Results 151 to 160 of about 75,899 (299)
On instantaneous frequency of multicomponent signals [PDF]
, 1997 Instantaneous frequency (IF) of analytic signals has been extensively studied in the literature. The general perception is that it is meaningful only for narrowband or monocomponent signals.
Kumaresan, Ramdas, Rao, Ashwin
core
Advanced Materials, EarlyView.The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley +1 more source
Adaptive spectrogram vs. adaptive pseudo-Wigner-Ville distribution for instantaneous frequency estimation [PDF]
, 2003 An approach that automatically adapts the window length to the changes in instantaneous frequency (IF) and tracks it better than a fixed window approach is used to estimate the IF using the peak of the spectrogram. An adaptive window-based time-frequency
Sekhar, Chandra S, Sreenivas, TV
core
Additive Manufacturing of Ordered Polymer Nanostructures
Advanced Materials, EarlyView.A new 3D printing strategy, Polymerization‐Induced Arrangement of Nanostructures with Order‐tunability (PIANO), enables the formation of ordered nanostructures in polymer materials by enhancing chain mobility during photopolymerization, overcoming the kinetic arrest that leads to disordered morphologies in the conventional Polymerization‐Induced ...
Di Wu +6 more
wiley +1 more source
Advanced Materials, EarlyView.Magnetic particles are organized into layered architectures by combining shear flow and magnetic fields, with the resulting structures governed by appropriate Mason numbers. The programmed assemblies provide spatial guidance for cell placement, linking field‐controlled self‐assembly, flow‐induced structuring and biological organization.
Guillermo Camacho +5 more
wiley +1 more source
Advanced Materials, EarlyView.This work develops bias‐triggered conductivity relaxation as a novel technique to study oxygen reactions in mixed ionic‐electronic conducting thin films by integrating electrochemical titration and electrical conductivity relaxation to achieve synchronous multi‐parameter characterization, providing simultaneous electronic, ionic, and extraordinarily ...
Alexander Stangl +4 more
wiley +1 more source
Motion Capture Data Analysis in the Instantaneous Frequency-Domain Using Hilbert-Huang Transform. [PDF]
Sensors (Basel), 2020 Dong R, Cai D, Ikuno S.
europepmc +1 more source
Advanced Materials, EarlyView.The performance of Cu‐based photocathodes in photoelectrochemical CO2 reduction is not governed by catalytic sites alone, but by the dynamic journey of photogenerated carriers. This review decodes how carrier generation, recombination, transport, accumulation, extraction, and electrolyte coupling shape catalytic activity, selectivity, and stability ...
Yi‐Cheng Wang +5 more
wiley +1 more source
Within-cycle instantaneous frequency profiles report oscillatory waveform dynamics.
J Neurophysiol, 2021 Quinn AJ +8 more
europepmc +1 more source