Results 61 to 70 of about 37,003 (356)

Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]

, 2006
In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Ramírez, Jorge, Valecillos, Baudilio
core   +3 more sources

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

Real Time Measurement of Average Winding Resistances of Transformers

Gazi Üniversitesi Fen Bilimleri Dergisi, 2018
The monitoring of transformers that are expensive equipment of power systems is the one of important issues. Transformer monitoring systems are usually used in order to detect failures, to determine the lifetime, to measure losses and to monitor winding
Cenk GEZEGİN, Hasan DİRİK, Muammer ÖZDEMİR   +2 more
doaj   +1 more source

A novel energy router based on multi‐winding line frequency transformer

IET Generation, Transmission & Distribution, 2023
Energy routers based on the electronic power transformer are suitable for the AC–DC hybrid grid with multiple voltage levels, but their structures are complex.
Zhitao Guan, Dan Wang, Qing Duan, Chengxiong Mao, Bin Liu   +4 more
doaj   +1 more source

Power supply Patent [PDF]

, 1968
Power supply with automatic power factor conversion ...
Kramer, M., Martinage, L. H.
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Methodology to locate and quantify radial winding deformation in power transformers

High Voltage, 2017
Frequency response analysis (FRA) is a tool that can be used to detect changes within the structural geometry of a transformer. One application of FRA is to detect winding displacement after the transformer experiences an overcurrent event.
Steven D. Mitchell, James S. Welsh
doaj   +1 more source

Adjustment of model parameters to estimate distribution transformers remaining lifespan [PDF]

, 2018
Currently, the electrical system in Argentina is working at its maximum capacity, decreasing the margin between the installed power and demanded consumption, and drastically reducing the service life of transformer substations due to overload (since the ...
Gotay Sardiñas, Jorge, Jimenez, Victor Adrian, Rodriguez, Sebastian Alberto, Will, Adrian L. E.   +3 more
core   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source

Thermal-flow characteristics analysis of a novel resilient capacity ceramic insulated winding dry type transformer

AIP Advances
With the increasing demand for the resilient capacity of transformers in high-proportion renewable energy grids, the overload capacity of transformers and the thermal conductivity of winding insulation materials have been put forward as important ...
Haomin Li, Qirui Zhang, Li Lei, Yingsan Geng, Jianhua Wang   +4 more
doaj   +1 more source