Abstract
Human performance, in all its different dimensions, is a very complex and interesting topic. In this paper we focus on performance in the workplace which, asides from complex is often controversial. While organizations and generally competitive working conditions push workers into increasing performance demands, this does not necessarily correlates positively to productivity. Moreover, existing performance monitoring approaches (electronic or not) are often dreaded by workers since they either threat their privacy or are based on productivity measures, with specific side effects. We present a new approach for the problem of performance monitoring that is not based on productivity measures but on the workers' movements while sitting and on the performance of their interaction with the machine. We show that these features correlate with mental fatigue and provide a distributed architecture for the non -intrusive and transparent collection of this data. The easiness in deploying this architecture, its non -intrusive nature, the potential advantages for better human resources management and the fact that it is not based on productivity measures will, in our belief, increase the willingness of both organizations and workers to implement this kind of performance management initiatives.

Abstract

Abstract
Mapping the seabed represents a fundamental task for many applications. A key technology for that goal is SideScan Sonar (SSS) imaging, which offers a large operating range and high resolutions. However, SSS often suffers from echo decay due to water absorption, producing undesired intensity non-uniformities in the image. We propose here a new inhomogeneity correction technique for SSS imagery that exploits two-dimensional information to estimate and remove this nonuniformity. Our approach achieves results similar or better than other recent techniques, and it enjoys a great computational efficiency, being a good candidate for a real-time implementation.

Abstract
Movement is one of the most important characteristics of glaciers which can cause serious natural disasters. For this reason, monitoring this massive blocks is a crucial task. Synthetic Aperture Radar (SAR) can operate all day in any weather conditions and the images acquired by SAR contain intensity and phase information, which are irreplaceable advantages in monitoring the surface movement of glaciers. Moreover, a variety of techniques like DInSAR and offset tracking, based on the information of SAR images, could be applied to measure the movement. Sangwang lake, a glacial lake in the Himalayas, has great potentially danger of outburst. Shie glacier is situated at the upstream of the Sangwang lake. Hence, it is significant to monitor Shie glacier surface movement to assess the risk of outburst. In this paper, 6 high resolution COSMO-SkyMed images spanning from August to December, 2016 are applied with offset tracking technique to estimate the surface movement of Shie glacier. The maximum velocity of Shie glacier surface movement is 51 cm/d, which was observed at the end of glacier tongue, and the velocity is correlated with the change of elevation. Moreover, the glacier surface movement in summer is faster than in winter and the velocity decreases as the local temperature decreases. Based on the above conclusions, the glacier may break off at the end of tongue in the near future. The movement results extracted in this paper also illustrate the advantages of high resolution SAR images in monitoring the surface movement of small glaciers. © Authors 2017.

Abstract
The symmetric/constrained fuzzy power flow (SFPF/CFPF) models are suitable to quantify the adequacy of transmission network in satisfying “reasonable demands for the transmission of electricity” as defined, in the European Directive 2009/72/EC. In this paper, SFPF/CFPF is mainly used to identify the basic repressions (inappropriate definition of reasonable demands) of fuzzy data (generation or load) when the adequacy of a transmission system is assessed. This situation arises essentially in cases where the network configuration does not fully support the requested power specifications. It means that these requests are inadequately formulated and lead to the creation of artificial repression in the results (artificial inadequacy of the transmission system). In this article, it is intended to show how these cases can be identified. For this purpose, the SFPF will be used, which does not consider branch limits. With this study, it is also shown how the reference power flows of the system are obtained in order to identify the congested branches.

Abstract
All Higher Education Institutions play a decisive role in adapting the new courses to the needs of society and the world of work. ICTs widen the possibilities of uses, at a relatively low cost; therefore, additional measures need to be taken in terms of methodologies to implement flexible learning processes, at their own special pace. The possibility of performing real life experiments is essential to consolidate concepts taught in theoretical classes of scientific and technical curricular units. Real labs are seldom available, posing restrictions to learning and experimentation. New internet-based technologies can be used to improve the access to these experiences using laboratories with simulated experiments. This paper aims at presenting the development of a prototype using tools to create virtual learning environments. It uses virtual experimentation to perform laboratory practices and as an alternative tool to meet the needs of access to a Measurement and Instrumentation laboratory. The basis of the project was the creation of a 3D laboratory where all the equipment and its components may be observed and manipulated and virtual experimentation was chosen to facilitate all laboratory practices. A creative tool or authoring tool was used for the development of the program called VEMA -Virtual Electric MAnual. The use of WireFusion 5.0 ® authoring tool and an educational license explain the low cost of construction of the virtual reality (VR) program. This project was developed to demonstrate how a VR desktop prototype may be applied to an engineering curricular unit and also to increase safety and resourcefulness in the use of electrical equipment. From the educational point of view, VEMA should not be seen as a substitute of traditional teaching methods, but only as a complementary resource that can meaningfully improve students' understanding and motivation. The main objective of VEMA was to develop a prototype of a VR simulator to demonstrate the potential benefits of combining virtual reality to improve learning and measurement of electrical circuits in a specific controlled environment. No browser plug-in is required to show the presentations. © 2017 IEEE.