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.
Nonlinear equations of motion for fish-robot have been derived based on three basic motion behaviors, swimming, orientating, and driving. By incorporating the fish-tail mechanism, 2-DOF barycenter mechanism, and autonomous underwater vehicle-like dynamics model, the fish robot motion and maneuverability are considered in north-east-down frame. A sliding mode controller for swimming, orientating, and...
The potential of the genetic clock is in its role to trigger consecutive logic reactions in sequential biological circuits. However, it is hard to directly create a square wave generator in the gene regulatory systems for use as a genetic clock. This research studies the design of a genetic clock generator based on combination of a genetic oscillator with a toggle switch via a dual repressor. This...
Nonlinear equations of motion for fish-robot have been derived based on two basic behaviors, swimming and orientating. By incorporating the fish-tail mechanism and autonomous underwater vehicle-like dynamics model, the fish robot motion and maneuverability are developed in earth-fixed frame motion. A nonlinear H∞ robust controller for swimming, orientating, and tracking control of the fish robot is...
Two-DOF barycenter mechanism and its control are proposed. The mechanism by means of the moved balancing masses along two axes changes the center of gravity of fish's body. The projected torques on x and y axes propel pitch and roll angles to the desired values. Merging the pitching and rolling models with fish-tail and rigid-body models, the fish robot motion and maneuverability can be achieved in...
Derivation of the mathematical model for a robot fish considering forward motion and yaw angle kinematics is presented. This model also includes details of the hydrodynamic force by considering the condition of fish swimming underwater. The nonlinear dynamical model in Carangi form locomotion type is derived by use of Lagrange's equation, which concerning about 4 links of fish robot equivalent model...
An ABS (Anti-lock Braking System) is a safety mechanism for vehicles which prevents the wheels of motor vehicles locked (ceasing of rotation) while braking. This research intends to develop and implement a non-mechanical ABS controller based on the application of regenerative and short-circuit braking mechanism in two-wheel electric vehicle. Boundary layer velocity control is proposed to ensure the...
Biological systems possess highly complex characteristics which are usually nonlinear and stochastic. How to estimate the states of that kind of systems is attractive to control engineers when the sensors are unavailable to measure desired information. In this paper, a robust estimation scheme based on the extended Kalman filter to estimate the state variables of a class of noisy gene regulatory networks...
Biochemical networks are not only complex but also extremely large. The construction and analysis for the mathematical model is thus relatively difficult. In practice, it is usually desirable to further simplify the structure of biological system models for the sake of reducing computation burden or simplification of the task of analysis. By introducing the technique of singular value decomposition...
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.