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| | Practical Mono (Expert's Voice in Open Source)I’ve been involved in the information technology industry for more than 18 years, and I’ve seen many technologies come and go. However, having tackled and survived various approaches to systems architecture and the multitude of language and technologies that are out there, nothing excites me more than .NET and open... | | Electrically Small, Superdirective, and Superconducting AntennasHarold Wheeler, in his classic 1947 papers, created the fi eld of electrically small antennas. This fi eld has long been important for frequencies below roughly 1 GHz, where a half-wavelength is about 6 inches. These electrically small antennas have characteristics in common that limit performance: low radiation resistance, high reactance, low effi... |
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