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Topic Area: Advanced Materials

Displaying records 71 to 75.
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71. An Octagonal Architecture for High Strength PIT Nb^d3^Sn Conductors
Topic: Advanced Materials
Published: 6/6/2006
Authors: L. R. Motowidlo, E Barzi, D. Turrioni, Najib Cheggour, Loren Frederick Goodrich
Abstract: Powder-in-Tube (PIT) Nb^d3^Sn conductors have been fabricated utilizing a low-cost intermetallic Cu^d5^Sn^d4^ powder as the tin source. A novel octagonal PIT design that incorporates dispersion strengthened copper as well as a hexagonal PIT design w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900875

72. Wavelet Transform Signal Processing to Distinguish Different Acoustic Emisson Sources
Topic: Advanced Materials
Published: 1/1/2003
Authors: K S Downs, Marvin Arnold Hamstad, E P Baars
Abstract: A database of wideband acoustic emission (AE) modeled signals were used to continue to examine the use of wavelet transform (WT) results to accomplish identification of AE sources. The AE signals in the database were created by use of a validated thr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851337

73. Examination of the Application of a Wavelet Transformation to Acoustic Emission Signals: Part 2. Source Location
Topic: Advanced Materials
Published: 1/1/2002
Authors: Marvin Arnold Hamstad, Agnes O'Gallagher, John M. Gary
Abstract: In Part 2, (Part 1 Source Identification) the same finite-element-generated database of acoustic emission (AE) signals was used to examine the application of a wavelet transform (WT) to improve the accuracy of AE source location. The method utilizes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851302

74. Examination of the Application of a Wavelet Transformation to Acoustic Emission Signals: part 1. Source Identification
Topic: Advanced Materials
Published: 1/1/2002
Authors: Marvin Arnold Hamstad, Agnes O'Gallagher, John M. Gary
Abstract: A database of wideband acoustic emission (AE) modeled signals was used in Part 1 to examine the application of a wavelet transform (WT) to accomplish identification of AE sources. The AE signals in the database were created by use of a validted thre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851301

75. On the anisotropic attenuation behavior of the flexure mode of carbon fiber composites
Topic: Advanced Materials
Published: Date unknown
Authors: Brian M Burks, Marvin Arnold Hamstad
Abstract: In this work a coupled experimental-numerical approach was developed to study the anisotropic far field attenuation behavior of plate-type unidirectional carbon fiber composites. Experimentally a technique that utilizes a time-frequency analysis ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913662



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