Results 71 to 80 of about 454,383 (296)

Passivity-Based PI Control Method of MMC with Asymmetric Bridge Arms

open access: yesZhongguo dianli, 2023
Considering asymmetric bridge arms of modular multilevel converter (MMC), a passivity-based PI control method based on the bilinear model is proposed to address the dq decoupling transformation errors caused by the fundamental frequency component ...
Cheng CHEN   +3 more
doaj   +1 more source

Load cell for thermionic converter tests [PDF]

open access: yes, 1970
Stable, low duty cycle transistorized emitter follower load cell controls and absorbs large currents at low voltages. The use of energy storage in capacitors reduces auxiliary power source requirements.
Breitwieser, R., Manista, E. J.
core   +1 more source

Magnetic vortex-antivortex crystals generated by spin-polarized current

open access: yes, 2012
We study vortex pattern formation in thin ferromagnetic films under the action of strong spin-polarized currents. Considering the currents which are polarized along the normal of the film plane, we determine the critical current above which the film goes
A. I. Akhiezer   +6 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Magnetosphere dynamics during the 14 November 2012 storm inferred from TWINS, AMPERE, Van Allen Probes, and BATS-R-US–CRCM [PDF]

open access: yesAnnales Geophysicae, 2018
During the 14 November 2012 geomagnetic storm, the Van Allen Probes spacecraft observed a number of sharp decreases (dropouts) in particle fluxes for ions and electrons of different energies.
N. Buzulukova   +10 more
doaj   +1 more source

Stepwise Current Increment Sintering of Silver Nanoparticle Structures

open access: yesCrystals, 2021
Owing to its unique properties, silver (Ag) in the form of nanoparticle (NP) ink promises to play a vital role in the development of printed and flexible electronics.
Dongkeun Kim   +5 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Ratiometric temperature stable current reference

open access: yesElectronics Letters, 1993
Current-mode integraed circuit design leads to the use of a current reference achieving good temperature compensation. A novel circuit is described, which has good performance based on a ratiometric expression that is easily reproduced. As a bonus, the circuit acts as a PTAT (proportional to absolute temperature) reference without any structural change.
Y. Deval, S.G. Ducouret, J.P. Dom
openaire   +1 more source

A wide range temperature stable integrated current reference [PDF]

open access: yesESSCIRC 2004 - 29th European Solid-State Circuits Conference (IEEE Cat. No.03EX705), 2003
A current reference integrated circuit was built in a 2 micron CMOS process base on SIMOX technology, without the need of external trimming, to provide 19.5/spl mu/A. the overall error was less than +/-1% ( 10V), at a power consumption of less than 1.5 mW. From -15 to 90/spl deg/C the TC was < 12 ppm/K, derived by higher order temperature compensation.
Matthias Radecker   +4 more
openaire   +1 more source

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

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