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Topic Area: Energy Conversion, Storage, and Transport
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Displaying records 61 to 70 of 101 records.
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61. Synthesis and Single-Crystal X-Ray Diffraction Studies of New Framework Substituted Type II Clathrates, Cs^d8^Na^d16^Ag^dx^Ge^d136-x^ (x < 7)
Topic: Energy Conversion, Storage, and Transport
Published: 4/13/2007
Authors: Matthew Beekman, Winnie K Wong-Ng, James A Kaduk, Alexander J. Shapiro, George S. Nolas
Abstract: New inorganic type II clathrates with Ag atoms substituting for framework Ge atoms, Cs8Na16AgxGe136-x (x = 0, 5.9, and 6.7), have been synthesized by reaction of the pure elements at high temperature. Structural refinements have been performed using ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851025

62. A High-Throughput Thermoelectric Power-Factor Screening Tool for Rapid Construction of Thermoelectric Property Diagrams
Topic: Energy Conversion, Storage, and Transport
Published: 1/23/2007
Authors: Makoto Otani, Nathan Lowhorn, Peter K. Schenck, Winnie K Wong-Ng, Martin L Green, K Itaka, H Koinuma
Abstract: We have developed a high throughput screening tool that maps out thermoelectric power factors of combinatorial composition-spread film libraries. The screening tool allows us to measure the electrical conductivity and Seebeck coefficient of over 1000 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851068

63. Changes in Electronic Structure of the Electrochemically Li-ion Deintercalated LiNiO2 System Investigated by Soft X-ray Absorption Spectroscopy
Topic: Energy Conversion, Storage, and Transport
Published: 12/7/2006
Authors: W S Yoon, Kyung Yoon Chung, James McBreen, Daniel A Fischer, Xiao-Qing Yang
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854294

64. Combined NMR and XAS Study on Local Environments and Electronic Structures of the Electrochemically Li-Ion Deintercalated Li1-xCo1/3Ni1/3Mn1/302 Electrode System
Topic: Energy Conversion, Storage, and Transport
Published: 1/1/2004
Authors: W S Yoon, C P Grey, Mahalingam Balasubramanian, Xiao-Qing Yang, Daniel A Fischer, James McBreen
Abstract: Combined 6Li MAS NMR, in-situ metal K-edge (hard) XAS, and O K-edge (soft) XAS have been carried out during the first charging process for the layered Li1-xCo1/3Ni1/3Mn1/3O2 cathode material. The 6Li MAS NMR results showed the prescence of Li in the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850733

65. Improving the Uncertainty Analysis of NIST's Pulse Parameter Measurement Service
Topic: Energy Conversion, Storage, and Transport
Published: 11/1/2000
Authors: Nicholas G Paulter Jr, Donald R Larson
Abstract: A new uncertainty analysis is being performed for NIST's pulse parameter measurement service that represents the new pulse parameter measurement and extraction process. This new analysis is also expected to have lower uncertainties compared to those ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=27354

66. High Frequency and Broadband Signal Measurements by Ultrafast Opto-Microwave Intermixing and Sampling
Topic: Energy Conversion, Storage, and Transport
Published: 9/1/2000
Authors: W. L. Cao, M. Du, C G Lee, Nicholas G Paulter Jr
Abstract: Low frequency replication (600 kHz to 18 MHz) of a high frequency waveform (1 GHz to 30 GHz) was achieved using a photoconductive-based optical-microwave (OM) sampler. This OM sampler performs better than a 20 GHz digitizing sampling oscilloscope and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=2865

67. Compact Photoconductive-based Sampling System with Electronic Sampling Delay
Topic: Energy Conversion, Storage, and Transport
Published: 5/1/2000
Authors: W. L. Cao, M. Du, C G Lee, Nicholas G Paulter Jr
Abstract: As electronic signals move to higher frequencies and wider bandwidths, there is need for new methods of measuring these bandwidths, there is need for new methods of measuring these high frequency/high speed (tens of Hgz and or high bit rate (tens of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=23943

68. Improved Time-Base for Waveform Parameter Estimation
Topic: Energy Conversion, Storage, and Transport
Published: 5/1/2000
Authors: Bryan C Waltrip, Owen Brede Laug, Gerard Nordeen Stenbakken
Abstract: An improved gated-oscillator time-base and associated auto-calibration algorithm for use in a high-accuracy sampling waveform acquistion system are described. The time-base architecture consists of a stable 100 MHz gated-oscillator, 24-bit counter c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=12235

69. Non-Iterative Waveform Deconvolution Using Analytic Reconstruction Filters with Time-Domain Weighting
Topic: Energy Conversion, Storage, and Transport
Published: 5/1/2000
Authors: Sandip Roy, T. Michael Souders
Abstract: A new deconvolution approach is described for reconstructing fast step-like or impulsive signals that have been measured with a sampling oscilloscope for which an impulse response estimate is available. The approach uses analytic reconstruction filt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=19342

70. Nonrandom Quantization Errors in Timebases
Topic: Energy Conversion, Storage, and Transport
Published: 5/1/2000
Authors: Gerard Nordeen Stenbakken, D. Liu, J. A. Starzyk, Bryan C Waltrip
Abstract: Timebase distortion causes nonlinear distortion of waveforms measured by sampling instruments. When such instruments are used to measure the rms amplitude of the sampled waveforms, such distortions result in errors in the measured rms values. This pa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=5658



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