upper frequency

См. также в других словарях:

• upper-frequency limit — viršutinė dažnių riba statusas T sritis fizika atitikmenys: angl. upper frequency limit vok. Frequenzgrenze, f rus. верхний частотный предел, m pranc. limite supérieure de fréquence, f …   Fizikos terminų žodynas

• Upper-atmospheric lightning — is an obsolete term that is no longer used by researchers to refer to a family of electrical breakdown phenomena that occurs well above the altitudes of normal lightning. Current usage favors Transient Luminous Event (TLE) to refer to one of the… …   Wikipedia

• Upper hybrid oscillation — An upper hybrid oscillation is a mode of oscillation of a magnetized plasma. It consists of a longitudinal motion of the electrons perpendicular to the magnetic field with the dispersion relation:omega^2 = omega {pe}^2 + omega {ce}^2 + 3 k^2 v… …   Wikipedia

• Frequency (statistics) — In statistics the frequency of an event i is the number ni of times the event occurred in the experiment or the study. These frequencies are often graphically represented in histograms. We speak of absolute frequencies, when the counts ni… …   Wikipedia

• Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia

• Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …   Wikipedia

• Frequency modulation synthesis — In audio and music frequency modulation synthesis (or FM synthesis) is a form of audio synthesis where the timbre of a simple waveform is changed by frequency modulating it with a modulating frequency that is also in the audio range, resulting in …   Wikipedia

• frequency — Synonyms and related words: AF, CPS, EHF, HF, Hz, MF, RF, SHF, UHF, VHF, VLF, amplitude, antinode, audio frequency, carrier frequency, crest, cycles, de Broglie wave, diffraction, electromagnetic radiation, electromagnetic wave, extremely high… …   Moby Thesaurus

• Frequency range — A frequency range or frequency band is a range of wave frequencies. It most often refers to either a range of frequencies in sound or a range of frequencies in electromagnetic radiation, which includes light and radio waves. Many radio devices… …   Wikipedia

• Frequency allocation — The electromagnetic spectrum is an aspect of the physical world which, like land, water, and air, is subject to usage limitations. Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a… …   Wikipedia

• Upper Rhine — The Upper Rhine ( de. Oberrhein) is the part of the Rhine that flows northbound after Basel, Switzerland, along the Rhine rift, and then westward to Bingen, Germany. The section is marked by Rhine kilometers 170 to 529 (the scale begins in… …   Wikipedia