Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Ali El-Hajj"'
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
A cognitive transceiver is required to opportunistically use vacant spectrum resources licensed to primary users. Thus, it relies on a complete adaptive behavior composed of: reconfigurable radio frequency (RF) parts, enhanced spectrum sensing algori
Externí odkaz:
https://doaj.org/article/68cd6222e32b4637a5230a5c05bd2cce
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
Externí odkaz:
https://doaj.org/article/2daf90a06f654da9953925a14581abb4
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
Spectrum scarcity has emerged as a primary problem in the communications technology. The combination of cognitive radio (CR) and ultra-wideband impulse radio (UWB-IR) has been proposed to solve the shortage problem by allowing smart and adaptive spec
Externí odkaz:
https://doaj.org/article/b07607f4bbb641f5b5dac15b6c6510c4
Publikováno v:
Spreadsheets in Education, Vol 1, Iss 2 (2004)
In this paper, a method for simulating nonlinear control systems using spreadsheets is presented. Various nonlinear blocks are simulated using graphics and cell formulas, and are generated by clicking on specially developed toolbar buttons. These blo
Externí odkaz:
https://doaj.org/article/92198eee80324c2ead7d6e6ef6fdd8ae
Publikováno v:
Spreadsheets in Education, Vol 1, Iss 3 (2004)
This paper presents a method for obtaining numerical approximation to solutions of systems of nonlinear differential equations of one variable using spreadsheets. This solution method is simply based on effecting an integration formula in a block. Th
Externí odkaz:
https://doaj.org/article/603e4253034b4072b787d52ffa21edd5
Akademický článek
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Autor:
Ali El Hajj-Hassan, Peter Ferguson
Publikováno v:
Socialist Studies/Études Socialistes. 16
In 1970 Giovanni Sartori articulated what he saw as the greatest challenge to political science in an increasingly globalized worldconceptual stretching. Sartori was referring to the traveling of western concepts eastward and proposed the use of a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aafb0889899f4f2db99f6a4ea4ff979
https://doi.org/10.18740/ss27270
https://doi.org/10.18740/ss27270
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::743dbf43fff812d5fef138a9eb1c1cef
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886591
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886591
Akademický článek
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Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 70:1-10
This article presents a new method for the calculation of the dielectric constant of low-loss materials having a thickness of more than half a wavelength in the sample. The proposed method relies solely on the frequency values at which the reflection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21db2c971606a0c06951480dbb8466a3
https://doi.org/10.1109/tim.2020.3011765
https://doi.org/10.1109/tim.2020.3011765