Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Chris, Pappas"'
Publikováno v:
Data in Brief, Vol 51, Iss , Pp 109658- (2023)
This paper presents real operational data collected from the power systems of the Spallation Neutron Source facility, which provides the most intense neutron beam in the world. The authors have used a radio-frequency test facility (RFTF) and simulate
Externí odkaz:
https://doaj.org/article/d7af4aad23d341ddb0d7d7392cb59766
Autor:
Yasir Alanazi, Malachi Schram, Kishansingh Rajput, Steven Goldenberg, Lasitha Vidyaratne, Chris Pappas, Majdi I. Radaideh, Dan Lu, Pradeep Ramuhalli, Sarah Cousineau
Publikováno v:
Machine Learning with Applications, Vol 13, Iss , Pp 100484- (2023)
We present a multi-module framework based on Conditional Variational Autoencoder (CVAE) to detect anomalies in the power signals coming from multiple High Voltage Converter Modulators (HVCMs). We condition the model with the specific modulator type t
Externí odkaz:
https://doaj.org/article/249bc77939d846c5abae8ea3e340255d
Autor:
Steven Goldenberg, Malachi Schram, Kishansingh Rajput, Thomas Britton, Chris Pappas, Dan Lu, Jared Walden, Majdi I Radaideh, Sarah Cousineau, Sudarshan Harave
Publikováno v:
Machine Learning: Science and Technology, Vol 5, Iss 4, p 045009 (2024)
Accurate uncertainty estimations are essential for producing reliable machine learning models, especially in safety-critical applications such as accelerator systems. Gaussian process models are generally regarded as the gold standard for this task;
Externí odkaz:
https://doaj.org/article/1612fda88dd3469a9ae4adcf8f62f9f5
Publikováno v:
International Journal of Prognostics and Health Management, Vol 14, Iss 1 (2023)
Early fault detection and fault prognosis are crucial to ensure efficient and safe operations of complex engineering systems such as the Spallation Neutron Source (SNS) and its power electronics (high voltage converter modulators). Following an advan
Externí odkaz:
https://doaj.org/article/492e86b0f5a14ac2b779dd7f5f3a91af
Publikováno v:
Data in Brief, Vol 43, Iss , Pp 108473- (2022)
This article describes real time series datasets collected from the high voltage converter modulators (HVCM) of the Spallation Neutron Source facility. HVCMs are used to power the linear accelerator klystrons, which in turn produce the high-power rad
Externí odkaz:
https://doaj.org/article/3e92780a606547f38ee636afee63d898
Autor:
Juan Carlos Q. Velez, Florence Wong, K. Rajender Reddy, Arun J. Sanyal, Hugo E. Vargas, Michael P. Curry, Stevan A. Gonzalez, S. Chris Pappas, Khurram Jamil
Publikováno v:
Kidney360.
Publikováno v:
Clinical Gastroenterology and Hepatology.
Autor:
Samuel H. Sigal, Arun J. Sanyal, R. Todd Frederick, Ethan M. Weinberg, S. Chris Pappas, Khurram Jamil
Publikováno v:
Clinical Gastroenterology and Hepatology.
Publikováno v:
Alimentary pharmacologytherapeuticsREFERENCES. 57(1)
Publikováno v:
Annual Conference of the PHM Society. 14
High voltage converter modulators (HVCM) provide power to the accelerating cavities of the Spallation Neutron Source (SNS) facility. HVCMs experience catastrophic failures, which increase the downtime of the SNS and reduce beam time. The faults may o