Výsledky vyhledávání - "James A. Bickford"

Performance of Electrically Small Conventional and Mechanical Antennas

Autor: Ronald S. McNabb, Amy Duwel, Daniel K. Freeman, Marc S. Weinberg, Paul A. Ward, James A. Bickford

Publikováno v: IEEE Transactions on Antennas and Propagation. 67:2209-2223

Antennas that operate in the very low frequency (LF) band and below are useful for a number of applications, including long-distance and underwater communication. When constrained in size, the antennas are electrically small and very inefficient. Thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::020937ee1fdf0aa8f3fcc7c7695bf4a8
https://doi.org/10.1109/tap.2019.2893329

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Low frequency mechanical antennas: Electrically short transmitters from mechanically-actuated dielectrics

Autor: Ronald S. McNabb, Daniel K. Freeman, Paul A. Ward, Marc S. Weinberg, James A. Bickford

Publikováno v: 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

Antennas that operate in the low-frequency (LF) band and below are useful for a number of applications. However, the long wavelengths result in very low efficiency for antennas that could be made portable. This has motivated the need for novel approa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a534f97dc9267807d37ffd8f762a7f43
https://doi.org/10.1109/apusncursinrsm.2017.8072780

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Technology for Early Braille Literacy: Comparison of Traditional Braille Instruction and Instruction with an Electronic Notetaker

Autor: James O. Bickford, Ruth A. Falco

Publikováno v: Journal of Visual Impairment & Blindness. 106:679-693

Introduction The study reported here evaluated whether there was a difference in students’ outcomes for braille fluency when instruction was provided with traditional braille media or refreshable braille. Students’ and teachers’ perceptions of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a309c00322e782a174c27daf7cb81210
https://doi.org/10.1177/0145482x1210601012

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