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Cover Image for AC Loss Characterization of HTS Pancake and Solenoid Coils Carrying Nonsinusoidal Currents View Article
AC Loss Characterization of HTS Pancake and Solenoid Coils Carrying Nonsinusoidal Currents
Mohammad Yazdani-Asrami, Wenjuan Song, Xiaoze Pei, Min Zhang, Weijia Yuan
Aug 01, 2020

Application of high-temperature superconducting devices become promising in power networks, and transportation, including ship, train, and electric aircraft propulsion systems, with the advantages of light weight, compact...

AC loss H formulation double pancake coil (DPC) nonsinusoidal currents single pancake coil (SPC) solenoid coil (SNC)
Cover Image for Chronic Supplementation With a Mitochondrial Antioxidant (MitoQ) Improves Vascular Function in Healthy Older Adults. View Article
Chronic Supplementation With a Mitochondrial Antioxidant (MitoQ) Improves Vascular Function in Healthy Older Adults.
Matthew J Rossman, Jessica R Santos-Parker, Chelsea AC Steward, Nina Z Bispham, Lauren M Cuevas, Hannah L Rosenberg, Kayla A Woodward, Michel Chonchol, Rachel A Gioscia-Ryan, Michael P Murphy, Douglas R Seals
Sep 05, 2018
aging arterial stiffness Endothelium Mitochondria Reactive Oxygen Species Aged antioxidants Brachial Artery Cross-Over Studies Dietary Supplements Double-Blind Method Endothelium Vascular Female Follow-Up Studies Healthy Volunteers Humans Male Middle Aged Mitochondria Oxidative Stress Reactive Oxygen Species Vascular Stiffness Vasodilation
Cover Image for AC Loss in High-Temperature Superconducting Bulks Subjected to Alternating and Rotating Magnetic Fields. View Article
AC Loss in High-Temperature Superconducting Bulks Subjected to Alternating and Rotating Magnetic Fields.
Wafa Ali Soomro, Youguang Guo, Haiyan Lu, Jianxun Jin, Boyang Shen, Jianguo Zhu
Feb 21, 2023
High-temperature superconductor (HTS) bulks have demonstrated extremely intriguing potential for industrial and commercial applications due to their capability to trap significantly larger magnetic fields than conventional...
AC loss HTS bulks high-temperature superconductors rotating magnetic fields
Cover Image for Total AC loss study of 2G HTS coils for fully HTS machine applications View Article
Total AC loss study of 2G HTS coils for fully HTS machine applications
Min Zhang, Weijia Yuan, Jozef Kvitkovic, Sastry Pamidi
Sep 29, 2015

The application of HTS coils for fully HTS machines has become a new research focus. In the stator of an electrical machine, HTS coils are subjected to a combination of an AC applied current and AC external magnetic field....

2G HTS AC loss fully HTS machine numerical modeling
Cover Image for Effect of winding methods View Article
Effect of winding methods
J Zhao, SY Gao, BH Wu, XS Yang, B Shen, W Chen, Y Zhao
Oct 07, 2022
Abstract AC losses undoubtedly increase the burden on the cooling system and affect the overall performance of high-temperature superconducting (HTS) cables. Therefore, AC losses...
HTS conductor AC loss CORC coil magnet winding method
Cover Image for Measurements and calculations of transport AC loss in second generation high temperature superconducting pancake coils View Article
Measurements and calculations of transport AC loss in second generation high temperature superconducting pancake coils
Weijia Yuan, T A Coombs, J H Kim, C H Kim, J Kvitkovic, S Pamidi
Dec 01, 2011
Theoretical and experimental AC loss data on a superconducting pancake coil wound using second generation (2 G) conductors are presented. An anisotropic critical state model is used to calculate critical current and the AC...
Cover Image for AC Loss Characterization of HTS Pancake and Solenoid Coils Carrying Nonsinusoidal Currents View Article
AC Loss Characterization of HTS Pancake and Solenoid Coils Carrying Nonsinusoidal Currents
Mohammad Yazdani-Asrami, Wenjuan Song, Xiaoze Pei, Min Zhang, Weijia Yuan
Aug 01, 2020

Application of high-temperature superconducting devices become promising in power networks, and transportation, including ship, train, and electric aircraft propulsion systems, with the advantages of light weight, compact...

AC loss H formulation double pancake coil (DPC) nonsinusoidal currents single pancake coil (SPC) solenoid coil (SNC)
Cover Image for Structural basis of Ac-SDKP hydrolysis by Angiotensin-I converting enzyme View Article
Structural basis of Ac-SDKP hydrolysis by Angiotensin-I converting enzyme
Geoffrey Masuyer, Ross G. Douglas, Edward D. Sturrock, K. Ravi Acharya
Sep 25, 2015

Angiotensin-I converting enzyme (ACE) is a zinc dipeptidylcarboxypeptidase with two active domains and plays a key role in the regulation of blood pressure and electrolyte homeostasis, making it the principal target in the...

Cover Image for Total AC loss study of 2G HTS coils for fully HTS machine applications View Article
Total AC loss study of 2G HTS coils for fully HTS machine applications
Min Zhang, Weijia Yuan, Jozef Kvitkovic, Sastry Pamidi
Sep 29, 2015

The application of HTS coils for fully HTS machines has become a new research focus. In the stator of an electrical machine, HTS coils are subjected to a combination of an AC applied current and AC external magnetic field....

2G HTS AC loss fully HTS machine numerical modeling
Cover Image for AC Transport Loss in Superconductors Carrying Harmonic Current with Different Phase Angles for Large Scale Power Components View Article
AC Transport Loss in Superconductors Carrying Harmonic Current with Different Phase Angles for Large Scale Power Components
Mohammad Yazdani-Asrami, Wenjuan Song, Min Zhang, Weijia Yuan, Xiaoze Pei
Jan 31, 2021

It is of great industrial interest and academic importance to investigate current harmonics impacts on AC losses of superconductors, especially in large-scale power devices. However, only effect of amplitude of in-phase...

AC loss harmonic phase angle higherature superconducting (HTS) tapes nonsinusoidal current
Cover Image for Resistive Superconducting Fault Current Limiter AC Loss Measurements and Analysis View Article
Resistive Superconducting Fault Current Limiter AC Loss Measurements and Analysis
Xiaoze Pei, Xianwu Zeng, Alexander C. Smith, Daniel Malkin
Jun 30, 2016

Resistive superconducting fault current limiters (SFCLs) offer the advantages of low weight and compact structure. Multistrand magnesium diboride (MgB2) wire can be used in the SFCL coil design to increase the...

AC losses FE model Multi-strand superconductors
Cover Image for LEDs driven by AC without transformers or rectifiers. View Article
LEDs driven by AC without transformers or rectifiers.
Robin W Hughes, Mark Warner
Jan 04, 2021
We explore the driving of LEDs by untransformed AC. An extreme case is driving 1.9 V threshold (red) LEDs with UK mains, peak voltage 325 V. Commonly, driving is by transformed, rectified (DC) supply with a series resistor...
Cover Image for LEDs driven by AC without transformers or rectifiers View Article
LEDs driven by AC without transformers or rectifiers
Robin W. Hughes, Mark Warner
Jan 13, 2021
Abstract: We explore the driving of LEDs by untransformed AC. An extreme case is driving 1.9 V threshold (red) LEDs with UK mains, peak voltage 325 V. Commonly, driving is by transformed, rectified (DC) supply with a series...
article article
Cover Image for Structural basis of Ac-SDKP hydrolysis by Angiotensin-I converting enzyme View Article
Structural basis of Ac-SDKP hydrolysis by Angiotensin-I converting enzyme
Geoffrey Masuyer, Ross G. Douglas, Edward D. Sturrock, K. Ravi Acharya
Sep 25, 2015

Angiotensin-I converting enzyme (ACE) is a zinc dipeptidylcarboxypeptidase with two active domains and plays a key role in the regulation of blood pressure and electrolyte homeostasis, making it the principal target in the...

Cover Image for Measurements and calculations of transport AC loss in second generation high temperature superconducting pancake coils View Article
Measurements and calculations of transport AC loss in second generation high temperature superconducting pancake coils
Weijia Yuan, T A Coombs, J H Kim, C H Kim, J Kvitkovic, S Pamidi
Dec 01, 2011
Theoretical and experimental AC loss data on a superconducting pancake coil wound using second generation (2 G) conductors are presented. An anisotropic critical state model is used to calculate critical current and the AC...
Cover Image for AC Losses measurement and analysis for a 2G YBCO coil in metallic containment vessels View Article
AC Losses measurement and analysis for a 2G YBCO coil in metallic containment vessels
Xiaoze Pei, Alexander C. Smith, Mike Barnes
Jun 01, 2017
AC losses in high temperature superconductors (HTS) are an important design parameter for large scale power applications. It is often necessary to have a metallic containment vessel to house the superconducting element in a...
AC losses containment vessel Eddy current loss hysteresis loss skin effect
Cover Image for 15% reduction in AC loss of a 3-phase 1 MVA HTS transformer by exploiting asymmetric conductor critical current View Article
15% reduction in AC loss of a 3-phase 1 MVA HTS transformer by exploiting asymmetric conductor critical current
Zhenan Jiang, Wenjuan Song, Xiaoze Pei, Jin Fang, Rodney A Badcock, Stuart C Wimbush
Feb 04, 2021
An asymmetric dependence of the critical current on the direction of an applied magnetic field in HTS coated conductors has a non-trivial influence on the AC loss of coil windings. We report the modelled influence of real...
Acloss Asymmetric critical current Hts transformer ReBCO coated conductors
Cover Image for AC Transport Loss in Superconductors Carrying Harmonic Current with Different Phase Angles for Large Scale Power Components View Article
AC Transport Loss in Superconductors Carrying Harmonic Current with Different Phase Angles for Large Scale Power Components
Mohammad Yazdani-Asrami, Wenjuan Song, Min Zhang, Weijia Yuan, Xiaoze Pei
Jan 31, 2021

It is of great industrial interest and academic importance to investigate current harmonics impacts on AC losses of superconductors, especially in large-scale power devices. However, only effect of amplitude of in-phase...

AC loss harmonic phase angle higherature superconducting (HTS) tapes nonsinusoidal current
Cover Image for AC Losses measurement and analysis for a 2G YBCO coil in metallic containment vessels View Article
AC Losses measurement and analysis for a 2G YBCO coil in metallic containment vessels
Xiaoze Pei, Alexander C. Smith, Mike Barnes
Jun 01, 2017
AC losses in high temperature superconductors (HTS) are an important design parameter for large scale power applications. It is often necessary to have a metallic containment vessel to house the superconducting element in a...
AC losses containment vessel Eddy current loss hysteresis loss skin effect
Cover Image for Resistive Superconducting Fault Current Limiter AC Loss Measurements and Analysis View Article
Resistive Superconducting Fault Current Limiter AC Loss Measurements and Analysis
Xiaoze Pei, Xianwu Zeng, Alexander C. Smith, Daniel Malkin
Jun 30, 2016

Resistive superconducting fault current limiters (SFCLs) offer the advantages of low weight and compact structure. Multistrand magnesium diboride (MgB2) wire can be used in the SFCL coil design to increase the...

AC losses FE model Multi-strand superconductors
Cover Image for Application of Flux Diverters in High Temperature Superconducting Transformer Windings for AC Loss Reduction View Article
Application of Flux Diverters in High Temperature Superconducting Transformer Windings for AC Loss Reduction
Xinyu Fang, Xilian Wang, Yueming Sun, Wenjuan Song, Xiaoze Pei, Zhenan Jiang, Rodney Badcock, Nicholas Long, Jin Fang
Nov 30, 2021

Flux diverters (FDs) are used in High Temperature Superconducting (HTS) transformers for AC loss reduction and flux optimization. In this paper, a 2D axial symmetric superconducting winding model is proposed and two designs...

AC loss analysis Concentric Windings Hts transformer magnetic flux analysis
Cover Image for InGaN as a Substrate for AC Photoelectrochemical Imaging. View Article
InGaN as a Substrate for AC Photoelectrochemical Imaging.
Bo Zhou, Anirban Das, Menno J Kappers, Rachel A Oliver, Colin J Humphreys, Steffi Krause
Jan 09, 2020
AC photoelectrochemical imaging at electrolyte-semiconductor interfaces provides spatially resolved information such as surface potentials, ion concentrations and electrical impedance. In this work, thin films of InGaN/GaN were...
cell imaging light-activated electrochemistry light-addressable potentiometric sensor photoelectrochemistry
Cover Image for Experimental Test and Analysis of AC Losses in Multifilamentary MgB <sub>2</sub> Wire View Article
Experimental Test and Analysis of AC Losses in Multifilamentary MgB <sub>2</sub> Wire
Jiawen Xi, Xiaoze Pei, Jie Sheng, Hideki Tanaka, Yota Ichiki, Min Zhang, Weijia Yuan
Aug 01, 2019

AC losses in superconductors are essential for the design of cooling system for large scale power applications. Magnesium diboride (MgB 2 ) superconducting wires have been investigated and manufactured over the...

Cover Image for AC Loss Calculation on a 6.5 MVA/25 kV HTS Traction Transformer with Hybrid Winding Structure View Article
AC Loss Calculation on a 6.5 MVA/25 kV HTS Traction Transformer with Hybrid Winding Structure
Wenjuan Song, Zhenan Jiang, Mike Staines, Stuart Wimbush, Rodney Badcock, Jin Fang
Jun 01, 2020
HTS wire cost is a critical factor for successful commercialization of HTS traction transformer technology. Wire cost might be min-imized without significantly increasing AC loss by introducing a hybrid winding structure: the...
AC loss hybrid winding structure traction transformer wire cost
Cover Image for AC Loss Calculation on a 6.5 MVA/25 kV HTS Traction Transformer with Hybrid Winding Structure View Article
AC Loss Calculation on a 6.5 MVA/25 kV HTS Traction Transformer with Hybrid Winding Structure
Wenjuan Song, Zhenan Jiang, Mike Staines, Stuart Wimbush, Rodney Badcock, Jin Fang
Jun 01, 2020
HTS wire cost is a critical factor for successful commercialization of HTS traction transformer technology. Wire cost might be min-imized without significantly increasing AC loss by introducing a hybrid winding structure: the...
AC loss hybrid winding structure traction transformer wire cost

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