Results 71 to 80 of about 6,091 (233)
Mergers, Station Entry, and Programming Variety in Radio Broadcasting [PDF]
Free entry into markets with decreasing average costs and differentiated products can result in an inefficient number of firms and suboptimal product variety.
Joel Waldfogel, Steven T. Berry
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High resolution observations of spectral width features associated with ULF wave signatures in artificial HF radar backscatter [PDF]
, 2004 International audienceThe EISCAT high power heating facility at Tromsø, northern Norway, has been utilised to generate artificial radar backscatter in the fields of view of the CUTLASS HF radars.
Woodfield, E.E. +30 more
core +1 more source
Advanced Energy Materials, EarlyView.P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar +16 more
wiley +1 more source
Geração e distribuição de sinais ROF
, 2010 Mestrado em Engenharia Electrónica e TelecomunicaçõesO trabalho apresentado nesta dissertação incidiu no estudo de técnicas de geração e distribuição de sinais rádio sobre fibra (RoF).
Gonçalves, Gabriel
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Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories
Advanced Energy Materials, EarlyView.In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen +4 more
wiley +1 more source
REAL-TIME FADE MITIGATION USING RADIOMETRIC MEASUREMENTS FOR FUTURE KA-BAND SERVICES AT DLR.
, 2009 Due to the congestion of popular C- and Ku-band frequencies, the satellite communication systems are rapidly moving toward the higher frequencies. Most of the commercial communication satellites in the near future will operate Ka-band transponders.
Gataullin, Yunir
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Strahlung von Sendeanlagen und Gesundheit : Bewertung von wissenschaftlichen Studien im Niedrigdosisbereich (Stand: Dezember 2012) [PDF]
, 2013 This report updates the assessment of the health effects of high-frequency radiation based on newly published studies on human beings in the period from October 2006 to December 2012.
Hug, K., Röösli, M.
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Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit
Contributions to Plasma Physics, EarlyView.ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik +3 more
wiley +1 more source
Capital Radio The Station with An Afritude
, 1993 Item located in hy-dm-docs-1957-2015-001The brochure pertains to the new independent radio station said to be launched on the 1st of July 1993 in the new South Africa.
Capital Radio
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Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source