Introduction I use LaTeX to write any documents that require the display of mathematics. In fact, since I will be writing my thesis in LaTeX, I am creating experiment summaries and analysis notes with it. Since I use some options very often it was worthwhile to create a simple template document. The template is the […]
Signal Decomposition Using Farge Wavelet Method
Wavelet analysis is becoming ever more popular in plasma and fusion research, though the methods have been known and applied in other fields (such as image processing and the monitoring of electrical power systems) for some time. In 2006 the following paper detailed a method for separating a time signal into its coherent and noise […]
UCLA Physics Featured in Physics Today
The UCLA Department of Physics and Astronomy is featured in the May 2007 issue of Physics Today. While the department is often featured in this publication, the May issue is the first time that I have had anything to do with it. A photo, shown below, from the PHYS 180E course (undergraduate plasma lab) is […]
Magnetized Cylinder as a Magnetic Dipole
A magnetic dipole can be made by running a current through a loop of wire. Most permanent magnets are bar magnets, however, and these are still commonly referred to as producing a dipole field. In this topic we will examine a very simple case in which the magnetization of a cylinder is used to determine […]
Typical Graduate Student’s Desk
A typical graduate student’s desk is shown in figure 1. While appearing as an unorganized cluster of paperwork and beverages, the items shown actually represent a finely tuned operation of study and productivity. The interplay of all these objects is described after the labeled image of figure 2. In figure 2 the contents of figure […]
Mean Free Path of Air
There is a simple approximation for the mean free path, λmfp, of particles in air at room temperature (T = 25 oC) given by, where λmfp is in units of centimeters and the pressure, P, is in units of Torr. While this is a commonly used approximation, it is not clear how it is derived. […]