Results 301 to 310 of about 938,444 (341)

Uncertainty quantification of limit-cycle oscillations

Journal of Computational Physics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Beran, Philip S., Pettit, Chris L., Millman, Daniel R.   +2 more
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Estimation of the uncertainty of the quantification limit

Spectrochimica Acta Part B: Atomic Spectroscopy, 2014
Abstract A method to compute the standard deviation of detection and quantification limits based on an easy equation was proposed. The results were compared to those coming from the rigorously theoretical approach proposed in the literature which required quite complex computations.
BADOCCO, DENIS, LAVAGNINI, IRMA, MONDIN, ANDREA, PASTORE, PAOLO   +3 more
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Quantification of Cardiac Jets:

Echocardiography, 1994
Jet flows are consequences of many cardiac lesions. With the advent of color Doppler flow mapping, these jet flows can be visualized noninvasively. Currently, an intense effort is underway to quantify cardiac jet flows as a means to assess the severity of jet forming lesions. Two techniques, PISA and jet centerline decay, have been suggested as methods
R Y, Grimes, A, Burleson, R A, Levine, A P, Yoganathan   +3 more
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How Well Quantified Is the Limit of Quantification?

Epidemiology, 2010
Raw data on the relationship between known and measured values of an analyte are collected and analyzed to determine the limit of quantification (LOQ) of an assay. In most LOQ problems, the researcher is given an observed value for the marker of interest if this value is greater than the LOQ, and a missing value (
Ying, Guo, Ofer, Harel, Roderick J, Little   +2 more
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The Limits of Quantification

SSRN Electronic Journal, 2014
The problem of nonquantifiability is a recurrent one in both public policy and ordinary life. Much of the time, we cannot quantify the benefits of potential courses of action, or the costs, or both, and we must nonetheless decided whether and how to proceed.
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Performance limits of LWIR gaseous plume quantification

SPIE Proceedings, 2011
The central parameter in the quantification of chemical vapor plumes via remote sensing is the mean concentrationpath length (CL) product, which can lead to estimates of the absolute gas quantity present. The goal of this paper is to derive Cramer-Rao lower bounds on the variance of an unbiased estimator of CL in concert with other parameters of a ...
Steven E. Golowich, Dimitris G. Manolakis   +1 more
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On the limits of infants' quantification of small object arrays

Cognition, 2005
Recent work suggests that infants rely on mechanisms of object-based attention and short-term memory to represent small numbers of objects. Such work shows that infants discriminate arrays containing 1, 2, or 3 objects, but fail with arrays greater than 3 [Feigenson, L., & Carey, S. (2003).
Lisa, Feigenson, Susan, Carey
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Determining limit of quantification in microbiology

EJPPS EUROPEAN JOURNAL OF PARENTERAL AND PHARMACEUTICAL SCIENCES
The determination of limit of quantification (LOQ) is one of the tasks specified in the validation process of a microbiological method. So far a detailed procedure for doing it is still lacking. Given the LOD (limit of detection), or data for estimating the LOD, we propose a procedure for determining the LOQ based on a Poisson confidence interval and ...
Jianping Jiang, E Albert, null Parker
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Overcoming the Limits of Quantification by Visualization

Biological Theory, 2015
Biological sciences have strived to adopt the conceptual framework of physics and have become increasingly quantitatively oriented, aiming to refute the assertion that biology appears unquantifiable, unpredictable, and messy. But despite all effort, biology is characterized by a paucity of quantitative statements with universal applications ...
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