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of 33
pro vyhledávání: '"Jake S. Bobowski"'
Autor:
Jake S. Bobowski, Naoki Kikugawa, Takuto Miyoshi, Haruki Suwa, Han-shu Xu, Shingo Yonezawa, Dmitry A. Sokolov, Andrew P. Mackenzie, Yoshiteru Maeno
Publikováno v:
Condensed Matter, Vol 4, Iss 1, p 6 (2019)
High-quality single crystals are essentially needed for the investigation of the novel bulk properties of unconventional superconductors. The availability of such crystals grown by the floating-zone method has helped to unveil the unconventional supe
Externí odkaz:
https://doaj.org/article/1636797946994a098f9f0938852db137
Autor:
Jake S. Bobowski
Publikováno v:
The Physics Teacher. 59:560-565
Due to the COVID-19 outbreak, academic institutions across the globe have been forced to move to online learning environments. It has been particularly challenging for the experimental sciences to develop and deliver authentic lab-based experiences.
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:3510-3527
We describe efficient four-coil inductive power transfer (IPT) systems that operate at 100 MHz. The magnetically-coupled transmitter and receiver were made from electrically-small and high-Q loop-gap resonators (LGRs). In contrast to the commonly-use
Autor:
Jake S. Bobowski
Publikováno v:
American Journal of Physics. 89:96-104
We describe a simple method to experimentally determine the frequency dependencies of the per-unit-length resistance and conductance of transmission lines. The experiment is intended as a supplement to the classic measurement of the transient respons
Publikováno v:
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA).
We investigated inductive power transfer (IPT) through a rectangular slab of saltwater. Our inductively-coupled transmitters and receivers were made from loop-gap resonators (LGRs) having resonant frequencies near 100 MHz. Electric fields are confine
Autor:
Naoki Kikugawa, Clifford W. Hicks, Dmitry A. Sokolov, Felix Brückner, Vadim Grinenko, A. M. Nikitin, Hans-Henning Klauss, Shreenanda Ghosh, Hubertus Luetkens, Takuto Miyoshi, Yoshiteru Maeno, J. C. Orain, Debarchan Das, Andrew P. Mackenzie, Rajib Sarkar, Jake S. Bobowski, M. Elender, Mark E. Barber, Zurab Guguchia, Joonbum Park
Publikováno v:
Nature Physics
This work has been financially supported by the Deutsche Forschungsgemeinschaft (GR 4667/1, GRK 1621 and SFB 1143 projects C02 and C09) and the Max Planck Society. Y.M., T.M. and J.S.B. acknowledge the financial support of JSPS Kakenhi (JP15H5852, JP
Autor:
Jake S. Bobowski, Thomas Johnson
We previously reported on the complex permittivity and dc conductivity of waste-activated sludge. The measurements, spanning a frequency range of 3 MHz to 40 GHz, were made using an open-ended coaxial transmission line. Although this technique is wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5032f8e5fb93a43169145c12a2dc3566
http://arxiv.org/abs/2007.07343
http://arxiv.org/abs/2007.07343
The complex permittivity of thickened waste activated sludge (WAS) was measured from 3 MHz to 40 GHz. The solid content of the thickened WAS sample was varied from 4.5% to 18% by weight. The permittivity spectra exhibit features typical of biological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11d503d8b8f54404f69b3db54752c15b
Autor:
Jake S. Bobowski, Sabrina L. Madsen
We have measured the relative permeability of split-ring resonator (SRR) arrays used in metamaterials designed to have $��^\prime< 0$ over a narrow range of microwave frequencies. The SRR arrays were loaded into the bore of a loop-gap resonator (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7561f669e9183d714d5578071e712e76