Results 81 to 90 of about 38,051,230 (246)
Arthritis Care &Research, EarlyView.Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli +13 more
wiley +1 more source
Optical fibre digital pulse-position-modulation assuming a Gaussian received pulse shape [PDF]
The abundance in bandwidth available in the best monomode fibres may be exchanged for improved receiver sensitivity by employing digital PPM. The paper presents a performance and optimisation analysis for a digital PPM coding scheme operating over a ...
Calvert, N.M. +4 more
core +3 more sources
Circular Polarization Modulation for Digital Communication Systems [PDF]
, 2012 Conventional approaches of digital modulation schemes make use of amplitude, frequency and/or phase as modulation characteristic to transmit data.
Muhammad Amin +11 more
core +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
Fabrication Routes for Ionic Conducting Fiber Strain Sensors
Advanced Engineering Materials, EarlyView.Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw +3 more
wiley +1 more source
Digital pulse width modulation techniques for power converters
, 2010 Electronic Thesis or DissertationRecently, digital controls are becoming dominant in almost every power electronic application because of the advantage when compared to analog control.
Arunachalam, Thanukamalam
core +1 more source
A Novel Four-Dimensional Modulation Format Based on Subset Selection
IEEE Access, 2019 Coherent optical transmission systems have a four-dimensional (4-D) signal space (two quadratures in two polarizations), which can be used to create 4-D modulation formats that have better sensitivity than traditional two-dimensional modulation signal ...
Guijun Hu, Zhaoxi Li
doaj +1 more source
Improving Broadcast Channel Rate Using Hierarchical Modulation [PDF]
, 2012 We investigate the design of a broadcast system where the aim is to maximise the throughput. This task is usually challenging due to the channel variability.
Méric, Hugo +4 more
core
Electrodeposition in Structural Lattices of Variable Architectures
Advanced Engineering Materials, EarlyView.Electrodeposition enables geometry‐sensitive, autonomous void filling while simultaneously tuning chemical and mechanical properties. The development of approaches that can autonomously fill and heal material voids and yield composites with tailorable properties is increasingly relevant in engineering.
Yeong‐Man Kwon +3 more
wiley +1 more source
Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibres [PDF]
, 2009 The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s.
Lee, S.C. Jeffrey; id_orcid +33 more
core +1 more source