Results 1 to 10 of about 5,861,643 (165)

Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling

open access: yesEnergies, 2023
A running transformer frequently experiences interturn faults; they are typically difficult to detect in their early stages but eventually progress to interturn short circuits, which cause damage to the transformer.
Nan Zhu   +5 more
doaj   +1 more source

Transformer Fault Early Warning Analysis Based on Hierarchical Clustering Combined with Decision Trees

open access: yesEnergies, 2023
The issues of low accuracy, poor generality, high cost of transformer fault early warning, and the subjective nature of empirical judgments made by field maintenance personnel are difficult to solve with the traditional measurement methods used during ...
Xiaoqiang Liu   +5 more
doaj   +1 more source

Superelasticity of Plasma‐ and Synthetic Membranes Resulting from Coupling of Membrane Asymmetry, Curvature, and Lipid Sorting

open access: yesAdvanced Science, 2021
Biological cells are contained by a fluid lipid bilayer (plasma membrane, PM) that allows for large deformations, often exceeding 50% of the apparent initial PM area. Isolated lipids self‐organize into membranes, but are prone to rupture at small (
Jan Steinkühler   +6 more
doaj   +1 more source

Stealthy Secret Key Generation

open access: yesEntropy, 2020
In order to make a warden, Willie, unaware of the existence of meaningful communications, there have been different schemes proposed including covert and stealth communications.
Pin-Hsun Lin   +3 more
doaj   +1 more source

In-Depth Study of the Corona Discharge Breakdown Thresholds in Groove Gap Waveguides and Enhancement Strategies for Inductive Bandpass Filters

open access: yesIEEE Access, 2022
This work focuses on the study of the corona discharge breakdown in groove gap waveguides (GGWs) and inductive bandpass filters (BPFs) based on this technology. With the main aim of improving the peak power handling capability (PPHC), the location of the
Aitor Morales-Hernandez   +4 more
doaj   +1 more source

A Systems Theory Perspective [PDF]

open access: yes, 1991
Aktualisierung: Am 12.
Bischof, Norbert   +3 more
core   +2 more sources

Variational Theory of Balance Systems [PDF]

open access: yes, 2009
In this work we apply the Poincare-Cartan formalism of the Classical Field Theory to study the systems of balance equations (balance systems). We introduce the partial k-jet bundles of the configurational bundle and study their basic properties: partial ...
Preston, Serge
core   +3 more sources

Model order reduction for gas and energy networks

open access: yesJournal of Mathematics in Industry, 2021
To counter the volatile nature of renewable energy sources, gas networks take a vital role. But, to ensure fulfillment of contracts under these circumstances, a vast number of possible scenarios, incorporating uncertain supply and demand, has to be ...
Christian Himpe   +2 more
doaj   +1 more source

dtwParallel: A Python package to efficiently compute dynamic time warping between time series

open access: yesSoftwareX, 2023
dtwParallel is a Python package that computes the Dynamic Time Warping (DTW) distance between a collection of (multivariate) time series (MTS). dtwParallel incorporates the main functionalities available in current DTW libraries and novel functionalities
Óscar Escudero-Arnanz   +4 more
doaj   +1 more source

Virtualization of Robotic Hands Using Mobile Devices

open access: yesRobotics, 2019
This article presents a multiplatform application for the tele-operation of a robot hand using virtualization in Unity 3D. This approach grants usability to users that need to control a robotic hand, allowing supervision in a collaborative way.
Santiago T. Puente   +3 more
doaj   +1 more source

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