Within GNS theory, this is a general term for play where everyon shares a focused priority on a single GNS mode or functional hybrid. Game designs are said to be coherent if they clearly encourage play of this sort: in particular by having mechanics which support the GNS mode encouraged by the text. The opposite is Incoherence. References: GNS and Other Matters of Role-playing Theory Simulationism: The Right to Dream
maintenance of a constant phase relationship between rotating or oscillating waves or objects. Loss of phase coherence of the spins results in a decrease in the transverse magnetization and hence a decrease in the NMR signal.
DAN’S version; (Co-here-and-see). and coherent emotion. Same meaning in math, in hydronamics (wave theory), and in poetry: all the meanings or waves fit one nest in order. Suggestive of columniation, cascading, phase locking or phase discipline. Onset coherence in light is a laser, in emotion is a piezoelectric glandular mediated real felt motion ready to waltz up and down the ladder of wave ratio between worlds.
the condition that the phase difference between waves is constant in time and space (see figure 24.10)
Characterized in light forms as a consistent fixed relationship between points on the wave.
Refers to the phase stability of two wavetrains, from the same optical wave, separated in time.
the act of maintaining a constant phase relationship between oscillating waves or rotating objects.
A term describing light as waves which are in phase in both time and space. Monochromaticity and low divergence are two properties of coherent light.
In listening, it describes a kind of perceptual realism in sounds. In measurements, it is a measure of the correlation between the phases of two or more signals.
Coherence can be devided into spatial and temporal coherence. For any em wave, if at time t=0 and t0 the phase diference between two points in space remains the same, we say the em wave has spatial coherence; If at a point P, the em wave at t and t+dt has same phase difference if dt is the same, temporal coherence exists.
The property of being coherent, e.g. waves having similar direction, amplitude and phase that are capable of exhibiting interference.
the degree to which separate parts of the electron wave have defined phase relationships, and are able to interfere with each other in the image formation process. There exists a gradation from full coherence (all parts of the wave have defined phase relationships) over partial coherence (intermediate situation) to incoherence (no defined phase relationships). In bright field electron microscopy, the contrast transfer function is normally given for the fully coherent situation, and the influence of partial coherence is expressed by an envelope function.
A measure of the similarity of two oscillating functions.
A definite phase relationship between two energy waves, such as transmitted frequency and reference frequency.
Coherence is the property of wave-like states that enables them to exhibit interference. It is also the parameter that quantifies the quality of the interference (also known as the degree of coherence). It was originally introduced in connection with Youngâ€™s double-slit experiment in optics but is now used in any field that involves waves, such as acoustics, electrical engineering, neuroscience, and quantum physics.