Humans can perceive their spatial surroundings both by the visual and the auditory senses. Even though the auditory system has much lower spatial resolution, it can still serve as an alternative or supplementary information channel for the visual modality. In this paper, we investigate the feasibility of conveying elaborate visual information by auditory patterns. A system is developed which tr...

Rector Magnificus, ladies and gentlemen, Human culture is embodied in the collection of information transmitted from one generation to another. It is based not only on storing this information, but also on conveying this information in such a way that the relationships within the information are understood. The era of multimedia and internet technology has not changed this overall goal in any f...

The purpose of this study was to determine a convenient communication tool to help educate parents about varying the positions of their new babies. Eighty-eight percent of babies whose parents had received a brochure explaining the importance of early and regularly scheduled "tummy time" were placed in the prone position more than one time a day. Seventeen of 34 babies were started prone before...

The purpose of this study is to build a monaural auditory display to convey four pieces of directional information (upward, downward, rightward, and leftward) to users effectively and intuitively without the need for wearing headphones or preparing more than one speaker. We prepared five types of monaural auditory displays consisting of triangle wave sounds and conducted an experiment to invest...

The rotary valve is a widely used mechanical device in many solids-handling industrial processes. However, it may also be responsible for most of the attrition effects occurring in a typical process. In this study, the attrition effects occurring in a rotary valve operating as a stand alone device and as part of a pneumatic conveying system are investigated. The Gwyn’s correlation was found to ...