Results 81 to 90 of about 364,602 (244)
El projecte d’una universitat radiada a Barcelona a inicis del segle XX
Educació i Història: Revista d'Història de l'EducacióDurant els anys vint i trenta del segle XX, la Universitat de Barcelona va implementar una sèrie de reformes a la recerca de la modernització d’estructures i l’acostament a les necessitats d’una societat en procés de transformació.
Sara González Gómez +1 more
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Pergulatan di Balik Frekuensi: Studi Deskriptif Radio Komunitas di Jawa Tengah
Calathu, 2019 Studi ini secara spesifik mengambil tema radio komunitas. Secara umum, radio mengalami dinamika pasang surut karena berbagai persoalan yang dihadapinya. Secara khusus, radio komunitas juga mengalami persoalan yang selalu berkaitan dengan ciri-ciri khusus
Andreas Ryan Sanjaya, Andreas Pandiangan
doaj +1 more source
Spectrum sharing models in cognitive radio networks [PDF]
, 2011 Spectrum scarcity demands thinking new ways to manage the distribution of radio frequency bands so that its use is more effective. The emerging technology that can enable this paradigm shift is the cognitive radio.
Rifà Coma, Josep, Rifà Pous, Helena
core
Impact of Oxygen Plasma Pre‐Treatment on Thermal Oxidation and Reliability of SiO2 on 4H‐SiC
Advanced Materials Interfaces, EarlyView.We investigate how oxygen plasma pre‐treatment affects the thermal oxidation of silicon carbide. While plasma modification increases growth rates by 84%, it reduces dielectric breakdown strength by 18%. Our findings reveal that although plasma improves the interface state density, it introduces structural damage, highlighting a critical trade‐off ...
Chezhiyan Nanjappan +3 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.Plasma‐sequence‐engineered ALD (PSE‐ALD), based on sequential NH3 and N2 plasma pulses, enables ultrathin, dense SiNx films. ToF‐MS analysis confirms ligand removal via HCl evolution, while increased film density indicates network densification. The resulting SiNx coating provides robust protection of graphite under H2 plasma exposure.
Hye‐Young Kim +7 more
wiley +1 more source
Физика волновых процессов и радиотехнические системы, 2013 The potentially obtainable direction-finding pattern characteristics with using of the Keipons algorithm for linear antenna array are analyzed in the article.
B.P. Borisov +3 more
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Advanced Materials Interfaces, EarlyView.Atmospheric‐pressure RF plasma deposition enables the fabrication of transparent, superhydrophobic coatings with anti‐reflective functionality. Process optimization yields high optical transmittance, robust environmental stability, and self‐cleaning properties.
Sultan S. Ussenkhan +7 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes +4 more
wiley +1 more source
Radio Direction Finding in Air Traffic Services
Promet (Zagreb), 2005 The paper analyses the Radio Direction Finding principlefor navigation and swveillance system. Radio Direction Findinginvolves locating the bearing of a transmitter called a radiobeacon.
Andrej Novak
doaj +1 more source