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This paper describes, from a systems perspective, some of the considerations involved in the development of an intelligent structural health monitoring system for an aerospace vehicle. It also outlines the design of an experimental test-bed and concept demonstrator system that is currently under development.
Structural health monitoring (SHM) uses an array of sensors to continuously monitor a structure to provide an early indication of problems such as damage to the structure from fatigue, corrosion or impact. The use of such a system enables maintenance costs to be reduced, and new structures can be designed to be lighter and more efficient. CSIRO has… (More)
We developed and evaluated three qPCR assays for detecting environmental DNA from northern pike (Esox lucius). The assays target the cytochrome oxidase 1 (EluCOI), control region (EluCR), and cytochrome b (EluCytB) genes of the mitochondrial DNA. Target specificity, assessed using the fluorescence signal (at 45 cycles) to noise (at 1 cycle) ratio (S/N),… (More)
2003. Uncertainty reduction and characterization for complex environmental fate and transport models: An empirical Bayesian framework incorporating the stochastic response surface method. Assessing ecological risks at US Department of Energy facilities using methods borrowed from landscape ecology and habitat suitability analysis. Part I. Analysis of… (More)
Disclaimer: The use of trade names of commercial products in this report does not constitute endorsement or recommendation for use by the federal government. The Alaska Region Fisheries Program of the U.S. Fish and Wildlife Service conducts fisheries monitoring and population assessment studies throughout many areas of Alaska. Dedicated professional staff… (More)
Error-tolerant likelihood-based match calling presents a promising technique to accurately identify recapture events in genetic mark-recapture studies by combining probabilities of latent genotypes and probabilities of observed genotypes, which may contain genotyping errors. Combined with clustering algorithms to group samples into sets of recaptures based… (More)
The endangered fountain darter Etheostoma fonticola is found only in the Comal and San Marcos rivers in the Guadalupe River basin in central Texas, USA. Comal River fountain darters were believed to be extirpated following a severe drought in the 1950s and were reintroduced in the early 1970s using 457 darters from the San Marcos River. In this study we… (More)