Tootfinder

This https://arxiv.org/abs/2302.08053 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Selective Noise Suppression Methods Using Random SVPWM to Shape the Noise Spectrum of PMSMs
Random pulse width modulation techniques are used in AC motors powered by two-level three-phase inverters, which cause a broadband spectrum of voltage, current, and electromagnetic force. The voltage distribution across a wide range of frequencies may increase the vibration and acoustic noise of motors. This study proposes two selective noise suppression (SNS) methods to eliminate voltage harmonics for specified frequencies. In the first method, the switching frequency is constant. The pulse po…

This https://arxiv.org/abs/2401.05988 has been replaced.
initial toot: https://mastoxiv.page/@a…

Voltage dependent first-principles barriers to Li transport within Li ion battery Solid Electrolyte Interphases
Charging a Li ion battery requires Li ion transport between the cathode and the anode. This Li ion transport is dependent upon (among other factors) the electrostatic environment the ion encounters within the Solid Electrolyte Interphase (SEI), which separates the anode from the surrounding electrolyte. Previous first principles work has illuminated the reaction barriers through likely atomistic SEI environments, but has had difficulty accurately reflecting the larger electrostatic potential la…

This https://arxiv.org/abs/2304.05393 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Homogenization of peristaltic flows in piezoelectric porous media
The paper presents a new type of weakly nonlinear two-scale model of controllable periodic porous piezoelectric structures saturated by Newtonian fluids. The flow is propelled by peristaltic deformation of microchannels which is induced due to piezoelectric segments embedded in the microstructure and locally actuated by voltage waves. The homogenization is employed to derive a macroscopic model of the poroelastic medium with effective parameters modified by piezoelectric properties of the skele…

This little tool I wrote a while back is coming in handy again.
It's a simple, brute-force constraint solver for voltage dividers that lets you specify:
* Resistors from any of the standard E-number sets, or a text file listing the values you have in inventory now
* Min and/or max value of the string, or of either resistor
* Target division, expressed as either Rt/Rb or a division ratio Rb/(Rt Rb)
Given the constraints it will find an exact solution if one e…

GitHub - azonenberg/voltage-divider-calculator: Tool for selecting voltage divider components given constraints and a list of available resistors
Tool for selecting voltage divider components given constraints and a list of available resistors - azonenberg/voltage-divider-calculator

Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions
Halima Giovanna Ahmad, Roberta Satariano, Raffaella Ferraiuolo, Antonio Vettoliere, Carmine Granata, Domenico Montemurro, Giovanni Ausanio, Loredana Parlato, Giovanni Piero Pepe, Francesco Tafuri, Davide Massarotti
https://arxiv.org/abs/2406.03615

Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions
By measuring the current-voltage characteristics and the switching current distributions as a function of temperature, we have investigated the phase dynamics of Al tunnel ferromagnetic Josephson junctions (JJs), designed to fall in the typical range of parameters of state-of-the-art transmons, providing evidence of phase diffusion processes. The comparison with the experimental outcomes on non-magnetic JJs with nominally the same electrodynamical parameters demonstrates that the introduction o…

This https://arxiv.org/abs/2305.17504 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Symmetry Parameters of Two-Generator Circulant Graphs
The derived graph of a voltage graph consisting of a single vertex and two loops of different voltages is a circulant graph with two generators. We characterize the automorphism groups of connected, two-generator circulant graphs, and give their determining and distinguishing number, and when relevant, their cost of 2-distinguishing. We do the same for the subdivisions of connected, two-generator circulant graphs obtained by replacing one loop in the voltage graph with a directed cycle.

Russian attacks damage energy facilities, causing power deficit, Energy Ministry says: https://benborges.xyz/2024/06/15/russian-attacks-damage.html

Gatemonium: A Voltage-Tunable Fluxonium
William M. Strickland, Bassel Heiba Elfeky, Lukas Baker, Andrea Maiani, Jaewoo Lee, Ido Levy, Jacob Issokson, Andrei Vrajitoarea, Javad Shabani
https://arxiv.org/abs/2406.09002

Gatemonium: A Voltage-Tunable Fluxonium
We present a new fluxonium qubit design, gatemonium, based on an all superconductor-semiconductor hybrid platform exhibiting gate voltage tunability of $E_J$. We first show the principle of fluxonium operation in epitaxial Al/InAs heterostructure where the single Josephson junction can be controlled using gate voltage control, effectively tuning the ``weight'' of the fictitious phase particle. The spectroscopy of the qubit shows tunability between plasmons to fluxons and their hybrid spectrum. …

This https://arxiv.org/abs/2204.02837 has been replaced.
link: https://scholar.google.com/scholar?q=a

Online Feedback Droop Scheduling in Distribution Grids for Frequency and Local Voltage Control
This paper presents a novel framework for collective control of Distributed Energy Resources (DERs) in active Distribution Networks (DNs). The proposed approach unifies the commonly employed local (i.e., decentralized) voltage and frequency droop control schemes into a transfer matrix relating frequency and voltage magnitude measurements to active and reactive power injection adjustments. Furthermore, the transfer matrices of individual DER units are adaptively tuned in real-time via slow commu…

This https://arxiv.org/abs/2312.00643 has been replaced.
initial toot: https://mastoxiv.page/@a…

Voltage-driven 90 switching of bulk perpendicular magnetic anisotropy in ferrimagnets
Rare earth-transition metal ferrimagnets, featuring antiferromagnetically coupled, inequivalent magnetic sublattices, have garnered increasing interest in the burgeoning field of ferrimagnetic spintronics. However, controlling their magnetism with low voltages,a key to reducing power consumption,remains challenging, particularly due to the poorly understood mechanisms underlying bulk perpendicular magnetic anisotropy (PMA). Here, we introduce a method involving voltage-driven hydrogen insertion…