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  1. Discussion on Hamaker Constant

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    09 May 2008 | Publications | Contributor(s): Stephen Beaudoin, Ravi Jaiswal, Caitlin Kilroy

    The Hamaker constant is a force constant used for describing the van der Waals (vdW) force. The magnitude of the Hamaker constant reflects the strength of the vdW force between two particles, or between a particle and a substrate. It depends on the material properties of both the interacting...

  2. Introduction to Model Building

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    08 May 2008 | Online Presentations | Contributor(s): Gary Blau

    Course Background:Initial ideas developed for Pharmaceutical Scientists at the Dow Chemical Plant in Brindisi, Italy (1975)Subsequently evolved into a global course on Process Optimization presented to Dow Scientists and engineers in Europe and North America.Morphed into two courses in the...

  3. Problems for Statistical Model Building

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    Scenarios, problem statements, JMP data files, and solutions for the course on Statistical Model Building and Design of Experiments. Scenario 1 is based on a batch reactor system for small molecule API production. Scenario 2 is based on a test-bed to study the feasibility of continuous operation...

  4. Response Surface Methodology

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    This lecture describes response surface models:Models are simple polynomialsInclude terms for interaction and curvatureCoefficients are usually established by regression analysis with a computer programInsignificant terms are discarded

  5. Screening

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    The objectives of this lecture are to:Show how to screen or select the most important main effects with fewer experiments.Show how to construct fractional factorial experiments by sacrificing interactionsUnderstand the concept of confounding / aliasesLearn how to write the mathematical model for...

  6. Factorial Experimentation

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    A full factorial experiment is a set of experimental runs such that all levels of a given factor are combined with all levels of every other factor.

  7. Single Factor Experiments

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    The purpose of single factor experiments is to:Quantify relationship between a single factor and a single measured or response variableCompare the relative effectiveness of two or more treatments (levels of the factor).Estimate the level of the factor that optimizes the response variable

  8. Review of Statistics

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    This lecture covers the following topicsDifference between statistics and probabilityStatistical InferenceSamples and populationsIntro to JMP software packageCentral limit theoremConfidence intervalsHypothesis testingRegression and modeling fundamentalsIntroduction to Model BuildingSimple linear...

  9. Probability Theory Review

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    05 May 2008 | Teaching Materials | Contributor(s): Gary Blau

    For any real system or phenomenon, there will be a certain amount of variability associated with data generated by the system.Probability is the language used to characterize and interpret the variability of this data.Probability is the most widely used formalism for quantifying uncertainty.

  10. Statistical Model Building and Design of Experiments

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    05 May 2008 | Courses | Contributor(s): Gary Blau

    Topics covered in this module includeQuantification of Uncertainty in Experimental data and impact on model analysis using Probability TheoryReview of Statistics for building Statistical Models (Multilinear Regression analysis)Design of Experiments for Building Statistical models Single factor...

  11. Dynamic Roller Compactor

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    02 Jan 2008 | Tools | Contributor(s): shsu, Kamal Kuriyan

    Dynamic simulation of roller compaction for dry granulation

  12. Basic Forces in Particle Adhesion

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    28 Jan 2008 | Online Presentations | Contributor(s): Stephen Beaudoin

    Particle adhesion to surfaces is important in a wide range of industrial applications. This brief presentation is designed to provide an introduction to the forces that influence particle adhesion in air or liquid environments. It is not designed to provide information at great depth or...

  13. Video Lecture 06: Introduction to Soft-Particle DEM and Normal Contact Force Models - Part I

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    28 Jan 2008 | Animations | Contributor(s): Carl Wassgren, Avik Sarkar

    Video Lecture 06: Introduction to Soft-Particle DEM and Normal Contact Force Models - Part ICarl R. WassgrenParticulate Systems Laboratory (PSL), Purdue University

  14. PSL DEM Lecture 13: 3D Rotations

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 13: 3D Rotations.

  15. PSL DEM Lecture 07: Normal Contact Force Models - Part II

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 07: Normal Contact Force Models - Part II.

  16. PSL DEM Lecture 06: Introduction to Soft-Particle DEM and Normal Contact Force Models - Part I

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 06: Introduction to Soft-Particle DEM and Normal Contact Force Models - Part I.

  17. PSL DEM Lecture 02: Hard Particle Collision Modeling

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 02: Hard Particle Collision Modeling

  18. PSL DEM Lecture 03: Hard Particle Contact Detection

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 03: Hard Particle Contact Detection.

  19. PSL DEM Lecture 01: Motivation

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    26 Jan 2008 | Teaching Materials | Contributor(s): Carl Wassgren, Avik Sarkar

    The Particulate Systems Laboratory at Purdue University presents the Discrete Element Modeling (DEM) Short Course Series. This is Lecture 01: Motivation.

  20. Discrete Element Method (DEM) Course Module

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    26 Jan 2008 | Courses | Contributor(s): Carl Wassgren, Avik Sarkar

    The DEM course module was created by Carl Wassgren of the Particulate Systems Laboratory (PSL) at Purdue University. The series consists of slides and videos that will familiarize you with the basics of DEM. Discrete Element Method has been applied to analyze and predict flow behaviour in a wide...