ICI

ICI or Ici may mean:

ICI is also an abbreviation which may mean:

ICI-199,441

ICI-199,441 is a drug which acts as a potent and selective κ-opioid agonist, and has analgesic effects. It is a biased agonist of the KOR, and is one of a relatively few KOR ligands that is G protein-biased rather than β-arrestin-biased.

See also

References

ICI-63197

ICI-63197 is a phosphodiesterase inhibitor.

References

Ensemble

Art

Math and Science

Technology

Ensemble (Stockhausen)

Ensemble is a group-composition project devised by Karlheinz Stockhausen for the 1967 Darmstädter Ferienkurse. Twelve composers and twelve instrumentalists participated, and the resulting performance lasted four hours. It is not assigned a work number in Stockhausen's catalogue of works.

History

For the 1967 Darmstädter Ferienkurse Stockhausen organised a composition seminar during the two-week period preceding the courses proper, in which twelve composers from various countries each developed a composition which was a dialogue to be performed by an instrumentalist and the composer, using either a previously prepared tape of sound materials or a short-wave receiver (Gehlhaar 1968, 9, 45). This was the first time in the history of the Darmstadt Courses that actual composing was formally undertaken within the framework of the courses themselves (Iddon 2004, 87).

The participating composers were paired with the instrumentalists (eleven members of the Ensemble Hudba Dneska (Bratislava), directed by Ladislav Kupkovič, plus Aloys Kontarsky (Stockhausen 1971, 213; Gehlhaar 1968, 7, 39, 43, 75:

Ensemble (fluid mechanics)

In continuum mechanics, an ensemble is an imaginary collection of notionally identical experiments.

Each member of the ensemble will have nominally identical boundary conditions and fluid properties. If the flow is turbulent, the details of the fluid motion will differ from member to member because the experimental setup will be microscopically different; and these slight differences become magnified as time progresses. Members of an ensemble are, by definition, statistically independent of one another. The concept of ensemble is useful in thought experiments and to improve theoretical understanding of turbulence.

A good image to have in mind is a typical fluid mechanics experiment such as a mixing box. Imagine a million mixing boxes, distributed over the earth; at a predetermined time, a million fluid mechanics engineers each start one experiment, and monitor the flow. Each engineer then sends his or her results to a central database. Such a process would give results that are close to the theoretical ideal of an ensemble.