Sonar

Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used in air for robot navigation, and SODAR (an upward looking in-air sonar) is used for atmospheric investigations. The term sonar is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic) to extremely high (ultrasonic). The study of underwater sound is known as underwater acoustics or hydroacoustics.

Sonar (comics)

Sonar is a DC Comics supervillain. He first appeared in Green Lantern (2nd series) #14, July (1962), and was created by John Broome and Gil Kane.

Fictional character biography

Bito Wladon

Nestled in the mountains of south eastern Europe lies the tiny Balkan nation of Modora. With a population of four hundred, Modora was relatively unknown to the rest of the world, whose only product was the wool of a peculiar brown sheep found only in that small area. It was not even a member of the United Nations. Modora was sealed off from the rest of the world by Fando the Mad, a leader who believed Modora should be frozen in its past. He burned bridges and barricaded roads to the outside world while making all decisions for his countrymen. One man, Bito Wladon, was determined to change that.

Wladon's parents were deaf, which was a mark of Satan to the superstitious Modorans. By Modoran beliefs, they were not to be killed or hurt, they were to be shunned. Young Bito was a pariah as well, even though he could hear, he was the son of deaf parents. The cruel actions of his community built resentment towards his parents and the outside world. Bito Wladon would hide from the rest of the world in a barn, in which he one day discovered a cache of books, hidden by his peddler grandfather against the orders of Fando.

SonarQube

SonarQube (formerly Sonar) is an open source platform for continuous inspection of code quality.

Features

Reception

In 2009, SonarQube received the Jolt Awards under testing tools category. Featured in continuous integration tools. Used by the Andalusian Autonomous Government,eXo Platform,Apache Software Foundation,Eclipse Foundation, Marvelution.

Fredy

Fredy is a given name, and may refer to:

See also

Fredy (footballer, born 1990)

Alfredo Kulembe Ribeiro (born 27 March 1990), known as Fredy, is an Angolan professional footballer who plays for C.R.D. Libolo as a forward. He also holds Portuguese citizenship.

Club career

Born in Luanda, Fredy joined C.F. Os Belenenses' youth system at the age of 11, signing from neighbouring G.D.P. Costa de Caparica. He made his Primeira Liga debut on 3 April 2009, coming on as a 61st-minute substitute in a 0–1 away loss against Académica de Coimbra, and finished his first full season with 24 scoreless appearances as the Lisbon club suffered relegation.

Fredy scored eight goals in 38 games in the 2012–13 campaign, as Belenenses returned to the top level after three years. He netted for the first time in the competition on 12 April 2014, helping the hosts come from behind to win it 3–1 against Vitória S.C. with a brace.

International career

Fredy received his first callup to the Angola national team in February 2014. He made his international debut on 5 March, in a friendly with Mozambique.