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Definity Inc.
Definity may refer to: *Definity (film recorder) * Avaya Definity, the Avaya Definity PBX *Perflutren, with the trade name ''Definity'', is a type of microbubble contrast agent Contrast-enhanced ultrasound (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. ... * Definity Inc., financial company and owns several insurance companies. {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Definity (film Recorder)
Definity is a digital film recorder produced by CCG Digital Image Technology, designed for motion pictures. It succeeded Agfa-Gevaert's film recorder division and was launched in Las Vegas at NAB in 2004. Overview Definity uses a monochrome high resolution LCD panel to record digital sequences onto motion picture film, rather than the analog technologies previously used. Prior to Definity's release, LCD technology was thought to be unsuitable for film recording due to its limitations in bit depth, temporary image retention (TIR), and less saturated colors. Definity's imaging unit uses the sub-pixel structure of the LCD to record anamorphic "CinemaScope" material without sacrificing horizontal image information. By using its anamorphic pixels (with an aspect ratio of 3:1) instead of the standard square pixels, flat widescreen material with an aspect ratio of 2.36:1 can be horizontally compressed on the LCD, resulting in a 1.18:1 image that can be transferred onto film ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avaya Definity
Avaya Holdings Corp., often shortened to Avaya (), is an American multinational technology company headquartered in Durham, North Carolina, that provides cloud communications and workstream collaboration services. The company's platform includes unified communications (UCaaS), contact center other services. The company provides services to 220,000 customer locations in 190 countries. History In 1995, Lucent Technologies was spun off from AT&T, and Lucent subsequently spun off units of its own in an attempt to restructure its struggling operations. ">/sup> Avaya was then spun off from Lucent as its own company in 2000 (Lucent merged with Alcatel SA in 2006, becoming Alcatel-Lucent, which was purchased in turn by Nokia in 2016). It remained a public company from 2000 to 2007. In October 2007, Avaya was acquired by two private-equity firms, TPG Capital and Silver Lake Partners, for $8.2 billion. On January 19, 2017, Avaya filed for Chapter 11 bankruptcy. On December ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perflutren
Contrast-enhanced ultrasound (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. This may be the surface of a small air bubble or a more complex structure. Commercially available contrast media are gas-filled microbubbles that are administered intravenously to the systemic circulation. Microbubbles have a high degree of echogenicity (the ability of an object to reflect ultrasound waves). There is a great difference in echogenicity between the gas in the microbubbles and the soft tissue surroundings of the body. Thus, ultrasonic imaging using microbubble contrast agents enhances the ultrasound backscatter, (reflection) of the ultrasound waves, to produce a sonogram with increased contrast due to the high echogenicity difference. Contrast-enhanced ultrasound can be used to image blood perfusion in organs, measure blo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trade Name
A trade name, trading name, or business name, is a pseudonym used by companies that do not operate under their registered company name. The term for this type of alternative name is a "fictitious" business name. Registering the fictitious name with a relevant government body is often required. In a number of countries, the phrase "trading as" (abbreviated to t/a) is used to designate a trade name. In the United States, the phrase "doing business as" (abbreviated to DBA, dba, d.b.a., or d/b/a) is used, among others, such as assumed business name or fictitious business name. In Canada, "operating as" (abbreviated to o/a) and "trading as" are used, although "doing business as" is also sometimes used. A company typically uses a trade name to conduct business using a simpler name rather than using their formal and often lengthier name. Trade names are also used when a preferred name cannot be registered, often because it may already be registered or is too similar to a name that is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbubble Contrast Agent
Contrast-enhanced ultrasound (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. This may be the surface of a small air bubble or a more complex structure. Commercially available contrast media are gas-filled microbubbles that are administered intravenously to the systemic circulation. Microbubbles have a high degree of echogenicity (the ability of an object to reflect ultrasound waves). There is a great difference in echogenicity between the gas in the microbubbles and the soft tissue surroundings of the body. Thus, ultrasonic imaging using microbubble contrast agents enhances the ultrasound backscatter, (reflection) of the ultrasound waves, to produce a sonogram with increased contrast due to the high echogenicity difference. Contrast-enhanced ultrasound can be used to image blood perfusion in organs, measure blo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
