The observed solar oscillation spectrum is influenced by internal perturbations such as flows and structural asphericities. These features induce splitting of characteristic frequencies distort the resonant-mode eigenfunctions. Global axisymmertric flow -- differential rotation a very prominent perturbation. Tightly constrained profiles function latitude radius are products established heliosei...

Normal-mode helioseismic data analysis uses observed solar oscillation spectra to infer perturbations in the interior due global and local-scale flows structural asphericity. Differential rotation, dominant global-scale axisymmetric perturbation, has been tightly constrained primarily using measurements of frequency splittings via "$a$-coefficients". However, frequency-splitting formalism invok...

A very simple analytical model is given of the asymmetric continuous director rotation mode of ferroelectric liquid crystal displays. This model clearly illustrates the basic principles on which this mode is based, and allows easy parameter estimation. It is applied to transmission-voltage characteristics, switching times, and ion characterization.

Magnetically enhanced inductively coupled plasmas (MEICPs) typically display mode jumps as power or the magnetic field is increased. Inductive (H-mode) to helicon (W-mode) transitions in research reactors having uniform axial magnetic fields are often accompanied by a change in the spatial model structure and rapid increase in plasma density. In industrial plasma sources, the magnetic field str...

We compute the weak lensing Jacobi map at first order in perturbation theory and show that it is both, gauge invariant symmetric. Linear perturbations therefore do not induce any rotation. However, vector tensor $B$-modes shear. contrary to what often claimed literature, shear $B$-mode power spectrum fully determined by rotation spectrum. Also $E$-mode convergence While this difference small fo...

This paper gives the results of an investigation into the effects of wing torsion in a ternary-type spring-tab flutter. The results presented are for a series of calculations on an idealised system having degrees of freedom in wing pitch, rotation of the control surface and rotation of the tab; the pitching degree of freedom is spring restrained and is intended to represent wing torsion. The ta...

A stability analysis for the resistive wall mode is studied in the presence of trapped energetic particles (EPs). When the EPs' beta exceeds a critical value, a fishbonelike bursting mode (FLM) with an external kink eigenstructure can exist. This offers the first analytic interpretation of the experimental observations [Phys. Rev. Lett. 103, 045001 (2009)]. The mode-particle resonances for the ...

ID: 14214 Title: A novel scatter reduction and correction method to improve cone-beam CT (CBCT) image quality Purpose: To develop a novel scatter reduction and correction method to improve the CBCT image quality for IGRT applications. Method and Materials: A one-dimensional grid composed of lead with equal interspacing was positioned between the x-ray source and the imaging object during CBCT a...

Introduction: In many theoretical investigations [e.g. 1–8] the normal modes of the linearized equations of rotation are computed, yielding both the periods and the eigenspaces of three librations. Libration in longitude decouples from the other two, vertical modes. There is a fast vertical mode (polar motion) with a period very close to the average rotational period. It corresponds to tilting ...