Kemerovo State University Research Articles

Camel scenes in the rock art of the Minusinsk Basin

102 Despite the fact that rock art sites in the Minusinsk Basin have been studied for more than a century, new images and even whole complexes are still being discovered in this region. Petroglyphs have recently been discovered at Bolshoi Ulaz Mount (Leontiev, Miklashevich, Mukhareva, 2005), at Lisichia Mount (Kovaleva, 2005), etc. Regretfully, many of the petroglyphs are in a poor state of preservation. Whilst some are partly destroyed others have been totally obliterated. As a result, it is often diffi cult to piece together a true picture of the “original” site. In such cases, archival and museum materials (such as drawings and traces of images made by scholars, artists, and individuals engaged in regional studies) are of great value. Sources of this kind contain traces of images from the Sulek rock art site that are now missing. Drawings of the rock art at Sulek located in the Minusinsk Basin are well known due to published materials collected by J.R. Aspelin’s expedition in 1897 (Appelgren-Kivalo, 1931). However, few are fully aware of the site’s poor state of preservation which is heavily spoiled by recent engravings and inscriptions which overlap the ancient images. Hence, the petroglyphs here have mostly been studied with the help of traces and drawings made by scholars in the past. In this respect, the drawings made by artist V.F. Kapelko who has been investigating rock art sites in the region since the 1970s are of particular importance. Although Kapelko’s drawings cannot always be considered accurate copies of the Sulek images, they do indicate images and compositions that had either not been noted earlier or that are presently damaged and missing. During the course of fi eld work conducted at Sulek by V.F. Kapelko in the 1980s and members of the Siberian Association for the Study of Prehistoric Art under the 2002 – 2006 UNESCO DOI: 10.1134/S1563011007040093 A.N. Mukhareva Kemerovo State University, Krasnaya 6, Kemerovo, 650043, Russia E-mail: mukhareva@mail.ru

Russian Federation Ministry of Education Russian Academy of Sciences Kemerovo State University Russian Physical Society Institute of Physical Chemistry, Russian Academy of Sciences Kemerovo Oblast Administration Institute of Solid State Chemistry and Mechanochemistry, Russian Academy of Sciences IX International Conference on Physicochemical Processes in Inorganic Materials (September 22–25, 2004)

Russian Federation Ministry of Education Russian Academy of Sciences Kemerovo State University Russian Physical Society Institute of Physical Chemistry, Russian Academy of Sciences Kemerovo Oblast Administration Institute of Solid State Chemistry and Mechanochemistry, Russian Academy of Sciences IX International Conference on Physicochemical Processes in Inorganic Materials (September 22–25, 2004)

Факультет филологии и журналистики Кемеровского государственного университета

Факультет филологии и журналистики Кемеровского государственного университета

Heavy metals azide radiation chemical decomposition—V. Peculiarities of radiation-induced processes in cadmium azide

Radlahon-chemical decomposition of a number of heavy metal azldes (HMA) has been studied in a series of research works carried out in Kemerovo State University Regularities of radlolysls and radmtion-lnduced processes in Sliver azlde (Ryabykh, 1984a, 1984b, 1985b, Ryabykh et al., 1983, 1986, Ryabykh and Meshkov, 1986, Zakharov et al., 1980) have been studied m greater detail. In addition to decomposition kinetics and topography the processes of electron subsystem excitaUon, electron excitation migration and locahzation, transformation in a crystal lattice have been studied. Lead (Zakharov et al., 1968, 1971) and tallium (Ryabykh et al , 1984a) azlde radlolys~s has been investigated most thoroughly. HMA radlolysls appeared to have certain pecuharrues, 1.e. formation and entrapment within the crystal of a large amount of radiolysls product--molecular mtrogen in the bulk of a crystal, a high degree of decomposmon m the stationary regime at the temperature of hquld nitrogen when f avadabdlty of structural changes when a certain crmcal degree of decomposmon is reached and others Little is known about cadmium azide so far because of experimental difficulties when dealing with at Cadmium azide undergoes radiolysls readdy, ages quickly, it resulting in uncontrolled change of its properties That is why there is httle ewdence as far as physlco-chemlcal properties of cadmmm azide are concerned It is known to be soluble in water, to have density 3.24 g cm -3 at 20°C, its meltmg point is 291°C, it detonates at 350°C, its heat of decomposmon by explosion is 558-625 cal.g -~ (Bagal, 1975). It has an orthorhomblc crystal structure with the following parameters: Z = 8, a = 7 82, B = 6.46, c = 16.04 (Basslere, 1937). When compared with other HMA cadmium azlde is characterized by its lesser electroconductwlty ( ~ 10-Ja Ohm~ .cm~ ) and a greater band gap [in view of its absorption edge position in optical spectra (Deb, 1969, 1970) m cadmmm azlde Eg=5.5eV] According to these characteristics cadmium azlde differs greatly from lead, sdver and thalhum azldes whose electroconductlvmes are 10 -110hm-~-cm -1, and Eg = 3-4 eV. Thus, it can be stated that cadmium azide differs substantially from other investigated HMA as far as their physlco-chemlcal properties are concerned: ionlzatlon processes in it must be more energy-intensive because of Its larger band gap; exciton decomposition into ionic defects can also take place since exclton energy must be great enough--as much as 5 eV; diffusion processes in an 1on subsystem are hindered even at room temperature. All this makes the study of cadmium azlde radlolysls especially interesting.

The light stimulated charge carrier transfer in silver azide

physica status solidi (a)Volume 80, Issue 2 p. K157-K160 Short Note The light stimulated charge carrier transfer in silver azide Yu. Yu. Sidorin, Yu. Yu. Sidorin Kemerovo State University Search for more papers by this authorYu. A. Zakharov, Yu. A. Zakharov Kemerovo State University Search for more papers by this author Yu. Yu. Sidorin, Yu. Yu. Sidorin Kemerovo State University Search for more papers by this authorYu. A. Zakharov, Yu. A. Zakharov Kemerovo State University Search for more papers by this author First published: 16 December 1983 https://doi.org/10.1002/pssa.2210800247Citations: 1 Krasnaya 6, 650043 Kemerovo, USSR. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume80, Issue216 December 1983Pages K157-K160 RelatedInformation