Free-space focused-beam characterization of left-handed materials

2003 ◽  
Vol 82 (15) ◽  
pp. 2535-2537 ◽  
Author(s):  
Kin Li ◽  
S. J. McLean ◽  
R. B. Greegor ◽  
C. G. Parazzoli ◽  
M. H. Tanielian
Keyword(s):  
Free Space ◽  
Left Handed ◽  
Beam Characterization ◽  
Focused Beam

Free-Space Electromagnetic Characterization of Materials for Microwave and Radar Applications

PIERS Online ◽  
2005 ◽  
Vol 1 (2) ◽  
pp. 128-132 ◽  
Author(s):  
Habiba Hafdallah Ouslimani ◽  
Redha Abdeddaim ◽  
Alain Priou
Keyword(s):  
Free Space ◽  
Radar Applications ◽  
Characterization Of Materials

Characterization of the Asphaltene Onset Region by Focused-Beam Laser Reflectance: A Tool for Additives Screening†

2009 ◽  
Vol 23 (3) ◽  
pp. 1155-1161 ◽  
Author(s):  
Javier Marugán ◽  
José A. Calles ◽  
Javier Dufour ◽  
Raúl Giménez-Aguirre ◽  
José Luis Peña ◽  
...  
Keyword(s):  
Beam Laser ◽  
Laser Reflectance ◽  
Focused Beam

Tx1: a transposable element from Xenopus laevis with some unusual properties

1986 ◽  
Vol 6 (3) ◽  
pp. 933-941
Author(s):  
J E Garrett ◽  
D Carroll
Keyword(s):  
Xenopus Laevis ◽  
Germ Line ◽  
Variable Number ◽  
Target Site ◽  
Nucleotide Sequence Analysis ◽  
Chromosomal Locus ◽  
Stem Loop ◽  
Left Handed ◽  
Transposable Genetic Elements

A family of transposable genetic elements in the genome of the frog, Xenopus laevis, is described. They are designated Tx1. Transposability of the elements was deduced by characterization of a chromosomal locus which is polymorphic for the presence or absence of a Tx1 element. Nucleotide sequence analysis suggested that Tx1 elements show target site specificity, as they are inserted at the pentanucleotide TTTAA in all four cases that were examined. The elements appear to have 19-base-pair (bp) inverted terminal repeats, and they are flanked by 4-bp target duplications (TTAA), although the possibility that they do not create target site duplications is discussed. Tx1 elements have several unusual characteristics: the central portion of each element is comprised of a variable number of two types of 393-bp repeating units; the rightmost 1,000 bp of the element contains separate regions potentially capable of forming bends, left-handed Z-form DNA, and alternative stem-loop structures. Comparisons among single frogs suggest that germ line transposition is relatively infrequent and that variations in numbers of internal repeats accumulate quite slowly at any locus.

scholarly journals Beam characterization of 10-MV photon beam from medical linear accelerator without flattening filter

2017 ◽  
Vol 42 (2) ◽  
pp. 65
Author(s):  
Tomohiro Shimozato ◽  
Yuichi Aoyama ◽  
Takuma Matsunaga ◽  
Katsuyoshi Tabushi
Keyword(s):  
Linear Accelerator ◽  
Photon Beam ◽  
Medical Linear Accelerator ◽  
Beam Characterization ◽  
Flattening Filter
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