Comparison of several types of electrostatic microactuators is carried out, particularly with respect to their resultant force effects. The continuous mathematical model of such actuators is mostly described by the Laplace equation. In this paper, its numerical solution is performed by a fully adaptive higher-order finite element method, using a code developed by the authors. The methodology is...

Comparison of several types of electrostatic micro-actuators is carried out, particularly with respect to their resultant force effects. The continuous mathematical model of such actuators is mostly described by the Laplace equation. In this paper, its numerical solution is performed by a fully adaptive higher-order finite element method, using a code developed by the authors. The methodology i...

Comparison of several types of electrostatic micro-actuators is carried out, particularly with respect to their resultant force effects. The continuous mathematical model of such actuators is mostly described by the Laplace equation. In this paper, its numerical solution is performed by a fully adaptive higher-order finite element method, using a code developed by the authors. The methodology i...

Two definitions of division by an interval containing zero are compared: a functional one and a relational one. We show that the relational definition also provides interval inverses for other functions that do not have point inverses, such as max and the absolute-value function. Applying the same approach to the ≤ relation introduces the “companion functions” of relations. By regarding the ari...

Linear constraint solving in constraint logic programming requires in cremental checks of the satis ability of a system of equations and inequali ties Experience has shown that Gauss Jordan elimination and the simplex method are e cient enough to be of practical value in the implementation of CLP languages based on linear arithmetic constraints However these algorithms must be modi ed to accomm...


 Abstract. The equation of exchange is derived from a standpoint encompassing the physics and economics thereof, whereby maximisation money value function, increasing in real output decreasing supply, while accounting for time space, subjected to constraint, at macroeconomic level, gives rise an optimal level thereby, expressing liquidity demand coefficient as inverse quotient space over ...

We consider a one-dimensional Allen–Cahn equation with constraint from the view-point of numerical analysis. Our constraint is the subdifferential of the indicator function on the closed interval, which is the multivalued function. Therefore, it is very difficult to make numerical experiments of our equation. In this paper we approximate our constraint by Yosida approximation. Then, we study th...

A new hybrid force-position control method for uncertain robotic manipulator interacting with its environment is presented. First, the dynamical model system in the compliance frame is derives from the usual joint frame model and leads to two sets of equations due to the constraint associated to the contact surface. Next, the two dynamics are separately used for the synthesis of position and fo...