Results 91 to 100 of about 124,365 (283)

Demonstration of Quantum Image Edge Extration Enhancement Through Improved Sobel Operator

open access: yesIEEE Access, 2020
Quantum image processing is a system where both quantum computing and image processings are key. Now it is required to investigate how to apply image processing concepts such as image edge detection and improved Sobel operator, to quantum image ...
Yulin Ma, Hongyang Ma, Pengcheng Chu
doaj   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo   +11 more
wiley   +1 more source

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

Unified study on characteristic spectrum representation of signals and spectral decomposition for stationary random signals

open access: yesTongxin xuebao, 2018
The unified relationship between the signal characteristic spectrum representation and the spectral decomposition for the stationary random signal was deeply studied.
Hongyu WANG, Tianshuang QIU
doaj   +2 more sources

CONTINUITY OF SUPERPOSITION OPERATORS ON DOUBLE SEQUENCES SPACES OF MADDOX C_{r0} (p)

open access: yesRomanian Journal of Mathematics and Computer Science, 2015
Sagır and Gungor defined the superposition operator P_g where g:N^2 × R → R by P_g ((x_{ks})) = g (k, s, x_{ks}) for all real double sequences (x_{ks}). Chew &Lee and Petranuarat & Kemprasit characterized P_g : c_0 → l_1 and _Pg : c_0 → l_q where 1 ≤ q
BIRSEN SAGIR, NIHAN GUNGOR
doaj  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Modelling of superposition in 2D linear acoustic wave problems using Fourier neural operator networks

open access: yesActa Acustica
A method of solving the 2D acoustic wave equation using Fourier Neural Operator (FNO) networks is presented. Various scenarios including wave superposition are considered, including the modelling of multiple simultaneous sound sources, reflections from ...
Middleton Michael   +2 more
doaj   +1 more source

Fractional-Order PID Motion Control for AUV Using Cloud-Model-Based Quantum Genetic Algorithm

open access: yesIEEE Access, 2019
Aiming to improve the performance of motion for autonomous underwater vehicle (AUV), a fractional-order PID strategy is proposed. It is a more generalized form for the conventional integer-order PID controller, keeping its simplicity and utilizing the ...
Junhe Wan   +4 more
doaj   +1 more source

Potentiality and Contradiction in Quantum Mechanics [PDF]

open access: yes, 2014
Following J.-Y.B\'eziau in his pioneer work on non-standard interpretations of the traditional square of opposition, we have applied the abstract structure of the square to study the relation of opposition between states in superposition in orthodox ...
Arenhart, Jonas R. B., Krause, Décio
core   +2 more sources

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

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