Results 11 to 20 of about 12,609,494 (300)

Mathematical Modeling of an Electrotechnical Complex of a Power Unit Based on Hydrogen Fuel Cells for Unmanned Aerial Vehicles

open access: yesEnergies, 2021
The issues of mathematical and numerical simulation of an electrical complex of a power plant based on hydrogen fuel cells with a voltage step-down converter were considered.
Ivan V. Vasyukov   +4 more
doaj   +1 more source

AN IMPROVED METHODOLOGY FOR MULTI-CRITERIA EVALUATIONS IN THE SHIPPING INDUSTRY

open access: yesBrodogradnja, 2016
This paper presents a reliable, easy and more objective approach for ranking and determining preference in a multi-criteria decision-making problem within the shipping industry.
Daniel Osezua Aikhuele   +1 more
doaj   +1 more source

Fast median calculation method [PDF]

open access: yes, 2012
The ever increasing demand for high image quality requires fast and efficient methods for noise reduction. The best-known order-statistics filter is the median filter. A method is presented to calculate the median on a set of N W-bit integers in W/B time
Huerta, P.   +7 more
core   +1 more source

Influence of Different Control Parameters on the Flux Density and Loss of Stator Core in the Switched Reluctance Motor

open access: yesIEEE Access, 2023
Switched reluctance motor has the advantages of the high efficiency, low cost, strong fault tolerance, and high reliability. A 5.5 kW, 12/8 pole switched reluctance motor is designed.
Han Jichao   +4 more
doaj   +1 more source

Mental calculation : its place in the development of numeracy [PDF]

open access: yes, 2001
The current concerns about the standards of numeracy in primary schools, as these are manifest in different official reports (HMI, 1997; DfEE, 1998), have given a revised emphasis to mental calculation.
Maclellan, Effie
core   +4 more sources

A novel Q-limit guided continuation power flow method for voltage stability analysis [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Voltage security assessment is becoming a more and more important issue due to the fact that electrical power systems are more prone to voltage instability ...
Zhu, Pengcheng
core   +7 more sources

Calculation Method for Plates with Discrete Variable Thickness Under Uniform Loading or Hydrostatic Pressure [PDF]

open access: yes, 2018
The article proposes a new analytical method for the calculation of plates with constant and variable rigidity parameters. This method renders it possible to decrease the weight of the plates working under hydrostatic pressure by using variable ...
I. Penkov   +5 more
core   +1 more source

Prediction of the electromagnetic torque in synchronous machines through Maxwell stress harmonic filter (HFT) method [PDF]

open access: yes, 2006
For the calculation of torque in synchronous motors a local method is analysed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air-gap.
Popescu, M.
core   +1 more source

calculation

open access: yes, 2023
This program calculates urban vitality. By inputting parameter data, urban vitality can be calculated based on the calculation formula.
zhao (16977453)
core   +1 more source

A CALCULATION METHOD OF TRANSIENT MODES OF ELECTRIC SHIPS’ PROPELLING ELECTRIC PLANTS

open access: yesElectrical engineering & Electromechanics, 2017
The purpose of the work is to develop the method for calculating the transient modes of electric ships’ propelling electric plants during maneuver.
V. A. Yarovenko, P. S. Chernikov
doaj   +1 more source

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