He has a lazy eye that doctors are treating with the old-fashioned method of blanking out one lens for the good eye, forcing the lazy one to work harder.
A new method of optimal blank shape design using the initial nodal velocity (INOV) has been proposed for the drawings of arbitrary shaped cups.
Through the investigation, the proposed systematic method of optimal blank design is found to be very effective in the design of a deep drawing process.
Quality control was monitored using method blanks, PUF blanks, field blanks, lab matrix spikes for all congeners, and surrogate spikes.
However, thanks to the development of molecular typing methods, the presence of blank alleles within HLA data has been greatly reduced (frequencies are generally observed well below 5%) compared to serological typings, where blank could reach frequencies higher than 30% for the HLA-Cw locus [38], [39].
For each batch of 60 samples, four method blanks, a spiked blank, and a pair of matrix-spiked sample/duplicates were processed.
For each batch of 10 samples, 3 method blanks—a spiked blank and a pair of matrix-spiked samples (spiked with 100 ng each of target phthalates) per duplicate were processed.
Quality control was monitored by the use of method blanks, spikes of bovine serum, duplicates of bovine serum spikes or sample duplicates, surrogate spikes, and confirmation of the analytes by second column or GC-MS, as appropriate.
MS was operated in scan mode (50 550 m/ z) for qualitative analysis, testing the method specificity, screening of blanks, and confirmation of compound identity.
Surprisingly, only a few studies reported the evaluation of process blanks, indicating a need to improve and standardize methods for blank preparation and biotesting.
