Force-regulation at cellular membranes relies on dynamic molecular platforms that integrate intra- and extracellular signals to control cell shape and function. To correctly respond to a continuously changing environment, activity of these platforms needs to be tightly controlled in space and time. Over the last few years, curvature-dependent mechano-chemical signal translation—a receptor-indep...

Regulating machining forces provides significant economic benefits by increasing operation productivity and improving part quality. Machining force regulation is a challenging problem since the force process varies significantly under normal operating conditions. Since fixed-gain controllers cannot guarantee system performance and stability as the force process varies, a substantial research ef...

Nowadays, simulations of groups are important to bring more natural look to the virtual world. Moreover, large crowds can be used not only to fill space, but to create visually interesting shapes with perceptive or cognitive meaning. Positioning of people to create shapes is well known from live performances, or shows, where dancers are positioned to create formations. This principle is transfe...

The paper aims to describe kinematic hybrid position/force control for a three-degree-of-freedom (3-DOF) in-parallel actuated manipulator, and its application to peg-inhole task about 10μm clearance. The control system consists of a low-level position servo driven by force feedback in base coordinates. The computation required for the control is only inverse kinematics, which is very simple for...

This article presents the design of a robust force controller for a hydraulic actuator interacting with an uncertain environment via quantitative feedback theory (QFT). After the derivation of a realistic nonlinear differential equation model, a linearized plant transfer function is developed. The effects of nonlinearities are accounted for by describing the linearized model parameters as struc...