Results 61 to 70 of about 657,267 (315)

Computerized system for translating a torch head [PDF]

open access: yes, 1978
The system provides a constant travel speed along a contoured workpiece. It has a driven skate characterized by an elongated bed, with a pair of independently pivoted trucks connected to the bed for support. The trucks are mounted on a contoured track of
Bruce, M. M., Jr.   +4 more
core   +1 more source

Feasibility of a Simple Small Wind Turbine with Variable-Speed Regulation Made of Commercial Components [PDF]

open access: yes, 2013
The aim of this study was to propose and evaluate a very small wind turbine (VSWT) that competes with commercial grid-connected VSWTs in terms of simplicity, robustness and price.
Andrés Bravo Cuesta   +6 more
core   +3 more sources

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

Control and operation of a new 8/6-pole doubly salient permanent-magnet motor drive [PDF]

open access: yes, 2003
This paper proposes a new 8/6-pole doubly salient permanent-magnet (DSPM) motor drive, which offers the advantages of higher power density, higher efficiency, and wider speed range. The corresponding control and operation of the motor drive are presented.
Chan, CC, Chau, KT, Cheng, M, Sun, Q
core   +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

Speed-Control of Energy Regulation Based Variable-Speed Electrohydraulic Drive

open access: yesStrojniški vestnik – Journal of Mechanical Engineering, 2013
The variable-speed electrohydraulic drive is a promising drive principle due to its high energy efficiency and large speed-range. However, its slow response and poor low-speed behaviour limit its application. To address these disadvantages, a energy regulation based variable-speed electrohydraulic drive is proposed.
Chen, Guojin   +3 more
openaire   +2 more sources

The Detection of Shaft Misalignments using Motor Current Signals from a Sensorless Variable Speed Drive [PDF]

open access: yes, 2015
Shaft misalignments are common problems in rotating machines which cause additional dynamic and static loads, and vibrations in the system, leading to early damages and energy loss.
Abusaad, Samieh   +4 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS 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   +4 more
wiley   +1 more source

Pengaruh Arus Harmonisa Pada Unjuk Kerja Sistem Open-Loop Variable Speed Drive Motor Induksi Menggunkanan Inverter

open access: yesDinamika Rekayasa, 2016
One of the  the inverter’s applications is in Variable Speed Drive (VSD) to control the speed of an induction motor by varying  the voltage or the output frequency of the inverter. Induction motor reliability driven by using inverter is often affected by
Suroso Suroso   +3 more
doaj  

Investigations on the performances of the electrical generator of a rim-driven marine current turbine” [PDF]

open access: yes, 2014
In this paper, the electrical generator of a rim-driven horizontal-axis current turbine is modeled in detail. Its main characteristics and performances are evaluated (efficiency, mass, cost, etc).
CHARPENTIER, Jean-Frederic   +3 more
core   +1 more source

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