Channel (programming)

In computing, a channel is a model for interprocess communication and synchronization via message passing. A message may be sent over a channel, and another process or thread is able to receive messages sent over a channel it has a reference to, as a stream. Different implementations of channels may be buffered or not, and either synchronous or asynchronous.

Channels are fundamental to the process calculus approach to concurrency, and originated in communicating sequential processes (CSP), a formal model for concurrency, and has been used in many derived languages, such as occam, and Limbo programming language (via Newsqueak and the Alef programming language). They are also used in the C programming language threading library libthread, and in Plan 9 from Bell Labs, which uses libthread, as well as in Stackless Python and the Go programming language.

Channel implementations

Channels modeled after the CSP model are inherently synchronous: a process waiting to receive an object from a channel will block until the object is sent. This is also called rendezvous behaviour. Typical supported operations are presented below using the example of the libthread channel API.

Price channels

A price channel is a pair of parallel trend lines that form a chart pattern for a stock or commodity. Channels may be horizontal, ascending or descending. When prices pass through and stay through a trendline representing support or resistance, the trend is said to be broken and there is a "breakout".

References

See also

Meridian (Chinese medicine)

The meridian system (simplified Chinese: 经络; traditional Chinese: 經絡; pinyin: jīngluò, also called channel network) is a traditional Chinese medicine (TCM) belief about a path through which the life-energy known as "qi" flows.

A 2001 review found little evidence to support the existence or function of qi or acupuncture meridians. However, more recent studies confirm that the meridians and acupoints have many biophysical properties such as electric, thermal, acoustic, optical, magnetic, isotopic, and myoelectric characteristics, which are different from those of non-acupuncture points.

Main concepts

The meridian network is typically divided into 2 categories, the jingmai (經脈) or meridian channels and the luomai (絡脈) or associated vessels (sometimes called "collaterals"). The jingmai contain the 12 tendinomuscular meridians, the 12 divergent meridians, the 12 principal meridians, the 8 extraordinary vessels as well as the Huato channel, a set of bilateral points on the lower back whose discovery is attributed to the famous physician in ancient China. The collaterals contain 15 major arteries that connect the 12 principal meridians in various ways, in addition to the interaction with their associated internal organs and other related internal structures. The collateral system also incorporates a branching expanse of capillary like vessels which spread throughout the body, namely in the 12 cutaneous regions as well as emanating from each point on the principal meridians. If one counts the number of unique points on each meridian, the total comes to 361, although 365 is usually used since it coincides with the number of days in a year. Note that this method ignores the fact that the bulk of acupoints are bilateral, making the actual total 670.

Diva (magazine)

DIVA is a leading lesbian magazine in the United Kingdom, published monthly. It was launched in 1994 by Millivres Prowler Group Ltd., who also produce Gay Times. The current editor is Jane Czyzselska, who has held the position since 2004. It includes many articles dedicated to lesbian and bisexual social issues, and candid interviews with gay icons and prominent lesbians alike. In November 2008, DIVA was published under the name "The Souvenir Issue" for the purpose of celebrating the 150th issue by including the cover pages of every issue that had been published since April 1994.DIVA has a dating website which was launched in 2013.

Inspired by the Everyday Sexism Project, Diva editor Jane Czyzselska launched the Everyday Lesbophobia campaign in 2013 to document instances of lesbophobia.

See also

References

External links

Diva (1981 film)

Diva is a 1981 French thriller film directed by Jean-Jacques Beineix, adapted from the novel Diva by Daniel Odier (under the pseudonym Delacorta). It is one of the first French films to let go of the realist mood of 1970s French cinema and return to a colourful, melodic style, later described as cinéma du look.

The film made a successful debut in France in 1981 with 2,281,569 admissions, and had success in the US the next year grossing $2,678,103. The film became a cult classic and was internationally acclaimed.

Plot

Young Parisian postman Jules is obsessed with classical music; he is particularly obsessed with Cynthia Hawkins, a beautiful and celebrated American opera singer who has never allowed any of her performances to be recorded.

Jules attends a recital at the Théâtre des Bouffes du Nord in Paris, where Hawkins sings the aria Ebben? Ne andrò lontana from the opera La Wally. He illicitly makes a high-quality bootleg recording of her performance using a Nagra professional tape-recorder. Afterwards, he steals the gown she was wearing from her dressing room.

Diva (Asia TV channel)

Diva (formerly Diva Universal) is an Asian cable and satellite television channel owned and operated by Universal Networks International. It has been available on most subscription television cable and Satellite platforms in East Asia since 1 October 2003.

History

1997-2010: Hallmark Channel

Hallmark Channel Asia was launched in 1997. Most of the programs were all canned from US, including Oprah and The Biggest Loser. It had four different feeds including the Philippines feed, which was launched on August 19, 2009.

2010-2014: Diva Universal

Hallmark Channel Asia ended its broadcast on September 19, 2010, and was replaced by Diva Universal that evening, as part of Universal Networks International's efforts to refocus its network portfolio.

2014: Diva

On June 16, 2014, Diva Universal's name was simplified to "Diva".

Operating Channels