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  1. Memory-Efficient Particle Annihilation Algorithm for Wigner Monte Carlo Simulations

    10 Feb 2016 | Online Presentations | Contributor(s): Paul Ellinghaus

    IWCE 2015 presentation. The Wigner Monte Carlo solver, using the signed-particle method, is based on the generation and annihilation of numerical particles. The memory demands of the annihilation algorithm can become exorbitant, if a high spatial resolution is used, because the entire...

  2. Wigner Function Approach to Quantum Transport in QCLs

    10 Feb 2016 | Online Presentations | Contributor(s): Olafur Jonasson, Irena Knezevic

    IWCE 2015 presentation.  Abstract and more information to be added at a later date.

  3. Progress on Quantum Transport Simulation Using Empirical Pseudopotentials

    10 Feb 2016 | Online Presentations | Contributor(s): Jingtian Fang, William Gerard Hubert Vandenberghe, Massimo V Fischetti

    IWCE 2015 presentation. After performing one-dimensional simulation of electron transport in narrow quantum wires without gate control in (Fang et al., 2014) and (Fu and Fischetti, 2013) using the open boundary-conditions full-band plane-wave transport formalism derived in (Fu, 2013), we now...

  4. IWCE 2015: Openning Remarks

    10 Feb 2016 | Online Presentations | Contributor(s): Gerhard Klimeck

    IWCE 2015 presentation.  Welcome and opening remarks for the 18th International Workshop on Computational Electronics.

  5. Gerhard Klimeck - Why I love my work

    10 Feb 2016 | Online Presentations | Contributor(s): Gerhard Klimeck

    Scientist and engineer, Gerhard Klimeck, discusses the joy of his work. 

  6. dualfoil.py Demonstration Video: User-Friendly Electrochemical Simulations for Porous Electrodes

    10 Feb 2016 | Online Presentations | Contributor(s): R. Edwin García

    Companion demonstration video for the tool dualfoil.py.

  7. dualfoil.py Tutorial: User-Friendly Electrochemical Simulations for Porous Electrodes

    10 Feb 2016 | Online Presentations | Contributor(s): R. Edwin García

    Tutorial lecture for the tool dualfoil.py.

  8. Engineering Diamond Color Centers for Quantum Information and Sensing

    11 Feb 2016 | Online Presentations | Contributor(s): Philip Hemmer

    For over a decade diamond color centers like the nitrogen-vacancy (NV) have been investigated for applications ranging from quantum storage registers to room temperature quantum computers to quantum enhanced bio-sensors. Recently silicon-vacancy (SiV) centers in diamond have showed potential to...

  9. Range Decomposition: A Low Communication Algorithm for Solving PDEs on Massively Parallel Machines

    07 Feb 2016 | Online Presentations | Contributor(s): Tom Manteuffel

    The Range Decomposition (RD) algorithm uses nested iteration and adaptive mesh refinement locally before performing a global communication step. Only several such steps are observed to be necessary before reaching a solution within a small multiple of discretization error. The target application...

  10. Preconditioning for Divergence-Conforming Discretizations of the Stokes Equations

    07 Feb 2016 | Online Presentations | Contributor(s): Thomas Benson

    Recent years have seen renewed interest in the numerical solution of the Stokes Equations. Of particular interest is the use of inf-sup stable pairs of finite elements for which weak enforcement of the incompressibility condition implies strong enforcement as well, such as with BDMelements....

  11. Non-Blocking Conjugate Gradient Methods for Extreme Scale Computing

    07 Feb 2016 | Online Presentations | Contributor(s): Paul Eller

    Many scientific and engineering applications use Krylov subspace methods to solve large systems of linear equations. For extreme scale parallel computing systems, the dot products in these methods (implemented using allreduce operations in MPI) can limit performance because they are a...

  12. New FOSLS Formulation of Nonlinear Stokes Flow for Glaciers

    07 Feb 2016 | Online Presentations | Contributor(s): Jeffrey Allen

    This talk describes two First-order System Least-squares (FOSLS) formulations of the nonlinear Stokes flow used to model glaciers and ice sheets. The first is a Stress formulation and the second a Stress-Vorticity formulation. Both use fluidity, which is the reciprocal of viscosity and avoid the...

  13. Data-Centric Models for Multilevel Algorithms

    07 Feb 2016 | Online Presentations | Contributor(s): Samuel Guiterrez

    Today, computational scientists must contend with a diverse set of supercomputer architectures that are capable of exposing unprecedented levels of parallelism and complexity. Effectively placing, moving, and operating on data residing in complex distributed memory hierarchies is quickly...

  14. LegoGen

    05 Feb 2016 | Tools | Contributor(s): Scott Michael Louis Slone, Chris Maffeo, AbderRahman N Sobh, Aleksei Aksimentiev

    Tool workflow for building DNA Brick structures automatically.

  15. [Illinois] CNST Nanotechnology Workshop 2015

    04 Feb 2016 | Workshops | Contributor(s): Mustafa El-sayed, Mehmet Toner

    The CNST Nanotechnology Workshop highlights University of Illinois research in bionanotechnology and nanomedicine, nanoelectronics and nanophotonics, and nanomaterials and nanomanufacturing, leading to cross-campus and industry collaborations.

  16. [Illinois] Rare Events with Large-Impact: Bioengineering & Clinical Applications of Circulating Tumor Cells

    04 Feb 2016 | Online Presentations | Contributor(s): Mehmet Toner

  17. Stable Discretizations and Robust Block Preconditioners for Fluid-Structure Interaction Systems

    04 Feb 2016 | Online Presentations | Contributor(s): Kai Yang

    In our work we develop a family of preconditioners for the linear algebraic systems arising from the arbitrary Lagrangian-Eulerian discretization of some fluid-structure interaction models. After the time discretization, we formulate the fluid-structure interaction equations as saddle point...

  18. High Dimensional Uncertainty Quantification via Multilevel Monte Carlo

    04 Feb 2016 | Online Presentations | Contributor(s): Hillary Fairbanks

    Multilevel Monte Carlo (MLMC) has been shown to be a cost effective way to compute moments of desired quantities of interest in stochastic partial differential equations when the uncertainty in the data is high-dimensional. In this talk, we investigate the improved performance of MLMC versus...

  19. Plasmonics and Metasurfaces for Extreme Manipulation of Light

    08 Mar 2016 | Online Presentations | Contributor(s): Yongmin Liu

    In this talk, I will present some of our work in the fascinating field of plasmonics and optical metasurfaces. First, I will discuss reconfigurable plasmonic lenses operating in microfluidic environment, which can dynamically diverge, collimate and focus surface plasmons [5]. Second, I will...

  20. Discretization of Elliptic Differential Equations Using Sparse Grids and Prewavelets

    04 Feb 2016 | Online Presentations | Contributor(s): Christoph Pflaum

    Sparse grids can be used to discretize second order elliptic differential equations on a d-dimensional cube. Using Galerkin discretization, we obtain a linear equation system with  unknowns. The corresponding discretization error is  in the -norm. A major difficulty in...