Results 11 to 20 of about 70,066 (181)

Application of blind source separation to the health monitoring of electrical and mechanical faults in a linear actuator

open access: yesAIMS Electronics and Electrical Engineering, 2019
This paper proposes an automated fault isolation and diagnostic chain for the health monitoring of a linear actuator composed of a roller screw driven by a permanent magnet synchronous motor.
Ryan Michaud   +5 more
doaj   +1 more source

Ampere–Oersted field splitting of the nonlinear spin-torque vortex oscillator dynamics

open access: yesScientific Reports, 2022
We investigate the impact of the DC current-induced Ampère–Oersted field on the dynamics of a vortex based spin-torque nano-oscillator. In this study we compare micromagnetic simulations performed using mumax $$^3$$ 3 and our analytical model based on ...
Flavio Abreu Araujo   +2 more
doaj   +1 more source

How to include frequency dependent complex permeability Into SPICE models to improve EMI filters design?

open access: yesAIP Advances, 2018
Electromagnetic interference (EMI) filters design is a rather difficult task where engineers have to choose adequate magnetic materials, design the magnetic circuit and choose the size and number of turns.
Fabien Sixdenier   +4 more
doaj   +1 more source

Convex solutions of Monge-Ampère equations and systems: Existence, uniqueness and asymptotic behavior

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, the equations and systems of Monge-Ampère with parameters are considered. We first show the uniqueness of of nontrivial radial convex solution of Monge-Ampère equations by using sharp estimates.
Feng Meiqiang
doaj   +1 more source

The quantum metrology triangle and the re-definition of the SI ampere and kilogram; Analysis of a reduced set of observational equations [PDF]

open access: yes, 2009
We have developed a set of seven observational equations that include all of the physics necessary to relate the most important of the fundamental constants to the definitions of the SI kilogram and ampere.
  +12 more
core   +1 more source

Spontaneous breaking of axial symmetry for Schroedinger's equation in the presence of a magnetic field [PDF]

open access: yes, 2000
For appropriate parameters, the ground state for the Schroedinger and Ampere coupled equations in a cylindric domain does not have axial symmetry.Comment: 2 ...
D.A. Kirzhnits   +7 more
core   +2 more sources

Pengaruh Kuat Ampere Pada Pengelasan SMAW Terhadap Kekerasan Mickro Vickers dan Cacat Las Menggunakan Ultrasonic Testing

open access: yesRing Mechanical Engineering, 2021
ABSTRAK Teknologi dibidang manufaktur terutama pemesinan dalam proses pengelasan tidak dapat dipisahkan dalam penyambungan logam, dalam proses pembuatan benjana tekan, perpipaan ataupun industrial lainya pengaruh pada arus ampere harus diperhatikan ...
Rizki Adi Adha
doaj  

Performance Evaluations of Technology Transfer Offices of Major US Research Universities in 2012/2013

open access: yesJournal of Technology Management & Innovation, 2014
By analyzing the highlights of the major activities reported by the technology transfer offices (TTOs) of twenty US major universities, the performances of TTO activities are quantitatively assessed and the associated scores are compared with each other.
Ampere A. Tseng, Miroslav Raudensky
doaj   +1 more source

Generation of Multi-Color Attosecond X-Ray Radiation Through Modulation Compression

open access: yes, 2011
In this paper, we propose a scheme to generate tunable multi-color attosecond coherent X-ray radiation for future light source applications. This scheme uses an energy chirped electron beam, a laser modulators, a laser chirper and two bunch compressors ...
Qiang, Ji, Wu, Juhao
core   +1 more source

Experimental Investigation of the Breakdown Voltage of CO2, N2, and SF6 Gases, and CO2–SF6 and N2–SF6 Mixtures under Different Voltage Waveforms

open access: yesEnergies, 2018
This paper is devoted to a comparison study of the breakdown voltage of CO2, N2, and SF6 gases, and CO2–SF6 and N2–SF6 mixtures under different voltage waveforms, namely AC, DC, and lightning impulse voltages, in point–plane and sphere–sphere electrode ...
Abderrahmane Beroual   +2 more
doaj   +1 more source

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