A finite difference upwind discretization scheme in two dimensions is presented in detail for the transient simulation of the highly coupled non-linear partial differential equations of the full hydrodynamic model, providing thereby a practical engineering tool for improved charge carrier transport simulations at high electric fields and frequencies. The discretization scheme preserves the cons...

In recent years reflectarray antennas have received considerable attention due to their unique capabilities. However, due to their large size, analyzing the performance of these antennas using traditional full wave finite-difference and finite-element techniques requires considerable computational resources. In this paper, we present an efficient method to accurately analyze these class of ante...

Simulation of computer systems is becoming increasingly important in areas such as code optimization, performance evaluation and processor and memory system design. An important trade-off in simulator design is performance vs. abstraction of the model. Simics is a full system simulator, capable of simulating an entire computer system, including the processor, TLB, MMU, memory hierarchy and surr...

This paper describes the successful simulation of a complete transceiver circuit with the new VHDL-AMS standard. The aim was to verify the functionality and connectivity of a complete RF transceiver chip under actual application conditions. The transceiver circuit is dedicated to E-GSM/GPRS standards for mobile phone applications. At such a level of complexity, traditional tools do not allow si...

This paper discusses recent advances in the full spectral simulation of scenes with partial cloud cover. We examine the effect of broken cloud fields on the solar illumination reaching the ground. Application of aerosol retrieval techniques in the vicinity of broken clouds leads to significant over-prediction of aerosol optical depth because of the enhancement of visible illumination due to sca...

In this paper, a full adder cell based on majority function using Carbon-Nanotube Field-Effect Transistor (CNFET) technology is presented. CNFETs possess considerable features that lead to their wide usage in digital circuits design. For the design of the cell input capacitors and inverters are used. These kinds of design method cause a high degree of regularity and simplicity. The proposed des...