Results 81 to 90 of about 5,222,654 (247)

Bit-Interleaved Sphere-Packing-Aided Iteratively Detected Space-Time Coded Modulation

open access: yes, 2009
We design a bit-interleaved space-time coded modulation scheme using iterative decoding (BI-STCM-ID) combined with a new multidimensional mapping scheme invoking sphere-packing (SP) modulation, which we refer to as the space-time block-coded sphere ...
Tee, Ronald Y S   +3 more
core   +1 more source

OPTIMIZED SPACE-VECTOR-MODULATED QUASI Z-SOURCE NPC INVERTER FOR SOLAR PV APPLICATION [PDF]

open access: yesCarpathian Journal of Electrical Engineering, 2019
An optimized space vector modulation technique for controlling a quasi Zsource NPC inverter for solar photovoltaic application is presented in this paper.
Francis Boafo EFFAH   +2 more
doaj  

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

A Step by Step Introduction to Space Vector and Space Vector Modulation

open access: yes, 2018
Space vector modulation concept is used at various places in drives field.The concept of rotating field in the machine can be explained with the help of space vector.
Gondhalekar, Mr.G.C., Fadnis, Mrs,A.Y.
core  

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

open access: yesAdvanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang   +11 more
wiley   +1 more source

Transmitter Preprocessing Aided Spatial Modulation for Multiple-Input Multiple-Output Systems

open access: yes, 2011
This paper proposes and studies a transmitter preprocessing aided spatial modulation (PSM) scheme, which conveys information jointly by a conventional amplitude-phase modulation (APM) and a preprocessing aided space shift keying (pre-SSK) modulation.
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

Modulation of Current Source Inverter [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2011
Direct torque control with Current Source Inverter (CSI) instead of voltage source inverter is so appropriate because of determining the torque of induction motor with machine current and air gap flux. In addition, Space-Vector Modulation (SVM) is a more
Golam Reza Arab Markadeh   +2 more
doaj  

Iteratively Decoded Variable Length Space-Time Coded Modulation

open access: yes, 2005
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is proposed.
Ng, S.X., Hanzo, L.
core   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen   +7 more
wiley   +1 more source

A MODIFIED VIRTUAL SPACE VECTOR MODULATION TECHNIQUE FOR Z-SOURCE NPC INVERTERS [PDF]

open access: yesCarpathian Journal of Electrical Engineering, 2018
A modified virtual space vector modulation approach for the control of a Z-source neutral point clamped inverter is presented in this paper. This approach works perfectly for the traditional neutral point clamped inverter.
Francis EFFAH   +4 more
doaj  

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