TEMPUS: A proposal for international time transfer and precision tracking satellite

Very Long Baseline Interferometry (pulsars), Television relay via satellite, portable clocks, Navigation Technology Satellite, and Loran C are described and compared

A decision-theoretic approach for segmental classification

This paper is concerned with statistical methods for the segmental classification of linear sequence data where the task is to segment and classify the data according to an underlying hidden discrete state sequence. Such analysis is commonplace in the empirical sciences including genomics, finance and speech processing. In particular, we are interested in answering the following question: given data $y$ and a statistical model $\pi(x,y)$ of the hidden states $x$, what should we report as the prediction $\hat{x}$ under the posterior distribution $\pi (x|y)$? That is, how should you make a prediction of the underlying states? We demonstrate that traditional approaches such as reporting the most probable state sequence or most probable set of marginal predictions can give undesirable classification artefacts and offer limited control over the properties of the prediction. We propose a decision theoretic approach using a novel class of Markov loss functions and report $\hat{x}$ via the principle of minimum expected loss (maximum expected utility). We demonstrate that the sequence of minimum expected loss under the Markov loss function can be enumerated exactly using dynamic programming methods and that it offers flexibility and performance improvements over existing techniques. The result is generic and applicable to any probabilistic model on a sequence, such as Hidden Markov models, change point or product partition models.Comment: Published in at http://dx.doi.org/10.1214/13-AOAS657 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org

Crossflow vorticity sensor

A crossflow vorticity sensor for the detection of crossflow vorticity characteristics is described. The sensor is comprised of crossflow sensors which are noninvasively adhered to a swept wing laminar surface either singularly, in multi-element strips, in polar patterns, or in orthogonal patterns. These crossflow sensors are comprised of hot-film sensor elements which operate as a constant temperature anemometer circuit to detect heat transfer rate changes. Accordingly, crossflow vorticity characteristics are determined via cross-correlation. In addition, the crossflow sensors have a thickness which does not exceed a maximum value h in order to avoid contamination of downstream crossflow sensors

Towards a More Inclusive Music Education: Experiences of LGBTQQIAA Students in Music Teacher Education Programs Across Pennsylvania

During the past decade, the field of music education has seen an increase in the amount of scholarship surrounding LGBTQ studies in music teaching and learning. For example, the University of Illinois hosted three symposia for the field of music education dedicated to LGBTQ studies (2010, 2012, 2016), and proceedings from these symposia were published in three separate issues of the of the Bulletin of the Council for Research in Music Education (2011, 2014, 2016). Other notable scholarship has been published in Action, Criticism, and Theory for Music Education (Gould 2005); the Music Educators Journal (Bergonzi, 2009; Carter, 2011; McBride, 2016); the Journal of Research in Music Education (Carter, 2013; Nicholas, 2013); and UPDATE: Applications of Research in Music Education (Garrett, 2012). (excerpt

Improved Method of Determining Metabolic Function

The present invention provides a novel lactate difference imaging (LDI) technique, allowing assessment of the metabolic response to tissue over a period of time. This approach utiliizes lactate change over a time period as an indiactor of viable tissue, and offers benefits in the management and treatment of the effects of many common diseases, in particular stroke

Vibration damping system Patent

Vibration damping system operating in low vacuum environment for spacecraft mechanism

Manufacturing method and performance assessment for variable lead vacuum rotors

In recent years variable lead rotors have been produced, mainly for vacuum applications, involving a multiple pass manufacturing process which is necessarily time-consuming. A faster method of manufacturing such rotors uses a full profiled disc-type milling or grinding tool but involves clearance variations along the length. These effects have been assessed by computer modelling to quantify any disadvantages. The results indicate that the effects on performance are negligible and the profiled disk tool process is suitable for such components