The Portuguese Constitution, in article 22, instituted the general principle of tort liability of the State and other public law entities. Consequently, ordinary legislation established the tort liability of the State into the Portuguese Legal Order, by means of Decree-Law 48051, of 1967. This decree, which was criticised extensively, was amended by virtue of Law 67/2007, of 31 December, establ...

The advent of the Internet and the subsequent adoption of open access schemas are changing the nature of the scholarly discourse. In response, we will stimulate a debate about the role and desired form of open access publishing in the context of the IS discipline. In particular, we explore the potential contribution of establishing an open access disciplinary repository of working papers and wo...

Time optimal control problems for an internally controlled heat equation with pointwise control constraints are studied. By making use of Pontryagin’s maximum principle and a special kind of property for nontrivial solutions of the heat equation, we derive a bangbang property for time optimal control. Using the bang-bang property and establishing certain connections between timeand norm optimal...

From a viewpoint of “knowledge management”, collaborative space for learning is an aid to encourage organizational members (e.g. employee) to acquire or create important organizational intellect (e.g. knowledge) through group activity (e.g. a free discussion). In this paper we focus on design of collaborative space, which is a key for organization to grow, and aim to improve the quality of coll...

In order to realize county-level land use database remittance, establish the provincial land use database and realize annual change statistics, this paper analyzed the requirements for establishing the provincial land use database remittance standards. It proposed the principle of establish the standard compile, introduced the standard establishment process, described the standard main content,...

In This paper we investigate the design of controllers, for discrete-time Markovian jump linear systems, that achieve optimal reference tracking in the presence of preview. In particular, given a reference sequence, we obtain the optimal control law for the fully observed case, while the output feedback case is also briefly discussed. We provide the optimal control law for the infinite and fini...

The problem of establishing the identity of a speaker from a given utterance has been conventionally addressed using techniques such as Gaussian Mixture Models (GMM's) that model the characteristics of a known speaker via means and covariances. In this paper we pose the task as a binary classification problem, and whilst in principle any one of a number of classifiers could be applied, this wor...

In this paper we investigate the finite horizon linear quadratic regulation (LQR) problem for a linear continuous time system with time-varying delay in control input and a quadratic criterion. We assume that the time-varying delay is of a known upper bound, then the LQR problem is transformed into the optimal control problem for systems with multiple input channels, each of which has single co...

Some of the results of a previous paper 1 on the relations between adiabatic and incompressible systems are the establishing of a variational energy principle for incompressible systems and consequently of comparison theorems for stability of adiabatic and incompressible perturbations of the same equilibrium state. In this paper we extend these analyses to the most general compressible regimes ...

The article contributes to the existing system to assess efficiency of regional executive authorities. It involves factors defining regional development outlook in terms of efficiency, effectiveness and quality of managing hidden economy as well as judicial and legislative power. It develops general guidelines to improve regional public management in the course of establishing computer oriented...