Results 71 to 80 of about 43,927 (298)

Dynamic and Adjustable New Pattern Four-Vector SVPWM Algorithm for Application in a Five-Phase Induction Motor

open access: yesEnergies, 2020
In order to improve the Direct Current (DC) bus utilization ratio and realize harmonic suppression of a five-phase induction motor, the SVPWM (Space Vector Pulse Width Modulation) algorithm was researched in depth.
Jinhong Li, Dawei Meng
doaj   +1 more source

Optimized Zero Vector Selection in Space Vector Pulse Density Modulation Schemes for Two-Level Inverter Fed Induction Motor Drive

open access: yesAdvances in Electrical and Computer Engineering, 2023
Space Vector Pulse Density Modulation (SVPDM) schemes for adjustable speed drives are digital modulation scheme with less computational overhead. The SVPDM based drives provide better spectral features and reduced acoustic noise in motor than Space ...
JEESHMA, M. P.   +3 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

Comparison between Three Phase and Five Phase Induction Motor by using Converter

open access: yes, 2015
Multiphase variable speed drives are becoming strong contenders for various applications. Industries have accepted the multilevel voltage source inverters (VSIs) and converters technologies in three-phase systems.
, Shraddha R Vinchurkar, Prasanna A.Pothi
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Analysis of transient temperature field of five-phase induction motor with composite winding under different operating conditions

open access: yesCase Studies in Thermal Engineering
Temperature rise of the multiphase motor is closely related to its operating condition and winding connection mode. When the motor is in overload and fault-tolerant operation, the unbalanced winding current may lead to the local overheating of the ...
Yunyan Xia   +3 more
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

An on-line method for stator fault detection in multi-phase PMSM drives [PDF]

open access: yes, 2010
VPPCinfo:eu-repo/semantics ...
Johan Gyselinck   +5 more
core   +1 more source

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