A general model for a rotating homogenous j-lexible robot link is developed. The model describes twodimensional transverse vibrations induced by the actuator due to misalignment of the actuator axis of rotation relative to the link symmetry axis and due to translational acceleration of the link. The model is validated experimentally.

In the title compound, C6H12O4.H2O, 1,4/2,5-cyclohexanetetrol and water molecules are seen to possess twofold symmetry. All four hydroxyl groups of the tetrol participate in extensive intermolecular O-H...O hydrogen bonding to form molecular tapes propagating along the a axis. Translationally related tapes along the c axis are held together by four coordinated water molecules.

Abstract: We prove the existence of global weak solutions to the Navier-Stokes equations for compressible isentropic fluids for any γ > 1 when the Cauchy data are helically symmetric, where the constant γ is the specific heat ratio. Moreover, a new integrability estimate of the density in any neighborhood of the symmetry axis (the singularity axis) is obtained.

The title compound, C(32)H(32)N(2), has crystallographic twofold rotation symmetry, with two C atoms lying on the rotation axis. The dihedral angle between the substituted benzene ring and the naphthalene ring system is 79.8 (1)°. The crystal structure is stabilized by C-H⋯N inter-actions, which form a chain motif along the b-axis direction.

Recent research suggests that human symmetry-detection mechanisms cannot simultaneously compare different colors across the axis of symmetry (Nature 399 (1999) 115). In the present study, observers were required to judge symmetry in arrays composed of elements varying not only in color, but also in size, spatial frequency and orientation. In every case, response times increased with the number ...

26 To investigate vestibulo-ocular reflex (VOR) adaptation produced by changes in 27 peripheral vestibular afference, we developed and tested a vestibular “prosthesis” that 28 senses yaw-axis angular head velocity and uses this information to modulate the rate of 29 electrical pulses applied to the lateral canal ampullary nerve. The ability of the brain to 30 adapt the different components of t...

BACKGROUND It is generally assumed that the migration of anterior visceral endoderm (AVE) cells from a distal to a proximal position at embryonic day (E)5.5 breaks the radial symmetry of the mouse embryo, marks anterior, and conditions the formation of the primitive streak on the opposite side at E6.5. Transverse sections of a gastrulating mouse embryo fit within the outline of an ellipse, with...

To investigate vestibuloocular reflex (VOR) adaptation produced by changes in peripheral vestibular afference, we developed and tested a vestibular "prosthesis" that senses yaw-axis angular head velocity and uses this information to modulate the rate of electrical pulses applied to the lateral canal ampullary nerve. The ability of the brain to adapt the different components of the VOR (gain, ph...

We theoretically demonstrate that class-I topological Dirac semimetals (TDSMs) can provide a platform for realizing both electrically and magnetically tunable spin–charge conversion. With time-reversal symmetry, the spin component along uniaxial rotation axis ( z axis) is approximately conserved, which leads to an anisotropic Hall effect; resulting current relies on relative orientation between...

S U M M A R Y We examine seismic velocity and anisotropy at the interface between the Australian and the subducting Pacific Plate in southern North Island, New Zealand using receiver functions from teleseismic earthquakes recorded on two L-shaped seismic arrays. IRIS station SNZO makes up the corner of the southern array. Velocity models are tested with a ray theoretical method that allows both...