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  2. Sparse Fourier transform - Wikipedia

    en.wikipedia.org/wiki/Sparse_Fourier_transform

    The sparse Fourier transform (SFT) is a kind of discrete Fourier transform (DFT) for handling big data signals. Specifically, it is used in GPS synchronization, spectrum sensing and analog-to-digital converters.: [1] The fast Fourier transform (FFT) plays an indispensable role on many scientific domains, especially on signal processing.

  3. Rolling blackout - Wikipedia

    en.wikipedia.org/wiki/Rolling_blackout

    A room during load shedding at night in West Bengal, India. A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region.

  4. Skellefteå Airport - Wikipedia

    en.wikipedia.org/wiki/Skellefteå_Airport

    Skellefteå Airport (IATA: SFT, ICAO: ESNS), is located about 17 km from Skellefteå, Västerbotten, Sweden. Skellefteå Airport is ranked as one of ten largest airports in Sweden in terms of domestic flights.

  5. Shutdown (nuclear reactor) - Wikipedia

    en.wikipedia.org/wiki/Shutdown_(nuclear_reactor)

    Shutdown is the state of a nuclear reactor when the fission reaction is slowed significantly or halted completely. Different nuclear reactor designs have different definitions for what "shutdown" means, but it typically means that the reactor is not producing a measurable amount of electricity or heat and is in a stable condition with very low reactivity.

  6. Short-time Fourier transform - Wikipedia

    en.wikipedia.org/wiki/Short-time_Fourier_transform

    Simply, in the continuous-time case, the function to be transformed is multiplied by a window function which is nonzero for only a short period of time. The Fourier transform (a one-dimensional function) of the resulting signal is taken, then the window is slid along the time axis until the end resulting in a two-dimensional representation of the signal.

  7. Why do we work 9 to 5? The history of the eight-hour workday

    www.aol.com/why-9-5-history-eight-105902493.html

    Hunnicutt’s book, “Kellogg’s Six-Hour Day,” tells the story of how cereal baron W.K. Kellogg decided in 1930 to institute six-hour shifts in place of eight-hour shifts, with some reduction ...

  8. Internet outage - Wikipedia

    en.wikipedia.org/wiki/Internet_outage

    On June 21, the Internet in Burma was shut down by the government. The Burmese government shut down the internet connection in nine townships of the northern Arakan State and one single township in the Southern Chin State, which was proposed by Burmese Military officers. The shutdown is ongoing, and has become the world's longest internet shutdown.

  9. SFT - Wikipedia

    en.wikipedia.org/wiki/SFT

    SFT is an initialism that could refer to: Sabrina Frederick-Traub (born 1996), Australian rules footballer nicknamed SFT; Schema therapy; Scottish Futures Trust; Search For Technosignature; Skellefteå Airport (IATA: SFT), Sweden; Solitary fibrous tumor, a rare mesenchymal tumor; Sparse Fourier transform