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Strain coupling

In an article by Rijke and Taylor (150), who assume A = B = 1, the parameters qQ, % and v are determined separately from a series of measurements under unilateral strain, coupled with q measurements in equilibrium. They make, however, use of an unnecessary and unwarranted expansion of the In (1 — q-1) term in Eq. (III-27), which leads them to incorrect values. [Pg.46]

Charge and strain couple to magnetization quadratically ( m1) and act as local variations of the transition temperature from Equation (9) and (10), Tj(r) = Tcn -(Amlel+Amnrn)l d0. Thus at a given T, some regions will be... [Pg.142]

Rabe KM, Waghmare UV (1996) Strain coupling in the PbTiOs ferroelectric transition. Philos Trans R Soc Lond A354 2897... [Pg.617]

For high symmetry systems, strain coupling needs to take account of the separate components of the order parameter. For example, cubic tetragonal, cubic < orthorhombic and tetragonal orthorhombic transitions in perovskites are associated with the M3 and R25 points of the reciprocal lattice of space group Pm3m and there are two separate order parameters, each with three components. The full Landau expansion is (from Carpenter et al. 2000b). [Pg.47]

Redfem SAT (1990) Strain coupling and changing transition character in Ca-rich plagioclase. In Salje EKH, Phase Transitions in Ferroelastic and Co-elastic Crystals. Cambridge University Press, Cambridge, UK, p 268-282... [Pg.172]

In the projected synthesis of vitamin B12, the plan called for the construction of a key intermediate by the stereospecific cyclization of a stereochemically well-defined 1,3,5-triene to the corresponding 1,3-cyclohexadiene. From the inspection of molecular models, Woodward and his colleagues were confident that the minimization of angle strain coupled with appropriate orbital overlap would favor a conrotatory cyclization. While the reaction was indeed found to be highly stereospecific, it took the disrotatory path instead. To explain the observed contradiction, it was necessary to recognize a new control element that Woodward and Hoffmann christened conservation of orbital symmetry [2, 3]. [Pg.127]

Along the aerobic pathway, analysis of cobalamin-producing mutant strains coupled with the study of the kinetics of purified enzymes led to the deduction that cobyrinic acid ,r-diamide is the intermediate that becomes adenosylated. However, it is not known which intermediate is adenosylated along the anaerobic pathway, although the enzyme responsible for the adenosylation (CobA) has been well characterized. ... [Pg.486]

Net strain coupling Zone shape Toughness constant, C... [Pg.256]

This chapter provides a review of various types of fibre optic sensors, major issues of smart textile composites integrated with fibre Bragg grating sensors, that is temperature and strain coupling, sensitivity, multiaxial strain measurement, measurement effectiveness and reliability issues, as well as various measurement systems for smart textile composites integrated with fibre optic sensors. [Pg.175]

Currently, the highest titres of C5 isoprenoids reported are for isoprene, a hydrocarbon that can be polymerised to produce synthetic rubbers, elastomers and a variety of other products (Table 1). Arotmd 80 g/L can be obtained using highly engineered E. coli strains coupled with optimised bioprocess conditions (Beck et al. 2013). This titre is the highest reported in scientific literamre for any isoprenoid product so far. [Pg.315]

Equation (4.4) represents a viscoelastic material where all the time effects come from the history of the scalar invariants of strain and also from aging effects, which can be eliminated by removing the variable t. Depending on the form of the functionals 4 3, this particular constitutive equation can describe both permanent and fading memory viscoelasticity with strain coupling. When the history dependence is eliminated from the functionals then... [Pg.366]


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See also in sourсe #XX -- [ Pg.366 ]




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