Results 11 to 20 of about 2,777,696 (401)

Active suspension in railway vehicles: a literature survey

open access: yesRailway Engineering Science, 2020
Since the concept of active suspensions appeared, its large possible benefits has attracted continuous exploration in the field of railway engineering. With new demands of higher speed, better ride comfort and lower maintenance cost for railway vehicles,
Bin Fu   +5 more
semanticscholar   +1 more source

Calculation and Analysis of Electromagnetic Characteristics of Double-Fed Linear Motor

open access: yesIEEE Access, 2019
This paper presents the calculation analysis of the electromagnetic characteristics in double-fed linear motor (DFLM). First, the one-dimensional electromagnetic field model of DFLM is established.
Ying Wang   +5 more
doaj   +1 more source

Analytical Blind Beamforming for a Multi-Antenna UAV Base-Station Receiver in Millimeter-Wave Bands

open access: yesSensors, 2021
Over the last decade, unmanned aerial vehicles (UAVs) with antenna arrays have usually been employed for the enhancement of wireless communication in millimeter-wave bands.
Pingchuan Liu, Kuangang Fan, Yuhang Chen
doaj   +1 more source

Thixotropy in macroscopic suspensions of spheres [PDF]

open access: yes, 2002
An experimental study of the viscosity of a macroscopic suspension, i.e. a suspension for which Brownian motion can be neglected, under steady shear is presented.
B.J. Ackerson   +27 more
core   +2 more sources

Extended Sliding Mode Disturbance Observer-Based Sensorless Control of IPMSM for Medium and High-Speed Range Considering Railway Application

open access: yesIEEE Access, 2019
The sliding mode observer (SMO)-based approach known for its robustness towards parameter variation (external disturbance) has been used for the sensorless motor drive system.
Abebe Teklu Woldegiorgis   +3 more
doaj   +1 more source

Multifunctional polarization converter based on multilayer reconfigurable metasurface

open access: yesDefence Technology, 2023
In the modern wireless communication system, the manipulation for polarization of electromagnetic wave plays a important role in improving the capacity and reliability of communication. In this paper, a multifunctional polarization converter (MFPC) based
Ping Wang   +4 more
doaj   +1 more source

Laminar Pipe Flow with Mixed Convection under the Influence of Magnetic Field

open access: yesNanomaterials, 2021
Magnetic influence on ferronanofluid flow is gaining increasing interest from not only the scientific community but also industry. The aim of this study is the examination of the potentials of magnetic forces to control heat transfer.
Johannes Rudl   +5 more
doaj   +1 more source

Period to Request Seizure in Case of Objection to Execution Process

open access: yesİstanbul Hukuk Mecmuası, 2022
The aim of execution proceedings in money claims is to pay the amount of money owed to a creditor by encashing the seized assets. The time limit of the creditor’s right to request seizure starts even before s/he gains the right.
Uğur Bulut
doaj   +1 more source

Traction Inverter Open Switch Fault Diagnosis Based on Choi–Williams Distribution Spectral Kurtosis and Wavelet-Packet Energy Shannon Entropy

open access: yesEntropy, 2017
In this paper, a new approach for fault detection and location of open switch faults in the closed-loop inverter fed vector controlled drives of Electric Multiple Units is proposed.
Shuangshuang Lin, Zhigang Liu, Keting Hu
doaj   +1 more source

Suspension-to-suspension justification principles [PDF]

open access: yesBelgrade Philosophical Annual, 2020
We will be in a better position to evaluate some important skeptical theses if we first investigate two questions about justified suspended judgment. One question is this: when, if ever, does one justified suspension confer justification on another suspension? and the other is this: what is the structure of justified suspension?
openaire   +2 more sources

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