black signal

black signal

[′blak ‚sig·nəl]
(communications)
Signal at any point in a facsimile system produced by the scanning of a maximum density area of the subject copy. Also known as black; picture black.
References in periodicals archive ?
Tenders are invited for Procurement Of Mechanical Tool Set,Sports Tracksuits,Spor T-Shirt,Chair,Black Sphere 300Mm Nuc Shapes With Halyard And Black Signal Cone
Scoring instructions were discussed among the reviewers and included the following: (1) MDM2 signals were visualized as a discrete black signal whereas CHR12 signals were detected as a discrete red signal; (2) cases were considered acceptable for evaluation if endogenous MDM2 and CHR12 signals were identified in nontumor cells; (3) 40 nonoverlapping tumor nuclei were to be enumerated per case, recording the number of MDM2 signals and CHR12 signals per tumor nucleus; (4) aneusomy of CHR12 was considered if the average CHR12 copy number per cell was greater than 3; and (5) if a subpopulation of apparent tumor cells was amplified, the tumor cells were scored unselectively to determine the overall MDM2:CHR12 ratio.
This season, football fans can expect big-play performances from several Black signal callers.
Scoring instructions were discussed among the reviewers and included the following: (1) MDM2 signals were visualized as a discrete black signal whereas CHR12 signals were detected as a discrete red signal; (2) cases were considered acceptable for evaluation if endogenous MDM2 and CHR12 signals were identified in non-tumor cells; (3) 40 nonoverlapping tumor nuclei were to be enumerated per case, recording the number of MDM2 signals and CHR12 signals per tumor nucleus; (4) aneusomy of CHR12 was considered if the average CHR12 copy number per cell was greater than 3; and (5) if a subpopulation of apparent tumor cells was amplified, the tumor cells were scored unselectively to determine the overall MDM2: CHR12 ratio.