An Experimental Evaluation of the REE SIFT Environment for Spaceborne Applications

Coordinated Science Laboratory was formerly known as Control Systems Laborator

Decomposing Genomics Algorithms: Core Computations for Accelerating Genomics

Technological advances in genomic analyses and computing sciences has led to a burst in genomics data. With those advances, there has also been parallel growth in dedicated accelerators for specific genomic analyses. However, biologists are in need of a reconfigurable machine that can allow them to perform multiple analyses without needing to go for dedicated compute platforms for each analysis. This work addresses the first steps in the design of such a reconfigurable machine. We hypothesize that this machine design can consist of some accelerators of computations common across various genomic analyses. This work studies a subset of genomic analyses and identifies such core computations. We further investigate the possibility of further accelerating through a deeper analysis of the computation primitives.National Science Foundation (NSF CNS 13-37732); Infosys; IBM Faculty Award; Office of the Vice Chancellor for Research, University of Illinois at Urbana-ChampaignOpe

The Emerging Aversion to Inequality: Evidence from Poland 1992-2005

This paper provides an illustration of the changing tolerance for inequality in a context of radical political and economic transformation and rapid economic growth. We focus on the Polish experience of transition and explore self-declared attitudes of the citizens. Using monthly representative surveys of the population, realized by the Polish poll institute (CBOS) from 1992 to 2005, we identify a structural break in the relation between income inequality and subjective evaluation of well-being. The downturn in the tolerance for inequality (1997) coincides with the increasing distrust of political elites.http://deepblue.lib.umich.edu/bitstream/2027.42/64387/1/wp919.pd

Influence of polyethylene glycol concentration on morphology of polypropylene membranes

This work studied the influence of polyethylene glycol (PEG) concentration on the polypropylene membranes morphology. Polypropylene membranes were modified with argon plasma and then immersed in PEG solution with various concentration between 50-80%. Changes of membranes morphology were observed by scanning electron microscope, Fourier transform infrared spectroscopy and contact angle measurements

Hardware Support for High Performance, Intrusionand Fault-Tolerant Systems

Abstract — The paper proposes a combined hardware/software approach for realizing high performance, intrusion- and faulttolerant services. The approach is demonstrated for (yet not limited to) an Attribute Authority server, which provides a compelling application due to its stringent performance and security requirements. The key element of the proposed architecture is an FPGA-based, parallel crypto-engine providing (1) optimally dimensioned RSA Processors for efficient execution of computationally intensive RSA signatures and (2) a KeyStore facility used as tamper-resistant storage for preserving secret keys. To achieve linear speed-up (with the number of RSA Processors) and deadlock-free execution in spite of resource-sharing and scheduling/synchronization issues, we have resorted to a number of performance enhancing techniques (e.g., use of different clock domains, optimal balance between internal and external parallelism) and have formally modeled and mechanically proved our crypto-engine with the Spin model checker. At the software level, the architecture combines active replication and threshold cryptography, but in contrast with previous work, the code of our replicas is multithreaded so it can efficiently use an attached parallel crypto-engine to compute an Attribute Authority partial signature (as required by threshold cryptography). Resulting replicated systems that exhibit nondeterministic behavior, which cannot be handled with conventional replication approaches. Our architecture is based on a Preemptive Deterministic Scheduling algorithm to govern scheduling of replica threads and guarantee strong replica consistency. I