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

On-Chip Silicon Photonic Thermometers: from Waveguide Bragg Grating to Ring Resonators sensors

May 13, 2015

Author(s)

Nikolai Klimov, Thomas P. Purdy, Zeeshan Ahmed

Fundamental limitations of resistance thermometry, as well as the desire to reduce sensor ownership cost has led to considerable interest in the development of...

New night vision goggle gain definition

May 12, 2015

Author(s)

Vyacheslav B. Podobedov, George P. Eppeldauer, Thomas C. Larason

A new definition is proposed for the calibration of Night Vision Goggle (NVG) gains. This definition is based on the measurement of radiometric input and output...

Navigation Performance Evaluation for Automated Guided Vehicles

May 12, 2015

Author(s)

Roger V. Bostelman, Tsai Hong Hong, Geraldine S. Cheok

Automatic guided vehicles (AGVs), an industrial form of mobile robot, typically navigate using a central computer commanding AGV movement on predefined paths...

Electro-thermal Simulation of 1200 V 4H-SiC MOSFET Short-Circuit SOA

May 10, 2015

Author(s)

Tam H. Duong, Jose M. Ortiz, David W. Berning, Allen R. Hefner Jr., Sei-Hyung Ryu, John W. Palmour

The purpose of this paper is to introduce a dynamic electro-thermal simulation and analysis approach for device design and short-circuit safe-operating-area...

Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Dual-Comb Spectroscopy

May 10, 2015

Author(s)

Flavio Caldas da Cruz, Daniel I. Maser, Todd Johnson, Gabriel G. Ycas, Andrew M. Klose, Fabrizio R. Giorgetta, Ian R. Coddington, Nathan R. Newbury, Scott A. Diddams

Mid-infrared femtosecond optical frequency combs at 2.8 - 3.5 υm were produced by difference frequency generation of the spectral components of a near-infrared...

Free Space Microwave Non Destructive Characterization of Composite Materials

May 4, 2015

Author(s)

Jan Obrzut, Ahmed M. Hassan, Edward J. Garboczi

We present a free-space microwave experimental measurement system for the non-destructive testing of composite materials. The system operates in the Q-...

A high-resolution single-photon camera based on superconducting single photon detector arrays and compressive sensing

May 4, 2015

Author(s)

Thomas Gerrits, Michael S. Allman, Daniel Lum, Varun B. Verma, John Howell, Richard P. Mirin, Sae Woo Nam

We present our results on utilizing a superconducting nanowire single photon detector array and compressive imaging techniques to perform single photon imaging...

SHREC'15: Range Scans based 3D Shape Retrieval

May 3, 2015

Author(s)

Afzal A. Godil

The objective of the SHREC'15 Range Scans based 3D Shape Retrieval track is to evaluate algorithms that match range scans of real objects to complete 3D mesh...

Service Life Modeling of Reinforced High Volume Fly ash (HVFA) Concrete Structures Containing Cracks

May 1, 2015

Author(s)

Scott Z. Jones, Dale P. Bentz, Kenneth A. Snyder, Nicos Martys, Daniel S. Hussey, David L. Jacobson

Chloride ions, resulting from the application of de-icing salts travel through the concrete matrix by diffusion in a connected pore network. Cracks in concrete...

A Compact Millimeter-wave Multisine Generator for Calibrating Broadband Vector Receivers

April 30, 2015

Author(s)

Paul D. Hale, Kate Remley, Dylan Williams, Jeffrey Jargon, Chih-Ming Wang

We propose a compact and low cost waveform source that can be used to calibrate the magnitude and phase response of vector receivers over a bandwidth as large...

Progress Toward Standardized Additive Manufacturing Test Artifacts

April 29, 2015

Author(s)

Shawn P. Moylan

Users and buyers of additive manufacturing (AM) systems need to know system performance characteristics to make important, basic decisions such as whether or...

Post-process machining of additive manufactured stainless steel

April 29, 2015

Author(s)

Brandon M. Lane, Shawn P. Moylan, Eric P. Whitenton

Due to the poorer surface finish and geometric accuracy of additive manufactured (AM) parts compared to machined parts, it is inevitable that parts fabricated...

Certified KLST Miniaturized Charpy Specimens for the Indirect Verification of Small-Scale Impact Machines

April 28, 2015

Author(s)

Enrico Lucon, Christopher N. McCowan, Raymond L. Santoyo, Jolene D. Splett

Small specimen test techniques are becoming ever more popular as the need increases to characterize mechanical properties by use of the smallest possible amount...

Fast Minimization of Region-based Active Contours using the Shape Hessian of the Energy

April 28, 2015

Author(s)

Gunay Dogan

We propose a novel shape optimization algorithm for region-based active contour models. Region-based active contours are preferred for many segmentation...

Performance Measurement of Mobile Manipulators

April 24, 2015

Author(s)

Roger V. Bostelman, Tsai Hong Hong, Jeremy A. Marvel

This paper describes a concept for measuring the reproducible performance of mobile manipulators to be used for assembly or other similar tasks. An AGV with an...

Analysis of a Half-Scale Composite Floor System Test under Column Loss Scenarios

April 23, 2015

Author(s)

Joseph A. Main, Jonathan M. Weigand, Eric S. Johnson, Tim Francicso, Judy Liu, Jeffrey W. Berman, Larry A. Fahnestock

This paper describes modeling and analysis of a half-scale steel gravity frame system with composite concrete slab on steel deck that was constructed and tested...

New Steel Gravity Connection Details for Enhanced Integrity

April 23, 2015

Author(s)

Jonathan M. Weigand, Jeffrey W. Berman

Recent large-scale tests have found that Steel Gravity Framing Systems (SGFSs) with conventional connections were inadequate to support the integrity gravity...

Measuring collected gas with microwave and acoustic resonances

April 23, 2015

Author(s)

Keith A. Gillis, James W. Schmidt, Michael R. Moldover, James B. Mehl

With calibrations of large flow meters in mind, we established the feasibility of determining the mass M of argon gas contained within a 0.3 m 3 commercially...

Assessment of First Generation Performance-based Seismic Design Methods: Case Study on a 4-story Reinforced Concrete Special Moment Frame

April 23, 2015

Author(s)

Siamak Sattar, Anne M. Hulsey

The anticipated performance of a 4-story reinforced concrete (RC) building designed in accordance with ASCE/SEI 7, is assessed using ASCE/SEI 41. Engineering...

Community Resilience of the Built Environment

April 22, 2015

Author(s)

Therese P. McAllister

Buildings, facilities, and infrastructure systems play a key role in the life of a community by supporting housing, business, government, industry, and other...

ASCE/SEI 7 Appendix E Proposal: Performance-Based Design Procedures for Fire Effects on Structures

April 22, 2015

Author(s)

Therese P. McAllister, Kevin La Malva, Maria Garlock

The ASCE/SEI Technical Committee on Fire Protection was formed in 2012 to support professional structural engineers conducting performance-based design of...

Overview of the TREC 2014 Clinical Decision Support Track

April 22, 2015

Author(s)

Ellen M. Voorhees

The Text REtrieval Conference (TREC) Clinical Decision Support Track fosters research on systems that link electronic health records with information that is...

A Fast and Self-Consistent Approach for Multi-Cycle Equilibrium Core Studies using Monte Carlo Models

April 19, 2015

Author(s)

Zeyun NMN Wu, Robert E. Williams

A fast and self-consistent approach, PRELIM approach, is described in this paper with the aim of quickly delivering a multi-cycle equilibrium configuration...

Design and Capabilities of NISTs Scale-Model Smokestack Simulator (SMSS)

April 17, 2015

Author(s)

Aaron N. Johnson, Joey T. Boyd, Eric Harman, Mohammad M. Khalil, Jacob E. Ricker, Christopher J. Crowley, Rodney A. Bryant, Iosif I. Shinder

The amount of CO 2 emitted from a coal-fired power plant (CFPP) is measured by continuous emissions monitoring systems (CEMS) permanently installed in the...

Real Gas Corrections for High Beta Ratio Critical Flow Venturi (CFV) Installations.

April 17, 2015

Author(s)

Aaron N. Johnson, Eric W. Lemmon

For almost 50 years flow measurement applications using critical flow venturis (CFVs) have relied exclusively on the critical flow function (C*) to correct for...

Equivalence Class Verification and Oracle-Free Testing Using Two-layer Covering Arrays

April 17, 2015

Author(s)

David R. Kuhn, Raghu N. Kacker, Yu Lei, Jose Torres-Jimenez

This short paper introduces a method for verifying equivalence classes for module/unit testing. This is achieved using a two-layer covering array, in which some...

Forming limit diagram predictions using a self-consistent crystal plasticity model: a parametric study

April 15, 2015

Author(s)

Youngung Jeong, Minh-Son Pham, Mark A. Iadicola, Adam A. Creuziger

A numerical model to predict forming limit diagram (FLD) for polycrystalline metal sheets is presented. In it, the Marciniak-Kuczynski (MK) approach is...

Micro-Flow Calibration Facility at NIST

April 15, 2015

Author(s)

James W. Schmidt, John D. Wright

The Fluid Metrology Group (FMG) at NIST is developing a primary, dynamic gravimetric liquid flow standard for use in the range 1 mL/min to 100 nL/min (and...

NISTs New 3D Airspeed Calibration Rig, Addresses Turbulent Flow Measurement Challenges

April 14, 2015

Author(s)

Iosif I. Shinder, Vladimir Khromchenko, Michael R. Moldover

Outdoor air flows and flue-gas flows in large conduits and large stacks have significant swirl and turbulence. Accurate measurements of such complex flows are...

Frontiers of Characterization and Metrology for Nanoelectronics: 2015

April 14, 2015

Author(s)

Erik M. Secula, David G. Seiler

Was this page helpful?