Results 21 to 30 of about 339,366 (209)

Influence of radial labyrinth seal on pump performance

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Labyrinth seals have been used as non-contacting sealing devices for rotors such as on turbo machines. In recent years, an improvement of the sealing performance of labyrinth seals has been required due to the increasing pressure of turbo machines.
Yuji KANEMORI, Yasuo HANDA
doaj   +1 more source

Mathematical Model and Characteristics of the Induction Motor with a Power Supply from a Current Source

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021
. Methods and mathematical models for studying the modes and characteristics of the three-phase squirrel-cage induction motor with the power supplied to the stator winding from the current source have been developed.
V. S. Malyar, A. V. Malyar
doaj   +1 more source

Calculation of Processes in the Electric Drive of the Sucker-Rod Pumping Unit with Reactive Power Compensation

open access: yesEnergies, 2023
The uneven load of the electric drive of sucker-rod pumping units causes an increase in the consumption of reactive power, which requires compensation. This article discusses the issue of calculating the processes in sucker-rod pumping units in the case ...
Andriy Malyar, Sławomir Cieslik
doaj   +1 more source

Research on Characteristics of Copper Foil Three-Electrode Planar Spark Gap High Voltage Switch Integrated with EFI

open access: yesApplied Sciences, 2022
In view of the low-energy explosion foil detonation system’s requirements for the integration technology of high-voltage switches and technical overload resistance technology, a magnetron sputtering coater is used to sputter copper film on the surface of
Kehua Han   +4 more
doaj   +1 more source

Comparison between three static mixers for emulsification in turbulent flow [PDF]

open access: yes, 2011
This paper deals with comparing performances of three different static mixers in terms of pressure drop generated by both single-phase flow and liquid–liquid flow in turbulent flow regime and in terms of emulsification performances.
Theron, Félicie   +3 more
core   +1 more source

Numerical analysis of aerodynamic lubricated double-decked protuberant foil thrust bearing

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
Double-decked protuberant foil bearing is a type of foil bearing that uses two stacking-up layers of protuberant foils as supporting structure. In preliminary experiments, wear failure of foil thrust bearing occurs occasionally due to excessive axial ...
Yu GUO   +5 more
doaj   +1 more source

EMPIRICAL ASSESSMENT OF THE IMPACT OF USING AUTOMATIC STATIC ANALYSIS ON CODE QUALITY [PDF]

open access: yes, 2013
Automatic static analysis (ASA) tools analyze the source or compiled code looking for violations of recommended programming practices (called issues) that might cause faults or might degrade some dimensions of software quality. Antonio Vetro' has focused
Vetro', Antonio
core   +1 more source

Theoretical Analysis and Optimum Design of High Speed Gas Film Thrust Bearings

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
This paper describes the theoretical and experimental investigations of static and dynamic characteristics of four types of high-speed gas film thrust bearings, such as stepped, pocketed, spiral and herring bone grooved bearings.
Hiromu HASHIMOTO, Masayuki OCHIAI
doaj   +1 more source

Comparative analysis on the performance envelope of a three-pad and four-pad active journal bearing

open access: yesCogent Engineering, 2023
Controllable fluid film bearings with the ability to actively modify the operational conditions of rotor bearing systems possess high demand in the field of rotating machinery.
Girish H   +4 more
doaj   +1 more source

Is the Pupil Involved in Duane Syndrome?: Static and Dynamic Pupillometry Characteristics [PDF]

open access: yes, 2023
Objectives:Duane syndrome (DS) is typically characterized by abduction and/or adduction deficiency accompanied by eyelid and ocular motility disturbances. Maldevelopment or absence of the sixth nerve has been shown to be the causative factor.
TAYLAN ŞEKEROĞLU, HANDE   +7 more
core   +1 more source

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