hysteresis

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Related to Hysteresis loss: Hysteresis loop

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]

hysteresis

/hys·te·re·sis/ (his″tĕ-re´sis) [Gr.]
1. a time lag in the occurrence of two associated phenomena, as between cause and effect.
2. in cardiac pacemaker terminology, the number of pulses per minute below the programmed pacing rate that the heart must drop in order to cause initiation of pacing.

hysteresis

[his′tərē′sis]
Etymology: Gk, hysterein, to be late
1 a lagging or retardation of one of two associated phenomena or a failure to act in unison.
2 the influence of the previous condition or treatment of the body on its subsequent response to a given force, as in the elastic property of a lung. At any given lung volume the elastic recoil pressure within the airways during expiration is less than that which exists at the same lung volume during inspiration.

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]

hysteresis (histerē´sis),

n a physical phenomenon whereby a material such as a reversible hydrocolloid passes from a solid to a gel state at one temperature and a gel to a solid state at another.

hysteresis

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.
References in periodicals archive ?
For this particular study, since low bulk density and low hysteresis loss are the two most important targets, trial #8 in DOE 2 were selected as the optimal condition, which produced parts with the lowest bulk density (0.
Compared to a reference compound with N 220, the black and white filler blend results in a significantly reduced hysteresis loss (tan [delta], ball-rebound, heat build-up), while maintaining the high moduli and good DIN abrasion resistance (table 3).
As for the tread, special carbon blacks and silicas can be used to reduce the hysteresis loss of the different tire parts.
Table 5 demonstrates the possible redaction of hysteresis loss in a carcass formulation with EB 204.
Hysteresis loss and hysteresis loss ratio of all the samples were measured over a number of cycles, strain rates, and strain levels to investigate their behavior.
Logarithmic and Semi-Logarithmic Plots of Hysteresis loss and Hysteresis Loss Ratio Data
Our study in this section examines how the variations of strain rates, strain at constant stress and stress at constant strain influence the hysteresis loss behavior of natural rubber (NR) and styrene-butadiene rubber (SBR) gum and filled vulcanizates over a range of holding times [ILLUSTRATION FOR FIGURE 2 OMITTED].
Substituting Equation 31 into Equation 35 with a simplifying assumption (m = 1, n = 1) of nonlinear function of stress-strain rate and extension or retraction time, we find that the hysteresis loss for a complete cycle is
High strain hysteresis loss is defined as the energy dissipated in stretching, when the specimens were deformed to strain level greater than 100%.
The calculation of the hysteresis loss using Equation 36 would involve the measurement of [K.
We measured ice skid number and PTFE skid number of BPST to analyze each factors of effective contact area and hysteresis loss affecting the friction of a rubber compound on ice.
2] solution, ice skid number of BPST is proposed for the equations by complex modulus of the rubber compound and the thickness of liquid like layer on ice for the factors of effective contact area, and loss modulus of it for the factor of hysteresis loss.