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You searched on: Author: angela hight walker

Displaying records 31 to 40 of 76 records.
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31. 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

32. 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 ...

33. Magnetic-field-induced assemblies of cobalt nanoparticles
Published: 1/1/2005
Authors: Guangjun Cheng, Angela R Hight Walker, Gerald T Fraser, D B Romero

34. 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

35. 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 ...

36. Rotational Spectra of the Diastereomers of Soman
Published: 4/1/2004
Authors: R D. Suenram, R S DaBell, Angela R Hight Walker, D J Lavrich, David F Plusquellic, M W Ellzy, J M Lochner, L Cash, J O Jensen, A C Samuels
Abstract: The pure rotational spectrum of the nerve agent Soman has been recorded and assigned using a pulsed molecular beam Fourier transform microwave spectrometer. The spectrum consists of transitions from two different isomers that are likely the [SS] (or ...

37. Continuous-Wave Terahertz Spectroscopy of Plasmas and Biomolecules
Published: 3/1/2004
Authors: David F Plusquellic, T M Korter, Gerald T Fraser, R J Lavrich, Eric C Benck, C R. Bucher, Angela R Hight Walker, J L Domenech
Abstract: Continuous-wave linear-absorption spectroscopy based on THz radiation generated by solid-state photomixers has been applied to the investigation of the dynamics of biomolecules in polyethylene matrices and to line shape studies of HF for diagnostics ...

38. Surface Enhanced Raman Spectroscopy in a Microfluidic Device
Published: 2/1/2004
Authors: D Dunmire, D B Romero, Guangjun Cheng, Angela R Hight Walker
Abstract: Surface enhanced Raman spectroscopy (SERS) is employed to study the solution phase vibrational structure of molecules on gold and silver colloids. Gold and silver colloids show large enhancement factors enabling sub-micromolar detection limits. Using ...

39. Synthesis of Bioconjugated Magnetic Nanoparticles for Magneto-Raman Study
Published: 2/1/2004
Authors: Guangjun Cheng, D B Romero, D Dunmire, Angela R Hight Walker
Abstract: We are investigating the effects of an externally applied magnetic field on the structure and magnetic properties of biomolecules (DNA and proteins). A newly constructed, magneto-Raman confocal microscope system couples a cryo-magnet to a triple grat ...

40. Rotational Spectra, Conformational Structures and Dipole Moments of 2-(Ethylthio)ethanol by Jet-Cooled FTMW and Ab Initio Calculations
Published: 1/1/2004
Authors: R D. Suenram, David F Plusquellic, Francis John Lovas, Angela R Hight Walker, Q Liu, J. Xu, O Jensen, A C Samuels

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