Data centers are large energy consumers and a substantial portion of this power consumption is due to the control of physical parameters, which bring the need of high efficiency environmental control systems. In this paper, we describe a hardware sensing platform specifically tailored to collect physical parameters (temperature, pressure, humidity and power consumption) in large data centers. T...

By employing a nonlinear quantum kicked rotor model, we investigate the transport of energy in multidimensional quantum chaos. This problem has profound implications in many fields of science ranging from Anderson localization to time reversal of classical and quantum waves. We begin our analysis with a series of parallel numerical simulations, whose results show an unexpected and anomalous beh...

1389-1286/$ see front matter 2012 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.comnet.2012.12.004 q A shorter version [1] of this paper appeared in DCPerf 2012. ⇑ Corresponding author. Tel.: +36 14632187. E-mail addresses: [email protected] (M. Csernai), gulyas@tmit. bme.hu (A. Gulyás), [email protected] (A. K} orösi), [email protected]. hu (B. Sonkoly), [email protected]...

DC is proposed for use in data centers as an alternative to AC distribution primarily based on publicized claims of efficiency improvements and energy savings. This paper shows that the most widely cited values for quantitative improvements are wrong and grossly overstate the efficiency differences between AC and DC, and that the latest AC and DC systems provide effectively the same efficiency....

MacroBase is a new kind of data analysis engine designed to prioritize human attention in large-scale fast data streams. Given increasing data volumes that are increasingly too large for manual inspection, MacroBase highlights interesting behaviors in streams and produces explanations for these behaviors that can be used for tasks including diagnostics, alerting, and root cause analysis. MacroB...

s: 2008 KM Sutherland, PC Edwards, LS Van Winkle. Mechanisms of Pulmonary Tolerance in Female Mice to the Cytotoxicant Naphthalene FASEB J. 22: 918.4 2008 LS Van Winkle and JR Harkema. Oxidant Air Pollution and Childhood Asthma. The Toxicologist Vol 102, S-1, p117 A568. 2008 M.V. Fanucchi, B.M. Kumfer, E.D. Wallis, I.M. Kennedy.Acute Airway Epithelial Injury from Three Different Carbon Particle...