Stiff-knee gait is a common walking problem in cerebral palsy characterized by insufficient knee flexion during swing. To identify factors that may limit knee flexion in swing, it is necessary to understand how unimpaired subjects successfully coordinate muscles and passive dynamics (gravity and velocity-related forces) to accelerate the knee into flexion during double support, a critical phase...

We present a reconstruction of the mean axisymmetric azimuthal and meridional flows in the Derviche Tourneur Sodium installation in Grenoble liquid sodium experiment. The experimental device sets a spherical Couette flow enclosed between two concentric spherical shells where the inner sphere holds a strong dipolar magnet, which acts as a magnetic propeller when rotated. Measurements of the mean...

Steady, dihedrally symmetric patterns with sharp peaks may be observed on a spinning skirt, lagging behind the material flow of the fabric. These qualitative features are captured with a minimal model of traveling waves on an inextensible, flexible, generalized-conical sheet rotating about a fixed axis. Conservation laws are used to reduce the dynamics to a quadrature describing a particle in a...

A C-grid staggering, in which the mass variable is stored at cell centers and the normal velocity component is stored at cell faces (or edges in two dimensions) is attractive for atmospheric modeling since it enables a relatively accurate representation of fast wave modes. However, the discretization of the Coriolis terms is non-trivial. For constant Coriolis parameter, the linearized shallow w...

Two new intermolecular vibration-rotation-tunneling (VRT) bands of Ar-NH3 have been measured using tunable far infrared laser spectroscopy. We have unambiguously assigned these and a previously measured FIR band [ Gwo et al., Mol. Phys. 71,453 ( 1990) ] as II ( l,,n = 0) +B(O,,n = 0), 2( l,,n = 0) +-Z(O,,n = 0), and B(O,,n = 1) +-Z(O,,n = 0). The three upper states of these are found to be stro...

Twenty-one normal and four labyrinthine defective (L-D) subjects were exposed to repetitive, twenty-second intervals of (1) zero gravity or (2) zero gravity plus Coriolis acceleration in parabolic flight. The normal subjeets showed significant hematological and biochemieaI evidence of stress in the form of leukoeytic changes and alteration in excretion rates of eorticosteroids, while the L-D gr...

We examine the properties of spiral shocks from a steady, adiabatic, non-axisymmetric accretion disk around compact star in binary. first time incorporate all possible influences binary through adopting Roche potential and Coriolis forces basic conservation equations. In this paper, we assume to be point-wise self-similar, flow is vertical hydrostatic equilibrium simplify study. also investigat...