| crystal |
A mineral in which the systematic internal arrangement of atoms is outwardly reflected as a latticework of repeated three-dimensional units that form a geometric solid with a surface consisting of symmetrical planes.
출처: college.hmco.com/geology/resources/geologylink/glo...
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| crystal |
the piezoelectric element(s) in a stack which expands and contracts in an alternating (charged) electrical field, thus inducing vibration.nbsp; In low-powered ultrasonic cleaning tanks, crystals are sometimes bonded directly to the diaphragm (tank bottom or side wall).
출처: home.att.net/~Berliner-Ultrasonics/us-gloss.html
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| crystalline |
Having each element's atoms bonded in a regular, repeating structure in space.
출처: www.csa.com/hottopics/hydrogen/gloss.php
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| crystal |
In biology refers to large, regular assembly of macromolecules such as proteins and nucleic acids. It is possible to isolate and purify proteins or DNA in large quantity and let them crystallize in saturated solution. These protein or DNA crystals contain millions of regularly aligned units that allow the determination of the electron distribution from X-ray diffraction studies. ...
출처: www.whatislife.com/glossary.htm
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| crystallography |
The application of high-powered beams of energy, often X-rays, to discern the shapes formed by a crystallized sample of molecules. This is the technique used by Watson and Crick to discover the double helix shape of DNA, and is still in use 50 years later to determine the shapes of proteins.
출처: www.med.umich.edu/genetics/glossary/
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