Multiphysics Modelling of Flow-Driven Piezoelectric Energy Harvesters

Poster (2021, May 21)

Multiple Access Techniques for Next Generation Wireless: Recent Advances and Future Perspectives

in EAI Endorsed Transactions on Wireless Spectrum (2016), 2(7),

The advances in multiple access techniques has been one of the key drivers in moving from one cellular generation to another. Starting from the first generation, several multiple access techniques have ... [more ▼]

The advances in multiple access techniques has been one of the key drivers in moving from one cellular generation to another. Starting from the first generation, several multiple access techniques have been explored in different generations and various emerging multiplexing/multiple access techniques are being investigated for the next generation of cellular networks. In this context, this paper first provides a detailed review on the existing Space Division Multiple Access (SDMA) related works. Subsequently, it highlights the main features and the drawbacks of various existing and emerging multiplexing/multiple access techniques. Finally, we propose a novel concept of clustered orthogonal signature division multiple access for the next generation of cellular networks. The proposed concept envisions to employ joint antenna coding in order to enhance the orthogonality of SDMA beams with the objective of enhancing the spectral efficiency of future cellular networks. [less ▲]

Multiple child deprivation in Romania

in 25 Years since the Romanian Revolution (25 jaar Roemeense revolutie) (2014)

Multiple Cracks Interactions in Stress Corrosion Cracking: In Situ Observation by Digital Image Correlation and Phase Field Modeling

in Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors (2018)

Multiple edges in M. Kontsevich's graph complexes and computations of the dimensions and Euler characteristics

in Advances in Mathematics (2015), 272

We study the cohomology of complexes of ordinary (non- decorated) graphs, introduced by M. Kontsevich. We construct spectral sequences converging to zero whose first page contains the graph cohomology. In ... [more ▼]

We study the cohomology of complexes of ordinary (non- decorated) graphs, introduced by M. Kontsevich. We construct spectral sequences converging to zero whose first page contains the graph cohomology. In particular, these spectral sequences may be used to show the existence of an infinite series of previously unknown and provably non-trivial cohomology classes, and put constraints on the structure of the graph cohomology as a whole. [less ▲]

The Multiple Geographies of Early Childhood Education and Care: An Ethnographic Approach to the Places and Spaces of Young Children’s Care Arrangements

in Bollig, Sabine; Honig, Michael-Sebastian; Neumann, Sascha (Eds.) et al MultiPluriTrans in Educational Ethnography. Approaching the Multimodality, Plurality and Translocality of Educational Realities (2015)

This contribution demonstrates how child-centred research on day-care childhoods could benefit from ethnographic research strategies that include a wider and more fluid understanding of the field. This ... [more ▼]

This contribution demonstrates how child-centred research on day-care childhoods could benefit from ethnographic research strategies that include a wider and more fluid understanding of the field. This topic is discussed on the basis of the on-going research project CHILD that is currently conducted at the University of Luxembourg. The article presents the context and objectives of the study and shows how the research questions are transformed into a multi-sited research design that investigates the genesis, conditions, and everyday conduct of the care arrangements for 2-4-year-olds as an interplay of certain time-space geographies of early childhood education and care. Those time-space geographies represent a methodical and analytical construct, which helps to reveal how child-care policies, local structures and affordances, parents’ beliefs and choices, institutional orders and children’s activities interplay and assemble in the everyday making of their day-care childhoods. This particular assemblage is how we understand care arrangements. How this conception on practiced care arrangements is worked out gets demonstrated on examples from the on-going field research. According to results from three ethnographic case studies, the diverse places and spaces which come into play in the localised interconnections of day-care practices of 2-4-year-olds are highlighted and discussed with regard to the question of how such multi-sited ethnographic research strategies can help to overcome the traditional notion of children as ‘colonisers of small places’. [less ▲]

Multiple Goals and Motivation at School: The Theory of Motivational Action Conflicts

in ZEITSCHRIFT FUR PADAGOGISCHE PSYCHOLOGIE (2017), 31(1), 69-85

This article presents the research program "Theory of Motivational Action Conflicts", which addresses situations in which persons aim at achieving more than one important goal. The theory was studied with ... [more ▼]

This article presents the research program "Theory of Motivational Action Conflicts", which addresses situations in which persons aim at achieving more than one important goal. The theory was studied with students striving simultaneously to reach academic and nonacademic goals. When students experience goal conflicts, incentives attached to options not chosen may interfere with the execution of the chosen action. Cross-sectional, longitudinal, experience-sampling, and experimental studies show that, depending on its strength, motivational interference can impair the achievements as well as the well-being of students. The article provides hints on how students can minimize goal conflicts in order to experience a better balance across developmental contexts. [less ▲]

Multiple integral representation for functionals of Dirichlet processes

in Bernoulli (2008), 14(1), 91--124

The Multiple Languages In/Of Education: An Ethnographic Research on Language Practices and Institutionalisation in Luxembourgian Early Childcare

Presentation (2014, May 15)

Multiple levels of letter representation in written spelling: evidence from a single case of dysgraphia with multiple deficits.

in Behavioural neurology (2005), 16(2-3), 119-44

In this paper, we report a detailed analysis of the impaired performance of a dysgraphic individual, AD, who produced similar rates of letter-level errors in written spelling, oral spelling, and typing ... [more ▼]

In this paper, we report a detailed analysis of the impaired performance of a dysgraphic individual, AD, who produced similar rates of letter-level errors in written spelling, oral spelling, and typing. We found that the distribution of various letter error types displayed a distinct pattern in written spelling on the one hand and in oral spelling and typing on the other. In particular, noncontextual letter substitution errors (i.e., errors in which the erroneous letter that replaces the target letter does not occur elsewhere within the word) were virtually absent in oral spelling and typing and mainly found in written spelling. In contrast, letter deletion errors and multiple-letter errors were typically found in oral spelling and very exceptional in written spelling. Only contextual letter substitution errors (i.e., errors in which the erroneous letter that replaces the target letter is identical to a letter occurring earlier or later in the word) were found in similar proportions in the three tasks. We argue that these contrasting patterns of letter error distribution result from damage to two distinct levels of letter representation and processing within the spelling system, namely, the amodal graphemic representation held in the graphemic buffer and the letter form representation computed by subsequent writing-specific processes. Then, we examined the relationship between error and target in the letter substitution errors produced in written and oral spelling and found evidence that distinct types of letter representation are processed at each of the hypothetized levels of damage: symbolic letter representation at the graphemic level and representation of the component graphic strokes at the letter form processing level. [less ▲]