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Selecting RF amplifiers for impedance controlled LLRF systems: Nonlinear effects and system implications

by John D. Fox, Themis Mastorides, Claudio Hector Rivetta, Daniel Van Winkle - Presented at Particle Accelerator Conference (PAC 07 , 2007
"... Several high-current accelerators use feedback techniques in the accelerating RF systems to control the impedances seen by the circulating beam. [1, 2] These Direct and Comb Loop architectures put the high power klystron and LLRF signal processing components inside feedback loops, and the ultimate b ..."
Abstract - Cited by 3 (3 self) - Add to MetaCart
behavior of the systems depends on the individual sub-component properties. Imperfections and non-idealities in the signal processing leads to reduced effectiveness in the impedance control loops. In the PEP-II LLRF systems non-linear effects have been shown to reduce the achievable beam currents, increase

Practical privacy: the sulq framework

by Avrim Blum, Cynthia Dwork, Frank Mcsherry, Kobbi Nissim - In PODS ’05: Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems , 2005
"... We consider a statistical database in which a trusted administrator introduces noise to the query responses with the goal of maintaining privacy of individual database entries. In such a database, a query consists of a pair (S, f) where S is a set of rows in the database and f is a function mapping ..."
Abstract - Cited by 223 (35 self) - Add to MetaCart
We consider a statistical database in which a trusted administrator introduces noise to the query responses with the goal of maintaining privacy of individual database entries. In such a database, a query consists of a pair (S, f) where S is a set of rows in the database and f is a function mapping

Formal verification of a system-on-chip using computation slicing

by Alper Sen, Jayanta Bhadra, Vijay K. Garg, Jacob A. Abraham - In International Test Conference ITC
"... Formal verification of Systems-on-Chips (SoCs) is an immense challenge to current industrial practice. Most existent formal verification techniques are extremely computation intensive and produce good results only when used on individual sub-components of SoCs. Without major modifications they are o ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
Formal verification of Systems-on-Chips (SoCs) is an immense challenge to current industrial practice. Most existent formal verification techniques are extremely computation intensive and produce good results only when used on individual sub-components of SoCs. Without major modifications

© Copyright Operating Systems Review 2009. COTSon: Infrastructure for Full System Simulation

by Eduardo Argollo, Ayose Falcón, Paolo Faraboschi, Matteo Monchiero, Daniel Ortega, Eduardo Argollo, Ayose Falcón, Paolo Faraboschi, Matteo Monchiero, Daniel Ortega
"... Simulation is the primary technique for evaluating the performance of new proposals in computerarchitecture. Speed and complexity have traditionally limited simulation to single-thread processors running application-level code. This is no longer sufficient to model multicore systems running current ..."
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communication network. COTSon uses fast functional emulators and timing models to improve the simulation accuracy at a speed sufficient to simulate the full stack of applications and OSs. Through a robust interface between the functional and timing domain, COTSon leverages existing simulators for individual sub-components

COTSon: Infrastructure For Full System Simulation

by Eduardo Argollo, Ayose Falcón, Paolo Faraboschi, Matteo Monchiero, Daniel Ortega - Operating Systems Review , 2009
"... Simulation has historically been the primary technique used for evaluating the performance of new proposals in computer architecture. Speed and complexity considerations have traditionally limited its applicability to single-thread processors running application-level code. This is no longer suffici ..."
Abstract - Cited by 36 (2 self) - Add to MetaCart
tools that support commodity OSs and complex multitier applications. Through a robust interface between the functional and timing domain, we can leverage other existing simulators for individual sub-components, such as disks or networks. We abandon the idea of “always-on ” cyclebased simulation in favor

Hidden cognitive states revealed in choice reaching tasks.

by Joo-Hyun Song , Ken Nakayama - Trends in Cognitive Sciences, , 2009
"... Perceptual and cognitive processes have largely been inferred based on reaction times and accuracies obtained from discrete responses. However, discrete responses are unlikely to capture dynamic internal processes, occurring in parallel, and unfolding over time. Recent studies measuring continuous ..."
Abstract - Cited by 34 (4 self) - Add to MetaCart
of perception, cognition, decision-making and motor output. Reaction times and accuracies obtained from discrete responses such as button presses have been viewed as useful and effective behavioral measurements to individuate sub-components, each adding its own processing times For decades, however

unknown title

by Kris Hamada, Thomas Kelecy, Paul Kervin
"... Ground-based optical and radar sites routinely acquire resolved images of satellites. These images provide the means to construct accurate wire-frame models of the observed body, as well as an understanding of its orientation as a function of time. Unfortunately, because such images are typically ac ..."
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of contributions from many reflecting surfaces, an “un-mixing ” analysis must be employed to characterize the reflectance of the satellite’s individual sub-components. The objective of this paper is to outline the theory required for such an un-mixing process, focusing on two newly-developed analysis methods. Both

Surface Material Characterization from Multi-band Optical Observations

by unknown authors
"... Ground-based optical and radar sites routinely acquire resolved images of satellites. These resolved images provide the means to construct accurate wire-frame models of the observed body, as well as an understanding of its orientation as a function of time. Unfortunately, because such images are typ ..."
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-mixing ‖ or inversion process must be employed to determine the materials covering each of the satellite’s individual sub-components. The first section of this paper describes the inversion theory required to retrieve satellite surface material properties from temporal sequences of whole-body multi-band brightness

Preliminary: Comments Welcome. Do Not Cite Without Prior Permission

by Mark Aguiar, Erik Hurst , 2007
"... In this paper we revisit the familiar “hump ” shaped lifecycle profile of nondurable expenditures. We document that the behavior of total nondurables masks surprising heterogeneity in the lifecycle profile of individual sub-components. We find, for example, that while food expenditures decline after ..."
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In this paper we revisit the familiar “hump ” shaped lifecycle profile of nondurable expenditures. We document that the behavior of total nondurables masks surprising heterogeneity in the lifecycle profile of individual sub-components. We find, for example, that while food expenditures decline

Computing person and firm effects using linked longitudinal employer-employee data,” Center for Economic Studies, US Census Bureau,

by John M Abowd , Robert H Creecy , John M Abowd , Robert H Creecy , Francis Kramarz , 2002
"... Abstract In this paper we provide the exact formulas for the direct least squares estimation of statistical models that include both person and firm effects. We also provide an algorithm for determining the estimable functions of the person and firm effects (the identifiable effects). The computati ..."
Abstract - Cited by 141 (16 self) - Add to MetaCart
, Kramarz and Margolis (AKM, 1999) and Abowd, Finer and Kramarz (AFK, 1999) provided a basic statistical framework for decomposing wage rates into components due to individual heterogeneity (measured and unmeasured) and firm heterogeneity (measured and unmeasured). The first of these articles, AKM
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