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Magnetic stimulation is a standard tool in brain research and many fields of neurology, as well as psychiatry. From a physical perspective, one key aspect of this method is the inefficiency of available setups. Whereas the spatial field…

Medical Physics · Physics 2011-06-20 Stefan M. Goetz , Nam C. Truong , Manuel G. Gerhofer , Thomas Weyh , Hans-Georg Herzog

This article investigates on the improvement and stabilization of alternating current (AC) and direct current (DC) output voltages in a Permanent Magnet Synchronous Generator (PMSG) driven by a vertical-axis tidal turbine using advanced…

Optimal control of magnetizing current for minimizing induction motor power losses during load torque step change was developed. Obtained strategy has feedback form and is exactly optimal of ideal speed controller performance and absence of…

Systems and Control · Computer Science 2014-04-21 Alex Borisevich , Gernot Schullerus

Next-generation high-energy electron-positron colliders, operating as Higgs factories, require an unprecedented jet energy resolution for precision measurements of Higgs and Z/W bosons. To address this challenge, a conceptual design is…

Instrumentation and Detectors · Physics 2026-03-10 Baohua Qi , Fangyi Guo , Shu Li , Yong Liu , Manqi Ruan , Weizheng Song , Shengsen Sun , Yifang Wang , Yuexin Wang , Haijun Yang , Yang Zhang , Zhiyu Zhao

The magnetron H- ion sources developed in the 1970s currently in operation at Fermilab provide beam to the rest of the accelerator complex. A series of modifications to these sources have been tested in a dedicated offline test stand with…

Accelerator Physics · Physics 2017-06-28 A. Sosa , D. S. Bollinger , P. R. Karns , C. Y. Tan

We clarify the relations among different Fourier-based approaches to option pricing, and improve the B-spline probability density projection method using the sinh-acceleration technique. This allows us to efficiently separate the control of…

Computational Finance · Quantitative Finance 2021-09-21 Svetlana Boyarchenko , Sergei Levendorskiĭ , J. Lars Kirkby , Zhenyu Cui

Single flux quantum pulses are a natural candidate for on-chip control of superconducting qubits. We show that they can drive high-fidelity single-qubit rotations---even in leaky transmon qubits---if the pulse sequence is suitably…

Quantum Physics · Physics 2016-09-07 Per J. Liebermann , Frank K. Wilhelm

Flow-improving devices (FIDs) are used the most effectively for the reduction of noise and vibration induced by a propulsor. These devices may also increase the efficiency of a propulsor and in some cases should be considered and designed…

Fluid Dynamics · Physics 2025-03-14 Vladimir Sluchak

The Fermilab booster has an intensity upgrade plan called the Proton Improvement plan (PIP). The flux throughput goal is 2E17 protons/hour which is almost double the current operation at 1.1E17 protons/hour. The beam loss in the machine is…

Accelerator Physics · Physics 2013-01-31 K. Seiya , C. Drennan , W. A. Pellico , K. Triplett , A. Waller

We present a finite-difference method for the topology optimization of permanent magnets that is based on the FFT accelerated computation of the stray-field. The presented method employs the density approach for topology optimization and…

Computational Physics · Physics 2017-10-11 Claas Abert , Christian Huber , Florian Bruckner , Christoph Vogler , Gregor Wautischer , Dieter Suess

The development of cryogenic technology and high temperature superconducting (HTS) materials has seen continued interest worldwide in the development of HTS machines since the late 1980s. In this paper, the authors present a conceptual…

Superconductivity · Physics 2014-10-14 Jin Zou , Di Hu , Tim J. Flack , Haichao Feng , Xiaozhuo Xu , Mark D. Ainslie

This work introduces the design analysis simulation and a standard MEMS fabrication process for a three dimensional microcoil with a magnetic core and a digital switch configuration using a completely integrated fully MEMS compatible…

Systems and Control · Electrical Eng. & Systems 2022-12-21 Abdelhameed Sharaf , S. M. Eladl , A. Nasr , Mohamed Serry

The study of the high strain rate mechanical behaviour of materials using micropillar compression tests has been hindered so far due to the lack of suitable instrumentation. In the present study, a novel high strain rate micropillar…

A cylindrical GEM tracker is under construction in order to replace and improve the inner tracking system of the BESIII experiment. Tests with planar chamber prototypes were carried out on the H4 beam line of SPS (CERN) with muons of 150…

The needs to improve performances of artillery projectiles require accurate aerodynamic investigation methods. The aerodynamic design of a projectile usually starts from numerical analyses, mostly including semiempirical methods and/or…

Classical Physics · Physics 2023-09-12 Muller Laurène , Libsig Michel

We demonstrate the successful experimental implementation of a multi-stage Zeeman decelerator utilizing the new concept described in the accompanying paper. The decelerator consists of an array of 25 hexapoles and 24 solenoids. The…

Noninvasive brain stimulation can activate neurons in the brain but requires power electronics with exceptionally high power in the mega-volt-ampere and high frequencies in the kilohertz range. Whereas oscillator circuits offered only one…

Medical Physics · Physics 2025-03-11 Jinshui Zhang , Angel Peterchev , Stefan Goetz

In the automotive industry, multi-element wings have been used to improve the aerodynamics of race cars. Multi-element wings can enhance a vehicle's handling and stability by reducing drag and increasing downforce, allowing it to corner…

Fluid Dynamics · Physics 2023-11-09 Paras Singh , Arun Ravindranath , Aryan Tyagi , Aryaman Rao , Raj Kumar Singh

We propose a novel approach for boosting the realized gain in enhanced directivity arrays with both active and parasitic dipoles as radiating elements. The optimization process involves two main objectives: maximizing the end-fire gain and…

Signal Processing · Electrical Eng. & Systems 2024-12-02 Rozita Konstantinou , Ihsan Kanbaz , Okan Yurduseven , Michail Matthaiou

Finding feasible coils for stellarator fusion devices is a critical challenge of realizing this concept for future power plants. Years of research work can be put into the design of even a single reactor-scale stellarator design. To rapidly…

Plasma Physics · Physics 2026-03-17 Alan A. Kaptanoglu , Pedro F. Gil