Results 121 to 130 of about 717,747 (301)

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

open access: yesAdvanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi   +9 more
wiley   +1 more source

The inverse gamma model in field oriented control

open access: yes, 1992
In order to control a three-phase induction motor in a similar fashion to that of a DC machine, the induction motor equivalent circuit must be analyzed in terms of torque and field current quantities.
Smith, Richard B.
core  

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

open access: yesAdvanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda   +9 more
wiley   +1 more source

Comparison between FOC and DTC Strategies for Permanent Magnet Synchronous Motors

open access: yesAdvances in Electrical and Electronic Engineering, 2006
This paper presents a comparison between two control strategies for Permanent Magnet Synchronous Motors (PMSM): Field Oriented Control (FOC) and Direct Torque Control (DTC).
Xavier del Toro Garcia   +4 more
doaj  

Field Oriented Control in Squirrel Cage Induction Wind Generators

open access: yes, 2021
The foremost purpose of Field Oriented Control is to control the electromagnetic torque of the squirrel cage induction wind generator and to absorb the maximum power from wind when the speed changes [3].
Hamed Zaki
core  

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

FIELD ORIENTATION CONTROL OF STEPPER MOTORS [PDF]

open access: yesERJ. Engineering Research Journal, 2012
Samia M. Mahmoud   +3 more
openaire   +1 more source

Liquor control decision; State of Connecticut, Department of Consumer Protection, before the Liquor Control Commission

open access: yes, 2009
Irregular; Some issues lack docket or permit number.; Prepared for Connecticut. Liquor Control Commission by Connecticut.
Connecticut. Liquor Control Commission.
core  

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

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