threshold

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threshold

1. Psychol the strength at which a stimulus is just perceived
2. 
a. the minimum intensity or value of a signal, etc., that will produce a response or specified effect
b. (as modifier): a threshold current

Threshold

A strip fastened to the floor beneath a door, to cover the joint where two types of floor materials meet or to provide weather protection.

What does it mean when you dream about a threshold?

A threshold is a symbol for passing from one state or condition to the next, indicating a transition in some aspect of the dreamer’s life.

threshold

[′thresh‚hōld]
(building construction)
A piece of stone, wood, or metal that lies under an outside door.
(electronics)
In a modulation system, the smallest value of carrier-to-noise ratio at the input to the demodulator for all values above which a small percentage change in the input carrier-to-noise ratio produces a substantially equal or smaller percentage change in the output signal-to-noise ratio.
(engineering)
The least value of a current, voltage, or other quantity that produces the minimum detectable response in an instrument or system.
(geology)
(mathematics)
A logic operator such that, if P, Q, R, S, … are statements, then the threshold will be true if at least N statements are true, false otherwise.
(physics)
The minimum level of some input quantity needed for some process to take place, such as a threshold energy for a reaction, or the minimum level of pumping at which a laser can go into self-excited oscillation.
(physiology)
The minimum level of a stimulus that will evoke a response in an irritable tissue.

threshold

1. A strip fastened to the floor beneath a door, usually required to cover the joint where two types of floor material meet; may provide weather protection at exterior doors. Also See doorsill.
2. In illumination engineering, the value of physical stimulus which permits an object to be seen a specified percentage of the time with specified accuracy.

threshold

threshold
The beginning of that portion of the runway usable for landing (ICAO). On instrument runways, it is indicated by long stripes followed by the runway designation marking. The number of stripes is dependent on the width of the runway.

threshold

(1) The point at which a signal (voltage, current, etc.) is perceived as valid.

(2) (Threshold) The code name for Windows 10.
References in periodicals archive ?
8) the atrial pacing threshold was found significantly higher in the CRT group than the PM group at implantation, then the groups equalized at 1 month and CRT group had significantly higher values again after 3 and 6 months.
After severe ischemia, loss of contractility was irreversible and pacing threshold increased.
Our study does not yield any relationship between pacing threshold values and severity and distribution of CAD.
This study investigated the effect of CAD severity, distribution and LVEF on acute ventricular pacing threshold and lead impedance at the time of pacemaker implantation.
Ventricular pacing threshold and impedance values may reflect dissimilar electrical properties of ventricles in both groups.
Comparison of EF, pacing threshold and impedance values in ICD and PM groups Variables ICD Group (n=43) PM Group (n=89) * p EF, % 34.
To our knowledge, there is no published data regarding the effects of severity, and distribution of coronary artery disease (CAD) on pacing thresholds and impedance at the time of implantation.
In 5 patients, a somewhat higher (from +7 to +13%) pacing threshold was recorded.
The pacing threshold (and current strength) can be reduced by modifying certain parameters: the position of pacing electrodes, construction of electrodes, distance between electrodes and the duration and shape of the pulse.
In more than half of the cases using the proposed method there was no accompanying significant increase of atrial pacing threshold.
Pacing thresholds Change in Number of patients pacing threshold, % -15-0 4 1-15 5 16-30 6 > 30 2
Stimulation points 1 cm to distal or proximal to optimal position also assure acceptable pacing thresholds.