Abstract: Smith-Purcell radiation (SPR), which occurs when electrons traverse a diffraction grating, is a promising candidate for tunable terahertz sources. Recent advancements in enhancing ...
POLAND: PKP Intercity has formally signed contracts for Alstom to supply 42 Coradia Max partly double-deck 200 km/h electric multiple-units for 4·1bn złoty and provide 30 years of full-service ...
If you subscribe to Amazon Prime, you get numerous hidden Prime perks aside from faster shipping times. For those who play a lot of video games, one of the best Prime features comes in the form of the ...
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