Results 21 to 30 of about 1,453,882 (351)

Engineering of Light Electric Commercial Vehicle

open access: yesНаука и техника, 2020
The paper describes the process and results of the development of the light commercial electric vehicle. In order to ensure maximum energy efficiency of the developed vehicle the key parameters of the original electric motor.
R. Dorofeev   +5 more
doaj   +1 more source

The Choice of a Rational Technology for Manufacturing the Hydrogenerators-Motors Rotor Rim

open access: yesJournal of Mechanical Engineering, 2023
The object of research in the paper is the technology of manufacturing segments of the rotor rim of large hydrogenerators-motors. The subject of study is the design and geometrical state of the rotor rim during the operation of hydraulic units.
Pavlo M. Makarov
doaj   +1 more source

Method of calculating the thickness of the combustion chamber of a liquid rocket engine made with the use of innovative technologies and materials

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The use of innovative techniques in the production of parts and assembly units is one of the promising trends connected with increasing mass-energy characteristics of liquid- propellant jet engines.
A. V. Krivonogov
doaj   +1 more source

Comparison of Methods of Calculating Dynamic Strength Index [PDF]

open access: yesInternational Journal of Sports Physiology and Performance, 2018
Purpose: To determine the reliability and variability of the Dynamic Strength Index (DSI) calculated from squat-jump (SJ) vs countermovement-jump (CMJ) peak force (PF) and to compare DSI values between methods. Methods: Male youth soccer and rugby league players (N = 27; age 17.2 ± 0.7 y, height 173.9 ± 5.7 cm, body mass 71.1 ± 7.2 kg) performed 3 ...
Comfort, P   +5 more
openaire   +3 more sources

Relativistic Approach to Isoscalar Giant Resonances in 208Pb [PDF]

open access: yes, 2000
We calculate the longitudinal response of 208Pb using a relativistic random-phase approximation to three different parameterizations of the Walecka model with scalar self-interactions.
Piekarewicz, J.
core   +2 more sources

Comment on "New modes of halo excitations in the 6He nucleus" [PDF]

open access: yes, 1998
We try to explain the differences in the 6He dipole strength function in refs. [1] and [2]. We perform the full basis calculation of the strength function with the same renormalized interaction as in [1] and show that the size of the basis, needed for ...
A. Cobis   +9 more
core   +2 more sources

Study into Improvement of the Hatch Covers of General-Purpose Open Wagons to Provide Strength under Operational Loading Diagrams

open access: yesCommunications, 2019
The article presents the results of research into the strength of the hatch covers of general-purpose open wagons. It was detected that strength of the standard hatch covers is not provided in operational loading diagrams.
Oleksij Fomin   +6 more
doaj   +1 more source

Finite-size Effects in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interaction [PDF]

open access: yes, 2007
Within the Kubo formalism, we estimate the spin-Hall conductivity in a two-dimensional electron gas with Rashba spin-orbit interaction and study its variation as a function of disorder strength and system size.
C. P. Moca   +4 more
core   +3 more sources

Strength calculation of parts based on stress state stiffness

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022
In the framework of this research it is shown that strength calculation of the most critical parts requires taking into account the parameter of stress state stiffness determined by the G. A. Smirnov-Alyaev. A method for estimating the level of strain of
A. S. Bukatyi, S. A. Bukatyi
doaj   +1 more source

Calculation of strength of railway wheels [PDF]

open access: yesIMK-14 - Istrazivanje i razvoj, 2019
Published
Vladimir Sinđelić   +2 more
openaire   +2 more sources

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