Online Presentations (81-100 of 126)

1. IMA 2013 UQ: Foam Property Prediction from Process Modeling

   Online Presentations | 28 May 2014

   We are developing computational models to elucidate the injection, expansion, and dynamic filling process for polyurethane foam such as PMDI. The polyurethane is a chemically blown foam, where carbon dioxide is produced via reaction of water, the blowing agent, and isocyanate. In a competing...

2. [Illinois] CSE Seminar Series: Advances in First-principles Computational Materials Science

   Online Presentations | 20 Nov 2012 | Contributor(s):: Elif Ertekin

   Title: Advances in first-principles computational materials science Subtitle: Things we can calculate now, that we couldn't when I was in grad school. The capability to rationally design new materials with tailored properties and functionality on a computer remains a grand challenge whose...

3. Experiments and Models Regarding Strain Dependent Thermal Conductivity and Strength at the Nanoscale and Microscale

   Online Presentations | 22 Sep 2011 | Contributor(s):: Vikas Tomar

   Silicon micro- and nano-structures are essential in today’s integrated circuits and sensors. The functioning and performance of such devices are highly affected by thermal properties. Due to the size effect, the thermal properties of bulk silicon cannot represent those of silicon...

4. CHM 696 Lecture 14: Semiconductor Nanoparticles, Nanorods, and Nanowires: Properties and Applications I

   Online Presentations | 02 Jun 2011 | Contributor(s):: Alexander Wei

5. CHM 696 Lecture 15: Semiconductor Nanoparticles, Nanorods, and Nanowires: Properties and Applications II

   Online Presentations | 02 Jun 2011 | Contributor(s):: Alexander Wei

6. Electronic Characterization of Materials Using Conductive AFM

   Online Presentations | 03 May 2011 | Contributor(s):: Amir Moshar

7. AFM Metrology of Cellulose Nanocrystals

   Online Presentations | 03 May 2011 | Contributor(s):: Robert J. Moon, Ryan Wagner

   This talk discusses the characterization of cellulose nanocrystals via atomic force microscopy.

8. Levitated Spinning Graphene

   Online Presentations | 18 Jan 2011 | Contributor(s):: Bruce E. Kane

   I will describe a method for levitating micron-sized few layer graphene flakes in a quadrupole ion trap. Starting from a liquid suspension containing graphene, charged flakes are injected into the trap using the electrospray ionization technique and are probed optically.

9. ME 597 Lecture 12: Experimental Uncertainties in Extracting Material Properties from F-Z Curves

   Online Presentations | 29 Oct 2010 | Contributor(s):: Ryan Wagner, Arvind Raman

   Guest lecturer: Ryan Wagner.

10. Electric and Magnetic Properties of Multiferroic Oxide Thin Films and Heterostructures

    Online Presentations | 20 Oct 2010 | Contributor(s):: Pedro Antonio Prieto

    Outline:IntroductionPreparation methods for oxide thin filmsOxide thin films and heterostructures Multiferroic materialsBiFeO3, YMnO3, BiMnO3 thin films and FE/FM CompositesConclusions

11. TiCN/TiNbCN Multilayer System with Enhanced Tribological Properties

    Online Presentations | 20 Oct 2010 | Contributor(s):: Pedro Antonio Prieto

    Improvement in the mechanical properties of hard coatings such monolayer (TiN, CrN, AlCN, WC-Co, TiCN) [1], has been achieved using compositional gradient WC/C layer, or multilayered type [transition metal/transition carbide]n, [transition metal/transition nitride]n, [TiCN/ZrCN]n, among others....

12. Superficial Science – Polymer Surface Science at Purdue

    Online Presentations | 26 Aug 2010 | Contributor(s):: Jeffery Youngblood

    In this presentation, Professor Youngblood describes his current research projects and the theme that ties them together - surface science.

13. Self-Consistent Geometry, Density and Stiffness of Carbon Nanotubes

    Online Presentations | 05 May 2010 | Contributor(s):: R. Byron Pipes

    A self-consistent set of relationships is developed for the physical properties of single walled carbon nanotubes (SWCN) and their hexagonal arrays as a function of the chiral vector integer pair, (n,m). Properties include effective radius, density, principal Young’s modulus, and specific Young’s...

14. Illinois ME 498 Introduction of Nano Science and Technology, Lecture 18: Enabling tools for Characterization of Nanoscale Materials

    Online Presentations | 17 Nov 2009 | Contributor(s):: Nick Fang, Omar N Sobh

    Enabling tools for nanoscale materialsTopics: Vapor - Liquid - Solid Nanowire Growth Anodizing Alumina as Template Sensing with Nanowires Imagning with Energy Beams Scanning electron Microscopy (SEM) Electron Sources Field Emission Principle Limitations of the Beam Size Liquid Metal Ion Source...

15. Nanotribology, Nanomechanics and Materials Characterization Studies

    Online Presentations | 08 Jun 2009 | Contributor(s):: Bharat Bhushan

    Fundamental nanotribological studies provide insight to molecular origins of interfacial phenomena including adhesion, friction, wear and lubrication. Friction and wear of lightly loaded micro/nano components are highly dependent on the surface interactions (few atomic layers). Nanotribological...

16. Illinois CEE 595 - Structural Engineering Seminar Series Lecture 1

    Online Presentations | 07 Jun 2009 | Contributor(s):: Paramita Mondal

    This is the first lecture from the Fall 2008 Structural Engineering Seminar Series (CEE 595). The presenter is Assistant Professor Paramita Mondal. In this lecture, she discusses her work in the testing of concrete on the nano-scale. The overall goal of this work is to quantify the relationships...

17. Illinois PHYS 466, Lecture 13: Brownian Dynamics

    Online Presentations | 08 Apr 2009 | Contributor(s):: David M. Ceperley

    Brownian DynamicsLet’s explore the connection between Brownian motion and Metropolis Monte Carlo. Why? Connection with smart MC Introduce the idea of kinetic Monte Carlo Get rid of solvent degrees of freedom and have much longer time steps.Content: Local Markov process General Form of Evolution...

18. Illinois PHYS 466, Lecture 12: Random Walks

    Online Presentations | 30 Mar 2009 | Contributor(s):: David M. Ceperley

    Random WalksToday we will discuss Markov chains (random walks), detailed balance and transition rules. These methods were introduced by Metropolis et al. in 1953 who applied it to a hard sphere liquid. It is one of the most powerful and used algorithmsContent: Equation of State Calculations by...

19. Illinois PHYS 466, Lecture 11: Importance Sampling

    Online Presentations | 20 Mar 2009 | Contributor(s):: David M. Ceperley

    Importance samplingToday We will talk about the third option: Importance sampling and correlated samplingContent: Importance Sampling Finding Optimal p*(x) for Sampling Example of importance sampling What are allowed values of a? What does infinite variance look like? General Approach to...

20. Illinois PHYS 466, Lecture 10: Sampling

    Online Presentations | 20 Mar 2009 | Contributor(s):: David M. Ceperley, Omar N Sobh

    Fundamentals of Monte CarloWhat is Monte Carlo? Named at Los Alamos in 1940’s after the casino. Any method which uses (pseudo)random numbers> as an essential part of the algorithm. Stochastic - not deterministic! A method for doing highly dimensional integrals by sampling the...