Results 51 to 60 of about 86,114 (305)

Efficiency Determination of Compressor Embedded Induction Motors

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021
Compressors operating in refrigeration systems, typically with built-in induction motors, represent an important energy demand. The applicability of standard methods for efficiency determination of induction motors is limited in this context by the ...
Carlos A. C. Wengerkievicz, Cristian F. Mazzola, Nelson Sadowski, Nelson J. Batistela, Ernane Silva, Cesar J. Deschamps   +5 more
doaj   +1 more source

Detection and Diagnosis of Motor Stator Faults using Electric Signals from Variable Speed Drives [PDF]

, 2015
Motor current signature analysis has been investigated widely for diagnosing faults of induction motors. However, most of these studies are based on open loop drives.
Abusaad, Samieh, Ball, Andrew, Gu, Fengshou, Hu, Niaoqing, Shaeboub, Abdulkarim   +4 more
core   +1 more source

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter, Jens‐Peter Schenk, Jenny Wegert, Manfred Gessler, Leo Kager, Stefan Wagenpfeil, Marina Müller, Jean‐Michel Wolff, Joerg Fuchs, Steven W. Warmann, Clemens‐Magnus Meier, Jochen Hubertus, Christian Rübe, Christian Vokuhl, Patrick Melchior, Lena Tschirner, Norbert Graf, Rhoikos Furtwängler   +17 more
wiley   +1 more source

Asynchronous performance analysis of a single-phase capacitor-start, capacitor-run permanent magnet motor [PDF]

, 2005
This work presents a detailed analysis of the asynchronous torque components (average cage, magnet braking torque and pulsating) for a single-phase capacitor-start, capacitor-run permanent magnet motor.
McGilp, M., Miller, T.J.E., Popescu, M., Santarossa, R., Strappazzon, G., Trivillin, N.   +5 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Performance and Safety Improvement of Induction Motors Based on Testing and Evaluation Standards

CES Transactions on Electrical Machines and Systems
The induction motor, which converts electrical energy into mechanical energy, has been recognized as the cornerstone of industrialization. The rotor of an induction motor can be either a squirrel cage rotor or a wound-type rotor, both existing as ...
Nkosinathi S. Khumalo, Ntombizotwa P. Memane, Udochukwu Bola Akuru   +2 more
doaj   +1 more source

Decomposition of aggregated load: finding induction motor fraction in real load [PDF]

, 2009
The main contribution of this paper is decomposition/separation of the compositie induction motors load from measurement at a system bus. In power system transmission buses load is represented by static and dynamic loads.
Ledwich, Gerard, Parveen, Tania
core   +1 more source

Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]

, 2005
This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
daSilva, C., Kalluf, F.J.H., McGilp, M.I., Miller, T.J.E., Popescu, M., von Dokonal, L.   +5 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Time-Frequency Analysis Based on Minimum-Norm Spectral Estimation to Detect Induction Motor Faults

Energies, 2020
In this work, a new time-frequency tool based on minimum-norm spectral estimation is introduced for multiple fault detection in induction motors. Several diagnostic techniques are available to identify certain faults in induction machines; however, they ...
Tomas A. Garcia-Calva, Daniel Morinigo-Sotelo, Oscar Duque-Perez, Arturo Garcia-Perez, Rene de J. Romero-Troncoso   +4 more
doaj   +1 more source