Properties packing

Y Miyake, A Shimoda, T Jasu, M Furukawa, K Nesuji, K. Hoshi. Packing properties of pharmaceutical powders into hard gelatin capsules. Yakuzaigaku 34 32, 1974. 

Unsaturated fats that have trans double bonds produced by hydrogenation and saturated fats with single bonds have similar linear hydrocarbon geometries, lipid packing properties, and effects on lipoprotein profiles of those who eat them. 

The closed-belt (zipper) conveyor of Figure 5.13 is a carrier that is not limited by fineness or packing properties or abrasiveness. Of course, it goes in any direction. It is made in a nominal 4-in. size, with a capacity rating by the manufacturer of 0.07 cuft/ft of travel. The power requirement compares favorably with that of open belt conveyors, so that it is appreciably less than that of other types. The formula is... 

Cartilier, L.H. Tawashi, R. Effect of particle morphology on the flow and packing properties of lactose. STP Pharma Sci. 1993, 3, 213-220. 

Packing Properties of the Deoxycholic Acid Complexes.—The crystal structures of a variety of DCA complexes listed in Table 3 have been determined elsewhere and in... 

The relevant packing properties are divided into bulk and column properties. The former pertain to the bulk powder before it is packed into the column, the latter characterize the chromatographic properties of the packed column. 

In most cases the packing manufacture supplies a protocol for the packing process. There are a number of tests that allow one to set up a protocol. Recommended tests to evaluate the packing properties of silicas are... 

The dispersion coefficient D (Section 6.5.6.2) is assumed to depend only on the packing properties and flow conditions (Eq. 6.24) and, therefore, generally differs from the apparent dispersion coefficient Dapp defined in Section 6.2.4.I. 

The transport dispersive model (TDM, Section 6.2.5.1) is thus appropriate to simulate systems with considerable band broadening (Section 6.6), using only two different parameters to characterize packing properties (Dax) and mass transfer (keff). From theoretical viewpoint, Kaczmarski and Antos et al. (1996) provide rules, in which case both TDM and GRM give identical results. 

An intriguing property of PFs is their ability to form liquid crystalline phases [38,39]. Besides the different mesophases which are classified as nematic, poly(9,9-dioctyl)fluorene (PFO) shows several solid-state packing properties and polymorphs. The pioneering work of Grell et al. showed how solvent swelling and thermal cycling could be used to control the solid-state packing in PFO thin films [38,40]. In addition, the different phases show remarkably diverse photophysical properties, which have tremendous... 

For example, an alumina coating with a median pore size of typically 100 nm can be prepared from a suspension (in water) of commercially available submicron alumina powder with a mass based median diameter of 500 nm. In such a suspension colloidal interactions determine to a large extent the properties of the suspension. The particle packing properties are disturbed by the presence of a fraction of aggregates which always exist in such commercial powders. This fraction can be removed from a colloidally stable suspension by means of sedimentation fractionation (see Ref. [5] for an example). 

A suspension is a dispersion of solid particles in a liquid. A colloidal suspension is a sol. Colloidal properties become significant when the size of the parhcles is of the order of a few micrometer or less. In suspensions of large particles, for example, of some 10 pm or higher, hydrod5mamic interactions dominate the suspension flow properties emd particle packing behaviour. In colloidal suspensions interaction forces between the particles as well as hydro-dynamic interactions play a role in determining the flow and particle packing properties. 

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