Results 111 to 120 of about 4,165,103 (293)

Permanent-magnet flux adaptation for sensorless synchronous motor drives

, 2018
This paper deals with estimation of the permanent-magnet (PM) flux in sensorless synchronous motor drives. A back-electromotive-force (back-EMF)-based observer is augmented with an adaptation law for the PM flux magnitude.
Jarno Kukkola, Tuovinen, Toni, Saarakkala, Seppo E., Kukkola, Jarno, Seppo E. Saarakkala, Awan, Hafiz Asad Ali, Toni Tuovinen, Hafiz Asad Ali Awan, Marko Hinkkanen, Hinkkanen, Marko   +9 more
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Basic principles of variable speed drives [PDF]

, 1973
An understanding of the principles which govern variable speed drive operation is discussed for successful drive application. The fundamental factors of torque, speed ratio, and power as they relate to drive selection are discussed.
Loewenthal, S. H.
core  

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Effect of Weighting Factors in Energy Efficiency of Predictive Control of Multi-Phase Drives

Applied Sciences
Predictive current control of variable speed drives by direct command of inverter states allows fast control. Its application to multiphase system constitutes a flexible solution that tackles several objectives by means of a cost function with several ...
Esteban Marsal, Manuel R. Arahal, Manuel G. Satué, Kumars Rouzbehi   +3 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Intelligent Compact Drive System with a Synchronous Variable Reluctance Motor

Advances in Electrical and Electronic Engineering, 2004
The increase of energy costs underlines the need to use more efficient drive systems. One of the best solutions to reduce energy costs is the use of variable speed drives.
Ioan Adrian Viorel, Lorand Szabo, Radu C. Ciorba, Vasile Barz   +3 more
doaj  

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Close accord on partial discharge diagnosis during voltage harmonics in electric motors fed by variable frequency drives

IET Generation, Transmission & Distribution
Partial discharge (PD) diagnostics test is a reliable solution for estimating insulation health conditions in power system components. During laboratory PD diagnostics, the effect of harmonic components in the voltage waveform generated by variable ...
Waqar Hassan, Muhammad Akmal, Ghulam Amjad Hussain, Ali Raza, Muhammad Shafiq   +4 more
doaj   +1 more source