# IEEE Transactions on Applied Superconductivity

## Filter Results

Displaying Results 1 - 25 of 82
• ### [Front cover]

Publication Year: 2014, Article Sequence Number: 0002501
| |PDF (302 KB)
• ### IEEE Transactions on Applied Superconductivity publication information

Publication Year: 2014, Article Sequence Number: 0002601
| |PDF (135 KB)

Publication Year: 2014, Article Sequence Number: 0002904
| |PDF (130 KB)
• ### ASEMD 2013—Introduction

Publication Year: 2014, Article Sequence Number: 0002401
| |PDF (25 KB)
• ### Denoising Multi-Channel Images in Parallel MRI by Low Rank Matrix Decomposition

Publication Year: 2014, Article Sequence Number: 0600105
Cited by:  Papers (2)
| |PDF (603 KB) | HTML

Parallel magnetic resonance imaging (pMRI) techniques can speed up MRI scan through a multi-channel coil array receiving signal simultaneously. Nevertheless, noise amplification and aliasing artifacts are serious in pMRI reconstructed images at high accelerations. This study presents a patch-wise denoising method for pMRI by exploiting the rank deficiency of multi-channel coil images and sparsity ... View full abstract»

• ### A Single-Phase AC Power Supply Based on Modified Quasi-Z-Source Inverter

Publication Year: 2014, Article Sequence Number: 0600205
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This paper presents a single-phase ac power supply circuit that based on modified voltage-fed quasi-Z-source inverter topology; it suits to the light or the heavy load and is fit for the resistive, inductive, or capacitive load. The topology, operating principle, voltage gain, control method, and its realization by DSP are described in this paper. The feasibility and rationality of the system is v... View full abstract»

• ### Current-Fed Quasi-Z-Source Inverter-Based Adjustable Speed Drive System With Bidirectional Power Flow

Publication Year: 2014, Article Sequence Number: 0600306
Cited by:  Papers (1)
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Current-fed quasi-Z-source inverters (qZSIs) have many advantages over traditional current source inverters and current-fed Z-source inverters. This paper presents and analyzes novel adjustable speed drive systems based on the current-fed qZSI that could provide bidirectional power flow, including their topologies, operating principle, and voltage gain. The simulation results are given to verify t... View full abstract»

• ### Winding Current Utilization Calculation of Controllable Reactor of Transformer Type Based on Equivalent Leakage Reactance

Publication Year: 2014, Article Sequence Number: 0600405
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The calculation of winding current and the analysis of winding coupling effect are distinctly important to improve the efficiency of the controllable reactor of transformer type (CRT). Based on the grading principle of step-single-branch operation mode, the formulas of control winding current, equivalent leakage reactance, and rated current utilization are derived. These formulas demonstrate that ... View full abstract»

• ### Modeling of Surface Damage Mitigation in Fused Silica With Carbon Dioxide Laser

Publication Year: 2014, Article Sequence Number: 0600504
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A model of surface damage mitigation in fused silica irradiated by CO2 laser is built. Temperature distribution and surface morphology are simulated by finite-element method. It is proposed that a Gaussian crater appears in the mitigation site, which width and depth are dependent on the laser parameters. Following, the effects of frequency, duty cycle, and beam diameter on the size of m... View full abstract»

• ### Magnetic Integration Technology in Controllable Reactor of Transformer Type Constituted by Various Magnetic Materials

Publication Year: 2014, Article Sequence Number: 0600605
Cited by:  Papers (1)
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Eliminating the magnetic coupling among control windings and simplifying the complicated structure caused by current-limiting inductance cascading in the control winding circuit of a controllable reactor of transformer type (CRT) are quite important. Based on the technology of magnetic integration, a magnetic integration structure composed by a variety of magnetic materials is proposed. The formul... View full abstract»

• ### Novel Decoupling Model-Based Predictive Current Control Strategy for Flux-Switching Permanent-Magnet Synchronous Machines With Low Torque Ripple and Switching Loss

Publication Year: 2014, Article Sequence Number: 0600705
Cited by:  Papers (4)
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A flux-switching permanent-magnet synchronous machine (FSPMSM) has demonstrated merits of high torque density, strong mechanical robustness, good fault redundancy ability, etc., and begun to find great potential applications in electrical vehicle, airplane, ship, wind generation, and so on. However, by the inherited influence of double salient structure and high number of pole pairs, it suffers wi... View full abstract»

• ### Novel Linear Iteration Maximum Power Point Tracking Algorithm for Photovoltaic Power Generation

Publication Year: 2014, Article Sequence Number: 0600806
Cited by:  Papers (3)
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A novel maximum power point tracking (MPPT) algorithm is proposed in this paper based on the linear iteration method for photovoltaic (PV) power generation for improving steady-state performance and fast dynamic response simultaneously. In this MPPT algorithm, linear prediction estimates the MPP of PV with a very high accuracy due to the constant-voltage and constant-current characters of PV. Then... View full abstract»

• ### Parameters Analysis and Optimization Design for a Concentric Magnetic Gear Based on Sinusoidal Magnetizations

Publication Year: 2014, Article Sequence Number: 0600905
Cited by:  Papers (5)
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Concentric magnetic gears hold a promising future in the field of low speed and high torque. To obtain a sinusoidal distribution of air gap magnetic field, in this paper, exact 2-D analytical method is proposed to calculate the magnetic field distribution in a concentric magnetic gear with Halbach permanent-magnet arrays, and analyzes the relationship between the parameters and maximum static torq... View full abstract»

• ### Study on Switching Overvoltage in Off-Shore Wind Farms

Publication Year: 2014, Article Sequence Number: 0601005
Cited by:  Papers (4)
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The transformers often suffer the insulation breakdown accident caused by overvoltage in some wind farms and the problem has become particularly prominent. The switching overvoltage is considered to be an important cause to insulation accident. This paper will establish a wind farm model and research on the relationship between the switching overvoltage and the length of feeder cable and the numbe... View full abstract»

• ### Methodology and Equipments for Analog Circuit Parametric Faults Diagnosis Based on Matrix Eigenvalues

Publication Year: 2014, Article Sequence Number: 0601106
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A method and corresponding equipments for analog circuit parametric faults diagnosis based on matrix eigenvalues are presented in this paper. The proposed method organizes the discrete samples of response signals of the circuits under test (CUT) into a square matrix and calculates out the maximal and minimal eigenvalues of the square matrix. According to the one-to-one correspondence relationship ... View full abstract»

• ### Novel Flux-Regulatable Dual-Magnet Vernier Memory Machines for Electric Vehicle Propulsion

Publication Year: 2014, Article Sequence Number: 0601205
Cited by:  Papers (3)
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In this paper, two novel flux-regulatable dual-magnet vernier memory machines (DM-VMMs), which incorporate the flux-memorizable concept and vernier structure, are proposed and implemented as in-wheel motor drives for electric vehicle (EV) applications. The proposed dual-magnet configurations employ flux-modulated poles to perform large torque production in low-speed region, namely the “magn... View full abstract»

• ### AC and Impulse Dielectric Strength of Polymer Materials Under Tensile Stress at 77 K

Publication Year: 2014, Article Sequence Number: 0601304
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The performance of dielectric materials has an important effect on influencing the service life of the electric equipments. The dielectric sheets used for superconducting devices usually endure several lapping tension when lapped on the conductor, so the AC and impulse dielectric strengths of polymer sheets under tensile status are important to dielectric design. In this paper, a special electrode... View full abstract»

• ### Modular Stator High Temperature Superconducting Flux-Switching Machines

Publication Year: 2014, Article Sequence Number: 0601405
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Flux-switching permanent magnet (FSPM) machines have advantages of robust rotor, strong permanent magnet (PM) dissipation ability, etc, but its flux-weakening capability is poor for its constant PM flux linkage. High temperature superconducting (HTS) excitation windings can produce higher flux density than PM excitation and modify the airgap flux density easily. But if the HTS coils are placed adj... View full abstract»

• ### Automatic Segmentation of 3-D Brain MR Images by Using Global Tissue Spatial Structure Information

Publication Year: 2014, Article Sequence Number: 0601505
Cited by:  Papers (1)
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Segmentation of brain tissues from MR images is medically valuable for helping to assess many diseases. In this paper, we propose a three-layer Gaussian mixture model framework (3L-GMM) for fully automatic tissue segmentation of three-dimensional brain MR images by using spatial structure information. It uses separate GMMs to model the intensity information, the spatial structure information, and ... View full abstract»

• ### New Hybrid Damping Strategy for Grid-Connected Photovoltaic Inverter With LCL Filter

Publication Year: 2014, Article Sequence Number: 0601608
Cited by:  Papers (4)
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This paper investigates the damping performance of a grid-connected photovoltaic (PV) system with inductance-capacitor-inductance (LCL) filter and develops a hybrid damping strategies which is more robust to system parameter variations, processing delay and switching frequencies. Firstly, the comprehensive model including LCL filter, inverter and the grid are developed. Then the performance of pas... View full abstract»

• ### A New Internal Detection Method for Fluid Transportation Pipeline Leak Based on Active Electrolocation

Publication Year: 2014, Article Sequence Number: 0601705
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Pipeline leak internal inspection method is a key technology of safety assessment for industrial pipeline. Weakly electric fish can sense its surrounding environment by generating electric fields and detecting distortions through their active electrolocation system. In this paper, a new internal inspection leak method for fluid transportation pipeline, the active electrolocation internal inspectio... View full abstract»

• ### Parametric Characterization and Macroscopic Quantum Tunneling of $\hbox{Nb}/\hbox{AlO}_{\rm x}/\hbox{Nb}$ Josephson Junctions

Publication Year: 2014, Article Sequence Number: 1100205
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Parameters of Nb/AlOx/Nb Josephson including its critical current and capacitance which determine the dynamic energy consumption and speed of the superconducting electronics have been measured. The critical current of a 22 × 22 μm2 junction is 1801 ± 52 μA calculated from the dependent curve between the lifetime of zero-voltage and switching curren... View full abstract»

• ### Varactor-Tuned Narrow-Band High Temperature Superconducting Notch Filter

Publication Year: 2014, Article Sequence Number: 1501104
Cited by:  Papers (1)
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A tunable narrow band high temperature superconducting (HTS) notch filter is presented. HTS folded square open loop resonator loaded with hyper-abrupt GaAs varactor is used to reach high tunability and avoid the via-hole grounding. Measured results show that the notch frequency can be tuned from 286 to 485 MHz (tuning range of 51.6%), and the attenuation from 26 to 70 dB when the bias voltage of t... View full abstract»

• ### A Tunable High Temperature Superconducting Bandpass Filter Realized Using Semiconductor Varactors

Publication Year: 2014, Article Sequence Number: 1501205
Cited by:  Papers (1)
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This paper presents a semiconductor varactor tuned four-pole bandpass filter. The filter was designed to have a constant fractional bandwidth of 3% and was tuned with single control voltage. The design methods of how to keep coupling coefficients constant and to make all the resonators tuned synchronously are described in details. The filter was built on a two-inch double-side high temperature sup... View full abstract»

• ### Research Progress of High Temperature Superconducting Filters in China

Publication Year: 2014, Article Sequence Number: 1501308
Cited by:  Papers (2)
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Recent developments in China for the design and application of high temperature superconducting (HTS) filters are reviewed. Progress in fabrication of HTS thin films with various physical and chemical methods are introduced first, since high quality double-sided thin films provide the groundwork for filters. In the past decade, hundreds of HTS filters have been designed in China with excellent per... View full abstract»

## Aims & Scope

IEEE Transactions on Applied Superconductivity contains articles on the applications of superconductivity and other relevant technology.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Britton L. T. Plourde
Syracuse University
bplourde@syr.edu
http://asfaculty.syr.edu/pages/phy/plourde-britton.html