Results 71 to 80 of about 195,273 (332)
Optimal Hybrid Pulse Width Modulation for Three-Phase Inverters in Electric Propulsion Ships
MachinesGlobal interest in environmentally friendly ships has surged as a result of greenhouse gas reduction policies and the demand for carbon neutrality. Despite growing demand for electric propulsion systems, there is a lack of research and development on ...
Chan Roh +5 more
doaj +1 more source
Optical Multilevel Pulse Width Modulation for Analog Mobile Fronthaul
Photonics, 2018 The evolution of radio access networks is towards a centralized architecture (C-RAN), with massive antenna deployments and large radio-frequency bandwidths.
Lorenzo Combi +4 more
doaj +1 more source
Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched FWM in long-period Bragg silicon waveguides [PDF]
, 2014 We present a theoretical analysis supported by comprehensive numerical simulations of quasi phase-matched four-wave mixing (FWM) of ultrashort optical pulses that propagate in weakly width-modulated silicon photonic nanowire gratings.
Driscoll, Jeffrey B. +5 more
core +2 more sources
Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
wiley +1 more source
Design of Pulse Width Modulation of Intelligent Control System of Vibration Stress Relief
Gong-kuang zidonghua, 2012 The paper analyzed problems existed in realizing pulse width modulation of intelligent control system of vibration stress relief which includes short timing time of the single-chip microcomputer, method of initial value writing of the timer and low ...
WANG An-ming
doaj
From Low Symmetry to High Dissymmetry: Chiral Plasmonic Films of Binary and Nanobipyramid Assemblies
Advanced Functional Materials, EarlyView.This work develops highly dissymmetric chiral plasmonic thin films by helically assembling gold nano bipyramids within a liquid‐crystal template. Engineering of the chiroptical response is achieved by varying particle size and geometry, as well as preparing binary assemblies.
Martyna Wasiluk +10 more
wiley +1 more source
Laser beam modulation by an acousto optic mode locker [PDF]
, 2006 Nazariahmatdaud2006the characterization of beam modulation by acousto-optic mode locker is reported. Hene laser was employed as a source. Acousto-optic mode locker (aoml) was used to convert the continuous beam to become pulsed.
Bidin, Noriah +3 more
core
The Radiation Structure of PSR B2016$+$28 Observed with FAST
, 2019 With the largest dish Five-hundred-meter Aperture Spherical radio Telescope (FAST), both the mean and single pulses of PSR B2016$+$28, especially including the single-pulse structure, are investigated in detail in this study.
Collaboration, FAST +10 more
core +1 more source
Advanced Functional Materials, EarlyView.Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du +11 more
wiley +1 more source
Scientific ReportsThis paper provides a new, less complex multilevel inverter topology that can be used for industrial loads and renewable energy sources. The arrangement consists of eight switches to produce an 11-level output voltage with two uneven input sources ...
Shaik. Shakeera, K. Rachananjali
doaj +1 more source