diameter group

diameter group

[dī′am·əd·ər ‚grüp]
(mechanical engineering)
A dimensionless group, used in the study of flow machines such as turbines and pumps, equal to the fourth root of pressure number 2 divided by the square root of the delivery number.
References in periodicals archive ?
Warren Green, P.E., was promoted to vice president and business group director of LAN's Infrastructure Large Diameter Group, where he will oversee and coordinate business development efforts, production and operations.
Each tree was cut and delimbed with a chainsaw, and disc specimens were cut from a sample of each diameter group as described below.
A subset of discs was selected from each diameter group to determine the bark share: 10 trees from Group 1, 5 trees from Group 2, and 3 trees from Group 3.
Figure 3 presents the correlation between bark share (y axis) and sample point of trees (x axis; distance from cut [m]) by diameter group. The axial position in trees has strong correlation to the bark share.
Oocytes were washed in 4 drops of TCM-HEPES [modified TCM199; (GIBCO BRL, 31100-27, Grand Island, NY, USA) with 5.95mg/mL HEPES (SIGMA, H7006), 0.025mg/mL sodium pyruvate (SIGMA, P4562), 2.2 mg/mL NaHC[0.sub.3] (SIGMA, S5761) and 10% Estrous Mare's Serum (EMS; Embryolab/UFSM, Santa Maria, RS, Brazil)] for the control group or 20% FF for each follicular diameter group. Unless otherwise indicated, all chemicals were obtained from Sigma Chemical Co.
The range for each diameter group was from 0.4 below the nominal diameter to 0.5 above the nominal diameter.
There were only 33 logs in the 6-inch diameter group due to log availability and time considerations.
On day 3, there were no statistically significant differences between the pure Ti and small diameter groups, while the viability of the cells on the [NT.sub.30] substrates was lower than on the untreated samples.
TABLE 1: A total of 12 evaluation parameters obtained from the IVUS image sequences including area and diameter groups. Evaluation parameters Area Lumen, fibrous, fibrolipidic, lipid core, calcified, media Diameter Maximum lumen diameter, minimum lumen diameter, average lumen diameter, maximum vessel diameter, minimum vessel diameter, average vessel diameter TABLE 2: IEA and IRA analyses of the manual tracing in terms of all validation indexes including A, VP, MLD, and MVD.
While there was no significant difference in the maximum level of follicle shutdown (17.30[+ or -]6.06 to 21.40[+ or -]5.26) on average high fibre diameter groups (Strongwool sheep; HL+HH) had significantly (p<0.0001) higher percentage of follicle shutdown (13.5[+ or -]0.9) than low fibre diameter groups (9.8[+ or -]0.9) (Finewool sheep; LL+LH) (Table 4).
Plasma cortisol concentration was however significantly (p<0.05) higher in the low coefficient of variation of fibre diameter groups (LL+HL) than high coefficient of variation of fibre diameter groups (LH+HH) two weeks after commencement of cortisol injection.
The panel moisture sorption for the small (S) and large (L) log diameter groups with two replicates and six specimens for each replicate was closely monitored from 30 percent to 90 percent RH for 16 days.