IR

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Ir,

symbol for the element iridiumiridium
, metallic chemical element; symbol Ir; at. no. 77; at. wt. 192.217; m.p. about 2,410°C;; b.p. about 4,130°C;; sp. gr. 22.55 at 20°C;; valence +3 or +4.
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IR

Abbrev. for infrared.

Ir

(chemistry)

IR

Abbr. for “inside radius.”

IR

(networking)

IR

(electronics)

ir

(networking)
The country code for Iran.

IR

(1) (Industry Remarketer) See VAR and VAD.

(2) See infrared, IR detector and IrDA.

(3) See information resources.
References in periodicals archive ?
The performance of the VAIS was compared with the VC with the same capacity to address the efficiency improvement achieved by the VAIS, as shown in Table 1.
First of all, if the cooling water inlet temperature, T[30], changes, the performances of the VC and the VAIS changes accordingly.
This results in the decrease of the heating capacity of the AHP in the VAIS.