Zobrazeno 1 - 10
of 34
pro vyhledávání: '"N. E. Shchepina"'
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Technical Physics. 66:1353-1357
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac1f414f44ba5fb9a73b8b93a21e244c
https://doi.org/10.1134/s106378422108017x
https://doi.org/10.1134/s106378422108017x
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Russian Metallurgy (Metally). 2021:1471-1476
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31c5b9fefddce0ba1ba69a2b17cad495
https://doi.org/10.1134/s0036029522010116
https://doi.org/10.1134/s0036029522010116
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Physics of Metals and Metallography. 121:968-995
Differential scanning calorimetry belongs to a group of rather unique study methods, which makes it possible to investigate in situ the regularities of structural and phase transitions in metallic alloys within a broad range of temperatures (from –
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec4892719b7acd70280607a9dbd102c2
https://doi.org/10.1134/s0031918x20100117
https://doi.org/10.1134/s0031918x20100117
Autor:
N. E. Shchepina, L. V. Spivak
Publikováno v:
Technical Physics. 65:1100-1105
Polymorphic transformations in iron of differing purity and zirconium iodide have been studied by the high-resolution calorimetry method. The hypothesis has been made that polymorphic transformations in zirconium, unlike those in iron, are governed b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27b3023ccd44288d0000b393bb2af15e
https://doi.org/10.1134/s1063784220070221
https://doi.org/10.1134/s1063784220070221
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Russian Metallurgy (Metally). 2020:583-588
Data on the calorimetric effects during the structural phase transformations in iron–carbon alloys (steels) are presented. No relationships are revealed between temperature points A3 (Am) and the calorimetric effect temperatures during steel therma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40d6658d814834dc81df12765346b60d
https://doi.org/10.1134/s0036029520050146
https://doi.org/10.1134/s0036029520050146
Publikováno v:
Radiochemistry. 62:101-106
A study of ion-molecular reactions of fluoro-substituted phenyl cations with benzopyridine derivatives demonstrated the following: (a) at present only the nuclear-chemical method enables the reaction of a direct phenylation of the nitrogen atom in be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b781dfd321e7c38507aade3bf8669a2
https://doi.org/10.1134/s1066362220010130
https://doi.org/10.1134/s1066362220010130
Thermal Effects Due to Crystallization of Alloys with Unlimited and Limited Solubility of Components
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Technical Physics. 64:1319-1323
High-resolution differential scanning calorimetry has been used to study the crystallization of binary alloys with unlimited and limited solubility of their constituents. A sharp and intense emission of crystallization heat has been invariably observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d4b04ddcbf535cef8e627151716907e
https://doi.org/10.1134/s1063784219090184
https://doi.org/10.1134/s1063784219090184
Autor:
N. E. Shchepina, L. V. Spivak
Publikováno v:
Physics of the Solid State. 61:1347-1353
The melting and crystallization processes in some binary alloys based on the Ag–Cu model system have been studied by high-resolution differential scanning calorimetry. The crystallization and melting is found to be accompanied by heat flow jumps as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56f369c0328242f4f00086e2d4068112
https://doi.org/10.1134/s1063783419080262
https://doi.org/10.1134/s1063783419080262
Publikováno v:
Radiochimica Acta. 108:105-111
Quinazoline derivatives are well known to have a diverse array of therapeutic activities. Unfortunately, “classic” chemical synthesis does not provide an opportunity for the formation of N-phenyl quaternary 1,3-diazinium compounds. A devised nucl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b7895614977d72c521509dd4aa14c7
https://doi.org/10.1515/ract-2018-2970
https://doi.org/10.1515/ract-2018-2970
Autor:
L. V. Spivak, N. E. Shchepina
Publikováno v:
Physics of the Solid State. 60:2598-2603
Using high-performance differential scanning calorimetry, crystallization processes in pure metals and some binary alloys on their basis have been investigated. Heat flow jumps are detected at crystallization upon reaching the liquidus lines. It is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ff245b8e0f0721af0471bfb4cb34011
https://doi.org/10.1134/s1063783418120272
https://doi.org/10.1134/s1063783418120272