We revisit classical sieves for computing primes and analyze their performance in the external-memory model. Most prior sieves are analyzed in the RAM model, where the focus is on minimizing both the total number of operations and the size of the working set. The hope is that if the working set fits in RAM, then the sieve will have good I/O performance, though such an outcome is by no means gua...

The delayed delivery of the AIRBUS A380© demonstrates the challenges to be faced in the field of cross-company collaboration today. On the one hand, available CWE platforms are used insufficiently. On the other hand, they do not yet support collaboration in a completely adequate way. This paper illustrates the current state of CWE practice by way of a sample company, its internal and external c...

In this paper I describe a implementation procedure for generating controllers to guarantee safety constraints for controllable discrete-time linear systems. The first two sections are a summary of the work of [6]. The contribution of this paper is the discussion of the limitations of this method and future research directions. We omit any discussion of complexity and focus instead on functiona...

Public-Key-Infrastrukturen sind von zentraler Bedeutung für eine sichere elektronische Kommunikation in offenen Netzen. PublicKey-Infrastrukturen bergen aber für die auf ihnen basierenden Anwendungen auch Risiken, weil die Verfahren der PKIs zu Grunde liegenden Public-Key-Kryptografie nicht beweisbar sicher sind. Zur Lösung der möglichen Probleme – Verlust der Verfügbarkeit von PKIAnwendungen, ...

Process safety might be considered as the most important area to improve several aspects in the process industry design. Ways of dealing with hazards include means to either control them or totally remove them. Both control and removal ways can be applied during the design stage to produce inherently safer designs. There exist several practical examples where issues related to inherently safer ...

OBJECTIVES Living in substandard housing may be one factor that increases the risk of fire and burn injuries in low-income urban environments. The purposes of this study are to (1) describe the frequency and characteristics of substandard housing in urban homes with young children and (2) explore the hypothesis that better housing quality is associated with a greater likelihood of having workin...

Multiword expressions (MWEs) are linguistic objects containing two or more words and showing idiosyncratic behavior at different levels. Treebanks with annotated MWEs enable studies of such properties, as well as training and evaluation of MWE-aware parsers. However, few treebanks contain full-fledged MWE annotations. We show how this gap can be bridged in Polish by projecting 3 MWE resources o...