In determining sample size for psychometric testing, the number of items contained in the target instrument, sensitivity of other instruments being used, and data analysis techniques were considered.
By comprehensive radiance calibrations with a blackbody source the window's emissivity and transmissivity are determined and the dependence of the instrument sensitivity on the detector temperature is characterized.
Using these instruments, a sensitivity of 85 % and specificity of 80%% was reached, 29%% of the screening sample was screen positive.
As above, fluorophore concentrations were in arbitrary units so that this allowed comparison of the relative sensitivity of each HDS data mix only (as opposed to, for example, quantification of instrument sensitivity in μmol/L of Alexafluor-680).
Lack of instrument sensitivity and the influence of concrete moisture are proposed as two key reasons for this phenomenon.
Fig. 1 Instrument detection sensitivity of the ATP assay shown as a calibration (or standard) curve.
The blood was transferred to the laboratory at SRMC, and blood lead was measured using Anodic Stripping Voltammetry by a LeadCare Analyzer (ESA Laboratories, Chelmsford, MA, USA), which is a well-validated field instrument with sensitivity of 1 μg/dL blood lead (Shannon and Rifai 1997).
The experimental evaluation indicated that reducing the declustering field showed essentially no gain in polymer coverage and resulted in further losses of instrument sensitivity, confirming that the heated capillary temperature effectively defined the gentleness of the interface under such conditions.
With limited systematic research carried out in this area to date, the aim if this study was to investigate the influence of instrument sensitivity and moisture condition on air permeability measurements for both normal concrete and HPC.
These can be used as an indication of instrument sensitivity.
