Human participants made saccadic eye movements to various features in a modified vertical Poggendorff figure, to measure errors in the location of key geometrical features. In one task, subjects (n = 8) made saccades to the vertex of the oblique T-intersection between a diagonal pointer and a vertical line. Results showed both a small tendency to shift the saccade toward the interior of the ang...

This paper describes third aircraft model with 2 degrees of freedom. The aim of this study is to develop a mathematical model for investigation of adoptable landing gear vibration behavior and to design Proportional Integration Derivative (PID) classical techniques for control of active hydraulic nonlinear actuator. The parameters of controller and suspension system are adjusted according to be...

Alarms have been in use for many decades, yet there still needs to be more clarity about what makes a good alarm. Vendors and government agencies developed several useful handbooks describing the Do’s Don’ts of effective alarm design; however, date, we cannot find comprehensive quantitative taxonomy or classification system that allows researchers easily score rank various designs any field—whi...

This paper introduces scoring methods developed to automatically assess the performance of document recognition systems; specifically, to evaluate the spatial correspondence of zones produced by a document segmentor. Two different approaches are discussed. The first approach (based on zone overlap and nearest-neighbors) is better applied to merged zones, whereas the second approach (based on zo...

In this paper, we use computer vision as a feedback sensor in a control loop for landing an unmanned air vehicle (UAV) on a landing pad. The vision problem we address here is then a special case of the classic ego-motion estimation problem since all feature points lie on a planar surface (the landing pad). We study together the discrete and differential versions of the ego-motion estimation, in...

there are a lot of researches in the world about attacks on information systems (is). although there have been many attempts to classify threats of is’s especially in health information systems (his), it is still necessary for all health organization to identify new threats and their sources which threaten security of health care domain. the main aim of this paper is to present a research agend...