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Cover Image for Interview with Walter B. Roberts View Article
Interview with Walter B. Roberts
Walter B. Roberts
Jan 01, 0001
In his April 25, 1980 interview with Jeff Clark, Walter Roberts shares his experience as the chair of the Music Department and a faculty member during the Great Depression. Roberts discusses morale on campus and how the...
Great Depression Artist Series Chair of Music Department Fringe Benefits Free Tuition Effects on Staff Budget Cuts Students' Attitudes Culture and Entertainment Oral History
Published by: Winthrop University
Cover Image for Walter B. Roberts Jan. 16, 1947 View Article
Walter B. Roberts Jan. 16, 1947
Winthrop News Service
Jan 01, 0001
Head of the music department at Winthrop College, Dr. Walter B. Roberts, will go to Newberry to conduct a project for the Newberry County Teacher's Association.
Published by: Winthrop University
Cover Image for Being a Singer View Article
Being a Singer
Brian A. Roberts
Nov 19, 2013
Singers both rejoice and suffer under the weight of their instrument. It becomes not only a major part of their identity but, in many cases, it becomes their central or "master status" (Hughes, 1945). This research examines the...
Published by: Faculty of Education
Cover Image for Family Donates $25,000 Gift in Memory of the Late Walter B. Roberts View Article
Family Donates $25,000 Gift in Memory of the Late Walter B. Roberts
Winthrop University
Jan 01, 0001
Roberts was chairman of a Winthrop committee that succeeded in raising money for the organ's purchase and installation in 1955. The organ gift adds to the Roberts family's longtime support and loyalty to Winthrop and its mission...
Published by: Winthrop University
Cover Image for Being a Singer View Article
Being a Singer
Brian A. Roberts
Nov 19, 2013
Singers both rejoice and suffer under the weight of their instrument. It becomes not only a major part of their identity but, in many cases, it becomes their central or "master status" (Hughes, 1945). This research examines the...
Published by: Faculty of Education
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) /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
Published by:
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
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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
Published by:
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
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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) /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
Published by:
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...
Published by:
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...

/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being
Published by:
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
Published by:
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 /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
Published by:
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 /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials
Published by:
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...
Published by:
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...

/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being
Published by:
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 /639/766/25 /639/166/987 article
Published by:
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...
Published by:
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 /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
Published by:
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
Published by:
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 /dk/atira/pure/subjectarea/asjc/3100/3100 name=General Physics and Astronomy
Published by:
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 /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials
Published by:
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
Published by:
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 /dk/atira/pure/subjectarea/asjc/2500/2504 name=Electronic, Optical and Magnetic Materials /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
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