X- Ray diffraction is a tool for the investigation of the fine structure of matter. This technique had its beginning in von Laue's' discovery in 1912 that crystals diffract x-rays, the manner of the diffraction revealing the structure of the crystal.
Ref: 120827/2006-09-24

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Keywords from 'X- Ray diffraction' until 'Zulu'
Lexicon from 'X- Ray diffraction' until 'Zoom lens'
Keywords from 'X- Ray diffraction' until 'Zulu'
Keywords from 'X- Ray diffraction' until 'Zulu'
Lexicon from 'X- Ray diffraction' until 'Zoom lens'

X-Ray refers to the part of the electromagnetic spectrum whose radiation has somewhat greater frequencies and smaller wavelengths than those of ultraviolet radiation; namely, that radiation lying between ultraviolet and gamma-ray in the electromagnetic spectrum. It is a type of high-energy radiation. In low doses, x-rays are used to diagnose diseases by making pictures of the inside of the body . In high doses, x-rays are used to treat cancer.

-see also:
"X-ray" is in the HS Code "3006.30"
  - - Opacifying preparations for X-ray examinations; diagnostic reagents designed to be administered to the patient

"X-ray" is in the NACE Code "33.10"
  Manufacture of medical and surgical equipment and orthopaedic appliances
  ... manufacture of apparatus based on the use of X-ray s or alpha, beta or gamma radiation, whether or n ...

"X-ray" is in the ISIC Code "3311"
  Manufacture of medical and surgical equipment and orthopaedic appliances
  - manufacture of apparatus based on the use of X-ray s or alpha, beta or gamma radiation, whether or ...

"X-ray" is in the NAICS Code "33441"
  Semiconductor and Other Electronic Component Manufacturing
  · Manufacturing X-ray tubes-are classified in Industry 33451, Navigational, Measuring, Electr ...
Ref: 86273/2006-09-13

X-ray refers to an image produced by sending a beam of X-rays - very high energy electromagnetic radiation) through the body. Different tissues in the body have different densities and absorb and deflect the X-rays differently. A camera records on photographic film the varying levels of X-rays that have passed through the body.
X-rays use invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs on film. Standard x-rays are performed for many reasons, including diagnosing tumors or bone injuries.

X-rays are made by using external radiation to produce images of the body, its organs, and other internal structures for diagnostic purposes. X-rays pass through body structures onto specially-treated plates (similar to camera film) and a "negative" type picture is made (the more solid a structure is, the whiter it appears on the film).

-see also:
"X-ray" is in the HS Code "3701.10"
  - - For X-ray

"X-ray" is in the NACE Code "33.10"
  Manufacture of medical and surgical equipment and orthopaedic appliances
  ... manufacture of apparatus based on the use of X-ray s or alpha, beta or gamma radiation, whether or n ...

"X-ray" is in the ISIC Code "3311"
  Manufacture of medical and surgical equipment and orthopaedic appliances
  - manufacture of apparatus based on the use of X-ray s or alpha, beta or gamma radiation, whether or ...

"X-ray" is in the NAICS Code "334411"
  Electron Tube Manufacturing
  · Manufacturing X-ray tubes-are classified in U.S. Industry 334517, Irradiation Apparatus Man ...
Ref: 120838/2006-09-27

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X-ray photoelectron spectroscopy (XPS )
x-rays (A x-rays are high-energy electromagnetic ...)
Diskussionsforum (forum)
Apparatus (Apparatus refers to an appliance or device ...)

- X-ray photoelectron spectroscopy (XPS) : X-ray photoelectron spectroscopy (XPS) is a surface sensitive analytic tool used to study the surface composition and electronic state of a sample. XPS is also often referred to as ESCA, short for Electron Spectroscopy for Chemical Analysis.
Ref: 122295/2006-09-19

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X-ray (X-Ray refers to the part of the electromagnetic ...)
Photo ( (Einer der 2003 am h?ufigsten verwendeten ...)
XPS (XPS is the acronym of X-ray photoelectron ...)

Alternative Spellings (Synonyms): X-rays
Xanthates are formed by combining alcohol with carbon disulfide in the presence of an alkali metal - namely lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), or francium (Fr). The term is derived from the Greek word xanthos, for yellow. The most important group of xanthates are the sodium salts produced from cellulose.

These materials are processed to form rayon and cellophane. Some xanthates are used as flotation agents for the concentration of certain metal ores. Human and environmental health risks depend on the chemical xanthate in question.
Ref: 122296/2006-09-19

Xanthates are the salts and esters of a xanthic acid, ROC(=S)SH or O-esters of dithiocarbonic acid where R is any organic residue. The ethyl ester CH3CH2OC(=S)SH is also the parent compound xanthic acid. Many xanthates have a yellow colour, which gives the compound its name derived from xanthous, meaning yellow. IUPAC does not recommend the use of this term.

Xanthates can be produced from carbon disulfide, and are used as flotation agents in mineral processing. They are intermediates in the Chugaev elimination. Xanthates are also used to control radical polymerisation under the RAFT process , also termed MADIX.
Ref: 86274/2006-09-13

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Cellophane (Cellophane is a thin, flexible, transparent film ...)

The term xenon may refer to the following: 

Xenon light bulb is described as light bulb which is made from xenon. They are known to last up to 10,000 hours. Xenon bulbs can be touched with a bare hand unlike halogen bulbs. They are commonly used in path lighting. Two (2) types of xenon light bulbs are the festoon bulbs and LED.
Ref: 122558/2006-10-10

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Festoon bulb (Festoon bulb is a type of xenon light bulb which ...)
Xenon (Xenon is characterized as a rare gas used in ...)

Alternative Spellings (Synonyms): Bulbs, bulbs
XPS is the acronym of X-ray photoelectron spectroscopy.
Ref: 122534/2006-10-07

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X-ray photoelectron spectroscopy (XPS)
Xylenol is characterized as an arene compound with two methyl groups and a hydroxyl group. 6 isomers exist of xylenol of which 2,6-xylenol with both methyl group in an ortho position with respect to the hydroxyl group is the most important.

The name xylenol is a contraction of two similar compounds xylene and phenol. Xylenols, together with cresols and cresylic acid, are an important class of phenolics with great industrial importance. Xylenols are used as pesticides and used in the manufacture of antioxidants. Xylenol orange is a redox indicator built on a xylenol skeleton. It is also called dimethylphenol
Ref: 122297/2006-09-19

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Xylenols (Xylenol or dimethylphenol is an arene compound ...)
Bells (Bell is described as a resonant metal object, ...)
Indicator (Indicator is identified as an observed value ...)

Xylenol or dimethylphenol is an arene compound with two methyl groups and a hydroxyl group. 6 isomers exist of xylenol of which 2,6-xylenol with both methyl group in an ortho position with respect to the hydroxyl group is the most important. The name xylenol is a contraction of two similar compounds xylene and phenol.

-see also:
"Xylenols" is in the HS Code "2907.14"
  - -- Xylenols and their salts
Ref: 86275/2006-09-13

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Methyl (Methyl is described as a poisonous alcohol made ...)
Xylenol (Xylenol is characterized as an arene compound ...)

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