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Kinetic energy density study of some representative semilocal kinetic energy functionals [PDF]

open access: greenThe Journal of Chemical Physics, 2007
There is a number of explicit kinetic energy density functionals for noninteracting electron systems that are obtained in terms of the electron density and its derivatives. These semilocal functionals have been widely used in the literature. In this work, we present a comparative study of the kinetic energy density of these semilocal functionals ...
David García-Aldea, J. E. Alvarellos
openalex   +5 more sources

Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology [PDF]

open access: yesSensors, 2022
Fragment kinetic energy is an important parameter to characterize the damage power of fragments. In this study, an acoustic emission technology-based method to evaluate fragment kinetic energy is proposed.
Fei Shang, Liangquan Wang
doaj   +2 more sources

Kinetic Architecture; Renewable Energy

open access: yesARCHive-SR, 2018
Today, architecture is one of the finest products of the creative human mind that God has given us. Its existence is a necessity which makes the aspects of human life and way of thinking balanced between endless desires and needs.
Azza Gamal Haggag
doaj   +2 more sources

Locomotive kinetic energy management [PDF]

open access: yesTransport Problems, 2011
The paper addresses some basic theoretical and engineering problems of electrodynamic braking, presenting methods of regenerative braking returning energy to contact network or the energy storage batteries.
Lionginas LIUDVINAVIČIUS   +1 more
doaj   +1 more source

A new dynamic subgrid-scale model using artificial neural network for compressible flow

open access: yesTheoretical and Applied Mechanics Letters, 2022
The subgrid-scale (SGS) kinetic energy has been used to predict the SGS stress in compressible flow and it was resolved through the SGS kinetic energy transport equation in past studies.
Han Qi   +3 more
doaj   +1 more source

Parametric, Semiparametric, and Semi-Nonparametric Estimates of the Kinetic Energy of Ordered Air Motion and Wind Outliers in the Atmospheric Boundary Layer from Minisodar Measurements

open access: yesApplied Sciences, 2023
In the present work, we analyze the spatiotemporal dynamics of the kinetic wind energy with and without allowance for the kinetic energy of outliers. We first separated the contributions of the mean kinetic energy and the kinetic energy of the outliers ...
Valerii Anan’evich Simakhin   +3 more
doaj   +1 more source

Energy Dissipation in Magnetic Islands Formed during Magnetic Reconnection

open access: yesThe Astrophysical Journal, 2023
Magnetic reconnection converts magnetic energy into particle kinetic energy, and satellite observations have shown that 20%–50% of magnetic energy is channeled into electron kinetic energy.
Quanming Lu   +4 more
doaj   +1 more source

Can the Hartree–Fock kinetic energy exceed the exact kinetic energy?

open access: yesThe Journal of Chemical Physics, 2022
The Hartree–Fock (HF) approximation has been an important tool for quantum-chemical calculations since its earliest appearance in the late 1920s and remains the starting point of most single-reference methods in use today. Intuition suggests that the HF kinetic energy should not exceed the exact kinetic energy; but no proof of this conjecture exists ...
S. Crisostomo, M. Levy, K. Burke
openaire   +3 more sources

A comparative study on the analysis of hemodynamics in the athlete’s heart

open access: yesScientific Reports, 2022
The pathophysiological mechanisms underlying the development of the athlete’s heart are still poorly understood. To characterize the intracavitary blood flows in the right ventricle (RV) and right-ventricular outflow tract (RVOT) in 2 healthy probands ...
Utku Gülan   +8 more
doaj   +1 more source

Is negative kinetic energy metastable? [PDF]

open access: yesPhysical Review D, 2021
40 pages, 6 figures; published ...
Gross, Christian   +3 more
openaire   +3 more sources

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