1) Peano fractal
Peano分形
1.
Effect of a finite ground plane and filled dielectric on radiation performance of a Peano fractal loaded monopole antenna is presented.
对有限地板尺寸和介质填充情况下Peano分形加载单极子天线的辐射特性进行了研究。
2) Peano fractal structure
Peano分形结构
1.
To compress the dimension of the monopole antenna and to enhance its impedance bandwidth,this paper presents a technique of loading printed Peano fractal structure and posts to the top of the monopole antenna.
采用在单极子天线顶部加载印制Peano分形结构和短路探针的方法,缩小了单极子天线的尺寸,展宽了阻抗带宽。
3) formal Peano arithmetic
形式Peano算术
1.
A simple proof of Gdel incompleteness theorems for formal Peano arithmetic is given in this note.
给出了形式Peano算术的G del不完备性定理的一个简单证
4) Peano kernel
Peano核
5) Peano-Baker series
Peano-Baker级数
1.
Peano-Baker series solution was obtained for the elastic fields of the functionally graded plate subjected to mechanical loads on its upper and lower surfaces by means of state space method.
假设材料参数沿板厚方向按同一函数规律变化,基于状态空间法,在板的上下表面作用机械荷载的情况下,获得了功能梯度平板柱形弯曲问题的Peano-Baker级数解。
2.
This paper solved the difficult problem with the theory of Peano-Baker series:first, to get the precise transfer matrix in a single period, then to simplify the computation with the periodicity.
应用Peano-Baker级数理论:首先在单周期内获得精细转移矩阵,然后利用周期性简化计算,这不仅有效地提高了全时域上的计算精度,而且还能节省较多计算量。
3.
From the basic equations of thermoelasticity,assuming that material properties have the same variations along the plate-thickness direction,Peano-Baker series solution is obtained for the thermoelastic fields of the functionally graded plate subjected to mechanical and thermal loads on its upper and lo.
从热弹性力学的基本方程出发,假设材料参数沿板厚方向(z方向)按同一函数规律变化,基于状态空间法,在板的上下表面作用机械荷载和热荷载的情况下,获得了功能梯度平板二维热弹性问题的Peano-Baker级数解。
6) peano appraises
Peano估计
补充资料:PEA
分子式:C8H11NO
分子量:137.18
CAS号:122-98-5
性质:无色液体。熔点-30℃,沸点268℃,167℃(2.27kPa),相对密度1.085。微溶于水,易溶于乙醇、乙醚、氯仿。
制备方法:将46.5g(0.5mol)苯胺、20g(0.25mol)氯乙酸和50ml水混合,加热回流3h。然后用碳酰钠溶液碱化,用水蒸出过量的苯胺,将剩余物减压蒸馏,收集161-163℃(2.13kPa)馏分,得N-羟乙基苯胺22-24g,收率64-70%。
用途:有机合成中间体。
分子量:137.18
CAS号:122-98-5
性质:无色液体。熔点-30℃,沸点268℃,167℃(2.27kPa),相对密度1.085。微溶于水,易溶于乙醇、乙醚、氯仿。
制备方法:将46.5g(0.5mol)苯胺、20g(0.25mol)氯乙酸和50ml水混合,加热回流3h。然后用碳酰钠溶液碱化,用水蒸出过量的苯胺,将剩余物减压蒸馏,收集161-163℃(2.13kPa)馏分,得N-羟乙基苯胺22-24g,收率64-70%。
用途:有机合成中间体。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条