Results 11 to 20 of about 1,181,842 (294)

Design of a Mechanical Part of an Automated Platform for Oblique Manipulation

open access: yesApplied Sciences, 2020
Handling machines are increasingly being used in all sectors of the industry. Knowledge of the theory of transport and handling machines are basic prerequisites for their further technical development.
Miroslav Blatnický   +4 more
doaj   +1 more source

Numerical and Analytical Analysis of the Low-Frequency Magnetic Fields Generated by Three-Phase Underground Power Cables with Solid Bonding

open access: yesApplied Sciences, 2023
There is a special concern for measuring and simulating low-frequency magnetic fields generated by underground power cables, particularly in human exposure studies.
Eduard Lunca   +2 more
doaj   +1 more source

Analysis of the Bearing Capacity of Reinforced Concrete Dapped-End Beams

open access: yesApplied Sciences, 2023
The dapped-end beam is a widely utilized structural component that offers many benefits in real-world applications. However, abrupt changes in the geometry result in complex stress flows, rendering conventional calculation methods unreliable.
Vilius Masėnas   +2 more
doaj   +1 more source

Analytical Calculation of Air Gap Magnetic Field of SPMSM with Eccentrically Cut Poles Based on Magnetic Pole Division

open access: yesEnergies, 2023
In the design process of surface-mounted permanent magnet motor (SPMSM) for industrial robots and computer numerical control (CNC) machine tools, to pursue the sinusoidal nature of the back electromotive force, the magnetic poles in the form of eccentric
Jiahe Zhang   +3 more
doaj   +1 more source

Analytical calculation method for strain of pipeline with smooth dent based on 3D scanning

open access: yesYou-qi chuyun, 2022
Due to its advantages of high accuracy and strong applicability, the evaluation criteria based on dent strain is widely used to evaluate the applicability of buried long-distance pipelines with dents.
FANG Weilun   +5 more
doaj   +1 more source

Geosynthetic-encased stone columns: analytical calculation model [PDF]

open access: yes, 2011
This paper presents a newly developed design method for non-encased and encased stone columns. The developed analytical closed-form solution is based on previous solutions, initially developed for non-encased columns and for non-dilating rigid-plastic ...
Logar, Janko   +2 more
core   +1 more source

General 3D Analytical Method for Eddy-Current Coupling with Halbach Magnet Arrays Based on Magnetic Scalar Potential and H-Functions

open access: yesEnergies, 2021
Rapid and accurate eddy-current calculation is necessary to analyze eddy-current couplings (ECCs). This paper presents a general 3D analytical method for calculating the magnetic field distributions, eddy currents, and torques of ECCs with different ...
Xiaoquan Lu   +5 more
doaj   +1 more source

Charm content of the proton: An analytic calculation

open access: yesPhysical Review D, 2023
According to general understanding, the proton as one of the main ingredients of the nucleus is composed of one down and two up quarks bound together by gluons, described by Quantum Chromodynamics (QCD). In this view, heavy quarks do not contribute to the primary wave function of the proton.
A. R. Olamaei, S. Rostami, K. Azizi
openaire   +5 more sources

TECHNIQUES IN ANALYTIC LAMB SHIFT CALCULATIONS [PDF]

open access: yesModern Physics Letters A, 2005
Quantum electrodynamics has been the first theory to emerge from the ideas of regularization and renormalization, and the coupling of the fermions to the virtual excitations of the electromagnetic field. Today, bound-state quantum electrodynamics provides us with accurate theoretical predictions for the transition energies relevant to simple atomic ...
openaire   +3 more sources

EMF waveform optimization using the permanent magnet volume-integration method

open access: yesCES Transactions on Electrical Machines and Systems, 2017
The emf expression can be derived with the PM volume-integration method, allowing easier optimization and prediction of the emf harmonic content. An analytical expression is developed for predicting the electromotive force (emf) waveforms and flux ...
Maxime R. Dubois, João P. Trovão
doaj   +1 more source

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