Zobrazeno 1 - 10
of 58
pro vyhledávání: '"T. V. Kovaleva"'
Publikováno v:
Metalurgija, Vol 63, Iss 1, Pp 143-145 (2024)
The paper shows the results of studies in searching for a binder for briquetting finely dispersed dust (FDD) of ferroalloy production of the Kazakhstan content. The fractional composition and shape of FDD particles were studied. Liquid glass and caus
Externí odkaz:
https://doaj.org/article/70f2a1b16e3f42c7bf591f3a960a16c2
Autor:
E. Yu. Salita, T. V. Kovaleva
Publikováno v:
Омский научный вестник, Vol 1 (185), Pp 71-75 (2023)
The introduction of twelve-pulse rectifiers instead of six-pulse ones at traction substations of urban electric transport leads to an increase in technical and economic indicators, energy savings, a decrease in leakage current. These result in el
Externí odkaz:
https://doaj.org/article/dcd8ff710734468a83fef7bc45406959
Publikováno v:
Metalurgija, Vol 62, Iss 3-4, Pp 471-473 (2023)
The Nb effect on long-term strength of Cr18Ni10Ti steel is considered. There is substantiated selecting this steel for obtaining cast parts for metallurgical furnaces. It is shown that introduction of Nb in the amount of 1 % into steel of a given com
Externí odkaz:
https://doaj.org/article/6f655f82196d4cc780ccf6572269bbec
Autor:
T. V. Kovaleva
Publikováno v:
Дискурс, Vol 7, Iss 4, Pp 17-32 (2021)
Introduction. The aim of the article is to show the socio-philosophical basis of humanitarian expertises and to demonstrate an important role of these technologies in the life of society and the world for solving of current socio-cultural dilemmas. W
Externí odkaz:
https://doaj.org/article/6ab879505d9242859c0e6a845e3b66fa
Publikováno v:
Metalurgija, Vol 60, Iss 1-2, Pp 97-100 (2021)
One of the ways to produce high-quality castings at relatively inexpensive costs is lost foam casting. However, the existing problem of surface carburization due to the burnout of the polystyrene pattern and general contamination of the near-surface
Externí odkaz:
https://doaj.org/article/a8d14f61f64e4e629629477e0c28afab
Publikováno v:
Омский научный вестник, Vol 4 (172), Pp 32-35 (2020)
The article provides an analysis of electromagnetic processes in an alternating current traction network of electric railways taking into account its distributed parameters that determine wave processes, which are one of the causes of resonance ph
Externí odkaz:
https://doaj.org/article/bb34d5f305994e518208aa85241dd7aa
Publikováno v:
Омский научный вестник, Vol 3 (165), Pp 23-27 (2019)
The article considers a mathematical model of the AC traction power supply system taking into account stationary and nonstationary wave processes. The model allows you to analyze the effect of system parameters on electromagnetic processes at its
Externí odkaz:
https://doaj.org/article/5528eb3b439043c2a70cd5ead2fe19fe
Autor:
T. V. Kovaleva
Publikováno v:
Дискурс, Vol 5, Iss 3, Pp 5-11 (2019)
Introduction. The aim of the article is to show medicine as a multifaceted science influenced by social and cultural aspects that determine its structure and national features.Materials and methods. Historical, fiction and intellectual proses are cho
Externí odkaz:
https://doaj.org/article/a92820e18e1b4bac9afd543db999532d
Publikováno v:
Metalurgija, Vol 58, Iss 3-4, Pp 295-298 (2019)
The paper deals with the influence of shell forming modes on some parameters of castings: the surface and internal defects. The degree of roughness and stress concentration were determined on the castings obtained under production conditions. Accordi
Externí odkaz:
https://doaj.org/article/9abcf48703c24adba4ca079e0d23b5e3
Autor:
E. A. Moskvitina, E. G. Tyuleneva, A. V. Samorodova, V. D. Kruglikov, S. V. Titova, S. M. Ivanova, T. V. Kovaleva, G. B. Anisimova
Publikováno v:
Проблемы особо опасных инфекций, Vol 0, Iss 1, Pp 13-20 (2017)
Analysis of epidemiological situation on cholera around the world has demonstrated downward trend in morbidity rates in 2016; annual average decline being 3.907 % (by reference to 2007). Comparative assessment of monthly incidence in 2015 and 2016 sh
Externí odkaz:
https://doaj.org/article/2a92bdeb7fd7406ebf5cefaaf9838e48