Results 121 to 130 of about 83,304 (314)

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

open access: yesCES 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   +2 more
doaj   +1 more source

High frequency losses in induction motors, part 2 [PDF]

open access: yes
The following subject areas are covered: high frequency losses in induction motors; stray losses in induction motors; and high frequency time harmonic losses in induction ...
Nasar, Syed A., Novotny, Donald W.
core   +1 more source

A comparison of the asynchronous motor characteristics with squirrel cage by replacing the material of the rotor winding and suggestions for improvement [PDF]

open access: yes, 2014
В статье проанализированы вопросы изменения геометрии зубцовой зоны ротора асинхронного двигателя, которые необходимо выполнить при изменении материала обмотки ротора, с целью обеспечения достаточных пусковых характеристик и сохранения энергетических ...
Горюшкин, Никита Игоревич   +2 more
core  

The fc fragment of IgMs binds C1q to activate the first step of the classical complement pathway, while inhibiting complement‐dependent cytotoxicity

open access: yesThe FEBS Journal, EarlyView.
Multimeric IgM‐fragment crystallizable region (Fc) fragments retain the ability to bind C1q and initiate the classical complement pathway, leading to C4 activation and deposition in vitro. However, the Fc cores can also inhibit complement‐dependent cytotoxicity by competing with surface‐bound antibodies for C1q engagement.
Andrea J. Pinto   +9 more
wiley   +1 more source

Self-excited wound rotor synchronous motors for electric vehicles: Techniques and multiphase winding design strategies

open access: yesAlexandria Engineering Journal
Self-excited wound rotor synchronous motors (WRSM) have emerged as a promising substitute to permanent magnet (PM) motors in electric vehicles (EVs), offering significant cost reductions and alleviating concerns over PM material availability ...
Ahmed T. Abdel-Wahed   +4 more
doaj   +1 more source

Design validation of a laboratory-scale wind turbine emulator

open access: yesCogent Engineering, 2017
Presented in this study is an investigation of the real-time performance of a laboratory-scale model of wind turbine emulator. Developed to provide a cost-effective experimental facility for demonstrating and validating wind energy conversion systems at ...
Titus Oluwasuji Ajewole   +3 more
doaj   +1 more source

Extracellular vesicles released from melanoma cells constitutively expressing MHC class II promote immune evasion and cancer progression

open access: yesThe FEBS Journal, EarlyView.
Here, we report the role of extracellular vesicles (EVs) released from melanoma cells constitutively expressing MHC class II in the regulation of immune cell functions and melanoma metastasis. In particular, we observed an increased localization of HLA‐DRα, CAM receptors, PD‐L1, and STAT3 signaling proteins in the EVs.
Francesca Costantini   +4 more
wiley   +1 more source

Magnetically suspended flywheel system study [PDF]

open access: yes, 1984
A program to study the application of a graphite/epoxy, magnetically suspended, pierced disk flywheel for the combined function of spacecraft attitude control and energy storage (ACES) is described.
Anand, D. K.   +3 more
core   +1 more source

Heat stress alters metabolic pathways and nitric oxide signaling in keratinocytes under hyperglycemia

open access: yesJournal of Diabetes Investigation, EarlyView.
This illustration depicts the effects of thermal stress on human keratinocytes maintained in both normal and high‐glucose conditions. Under normal glucose conditions, heat exposure enhances arginine metabolism and increases nitric oxide (NO) production, which promotes alterations in mitochondrial morphology and elevates heat shock protein 70 (Hsp70 ...
Syeda Tayyiba Rahat   +4 more
wiley   +1 more source

A dc servosystem including an ac motor [PDF]

open access: yes, 1971
Closed loop servosystem for variable speed tape recorders on board ...
Bahm, E. J.
core   +1 more source

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