Stimulated by recent experimental results on superelastic NiTi shape memory alloy, a theoretical study is carried out to quantify the effect of plasticity on stress-induced martensite transformation, using a constitutive model that combines phase transformation and plasticity. A constraint equation is introduced to quantify the phenomenon of the stabilisation of plasticity on stress-induced mar...

in this paper, the temperature distribution around a moving heat source had been investigated including the phase change and non phase change . in non-phase change state, the governing equation was converted to finite difference equation by finite volume method and the equation was solved by alternating direction implicit method. this method was unconditionally stable . in phase change state, t...

We present the detailed results of the investigation by X-ray diffraction of the photoinduced phase transition in the Tris(α-picolylamine)iron(II) Chloride-Ethanol complex. This system undergoes a two-steps spin transition between a high spin state at room temperature and a low spin state at low temperature. The intermediate phase consists of stripes of high spin and low spin molecules. The X-r...

a method for solving the descriptor discrete-time linear system is focused. for easily, it is converted to a standard discrete-time linear system by the definition of a derivative state feedback. then partial eigenvalue assignment is used for obtaining state feedback and solving the standard system. in partial eigenvalue assignment, just a part of the open loop spectrum of the standard linear s...

Natural formation of the bcc modification for Co was demonstrated to occur upon precipitation of Co in supersaturated Au90Co10 alloy. The microstructural evolution was investigated by high resolution transmission electron microscopy. Co precipitation starts with the formation of very thin coherent plates along {100}Au. This initially precipitated Co was shown to be a hitherto unknown metastable...

the bakun phase, as one of most significant chalcolithic cultures of fars province attributed basic stage related to socio-economic transformation in early village societies of iran. on the basis of varied archaeological researches regarding bakun phase, revealed relatively homogenous culture on the whole of fars and some its neighbors was characterized by black on buff painted ceramic assembla...

The purpose of this contribution is twofold: to review how an SU(N) transformation can be experimentally realized using optical elements, and to show how such an experimental realization can be used to investigate the cyclic evolution of a state over the manifold SU(N)/U(N-1). The bulk of the results will be presented explicitly for SU(3) (see [1] for further details) and SU(4), although it wil...