Closed-circuit Television, CCTV
Closed circuit can refer to: *Closed-circuit television *Closed-circuit radio A closed-circuit radio is a radio that emits over a very small range, typically a college campus. This system can be achieved from two ways: *By tying into the PA System *By using existing power lines Electric power transmission is the bulk mov ... * Rebreather – breathing sets * ''Closed Circuit'' (1978 film), a 1978 Italian film * ''Closed Circuit'' (2013 film), a 2013 British thriller film *An electric circuit is a "closed circuit" if it contains a complete path between the positive and negative terminals of its power source * ''Closed Circuit'' (album), a 2001 album by New Zealand composer Peter Jefferies {{disambig ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Closed-circuit Television
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point (P2P), point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (Videotelephony is seldom called "CCTV"). Surveillance of the public using CCTV is common in many areas around the world. In recent years, the use of body worn video cameras has been introduced as a new form of surveillance, often used in law enforcement, with cameras located on a police officer's chest or head. Video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public. ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Closed-circuit Radio
A closed-circuit radio is a radio that emits over a very small range, typically a college campus. This system can be achieved from two ways: *By tying into the PA System *By using existing power lines Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is d ..., telephones lines, pipes, etc. to transmit a carrier current References Radio communications {{radio-comm-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rebreather
A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's breathing, exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user. This differs from open-circuit breathing apparatus, where the exhaled gas is discharged directly into the environment. The purpose is to extend the breathing endurance of a limited gas supply, and, for covert military use by frogmen or observation of underwater life, eliminating the bubbles produced by an open circuit system and in turn not scaring wildlife being filmed. A rebreather is generally understood to be a portable unit carried by the user. The same technology on a vehicle or non-mobile installation is more likely to be referred to as a life-support system. Rebreather technology may be used where breathing gas supply is limited, such as underwater or in space, where ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Closed Circuit (1978 Film)
''Closed Circuit'' ( it, Circuito chiuso) is a 1978 Italian made-for-television social science fiction ''giallo'' film directed by Giuliano Montaldo. It was entered into the 28th Berlin International Film Festival. The film concerns the police investigation of the murder of a cinema attendee who is shot dead during a matinée showing of a Spaghetti Western starring Giuliano Gemma. Cast * Flavio Bucci - Il sociologo * Tony Kendall - Roberto Vinci * Aurore Clément - Gabriella * William Berger - Il pistolero sfidante * Giuliano Gemma - Il pistolero * Luciano Catenacci - Vice-questore * Giovanni Di Benedetto - Nonno * Mattia Sbragia - L'adolescente * Franco Balducci - Aldo Capocci * Guerrino Crivello - Piccoletto * Alfredo Pea - Garzone * Laura D'Angelo Laura may refer to: People * Laura (given name) * Laura, the British code name for the World War I Belgian spy Marthe Cnockaert Places Australia * Laura, Queensland, a town on the Cape York Peninsula * Laura, South Australi ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Closed Circuit (2013 Film)
''Closed Circuit'' is a 2013 British-American political thriller drama film directed by John Crowley and written by Steven Knight, released on August 28, 2013. The film stars Eric Bana, Rebecca Hall, Ciarán Hinds, Jim Broadbent, and Riz Ahmed. Plot A bomb planted in a lorry detonates in London's Borough Market killing 120 people. The London police receive an anonymous tip and arrest Farroukh Erdogan, a Turkish immigrant, as the terror cell leader and mastermind of the attack. Two other members of the cell die in the bombing and the fourth is killed by police in a shoot-out during the raid to apprehend him. When Erdogan's defence barrister commits suicide, Martin Rose is appointed by the Attorney General to replace him, joining special advocate Claudia Simmons-Howe. Due to national security concerns, Erdogan's case follows closed material procedures; Claudia represents Erdogan during closed sessions with a judge ruling what evidence is permissible for Martin to use in the open ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Electric Circuit
An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances). An electrical circuit is a network consisting of a closed loop, giving a return path for the current. Linear electrical networks, a special type consisting only of sources (voltage or current), linear lumped elements (resistors, capacitors, inductors), and linear distributed elements (transmission lines), have the property that signals are linearly superimposable. They are thus more easily analyzed, using powerful frequency domain methods such as Laplace transforms, to determine DC response, AC response, and transient response. A resistive circuit is a circuit containing only resistors and ideal current and voltage sources. Analysis of resistive circuits is less complicated t ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |