Panagiota Nikolaou

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AH-7921 is a structurally unique synthetic opioid analgesic that has recently entered the drug arena in Europe, the USA, and Japan. Although it was synthesized and patented in the mid-1970s, it was first identified in a seized sample purchased via the Internet in July 2012 and formally brought to the attention of the European Union early warning system in(More)
Total Cost of Ownership (TCO) is a key optimization metric for the design of a datacenter. This paper proposes, for the first time, a framework for modeling the implications of DRAM failures and DRAM error protection techniques on the TCO of a datacenter. The framework captures the Effects and interactions of several key parameters including: the choice of(More)
This paper proposes implicit-storing to extend the logical capacity of a memory array without increasing its physical capacity by leveraging the array's error-correction-codes to infer the implicitly stored bits. Implicit-storing is related to error-code-tagging, a technique that distinguishes between faults in data and invariant attributes of a location(More)
This work introduces Check-on-Write: a memory array error protection approach that enables a trade-off between a memory array's fault-coverage and energy. The presented approach checks for error in a value stored in an array before it is overwritten rather than, as currently done, when it is read (check-on-read). This aims at reducing the number and energy(More)
This paper defines a methodology for the oracle selection of the monitors and knobs to use to configure an HPC system running a scientific application while satisfying the application's requirements and not violating any system constraints. This methodology relies on a heuristic correlation analysis between requirements, monitors and knobs to determine the(More)
Fonazepam (desmethylflunitrazepam) and nifoxipam (3-hydroxy-desmethylflunitrazepam) are benzodiazepine derivatives and active metabolites of flunitrazepam. They recently invaded the drug arena as substances of abuse and alerted the forensic community after being seized in powder and tablet forms in Europe between 2014 and 2016. A review of all the existing(More)
The common practice for quantifying the benefit(s) of design-time architectural choices of server processors is often limited to the chip- or server-level. This quantification process invariably entails the use of salient metrics, such as performance, power, and reliability, which capture-in a tangible manner-a designs overall ramifications. This paper(More)
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