Frequency locking of propagating wave fronts in reaction - diffusion systems 反應擴散系統(tǒng)中波傳播的鎖頻現(xiàn)象
Summing up time harmonic propagated waves of all frequency gives the pulse propagation along the line 加總所有頻率成份弦波之時域傳播即得時域脈波之傳播。
Least fig . 3 be interpreted as the signature of zonally propagating waves , it is worth recalling what is said in the preceding chapter 為了使圖3不被解釋成緯向傳播的波的特征,有必要回顧一下前一章所論述的。
Based on the scalar diffraction theory and the boundary condition of rayleigh - sommerfeld , the accurate on - axis propagating wave function of plane wave diffracted by small circular band is obtained by solving the first integral of rayleigh - sommerfeld 摘要從標量衍射理論出發(fā),采用瑞利索末菲衍射邊界條件,通過求解第一類瑞利索末菲衍射積分得到平面波經圓環(huán)衍射后軸上的波函數(shù),進而分析軸上的光強特性以及光強極值數(shù)量、位置和大小與衍射圓環(huán)內外孔徑的關系。
It shows that the coaxial disk cylindrical waveguide with longitudinal ribs , which is one of large diameter , all - metal structure and allows for high average power capability , can improve the propagating wave ' s characteristics and gain a relative broad bandwidth by means of modifying the geometrical dimensions of the circuits 結果表明:脊加載盤荷波導是一種尺寸大,功率容量大的全金屬結構,在加脊后可以改善導波特性,提高帶寬。二、對脊加載盤荷波導注波互作用的線性理論進行了研究。