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X
X
X The letter used by the
CCITT to categorize standards relating to data communications over digital circuits; the number following the letter identifies a particular standard. Some of the more important standards in the X-series are listed.
X3
PAD control;
X25 data signaling between the equipment associated with the
PTT and the user;
X28 communication between a PAD and an
ASCII device;
X29 communication between two PADs;
X75 communication between networks using X25;
X121 standards for
addressing in an X25 network;
X400 message handling services: all standards in the range X400 to X499 relate to various aspects of message handling;
X500 directory services: all standards in the range X500 to X599 relate to various aspects of directory services.
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Newspaper article from: New Haven Register; 6/12/2009; ; 591 words
; ...Awards Program at 2 p.m. June 20 at the Adanti Center of Southern Connecticut State University. The guest speaker will be Scot X. Esdaile, president of the Connecticut State National Association for the Advancement of Colored People. The 2009 Community...
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 "Albany Times Union (Albany, NY)")
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X-TRA,X-.(LIFE & LEISURE)
Newspaper article from: Albany Times Union (Albany, NY); 5/18/2003; 700+ words
; Byline: PHIL KLOER Cox News Service - All these X's are getting X-cessive. The No. 1 movie is ``X2: X-Men United,'' at least until ``Matrix Reloaded'' opens Wednesday. (Ending with X...
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X Inside Introduces New High-Performance WIndows 95 X Server; Accelerated X for Windows 95 Offers Local Client Support and 20 Percent Greater Performance Than Competitive Products.
Business Wire; 9/19/1995; 700+ words
; SAN JOSE, Calif.--(BUSINESS WIRE)--Sept. 19, 1995--X Inside Inc., a leading supplier of Intel-based UNIX X servers, announced the availability of Accelerated X for Windows '95, a streamlined PC X server that delivers maximum...
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X chromosome inactivation: heterogeneity of heterochromatin.(Report)
Magazine article from: Biochemistry and Cell Biology; 10/1/2008; ; 700+ words
; Features of the inactive X chromosome In the nearly half a century since Mary Lyon published her hypothesis of X inactivation (Lyon 1961), many features that distinguish the active X (Xa) from the inactive X (Xi) have been described...
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X-Rite announces contract for X-Scan densitometers.
PR Newswire; 9/27/1990; 700+ words
; X-RITE ANNOUNCES CONTRACTS FOR X-SCAN DENSITOMETERS GRAND RAPIDS, Mich., Sept. 27 /PRNewswire/ -- X-Rite, Incorporated (NASDAQ-NMS: XRIT) today said it has received more than $1 million in orders for its X-Scan densitometer...
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X-Mine Announces Platform License and Collaboration Agreement with BioCardia.
Business Wire; 11/12/2001; 700+ words
; ...Calif.--(BW HealthWire)--Nov. 12, 2001 X-Mine Inc. announced today that it has entered...collaboration agreement with BioCardia Inc. for X-Mine's data mining and knowledge discovery platform X-Miner. Terms of the agreement encompass early...
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X-Ray Industries expanding through acquisitions, on-site training program.(News)(Company overview)
Magazine article from: Crain's Detroit Business; 11/26/2007; ; 700+ words
; ...Byline: Tom Henderson Business is booming for X-Ray Industries Inc., a Troy-based company...acquisition before the end of the year. X-Ray Industries also is increasing its local...Technical Center vocational school. Last year, X-Ray Industries purchased the building behind...
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X Initiative Honors DuPont Photomasks With First Annual X Achievement Award; Supply-Chain Consortium Marks First Anniversary With Award, Announcement of Newly Elected Steering Committee.
PR Newswire; 6/11/2002; 700+ words
; NEW ORLEANS -- The X Initiative, a semiconductor supply-chain consortium chartered...with accelerating the availability and fabrication of the X Architecture, today awarded its first annual X Achievement Award to DuPont Photomasks, Inc. in recognition...
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X-rays, gamma rays added to list of human carcinogens.(News)
Magazine article from: Internal Medicine News; 4/1/2005; ; 700+ words
; The addition of x-rays and gamma rays to a national list of...tests. Three types of ionizing radiation--x-rays, gamma rays, and neutrons--were...contend that there is a risk associated with x-ray or gamma ray exposure at any level...
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X-PRO Delivers Secure Encrypted IP-to-IP Communications.
PR Newswire; 1/27/2004; 700+ words
; ...Xten Networks, publisher of the award winning X-PRO softphone, announced today that it has released the X-Cipher Secure Voice Service - providing Secure Encrypted Communications via X-PRO with Encrypted Voice. X-PRO with Encrypted...
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X ray
Book article from: The Columbia Encyclopedia, Sixth Edition
X ray invisible, highly penetrating electromagnetic...than visible light. The wavelength range for X rays is from about 10 -8 m to about 10 -11...times; 10 19 Hz (1 Hz = 1 cps). Production of X Rays An important source of X rays is synchrotron...
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X-ray astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
X-ray astronomy study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that the sun emits X rays. Since X rays could not be observed...
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X-ray
Book article from: Medical Discoveries
X-ray X-rays are electromagnetic waves, like light waves, but with a wavelength about 1,000 times smaller. Because of this very short wavelength, X-rays can easily penetrate low-density material, such as flesh. They are...
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X Chromosome
Book article from: Genetics
X Chromosome The X chromosome occupies an exceptional place in the mammalian genome . Together with the Y chromosome, the X chromosome differentiates the sexes. Males have one X chromosome and a Y...
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X-Ray Glasses
Book article from: How Products Are Made
X-Ray Glasses Background X-ray glasses are a novelty product designed to create the illusion that...papermaking, printing and gluing. Inspired by the real discovery of x rays by nineteenth century scientists, x-ray glasses were introduced...
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