The investigation on Boolean operations on the stop conditions of derivation modes for cooperating distributed grammar systems is continued by considering the logical negation of such conditions. The focus is on the negation of the t-mode of derivation, where such non-t-components may stop rewriting only if they still have a production applicable to the current sentential form. In many cases, h...

This paper describes how the rapid and detailed modelling and simulation methods can be used to increase the efficiency of mixed simulation projects initiated to support the design of interconnected ICT (Information and Communication Technology) and BP (Business Process) systems. A system of cooperating rapid and detailed methods for critical and noncritical parts of systems is introduced in th...

The kinematics and dynamics of two industrial cooperating robots are presented in this paper. The NOC (natural orthogonal complement) method is used to derive the dynamical equations for the motion of two cooperating robots. The joint torques of the two robots are determined based on the optimization techniques in order to obtain unique solution for joint torques. To this end, minimizing the cr...

Cooperative clinical information systems (CCIS) are destined to become an invaluable tool for managing care processes in which a number of interrelated care tasks are performed by a network of cooperating agents. After introducing this important new domain, the key mechanisms and structures needed to support CCIS are detailed a set of communication primitives are developed, the concept of agent...

The paper describes the single range observability issues related to a kinematics model of cooperating underwater vehicles. The paper extends previous results building on an augmented state technique allowing to reformulate the nonlinear observability problem in terms of a linear time varying one. As a result, all possible (globally) unobservable motions are characterized in terms of the system...

Competitive enterprises have to react fast and flexible to an increasing dynamic environment. To achieve the ability to adapt on these new requirements autonomous cooperating logistic processes seems to be an appropriate method. This paper introduces a general definition of autonomous control and its meaning in a logistics context. Based on this, a catalogue of criteria is developed to ensure t...

This paper addresses the posture control problem for robotic systems subject to kinematic constraints. The key idea is to consider the kinematic constraints of the mechanisms from their structure equations, instead of Artigo submetido em 10/03/2011 (Id.: 01293) Revisado em 27/05/2011 Aceito sob recomendação do Editor Associado Prof. Carlos Roberto Minussi explicitly using the constraint equatio...

DVECS (Distributed Virtual Environment Collaborative Simulator) is used for testing of unmanned underwater vehicles (UUVs) where both real and simulated vehicles can interact and cooperate in a hybrid, synthetic, virtual environment. This virtual reality system can be used to determine: (1) the optimal performance and criteria for the cooperating vehicles and its relative application; (2) the d...