Results 21 to 30 of about 212,043 (297)

Kinematic Modeling and Simulation of a New Robot for Wingbox Internal Fastening Application

open access: yesMachines, 2023
At present, the fastener installation in a wingbox facing a narrow space must be performed manually. Using a robot is an appropriate solution for automatic assembly. However, the existing robots cannot meet the internal fastening requirements.
Jiefeng Jiang, Jingjing You, Yunbo Bi
doaj   +1 more source

g1(x) and g2(x) in the Meson Cloud Model [PDF]

open access: yes, 2005
We calculate the spin dependent structure functions g1(x) and g2(x) of the proton and neutron. Our calculation uses the meson cloud model of nucleon structure and includes the effects of kinematic terms which mix transverse and longitudinal spin ...
Signal, A. I.
core   +3 more sources

Engineering kinematic theory in application to the calculation of pile foundations [PDF]

open access: yesИнженерно-строительный журнал, 2017
The author has proposed a variant of calculation of pile foundation with the use of the engineerin kinematic theory of ground contact pressure. This calculation uses two separate graph connection, the pressure – vertical or horizontal offset.
V.S. Korovkin
doaj   +1 more source

A new calculation for D(e,e'p)n at GeV energies [PDF]

open access: yes, 2008
We perform a fully relativistic calculation of the D(e,e'p)n reaction in the impulse approximation. We employ the Gross equation to describe the deuteron ground state, and we use the SAID parametrization of the full NN scattering amplitude to describe ...
Jeschonnek, Sabine, Van Orden, J. W.
core   +1 more source

Meson Form Factors and Non-Perturbative Gluon Propagators [PDF]

open access: yes, 2002
The meson (pion and kaon) form factor is calculated in the perturbative framework with alternative forms for the running coupling constant and the gluon propagator in the infrared kinematic region.
A. C. Aguilar   +46 more
core   +2 more sources

Instanton Contribution to the Pion Electro-Magnetic Formfactor at Q^2 > 1 GeV^2 [PDF]

open access: yes, 2002
We study the effects of instantons on the charged pion electro-magnetic formfactor at intermediate momenta. In the Single Instanton Approximation (SIA), we predict the pion formfactor in the kinematic region Q^2=2-15 GeV^2.
A. Blotz   +35 more
core   +2 more sources

The colour evolution of the process q q -> q q g

open access: yes, 2005
We calculate the soft anomalous dimension matrix for a five-parton process, qq -> qqg. Considering different bases we unveil some interesting properties of this matrix.Comment: 11 pages; calculation extended to general 5-parton ...
Kyrieleis, A., Seymour, M. H.
core   +1 more source

Estimation of the Screen Movement Influence on Aerodynamic Flows in the Combine Harvester Cleaning System

open access: yesМеханика машин, механизмов и материалов
The paper examines aerodynamic modeling of air flows in the cleaning system of a combine harvester. A methodology has been developed for modeling the cleaning system, taking into account the movement of its elements, such as screens and boards, using the
Aliaksandr А. Kalinouski
doaj   +1 more source

$O(\alpha_s^2)$ corrections to fully-differential top quark decays

open access: yes, 2013
We describe a calculation of the fully-differential decay rate of a top quark to a massless $b$-quark and a lepton pair at next-to-next-to-leading order in perturbative QCD.
Brucherseifer, Mathias   +2 more
core   +1 more source

Kinematic collapse load calculator: Circular arches

open access: yesSoftwareX, 2018
[EN] Masonry arches and their typical failure do not fall elegantly into standard design and analysis methods. The system is highly dependent on geometry and failure is dominated by mechanization, not material strength. Focusing directly on the mechanized failure, this work presents the kinematic collapse load calculator (KCLC) for circular arches. The
STOCKDALE, GABRIEL LEE   +7 more
openaire   +5 more sources

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