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CURRENT SMOKE DETECTION TECHNOLOGIES SUFFER FROM SIGNIFICANT FALSE ALARM RATES. THESE PROBLEMS ARE CURRENTLY BEING ADDRESSED BY REDUCING THE SENSITIVITY OF EXISTING PARTICULATE DETECTORS. IN THIS WORK, THE FEASIBILITY OF A COMBINED PARTICULATE AND CARBON MONOXIDE DETECTOR WILL BE EVALUATED. THE USE OF MULTIPLE FIRE SIGNATURES HAS THE POTENTIAL FOR REDUCING THE FALSE ALARM PROBLEMS WHILE INCREASING ...

The study of "deterministically chaotic" systems is embryonic and its application to real-time simulation and control is just beginning. A process is determininistically chaotic, as opposed to random if its current value depends on its previous values, but its current value is not predictable. System which have significant non-linear aspects exhibit some degree of chaotic behaviour and in large, c ...

Efficiently managing the history of a time-evolving system is one of the central problems in many database environments, like database systems that incorporate versioning, or object oriented databases that implicitly or explicitly maintain the history of persistent objects. In this proposal, we propose algorithms that recorstruct past states of an evolving system for two general cases, i.e., when ...

THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST) HAS UNDERTAKEN AN EFFORT TO PROVIDE SOLID STANDARDS AND ALGORITHMS FOR THE STANDARDIZATION OF NEAR-INFRARED SPECTROPHOTOMETERS. THIS EFFORT, COUPLED WITH RECENT ADVANCES IN MATHEMATICAL ALGORITHMS FOR REGRESSION MODEL TRANSFER, HAS CREATED AN OPPORTUNITY FOR THE DEVELOPMENT OF STANDARD CALIBRATION MODELS. THE PROPOSED RESEARCH FOCUSES ON TH ...

Link Plux Corporation and TRW, Inc. have recently been successful in implementing miniaturized linked compander technology using digital signal processing (DSP). The current product removes noise from voice transmissions across HF SSB radio (documented US Government testing measures 22 dB average improvement in S/N, with 47 dB maximum). Current proven products apply to AM/SSB signals at MF, HF, VH ...

The objective of this project is to develop the concept of a visualization subsystem to aid in the interpretation of multi-variate seismic discrimination analysis. Novel visualization techniques will be explored to identify tools capable of aiding in the discrimination of different types of seismic events, particularly those detected at regional distances out to 2,000 km. Such techniques will incl ...