Sentence examples for mass retained in from inspiring English sources

For an ingested fibrous mass retained in a normal esophagus and than calcified there are no sufficient clinical and physiological arguments.

However, we did not consider mass retained in this region because a large portion of the particles deposited is assumed to be cleared within 24 48 hr by action of the mucociliary escalator (U.S. EPA 2009).

We used the maximum reported NM aerosol concentrations (mass per cubic meter of air) as an input for the MPPD model to estimate deposition, clearance, and mass retained in the alveolar region of the human lung.

Methods: We reviewed published ENM concentrations measured in air in manufacturing and R&D (research and development) laboratories to identify input levels for estimating ENM mass retained in the human lung using the multiple-path particle dosimetry (MPPD) model.

Our article described how to apply sparse NM exposure information from manufacturing and R&D (research and development) settings and relevant particle dosimetry model inputs, based on a report of the International Commission on Radiological Protection (1994), to estimate NM mass retained in the alveolar region of the human lung.

The MPPD input parameters determined to be significant were evaluated further to calculate mass retained in the alveolar region per alveolar surface area, based on two exposure durations: a short-term exposure duration of 24 hr and a long-term occupational lifetime exposure.

Fractions of cells retained (Fi) in a column segment as a function of αi were fitted with a power-law distribution from which the minimum sticking efficiency defined as the sticking efficiency of 0.001% bacteria fraction of the total input mass retained that results in a 5 log removal were extrapolated.

Results of the sensitivity analysis [alveolar mass retained, percentage change in model output and input, and sensitivity percentage (output percentage change by input percentage change)] are presented in Table 3.

The age-specific symmetric lung model for a 3-year-old child resulted in lower mass retained at 0.16 mg because of lower intake (functional residual capacity, upper respiratory tract volume, and VT) compared with the adult male default baseline condition.

Because the MPPD model uses a low estimate of alveolar surface area, a more realistic estimate would result in lower alveolar mass retained per surface area (by approximately one order of magnitude), which would correspond to a lower in vitro concentration for a given exposure duration.

Additionally, aspect ratios from 4 to 1,000 were evaluated with a length GSD of 1.0 (as a conservative estimate) and a density of 2. For this sensitivity analysis, if the alveolar mass retained using the new setting resulted in a percentage change ≥ 10% of the baseline amount, the parameter was considered to be significant and was evaluated further.