NASA SBIR abstracts of 1991 phase 1 projects

The objectives of 301 projects placed under contract by the Small Business Innovation Research (SBIR) program of the National Aeronautics and Space Administration (NASA) are described. These projects were selected competitively from among proposals submitted to NASA in response to the 1991 SBIR Program Solicitation. The basic document consists of edited, non-proprietary abstracts of the winning proposals submitted by small businesses. The abstracts are presented under the 15 technical topics within which Phase 1 proposals were solicited. Each project was assigned a sequential identifying number from 001 to 301, in order of its appearance in the body of the report. Appendixes to provide additional information about the SBIR program and permit cross-reference of the 1991 Phase 1 projects by company name, location by state, principal investigator, NASA Field Center responsible for management of each project, and NASA contract number are included

Journal of Telecommunications and Information Technology, 2009, nr 1

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Design of complex integrated systems based on networks-on-chip: Trading off performance, power and reliability

The steady advancement of microelectronics is associated with an escalating number of challenges for design engineers due to both the tiny dimensions and the enormous complexity of integrated systems. Against this background, this work deals with Network-On-Chip (NOC) as the emerging design paradigm to cope with diverse issues of nanotechnology. The detailed investigations within the chapters focus on the communication-centric aspects of multi-core-systems, whereas performance, power consumption as well as reliability are considered likewise as the essential design criteria

NSSDC Conference on Mass Storage Systems and Technologies for Space and Earth Science Applications, volume 1

Papers and viewgraphs from the conference are presented. This conference served as a broad forum for the discussion of a number of important issues in the field of mass storage systems. Topics include magnetic disk and tape technologies, optical disks and tape, software storage and file management systems, and experiences with the use of a large, distributed storage system. The technical presentations describe, among other things, integrated mass storage systems that are expected to be available commercially. Also included is a series of presentations from Federal Government organizations and research institutions covering their mass storage requirements for the 1990's

Technical Design Report for the PANDA Micro Vertex Detector

This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as close as possible to the interaction zone. Design criteria and the optimisation process as well as the technical solutions chosen are discussed and the results of this process are subjected to extensive Monte Carlo physics studies. The route towards realisation of the detector is outlined

Development of a Novel Transverse Beam Profile and Emittance Monitor for the CERN Proton Synchrotron

Beam profile and emittance monitoring is essential to understand the dynamic be- haviour of the ensemble of particles in an accelerator beam. A non-invasive mea- surement of the beam profile ensures reliable measurements. One such device is the beam gas Ionisation Profile Monitor (IPM), which relies on detecting the ionisation products from the interaction between residual gas molecules in the vacuum of the accelerator and the beam particles. Traditional detectors in IPMs have limited the instruments reliability and perfor- mance. A novel approach using Timepix3 pixel detectors is explored in this thesis project which enables direct detection of ionisation electrons with a precise time resolution. A radiation hard readout system was developed to allow the maximum detection performance of the pixel detectors and beam measurements were recorded during 2018. A beam profile reconstruction method was developed that takes advantage of the information recorded by the Timepix3 detectors to identify and only select events that are associated with ionisation electrons. From these events, a beam profile was reconstructed and the beam size calculated by fitting a Gaussian model to the beam profile data or by calculating the RMS beam size directly. During 2018 a prototype IPM with pixel detectors was installed in the Proton Synchrotron at CERN. Beam profile measurements recorded with this instrument demonstrated the ability to measure the beam profile continuously throughout the beam cycle in the accelerator. Expected beam dynamics effects such as adiabatic damping and oscillations during transition crossing were observed with the instru- ment. The time resolution of the pixel detectors enabled bunch-by-bunch measure- ments of the beam profile by integrating the recorded events separately for each bunch over multiple turns

Control and reliability of optical networks in multiprocessors

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.Includes bibliographical references (leaves 138-142).by James Jonathan Olsen.Ph.D