Concentration Formula
galculator is a GTK 2 based calculator with ordinary notation/reverse polish notation, a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).galculator features two user modes: basic and scientific mode. Basic mode is intended...
Platforms: *nix, C/C++, BSD
License: Freeware | Download (62): galculator Download |
A replacement for the transfer function normprod.m in the MATLAB NN toolbox. With this transfer function, the NaNs in the simulation of RBF neural networks can be avoided.The function can handly zeros, and positive and negative infinite values in the weight vector. Also combinations of positive...
Platforms: Java
License: Freeware | Size: 10 KB | Download (47): nprod.m version Download |
"It's one of the most used models for signal prediction in urban areas, valid from 150Mhz to 1500MHz, losses are spreading in the urban area as a standard formula and proprciona fixes for applications to other situations"
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): Okumura Hata model Download |
This file contain functions for the calculations of:- Fresnel integral with sine and cosine integral- Fresnel integrals- Diffraction loss over one knife-edge using Fresnel integration end Lee's formula- Ploting the Cornu's spiral
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (53): Basic diffraction models Download |
Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK.Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one)...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (38): Impact of quantization on performance Download |
The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined as : N-1 q-1 ---- -- 1 | | b[i](m)*b[q-1-i](u) W(u) = --- / f(m)| | (-1) ,u = 0,...,N-1 N ---- | | m=0 i=0 where for...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): Walsh Transform(2D) Download |
The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined in mfile
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Walsh Transform(1D) Download |
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...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (49): Nonlinear Fit of Michaelis-Menten model Download |
n the bottom of a Stefan tube there is a quiescent liquid with a mixture of acetone (component 1) and methanol (component 2). Vapor that evaporates from this pool of liquid diffuses to the top of the tube. Air (component 3) keeps the mole fractions of components 1 and 2 equal to zero. This...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (42): Solution of a Maxwell Stefan Diffusion Problem Download |
View factor is a MATLAB function that uses the CDIF (contour double integral formula) to calculates view factors between planar surfaces(polygons), no matter what are the shape and the orientation of the two figures.All you need to enter is the coordinates of the vertices that define the outlines...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): View Factors Download |
"It takes from 10 to 15 years to bring a new drug to market?at a cost rapidly approaching $1 billion. A key contributor to these staggering costs is late-stage failure: Of every 250 compounds that enter preclinical testing, only five proceed into clinical trials, and only one will be approved by...
Platforms: Matlab
License: Freeware | Size: 542.72 KB | Download (44): Screenshot Developing Pharmacokinetic and Pharmacodynamic Models in Simulink Download |
MolMass is a function for calculating the molar weight of a substance given in form of a chemical formula.Function call: MM = MolMass(substance)Substance is a string of the chemical formula of a substance.Example: MM = MolMass('Fe2(SO4)3');Substance can also be a vector of substances opened by...
Platforms: Matlab
License: Freeware | Size: 102.4 KB | Download (46): Molecular Weight Calculator Function Download |
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 diffusion2)...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Permeation timelag in polymer hollow fiber membrane Download |
This file contains a funtion (mfile) and a simulink block. They both give the approximation of the saturation of a function between the values [-1,1]. The main advantage and purpose of designing this simple yet powerful function is to obtain a smooth funtion that has a continous derivative.It can...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): saturation function Download |
Wigner3j( J123, M123) calculates the Wigner 3j-symbol according to Racah formula.The Wigner 3j symbol is useful for multiplication of Spherical Harmonics (and their generalizations) and for addition of angular momentum.The are related to the Clebsch-Gordan coefficients by:Wigner3j( J123, M123 ) =...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): Wigner3j symbol Download |
This m-file gives the atomic weight of any element or molecular weight of any chemical species.Input:species = (cell array)The species is the 'formula'.Output:Atomic weight of any element or molecular weight of any chemicalspecies.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): amolwt Download |
This file includes two m-files. The ASWERS12345 calculates GRS80 free air anomalies,Eigen-CG03C and model of remaining topography reduction,empirical and analytic covariance functions,normal gravity (GRS67,GRS80) using Somigliana formula. The other one fftstokes.m is a geoid computation using...
Platforms: Matlab
License: Freeware | Size: 2.04 MB | Download (39): Intoduction to the gravity field of earth Download |
XLSRANGENAMES Returns a list of named ranges in an excel workbook RangeNames = XLSRangeNames(filename) RangeNames is a (n x 2) cell array with the name of the named range in the first column and the value (aka location) in the second column The value is an excel formula similar to: '=Sheet1!$A$1'...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): Excel Named Ranges Download |
A reaction object contains parameters that describe a chemical reaction scheme in terms of reagents, reaction steps, rate constants and equilibrium constants. The reaction can be evaluated to provide concentrations of species as a function of time and starting concentration. The reaction can also...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (44): Reaction Object Download |
Ranks the content using the IMDB voting algorithm.Provides the "imdb" aggregate function to the Voting API module. Use the name of this function instead of "average" or "count" when creating Views for modules based on Voting API.IMDB-like votes are calculated using the formula W = (Rv + Cm) / (v...
Platforms: PHP
License: Freeware | Size: 10 KB | Download (38): IMDB Voting Download |