Results 31 to 40 of about 1,038,620 (334)
Damper Winding for Noise and Vibration Reduction of a Permanent Magnet Synchronous Machine
Sensors, 2022 In this paper, a passive method for the noise reduction of the PMSM (Permanent Magnet Synchronous Machine) is presented. The principle is to add an auxiliary three-phase winding into the same slots as the initial stator winding, short-circuited via three
Sijie Ni +4 more
doaj +1 more source
Exact Master Equation and Quantum Decoherence of Two Coupled Harmonic Oscillators in a General Environment [PDF]
, 2007 In this paper we derive an exact master equation for two coupled quantum harmonic oscillators interacting via bilinear coupling with a common environment at arbitrary temperature made up of many harmonic oscillators with a general spectral density ...
B. L. Hu +5 more
core +2 more sources
Analysis of Energy Transport Behavior and Geometric Effects in Graphene
Frontiers in Mechanical Engineering, 2020 Graphene is an excellent heat conductor, with the potential to be used as a heat spreader for applications where there are fast, transient heat pulses.
Alejandro Guajardo-Cuéllar +3 more
doaj +1 more source
Heartbeat Harmonics Detectability During Driving Simulation Using NHA and CW Doppler Radar
IEEE Access, 2023 Several studies have been published on noncontact heartbeat detection recently. Particularly, a few studies have found that radar for noncontact detection is effective for long-term monitoring.
Taichi Horimoto +8 more
doaj +1 more source
Fracture Analysis of Toughness Fracture Failure on Flexspline of Harmonic Reducers During the Service [PDF]
TeshugangThe reasons of the fatigue failure of flexspline are analyzed by observation analysis， observation and hardness determination of fracture morphology of microstructure.
Mu Xiaobiao, Zhang Yongqi, Gao Minyan, Yang Guoqiang, Zhang Chaolei
doaj +1 more source
Phasor-Based Assessment for Harmonic Sources in Distribution Networks [PDF]
, 2020 Phasor-based interdependencies of multiple harmonic sources, especially Distributed Energy Resources, on distribution networks are analyzed in this paper. A new index, Phasor Harmonic Index (IPH), is proposed by the authors.
Arghandeh, R. +5 more
core
Fast-individual-harmonic-extraction technique [PDF]
, 2005 One outcome of a PhD project (C H Ng, University studentship) A collaborative work (the Energy Systems Group, Northumbria and Durham University). It deals with the problem of harmonic suppression or elimination in power systems for safety and power ...
Busawon, Krishna +3 more
core +1 more source
Simulation of Onset of the Capillary Surface Wave in the Ultrasonic Atomizer
Micromachines, 2021 The novel drug delivery system refers to the formulations and technologies for transporting a pharmaceutical compound in the body as it is needed to safely achieve its desired therapeutic effects.
Yu-Lin Song +3 more
doaj +1 more source
IEEE Access, 2020 The global horizontal irradiance data recorded at the earth's horizontal surface is a mixture of deterministic (extra-terrestrially) and stochastic components due to the ever-changing atmospheric conditions. The Box-Jenkins short memory stochastic models
Edmore Ranganai, Caston Sigauke
doaj +1 more source
Mathematics, 2021 Passive power filters (PPFs) are most effective in mitigating harmonic pollution from power systems; however, the design of PPFs involves several objectives, which makes them a complex multiple-objective optimization problem. This study proposes a method
Nien-Che Yang +2 more
doaj +1 more source