Results 21 to 30 of about 14,987 (302)

Experimental studies on compaction of soil with HAMM 3411 vibrating roller

open access: yesВестник СибАДИ, 2023
Introduction. Mathematical modelling is used to assess the influence of various factors on the result of soil compaction by a vibratory roller. The verification of the mathematical model is carried out by comparing it with the results of the experimental
I. S. Tyuremnov   +2 more
doaj   +1 more source

A system to identify track sections producing excessive impacts on the undercarriage of high-speed rolling stock

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2015
Considerations relate to the stages of development and output evaluation of workability of a system for continuous control of parameters incidental to ‘undercarriage/track’ dynamic system (CPDS), aimed to identify track sections responsible for excessive
V. V. Kochergin   +3 more
doaj   +1 more source

Ride control of surface effect ships using distributed control [PDF]

open access: yesModeling, Identification and Control, 1994
A ride control system for active damping of heave and pitch accelerations of Surface Effect Ships (SES) is presented. It is demonstrated that distributed effects that are due to a spatially varying pressure in the air cushion result in significant ...
Asgeir J. Sørensen, Olav Egeland
doaj   +1 more source

Non-Linear Qualitative Dynamic Analysis of Supercritical Water-Heated Channels under External Vertical Accelerations

open access: yesApplied Sciences, 2021
Employing the external force method to regard seismic impact and the three-region methodology to analyze the supercritical heated channel, a non-linear dynamic model was developed to investigate the transient characteristics of single channel or parallel
Jin Der Lee, Shao Wen Chen
doaj   +1 more source

Fuzzy control of the vertical acceleration of fast ferries [PDF]

open access: yesControl Engineering Practice, 2005
This paper shows the design and implementation of a fuzzy control system used to reduce the vertical motion of a TF-120 fast ferry. The system increases the comfort of the passengers and crew by reducing the main cause of seasickness. The aim of this controller-which is based on a fuzzy model of the ship behaviour-is to decrease the pitch acceleration ...
Santos Peñas, Matilde   +2 more
openaire   +2 more sources

Development of a system to obtain vertical track geometry measuring axle-box accelerations from in-service trains [PDF]

open access: yes, 2012
Nowadays, metropolitan railway systems are in great demand, so they offer high-frequency services for the most part of the day. Therefore there are only a few hours during night available to carry out maintenance tasks.
T. Real   +7 more
core   +3 more sources

Flies’ halteres sense vertical acceleration [PDF]

open access: yesJournal of Experimental Biology, 2018
![Figure][1] Time-lapse images of a fly with halteres falling vertically in a plastic box and taking off after the box reaches the ground. Photo credit: Noah DeFino and Alexandra Yarger.
openaire   +1 more source

Vertical evolution of auroral acceleration at substorm onset [PDF]

open access: yesAnnales Geophysicae, 2009
Abstract. This study describes the onset process of auroral substorms in connection with the vertical evolution of auroral particle acceleration, on the basis of auroral kilometric radiation (AKR) dynamics. We show that the auroral acceleration process at substorm onset basically consists of two stages: (1) appearance/intensification of a low-altitude ...
Morioka, A.   +8 more
openaire   +4 more sources

Vertical Accelerations due to Joggers of a Short Span Footbridge

open access: yes, 2017
<p>A prescribed approach according to the Eurocode to calculate the expected vertical accelerations of a footbridge due to joggers is to model a harmonic oscillating point load at midspan, representing the joggers, and calculate the outcome of the ...
Frank Beers
core   +1 more source

Accelerating Vertical Federated Learning

open access: yesIEEE Transactions on Big Data
Privacy, security and data governance constraints rule out a brute force process in the integration of cross-silo data, which inherits the development of the Internet of Things. Federated learning is proposed to ensure that all parties can collaboratively complete the training task while the data is not out of the local.
Dongqi Cai 0001   +6 more
openaire   +3 more sources

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