It implies that the
selectivities of the two MOFs are both greater than 3 and increase when the mole fraction of ethane increasing except for one or two dots.
Therefore, due to the larger molecular diameter of C[H.sub.4] in comparison with C[O.sub.2] [23], PSf/Ti[O.sub.2] MMMs are able to separate these two gases by different
selectivities. Stainless steel filter holder which was equipped with a backpressure support screen with effective area of 13.8 [cm.sup.2] (Merck, Frankfurter, Darmstadt, Germany) was used for gas permeation experiments.
Gillnet mesh selectivities for gummy shark, Mustelus antarcticus Gunther, taken in south-eastern Australian waters.
Gill-net mesh selectivities for two species of commercial carcharhinid shark taken in northern Australia.
The achieved adsorption selectivities of L-Phe imprinted membrane [aAds]L and D-Phe imprinted membrane [aAds]D were 2.6 and 2.40 respectively.
The rejection selectivities of L-Phe and D-Phe imprinted membranes were [aRej]L=0.32 and [aRej]D =0.28 respectively.
Gases with larger molecular diameter diffuse slower through structure of prepared membrane and membrane act as molecular sieve [10, 23, 24], Accordingly, as C[H.sub.4] molecular diameter is larger than C[O.sub.2] [24], symmetric and asymmetric PSf membranes are able to separate these two gases by different
selectivities. Stainless steel filter holder that was equipped with a back-pressure support screen with effective area of 13.8 [cm.sup.2] (Merck) was used for gas permeation examination.
Patterns of convergence performance, between runs 9 to 12 and between runs 13 to 16, were very similar to those runs between runs 1 to 4 because these runs had the same setup for selectivities (Table 4).
Unstable descending curves have also been observed in some recent west coast groundfish assessments, where selectivities for the last age (length) group drops to a very small value (He et al., 2009).
The amplitude ripple curves level off for pre-limiter
selectivities below 65 dB, as shown in Figure 15.
For both methods, the
selectivities initially and up to the addition of 5.0 wt% PDMS were improved and reached to constant values.
The higher proportion of larger fish in the video data probably reflects spatial and bathymetric differences in the sampling more than different gear
selectivities. The video survey focused on the hard bottom, high-relief habitat along the 73-m (40-fathom) isobath and inshore of that isobath in the Florida Middle Grounds.
The
selectivities of different gears can be compared by fishing the gears side by side, but without knowing the size composition of the stock being fished, it is impossible to determine the form of the selectivity functions.
Abstract--We estimated size-specific depth distributions and commercial bottom trawl fishery
selectivities for Dover sole (Microstomus pacificus), shortspine thornyhead (Sebastolobus alascanus), longspine thornyhead (S.
