Structure ordered

Other examples of order-disorder second-order transitions are found in the alloys CuPd and Fe Al. Flowever, not all ordered alloys pass tlirough second-order transitions frequently the partially ordered structure changes to a disordered structure at a first-order transition. 

Kose A and Flachisu S 1976 Ordered structure in weakly flocculated monodisperse latex J. Colloid Interface Sol. 55 487-98... 

Persson B N J 1992 Ordered structures and phase transitions in adsorbate iayers Surf. Sc/. Rep. 15 1-135... 

In addition to being a remarkable demonstration of the power of computer-based combinatorial design of a protein fold, this designed peptide is the shortest known peptide consisting entirely of naturally occurring amino acids that folds into a well-ordered structure without metal binding, oligomerization or disulfide bond formation. 

Liquid crystal polymers (LCP) are a recent arrival on the plastics materials scene. They have outstanding dimensional stability, high strength, stiffness, toughness and chemical resistance all combined with ease of processing. LCPs are based on thermoplastic aromatic polyesters and they have a highly ordered structure even in the molten state. When these materials are subjected to stress the molecular chains slide over one another but the ordered structure is retained. It is the retention of the highly crystalline structure which imparts the exceptional properties to LCPs. 

FIG. 7 Ordered structures of hydrogen on Rh(311) and model interactions. (Reprinted from Ref. 39 with permission from Elsevier Science.)... 

The field t is not coupled to any other fields and plays no role in the formation of ordered structures [15] within the Gaussian approximation. 

While this process implies an ordered, structured process, it should be noted that the various stages overlap and it is frequently necessary to return to an earlier step in the process to modify or clarify information or decisions made in an earlier phase. The influence of the human factors aspects on design needs to be similarly integrated into the process design procedure. The particular human factors elements to be addressed at each phase are discussed below. These phases can be directly related to the human factors engineering and ergonomics (HFE/E) design approach described in Section 2.2. 

Figure 1. The effective pair interactions as functions of alloy composition for the alloy system Al-Ni. The results of the CWIS based on the FP-LAPW calculations for 5 ordered structures (full line) and on the TB-LMTO-CPA for 5 disordered alloys (dash line) are compared with the the results of the GPM (dotted line).

Figure 1 Schematic views of the CusPt (left panel) and CusPta (right panel) ordered structures. The squares indicate the unit cells.

Figure 2 Schematic views of the layer sequence of the ordered structures discussed in the text the CusPt single crystal (left panel), the ordered overlayer of CusPt on the Pt substrate (middle panel) and the ordered overlayer of CusPts on Pt (right panel).

In crystals with the LI2 structure (the fcc-based ordered structure), there exist three independent elastic constants-in the contracted notation, Cn, C12 and 044. A set of three independent ab initio total-energy calculations (i.e. total energy as a function of strain) is required to determine these elastic constants. We have determined the bulk modulus, Cii, and C44 from distortion energies associated with uniform hydrostatic pressure, uniaxial strain and pure shear strain, respectively. The shear moduli for the 001 plane along the [100] direction and for the 110 plane along the [110] direction, are G ooi = G44 and G no = (Cu — G12), respectively. The shear anisotropy factor, A = provides a measure of the degree of anisotropy of the electronic charge... 

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