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We introduce suitable coordinate systems for pipes and their variants that allow us to transform partial differential equations (PDEs) on the pipe surfaces or in the solid pipes into computational domains with fixed limits/ranges. Such a…

Numerical Analysis · Mathematics 2025-09-09 Shuaifei Hu , Yujian Jiao , Desong Kong , Li-Lian Wang

The final purpose of this paper is to show that, by inserting a convexity constraint on the cables of a suspension bridge, the torsional instability of the deck appears at lower energy thresholds. Since this constraint is suggested by the…

Dynamical Systems · Mathematics 2020-09-01 Graziano Crasta , Alessio Falocchi , Filippo Gazzola

The implementation of the 2nd generation high-Tc superconductors in power applications, such as electrical transformers, motors and generators requires superconducting wires that are superior to copper Litz wires at cryogenic temperatures…

Superconductivity · Physics 2015-06-25 G. A. Levin , P. N. Barnes

Transformation optics offers an unconventional approach to the control of electromagnetic fields. A transformation optical structure is designed by first applying a form-invariant coordinate transform to Maxwell's equations, in which part…

Numerous proposed and developed superconducting fault current limiters and self-limiting transformers limit successfully fault currents but do not provide uninterrupted supplying of consumers. A design investigated in the work combines the…

Superconductivity · Physics 2009-11-11 V. Meerovich , V. Sokolovsky

Vertex detector cable requirements are considered within the context of the SiD concept. Cable material should be limited so that the number of radiation lengths represented is consistent with the material budget. In order to take advantage…

Instrumentation and Detectors · Physics 2009-02-19 W. E. Cooper

Doubly curved thin concrete shells are very efficient building structures, suitable for light-weight construction because of their high structural stability. In the process of constructing such shells, an efficient innovative flexible…

Optimization and Control · Mathematics 2018-08-16 Yvonne R. Stürz , Manfred Morari , Roy S. Smith

Due to recent advances, the numerical analysis of submarine three-core armored cables can nowadays be developed through the finite element method (FEM) in a small slice of the cable. This strongly reduces the computational burden and…

Systems and Control · Electrical Eng. & Systems 2024-01-26 Juan Carlos del-Pino-López , Pedro Cruz-Romero

Wide-band cable models for the prediction of electromagnetic transients in power systems require the accurate calculation of the cable series impedance as function of frequency. A surface current approach was recently proposed for systems…

Computational Engineering, Finance, and Science · Computer Science 2016-06-29 Utkarsh R. Patel , Bjorn Gustavsen , Piero Triverio

Cables under very low tension may become highly contorted and form loops, tangles, knots and kinks. These nonlinear deformations, which are dominated by flexure and torsion, pose serious concerns for cable deployment. Simulation of the…

Computational Physics · Physics 2007-05-23 Sachin Goyal , Noel C. Perkins

Short sample HTS power cable composed of multiple 344C-2G strands and designed to energize a fast-cycling dipole magnet was exposed to a sweeping magnetic field in the (2-20) T/s rate. The B-field orientation toward the HTS strands wide…

Accelerator Physics · Physics 2015-06-03 H. Piekarz , S. Hays , J. Blowers , V. Shiltsev

The great expansion in offshore power plants is raising the concern regarding the cumulative effect of the electromagnetic field emissions caused by submarine power cables. In this sense, owners are required to predict these emissions…

Systems and Control · Electrical Eng. & Systems 2024-01-25 Juan Carlos del-Pino-López , Pedro Cruz-Romero , Juan Carlos Bravo-Rodríguez

As ASIC supply voltages approach one volt, the source-impedance goals for power distribution networks are driven ever lower as well. One approach to achieving these goals is to add decoupling capacitors of various values until the desired…

Systems and Control · Electrical Eng. & Systems 2023-01-24 Jonathan L. Fasig , Barry K. Gilbert , Erik S. Daniel

We present an exact calculation of the effective geometry-induced quantum potential for a particle confined on a helicoidal ribbon. This potential leads to the appearance of localized states at the rim of the helicoid. In this geometry the…

Mesoscale and Nanoscale Physics · Physics 2017-02-21 Victor Atanasov , Rossen Dandoloff , Avadh Saxena

In this paper we study the homogenization of a class of energies concentrated on lines. In dimension $2$ (i.e., in codimension $1$) the problem reduces to the homogenization of partition energies studied by \cite{AB}. There, the key tool is…

Analysis of PDEs · Mathematics 2020-09-21 Adriana Garroni , Pietro Vermicelli

The eddy current problem has many relevant practical applications in science, ranging from non-destructive testing to magnetic confinement of plasma in fusion reactors. It arises when electrical conductors are immersed in an external…

Numerical Analysis · Mathematics 2023-10-24 Bernard Kapidani , Melina Merkel , Sebastian Schöps , Rafael Vázquez

Two dimensional electric potential maps based on voltage detection in conducting paper are common practice in many physics courses in college. Most frequently, students work on `capacitor-like' geometries with current flowing between two…

Physics Education · Physics 2018-11-14 A. Badia-Majos , E. de Lorenzo Poza

This letter presents a novel adaptive power division strategy, which uses two rectifying diodes with nonlinear impedance characteristics that are configured in parallel to function optimally at their individual power levels. Through the…

Applied Physics · Physics 2026-01-09 Zhongqi He , Liping Yan , Changjun Liu

The current-voltage (I-V) curve is the basic characteristic of a superconducting wire or tape. Measuring I-V curves is generally problematic when samples have poor stabilization. Soldering voltage taps to an active part of the conductor…

Superconductivity · Physics 2014-11-05 M. Vojenciak , F. Grilli , A. Stenvall , A. Kling , W. Goldacker

This tutorial article presents a "bottom-up" view of electrical resistance starting from something really small, like a molecule, and then discussing the issues that arises as we move to bigger conductors. Remarkably, no serious quantum…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Supriyo Datta