Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Adham Naji"'
Autor:
Adham Naji, Gennady Stupakov
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 12, p 123501 (2022)
Highly overmoded iris-line structures carry desirable features for the efficient transportation of THz radiation over long distances. Previous studies have analyzed the iris line, modeled approximately as a long open-resonator structure with thin scr
Externí odkaz:
https://doaj.org/article/4cbf4accdd9046ddb082a52c14e0ad8a
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 043501 (2022)
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a medium of transportation for THz radiation. The axisymmetric structure is capable of supporting hybrid modes with desirable features such as low propagati
Externí odkaz:
https://doaj.org/article/0487a13540ea458380bba174f044511f
Autor:
Alexander C. D. Royal, Phil R. Atkins, Michael J. Brennan, David N. Chapman, Huanhuan Chen, Anthony G. Cohn, Kae Y. Foo, Kevin F. Goddard, Russell Hayes, Tong Hao, Paul L. Lewin, Nicole Metje, Jen M. Muggleton, Adham Naji, Giovanni Orlando, Steve R. Pennock, Miles A. Redfern, Adrian J. Saul, Steve G. Swingler, Ping Wang, Christopher D. F. Rogers
Publikováno v:
International Journal of Geophysics, Vol 2011 (2011)
The successful operation of buried infrastructure within urban environments is fundamental to the conservation of modern living standards. Open-cut methods are predominantly used, in preference to trenchless technology, to effect a repair, replace or
Externí odkaz:
https://doaj.org/article/6074004fa3f24d8f95e8eb319bb06cbe
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49994b4bf6863982e2e3d8d7ebb98b0e
https://doi.org/10.1109/irmmw-thz50927.2022.9895550
https://doi.org/10.1109/irmmw-thz50927.2022.9895550
Autor:
Gennady Stupakov, Adham Naji
Highly overmoded iris-line structures carry desirable features for the efficient transportation of THz radiation over long distances. Previous studies have analyzed the iris line, modeled approximately as a long open-resonator structure with thin scr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::073cd2c40a03f5e2189a0aae1f0ef32f
Field Analysis for a Highly-Overmoded Iris Line, with Application to THz Radiation Transport at LCLS
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a medium of transportation for THz radiation. The axisymmetric structure is capable of supporting hybrid modes with desirable features such as low propagati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c613171c6013efefa7b4b61749f3b76
Autor:
Sami Tantawi, Adham Naji
A new variational theory is presented for beam loading in microwave cavities. The beam--field interaction is formulated as a dynamical interaction whose stationarity according to Hamilton's principle will naturally lead to steady-state solutions that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac4096de8bb42307ad110b2db6a61c14
Autor:
Paul A Warr, Adham Naji
Publikováno v:
Naji, A & Warr, P A 2019, ' Publisher Correction : Geometrical Perturbation Techniques and Approximate Analysis for Eigenmode Splitting and Shifting in Electromagnetic Planar Dual-Mode Resonators ', Scientific Reports, vol. 9, 13268 (2019) . https://doi.org/10.1038/s41598-019-49268-w
Scientific Reports, Vol 9, Iss 1, Pp 1-3 (2019)
Scientific Reports, Vol 9, Iss 1, Pp 1-3 (2019)
This Article contains errors in two of the Figures. In Figure 2, the shapes in the first row (a-d) are incorrectly all shown as the same shape. In Figure 8, there is a pixel-shift distortion of the graphics. The correct Figures 2 and 8 appear below a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a518626c61038666f1c76ebbc58f2d
https://research-information.bris.ac.uk/ws/files/212193869/s41598_019_49268_w.pdf
https://research-information.bris.ac.uk/ws/files/212193869/s41598_019_49268_w.pdf
Autor:
Kenneth Lee Ford, Richard J. Langley, Adham Naji, Mohammad Reza Anbiyaei, Timothy O'Farrell, Sajid M. Asif
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
A low-profile tri-band slot antenna with enhanced tuning range is presented in this paper. Tri-band frequency agility is obtained using three varactor-loaded slots on a planar structure. The tuning range of the proposed antenna is enhanced by suppres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f471f66f328d713d6790a4e12d513d1
https://doi.org/10.1109/apusncursinrsm.2019.8888898
https://doi.org/10.1109/apusncursinrsm.2019.8888898
Autor:
Adham Naji, Kenneth Lee Ford, Sajid M. Asif, Mohammad Reza Anbiyaei, Timothy O'Farrell, Richard J. Langley
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
A low-profile quad-band loaded-slot antenna with independently controllable frequency bands is presented in this paper. Four slots are carefully designed to generate four separate frequency resonances, which were independently tuned by employing vara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54c9898d7a9f08e5fedc20757f2d9ca2
https://doi.org/10.1109/apusncursinrsm.2019.8888322
https://doi.org/10.1109/apusncursinrsm.2019.8888322