Tool for the identification and implementation of Environmental Indicators in Ports (TEIP)

In this paper, the concept of environmental indicator is reviewed as a relevant element used in the environmental management of any organisation. The importance of this element within an Environmental Management System (EMS) is also justified. Although EMS standards recognise the relevance of using indicators, they do not specify any methodology to identify which indicators have to be implemented. In addition, the present research demonstrates that although there is a high percentage of European ports that have already implemented performance indicators, most of them do not mention the method applied to obtain the indicators. This suggests that some of the procedures used by ports to identify indicators may not necessarily be science-based or systematic in approach. For these reasons, the need to develop a new methodology able to identify the ports' most adequate indicators was detected. Therefore, a Tool for the identification and implementation of Environmental Indicators in Ports (TEIP) was developed. It aims at identifying performance indicators in ports and providing guidelines for their proper implementation. This is a computer and science-based tool (www.eports.cat/teip) that provides a quick calculation and outputs, and it is designed to be as user-friendly and practical as possible in order to facilitate its completion by the user. This new methodology is applicable to all types of ports no matter the size, geographical location or its commercial profile; it provides targeted and specific results for each one. TEIP aims at helping port managers at easily determining their significant port indicators, which provides valuable elements for the decision-making processes.Peer ReviewedPostprint (author's final draft

Terminal Control Of A 2-Link Robot Manipulator

This paper describes a comparative evaluation of different controllers for a position regulation 2-link robot manipulator. The equation of motion for two link robot is a nonlinear di erential equation. The controllers, namely two proportional plus derivative with a nonlinear compensation and a terminal control, are designed from the dynamic description of the two link robot and then the controlled system is simulated by means of Matlab/ Simulink software which allows animated simulations using 3D World Editor (Matlab)2020/202

3D model deformations with arbitrary control points

Cage-based space deformations are often used to edit and animate images and geometric models. The deformations of the cage are easily transferred to the model by recomputing fixed convex combinations of the vertices of the cage, the control points. In current cage-based schemes the configuration of edges and facets between these control points affects the resulting deformations. In this paper we present a family of similar schemes that includes some of the current techniques, but also new schemes that depend only on the positions of the control points. We prove that these methods afford a solution under fairly general conditions and result in an easy and flexible way to deform objects using freely placed control points, with the necessary conditions of positivity and continuity.Peer ReviewedPostprint (author's final draft

Volume-preserving deformation using generalized barycentric coordinates

The cage-based deformation of a 3D object through generalized barycentric coordinates is a simple, e fficient, effective and hence widely used shape manipulation scheme. Editing vertices of the polyhedral cage induces a smooth space deformation of its interior; the vertices thus become control handles of the final deformation. However, in some application fi elds, as medicine, constrained volume preserving deformations are required. In this paper, we present a solution that takes advantage of the potential of the deformations based on generalized barycentric coordinates while adding the constraint of keeping a volume constant. An implementation of the proposed scheme is presented and discussed. A measure of local stress of the deformed volume is also proposed.Peer ReviewedPostprint (author’s final draft

Crònica legislativa de Catalunya

Crònica legislativa catalana corresponent al segon semestre de l'any 201

Crònica legislativa de l'Estat espanyol

Crònica legislativa de l'Estat espanyol, segon semestre de 201