Results 61 to 70 of about 828,869 (250)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Improvement of Electromagnetic Forces in a Single-Phase Induction Motor by Providing a New Winding Distribution

Iranian Journal of Electrical and Electronic Engineering, 2020
Single-phase induction motors have a wide range of domestic and industrial applications. These motors have a squirrel cage rotor and their stator usually has two windings: main and auxiliary.
H. Shadfar, H. R. Izadfar
doaj  

Comparative Study of Induction Motor De-Rating Factors [PDF]

The Egyptian International Journal of Engineering Sciences and Technology, 2017
Induction motors are the commonly used motors in power industries, due to its lowprice, maintenance and easy to control, it consumes about 40% of the electricalenergy all over the world.
H Abdo, N Elsonbaty, F Abdel-Kader, M Enanya   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
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

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

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Torque prediction using the flux-MMF diagram in AC, DC, and reluctance motors [PDF]

, 1996
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (ψ-i) diagram for switched-reluctance ...
Deodhar, R.P., Soong, W.L., Miller, T.J.E., Staton, D.A.   +3 more
core   +1 more source

COMPARATIVE ANALYSIS OF ACTIVE POWER LOSSES OF INDUCTION MOTORS WITH CYLINDRICAL AND AXIAL AIR GAPS

Electrical engineering & Electromechanics, 2015
Purpose. To find the analytical expressions of determining the optimum geometric dimensions by criteria of the losses minimum of axial field squirrel-cage induction motors and to compare traditional and axial field motors. Methodology.
А.А. Stavinskii, О.О. Palchykov
doaj  

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