When constructing absorbing boundary conditions for discretized hyperbolic PDEs,one needs good [(m-1)/m] rational approximants to z-1/2 on the union of a positive and a negative real line segment.
We present a method for recontructing the Schroedinger potential from Dirichlet to Neumann map measurements at the boundary of a 2D region.Our method relies on the Liouville identity relating the cond
有机薄膜晶体管(Organic Thin Film Transistors,简称OTFTs),由于其成本低廉,加工工艺简单并且可以柔性显示,而被广泛应用于柔性电子器件、生物芯片、传感器和射频识别标签等领域。相对于传统的无机晶体管,较高的阈值电压使OTFTs 工作时消耗了更多的能源,限制了其发展。为解决这一问题,我设计合成了一种全新结构的含氰基联苯型高介电常数聚合物绝缘层。