ER

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Related to erbium: Erbium doped fiber amplifier

ER

The two-character ISO 3166 country code for ERITREA.

ER

1. ISO 3166-1 alpha-2 code for the State of Eritrea. This is the code used in international transactions to and from Eritrean bank accounts.

2. ISO 3166-2 geocode for Eritrea. This is used as an international standard for shipping to Eritrea. Each Eritrean province has its own code with the prefix "ER." For example, the code for the Province of Debub is ISO 3166-2:ER-DU.

Qualifying Widow(er)

The filing status available to a qualified taxpayer for two tax years following the year of the spouse's death. To qualify, the surviving spouse must have been entitled to file a joint return for the year of death, remain unmarried at the end of the current tax year, and pay over half the cost of maintaining his or her home, which was the principal residence the entire tax year of his or her dependent child (other than a foster child).
References in periodicals archive ?
He encourages these patients to come back a few days after the procedure to check their healing and review wound-care instructions, especially for patients who have deeper full-field perioral erbium resurfacing (those who are treated with 450-700 micrometers).
Mohamad, "Effect of erbium nanoparticles on optical properties of zinc borotellurite glass system," Journal of Nanomaterials, vol.
Acid ResistAnce of dentin AfteR eRbium:yttRium- ALuminum-GARnet LAseR iRRAdiAtion.
And if the lesions are not pigmented, it's easier to remove with Erbium and CO2 lasers, because these wavelengths are easily absorbed in water.
Soft tissue lasers may be use to expose the exostoses and erbium lasers may be use for the osseous reduction.
Polimeni, "The use of Erbium:YAG laser for caries removal in paediatric patients following minimally invasive dentistry concepts," European Journal of Paediatric Dentistry, vol.
Ma, "Erbium concentration effects on the structural and photoluminescence properties of ZnO:Er films," Materials Letters, vol.
For amplifier realization HWT-FIB-EDF-741 erbium doped fibre was used.
Coppens, Lilley, and Jones have developed lightweight and rigid, lead-free radiation shielding based on two or more radiation-shielding elements such as antimony, bismuth, iodine, tungsten, tin, tantalum, erbium, and barium, or their salts, compounds or alloys.
Yttrium, ytterbium, erbium and terbium are all named for Ytterby; many other rare earths have Scandinavian names, such as holmium, named for Stockholm, and scandium, named for Scandinavia.
The rare earth sector covers companies with operations involving exploration, extraction, transport, processing or any other business involving any of the following 17 rare earth elements: Scandium, Yttrium, Lanthanum, Lutetium, Ytterbium, Thulium, Erbium, Holmium, Dysprosium, Terbium, Gadolinium, Europium, Samarium, Promethium, Neodymium, Praseodymium, and Cerium.