density ratio

density ratio

[′den·səd·ē ‚rā·shō]
(meteorology)
The ratio of the density of the air at a given altitude to the air density at the same altitude in a standard atmosphere.

density ratio

The ratio of the density of air at a given altitude to the density of the air at sea level under standard conditions.
References in periodicals archive ?
There are further incentives arising from the directive with a two-year limitation programme from the date of issue, wherein residential plots of land with a net area equal to 3,000mA or more having permitted density ratio of 1,40:1.
Moreover, it is one of the few new projects in Cebu City that complies with the Fire Bureau's new building density ratio of 1 pax:4.6 sq m.
The density ratio of these foci was calculated and compared with pre- and postoperative audiometric parameters.
As set forth in the property sale Agreement, WG Land transferred 1.1 million square feet of density ratio to Capital One, but the Agreement imposed an eight-year restriction on Capital One's right to apply for additional density rights from the County.
Considering the peak assignments, therefore, the crystallinity of PE-based coatings can be estimated by the optical density ratio of bands at 1,473 and 1,464 [cm.sup.-1] (i.e., [D.sub.1473]/[D.sub.1464]).
The solid-to-fluid density ratio is defined as [alpha] = [[rho].sub.p]/[[rho].sub.f].
No other variables met the intended p value; clot density ratio (p=0.06), time to needle (p=0.17), TICI (p=0.09), and sex (p=0.09) were not determinant to a better long-term outcome (Table 5).
Density Ratio of [CD163.sup.+] Macrophages to [CD68.sup.+] Macrophages.
To clearly elaborate the aerodynamic characteristics of the lumped flexibility wing, three dimensionless parameters are defined, namely, the Reynolds number Re, density ratio [[rho].sup.*], and frequency ratio [f.sup.*].
We show that the joint coverage probability can be maximized by adjusting eNB density ratio. If UEs are encouraged to associate their data channel with SeNBs, lower density of SeNBs should be deployed to achieve the maximal joint coverage probability.
As an intrinsic instability of the flame, hydrodynamic instability is the most important factors that affect the flame instability, and it can be evaluated by the laminar flame thickness ([l.sub.f]) and density ratio ([sigma]).