NA-04-4 Symposium on High-Density Cooling Issues Update June 2004 NA-04-4- 1 Distribution of Cooling Airflow in a Raised-Floor Data Center Suhas V. Patankar and Kailash C. Karki . 629 NA-04-4-2 Thermal Profile of a High-Density Data Center- Methodology to Thermally Characterize a Data Center Roger R. Schmidt . 635 NA-04-4-3 Liquid Cooling-Friend or Foe Donald L. Beaty 643