polytype


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polytype

(ˈpɒlɪˌtaɪp)
n
1. (Chemistry) crystallog a crystal occurring in more than one form
2. (Printing, Lithography & Bookbinding) printing a printing cast
vb (tr)
(Printing, Lithography & Bookbinding) printing to produce by use of a polytype
References in periodicals archive ?
Esteemed speakers sharing their innovations include Bruckner Maschinenbau, Alok Masterbatches, SRF, Vetaphone, Polytype Converting and Sabic, it stated.
In this case, the most intense peaks in XRD spectrum were identified as related to the (002), (006), and (008) planes of Pb[I.sub.2] of 4H polytype. It should be noted that other peaks of lower intensity related to the (101), (004), (102), (012), (104), (110), (204), and (116) planes are also observed.
Currently, power diodes based on silicon carbide made by diffusion technology have maximal breakdown voltage ~700 V for 4H polytype and ~1000 V for the 6H polytype of silicon carbide [12, 13].
Petersburg Electrical Engineering University) summarizes available data on radiation effects formed in 6H-, 4H-, and 3C-Sic under irradiation with electrons, neutrons, and some kind of ions, and the effects of intrinsic defects and radiation defects in the SiC crystal lattice on the properties of the epitaxial layers themselves, such as their doping level and polytype homogeneity.
[17] Xiaofei Xing, Guojun Wang, Jie Li, "Polytype target coverage scheme for heterogeneous wireless sensor networks using linear programming," Wireless Communications and Mobile Computing, vol.14, no.14, pp.1397-1408, October, 2014.
Pilot version of the Techma-4 printing press in Fribourg, Switzerland was recently revealed by Wifag-Polytype, which came into existence in June, with the merging of Wifag and Polytype Converting.
He had clients among the poets and fiction writers of high-bohemian Greenwich Village and, first at Polytype Press on West 8th Street in Manhattan and subsequently at Golden Eagle Press in suburban Mt.
cervi was polytype. For example, it contained complete and incomplete direct repeats, as well as incomplete inverted repeats, and no identical direct or inverted repeat was found between the Schistosoma spp.
"The problem is that there are over 200 different types of crystal that you can grow, and you can easily change from one polytype to another if you're not careful."
The simulations show that the distribution of the electrical field strength by the increase of reverse biasing moves towards the cubic polytype (n-3C-SiC) side of the heterojunction and therefore by the charge carriers transport the tunneling mechanism increases compared to thermal emission.
Other areas examined are the growth of 4H-SiC single crystals on 6H-SiC seeds with an open backside by PVT method, characterization of 6H-SiC single crystals using different source materials, observation of polytype switches during SiC PVT bulk growth by high energy X-ray diffraction, and nucleation and growth of 3C-SiC single crystals from the vapor phase.