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32 results on '"Myers, W. K."'

1. The spin resonance clock transition of the endohedral fullerene $^{15}\mathrm{N@C}_{60}$

Author

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K., and Laird, E. A.

Subjects
Physics - Applied Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Instrumentation and Detectors
Abstract

The endohedral fullerene $^{15}\mathrm{N@C}_{60}$ has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock's projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks., Comment: 6 pages, 5 figures. Supplementary information: 2 pages, 1 figure

Published
2017
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2. Spin resonance clock transition of the endohedral fullerene N15@C60

Author

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K., and Laird, E. A.

Subjects
Computer Science::Hardware Architecture, TA, Physics::Atomic and Molecular Clusters, QC
Abstract

The endohedral fullerene 15N@C60 has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock’s projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

Published
2017

3. Spin Resonance Clock Transition of the Endohedral Fullerene 15N@C60

Author

Harding, R. T., Zhou, S., Zhou, J., Lindvall, Thomas, Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K., and Laird, E. A.

Subjects
Computer Science::Hardware Architecture, atomic clock, electron spin resonance, endohedral fullerene
Abstract

The endohedral fullerene 15N@C60 has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock's projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

Published
2017
Full Text
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4. The spin resonance clock transition of the endohedral fullerene 15N@C60

Author

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A, Briggs, G A D, Porfyrakis, K, Laird, E A, Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A, Briggs, G A D, Porfyrakis, K, and Laird, E A

Abstract

The endohedral fullerene 15N@C60 has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock’s projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

Published
2017

7. Interactions of Plutonium (V) and Plutonium (VI) with Manganese Dioxide, Iron Oxide, and Sediments from the Hanford Site.

Author

Stout, S. A., Reilly, S. D., Smith, D. M., Myers, W. K., Ginder-Vogel, M. A., Skanthakumar, S., Soderholm, L., and Neu, M. P.

Subjects
ANALYTICAL geochemistry, ACTINIDE elements, MINERALS, POLLUTION, HANFORD Site (Wash.)
Abstract

In order to make accurate predictions about the fate of actinides released into the environment and to implement effective remediation strategies, fundamental studies are needed to understand the complex geochemical interactions occurring between actinides and mineral surfaces. Minerals having strong redox potentials, such as Fe and Mn oxides and oxyhydroxides, are of special interest because they are likely to influence the complex redox chemistry of Pu under groundwater conditions. Thus, the interactions of Pu(V) and Pu(VI) with the following redox active synthetic mineral phases were studied: 100% δ-MnO[sub2], 50% δ-MnO[sub2];50% α-FeOOH, and 10% δ-MnO[sub2];90% α-FeOOH (w/w). Electron microscopy data show that the δ-MnO[sub2] phases effectively coat the α-FeOOH. The binding of Pu(V) and P(VI) to sediments from the Upper Ringold Formation near the DOE Hanford Site were also investigated. Solution concentrations in the range of 1 x 10[sup-5] M to 4 x 10[sub-4] M Pu were used to minimize hydrolysis, and the pH of the final mineral suspensions was adjusted between 0.5 and 10. [ABSTRACT FROM AUTHOR]

Published
2003

8. An Adobe Walls Defender.

Author

Myers, W. K. and Cozzens, Peter

Abstract

This article presents an excerpt narrating the story of the author, who was one of the defenders of the Adobe Walls Site in Texas, published in the June 13, 1934 issue of Chase County Leader. On the morning of the attack on Adobe Walls, the author, who had slept outside of the building with many others and had arisen early, was getting breakfast for his party. One or two other men had gone out from the camp to round up the horses, and the first he knew of the attack was the sound of a pistol shot, given as a warning by one man who went after the horses. The man was tiding at breakneck speed ahead of the Indians. The author, with the others, rushed inside the stockade. There were, however, two men who were not awakened by the noise. They were sleeping in a wagon, and these men were killed, and later their bodies were found in the remains of the wagon, which had been burned. A large dog which these men had with them in the wagon was scalped by the Indians.

Published
2003

13. CASE FOR DIAGNOSIS.

Author

Myers, W. K.

Abstract

The article presents a case study for diagnosis of a patient who had a painful lesion of the skin of the right breast present for several years. Examination of the patient's skin showed an irregular pulpy, deep red-brown lesion of the outer lower right breast. Some superficial scarring was present in one part. "Apple-jelly" nodules were visible on diascopy. Microscopic examination of the skin showed that the skin epidermis is somewhat thinned with no other significant change, except a sufficient increase in the keratin layer to produce a scaly surface.

Published
1953

16. MULTIPLE SKIN CARCINOMATA WITH PUNCTATE KERATOSES OF PALMS AND SOLES.

Author

Myers, W. K.

Abstract

The article presents a case study of a patient suffering from multiple skin carcinomata. The history reveals the appearance of multiple basal-celled carcinomata of face, forehead and scalp. The patient had radiotherapy for similar lesions for some years previously. Recurrences and new lesions were treated at intervals. The patient was enquired regarding possible arsenical medication. Examination of the patient's skin showed scattered nodules of basal-X-ray scars and one basal-celled nodule on the back. Warty keratodermia of the palms and soles was present.

Published
1953

17. Spin Resonance Clock Transition of the Endohedral Fullerene 15N@C60.

Author

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K., and Laird, E. A.

Subjects
*FULLERENES, *RESONANCE, *ELECTRONS
Abstract

The endohedral fullerene 15N@C60 has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock's projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks. [ABSTRACT FROM AUTHOR]

Published
2017
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18. Frank Dudley Smith.

Author

Colvin CS, Rawle KC, Hurman EM, and Myers WK

Subjects
Australia, General Surgery history, History of Medicine
Published
1976
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21. Gout.

Author

MYERS WK

Subjects
Humans, Gout
Published
1948

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