This paper considers a set of presupposition triggers including focus, questions, ‘contrastive’ statives, and an ‘affirmation/negation’ construction involving and not, where presuppositions are cancelable. It is proposed that these constructions, rather than having strict semantic presuppositions, have representations involving alternative sets in the sense of alternative semantics of questions...

In this paper, a methodology to automate and standardize the identification of rainfall intensity–duration thresholds for landslides triggering is presented. A newly developed software called MaCumBA (MAssive CUMulative Brisk Analyzer) can be used to analyze rain-gauge records, extract the intensities (I) and durations (D) of the rainstorms associated with the initiation of landslides, plot the...

This report provides a summary of the Pulser In a Chip 9000-Discretionary LDRD. The program began in January of 1997 and concluded in September of 1997. The over-arching goal of this LDRD is to study whether laser diode triggered photoconductive semiconductor switches (PCSS) can be used to activate electro-optic devices such as Q-switches and Pockels cells and to study possible laser diode/ swi...

Research suggests that a Motorcycle Autonomous Emergency Braking system (MAEB) could influence 25% of the crashes involving powered two wheelers (PTWs). By automatically slowing down a host PTW of up to 10 km/h in inevitable collision scenarios, MAEB could potentially mitigate the crash severity for the riders. The feasibility of automatic decelerations of motorcycles was shown via field trials...

A novel method developed to increase the temporal resolution of x-ray streak cameras is described. The method is analogous to the time-correlated single-photon-counting technique, which is commonly used in atomic physics. By use of short-pulse x-ray radiation from a laser-produced plasma, generated by an ultrafast laser, it is shown that a standard x-ray streak camera with a nominal temporal re...

This paper examines a metaphonic chain shift in Servigliano (Italo-Romance), in which /E, O/ raise to [e, o] and /e, o/ raise to [i, u] when stressed and followed by inflectional /i, u/. The paper also explores pre-tonic metaphony, whereby /E, O/ raise all the way up to [i, u] when followed by a stressed high vowel. First, an analysis of the data is developed using Optimality Theory with Candid...