This paper proposes a performance metrics and a real-time scheduling algorithm based on imprecise computation workload model for delivery of scalable streaming media, which can be adapted to network status and QoS requirement over the best-effort Internet. The scheduling task of a scalable streaming media is partitioned into two subtasks: the mandatory subtask for the base layer and the optiona...

A time-domain algorithm has been described for carrier frequency estimation in Fixed Broadband Wireless Access OFDM systems. It has been evaluated in two different radio frequency bands, in the 5.8 GHz band under Non Light of Sight (NLOS) conditions and in the 10.5 GHz band under LOS conditions. It makes use of a novel preamble structure that gives an averaging enhancement and allows carrier fr...

This paper highlights the development, enhancement and use of the MSC/PATRAN "Preference" at Sandia. This preference integrates MSC/PATRAN with the EXODUS II database. The development of the preference demonstrates the flexibility of MSC/PATRAN's open architecture. There were some interesting challenges not normally encountered when integrating MSC/PATRAN with commercial FEA codes. Also, as the...

The Huber Markov Random Field (H-MRF) has been proposed for image resolution enhancement as a preferable alternative to Gaussian Random Markov Fields (G-MRF) for its ability to preserve discontinuities in the image. However, its performance relies on a good choice of a regularisation parameter. While automating this choice has been successfully tackled for G-MRF, the more sophisticated form of ...

Complex qualitative research projects often require not only adjustments during project implementation, but also adaptation of the methodology and research design. The paper discusses the enhancement of the structured-case approach to include action research style interventions within structured-case cycles. An application of this approach is presented based on a study of a Community of Practic...

In this paper, a feature-point-driven expression editing and synthesis framework is proposed. While the extensively used blend shape methods suffer detail losing during image blending, the proposed multi-layer method can retain the flexibility and variety of geometry editing and preserve detail features as well. For low-frequency sub-bands, optimization-based blend shape is presented for large-...

Time-domain eoders use long-term predietors to exploit the quasiperiodie strueture of voiced speech. However, one major drawbaek with classical predictors is the restriction of the delay to integer values, reducing the performance especially when the pitch period is short. This paper presents an extension of the prediction technique to encompass non-integer delays enabling more aeeurate represe...

A coarse-grained computational model is used to investigate the effect of a fluid membrane on patchy-particle assembly into biologically relevant structures motivated by viral cores and clathrin. For cores, we demonstrate a nonmonotonic dependence of the promotion of assembly on membrane stiffness. If the membrane is significantly deformable, cores are enveloped in buds, although this effect is...

In this chapter an enhancement of the structured-case approach, including action research-style interventions within structured-case cycles, is discussed. An exemplar of this approach is provided through a knowledge management study. The major benefits of this approach include the flexibility of the resulting research process to include cycles both with and without action interventions, its cap...

In this paper, attributes of chalcogenide glass (ChG) based integrated devices are discussed in detail, including origins of optical loss and processing steps used to reduce their contributions to optical component performance. Specifically, efforts to reduce loss and tailor optical characteristics of planar devices utilizing solution-based glass processing and thermal reflow techniques are pre...