Zobrazeno 1 - 10
of 43
pro vyhledávání: '"R. Nikiforov"'
Publikováno v:
Journal of Engineering Science and Technology Review, Vol 8, Iss 6, Pp 49-53 (2015)
A thermo-mechanical model of linear friction welding has been developed. The temperature distribution during the heating process was determined using a one-dimensional model. The distribution of temperature and stress field during the forging phase
Externí odkaz:
https://doaj.org/article/753f90c1c5704764a846b37f94741ec8
Publikováno v:
Journal of Engineering Science and Technology Review, Vol 8, Iss 6, Pp 57-60 (2015)
In this paper mathematical model was developed for definition of thermal-welding cycle influence on welding deformations distribution in flat samples of austenitic steels after TIG welding and developed recommendations to reduce the welding deforma
Externí odkaz:
https://doaj.org/article/e55d8f050eba49a99b3a63bfc9b4f4d5
Autor:
V. Bychkov, R. Nikiforov
Publikováno v:
Journal of Engineering Science and Technology Review, Vol 8, Iss 6, Pp 54-56 (2015)
The local heat treatment of girth welds can be optimized by the criterion of minimum temperature drop using computer modeling
Externí odkaz:
https://doaj.org/article/2419df91736942a090fdd9f881db1d72
Publikováno v:
Journal of Engineering Science and Technology Review, Vol 7, Iss 5, Pp 9-11 (2014)
The effect of thermal-strain cycle on residual strains in thin-walled circular seams of cylindrical shells using TIG butt welds was studied. Estimates were calculated using numerical modelling. The structure was made of corrosion-resistant austenit
Externí odkaz:
https://doaj.org/article/26b8779bb3c14b0aaa09e9effc556b67
Autor:
A. R. Nikiforov
Publikováno v:
Plant Biology and Horticulture: theory, innovation. 1:114-122
Populations of obligate petrophytes of the Mountain Crimea Heracleum ligusticifolium M. Bieb. (Apiaceae) and Silene jailensis N.I. Rubtzov (Caryophyllaceae) are distinguished by their small number due to the internal mechanism of their self-regulatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7e094876e28bd3bc13448496660163a
https://doi.org/10.36305/2712-7788-2020-4-157-114-122
https://doi.org/10.36305/2712-7788-2020-4-157-114-122
Publikováno v:
Solid State Phenomena. 303:169-174
The article is devoted to the modeling of structural-phase transformations during automatic MIG welding of high-strength steel X80 in a welded seam and the heat affected zone in the ANSYS / Mechanical package. Based on the results of numerical modeli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::728caae83a734e86efdfb238bfbfaee8
https://doi.org/10.4028/www.scientific.net/ssp.303.169
https://doi.org/10.4028/www.scientific.net/ssp.303.169
Autor:
A. R. Nikiforov
Publikováno v:
Plant Biology and Horticulture: theory, innovation. :124-131
A comparative analysis of the vegetation composition in the meadow steppe community and the meadow in the middle in a karst sinkhole was made. The appearance of the meadow, which is formed by its coenogenous elements, is contrasted with the steppe. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::626742101e63ab3a8119344b92fbc70d
https://doi.org/10.36305/0201-7997-2019-149-124-131
https://doi.org/10.36305/0201-7997-2019-149-124-131
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Publikováno v:
Russian Journal of Physiotherapy, Balneology and Rehabilitation. 15:297-301
The objective of the present work was to study variability of cardiac rhythms developing under the influence of the 10 day-long course of low-intensity ultrahigh frequency electromagnetic radiation (UHF EMR). It was shown that the courses of UIHF EMR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc0ecbd77c75cce4ebaf2b2db30cd4fd
https://doi.org/10.18821/1681-3456-2016-15-6-297-301
https://doi.org/10.18821/1681-3456-2016-15-6-297-301
Publikováno v:
Journal of Engineering Science and Technology Review. 8:57-60
In this paper mathematical model was developed for definition of thermal-welding cycle influence on welding deformations distribution in flat samples of austenitic steels after TIG welding and developed recommendations to reduce the welding deformati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a9ed05013330cb60435ec2f22f1ef9b
https://doi.org/10.25103/jestr.086.15
https://doi.org/10.25103/jestr.086.15