Table 3: Tensile strength ([T.sub.s]), crushing strength
([C.sub.s]), friability ([F.sub.t]), disintegration time ([D.sub.T]), and DER [([C.sub.s]/[F.sub.t])/[D.sub.T]] and [DER.sub.c] ratios for paracetamol tablets containing different concentrations of the cassava starch disintegrants.
Most of the artemisinin-based tablets studied possessed the requisite physical attributes of mass uniformity, crushing strength
and disintegration in aqueous medium.
To outline the relative effect of the variation in cement content, percent addition and curing time on the cold crushing strength
of samples, correlation tables were established.
Similar to the bark specimens, meaningful values for maximum crushing strength
could not be determined for the wood specimens tested in the radial direction because of continuous densification as the stress increased beyond the proportional limit.
Measurements were done about 10 to 14 d after silking before stalk harvesting for crushing strength
. Ten competitive plants from the center row of each plot were probed in the middle of the flat side of the internode immediately below the primary ear node with a modified electronic rind penetrometer based on an Accuforce Cadet digital force gage, 18-kg capacity, powered by a 9-V alkaline battery (Ametek, Hunter Spring Division, Hatfield, PA) (Sibale et al., 1992).
There is also a high corrosion resistance and a low weight to crushing strength
. - I defined the crushing strength
of a fish as being equal to the crushing resistance of snails that have a 0.50 probability of being crushed (see also Arnold 1983, Wainwright 1987, and Osenberg and Mittelbach 1989).
In addition, the wood is resilient, with a medium bending and crushing strength
and low stiffness and resistance to shock loads.
The results of crushing strength
and disintegration time tests were analyzed using Student's t--test (SPSS 11) and expressed as mean [+ or-] SEM.
With compression parallel to grain specimens, both water and FR treatment decreased average maximum crushing strength
, water by 13 percent and FR treatment by a somewhat larger, but statistically insignificant, 16 percent.
Inheritance of and interrelationships among stalk crushing strength
, weight of stalk section, and rind thickness have been reported (Loesch et al., 1963; Singh et al., 1969; Kang et al., 1979).
The difference between species in body-size-specific crushing strength
suggests several predictions, both about the feeding biology of the redear, and of the interaction between the two species in communities where one species is introduced into a native habitat of the other species.
Various mechanical methods to measure stalk strength exist, including horizontal breaking strength, vertical crushing strength
, and rind penetrometer resistance (RPR), which is resistance of the rind to penetration by a needle-tipped penetrometer (Zuber and Grogan, 1961; Thompson, 1963).