- circulation theory
- 環流理論
English-Chinese dictionary. 2013.
circulation theory
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closed-open circulation theory — the theory that both an open and a closed circulation are present in the spleen; e.g., a closed circulation in a contracted spleen may become an open circulation when the organ is distended. Cf. closed circulation t. and open circulation t … Medical dictionary
closed circulation theory — one of the theories explaining how the blood in the spleen gets from the arteries to the venous sinuses; it holds that the capillaries empty directly into the venous sinuses. Cf. open circulation t. and closed open circulation t. Called also fast … Medical dictionary
open circulation theory — one of the theories explaining how the blood in the spleen gets from the arteries to the venous sinuses; it holds that the capillaries open directly into the pulp reticulum, and that the blood gradually filters back into the venous sinuses.… … Medical dictionary
fast circulation theory — closed circulation t … Medical dictionary
open-closed circulation theory — see closed open circulation t … Medical dictionary
slow circulation theory — open circulation t … Medical dictionary
Circulation (currency) — The social system in which we live has usually developed to the stage for money to be used as the medium for the exchange of goods and services. Hence the money is an important aspect of the general social or macroeconomics system. To better… … Wikipedia
Circulation of elite — The Circulation of elite is a theory of regime change described by Italian social scientist Vilfredo Pareto (1848–1923). Changes of regime, revolutions, and so on occur not when rulers are overthrown from below, but when one elite replaces… … Wikipedia
theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… … Medical dictionary
circulation of élites — See élite theory … Dictionary of sociology
Momentum theory — In fluid dynamics, the momentum theory or disk actuator theory is a theory describing a mathematical model of an ideal actuator disk, such as a propeller or helicopter rotor, by W.J.M. Rankine (1865), Alfred George Greenhill (1888) and R.E.… … Wikipedia
