Methods of preparation and application of amorphous form are well established but it is equally important to note that devitrification of amorphous drugs has limited their applications. Present study was performed to investigate mechanism for amorphous drug stabilization using Gelucire in comparison with polyvinylpyrrolidone (PVP). Etoricoxib and celecoxib were taken as model drugs for this stu...

Amorphous computing is a recently introduced paradigm that favours geometrical configurations. The physical layout of an amorphous computer is based on a possibly irregular and error-prone planar distribution of a large number of simple processing components; this is well-suited for handling spatial structures. It has come to our attention that the well-known and long-since established discipli...

Crystalline and amorphous GaSb surfaces are compared concerning their response to sputter erosion with low energy Ar ions under normal incidence. We show that the formation of regular nanostructures on GaSb is basically independent of whether the initial material is crystalline or amorphous. The similarity in the temporal and spatial evolution demonstrates that the dynamics of the morphology ev...

We use a Monte Carlo bond-switching method to study systematically the thermodynamic properties of a “continuous random network” model, the canonical model for such amorphous systems as a-Si and a-SiO2. Simulations show first-order “melting” into an amorphous state, and clear evidence for a glass transition in the supercooled liquid. The random-network model is also extended to study heterogene...

Amorphous and nanocrystalline silicon films obtained by Hot-Wire Chemical Vapor deposition have been incorporated as active layers in n-type coplanar top gate thin film transistors deposited on glass substrates covered with SiO2. Amorphous silicon devices exhibited mobility values of 1.3 cmVs, which are very high taking into account the amorphous nature of the material. Nanocrystalline transist...

Amorphous non-crystalline solid: a solid in which. Is there any method in which to distinguish between crystal. Distinction between crystalline and amorphous solids. The essential differences are displayed in Figure 2. The salient.You may also download a PDF copy of this book 147 MB or just this chapter 9 MB. To know the characteristic properties of crystalline and amorphous solids. Or metallic...

Amorphous and crystalline phases of Ge2Sb2Te5 films are investigated by coherent phonon spectroscopy. By heating amorphous films above specific temperatures, the coherent phonon signatures exhibit pronounced changes due to the crystallization of the amorphous phase into a cubic lattice and the transition from the cubic to a hexagonal crystal structure. The phonon modes observed are identified b...