Propagation

The bulirsch-Stoer single-step ODE propagator has come to MATLAB in form of a MEX adaptation of Juergen Dietel's Numerical ODE solver. This may very well be the fastest single-step numerical propagator released on the Mathworks FileExchange.All functions are written in c++ and must be compiled to... Platforms: Matlab

How do bacteria find their way to the food ? many biological systems use the chemo-taxis algorithm to improve their conditions and hence, their chance to survive. Chemo-taxis in general refers to movement influenced by chemical properties of the medium. In this model, we have a group of... Platforms: Matlab

This program calculates and plots the photonic bands for a 2D photonic crystal consisting of cylinders with circular cross-section and infinite height, arranged in a triangular lattice; we consider in-plane propagation and two independent polarization states: E-pol and H-pol (E-field and H-field... Platforms: Matlab

The accompanying code is the simulation of a simplified version of a synfire chain in a cortical network, inspired by the ideas of Abeles (1982, 1991), Bienenstock (1995), and Diesmann et al. (1999). In a synfire chain groups, or pools, of neurons are connected in a feedforward arrangement. The... Platforms: Matlab

-Compatible with pre-2010 vers. of Matlab and Neural network toolbox-Trains a perceptron for the spring and one for the damper. -Runs a simulation with forcing function and noise.-If you don't have the toolbox, you can still use my back-propagation. Platforms: Matlab

This toolkit has two main purposes.1. Decomposition and visualization of paraxial beams in Hermite-Gaussian and Laguerre-Gaussian bases. (These functions are located in the subdirectory "transverse.")2. Propagation of such beams through optical systems including two-mirror fabry-perot cavities.... Platforms: Matlab

The routine parses a TLE file and extracts informations from a selected satellite.It then calls the SGP4 propagator, converts the orbit in the ECI reference into Earth Centered Earth Fixed and also into Lat Long Heigth.This subroutine includes an example of the ENVISAT satellite in which the... Platforms: Matlab

The Two Dimensional Schrodinger Equation model simulates the time evolution of a two-dimensional wave packet as it moves towards a slit with an obstacle in it, both with variable widths. By changing three parameters via sliders provided, slit width, obstacle width, and initial position of the... Platforms: Mac

The name YASRT stands for Yet Another Simple RayTracer. YASRT was designed to be a stochastic raytracer. It uses the raytracing algorithm to generate realistic pictures from textual descriptions of three-dimensional scenes. By using Monte Carlo raytracing techniques, YASRT supports features such... Platforms: Mac

Organizing and filtering the spots from your favourite DX Cluster for DXing, Contesting or casual rag-chewing. It supports close to a hundred radios, automatically tuning to the spots you are interested in, swinging your beam around. Alerting you to rare contacts or Band Openings and looking up,... Platforms: Mac

The name YASRT stands for Yet Another Simple RayTracer. YASRT was designed to be a stochastic raytracer. It uses the raytracing algorithm to generate realistic pictures from textual descriptions of three-dimensional scenes. By using Monte Carlo raytracing techniques, YASRT supports features such... Platforms: *nix

The name YASRT stands for Yet Another Simple RayTracer. YASRT was designed to be a stochastic raytracer. It uses the raytracing algorithm to generate realistic pictures from textual descriptions of three-dimensional scenes. By using Monte Carlo raytracing techniques, YASRT supports features such... Platforms: Solaris

PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) system. Boosting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, 802.1X support, layer-2 isolation of problematic devices,... Platforms: *nix

Transparent calculations with uncertainties on the quantities involved (aka "error propagation") ; fast calculation of derivatives uncertainties allows calculations such as (2 ?*A* 0.1)*2 = 4 ?*A* 0.2 to be performed transparently. Much more complex mathematical expressions involving numbers... Platforms: *nix

Scicos-HDL integrates the hardware circuit, algorithm and Scilab/Scicos environment as a plat for digital circuit design, simulation and Hardware Description Language generation. Scicos-HDL shortens digital circuit design cycles by helping you create the hardware representation in an... Platforms: *nix