Results 41 to 50 of about 299,236 (294)

New modulation scheme for bidirectional qZS modular multi-level converters

open access: yesThe Journal of Engineering, 2019
This study proposes a dedicated modulation scheme for a bidirectional quasi-Z-source (qZS) modular multi-level converter. The operation principle and a suitable pulse-width modulation method are proposed.
Fatma A. Khera   +2 more
doaj   +1 more source

Generalized Space-and-Frequency Index Modulation [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2016
Unlike in conventional modulation where information bits are conveyed only through symbols from modulation alphabets defined in the complex plane (e.g., quadrature amplitude modulation (QAM), phase shift keying (PSK)), in index modulation (IM), additional information bits are conveyed through indices of certain transmit entities that get involved in ...
Datta, Tanumay   +2 more
openaire   +3 more sources

Fault tolerant single-phase capacitor start capacitor run induction motor powered with cascaded multilevel quasi impedance source inverter

open access: yesThe Journal of Engineering, 2019
In this study, the performance of fault tolerant single-phase capacitor start capacitor run induction motor powered using seven-level quasi-impedance source inverter (qZSI) is analysed.
Syed Rahman   +6 more
doaj   +1 more source

Direct characterization of the spatial effective refractive index profile in Bragg gratings

open access: yes, 2005
We propose a pulse response method to directly characterize the phase of the spatial index modulation, including the dc refractive index distribution (distributed phase shift), discrete phase, and chirp of fiber Bragg gratings (FBGs).
David J. Richardson   +13 more
core   +1 more source

Tone-Index Multisine Modulation for SWIPT [PDF]

open access: yesIEEE Signal Processing Letters, 2019
We propose a new simultaneous wireless information and power transfer (SWIPT) technique that embeds information bits in the tone-index of multisine waveforms. By varying the number of subcarriers of the transmitted bandwidth-constrained multisine signal, the proposed scheme enables efficient radio-frequency energy harvesting and low-complexity ...
Krikidis, Ioannis   +3 more
openaire   +3 more sources

Strong modulation instability in a silicon–organic hybrid slot waveguide

open access: yes, 2015
In this paper, we investigate the strong modulation instability (MI) at telecommunication band in a silicon-organic hybrid slot waveguide. The organic material of polymer poly (bis para-toluene sulfonate) of 2, 4-hexadiyne 1, 6 diol (PTS), which has high
Kang, Z   +17 more
core   +1 more source

Total Harmonic Distortion Measurement of 13-level FCML Inverter for SPWM and THIPWM Method [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
One of the main problems for flying capacitor multilevel (FCML) inverter is the higher value of total harmonic distortion (THD) with number of capacitors and switching devices.
BHADRA Ananta Bijoy
doaj  

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Performance Analysis of Resource Allocation in THz-Based Subcarrier Index Modulation Systems for Mobile Users

open access: yesIEEE Access, 2021
The recent demand for connections to a huge number of users with very high data rates have motivated research communities to investigate communications into the higher frequency bands, such as millimeter waves and TeraHertz (THz) bands.
Mohannad Alzard   +3 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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