Results 21 to 30 of about 3,580,269 (281)

Feedback mechanisms in a mechanical model of cell polarization [PDF]

open access: yesPhysical Biology, 2014
Directed cell migration requires a spatially polarized distribution of polymerized actin. We develop and treat a mechanical model of cell polarization based on polymerization and depolymerization of actin filaments at the two ends of a cell, modulated by forces at either end that are coupled by the cell membrane.
Xinxin, Wang, Anders E, Carlsson
openaire   +2 more sources

Mechanical feedback in seashell growth and form [PDF]

open access: yesANZIAM Journal, 2018
Mollusc seashells grow through the local deposition and calcification of material at the shell opening by a soft and thin organ called the mantle. Through this process, a huge variety of shell structures are formed. Previous models have shown that these structural patterns can largely be understood by examining the mechanical interaction between the ...
Erlich, Alexander   +4 more
openaire   +6 more sources

Analysis of Bucket Elevator Drive Mounting Structures Based on Graph Models

open access: yesTrudy Odesskogo Politehničeskogo Universiteta
The paper presents the results of the analysis and synthesis of bucket elevator drives based on combined graph models in mechanics. The study is carried out using the theory of modified kinematic graphs, which makes it possible to represent bucket ...
Володимир Олегович Курган
doaj   +5 more sources

Effects of visual feedback-induced variability on motor learning of handrim wheelchair propulsion. [PDF]

open access: yesPLoS ONE, 2015
It has been suggested that a higher intra-individual variability benefits the motor learning of wheelchair propulsion. The present study evaluated whether feedback-induced variability on wheelchair propulsion technique variables would also enhance the ...
Marika T Leving   +5 more
doaj   +1 more source

Feedback Integrators for Nonholonomic Mechanical Systems [PDF]

open access: yesJournal of Nonlinear Science, 2018
The theory of feedback integrators is extended to handle mechanical systems with nonholonomic constraints with or without symmetry, so as to produce numerical integrators that preserve the nonholonomic constraints as well as other conserved quantities.
Dong Eui Chang, Matthew Perlmutter
openaire   +2 more sources

Editorial: Expanding the horizon of feedback research in second language [PDF]

open access: yes, 2023
On behalf of the editorial board, we welcome readers, researchers, and potential authors to the inaugural issue of the new journal Feedback Research in Second Language. The journal aims to fill gaps in research on corrective feedback by publishing a
Deborah J. Crusan
core   +1 more source

Quantum correlations in optomechanical system in the presence of optical feedback

open access: yesPhysics Open, 2022
In this paper, we investigate the dynamics of quantum correlations for the continuous-variable bipartite optomechanical system in the presence of homodyne mediated quantum feedback.
Sitotaw Eshete
doaj   +1 more source

Feedback Integrators for Mechanical Systems with Holonomic Constraints

open access: yesSensors, 2022
The feedback integrators method is improved, via the celebrated Dirac formula, to integrate the equations of motion for mechanical systems with holonomic constraints so as to produce numerical trajectories that remain in the constraint set and preserve ...
Dong Eui Chang   +2 more
doaj   +1 more source

Maintainability prediction for aircraft mechanical components utilising aircraft feedback information [PDF]

open access: yes, 2011
The aim of this research is to propose an alternative approach to determine the maintainability prediction for aircraft components. In this research, the author looks at certain areas of the maintainability prediction process where missteps or ...
Wan Husain, Wan Mohd Sufian Bin
core   +7 more sources

Modeling and characteristic analysis of pneumatic positioning system with mechanical feedback

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In recent years, electronic control has become mainstream of pneumatic control systems. But pneumatic positioning systems have advantages such as explosion proof, operable even at power failure, simple structure, easier maintenance, and low price ...
Hajime MORIGUCHI   +2 more
doaj   +1 more source

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