During World War II, a tremendous amount of time and effort were put into researching high-speed rocket-powered aircraft, predominantly by the Germans.[citation needed] After the war, the US and UK took in several German scientists and acquired various military technologies through Operation Paperclip, including technology surrounding rocket engines. The Bell X-1 attained supersonic flight in 1947 and, by the early 1960s, rapid progress towards faster aircraft suggested that operational aircraft would be flying at "hypersonic" speeds within a few years. Except for specialized rocket research vehicles like the North American X-15 and other rocket-powered spacecraft, aircraft top speeds have remained level, generally in the range of Mach 1 to Mach 3.In the 1950s and 1960s, a variety of experimental scramjet engines were built and ground tested in the US and the UK. In 1958, an analytical paper discussed the merits and disadvantages of supersonic combustion ramjets.[2] In 1964, Drs. Frederick S. Billig and Gordon L. Dugger submitted a patent application for a supersonic combustion ramjet based on Billig's Ph.D. thesis. This patent was issued in 1981 following the removal of an order of secrecy.[3]
Research Article: Biosensors & Bioelectronics
Research Article: Biosensors & Bioelectronics
Editorial: Biosensors & Bioelectronics
Editorial: Biosensors & Bioelectronics
Editorial: Biosensors & Bioelectronics
Editorial: Biosensors & Bioelectronics
Research Article: Biosensors & Bioelectronics
Research Article: Biosensors & Bioelectronics
Research Article: Biosensors & Bioelectronics
Research Article: Biosensors & Bioelectronics
Scientific Tracks Abstracts: Biosensors & Bioelectronics
Scientific Tracks Abstracts: Biosensors & Bioelectronics
Posters & Accepted Abstracts: International Journal of Sensor Networks and Data Communications
Posters & Accepted Abstracts: International Journal of Sensor Networks and Data Communications
Scientific Tracks Abstracts: Journal of Material Sciences & Engineering
Scientific Tracks Abstracts: Journal of Material Sciences & Engineering
Posters-Accepted Abstracts: Journal of Material Sciences & Engineering
Posters-Accepted Abstracts: Journal of Material Sciences & Engineering
Scientific Tracks Abstracts: Journal of Material Sciences & Engineering
Scientific Tracks Abstracts: Journal of Material Sciences & Engineering
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