Rigorous experimental estimation of antenna efficiency is challenging and so the simplicity of the fixed-geometry Wheeler cap method has made it an attractive low-cost option. Although experimental ...
It starts with a question no gunner can answer in the moment: how many shells will it take to bring down that one-aircraft—a hundred, a thousand, or tens of thousands? The truth, learned the hard way ...
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Abstract: Recent progress in reducing the loss of hollow-core fibres (HCFs) makes them great candidates for many fibre applications. However, as the fibre's optical properties depend on the gas ...
Four states—Alabama, Louisiana, Massachusetts, and Mississippi—have shown that adopting more rigorous literacy standards and scientific approaches to reading instruction can help reverse the decline ...
The Nation's Report Card shows progress in reading and math is still elusive for U.S. students, and the gap keeps growing. Oz: coming spike in ACA premium payments ‘not the big issue’ Trump Says He’s ...
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