This paper addresses the problem of schedulingN printed circuit boards (PCBs) on a single machine equippedwith an automatic component interchangemechanism. Assume that the total number of di€ erent components required to process all N PCBs is greater than the capacity of the spool. If the requisite components are not on the spool, then one or more component switches must occur before the PCB ca...

Three studies examined the claim that hand movements can facilitate imagery for object rotations but that this facilitation depends on people's model of the situation. In Experiment 1, physically turning a block without vision reduced mental rotation times compared with imagining the same rotation without bodily movement. In Experiment 2, pulling a string from a spool facilitated participants' ...

Factory Repository Implementation (Class Hierarchy) SPOOL Repository Object Retrieval Object Manipulation Object Instantiation and Initialization

This article deals with the experimental and numerical analysis of leakage characteristics proportional directional valve. These describe flow through valve in region center position spool The element under investigation is a three-position four-way zero overlap feedback from position. actual sensed by an inductive sensor processed integrated electronics. By means offset on electronics, it also...

This paper deals with the challenging aspect concerning the state estimation in hydraulic actuators characterized by not negligible nonlinearities. Particularly,. One of the most common hard nonlinearities in hydraulic actuator is the deadzone. More specifically, dead-zone occurs in hydraulic control valves when its spool occludes the orifice with an overlap, so that for a range of spool positi...

Generation of coherent short-wavelength radiation across a plasma column is dramatically improved under traveling-wave excitation (TWE). The latter is optimized when its propagation is close to the speed of light, which implies small-angle target-irradiation. Yet, short-wavelength lasing needs large irradiation angles in order to increase the optical penetration of the pump into the plasma core...

A better understanding of turbulent unsteady flows is a necessary step towards a breakthrough in the design of modern compressors. Owing to high Reynolds numbers and very complex geometry, the flow that develops in such industrial machines is extremely hard to predict. At this time, the most popular method to simulate these flows is still based on a Reynolds-averaged Navier-Stokes approach. How...