helical element

См. также в других словарях:

• Helical antenna — Helical antennas can operate in one of two principal modes: normal (broadside) mode or axial (or endfire) mode.In the normal mode , the dimensions of the helix are small compared with the wavelength. The far field radiation pattern is similar to… …   Wikipedia

• helical antenna — An antenna used where circular polarization is required. The driven element consists of a helix supported above a ground plane. Pole mounted helical beam antenna of 8 turns with pitch angle of 12.5° …   Aviation dictionary

• Distributed element filter — Figure 1. A circuit featuring many of the f …   Wikipedia

• DNA unwinding element — A DNA unwinding element, frequently abbreviated to DUE and on occasion DNAUE, is an enzyme complex that can be found during DNA synthesis at the origin of replication and is the initiation site for the opening of the double helix structure.[1] It …   Wikipedia

• Type II topoisomerase — Type II topoisomerases cut both strands of the DNA helix simultaneously in order to change the linking number of the molecule. FunctionOnce cut, the ends of the DNA are separated, and a second DNA duplex is passed through the break. Following… …   Wikipedia

• шаг повива в кабеле — — [Я.Н.Лугинский, М.С.Фези Жилинская, Ю.С.Кабиров. Англо русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.] Тематики электротехника, основные понятия EN helical element of cable lay …   Справочник технического переводчика

• Spring (device) — Helical or coil springs designed for tension Compression sp …   Wikipedia

• List of gear nomenclature — Gears have a wide range of unique terminology known as gear nomenclature. Many of the terms defined cite the same reference work.[1] Contents 1 Addendum 2 Addendum angle 3 Addendum circle …   Wikipedia

• Otoplasty — Otoplasty: the pre operative front aspect (left), and the post operative front aspect (right) of an infantile otopexy (ear pinback) correction to a girl. Otoplasty (Greek ōtoûs, ear + plassein, to shape) denotes the surgical and non surgical… …   Wikipedia

• Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …   Wikipedia

• PHOTOGRAPHIE — La perception de l’apparence du monde matériel par notre organe visuel a comme support la lumière visible ou les autres radiations électromagnétiques, rendues visibles par l’intermédiaire de phénomènes auxiliaires. L’emploi direct de l’ensemble… …   Encyclopédie Universelle