Award Data

The recent emergence of the Silicon Drift detector (SDD), for use in Energy Dispersive x-ray Spectroscopy (EDS), has made possible x-ray event streams with input count rates in the range of 1-10 Mcps. Modern digital pulse processors are therefore required to run at fast time constants to achieve reasonable throughput; however, this causes significant coincidence artifacts to appear in the spectrum ...

We propose to evaluate tree dominant semantics for description logic integrity constraints, as well as multiple proposals for adding syntax for integrity constraint axioms, to the Web Ontology Language standard, OWL. Further, we propose to implement a semantics, in the form of a syntax compiler and data set validator, in order to establish the feasibility and utility of such work for the validatio ...

New innovative technology for the visually impaired has been developed by NIST. If commercialized, it would provide refreshable tactile graphical information to the visually impaired, enabling them to compete on a more equal footing in the workplace and the education system.

Under this proposal, Virtual Global, Inc. proposes to work with NIST to develop RBAC-BASED WORKFLOW, a workflow system that will use RBAC in a web services model as a form of middleware that can be "packaged" accessed, configured, and reused by integrating with existing trusted RBAC implementations.

The most practical arrangement for investigating moving fires within a restricted space is to use a high- resolution stand off technique. One such method that fits this description is the use of a staring infrared (IR) sensing device (i.e. imager).

Sepax Technologies, Inc. has identified a new type of anoin-exchange resin which separates single-wall carbon nanotubes (SWCNTs) with >80% recovery yield and resolves in a single pass the chiral tubes of (6,5) well from commercial SWCNT starting materials by Chromatography. Improvement and scale up of the targeted resin production will facilitate the separation of chiral nanotubes for the academic ...

This Phase 1 SBIR project aims to develop a frequency stabilized laser diode system suitable for application in optical metrology and in displacement measurement. The compact design of the semiconductor laser lends itself to many applications where a coherent light source is required, but space is at a premium. Some fields, such as precision optical metrology require a coherent light source whose ...