Results 91 to 100 of about 2,774 (297)

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

Advanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou, Tingjun Zhong, Sijie Liu, Pouya Nosratkhah, Ke Xu, Yuzhen Zhao, Kristiaan Neyts   +6 more
wiley   +1 more source

Filtering in fractional Fourier domains and their relation to chirp transforms [PDF]

, 1994
Date of Conference: 12-14 April 1994Conference name: Proceedings of MELECON '94 - Mediterranean Electrotechnical ConferenceFractional Fourier transforms, which are related to chirp and wavelet transforms, lead to the notion of fractional Fourier domains.
Özaktaş, Haldun M., Onural, Levent, Mendlovic, D., Barshan, Billur   +3 more
core   +1 more source

PINNs FRACCIONARIAS: NUEVOS HORIZONTES PARA LA MEMORIA PROLONGADA EN MODELOS CONTINUOS

Avances en Ciencias e Ingeniería
The fundamentals and motivations of Fractional Calculus for describing dynamics with pro- longed memory in both temporal and spatial domains are presented.
Yuniel Martínez, Luis Rojas, Alvaro Peña, Matías Valenzuela, Beatriz Hernández, José García   +5 more
doaj   +1 more source

Space-Time Fractional Reaction-Diffusion Equations Associated with a Generalized Riemann–Liouville Fractional Derivative

Axioms, 2014
This paper deals with the investigation of the computational solutions of a unified fractional reaction-diffusion equation, which is obtained from the standard diffusion equation by replacing the time derivative of first order by the generalized Riemann ...
Ram K. Saxena, Arak M. Mathai, Hans J. Haubold   +2 more
doaj   +1 more source

Performance Enhancement of Tin Chloride‐Incorporated Ferroelectric Polymer‐Based Artificial Synapse for Hardware Neural Networks

Advanced Functional Materials, EarlyView.
This paper proposes a highly efficient ferroelectric artificial synapse device based on an oxide semiconductor and SnCl2‐inserted P(VDF‐TrFE) gate dielectric layer. This FeFET significantly improved the synaptic performance due to the ion‐dipole interaction.
Hyun‐Soo Kim, Hyunkyu Lee, Yeonho Choi, Won Young Jang, Hyungmin Kim, Krishna Moorthy Ponnusamy, Hongseung Lee, Jaewook Yoo, Ji Ye Lee, S. Chandramohan, Seongin Hong, Hagyoul Bae, Hyeon‐Sik Jang, Sang Yeol Lee, Keun Heo   +14 more
wiley   +1 more source

Convolution and filtering in fractional fourier domains [PDF]

, 1994
Fractional Fourier transforms, which are related to chirp and wavelet transforms, lead to the notion of fractional Fourier domains. The concept of filtering of signals in fractional domains is developed, revealing that under certain conditions one can ...
Özaktaş, Haldun M., Mendlovic, D., Barshan, B.   +2 more
core   +1 more source

On the solutions of fractional reaction-diffusion equations

Le Matematiche, 2013
In this paper, we obtain the solution of a fractional reaction-diffusion equation associated with the generalized Riemann-Liouville fractional derivative as the time derivative and Riesz-Feller fractional derivative as the space-derivative.
Jagdev Singh, Devendra Kumar, Sushila Rathore   +2 more
doaj  

Number-Theoretic Transforms: Theory and Applications in Modern Cryptography

IEEE Access
Number-theoretic transforms (NTT) provide exact arithmetic and efficient convolution over finite algebraic structures, and have emerged as a foundational computational primitive in modern cryptography.
Juliano B. Lima, Jose R. De Oliveira Neto   +1 more
doaj   +1 more source

Mimicking Silent Synapse Recruitment: A SiOx/Cu‐Pancake Memristive Device For Analog Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht, Ole Gronenberg, Sahitya Yarragolla, Tobias Gergs, Richard Marquardt, Victor Witte, Jürgen Carstensen, George Popkirov, Jan Trieschmann, Lorenz Kienle, Hermann Kohlstedt   +10 more
wiley   +1 more source

Wigner distribution moments in fractional Fourier transform systems [PDF]

, 2002
It is shown how all global Wigner distribution moments of arbitrary order in the output plane of a (generally anamorphic) two-dimensional fractional Fourier transform system can be expressed in terms of the moments in the input plane.
Bastiaans, M.J., Alieva, T.
core   +1 more source