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Displaying 251 - 275 of 473

Oscillatory Exchange Coupling in Fe/Au/Fe(100)

January 1, 1994
Author(s)
John Unguris, Robert Celotta, Daniel T. Pierce
Scanning electron microscopy with polarization analysis was used to investigate the interlayer exchange coupling in Fe/Au/Fe(100) sandwich structures. The films were epitaxially grown on single-crystal Fe(100) substrates. Electron diffraction measurements

Structural, Magnetic, and Electronic Evolution of the Spin-Ladder System BaFe 2 S 3-x Se x with Isoelectronic Substitution

June 12, 2020
Author(s)
Jia Yu, Meng Wang, Benjamin A. Frandsen, Hualei Sun, Junjie Yin, Zengjia Liu, Shan Wu, Ming Yi, Zhijun Xu, Arani Acharya, Qingzhen Huang, Edith Bourret-Courchesne, Jeffrey W. Lynn, Robert J. Birgeneau
… 2 S 3 ) to Pnma (BaFe 2 Se 3 ) was identified around x = 0.71. Neutron diffraction measurements on the samples with x = 0.2, 0.4, and 0.7 reveal that the Néel temperature of the stripe …

1 GHz Waveform Synthesis with Josephson Arrays

July 31, 2019
Author(s)
Christine A. Donnelly, Justus A. Brevik, Nathan E. Flowers-Jacobs, Peter F. Hopkins, Paul D. Dresselhaus, Samuel P. Benz
For the first time, we synthesize single- and multiple-tone waveforms at gigahertz frequencies from arrays of Josephson junctions and demonstrate quantum-locked operation over a range of experimental input parameters. We first use a lumped-element circuit

1 GHz Waveform Synthesis With Josephson Junction Arrays

July 31, 2019
Author(s)
Christine A. Donnelly, Nathan E. Flowers-Jacobs, Justus A. Brevik, Anna E. Fox, Paul D. Dresselhaus, Peter F. Hopkins, Samuel P. Benz
… to synthesize 1 and 2 GHz single-tone waveforms with −71 dBm output power and in-band spurious-free dynamic range …

Thermodynamic properties of three-ring aza-aromatics.2. Experimental results for 1,10-phenanthroline, phenanthridine, and 7,8-benzoquinoline, and mutual validation of experiments and computational methods

November 18, 2009
Author(s)
Robert D. Chirico, Andrei F. Kazakov, William V. Steele
… (Chemical Abstracts registry number [66-71-7]) in the crystal, liquid, and ideal-gas state are reported. … Thermodynamic properties for phenanthridine [229-87-8] and 7,8-benzoquinoline [230-27-3] were reported previously and … 1, 10-phenanthroline, 7, 8-benzoquinoline, phenanthridine, heat capacity, vapor …

Mitochondrial Genome Deletion Aids in the Identification of Both False and True Negative Prostate Needle Core Biopsies

January 6, 2008
Author(s)
Jennifer Maki, Kerry Robinson, Brian Reguly, Jude Alexander, Roy Wittock, A A. Aguirre, Eleftherios Diamandis, Nicholas Escott, Anthony Skehan, Owen Prowse, Robert E. Thayer, Kent Froberg, Michael Wilson, Samantha D. Maragh, J P. Jakupciak, Paul D. Wagner, S Srivastava, Gabriel D. Dakubo, Ryan L. Parr
We report the utility of a 3.4kb mtgenome deletion (3.4mt?) for molecular definition of benign, malignant and proximal to malignant (PTM) needle biopsies. The 3.4mt_ was identified through long extension PCR analysis of frozen PCa samples. A quantitative

Development of a Standard Fire Condition for a Large Compartment Floor Assembly

October 22, 2019
Author(s)
Ana Sauca, Chao Zhang, William L. Grosshandler, Matthew Bundy, Lisa Choe
… of a test fire in a large compartment of about 10 m wide, 7 m deep and 3.8 m high constructed in the National Fire … were measured by twelve sheathed thermocouples placed 30.48 cm (12 in) below the ceiling. The measured average upper … relative error towards the end of the long test was around 7%. The design procedure for the test fire, measurements and …

Comparison of Multiple Methods for Obtaining PO Resistances with Low Uncertainties

September 3, 2019
Author(s)
Kwang Min Yu, Dean G. Jarrett, Albert Rigosi, Shamith Payagala, Marlin E. Kraft
Capabilities for high resistance determinations are essential for calibration of currents below 1 pA, as typically requested in several applications, including semiconductor device characterization, single electron transport, and ion beam technologies

Evolutionary Computation Approach to Heat Exchanger Design

June 26, 2010
Author(s)
David A. Yashar, Janusz Wojusiak, Kenneth Kaufman, Piotr A. Domanski
The efficiency of a vapor compression system is strongly influenced by the performance of the finned-tube heat exchangers it employs. Heat exchanger performance is strongly influenced by the refrigerant circuitry, i.e., the connection sequence of the tubes
Displaying 251 - 275 of 473
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