Results 81 to 90 of about 74,222 (311)
Design of High-Precision Driving Control System for Charge Management
SensorsDue to the interaction of accumulated charges on the surface of a test mass with the surrounding electric and magnetic fields, the performance of inertial sensors is affected, necessitating charge management for the test mass.
Yang Wang +4 more
doaj +1 more source
Pulse position modulation coding schemes for optical intersatellite links
, 2007 The rapid and significant development of communications links between satellites has made it possible to use various applications such as relay voice, video, multimedia, etc.
Ghosna, Fadi, Sibley, Martin J.N.
core
Advanced Functional Materials, EarlyView.Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv +20 more
wiley +1 more source
Multiphase space vector pulse width modulation
IEEE Transactions on Energy Conversion, 2002 Pole-phase modulation adjusts the pole-phase ratio of an induction machine and requires a multileg, multiphase inverter. This paper analyzes an n-leg, n-phase inverter, and presents techniques for n-phase space vector pulse width modulation (SVPWM). In particular, nine-phase SVPWM is developed and implemented on a nine winding induction machine.
J. W. Kelly +2 more
openaire +2 more sources
Digital pulse interval and width modulation
, 1996 This article investigates the implementation of a new digital pulse-time modulation (PTM) technique based on a digital pulse internal and width modulation (DPIWM) scheme. Original expressions are presented for code characterization, channel capacity, and
Ghassemlooy, Zabih +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk +7 more
wiley +1 more source
Direct power control in pulse-width modulation rectifier based on virtual flux estimation
Advances in Mechanical Engineering, 2017 Pulse-width modulation rectifier plays an important role in the field of electric energy conversion. It has many advantages such as the grid side current sinusoidal, bidirectional energy flow, and unit power factor.
Bo Fan +4 more
doaj +1 more source
MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI
Advanced Functional Materials, EarlyView.Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko +10 more
wiley +1 more source
Step-Pulse Modulation of Gain-Switched Semiconductor Pulsed Laser
Applied Sciences, 2019 To improve the peak power and extinction ratio and produce ultra-short pulses, a novel approach is presented in this paper offers a highly effective modulated method for a gain-switched semiconductor laser by using step-pulse signal modulation.
Bin Li +4 more
doaj +1 more source
, 2011 Problem statement - Similar to other baseband modulation schemes, the performance of the Dual Header Pulse Interval Modulation (DH-PIM) is adversely affected by Artificial Light Interferences (ALI) in an indoor Optical Wireless Communications (OWC ...
Ghassemlooy, Zabih +2 more
core +1 more source