The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Summary form only given. In the last century, R&D in robotics had been mainly concentrated on industrial robot and its related applications. In the 21 century R&D activities in robotics have been continuously high in Japan for the first decade. Representatively, METI, Japanese Ministry of Economy, Trade and Industry, successively launched R&D projects in robot area. Topics of the projects...
Actuators form one of the critical components of any mechatronic system, converting stored energy available in a range of forms (typically electric, hydraulic, pneumatic or chemical), into useful mechanical actions that allow a system to interact with the environment. The selection of the actuators and the power sources in any mechanism is therefore one of the key determinants of the mechanical performance...
With time-based competition and rapid technology advancements, effective manufacturing scheduling and supply chain coordination are critical to quickly respond to changing market conditions. These problems, however, are difficult in view of inherent complexity and various uncertainties involved. A manufacturing problem is first formulated within the job shop context with order arrivals, processing...
To prevent crashes of automobiles, many driver assistance systems have been proposed. Several warning systems have been proposed to reduce driver cognitive and judgment load. Such warning systems should have ability to evaluate collision risk and to start warning appropriate timing. Inversely, the system's efficacy can be decreased if the driver feels annoyance and/or mistrust with inappropriate warning...
Several researches have pointed out that the temperature at the nose tip is possibly effective for evaluating driver mental condition. In order to establish methods for driver monitoring, whether a method should be adapted to each person or not is an important question. This paper investigates individual differences in effects of performing a cognitively distracting subtask during driving on the temperature...
This research examined differences of eye movement in left or right turn conditions at each of intersection type between older and younger drivers. To examine these differences, we measured visual scanning time by eye-marker. The results showed that on the type T1 which has the front, the left, or the right roads, older drivers tend to keep eyes on the front for a short time than younger drivers in...
This study examined the difference of driving performance according to turn types (left /right turn), suggested by Bao and Boyle (2009), and age(old and young adults). To do that, the turn types at the intersection were divided into 12 scenarios of left and right turn, respectively and by making approach velocity at the intersection, the passing time at the intersection, the speed and steering variation...
The purpose of the present study was to clear the differences of psychophysiological responses due to individual sensitivity of simulator sickness. The present experiment tried to investigate the simulator sickness objectively by observing the change of the simulator sickness for the different level of sickness groups (sick and non-sick group). The subjective evaluations using Simulator Sickness Questionnaire...
A new inverse kinematic solution for serial robot manipulators is represented in this paper. Major aims of this paper are to obtain singularity avoiding inverse kinematic solutions and formulize kinematic problems in a compact closed form. Our solution method is based on screw theory and it uses quaternions as a screw motion operator. Screw theory methods based on line transformation. All screw motions...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.