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Author: angela hight walker
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Displaying records 1 to 10 of 75 records.
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1. A Highly Practical Route for Large-Area, Single Layer Graphene from Liquid Carbon Sources such as Benzene and Methanol
Published: 10/28/2011
Authors: Gadipelli Srinivas, Irene G. Calizo, Jamie Ford, Guangjun Cheng, Angela R Hight Walker, Taner Yildirim
Abstract: Through a detailed systematic study, we determined the parameters critical for high-quality, single-layer graphene formation and developed a straightforward synthesis that requires no explosive hydrogen or methane gas flow. The synthesis is further ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907820

2. An Assessment of Passive Microwave and Millimeterwave Sensors for the Standoff Detection of Chemical Agents
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7172
Published: 7/1/2004
Authors: Gerald T Fraser, Angela R Hight Walker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841850

3. Analytical Applications of Fourier Transform Microwave (FTMW) Spectroscopy to Trace Gas Analysis
Published: 1/1/1996
Authors: R D. Suenram, Francis John Lovas, J U Grabow, Angela R Hight Walker, C Lugez, P M Chu
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104771

4. Centrifugal Length Separation of Carbon Nanotubes
Published: 10/1/2008
Authors: Jeffrey A Fagan, Matthew Becker, Jae H. Chun, Barry J. Bauer, Jeffrey Ray Simpson, Angela R Hight Walker, Erik K. Hobbie
Abstract: Separation of single wall carbon nanotubes (SWCNTs) by length via centrifugation in a high density medium, and the characterization of both the separated fractions and the centrifugation process are presented. Significant quantities of the separated ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853635

5. Characteristics of Graphene for Quantized Hall Effect Measurements
Published: 6/1/2012
Authors: Randolph E Elmquist, Mariano A. Real, Irene G. Calizo, Brian G Bush, Tian T. Shen, Nikolai Nikolayevich Klimov, David B Newell, Angela R Hight Walker, Randall M. Feenstra
Abstract: This paper describes concepts and measurement techniques necessary for characterization of graphene in the development of graphene-based quantized Hall effect (QHE) devices and resistance standards. We briefly contrast the properties of graphene prod ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910365

6. Characterization of the Coherent Microwave Emission From the Surf II Synchrotron Storage Ring
Published: 7/1/1997
Authors: Gerald T Fraser, Angela R Hight Walker, Thomas B Lucatorto, Uwe Arp, K. K. Lehmann
Abstract: The temporal profile and frequency spectrum of the microwave emission from the Synchrotron Ultraviolet Radiation Facility [SURF II] electron storage ring at the National Institute of Standards and Technology have been studied to access the utility of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841229

7. Comparative Measures of Single Wall Carbon Nanotube Dispersion
Published: 9/14/2006
Authors: Jeffrey A Fagan, Brian Landi, Idan Mandelbaum, Vardhan Bajpai, Barry J. Bauer, Kalman D Migler, Jeffrey Ray Simpson, Angela R Hight Walker, Ryan Raffaelle, Erik K. Hobbie
Abstract: Model polymer composites of DNA wrapped single-wall carbon nanotubes (SWNTs) dispersed in polyacrylic acid are used for a systematic comparison of the different metrologies currently used to evaluate SWNT dispersion. Application of a pH-controlled v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852660

8. Complete Structure of Gauche 1,1,2,2-Tetrafluoroethane Determined by Microwave Spectroscopy
Published: 10/1/2000
Authors: B Mate, Angela R Hight Walker, R D. Suenram, N Craig
Abstract: The complete molecular structure of the high-energy, gauche rotamer of 1,1,2,2-tetrafluoroethane (TFEA), Freon F134, has been determined using Fourier transform microwave spectroscopy. A total of five different ^u13^C and ^u2^H substituted isotopomer ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841442

9. Conformational Analysis of the Jet-Cooled Peptide Mimetic Ethylacetamidoacetate from Torsion-Rotation Spectra
Published: 9/1/2003
Authors: R J Lavrich, Angela R Hight Walker, David F Plusquellic, I Kleiner, R D. Suenram, Jon Torger Hougen, Gerald T Fraser
Abstract: Rotational spectra of two conformers of the dipeptide mimetic, ethyl acetamidoacetate, were measured in a molecular beam using a Fourier-transform microwave spectrometer. In each conformer, internal rotation of the acetyl methyl group gives rise to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841726

10. Conformational Analysis of the Jet-cooled Peptide Mimetic Ethylacetamidoacetate from Torsion-Rotation Spectra
Published: 1/1/2003
Authors: R J Lavrich, Angela R Hight Walker, David F Plusquellic, I Kleiner, R D. Suenram, Jon Torger Hougen, Gerald T Fraser
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103962



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