The success of web applications is constrained by two key features: usability and fast evolution. Current web engineering approaches follow a "unified" development style which tends to be unsuitable for applications that needs to evolve fast. In this paper, we show how to address usability requirements in an agile test/model driven web engineering method. Usability requirements are contemplated...

The Virtual Organizations paradigm is gaining a growing importance in manufacturing as an instrument to help companies face the challenges of fast evolving market conditions. In this context an overview of current trends in areas such as virtual enterprises, industry clusters, virtual communities, remote supervision and virtual laboratories, and required infrastructures is presented. Fast shop-...

We prove that the classic 1994 Taito video game, known as Puzzle Bobble or Bust-a-Move, is NP-complete. Our proof applies to the perfect-information version where the bubble sequence is known in advance, and it uses just three bubble colors. “A girl runs up with somethin’ to prove. So don’t just stand there. Bust a move!” — Young MC [YDD89]

The string theory is a fast moving subject, both physics wise and in the respect of mathematics. In order to keep up with the discipline it is important to move with new ideas which are being stressed. Here I wish to give extracts from new papers of ideas which I have recently found interesting. There are six papers which are involved: I ."Strings formulated directly in 4 dimensions " A. N...

The behavior of Department of Defense (DoD) Command and Control (C2) services is typically embedded in executable code, providing static functionality that is difficult to change. As the complexity and tempo of world events increase, C2 systems must move to a new paradigm that supports the ability to dynamically modify service behavior in complex, changing environments. Separation of service be...

major grid company faced multiple challenges in their grid planning, adapting to the penetration of solar photovoltaics, new sets of regulation, demand side management, and other developments that changed the utility’s context. The grid company wanted to move beyond their current scenario planning and make their grid planning more robust for a wide range of future scenario’s. UMS Group was enga...

Additive manufacturing (AM) has revolutionized the local production realization of highly customizable items. However, high process complexity - inherent to AM operations renders uncertain quality performance final products. Consequently, there is often a need assess unique fabrication capabilities against reoccurring issues instability and end-product inconsistency. Improvement opportunities m...

There is a growing body of knowledge about the behavioral and neural correlates of cross-modal interactions in the perception of motion direction, as well as about the computations that underlie unimodal visual speed processing. Yet, the multisensory contributions to the perception of motion speed remain largely uncharted. Here we show that visual motion information exerts a profound influence ...

We introduce a novel preprocessing-based algorithm to solve the problem of determining the first arc of a shortest path in sparse graphs. Our algorithm achieves query running times on the 100 nanosecond scale, being significantly faster than state-of-the-art first-move oracles from the literature. Space consumption is competitive, due to a compression approach that rearranges rows and columns i...