Susceptibility tensor imaging (STI) is a recently developed MRI technique that allows quantitative determination of orientation-independent magnetic susceptibility parameters from the dependence of gradient echo signal phase on the orientation of biological tissues with respect to the main magnetic field. By modeling the magnetic susceptibility of each voxel as a symmetric rank-2 tensor, indivi...

D. Wang, G. Cowin, K. McMahon, D. M. Doddrell Centre for Magnetic Resonance, The University of Queensland, Brisbane, Qld, Australia Introduction Gradient coils in magnetic resonance imaging (MRI) play an increasingly important role as many advanced imaging sequences developed in recent years normally require faster and stronger gradients. To meet this demand, gradient designers employed differe...

PURPOSE Diffusion kurtosis imaging (DKI) is a recent improvement over diffusion tensor imaging that characterizes tissue by quantifying non-gaussian diffusion using a 3D fourth-order kurtosis tensor. DKI needs to consider three constraints to be physically relevant. Further, it can be improved by considering the Rician signal noise model. A DKI estimation method is proposed that considers all t...

In the framework of SU(2) gluodynamics, we derive the tensor structure of the neutral gluon polarization tensor in an Abelian homogeneous magnetic field at finite temperature and calculate it in one-loop approximation in the Lorentz background field gauge. The imaginary time formalism and the Schwinger operator method are used. The latter is extended to the finite temperature case. The polariza...

The measurement error of the differencing (i.e., using two homogenous field sensors at a known baseline distance) magnetic gradient tensor system includes the biases, scale factors, nonorthogonality of the single magnetic sensor, and the misalignment error between the sensor arrays, all of which can severely affect the measurement accuracy. In this paper, we propose a low-cost artificial vector...

In the present study, an analytical investigation on the entropy generation examination for viscoelastic fluid flow involving inclined magnetic field and non-linear thermal radiation aspects with the heat source and sink over a stretching sheet has been done. The boundary layer governing partial differential equations were converted in terms of appropriate similarity transformations to non-line...

The energy-momentum tensor (EMT) of the 't Hooft-Polyakov monopole and Julia-Zee dyon are studied. This contains important information about pressure shear force distributions which define mechanical properties systems. Obtaining violation local stability criterion for magnetic we decompose EMTs into long- short-range parts. decomposition depends on Abelian field strength cannot be uniquely def...