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Search Publications by: Robert M Dimeo (Fed)

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Displaying 1 - 13 of 13

Why Polymer Glasses with Enhanced Sub-nanosecond Relaxation are Tougher

February 12, 2021
Author(s)
Christopher Soles, Adam B. Burns, Kanae N. Ito, Jack Douglas, Robert Dimeo, Madhu Sudan Tyagi, Jingsheng Wu, Albert F. Yee, Yueh-Ting Shih, Liping Huang
This manuscript explores the connection between the fast relaxation processes in a polymer glass and essential trends in the mechanical toughness, a non-linear mechanical property that is of practical interest for engineering polymers with high impact

Importance of Sub-Nanosecond Fluctuations on the Toughness of Polycarbonate Glasses

July 23, 2020
Author(s)
Christopher L. Soles, Kanae N. Ito, Adam B. Burns, Edwin P. Chan, Robert M. Dimeo, Madhu Sudan Tyagi, Albert F. Yee, Jianwei Liu
This article explores the relationship between the nano- to picosecond dynamics, as quantified by elastic incoherent neutron scattering, in polycarbonate (PC) glasses with their mechanical toughness. We establish a robust correlation between mechanical

Sketchnote summary of "The Backscattering Story: A Personal View"

November 16, 2017
Author(s)
Robert M. Dimeo
In August 2014, Dr. Anton Heidemann published a short, personal history of the development of neutron backscattering. His fascinating article 1 described the technical innovations that were made during the development of this technique, and it is

Sketchnoting: An Analog Skill in the Digital Age

November 1, 2016
Author(s)
Robert M. Dimeo
In the last decade, a method of notetaking incorporating hand-drawn visual elements has become an increasingly popular technique for recording information from meetings and presentations at conferences. Why has it become so popular? Proponents and

The NIST Plan for Providing Public Access to Results of Federally Funded Research

October 27, 2015
Author(s)
Katherine E. Sharpless, Regina L. Avila, Sally S. Bruce, Wo L. Chang, Robert M. Dimeo, Virginia Covahey, Alan K. Dohne, Heather M. Evans, Aaron P. Fein, Donna J. Kimball, Andrea M. Medina-Smith, Alan E. Munter, James K. Olthoff, Dianne L. Poster, Kathleen M. Roberts, Susannah B. Schiller, John H. Scott, Barbara P. Silcox, James A. St Pierre, Mark D. Stiles
Documentation of the evolution of NIST's plan for providing public access to results of federally funded research is provided, including the plan itself, responses to comments made by NIST staff, and public comments received in response to a request for

Incoherent Neutron Scattering and the Dynamics of Confined Polycarbonate Films

January 1, 2002
Author(s)
Christopher L. Soles, Jack F. Douglas, Wen-Li Wu, Robert M. Dimeo
Incoherent elastic neutron scattering measurements are performed on thin (1015 to 75 ) polycarbonate films supported on Si wafers. The mean-square atomic displacement is determined by fitting the intensity data to the Debye-Waller factor and we find that
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