Results 21 to 30 of about 19,678 (170)

Dynamic effect on turnouts of cars having wheelsets with thin flanges

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
Geometrical parameters of the “wheelset—rail track” system are mutually related. Currently, a very topical issue is the question of a possible adjustment of the regulatory framework in the “wheelset—rail track” system in order to take into account the ...
B. E. Glyuzberg   +5 more
doaj   +1 more source

Influence of long irregularities of the longitudinal profile on traffic safety under conditions of intensification of the transportation process

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
The key directions of intensification of the transportation process are described and their influence on the infrastructure is indicated. The concept of long irregularities of the longitudinal profile is defined and a method is proposed that allows one ...
V. O. Pevzner   +4 more
doaj   +1 more source

Determination of spacecraft antenna directivity pattern with the use of an Earth-based station

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The problem of defining characteristics of the spacecraft antenna directivity pattern is considered in the paper. The solution of the problem will make it possible to estimate changes of antenna parameters with time.
O. V. Vasyutkina   +4 more
doaj   +1 more source

Application of additive technology of selective laser melting (SLM) in designing a low emission combustion chamber of a gas turbine plant

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The paper deals with the questions of introducing the additive technology of selective laser melting (SLM) into the production of the main structural elements of a combustion chamber for ground-based gas pumping, power and transport gas turbines.
Yu. S. Yeliseev   +6 more
doaj   +1 more source

Determination of the possibility of increasing the between-repair standards of hopper cars (cement carriers)

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2017
In view of gradual changes in the conditions of This article presents the main results of the analytical work maintenance, extensiveness and intensity of the use of freight cars aimed at determining the possibility of increasing the period of opof the ...
S. V. Petrov   +4 more
doaj   +1 more source

Experience in developing a multicomponent reservoir with a thin oil rim [PDF]

open access: yesE3S Web of Conferences
This article examines the effectiveness of the implemented development systems at the South Kemachi oil and gas condensate field. As a result of the analysis and assessment of the effectiveness of the implemented development systems in the field, it was ...
Nazarov Ulugbek   +2 more
doaj   +1 more source

Assessment of design approximation impact on neutronic characteristics of a high-temperature gas-cooled reactor fuel assembly [PDF]

open access: yesNuclear Energy and Technology
A comparative study has been conducted to find out how design approximations and simulation methods of a prismatic-type fuel block of a high-temperature gas-cooled reactor (HTGR) may affect the calculation accuracy of neutronic characteristics of fuel ...
Alexander V. Salyaev   +2 more
doaj   +3 more sources

Use of the Guardian Connect glycemic monitoring system in patients after total duodenopancreatectomy in the early postoperative period on intravenous insulin therapy

open access: yesСахарный диабет
BACKGROUND: Among different subtypes of pancreatogenic diabetes mellitus the biggest difficulties of glycemic control arise in patients after total duodenopancreatectomy (TDPE), first of all due to the presence of absolute insulin insufficiency.AIM ...
A. G. Farmanov   +10 more
doaj   +1 more source

Peptide regulation of plant cell homeostasis [PDF]

open access: yesBIO Web of Conferences
Homeostasis acts as a fundamental characteristic of living organisms and is understood as maintaining the internal environment within acceptable limits. Various classes of plant signal peptides are involved in the regulation of plant homeostasis. The aim
Linkova Natalia   +2 more
doaj   +1 more source

Performance assessment of railway track under the impact of longitudinal forces during the implementation of maximum traction modes when using electric locomotives with an asynchronous traction drive

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
Strategic task of increasing carrying capacity of railways requires a constant increase in the mass of trains due to the passage of heavy and coupled trains.
V. O. Pevzner   +4 more
doaj   +1 more source

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