Incompatibility forces

Conflicting results on tlie effect of flow rate or fluid velocity on scale deposition have been reported by Andritsos and Karabelas [21]. They showed that the flow rate either increased or decreased the mass of scale deposited over a certain period of time. Clearly, this is due to the nature of the solid-fluid interface layer and the shear sti ess induced to the scale by the flow. These two incompatible forces are further complicated by other parameters such as the presence of additives, which may exert a significant effect on the nature of the interface layer as well as on the characteristics of the scale deposited [26]. Fluid velocity also affects the orientation of the growing scale or crystals [2, 27, 28]. The tendency is that the scale to orient to the direction of the fluid flow [2]. A rather recent study on gypsum and calcium carbonate scaling of membrane desalination by He and co-workers [29] shows that a faster flow rate increases more deposition of gypsum scale. 

If system components are totally insoluble and even do not swell (that is an exceptional case for oligomers), such systems are considered incompatible. Forced mixing of oligomers leads in this case to formation of heterogeneous (colloid) systems with every phase as an individual component. The dispersity in these heterogeneous systems is a function of many factors and, first of all, of the energy injected into a system. 

In a fundamental sense, the miscibility, adhesion, interfacial energies, and morphology developed are all thermodynamically interrelated in a complex way to the interaction forces between the polymers. Miscibility of a polymer blend containing two polymers depends on the mutual solubility of the polymeric components. The blend is termed compatible when the solubility parameter of the two components are close to each other and show a single-phase transition temperature. However, most polymer pairs tend to be immiscible due to differences in their viscoelastic properties, surface-tensions, and intermolecular interactions. According to the terminology, the polymer pairs are incompatible and show separate glass transitions. For many purposes, miscibility in polymer blends is neither required nor de-... 

Software can be poorly designed data format specifications are perhaps incompatible, intermediate results are inaccessible, all data are lost if an input error is committed, or results and data are not transferable to other programs. The division into tasks (modules, menu positions) might reflect not human but computer logic, and the sequence of entries the user is forced to follow might include unnecessary or redundant steps. 

Informed consent is incompatible with inherently coercive situations that force a person to barter his or her natural neuro- and biochemistry in exchangefor freedom. 

Starch-plastic composites contain a mixture of two very different types of materials (/) hydrophobic, petrochemical-derived polymers (PE, EAA) known to be highly resistant to degradation by living organisms, and (i7) a hydrophilic, natural polymer (starch) that is easily broken down by a wide array of organisms. In the process developed by Otey (3), these fundamentally incompatible materials are forced into an intimate mixture during production of the plastic film. Since... 

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