Results 1 to 10 of about 6,367,308 (175)

Description of energy levels and decay properties in 158Gd nucleus [PDF]

open access: yesЯдерна фізика та енергетика, 2023
In this paper, IBM-1 and IBM-2 with a SU(3) limit are used to describe the 158Gd isotope. The calculations of energy levels in the ground state, beta-, and gamma-bands are made up, which account for 15 energy levels.
Fahmi Sh. Radhi   +6 more
doaj   +1 more source

Variational Methods for Atoms and the Virial Theorem

open access: yesAtoms, 2022
In the case of the one-electron Dirac equation with a point nucleus, the virial theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly −1, a ratio that can be an independent test of the accuracy of a computed solution ...
Charlotte Froese Fischer   +1 more
doaj   +1 more source

Investigation to the influence of additional magnets positions on four-magnet bi-stable piezoelectric energy harvester [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
Although the study of oscillatory motion has a long history, going back four centuries, it is still an active subject of scientific research. In this review paper prospective research directions in the field of mechanical vibrations were pointed out ...
Xinxin Li   +6 more
doaj   +1 more source

Resonant Combustion Start Considering Potential Energy of Free-Piston Engine Generator

open access: yesEnergies, 2020
Free-piston engine generators without a crank mechanism are expected to be used in series hybrid vehicles because of their lower losses. The series hybrid system requires a low starting thrust because the engine frequently starts depending on the battery
Mitsuhide Sato   +3 more
doaj   +1 more source

Investigating the Spatio-Temporal Distribution of Gravity Wave Potential Energy over the Equatorial Region Using the ERA5 Reanalysis Data

open access: yesAtmosphere, 2021
Atmospheric gravity waves play a crucial role in affecting atmospheric circulation, energy transportation, thermal structure, and chemical composition. Using ERA5 temperature data, the present study investigates the tropospheric to the lower mesospheric ...
Shih-Sian Yang, Chen-Jeih Pan, Uma Das
doaj   +1 more source

Potential energy catastrophe failure mechanism of “filling body-coal pillar” composite structure

open access: yesMeikuang Anquan, 2022
In order to study the stability of “filling body-coal pillar” composite structure in roadway backfilling mining, the bearing characteristics of composite structure are analyzed.
WANG Shuokang   +2 more
doaj   +1 more source

Analysis of Kinetic Energy Recovery Systems in Electric Vehicles

open access: yesVehicles, 2023
The recovery of kinetic energy (KER) in electric vehicles was analyzed and characterized. Two main systems were studied: the use of regenerative brakes, and the conversion of potential energy.
Carlos Armenta-Déu, Hernán Cortés
doaj   +1 more source

Robust whole-hand spatial manipulation via energy maps with caging, rolling, and sliding

open access: yesFrontiers in Robotics and AI, 2023
Humans regularly use all inner surfaces of the hand during manipulation, whereas traditional formulations for robots tend to use only the tips of their fingers, limiting overall dexterity.
Walter G. Bircher   +2 more
doaj   +1 more source

Assessment of Triton Potential Energy [PDF]

open access: yes, 1996
An assessment is made of the dominant features contributing to the triton potential energy, with the objective of understanding qualitatively their origins and sensitivities.
Friar, J. L., Payne, G. L.
core   +2 more sources

Optically induced potential energy landscapes [PDF]

open access: yes, 2007
Multi-dimensional potential energy surfaces are associated with optical binding. A detailed exploration of the available degrees of geometric freedom reveals unexpected turning points, producing intricate patterns of local force and torque.
Andrews, David   +2 more
core   +1 more source

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