The present study addresses the question of how objects are localized across saccades. In a task requiring participants to compare the location of a post-saccadic probe with the pre-saccadic target, we investigated the roles of saccade landing site and post-saccadic probe location. Saccade landing sites vary from trial to trial because of oculomotor error but can also be shifted by saccadic ada...

Hypersonic entry guidance technology is being developed to support a broad range of future Mars missions. The goal is to develop guidance technology that, in conjunction with other entry, descent, and landing (EDL) technologies, will allow greater landing accuracy, as well as access to higher elevation landing sites, than currently achievable. The guidance technology should be applicable to cap...

Autonomous landing is an essential function for micro air vehicles (MAVs) for many scenarios. We pursue an active perception strategy that enables MAVs with limited onboard sensing and processing capabilities to concurrently assess feasible rooftop landing sites with a vision-based perception system while generating trajectories that balance continued landing site assessment and the requirement...

A significant increase in the number of reported cases of La Crosse virus (LACV) infections in eastern Tennessee has occurred in the last ten years. The objective of this study was to determine the abundance and habitat preferences of the potential vectors of LACV in this region. Adult host-seeking mosquitoes were collected using CO(2)-baited CDC light traps and a series of human-landing catche...

Guidance and control of aircraft in the landing phase imposes extra pilot work loads, hence application of automatic landing control systems is of great importance. In this study automatic landing control systems are introduced and an optimal landing control system is designed. The control system performance criteria are based on minimum control effort. The designed system is simulated for a tr...

Thai has an alphabetic script with a distinctive feature - it has no spaces between words. Since previous research with spaced alphabetic systems (e.g., English) has suggested that readers use spaces to guide eye movements, it is of interest to investigate what physical factors might guide Thai readers' eye movements. Here the effects of word-initial and word-final position-specific character f...

Introduction: Combined lander-rover modeling is the transformational means for developing high resolution, color, three-dimensional representations of planetary features such as cave entrances and skylights. Lander-rover modeling combines registered overflight imagery with rover-based surface imaging techniques to build highly accurate co-registered models. The models produced by this approach ...

Sixty-six college students read two chapters from a contemporary novel while their eye movements were monitored. The eye movement data were analyzed to identify factors that influence the location of a reader's initial eye fixation on a word. When the data were partitioned according to the location of the prior fixation (i.e. launch site), the distribution of fixation locations on the word (i.e...

Abstract International efforts are underway to explore the Moon’s south polar region with robotic and human missions. These missions will address key scientific exploration objectives in a rich possibilities, designed develop sustained lunar presence. To assist trade study among six potential landing sites identified for Artemis astronauts, we examined two of those sites: 007 011. We find that ...