This work presents an efficient on-chip ramp generator targeting to facilitate the deployment of Built-In Self-Test (BIST) techniques for ADC static linearity characterization. The proposed ramp generator is based on a fully-differential switched-capacitor integrator that is conveniently modified to produce a very small integration gain, such that the ramp step size is a small fraction of the L...

The recently developed traffic-responsive feedback control strategy HERO (HEuristic Ramp metering cOordination), that coordinates local ramp-metering actions in freeway networks, was implemented at the M1/M3 Freeway in Queensland, Australia. HERO employs an extended version of the feedback regulator ALINEA at the local level. HERO outperforms uncoordinated local ramp metering and approaches the...

This report introduces RAMP, an architectural model for long-term processor reliability measurement. With aggresive transistor scaling and increasing processor power and temperature, reliability due to wear-out mechanisms is expected to become a significant issue in microprocessor design. Reliability awareness at the microarchitectural design stage will soon be a neccessity and RAMP provides a ...

A (t; k; n; S) ramp scheme is a protocol to distribute a secret s chosen in S among a set P of n participants in such a way that: 1) sets of participants of cardinality greater than or equal to k can reconstruct the secret s; 2) sets of participants of cardinality less than or equal to t have no information on s, whereas 3) sets of participants of cardinality greater than t and less than k migh...

The instability of supersonic compression ramp flow is investigated. It is assumed that the Reynolds number is large and that the governing equations are the unsteady triple-deck equations. The mean flow is first calculated by solving the steady equations for various scaled ramp angles α, and the numerical results suggest that there is no singularity for increasing ramp angles. The stability of...

RAMP (Reduce And Map Provenance) is an extension to Hadoop that supports provenance capture and tracing for workflows of MapReduce jobs. RAMP uses a wrapper-based approach, requiring little if any user intervention in most cases, while retaining Hadoop’s parallel execution and fault tolerance. We demonstrate RAMP on a real-world MapReduce workflow generated from a Pig script that performs senti...

Computer architects have long used simulators to explore microarchitectures and quantitatively analyze design tradeoffs. Though attractive because of their low cost and ease of modification, these software simulators suffer from poor performance. In this paper, we present RAMP Gold, an FPGA-based manycore simulator that outperforms software simulators by orders of magnitude. It models up to 64 ...

We present in this paper a linear programming framework to address freeway control applications such as ramp metering. After showing the equivalence between the LWR model and a linear optimization problem, several extensions are introduced to model the ramp queues and the capacity drop phenomenon. A wide range of objective functions which are relevant in traffic engineering are then introduced ...

We used the patch clamp technique in situ to test the hypothesis that slow oscillations in metabolism mediate slow electrical oscillations in mouse pancreatic islets by causing oscillations in KATP channel activity. Total conductance was measured over the course of slow bursting oscillations in surface β-cells of islets exposed to 11.1 mM glucose by either switching from current clamp to voltag...

background: this study aimed to investigate the pedicle dimension and angulation in cervicothoracic junction (ctj) using the findings of computed tomographic (ct) to help accurate insertion of pedicular screw. methods: forty three patients with high quality ct images of ctj were evaluated. pedicle width (pw), pedicle height (ph), pedicle axis length (pal), transverse angle (ta) and sagittal ang...