Energy (signal processing)

In signal processing, the energy of a continuous-time signal x(t) is defined as

the energy of a discrete-time signal x(t) is defined as

Relationship to energy in physics

Energy in this context is not, strictly speaking, the same as the conventional notion of energy in physics and the other sciences. The two concepts are, however, closely related, and it is possible to convert from one to the other:

For example, if x(t) represents the potential (in volts) of an electrical signal propagating across a transmission line, then Z would represent the characteristic impedance (in ohms) of the transmission line. The units of measure for the signal energy would appear as volt²·seconds, which is not dimensionally correct for energy in the sense of the physical sciences. After dividing by Z, however, the dimensions of E would become volt²·seconds per ohm, which is equivalent to joules, the SI unit for energy as defined in the physical sciences.

Spectral energy density

Seven Year Itch (Collective Soul album)

On September 18, 2001, Collective Soul released their greatest hits compilation Seven Year Itch: Greatest Hits, 1994-2001 (stylized as 7even Year Itch). The compilation includes songs recorded from 1994 to 2001 and included two new tracks; "Next Homecoming" and "Energy". Seven Year Itch received decent reviews and was relatively successful It sold 225,000 copies in the first year after its release and reached number fifty on the Billboard 200; in Canada, it reached number nine on its albums chart and went platinum. All the songs in Seven Year Itch had charted in the US on the Billboard Hot 100, Mainstream Rock Tracks, or the Modern Rock Tracks chart, except for "Energy", which debuted in this compilation.

The compilation has sold over 500,000 copies. It saw a resurgence in sales after Collective Soul began putting out albums on their own independent label, El Music Group, beginning in 2004.

Seven Year Itch was the last album Collective Soul released through Atlantic Records and their last album to feature guitarist Ross Childress, who had been with the band since its 1993/1994 debut.

Energy (Drake song)

"Energy" is the second single by Canadian rapper Drake from his fourth commercial release If You're Reading This It's Too Late.

Composition

"Energy" contains samples from Eazy-Duz-It performed by Eazy-E and Ridin Spiners performed by Three 6 Mafia. Energy was produced by Boi-1da and OB O'Brien. According to WhoSampled the song samples the score of an episode of The O.C..

Critical reception

"Energy" received acclaim from music critics with many calling it the best song of the album. Ryan Dombal of Pitchfork gave the song a positive review and named it "Best New Track", stating "The song isn't aimed to any rappers or pop stars, not Kendrick Lamar, Big Sean or Tyga, but the song lines are dangerous."

Music video

Release

The video of "Energy" was released on Apple Music and users with iTunes and registered Apple Music account can watch this video.

Synopsis

Pink Crustaceans and Good Vibrations

Pink Crustaceans and Good Vibrations is the fifth studio album from Pepper released on July 22, 2008. The title is taken from a fictional album recorded by "Coconut Pete" in the Broken Lizard film Club Dread. The album is produced by Paul Leary. Keyboards by Ronnie King.

Track listing

Production

Charts

Album - Billboard (North America)

References

Ambition (novel)

Ambition is the first novel by Julie Burchill published in 1989 hardback and 1990 paperback, ISBN 9780552135580.

It tells the story of the ambitious if unimaginatively named Susan Street and her efforts to become a newspaper editor. To achieve her goal she is set a number of tasks by a press magnate. These involve her flying around the world to have sex with a large number of men and women while he looks on.

References

External links

Miz

Mizuki Watanabe (渡辺 みづき, Watanabe Mizuki, born March 6, 1981 in Kitami, Hokkaidō, Japan), better known simply as Miz, is a Japanese pop/rock singer and actress. Though most of her music is released in Japan, she does her work primarily from Gotland in Sweden, mainly doing promotional videos, photo shoots and recording there. She originally debuted in 1999 under Universal Music Japan using her real name, Watanabe Mizuki, releasing two singles. In 2003, she began working with the Swedish producer Tord Backstrom and debuted under Victor Entertainment with the pseudonym Miz in 2004. That same year, she released an English album in Sweden, with the lead single "Waiting" reaching #8 on the Hitlistan Swedish singles chart. In 2007, Watanabe returned to Universal Music Japan, changed her stage name to Mizrock, and released her first mini-album Good bye, yesterday and three singles. However, in 2009 she announced on her official blog that she had changed her stage name back to Miz. Her biggest hits in Japan are "New Day" and "In The Sky", the theme song for the Square Enix role-playing video game Grandia III.