Density reduction factor

The table which follows gives the values of k (buoyancy reduction factor), which is the correction necessary because of the buoyant effect of the air upon the object weighed the table is computed for air with the density of 0.0012 m is the weight in grams of the object when weighed in air weight of object reduced to in vacuo = m + m/1000. 

Density of object weighed Buoyancy reduction factor, k ... 

Figure 5 Amplitude Reduction Factor and Self-Bias Potential Versus Power Density at 35mTorr...

The most often used unit to quantify the activity of any radioactive material is the curie (Ci). For most level detection applications, source strengths of 100 millicuries (mCi) or less are satisfactory. A 1 Ci source will produce a dose of 1 roentgen (r) at a receiver placed 1 m (3 ft) away from the source for 1 h. Radiation is attenuated when it penetrates liquids or solids, and the rate of attenuation is a function of the density of the material. The higher the density, the more attenuation the shielding material will provide. Figure 3.122 shows how various thicknesses of different materials will attenuate (reduction factor—NB) the intensity of radiation and result in different degrees of attenuation. 

Mg overcoat thickness increases, all of the lines become weaker. Figure 10.3b shows the intensities of the A1 Ka and Hea lines as a function of the product of density and thickness pend of the Mg overcoat. Both lines decrease almost exponentially with respect to the overcoat pend, and, like the fits in Fig. 10.3b, reduction factors of 9.0cm2/mg for Ka and 8.7cm2/mg for He-a are found. Note here that these factors are very close to those obtained for the plastic targets and no significant difference was observed between the conductive and the nonconductive materials in terms of the depth of the hot region deduced from these reduction factors. 

Let us investigate the temperature dependence of the vibronic reduction factors C G3/2(I P) with the vibronic coupling with E and T2 vibrations taken into account [C 3/2 (e + t2) problem]. Within the basis set used for the construction of the pfy operators the density matrix for the linear Gm (e + t2) problem in the framework of the approximation, analogous to Eq. (13), is determined by the following relation (Ogurtsov and Kazantseva, 1983) ... 

The formation of (0001) PDs, which were organized in superlatticelike stricture, was observed only in the GaN films grown on PSC substrates. The PD formation seems to be a major factor in TD density reduction in the films. 

Soda and Chihara (1974) have pointed out that in the weak collision limit (x <spectral densities have fixed ratios independent of the type of isotropic molecular motion for each relaxation mechanism. This is a nice rule to know because only one J needs to be calculated from scratch for any given mode of motion and the other J s can be calculated from the first simply by choosing the proper argument, i.e., 0, u), or 2w. These authors also give a useful relation between the reduction factor of the second moment arising from a particular mode of molecular motion to the T minimum due to that same motion. 

Cell density (Cpsi) Geometry of the duct Hydraulic diameter (mm) Theoretical volume reduction factor... 

Vesic (1975) suggested that the above reduction of cp is too conservative. He proposed the following equation for a reduction factor for cohesionless soils that varies with the relative density D ... 

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