Results 191 to 200 of about 1,222,454 (235)

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

open access: yesResponsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen   +8 more
wiley   +1 more source

Fabrication of Janus Supraparticles by Induced Phase Separation by Gravity. [PDF]

open access: yesACS Nano
Ramachandran S   +4 more
europepmc   +1 more source

Shaping perovskite materials into micro/nanostructures for photonics and optoelectronic applications.

open access: yesChem Soc Rev
Mastria R   +7 more
europepmc   +1 more source

Perfect binary arrays and difference sets [PDF]

open access: yesDiscrete Mathematics, 1994
A perfect binary array is an r-dimensional array with elements ± 1 such that all out-of-phase periodic autocorrelation coefficients are zero. Such an array is equivalent to a Menon difference set in an abelian group.
Jonathan Jedwab   +2 more
exaly   +6 more sources
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On the perfect binary arrays

Journal of Electronics, 1990
The close relationship between the perfect binary arrays (PBA) and the higher dimensional Hadamard matrices is initially discovered. Some very interesting results about the Fourier transform spectrum of PBA are shown and a few open problems are also pointed out in this paper.
Yang Yixian
exaly   +2 more sources

Superimposed Perfect Binary Array-Aided Channel Estimation for OTFS Systems

open access: yesEntropy, 2023
Orthogonal time-frequency space (OTFS) modulation outperforms orthogonal frequency-division multiplexing in high-mobility scenarios through better channel estimation. Current superimposed pilot (SP)-based channel estimation improves the spectral efficiency (SE) when compared to that of the traditional embedded pilot (EP) method. However, it requires an
Zuping Tang, Hengyou Kong, Ziyu Wu
exaly   +4 more sources

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