Harms tangent screen, a subjective measurement method of three-dimensional binocular alignment, was compared with search coil recording. Twenty-three patients with unilateral trochlear nerve palsy were measured in nine gaze positions. The two methods correlated best for the horizontal gaze deviation, the vertical gaze deviation, and the vertical incomitance, but there was no correlation for the...

purpose: to compare corneal endothelial cell features after cataract surgery performed using fixed torsional or conventional (pulse) ultrasound mode. methods: in this randomized comparative study, 60 eyes were randomly and equally divided into two groups of torsional or longitudinal mode phacoemulsification. all surgeries were performed by an experienced surgeon, and the outcomes were evaluated...

We propose a coherent, strong-field approach to control the torsional modes of biphenyl derivatives, and develop a numerical scheme to simulate the torsional dynamics. By choice of the field parameters, the method can be applied either to drive the torsion angle to an arbitrary configuration or to induce free internal rotation. Transient absorption spectroscopy is suggested as a probe of torsio...

In this paper, the effect of Static VAr Compensator (SVC) parameters on the nonlinear interaction of steam power plant turbine-generator set is studied using the Modal Series (MS) method. A second order representation of a power system equipped with SVC is developed and then by MS method the nonlinear interaction of torsional modes is assessed under various conditions and the most influencing f...

The finite element model of the seven connection heads an automotive body in white is established, and stiffness calculation carried out by taking lower joint B pillar as example. Nine values were obtained for each branch, which can be written a 3 × symmetric matrix. front back bending stiffness, torsional internal external are with decoupling method. Based on this, unrigid rigid joints three r...

A 54-story steel, perimeter-frame building in downtown Los Angeles, California, is identified by a wave method using records of the Northridge earthquake of 1994 (ML=6.4, R=32 km). The building is represented as a layered shear beam and a torsional shaft, characterized by the corresponding velocities of vertically propagating waves through the structure. The previously introduced waveform inver...

Complex rotating machine trains especially trains including electric machines are subject to the most varied and often most severe torsional disturbances. If shaft or rotating component failures occur as a result of torsional oscillations, the consequences can be catastrophic. In this paper a comprehensive model and simulation method using analytical formulations are developed to study both ste...

Trains including reciprocating machines are subject to the most varied and often most severe torsional disturbances in comparison to other machinery classes. If crankshaft or rotating component failures occur as a result of shaft torsional oscillations, the consequences can be catastrophic. In this paper a new comprehensive model and solution method using analytical formulations are developed t...

A down-sized high-pressure torsion device is developed to be used in an INSTRON deformation machine available at the High Energy Materials Science beamline PETRA III. This setup allows obtain synchrotron diffraction patterns situ during severe plastic straining. Two different materials are studied: pure Ni, dislocation density and coherently scattering domain size analyzed; NiTi shape memory al...

In this paper, we propose the first numerical study of nanotube-based torsional oscillators via developing a new multiscale model. The edge-to-edge technique was employed in this multiscale method to couple the molecular model, i.e., nanotubes, and the continuum model, i.e., the metal paddle. Without losing accuracy, the metal paddle was treated as the rigid body in the continuum model. Torsion...