Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Conferences

VISION EXPERIMENT ON ACCEPTABLE AND PREFERRED WHITE LIGHT CHROMATICITY FOR LIGHTING

April 23, 2014

Author(s)

Yoshihiro Ohno, Mira Fein

Standards on white light chromaticity of fluorescent lamps are available for more than three decades, but the specifications in these standards have not been...

Evaluation of the effect of donor variability on stem cell response to biomaterials

April 19, 2014

Author(s)

Stephen J. Florczyk, Bryan A. Baker, Sumona Sarkar, Jennifer H. McDaniel, Patrick S. Pine, Marc L. Salit, Carl G. Simon Jr.

Previous research from our group indicated that nanofiber scaffolds promoted osteogenic differentiation of human bone marrow stromal cells (hBMSC) and similar...

Machine Learning Analysis for Identification of Cell Shape Metrics Associated with Stem Cell Differentiation in Nanofiber Scaffolds

April 19, 2014

Author(s)

Desu Chen, Sumona Sarkar, Stephen J. Florczyk, Subhadip Bodhak, Carl G. Simon Jr., Joy P. Dunkers, Julian Candia, Wolfgang Losert

Cell shape has been demonstrated to be closely related to cell function and may be an important predictor of cell fate. Many metrics are available to describe...

Measuring Organelle Shape in 3D in Stem Cells Cultured on Nanofiber Scaffolds

April 19, 2014

Author(s)

Carl G. Simon Jr., Peter Bajcsy, Wojtek J. Tutak, Jyotsnendu J. Giri

Previous work has demonstrated that culture of osteoprogenitor cells on nanofiber scaffolds can potentiate osteogenic differentiation [1-4]. Culture of cells in...

Combinatorial Cassette for Screening of Osteogenesis by Transplanted Human Bone Marrow Stromal Cells

April 19, 2014

Author(s)

Subhadip Bodhak, Sheng Lin-Gibson, Carl G. Simon Jr., Luis Fernandez de Castro Diaz, Pamela G. Robey, Sergei A. Kuznetsov, Tina Kilts, Marian F. Young

The use of in vivo transplantation assays under defined experimental conditions has become a valuable standard for evaluating osteogenic potential of different...

Roles of Nanofiber Structure and Chemistry in Directing Stem Cell Morphology, Differentiation and Gene Expression

April 19, 2014

Author(s)

Sumona Sarkar, Bryan A. Baker, Desu Chen, Wolfgang Losert, Carl G. Simon Jr., Joy P. Dunkers

Nanofiber technology has emerged as a promising tool to recapitulate the native extracellular matrix (ECM) environment for tissue engineering and regenerative...

Efficient Field Coverage in Mobile Sensor Networks: A CPS Perspective

April 17, 2014

Author(s)

Kamran Sayrafian, Hamid Mahboubi, Amir G. Aghdam

Mobile sensor networks (MSN) are an excellent example of Cyber-Physical Systems where motion capability of the network nodes offers an opportunity to co-design...

Metals-Based Additive Manufacturing: Metrology Needs and Standardization Efforts

April 16, 2014

Author(s)

John A. Slotwinski, Shawn P. Moylan

In recent years additive manufacturing (AM) has received significant visibility, both in the popular media as well as in scientific journals, and niche...

Powder Bed Fusion Machine Performance Testing

April 16, 2014

Author(s)

Shawn P. Moylan, Joseph Drescher, M A. Donmez

Unlike conventional machining where there is a near 1:1 correspondence of machine performance to the geometry of the workpiece, the accuracy of the machine...

Assessment of Guidelines for Conducting Round Robin Studies in Additive Manufacturing

April 16, 2014

Author(s)

Shawn P. Moylan, John A. Slotwinski

The uniqueness of AM makes it necessary to develop specific guidance on conducting round robin studies. The existing standards on round robin studies for...

Antimicrobial Agent Evaluation Using Planktonic, Biofilm-Forming and Biofilm Cell States

April 16, 2014

Author(s)

Daneli Lopez-Perez, Nancy J. Lin, Sheng Lin-Gibson

Biofilms have been implicated in 80 % of all chronic human infections1, yet little attention has been focused on studies of antimicrobial agent efficacy in...

Study of Accuracy of Parts Produced Using Additive Manufacturing

April 16, 2014

Author(s)

Marcin Bauza, Shawn P. Moylan, Robert Panas, Stephen Burke, Harry Martz, John S. Taylor, Paul Alexander, Richard Knebel

The purpose of this presentation is to focus discussion onto the issue of accuracy and uncertainty of parts made with additive manufacturing processes.

Hydrogen Field Test Standard: Laboratory Performance

April 14, 2014

Author(s)

Jodie G. Pope, John D. Wright

NIST developed a prototype field test standard (FTS) that incorporates three test methods that could be used by state weights and measures inspectors to...

Optimizing Hybrid Metrology through a Consistent Multi-Tool Parameter Set and Uncertainty Model

April 14, 2014

Author(s)

Richard M. Silver, Bryan Barnes, Nien F. Zhang, Hui Zhou, Andras Vladar, John S. Villarrubia, Regis J. Kline, Daniel Sunday, Alok Vaid

There has been significant interest in hybrid metrology as a novel method for reducing overall measurement uncertainty and optimizing measurement throughput...

Terahertz Active and Passive Imaging

April 11, 2014

Author(s)

Erich N. Grossman, Joshua A. Gordon, David R. Novotny, Richard A. Chamberlin

We describe the results of bistatic scattering measurements covering 325-650 GHz on a series of wellcharacterized random rough test surfaces. These have...

INTERNATIONAL COMPARISON OF KU-BAND STANDARD GAIN HORN CHARACTERIZATION

April 11, 2014

Author(s)

Jeffrey R. Guerrieri, David R. Novotny, Michael H. Francis, Jason B. Coder, Joshua A. Gordon

International comparison of antenna measurement results between national measurement laboratories supports interoperability of communication equipment in today...

10 nm Three-Dimensional CD-SEM Metrology

April 10, 2014

Author(s)

Andras Vladar, John S. Villarrubia, Bin Ming, Regis J. Kline, Jasmeet Chawla, Scott List, Michael T. Postek

The shape and dimensions of a challenging pattern have been measured using a model-based library scanning electron microscope (MBL SEM) technique. The sample...

A Quantitative Study of Nanoparticle Release from Nanocoatings Exposed to UV Radiation

April 7, 2014

Author(s)

Li Piin Sung, Deborah S. Jacobs, Justin M. Gorham, Savelas A. Rabb, Xiaohong Gu, Lee L. Yu, Tinh Nguyen

Nanoparticles are increasingly used in polymer coatings (i.e., nanocoatings) to improve multiple properties of traditional coatings such as mechanical...

International Comparison of Ku-band Standard Gain Horn Characterization

April 6, 2014

Author(s)

Jeffrey R. Guerrieri

International comparison of antenna measurement results between national measurement laboratories supports interoperability of communication equipment in today...

International Comparison of Ku-band Standard Gain Horn Characterization

April 5, 2014

Author(s)

Jeffrey R. Guerrieri

International comparison of antenna measurement results between national measurement laboratories supports interoperability of communication equipment in today...

An Empirical Comparison of Combinatorial and Random Testing

April 4, 2014

Author(s)

Raghu N. Kacker, David R. Kuhn

Some conflicting results have been reported on the comparison between t-way combinatorial testing and random testing. In this paper, we report a new study that...

The Performance of Essential Facilities in Superstorm Sandy

April 4, 2014

Author(s)

Therese P. McAllister

Superstorm Sandy affected the functionality of a number of essential buildings and facilities in the flooded areas of New York and New Jersey. The flood...

Calibrated Oscilloscope Measurements for System-Level Characterization of Weakly Nonlinear Sources

April 4, 2014

Author(s)

Catherine A. Remley, Dylan F. Williams, Paul D. Hale, Chih-Ming Wang, Jeffrey A. Jargon, Youngcheol Park

We present a technique to characterize and correct for linear and weakly nonlinear distortion introduced by the nonideal response of a wideband, high-frequency...

Robustness Assessment of RC Frame Buildings under Column Loss Scenarios

April 3, 2014

Author(s)

Yihai Bao, Joseph A. Main, Hai S. Lew, Fahim Sadek

A computational assessment of the robustness of reinforced concrete (RC) building structures under column loss scenarios is presented. A reduced-order modeling...

Evaluating Building Ventilation Strategies Using Newly-Developed TRNSYS/CONTAM Simulation Capabilities

April 3, 2014

Author(s)

William S. Dols, Steven J. Emmerich, Brian J. Polidoro

Building energy analysis tools are available in many forms that provide the ability to address a broad spectrum of energy-related issues in various combinations...

Robustness of Precast Concrete Frames: Experimental and Computational Studies

April 3, 2014

Author(s)

Joseph A. Main, Yihai Bao, Hai S. Lew, Fahim Sadek

This paper describes both full-scale testing and detailed finite-element modeling of a precast concrete moment-frame assembly extracted from the perimeter...

Optical volumetric inspection of sub-20 nm patterned defects with wafer noise

April 2, 2014

Author(s)

Bryan M. Barnes, Francois R. Goasmat, Martin Y. Sohn, Hui Zhou, Richard M. Silver, Andras Vladar, Abraham Arceo

We have previously introduced a new data analysis method that more thoroughly utilizes scattered optical intensity data collected during defect inspection using...

Estimating Fault Detection Effectiveness

April 1, 2014

Author(s)

David R. Kuhn, Raghu N. Kacker, Yu Lei

[Poster] A t-way covering array can detect t-way faults, however they generally include other combinations beyond t-way as well. For example, a particular test...

Support for ACT-R Modeling of Elliptical Endpoint Error Distributions in Mobile Touchscreen 2-D Fitts' Law Tasks

April 1, 2014

Author(s)

Kristen Greene, Melissa A. Gallagher, Franklin Tamborello

Given the high propensity of users motoric errors with smaller touchscreen usa-buttons, knowing the endpoint distributions for finger-based pointing and...

An Empirical Comparison of Combinatorial and Random Testing

April 1, 2014

Author(s)

Laleh Ghandehari, Jacek Czerwonka, Yu Lei, Soheil Shafiee, Raghu N. Kacker, D. Richard Kuhn

Some conflicting results have been reported on the comparison between t-way combinatorial testing and random testing. In this paper, we report a new study that...

Was this page helpful?