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The CHR/Pop chart was used for Westwood One's "Casey's Top 40" (January 1989 – March 1998) and Premiere Networks' American Top 40 (March 1998 – October 2000, and August 2001 – January 2004). The current Ryan Seacrest AT40 show uses Mediabase 24/7. The Hot AC chart was used for both Casey's Hot 20 and the Hot AC version of American Top 20.
CCM AC chart was an adult contemporary chart that was originally started by CCM Magazine in 1978. According to author Jeffrey Lee Brothers in his book Hot Hits: AC Charts 1978 – 2001, "When CCM published music charts, it received data from a specific number of radio stations regarding the number of times a song was played. This airplay data ...
Mechanical systems drawing is a type of technical drawing that shows information about heating, ventilating, air conditioning and transportation around the building (Elevators or Lifts and Escalator). [1] It is a powerful tool that helps analyze complex systems.
A diagram of a "paint-can"-type heating mantle. (A)=beaker outside the mantle; (B)=beaker within the basket of the mantle; (C)=the main body of the heating mantle; and (D)=the power cord for connecting the mantle to a source of AC electricity (usually a variac).
Mediabase is a music industry service that monitors radio station airplay in 180 US and Canadian markets. Mediabase publishes music charts and data based on the most played songs on terrestrial and satellite radio, and provides in-depth analytical tools for radio and record industry professionals.
On the Hot AC version of AT40, "Use Somebody" by Kings of Leon set the all-time record in 2011 at 117 consecutive weeks. American Top 40 also became more interactive, involving online song voting and e-mail. In December 2006, the series' website was revamped, and the online song voting was discontinued in favor of publishing the Hot AC chart.
The company develops, manufactures and sells heating and air conditioning systems, hot water boilers, maneuvering systems and products for energy and gas supply. Truma was founded in 1949 in Munich, Germany. Today the headquarters is located in Putzbrunn near Munich and the company operates worldwide sales offices. Since the introduction of the ...
The amount of crossover between the AC chart and the Hot 100 has varied based on how much the passing pop music trends of the times appealed to adult listeners. Not many disco or new wave songs were particularly successful on the AC chart during the late 1970s and early 1980s, and much of the hip-hop and harder rock music featured on CHR ...