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I ACS

Abbrev for International Annealed Copper Standard, relating the electrical conductivity of a metal or alloy to that of copper in percentage terms.

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I EC

Abbrev for International Electrotechnical Commission. Main standards setting body at international level for electronic materials, devices etc.

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I MAX

A wide-screen projector for 70mm film in which the height of the image is set by the width of the film. Used to fill a large screen that surrounds the audience's field of vision.

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I NEUTRON

A neutron possessing such energy as to undergo resonance absorption by iodine,

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I REGION

Region in the murine major histo

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I SIGNAL

In the NTSC colour TV system, that corresponding to the wideband axis of the chrominance signal.

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I/O ADDRESSES

Locations in main memory used to communicate with a peripheral device, eg a printer,

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I2R LOSS

The power loss caused by the flow of a current / through a resistance R.

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IAEA

Abbrev for International Atomic Energy Agency. Autonomous intergovernmental body concerned with the promotion of nuclear energy and to ensure as far as possible that it is not used to further military objectives.

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IATA

Abbrev for International Air Transport Associ

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