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Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. Outside the US, the ISO Sound Reduction Index (SRI) is used. The STC rating very roughly reflects the ...
The Chinese telegraph code can be used for a Chinese input method for computers. Ordinary computer users today hardly master it because it needs a lot of rote memorization. However, the related Four-Corner Method, which allows one to look up characters by shape, is used. Both the Hong Kong and Macau Resident Identity Cards display the Chinese ...
The Standard Industrial Classification (SIC) was a system for classifying industries by a four-digit code as a method of standardizing industry classification for statistical purposes across agencies. Established in the United States in 1937, it is used by government agencies to classify industry areas. Similar SIC systems are also used by ...
West Virginia Gov. Jim Justice’s English bulldog is getting her own bobblehead. The National Bobblehead Hall of Fame and Museum in Milwaukee announced plans Friday for a bobblehead doll for the ...
The 2020 United States presidential election was the 59th quadrennial presidential election, held on Tuesday, November 3, 2020. [a] The Democratic ticket of former vice president Joe Biden and the junior U.S. senator from California Kamala Harris defeated the incumbent Republican president, Donald Trump, and vice president, Mike Pence. [9]
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that. A code consists of a number of code points, each corresponding to a letter of the ...
Saudi Telecommunication Company (stc) was established as a Saudi joint-stock company on 21 April 1998 and began operations of telecommunications services throughout Saudi Arabia on 2 May 1998 as a wholly owned entity of the government of Saudi Arabia. [ 4][ 5] stc received commercial registration as a Saudi Joint Stock Company on June 29, 1998 ...
In 1993, further changes were made throughout Northern Ireland in preparation for PhONEday in 1995. Many of the changes were eliminating 3-digit and 4-digit subscriber numbers in rural exchanges by adding extra digits; the table below shows the end result. The system of "mixed" areas remained in place.