half-value layer

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half-value layer

[′haf ¦val·yü ‚lā·ər]
(physics)
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Ramos HVL, Simoes MJ, Pontes PAL, Neves LR, Barbosa LHF, Biase NG, Oshima CTS.
4 Other 3 None 5 Figure 4: Risk Profile Line Identification Pipeline Type Record Line Product Product Station Number Name Type Description Name Asset HCA Type 2148 000001 Line 2 HVL Propane Pipe Could Affect 000002 Line 2 HVL Propane Station B Pump Could Affect 000003 Line 2 HVL Propane Station B Valve Could Affect 000004 line 2 HVL Propane Station B Pipe Could Affect 000005 Line 2 HVL Propane Station B Tank Could Affect Include Threats Record In Risk Avenge Total [E.
2001) shows that HVLs are able to change significantly the ozone concentration within the atmospheric surface layer over Europe and other regions where the HVL density is rather high.
Variables affecting the mean glandular dose are the type of image receptor used, the x-ray beam energy (half-value layer, or HVL, and kVp), the degree of breast compression, the breast's size and its adiposity.
VL) contain nodes that are involved in at least one violation either hard or soft constraint and the second tabu list is called HVL that contain only nodes that are involved in hard constraints.
The ability to supply motors with custom engineered shafts and wide voltage bandwidth has enabled AEG Electric Motors to satisfy the requirements of Haigh Engineering of Ross-on-Wye for its HVL 'Filtramatic' macerators, which are used around the world with extensive use in both marine and offshore markets.