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This paper aims to investigate the impact of combining grain-oriented electrical steel (GOES) grades on specific iron losses and the flux density distribution within a single-phase magnetic core.

This paper presents the results of finite-element method (FEM) simulations investigating the impact of mixing two different GOES grades on losses of a single-phase magnetic core. The authors used different models: a 3D model with a highly detailed geometry including both saturation and anisotropy, as well as a simplified 2D model to save computation time. The behavior of the flux distribution in the mixed magnetic core is analyzed. Finally, the results from the numerical simulations are compared with experimental results.

The specific iron losses of a mixed magnetic core exhibit a nonlinear decrease with respect to the GOES grade with the lowest losses. Analyzing the magnetic core behavior using 2D and 3D FEM shows that the rolling direction of the GOES grades plays a critical role on the nonlinearity variation of the specific losses.

The novelty of this research lies in achieving an optimum trade-off between the manufacturing cost and the core efficiency by combining conventional and high-performance GOES grade in a single-phase magnetic core.

Stein Rokkan (1921–1979) gave this lecture in Paris, 4th December 1976. Comparative Social Research here publishes the first English language translation of Rokkan's manuscript for the lecture, which was given in French. The lecture was earlier only available in German (published 1980) and Norwegian (published 1921) translations. The lecture presents the sequence of models that Rokkan developed for his Europe-project aiming to explain the variations between 16 Western European democracies with reference to rights, party systems and systems alternatives. It is the only extensive intellectual autobiography that Rokkan ever wrote.

This exploratory research aims to identify the types of social networks established by German and French expatriates.

The authors use the concepts of social capital and social networks, as well as the societal and cultural approaches, to investigate the way expatriates develop their social networks. The authors' empirical study is based on 40 semi-structured interviews conducted with German and French expatriates.

The authors' findings show that German expatriates mainly establish professional networks, whereas their French counterparts also focus on personal networks. They further indicate that managing social capital lies within the individual responsibility of German expatriates, whereas it is part of higher education institutions in France.

The authors highlight the way German and French expatriates manage their social networks and provide novel insights into the role played by higher education systems and the cultural characteristics of their home country context.

This aim of this study is to identify the ways of helping public authorities bring about change to environmentally sustainable household food practices.

The authors identified the practices involved in this concept from the consumer perspective and measured their diffusion among French households. The analyses were conducted following two successive data collection campaigns comprising 571 and 501 respondents in France. The methodology involved two complementary scaling techniques: factor analysis and item response theory.

The results show that consumers understand sustainable food through five food practices: buying and cooking products with sustainable attributes, anti-waste storage, self-production, plant protein consumption and anti-waste cooking.

The findings suggest that while at the individual level people appear to have incorporated anti-waste practices into their daily lives, at the household level, there is still work to be done for improving diets and stimulating the production of home-grown food. It is also worth noting that the emerging vision typically involves sustainable foods that are organic, locally grown, seasonal, based on fair trade and packaging-free.