Results 41 to 50 of about 29,705,142 (291)

Elegant procedure to estimate series capacitance of a uniform transformer winding from its measured FRA: implementable on existing FRA instruments

High Voltage, 2020
A simple procedure to estimate series capacitance of a uniform transformer winding from its measured frequency response analysis (FRA) and shunt capacitance is presented. Unlike previously published approaches, this method does not involve any cumbersome
Ashiq Muhammed, Lakshminarayana Satish, Udaya Kumar, Udaya Kumar   +3 more
doaj   +1 more source

Application of Frequency Response Analysis Technique to Detect Transformer Tap Changer Faults

Applied Sciences, 2021
Power transformers are located in the electrical transmission and distribution networks where different voltage levels are needed. The turn ratio of the low voltage and high voltage windings is mechanically controlled by an on-load tap changer or de ...
Salem Mgammal Al-Ameri, Abdulaziz Almutairi, Muhammad Saufi Kamarudin, Mohd Fairouz Mohd Yousof, Ahmed Abu-Siada, Mohamed Ibrahim Mosaad, Saeed Alyami   +6 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

FFT Frequency-response Program (Data File 3)

, 2022
 "Frequency-response program.csv" is  the FFT frequency response program based on Matlab 7.0.  
Kuo Li (1468930)
core   +1 more source

Toward Online Frequency Response Analysis of In-Service Power Transformers: A Single-Coil Three-Phase Parallel-Connected Sensing System

IEEE Access
Winding deformation is an important contributor to power transformer faults and forced outages. Effective and mature online detection methods are still lacking.
Sen Yang, Yuhan Wang, Guangmao Li, Yangchun Cheng, Shirui Gao, Yuanshu Wei   +5 more
doaj   +1 more source

Transmission Lines Impedance Fitting Using Analytical Impedance Equation and Frequency Response Analysis

Mathematics, 2022
Rational function approximation is commonly used to fit the transmission line impedance over a wide frequency range. Nevertheless, it is computationally costly and challenging to implement in practical applications due to the high number of ...
Hosam Alharbi, Muhammad Khalid, Mohammad Abido   +2 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Detection of Winding Axial Displacement of a Real Transformer by Frequency Response Analysis without Fingerprint Data

Energies, 2021
Detection of the axial displacement of power-transformer winding is important to ensure its highly reliable operation. Frequency response analysis is a promising candidate in detecting the axial displacement.
Satoru Miyazaki
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Concurrent second-order schedules: some effects of variations in response number and duration [PDF]

, 2005
To examine the effects on concurrent performance of independent manipulations of response-unit duration and number, 6 hens were exposed to concurrent second-order schedules of reinforcement.
Catherine E. Sumpter, Diane M. Sealey, Sealey, Diane M., Foster, T. Mary, Temple, William, W. Temple, T. Mary Foster, Sumpter, Catherine E.   +7 more
core   +1 more source