Results 21 to 30 of about 20,442 (218)

Dynamic effect on turnouts of cars having wheelsets with thin flanges

Вестник 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, M. I. Titarenko, E. A. Timakova, A. A. Savchenko, S. V. Kuznetsov, А. M. Kalachev   +5 more
doaj   +1 more source

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

Вестник 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, A. V. Vopilin, S. V. Raduchev, R. R. Khalilov, V. S. Yakunin   +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

Вестник 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, D. G. Fedorchenko, S. P. Golanov, Yu. I. Tsibisov, D. D. Tyulkin, I. E. Vorotyntsev, A. V. Ivchenko   +6 more
doaj   +1 more source

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

Вестник 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, G. V. Raykov, A. V. Vasil’Ev, S. E. Goncharov, A. N. Kemezh   +4 more
doaj   +1 more source

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

Advanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling, Philipp von Hartrott, Jörg Waitelonis, Thomas Hanke, Henk Birkholz, Hossein Beygi Nasrabadi, Khashayar Razghandi, Kamilla Zaripova, Felix Thonagel, Fabian Neuhaus, Martin Glauer, Lars Vogt, Harald Sack, Lutz Mädler, Bernd Bayerlein, Chris Eberl   +15 more
wiley   +1 more source

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

E3S 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, Shevtsov Vladimr, Igamberdieva Lobar   +2 more
doaj   +1 more source

Crystal Growth Engineering for Dendrite‐Free Zinc Metal Plating

Advanced Materials, EarlyView.
This research employed the rare‐earth ion dysprosium (Dy) to modulate aqueous zinc (Zn) metal plating. Integrated multiscale experiments and computational modeling unveiled the preferential adsorption of Dy on specific crystal facets, which activated screw dislocation‐driven Zn growth.
Guifang Zeng, Sharona Horta, Qing Sun, Malik Dilshad Khan, Maria Ibáñez, Yuhang Han, Shang Wang, Longqiu Li, Lijie Ci, Yanhong Tian, Andreu Cabot   +10 more
wiley   +1 more source

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

Сахарный 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, E. V. Bublik, O. I. Vinogradskaya, O. V. Udovichenko, A. V. Zilov, S. M. Deunezheva, E. G. Ryzhkova, V. I. Egorov, V. V. Fadeev, A. V. Zhivov, I. E. Tobianskaya   +10 more
doaj   +1 more source

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

Nuclear 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, Svetlana G. Usynina, Valeriya P. Kalinina   +2 more
doaj   +3 more sources

A Cryopreservation‐Based Supply Chain Strategy for Extrusion Bioprinting in Space

Advanced Materials Technologies, EarlyView.
Extrusion bioprinting on crewed space platforms requires a bioink that stays functional along the logistic chain. Here, cells and biomaterial ink travel separately, the cells cryopreserved and the ink cold stored, and are combined only minutes before printing.
Johannes Windisch, Max von Witzleben, Richard Frank Richter, Finn Dani, Constantin Greil, Sarah Duin, Anja Lode, Michael Gelinsky   +7 more
wiley   +1 more source