Results 41 to 50 of about 43,408 (125)

Design and Development of Limits of Stability and Postural Stability Protocols for a Computerized Dynamic Posturography [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2014
Upright balance control is an important human skill which can be impaired by aging and different disorders. Therefore, clinical and laboratory measures of balance assessment were established.
Azadi Yazdani, Nasser Fatouraee
doaj  

METHOD OF DETERMINING THE PARAMETERS OF AN EQUIVALENT ASYNCHRONOUS ELECTRIC MOTOR IN REAL TIME

open access: yesСучасні інформаційні системи, 2018
A calculation of the parameters of the equivalent asynchronous electric machine allows introducing the automated calculation of the static and dynamic stability of an electrical supply system in an industrial enterprise for any combination of different ...
Yaroslav Bederak   +2 more
doaj   +1 more source

Time evolution of the intensity and size of tropical cyclones

open access: yesJournal of Advances in Modeling Earth Systems, 2012
The purpose of this paper is to analyze the life cycle of tropical cyclones in terms of a K-Vmax diagram. Such a diagram summarizes the time evolution of the integrated kinetic energy K and the maximum tangential wind Vmax, which respectively measure ...
Kate D. Musgrave   +3 more
doaj  

SYNTHESIS OF A TWO-MASS ELECTRIC DRIVE WITH AN ASTATIC SYSTEM OF SUBORDINATE REGULATION AT THE ACTION OF VARIABLE FRICTION FORCES

open access: yesElectrical engineering & Electromechanics, 2018
Purpose. The solution of actual problem of active suppression of resilient electromechanical vibrations in an electric drive with the astatic system of automatic control is presented. Methodology.
I. N. Zadorozhniaia, N. A. Zadorozhniy
doaj   +1 more source

Accumulation of progressing deformations of the threaded joints M16 under low cyclic bending/Progresuojantis deformacijų kaupimasis mažaciklio lenkimo veikiamose srieginėse jungtyse M16

open access: yesJournal of Civil Engineering and Management, 1998
In some threaded joints, over a period of operation the conditions of compression are created, most likely owing to the prestress and bending caused by external loads. For elements in the cross-section in which the stresses are distributed unevenly, some
Mindaugas Leonavičius   +2 more
doaj   +1 more source

Dzyaloshinskii-Moriya interactions, Néel skyrmions and V4 magnetic clusters in multiferroic lacunar spinel GaV4S8

open access: yesnpj Computational Materials
Using ab initio density functional theory with static mean-field correlations, we calculate the Heisenberg and Dzyaloshinskii-Moriya interactions (DMI) for an atomistic spin Hamiltonian for the lacunar spinel, GaV4S8.
Vladislav Borisov   +4 more
doaj   +1 more source

Control strategy of LCL-type three-phase photovoltaic grid connected inverter

open access: yesJournal of Measurement Science and Instrumentation, 2019
The grid-connected inverter with LCL filter has the ability of easily attenuating high-frequency current harmonics. However, its suppression effect on the background harmonics in grid voltage is limited. A control strategy is presented, which is composed
WANG Si-hua, WANG Jin-qiang
doaj  

Site and Capacity Planning of Electric Vehicle Charging Stations Based on Road–Grid Coupling

open access: yesWorld Electric Vehicle Journal
To address the rapidly growing demand for charging stations (CSs) and the associated challenges posed by the expansion of electric vehicles (EVs), this study proposes a collaborative planning method integrates user demand considerations with operational ...
Zhenke Tian   +3 more
doaj   +1 more source

Fully dynamic earthquake sequence simulation of a fault in a viscoelastic medium using a spectral boundary integral equation method: does interseismic stress relaxation promote aseismic transients?

open access: yesEarth, Planets and Space, 2019
Along subduction interfaces or some major faults, a seismogenic layer in the upper crust is underlain by a zone of slow-slip events (SSEs) and tremors, and seismicity disappears at greater depths.
Yuki Miyake, Hiroyuki Noda
doaj   +1 more source

MODELING AND ANALYSIS OF DYNAMICS IN BEARING SYSTEM OF DRILLING, MILLING AND BORING MACHINE WITH MONO-COLUMN

open access: yesНаука и техника, 2015
FEM-analysis of dynamics in the bearing system of a heavy-duty machine tool has been carried out in the paper. This is a prospective variant for a large-size multi-purpose machine tool with a horizontal sliding ram.
Yu. V. Vasilevich   +3 more
doaj  

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