hysteresis

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Related to Hysteresis loop: Hysteresis loss

hysteresis

 [his-tĕ-re´sis]
1. the failure of coincidence of two associated phenomena, such as that exhibited in the differing temperatures of gelation and of liquefaction of a reversible colloid.
2. a phenomenon exhibited by a physical system in which the system's response to an outside influence depends not only on the instantaneous magnitude of the influence but also on the system's previous history, as when a material undergoing cyclical loading exhibits a loss of energy between cycles of loading and unloading.
3. in cardiac pacing terminology, the number of pulses per minute below the programmed pacing rate that the heart must drop in order to cause initiation of pacing; it can be programmed in by a pulse generator.

hys·ter·e·sis

(his'ter-ē'sis),
1. Failure of either one of two related phenomena to keep pace with the other; or any situation in which the value of one depends on whether the other has been increasing or decreasing.
2. The lag of a magnetic effect behind its cause. Synonym(s): magnetic inertia
3. The temperature differential that exists when a substance, such as reversible hydrocolloid, melts at one temperature and solidifies at another.
4. The basis of a type of cooperativity observed in many enzyme-catalyzed reactions in which the degree of cooperativity is associated with a slow conformational change of the enzyme. Compare: allosterism, cooperativity.
5. The nonlinear nature of the pressure-volume curve of the lung in which transpulmonary pressure at a given volume during inflation is less than the transpulmonary pressure at the same volume during exhalation.
[G. hysterēsis, a coming later]

hys·ter·e·sis

(his'tĕr-ē'sis)
1. Failure of either one of two related phenomena to keep pace with the other; or any situation in which the value of one depends on whether the other has been increasing or decreasing.
2. The lag of a magnetic effect behind its cause.
3. The temperature differential that exists when a substance melts at one temperature and solidifies at another.
4. A type of cooperativity in enzyme-catalyzed reactions in which the degree of cooperativity is associated with a slow conformational change of the enzyme.
Compare: allosterism
[G. hysterēsis, a coming later]

hys·ter·e·sis

(his'tĕr-ē'sis)
Failure of either one of two related phenomena to keep pace with the other; or any situation in which the value of one depends on whether the other has been increasing or decreasing.
[G. hysterēsis, a coming later]
References in periodicals archive ?
Such difference has been made intentionally by designing the hysteresis loop with selection of parameters as [[kappa].sub.x] = 0.01, [[kappa].sub.[omega]] = 1, [sigma] = 0.1, n = 1, and [k.sub.u] = 0.1.
The experimentally determined relationships between normalized stiffness [K.sub.i]/[K.sub.e] and corresponding normalized displacement amplitude [[delta].sub.i] /[[delta].sub.e] for all hysteresis loops and specimens are presented in Figure 8 as red cross-points.
Using the Bouc-Wen equation for different values of loop parameters and imposed cyclic loading, typical shapes of hysteresis loops are obtained.
The hysteresis loops of all foams tested showed an increase in dynamic modulus and a shift to higher strain as the number of cycles accumulated which was explained as a result of the inability of these materials to recover from the deformation in the time scale available between cycles;
The curves for the AnIR gloves show only a small crystallization induced hysteresis loop. Furthermore, this loop only becomes visible at higher elongations as compared to other materials.
Hysteresis loop of connection between steel side plates and horizontal member is presented in Figure 3.b where it is clearly seen that pretension in bolts increases the joint resistance at zero rotation points.
And the hysteresis loops are all similar to H3 type in IUPAC classification.
A low cycle failure of the coupler complex occurs because of accumulated fatigue damage caused by the elastic-plastic hysteresis loop and by quasi-static damage affected by accumulated plastic strain in tension direction.
9:30 HYSTERESIS LOOP AREA OF THE KINETIC ISING MODEL WITH NEXT-NEAREST NEIGHBOR INTERACTION, William D.
The whole plant possesses nonlinear behavior because of the hysteresis loop determining the relationship between the input voltage and the rotation speed of the engine (Roubal, 2007).
He detailed the variations that occur when using a rheometer hysteresis loop to indicate thixotropic behavior, compared with a rheometer using a three-speed step technique.
Secondly, loading to 0.6% strain and unloading produces not only a small hysteresis loop, but also a residual strain (of 0.03%).