Effectiveness Versus Efficacy

We use the genetic algorithm (gatool) to determine the four parameters of the implicit Forst-Kalkwarf-Thodos Model. Predictions are in perfect agreement with data of vapour pressure of iodobenzene versus temperature for a temperature range from 380.15 K to 580.15 K.

The program determines the constants Rmax and Km of the Michaelis-Menten model using data given in Fundamentals of Chemical Reaction Engineering by M. E. Davis & R. J. Davis, McGraw Hill, 2003. This data represents the substrate (catechol) concentration versus time. This data was obtained using...

The Oregonator model accurately describes the Belousov-Zhabotinsky (BZ) reaction. BZ reaction is an example of oscillating chemical reactions. The simulink file oregonator.mdl solves this classical problem. The values of the parameters used in the simulation give a limit cycle when we plot...


Platforms: Matlab

The code uses the SRK EOS written for a single component to plot isotherms, compute gas and liquid molar volumes and to plot vapor pressure versus temperature for ethane.Please visit these links for a paper by Z. Nasri and H. Binous where all equations are given as well as the same calculations...


Platforms: Matlab

This function solves the linear fractional-order differential equations (FODE) with constant coefficients. The short memory principle has not neen used here, so the length of input signal is limited to few hundred samples. The parameters of the FODE (in its standard form) are the inputs of this...


Platforms: Matlab

we can apply either a initial velocity, initial displacement or both. I incuded damping. first plot shows the vibration of a SDOF system. second plot is time versus displacement. Third plot is time velocty and fourth plot is displacement versus velocity.


Platforms: Matlab

I need to thank Duane Hanselman for suggesting this great idea.Fminspleas is a simple nonlinear least squares tool that fits regression models of the formY = a1*f1(X,C) + a2*f2(X,C) + ... + an*fn(X,C)X can be any array, so it works on multidimensionalproblems, and C is the set of only...


Platforms: Matlab

We use the genetic algorithm (gatool) to determine the three parameters of the simple Antoine equation and the six parameters of the Modified Antoine Model. Predictions are in perfect agreement with experimental data of vapor pressure of ethanol versus temperature for a temperature range from...


Platforms: Matlab

The velocity and shear stress versus radial position are determined for laminar flow of a Carreau fluid in a pipe. The shooting method is used to verify the no-slip boundary condition at the piped-deOaos wall. Once the velocity at the center is determined, the governing Differential Algebraic...


Platforms: Matlab

This is a large set of test functions, which may be used to test the effectiveness of global optimization algorithms. Some are rather easy to optimize (rosenbruck, leon, ...), others next to impossible (crosslegtable, bukin6, ...).All the test-functions are taken from either [1], [2] or [3] (see...


Platforms: Matlab

New users and old of optimization in MATLAB will find useful tips and tricks in this document, as well as examples one can use as templates for their own problems.Use this tool by editing the file optimtips.m, then execute blocks of code in cell mode from the editor, or best, publish the file to...


Platforms: Matlab

The velocity and shear stress versus radial position are obtained for the laminar flow of a power-law fluid in a pipe. Pipe radius and applied pressure gradients can be set by the user. If you choose a power-law exponent, n, equal to 1 then a Newtonian fluid is recovered. Dilatant and...


Platforms: Matlab

The velocity and shear stress versus radial position are determined for laminar flow of a power law fluid in a pipe. The shooting method is used to verify the no-slip boundary condition at the piped-deOaos wall. Once the velocity at the center is determined, the governing equation is solved...


Platforms: Matlab

PID control over the exit raffinate composition (x5) of a five stages column is obtained by changing solvent flow rate (G). The set point is equal to 0.1. The model equations include backmixing effects. This problem is solved using Berkeley-Madonna in Chemical Engineering Dynamics, Ingham et al.,...


Platforms: Matlab

The m-file called routh_sc that means ROUTH stability criterion works which a vector which represent the values of the characteristic coefficients equation of denominator in transfer function of a system.It is small program with an efficacy algorithm respects the steps mentioned in the method and...


Platforms: Matlab

Boundary Control via Modified Smith Predictors for Beam Equation with Delayed Boundary MeasurementSmith predictor and its variants are applied to the boundary control of Euler-Bernoulli beam equation with delayed boundary measurement. The well-known instability problem due to a small time delay...


Platforms: Matlab

This GUI program might be able to calculate the contact size and contact pressure on the contact patch by Hertz theory. The program also calculates normal force versus creepage comparing both Johnson and Vermeulen theory and Kalker's theory. It might be a good tool to visualize contact.


Platforms: Matlab

To run the GUI we need to unzip the content of archive in the current Matlab Directory. Run M-file and chose to display Time Evolution versus Probability Density for fixed year and banc.


Platforms: Matlab

[S,E] = XLS2STRUCT(FILE) reads the Excel-file FILE and converts the columns into separate fields in the structure S. The first line of the file must contain unique headers for all of the columns, the rest of the file is data. Column names can contain spaces, these are converted to underscores in...


Platforms: Matlab

The goal of this case study is to show how MATLAB and various toolboxes can be used together to solve an imaging problem. The specific problem shown here is a science experiment. Given a pendulum, measure gravity. The mathematics are well defined by classical physics. Gravity depends on the...


Platforms: Matlab