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Displaying 101 - 125 of 617

Creep of Lanthanum Gallate

March 1, 2002
Author(s)
William E. Luecke, T R. Armstrong
… non-stoichiometry with compositions (La 0.9 Sr 0.1 )z(Ga 0.8 Mg 0.2 )O 3-delta (z =1.0,0.98, and 0.95). Creep tests in four-point 950 C 75 Mpa in air … ways: p = 3.1 0.2 for z = 0.98, and p = 1.9 0.1 for z = 0.95. The measured apparent activation energy, Q for creep is …

Resonant microwave power absorption and relaxation of the energy levels of the molecular nanomagnet Fe 8 using superconducting quantum interference device-based magnetometry

August 15, 2005
Author(s)
Brant Cage, Stephen E. Russek, David Zipse, Micah North, Naresh S. Dalal
… Energy levels and saturation of molecular nanomagnet Fe 8 crystals were investigated using a 95 and 141 GHz electron paramagnetic resonance (EPR) … of the energy levels of the molecular nanomagnet Fe 8 using superconducting quantum interference device-based …

Reference Correlations for the Density and Thermal Conductivity, and Review of the Viscosity Measurements, of Liquid Titanium, Zirconium, Hafnium, Vanadium, Niobium, Tantalum, Chromium, Molybdenum, and Tungsten

January 22, 2024
Author(s)
Eleftheria Ntonti, Sofia Sotiriadou, Marc Assael, Marcia L. Huber, Boris Wilthan, Manabu Watanabe
… and tungsten, characterized by an expanded uncertainty (95 %) of 2.0 %, 2.1 %, 1.9 %, 2.2 %, 2.4 %, 2.6 %, 3.2 %, 2.1 … chromium, are characterized by an expanded uncertainty (95 %) of 14.3 %, 8.4 %, 6.1 %, 11.4 %, 7.6 %, 4.0 %, 4.6 %, and 5.1 %, …

Effects of Hydrolytic Degradation on In Vitro Biocompatibility of Poly (d,l-lactic acid)

March 1, 2002
Author(s)
S Yoneda, William F. Guthrie, David S. Bright, C A. Khatri, Francis W. Wang
… time of P(d,l-LA) (-741 307 m 2 per week at the 95% confidence level). All the quoted uncertainties herein … cells (up to 2.10 0.27 cells/mm 2 in log 10 units at the 95% confidence level, depending on the measurement location … disks (up to -0.175 0.064 log 10 units per week at the 95% confidence level, again depending on measurement location …

Chemical Fume Hoods and Biological Safety Cabinets

June 4, 2014
Author(s)
Thomas J. Bruno
Engineered safety equipment is preferred over the reliance on personal protective equipment, and the fume hood is one such engineered safety device that is nearly ubiquitous in laboratories. Laboratories concerned with biological specimens (microbes

Common Symbols Used in Gas and Liquid Chromatographic Schematic Diagrams

June 4, 2014
Author(s)
Thomas J. Bruno
The literature of gas and liquid chromatography frequently contains schematic diagrams that depict analytical apparatus and peripherals. The interpretation of such diagrams can be facilitated by the following graphics that show the most common symbols used

Figures of Merit

June 4, 2014
Author(s)
Thomas J. Bruno
In the interpretation of results from a particular technique, one often must evaluate the performance of the measurement on the basis of objective measures that are called figures of merit. The following table provides a description of the more common

Varieties of Hyphenated Gas Chromatography with Mass Spectrometry

June 4, 2014
Author(s)
Thomas J. Bruno
Because of the very powerful and common application of mass spectrometry with gas chromatography, the various technologies warrant more detailed consideration.[1-4] The following table provides basic information on the capabilities and applicability of the

Chip-Scale Atomic Frequency References: Fabrication and Performance

December 1, 2005
Author(s)
John Kitching, Svenja A. Knappe, Li-Anne Liew, John M. Moreland, Hugh Robinson, Peter D. Schwindt, V Shah, V Gerginov, Leo W. Hollberg
The physics package for a chip-scale atomic frequency reference was constructed and tested. The device has a total volume of 9.5 mm 3, dissipates 75 mW of electrical power at an ambient temperature of 45 °C and has a short-term fractional frequency

Chip-Scale Atomic Frequency References: Fabrication and Performance

March 21, 2005
Author(s)
John E. Kitching, Svenja A. Knappe, Li-Anne Liew, John Moreland, Hugh Robinson, P Schwindt, V Shah, Vladislav Gerginov, Leo W. Hollberg
The physics package for a chip-scale atomic frequency standard was constructed and tested. The device has a total volume of 9.5 mm 3, dissipates 75 mW of electrical power at an ambient temperature of 45 °C and has a short-term fractional frequency

The NIST Industrial Thermometer Calibration Laboratory

June 1, 2001
Author(s)
C D. Vaughn, Gregory F. Strouse
The NIST Industrial Thermometer Calibration (ITC) Laboratory provides calibrations of industrial thermometers over the range from 196 C to 550 C. The different types of thermometers include liquid-in-glass (LiG), thermistors, thermocouples (

The choice of message and messenger to drive behavior change that averts the health impacts of wildfires: an online randomized controlled experiment

December 16, 2022
Author(s)
Payam Aminpour Mohammadabadi, Jennifer Helgeson, Paul Ferraro
… Narrative frame increased click-through rates by 25.3% (95% CI = 22.2, 28.4%), with larger estimated effects among … was small and statistically nonsignificant (2.2%; 95% CI = − 0.3, 4.7%). The estimated interaction effect … was also small and statistically nonsignificant (3.9%; 95% CI = − 1.1, 9.1%). Conclusions Traditional public service …

Virtual Assembly Design Environment

September 1, 1995
Author(s)
Kevin W. Lyons
Virtual reality is a technology which is often regarded as a natural extension to 3D computer graphics with advanced input and output devices. This technology has only recently matured enough to warrant serious engineering applications. The integration of
Displaying 101 - 125 of 617
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