Results 1 to 10 of about 151,349 (311)

An Experimental Study of Shear Resistance for Multisize Polypropylene Fiber Concrete Beams

open access: yesInternational Journal of Concrete Structures and Materials, 2021
To study the influence of polypropylene fibers with different thicknesses on concrete beams, inclined section shear tests of polypropylene fiber concrete beams were carried out.
Xin Yang   +3 more
doaj   +1 more source

α-MeanShift++: Improving MeanShift++ for Image Segmentation

open access: yesIEEE Access, 2021
MeanShift is one of the popular clustering algorithms and can be used to partition a digital image into semantically meaningful regions in an unsupervised manner.
Hanhoon Park
doaj   +1 more source

Quantum computing of semiclassical formulas [PDF]

open access: yesPhysical Review E, 2008
We show that semiclassical formulas such as the Gutzwiller trace formula can be implemented on a quantum computer more efficiently than on a classical device. We give explicit quantum algorithms which yield quantum observables from classical trajectories, and which alternatively test the semiclassical approximation by computing classical actions from ...
Georgeot, Bertrand, Giraud, Olivier
openaire   +4 more sources

Efficient computation of the Zassenhaus formula [PDF]

open access: yesComputer Physics Communications, 2012
A new recursive procedure to compute the Zassenhaus formula up to high order is presented, providing each exponent in the factorization directly as a linear combination of independent commutators and thus containing the minimum number of terms. The recursion can be easily implemented in a symbolic algebra package and requires much less computational ...
Fernando Casas   +2 more
openaire   +3 more sources

Optimizing 3D Convolution Kernels on Stereo Matching for Resource Efficient Computations

open access: yesSensors, 2021
Despite recent stereo matching algorithms achieving significant results on public benchmarks, the problem of requiring heavy computation remains unsolved. Most works focus on designing an architecture to reduce the computational complexity, while we take
Jianqiang Xiao   +2 more
doaj   +1 more source

Optimal Difference Formulas in the Sobolev Space

open access: yesСовременная математика: Фундаментальные направления, 2022
Optimization of computational methods in functional spaces is one of the main problems of computational mathematics. In this paper, algebraic and functional assertions for the problem of difference formulas are discussed.
Kh. M. Shadimetov, R. N. Mirzakabilov
doaj   +1 more source

A Certain Mean Square Value Involving Dirichlet L-Functions

open access: yesMathematics, 2020
The main purpose of this article is using the elementary methods, the properties of Dirichlet L-functions to study the computational problem of a certain mean square value involving Dirichlet L-functions at positive integer points, and give some exact ...
Wenpeng Zhang, Di Han
doaj   +1 more source

Carrier Dynamics in High-Efficiency Blue GaN Light-Emitting Diodes Under Different Bias Currents and Temperatures

open access: yesIEEE Photonics Journal, 2012
Distinct temperature-dependent dynamic behaviors of GaN-based blue light-emitting diodes (LEDs) are observed by use of the very-fast electrical-optical pump-probe technique.
Kai-Lun Chi   +7 more
doaj   +1 more source

The hybrid power mean of the generalized Gauss sums

open access: yesAdvances in Difference Equations, 2017
The main purpose of this paper is using the analytic method and the orthogonal properties of the character sums to study the computational problem of one kind hybrid power mean of the generalized Gauss sums mod p $\operatorname{mod}\ p$ , an odd prime ...
Li Chen, Wenpeng Zhang
doaj   +1 more source

Probing Reactivity with External Forces: The Case of Nitroacetamides in Water

open access: yesMolecules, 2023
Many computational methods have been applied to interpret and predict changes in reactivity by slight modifications of a given molecular scaffold. We describe a novel and simple method based on approximate density-functional theory of valence electrons ...
Giovanni La Penna, Fabrizio Machetti
doaj   +1 more source

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