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

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

Energy (Melissa Manchester song)

"Energy" is a song performed by American singer Melissa Manchester, from her 1985 album Mathematics.

Details

The song was arranged by veteran songwriter Greg Mathieson and was released as the second single from the album, following the underperformance of the lead single "Mathematics", MCA hoped to reverse the album's fortune by releasing this Hi-NRG track with an aim for the club market.

Melissa Manchester filmed a videoclip to promote the song, which sees the singer and her band in a sort of industrial-setting stage performing the song.

The single was released on 7" and 12" formats featuring remixes, but it failed to chart either on the Billboard Hot 100 or the dance charts, and failed to chart elsewhere. The b-side to the single was a non-album song, called "So Full Of Yourself", which was co-written by Manchester and Tom Snow and used as the b-side to all 3 singles off the album.

Track listings

View (magazine)

View was an American literary and art magazine published from 1940 to 1947 by artist and writer Charles Henri Ford, and writer and film critic Parker Tyler. The magazine is best known for introducing Surrealism to the American public.

The magazine covered the contemporary avant-garde and Surrealist scene, and was published quarterly as finances permitted until 1947. View featured cover designs by renowned artists with the highly stylised typography of Tyler along with their art, and the prose and poetry of the day.

Many of the contributors had been living in Europe, but took refuge in the U.S. during World War II bringing with them the avant-garde ideas of the time and precipitating a shift of the center of the art world from Paris to New York. It attracted contributions from writers like Wallace Stevens, an interview with whom was featured in the first number of View, William Carlos Williams, Joseph Cornell, Edouard Roditi, Henry Miller, Lawrence Durrell, Paul Bowles, Brion Gysin, Philip Lamantia, Paul Goodman, Marshall McLuhan, André Breton, Raymond Roussel, Albert Camus, Jean-Paul Sartre, Jean Genet or Jorge Luis Borges and artists like Pablo Picasso, Paul Klee, Fernand Léger, Georgia O'Keeffe, Man Ray, Joan Miró, Alexander Calder, Isamu Noguchi, Marc Chagall, René Magritte and Jean Dubuffet (Surrealism in Belgium, Dec. 1946). Max Ernst (April 1942), the Yves TanguyPavel Tchelitchew number with Nicolas Calas, Benjamin Péret, Kurt Seligmann, James Johnson Sweeney, Harold Rosenberg and Charles Henri Ford on Tanguy, Parker Tyler, Lincoln Kirstein and others on Tchelitchew (May 1942) and Marcel Duchamp, with an essay by André Breton, (March 1945) all got special numbers of the magazine. The earlier Surrealism special (View 7-8, 1941) had featured Artaud, Victor Brauner, Leonora Carrington, Marcel Duchamp and André Masson. There was an Americana Fantastica number (January 1943) and, edited by Paul Bowles the Tropical Americana issue on Mexico (

View (Buddhism)

View or position (Pali diṭṭhi, Sanskrit dṛṣṭi) is a central idea in Buddhism. In Buddhist thought, in contrast with the commonsense understanding, a view is not a simple, abstract collection of propositions, but a charged interpretation of experience which intensely shapes and affects thought, sensation, and action. Having the proper mental attitude toward views is therefore considered an integral part of the Buddhist path.

Positions

Views are produced by and in turn produce mental conditioning. They are symptoms of conditioning, rather than neutral alternatives individuals can dispassionately choose. The Buddha, according to the discourses, having attained the state of unconditioned mind, is said to have "passed beyond the bondage, tie, greed, obsession, acceptance, attachment, and lust of view."

The Buddha of the early discourses often refers to the negative effect of attachment to speculative or fixed views, dogmatic opinions, or even correct views if not personally known to be true. In describing the highly diverse intellectual landscape of his day, he is said to have referred to "the wrangling of views, the jungle of views." He assumed an unsympathetic attitude toward speculative and religious thought in general. In a set of poems in the Sutta Nipata, the Buddha states that he himself has no viewpoint. According to Steven Collins, these poems distill the style of teaching that was concerned less with the content of views and theories than with the psychological state of those who hold them.

Acornsoft

Acornsoft was the software arm of Acorn Computers, and a major publisher of software for the BBC Micro and Acorn Electron. As well as games, it also produced a large number of educational titles, extra computer languages and business and utility packages – these included word processor VIEW and the spreadsheet ViewSheet supplied on ROM and cartridge for the BBC Micro/Acorn Electron and included as standard in the BBC Master and Acorn Business Computer.

Acornsoft was formed in late 1980 by Acorn Computers directors Hermann Hauser and Chris Curry, and David Johnson-Davies, author of the first game for a UK personal computer and of the official Acorn Atom manual "Atomic Theory and Practice". David Johnson-Davies was Managing Director and in early 1981 was joined by Tim Dobson, Programmer and Chris Jordan, Publications Editor.

While some of their games were clones or remakes of popular arcade games (e.g. Hopper is a clone of Sega's Frogger, Snapper is Namco's Pac-Man, Arcadians is Namco's Galaxian), they also published a number of original ground-breaking titles such as Aviator, Elite and Revs which went on to spawn entire genres that live on to this day.

Outlook (Jewish magazine)

Outlook: Canada's Progressive Jewish Magazine is an independent, secular Jewish periodical published six times a year and based in Vancouver, British Columbia. Founded in 1962, as Canadian Jewish Outlook, an English supplement to the Yiddish newspaper The Vochenblatt, the publication has a "socialist-humanist" perspective; it receives support from the United Jewish Peoples Order though it is not formally affiliated with it. Outlook is the only Canadian publication devoted to yiddishkeit, Jewish ethical humanism and Israeli-Palestinian peace and justice issues.

The magazine adopted its current name in 1986. In 1988 The Canadian Jewish Outlook Anthology, a collection of articles, editorials and reviews carried in the magazine during its first twenty-five years was published with Henry Rosenthal and Cathy Berson as editors.

The magazine is currently edited in Vancouver by Carl Rosenberg and Sylvia Friedman.

References

External links