Impedance Calculations for Oboe and Oboe‐like Structures

Pep-x Impedance and Instability Calculations∗

Impedance Calculations for the Improved Slc Damping Rings*

A longitudinal, single bunch instability is observed in the damping rings of the Stanford Linear Collider (SLC).[l] Beyond a threshold bunch population of 3 x 10” particles the bunch energy spread increases and a “saw-tooth” variation in bunch length and synchronous phase as functions of time is observed. Although the relative amplitude of the saw-tooth variation is small-only on the order of l...

Numerical Methods for Electronic Structures Calculations

My research interests are in scientific computing, specifically, nonlinear equations, nonlinear optimization, and unstructured meshing. There are many application domains in which algorithms in these areas play an important role such as electronic structures calculations, cardiology, and nonlinear elasticity. The main goal of my resesarch is, then, to identify and understand the mathematical pr...

Effective Internal Impedance Method for Series Impedance Calculations of Lossy Transmission Lines: Comparison to Standard Impedance Boundary Condition

A new impedance boundary condition method for calculating the series impedance of lossy quasi-TEM transmission lines is presented. Previous techniques using a more standard impedance boundary condition are typically limited to high frequency where the impedance boundary conditions can be easily approximated due to its localized characteristics in that limit. The new impedance boundary condition...

Numerical method for calculating input impedances of the oboe

The purpose of this study was to investigate a numerical method for obtaining input impedances of doublereed instruments--the oboe in particular. To this end, the physical dimensions of an oboe were used to compute its input impedance as a function of frequency for several different fingerings. The numerically computed input impendances of the oboe were compared to experimentally measured curve...