displacement


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Related to displacement: displacement unit, displacement engine

displacement,

in psychology: see defense mechanismdefense mechanism,
in psychoanalysis, any of a variety of unconscious personality reactions which the ego uses to protect the conscious mind from threatening feelings and perceptions.
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Displacement

 

in mechanics, the vector connecting the positions of a moving point at the beginning and the end of a certain time interval. The displacement vector is directed along the chord between the beginning and end of the point’s trajectory.

Displacement

(dreams)

Although many aspects of the personality theory formulated by Sigmund Freud have been rejected by contemporary analysts, Freud was nevertheless responsible for a significant number of insights into human nature that have been generally accepted. Among these insights are the Freudian “defense mechanisms,” one of which is displacement. In displacement we repress a certain urge, which is then redirected to another object or person. A familiar example is the employee who is yelled at by his boss, and who then goes home and yells at his spouse. What he really wants to do is to yell back at his boss, but he redirects the urge and takes out his anger on a safer target. A roughly similar process takes place in dreams.

According to Freud, dreams provide an avenue for the expression of normally repressed desires while simultaneously disguising and censoring our real urges. In this view the purpose of dreams is to allow us to satisfy in fantasies the instinctual urges that society judges to be unacceptable in some way, such as the urge to kill a bullying employer. If, however, we were to dream about the actual, overt murder of our boss, the emotions evoked by he dream would wake us up. So that our sleep is not continually disturbed by such dreams, the mind modifies and disguises the content of our dreams so that strong emotions are not evoked. Thus, instead of dreaming about killing our boss, we might, for example, dream about our employer’s automobile being accidentally crushed by a runaway garbage truck.

displacement

[dis′plās·mənt]
(chemistry)
A chemical reaction in which an atom, radical, or molecule displaces and sets free an element of a compound.
(computer science)
The number of character positions or memory locations from some point of reference to a specified character or data item. Also known as offset.
(electricity)
(fluid mechanics)
The weight of fluid which is displaced by a floating body, equal to the weight of the body and its contents; the displacement of a ship is generally measured in long tons (1 long ton = 2240 pounds).
The volume of fluid which is displaced by a floating body.
(geology)
(mechanics)
The linear distance from the initial to the final position of an object moved from one place to another, regardless of the length of path followed.
The distance of an oscillating particle from its equilibrium position.
(mechanical engineering)
The volume swept out in one stroke by a piston moving in a cylinder as for an engine, pump, or compressor.
(psychology)
A defense mechanism in which emotions, ideas, or wishes are transferred from their original object to a more acceptable substitute.

displacement

displacementclick for a larger image
displacementclick for a larger image
i. The total volume swept by pistons during the 180° rotation of a crankshaft of an internal combustion engine. It is the volume between top dead center and bottom dead center of an engine cylinder. Also called a swept volume.
ii. The mass of air displaced by a balloon or an airship. It may also be referred to as the weight of displaced air.
iii. The distance of any point from a standard point.
iv. The separation between a target and an interceptor at any point of time.

displacement

1. the weight or volume displaced by a floating or submerged body in a fluid
2. the volume displaced by the piston of a reciprocating pump or engine
3. Psychoanal the transferring of emotional feelings from their original object to one that disguises their real nature
4. Geology the distance any point on one side of a fault plane has moved in relation to a corresponding point on the opposite side
5. Astronomy an apparent change in position of a body, such as a star
6. Maths the distance measured in a particular direction from a reference point.
References in periodicals archive ?
permit application for it during the Special Displacement Window.
Large-scale displacements in the Philippines, Peru, and Sri Lanka also took place in the context of seasonal flooding.
it] is a dummy variable that refers to the first displacement event and is equal to 1 if individual i, at time period t, was displaced for the first time k periods ago.
In addition to the D4D solution, Honourable Mention was awarded to Samuel Bollier, a masters student in international relations at Tufts University, for his submission Human Displacement Analyser.
The expression for the sensitivity of displacement calculation, here developed, considers the effect of acceleration and allows us to get very close values to those obtained through simulation.
The national policy was based on earlier policy initiatives and other efforts to address displacement including the LLRC report and integrates key international standards including the UN Guiding Principles on Internal Displacement and the IASC Framework on Durable Solutions.
The report also includes data on displacement due to natural disasters: at present, 24,744 individuals remain displaced due to cyclones and floods.
The output shaft of the micro actuator and the output end of the displacement amplification mechanism were on the same axis, and moved in the same direction so as to ensure the stability and same-phase of the displacement amplification.
The total number of new displacements last year "is the equivalent of the combined populations of New York City, London, Paris and Cairo grabbing what they can carry, often in a state of panic, and setting out on a journey filled with uncertainty," (http://www.
The angle and distance measurements carried out in the area of the Bochnia mine yielded the results of horizontal displacements and the azimuth of the displacement vector of control points mounted both on the surface and underground in the mining excavations.
d0] denotes the dynamic horizontal displacement of the bridge at its centroid, [w.
In all the symptomatic TMJ the disc was displaced either anterior or anteromedial or anterolateral, but superior displacement was asymptomatic (Figure 2).