子阵列天线研究
Analysis on Vehicle-borne Log-periodic Monopole Antenna Using the Method of Moment
车载宽叶单极对数周期天线的矩量法分析
Researches on Inductive Load in Method Log-periodic Dipole Antenna
对数周期偶极子天线的感性加载方法研究
Calculation for Phase Center of LPDA with Variable Step
计算对数周期偶极子天线相位中心的变步长法
Approximate Method on the Calculation of Logarithmic Antenna Structure Size
对数周期天线结构尺寸的一种近似计算法
Log-Periodic Dipole Antenna Fed by Half-Mode Substrate Integrated Waveguide
半模基片集成波导馈电的对数周期偶极子天线
bifilar helix biperiodic electrostatic focusing
双螺线双周期静电聚焦
Characteristics Analysis of a Fan-shaped Array of Log-periodic Dipole Antennas and Implementation of Software;
对数周期偶极天线扇形阵的特性分析及其软件实现
Maximum Likelihood Estimator of a Periodic Bilinear Model
一类周期双线性模型的极大似然估计
Semi-period of doubly even order magic square transformed digital image.
双偶阶幻方变换数字图像的半周期
Converts a serial number to a day of the week
将日期的序列数转换成一周中的天数
Periodic Solution of Linear Autonomous Neutral Differential Equations with Delays;
常系数线性中立型方程的一般周期的周期解
