Results 11 to 20 of about 1,026,341 (311)

Material limitations on the detection limit in refractometry [PDF]

open access: yesSensors, 2009
We discuss the detection limit for refractometric sensors relying on high-Q optical cavities and show that the ultimate classical detection limit is given by min {Δn} ≳ η with n + iη being the complex refractive index of the material under refractometric
Pedro Nunes   +11 more
core   +7 more sources

Effect of UV Scattering on Detection Limit of SO2 Cameras

open access: yesRemote Sensing, 2023
SO2 ultraviolet (UV) camera technology has been successfully applied to the accurate imaging detection of pollutant gas concentration; however, the actual detection ability of this technology has not been intensively studied, especially the detection ...
Kuijun Wu   +6 more
doaj   +2 more sources

The compositional meaning of a detection limit [PDF]

open access: yes, 2011
Conclusions The chemical interpretation of the detection limit and its stochastic model counterpart has thus different consequences for the statistical analysis than we would expect from the word by word interpretation of “below detection limit” as a ...
van den Boogaart, Karl Gerald   +4 more
core   +7 more sources

Information limits for detecting a subhypergraph [PDF]

open access: yesStat, 2021
We consider the problem of recovering a subhypergraph based on an observed adjacency tensor corresponding to a uniform hypergraph. The uniform hypergraph is assumed to contain a subset of vertices called as subhypergraph. The edges restricted to the subhypergraph are assumed to follow a different probability distribution than other edges.
Mingao Yuan, Zuofeng Shang
openaire   +2 more sources

Capacity limits in face detection [PDF]

open access: yesCognition, 2022
Face detection is a prerequisite for further face processing, such as extracting identity or semantic information. Those later processes appear to be subject to strict capacity limits, but the location of the bottleneck is unclear. In particular, it is not known whether the bottleneck occurs before or after face detection.
Qarooni, Rana; id_orcid 0000-0001-9219-8760   +3 more
openaire   +2 more sources

How Low Can It Go? ATR-FTIR Characterization of Compounds Isolated from Ginger at the Nanogram Level

open access: yesEngineering Proceedings, 2023
This proof-of-concept study demonstrated the potential of attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy for the structural characterization of natural products when only very small quantities of the target compound are ...
Joel B. Johnson   +3 more
doaj   +1 more source

Stochastic Time Response and Ultimate Noise Performance of Adsorption-Based Microfluidic Biosensors

open access: yesBiosensors, 2021
In order to improve the interpretation of measurement results and to achieve the optimal performance of microfluidic biosensors, advanced mathematical models of their time response and noise are needed. The random nature of adsorption–desorption and mass
Ivana Jokić   +5 more
doaj   +1 more source

Response-based multiple imputation method for minimizing the impact of covariate detection limit in logistic regression

open access: yes, 2021
Presence of detection limit (DL) in covariates causes inflated bias and inaccurate mean squared error to the estimators of the regression parameters.
Hossain, Shahadut   +2 more
core   +1 more source

Limit-of-detection for IS2404 qPCR from swabbed pigskin.

open access: yes, 2023
Plot showing Ct values for two independent M. ulcerans 10-fold dilution series used to inoculate fresh pigskin. The dotted line represents the limit-of-detection (Ct 35). Each dilution was tested by IS2404 qPCR in technical triplicates.
Jessica L. Porter (7865246)   +3 more
core   +1 more source

Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol

open access: yesBiosensors, 2022
Cr-MOF nanoparticles were synthesized by a simple hydrothermal method, and their morphology and structure were characterized by SEM, TEM, and XRD techniques.
Chao Hu   +3 more
doaj   +1 more source

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