To suppress two-dimensional load sway caused by the horizontal boom motion of a rotary crane, both horizontal and vertical boom motions are generally used. However, it would be more energy efficient and safer if a control scheme using only horizontal boom motion could be developed, eliminating the need for any boom vertical motion. In addition, if we can suppress load sway without the need to m...

An important component of visual search is the preattentive guidance of attention towards a target item. The purpose of this investigation is to determine a tuning curve for these guidance mechanisms. The experiments utilize an oriented grating to mask preattentive guidance in a visual search for orientation. By systematically varying the orientation of the grating, we expected to determine the...

Liquid unloading is a very common and important issue in horizontal gas wells, the presence of curve sections increases complexity phenomenon its study. loading well will sharply reduce production, therefore, liquid-unloading onset different curved pipes essential to production. In this work, experiments were conducted with curvatures. Then, critical velocity V sgCR can be determined according ...

The failure of the Japanese economy to respond to aggressive monetary easing in the form of a zero bid rate on the Bank of Japan's overnight financing facility has reminded some economists of Hicks's IS-LM rendition of Keynes's "liquidity trap". Those who use Hicks's famous diagram as the point of reference for evaluating monetary policy will recall that at some low rate of interest the horizon...

in this paper, we give some characterizations for legendre spherical, legendre normal and legendre rectifying curves in the 3-dimensional sasakian space. furthermore, we show that legendre spherical curves are also legendre normal curves. in particular, we prove that the inverse of curvature of a legendre rectifying curve is a non-constant linear function of the arclength parameter.

OBJECTIVE Assess angular vestibular-ocular reflex (VOR) changes after treatment with intratympanic gentamicin (ITG) for Ménière's disease (MD) and impact on short-term follow-up. DESIGN Prospective study. METHODS Patients submitted to ITG for unilateral MD. The gain VOR and the presence of compensatory saccades elicited by rapid head impulses were measured using the video head impulse test ...

The drift-diffusion (Poisson–Nernst–Planck) model—including a numerical model for cell membranes that resolves surface-charge boundary layers—is applied to the cone–horizontal cell synapse in the outer plexiform layer of the retina. Numerical simulations reproduce the experimental calcium current-voltage (IV) curves for the goldfish retina in response to a bright spot, with and without an illum...