The article discusses the choice of power and type drive motor for system controlling vibration amplitude rectifier rocker arms continuously variable mechanical transmission, intended use on a vehicle. Formulas calculating required torque rotational speed with planetary differential control gear are given. It is shown that an electrohydraulic provides operation system. results testing presented.

A vertical talus is one feature of the rare congenital abnormality known as congenital convex pes valgus (Lamy and Weissman 1939), or rocker-foot (Hark 1950). Two cases of vertical talus deformity are described here associated with severe burn contractures. The position of the contractures suggests that the scarring is responsible for the deformities. If this is so, does the acquired abnormalit...

A sinusoidal grating can be viewed as a series of light and dark bars. Here we measure the contrast discrimination thresholds for light and dark bars individually, and find that the contrast discrimination thresholds for the whole sinusoid can be explained as ideal summation of the light and dark bar thresholds. We propose a model for light bar, dark bar, and sinusoidal contrast discrimination ...

Abstract Robotic rovers equipped with articulated rocker-bogie suspension have aroused great interest after the explorations on Mars; this has also shifted to different types of terrestrial applications such as in agriculture, military, and rescue fields. The can be designed so that, when rover is flat horizontal ground, weight evenly distributed among wheels; way, all wheels same traction capa...

of bridges are typically based on simplified analyses or empirical data from recent earthquakes. Since earthquake damage data are very scarce in the central and southeastern United States (CSUS), using analytical methods is the only feasible approach to obtain fragility curves. In 1990, bridges in the CSUS began incorporating seismic details. Some of the changes included the component design fo...