border curve meaning in English
边界曲线
Examples
- According to the radar - absorbing model , the performance of rams of various absorber - volume - percentage with various frequency and the radar obsorbing performance of which in various thickness is predicted . according to the radar - absorbing model , the prerequisites of microwave electromagnetic parameters and the border curves for a single - layer homogeneous absorbing coating backed by a perfectly conducting plate to produce zero specular reflection are obtained by the steffensen speedup approach to solve the complex transcendental equation
以吸波模型为依据，用计算机求解了单层均匀各向同性吸波材料的阻抗匹配条件，通过数值模拟得到了吸波材料阻抗匹配时电磁参数边界曲线的数值模拟等式和阻抗不匹配时宽带吸波材料电磁参数的合理搭配规则和频散特性。 - The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available . these results pointed out the direction to develop rams " . according to the radar - absorbing model , the optimized design of rams with thin - layer , light - weight , broadband and strong - absorbing is available by the simple genetic algorithms , which can effectively conduct the research work of rams to the detail . small but completely , the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up , the object function has been constructed which conform to the involved goals , the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage , the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness . when decoding , the variable restricting conditions of thickness are dynamically traced , so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient . similary , of thickness and absorber - volume - percentage , of light - weight multiple - layer multiple - ingredient . also , the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function
作为遗传算法的具体实施：根据本实验室近来研制的吸波材料，建立了吸波材料的相关数据库；构造了能真实体现“薄、轻、宽、强”优化目标的目标函数；根据材料的实际数量以及涂层厚度精度要求、吸收剂体积分数精度要求，建立了能动态扩展相应码长的自适应编码方法；首创了通过动态跟踪变量的约束条件来控制涂层总厚度的解码技术，以此实现了在不弱化宽频、高强的吸波性能目标的同时，兼顾到薄层、轻质的使用性能要求；在解码时通过动态跟踪厚度变量的约束条件，实现了多层单组分吸波涂层对重量轻的要求；通过动态跟踪厚度变量的约束条件和吸收剂体积分数的约束条件，实现了多层多组分吸波涂层对重量轻的要求；使用权重系数变化法，实现了吸波涂层的分频段吸波性能要求。