Results 81 to 90 of about 24,322,276 (145)

Co0.05‐Bi2S3/CF Photothermal Layer Integrated With Freeze‐Cast Alumina Vertical Channels for Efficient Interfacial Solar Desalination

open access: yesElectron, EarlyView.
A bicomponent solar‐driven interfacial evaporator made of Co0.05‐Bi2S3/carbon foam (CF) (photothermal material) on a porous alumina substrate prepared by freeze‐casting, having vertically aligned microchannels and low thermal conductivity (k = (1.14 ± 0.06) W m−1 K−1), was explored.
Muzammil Hussain   +10 more
wiley   +1 more source

Programmable solar‐blind ultraviolet sensors enabling integrated single‐pixel sensing and neuromorphic processing

open access: yesInfoMat, EarlyView.
A Schottky photodiode based on (Al0.14Ga0.86)2O3 was developed, in which the sensing and processing functions were temporally decoupled through bias voltage modulation. By integrating single‐pixel imaging with a reservoir computing architecture, a comprehensive intelligent vision system was constructed.
Hongbin Wang   +10 more
wiley   +1 more source

Input and/or output pruning of composite length FFTs using a DIF-DIT transform decomposition [PDF]

open access: yes, 2009
Pruned fast Fourier transforms (FFTs) can be efficient alternatives to compute DFTs when the input vector is zero padded and/or several output elements are not required. In this correspondence, a new method to prune composite length FFTs is proposed. The
MODESTO GUADALUPE MEDINA MELENDREZ   +2 more
core  

Adaptive Spectral Analysis of Umbilical Venous Doppler Maternal–Fetal Power Ratio for Preeclampsia Risk Assessment

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives To develop and evaluate adaptive spectral analysis for deriving the maternal–fetal power ratio (MFPR) from umbilical venous Doppler recordings and to assess MFPR for subsequent preeclampsia (PEC) risk discrimination across recording durations.
Jingyi Zhu   +7 more
wiley   +1 more source

Imperfect Digital Fibre Optic Link Based Cooperative Distributed Antennas with Fractional Frequency Reuse in Multicell Multiuser Networks

open access: yes, 2011
The achievable throughput of the entire cellular area is investigated, when employing fractional frequency reuse techniques in conjunction with realistically modelled imperfect optical fibre aided distributed antenna systems (DAS) operating in a ...
Xu, Xinyi   +3 more
core   +1 more source

Photonic Neuromorphic Processing With Coupled Spiking Silicon Microrings

open access: yesLaser &Photonics Reviews, EarlyView.
A neuromorphic photonic core composed of three self‐pulsing silicon microring resonators is experimentally demonstrated for analogue and digital processing. Richer computational capabilities emerge under injection conditions where the dynamics are nonlinear and coupled, yet remain reproducible, opening novel strategies for future on‐chip training and ...
Giovanni Donati   +3 more
wiley   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

open access: yesResponsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang   +11 more
wiley   +1 more source

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

open access: yesSmall, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira   +9 more
wiley   +1 more source

Metal‐Iodide‐Mediated CVT Growth of Form V Red Phosphorus Wires

open access: yesSmall, EarlyView.
AgI‐mediated chemical vapor transport enables on‐substrate growth of high‐aspect‐ratio red‐phosphorus wire‐like nanostructures, including multiple individual wires indexed to single‐crystalline Form V by transmission electron microscopy/selected area electron diffraction (TEM/SAED).
Yi‐Ting Wu   +7 more
wiley   +1 more source

Polymorphic In Vitro Assembly of a Bacterial Microcompartment Shell Protein

open access: yesSmall, EarlyView.
A single protein self‐assembles in vitro into a diverse array of polymorphic structures, including sheets, nanotubes, and nanospheres. Morphology can be controlled by systematically tuning assembly conditions that modulate intersubunit interactions. These results demonstrate how programmable molecular interactions guide and enable the controllable self‐
Timothy K. Chiang   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy