Results 91 to 100 of about 161,573 (313)

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

DUAL THREE-PHASE ADJUSTABLE SPEED DRIVE WITH SYNCHRONIZED SPACE-VECTOR MODULATION

open access: yesProblems of the Regional Energetics, 2008
Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation (PWM), has been investigated.
Oleschuk V.I.   +3 more
doaj  

Evaluation of half wave induction motor drive for use in passenger vehicles [PDF]

open access: yes
Research performed at the University of Missouri-Columbia to devise and design a lower cost inverter induction motor drive for electrical propulsion of passenger vehicles is described. A two phase inverter motor system is recommended.
Erickson, C. L.   +4 more
core   +1 more source

Self-Commissioning Algorithm for Inverter Non-Linearity Compensation in Sensorless Induction Motor Drives [PDF]

open access: yes, 2010
In many sensorless field-oriented control schemes for induction motor (IM) drives, flux is estimated by means of measured motor currents and control reference voltages.
Armando, Eric Giacomo   +3 more
core   +1 more source

Linear-induction-motor slide drive [PDF]

open access: yes, 1977
A linear-induction-motor drive system to position machine tool slides has been developed on a test bed that utilizes an air-bearing slide, laser interferometer feedback, and a microprocessor-based servo system. Static and dynamic positioning accuracies of +-16 nm (+-0.6 .mu.in) have been demonstrated.
openaire   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Perancangan Putaran Motor Induksi Tiga Phasa Tanpa Sensor Kecepatan Dengan Pengendali Vektor Arus Dan Full Dan Reduced Observer Berada Pada Sumbu Dq [PDF]

open access: yes, 2006
Design of Induction Motor Drive Without Velocity Sensor Using Current Vector Controller with Full andReduced Observer Moving to DQ Axis. The observer is used in estimation velocity sensor usually in α-β axis,therefore this situation will need ...
Gunawan, R. (Ridwan)   +3 more
core  

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

MATHEMATICAL DRIVING MODEL OF THREE PHASE INDUCTION MOTORS IN STATIONARY COORDINATE FRAME

open access: yesDiyala Journal of Engineering Sciences, 2015
In this paper mathematical analysis for a design three-phase induction motor. Three phase AC induction motors is popular in manufacturing for many reasons. It is quite simple and minimum costs are favorable. It does not have brushes and requires minimum
Ahmed Ibrahim jaber
doaj  

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