- periodic log
- журнал периодического контроля
Большой англо-русский и русско-английский словарь. 2001.
Большой англо-русский и русско-английский словарь. 2001.
Log-periodic antenna — In telecommunication, a log periodic antenna (LP, also known as a log periodic array) is a broadband, multielement, unidirectional, narrow beam antenna that has impedance and radiation characteristics that are regularly repetitive as a… … Wikipedia
log-periodic antenna — logaritminio periodiškumo antena statusas T sritis radioelektronika atitikmenys: angl. logarithmic periodic antenna; log periodic antenna vok. logarithmisch periodische Antenne, f rus. логопериодическая антенна, f pranc. antenne logarithmique… … Radioelektronikos terminų žodynas
Almost periodic function — In mathematics, almost periodic functions are functions of a real number that are periodic up to a small error, first studied by Harald Bohr. There are generalizations to almost periodic functions on locally compact abelian groups. Almost… … Wikipedia
Antenne log-périodique — Une antenne log périodique est une antenne radioélectrique à large bande utilisée en TV terrestre, TNT, en télécommunications ou en mesure d antenne. Quoique plusieurs types d antenne peuvent avoir des propriétés log périodiques, comme l antenne… … Wikipédia en Français
logarithmic-periodic antenna — logaritminio periodiškumo antena statusas T sritis radioelektronika atitikmenys: angl. logarithmic periodic antenna; log periodic antenna vok. logarithmisch periodische Antenne, f rus. логопериодическая антенна, f pranc. antenne logarithmique… … Radioelektronikos terminų žodynas
Directional antenna — Log periodic dipole array A directional antenna or beam antenna is an antenna which radiates greater power in one or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources.… … Wikipedia
Convergence of Fourier series — In mathematics, the question of whether the Fourier series of a periodic function converges to the given function is researched by a field known as classical harmonic analysis, a branch of pure mathematics. Convergence is not necessarily a given… … Wikipedia
Compound interest — The effect of earning 20% annual interest on an initial $1,000 investment at various compounding frequencies Compound interest arises when interest is added to the principal, so that from that moment on, the interest that has been added also… … Wikipedia
Trigonometric functions — Cosine redirects here. For the similarity measure, see Cosine similarity. Trigonometry History Usage Functions Generalized Inverse functions … Wikipedia
Shortwave relay station — A shortwave relay station typically consists of a transmitter building (or transmitter hall) and one or more HRS type antennas. Some relay stations (that operate at 100 kW or less) that only serve a local region (within 1500 km) may use Log… … Wikipedia
Mandelbrot set — Initial image of a Mandelbrot set zoom sequence with a continuously coloured environment … Wikipedia