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You searched on: Author: angela hight walker

Displaying records 31 to 40 of 81 records.
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31. Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles
Published: 4/1/2007
Authors: Guangjun Cheng, Angela R Hight Walker
Abstract: Cobalt/gold (Co/Au) bimetallic nanoparticles are prepared by synthesizing Au via chemical reduction in the presence of pre-synthesized Co nanoparticles. Transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) absorption spectrometry, and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841034

32. Dielectric response of aligned semiconducting single-wall nanotubes
Published: 1/1/2007
Authors: J A Fagan, Jeffrey Ray Simpson, B J Landi, L J Richter, I Mandelbaum, V Bajpai, D L Ho, R Raffaelle, Angela R Hight Walker, B J Bauer, Erik K Hobbie
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101743

33. The influence of temperature on the magnetic behavior of colloidal cobalt nanoparticles
Published: 1/1/2007
Authors: C L Dennis, Guangjun Cheng, K A Baler, B B Maranville, Angela R Hight Walker, R D Shull
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101730

34. 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

35. Method for Measuring the Raman Gain Tensor in Optical Fiber
Published: 4/7/2006
Authors: Idan Mandelbaum, M Bolshtyansky, T F Heinz, Angela R Hight Walker
Abstract: In this paper we introduce a technique to measure the tensor properties of the Raman gain in a short piece (10m) of silica based polarization maintaining optical fiber. We present the results of the measurement and show agreement with new and previo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840959

36. High Resolution THz Spectroscopy of Crystalline Trialanine: Extreme Sensitivity to {beta}-sheet Structure and Co-crystallized Water
Published: 4/6/2006
Authors: Karen M. Siegrist, C R. Bucher, Idan Mandelbaum, Angela R Hight Walker, R Balu, Susan K. Gregurick, David F Plusquellic
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104190

37. Quantitative, Interactive Measurement of Tissue Engineering Scaffold Structure Using Immersive Visualization
Published: 1/1/2006
Authors: Jeffrey A Fagan, Erik K. Hobbie, Brian Landi, Idan Mandelbaum, Vardhan Bajpai, Barry J. Bauer, Kalman D Migler, Jeffrey Ray Simpson, Angela R Hight Walker, Ryan Raffaelle
Abstract: At NIST, we are using new approaches to better understand and quantify the structure of tissue engineering scaffolds. This approach uses immersive visualization (IV) and is inherently three dimensional, multivariate and interactive, providing real-ti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852639

38. Magnetic-field-induced assemblies of cobalt nanoparticles
Published: 1/1/2005
Authors: Guangjun Cheng, Angela R Hight Walker, Gerald T Fraser, D B. Romero
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103692

39. 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

40. Rotational Spectra, Conformational Structures and Dipole Moments of Thiodiglycol by Jet-Cooled FTMW and Ab Initio Calculations
Published: 5/1/2004
Authors: L H Xu, Q Liu, R D. Suenram, Francis John Lovas, Angela R Hight Walker, J O Jensen, A C Samuels
Abstract: The rotational spectra of three low-energy conformers of thiodiglycol (TDG) (HOCH2CH2SCH2CH2OH) have been measured in a molecular beam using a pulsed-nozzle Fourier-transform microwave spectrometer. To determine the likely conformational structures w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841800



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