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Closed-circuit (other)
Closed circuit can refer to: *Closed-circuit television * Closed-circuit radio *Closed circuit breathing apparatus, commonly known as rebreathers for portable units, and as component parts of life-support systems for more complex equipment. * ''Closed Circuit'' (1978 film), a 1978 Italian film * ''Closed Circuit'' (2013 film), a 2013 British thriller film *An electric circuit An electrical network is an interconnection of electrical components (e.g., battery (electricity), batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e. ... 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 * '' The Closed Circuit'', a 2013 Polish action film directed by Ryszard Bugajski {{disambig [Baidu] |
Closed-circuit Television
Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television 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, 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"). The deployment of this technology has facilitated significant growth in state surveillance, a substantial rise in the methods of advanced social monitoring and control, and a host of crime prevention measures throughout the world. Though surveillance of the public using CCTV is common in many areas around the world, video surveillance has generated significant debate about balancing its us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, telephones lines, pipes, etc. to transmit a carrier current Carrier current transmission, originally called wired wireless, employs guided low-power Radio frequency, radio-frequency signals, which are transmitted along electrical conductors. The transmissions are picked up by receivers that are either conne ... References Radio communications {{radio-comm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebreather
A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantial 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, while also eliminating the bubbles otherwise produced by an open circuit system. The latter advantage over other systems is useful for covert military operations by frogmen, as well as for undisturbed observation of underwater wildlife. A rebreather is generally understood to be a portable apparatus 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 supp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life-support System
A life-support system is the combination of equipment that allows survival in an environment or situation that would not support that life in its absence. It is generally applied to systems supporting human life in situations where the outside environment is hostile, such as outer space or underwater, or medical situations where the health of the person is compromised to the extent that the risk of death would be high without the function of the equipment. In human spaceflight, a life-support system is a group of devices that allow a human being to survive in outer space. US government space agency NASA, and private spaceflight companies use the phrase "environmental control and life-support system" or the acronym ECLSS when describing these systems. The life-support system may supply air, water and food. It must also maintain the correct body temperature, an acceptable pressure on the body and deal with the body's waste products. Shielding against harmful external influences ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Circuit (1978 Film)
''Closed Circuit'' () is a 1978 Italian made-for-television mystery 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. Plot The film begins with various people attending a movie screening and the staff getting ready. Some audience members exhibit unusual behavior, such as the secret lovers in a back row or the man who uses the restroom for a suspiciously long time. There are men, women and children in the movie theater. A western is being shown. The movie is not age-restricted, as the lady at the box office explains to visitors. During the screening, a man who had sat down next to a young couple is shot dead. The incident occurs at the end of the western, when two gunslingers fight a duel and shots are fired. It is unclear who shot the man in the movie the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Circuit (2013 Film)
''Closed Circuit'' is a 2013 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 public tria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Circuit
An electrical network is an interconnection of electrical components (e.g., battery (electricity), batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, Electrical resistance and conductance, resistances, inductances, capacitances). An electrical circuit is a network consisting of a closed loop, giving a return path for the current. Thus all circuits are networks, but not all networks are circuits (although networks without a closed loop are often referred to as "open circuits"). A resistive network is a network containing only resistors and ideal current and voltage sources. Network analysis (electrical circuits), Analysis of resistive networks is less complicated than analysis of networks containing capacitors and inductors. If the sources are constant (Direct current, DC) sources, the result is a DC network. The effective resistance and current dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Circuit (album)
''Closed Circuit'' is the sixth and final album by New Zealand composer Peter Jefferies, released on October 23, 2001 through Emperor Jones. Track listing Personnel *Michael Hill – engineering Engineering is the practice of using natural science, mathematics, and the engineering design process to Problem solving#Engineering, solve problems within technology, increase efficiency and productivity, and improve Systems engineering, s ... * Peter Jefferies – vocals, guitar, bass guitar, drums, percussion, piano, keyboards, production, engineering *Chris Smith – guitar *Lewis Boyes – guitar *Mark Cass Stevens – guitar, acoustic guitar, bass guitar *Jerry Tubb – mastering References {{DEFAULTSORT:Closed Circuit (album) 2001 albums Peter Jefferies albums ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
