Software Listing: Diffusion
- GPU Perona - Malik Anisotropic Diffusion
- License: Shareware

GPU version of the anisostropic diffusion filter by Perona and Malik, created using mex and CUDA. It's my first attempt to write a GPU-enabled program. Any suggestion will be appreciated..
- Publisher: Roberto Gallea
- Date: 05-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Closed Form Option Pricer for Jump Diffusion Processes
- License: Freeware
- Price: 0.00

Closed Form Option Pricer for Jump Diffusion Processes.
- Publisher: Nils Delava
- Date: 09-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Diffusion Distance
- License: Shareware

DIFFUSION_DISTANCE calculate the diffusion distance between matrices dist = diffusion_distance(im1, im2, [sig, dim], threshold, pad_type]) [dist, iter] = diffusion_distance(im1, im2) compute the diffusion distance between im1 and im2 (histograms). Optionally returns the number of iterations. This number will be limited by the size of the histograms, and the threshold value, which can be set manually, or will take the value 1e-4. The padding method used by the filtering stages can be set using the 4th argument, and defaults to circular. For available options, see help imfilter. Reference: Diffusion Distance for Histogram Comparison Ling and Okada, Proc.
- Publisher: Matthew Foster
- Date: 18-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Diffusion Theme
- License: Shareware

Diffusion Theme is a pack that contains 13 high resolution colorful backgrounds for your desktop.
Just download Diffusion Theme to view how diffusion creates mysterious and beautiful abstract designs.
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- Publisher: Microsoft
- Date:
- Platform: Win7 x64, Windows 7
- Diffusion of Innovations Software
- License: Shareware
- Price: 0.00

Diffusion of Innovations Software: Organizational Design, Organisation Design, Strategy, Model, Framework, Management (Strategic Analysis, Management).
- Publisher: sqakki.com
- Date:
- Size: 1638 KB
- Platform: Win2000, Windows Server, WinOther, WinVista
- Convective Adsorption - Desorption
- License: Shareware
- Price: 50.00

Convective Adsorption - Desorption software is used to study water diffusion processes with known experimental data, for the following geometries: infinite slab, infinite cylinder, sphere, finite cylinder and parallelepiped. The software makes possible the determination of the diffusivity 'D' and the convective mass transfer coefficient 'h' through optimization.
Keywords: adsorption, soaking, desorption, drying, kinetics, diffusion, diffusivity, Biot's number, convective mass transfer coefficient, thin layer, partial differential equation, infinite slab, infinite cylinder, sphere, finite cylinder, parallelepiped, transport phenomena, water diffusion, optimization, curve fitting, boundary condition of the third kind, Cauchy.
- Publisher: Wilton Pereira da Silva
- Date: 07-02-2011
- Size: 667 KB
- Platform: Win2000, Windows Server, Windows Vista, WinOther, WinVista
- Five Cellular Automata
- License: Shareware
- Price: 15.00

A cellular automaton consists of:
(a) A structure of cells, such as the squares on a chess board.
(b) A set of values or 'states' such that each cell is associated with a particular state.
(c) A set of rules describing how one state of the system (a particular configuration of cells in specific states) is to be transformed or converted to another state of the system.
This is software for exploring five cellular automata, as follows:
1. An extended version of Conway's Life, called q-state Life.
2. A simulation of the Belousov-Zhabotinsky chemical reaction in which, beginning from a random state of the system, spirals and curlicues 'spontaneously' emerge.
- Publisher: Hermetic Systems
- Date: 24-06-2011
- Size: 1893 KB
- Platform: Win2000, Windows Server, WinOther
- Molecular Structure of the Substance
- License: Shareware
- Price: 9.25

This is an educational program for the field of physics
and chemistry, supported by simulations.
This program is a type of graphic simulation, which is the most
important element for educational purposes.
The program consists of nine sequences (substance classification,
molecule motion, Diffusion, Brown's motion, temperature and pressure,
ideal gas, real gas, crystal structures, etc.).
During every simulation, the capability exists to continuously change
certain parameters (temperature, volume, etc.)..
- Publisher: EduIQ.com
- Date: 02-04-2011
- Size: 561 KB
- Platform: Win2000, WinOther
- Fusion Field x64
- License: Shareware
- Price: 50.00

Fusion Field is a smooth diffusion reverb that sits beautifully in a mix. A clean, unobtrusive sound with a natural falloff that floats and complements the source material perfectly. Designed to imitate complex, natural spaces, it is also very easy to use. The main 'cloud' display represents the reverb in terms of time and frequency, showing all the main parameters and EQ in a natural way. The reverberation can be dampened in the upper and lower frequencies, allowing soft sibilance and a graceful, lifting air to the sound. Having very few controls does not hinder Fusion Field's usefulness. The dial ranges have been sloped to give the best sensitivity in useful regions, and the whole unit can create short snappy rooms, or vast time-suspended spaces, and anything in between.
- Publisher: Quikquak
- Date: 13-11-2012
- Size: 696 KB
- Platform: WinOther
- Fusion Field
- License: Shareware
- Price: 50.00

Fusion Field is a smooth diffusion reverb that sits beautifully in a mix. A clean, unobtrusive sound with a natural falloff that floats and complements the source material perfectly. Designed to imitate complex, natural spaces, it is also very easy to use. The main 'cloud' display represents the reverb in terms of time and frequency, showing all the main parameters and EQ in a natural way. The reverberation can be dampened in the upper and lower frequencies, allowing soft sibilance and a graceful, lifting air to the sound. Having very few controls does not hinder Fusion Field's usefulness. The dial ranges have been sloped to give the best sensitivity in useful regions, and the whole unit can create short snappy rooms, or vast time-suspended spaces, and anything in between.
- Publisher: Quikquak
- Date: 21-08-2012
- Size: 696 KB
- Platform: WinOther
- Diffusion of Innovation Simulation
- License: Freeware
- Price: 0.00

Diffusion of Innovations Simulation.
- Publisher: diffusionsim.sourceforge.net
- Date: 16-05-2012
- Size: 381 KB
- Platform: Linux
- fluid diffusion simulator
- License: Freeware
- Price: 0.00

fick is fluid diffusion simulator (for both liquids and gases): it uses the Flick diffusion laws to drive the evolution of a cellular automata..
- Publisher: fick.sourceforge.net
- Date: 24-09-2012
- Size: 350 KB
- Platform: Linux, Unix
- Matlab code for my Graduate Thesis
- License: Freeware
- Price: 0.00

The samples of code included numerically solve the diffusion equation as it arises in medical imaging. This process is done with multiple solution methods, various boundary conditions, and in multiple dimensions..
- Publisher: Troy
- Date: 19-05-2013
- Size: 113 KB
- Platform: Matlab, Scripts
- Spiral waves in monodomain reaction-diffusion model
- License: Freeware
- Price: 0.00

Matlab implementation of a monodomain reaction-diffusion model in 2-D. The model equations are a variant of the Fitzhugh-Nagumo equations modified to simulate the cardiac action potential. The progression of the two normalized state variables, membrane voltage (v) and recovery (r), is computed across a 128 x 128 spatial domain and across time. This function simulates spiral waves, which are hypothesized to underlie reentrant tachycardia. The spiral waves can be initiated by two different cardiac pacing methods: (1) two-point stimulation where a point stimulus is delivered in the center of the domain followed by another point stimulus on the partially refractory wake of the first wave of excitation.
- Publisher: Peter Hammer
- Date: 25-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Diffusion-induced instability in a coupled reactor system
- License: Freeware
- Price: 0.00

Membrane diffusion in a coupled reactor system can cause complex behaviour such as oscillations, period doubling and chaos. Here we study a simple model suggested by Deng-Harrison in 1969. The bifurcation diagram is obtained. We find good agreement with Figure 10 page 76 of the paper by Lengyel and Epstein. Reference: I. Lengyel and I. R. Epstein, Diffusion-induced instability in chemically reacting systems: Steady-state multiplicity, oscillation, and chaos, Chaos 1 (1) 69-76, 1991..
- Publisher: Housam Binous
- Date: 09-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Permeation timelag in polymer hollow fiber membrane
- License: Freeware
- Price: 0.00

The purpose of this program is to simulate the permeation time lag in a polymer hollow fiber membrane with a dual mode sorption isotherm and the partially immobilized diffusion model. The program plot the 3D time lag with two models: 1) concentration gradient as the driving force for diffusion 2) chemical potential gradient as the driving force for diffusion. The error estimation between the hollow fiber and slab membrane was also provided. The plot is in 3D mesh against upstream pressure and curvature ratio..
- Publisher: k wang
- Date: 17-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Discrete Time Option Pricer for Jump Diffusion Processes
- License: Freeware
- Price: 0.00

To calculate the price the pricer builds a multinomial tree, as described in Amin 1993. For description of the methodology please see; 1. The HTML instructuions in the zip 2. Kaushik I. Amin, 'Jump Diffusion Option Valuation in Discrete Time,' Journal of Finance 48, no. 5 (December 1993): 1833-1863..
- Publisher: Nils Delava
- Date: 19-06-2013
- Size: 61 KB
- Platform: Matlab, Scripts
- fanDTasia ToolBox
- License: Shareware

A Matlab library for Diffusion Weighted MRI (DW-MRI) Processing, Diffusion Tensor (DTI) Estimation, Diffusion Kurtosis (DKI) Estimation, Higher-order Diffusion Tensor Analysis, Tensor ODF estimation, Visualization and more..
- Publisher: Angelos Barmpoutis
- Date: 27-04-2013
- Size: 195 KB
- Platform: Matlab, Scripts
- Image filtering
- License: Freeware
- Price: 0.00

A new formulation for a well-known nonlinear complex diffusion filter is herewith proposed. A regularization factor is made to be dependent on data, and the process itself is an adaptive one..
- Publisher: CNTM
- Date: 17-04-2013
- Size: 113 KB
- Platform: Matlab, Scripts
- Log-Uniform Jump-Diffusion Model
- License: Freeware
- Price: 0.00

JDprice.m : Compute European call option price using a Log-Uniform Jump-Diffusion model. Algorithm used: Monte Carlo with antithetic and control variates techniques. JDimpv : Compute the implied volatilities from the market values of European calls using a Log-Uniform Jump-Diffusion model. (the input "value" may be a matrix) BS.m: Compute European call option price using the Black-Scholes model (used in JDprice) Acknowledgements: Thanks to Zongwu Zhu and Floyd B. Hanson for their paper "A Monte-Carlo Option-Pricing Algorithm for Log-Uniform"..
- Publisher: Rodolphe Sitter
- Date: 21-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts











