User:Jadrian Miles

I started my PhD in CS at Brown in Fall 2006. I work on data processing, measurement, and model reconstruction from diffusion MRI of the brain.

You can find me elsewhere online:

• CS department page
• Visweb profile
• Other places

There are a number of directories related to me on the CS filesystem, all of which are linked from file:///map/gfx0/users/jadrian

Personal Documents

• /PhD Plan
• /Research Projects
• /Diffusion simulation
• /Streamline clustering

Draft pages / notes

• /Plan your PhD
• /Diffusion MRI techniques
• /BB's dollarg
• /Eclipse
• /sandbox

Nifty code snippets

• Generate a random filename from the command line:

  set tmpfile=/tmp/`head -q -c 8 /proc/sys/kernel/random/uuid`

• Convert stdin to lowercase on stdout:

  tr '[A-Z]' '[a-z]'

• Test for host availability in tcsh (for loop demo):

  foreach h ( `cat hostlist` )

  ssh $h uname -n

  end

• Update a directory with stuff that exists in a CVS repository but not in the directory:

  cvs update -d

Miscellaneous notes

• High b sensitizes to short length scale (Assaf & Cohen 1998, 2000). This helps explain why SNR drops for higher b.