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Articulated robots are widely used in industrial applications owing to their high repeatability accuracy. In terms of new applications such as robot-based inspection systems, the limitation is a lack of pose accuracy. Mostly, robot calibration approaches are used for the improvement of the pose accuracy. Such approaches however require a profound understanding of the determining effects. This paper aims to provide a non-destructive analysis method for the identification and characterisation of non-geometric accuracy effects in relation to the kinematic structure for the purpose of an accuracy enhancement.

The analysis is realised by a non-destructive method for rotational, uncoupled robot axes with the use of a 3D lasertracker. For each robot axis, the lasertracker position data for multiple reflectors are merged with the joint angles given by the robot controller. Based on this, the joint characteristics are determined. Furthermore, the influence of the kinematic structure is investigated.

This paper analyses the influence of the kinematic structure and non-geometric effects on the pose accuracy of standard articulated robots. The provided method is shown for two different industrial robots and presented effects incorporate tilting of the robot, torsional joint stiffness, hysteresis, influence of counter balance systems, as well as wear and damage.

Based on these results, an improved robot model for a better match between the mathematical description and the real robot system can be achieved by characterising non-geometric effects. In addition, wear and damages can be identified without a disassembly of the system.

The presented method for the analysis of non-geometric effects can be used in general for rotational, uncoupled robot axes. Furthermore, the investigated accuracy influencing effects can be taken into account to realise high-accuracy applications.

The purpose of this paper is to analyze the current state of fabrication laboratories (Fab Lab), an international network of digital laboratories, which provides new technological tools for digital manufacturing that can be used from individual users, to small businesses and schools. The aim is to understand similarities and differences of skills, technologies used and customers served among the main European laboratories (Italy, France, Germany, the Netherlands and Spain) and the American ones.

Data from European and American Fab Labs were collected using a questionnaire survey performed on a total sample of n=493 Fab Labs. The administration of the survey took place through e-mail; 73 Fab Labs participated to the survey, reaching a total response rate of 14.81 percent.

The results show that Italian laboratories are characterized by ample space available, but limited capacity for investment in machinery and technology. European Fab Labs are similar to the Italian Fab Labs, while the American ones are more heterogeneous in size. However, a fact that emerges clearly from the results is how American Fab Labs are more important realities than European ones in terms of turnover and investments. They are more similar to businesses with an independent financial support.

The novelty of the study resides in the issue considered and the experimental techniques used. Some qualitative case studies have been developed in the field, but no previous quantitative analyses have been developed on a large sample of Fab Labs, developing comparisons between European and American realities of these digital laboratories.

The purpose of this paper is twofold. First, it attempts to determine the factors that influence the stability of Islamic and conventional banks. Second, it focuses on the relationship between the regulatory capital and bank soundness.

Thus, the authors use the Z-score to assess the stability of Islamic and conventional banks operating in the Middle East and North Africa region over the period 1999 to 2014.

The comparative analysis reveals that Islamic banks seem to be less stable than their conventional peers. With regard to the determinants of bank stability, the findings suggest that the regulatory capital represents the primordial factor that reinforces the soundness of banking systems. The authors also find that bank stability depends on both bank-specific variables as well as macroeconomic and institutional variables. Interestingly, the corruption level turns out to have a significant negative effect on financial strength in the both types of banks.

The authors believe that investigating the relationship between regulatory capital and the failure risk in a comparative study between Islamic and conventional banks deserves a particular attention and looks very interesting because it will allow them to identify the difference between the factors explaining the failure risk of each type of banks. The authors also believe that the analysis of the relationship between corruption and bank stability is very interesting because corruption can be seen as an example of moral hazard which forces Islamic banks to use non-PLS instruments.

A rectangular paint container, the Rolltainer, has won first prize in the packaging industry's annual “Eurostar” prizegiving at the Packintec show in Milan.

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

There are many investigations in design methodologies, but there are also divergences and convergences as there are so many points of view. This study aims to evaluate to corroborate and deepen other researchers’ findings, dissipate divergences and provide directing to future work on the subject from a methodological and convergent perspective.

This study analyzes the previous reviews (about 15 reviews) and based on the consensus and the classifications provided by these authors, a significant sample of research is analyzed in the design for additive manufacturing (DFAM) theme (approximately 80 articles until June of 2017 and approximately 280–300 articles until February of 2019) through descriptive statistics, to corroborate and deepen the findings of other researchers.

Throughout this work, this paper found statistics indicating that the main areas studied are: multiple objective optimizations, execution of the design, general DFAM and DFAM for functional performance. Among the main conclusions: there is a lack of innovation in the products developed with the methodologies, there is a lack of exhaustivity in the methodologies, there are few efforts to include environmental aspects in the methodologies, many of the methods include economic and cost evaluation, but are not very explicit and broad (sustainability evaluation), it is necessary to consider a greater variety of functions, among other conclusions

The novelty in this study is the methodology. It is very objective, comprehensive and quantitative. The starting point is not the case studies nor the qualitative criteria, but the figures and quantities of methodologies. The main contribution of this review article is to guide future work on the subject from a methodological and convergent perspective and this article provides a broad database with articles containing information on many issues to make decisions: design methodology; optimization; processes, selection of parts and materials; cost and product management; mechanical, electrical and thermal properties; health and environmental impact, etc.

Entrepreneurial activity is a phenomenon that increases the economic growth of countries and improves their social welfare. The economic development levels of countries have significant effects on these entrepreneurial activities. This research examines which institutional and macroeconomic variables explain early-stage entrepreneurship activities in developed and developing economies.

The authors conducted panel data analysis on the data from the Global Entrepreneurship Monitor (GEM) and International Monetary Fund (IMF) surveys covering the years 2009–2018.

First, the authors' results reveal that cognitive, normative and regulatory institutions and macroeconomic factors affect early-stage entrepreneurial activity in developed and developing countries differently. Second, the authors' findings indicate that cognitive, normative and regulatory institutions affect early-stage entrepreneurship more positively in developed than developing countries. Finally, the authors' results report that macroeconomic factors are more effective in early-stage entrepreneurial activity in developing countries than in developed countries.

This study provides a better understanding of the components that help explain the differences in entrepreneurship between developed and developing countries regarding institutions and macroeconomic factors. In this way, it contributes to developing entrepreneurship literature with the theoretical achievements of combining institutional theory and macroeconomic indicators with entrepreneurship literature.