Introduction: Arterial Spin Labeling (ASL) provides a method to non-invasively assess tissue perfusion, and has recently been applied to study the kidney [1]. The importance of ASL methods to study the kidney has been highlighted due to the diagnosis of Nephrogenic Systemic Fibrosis (NSF), a side effect of gadolinium based contrast agents [2]. Prior ASL studies of the kidney typically acquire d...

Multiphase machines are AC machines characterized by a stator winding composed of a generic number n of phases. In today’s electric drive and power generation technology, multiphase machines play an important role for the benefits they bring compared to traditional three-phase ones (Levi, 2008; Levi et al., 2007). Such benefits have been widely highlighted by existing literature (Levi et al., 2...

This laboratory study aimed to reveal the inner connects between microstructure and corrosion properties of a RE microalloyed ultra-thin cast strip (UCS) steel. The mainly consisted homogeneous polygonal ferrite (PF) with small amount pearlite (P), while adding multiple alloying elements led appearance granular bainite (GB) bainitic (BF). strongly promoted homogenization refinement by segregati...

Pearlitic steel experiences excessive corrosion in a hot and humid atmosphere. The multiphase bainitic/martensitic structure was developed for better combination of strength ductility, especially rolling contact fatigue, but little attention to has been investigated. Corrosion behaviors steels obtained from bainitic-austempering (BAT) bainitic-quenching -partitioning (BQ&P) processes were i...

The evolution of the dislocation densities in martensite and austenite during quench a low-carbon (0.215 wt% C) steel is investigated situ by mean High Energy X-Ray Diffraction experiment on synchrotron beamline. line configuration offers an excellent time resolution well adapted to studied martensitic transformation kinetics. density dislocations increases as proceeds confirming that are not h...

Title of Dissertation: NUMERICAL MODELING OF MULTIPHASE

Magneto-electro-elastic materials are multiphase smart materials that exhibit coupling among electrical, magnetic and mechanical energy fields. Due to this ability, they have been the topic of numerous research in the past decade. In this paper, buckling behavior of a multiphase magneto-electro-elastic rectangular plate with simply supported boundary conditions is investigated, based on Reddy’s...

A new combination of factors enhancing the stabilization austenite, including pre-existed austenite among quenched martensite, prior deformation, and partitioning at high temperatures is employed to create a multi-component refined microstructure in medium Mn steel (Fe–4Mn–0.31C–2Ni–0.5Al–0.2Mo, wt.%). The evolution phase fraction during processing are systematically investigated using various ...

We consider the multiphase shape optimization problem