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Displaying 9701 - 9725 of 9863

Atmospheric Oxidation Mechanism of Methyl Pivalate, (CH 3 ) 3 CC(O)OCH 3

August 1, 2001
Author(s)
T J. Wallington, Y Ninomiya, M Mashino, M Kawasaki, Vladimir L. Orkin, Robert E. Huie, Michael J. Kurylo III
Flash photolysis-resonance fluorescence techniques were used to measure the rate constant for the reaction of OH radicals with methyl pivalate, (CH 3) 3CC(O)OCH 3 over the temperature range 250-370 K. The rate constant exhibited a weak temperature

Characteristics of Partial Discharges on a Dielectric Surface in SF 6 -N 2 Mixtures

December 1, 1998
Author(s)
X. Han, Yicheng Wang, Loucas G. Christophorou, Richard J. Van Brunt
An important tool for improving the reliability of HV-insulation systems relies on partial discharge (PD) measurements. The assessment of the insulation failure of HV equipment using PD measurements requires an interpretation of the PD measurements

Assessment of the Fire Performance of School Bus Interior Components. Final Report.

July 1, 1990
Author(s)
E Braun, S Davis, J H. Klote, Barbara C. Levin, M Paabo
Since seat assemblies represent the single largest type of combustible fuel in a school bus interior, this study is limited to currently used and state-of-the-art material assemblies. Six different seat assemblies having a range of fire performance were

Architecture of the NBS Pipelined Image Processing Engine

January 2, 1984
Author(s)
Ernest Kent, Michael O. Shneier, Ronald Lumia, M Herriman, R Luck, G Henrici
The Sensory-Interactive Robotics Group of the National Bureau of Standards is producing PIPE (Pipelined Image Processing Engine), an experimental, multi-stage, multi-pipelined image processing device for research in low-level machine vision. The device can

Error Quantification in Dynamic Applications of Weakly Nonlinear Transducers

November 3, 2020
Author(s)
Lautaro D. Cilenti, Akobuije Chijioke, Balakumar Balachandran
Characterization and quantification of dynamic measurements is an ongoing area of research in the metrological community as new calibration methods are being developed to address dynamic measurement applications. The development undertaken to date largely

A STANDARD ANALYSIS APPROACH TO DETERMINE PRODUCT APPLICABILITY

August 31, 2011
Author(s)
Paul W. Witherell, Prabir Sarkar, Anantha Narayanan Narayanan, Jae H. Lee, Sudarsan Rachuri
Standards and regulations have become an important part of today’s society. Organizational and geographical dispersions of standards often create situations where manufacturers are forced to meet various standards for a product to reach expanded markets or

HVAC CAD Layout Tools: A Case Study of University/Industry Collaboration

August 1, 1996
Author(s)
J Cagan, R Clark, P Dastidar, Simon Szykman, P Weisser
An effective partnership between industry and the university resulted in the system of design tools for the layout of HVAC systems presented in this paper and illustrated with the design of a heat pump. The system provides tools to assist in the placement

Measured Impact of a Rooftop Photovoltaic System

August 1, 2003
Author(s)
Arthur H. Fanney, E R. Weise, K R. Henderson
A 35-kilowatt roof top photovoltaic system has been installed at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. The system, located on a the roof that connects NIST s Administration Building to its adjoining conference

STEP-NC COMPLIANT DATA REPRESENTATIONS FOR POWDER BED FUSION IN ADDITIVE MANUFACTURING

November 11, 2022
Author(s)
Fahad Milaat, Paul Witherell, Martin Hardwick, Ho Yeung, Vincenzo Ferrero, Laetitia Monnier, Matthew Brown
Powder bed fusion (PBF) is an additive manufacturing (AM) technology that uses powerful beams to fuse powder material into layers of scanned patterns, thus producing parts with great geometric complexity. For PBF, process parameters, environmental control

Wireless Channel Characterization for UWB Communication in Capsule Endoscopy

August 30, 2023
Author(s)
Katjana Ladic, Kamran Sayrafian, Dina Simunic, Kamya Yazdandoost
Since its invention in the early 1990s the technology behind capsule endoscopy has been making rapid progress. The emergence of high-resolution miniature video cameras along with other microsensor technology have increased the data rate and power

Additive Manufacturing Data Integration and Recommended Practice

June 30, 2023
Author(s)
Yan Lu, Milica Perisic, Albert T. Jones
Additive manufacturing (AM) creates parts layer by layer directly from three-dimensional computer-aided design data. Building in layers allows the fabrication of complex geometric shapes as well as functionally graded materials. Despite the part-quality

Electrically Conductive 3D Metal-Organic Framework Featuring p-Acidic Hexaazatriphenylene Hexacarbonitrile Ligands with Anion-p Interaction and Efficient Charge-Transport Capabilities

September 8, 2020
Author(s)
Ashok Yadav, Dillip K. Panda, Shiyu Zhang, Wei Zhou, Sourav Saha
Owing to their unparalleled synthetic simplicity, structural tunability, and functional versatility, electrically conductive metal–organic frameworks (MOFs) have emerged as one of the most promising electronic materials of the 21 st century. With much of

Effects of laser-energy density and build orientation on the defect structure, microstructure and tensile properties of Inconel 718 parts manufactured with laser powder bed fusion

June 30, 2020
Author(s)
Dillon Watring, Jake Benzing, Nik Hrabe, Ashley Spear
This study investigates the processing-structure-property relationships of Inconel 718 manufactured by laser powder bed fusion. Three di erent build conditions were selected for the Inconel 718 specimens: 0 build orientation and 38 J/mm3, 0 build

Approaches to Training Multi-Class Semantic Image Segmentation of Damage in Concrete

May 14, 2020
Author(s)
Peter Bajcsy, Steven B. Feldman, Michael P. Majurski, Kenneth A. Snyder, Mary C. Brady
This paper addresses the problem of creating a large quantity of high-quality training image segmentation masks from scanning electron microscopy (SEM) images of concrete samples that exhibit progressive amounts of degradation resulting from alkali-silica
Displaying 9701 - 9725 of 9863
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