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Publications

Search Publications by

Judith E. Terrill (Fed)

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Displaying 1 - 25 of 30

A Critical Comparison of 3D Experiments and Simulations of Tricalcium Silicate Hydration

March 13, 2018
Author(s)
Jeffrey W. Bullard, John G. Hagedorn, Tyler Ley, Qinang Hu, Wesley N. Griffin, Judith E. Terrill
Advances in nano-computed X-ray tomography (nCT), nano X-ray fluorescence spectrometry (nXRF), and high-performance computing have now enabled the first ever direct comparison between observations of three-dimensional nanoscale microstructure evolution

Compressed Volume Rendering using Deep Learning

October 2, 2017
Author(s)
Wesley N. Griffin, Afzal A. Godil, Jeffrey W. Bullard, Judith E. Terrill, Amitabh Varshney, Somay Jain
Scientific simulations often generate large amounts of multivariate time varying volumetric data. Visualizing these volumes is essential for understanding the underlying scientific processes which generate this data. In this paper, we present a method to

Measurement and Modeling Needs for Next-Generation Concrete Binders

July 1, 2017
Author(s)
Jeffrey W. Bullard, Edward J. Garboczi, Paul E. Stutzman, Pan Feng, Alexander S. Brand, John G. Hagedorn, Wesley N. Griffin, Judith E. Terrill
Cementitious binders have become increasingly complex in their variety, mineralogical and chemical compositions, and structure over the past several decades, and there is no sign that the trend will stop or reverse in the future. Strategies for handling

Application Creation for an Immersive Virtual Measurement and Analysis Laboratory

December 22, 2016
Author(s)
Wesley N. Griffin, William L. George, Terence J. Griffin, John G. Hagedorn, Thomas M. Olano, Steven G. Satterfield, James S. Sims, Judith E. Terrill
Content creation for realtime interactive systems is a difficult problem. In game development, content creation pipelines are a major portion of the code base and content creation is a major portion of the budget. In research environments, the choice of

Incorporating D3.js Information Visualization into Immersive Virtual Environments

April 9, 2015
Author(s)
Wesley N. Griffin, Luis D. Catacora, Jeffrey W. Bullard, Judith E. Terrill
We have created an integrated interactive visualization and analysis environment that can be used immersively or on the desktop to study a simulation of microstructure development during hydration or degradation of cement pastes and concrete. Our

Interactive Visual Computing Laboratory Research

March 25, 2015
Author(s)
Jian Chen, Judith E. Terrill, Henan Zhao, Guohao Zhang, Keqin Wu, Alexander Garbrino, Yongnan Zhu
We present three ongoing research projects (funded by NST and NIST) on behalf of the Interactive Visual Computing Lab at the University of Maryland Baltimore County. This lab exhibition presentation summarizes the design challenges we are currently

New Insights into the Prehydration of Cement and Its Mitigation

January 27, 2015
Author(s)
Julyan Stoian, Tandre Oey, Jeffrey W. Bullard, Jian Huang, Aditya Kumar, Magdalena Balonis, Judith E. Terrill, Narayanan Neithalath, Gaurav Sant
Ordinary Portland cement (OPC) prehydrates during storage or handling in moist environments, forming hydration products on or near its particles' surfaces. Prehydration is known to reduce OPC reactivity, but the extent of prehydration has not yet been

A 4D Immersive Platform to Visualize RF Propagation in BAN

January 1, 2015
Author(s)
John G. Hagedorn, Kamran Sayrafian, Judith E. Terrill, Kamya Yekeh Yazdandoost
Recent advances in micro-electronics technology to build small radio-enabled implantable and wearable medical sensors have sparked considerable interest in body area networks. Understanding the characteristics of radio frequency propagation inside and

High Performance Visualization in Science and Research

December 6, 2014
Author(s)
Tomasz P. Bednarz, John Taylor, Tony Huang, Wesley N. Griffin, Steven G. Satterfield, Judith E. Terrill, John G. Hagedorn
This work showcases four examples of scientific visualizations across various domains of research and science that were prepared at CSIRO in Australia, and NIST in the USA: visualization of bone cancer, RF propagation through the human body, touch-less

A Simulation Platform to Study Inter-BAN Interference

December 2, 2013
Author(s)
Kamran Sayrafian, John G. Hagedorn, Martina Barbi, Judith E. Terrill, Mehdi Alasti
A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensor nodes that are located inside or in proximity to the human body. Many applications of BANs (e.g. physiological monitoring) require reliable

A Dynamic Human Body Computational Phantom for RF Propagation Study

May 20, 2013
Author(s)
John G. Hagedorn, Kamran Sayrafian, Judith E. Terrill
Recent advances in micro-electronics technology to build small radio-enabled implantable and wearable medical sensors have sparked considerable interest in further understanding the characteristics of radio frequency propagation inside the human body. As

Virtual Reality Platform to Study RF Propagation in Body Area Networks

December 2, 2012
Author(s)
Kamran Sayrafian, John G. Hagedorn, Wen-Bin Yang, Judith E. Terrill
Design of efficient wireless communication protocols for body area networks requires in-depth understanding of the propagation media i.e. the human body. As obtaining large amount of data for many scenarios and use-cases via physical experiment is either

Advancing the materials science of concrete with supercomputers

January 24, 2011
Author(s)
Jeffrey W. Bullard, Edward Garboczi, William L. George, Nicos Martys, Steven G. Satterfield, Judith E. Terrill
Supercomputers are renowned for being used on grand challenge problems like global weather patterns, nuclear device virtual testing, galaxy formation, unraveling molecular structure - and now concrete! Why do the mysteries of concrete form this kind of a

An Integrated Interactive Visualization and Analysis Environment to study the Impact of Fire on Building Structures

July 25, 2010
Author(s)
Dilip K. Banerjee, John L. Gross, Pradeep R. Gaddam, Thomas M. Olano, William J. Hess, Judith E. Terrill, Terence J. Griffin, John G. Hagedorn, John T. Kelso, Steven G. Satterfield
We have created an integrated interactive visualization and analysis environment, that can be used immersively or on the desktop, to study the interaction among fire, heat transfer, and structural deformation computed from three linked simulations. In this

A Statistical Path Loss Model for Medical Implant Communication Channels

September 16, 2009
Author(s)
Kamran Sayrafian, Wen-Bin Yang, John G. Hagedorn, Judith E. Terrill, Kamya Yazdandoost
Knowledge of the propagation media is a key step toward a successful transceiver design. Such information is typically gathered by conducting physical experiments, measuring and processing the corresponding data to obtain channel characteristics. In case

Virtual Cement and Concrete

September 1, 2009
Author(s)
Jeffrey W. Bullard, Chiara C. Ferraris, Edward Garboczi, Nicos Martys, Paul E. Stutzman, Judith E. Terrill
Design and optimization of cement or concrete mixes typically is accomplished by intensive trial-and-error experimentation, primarily because the design space has many parameters and because interactions between these parameters are incompletely understood

Visualization of Structural Behavior under Fire

August 12, 2009
Author(s)
Dilip K. Banerjee, William J. Hess, Thomas M. Olano, Judith E. Terrill, John L. Gross
An integrated environment was created to study the interaction among fire, heat transfer, and structural deformation from a typical room fire. The fire, thermal, and structural data were linked with a separate 3-D visualization capability, to provide the

Extending Measurement Science to Interactive Visualization Environments

January 30, 2009
Author(s)
Judith E. Terrill, William L. George, Terence J. Griffin, John G. Hagedorn, John T. Kelso, Thomas M. Olano, Adele P. Peskin, Steven G. Satterfield, James S. Sims, Jeffrey W. Bullard, Joy P. Dunkers, Nicos Martys, Agnes A. O'Gallagher, Gillian Haemer
We describe a method for creating a visual laboratory to interactively measure and analyze scientific data. We move the normal activities that scientists perform to understand their data into the visualization environment. The visualization environment is

Methods for Quantifying and Characterizing Errors in Pixel-Based 3D Rendering

July 1, 2008
Author(s)
John G. Hagedorn, Judith E. Terrill, Adele P. Peskin, James J. Filliben
We present methods for measuring errors in the rendering of three-dimensional points, line segments, and polygons in pixel-based computer graphics systems. We present error metrics for each of these three cases. These methods are applied to rendering with

Accelerating Scientific Discovery through Computation and Visualization III. Tight-binding Wave Functions for Quantum Dots

June 2, 2008
Author(s)
James S. Sims, John G. Hagedorn, Steven G. Satterfield, Terence J. Griffin, William L. George, Howard Hung, John T. Kelso, Thomas M. Olano, Adele P. Peskin, Judith E. Terrill, Garnett W. Bryant, Jose G. Diaz
This is the third in a series of articles that describe, through examples, how the Scientific Applications and Visualization Group (SAVG) at NIST has utilized high performance parallel computing, visualization, and machine learning to accelerate scientific

Correction of Location and Orientation Errors in Electromagnetic Motion Tracking

August 1, 2007
Author(s)
John G. Hagedorn, Steven G. Satterfield, John T. Kelso, W. Austin, Judith E. Terrill, Adele Peskin
We describe a method for calibrating an electromagnetic motion tracking device. Algorithms for correcting both location and orientation are presented. In particular, we use a method for interpolating rotation corrections at scattered data points that has