Application of photonic crystal in radar crosssection reduction of scattering on airplane canopy 光子晶体在座舱罩雷达散射截面减缩中的应用
The annual rings of plants growing in temperate climates can be seen in crosssection as two consecutive rings of light and dark - colored xylem tissue 在有显著季节性气候的地区中,不少植物的次生木质部在正常情况下,每年形成一轮(色浅层和色深层) 。
The unique blade louver damper with heared sear air is the solution to large crosssection / high temperature damper applications such as air heater isolation , fgd systems 带加热密封空气的单层叶片百叶窗式档板门,可用于大截面烟道档板门和高温档板门.例如:空气加热器的隔绝门,烟气脱硫系统中
The connection between the torque and the polarized charges is established . on the base of mathematical model of torsional effect , using multivariate unrestrained nonlinear optimization method , we research cutting angles and parameters of crosssection to get best torsional sensitivity 在建立石英晶体扭转效应模型的基础上,应用多变量、无约束非线性优化方法对于晶体切型、截面形状等参数进行了优化,以获得最佳扭转灵敏度。