Abstract: The increasing requirement on the control performance for systems handling web material led to investigation for sophisticated control strategies. Actually many industrial web-transport systems use decentralized PI-type controllers. But when decentralized control is applied to a web tension control system, the interactions among control stations are the major problem for the controlle...

This paper presents adaptive algorithms to compensate roll eccentricity perturbations in web transport systems. Roll eccentricity creates tension disturbances whose frequencies may be slowly varying due to the change of radius of the roll. The magnitude and phase of these perturbations are estimated through an adaptive algorithm that cancels the effect of these perturbations. The ability of the...

Although it is well known that spatial learning can be important in the biology of predators that actively move around in search for food, comparatively little is known about ways in which spatial learning might function in the strategies of sit-and-wait predators. In this study, Cyclosa octotuberculata, an orb-web spider that uses its legs to contract radial threads of its web to increase thre...

Delivering high quality web applications complying with severe project delivery time constraints is still an elusive goal for a software process. In many software projects, development teams often resort to "short cuts" in the software development process avoiding recommended software process disciplines to speed up delivery. The usual side-effects of this ad-hoc approach are low software quali...

Active dancers are used to control web tension in roll-toroll (R2R) based printing systems. In this paper the control system for a compact active dancer system has been designed using fuzzy logic. The dancer system has a proportional pressure regulator as actuator and a potentiometer to measure the displacement of the system. Controller is designed without using a system model. In this case the...

An innovative type called "butterfly-shaped links steel plate shear wall (BLSPSW)" was proposed as a lateral load resisting system. In this novel system, by creating butterfly-shaped links in the four sides of the web plate, the lateral load resisting mechanism is not the development of a diagonal tension field on the web plate (similar to Conventional SPSWs), but the capacity of the system is ...

I explore the prospects for overcoming the prima facie tension in the following four claims, all of which I accept: (1) the phenomenal character of experience is narrow; (2) virtually all aspects of the phenomenal character of experience are intentional; (3) the most fundamental kind of mental intentionality is fully constituted by phenomenal character; and yet (4) introspection does not by its...

Final step of rail manufacturing is cold rolling straightening process and it hassignificant effects on mechanical properties, straightness, flatness and development of residualstresses. Measurement of residual stresses after straightening process is obligated by railmanufacturing standards. In the present investigation, an attempt has been made to evaluateresidual stresses after straightening ...