Demonstrations to run with Mathematica® or Mathematica Player®

This page contains links to 37 free demonstrations downloadable from the Wolfram Demonstrations Project web site. Demonstrations contain active controls and unless otherwise noted run in Mathematica 6 (or newer) or the free Mathematica Player application. For more information on Mathematica visit the Wolfram Research web site at: http://www.wolfram.com/.

For more information on the models see: Peleg, M. 2006. Advanced quantitative microbiology for food and biosystems: Models for predicting growth and inactivation. CRC Press, Boca Raton FL. (Click to download a 452K PDF file containing contents description.)

Heat Transfer

Estimating the Thermal Properties of Foods from their Moisture Contents (requires Mathematica or Mathematica Player version 7). [NEW icon]
Heat Transfer in a Heat Exchanger (requires version 7).
Logarithmic Mean Temperature of a Heat Exchanger (requires version 7).
Steady State Heat Transfer Through an Insulated Wall (requires version 7).
Stefan-Boltzmann Law (requires version 7).

Humor

Through Any Three Points. [NEW icon]

Kinetics: Microbial, Chemical and Biochemical

Growth
Generalized Logistic (Verhulst) Isothermal Microbial Growth on Linear and Logarithmic Coordinates.
Modified Logistic Isothermal Microbial Growth Ratio (Linear and Logarithmic) vs. Time.
Ratio-Based Modified Logistic Isothermal Microbial Growth on Linear and Logarithmic Coordinates.

Microbial Inactivation
Equivalent Isothermal Time at a Reference Temperature as a Function of Time.
Log Survival Ratio as a Function of Time.
Simulating Temperature versus Time Relationships in the Thermal Preservation of Foods.
Weibullian Inactivation Rate as a Function of Temperature.
Weibullian Inactivation Rate as a Function of Time.

Mixed Kinetics
Biphasic Exponential Decay And Growth (requires version 7).
DeNovo Growth Processes With Competing Mechanisms (requires version 7).
Incipient Growth Processes With Competing Mechanisms (requires version 7).

Mass Balance, Heat Balance, Pressure Balance and Flow

Flow from a Tank at Constant Height (requires version 7).
Force to Overcome Vacuum Pull (requires version 7). [NEW icon]
Heat Balance in Freezing and Thawing Food (requires version 7). [NEW icon]
Mass Balance in a Single Stage Evaporator (requires version 7).
Mass Balance of Binary Mixtures (requires version 7).
Milk Centrifugation To Cream and Skim (requires version 7).
Refrigeration Cycle Coefficient of Performance (requires version 7). [NEW icon]

Mathematical Functions

Arrhenius Equations for Reaction Rate and Viscosity (requires version 7).
2D and 3D Packard-Takens Autocorrelation Plots of Sinusoidal Functions.
Bimodal Normal Distribution Mixtures.
Five Definitions of Strain for Large Deformations (requires version 7). [NEW icon]
Line Jaggedness Visualization with the Mandelbrot-Weierstrass Function (requires version 7).
Noise Retrieval from Averaged Sequences (requires version 7).
Relaxation of a Maxwell Element (requires version 7).

Particulates

Equilibrium Water Activity of Binary Dry Mixtures (requires version 7).
Principal Stresses in Compacted Cohesive Powders (requires version 7).
Ratio of Surface Area to Volume for a Cube and a Sphere.
Surface Area Increase by Size Reduction.

Risk Assessment

Expanded Fermi Solution For Risk Assessment.
Failure Probabilities from Quality Control Charts (requires version 7).

[Return to ] Prof. Micha Peleg

[Return to ] Mark D. Normand

[Return to ] UMass Department of Food Science

[Return to ] University of Massachusetts at Amherst

Content last updated: November 14, 2009