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propeller twist

См. также в других словарях:

  • Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …   Wikipedia

  • propeller area — The total area of blades determined by integrating the total areas of elementary chord wise slices, as if the blades have no thickness. It is the same as the outline area of the blades with the twist removed …   Aviation dictionary

  • blade twist — i. The undesirable variation in pitch from root to tip caused by aerodynamic loading. ii. The twist built into a propeller or rotor blade. In the case of a propeller, it is to ensure that the pitch angle at the root is greater than the tip. In… …   Aviation dictionary

  • geometric twist — The variation along the span of the airfoil of the angle between the chord and a fixed datum. Propeller blades are designed with a twist (i.e., a higher angle at the hub than at the tip) to equalize the lift (thrust) distribution along the blade… …   Aviation dictionary

  • aerodynamic twist — Intentional variation of the angle of incidence of any aerodynamic surface from root to tip to obtain desired stalling characteristics or a lift distribution pattern. Aerodynamic twist on a propeller blade …   Aviation dictionary

  • Nucleic acid double helix — Double helix redirects here. For other uses, see Double helix (disambiguation). Two complementary regions of nucleic acid molecules will bind and form a double helical structure held together by base pairs. In molecular biology, the term double… …   Wikipedia

  • Mechanical properties of DNA — The mechanical properties of DNA, which are directly related to its structure, are a significant problem for cells. Every process which binds or reads DNA is able to use or modify the mechanical properties of DNA for purposes of recognition,… …   Wikipedia

  • Complex (chemistry) — The term complex in chemistry is usually used to describe molecules or ensembles formed by the combination of ligands and metal ions. Originally, a complex implied a reversible association of molecules, atoms, or ions through weak chemical bonds …   Wikipedia

  • Coordination complex — Cisplatin, PtCl2(NH3)2 A platinum atom with four ligands In chemistry, a coordination complex or metal complex, is an atom or ion (usually metallic), bonded to a surrounding array of molecules or anions, that are in turn known as ligands or… …   Wikipedia

  • Z-DNA — The Z DNA structure.Proteopedia Z DNA Z DNA is one of the many possible double helical structures of DNA. It is a left handed double helical structure in which the double helix winds to the left in a zig zag pattern (instead of to the right, like …   Wikipedia

  • Pseudomonas putida — Scientific classification Kingdom: Bacteria Phylum: Proteobacteria Class: Gamma Proteobacteria …   Wikipedia

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