Buscar
Mostrando ítems 31-40 de 30108
Effect of Added Mass Location on Manual Wheelchair Propulsion Forces
(2020-01-01)
This study investigated the influence of mass distribution on the handrim forces during manual propulsion in four different mobility tasks: Straightforward motion at self-selected speed; straightforward sprint; zero radius ...
A Low-Mass Planet with a Possible Sub-Stellar-Mass Host in Microlensing Event MOA-2007-BLG-192
(2008)
We report the detection of an extrasolar planet of mass ratio q ~ 2 × 10−4 in microlensing event MOA-2007-BLG-192. The best-fit microlensing model shows both the microlensing parallax and finite source effects, and these ...
Effect of Physical Training on Body Composition in Brazilian Military
(2022-02-01)
The military are selected on the basis of physical standards and are regularly involved in strong physical activities, also related to particular sports training. The aims of the study were to analyze the effect of a 7-month ...
Heavy quark mass effects in parton-to-kaon hadronization probabilities
(Elsevier Science, 2019-03)
We examine the relevance of the heavy quarks masses in the perturbative QCD description of hard interactions where charged kaons are produced in the final state. We extract a set of parton-to-kaon hadronization probabilities ...
Comment on Energy Spectrum of a Dirac Particle with Position-Dependent Mass Under the Influence of the Aharonov-Casher Effect
(Springer, 2020-11-11)
It is shown that the paper Energy spectrum of a Dirac particle with position-dependent mass under the influence of the Aharonov-Casher effect, by Oliveira et al. (Braz. J. Phys. 49, 801 2019), is based on a series of ...
The dependence of mass and environment on the secular processes of AGNs in terms of morphology, colour, and specific star-formation rate
(2018)
Context. Galaxy mass and environment play a major role in the evolution of galaxies. In the transition from star-forming to quenched galaxies, active galactic nuclei (AGNs) also have a principal action therein. However, ...
Effects of varying curvature and width on the electronic states of GaAs quantum rings
(Sociedade Brasileira de Física, 2006-06-01)
Stationary states of an electron in thin GaAs elliptical quantum rings are calculated within the effective-mass approximation. The width of the ring varies smoothly along the centerline, which is an ellipse. The solutions ...
Effects of varying curvature and width on the electronic states of GaAs quantum rings
(Sociedade Brasileira de Física, 2006-06-01)
Stationary states of an electron in thin GaAs elliptical quantum rings are calculated within the effective-mass approximation. The width of the ring varies smoothly along the centerline, which is an ellipse. The solutions ...