Results 11 to 20 of about 878,195 (332)
Control limitations in the null-space of the wrist muscle system [PDF]
Scientific ReportsThe redundancy present within the musculoskeletal system may offer a non-invasive source of signals for movement augmentation, where the set of muscle activations that do not produce force/torque (muscle-to-force null-space) could be controlled ...
Meng-Jung Lee +7 more
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Array Geometry-Invariant Space-Time Opportunistic Null-Space Communications
IEEE AccessThis work studies the impact of the array geometry on a space-time extension of a generalized class of null-space precoding format denoted as $\pi $ -waveforms (Projection-Invariant waveforms), which exhibit subspace invariance and robustness to ...
Jordi Borras, Gregori Vazquez
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Spin-2 fields on Minkowski space near spacelike and null infinity [PDF]
, 2002 We show that the spin-2 equations on Minkowski space in the gauge of the `regular finite initial value problem at space-like infinity' imply estimates which, together with the transport equations on the cylinder at space-like infinity, allow us to obtain
Helmut Friedrich
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Learning Null Space Projections in Operational Space Formulation [PDF]
, 2016 In recent years, a number of tools have become available that recover the underlying control policy from constrained movements. However, few have explicitly considered learning the constraints of the motion and ways to cope with unknown environment.
Hsiu-Chin Lin, Matthew Howard
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Numerical Quantification of Controllability in the Null Space for Redundant Manipulators
Applied Sciences, 2021 Redundant motion, which is possible when robotic manipulators are over-actuated, can be used to control robot arms for a wide range of tasks. One of the best known methods for controlling redundancy is the null space projection, which assigns a priority ...
Seonwoo Kim, Seongseop Yun, Dongjun Shin
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Learning null space projections [PDF]
2015 IEEE International Conference on Robotics and Automation (ICRA), 2015 Many everyday human skills can be considered in terms of performing some task subject to a set of self-imposed or environmental constraints. In recent years, a number of new tools have become available in the learning and robotics community that allow data from constrained and/or redundant systems to be used to uncover underlying consistent behaviours ...
Lin, Hsiu Chin +2 more
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Nihon Kikai Gakkai ronbunshu, 2023 NV (Noise and Vibration) performance is determined by the influence of all components constituting a whole structure. It is difficult to design NV performance efficiently because the structural modification of a certain component affects the performance ...
Masashi INABA, Yuichi MATSUMURA
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Null spaces of Radon transforms [PDF]
Advances in Mathematics, 2016 24 pages.
Ricardo Estrada, Boris Rubin
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On 2 - normed space valued paranormed null sequence space
Bibechana, 2013 In this paper we introduce and study a new class c0 ( S, α‾ , u‾ , ||. , .|| ) of sequences with values in 2- normed space as a generalization of basic null sequence space c0. We investigate some conditions pertaining to the containment relations of the
Narayan Prasad Pahari
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The curious case of null warped space [PDF]
Journal of High Energy Physics, 2010 We initiate a comprehensive study of a set of solutions of topologically massive gravity known as null warped anti-de Sitter spacetimes. These are pp-wave extensions of three-dimensional anti-de Sitter space. We first perform a careful analysis of the linearized stability of black holes in these spacetimes.
Dionysios Anninos +4 more
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