High morphology

Another way of implementing this technology is in the profiling mode, which can simply be thought of as a low-resolution imaging experiment with high morphological... 

It has been mentioned previously that some studies showed that slow depressurisation favoured the growth of larger crystals. In this context, Shlichta [101] published a patent for the production of crystals of high morphological quality by a slow, time-controlled reduction of pressure. During the pressure reduction the interchange of heat between the solution and the environment is controlled to be under either isothermal or adiabatic conditions. 

Going along with high morphological diversity (cell size ranges from single micrometer up to several hundred micrometers) and environmental situations in the natural habitat, the experimental setup for algae analysis by vibrational spectroscopy has to be adapted to the scientific point of interest in... 

The level of catalytic activity of anode determines how efficiently the fuel can be electrochemically oxidized in a fuel cell. In anode conditions, i.e., reducing atmospheres, most noble and transition metals may provide the desired activity. However, at intermediate temperatures only a selected set of metals can meet the whole set of criteria, such as high morphological and dimensional stability and low thermal expansion mismatch. Currently, nickel is the metal most commonly used as an anode material in SOFCs. The total electrical conductivity of a desired anode material should possess electronic as well as ionic components. Ionic conduction is widely accepted as the necessary conduction mechanism to enlarge the reaction zone. 

The above approximation, however, is valid only for dilute solutions and with assemblies of molecules of similar structure. In the event that concentration is high where intemiolecular interactions are very strong, or the system contains a less defined morphology, a different data analysis approach must be taken. One such approach was derived by Debye et al [21]. They have shown tliat for a random two-phase system with sharp boundaries, the correlation fiinction may carry an exponential fomi. 

Fig. 5. The effect of ultrasonic irradiation on the surface morphology and particle size ofNi powder. Initial particle diameters (a) before ultrasound were i 160 fim-, (b) after ultrasound, fim. High velocity interparticle coUisions caused by ultrasonic irradiation of slurries are responsible for the smoothing...

A key feature of encapsulation processes (Figs. 4a and 5) is that the reagents for the interfacial polymerisation reaction responsible for shell formation are present in two mutually immiscible Hquids. They must diffuse to the interface in order to react. Once reaction is initiated, the capsule shell that forms becomes a barrier to diffusion and ultimately begins to limit the rate of the interfacial polymerisation reaction. This, in turn, influences morphology and uniformity of thickness of the capsule shell. Kinetic analyses of the process have been pubHshed (12). A drawback to the technology for some apphcations is that aggressive or highly reactive molecules must be dissolved in the core material in order to produce microcapsules. Such molecules can react with sensitive core materials. 

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