SEARCHING FOR RESERVE FOR EXPANSION OF THE POSSIBILITIES TWO-ENERGY RADIOGRAPHY
Theoretical analysis and experimental studies show that the two-energy detection method not only allows one to detect organics on the background of metal, but also substantially increases (by 3-5 times) the detection ability of the system as a whole, especially if parameters of the S-PD pair are optimized, in particular, when ZnSe(Te) is used in the low-energy circuit. A possibility to distinguish, in principle, between substances with insignificant differences in atomic number has been theoretically proven – by transition to multi-energy radiography. 3Dimaging has been realized using S-PD detector arrays. Results of experimental studies of detector arrays S-PD used for X-ray digital radiography have shown that there exist further possibilities to increase spatial resolution of this system up to 2-3 line pairs per mm.
Determining chemical compositions by the method of multi-energy radiography
A theoretical model of multi-energy radiography is proposed and two approaches—“synthesis” and “analysis”—to studying the structure of objects by this method are considered. It is theoretically proved that the atomic numbers of elements and the other parameters of chemical composition of a sample can be restored from the multichannel absorption data. The multi-energy radiography approach and possible generalizations open wide prospects for both basic experimental investigations and nondestructive testing applications.
Corpus Linguistics in Legal Discourse
There are many different ways in which modern Corpus Linguistics can be used to enrich and broaden our understanding of legal discourse. Based on the central principle of co-occurrence and co-selection in language construction, this paper reviews current applications of Corpus Linguistics in the area of legal discourse focusing on issues ranging from phraseology, variation in legal discourse, legal translation, register and genre perspectives on legal discourse, legal discourse in forensic contexts to evaluative language in judicial settings. It revisits the notion of ‘corpus’ and it highlights the relevance of various types of legal corpora and computer tools in legal linguistic research.