To simulate the interaction of buried defects and absorber features in EUV masks and their effects on projection printing, a prototype 2D, fast, integrated, simulator based on ray tracing and a thin mask model is presented. RADICAL (Rapid Absorber Defect Interaction Computation for Advanced Lithography), consists of three sequential steps: the propagation of the mask illumination down through t...

In this paper, we analyze the location error of Time of Arrival (ToA)-based lightning location systems (LLSs) resulting from propagation over mountainous terrain. For the analysis, we have considered the region around the Säntis Tower, located in the Swiss Alps. The study is based on a full-wave finite-difference time-domain (FDTD) approach and the two-dimensional (2D) topographic maps along th...

Physical modelling is a sophisticated synthesis technique, often used in the design of Digital Musical Instruments (DMIs). Some of the most precise physical simulations of sound propagation are based on Finite-Difference TimeDomain (FDTD) methods, which are stable, highly parameterizable but characterized by an extremely heavy computational load. This drawback hinders the spread of FDTD from th...

A theoretical study to design a conformal microstrip antennas was introduced in this work. Conformal define which can be conformed certain shape or any curved surface. It is used high-speed trains, aircraft, defense and navigation systems, landing gear various communications as well body wearable. have some advantages such wider-angle coverage compared flat low radar cross-sectional (RCS) they ...

Using the three-order symplectic integrators and fourth-order collocated spatial differences, a highorder symplectic finite-difference time-domain (SFDTD) scheme is proposed to solve the time-dependent Schrödinger equation. First, the high-order symplectic framework for discretizing a Schrödinger equation is described. Then the numerical stability and dispersion analyses are provided for the FD...

Using the three-order symplectic integrators and fourth-order collocated spatial differences, a high-order symplectic finite-difference time-domain (SFDTD) scheme is proposed to solve the time-dependent Schrödinger equation. First, the high-order symplectic framework for discretizing Schrödinger equation is described. Then the numerical stability and dispersion analyses are provided for the FDT...

Hollowed-out gold-nanosheets (HoGNSs) are one of the special two-dimensional single-crystals on which their bodies (the body HoGNS, abbreviated as NS-body) contain or more hollow defects. There many shape combinations outside NS-body and inside hollow-cavity [e.g., Triangle–Triangle (T–T), Hexagon–Triangle (H–T), etc.]. HoGNSs, especially large-scaled ones, were found to have potential applicat...

In the present study, vibration of cylindrical laminates with different layers and angles were studied. In order to actuate and polarize in radial direction, a piezoelectric layer was located at outer surface of composite shell. Laminates were assumed long enough so that plane strain state analysis in 2D can be used properly. In order to satisfy the boundary conditions, variables in terms of Fo...

In this contribution we first briefly introduce a new Reduced Order Modelling (ROM) algorithm based on the decomposition of the system transfer matrix into orthogonal scaled Laguerre functions. This new technique overcomes the difficulty of unstabilities at low frequencies often experienced with other ROM techniques. Next, we propose a new approach to automatically derive subcell models for 2D ...