In this paper, the tracking control problem is considered for mechanical systems with unilateral constraints and dissipative impacts. In these systems, impacts are triggered at the exact moment when the constraint is closed. Hence, when a reference trajectory experiences an impact, the constraint of a nearby plant trajectory is expected to close just before or after the impact of the reference,...

We present a methodology, called Constraint Partition and Coordinated Reaction (CP&CR), for distributed constraint satisfaction based on partitioning the set of constraints into subsets of di erent constraint types. Associated with each constraint type is a set of specialized agents, each of which is responsible for enforcing constraints of the speci ed type for the set of variables under its j...

As both ordinary and well-trained human motion is mostly planned and controlled unconsciously by the central nervous system (CNS), human control mechanisms remain relatively obscure. Despite, they are an interesting topic, for example, with regard to improve protheses or athletic motion. To learn and understand more about the control of human motion, we use rigid multibody systems to represent ...

Joint beamforming for integrated sensing and communication (ISAC) is an efficient way to combine two functionalities in a system at the waveform level. This letter proposes design ISAC systems with finite alphabet signaling. We formulate problem maximize minimum Euclidean distance (MMED) among noise-free received signal vectors under constraint given power constraint. To tackle formulated optim...

We evaluate the impact of joint-liability incentives in the classroom using a randomized field experiment. The instructor design groups of three students in the classroom and provides a premium to their homework's grade only if all three members of the group accomplish some requirements. We find that joint-liability incentives impact positively on the grades accomplished in homework and midterm...

An observing system simulation experiment (OSSE) has been carried out to evaluate the 1 impact of a hybrid ensemble-variational data assimilation algorithm for use with the National 2 Centers for Environmental Prediction (NCEP) global data assimilation system. An OSSE 3 provides a controlled framework for evaluating analysis and forecast errors since a truth is 4 known. In this case, the nature...

Health impact assessment (HIA) on a strategic level focuses on the broad determinants of health. However, the evidence with regard to the health impacts is often necessarily 'soft'. The example of a health impact review on national housing policy in the Netherlands shows that HIA can be effective even in the absence of hard data. Strategies used to overcome the problem of not having hard data a...