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Sample records for honeywell computers

  1. Honeywell Modular Automation System Computer Software Documentation

    SciTech Connect

    STUBBS, A.M.

    2000-12-04

    The purpose of this Computer Software Document (CSWD) is to provide configuration control of the Honeywell Modular Automation System (MAS) in use at the Plutonium Finishing Plant (PFP). This CSWD describes hardware and PFP developed software for control of stabilization furnaces. The Honeywell software can generate configuration reports for the developed control software. These reports are described in the following section and are attached as addendum's. This plan applies to PFP Engineering Manager, Thermal Stabilization Cognizant Engineers, and the Shift Technical Advisors responsible for the Honeywell MAS software/hardware and administration of the Honeywell System.

  2. Honeywell Modular Automation System Computer Software Documentation

    SciTech Connect

    CUNNINGHAM, L.T.

    1999-09-27

    This document provides a Computer Software Documentation for a new Honeywell Modular Automation System (MAS) being installed in the Plutonium Finishing Plant (PFP). This system will be used to control new thermal stabilization furnaces in HA-211 and vertical denitration calciner in HC-230C-2.

  3. Evaluation of Honeywell Recoverable Computer System (RCS) in Presence of Electromagnetic Effects

    NASA Technical Reports Server (NTRS)

    Malekpour, Mahyar

    1997-01-01

    The design and development of a Closed-Loop System to study and evaluate the performance of the Honeywell Recoverable Computer System (RCS) in electromagnetic environments (EME) is presented. The development of a Windows-based software package to handle the time critical communication of data and commands between the RCS and flight simulation code in real-time, while meeting the stringent hard deadlines is also presented. The performance results of the RCS while exercising flight control laws under ideal conditions as well as in the presence of electromagnetic fields is also discussed.

  4. HONEY -- The Honeywell Camera

    NASA Astrophysics Data System (ADS)

    Clayton, C. A.; Wilkins, T. N.

    The Honeywell model 3000 colour graphic recorder system (hereafter referred to simply as Honeywell) has been bought by Starlink for producing publishable quality photographic hardcopy from the IKON image displays. Full colour and black & white images can be recorded on positive or negative 35mm film. The Honeywell consists of a built-in high resolution flat-faced monochrome video monitor, a red/green/blue colour filter mechanism and a 35mm camera. The device works on the direct video signals from the IKON. This means that changing the brightness or contrast on the IKON monitor will not affect any photographs that you take. The video signals from the IKON consist of separate red, green and blue signals. When you take a picture, the Honeywell takes the red, green and blue signals in turn and displays three pictures consecutively on its internal monitor. It takes an exposure through each of three filters (red, green and blue) onto the film in the camera. This builds up the complete colour picture on the film. Honeywell systems are installed at nine Starlink sites, namely Belfast (locally funded), Birmingham, Cambridge, Durham, Leicester, Manchester, Rutherford, ROE and UCL.

  5. Honeywell: Comfort and economy

    SciTech Connect

    Lukaszewski, J.

    1995-12-31

    The presentation of the Company starts with having it ranked among the ones operating on the customers` market or those acting on the professional market. But it is not so. Honeywell is beyond such simple criteria. We are a company supplying products, systems and services related with generally conceived automatic control engineering, yet the operational range does comprise so many apparently diversified fields, for instance automatic control in aeronautics, heavy power engineering, building of apartment buildings, detached houses, heat engineering and some others. Nevertheless, our targets are always the same: maximum increase in efficiency and reliability of the process lines controlled by our systems as well as securing the best comfort of work and rest for people who stay in the buildings controlled by our devices. Simultaneously, the utilization of energy sources and the natural environment resources must be as sensible as possible.

  6. PREVENTIVE MAINTENANCE. HONEYWELL PLANNING GUIDE.

    ERIC Educational Resources Information Center

    Honeywell, Inc., Minneapolis, Minn.

    THIS HONEYWELL PAMPHLET DISCUSSES SOME ASPECTS OF PREVENTIVE MAINTENANCE OF AUTOMATIC CONTROLS, HEATING, VENTILATING, AND AIR CONDITIONING, AND COMPARES IN-PLANT WITH CONTRACT SERVICE, CONCLUDING THAT CONTRACT SERVICE IS PREFERABLE AND DESCRIBING A NUMBER OF MAINTENANCE PLANS WHICH THEY FURNISH. PREVENTIVE MAINTENANCE PROVIDES--(1) MORE EFFICIENT…

  7. Honeywell FLASH fiber optic motherboard evaluations

    NASA Astrophysics Data System (ADS)

    Stange, Kent

    1996-10-01

    The use of fiber optic data transmission media can make significant contributions in achieving increasing performance and reduced life cycle cost requirements placed on commercial and military transport aircraft. For complete end-to-end fiber optic transmission, photonics technologies and techniques need to be understood and applied internally to the aircraft line replaceable units as well as externally on the interconnecting aircraft cable plant. During a portion of the Honeywell contribution to Task 2A on the Fly- by-Light Advanced System Hardware program, evaluations were done on a fiber optic transmission media implementation internal to a Primary Flight Control Computer (PFCC). The PFCC internal fiber optic transmission media implementation included a fiber optic backplane, an optical card-edge connector, and an optical source/detector coupler/installation. The performance of these optical media components were evaluated over typical aircraft environmental stresses of temperature, vibration, and humidity. These optical media components represent key technologies to the computer end-to-end fiber optic transmission capability on commercial and military transport aircraft. The evaluations and technical readiness assessments of these technologies will enable better perspectives on productization of fly-by-light systems requiring their utilizations.

  8. Honeywell Modular Automation System Acceptance Test Procedure

    SciTech Connect

    STUBBS, A.M.

    1999-09-21

    The purpose of this Acceptance Test Procedure (ATP) is to verify the operability of the three new furnaces as controlled by the new Honeywell Modular Automation System (MAS). The Honeywell MAS is being installed in PFP to control the three thermal stabilization furnaces in glovebox HA-211. The ATP provides instructions for testing the configuration of the Honeywell MAS at the Plutonium Finishing Plant(PFP). The test will be a field test of the analog inputs, analog outputs, and software interlocks. The interlock test will check the digital input and outputs. Field equipment will not be connected forth is test. Simulated signals will be used to test thermocouple, limit switch, and vacuum pump inputs to the PLUMAS.

  9. Ada (tradename) Compiler Validation Summary Report. Honeywell Information Systems, GCOS-8, V2.0.

    DTIC Science & Technology

    1987-04-03

    4-Aio 896 ADA (TRADEMNRE) COMPILER VALIDATION SUMMARY REPORT - 1/1 HONEYWELL INNORMATION (U) NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD SOFTWARE ...GRANT NUMBER(s) Software Standards Validation Group Institute for Computer Sciences an Technology National Bureau of Standards 9. PERFORMING...ORGANIZATION AND ADDRESS 10. PROGRAM ELEMENT, PROJECT, TASK Software Standards Validation Group, National AREA & WORK UNIT NUMBERS Bureau of Standards, Bldg

  10. 77 FR 64831 - Confirmatory Order; In the Matter of Honeywell International Inc.; Metropolis, Illinois

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ... From the Federal Register Online via the Government Publishing Office NUCLEAR REGULATORY COMMISSION Confirmatory Order; In the Matter of Honeywell International Inc.; Metropolis, Illinois I. Honeywell International Inc. (Honeywell or Licensee) is the holder of Materials License No. SUB-526,...

  11. Thermal performance of honeywell double covered liquid solar collector

    NASA Technical Reports Server (NTRS)

    Losey, R.

    1977-01-01

    The test procedures and results obtained during an evaluation test program to determine the outdoor performance characteristics of the Honeywell liquid solar collector are presented. The program was based on the thermal evaluation of a Honeywell double covered liquid solar collection. Initial plans included the simultaneous testing of a single covered Honeywell collector. During the initial testing, the single covered collector failed due to leakage; thus, testing continued on the double covered collector only. To better define the operating characteristics of the collector, several additional data points were obtained beyond those requested.

  12. 32. INTERIOR VIEW TO THE WEST OF A HONEYWELL WALL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. INTERIOR VIEW TO THE WEST OF A HONEYWELL WALL PRESSURE GAUGE IN ROOM 105, THE CONTROL ROOM. - Nevada Test Site, Pluto Facility, Disassembly Building, Area 26, Wahmonie Flats, Cane Spring Road, Mercury, Nye County, NV

  13. 53. DETAIL OF HONEYWELL PROPELLANT UTILIZATION TEST SET (RIGHT); ASSOCIATED ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    53. DETAIL OF HONEYWELL PROPELLANT UTILIZATION TEST SET (RIGHT); ASSOCIATED GOULD BRUSH CHART RECORDER (LEFT) - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  14. Remediation System Evaluation, Former Honeywell Facility in Fort Washington, Pennsylvania

    EPA Pesticide Factsheets

    The Honeywell facility is located at 1100 Virginia Drive in Upper Dublin Township, Montgomery County, Pennsylvania in the Fort Washington Industrial Park. The property is approximately 67 acres and is owned by 1100 Virginia Drive Associates.

  15. 75 FR 77664 - Honeywell International, Inc., Automation and Control Solutions Division, Including On-Site...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-13

    ... Employment and Training Administration Honeywell International, Inc., Automation and Control Solutions... of Honeywell International, Inc., Automation and Control Solutions Division, Rock Island, Illinois... International, Inc., Automation and Control Solutions Division. The Department has determined that these...

  16. The Honeywell Studies: How Managers Learn to Manage.

    ERIC Educational Resources Information Center

    Zemke, Ron

    1985-01-01

    Describes how a group of Honeywell Corporation human resources specialists determined how the organization's management development process could be improved to support the needs of the business. Discusses corporate management development strategy, curriculum, conference center, on-the-job experiences, and how experience, relationships, and…

  17. 52. VIEW OF HONEYWELL PROPELLANT UTILIZATION TEST SET (FOREGROUND) AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. VIEW OF HONEYWELL PROPELLANT UTILIZATION TEST SET (FOREGROUND) AND GENERAL ELECTRIC AIRBORNE BEACON EQUIPMENT TEST SET LOCATED IMMEDIATELY SOUTH OF DEMULTIPLEX BAY, IN THE SOUTHWEST CORNER OF THE TELEMETRY ROOM (ROOM 106) - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  18. 77 FR 1043 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-09

    ... stage low pressure turbine (LPT2) rotor blades, manufactured by Honeywell Chihuahua Manufacturing Operation since 2009. This proposed AD would require removing and inspecting certain LPT2 rotor blades. During LPT rotor acceleration, these blades may contact and damage the 3rd stage LPT (LPT3) nozzle...

  19. Honeywell's organic air vehicle chemical-biological sensing platform

    NASA Astrophysics Data System (ADS)

    Cole, Barry E.; Krafthefer, Brian; Knee, Daniel; Fulton, Vaughn M.; Law, Kristen

    2004-12-01

    Unmanned air vehicles (UAVs) today are mostly used for reconnaissance and sometimes weapons delivery. Remote sensing of chemical-biological (CB) agents is another beneficial use of UAVs. While remote sensing of CB agents can be done by LIDAR spectroscopy, this technology is less spatially precise and less sensitive than actual measurements on a collected sample. One family of UAVs of particularly unique benefit for CB sampling and in-flight analysis is the Honeywell family of Organic Air Vehicles (OAVs). This vehicle with its ability to hover and stare has the unique ability among UAVs to collect and analyze chem-bio samples from a specific location over extended periods of time. Such collections are not possible with other micro-air-vehicles (MAVs) that only operate in fly-by mode. This paper describes some of the Honeywell OAV features that are conducive to CB detection.

  20. 78 FR 1735 - Airworthiness Directives; Honeywell International Inc. Air Data Pressure Transducers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-09

    ... fails. Honeywell Service Bulletin ACM/ADC/ADAHRS-34-A01, dated November 6, 2012, specifies to refer to... Bulletin ACM/ADC/ADAHRS-34-A01, dated November 6, 2012, specifies to remove the affected equipment if the... corrective action if the functional test of the ADM accuracy fails. Honeywell Service Bulletin...

  1. 76 FR 58049 - Atomic Safety and Licensing Board; Honeywell International, Inc.; Metropolis Works Uranium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-19

    ... COMMISSION Atomic Safety and Licensing Board; Honeywell International, Inc.; Metropolis Works Uranium... assurance for its Metropolis Works uranium conversion facility in Metropolis, Illinois. \\1\\ LBP-11-19, 74... Financial Assurance Requirements, Honeywell Metropolis Works, Material License No. SUB- 526 (TAC No. L32718...

  2. Honeywell Cascade Distiller System Performance Testing Interim Results

    NASA Technical Reports Server (NTRS)

    Callahan, Michael R.; Sargusingh, Miriam

    2014-01-01

    The ability to recover and purify water through physiochemical processes is crucial for realizing long-term human space missions, including both planetary habitation and space travel. Because of their robust nature, distillation systems have been actively pursued as one of the technologies for water recovery. The Cascade Distillation System (CDS) is a vacuum rotary distillation system with potential for greater reliability and lower energy costs than existing distillation systems. The CDS was previously under development through Honeywell and NASA. In 2009, an assessment was performed to collect data to support down-selection and development of a primary distillation technology for application in a lunar outpost water recovery system. Based on the results of this testing, an expert panel concluded that the CDS showed adequate development maturity, TRL-4, together with the best product water quality and competitive weight and power estimates to warrant further development. The Advanced Exploration Systems (AES) Water Recovery Project (WRP) worked to address weaknesses identified by The Panel; namely bearing design and heat pump power efficiency. Testing at the NASA-JSC Advanced Exploration System Water Laboratory (AES Water Lab) using a prototype Cascade Distillation Subsystem (CDS) wastewater processor (Honeywell International, Torrance, Calif.) with test support equipment and control system developed by Johnson Space Center was performed to evaluate performance of the system with the upgrades. The CDS will also have been challenged with ISS analog waste streams and a subset of those being considered for Exploration architectures. This paper details interim results of the AES WRP CDS performance testing.

  3. Honeywell's Compact, Wide-angle Uv-visible Imaging Sensor

    NASA Technical Reports Server (NTRS)

    Pledger, D.; Billing-Ross, J.

    1993-01-01

    Honeywell is currently developing the Earth Reference Attitude Determination System (ERADS). ERADS determines attitude by imaging the entire Earth's limb and a ring of the adjacent star field in the 2800-3000 A band of the ultraviolet. This is achieved through the use of a highly nonconventional optical system, an intensifier tube, and a mega-element CCD array. The optics image a 30 degree region in the center of the field, and an outer region typically from 128 to 148 degrees, which can be adjusted up to 180 degrees. Because of the design employed, the illumination at the outer edge of the field is only some 15 percent below that at the center, in contrast to the drastic rolloffs encountered in conventional wide-angle sensors. The outer diameter of the sensor is only 3 in; the volume and weight of the entire system, including processor, are 1000 cc and 6 kg, respectively.

  4. Qualification test procedures and results for Honeywell solar collector subsystem, single-family residence

    NASA Technical Reports Server (NTRS)

    1977-01-01

    The test procedures and results in qualifying the Honeywell single family residence solar collector subsystem are presented. Testing was done in the following areas: pressure, service loads, hail, solar degradation, pollutants, thermal degradation, and outgassing.

  5. 83. DETAIL OF HONEYWELL AIRCONDITIONING CONTROLS IN SLC3E CONTROL ROOM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    83. DETAIL OF HONEYWELL AIR-CONDITIONING CONTROLS IN SLC-3E CONTROL ROOM - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  6. 75 FR 35354 - Airworthiness Directives; Honeywell International Inc. TPE331-10 and TPE331-11 Series Turboprop...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-22

    ... International Inc. TPE331-10 and TPE331-11 Series Turboprop Engines AGENCY: Federal Aviation Administration (FAA... airworthiness directive (AD) for Honeywell International Inc. TPE331-10 and TPE331-11 series turboprop engines...-15996. Applicability (c) This AD applies to Honeywell International Inc. TPE331-10 and TPE331-11...

  7. Ice Particle Analysis of the Honeywell AL502 Engine Booster

    NASA Technical Reports Server (NTRS)

    Bidwell, Colin S.; Rigby, David L.

    2015-01-01

    A flow and ice particle trajectory analysis was performed for the booster of the Honeywell ALF502 engine. The analysis focused on two closely related conditions one of which produced an icing event and another which did not during testing of the ALF502 engine in the Propulsion Systems Lab (PSL) at NASA Glenn Research Center. The flow analysis was generated using the NASA Glenn GlennHT flow solver and the particle analysis was generated using the NASA Glenn LEWICE3D v3.63 ice accretion software. The inflow conditions for the two conditions were similar with the main differences being that the condition that produced the icing event was 6.8 K colder than the non-icing event case and the inflow ice water content (IWC) for the non-icing event case was 50% less than for the icing event case. The particle analysis, which considered sublimation, evaporation and phase change, was generated for a 5 micron ice particle with a sticky impact model and for a 24 micron median volume diameter (MVD), 7 bin ice particle distribution with a supercooled large droplet (SLD) splash model used to simulate ice particle breakup. The particle analysis did not consider the effect of the runback and re-impingement of water resulting from the heated spinner and anti-icing system. The results from the analysis showed that the amount of impingement for the components were similar for the same particle size and impact model for the icing and non-icing event conditions. This was attributed to the similar aerodynamic conditions in the booster for the two cases. The particle temperature and melt fraction were higher at the same location and particle size for the non-icing event than for the icing event case due to the higher incoming inflow temperature for the non-event case. The 5 micron ice particle case produced higher impact temperatures and higher melt fractions on the components downstream of the fan than the 24 micron MVD case because the average particle size generated by the particle

  8. Acceptance Test Report for the Modular Automation System (MAS) Manufactured by Honeywell Inc.

    SciTech Connect

    ANDERSON, D.L.

    2000-02-01

    This document details the performance of the acceptance test of the Honeywell MAS Control System for equipment to be installed in gloveboxes HA-20MB and HA-211 at a later date. Equipment that was anticipated included 6 stabilization furnaces, only three and their associated equipment were installed.

  9. 76 FR 39918 - Honeywell International, Inc., Metropolis Works; License Amendment Request and Request for a Hearing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-07

    ... COMMISSION Honeywell International, Inc., Metropolis Works; License Amendment Request and Request for a... Metropolis Works Facility site located in Metropolis, Illinois. License No. SUB-526 authorizes the licensee... or other law requires submission of such information. With respect to copyrighted works, except for...

  10. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, HONEYWELL POWER SYSTEMS, INC. PARALLON 75 KW TURBOGENERATOR

    EPA Science Inventory

    The Environmental Technology Verification report discusses the technology and performance of the Parallon 75kW Turbogenerator manufactured by Honeywell Power Systems, Inc., formerly AlliedSignal Power Systems, Inc. The unit uses a natural-gas-fired turbine to power an electric ge...

  11. 78 FR 58305 - Honeywell International, Inc.; Analysis of Agreement Containing Consent Order To Aid Public Comment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-23

    ..., like anyone's Social Security number, date of birth, driver's license number or other state... the alleged violation by replacing the lost competition in the 2D scan engine market that would result from the proposed Acquisition. Under the terms of the Consent Agreement, Honeywell will license all...

  12. 76 FR 41312 - Honeywell International Inc.; Establishment of Atomic Safety And Licensing Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... COMMISSION Honeywell International Inc.; Establishment of Atomic Safety And Licensing Board Pursuant to....321, notice is hereby given that an Atomic Safety and Licensing Board (Board) is being established to... comprised of the following administrative judges: Paul S. Ryerson, Chair, Atomic Safety and Licensing...

  13. 78 FR 56859 - Foreign-Trade Zone 75-Phoenix, Arizona, Authorization of Limited Production Activity, Honeywell...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-16

    ... Foreign-Trade Zones Board Foreign-Trade Zone 75--Phoenix, Arizona, Authorization of Limited Production Activity, Honeywell Aerospace, Inc. (Aircraft Engines, Systems and Components), Phoenix and Tempe, Arizona On May 3, 2013, the City of Phoenix, grantee of FTZ 75, submitted a notification of...

  14. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, HONEYWELL POWER SYSTEMS, INC. PARALLON 75 KW TURBOGENERATOR

    EPA Science Inventory

    The Environmental Technology Verification report discusses the technology and performance of the Parallon 75kW Turbogenerator manufactured by Honeywell Power Systems, Inc., formerly AlliedSignal Power Systems, Inc. The unit uses a natural-gas-fired turbine to power an electric ge...

  15. Neighbors: A Partnership Project between the St. Louis Park, Minnesota Schools and the Military Avionics Division of Honeywell.

    ERIC Educational Resources Information Center

    Erickson, Cindy; Bengtson, Wayne

    1984-01-01

    A partnership between Honeywell and a Minnesota school district benefited both organizations through shared resources and provision of staff development programs. Details on how this collaborative project was designed and implemented are discussed. (DF)

  16. A Research Program in Computer Technology. Volume 1

    DTIC Science & Technology

    1981-08-01

    Staff: Research Assistants: Support Staff: Susan Gerhart David Taylor Lisa Moses Raymond Bates Jeannette Wing Rod Erickson Stanley Lee David Thompson...Kahn, and Bernard Lang. Formal Definition of Ada, Honeywell, Inc. and CII-Honeywell Bull, 1980. 2. Ichbiah, Jean D., et al., Reference Manual for the...Sunshine Bernard Berthomieu Suzanne Sluizer Greg Finn 7.1 PROBLEM BEING SOLVED This project explores the design and analysis of computer-to-computer

  17. Long-term weathering effects on the thermal performance of the Lennox/Honeywell (liquid) solar collector

    NASA Technical Reports Server (NTRS)

    1978-01-01

    The test procedures used and the results obtained during the evaluation test program of the Lennox/Honeywell double covered liquid solar collector. The tests were performed under simulated conditions, following long-term exposure to natural weathering conditions. The Lennox/Honeywell collector is a flat-plate solar collector. The absorber plate is steel with copper tubes bonded on the upper surface, and is coated with black chrome. Visual inspection of the collector indicated slight discoloration of the absorber plate. Results indicate that performance degradation had occurred. Absorptivity and/or transmissivity decreased as a result of the weathering.

  18. Experimental Investigation of the Herschel-Quincke Tube Concept on the Honeywell TFE731-60

    NASA Technical Reports Server (NTRS)

    Smith, Jerome P.; Burdisso, Ricardo A.; Gerhold, Carl H. (Technical Monitor)

    2002-01-01

    This report summarizes the key results obtained by the Vibration and Acoustics Laboratories at Virginia Tech over the period from January 1999 to December 2000 on the project 'Investigation of an Adaptive Herschel-Quincke Tube Concept for the Reduction of Tonal and Broadband Noise from Turbofan Engines', funded by NASA Langley Research Center. The Herschel-Quincke (HQ) tube concept is a developing technique that consists of circumferential arrays of tubes around the duct. A fixed array of tubes is installed on the inlet duct of the Honeywell TFE731-60 engine. Two array designs are incorporated into the inlet treatment, each designed for a different circumferential mode order which is expected to be cut on in the duct. Far field and in-duct noise measurement data are presented which demonstrate the effectiveness of the HQ concept for array 1, array 2, and both operating simultaneously.

  19. LEWICE3D/GlennHT Particle Analysis of the Honeywell Al502 Low Pressure Compressor

    NASA Technical Reports Server (NTRS)

    Bidwell, Colin S.; Rigby, David L.

    2015-01-01

    A flow and ice particle trajectory analysis was performed for the booster of the Honeywell AL502 engine. The analysis focused on two closely related conditions one of which produced a rollback and another which did not rollback during testing in the Propulsion Systems Lab at NASA Glenn Research Center. The flow analysis was generated using the NASA Glenn GlennHT flow solver and the particle analysis was generated using the NASA Glenn LEWICE3D v3.56 ice accretion software. The flow and particle analysis used a 3D steady flow, mixing plane approach to model the transport of flow and particles through the engine. The inflow conditions for the rollback case were: airspeed, 145 ms; static pressure, 33,373 Pa; static temperature, 253.3 K. The inflow conditions for the non-roll-back case were: airspeed, 153 ms; static pressure, 34,252 Pa; static temperature, 260.1 K. Both cases were subjected to an ice particle cloud with a median volume diameter of 24 microns, an ice water content of 2.0 gm3 and a relative humidity of 100 percent. The most significant difference between the rollback and non-rollback conditions was the inflow static temperature which was 6.8 K higher for the non-rollback case.

  20. Solar energy system performance evaluation - final report for Honeywell OTS 45, Salt River Project, Phoenix, Arizona

    SciTech Connect

    Mathur, A K

    1983-09-01

    This report describes the operation and technical performance of the Solar Operational Test Site (OTS 45) at Salt River Project in Phoenix, Arizona, based on the analysis of data collected between April 1981 and March 31, 1982. The following topics are discussed: system description, performance assessment, operating energy, energy savings, system maintenance, and conclusions. The solar energy system at OTS 45 is a hydronic heating and cooling system consisting of 8208 square feet of liquid-cooled flat-plate collectors; a 2500-gallon thermal storage tank; two 25-ton capacity organic Rankine-cycle-engine-assisted water chillers; a forced-draft cooling tower; and associated piping, pumps, valves, controls and heat rejection equipment. The solar system has eight basic modes of operation and several combination modes. The system operation is controlled automatically by a Honeywell-designed microprocessor-based control system, which also provides diagnostics. Based on the instrumented test data monitored and collected during the 8 months of the Operational Test Period, the solar system collected 1143 MMBtu of thermal energy of the total incident solar energy of 3440 MMBtu and provided 241 MMBtu for cooling and 64 MMBtu for heating. The projected net annual electrical energy savings due to the solar system was approximately 40,000 kWh(e).

  1. Solar energy system performance evaluation: Honeywell OTS 41, Shenandoah (Newman), Georgia

    NASA Astrophysics Data System (ADS)

    Mathur, A. K.; Pederson, S.

    1982-08-01

    The operation and technical performance of the Solar Operational Test Site (OTS 41) located at Shenandoah, Georgia, are described, based on the analysis of the data collected between January and August 1981. The following topics are discussed: system description, performance assessment, operating energy, energy savings, system maintenance, and conclusions. The solar energy system at OTS 41 is a hydronic heating and cooling system consisting of 702 square feet of liquid-cooled flat-plate collectors; a 1000-gallon thermal storage tank; a 3-ton capacity organic Rankine-cycle-engine-assisted air conditioner; a water-to-are heat exchanger for solar space heating; a finned-tube coil immersed in the storage tank to preheat water for a gas-fired hot water heater; and associated piping, pumps, valves, and controls. The solar system has six basic modes of operation and several combination modes. The system operation is controlled automatically by a Honeywell-designed microprocessor-based control system, which also provides diagnostics.

  2. Solar energy system performance evaluation: final report for Honeywell OTS 41, Shenandoah (Newnan), Georgia

    SciTech Connect

    Mathur, A K; Pederson, S

    1982-08-01

    The operation and technical performance of the Solar Operational Test Site (OTS 41) located at Shenandoah, Georgia, are described, based on the analysis of data collected between January and August 1981. The following topics are discussed: system description, performance assessment, operating energy, energy savings, system maintenance, and conclusions. The solar energy system at OTS 41 is a hydronic heating and cooling system consisting of 702 square feet of liquid-cooled flat-plate collectors; a 1000-gallon thermal storage tank; a 3-ton capacity organic Rankine-cycle-engine-assisted air conditioner; a water-to-air heat exchanger for solar space heating; a finned-tube coil immersed in the storage tank to preheat water for a gas-fired hot water heater; and associated piping, pumps, valves, and controls. The solar system has six basic modes of operation and several combination modes. The system operation is controlled automatically by a Honeywell-designed microprocessor-based control system, which also provides diagnostics. Based on the instrumented test data monitored and collected during the 7 months of the Operational Test Period, the solar system collected 53 MMBtu of thermal energy of the total incident solar energy of 219 MMBtu and provided 11.4 MMBtu for cooling, 8.6 MMBtu for heating, and 8.1 MMBtu for domestic hot water. The projected net annual energy savings due to the solar system were approximately 50 MMBtu of fossil energy (49,300 cubic feet of natural gas) and a loss of 280 kWh(e) of electrical energy.

  3. Program Documentation of a Computer Model for Variable Calculations of the Public School Foundation Program. Revised.

    ERIC Educational Resources Information Center

    Fullam, T. J.

    This publication documents the revised Alaska Finance Foundation Simulation Program, a computer finance simulation package for the Alaska School District Foundation Formula. The introduction briefly describes the program, which was written in Fortran for a Honeywell '66' computer located at the University of Alaska, Fairbanks, and allows…

  4. Modeling of Highly Instrumented Honeywell Turbofan Engine Tested with Ice Crystal Ingestion in the NASA Propulsion System Laboratory

    NASA Technical Reports Server (NTRS)

    Veres, Joseph P.; Jorgenson, Philip C. E.; Jones, Scott M.

    2016-01-01

    The Propulsion Systems Laboratory (PSL), an altitude test facility at NASA Glenn Research Center, has been used to test a highly instrumented turbine engine at simulated altitude operating conditions. This is a continuation of the PSL testing that successfully duplicated the icing events that were experienced in a previous engine (serial LF01) during flight through ice crystal clouds, which was the first turbofan engine tested in PSL. This second model of the ALF502R-5A serial number LF11 is a highly instrumented version of the previous engine. The PSL facility provides a continuous cloud of ice crystals with controlled characteristics of size and concentration, which are ingested by the engine during operation at simulated altitudes. Several of the previous operating points tested in the LF01 engine were duplicated to confirm repeatability in LF11. The instrumentation included video cameras to visually illustrate the accretion of ice in the low pressure compressor (LPC) exit guide vane region in order to confirm the ice accretion, which was suspected during the testing of the LF01. Traditional instrumentation included static pressure taps in the low pressure compressor inner and outer flow path walls, as well as total pressure and temperature rakes in the low pressure compressor region. The test data was utilized to determine the losses and blockages due to accretion in the exit guide vane region of the LPC. Multiple data points were analyzed with the Honeywell Customer Deck. A full engine roll back point was modeled with the Numerical Propulsion System Simulation (NPSS) code. The mean line compressor flow analysis code with ice crystal modeling was utilized to estimate the parameters that indicate the risk of accretion, as well as to estimate the degree of blockage and losses caused by accretion during a full engine roll back point. The analysis provided additional validation of the icing risk parameters within the LPC, as well as the creation of models for

  5. The UCLA MEDLARS computer system.

    PubMed

    Garvis, F J

    1966-01-01

    Under a subcontract with UCLA the Planning Research Corporation has changed the MEDLARS system to make it possible to use the IBM 7094/7040 direct-couple computer instead of the Honeywell 800 for demand searches. The major tasks were the rewriting of the programs in COBOL and copying of the stored information on the narrower tapes that IBM computers require. (In the future NLM will copy the tapes for IBM computer users.) The differences in the software required by the two computers are noted. Major and costly revisions would be needed to adapt the large MEDLARS system to the smaller IBM 1401 and 1410 computers. In general, MEDLARS is transferrable to other computers of the IBM 7000 class, the new IBM 360, and those of like size, such as the CDC 1604 or UNIVAC 1108, although additional changes are necessary. Potential future improvements are suggested.

  6. Ada Compiler Validation Summary Report: Certificate Number 880608S1. 09144, Honeywell Bull, GCOS 8 Ada Compiler, Version 2.1, DPS 8000, DPS 8/70, DPS 90 (Target)

    DTIC Science & Technology

    1988-06-08

    Compiler Validation Capability, ACVC, Validation Testing, Ada Validation Office, AVO , Ada Validation Facility, AVF, ANSI/MIL-STD- 1815A, Ada Joint Program...3-2 3 .4 W TESTS ................. 3-2 3 .5 INAPPI.CABLE TESIS ................ 3-2 3.6 TEST, PROCESSING, AND EVALUATItON MOIFICATIONS . . 3-4...Validation Organization ( AVO ). On-site testing was cmpleted 8 June 1988, at Honeywell Bull Corporation, Pnoenix, Arizona. 1. 2 USE OF THIS VALIDATION SUMR

  7. Computer Image Generation: Advanced Visual/Sensor Simulation.

    DTIC Science & Technology

    1981-10-01

    AD-AI07 098 HONEYWELL SYSTEMS AND RESEARCH CENTER MINNEAPOLIS MN F/6 14/5 COMPUTER IMAGE GENERATION: ADVANCED VISUAL/SENSOR SIMULATIONC l 0 ERY. UC...attenuation factorF 3. .i.i FLIR--The mooei for IR imagery requires that the temperature ano emissivity oe knovn for eacn ocject ano material to ce...that the temperature is known. It oepenos on the time of day, sun raoiance, clouo cover, moisture content in the backgrouno, and other factors. In

  8. Characterization of a Recoverable Flight Control Computer System

    NASA Technical Reports Server (NTRS)

    Malekpour, Mahyar; Torres, Wilfredo

    1999-01-01

    The design and development of a Closed-Loop System to study and evaluate the performance of the Honeywell Recoverable Computer System (RCS) in electromagnetic environments (EME) is presented. The development of a Windows-based software package to handle the time-critical communication of data and commands between the RCS and flight simulation code in real-time while meeting the stringent hard deadlines is also submitted. The performance results of the RCS and characteristics of its upset recovery scheme while exercising flight control laws under ideal conditions as well as in the presence of electromagnetic fields are also discussed.

  9. Fire Protection. Honeywell Planning Guide.

    ERIC Educational Resources Information Center

    Honeywell, Inc., Minneapolis, Minn.

    A general discussion of fire alarms and protection is provided by a manufacturer of automated monitoring and control systems. Background information describes old and new fire alarm systems, comparing system components, wage savings, and cost analysis. Different kinds of automatic systems are listed, including--(1) local system, (2) auxiliary…

  10. Temperature Control. Honeywell Planning Guide.

    ERIC Educational Resources Information Center

    Honeywell, Inc., Minneapolis, Minn.

    Presents planning considerations in selecting proper temperature control systems. Various aspects are discussed including--(1) adequate environmental control, (2) adequate control area, (3) control system design, (4) operators rate their systems, (5) type of control components, (6) basic control system, (7) automatic control systems, and (8)…

  11. Building Security. Honeywell Planning Guide.

    ERIC Educational Resources Information Center

    Honeywell, Inc., Minneapolis, Minn.

    A general discussion of building detection and alarm systems to provide security against burglary and vandalism is provided by a manufacturer of automated monitoring and control systems. Security systems are identified as--(1) local alarm system, (2) central station alarm system, (3) proprietary alarm system, and (4) direct connect alarm system..…

  12. A computer program for calculating symmetrical aerodynamic characteristics and lateral-directional stability derivatives of wing-body combinations with blowing jets

    NASA Technical Reports Server (NTRS)

    Lan, C. E.; Mehrotra, S. C.; Fox, C. H., Jr.

    1978-01-01

    The necessary information for using a computer program to calculate the aerodynamic characteristics under symmetrical flight conditions and the lateral-directional stability derivatives of wing-body combinations with upper-surface-blowing (USB) or over-wing-blowing (OWB) jets are described. The following new features were added to the program: (1) a fuselage of arbitrary body of revolution has been included. The effect of wing-body interference can now be investigated, and (2) all nine lateral-directional stability derivatives can be calculated. The program is written in FORTRAN language and runs on CDC Cyber 175 and Honeywell 66/60 computers.

  13. Overview of Honeywell electromechanical actuation programs

    NASA Technical Reports Server (NTRS)

    Wyllie, C.

    1982-01-01

    Materials illustrating a presentation on electromechanical actuation programs (EMA) are presented. The development history is outlined. Space shuttle flight control systems and the advantages of EMAS, and EMA technology status and development requirements are outlined.

  14. 77 FR 29697 - Honeywell Metropolis Works; Grant of Exemption for Honeywell Metropolis Works License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-18

    ... Licensing and Related Regulatory Functions. The conclusion of the EA is a Finding of No Significant Impact... minimize that hazard. These measures include taking a variety of air samples, using respirators in certain... programs, and use of respirators remain explicitly tied to the measurable quantities rather than to a...

  15. Computers and Computer Resources.

    ERIC Educational Resources Information Center

    Bitter, Gary

    1980-01-01

    This resource directory provides brief evaluative descriptions of six popular home computers and lists selected sources of educational software, computer books, and magazines. For a related article on microcomputers in the schools, see p53-58 of this journal issue. (SJL)

  16. Computers and Computer Cultures.

    ERIC Educational Resources Information Center

    Papert, Seymour

    1981-01-01

    Instruction using computers is viewed as different from most other approaches to education, by allowing more than right or wrong answers, by providing models for systematic procedures, by shifting the boundary between formal and concrete processes, and by influencing the development of thinking in many new ways. (MP)

  17. Computer Engineers.

    ERIC Educational Resources Information Center

    Moncarz, Roger

    2000-01-01

    Looks at computer engineers and describes their job, employment outlook, earnings, and training and qualifications. Provides a list of resources related to computer engineering careers and the computer industry. (JOW)

  18. Computer Engineers.

    ERIC Educational Resources Information Center

    Moncarz, Roger

    2000-01-01

    Looks at computer engineers and describes their job, employment outlook, earnings, and training and qualifications. Provides a list of resources related to computer engineering careers and the computer industry. (JOW)

  19. Computer Music

    NASA Astrophysics Data System (ADS)

    Cook, Perry R.

    This chapter covers algorithms, technologies, computer languages, and systems for computer music. Computer music involves the application of computers and other digital/electronic technologies to music composition, performance, theory, history, and the study of perception. The field combines digital signal processing, computational algorithms, computer languages, hardware and software systems, acoustics, psychoacoustics (low-level perception of sounds from the raw acoustic signal), and music cognition (higher-level perception of musical style, form, emotion, etc.).

  20. Computer Music

    NASA Astrophysics Data System (ADS)

    Cook, Perry

    This chapter covers algorithms, technologies, computer languages, and systems for computer music. Computer music involves the application of computers and other digital/electronic technologies to music composition, performance, theory, history, and perception. The field combines digital signal processing, computational algorithms, computer languages, hardware and software systems, acoustics, psychoacoustics (low-level perception of sounds from the raw acoustic signal), and music cognition (higher-level perception of musical style, form, emotion, etc.). Although most people would think that analog synthesizers and electronic music substantially predate the use of computers in music, many experiments and complete computer music systems were being constructed and used as early as the 1950s.

  1. Trusted Computing in Embedded Systems Workshop

    DTIC Science & Technology

    2011-03-01

    AFRL http://www.cert.org/tces/pdf/duane%20gilmour.pdf Tom Schaffnit, Ford http://www.cert.org/tces/pdf/tom%20schaffnit.pdf Bob Thibadeau, Wave...Grumman Markham, Tom Honeywell McNamee, Dylan Galois Millen, Jon Wave O Murchu, Liam Symantec Peirce, Ken GM Perez, Ron AMD Prowell, Stacy...ORNL Schaffnit, Tom Ford Thibadeau, Bob Wave Academia Andrews, Archie CMU Blough, Doug Georgia Tech Chen, Peter CMU Eisenbarth

  2. Cooling Computers.

    ERIC Educational Resources Information Center

    Birken, Marvin N.

    1967-01-01

    Numerous decisions must be made in the design of computer air conditioning, each determined by a combination of economics, physical, and esthetic characteristics, and computer requirements. Several computer air conditioning systems are analyzed--(1) underfloor supply and overhead return, (2) underfloor plenum and overhead supply with computer unit…

  3. Pygmalion's Computer.

    ERIC Educational Resources Information Center

    Peelle, Howard A.

    Computers have undoubtedly entered the educational arena, mainly in the areas of computer-assisted instruction (CAI) and artificial intelligence, but whether educators should embrace computers and exactly how they should use them are matters of great debate. The use of computers in support of educational administration is widely accepted.…

  4. Cooling Computers.

    ERIC Educational Resources Information Center

    Birken, Marvin N.

    1967-01-01

    Numerous decisions must be made in the design of computer air conditioning, each determined by a combination of economics, physical, and esthetic characteristics, and computer requirements. Several computer air conditioning systems are analyzed--(1) underfloor supply and overhead return, (2) underfloor plenum and overhead supply with computer unit…

  5. Computer Literacy.

    ERIC Educational Resources Information Center

    South Carolina State Dept. of Education, Columbia.

    This self-instructional manual presents basic information about computers and their capabilities in a series of lessons, each of which contains a list of learner objectives and a series of true-false self-check exercises. The lessons cover: (1) what a computer is and what it can do, and the reasons why computers are used; (2) computer types and…

  6. Computational dosimetry

    SciTech Connect

    Siebert, B.R.L.; Thomas, R.H.

    1996-01-01

    The paper presents a definition of the term ``Computational Dosimetry`` that is interpreted as the sub-discipline of computational physics which is devoted to radiation metrology. It is shown that computational dosimetry is more than a mere collection of computational methods. Computational simulations directed at basic understanding and modelling are important tools provided by computational dosimetry, while another very important application is the support that it can give to the design, optimization and analysis of experiments. However, the primary task of computational dosimetry is to reduce the variance in the determination of absorbed dose (and its related quantities), for example in the disciplines of radiological protection and radiation therapy. In this paper emphasis is given to the discussion of potential pitfalls in the applications of computational dosimetry and recommendations are given for their avoidance. The need for comparison of calculated and experimental data whenever possible is strongly stressed.

  7. Computational Toxicology

    EPA Science Inventory

    Computational toxicology’ is a broad term that encompasses all manner of computer-facilitated informatics, data-mining, and modeling endeavors in relation to toxicology, including exposure modeling, physiologically based pharmacokinetic (PBPK) modeling, dose-response modeling, ...

  8. Computer Recreations.

    ERIC Educational Resources Information Center

    Dewdney, A. K.

    1989-01-01

    Reviews the performance of computer programs for writing poetry and prose, including MARK V. SHANEY, MELL, POETRY GENERATOR, THUNDER THOUGHT, and ORPHEUS. Discusses the writing principles of the programs. Provides additional information on computer magnification techniques. (YP)

  9. Computational Toxicology

    EPA Science Inventory

    Computational toxicology’ is a broad term that encompasses all manner of computer-facilitated informatics, data-mining, and modeling endeavors in relation to toxicology, including exposure modeling, physiologically based pharmacokinetic (PBPK) modeling, dose-response modeling, ...

  10. Quantum computing

    PubMed Central

    Li, Shu-Shen; Long, Gui-Lu; Bai, Feng-Shan; Feng, Song-Lin; Zheng, Hou-Zhi

    2001-01-01

    Quantum computing is a quickly growing research field. This article introduces the basic concepts of quantum computing, recent developments in quantum searching, and decoherence in a possible quantum dot realization. PMID:11562459

  11. Cloud Computing

    SciTech Connect

    Pete Beckman and Ian Foster

    2009-12-04

    Chicago Matters: Beyond Burnham (WTTW). Chicago has become a world center of "cloud computing." Argonne experts Pete Beckman and Ian Foster explain what "cloud computing" is and how you probably already use it on a daily basis.

  12. Library Computing.

    ERIC Educational Resources Information Center

    Library Journal, 1985

    1985-01-01

    This special supplement to "Library Journal" and "School Library Journal" includes articles on technological dependency, promise of computers for reluctant readers, copyright and database downloading, access to neighborhood of Mister Rogers, library acquisitions, circulating personal computers, "microcomputeritis,"…

  13. Flight evaluation of a computer aided low-altitude helicopter flight guidance system

    NASA Technical Reports Server (NTRS)

    Swenson, Harry N.; Jones, Raymond D.; Clark, Raymond

    1993-01-01

    The Flight Systems Development branch of the U.S. Army's Avionics Research and Development Activity (AVRADA) and NASA Ames Research Center have developed for flight testing a Computer Aided Low-Altitude Helicopter Flight (CALAHF) guidance system. The system includes a trajectory-generation algorithm which uses dynamic programming and a helmet-mounted display (HMD) presentation of a pathway-in-the-sky, a phantom aircraft, and flight-path vector/predictor guidance symbology. The trajectory-generation algorithm uses knowledge of the global mission requirements, a digital terrain map, aircraft performance capabilities, and precision navigation information to determine a trajectory between mission way points that seeks valleys to minimize threat exposure. This system was developed and evaluated through extensive use of piloted simulation and has demonstrated a 'pilot centered' concept of automated and integrated navigation and terrain mission planning flight guidance. This system has shown a significant improvement in pilot situational awareness, and mission effectiveness as well as a decrease in training and proficiency time required for a near terrain, nighttime, adverse weather system. AVRADA's NUH-60A STAR (Systems Testbed for Avionics Research) helicopter was specially modified, in house, for the flight evaluation of the CALAHF system. The near terrain trajectory generation algorithm runs on a multiprocessor flight computer. Global Positioning System (GPS) data are integrated with Inertial Navigation Unit (INU) data in the flight computer to provide a precise navigation solution. The near-terrain trajectory and the aircraft state information are passed to a Silicon Graphics computer to provide the graphical 'pilot centered' guidance, presented on a Honeywell Integrated Helmet And Display Sighting System (IHADSS). The system design, piloted simulation, and initial flight test results are presented.

  14. Parallel computation

    NASA Astrophysics Data System (ADS)

    Huberman, Bernardo A.

    1989-11-01

    This paper reviews three different aspects of parallel computation which are useful for physics. The first part deals with special architectures for parallel computing (SIMD and MIMD machines) and their differences, with examples of their uses. The second section discusses the speedup that can be achieved in parallel computation and the constraints generated by the issues of communication and synchrony. The third part describes computation by distributed networks of powerful workstations without global controls and the issues involved in understanding their behavior.

  15. Computer Starters!

    ERIC Educational Resources Information Center

    Instructor, 1983

    1983-01-01

    Instructor's Computer-Using Teachers Board members give practical tips on how to get a classroom ready for a new computer, introduce students to the machine, and help them learn about programing and computer literacy. Safety, scheduling, and supervision requirements are noted. (PP)

  16. Computer Literacy.

    ERIC Educational Resources Information Center

    San Marcos Unified School District, CA.

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: After viewing many computer-literacy programs, we believe San Marcos Junior High School has developed a unique program which will truly develop computer literacy. Our hope is to give all students a comprehensive look at computers as they go through their two years here. They will not only learn the…

  17. Distributed Computing.

    ERIC Educational Resources Information Center

    Ryland, Jane N.

    1988-01-01

    The microcomputer revolution, in which small and large computers have gained tremendously in capability, has created a distributed computing environment. This circumstance presents administrators with the opportunities and the dilemmas of choosing appropriate computing resources for each situation. (Author/MSE)

  18. Computer Literacy.

    ERIC Educational Resources Information Center

    San Marcos Unified School District, CA.

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: After viewing many computer-literacy programs, we believe San Marcos Junior High School has developed a unique program which will truly develop computer literacy. Our hope is to give all students a comprehensive look at computers as they go through their two years here. They will not only learn the…

  19. Distributed Computing.

    ERIC Educational Resources Information Center

    Ryland, Jane N.

    1988-01-01

    The microcomputer revolution, in which small and large computers have gained tremendously in capability, has created a distributed computing environment. This circumstance presents administrators with the opportunities and the dilemmas of choosing appropriate computing resources for each situation. (Author/MSE)

  20. Parallel computers

    SciTech Connect

    Treveaven, P.

    1989-01-01

    This book presents an introduction to object-oriented, functional, and logic parallel computing on which the fifth generation of computer systems will be based. Coverage includes concepts for parallel computing languages, a parallel object-oriented system (DOOM) and its language (POOL), an object-oriented multilevel VLSI simulator using POOL, and implementation of lazy functional languages on parallel architectures.

  1. Children's Computers.

    ERIC Educational Resources Information Center

    Samaras, Anastasia P.

    1996-01-01

    Suggests that teachers and social context determine what young children acquire from computer experiences. Provides anecdotes of teachers working with children who are using a computer program to complete a picture puzzle. The computer allowed teachers to present a problem, witness children's cognitive capabilities, listen to their metacognitive…

  2. Portable Computer

    NASA Technical Reports Server (NTRS)

    1985-01-01

    SPOC, a navigation monitoring computer used by NASA in a 1983 mission, was a modification of a commercial computer called GRiD Compass, produced by GRiD Systems Corporation. SPOC was chosen because of its small size, large storage capacity, and high processing speed. The principal modification required was a fan to cool the computer. SPOC automatically computes position, orbital paths, communication locations, etc. Some of the modifications were adapted for commercial applications. The computer is presently used in offices for conferences, for on-site development, and by the army as part of a field communications systems.

  3. 76 FR 73489 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... limit. A disc fracture could result in an uncontained failure of the disc and damage to the airplane... limit. A disc fracture could result in an uncontained failure of the disc and damage to the airplane. (e...

  4. 77 FR 51892 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-28

    ... of a rim/ web separation of a first stage low-pressure ] turbine (LPT1) rotor assembly. This AD... this AD to prevent uncontained disk separation, engine failure, and damage to the airplane. DATES: This... and CASA 101 airplanes. LPT disk separations in these airplanes have been determined to be higher risk...

  5. 77 FR 9868 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-21

    ... turbofan engines. This proposed AD was prompted by a report of a rim/web separation of a first stage low... uncontained disk separation, leading to fuel tank penetration, fire, personal injury, and damage to the... receive about this proposed AD. Discussion We received a report of a rim/web separation on an LPT1 rotor...

  6. 76 FR 70334 - Airworthiness Directives; Honeywell International Inc. Turboshaft Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    ... governors (PTG) model AL- AB1, installed, that are marked with compliance symbol N or P, or with no compliance symbol, on the PTG identification plate. This AD requires initial and repetitive replacements of...-289-09, 4-301-101-16, and 4-301-101-18, that are marked with compliance symbol N or P, or with no...

  7. Reliability and the design process at Honeywell Avionics Division

    NASA Technical Reports Server (NTRS)

    Bezat, A.

    1981-01-01

    The division's philosophy for designed-in reliability and a comparison of reliability programs for space, manned military aircraft, and commercial aircraft, are presented. Topics include: the reliability interface with design and production; the concept phase through final proposal; the design, development, test and evaluation phase; the production phase; and the commonality among space, military, and commercial avionics.

  8. Developmental Test of the Honeywell Laser Inertial Navigation System (LINS)

    DTIC Science & Technology

    1975-11-01

    c4 Tl A 0 *~ (W)-0 NII~ +I - ++ +f El w 0 IX...Ix I ’, 0 839 41-013 IV) ’,t K..-I - 4 *V: +L - -’- / -/ + IE-- ,-j ~~~~~~E 0- Z Cy~ -- a I 4o . o _ I IB- -) - I,.I "+ Z L’+ I - A Z- wuV~tV) Z- c4 ...C) ___ __ 4 Lfl -ro c ’ CI .Sb E3_ __ _ _ _ 00~U0 i CM 0: I I I r- - r - LJ~ I (W )8, NOllS- I. 1-u-103 UK:- 00 ("Jo0 1 N-.15 "J10 I~ ~~r T’ji-,II C4

  9. Tape Casting of Honeywell PZT Type III Powder.

    DTIC Science & Technology

    1984-02-01

    rate is shown in Figure 3. Sikdar and Ore suggest that the dependence of viscosity 5) I I I7 100 4 3 0 ** * .2 7 10.0 1.0 I I I4 25 50 100 200 400 800...entire range of powder loadings, contrary to the findings of Sikdar and Ore. The data does seen linear for powder contents greater than 10 volume...with increasing shear rate. This behavior is in conflict with the work of Sikdar and Ore (3 ) who show a linearly increasing x value with increasing

  10. 77 FR 32009 - Airworthiness Directives; Honeywell International, Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-31

    ... by two reports of engines experiencing uncontained release of low-pressure (LP) turbine blades. This... LP turbine overspeed leading to uncontained release of the LP turbine blades and damage to the..., Section 44701: ``General requirements.'' Under that section, Congress charges the FAA with promoting...

  11. 77 FR 51695 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-27

    ... of a quality escape of about 8,000 2nd stage low-pressure turbine (LPT2) rotor blades, manufactured... certain LPT2 rotor blades. We are issuing this AD to correct an unsafe condition caused by these blades... LPT2 rotor blades. Comments We gave the public the opportunity to participate in developing this AD....

  12. 77 FR 14312 - Airworthiness Directives; Honeywell International, Inc. Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-09

    ...-pressure (LP) turbine blades. This proposed AD would require operational checks of the engine overspeed... the LP turbine blades and damage to the airplane. DATES: We must receive comments on this proposed AD... release of LP turbine blades. Investigation revealed that the overspeed trip system on both of...

  13. Computer software.

    PubMed

    Rosenthal, L E

    1986-10-01

    Software is the component in a computer system that permits the hardware to perform the various functions that a computer system is capable of doing. The history of software and its development can be traced to the early nineteenth century. All computer systems are designed to utilize the "stored program concept" as first developed by Charles Babbage in the 1850s. The concept was lost until the mid-1940s, when modern computers made their appearance. Today, because of the complex and myriad tasks that a computer system can perform, there has been a differentiation of types of software. There is software designed to perform specific business applications. There is software that controls the overall operation of a computer system. And there is software that is designed to carry out specialized tasks. Regardless of types, software is the most critical component of any computer system. Without it, all one has is a collection of circuits, transistors, and silicone chips.

  14. Computer sciences

    NASA Technical Reports Server (NTRS)

    Smith, Paul H.

    1988-01-01

    The Computer Science Program provides advanced concepts, techniques, system architectures, algorithms, and software for both space and aeronautics information sciences and computer systems. The overall goal is to provide the technical foundation within NASA for the advancement of computing technology in aerospace applications. The research program is improving the state of knowledge of fundamental aerospace computing principles and advancing computing technology in space applications such as software engineering and information extraction from data collected by scientific instruments in space. The program includes the development of special algorithms and techniques to exploit the computing power provided by high performance parallel processors and special purpose architectures. Research is being conducted in the fundamentals of data base logic and improvement techniques for producing reliable computing systems.

  15. Computational psychiatry

    PubMed Central

    Montague, P. Read; Dolan, Raymond J.; Friston, Karl J.; Dayan, Peter

    2013-01-01

    Computational ideas pervade many areas of science and have an integrative explanatory role in neuroscience and cognitive science. However, computational depictions of cognitive function have had surprisingly little impact on the way we assess mental illness because diseases of the mind have not been systematically conceptualized in computational terms. Here, we outline goals and nascent efforts in the new field of computational psychiatry, which seeks to characterize mental dysfunction in terms of aberrant computations over multiple scales. We highlight early efforts in this area that employ reinforcement learning and game theoretic frameworks to elucidate decision-making in health and disease. Looking forwards, we emphasize a need for theory development and large-scale computational phenotyping in human subjects. PMID:22177032

  16. Computational aerothermodynamics

    NASA Technical Reports Server (NTRS)

    Deiwert, George S.; Green, Michael J.

    1987-01-01

    Computational aerothermodynamics (CAT) has in the past contributed to the understanding of real-gas flows encountered by hypervelocity reentry vehicles. With advances in computational fluid dynamics, in the modeling of high temperature phenomena, and in computer capability, CAT is an enabling technology for the design of many future space vehicles. An overview of the current capabilities of CAT is provided by describing available methods and their applications. Technical challenges that need to be met are discussed.

  17. Computer Software.

    ERIC Educational Resources Information Center

    Kay, Alan

    1984-01-01

    Discusses the nature and development of computer software. Programing, programing languages, types of software (including dynamic spreadsheets), and software of the future are among the topics considered. (JN)

  18. Computing Life

    ERIC Educational Resources Information Center

    National Institute of General Medical Sciences (NIGMS), 2009

    2009-01-01

    Computer advances now let researchers quickly search through DNA sequences to find gene variations that could lead to disease, simulate how flu might spread through one's school, and design three-dimensional animations of molecules that rival any video game. By teaming computers and biology, scientists can answer new and old questions that could…

  19. Computer Recreations.

    ERIC Educational Resources Information Center

    Dewdney, A. K.

    1989-01-01

    Discussed are three examples of computer graphics including biomorphs, Truchet tilings, and fractal popcorn. The graphics are shown and the basic algorithm using multiple iteration of a particular function or mathematical operation is described. An illustration of a snail shell created by computer graphics is presented. (YP)

  20. I, Computer

    ERIC Educational Resources Information Center

    Barack, Lauren

    2005-01-01

    What child hasn't chatted with friends through a computer? But chatting with a computer? Some Danish scientists have literally put a face on their latest software program, bringing to virtual life storyteller Hans Christian Andersen, who engages users in actual conversations. The digitized Andersen resides at the Hans Christian Andersen Museum in…

  1. Computer Insecurity.

    ERIC Educational Resources Information Center

    Wilson, David L.

    1994-01-01

    College administrators recently appealed to students and faculty to change their computer passwords after security experts announced that tens of thousands had been stolen by computer hackers. Federal officials are investigating. Such attacks are not uncommon, but the most effective solutions are either inconvenient or cumbersome. (MSE)

  2. Computational Pathology

    PubMed Central

    Louis, David N.; Feldman, Michael; Carter, Alexis B.; Dighe, Anand S.; Pfeifer, John D.; Bry, Lynn; Almeida, Jonas S.; Saltz, Joel; Braun, Jonathan; Tomaszewski, John E.; Gilbertson, John R.; Sinard, John H.; Gerber, Georg K.; Galli, Stephen J.; Golden, Jeffrey A.; Becich, Michael J.

    2016-01-01

    Context We define the scope and needs within the new discipline of computational pathology, a discipline critical to the future of both the practice of pathology and, more broadly, medical practice in general. Objective To define the scope and needs of computational pathology. Data Sources A meeting was convened in Boston, Massachusetts, in July 2014 prior to the annual Association of Pathology Chairs meeting, and it was attended by a variety of pathologists, including individuals highly invested in pathology informatics as well as chairs of pathology departments. Conclusions The meeting made recommendations to promote computational pathology, including clearly defining the field and articulating its value propositions; asserting that the value propositions for health care systems must include means to incorporate robust computational approaches to implement data-driven methods that aid in guiding individual and population health care; leveraging computational pathology as a center for data interpretation in modern health care systems; stating that realizing the value proposition will require working with institutional administrations, other departments, and pathology colleagues; declaring that a robust pipeline should be fostered that trains and develops future computational pathologists, for those with both pathology and non-pathology backgrounds; and deciding that computational pathology should serve as a hub for data-related research in health care systems. The dissemination of these recommendations to pathology and bioinformatics departments should help facilitate the development of computational pathology. PMID:26098131

  3. Cloud Computing

    DTIC Science & Technology

    2009-11-12

    Eucalyptus Systems • Provides an open-source application that can be used to implement a cloud computing environment on a datacenter • Trying to establish an...edgeplatform.html • Amazon Elastic Compute Cloud (EC2): http://aws.amazon.com/ec2/ • Amazon Simple Storage Solution (S3): http://aws.amazon.com/s3/ • Eucalyptus

  4. Computer Insecurity.

    ERIC Educational Resources Information Center

    Wilson, David L.

    1994-01-01

    College administrators recently appealed to students and faculty to change their computer passwords after security experts announced that tens of thousands had been stolen by computer hackers. Federal officials are investigating. Such attacks are not uncommon, but the most effective solutions are either inconvenient or cumbersome. (MSE)

  5. Computer News

    ERIC Educational Resources Information Center

    Science Activities: Classroom Projects and Curriculum Ideas, 2007

    2007-01-01

    This article presents several news stories about computers and technology. (1) Applied Science Associates of Narragansett, Rhode Island is providing computer modeling technology to help locate the remains to the USS Bonhomme Richard, which sank in 1779 after claiming a Revolutionary War victory. (2) Whyville, the leading edu-tainment virtual world…

  6. Computer News

    ERIC Educational Resources Information Center

    Science Activities: Classroom Projects and Curriculum Ideas, 2007

    2007-01-01

    This article presents several news stories about computers and technology. (1) Applied Science Associates of Narragansett, Rhode Island is providing computer modeling technology to help locate the remains to the USS Bonhomme Richard, which sank in 1779 after claiming a Revolutionary War victory. (2) Whyville, the leading edu-tainment virtual world…

  7. Computational astrophysics

    NASA Technical Reports Server (NTRS)

    Miller, Richard H.

    1987-01-01

    Astronomy is an area of applied physics in which unusually beautiful objects challenge the imagination to explain observed phenomena in terms of known laws of physics. It is a field that has stimulated the development of physical laws and of mathematical and computational methods. Current computational applications are discussed in terms of stellar and galactic evolution, galactic dynamics, and particle motions.

  8. Computer Recreations.

    ERIC Educational Resources Information Center

    Dewdney, A. K.

    1989-01-01

    Discussed are three examples of computer graphics including biomorphs, Truchet tilings, and fractal popcorn. The graphics are shown and the basic algorithm using multiple iteration of a particular function or mathematical operation is described. An illustration of a snail shell created by computer graphics is presented. (YP)

  9. I, Computer

    ERIC Educational Resources Information Center

    Barack, Lauren

    2005-01-01

    What child hasn't chatted with friends through a computer? But chatting with a computer? Some Danish scientists have literally put a face on their latest software program, bringing to virtual life storyteller Hans Christian Andersen, who engages users in actual conversations. The digitized Andersen resides at the Hans Christian Andersen Museum in…

  10. Grid Computing

    NASA Astrophysics Data System (ADS)

    Foster, Ian

    2001-08-01

    The term "Grid Computing" refers to the use, for computational purposes, of emerging distributed Grid infrastructures: that is, network and middleware services designed to provide on-demand and high-performance access to all important computational resources within an organization or community. Grid computing promises to enable both evolutionary and revolutionary changes in the practice of computational science and engineering based on new application modalities such as high-speed distributed analysis of large datasets, collaborative engineering and visualization, desktop access to computation via "science portals," rapid parameter studies and Monte Carlo simulations that use all available resources within an organization, and online analysis of data from scientific instruments. In this article, I examine the status of Grid computing circa 2000, briefly reviewing some relevant history, outlining major current Grid research and development activities, and pointing out likely directions for future work. I also present a number of case studies, selected to illustrate the potential of Grid computing in various areas of science.

  11. Computer Graphics.

    ERIC Educational Resources Information Center

    Halpern, Jeanne W.

    1970-01-01

    Computer graphics have been called the most exciting development in computer technology. At the University of Michigan, three kinds of graphics output equipment are now being used: symbolic printers, line plotters or drafting devices, and cathode-ray tubes (CRT). Six examples are given that demonstrate the range of graphics use at the University.…

  12. Optical computing.

    NASA Technical Reports Server (NTRS)

    Stroke, G. W.

    1972-01-01

    Applications of the optical computer include an approach for increasing the sharpness of images obtained from the most powerful electron microscopes and fingerprint/credit card identification. The information-handling capability of the various optical computing processes is very great. Modern synthetic-aperture radars scan upward of 100,000 resolvable elements per second. Fields which have assumed major importance on the basis of optical computing principles are optical image deblurring, coherent side-looking synthetic-aperture radar, and correlative pattern recognition. Some examples of the most dramatic image deblurring results are shown.

  13. Optical computing.

    NASA Technical Reports Server (NTRS)

    Stroke, G. W.

    1972-01-01

    Applications of the optical computer include an approach for increasing the sharpness of images obtained from the most powerful electron microscopes and fingerprint/credit card identification. The information-handling capability of the various optical computing processes is very great. Modern synthetic-aperture radars scan upward of 100,000 resolvable elements per second. Fields which have assumed major importance on the basis of optical computing principles are optical image deblurring, coherent side-looking synthetic-aperture radar, and correlative pattern recognition. Some examples of the most dramatic image deblurring results are shown.

  14. Evolutionary Computing

    SciTech Connect

    Patton, Robert M; Cui, Xiaohui; Jiao, Yu; Potok, Thomas E

    2008-01-01

    The rate at which information overwhelms humans is significantly more than the rate at which humans have learned to process, analyze, and leverage this information. To overcome this challenge, new methods of computing must be formulated, and scientist and engineers have looked to nature for inspiration in developing these new methods. Consequently, evolutionary computing has emerged as new paradigm for computing, and has rapidly demonstrated its ability to solve real-world problems where traditional techniques have failed. This field of work has now become quite broad and encompasses areas ranging from artificial life to neural networks. This chapter focuses specifically on two sub-areas of nature-inspired computing: Evolutionary Algorithms and Swarm Intelligence.

  15. Computer Calculus.

    ERIC Educational Resources Information Center

    Steen, Lynn Arthur

    1981-01-01

    The development of symbolic computer algebra designed to manipulate abstract mathematical expressions is discussed. The ability of this software to mimic the standard patterns of human problem solving represents a major advance toward "true" artificial intelligence. (MP)

  16. Computer Poker

    ERIC Educational Resources Information Center

    Findler, Nicholas V.

    1978-01-01

    This familiar card game has interested mathematicians, economists, and psychologists as a model of decision-making in the real world. It is now serving as a vehicle for investigations in computer science. (Author/MA)

  17. Personal Computers.

    ERIC Educational Resources Information Center

    Toong, Hoo-min D.; Gupta, Amar

    1982-01-01

    Describes the hardware, software, applications, and current proliferation of personal computers (microcomputers). Includes discussions of microprocessors, memory, output (including printers), application programs, the microcomputer industry, and major microcomputer manufacturers (Apple, Radio Shack, Commodore, and IBM). (JN)

  18. Computer Stimulation

    ERIC Educational Resources Information Center

    Moore, John W.; Moore, Elizabeth

    1977-01-01

    Discusses computer simulation approach of Limits to Growth, in which interactions of five variables (population, pollution, resources, food per capita, and industrial output per capita) indicate status of the world. Reviews other books that predict future of the world. (CS)

  19. Quantum Computing

    DTIC Science & Technology

    1998-04-01

    information representation and processing technology, although faster than the wheels and gears of the Charles Babbage computation machine, is still in...the same computational complexity class as the Babbage machine, with bits of information represented by entities which obey classical (non-quantum...nuclear double resonances Charles M Bowden and Jonathan P. Dowling Weapons Sciences Directorate, AMSMI-RD-WS-ST Missile Research, Development, and

  20. LHC Computing

    SciTech Connect

    Lincoln, Don

    2015-07-28

    The LHC is the world’s highest energy particle accelerator and scientists use it to record an unprecedented amount of data. This data is recorded in electronic format and it requires an enormous computational infrastructure to convert the raw data into conclusions about the fundamental rules that govern matter. In this video, Fermilab’s Dr. Don Lincoln gives us a sense of just how much data is involved and the incredible computer resources that makes it all possible.

  1. Computational chemistry

    NASA Technical Reports Server (NTRS)

    Arnold, J. O.

    1987-01-01

    With the advent of supercomputers, modern computational chemistry algorithms and codes, a powerful tool was created to help fill NASA's continuing need for information on the properties of matter in hostile or unusual environments. Computational resources provided under the National Aerodynamics Simulator (NAS) program were a cornerstone for recent advancements in this field. Properties of gases, materials, and their interactions can be determined from solutions of the governing equations. In the case of gases, for example, radiative transition probabilites per particle, bond-dissociation energies, and rates of simple chemical reactions can be determined computationally as reliably as from experiment. The data are proving to be quite valuable in providing inputs to real-gas flow simulation codes used to compute aerothermodynamic loads on NASA's aeroassist orbital transfer vehicles and a host of problems related to the National Aerospace Plane Program. Although more approximate, similar solutions can be obtained for ensembles of atoms simulating small particles of materials with and without the presence of gases. Computational chemistry has application in studying catalysis, properties of polymers, all of interest to various NASA missions, including those previously mentioned. In addition to discussing these applications of computational chemistry within NASA, the governing equations and the need for supercomputers for their solution is outlined.

  2. Computational oncology.

    PubMed

    Lefor, Alan T

    2011-08-01

    Oncology research has traditionally been conducted using techniques from the biological sciences. The new field of computational oncology has forged a new relationship between the physical sciences and oncology to further advance research. By applying physics and mathematics to oncologic problems, new insights will emerge into the pathogenesis and treatment of malignancies. One major area of investigation in computational oncology centers around the acquisition and analysis of data, using improved computing hardware and software. Large databases of cellular pathways are being analyzed to understand the interrelationship among complex biological processes. Computer-aided detection is being applied to the analysis of routine imaging data including mammography and chest imaging to improve the accuracy and detection rate for population screening. The second major area of investigation uses computers to construct sophisticated mathematical models of individual cancer cells as well as larger systems using partial differential equations. These models are further refined with clinically available information to more accurately reflect living systems. One of the major obstacles in the partnership between physical scientists and the oncology community is communications. Standard ways to convey information must be developed. Future progress in computational oncology will depend on close collaboration between clinicians and investigators to further the understanding of cancer using these new approaches.

  3. Chromatin Computation

    PubMed Central

    Bryant, Barbara

    2012-01-01

    In living cells, DNA is packaged along with protein and RNA into chromatin. Chemical modifications to nucleotides and histone proteins are added, removed and recognized by multi-functional molecular complexes. Here I define a new computational model, in which chromatin modifications are information units that can be written onto a one-dimensional string of nucleosomes, analogous to the symbols written onto cells of a Turing machine tape, and chromatin-modifying complexes are modeled as read-write rules that operate on a finite set of adjacent nucleosomes. I illustrate the use of this “chromatin computer” to solve an instance of the Hamiltonian path problem. I prove that chromatin computers are computationally universal – and therefore more powerful than the logic circuits often used to model transcription factor control of gene expression. Features of biological chromatin provide a rich instruction set for efficient computation of nontrivial algorithms in biological time scales. Modeling chromatin as a computer shifts how we think about chromatin function, suggests new approaches to medical intervention, and lays the groundwork for the engineering of a new class of biological computing machines. PMID:22567109

  4. [DNA computing].

    PubMed

    Błasiak, Janusz; Krasiński, Tadeusz; Popławski, Tomasz; Sakowski, Sebastian

    2011-01-01

    Biocomputers can be an alternative for traditional "silicon-based" computers, which continuous development may be limited due to further miniaturization (imposed by the Heisenberg Uncertainty Principle) and increasing the amount of information between the central processing unit and the main memory (von Neuman bottleneck). The idea of DNA computing came true for the first time in 1994, when Adleman solved the Hamiltonian Path Problem using short DNA oligomers and DNA ligase. In the early 2000s a series of biocomputer models was presented with a seminal work of Shapiro and his colleguas who presented molecular 2 state finite automaton, in which the restriction enzyme, FokI, constituted hardware and short DNA oligomers were software as well as input/output signals. DNA molecules provided also energy for this machine. DNA computing can be exploited in many applications, from study on the gene expression pattern to diagnosis and therapy of cancer. The idea of DNA computing is still in progress in research both in vitro and in vivo and at least promising results of these research allow to have a hope for a breakthrough in the computer science.

  5. Computational mechanics

    SciTech Connect

    Goudreau, G.L.

    1993-03-01

    The Computational Mechanics thrust area sponsors research into the underlying solid, structural and fluid mechanics and heat transfer necessary for the development of state-of-the-art general purpose computational software. The scale of computational capability spans office workstations, departmental computer servers, and Cray-class supercomputers. The DYNA, NIKE, and TOPAZ codes have achieved world fame through our broad collaborators program, in addition to their strong support of on-going Lawrence Livermore National Laboratory (LLNL) programs. Several technology transfer initiatives have been based on these established codes, teaming LLNL analysts and researchers with counterparts in industry, extending code capability to specific industrial interests of casting, metalforming, and automobile crash dynamics. The next-generation solid/structural mechanics code, ParaDyn, is targeted toward massively parallel computers, which will extend performance from gigaflop to teraflop power. Our work for FY-92 is described in the following eight articles: (1) Solution Strategies: New Approaches for Strongly Nonlinear Quasistatic Problems Using DYNA3D; (2) Enhanced Enforcement of Mechanical Contact: The Method of Augmented Lagrangians; (3) ParaDyn: New Generation Solid/Structural Mechanics Codes for Massively Parallel Processors; (4) Composite Damage Modeling; (5) HYDRA: A Parallel/Vector Flow Solver for Three-Dimensional, Transient, Incompressible Viscous How; (6) Development and Testing of the TRIM3D Radiation Heat Transfer Code; (7) A Methodology for Calculating the Seismic Response of Critical Structures; and (8) Reinforced Concrete Damage Modeling.

  6. Quantum computers.

    PubMed

    Ladd, T D; Jelezko, F; Laflamme, R; Nakamura, Y; Monroe, C; O'Brien, J L

    2010-03-04

    Over the past several decades, quantum information science has emerged to seek answers to the question: can we gain some advantage by storing, transmitting and processing information encoded in systems that exhibit unique quantum properties? Today it is understood that the answer is yes, and many research groups around the world are working towards the highly ambitious technological goal of building a quantum computer, which would dramatically improve computational power for particular tasks. A number of physical systems, spanning much of modern physics, are being developed for quantum computation. However, it remains unclear which technology, if any, will ultimately prove successful. Here we describe the latest developments for each of the leading approaches and explain the major challenges for the future.

  7. Qubus computation

    NASA Astrophysics Data System (ADS)

    Munro, W. J.; Nemoto, Kae; Spiller, T. P.; van Loock, P.; Braunstein, Samuel L.; Milburn, G. J.

    2006-08-01

    Processing information quantum mechanically is known to enable new communication and computational scenarios that cannot be accessed with conventional information technology (IT). We present here a new approach to scalable quantum computing---a "qubus computer"---which realizes qubit measurement and quantum gates through interacting qubits with a quantum communication bus mode. The qubits could be "static" matter qubits or "flying" optical qubits, but the scheme we focus on here is particularly suited to matter qubits. Universal two-qubit quantum gates may be effected by schemes which involve measurement of the bus mode, or by schemes where the bus disentangles automatically and no measurement is needed. This approach enables a parity gate between qubits, mediated by a bus, enabling near-deterministic Bell state measurement and entangling gates. Our approach is therefore the basis for very efficient, scalable QIP, and provides a natural method for distributing such processing, combining it with quantum communication.

  8. Computational Psychiatry

    PubMed Central

    Wang, Xiao-Jing; Krystal, John H.

    2014-01-01

    Psychiatric disorders such as autism and schizophrenia arise from abnormalities in brain systems that underlie cognitive, emotional and social functions. The brain is enormously complex and its abundant feedback loops on multiple scales preclude intuitive explication of circuit functions. In close interplay with experiments, theory and computational modeling are essential for understanding how, precisely, neural circuits generate flexible behaviors and their impairments give rise to psychiatric symptoms. This Perspective highlights recent progress in applying computational neuroscience to the study of mental disorders. We outline basic approaches, including identification of core deficits that cut across disease categories, biologically-realistic modeling bridging cellular and synaptic mechanisms with behavior, model-aided diagnosis. The need for new research strategies in psychiatry is urgent. Computational psychiatry potentially provides powerful tools for elucidating pathophysiology that may inform both diagnosis and treatment. To achieve this promise will require investment in cross-disciplinary training and research in this nascent field. PMID:25442941

  9. Computational mechanics

    SciTech Connect

    Raboin, P J

    1998-01-01

    The Computational Mechanics thrust area is a vital and growing facet of the Mechanical Engineering Department at Lawrence Livermore National Laboratory (LLNL). This work supports the development of computational analysis tools in the areas of structural mechanics and heat transfer. Over 75 analysts depend on thrust area-supported software running on a variety of computing platforms to meet the demands of LLNL programs. Interactions with the Department of Defense (DOD) High Performance Computing and Modernization Program and the Defense Special Weapons Agency are of special importance as they support our ParaDyn project in its development of new parallel capabilities for DYNA3D. Working with DOD customers has been invaluable to driving this technology in directions mutually beneficial to the Department of Energy. Other projects associated with the Computational Mechanics thrust area include work with the Partnership for a New Generation Vehicle (PNGV) for ''Springback Predictability'' and with the Federal Aviation Administration (FAA) for the ''Development of Methodologies for Evaluating Containment and Mitigation of Uncontained Engine Debris.'' In this report for FY-97, there are five articles detailing three code development activities and two projects that synthesized new code capabilities with new analytic research in damage/failure and biomechanics. The article this year are: (1) Energy- and Momentum-Conserving Rigid-Body Contact for NIKE3D and DYNA3D; (2) Computational Modeling of Prosthetics: A New Approach to Implant Design; (3) Characterization of Laser-Induced Mechanical Failure Damage of Optical Components; (4) Parallel Algorithm Research for Solid Mechanics Applications Using Finite Element Analysis; and (5) An Accurate One-Step Elasto-Plasticity Algorithm for Shell Elements in DYNA3D.

  10. LHC Computing

    ScienceCinema

    Lincoln, Don

    2016-07-12

    The LHC is the world’s highest energy particle accelerator and scientists use it to record an unprecedented amount of data. This data is recorded in electronic format and it requires an enormous computational infrastructure to convert the raw data into conclusions about the fundamental rules that govern matter. In this video, Fermilab’s Dr. Don Lincoln gives us a sense of just how much data is involved and the incredible computer resources that makes it all possible.

  11. Computational vision

    NASA Technical Reports Server (NTRS)

    Barrow, H. G.; Tenenbaum, J. M.

    1981-01-01

    The range of fundamental computational principles underlying human vision that equally apply to artificial and natural systems is surveyed. There emerges from research a view of the structuring of vision systems as a sequence of levels of representation, with the initial levels being primarily iconic (edges, regions, gradients) and the highest symbolic (surfaces, objects, scenes). Intermediate levels are constrained by information made available by preceding levels and information required by subsequent levels. In particular, it appears that physical and three-dimensional surface characteristics provide a critical transition from iconic to symbolic representations. A plausible vision system design incorporating these principles is outlined, and its key computational processes are elaborated.

  12. Computer systems

    NASA Technical Reports Server (NTRS)

    Olsen, Lola

    1992-01-01

    In addition to the discussions, Ocean Climate Data Workshop hosts gave participants an opportunity to hear about, see, and test for themselves some of the latest computer tools now available for those studying climate change and the oceans. Six speakers described computer systems and their functions. The introductory talks were followed by demonstrations to small groups of participants and some opportunities for participants to get hands-on experience. After this familiarization period, attendees were invited to return during the course of the Workshop and have one-on-one discussions and further hands-on experience with these systems. Brief summaries or abstracts of introductory presentations are addressed.

  13. Computer viruses

    NASA Technical Reports Server (NTRS)

    Denning, Peter J.

    1988-01-01

    The worm, Trojan horse, bacterium, and virus are destructive programs that attack information stored in a computer's memory. Virus programs, which propagate by incorporating copies of themselves into other programs, are a growing menace in the late-1980s world of unprotected, networked workstations and personal computers. Limited immunity is offered by memory protection hardware, digitally authenticated object programs,and antibody programs that kill specific viruses. Additional immunity can be gained from the practice of digital hygiene, primarily the refusal to use software from untrusted sources. Full immunity requires attention in a social dimension, the accountability of programmers.

  14. Computational Physics.

    ERIC Educational Resources Information Center

    Borcherds, P. H.

    1986-01-01

    Describes an optional course in "computational physics" offered at the University of Birmingham. Includes an introduction to numerical methods and presents exercises involving fast-Fourier transforms, non-linear least-squares, Monte Carlo methods, and the three-body problem. Recommends adding laboratory work into the course in the…

  15. Computer Corner.

    ERIC Educational Resources Information Center

    Smith, David A.; And Others

    1986-01-01

    APL was invented specifically as a mathematical teaching tool, and is an excellent vehicle for teaching mathematical concepts using computers. This article illustrates the use of APL in teaching many different topics in mathematics, including logic, set theory, functions, statistics, linear algebra, and matrices. (MNS)

  16. COMPUTATIONAL SOCIOLINGUISTICS.

    ERIC Educational Resources Information Center

    SEDELOW, WALTER A., JR.

    THE USE OF THE COMPUTER MAY BE ONE OF THE WAYS IN WHICH VARIED LINGUISTIC INTERESTS (SOCIOLINGUISTICS, PSYCHOLINGUISTICS) COME TO BE RENDERED INTERRELATED AND EVEN INTELLECTUALLY COHERENT. (THE CRITERION OF COHERENCE IS SET HERE AT MONISM AS TO MODELS.) ONE OF THE AUTHOR'S MAJOR INTERESTS IS A SYSTEMATIC APPROACH TO SCIENTIFIC CREATIVITY,…

  17. Computational aeroelasticity

    NASA Technical Reports Server (NTRS)

    Edwards, John W.

    1993-01-01

    Recent large-scale studies of computational unsteady aerodynamics for aeroelastic applications are reviewed. The variety of fluid dynamic flow models available to address such computations are illustrated in two cases: (1) 2D Navier-Stokes (NS) equations illustrating the highest level of modeling usually employed and (2) the transonic small-disturbance potential equation representing the entry level for nonlinear flow modeling. Estimates of computer resources necessary to produce accurate converged results are given. Application of potential and NS equation codes for flows which are generally at lower angles and high speeds are addressed, including (1) the treatment of wings and configuration details using potential equation codes and (2) recent NS code calculations of complete vehicle configurations. Attention is given to high-angle conditions involving separated vortex-dominated flows. Accuracy requirements for vortex shedding over airfoils is discussed and the calculation of vorticity convected over significant distances is addressed. Steady CFD computations about delta wings at high angles are given, including a discussion of the required level of fluid dynamic flow modeling. Recent results on unsteady 'buffetlike flow' about complete vehicle models are reviewed.

  18. Computer Corner.

    ERIC Educational Resources Information Center

    Mason, Margie

    1985-01-01

    This article: describes how to prevent pins on game paddles from breaking; suggests using needlepoint books for ideas to design computer graphics; lists a BASIC program to create a Christmas tree, with extension activities; suggests a LOGO Christmas activity; and describes a book on the development of microcomputers. (JN)

  19. Business Computers.

    ERIC Educational Resources Information Center

    Canipe, Stephen L.

    A brief definition of some fundamentals of microcomputers and of the ways they may be used in small businesses can help potential buyers make informed purchases. Hardware (the mechanical devices from which computers are made) described here are the video display, keyboard, central processing unit, "random access" and "read only" memories, cassette…

  20. Computer Guerrillas.

    ERIC Educational Resources Information Center

    Immel, A. Richard

    1983-01-01

    Describes several cases in which microcomputers were used to prevent large organizations (e.g., utility companies, U.S. Government Forestry Commission) from carrying out actions considered not to be in the public's best interests. The use of the computers by social activitists in their efforts to halt environmental destruction is discussed. (EAO)

  1. Computational trigonometry

    SciTech Connect

    Gustafson, K.

    1994-12-31

    By means of the author`s earlier theory of antieigenvalues and antieigenvectors, a new computational approach to iterative methods is presented. This enables an explicit trigonometric understanding of iterative convergence and provides new insights into the sharpness of error bounds. Direct applications to Gradient descent, Conjugate gradient, GCR(k), Orthomin, CGN, GMRES, CGS, and other matrix iterative schemes will be given.

  2. Computer Recreations.

    ERIC Educational Resources Information Center

    Dewdney, A. K.

    1988-01-01

    Describes the creation of the computer program "BOUNCE," designed to simulate a weighted piston coming into equilibrium with a cloud of bouncing balls. The model follows the ideal gas law. Utilizes the critical event technique to create the model. Discusses another program, "BOOM," which simulates a chain reaction. (CW)

  3. Networking computers.

    PubMed

    McBride, D C

    1997-03-01

    This decade the role of the personal computer has shifted dramatically from a desktop device designed to increase individual productivity and efficiency to an instrument of communication linking people and machines in different places with one another. A computer in one city can communicate with another that may be thousands of miles away. Networking is how this is accomplished. Just like the voice network used by the telephone, computer networks transmit data and other information via modems over these same telephone lines. A network can be created over both short and long distances. Networks can be established within a hospital or medical building or over many hospitals or buildings covering many geographic areas. Those confined to one location are called LANs, local area networks. Those that link computers in one building to those at other locations are known as WANs, or wide area networks. The ultimate wide area network is the one we've all been hearing so much about these days--the Internet, and its World Wide Web. Setting up a network is a process that requires careful planning and commitment. To avoid potential pitfalls and to make certain the network you establish meets your needs today and several years down the road, several steps need to be followed. This article reviews the initial steps involved in getting ready to network.

  4. Computational Hearing

    DTIC Science & Technology

    1998-11-01

    ranging from the anatomy and physiology of the auditory pathway to the perception of speech and music under both ideal and not-so-ideal (but more...physiology of various parts of the auditory pathway, to auditory prostheses, speech and audio coding, computational models of pitch and timbre , the role of

  5. Computational Musicology.

    ERIC Educational Resources Information Center

    Bel, Bernard; Vecchione, Bernard

    1993-01-01

    Asserts that a revolution has been occurring in musicology since the 1970s. Contends that music has change from being only a source of emotion to appearing more open to science and techniques based on computer technology. Describes recent research and other writings about the topic and provides an extensive bibliography. (CFR)

  6. Business Computers.

    ERIC Educational Resources Information Center

    Canipe, Stephen L.

    A brief definition of some fundamentals of microcomputers and of the ways they may be used in small businesses can help potential buyers make informed purchases. Hardware (the mechanical devices from which computers are made) described here are the video display, keyboard, central processing unit, "random access" and "read only" memories, cassette…

  7. Library Computing.

    ERIC Educational Resources Information Center

    Dayall, Susan A.; And Others

    1987-01-01

    Six articles on computers in libraries discuss training librarians and staff to use new software; appropriate technology; system upgrades of the Research Libraries Group's information system; pre-IBM PC microcomputers; multiuser systems for small to medium-sized libraries; and a library user's view of the traditional card catalog. (EM)

  8. Computational Estimation

    ERIC Educational Resources Information Center

    Fung, Maria G.; Latulippe, Christine L.

    2010-01-01

    Elementary school teachers are responsible for constructing the foundation of number sense in youngsters, and so it is recommended that teacher-training programs include an emphasis on number sense to ensure the development of dynamic, productive computation and estimation skills in students. To better prepare preservice elementary school teachers…

  9. Computational Mathematics

    DTIC Science & Technology

    2012-03-06

    Marsha Berger, NYU) Inclusion of the Adaptation/Adjoint module, Embedded Boundary Methods in the software package Cart3D --- Transition to NASA...ONR, DOE, AFRL, DIA Cart3D used for computing Formation Flight to reduce drag and improve energy efficiency Application to Explosively Formed

  10. Library Computing.

    ERIC Educational Resources Information Center

    Goodgion, Laurel; And Others

    1986-01-01

    Eight articles in special supplement to "Library Journal" and "School Library Journal" cover a computer program called "Byte into Books"; microcomputers and the small library; creating databases with students; online searching with a microcomputer; quality automation software; Meckler Publishing Company's…

  11. Bacteria as computers making computers

    PubMed Central

    Danchin, Antoine

    2009-01-01

    Various efforts to integrate biological knowledge into networks of interactions have produced a lively microbial systems biology. Putting molecular biology and computer sciences in perspective, we review another trend in systems biology, in which recursivity and information replace the usual concepts of differential equations, feedback and feedforward loops and the like. Noting that the processes of gene expression separate the genome from the cell machinery, we analyse the role of the separation between machine and program in computers. However, computers do not make computers. For cells to make cells requires a specific organization of the genetic program, which we investigate using available knowledge. Microbial genomes are organized into a paleome (the name emphasizes the role of the corresponding functions from the time of the origin of life), comprising a constructor and a replicator, and a cenome (emphasizing community-relevant genes), made up of genes that permit life in a particular context. The cell duplication process supposes rejuvenation of the machine and replication of the program. The paleome also possesses genes that enable information to accumulate in a ratchet-like process down the generations. The systems biology must include the dynamics of information creation in its future developments. PMID:19016882

  12. Computational Combustion

    SciTech Connect

    Westbrook, C K; Mizobuchi, Y; Poinsot, T J; Smith, P J; Warnatz, J

    2004-08-26

    Progress in the field of computational combustion over the past 50 years is reviewed. Particular attention is given to those classes of models that are common to most system modeling efforts, including fluid dynamics, chemical kinetics, liquid sprays, and turbulent flame models. The developments in combustion modeling are placed into the time-dependent context of the accompanying exponential growth in computer capabilities and Moore's Law. Superimposed on this steady growth, the occasional sudden advances in modeling capabilities are identified and their impacts are discussed. Integration of submodels into system models for spark ignition, diesel and homogeneous charge, compression ignition engines, surface and catalytic combustion, pulse combustion, and detonations are described. Finally, the current state of combustion modeling is illustrated by descriptions of a very large jet lifted 3D turbulent hydrogen flame with direct numerical simulation and 3D large eddy simulations of practical gas burner combustion devices.

  13. Rubbery computing

    NASA Astrophysics Data System (ADS)

    Wilson, Katherine E.; Henke, E.-F. Markus; Slipher, Geoffrey A.; Anderson, Iain A.

    2017-04-01

    Electromechanically coupled dielectric elastomer actuators (DEAs) and dielectric elastomer switches (DESs) may form digital logic circuitry made entirely of soft and flexible materials. The expansion in planar area of a DEA exerts force across a DES, which is a soft electrode with strain-dependent resistivity. When compressed, the DES drops steeply in resistance and changes state from non-conducting to conducting. Logic operators may be achieved with different arrangements of interacting DE actuators and switches. We demonstrate combinatorial logic elements, including the fundamental Boolean logic gates, as well as sequential logic elements, including latches and flip-flops. With both data storage and signal processing abilities, the necessary calculating components of a soft computer are available. A noteworthy advantage of a soft computer with mechanosensitive DESs is the potential for responding to environmental strains while locally processing information and generating a reaction, like a muscle reflex.

  14. RATIO COMPUTER

    DOEpatents

    Post, R.F.

    1958-11-11

    An electronic computer circuit is described for producing an output voltage proportional to the product or quotient of tbe voltages of a pair of input signals. ln essence, the disclosed invention provides a computer having two channels adapted to receive separate input signals and each having amplifiers with like fixed amplification factors and like negatlve feedback amplifiers. One of the channels receives a constant signal for comparison purposes, whereby a difference signal is produced to control the amplification factors of the variable feedback amplifiers. The output of the other channel is thereby proportional to the product or quotient of input signals depending upon the relation of input to fixed signals in the first mentioned channel.

  15. Computational Physics

    NASA Astrophysics Data System (ADS)

    Thijssen, Jos

    2013-10-01

    1. Introduction; 2. Quantum scattering with a spherically symmetric potential; 3. The variational method for the Schrödinger equation; 4. The Hartree-Fock method; 5. Density functional theory; 6. Solving the Schrödinger equation in periodic solids; 7. Classical equilibrium statistical mechanics; 8. Molecular dynamics simulations; 9. Quantum molecular dynamics; 10. The Monte Carlo method; 11. Transfer matrix and diagonalisation of spin chains; 12. Quantum Monte Carlo methods; 13. The infinite element method for partial differential equations; 14. The lattice Boltzmann method for fluid dynamics; 15. Computational methods for lattice field theories; 16. High performance computing and parallelism; Appendix A. Numerical methods; Appendix B. Random number generators; References; Index.

  16. Computer Game

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Using NASA studies of advanced lunar exploration and colonization, KDT Industries, Inc. and Wesson International have developed MOONBASE, a computer game. The player, or team commander, must build and operate a lunar base using NASA technology. He has 10 years to explore the surface, select a site and assemble structures brought from Earth into an efficient base. The game was introduced in 1991 by Texas Space Grant Consortium.

  17. Computational Electromagnetics

    DTIC Science & Technology

    2011-02-20

    a collaboration between Caltech’s postdoctoral associate N. Albin and OB) have shown that, for a variety of reasons, the first-order...KZK approximation", Nathan Albin , Oscar P. Bruno, Theresa Y. Cheung and Robin O. Cleveland, preprint, (2011) "A Spectral FC Solver for the Compressible...Navier-Stokes Equations in General Domains I: Explicit time-stepping" Nathan Albin and Oscar P. Bruno, To appear in Journal of Computational Physics

  18. Singularity computations

    NASA Technical Reports Server (NTRS)

    Swedlow, J. L.

    1976-01-01

    An approach is described for singularity computations based on a numerical method for elastoplastic flow to delineate radial and angular distribution of field quantities and measure the intensity of the singularity. The method is applicable to problems in solid mechanics and lends itself to certain types of heat flow and fluid motion studies. Its use is not limited to linear, elastic, small strain, or two-dimensional situations.

  19. Computer files.

    PubMed

    Malik, M

    1995-02-01

    From what has been said, several recommendations can be made for users of small personal computers regardless of which operating system they use. If your computer has a large hard disk not specially required by any single application, organize the disk into a small number of volumes. You will then be using the computer as if it had several smaller disks, which will help you to create a logical file structure. The size of individual volumes has to be selected carefully with respect to the files kept in each volume. Otherwise, it may be that you will have too much space in one volume and not enough in another. In each volume, organize the structure of directories and subdirectories logically so that they correspond to the logic of your file content. Be aware of the fact that the directories suggested as default when installing new software are often not the optimum. For instance, it is better to put different graphics packages under a common subdirectory rather than to install them at the same level as all other packages including statistics, text processors, etc. Create a special directory for each task you use the computer. Note that it is a bad practice to keep many different and logically unsorted files in the root directory of any of your volumes. Only system and important service files should be kept there. Although any file may be written all over the disk, access to it will be faster if it is written over the minimum number of cylinders. From time to time, use special programs that reorganize your files in this way.(ABSTRACT TRUNCATED AT 250 WORDS)

  20. Computational enzymology.

    PubMed

    Lonsdale, Richard; Ranaghan, Kara E; Mulholland, Adrian J

    2010-04-14

    Molecular simulations and modelling are changing the science of enzymology. Calculations can provide detailed, atomic-level insight into the fundamental mechanisms of biological catalysts. Computational enzymology is a rapidly developing area, and is testing theories of catalysis, challenging 'textbook' mechanisms, and identifying novel catalytic mechanisms. Increasingly, modelling is contributing directly to experimental studies of enzyme-catalysed reactions. Potential practical applications include interpretation of experimental data, catalyst design and drug development.

  1. Quantum Computers

    DTIC Science & Technology

    2010-03-04

    empty valence-band states ) into a localized poten- tial with discrete energy levels, which is analagous to an electron bound to an atomic nucleus...seminal work, the ideas for implementing quantum computing have diversified, and the DiVincenzo criteria as originally stated are difficult to apply to...many emerging concepts. Here, we rephrase DiVincenzo’s original considerations into three more general criteria; these are stated with the assumption

  2. Computer Spectrometers

    NASA Astrophysics Data System (ADS)

    Dattani, Nikesh S.

    2017-06-01

    Ideally, the cataloguing of spectroscopic linelists would not demand laborious and expensive experiments. Whatever an experiment might achieve, the same information would be attainable by running a calculation on a computer. Kolos and Wolniewicz were the first to demonstrate that calculations on a computer can outperform even the most sophisticated molecular spectroscopic experiments of the time, when their 1964 calculations of the dissociation energies of H_2 and D_{2} were found to be more than 1 cm^{-1} larger than the best experiments by Gerhard Herzberg, suggesting the experiment violated a strict variational principle. As explained in his Nobel Lecture, it took 5 more years for Herzberg to perform an experiment which caught up to the accuracy of the 1964 calculations. Today, numerical solutions to the Schrödinger equation, supplemented with relativistic and higher-order quantum electrodynamics (QED) corrections can provide ro-vibrational spectra for molecules that we strongly believe to be correct, even in the absence of experimental data. Why do we believe these calculated spectra are correct if we do not have experiments against which to test them? All evidence seen so far suggests that corrections due to gravity or other forces are not needed for a computer simulated QED spectrum of ro-vibrational energy transitions to be correct at the precision of typical spectrometers. Therefore a computer-generated spectrum can be considered to be as good as one coming from a more conventional spectrometer, and this has been shown to be true not just for the H_2 energies back in 1964, but now also for several other molecules. So are we at the stage where we can launch an array of calculations, each with just the atomic number changed in the input file, to reproduce the NIST energy level databases? Not quite. But I will show that for the 6e^- molecule Li_2, we have reproduced the vibrational spacings to within 0.001 cm^{-1} of the experimental spectrum, and I will

  3. Computer vision

    NASA Technical Reports Server (NTRS)

    Gennery, D.; Cunningham, R.; Saund, E.; High, J.; Ruoff, C.

    1981-01-01

    The field of computer vision is surveyed and assessed, key research issues are identified, and possibilities for a future vision system are discussed. The problems of descriptions of two and three dimensional worlds are discussed. The representation of such features as texture, edges, curves, and corners are detailed. Recognition methods are described in which cross correlation coefficients are maximized or numerical values for a set of features are measured. Object tracking is discussed in terms of the robust matching algorithms that must be devised. Stereo vision, camera control and calibration, and the hardware and systems architecture are discussed.

  4. Computer grants

    NASA Astrophysics Data System (ADS)

    The Computer and Information Science and Engineering Directorate of the National Science Foundation will offer educational supplements to CISE grants in Fiscal Year 1990. The purpose of the supplements is to establish closer links between CISE-supported research and undergraduate education and to accelerate transfer into the classroom of research results from work done under existing research grants. Any principal investigator with an active NSF research award from a program in the CISE Directorate can apply for an educational supplement. Proposals should be for creative activities to improve education, not for research.

  5. Computational crystallization

    PubMed Central

    Altan, Irem; Charbonneau, Patrick; Snell, Edward H.

    2016-01-01

    Crystallization is a key step in macromolecular structure determination by crystallography. While a robust theoretical treatment of the process is available, due to the complexity of the system, the experimental process is still largely one of trial and error. In this article, efforts in the field are discussed together with a theoretical underpinning using a solubility phase diagram. Prior knowledge has been used to develop tools that computationally predict the crystallization outcome and define mutational approaches that enhance the likelihood of crystallization. For the most part these tools are based on binary outcomes (crystal or no crystal), and the full information contained in an assembly of crystallization screening experiments is lost. The potential of this additional information is illustrated by examples where new biological knowledge can be obtained and where a target can be sub-categorized to predict which class of reagents provides the crystallization driving force. Computational analysis of crystallization requires complete and correctly formatted data. While massive crystallization screening efforts are under way, the data available from many of these studies are sparse. The potential for this data and the steps needed to realize this potential are discussed. PMID:26792536

  6. Computational crystallization.

    PubMed

    Altan, Irem; Charbonneau, Patrick; Snell, Edward H

    2016-07-15

    Crystallization is a key step in macromolecular structure determination by crystallography. While a robust theoretical treatment of the process is available, due to the complexity of the system, the experimental process is still largely one of trial and error. In this article, efforts in the field are discussed together with a theoretical underpinning using a solubility phase diagram. Prior knowledge has been used to develop tools that computationally predict the crystallization outcome and define mutational approaches that enhance the likelihood of crystallization. For the most part these tools are based on binary outcomes (crystal or no crystal), and the full information contained in an assembly of crystallization screening experiments is lost. The potential of this additional information is illustrated by examples where new biological knowledge can be obtained and where a target can be sub-categorized to predict which class of reagents provides the crystallization driving force. Computational analysis of crystallization requires complete and correctly formatted data. While massive crystallization screening efforts are under way, the data available from many of these studies are sparse. The potential for this data and the steps needed to realize this potential are discussed.

  7. Computer vision

    SciTech Connect

    Not Available

    1982-01-01

    This paper discusses material from areas such as artificial intelligence, psychology, computer graphics, and image processing. The intent is to assemble a selection of this material in a form that will serve both as a senior/graduate-level academic text and as a useful reference to those building vision systems. This book has a strong artificial intelligence flavour, emphasising the belief that both the intrinsic image information and the internal model of the world are important in successful vision systems. The book is organised into four parts, based on descriptions of objects at four different levels of abstraction. These are: generalised images-images and image-like entities; segmented images-images organised into subimages that are likely to correspond to interesting objects; geometric structures-quantitative models of image and world structures; relational structures-complex symbolic descriptions of image and world structures. The book contains author and subject indexes.

  8. Computational micromechanics

    NASA Astrophysics Data System (ADS)

    Ortiz, M.

    1996-09-01

    Selected issues in computational micromechanics are reviewed, with particular emphasis on multiple-scale problems and micromechanical models of material behavior. Examples considered include: the bridging of atomistic and continuum scales, with application to nanoindentation and the brittle-to-ductile transition; the development of dislocation-based constitutive relations for pure metallic crystals and intermetallic compounds, with applications to fracture of single crystals and bicrystals; the simulation of non-planar three-dimensional crack growth at the microscale, with application to mixed mode I III effective behavior and crack trapping and bridging in fiber-reinforced composites; and the direct micromechanical simulation of fragmentation of brittle solids and subsequent flow of the comminuted phase.

  9. Computational introspection

    SciTech Connect

    Batali, J.

    1983-02-01

    Introspection is the process of thinking about one's own thoughts and feelings. In this paper, the author discusses recent attempts to make computational systems that exhibit introspective behavior. Each presents a system capable of manipulating representations of its own program and current context. He argues that introspective ability is crucial for intelligent systems--without it an agent cannot represent certain problems that it must be able to solve. A theory of intelligent action would describe how and why certain actions intelligently achieve an agent's goals. The agent would both embody and represent this theory: it would be implemented as the program for the agent; and the importance of introspection suggests that the agent represent its theory of action to itself.

  10. Specialized computer architectures for computational aerodynamics

    NASA Technical Reports Server (NTRS)

    Stevenson, D. K.

    1978-01-01

    In recent years, computational fluid dynamics has made significant progress in modelling aerodynamic phenomena. Currently, one of the major barriers to future development lies in the compute-intensive nature of the numerical formulations and the relative high cost of performing these computations on commercially available general purpose computers, a cost high with respect to dollar expenditure and/or elapsed time. Today's computing technology will support a program designed to create specialized computing facilities to be dedicated to the important problems of computational aerodynamics. One of the still unresolved questions is the organization of the computing components in such a facility. The characteristics of fluid dynamic problems which will have significant impact on the choice of computer architecture for a specialized facility are reviewed.

  11. Specialized computer architectures for computational aerodynamics

    NASA Technical Reports Server (NTRS)

    Stevenson, D. K.

    1978-01-01

    In recent years, computational fluid dynamics has made significant progress in modelling aerodynamic phenomena. Currently, one of the major barriers to future development lies in the compute-intensive nature of the numerical formulations and the relative high cost of performing these computations on commercially available general purpose computers, a cost high with respect to dollar expenditure and/or elapsed time. Today's computing technology will support a program designed to create specialized computing facilities to be dedicated to the important problems of computational aerodynamics. One of the still unresolved questions is the organization of the computing components in such a facility. The characteristics of fluid dynamic problems which will have significant impact on the choice of computer architecture for a specialized facility are reviewed.

  12. Program Facilitates Distributed Computing

    NASA Technical Reports Server (NTRS)

    Hui, Joseph

    1993-01-01

    KNET computer program facilitates distribution of computing between UNIX-compatible local host computer and remote host computer, which may or may not be UNIX-compatible. Capable of automatic remote log-in. User communicates interactively with remote host computer. Data output from remote host computer directed to local screen, to local file, and/or to local process. Conversely, data input from keyboard, local file, or local process directed to remote host computer. Written in ANSI standard C language.

  13. Computing the Profession.

    ERIC Educational Resources Information Center

    Denning, Peter J.

    1998-01-01

    Discussion of computing as a science and profession examines the chasm between computer scientists and users, barriers to the use and growth of computing, experimental computer science, computational science, software engineering, professional identity, professional practices, applications of technology, innovation, field boundaries, and…

  14. The assumptions of computing

    SciTech Connect

    Huggins, J.K.

    1994-12-31

    The use of computers, like any technological activity, is not content-neutral. Users of computers constantly interact with assumptions regarding worthwhile activity which are embedded in any computing system. Directly questioning these assumptions in the context of computing allows us to develop an understanding of responsible computing.

  15. Tying into Computers.

    ERIC Educational Resources Information Center

    Canipe, Stephen L.

    Topics in this paper include: sources of computer programs, public domain software, copyright violations, purposes of computers in classrooms (drill/practice and interactive learning), computer assisted instruction, flow charts, and computer clubs (such as App-le-kations in Charlotte, North Carolina). A complete listing of two computer programs…

  16. Democratizing Computer Science

    ERIC Educational Resources Information Center

    Margolis, Jane; Goode, Joanna; Ryoo, Jean J.

    2015-01-01

    Computer science programs are too often identified with a narrow stratum of the student population, often white or Asian boys who have access to computers at home. But because computers play such a huge role in our world today, all students can benefit from the study of computer science and the opportunity to build skills related to computing. The…

  17. Tying into Computers.

    ERIC Educational Resources Information Center

    Canipe, Stephen L.

    Topics in this paper include: sources of computer programs, public domain software, copyright violations, purposes of computers in classrooms (drill/practice and interactive learning), computer assisted instruction, flow charts, and computer clubs (such as App-le-kations in Charlotte, North Carolina). A complete listing of two computer programs…

  18. Democratizing Computer Science

    ERIC Educational Resources Information Center

    Margolis, Jane; Goode, Joanna; Ryoo, Jean J.

    2015-01-01

    Computer science programs are too often identified with a narrow stratum of the student population, often white or Asian boys who have access to computers at home. But because computers play such a huge role in our world today, all students can benefit from the study of computer science and the opportunity to build skills related to computing. The…

  19. Overview of Computer Hardware.

    ERIC Educational Resources Information Center

    Tidball, Charles S.

    1980-01-01

    Reviews development in electronics technology of digital computers, considering the binary number representation, miniaturization of electronic components, cost and space requirements of computers, ways in which computers are used, and types of computers appropriate for teaching computer literacy and demonstrating physiological simulation. (CS)

  20. Computers for Everybody.

    ERIC Educational Resources Information Center

    Willis, Jerry; Miller, Merl

    This book explains how computers can be used in the home, office or school, and provides a consumer's guide to computer equipment for the novice user. The first sections of the book offer a brief sketch of computer history, a listing of entertaining and easily available computer programs, a step-by-step guide to buying a computer, and advice on…

  1. The Old Computers' Home.

    ERIC Educational Resources Information Center

    Angier, Natalie

    1983-01-01

    The Computer Museum in Marlborough, Massachusetts houses old and not-so-old calculators, famous old computers and parts of computers, photographs and assorted memorabilia, computer-generated murals, and even a computer made of Tinkertoys that plays tick-tack-toe. The development of the museum and selected exhibits is described. (Author/JN)

  2. CAA: Computer Assisted Athletics.

    ERIC Educational Resources Information Center

    Hall, John H.

    Computers have been used in a variety of applications for athletics since the late 1950's. These have ranged from computer-controlled electric scoreboards to computer-designed pole vaulting poles. Described in this paper are a computer-based athletic injury reporting system and a computer-assisted football scouting system. The injury reporting…

  3. Computational thinking and thinking about computing

    PubMed Central

    Wing, Jeannette M.

    2008-01-01

    Computational thinking will influence everyone in every field of endeavour. This vision poses a new educational challenge for our society, especially for our children. In thinking about computing, we need to be attuned to the three drivers of our field: science, technology and society. Accelerating technological advances and monumental societal demands force us to revisit the most basic scientific questions of computing. PMID:18672462

  4. The New Administrative Computing.

    ERIC Educational Resources Information Center

    Green, Kenneth C.

    1988-01-01

    The past decade has seen dramatic changes in administrative computing, including more systems, more applications, a new group of computer users, and new opportunities for computer use in campus administration. (Author/MSE)

  5. Environmentalists and the Computer.

    ERIC Educational Resources Information Center

    Baron, Robert C.

    1982-01-01

    Review characteristics, applications, and limitations of computers, including word processing, data/record keeping, scientific and industrial, and educational applications. Discusses misuse of computers and role of computers in environmental management. (JN)

  6. Computers: Instruments of Change.

    ERIC Educational Resources Information Center

    Barkume, Megan

    1993-01-01

    Discusses the impact of computers in the home, the school, and the workplace. Looks at changes in computer use by occupations and by industry. Provides information on new job titles in computer occupations. (JOW)

  7. On Teaching Computer Programming.

    ERIC Educational Resources Information Center

    Er, M. C.

    1984-01-01

    Points out difficulties associated with teaching introductory computer programing courses, discussing the importance of computer programing and explains activities associated with its use. Possible solutions to help teachers resolve problem areas in computer instruction are also offered. (ML)

  8. ADVANCED COMPUTATIONAL METHODS IN DOSE MODELING: APPLICATION OF COMPUTATIONAL BIOPHYSICAL TRANSPORT, COMPUTATIONAL CHEMISTRY, AND COMPUTATIONAL BIOLOGY

    EPA Science Inventory

    Computational toxicology (CompTox) leverages the significant gains in computing power and computational techniques (e.g., numerical approaches, structure-activity relationships, bioinformatics) realized over the last few years, thereby reducing costs and increasing efficiency i...

  9. Computer Literacy Revisited.

    ERIC Educational Resources Information Center

    Klassen, Daniel

    1983-01-01

    This examination of important trends in the field of computing and education identifies and discusses four key computer literacy goals for educators as well as obstacles facing educators concerned with computer literacy. Nine references are listed. (Author/MBR)

  10. Avoiding Computer Viruses.

    ERIC Educational Resources Information Center

    Rowe, Joyce; And Others

    1989-01-01

    The threat of computer sabotage is a real concern to business teachers and others responsible for academic computer facilities. Teachers can minimize the possibility. Eight suggestions for avoiding computer viruses are given. (JOW)

  11. Computer Viruses: An Overview.

    ERIC Educational Resources Information Center

    Marmion, Dan

    1990-01-01

    Discusses the early history and current proliferation of computer viruses that occur on Macintosh and DOS personal computers, mentions virus detection programs, and offers suggestions for how libraries can protect themselves and their users from damage by computer viruses. (LRW)

  12. PR Educators Stress Computers.

    ERIC Educational Resources Information Center

    Fleming, Charles A.

    1988-01-01

    Surveys the varied roles computers play in public relations education. Asserts that, because computers are used extensively in the public relations field, students should become acquainted with the varied capabilities of computers and their role in public relations practice. (MM)

  13. Computers and the landscape

    Treesearch

    Gary H. Elsner

    1979-01-01

    Computers can analyze and help to plan the visual aspects of large wildland landscapes. This paper categorizes and explains current computer methods available. It also contains a futuristic dialogue between a landscape architect and a computer.

  14. ADVANCED COMPUTATIONAL METHODS IN DOSE MODELING: APPLICATION OF COMPUTATIONAL BIOPHYSICAL TRANSPORT, COMPUTATIONAL CHEMISTRY, AND COMPUTATIONAL BIOLOGY

    EPA Science Inventory

    Computational toxicology (CompTox) leverages the significant gains in computing power and computational techniques (e.g., numerical approaches, structure-activity relationships, bioinformatics) realized over the last few years, thereby reducing costs and increasing efficiency i...

  15. Computer Literacy Revisited.

    ERIC Educational Resources Information Center

    Klassen, Daniel

    1983-01-01

    This examination of important trends in the field of computing and education identifies and discusses four key computer literacy goals for educators as well as obstacles facing educators concerned with computer literacy. Nine references are listed. (Author/MBR)

  16. Computer Viruses: An Overview.

    ERIC Educational Resources Information Center

    Marmion, Dan

    1990-01-01

    Discusses the early history and current proliferation of computer viruses that occur on Macintosh and DOS personal computers, mentions virus detection programs, and offers suggestions for how libraries can protect themselves and their users from damage by computer viruses. (LRW)

  17. Computers and Employment.

    ERIC Educational Resources Information Center

    McConnell, Sheila; And Others

    1996-01-01

    Includes "Role of Computers in Reshaping the Work Force" (McConnell); "Semiconductors" (Moris); "Computer Manufacturing" (Warnke); "Commercial Banking Transformed by Computer Technology" (Morisi); "Software, Engineering Industries: Threatened by Technological Change?" (Goodman); "Job Creation…

  18. Computers and Employment.

    ERIC Educational Resources Information Center

    McConnell, Sheila; And Others

    1996-01-01

    Includes "Role of Computers in Reshaping the Work Force" (McConnell); "Semiconductors" (Moris); "Computer Manufacturing" (Warnke); "Commercial Banking Transformed by Computer Technology" (Morisi); "Software, Engineering Industries: Threatened by Technological Change?" (Goodman); "Job Creation…

  19. Computing technology in the 1980's. [computers

    NASA Technical Reports Server (NTRS)

    Stone, H. S.

    1978-01-01

    Advances in computing technology have been led by consistently improving semiconductor technology. The semiconductor industry has turned out ever faster, smaller, and less expensive devices since transistorized computers were first introduced 20 years ago. For the next decade, there appear to be new advances possible, with the rate of introduction of improved devices at least equal to the historic trends. The implication of these projections is that computers will enter new markets and will truly be pervasive in business, home, and factory as their cost diminishes and their computational power expands to new levels. The computer industry as we know it today will be greatly altered in the next decade, primarily because the raw computer system will give way to computer-based turn-key information and control systems.

  20. Computer hardware fault administration

    DOEpatents

    Archer, Charles J.; Megerian, Mark G.; Ratterman, Joseph D.; Smith, Brian E.

    2010-09-14

    Computer hardware fault administration carried out in a parallel computer, where the parallel computer includes a plurality of compute nodes. The compute nodes are coupled for data communications by at least two independent data communications networks, where each data communications network includes data communications links connected to the compute nodes. Typical embodiments carry out hardware fault administration by identifying a location of a defective link in the first data communications network of the parallel computer and routing communications data around the defective link through the second data communications network of the parallel computer.

  1. Computer Lab Configuration.

    ERIC Educational Resources Information Center

    Wodarz, Nan

    2003-01-01

    Describes the layout and elements of an effective school computer lab. Includes configuration, storage spaces, cabling and electrical requirements, lighting, furniture, and computer hardware and peripherals. (PKP)

  2. Quantum computational supremacy

    NASA Astrophysics Data System (ADS)

    Harrow, Aram W.; Montanaro, Ashley

    2017-09-01

    The field of quantum algorithms aims to find ways to speed up the solution of computational problems by using a quantum computer. A key milestone in this field will be when a universal quantum computer performs a computational task that is beyond the capability of any classical computer, an event known as quantum supremacy. This would be easier to achieve experimentally than full-scale quantum computing, but involves new theoretical challenges. Here we present the leading proposals to achieve quantum supremacy, and discuss how we can reliably compare the power of a classical computer to the power of a quantum computer.

  3. Computer Lab Configuration.

    ERIC Educational Resources Information Center

    Wodarz, Nan

    2003-01-01

    Describes the layout and elements of an effective school computer lab. Includes configuration, storage spaces, cabling and electrical requirements, lighting, furniture, and computer hardware and peripherals. (PKP)

  4. Undergraduate computational physics projects on quantum computing

    NASA Astrophysics Data System (ADS)

    Candela, D.

    2015-08-01

    Computational projects on quantum computing suitable for students in a junior-level quantum mechanics course are described. In these projects students write their own programs to simulate quantum computers. Knowledge is assumed of introductory quantum mechanics through the properties of spin 1/2. Initial, more easily programmed projects treat the basics of quantum computation, quantum gates, and Grover's quantum search algorithm. These are followed by more advanced projects to increase the number of qubits and implement Shor's quantum factoring algorithm. The projects can be run on a typical laptop or desktop computer, using most programming languages. Supplementing resources available elsewhere, the projects are presented here in a self-contained format especially suitable for a short computational module for physics students.

  5. Computer Literacy for Teachers.

    ERIC Educational Resources Information Center

    Sarapin, Marvin I.; Post, Paul E.

    Basic concepts of computer literacy are discussed as they relate to industrial arts/technology education. Computer hardware development is briefly examined, and major software categories are defined, including database management, computer graphics, spreadsheet programs, telecommunications and networking, word processing, and computer assisted and…

  6. Overview 1993: Computational applications

    NASA Technical Reports Server (NTRS)

    Benek, John A.

    1993-01-01

    Computational applications include projects that apply or develop computationally intensive computer programs. Such programs typically require supercomputers to obtain solutions in a timely fashion. This report describes two CSTAR projects involving Computational Fluid Dynamics (CFD) technology. The first, the Parallel Processing Initiative, is a joint development effort and the second, the Chimera Technology Development, is a transfer of government developed technology to American industry.

  7. The Glass Computer

    ERIC Educational Resources Information Center

    Paesler, M. A.

    2009-01-01

    Digital computers use different kinds of memory, each of which is either volatile or nonvolatile. On most computers only the hard drive memory is nonvolatile, i.e., it retains all information stored on it when the power is off. When a computer is turned on, an operating system stored on the hard drive is loaded into the computer's memory cache and…

  8. Computers and Conceptual Change.

    ERIC Educational Resources Information Center

    Olson, John

    A systematic study was conducted with a group of 10- to 12-year-olds using computer assisted instruction in a unit on fire which included a computer simulation of combustion. Three research questions were addressed to learn more about how the computer experience challenged the students' preconceptions: what the students thought the computer knew,…

  9. Computers and Conceptual Change.

    ERIC Educational Resources Information Center

    Olson, John

    A systematic study was conducted with a group of 10- to 12-year-olds using computer assisted instruction in a unit on fire which included a computer simulation of combustion. Three research questions were addressed to learn more about how the computer experience challenged the students' preconceptions: what the students thought the computer knew,…

  10. French Computer Terminology.

    ERIC Educational Resources Information Center

    Gray, Eugene F.

    1985-01-01

    Characteristics, idiosyncrasies, borrowings, and other aspects of the French terminology for computers and computer-related matters are discussed and placed in the context of French computer use. A glossary provides French equivalent terms or translations of English computer terminology. (MSE)

  11. The Story of Computers.

    ERIC Educational Resources Information Center

    Meadow, Charles T.

    The aim of this book is to interest young people from the ages of ten to fourteen in computers, particularly to show them that computers are exciting machines, controlled by people, and to dispel myths that computers can do magic. This is not a detailed exposition of computers, nor is it a textbook. It is an attempt to impart flavor and general…

  12. EPICS personal computer evaluation

    SciTech Connect

    Kramper, B.; MacKinnon, B.

    1984-02-01

    This document is an evaluation of five personal computers to be used as intelligent terminals on the beamline control system (EPICS). It is not intended to be a general comment on the computers themselves. Rather, it is an evaluation of these computers for a specific need. Nevertheless, this document should be useful for those considering the acquisition of a personal computer.

  13. Computer Viruses. Technology Update.

    ERIC Educational Resources Information Center

    Ponder, Tim, Comp.; Ropog, Marty, Comp.; Keating, Joseph, Comp.

    This document provides general information on computer viruses, how to help protect a computer network from them, measures to take if a computer becomes infected. Highlights include the origins of computer viruses; virus contraction; a description of some common virus types (File Virus, Boot Sector/Partition Table Viruses, Trojan Horses, and…

  14. My Computer Romance

    ERIC Educational Resources Information Center

    Campbell, Gardner

    2007-01-01

    In this article, the author relates the big role of computers in his life as a writer. The author narrates that he has been using a computer for nearly twenty years now. He relates that computers has set his writing free. When he started writing, he was just using an electric typewriter. He also relates that his romance with computers is also a…

  15. Computer Innovations in Education.

    ERIC Educational Resources Information Center

    Molnar, Andrew R.

    Computers in education are put in context by a brief review of current social and technological trends, a short history of the development of computers and the vast expansion of their use, and a brief description of computers and their use. Further chapters describe instructional applications, administrative uses, uses of computers for libraries…

  16. How Computer Graphics Work.

    ERIC Educational Resources Information Center

    Prosise, Jeff

    This document presents the principles behind modern computer graphics without straying into the arcane languages of mathematics and computer science. Illustrations accompany the clear, step-by-step explanations that describe how computers draw pictures. The 22 chapters of the book are organized into 5 sections. "Part 1: Computer Graphics in…

  17. Teach Teachers Computers.

    ERIC Educational Resources Information Center

    Levin, Dan

    1983-01-01

    Suggests eight steps for training teachers to use computers, including establishing a computer committee, structuring and budgeting for inservice courses, cooperating with other schools, and sending some teachers to the computer company's maintenance and repair school. Lists 25 computer skills teachers need and describes California and Minnesota…

  18. My Computer Romance

    ERIC Educational Resources Information Center

    Campbell, Gardner

    2007-01-01

    In this article, the author relates the big role of computers in his life as a writer. The author narrates that he has been using a computer for nearly twenty years now. He relates that computers has set his writing free. When he started writing, he was just using an electric typewriter. He also relates that his romance with computers is also a…

  19. Elementary School Computer Literacy.

    ERIC Educational Resources Information Center

    New York City Board of Education, Brooklyn, NY.

    This curriculum guide presents lessons for computer literacy instruction in the elementary grades. The first section of the guide includes 22 lessons on hardware, covering such topics as how computers work, keyboarding, word processing, and computer peripherals. The 13 lessons in the second section cover social topics related to the computer,…

  20. What is a Computer?

    ERIC Educational Resources Information Center

    Ball, Marion J.

    This colorfully illustrated book is designed to introduce elementary school students to the world of computers. Computers, their component parts and their capabilities are personified using full page sketches and color drawings. The differences between analog and digital computers are given as is a short history of computer use and development.…

  1. The Glass Computer

    ERIC Educational Resources Information Center

    Paesler, M. A.

    2009-01-01

    Digital computers use different kinds of memory, each of which is either volatile or nonvolatile. On most computers only the hard drive memory is nonvolatile, i.e., it retains all information stored on it when the power is off. When a computer is turned on, an operating system stored on the hard drive is loaded into the computer's memory cache and…

  2. Parallel computing works

    SciTech Connect

    Not Available

    1991-10-23

    An account of the Caltech Concurrent Computation Program (C{sup 3}P), a five year project that focused on answering the question: Can parallel computers be used to do large-scale scientific computations '' As the title indicates, the question is answered in the affirmative, by implementing numerous scientific applications on real parallel computers and doing computations that produced new scientific results. In the process of doing so, C{sup 3}P helped design and build several new computers, designed and implemented basic system software, developed algorithms for frequently used mathematical computations on massively parallel machines, devised performance models and measured the performance of many computers, and created a high performance computing facility based exclusively on parallel computers. While the initial focus of C{sup 3}P was the hypercube architecture developed by C. Seitz, many of the methods developed and lessons learned have been applied successfully on other massively parallel architectures.

  3. Distributed computing in bioinformatics.

    PubMed

    Jain, Eric

    2002-01-01

    This paper provides an overview of methods and current applications of distributed computing in bioinformatics. Distributed computing is a strategy of dividing a large workload among multiple computers to reduce processing time, or to make use of resources such as programs and databases that are not available on all computers. Participating computers may be connected either through a local high-speed network or through the Internet.

  4. (Computer vision and robotics)

    SciTech Connect

    Jones, J.P.

    1989-02-13

    The traveler attended the Fourth Aalborg International Symposium on Computer Vision at Aalborg University, Aalborg, Denmark. The traveler presented three invited lectures entitled, Concurrent Computer Vision on a Hypercube Multicomputer'', The Butterfly Accumulator and its Application in Concurrent Computer Vision on Hypercube Multicomputers'', and Concurrency in Mobile Robotics at ORNL'', and a ten-minute editorial entitled, It Concurrency an Issue in Computer Vision.'' The traveler obtained information on current R D efforts elsewhere in concurrent computer vision.

  5. Future Computer Requirements for Computational Aerodynamics

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Recent advances in computational aerodynamics are discussed as well as motivations for and potential benefits of a National Aerodynamic Simulation Facility having the capability to solve fluid dynamic equations at speeds two to three orders of magnitude faster than presently possible with general computers. Two contracted efforts to define processor architectures for such a facility are summarized.

  6. Computers and Computation. Readings from Scientific American.

    ERIC Educational Resources Information Center

    Fenichel, Robert R.; Weizenbaum, Joseph

    A collection of articles from "Scientific American" magazine has been put together at this time because the current period in computer science is one of consolidation rather than innovation. A few years ago, computer science was moving so swiftly that even the professional journals were more archival than informative; but today it is…

  7. Computational Biology, Advanced Scientific Computing, and Emerging Computational Architectures

    SciTech Connect

    2007-06-27

    This CRADA was established at the start of FY02 with $200 K from IBM and matching funds from DOE to support post-doctoral fellows in collaborative research between International Business Machines and Oak Ridge National Laboratory to explore effective use of emerging petascale computational architectures for the solution of computational biology problems. 'No cost' extensions of the CRADA were negotiated with IBM for FY03 and FY04.

  8. Understanding student computational thinking with computational modeling

    NASA Astrophysics Data System (ADS)

    Aiken, John M.; Caballero, Marcos D.; Douglas, Scott S.; Burk, John B.; Scanlon, Erin M.; Thoms, Brian D.; Schatz, Michael F.

    2013-01-01

    Recently, the National Research Council's framework for next generation science standards highlighted "computational thinking" as one of its "fundamental practices". 9th Grade students taking a physics course that employed the Arizona State University's Modeling Instruction curriculum were taught to construct computational models of physical systems. Student computational thinking was assessed using a proctored programming assignment, written essay, and a series of think-aloud interviews, where the students produced and discussed a computational model of a baseball in motion via a high-level programming environment (VPython). Roughly a third of the students in the study were successful in completing the programming assignment. Student success on this assessment was tied to how students synthesized their knowledge of physics and computation. On the essay and interview assessments, students displayed unique views of the relationship between force and motion; those who spoke of this relationship in causal (rather than observational) terms tended to have more success in the programming exercise.

  9. Heterogeneous Distributed Computing for Computational Aerosciences

    NASA Technical Reports Server (NTRS)

    Sunderam, Vaidy S.

    1998-01-01

    The research supported under this award focuses on heterogeneous distributed computing for high-performance applications, with particular emphasis on computational aerosciences. The overall goal of this project was to and investigate issues in, and develop solutions to, efficient execution of computational aeroscience codes in heterogeneous concurrent computing environments. In particular, we worked in the context of the PVM[1] system and, subsequent to detailed conversion efforts and performance benchmarking, devising novel techniques to increase the efficacy of heterogeneous networked environments for computational aerosciences. Our work has been based upon the NAS Parallel Benchmark suite, but has also recently expanded in scope to include the NAS I/O benchmarks as specified in the NHT-1 document. In this report we summarize our research accomplishments under the auspices of the grant.

  10. Heterotic computing: exploiting hybrid computational devices.

    PubMed

    Kendon, Viv; Sebald, Angelika; Stepney, Susan

    2015-07-28

    Current computational theory deals almost exclusively with single models: classical, neural, analogue, quantum, etc. In practice, researchers use ad hoc combinations, realizing only recently that they can be fundamentally more powerful than the individual parts. A Theo Murphy meeting brought together theorists and practitioners of various types of computing, to engage in combining the individual strengths to produce powerful new heterotic devices. 'Heterotic computing' is defined as a combination of two or more computational systems such that they provide an advantage over either substrate used separately. This post-meeting collection of articles provides a wide-ranging survey of the state of the art in diverse computational paradigms, together with reflections on their future combination into powerful and practical applications.

  11. Cloud Computing for radiologists

    PubMed Central

    Kharat, Amit T; Safvi, Amjad; Thind, SS; Singh, Amarjit

    2012-01-01

    Cloud computing is a concept wherein a computer grid is created using the Internet with the sole purpose of utilizing shared resources such as computer software, hardware, on a pay-per-use model. Using Cloud computing, radiology users can efficiently manage multimodality imaging units by using the latest software and hardware without paying huge upfront costs. Cloud computing systems usually work on public, private, hybrid, or community models. Using the various components of a Cloud, such as applications, client, infrastructure, storage, services, and processing power, Cloud computing can help imaging units rapidly scale and descale operations and avoid huge spending on maintenance of costly applications and storage. Cloud computing allows flexibility in imaging. It sets free radiology from the confines of a hospital and creates a virtual mobile office. The downsides to Cloud computing involve security and privacy issues which need to be addressed to ensure the success of Cloud computing in the future. PMID:23599560

  12. Cloud Computing for radiologists.

    PubMed

    Kharat, Amit T; Safvi, Amjad; Thind, Ss; Singh, Amarjit

    2012-07-01

    Cloud computing is a concept wherein a computer grid is created using the Internet with the sole purpose of utilizing shared resources such as computer software, hardware, on a pay-per-use model. Using Cloud computing, radiology users can efficiently manage multimodality imaging units by using the latest software and hardware without paying huge upfront costs. Cloud computing systems usually work on public, private, hybrid, or community models. Using the various components of a Cloud, such as applications, client, infrastructure, storage, services, and processing power, Cloud computing can help imaging units rapidly scale and descale operations and avoid huge spending on maintenance of costly applications and storage. Cloud computing allows flexibility in imaging. It sets free radiology from the confines of a hospital and creates a virtual mobile office. The downsides to Cloud computing involve security and privacy issues which need to be addressed to ensure the success of Cloud computing in the future.

  13. Collinear reaction surface for He and ArH+

    NASA Astrophysics Data System (ADS)

    Pettitt, B. M.; Jacobson, Kent; Matcha, R. L.

    1980-02-01

    An LCAO-SCF ccalculation is presented for the potential energy surface for He and ArH. The calculation was done using contracted gaussian basis sets on a Honeywell 6660 computer using the MOLE quantum chemistry program. (AIP)

  14. Computers in manufacturing.

    PubMed

    Hudson, C A

    1982-02-12

    Computers are now widely used in product design and in automation of selected areas in factories. Within the next decade, the use of computers in the entire spectrum of manufacturing applications, from computer-aided design to computer-aided manufacturing and robotics, is expected to be practical and economically justified. Such widespread use of computers on the factory floor awaits further advances in computer capabilities, the emergence of systems that are adaptive to the workplace, and the development of interfaces to link islands of automation and to allow effective user communications.

  15. Computational aerodynamics and design

    NASA Technical Reports Server (NTRS)

    Ballhaus, W. F., Jr.

    1982-01-01

    The role of computational aerodynamics in design is reviewed with attention given to the design process; the proper role of computations; the importance of calibration, interpretation, and verification; the usefulness of a given computational capability; and the marketing of new codes. Examples of computational aerodynamics in design are given with particular emphasis on the Highly Maneuverable Aircraft Technology. Finally, future prospects are noted, with consideration given to the role of advanced computers, advances in numerical solution techniques, turbulence models, complex geometries, and computational design procedures. Previously announced in STAR as N82-33348

  16. Light multinary computing

    NASA Astrophysics Data System (ADS)

    Arago, Jaime

    2012-11-01

    Next-generation optical communication and optical computing imply an evolution from binary to multinary computing. Light multinary computing encodes data using pulses of light components in higher orders than binary and processes it using truth tables larger than Boolean ones. This results in lesser encoded data that can be processed at faster speeds. We use a general-purpose optical transistor as the building block to develop the main computing units for counting, distributing, storing, and logically operating the arithmetic addition of two bytes of base-10 data. Currently available optical switching technologies can be used to physically implement light multinary computing to achieve ultra-high speed communication and computing.

  17. Computational aerodynamics and design

    NASA Technical Reports Server (NTRS)

    Ballhaus, W. F., Jr.

    1982-01-01

    The role of computational aerodynamics in design is reviewed with attention given to the design process; the proper role of computations; the importance of calibration, interpretation, and verification; the usefulness of a given computational capability; and the marketing of new codes. Examples of computational aerodynamics in design are given with particular emphasis on the Highly Maneuverable Aircraft Technology. Finally, future prospects are noted, with consideration given to the role of advanced computers, advances in numerical solution techniques, turbulence models, complex geometries, and computational design procedures. Previously announced in STAR as N82-33348

  18. Scientific Grid computing.

    PubMed

    Coveney, Peter V

    2005-08-15

    We introduce a definition of Grid computing which is adhered to throughout this Theme Issue. We compare the evolution of the World Wide Web with current aspirations for Grid computing and indicate areas that need further research and development before a generally usable Grid infrastructure becomes available. We discuss work that has been done in order to make scientific Grid computing a viable proposition, including the building of Grids, middleware developments, computational steering and visualization. We review science that has been enabled by contemporary computational Grids, and associated progress made through the widening availability of high performance computing.

  19. Polymorphous computing fabric

    DOEpatents

    Wolinski, Christophe Czeslaw [Los Alamos, NM; Gokhale, Maya B [Los Alamos, NM; McCabe, Kevin Peter [Los Alamos, NM

    2011-01-18

    Fabric-based computing systems and methods are disclosed. A fabric-based computing system can include a polymorphous computing fabric that can be customized on a per application basis and a host processor in communication with said polymorphous computing fabric. The polymorphous computing fabric includes a cellular architecture that can be highly parameterized to enable a customized synthesis of fabric instances for a variety of enhanced application performances thereof. A global memory concept can also be included that provides the host processor random access to all variables and instructions associated with the polymorphous computing fabric.

  20. Computers in Manufacturing.

    ERIC Educational Resources Information Center

    Hudson, C. A.

    1982-01-01

    Advances in factory computerization (computer-aided design and computer-aided manufacturing) are reviewed, including discussions of robotics, human factors engineering, and the sociological impact of automation. (JN)

  1. Computer Intrusions and Attacks.

    ERIC Educational Resources Information Center

    Falk, Howard

    1999-01-01

    Examines some frequently encountered unsolicited computer intrusions, including computer viruses, worms, Java applications, trojan horses or vandals, e-mail spamming, hoaxes, and cookies. Also discusses virus-protection software, both for networks and for individual users. (LRW)

  2. Computer Crime and Insurance.

    ERIC Educational Resources Information Center

    Beaudoin, Ralph H.

    1985-01-01

    The susceptibility of colleges and universities to computer crime is great. While insurance coverage is available to cover the risks, an aggressive loss-prevention program is the wisest approach to limiting the exposures presented by computer technology. (MLW)

  3. Computational Toxicology (S)

    EPA Science Inventory

    The emerging field of computational toxicology applies mathematical and computer models and molecular biological and chemical approaches to explore both qualitative and quantitative relationships between sources of environmental pollutant exposure and adverse health outcomes. Th...

  4. Cognitive Computing for Security.

    SciTech Connect

    Debenedictis, Erik; Rothganger, Fredrick; Aimone, James Bradley; Marinella, Matthew; Evans, Brian Robert; Warrender, Christina E.; Mickel, Patrick

    2015-12-01

    Final report for Cognitive Computing for Security LDRD 165613. It reports on the development of hybrid of general purpose/ne uromorphic computer architecture, with an emphasis on potential implementation with memristors.

  5. Novel Applications of Computers

    ERIC Educational Resources Information Center

    Levi, Barbara G.

    1970-01-01

    Presents some novel applications of the computer to physics research. They include (1) a computer program for calculating Compton scattering, (2) speech simulation, (3) data analysis in spectrometry, and (4) measurement of complex alpha-particle spectrum. Bibliography. (LC)

  6. Computational Toxicology (S)

    EPA Science Inventory

    The emerging field of computational toxicology applies mathematical and computer models and molecular biological and chemical approaches to explore both qualitative and quantitative relationships between sources of environmental pollutant exposure and adverse health outcomes. Th...

  7. Moving Beyond Computer Literacy.

    ERIC Educational Resources Information Center

    Rhodes, Lewis A.

    1985-01-01

    This article reviews Sherry Turkle's book, "The Second Self: Computers and the Human Spirit," which explores the subjective impact of the computer on children, adults, and our consciousness and culture in general. Two references are provided. (DCS)

  8. Computer Vision Syndrome.

    PubMed

    Randolph, Susan A

    2017-07-01

    With the increased use of electronic devices with visual displays, computer vision syndrome is becoming a major public health issue. Improving the visual status of workers using computers results in greater productivity in the workplace and improved visual comfort.

  9. Computers in engineering, 1991

    SciTech Connect

    Gupta, G.; Shoup, T.E.

    1991-01-01

    This book is covered under the following topics: Robotics, Computers in Fluid Mechanics/Thermal Systems, CAD/CAM/CAE, Finite Element techniques, Computers in Education, Engineering Database Management, and Artificial Intelligence and Expert Systems.

  10. Computer Intrusions and Attacks.

    ERIC Educational Resources Information Center

    Falk, Howard

    1999-01-01

    Examines some frequently encountered unsolicited computer intrusions, including computer viruses, worms, Java applications, trojan horses or vandals, e-mail spamming, hoaxes, and cookies. Also discusses virus-protection software, both for networks and for individual users. (LRW)

  11. Dedicated to computation

    NASA Astrophysics Data System (ADS)

    Banks, Michael

    2017-03-01

    Princeton University astrophysicist David Spergel, founding director of the Center for Computational Astrophsyics at the Flatiron Institute, talks to Michael Banks about plans to make New York a major centre for computational science

  12. Human Computers 1947

    NASA Technical Reports Server (NTRS)

    1947-01-01

    Langley's human computers at work in 1947. The female presence at Langley, who performed mathematical computations for male staff. Photograph published in Winds of Change, 75th Anniversary NASA publication (page 48), by James Schultz.

  13. The Merit Computer Network

    ERIC Educational Resources Information Center

    Aupperle, Eric M.; Davis, Donna L.

    1978-01-01

    The successful Merit Computer Network is examined in terms of both technology and operational management. The network is fully operational and has a significant and rapidly increasing usage, with three major institutions currently sharing computer resources. (Author/CMV)

  14. Computer Software Roundup.

    ERIC Educational Resources Information Center

    Bitter, Gary; And Others

    1983-01-01

    Twenty-five outstanding new computer software programs for drill and practice, simulation, and tutoring are reviewed. Programs deal with classroom management and with the teaching of language arts, computer literacy, social studies, science and logic, and mathematics. (PP)

  15. Computed Tomography (CT) -- Head

    MedlinePlus

    ... ray beam follows a spiral path. A special computer program processes this large volume of data to create ... When the image slices are reassembled by computer software, the result is a very detailed multidimensional view ...

  16. Computed Tomography (CT) - Spine

    MedlinePlus

    ... ray beam follows a spiral path. A special computer program processes this large volume of data to create ... When the image slices are reassembled by computer software, the result is a very detailed multidimensional view ...

  17. Computers in Education.

    ERIC Educational Resources Information Center

    Rao, K. Srinivasa

    1991-01-01

    The important role of the digital computer in education is outlined. The existing Indian situation and needs and the scope of the Computer Literacy And Studies in Schools (CLASS) program are briefly discussed. (Author/KR)

  18. ICASE Computer Science Program

    NASA Technical Reports Server (NTRS)

    1985-01-01

    The Institute for Computer Applications in Science and Engineering computer science program is discussed in outline form. Information is given on such topics as problem decomposition, algorithm development, programming languages, and parallel architectures.

  19. My Computer Is Learning.

    ERIC Educational Resources Information Center

    Good, Ron

    1986-01-01

    Describes instructional uses of computer programs found in David Heiserman's book "Projects in Machine Intelligence for Your Home Computer." The programs feature "creatures" of various colors that move around within a rectangular white border. (JN)

  20. Jacobi Set Computation

    SciTech Connect

    Bhatia, Harsh

    2016-07-28

    Jacobi Set Computation is a software to compute the Jacobi set of 2 piecewise linear scalar functions defined on a triangular mesh. This functionality is useful for analyzing multiple scalar fields simultaneously.

  1. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect

    DAVENPORT,J.

    2004-11-01

    The Brookhaven Computational Science Center brings together researchers in biology, chemistry, physics, and medicine with applied mathematicians and computer scientists to exploit the remarkable opportunities for scientific discovery which have been enabled by modern computers. These opportunities are especially great in computational biology and nanoscience, but extend throughout science and technology and include for example, nuclear and high energy physics, astrophysics, materials and chemical science, sustainable energy, environment, and homeland security.

  2. The Computing World

    DTIC Science & Technology

    1992-04-01

    to modern computers. In the 1840s Augusta Ada, the Countess of Lovelace, translated and wrote several scientific papers regarding Charles P...Babbage’s ideas on an analytical engine problem solving machine. 3 Babbage , "the father of computers," developed ways to store results via memory devices. Ada...simple arithmetic calculating machines to small complex and powerful integrated circuit computers. Jacquard, Babbage and Lovelace set the computer

  3. Space Spurred Computer Graphics

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Dicomed Corporation was asked by NASA in the early 1970s to develop processing capabilities for recording images sent from Mars by Viking spacecraft. The company produced a film recorder which increased the intensity levels and the capability for color recording. This development led to a strong technology base resulting in sophisticated computer graphics equipment. Dicomed systems are used to record CAD (computer aided design) and CAM (computer aided manufacturing) equipment, to update maps and produce computer generated animation.

  4. Chapter on Distributed Computing

    DTIC Science & Technology

    1989-02-01

    MASSACHUSETTS LABORATORY FOR INSTITUTE OF COMPUTER SCIENCE TECHNOLOGY ("D / o O MIT/LCS/TM-384 CHAPTER ON DISTRIBUTED COMPUTING Leslie Lamport Nancy...22217 ELEMENT NO. NO. NO. ACCESSION NO. 11. TITLE (Miude Secuwity Ciaifiation) Chapter on Distributed Computing 12. PERSONAL AUTHOR(S) Lamport... distributed computing , distributed systems models, dis- tributed algorithms, message-passing, shared variables, 19. UBSTRACT (Continue on reverse if

  5. Quantum computing and probability.

    PubMed

    Ferry, David K

    2009-11-25

    Over the past two decades, quantum computing has become a popular and promising approach to trying to solve computationally difficult problems. Missing in many descriptions of quantum computing is just how probability enters into the process. Here, we discuss some simple examples of how uncertainty and probability enter, and how this and the ideas of quantum computing challenge our interpretations of quantum mechanics. It is found that this uncertainty can lead to intrinsic decoherence, and this raises challenges for error correction.

  6. Physics and Computation

    DTIC Science & Technology

    1988-03-01

    com- puter for which the time development is generated by the Schr ~ dinger equa- tion must be a reversible computer . Feynman presented the first... computer for which the time development is generated by the Schrodinger equation must be a reversible computer . Feynman presented the first convincing... computation ................ 139 6.3 Time -evolution operator approach ............... 139 6.4 Hamiltonian operator approach ................. 141 6.4.1

  7. Nanoelectronics: Metrology and Computation

    SciTech Connect

    Lundstrom, Mark; Clark, Jason V.; Klimeck, Gerhard; Raman, Arvind

    2007-09-26

    Research in nanoelectronics poses new challenges for metrology, but advances in theory, simulation and computing and networking technology provide new opportunities to couple simulation and metrology. This paper begins with a brief overview of current work in computational nanoelectronics. Three examples of how computation can assist metrology will then be discussed. The paper concludes with a discussion of how cyberinfrastructure can help connect computing and metrology using the nanoHUB (www.nanoHUB.org) as a specific example.

  8. The fifth generation computer

    SciTech Connect

    Moto-Oka, T.; Kitsuregawa, M.

    1985-01-01

    The leader of Japan's Fifth Generation computer project, known as the 'Apollo' project, and a young computer scientist elucidate in this book the process of how the idea came about, international reactions, the basic technology, prospects for realization, and the abilities of the Fifth Generation computer. Topics considered included forecasting, research programs, planning, and technology impacts.

  9. Education for Computers

    ERIC Educational Resources Information Center

    Heslep, Robert D.

    2012-01-01

    The computer engineers who refer to the education of computers do not have a definite idea of education and do not bother to justify the fuzzy ones to which they allude. Hence, they logically cannot specify the features a computer must have in order to be educable. This paper puts forth a non-standard, but not arbitrary, concept of education that…

  10. BNL ATLAS Grid Computing

    ScienceCinema

    Michael Ernst

    2016-07-12

    As the sole Tier-1 computing facility for ATLAS in the United States and the largest ATLAS computing center worldwide Brookhaven provides a large portion of the overall computing resources for U.S. collaborators and serves as the central hub for storing,

  11. Computer Literacy. Focus 11.

    ERIC Educational Resources Information Center

    Benderson, Albert

    One of a series on the responses by the Educational Testing Service (ETS) and others to critical problems in education, this overview addresses a variety of issues related to computer literacy. Topics discussed include the pace of the transition to the computer age, the development of microprocessors, and the computer as fad or revolution.…

  12. Writing, Thinking and Computers.

    ERIC Educational Resources Information Center

    Hartley, James

    1993-01-01

    Reviews the potential of word processors for changing the ways in which students process written text and think about writing. Three levels of computer-aided writing are considered: simple word processors; computer-aided writing programs; and higher-level computer-aided processing; and improvements in writing quality. (41 references) (LRW)

  13. Getting To Know Computers.

    ERIC Educational Resources Information Center

    Lundgren, Mary Beth

    Originally written for adult new readers involved in literacy programs, this book is also helpful to those individuals who want a basic book about computers. It uses the carefully controlled vocabulary with which adult new readers are familiar. Chapter 1 addresses the widespread use of computers. Chapter 2 discusses what a computer is and…

  14. Education for Computers

    ERIC Educational Resources Information Center

    Heslep, Robert D.

    2012-01-01

    The computer engineers who refer to the education of computers do not have a definite idea of education and do not bother to justify the fuzzy ones to which they allude. Hence, they logically cannot specify the features a computer must have in order to be educable. This paper puts forth a non-standard, but not arbitrary, concept of education that…

  15. Computer Aided Manufacturing.

    ERIC Educational Resources Information Center

    Insolia, Gerard

    This document contains course outlines in computer-aided manufacturing developed for a business-industry technology resource center for firms in eastern Pennsylvania by Northampton Community College. The four units of the course cover the following: (1) introduction to computer-assisted design (CAD)/computer-assisted manufacturing (CAM); (2) CAM…

  16. Computational Thinking Patterns

    ERIC Educational Resources Information Center

    Ioannidou, Andri; Bennett, Vicki; Repenning, Alexander; Koh, Kyu Han; Basawapatna, Ashok

    2011-01-01

    The iDREAMS project aims to reinvent Computer Science education in K-12 schools, by using game design and computational science for motivating and educating students through an approach we call Scalable Game Design, starting at the middle school level. In this paper we discuss the use of Computational Thinking Patterns as the basis for our…

  17. Computers in Engineering Teaching.

    ERIC Educational Resources Information Center

    Rushby, N. J.

    This bibliography cites 26 books, papers, and reports dealing with various uses of computers in engineering education; and describes several computer programs available for use in teaching aeronautical, chemical, civil, electrical and electronic, mechanical, and nuclear engineering. Each computer program entry is presented by name, author,…

  18. The Next Computer Revolution.

    ERIC Educational Resources Information Center

    Peled, Abraham

    1987-01-01

    Discusses some of the future trends in the use of the computer in our society, suggesting that computing is now entering a new phase in which it will grow exponentially more powerful, flexible, and sophisticated in the next decade. Describes some of the latest breakthroughs in computer hardware and software technology. (TW)

  19. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell H., Ed.

    1990-01-01

    Four applications of microcomputers in the chemical laboratory are presented. Included are "Mass Spectrometer Interface with an Apple II Computer,""Interfacing the Spectronic 20 to a Computer,""A pH-Monitoring and Control System for Teaching Laboratories," and "A Computer-Aided Optical Melting Point Device." Software, instrumentation, and uses are…

  20. Quantum walk computation

    SciTech Connect

    Kendon, Viv

    2014-12-04

    Quantum versions of random walks have diverse applications that are motivating experimental implementations as well as theoretical studies. Recent results showing quantum walks are “universal for quantum computation” relate to algorithms, to be run on quantum computers. We consider whether an experimental implementation of a quantum walk could provide useful computation before we have a universal quantum computer.

  1. Computers for Intellectual Regeneration.

    ERIC Educational Resources Information Center

    Kendall, Diane; Budin, Howard

    1987-01-01

    This article presents an interview with Robert Taylor, a leading figure in educational computing. Among the topics covered are: (1) current developments in educational computing, (2) the changing role of teachers, (3) the resources computer technology will provide to social studies teachers, and (4) whether the probable future uses of computers…

  2. Children's Computer Drawings.

    ERIC Educational Resources Information Center

    Alexander, David

    Computer drawing programs have several characteristics that make them appropriate for use in early childhood education. Drawing at the computer is an activity that captures and holds children's attention. Children at all developmental levels of graphic ability can draw at the computer, and their products can be stored in a disc or printed for…

  3. BNL ATLAS Grid Computing

    SciTech Connect

    Michael Ernst

    2008-10-02

    As the sole Tier-1 computing facility for ATLAS in the United States and the largest ATLAS computing center worldwide Brookhaven provides a large portion of the overall computing resources for U.S. collaborators and serves as the central hub for storing,

  4. Computer Center: CIBE Systems.

    ERIC Educational Resources Information Center

    Crovello, Theodore J.

    1982-01-01

    Differentiates between computer systems and Computers in Biological Education (CIBE) systems (computer system intended for use in biological education). Describes several CIBE stand alone systems: single-user microcomputer; single-user microcomputer/video-disc; multiuser microcomputers; multiuser maxicomputer; and local and long distance computer…

  5. Optimizing Computer Technology Integration

    ERIC Educational Resources Information Center

    Dillon-Marable, Elizabeth; Valentine, Thomas

    2006-01-01

    The purpose of this study was to better understand what optimal computer technology integration looks like in adult basic skills education (ABSE). One question guided the research: How is computer technology integration best conceptualized and measured? The study used the Delphi method to map the construct of computer technology integration and…

  6. Computer Training at Harwell

    ERIC Educational Resources Information Center

    Hull, John

    1969-01-01

    By using teletypewriters connected to the Harwell multi-access computing system, lecturers can easily demonstrate the operation of the computer in the classroom; this saves time and eliminates errors and staff can carry out exercises using the main computer. (EB)

  7. Reading, Writing, and Computing.

    ERIC Educational Resources Information Center

    Adams, Dennis M.; And Others

    Reading, writing, and computing, which are interrelated and can thrive on each other for literacy and intellectual growth, are in the process of becoming linked in instructional practice. As reading and writing become more demanding, their task is eased with computer use. The computer seems to provide the connection between composing,…

  8. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell H., Ed.

    1990-01-01

    Four applications of microcomputers in the chemical laboratory are presented. Included are "Mass Spectrometer Interface with an Apple II Computer,""Interfacing the Spectronic 20 to a Computer,""A pH-Monitoring and Control System for Teaching Laboratories," and "A Computer-Aided Optical Melting Point Device." Software, instrumentation, and uses are…

  9. Computers in Science Fiction.

    ERIC Educational Resources Information Center

    La Faille, Eugene

    1985-01-01

    This 136-item annotated bibliography listing science fiction suitable for 12-19 age range is divided into five sections, each organized alphabetically by author's name: in-print novels featuring computers, in-print anthologies of computer stories, in-print studies of computer science fiction, out-of-print novels, short stories. Current publication…

  10. Getting To Know Computers.

    ERIC Educational Resources Information Center

    Lundgren, Mary Beth

    Originally written for adult new readers involved in literacy programs, this book is also helpful to those individuals who want a basic book about computers. It uses the carefully controlled vocabulary with which adult new readers are familiar. Chapter 1 addresses the widespread use of computers. Chapter 2 discusses what a computer is and…

  11. Understanding Computer Terms.

    ERIC Educational Resources Information Center

    Lilly, Edward R.

    Designed to assist teachers and administrators approaching the subject of computers for the first time to acquire a feel for computer terminology, this document presents a computer term glossary on three levels. (1) The terms most frequently used, called a "basic vocabulary," are presented first in three paragraphs which explain their meanings:…

  12. Computer applications in bioprocessing.

    PubMed

    Bungay, H R

    2000-01-01

    Biotechnologists have stayed at the forefront for practical applications for computing. As hardware and software for computing have evolved, the latest advances have found eager users in the area of bioprocessing. Accomplishments and their significance can be appreciated by tracing the history and the interplay between the computing tools and the problems that have been solved in bioprocessing.

  13. The Challenge of Computers.

    ERIC Educational Resources Information Center

    Leger, Guy

    Computers may change teachers' lifestyles, teaching styles, and perhaps even their personal values. A brief survey of the history of computers demonstrates the incredible pace at which computer technology is moving ahead. The cost and size of microchips will continue to decline dramatically over the next 20 years, while the capability and variety…

  14. Computers a la Cart.

    ERIC Educational Resources Information Center

    Barba, Robertta H.

    1988-01-01

    Explains uses of computer hardware when it's no longer needed to teach computer literacy. Describes a mini-lab pilot project which consists of several computers mounted on carts used similarly as audiovisual equipment. Lists advantages, disadvantages, and percentages of time used for instruction, interfacing, word processing, graphing, and…

  15. Computer Center: CIBE Systems.

    ERIC Educational Resources Information Center

    Crovello, Theodore J.

    1982-01-01

    Differentiates between computer systems and Computers in Biological Education (CIBE) systems (computer system intended for use in biological education). Describes several CIBE stand alone systems: single-user microcomputer; single-user microcomputer/video-disc; multiuser microcomputers; multiuser maxicomputer; and local and long distance computer…

  16. Personal Computer Communications.

    ERIC Educational Resources Information Center

    Leclerc, Gerry

    The interconnection between personal computers and other personal, mini, or mainframe computer systems is discussed. The following topics relevant to college personnel are addressed: hardware techniques for tying computers together, advantages and disadvantages of available software, the prospects for sophisticated micro/mainframe links with major…

  17. The Challenge of Computers.

    ERIC Educational Resources Information Center

    Leger, Guy

    Computers may change teachers' lifestyles, teaching styles, and perhaps even their personal values. A brief survey of the history of computers demonstrates the incredible pace at which computer technology is moving ahead. The cost and size of microchips will continue to decline dramatically over the next 20 years, while the capability and variety…

  18. Computers + Student Activities Handbook.

    ERIC Educational Resources Information Center

    Masie, Elliott; Stein, Michele

    Designed to provide schools with the tools to start utilizing computers for student activity programs without additional expenditures, this handbook provides beginning computer users with suggestions and ideas for using computers in such activities as drama clubs, yearbooks, newspapers, activity calendars, accounting programs, room utilization,…

  19. Computing environment logbook

    DOEpatents

    Osbourn, Gordon C; Bouchard, Ann M

    2012-09-18

    A computing environment logbook logs events occurring within a computing environment. The events are displayed as a history of past events within the logbook of the computing environment. The logbook provides search functionality to search through the history of past events to find one or more selected past events, and further, enables an undo of the one or more selected past events.

  20. Chippy's Computer Numbers.

    ERIC Educational Resources Information Center

    Girard, Suzanne; Willing, Kathlene R.

    Intended for young children just becoming familiar with computers, this counting book introduces and reinforces new computer vocabulary and concepts. The numbers, from one to twelve, are presented along with words and illustrations from the world of computers, allowing for different activities in which children can count or match and name the…

  1. Quantum Computing and High Performance Computing

    DTIC Science & Technology

    2006-12-01

    any hardware device. 15. SUBJECT TERMS Quantum Computing, FPGA, Quantum Computer Simulator, Paralelize 16. SECURITY CLASSIFICATION OF: 19a. NAME OF...Case Figure 2 repeatedly references a specific unitary operator—the CNot gate. The definition of the CNot, and any other gate elements that may...standard gate definition , we can reduce the general problem to the specific problem of simulating a gate in standard position, producing the

  2. The science of computing - Parallel computation

    NASA Technical Reports Server (NTRS)

    Denning, P. J.

    1985-01-01

    Although parallel computation architectures have been known for computers since the 1920s, it was only in the 1970s that microelectronic components technologies advanced to the point where it became feasible to incorporate multiple processors in one machine. Concommitantly, the development of algorithms for parallel processing also lagged due to hardware limitations. The speed of computing with solid-state chips is limited by gate switching delays. The physical limit implies that a 1 Gflop operational speed is the maximum for sequential processors. A computer recently introduced features a 'hypercube' architecture with 128 processors connected in networks at 5, 6 or 7 points per grid, depending on the design choice. Its computing speed rivals that of supercomputers, but at a fraction of the cost. The added speed with less hardware is due to parallel processing, which utilizes algorithms representing different parts of an equation that can be broken into simpler statements and processed simultaneously. Present, highly developed computer languages like FORTRAN, PASCAL, COBOL, etc., rely on sequential instructions. Thus, increased emphasis will now be directed at parallel processing algorithms to exploit the new architectures.

  3. Computer animation challenges for computational fluid dynamics

    NASA Astrophysics Data System (ADS)

    Vines, Mauricio; Lee, Won-Sook; Mavriplis, Catherine

    2012-07-01

    Computer animation requirements differ from those of traditional computational fluid dynamics (CFD) investigations in that visual plausibility and rapid frame update rates trump physical accuracy. We present an overview of the main techniques for fluid simulation in computer animation, starting with Eulerian grid approaches, the Lattice Boltzmann method, Fourier transform techniques and Lagrangian particle introduction. Adaptive grid methods, precomputation of results for model reduction, parallelisation and computation on graphical processing units (GPUs) are reviewed in the context of accelerating simulation computations for animation. A survey of current specific approaches for the application of these techniques to the simulation of smoke, fire, water, bubbles, mixing, phase change and solid-fluid coupling is also included. Adding plausibility to results through particle introduction, turbulence detail and concentration on regions of interest by level set techniques has elevated the degree of accuracy and realism of recent animations. Basic approaches are described here. Techniques to control the simulation to produce a desired visual effect are also discussed. Finally, some references to rendering techniques and haptic applications are mentioned to provide the reader with a complete picture of the challenges of simulating fluids in computer animation.

  4. Neural Computation and the Computational Theory of Cognition

    ERIC Educational Resources Information Center

    Piccinini, Gualtiero; Bahar, Sonya

    2013-01-01

    We begin by distinguishing computationalism from a number of other theses that are sometimes conflated with it. We also distinguish between several important kinds of computation: computation in a generic sense, digital computation, and analog computation. Then, we defend a weak version of computationalism--neural processes are computations in the…

  5. Neural Computation and the Computational Theory of Cognition

    ERIC Educational Resources Information Center

    Piccinini, Gualtiero; Bahar, Sonya

    2013-01-01

    We begin by distinguishing computationalism from a number of other theses that are sometimes conflated with it. We also distinguish between several important kinds of computation: computation in a generic sense, digital computation, and analog computation. Then, we defend a weak version of computationalism--neural processes are computations in the…

  6. Computer algebra and operators

    NASA Technical Reports Server (NTRS)

    Fateman, Richard; Grossman, Robert

    1989-01-01

    The symbolic computation of operator expansions is discussed. Some of the capabilities that prove useful when performing computer algebra computations involving operators are considered. These capabilities may be broadly divided into three areas: the algebraic manipulation of expressions from the algebra generated by operators; the algebraic manipulation of the actions of the operators upon other mathematical objects; and the development of appropriate normal forms and simplification algorithms for operators and their actions. Brief descriptions are given of the computer algebra computations that arise when working with various operators and their actions.

  7. Scalable optical quantum computer

    SciTech Connect

    Manykin, E A; Mel'nichenko, E V

    2014-12-31

    A way of designing a scalable optical quantum computer based on the photon echo effect is proposed. Individual rare earth ions Pr{sup 3+}, regularly located in the lattice of the orthosilicate (Y{sub 2}SiO{sub 5}) crystal, are suggested to be used as optical qubits. Operations with qubits are performed using coherent and incoherent laser pulses. The operation protocol includes both the method of measurement-based quantum computations and the technique of optical computations. Modern hybrid photon echo protocols, which provide a sufficient quantum efficiency when reading recorded states, are considered as most promising for quantum computations and communications. (quantum computer)

  8. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect

    DAVENPORT, J.

    2005-11-01

    The Brookhaven Computational Science Center brings together researchers in biology, chemistry, physics, and medicine with applied mathematicians and computer scientists to exploit the remarkable opportunities for scientific discovery which have been enabled by modern computers. These opportunities are especially great in computational biology and nanoscience, but extend throughout science and technology and include, for example, nuclear and high energy physics, astrophysics, materials and chemical science, sustainable energy, environment, and homeland security. To achieve our goals we have established a close alliance with applied mathematicians and computer scientists at Stony Brook and Columbia Universities.

  9. ALMA correlator computer systems

    NASA Astrophysics Data System (ADS)

    Pisano, Jim; Amestica, Rodrigo; Perez, Jesus

    2004-09-01

    We present a design for the computer systems which control, configure, and monitor the Atacama Large Millimeter Array (ALMA) correlator and process its output. Two distinct computer systems implement this functionality: a rack- mounted PC controls and monitors the correlator, and a cluster of 17 PCs process the correlator output into raw spectral results. The correlator computer systems interface to other ALMA computers via gigabit Ethernet networks utilizing CORBA and raw socket connections. ALMA Common Software provides the software infrastructure for this distributed computer environment. The control computer interfaces to the correlator via multiple CAN busses and the data processing computer cluster interfaces to the correlator via sixteen dedicated high speed data ports. An independent array-wide hardware timing bus connects to the computer systems and the correlator hardware ensuring synchronous behavior and imposing hard deadlines on the control and data processor computers. An aggregate correlator output of 1 gigabyte per second with 16 millisecond periods and computational data rates of approximately 1 billion floating point operations per second define other hard deadlines for the data processing computer cluster.

  10. Richard Feynman and computation

    NASA Astrophysics Data System (ADS)

    Hey, Tony

    1999-04-01

    The enormous contribution of Richard Feynman to modern physics is well known, both to teaching through his famous Feynman Lectures on Physics, and to research with his Feynman diagram approach to quantum field theory and his path integral formulation of quantum mechanics. Less well known perhaps is his long-standing interest in the physics of computation and this is the subject of this paper. Feynman lectured on computation at Caltech for most of the last decade of his life, first with John Hopfield and Carver Mead, and then with Gerry Sussman. The story of how these lectures came to be written up as the Feynman Lectures on Computation is briefly recounted. Feynman also discussed the fundamentals of computation with other legendary figures of the computer science and physics community such as Ed Fredkin, Rolf Landauer, Carver Mead, Marvin Minsky and John Wheeler. He was also instrumental in stimulating developments in both nanotechnology and quantum computing. During the 1980s Feynman re-visited long-standing interests both in parallel computing with Geoffrey Fox and Danny Hillis, and in reversible computation and quantum computing with Charles Bennett, Norman Margolus, Tom Toffoli and Wojciech Zurek. This paper records Feynman's links with the computational community and includes some reminiscences about his involvement with the fundamentals of computing.

  11. Computer-assisted psychotherapy

    PubMed Central

    Wright, Jesse H.; Wright, Andrew S.

    1997-01-01

    The rationale for using computers in psychotherapy includes the possibility that therapeutic software could improve the efficiency of treatment and provide access for greater numbers of patients. Computers have not been able to reliably duplicate the type of dialogue typically used in clinician-administered therapy. However, computers have significant strengths that can be used to advantage in designing treatment programs. Software developed for computer-assisted therapy generally has been well accepted by patients. Outcome studies have usually demonstrated treatment effectiveness for this form of therapy. Future development of computer tools may be influenced by changes in health care financing and rapid growth of new technologies. An integrated care delivery model incorporating the unique attributes of both clinicians and computers should be adopted for computer-assisted therapy. PMID:9292446

  12. Hyperswitch Communication Network Computer

    NASA Technical Reports Server (NTRS)

    Peterson, John C.; Chow, Edward T.; Priel, Moshe; Upchurch, Edwin T.

    1993-01-01

    Hyperswitch Communications Network (HCN) computer is prototype multiple-processor computer being developed. Incorporates improved version of hyperswitch communication network described in "Hyperswitch Network For Hypercube Computer" (NPO-16905). Designed to support high-level software and expansion of itself. HCN computer is message-passing, multiple-instruction/multiple-data computer offering significant advantages over older single-processor and bus-based multiple-processor computers, with respect to price/performance ratio, reliability, availability, and manufacturing. Design of HCN operating-system software provides flexible computing environment accommodating both parallel and distributed processing. Also achieves balance among following competing factors; performance in processing and communications, ease of use, and tolerance of (and recovery from) faults.

  13. Optimal Blind Quantum Computation

    NASA Astrophysics Data System (ADS)

    Mantri, Atul; Pérez-Delgado, Carlos A.; Fitzsimons, Joseph F.

    2013-12-01

    Blind quantum computation allows a client with limited quantum capabilities to interact with a remote quantum computer to perform an arbitrary quantum computation, while keeping the description of that computation hidden from the remote quantum computer. While a number of protocols have been proposed in recent years, little is currently understood about the resources necessary to accomplish the task. Here, we present general techniques for upper and lower bounding the quantum communication necessary to perform blind quantum computation, and use these techniques to establish concrete bounds for common choices of the client’s quantum capabilities. Our results show that the universal blind quantum computation protocol of Broadbent, Fitzsimons, and Kashefi, comes within a factor of (8)/(3) of optimal when the client is restricted to preparing single qubits. However, we describe a generalization of this protocol which requires exponentially less quantum communication when the client has a more sophisticated device.

  14. Hyperswitch Communication Network Computer

    NASA Technical Reports Server (NTRS)

    Peterson, John C.; Chow, Edward T.; Priel, Moshe; Upchurch, Edwin T.

    1993-01-01

    Hyperswitch Communications Network (HCN) computer is prototype multiple-processor computer being developed. Incorporates improved version of hyperswitch communication network described in "Hyperswitch Network For Hypercube Computer" (NPO-16905). Designed to support high-level software and expansion of itself. HCN computer is message-passing, multiple-instruction/multiple-data computer offering significant advantages over older single-processor and bus-based multiple-processor computers, with respect to price/performance ratio, reliability, availability, and manufacturing. Design of HCN operating-system software provides flexible computing environment accommodating both parallel and distributed processing. Also achieves balance among following competing factors; performance in processing and communications, ease of use, and tolerance of (and recovery from) faults.

  15. Desktop Computing Integration Project

    NASA Technical Reports Server (NTRS)

    Tureman, Robert L., Jr.

    1992-01-01

    The Desktop Computing Integration Project for the Human Resources Management Division (HRMD) of LaRC was designed to help division personnel use personal computing resources to perform job tasks. The three goals of the project were to involve HRMD personnel in desktop computing, link mainframe data to desktop capabilities, and to estimate training needs for the division. The project resulted in increased usage of personal computers by Awards specialists, an increased awareness of LaRC resources to help perform tasks, and personal computer output that was used in presentation of information to center personnel. In addition, the necessary skills for HRMD personal computer users were identified. The Awards Office was chosen for the project because of the consistency of their data requests and the desire of employees in that area to use the personal computer.

  16. Computational Biology and High Performance Computing 2000

    SciTech Connect

    Simon, Horst D.; Zorn, Manfred D.; Spengler, Sylvia J.; Shoichet, Brian K.; Stewart, Craig; Dubchak, Inna L.; Arkin, Adam P.

    2000-10-19

    The pace of extraordinary advances in molecular biology has accelerated in the past decade due in large part to discoveries coming from genome projects on human and model organisms. The advances in the genome project so far, happening well ahead of schedule and under budget, have exceeded any dreams by its protagonists, let alone formal expectations. Biologists expect the next phase of the genome project to be even more startling in terms of dramatic breakthroughs in our understanding of human biology, the biology of health and of disease. Only today can biologists begin to envision the necessary experimental, computational and theoretical steps necessary to exploit genome sequence information for its medical impact, its contribution to biotechnology and economic competitiveness, and its ultimate contribution to environmental quality. High performance computing has become one of the critical enabling technologies, which will help to translate this vision of future advances in biology into reality. Biologists are increasingly becoming aware of the potential of high performance computing. The goal of this tutorial is to introduce the exciting new developments in computational biology and genomics to the high performance computing community.

  17. Navier-Stokes Computations on Commodity Computers

    NASA Technical Reports Server (NTRS)

    Vatsa, Veer N.; Faulkner, Thomas R.

    1998-01-01

    In this paper we discuss and demonstrate the feasibility of solving high-fidelity, nonlinear computational fluid dynamics (CFD) problems of practical interest on commodity machines, namely Pentium Pro PC's. Such calculations have now become possible due to the progress in computational power and memory of the off-the-shelf commodity computers, along with the growth in bandwidth and communication speeds of networks. A widely used CFD code known as TLNS3D, which was developed originally on large shared memory computers was selected for this effort. This code has recently been ported to massively parallel processor (MPP) type machines, where natural partitioning along grid blocks is adopted in which one or more blocks are distributed to each of the available processors. In this paper, a similar approach is adapted to port this code to a cluster of Pentium Pro computers. The message passing among the processors is accomplished through the use of standard message passing interface (MPI) libraries. Scaling studies indicate fairly high level of parallelism on such clusters of commodity machines, thus making solutions to Navier-Stokes equations for practical problems more affordable.

  18. Computer Health Score

    SciTech Connect

    2016-08-03

    The algorithm develops a single health score for office computers, today just Windows, but we plan to extend this to Apple computers. The score is derived from various parameters, including: CPU Utilization Memory Utilization Various Error logs Disk Problems Disk write queue length It then uses a weighting scheme to balance these parameters and provide an overall health score. By using these parameters, we are not just assessing the theoretical performance of the components of the computer, rather we are using actual performance metrics that are selected to be a more realistic representation of the experience of the person using the computer. This includes compensating for the nature of their use. If there are two identical computers and the user of one places heavy demands on their computer compared with the user of the second computer, the former will have a lower health score. This allows us to provide a 'fit for purpose' score tailored to the assigned user. This is very helpful data to inform the mangers when individual computers need to be replaced. Additionally it provides specific information that can facilitate the fixing of the computer, to extend it's useful lifetime. This presents direct financial savings, time savings for users transferring from one computer to the next, and better environmental stewardship.

  19. Architecture Adaptive Computing Environment

    NASA Technical Reports Server (NTRS)

    Dorband, John E.

    2006-01-01

    Architecture Adaptive Computing Environment (aCe) is a software system that includes a language, compiler, and run-time library for parallel computing. aCe was developed to enable programmers to write programs, more easily than was previously possible, for a variety of parallel computing architectures. Heretofore, it has been perceived to be difficult to write parallel programs for parallel computers and more difficult to port the programs to different parallel computing architectures. In contrast, aCe is supportable on all high-performance computing architectures. Currently, it is supported on LINUX clusters. aCe uses parallel programming constructs that facilitate writing of parallel programs. Such constructs were used in single-instruction/multiple-data (SIMD) programming languages of the 1980s, including Parallel Pascal, Parallel Forth, C*, *LISP, and MasPar MPL. In aCe, these constructs are extended and implemented for both SIMD and multiple- instruction/multiple-data (MIMD) architectures. Two new constructs incorporated in aCe are those of (1) scalar and virtual variables and (2) pre-computed paths. The scalar-and-virtual-variables construct increases flexibility in optimizing memory utilization in various architectures. The pre-computed-paths construct enables the compiler to pre-compute part of a communication operation once, rather than computing it every time the communication operation is performed.

  20. Quantum analogue computing.

    PubMed

    Kendon, Vivien M; Nemoto, Kae; Munro, William J

    2010-08-13

    We briefly review what a quantum computer is, what it promises to do for us and why it is so hard to build one. Among the first applications anticipated to bear fruit is the quantum simulation of quantum systems. While most quantum computation is an extension of classical digital computation, quantum simulation differs fundamentally in how the data are encoded in the quantum computer. To perform a quantum simulation, the Hilbert space of the system to be simulated is mapped directly onto the Hilbert space of the (logical) qubits in the quantum computer. This type of direct correspondence is how data are encoded in a classical analogue computer. There is no binary encoding, and increasing precision becomes exponentially costly: an extra bit of precision doubles the size of the computer. This has important consequences for both the precision and error-correction requirements of quantum simulation, and significant open questions remain about its practicality. It also means that the quantum version of analogue computers, continuous-variable quantum computers, becomes an equally efficient architecture for quantum simulation. Lessons from past use of classical analogue computers can help us to build better quantum simulators in future.

  1. Computational approaches to computational aero-acoustics

    NASA Technical Reports Server (NTRS)

    Hardin, Jay C.

    1996-01-01

    The various techniques by which the goal of computational aeroacoustics (the calculation and noise prediction of a fluctuating fluid flow) may be achieved are reviewed. The governing equations for compressible fluid flow are presented. The direct numerical simulation approach is shown to be computationally intensive for high Reynolds number viscous flows. Therefore, other approaches, such as the acoustic analogy, vortex models and various perturbation techniques that aim to break the analysis into a viscous part and an acoustic part are presented. The choice of the approach is shown to be problem dependent.

  2. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect

    DAVENPORT, J.

    2006-11-01

    Computational Science is an integral component of Brookhaven's multi science mission, and is a reflection of the increased role of computation across all of science. Brookhaven currently has major efforts in data storage and analysis for the Relativistic Heavy Ion Collider (RHIC) and the ATLAS detector at CERN, and in quantum chromodynamics. The Laboratory is host for the QCDOC machines (quantum chromodynamics on a chip), 10 teraflop/s computers which boast 12,288 processors each. There are two here, one for the Riken/BNL Research Center and the other supported by DOE for the US Lattice Gauge Community and other scientific users. A 100 teraflop/s supercomputer will be installed at Brookhaven in the coming year, managed jointly by Brookhaven and Stony Brook, and funded by a grant from New York State. This machine will be used for computational science across Brookhaven's entire research program, and also by researchers at Stony Brook and across New York State. With Stony Brook, Brookhaven has formed the New York Center for Computational Science (NYCCS) as a focal point for interdisciplinary computational science, which is closely linked to Brookhaven's Computational Science Center (CSC). The CSC has established a strong program in computational science, with an emphasis on nanoscale electronic structure and molecular dynamics, accelerator design, computational fluid dynamics, medical imaging, parallel computing and numerical algorithms. We have been an active participant in DOES SciDAC program (Scientific Discovery through Advanced Computing). We are also planning a major expansion in computational biology in keeping with Laboratory initiatives. Additional laboratory initiatives with a dependence on a high level of computation include the development of hydrodynamics models for the interpretation of RHIC data, computational models for the atmospheric transport of aerosols, and models for combustion and for energy utilization. The CSC was formed to bring together

  3. Reconfigurable Computing for High Performance Computing Computational Science

    DTIC Science & Technology

    2007-06-01

    the C code for validation, key test of Blowfish algorithm is composed of: the secret key load, pre-processing, and encryption / decryption . The time...block bound easily add to the clock quantum to produce cipher , the algorithm supports a hash operation by using a interesting results. Overall, with...standard execution of encryption and with integer and bit-based computing technology. Here decryption functions with constant secret key for a set of we

  4. LPF Computation Revisited

    NASA Astrophysics Data System (ADS)

    Crochemore, Maxime; Ilie, Lucian; Iliopoulos, Costas S.; Kubica, Marcin; Rytter, Wojciech; Waleń, Tomasz

    We present efficient algorithms for storing past segments of a text. They are computed using two previously computed read-only arrays (SUF and LCP) composing the Suffix Array of the text. They compute the maximal length of the previous factor (subword) occurring at each position of the text in a table called LPF. This notion is central both in many conservative text compression techniques and in the most efficient algorithms for detecting motifs and repetitions occurring in a text.

  5. Sensor sentinel computing device

    DOEpatents

    Damico, Joseph P.

    2016-08-02

    Technologies pertaining to authenticating data output by sensors in an industrial environment are described herein. A sensor sentinel computing device receives time-series data from a sensor by way of a wireline connection. The sensor sentinel computing device generates a validation signal that is a function of the time-series signal. The sensor sentinel computing device then transmits the validation signal to a programmable logic controller in the industrial environment.

  6. Threats to Computer Systems

    DTIC Science & Technology

    1973-03-01

    subjects and objects of attacks contribute to the uniqueness of computer-related crime. For example, as the cashless , checkless society approaches...advancing computer tech- nology and security methods, and proliferation of computers in bringing about the paperless society . The universal use of...organizations do to society . Jerry Schneider, one of the known perpetrators, said that he was motivated to perform his acts to make money, for the

  7. Computer aided production engineering

    SciTech Connect

    Not Available

    1986-01-01

    This book presents the following contents: CIM in avionics; computer analysis of product designs for robot assembly; a simulation decision mould for manpower forecast and its application; development of flexible manufacturing system; advances in microcomputer applications in CAD/CAM; an automated interface between CAD and process planning; CAM and computer vision; low friction pneumatic actuators for accurate robot control; robot assembly of printed circuit boards; information systems design for computer integrated manufacture; and a CAD engineering language to aid manufacture.

  8. The Rabi Quantum Computer

    DTIC Science & Technology

    2001-04-01

    example that other students learn to make quantum computers does not quite meet the RQC specification, consider useful in many fields . I also want to...UNCLASSIFIED Defense Technical Information Center Compilation Part Notice ADP010869 TITLE: The Rabi Quantum Computer DISTRIBUTION: Approved for...comprise the compilation report: ADP010865 thru ADP010894 UNCLASSIFIED 5-1 The Rabi Quantum Computer Rudolph A. Krutar Advanced Information Technology’ U.S

  9. Computational structures technology

    NASA Technical Reports Server (NTRS)

    Noor, Ahmed K.

    1992-01-01

    Computational structures technology (CST), which has emerged from FEM developments, is a fusion of materials modeling, structural and dynamic analysis and synthesis methods, on the one hand, and numerical analysis and approximation theory, on the other. In addition to computational materials modeling, CST encompasses computational methods for predicting the response, performance, failure, and service life of structures and their components, as well as automated methods for structural synthesis and optimization.

  10. Mobile computing for radiology.

    PubMed

    Auffermann, William F; Chetlen, Alison L; Sharma, Arjun; Colucci, Andrew T; DeQuesada, Ivan M; Grajo, Joseph R; Kung, Justin W; Loehfelm, Thomas W; Sherry, Steven J

    2013-12-01

    The rapid advances in mobile computing technology have the potential to change the way radiology and medicine as a whole are practiced. Several mobile computing advances have not yet found application to the practice of radiology, while others have already been applied to radiology but are not in widespread clinical use. This review addresses several areas where radiology and medicine in general may benefit from adoption of the latest mobile computing technologies and speculates on potential future applications.

  11. Research in computer science

    NASA Technical Reports Server (NTRS)

    Ortega, J. M.

    1986-01-01

    Various graduate research activities in the field of computer science are reported. Among the topics discussed are: (1) failure probabilities in multi-version software; (2) Gaussian Elimination on parallel computers; (3) three dimensional Poisson solvers on parallel/vector computers; (4) automated task decomposition for multiple robot arms; (5) multi-color incomplete cholesky conjugate gradient methods on the Cyber 205; and (6) parallel implementation of iterative methods for solving linear equations.

  12. Factors Affecting Computer Anxiety in High School Computer Science Students.

    ERIC Educational Resources Information Center

    Hayek, Linda M.; Stephens, Larry

    1989-01-01

    Examines factors related to computer anxiety measured by the Computer Anxiety Index (CAIN). Achievement in two programing courses was inversely related to computer anxiety. Students who had a home computer and had computer experience before high school had lower computer anxiety than those who had not. Lists 14 references. (YP)

  13. The Social Computer

    NASA Astrophysics Data System (ADS)

    Serugendo, Giovanna Di Marzo; Risoldi, Matteo; Solemayni, Mohammad

    The following sections are included: * Introduction * Problem and Research Questions * State of the Art * TSC Structure and Computational Awareness * Methodology and Research Directions * Case Study: Democracy * Conclusions

  14. Highly parallel computation

    NASA Technical Reports Server (NTRS)

    Denning, Peter J.; Tichy, Walter F.

    1990-01-01

    Among the highly parallel computing architectures required for advanced scientific computation, those designated 'MIMD' and 'SIMD' have yielded the best results to date. The present development status evaluation of such architectures shown neither to have attained a decisive advantage in most near-homogeneous problems' treatment; in the cases of problems involving numerous dissimilar parts, however, such currently speculative architectures as 'neural networks' or 'data flow' machines may be entailed. Data flow computers are the most practical form of MIMD fine-grained parallel computers yet conceived; they automatically solve the problem of assigning virtual processors to the real processors in the machine.

  15. Computationally efficient multibody simulations

    NASA Technical Reports Server (NTRS)

    Ramakrishnan, Jayant; Kumar, Manoj

    1994-01-01

    Computationally efficient approaches to the solution of the dynamics of multibody systems are presented in this work. The computational efficiency is derived from both the algorithmic and implementational standpoint. Order(n) approaches provide a new formulation of the equations of motion eliminating the assembly and numerical inversion of a system mass matrix as required by conventional algorithms. Computational efficiency is also gained in the implementation phase by the symbolic processing and parallel implementation of these equations. Comparison of this algorithm with existing multibody simulation programs illustrates the increased computational efficiency.

  16. Cloud Computing: An Overview

    NASA Astrophysics Data System (ADS)

    Qian, Ling; Luo, Zhiguo; Du, Yujian; Guo, Leitao

    In order to support the maximum number of user and elastic service with the minimum resource, the Internet service provider invented the cloud computing. within a few years, emerging cloud computing has became the hottest technology. From the publication of core papers by Google since 2003 to the commercialization of Amazon EC2 in 2006, and to the service offering of AT&T Synaptic Hosting, the cloud computing has been evolved from internal IT system to public service, from cost-saving tools to revenue generator, and from ISP to telecom. This paper introduces the concept, history, pros and cons of cloud computing as well as the value chain and standardization effort.

  17. Optimization of computations

    SciTech Connect

    Mikhalevich, V.S.; Sergienko, I.V.; Zadiraka, V.K.; Babich, M.D.

    1994-11-01

    This article examines some topics of optimization of computations, which have been discussed at 25 seminar-schools and symposia organized by the V.M. Glushkov Institute of Cybernetics of the Ukrainian Academy of Sciences since 1969. We describe the main directions in the development of computational mathematics and present some of our own results that reflect a certain design conception of speed-optimal and accuracy-optimal (or nearly optimal) algorithms for various classes of problems, as well as a certain approach to optimization of computer computations.

  18. Computational approaches to vision

    NASA Technical Reports Server (NTRS)

    Barrow, H. G.; Tenenbaum, J. M.

    1986-01-01

    Vision is examined in terms of a computational process, and the competence, structure, and control of computer vision systems are analyzed. Theoretical and experimental data on the formation of a computer vision system are discussed. Consideration is given to early vision, the recovery of intrinsic surface characteristics, higher levels of interpretation, and system integration and control. A computational visual processing model is proposed and its architecture and operation are described. Examples of state-of-the-art vision systems, which include some of the levels of representation and processing mechanisms, are presented.

  19. Computing by Observing Changes

    NASA Astrophysics Data System (ADS)

    Cavaliere, Matteo; Leupold, Peter

    Computing by Observing is a paradigm for the implementation of models of Natural Computing. It was inspired by the setup of experiments in biochemistry. One central feature is an observer that translates the evolution of an underlying observed system into sequences over a finite alphabet. We take a step toward more realistic observers by allowing them to notice only an occurring change in the observed system rather than to read the system's entire configuration. Compared to previous implementations of the Computing by Observing paradigm, this decreases the computational power; but with relatively simple systems we still obtain the language class generated by matrix grammars.

  20. Hot ice computer

    NASA Astrophysics Data System (ADS)

    Adamatzky, Andrew

    2009-12-01

    We experimentally demonstrate that supersaturated solution of sodium acetate, commonly called ‘hot ice’, is a massively-parallel unconventional computer. In the hot ice computer data are represented by a spatial configuration of crystallization induction sites and physical obstacles immersed in the experimental container. Computation is implemented by propagation and interaction of growing crystals initiated at the data-sites. We discuss experimental prototypes of hot ice processors which compute planar Voronoi diagram, shortest collision-free paths and implement AND and OR logical gates.

  1. Scalable optical quantum computer

    NASA Astrophysics Data System (ADS)

    Manykin, E. A.; Mel'nichenko, E. V.

    2014-12-01

    A way of designing a scalable optical quantum computer based on the photon echo effect is proposed. Individual rare earth ions Pr3+, regularly located in the lattice of the orthosilicate (Y2SiO5) crystal, are suggested to be used as optical qubits. Operations with qubits are performed using coherent and incoherent laser pulses. The operation protocol includes both the method of measurement-based quantum computations and the technique of optical computations. Modern hybrid photon echo protocols, which provide a sufficient quantum efficiency when reading recorded states, are considered as most promising for quantum computations and communications.

  2. Fifth generation computers

    NASA Astrophysics Data System (ADS)

    Treleaven, Philip C.; Lima, Isabel Gouveia

    1982-06-01

    Fifth generation computers are analogous to LEGO building blocks, with each block corresponding to a microcomputer and a group of blocks working together as a computer system. These computers will represent a unification of currently separate areas of research into parallel processing and into VLSI processors. Parallel processing based on data driven and demand driven computer organisations are under investigation in well over thirty laboratories in the United States, Japan and Europe. Basically, in data driven (e.g. data flow) computers the availability of operands triggers the execution of the operation to be performed on them; whereas in demand driven (e.g. reduction) computers the requirement for a result triggers the operation that will generate the value. VLSI processors exploit very large scale integration and the new simplified chip design methodology pioneered in US universities by Mead and Conway, allowing users to design their own chips. These novel VLSI processors are implementable by simple replicated cells and use extensive pipelining and multiprocessing to achieve a high performance. Examples range from a powerful image processing device configured from identical special-purpose chips, to a large parallel computer built from replicated general-purpose microcomputers. This paper outlines these topics contributing to fifth generation computers, and speculates on their effect on computing.

  3. Computational approaches to vision

    NASA Technical Reports Server (NTRS)

    Barrow, H. G.; Tenenbaum, J. M.

    1986-01-01

    Vision is examined in terms of a computational process, and the competence, structure, and control of computer vision systems are analyzed. Theoretical and experimental data on the formation of a computer vision system are discussed. Consideration is given to early vision, the recovery of intrinsic surface characteristics, higher levels of interpretation, and system integration and control. A computational visual processing model is proposed and its architecture and operation are described. Examples of state-of-the-art vision systems, which include some of the levels of representation and processing mechanisms, are presented.

  4. Computer Confrontation: Suppes and Albrecht

    ERIC Educational Resources Information Center

    Suppes, Patrick; Albrecht, Bob

    1973-01-01

    Two well-known computer specialists argue about the function of computers in schools. Patrick Suppes believes mastery of basic skills is the prime function of computers. Bob Albrecht believes computers should be learning devices and not drill masters. (DS)

  5. Computer Architecture's Changing Role in Rebooting Computing

    DOE PAGES

    DeBenedictis, Erik P.

    2017-04-26

    In this paper, Windows 95 started the Wintel era, in which Microsoft Windows running on Intel x86 microprocessors dominated the computer industry and changed the world. Retaining the x86 instruction set across many generations let users buy new and more capable microprocessors without having to buy software to work with new architectures.

  6. Educational Computer Utilization and Computer Communications.

    ERIC Educational Resources Information Center

    Singh, Jai P.; Morgan, Robert P.

    As part of an analysis of educational needs and telecommunications requirements for future educational satellite systems, three studies were carried out. 1) The role of the computer in education was examined and both current status and future requirements were analyzed. Trade-offs between remote time sharing and remote batch process were explored…

  7. Introduction: The Computer After Me

    NASA Astrophysics Data System (ADS)

    Pitt, Jeremy

    The following sections are included: * Introduction * Computer Awareness in Science Fiction * Computer Awareness and Self-Awareness * How many senses does a computer have? * Does a computer know that it is a computer? * Does metal know when it is weakening? * Why Does Computer Awareness Matter? * Chapter Overviews * Summary and Conclusions

  8. Computer Awareness for Rural Educators.

    ERIC Educational Resources Information Center

    Barker, Bruce O.

    The meteoric rise of the computer age is a challenge for public educators, many of whom are still unfamiliar with basic computer technology. Yet many educators are finding that they can correct their misconceptions about computers by becoming "computer aware." Computer awareness comes from gaining a knowledge of computer history; a basic…

  9. Nature, computation and complexity

    NASA Astrophysics Data System (ADS)

    Binder, P.-M.; Ellis, G. F. R.

    2016-06-01

    The issue of whether the unfolding of events in the world can be considered a computation is explored in this paper. We come to different conclusions for inert and for living systems (‘no’ and ‘qualified yes’, respectively). We suggest that physical computation as we know it exists only as a tool of complex biological systems: us.

  10. Computer analysis of arteriograms

    NASA Technical Reports Server (NTRS)

    Selzer, R. H.; Armstrong, J. H.; Beckenbach, E. B.; Blankenhorn, D. H.; Crawford, D. W.; Brooks, S. H.; Sanmarco, M. E.

    1977-01-01

    A computer system has been developed to quantify the degree of atherosclerosis in the human femoral artery. The analysis involves first scanning and digitizing angiographic film, then tracking the outline of the arterial image and finally computing the relative amount of roughness or irregularity in the vessel wall. The image processing system and method are described.

  11. Computers and Personal Privacy.

    ERIC Educational Resources Information Center

    Ware, Willis H.

    Privacy is an issue that arises from the intersection of a demand for improved recordkeeping processes, and computing technology as the response to the demand. Recordkeeping in the United States centers on information about people. Modern day computing technology has the ability to maintain, store, and retrieve records quickly; however, this…

  12. Preventing Computer Glitches

    ERIC Educational Resources Information Center

    Goldsborough, Reid

    2009-01-01

    It has been said that a computer lets a person make more mistakes faster than any other invention in human history, with the possible exceptions of handguns and tequila. Computers also make mistakes on their own, whether they're glitches, conflicts, bugs, crashes, or failures. Avoiding glitches is considerably less frustrating than trying to fix…

  13. Flexible Animation Computer Program

    NASA Technical Reports Server (NTRS)

    Stallcup, Scott S.

    1990-01-01

    FLEXAN (Flexible Animation), computer program animating structural dynamics on Evans and Sutherland PS300-series graphics workstation with VAX/VMS host computer. Typical application is animation of spacecraft undergoing structural stresses caused by thermal and vibrational effects. Displays distortions in shape of spacecraft. Program displays single natural mode of vibration, mode history, or any general deformation of flexible structure. Written in FORTRAN 77.

  14. Flexible Animation Computer Program

    NASA Technical Reports Server (NTRS)

    Stallcup, Scott S.

    1990-01-01

    FLEXAN (Flexible Animation), computer program animating structural dynamics on Evans and Sutherland PS300-series graphics workstation with VAX/VMS host computer. Typical application is animation of spacecraft undergoing structural stresses caused by thermal and vibrational effects. Displays distortions in shape of spacecraft. Program displays single natural mode of vibration, mode history, or any general deformation of flexible structure. Written in FORTRAN 77.

  15. Computers and School Reform.

    ERIC Educational Resources Information Center

    McDaniel, Ernest; And Others

    1993-01-01

    Discusses ways in which computers can be used to help school reform by shifting the emphasis from information transmission to information processing. Highlights include creating learning communities that extend beyond the classroom; educationally oriented computer networks; Professional Development Schools for curriculum development; and new…

  16. Learning with Ubiquitous Computing

    ERIC Educational Resources Information Center

    Rosenheck, Louisa

    2008-01-01

    If ubiquitous computing becomes a reality and is widely adopted, it will inevitably have an impact on education. This article reviews the background of ubiquitous computing and current research projects done involving educational "ubicomp." Finally it explores how ubicomp may and may not change education in both formal and informal settings and…

  17. Campus Computing Strategies.

    ERIC Educational Resources Information Center

    McCredie, John W., Ed.

    Ten case studies that describe the planning process and strategies employed by colleges who use computing and communication systems are presented, based on a 1981-1982 study conducted by EDUCOM. An introduction by John W. McCredie summarizes several current and future effects of the rapid spread and integration of computing and communication…

  18. Computations in Plasma Physics.

    ERIC Educational Resources Information Center

    Cohen, Bruce I.; Killeen, John

    1983-01-01

    Discusses contributions of computers to research in magnetic and inertial-confinement fusion, charged-particle-beam propogation, and space sciences. Considers use in design/control of laboratory and spacecraft experiments and in data acquisition; and reviews major plasma computational methods and some of the important physics problems they…

  19. The Economics of Computers.

    ERIC Educational Resources Information Center

    Sharpe, William F.

    A microeconomic theory is applied in this book to computer services and costs and for the benefit of those who are decision-makers in the selection, financing, and use of computers. Subtopics of the theory discussed include value and demand; revenue and profits; time and risk; and costs, inputs, and outputs. Application of the theory is explained…

  20. Computer Aided Art Major.

    ERIC Educational Resources Information Center

    Gibson, Jim

    The Computer Aided Art program offered at Northern State State University (Aberdeen, South Dakota), is coordinated with the traditional art major. The program is designed to familiarize students with a wide range of art-related computer hardware and software and their applications and to prepare students for problem-solving with unfamiliar…

  1. Computational Modeling of Tires

    NASA Technical Reports Server (NTRS)

    Noor, Ahmed K. (Compiler); Tanner, John A. (Compiler)

    1995-01-01

    This document contains presentations and discussions from the joint UVA/NASA Workshop on Computational Modeling of Tires. The workshop attendees represented NASA, the Army and Air force, tire companies, commercial software developers, and academia. The workshop objectives were to assess the state of technology in the computational modeling of tires and to provide guidelines for future research.

  2. Computer Series, 78.

    ERIC Educational Resources Information Center

    Moore, John W., Ed.

    1986-01-01

    Presents six brief articles dealing with the use of computers in teaching various topics in chemistry. Describes hardware and software applications which relate to protein graphics, computer simulated metabolism, interfaces between microcomputers and measurement devices, courseware available for spectrophotometers, and the calculation of elemental…

  3. Computers, Networks and Education.

    ERIC Educational Resources Information Center

    Kay, Alan C.

    1991-01-01

    Discussed is how globally networked, easy-to-use computers can enhance learning only within an educational environment that encourages students to question "facts" and seek challenges. The strengths and weaknesses of computers used as amplifiers for learning are described. (KR)

  4. Uncertainty in Computational Aerodynamics

    NASA Technical Reports Server (NTRS)

    Luckring, J. M.; Hemsch, M. J.; Morrison, J. H.

    2003-01-01

    An approach is presented to treat computational aerodynamics as a process, subject to the fundamental quality assurance principles of process control and process improvement. We consider several aspects affecting uncertainty for the computational aerodynamic process and present a set of stages to determine the level of management required to meet risk assumptions desired by the customer of the predictions.

  5. Programming the social computer.

    PubMed

    Robertson, David; Giunchiglia, Fausto

    2013-03-28

    The aim of 'programming the global computer' was identified by Milner and others as one of the grand challenges of computing research. At the time this phrase was coined, it was natural to assume that this objective might be achieved primarily through extending programming and specification languages. The Internet, however, has brought with it a different style of computation that (although harnessing variants of traditional programming languages) operates in a style different to those with which we are familiar. The 'computer' on which we are running these computations is a social computer in the sense that many of the elementary functions of the computations it runs are performed by humans, and successful execution of a program often depends on properties of the human society over which the program operates. These sorts of programs are not programmed in a traditional way and may have to be understood in a way that is different from the traditional view of programming. This shift in perspective raises new challenges for the science of the Web and for computing in general.

  6. Videodisc-Computer Interfaces.

    ERIC Educational Resources Information Center

    Zollman, Dean

    1984-01-01

    Lists microcomputer-videodisc interfaces currently available from 26 sources, including home use systems connected through remote control jack and industrial/educational systems utilizing computer ports and new laser reflective and stylus technology. Information provided includes computer and videodisc type, language, authoring system, educational…

  7. Computers and Personal Privacy.

    ERIC Educational Resources Information Center

    Ware, Willis H.

    Privacy is an issue that arises from the intersection of a demand for improved recordkeeping processes, and computing technology as the response to the demand. Recordkeeping in the United States centers on information about people. Modern day computing technology has the ability to maintain, store, and retrieve records quickly; however, this…

  8. Computer controlled antenna system

    NASA Technical Reports Server (NTRS)

    Raumann, N. A.

    1972-01-01

    The application of small computers using digital techniques for operating the servo and control system of large antennas is discussed. The advantages of the system are described. The techniques were evaluated with a forty foot antenna and the Sigma V computer. Programs have been completed which drive the antenna directly without the need for a servo amplifier, antenna position programmer or a scan generator.

  9. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell, Ed.

    1988-01-01

    Describes three situations in which computer software was used in a chemistry laboratory. Discusses interfacing voltage output instruments with Apple II computers and using spreadsheet programs to simulate gas chromatography and analysis of kinetic data. Includes information concerning procedures, hardware, and software used in each situation. (CW)

  10. Uncertainty in Computational Aerodynamics

    NASA Technical Reports Server (NTRS)

    Luckring, J. M.; Hemsch, M. J.; Morrison, J. H.

    2003-01-01

    An approach is presented to treat computational aerodynamics as a process, subject to the fundamental quality assurance principles of process control and process improvement. We consider several aspects affecting uncertainty for the computational aerodynamic process and present a set of stages to determine the level of management required to meet risk assumptions desired by the customer of the predictions.

  11. Statistical Mapping by Computer.

    ERIC Educational Resources Information Center

    Utano, Jack J.

    The function of a statistical map is to provide readers with a visual impression of the data so that they may be able to identify any geographic characteristics of the displayed phenomena. The increasingly important role played by the computer in the production of statistical maps is manifested by the varied examples of computer maps in recent…

  12. Computational chemistry at Janssen

    NASA Astrophysics Data System (ADS)

    van Vlijmen, Herman; Desjarlais, Renee L.; Mirzadegan, Tara

    2016-12-01

    Computer-aided drug discovery activities at Janssen are carried out by scientists in the Computational Chemistry group of the Discovery Sciences organization. This perspective gives an overview of the organizational and operational structure, the science, internal and external collaborations, and the impact of the group on Drug Discovery at Janssen.

  13. Quantum Analog Computing

    NASA Technical Reports Server (NTRS)

    Zak, M.

    1998-01-01

    Quantum analog computing is based upon similarity between mathematical formalism of quantum mechanics and phenomena to be computed. It exploits a dynamical convergence of several competing phenomena to an attractor which can represent an externum of a function, an image, a solution to a system of ODE, or a stochastic process.

  14. Teaching Using Computer Games

    ERIC Educational Resources Information Center

    Miller, Lee Dee; Shell, Duane; Khandaker, Nobel; Soh, Leen-Kiat

    2011-01-01

    Computer games have long been used for teaching. Current reviews lack categorization and analysis using learning models which would help instructors assess the usefulness of computer games. We divide the use of games into two classes: game playing and game development. We discuss the Input-Process-Outcome (IPO) model for the learning process when…

  15. Computer Technology for Industry

    NASA Technical Reports Server (NTRS)

    1979-01-01

    In this age of the computer, more and more business firms are automating their operations for increased efficiency in a great variety of jobs, from simple accounting to managing inventories, from precise machining to analyzing complex structures. In the interest of national productivity, NASA is providing assistance both to longtime computer users and newcomers to automated operations. Through a special technology utilization service, NASA saves industry time and money by making available already developed computer programs which have secondary utility. A computer program is essentially a set of instructions which tells the computer how to produce desired information or effect by drawing upon its stored input. Developing a new program from scratch can be costly and time-consuming. Very often, however, a program developed for one purpose can readily be adapted to a totally different application. To help industry take advantage of existing computer technology, NASA operates the Computer Software Management and Information Center (COSMIC)(registered TradeMark),located at the University of Georgia. COSMIC maintains a large library of computer programs developed for NASA, the Department of Defense, the Department of Energy and other technology-generating agencies of the government. The Center gets a continual flow of software packages, screens them for adaptability to private sector usage, stores them and informs potential customers of their availability.

  16. African Studies Computer Resources.

    ERIC Educational Resources Information Center

    Kuntz, Patricia S.

    African studies computer resources that are readily available in the United States with linkages to Africa are described, highlighting those most directly corresponding to African content. Africanists can use the following four fundamental computer systems: (1) Internet/Bitnet; (2) Fidonet; (3) Usenet; and (4) dial-up bulletin board services. The…

  17. Chippy's Computer Words.

    ERIC Educational Resources Information Center

    Willing, Kathlene R.; Girard, Suzanne

    Intended for young children just becoming familiar with computers, this naming book introduces and reinforces new computer vocabulary and concepts. The 20 words are presented alphabetically, along with illustrations, providing room for different activities in which children can match and name the pictures and words. The 20 vocabulary items are…

  18. Profiling Computing Coordinators.

    ERIC Educational Resources Information Center

    Edwards, Sigrid; Morton, Allan

    The people responsible for managing school computing resources in Australia have become known as Computing Coordinators. To date there has been no large systematic study of the role, responsibilities and characteristics of this position. This paper represents a first attempt to provide information on the functions and attributes of the Computing…

  19. Computer Yearbook 72.

    ERIC Educational Resources Information Center

    1972

    Recent and expected developments in the computer industry are discussed in this 628-page yearbook, successor to "The Punched Card Annual." The first section of the report is an overview of current computer hardware and software and includes articles about future applications of mainframes, an analysis of the software industry, and a summary of the…

  20. Operating efficiency of computers

    NASA Technical Reports Server (NTRS)

    Pac, J.

    1977-01-01

    A method is outlined which can be used to guarantee to users of computing systems a measure of operating efficiency. The monthly utilization coefficient should be equal to or exceed a value agreed on in advance. In addition, the repair time during a computer breakdown should not be longer than a period agreed on in advance.

  1. Computers on Wheels.

    ERIC Educational Resources Information Center

    Rosemead Elementary School District, CA.

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: How does a school provide the computer learning experiences for students given the paucity of available funding for hardware, software, and staffing? Here is what one school, Emma W. Shuey in Rosemead, did after exploratory research on computers by a committee of teachers and administrators. The…

  2. Learning with Ubiquitous Computing

    ERIC Educational Resources Information Center

    Rosenheck, Louisa

    2008-01-01

    If ubiquitous computing becomes a reality and is widely adopted, it will inevitably have an impact on education. This article reviews the background of ubiquitous computing and current research projects done involving educational "ubicomp." Finally it explores how ubicomp may and may not change education in both formal and informal settings and…

  3. Computer Series, 78.

    ERIC Educational Resources Information Center

    Moore, John W., Ed.

    1986-01-01

    Presents six brief articles dealing with the use of computers in teaching various topics in chemistry. Describes hardware and software applications which relate to protein graphics, computer simulated metabolism, interfaces between microcomputers and measurement devices, courseware available for spectrophotometers, and the calculation of elemental…

  4. Computer Literacy Project 1983.

    ERIC Educational Resources Information Center

    El Dorado County Office of Education, Placerville, CA.

    A K-12 computer literacy course of study is presented. Four basic parts are included: (1) a reference index which organizes 37 computer literacy topics into seven major categories; (2) a master index which presents goals for each topic by grade level and lists a reference number for each goal; (3) a scope and sequence organized by grade level…

  5. UltraScale Computing

    NASA Astrophysics Data System (ADS)

    Maynard, , Jr.

    1997-08-01

    The Defense Advanced Research Projects Agency Information Technology Office (DARPA/ITO) supports research in technology for defense-critical applications. Defense Applications are always insatiable consumers of computing. Futuristic applications such as automated image interpretation/whole vehicle radar-cross-section/real-time prototyping/faster-than-real-time simulation will require computing capabilities orders-of-magnitude beyond the best performance that can be projected from contemporary scalable parallel processors. To reach beyond the silicon digital paradigm, DARPA has initiated a program in UltraScale Computing to explore the domain of innovative computational models, methods, and mechanisms. The objective is to encourage a complete re-thinking of computing. Novel architectures, program synthesis, and execution environments are needed as well as alternative underlying physical mechanisms including molecular, biological, optical and quantum mechanical processes. Development of these advanced computing technologies will offer spectacular performance and cost improvements beyond the threshold of traditional materials and processes. The talk will focus on novel approaches for employing vastly more computational units than shrinking transistors will enable and exploration of the biological options for solving computationally difficult problems.

  6. Computer Virus Protection

    ERIC Educational Resources Information Center

    Rajala, Judith B.

    2004-01-01

    A computer virus is a program--a piece of executable code--that has the unique ability to replicate. Like biological viruses, computer viruses can spread quickly and are often difficult to eradicate. They can attach themselves to just about any type of file, and are spread by replicating and being sent from one individual to another. Simply having…

  7. Computer Series, 97.

    ERIC Educational Resources Information Center

    Kay, Jack G.; And Others

    1988-01-01

    Describes two applications of the microcomputer for laboratory exercises. Explores radioactive decay using the Batemen equations on a Macintosh computer. Provides examples and screen dumps of data. Investigates polymer configurations using a Monte Carlo simulation on an IBM personal computer. (MVL)

  8. Parallel and Distributed Computing.

    DTIC Science & Technology

    1986-12-12

    program was devoted to parallel and distributed computing . Support for this part of the program was obtained from the present Army contract and a...Umesh Vazirani. A workshop on parallel and distributed computing was held from May 19 to May 23, 1986 and drew 141 participants. Keywords: Mathematical programming; Protocols; Randomized algorithms. (Author)

  9. Computer grading of examinations

    NASA Technical Reports Server (NTRS)

    Frigerio, N. A.

    1969-01-01

    A method, using IBM cards and computer processing, automates examination grading and recording and permits use of computational problems. The student generates his own answers, and the instructor has much greater freedom in writing questions than is possible with multiple choice examinations.

  10. Computers as Cognitive Tools.

    ERIC Educational Resources Information Center

    Lajoie, Susanne P., Ed.; Derry, Sharon J., Ed.

    This book provides exemplars of the types of computer-based learning environments represented by the theoretical camps within the field and the practical applications of the theories. The contributors discuss a variety of computer applications to learning, ranging from school-related topics such as geometry, algebra, biology, history, physics, and…

  11. Computer Series, 97.

    ERIC Educational Resources Information Center

    Kay, Jack G.; And Others

    1988-01-01

    Describes two applications of the microcomputer for laboratory exercises. Explores radioactive decay using the Batemen equations on a Macintosh computer. Provides examples and screen dumps of data. Investigates polymer configurations using a Monte Carlo simulation on an IBM personal computer. (MVL)

  12. Computer Room Water Protection.

    ERIC Educational Resources Information Center

    Price, Bennett J.

    1990-01-01

    Addresses the protection of computer rooms from water. Sources of water and potentially vulnerable areas in computer rooms are described. Water detection is then discussed, and several detection systems are detailed. Prices and manufacturers' telephone numbers for some of the systems are included. Water cleanup is also briefly considered. (MES)

  13. Computing with Connections,

    DTIC Science & Technology

    1981-04-01

    interesting behaviors. Artificial intelligence and articulating cognitive sciences have made great progress by employing models based on conventional...digital computers as theories of intelligent behavior. But a number of crucial phenomena such as associative memory, priming, perceptual rivalry, and...appropriately connected to large numbers of similar units. This is in sharp contrast to the conventional computer model of intelligence prevalent in

  14. Logic via Computer Programming.

    ERIC Educational Resources Information Center

    Wieschenberg, Agnes A.

    This paper proposed the question "How do we teach logical thinking and sophisticated mathematics to unsophisticated college students?" One answer among many is through the writing of computer programs. The writing of computer algorithms is mathematical problem solving and logic in disguise and it may attract students who would otherwise stop…

  15. Metacomputing on Commodity Computers

    DTIC Science & Technology

    1999-05-01

    Journal on Future Generation Computer Systems , 1999. [17] L. Beca, G. Cheng, G. Fox, T. Jurga, K. Olszewski, M. Podgorny, P. Sokol- wski, and K...Katramatos, J. Karpovich, and A. Grimshaw. Resource man- agement in Legion. International Journal on Future Generation Computer Systems (to appear

  16. Quantum Analog Computing

    NASA Technical Reports Server (NTRS)

    Zak, M.

    1998-01-01

    Quantum analog computing is based upon similarity between mathematical formalism of quantum mechanics and phenomena to be computed. It exploits a dynamical convergence of several competing phenomena to an attractor which can represent an externum of a function, an image, a solution to a system of ODE, or a stochastic process.

  17. Computational physics: a perspective.

    PubMed

    Stoneham, A M

    2002-06-15

    Computing comprises three distinct strands: hardware, software and the ways they are used in real or imagined worlds. Its use in research is more than writing or running code. Having something significant to compute and deploying judgement in what is attempted and achieved are especially challenging. In science or engineering, one must define a central problem in computable form, run such software as is appropriate and, last but by no means least, convince others that the results are both valid and useful. These several strands are highly interdependent. A major scientific development can transform disparate aspects of information and computer technologies. Computers affect the way we do science, as well as changing our personal worlds. Access to information is being transformed, with consequences beyond research or even science. Creativity in research is usually considered uniquely human, with inspiration a central factor. Scientific and technological needs are major forces in innovation, and these include hardware and software opportunities. One can try to define the scientific needs for established technologies (atomic energy, the early semiconductor industry), for rapidly developing technologies (advanced materials, microelectronics) and for emerging technologies (nanotechnology, novel information technologies). Did these needs define new computing, or was science diverted into applications of then-available codes? Regarding credibility, why is it that engineers accept computer realizations when designing engineered structures, whereas predictive modelling of materials has yet to achieve industrial confidence outside very special cases? The tensions between computing and traditional science are complex, unpredictable and potentially powerful.

  18. Computers in the Classroom.

    ERIC Educational Resources Information Center

    Merton, Andrew

    1983-01-01

    Major computer manufacturers are donating microcomputers to school systems. Discusses whether or not these computers in the classroom will help spur a "back to basics" movement or prove to be an expensive and largely tangential sideshow. Considers software, software evaluation, skill transfer, and other topics. (JN)

  19. Classroom Computer Network.

    ERIC Educational Resources Information Center

    Lent, John

    1984-01-01

    This article describes a computer network system that connects several microcomputers to a single disk drive and one copy of software. Many schools are switching to networks as a cheaper and more efficient means of computer instruction. Teachers may be faced with copywriting problems when reproducing programs. (DF)

  20. Computational chemistry at Janssen.

    PubMed

    van Vlijmen, Herman; Desjarlais, Renee L; Mirzadegan, Tara

    2017-03-01

    Computer-aided drug discovery activities at Janssen are carried out by scientists in the Computational Chemistry group of the Discovery Sciences organization. This perspective gives an overview of the organizational and operational structure, the science, internal and external collaborations, and the impact of the group on Drug Discovery at Janssen.

  1. Computer Augmented Video Education.

    ERIC Educational Resources Information Center

    Sousa, M. B.

    1979-01-01

    Describes project CAVE (Computer Augmented Video Education), an ongoing effort at the U.S. Naval Academy to present lecture material on videocassette tape, reinforced by drill and practice through an interactive computer system supported by a 12 channel closed circuit television distribution and production facility. (RAO)

  2. Connecting Kids and Computers

    ERIC Educational Resources Information Center

    Giles, Rebecca McMahon

    2006-01-01

    Exposure to cell phones, DVD players, video games, computers, digital cameras, and iPods has made today's young people more technologically advanced than those of any previous generation. As a result, parents are now concerned that their children are spending too much time in front of the computer. In this article, the author focuses her…

  3. Who Owns Computer Software?

    ERIC Educational Resources Information Center

    Branscomb, Anne Wells

    1995-01-01

    Discusses the protection of intellectual property as it applies to computer software and its impact on private enterprise and the public good. Highlights include the role of patents, copyrights, and trade secrets; some court cases; and recommendations for alternatives to the existing legal framework for protecting computer software. (KRN)

  4. ELECTRONIC DIGITAL COMPUTER

    DOEpatents

    Stone, J.J. Jr.; Bettis, E.S.; Mann, E.R.

    1957-10-01

    The electronic digital computer is designed to solve systems involving a plurality of simultaneous linear equations. The computer can solve a system which converges rather rapidly when using Von Seidel's method of approximation and performs the summations required for solving for the unknown terms by a method of successive approximations.

  5. Computer Programmer/Analyst.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This publication contains 25 subjects appropriate for use in a competency list for the occupation of computer programmer/analyst, 1 of 12 occupations within the business/computer technologies cluster. Each unit consists of a number of competencies; a list of competency builders is provided for each competency. Titles of the 25 units are as…

  6. Computers, Networks and Education.

    ERIC Educational Resources Information Center

    Kay, Alan C.

    1991-01-01

    Discussed is how globally networked, easy-to-use computers can enhance learning only within an educational environment that encourages students to question "facts" and seek challenges. The strengths and weaknesses of computers used as amplifiers for learning are described. (KR)

  7. Computer Programmer/Analyst.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This publication contains 25 subjects appropriate for use in a competency list for the occupation of computer programmer/analyst, 1 of 12 occupations within the business/computer technologies cluster. Each unit consists of a number of competencies; a list of competency builders is provided for each competency. Titles of the 25 units are as…

  8. Computer Software Reviews.

    ERIC Educational Resources Information Center

    Hawaii State Dept. of Education, Honolulu. Office of Instructional Services.

    Intended to provide guidance in the selection of the best computer software available to support instruction and to make optimal use of schools' financial resources, this publication provides a listing of computer software programs that have been evaluated according to their currency, relevance, and value to Hawaii's educational programs. The…

  9. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell H., Ed.

    1989-01-01

    Discussed are some uses of computers in chemistry classrooms. Described are: (1) interactive chromatographic analysis software; (2) computer interface for a digital frequency-period-counter-ratio meter and analog interface based on a voltage-to-frequency converter; and (3) use of spectrometer/microcomputer arrangement for teaching atomic theory.…

  10. Computer analysis of arteriograms

    NASA Technical Reports Server (NTRS)

    Selzer, R. H.; Armstrong, J. H.; Beckenbach, E. B.; Blankenhorn, D. H.; Crawford, D. W.; Brooks, S. H.; Sanmarco, M. E.

    1977-01-01

    A computer system has been developed to quantify the degree of atherosclerosis in the human femoral artery. The analysis involves first scanning and digitizing angiographic film, then tracking the outline of the arterial image and finally computing the relative amount of roughness or irregularity in the vessel wall. The image processing system and method are described.

  11. Computer Ownership and Grades.

    ERIC Educational Resources Information Center

    Brown, Robert M.; And Others

    1989-01-01

    Describes study that investigated the impact of computer ownership and lab attendance on College of Business students' performance on an examination and in an introductory course on information systems. Results indicated that both owning a computer and attending lab sessions were associated with a student earning a better course grade. (10…

  12. Computer Virus Protection

    ERIC Educational Resources Information Center

    Rajala, Judith B.

    2004-01-01

    A computer virus is a program--a piece of executable code--that has the unique ability to replicate. Like biological viruses, computer viruses can spread quickly and are often difficult to eradicate. They can attach themselves to just about any type of file, and are spread by replicating and being sent from one individual to another. Simply having…

  13. Preventing Computer Glitches

    ERIC Educational Resources Information Center

    Goldsborough, Reid

    2009-01-01

    It has been said that a computer lets a person make more mistakes faster than any other invention in human history, with the possible exceptions of handguns and tequila. Computers also make mistakes on their own, whether they're glitches, conflicts, bugs, crashes, or failures. Avoiding glitches is considerably less frustrating than trying to fix…

  14. Computers and Classroom Culture.

    ERIC Educational Resources Information Center

    Schofield, Janet Ward

    This book explores the meaning of computer technology in schools. The book is based on data gathered from a two-year observation of more than 30 different classrooms in an urban high school: geometry classes in which students used artificially intelligent tutors; business classes in which students learned word processing; and computer science…

  15. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell, Ed.

    1988-01-01

    Describes three situations in which computer software was used in a chemistry laboratory. Discusses interfacing voltage output instruments with Apple II computers and using spreadsheet programs to simulate gas chromatography and analysis of kinetic data. Includes information concerning procedures, hardware, and software used in each situation. (CW)

  16. A Home Computer Primer.

    ERIC Educational Resources Information Center

    Stone, Antonia

    1982-01-01

    Provides general information on currently available microcomputers, computer programs (software), hardware requirements, software sources, costs, computer games, and programing. Includes a list of popular microcomputers, providing price category, model, list price, software (cassette, tape, disk), monitor specifications, amount of random access…

  17. Computer Yearbook 72.

    ERIC Educational Resources Information Center

    1972

    Recent and expected developments in the computer industry are discussed in this 628-page yearbook, successor to "The Punched Card Annual." The first section of the report is an overview of current computer hardware and software and includes articles about future applications of mainframes, an analysis of the software industry, and a summary of the…

  18. Connecting Kids and Computers

    ERIC Educational Resources Information Center

    Giles, Rebecca McMahon

    2006-01-01

    Exposure to cell phones, DVD players, video games, computers, digital cameras, and iPods has made today's young people more technologically advanced than those of any previous generation. As a result, parents are now concerned that their children are spending too much time in front of the computer. In this article, the author focuses her…

  19. Computer Augmented Video Education.

    ERIC Educational Resources Information Center

    Sousa, M. B.

    1979-01-01

    Describes project CAVE (Computer Augmented Video Education), an ongoing effort at the U.S. Naval Academy to present lecture material on videocassette tape, reinforced by drill and practice through an interactive computer system supported by a 12 channel closed circuit television distribution and production facility. (RAO)

  20. Computed Tomography (CT) -- Sinuses

    MedlinePlus

    ... More Info Images/Videos About Us News Physician Resources Professions Site Index A-Z Computed Tomography (CT) - Sinuses Computed tomography (CT) of the sinuses uses special x-ray equipment to evaluate the paranasal sinus cavities – hollow, air-filled spaces within the bones of the face surrounding the ...

  1. COMPUTER MODELS/EPANET

    EPA Science Inventory

    Pipe network flow analysis was among the first civil engineering applications programmed for solution on the early commercial mainframe computers in the 1960s. Since that time, advancements in analytical techniques and computing power have enabled us to solve systems with tens o...

  2. Computer Graphics Verification

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Video processing creates technical animation sequences using studio quality equipment to realistically represent fluid flow over space shuttle surfaces, helicopter rotors, and turbine blades.Computer systems Co-op, Tim Weatherford, performing computer graphics verification. Part of Co-op brochure.

  3. COMPUTER MODELS/EPANET

    EPA Science Inventory

    Pipe network flow analysis was among the first civil engineering applications programmed for solution on the early commercial mainframe computers in the 1960s. Since that time, advancements in analytical techniques and computing power have enabled us to solve systems with tens o...

  4. Computer Produced Media Guides.

    ERIC Educational Resources Information Center

    Jeffcott, Janet B.

    To increase access to the media collection at the Madison Area Technical College (Wisconsin) a computer-produced key work index was created using an International Business Machine (IBM) 360 model 40 computer and a duplicating facility with offset capability. A standard 80 column IBM card was used reserving columns 1-9 for the media item number,…

  5. Advances in computers

    SciTech Connect

    Yovits, M.C. )

    1989-01-01

    This book presents major new developments in the field of computer science. Topics covered are: The Structure of Design Processes; Fuzzy Sets and their Applications to Artificial Intelligence; Parallel Architectures for Database Systems; Optical and Optoelectronic Computing; and Management Intelligence Systems.

  6. Chemistry by Computer.

    ERIC Educational Resources Information Center

    Garmon, Linda

    1981-01-01

    Describes the features of various computer chemistry programs. Utilization of computer graphics, color, digital imaging, and other innovations are discussed in programs including those which aid in the identification of unknowns, predict whether chemical reactions are feasible, and predict the biological activity of xenobiotic compounds. (CS)

  7. Computer-assisted Crystallization.

    ERIC Educational Resources Information Center

    Semeister, Joseph J., Jr.; Dowden, Edward

    1989-01-01

    To avoid a tedious task for recording temperature, a computer was used for calculating the heat of crystallization for the compound sodium thiosulfate. Described are the computer-interfacing procedures. Provides pictures of laboratory equipment and typical graphs from experiments. (YP)

  8. Student Computer Use.

    ERIC Educational Resources Information Center

    Education Statistics Quarterly, 1999

    1999-01-01

    Presents rates of student computer use by grade level, frequency of use, reason for use, and family income. In 1996, 79% of 4th graders, 91% of 8th graders, and 96% of 11th graders were using a computer at home or at school to write stories and papers. (Author/SLD)

  9. A Home Computer Primer.

    ERIC Educational Resources Information Center

    Stone, Antonia

    1982-01-01

    Provides general information on currently available microcomputers, computer programs (software), hardware requirements, software sources, costs, computer games, and programing. Includes a list of popular microcomputers, providing price category, model, list price, software (cassette, tape, disk), monitor specifications, amount of random access…

  10. Chemistry by Computer.

    ERIC Educational Resources Information Center

    Garmon, Linda

    1981-01-01

    Describes the features of various computer chemistry programs. Utilization of computer graphics, color, digital imaging, and other innovations are discussed in programs including those which aid in the identification of unknowns, predict whether chemical reactions are feasible, and predict the biological activity of xenobiotic compounds. (CS)

  11. Computers as Cognitive Tools.

    ERIC Educational Resources Information Center

    Lajoie, Susanne P., Ed.; Derry, Sharon J., Ed.

    This book provides exemplars of the types of computer-based learning environments represented by the theoretical camps within the field and the practical applications of the theories. The contributors discuss a variety of computer applications to learning, ranging from school-related topics such as geometry, algebra, biology, history, physics, and…

  12. Computer Networking for Educators.

    ERIC Educational Resources Information Center

    McCain, Ted D. E.; Ekelund, Mark

    This book is intended to introduce the basic concepts of connecting computers together and to equip individuals with the technical background necessary to begin constructing small networks. For those already experienced with creating and maintaining computer networks, the book can help in considering the creation of a schoolwide network. The book…

  13. Computer Series, 112.

    ERIC Educational Resources Information Center

    Birk, James P., Ed.

    1990-01-01

    Four microcomputer applications are presented including: "Computer Simulated Process of 'Lead Optimization': A Student-Interactive Program,""A PROLOG Program for the Generation of Molecular Formulas,""Determination of Inflection Points from Experimental Data," and "LAOCOON PC: NMR Simulation on a Personal Computer." Software, availability,…

  14. Computers on Wheels.

    ERIC Educational Resources Information Center

    Rosemead Elementary School District, CA.

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: How does a school provide the computer learning experiences for students given the paucity of available funding for hardware, software, and staffing? Here is what one school, Emma W. Shuey in Rosemead, did after exploratory research on computers by a committee of teachers and administrators. The…

  15. Computer Anxiety and Instruction.

    ERIC Educational Resources Information Center

    Baumgarte, Roger

    While the computer is commonly viewed as a tool for simplifying and enriching lives, many individuals react to this technology with feelings of anxiety, paranoia, and alienation. These reactions may have potentially serious career and educational consequences. Fear of computers reflects a generalized fear of current technology and is most…

  16. Computer Aided Art Major.

    ERIC Educational Resources Information Center

    Gibson, Jim

    The Computer Aided Art program offered at Northern State State University (Aberdeen, South Dakota), is coordinated with the traditional art major. The program is designed to familiarize students with a wide range of art-related computer hardware and software and their applications and to prepare students for problem-solving with unfamiliar…

  17. Nasal computed tomography.

    PubMed

    Kuehn, Ned F

    2006-05-01

    Chronic nasal disease is often a challenge to diagnose. Computed tomography greatly enhances the ability to diagnose chronic nasal disease in dogs and cats. Nasal computed tomography provides detailed information regarding the extent of disease, accurate discrimination of neoplastic versus nonneoplastic diseases, and identification of areas of the nose to examine rhinoscopically and suspicious regions to target for biopsy.

  18. Scheduling THE Computer.

    ERIC Educational Resources Information Center

    McKay, Martin D.

    1998-01-01

    Focuses on how to schedule the use of a single computer so that all students are represented and given equal access. Suggests that a computer management team be selected from within the class; discusses the teacher's role and student role definition and responsibility assignments. (AEF)

  19. Advances in Computational Astrophysics

    SciTech Connect

    Calder, Alan C.; Kouzes, Richard T.

    2009-03-01

    I was invited to be the guest editor for a special issue of Computing in Science and Engineering along with a colleague from Stony Brook. This is the guest editors' introduction to a special issue of Computing in Science and Engineering. Alan and I have written this introduction and have been the editors for the 4 papers to be published in this special edition.

  20. Selecting Personal Computers.

    ERIC Educational Resources Information Center

    Djang, Philipp A.

    1993-01-01

    Describes a Multiple Criteria Decision Analysis Approach for the selection of personal computers that combines the capabilities of Analytic Hierarchy Process and Integer Goal Programing. An example of how decision makers can use this approach to determine what kind of personal computers and how many of each type to purchase is given. (nine…

  1. The Computer Bulletin Board.

    ERIC Educational Resources Information Center

    Batt, Russell H., Ed.

    1989-01-01

    Discussed are some uses of computers in chemistry classrooms. Described are: (1) interactive chromatographic analysis software; (2) computer interface for a digital frequency-period-counter-ratio meter and analog interface based on a voltage-to-frequency converter; and (3) use of spectrometer/microcomputer arrangement for teaching atomic theory.…

  2. Indirection and computer security.

    SciTech Connect

    Berg, Michael J.

    2011-09-01

    The discipline of computer science is built on indirection. David Wheeler famously said, 'All problems in computer science can be solved by another layer of indirection. But that usually will create another problem'. We propose that every computer security vulnerability is yet another problem created by the indirections in system designs and that focusing on the indirections involved is a better way to design, evaluate, and compare security solutions. We are not proposing that indirection be avoided when solving problems, but that understanding the relationships between indirections and vulnerabilities is key to securing computer systems. Using this perspective, we analyze common vulnerabilities that plague our computer systems, consider the effectiveness of currently available security solutions, and propose several new security solutions.

  3. Onward to Petaflops Computing

    NASA Technical Reports Server (NTRS)

    Bailey, David H.; Chancellor, Marisa K. (Technical Monitor)

    1997-01-01

    With programs such as the US High Performance Computing and Communications Program (HPCCP), the attention of scientists and engineers worldwide has been focused on the potential of very high performance scientific computing, namely systems that are hundreds or thousands of times more powerful than those typically available in desktop systems at any given point in time. Extending the frontiers of computing in this manner has resulted in remarkable advances, both in computing technology itself and also in the various scientific and engineering disciplines that utilize these systems. Within the month or two, a sustained rate of 1 Tflop/s (also written 1 teraflops, or 10(exp 12) floating-point operations per second) is likely to be achieved by the 'ASCI Red' system at Sandia National Laboratory in New Mexico. With this objective in sight, it is reasonable to ask what lies ahead for high-end computing.

  4. (Computer) Vision without Sight

    PubMed Central

    Manduchi, Roberto; Coughlan, James

    2012-01-01

    Computer vision holds great promise for helping persons with blindness or visual impairments (VI) to interpret and explore the visual world. To this end, it is worthwhile to assess the situation critically by understanding the actual needs of the VI population and which of these needs might be addressed by computer vision. This article reviews the types of assistive technology application areas that have already been developed for VI, and the possible roles that computer vision can play in facilitating these applications. We discuss how appropriate user interfaces are designed to translate the output of computer vision algorithms into information that the user can quickly and safely act upon, and how system-level characteristics affect the overall usability of an assistive technology. Finally, we conclude by highlighting a few novel and intriguing areas of application of computer vision to assistive technology. PMID:22815563

  5. Adiabatic topological quantum computing

    DOE PAGES

    Cesare, Chris; Landahl, Andrew J.; Bacon, Dave; ...

    2015-07-31

    Topological quantum computing promises error-resistant quantum computation without active error correction. However, there is a worry that during the process of executing quantum gates by braiding anyons around each other, extra anyonic excitations will be created that will disorder the encoded quantum information. Here, we explore this question in detail by studying adiabatic code deformations on Hamiltonians based on topological codes, notably Kitaev’s surface codes and the more recently discovered color codes. We develop protocols that enable universal quantum computing by adiabatic evolution in a way that keeps the energy gap of the system constant with respect to the computationmore » size and introduces only simple local Hamiltonian interactions. This allows one to perform holonomic quantum computing with these topological quantum computing systems. The tools we develop allow one to go beyond numerical simulations and understand these processes analytically.« less

  6. Computational model for interfaces

    NASA Astrophysics Data System (ADS)

    Glimm, J.; McBryan, O. A.

    1985-06-01

    Decompositions of the plane into disjoint components separated by curves occur frequently. We describe a package of subroutines which provides facilities for defining, building and modifying such decompositions and for efficiently solving various point and area location problems. Beyond the point that the specification of this package may be useful to others, we reach the broader conclusion that well designed data structures and support routines allow the use of more conceptual or nonnumerical portions of mathematics in the computational process, thereby extending greatly the potential scope of the use of computers in scientific problem solving. Ideas from conceptual mathematics, symbolic computation and computer science can be utilized within the framework of scientific computing and have an important role to play in that area.

  7. Orbits: Computer simulation

    NASA Technical Reports Server (NTRS)

    Muszynska, A.

    1985-01-01

    In rotating machinery dynamics an orbit (Lissajous curve) represents the dynamic path of the shaft centerline motion during shaft rotation and resulting precession. The orbit can be observed with an oscilloscope connected to XY promixity probes. The orbits can also be simulated by a computer. The software for HP computer simulates orbits for two cases: (1) Symmetric orbit with four frequency components with different radial amplitudes and relative phase angles; and (2) Nonsymmetric orbit with two frequency components with two different vertical/horizontal amplitudes and two different relative phase angles. Each orbit carries a Keyphasor mark (one-per-turn reference). The frequencies, amplitudes, and phase angles, as well as number of time steps for orbit computation, have to be chosen and introduced to the computer by the user. The orbit graphs can be observed on the computer screen.

  8. Computers and neurosurgery.

    PubMed

    Shaikhouni, Ammar; Elder, J Bradley

    2012-11-01

    At the turn of the twentieth century, the only computational device used in neurosurgical procedures was the brain of the surgeon. Today, most neurosurgical procedures rely at least in part on the use of a computer to help perform surgeries accurately and safely. The techniques that revolutionized neurosurgery were mostly developed after the 1950s. Just before that era, the transistor was invented in the late 1940s, and the integrated circuit was invented in the late 1950s. During this time, the first automated, programmable computational machines were introduced. The rapid progress in the field of neurosurgery not only occurred hand in hand with the development of modern computers, but one also can state that modern neurosurgery would not exist without computers. The focus of this article is the impact modern computers have had on the practice of neurosurgery. Neuroimaging, neuronavigation, and neuromodulation are examples of tools in the armamentarium of the modern neurosurgeon that owe each step in their evolution to progress made in computer technology. Advances in computer technology central to innovations in these fields are highlighted, with particular attention to neuroimaging. Developments over the last 10 years in areas of sensors and robotics that promise to transform the practice of neurosurgery further are discussed. Potential impacts of advances in computers related to neurosurgery in developing countries and underserved regions are also discussed. As this article illustrates, the computer, with its underlying and related technologies, is central to advances in neurosurgery over the last half century. Copyright © 2012 Elsevier Inc. All rights reserved.

  9. Automated support requirement system user's guide for nondata entry personnel

    NASA Technical Reports Server (NTRS)

    Maryland, J. E., Jr.

    1985-01-01

    ASRS provides the capability to process intercenter/agency support requirements and commitments necessary for support of the Space Shuttle Launch and Landing, Flight, and Cargo operations. The instructions and commands that users will be allowed to utilize are presented. ASRS utilizes a data base stored on Honeywell DPS8 computer. ASRS programs are written in COBOL 74 utilizing the Honeywell DMIV-TP Processing System and the GCOS8 Operating System; they can also be accessed through Telenet or Datanet.

  10. Pen-based computers: Computers without keys

    NASA Technical Reports Server (NTRS)

    Conklin, Cheryl L.

    1994-01-01

    The National Space Transportation System (NSTS) is comprised of many diverse and highly complex systems incorporating the latest technologies. Data collection associated with ground processing of the various Space Shuttle system elements is extremely challenging due to the many separate processing locations where data is generated. This presents a significant problem when the timely collection, transfer, collation, and storage of data is required. This paper describes how new technology, referred to as Pen-Based computers, is being used to transform the data collection process at Kennedy Space Center (KSC). Pen-Based computers have streamlined procedures, increased data accuracy, and now provide more complete information than previous methods. The end results is the elimination of Shuttle processing delays associated with data deficiencies.

  11. Computational electromagnetics and parallel dense matrix computations

    SciTech Connect

    Forsman, K.; Kettunen, L.; Gropp, W.; Levine, D.

    1995-06-01

    We present computational results using CORAL, a parallel, three-dimensional, nonlinear magnetostatic code based on a volume integral equation formulation. A key feature of CORAL is the ability to solve, in parallel, the large, dense systems of linear equations that are inherent in the use of integral equation methods. Using the Chameleon and PSLES libraries ensures portability and access to the latest linear algebra solution technology.

  12. Computing Algebraic Immunity by Reconfigurable Computer

    DTIC Science & Technology

    2012-09-01

    the linear system, then the amount of computation required is O (( n d )ω) , where ω is the well–known “exponent of Gaussian reduction” (ω = 3 ( Gauss ...x2, x3) = x1x2 ⊕ x1x3 ⊕ x2x3. The top half of Table 2 shows the minterm canonical form of f̄ . Here, the first (leftmost) column represents all

  13. Computational electromagnetics and parallel dense matrix computations

    SciTech Connect

    Forsman, K.; Kettunen, L.; Gropp, W.

    1995-12-01

    We present computational results using CORAL, a parallel, three-dimensional, nonlinear magnetostatic code based on a volume integral equation formulation. A key feature of CORAL is the ability to solve, in parallel, the large, dense systems of linear equations that are inherent in the use of integral equation methods. Using the Chameleon and PSLES libraries ensures portability and access to the latest linear algebra solution technology.

  14. Control technology for integrated circuit fabrication at Honeywell Optoelectronics Division, Richardson, Texas

    NASA Astrophysics Data System (ADS)

    Smith, R. K.; Ungers, L. J.

    1984-07-01

    A walk through survey of the integrated circuit fabrication operation revealed that engineering controls consisted of general and local ventilation, and isolation enclosure of the epitaxy and gas cylinder storage areas. The gas storage room was maintained at a slight negative pressure and gas monitoring was conducted. Liquid wastes were segregated according to type. Acidic wastes were pumped to a drain that carried them to a waste treatment system where they were neutralized with sodium hydroxide. Organic wastes were placed in containers which were taken to an outdoor area behind the facility where they were emptied into drums for disposal. The facility had no routine industrial hygiene program. Smocks, gloves, and safety glasses were required in all fabrication areas. Respirators were available in case of emergency. Preplacement medical examinations were not administered. Quarterly urinalyses for arsenic (7440382) exposure were conducted on all employees performing sawing operations.

  15. Honeywell Engines, Systems and Services, Phoenix, Arizona, Petition to Object to Title V Operating Permit

    EPA Pesticide Factsheets

    This document may be of assistance in applying the Title V air operating permit regulations. This document is part of the Title V Petition Database available at www2.epa.gov/title-v-operating-permits/title-v-petition-database. Some documents in the database are a scanned or retyped version of a paper photocopy of the original. Although we have taken considerable effort to quality assure the documents, some may contain typographical errors. Contact the office that issued the document if you need a copy of the original.

  16. George M. Low Trophy: NASA's quality and excellence award. 1992 recipients: Honeywell Clearwater, IBM Houston

    NASA Technical Reports Server (NTRS)

    1992-01-01

    The George M. Low Trophy is awarded to current NASA contractors, subcontractors, and suppliers in the aerospace industry who have demonstrated sustained excellence and outstanding achievements in quality and productivity for three or more years. The objectives of the award are to increase public awareness of the importance of quality and productivity to the Nation's aerospace program and industry in general; encourage domestic business to continue efforts to enhance quality, increase productivity, and thereby strengthen competitiveness; and provide the means for sharing the successful methods and techniques used by the applicants with other American enterprises. Information is given on candidate eligibility for large businesses, the selection process, the nomination letter, and the application report. The 1992 highlights and recipients are included.

  17. 75 FR 12663 - Airworthiness Directives; Honeywell International Inc. TFE731 Series Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-17

    ... found during a fluorescent penetrant inspection (FPI) of the disc bore. We are issuing this AD to... the bore, which could result in damage to the airplane. DATES: This AD becomes effective April 21..., Washington, DC 20590- 0001. FOR FURTHER INFORMATION CONTACT: Joseph Costa, Aerospace Engineer, Los...

  18. 75 FR 15331 - Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... operators. To account for various inflationary costs in the airline industry, we find it necessary to... from within touching distance unless otherwise specified. A mirror may be necessary to enhance visual...

  19. 77 FR 42419 - Airworthiness Directives; Honeywell International, Inc. Global Navigation Satellite Sensor Units

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    ... International, Inc. Global Navigation Satellite Sensor Units AGENCY: Federal Aviation Administration (FAA), DOT... augmentation system (WAAS) global navigation satellite sensor units (GNSSU). This AD requires you cease all... positioning system (GPS) sensor and the same software as the Model KGS200 Mercury\\2\\ GNSSU. A software...

  20. 77 FR 40637 - Honeywell International, Scanning and Mobility Division, Formerly Known as Hand Held Products...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... Known as Hand Held Products, Inc., Including On-Site Leased Workers From Manpower, Skaneatelles Falls... workers from Manpower, Skaneateles Falls, New York. The Department's notice of determination was published...., including on-site leased workers from Manpower, Skaneateles Falls, New York, separated from employment on or...

  1. Performance Evaluation of the Honeywell GG1308 Miniature Ring Laser Gyroscope

    DTIC Science & Technology

    1993-01-01

    mounted one path length control (PLC) transducer mirror , a readout wedge mirror and a curved mirror . In addition, there are three electrodes (two...operated on the 0.6328 gm transitiun of Neon. After cold-weld pinchoff of the fill tube electrode, a PLC driver is bonded to the transducer mirror , a...PLC sensor is attached to the curved mirror and a readout sensor is attached to the readout wedge mirror . A microcircuit temperature sensor, a start

  2. 76 FR 61255 - Airworthiness Directives; Honeywell International Inc. TPE331 Model Turboprop Engines With...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-04

    ... International Inc. TPE331 Model Turboprop Engines With Certain Dixie Aerospace, LLC Main Shaft Bearings AGENCY... model turboprop engines with a part manufacturer approval (PMA) replacement Dixie Aerospace, LLC main... Federal Register, but was sent to all known U.S. owners and operators of these engines. That AD currently...

  3. 76 FR 81986 - Honeywell International, Inc., Automation and Control Solutions Division, Including On-Site...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... Division, Including On-Site Leased Workers From Manpower, Spherion, Securitas and ABM Janitorial Services... leased from ABM Janitorial Services North Central, Inc. was employed on-site at the Rock Island, Illinois... Department is amending this certification to include workers leased from ABM Janitorial Services...

  4. 75 FR 22519 - Airworthiness Directives; Honeywell International Inc., Primus EPIC and Primus APEX Flight...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-29

    ... its scheduled flight path, and result in possible collision with other aircraft or terrain. DATES... transport airplanes: Chip Adam, Flight Test Pilot, Flight Test Branch, ANM-160L, FAA, Los Angeles Aircraft... during flight. Because of our requirement to promote safe flight of civil aircraft and thus the...

  5. Solar-energy-system performance evaluation: Honeywell OTS 44, Ocmulgee, Georgia

    NASA Astrophysics Data System (ADS)

    Mathur, A. K.; Pederson, S.

    1982-08-01

    The operation and technical performance of the solar operational test site (OTS 44) are described, based on data collected between April, 1981 and August, 1981. The following topics are discussed: system description, performance assessment, operating energy, energy savings, system maintenance, and conclusions. The solar energy system at OTS 44 is a hydronic heating and cooling system consisting of 5040 square feet of liquid cooled flat plate collectors; a 4000 gallon thermal storage tank; one 25 ton capacity organic Rankine cycle engine assisted water chillers; a forced draft cooling tower; and associated piping, pumps, valves, controls and heat rejection equipment. The solar system has eight basic modes of operation and several combination modes for providing space conditioning and hot water to the building. Data monitored during the 4 months of the operational test period found that the solar system collected 285 MMBtu of thermal energy of the total incident solar energy of 1040 MMBtu and provided 210 MMBtu for cooling and 10 MMBtu for heating and hot water. The net electrical energy saving due to the solar system was approximately 2600 kWh(e), and fossil energy saving was about 20 million Btu (MMBtu).

  6. Solar-energy-system performance evaluation: Honeywell OTS 44, Ocmulgee, Georgia

    NASA Technical Reports Server (NTRS)

    Mathur, A. K.; Pederson, S.

    1982-01-01

    The operation and technical performance of the solar operational test site (OTS 44) are described, based on data collected between April, 1981 and August, 1981. The following topics are discussed: system description, performance assessment, operating energy, energy savings, system maintenance, and conclusions. The solar energy system at OTS 44 is a hydronic heating and cooling system consisting of 5040 square feet of liquid cooled flat plate collectors; a 4000 gallon thermal storage tank; one 25 ton capacity organic Rankine cycle engine assisted water chillers; a forced draft cooling tower; and associated piping, pumps, valves, controls and heat rejection equipment. The solar system has eight basic modes of operation and several combination modes for providing space conditioning and hot water to the building. Data monitored during the 4 months of the operational test period found that the solar system collected 285 MMBtu of thermal energy of the total incident solar energy of 1040 MMBtu and provided 210 MMBtu for cooling and 10 MMBtu for heating and hot water. The net electrical energy saving due to the solar system was approximately 2600 kWh(e), and fossil energy saving was about 20 million Btu (MMBtu).

  7. George M. Low Trophy: NASA's quality and excellence award. 1992 recipients: Honeywell Clearwater, IBM Houston

    NASA Astrophysics Data System (ADS)

    The George M. Low Trophy is awarded to current NASA contractors, subcontractors, and suppliers in the aerospace industry who have demonstrated sustained excellence and outstanding achievements in quality and productivity for three or more years. The objectives of the award are to increase public awareness of the importance of quality and productivity to the Nation's aerospace program and industry in general; encourage domestic business to continue efforts to enhance quality, increase productivity, and thereby strengthen competitiveness; and provide the means for sharing the successful methods and techniques used by the applicants with other American enterprises. Information is given on candidate eligibility for large businesses, the selection process, the nomination letter, and the application report. The 1992 highlights and recipients are included.

  8. 78 FR 57253 - Airworthiness Directives; Honeywell ASCa Inc. Emergency Locator Transmitters Installed on Various...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... battery wiring installation inside the TU, which could result in an electrical short and possible ignition... ELT TU. Subsequent to the fire event, inspection of in-service ELT TUs revealed battery wiring... an electrical short, the ELT battery could provide the energy for an ignition. This AD is issued as a...

  9. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, HONEYWELL POWER SYSTEMS, INC. PARALLON 75 KW TURBOGENERATOR WITH CO EMISSIONS CONTROL

    EPA Science Inventory

    The Greenhouse Gas Technology Center (GHG Center), one of six verification organizations under the Environmental Technology Verification (ETV) program, evaluated the performance of the Parallon 75 kW Turbogenerator (Turbogenerator) with carbon monoxide (CO) emissions control syst...

  10. 76 FR 20231 - Airworthiness Directives; Honeywell International Inc. LTS101 Series Turboshaft Engines and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-12

    ... turbine blades. We are issuing this AD to prevent fracture of the power turbine blade airfoil, which could... proposed rulemaking (74 FR 67829, December 21, 2009) proposed to require removing power turbine blades... expanding and clarifying the applicability to include more engine models and power turbine blade P/ Ns...

  11. 75 FR 78937 - Airworthiness Directives; Honeywell International LTS101 Series Turboshaft Engines and LTP101...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

    ... turboprop engines with power turbine blades, part number (P/N) 4-141-084-06, installed. That proposed AD would have required removing power turbine blades, P/N 4-141-084-06 from service, using a drawdown... airfoil of the power turbine blade. This action revises the proposed rule by expanding and clarifying...

  12. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, HONEYWELL POWER SYSTEMS, INC. PARALLON 75 KW TURBOGENERATOR WITH CO EMISSIONS CONTROL

    EPA Science Inventory

    The Greenhouse Gas Technology Center (GHG Center), one of six verification organizations under the Environmental Technology Verification (ETV) program, evaluated the performance of the Parallon 75 kW Turbogenerator (Turbogenerator) with carbon monoxide (CO) emissions control syst...

  13. 78 FR 59731 - License Amendment Request for Closure of Calcium Fluoride Ponds at Honeywell Metropolis Works...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-27

    ..., Room O1-F21, One White Flint North, 11555 Rockville Pike, Rockville, Maryland 20852. FOR FURTHER...; hydrology; ecological resources; air quality, meteorology, climatology; noise; historic and...

  14. 75 FR 901 - Airworthiness Directives; Honeywell International Inc. ALF502 Series and LF507 Series Turbofan...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-07

    ...-wing eddy current or in-shop fluorescent penetrant inspections of certain part number (P/N) fuel...-wing eddy current inspections (ECI) or in-shop fluorescent penetrant inspections (FPI) of fuel...

  15. Global computing for bioinformatics.

    PubMed

    Loewe, Laurence

    2002-12-01

    Global computing, the collaboration of idle PCs via the Internet in a SETI@home style, emerges as a new way of massive parallel multiprocessing with potentially enormous CPU power. Its relations to the broader, fast-moving field of Grid computing are discussed without attempting a review of the latter. This review (i) includes a short table of milestones in global computing history, (ii) lists opportunities global computing offers for bioinformatics, (iii) describes the structure of problems well suited for such an approach, (iv) analyses the anatomy of successful projects and (v) points to existing software frameworks. Finally, an evaluation of the various costs shows that global computing indeed has merit, if the problem to be solved is already coded appropriately and a suitable global computing framework can be found. Then, either significant amounts of computing power can be recruited from the general public, or--if employed in an enterprise-wide Intranet for security reasons--idle desktop PCs can substitute for an expensive dedicated cluster.

  16. Community Cloud Computing

    NASA Astrophysics Data System (ADS)

    Marinos, Alexandros; Briscoe, Gerard

    Cloud Computing is rising fast, with its data centres growing at an unprecedented rate. However, this has come with concerns over privacy, efficiency at the expense of resilience, and environmental sustainability, because of the dependence on Cloud vendors such as Google, Amazon and Microsoft. Our response is an alternative model for the Cloud conceptualisation, providing a paradigm for Clouds in the community, utilising networked personal computers for liberation from the centralised vendor model. Community Cloud Computing (C3) offers an alternative architecture, created by combing the Cloud with paradigms from Grid Computing, principles from Digital Ecosystems, and sustainability from Green Computing, while remaining true to the original vision of the Internet. It is more technically challenging than Cloud Computing, having to deal with distributed computing issues, including heterogeneous nodes, varying quality of service, and additional security constraints. However, these are not insurmountable challenges, and with the need to retain control over our digital lives and the potential environmental consequences, it is a challenge we must pursue.

  17. Coping with distributed computing

    SciTech Connect

    Cormell, L.

    1992-09-01

    The rapid increase in the availability of high performance, cost-effective RISC/UNIX workstations has been both a blessing and a curse. The blessing of having extremely powerful computing engines available on the desk top is well-known to many users. The user has tremendous freedom, flexibility, and control of his environment. That freedom can, however, become the curse of distributed computing. The user must become a system manager to some extent, he must worry about backups, maintenance, upgrades, etc. Traditionally these activities have been the responsibility of a central computing group. The central computing group, however, may find that it can no longer provide all of the traditional services. With the plethora of workstations now found on so many desktops throughout the entire campus or lab, the central computing group may be swamped by support requests. This talk will address several of these computer support and management issues by providing some examples of the approaches taken at various HEP institutions. In addition, a brief review of commercial directions or products for distributed computing and management will be given.

  18. Computing with synthetic protocells.

    PubMed

    Courbet, Alexis; Molina, Franck; Amar, Patrick

    2015-09-01

    In this article we present a new kind of computing device that uses biochemical reactions networks as building blocks to implement logic gates. The architecture of a computing machine relies on these generic and composable building blocks, computation units, that can be used in multiple instances to perform complex boolean functions. Standard logical operations are implemented by biochemical networks, encapsulated and insulated within synthetic vesicles called protocells. These protocells are capable of exchanging energy and information with each other through transmembrane electron transfer. In the paradigm of computation we propose, protoputing, a machine can solve only one problem and therefore has to be built specifically. Thus, the programming phase in the standard computing paradigm is represented in our approach by the set of assembly instructions (specific attachments) that directs the wiring of the protocells that constitute the machine itself. To demonstrate the computing power of protocellular machines, we apply it to solve a NP-complete problem, known to be very demanding in computing power, the 3-SAT problem. We show how to program the assembly of a machine that can verify the satisfiability of a given boolean formula. Then we show how to use the massive parallelism of these machines to verify in less than 20 min all the valuations of the input variables and output a fluorescent signal when the formula is satisfiable or no signal at all otherwise.

  19. Computers as tools

    SciTech Connect

    Eriksson, I.V.

    1994-12-31

    The following message was recently posted on a bulletin board and clearly shows the relevance of the conference theme: {open_quotes}The computer and digital networks seem poised to change whole regions of human activity -- how we record knowledge, communicate, learn, work, understand ourselves and the world. What`s the best framework for understanding this digitalization, or virtualization, of seemingly everything? ... Clearly, symbolic tools like the alphabet, book, and mechanical clock have changed some of our most fundamental notions -- self, identity, mind, nature, time, space. Can we say what the computer, a purely symbolic {open_quotes}machine,{close_quotes} is doing to our thinking in these areas? Or is it too early to say, given how much more powerful and less expensive the technology seems destinated to become in the next few decades?{close_quotes} (Verity, 1994) Computers certainly affect our lives and way of thinking but what have computers to do with ethics? A narrow approach would be that on the one hand people can and do abuse computer systems and on the other hand people can be abused by them. Weli known examples of the former are computer comes such as the theft of money, services and information. The latter can be exemplified by violation of privacy, health hazards and computer monitoring. Broadening the concept from computers to information systems (ISs) and information technology (IT) gives a wider perspective. Computers are just the hardware part of information systems which also include software, people and data. Information technology is the concept preferred today. It extends to communication, which is an essential part of information processing. Now let us repeat the question: What has IT to do with ethics? Verity mentioned changes in {open_quotes}how we record knowledge, communicate, learn, work, understand ourselves and the world{close_quotes}.

  20. Computer surety: computer system inspection guidance. [Contains glossary

    SciTech Connect

    Not Available

    1981-07-01

    This document discusses computer surety in NRC-licensed nuclear facilities from the perspective of physical protection inspectors. It gives background information and a glossary of computer terms, along with threats and computer vulnerabilities, methods used to harden computer elements, and computer audit controls.

  1. The Changes in Computer Anxiety in a Required Computer Course.

    ERIC Educational Resources Information Center

    Kolehmainen, Paivi

    The purpose of the study is to investigate the changes in computer anxiety, attitudes towards computers, and feelings related to computers among students due to participation in the basic course of computer science. The theoretical background is based on theories of human-computer interaction, test anxiety, and resistance to change. The subjects…

  2. Impact of Classroom Computer Use on Computer Anxiety.

    ERIC Educational Resources Information Center

    Lambert, Matthew E.; And Others

    Increasing use of computer programs for undergraduate psychology education has raised concern over the impact of computer anxiety on educational performance. Additionally, some researchers have indicated that classroom computer use can exacerbate pre-existing computer anxiety. To evaluate the relationship between in-class computer use and computer…

  3. Neural computation and the computational theory of cognition.

    PubMed

    Piccinini, Gualtiero; Bahar, Sonya

    2013-04-01

    We begin by distinguishing computationalism from a number of other theses that are sometimes conflated with it. We also distinguish between several important kinds of computation: computation in a generic sense, digital computation, and analog computation. Then, we defend a weak version of computationalism-neural processes are computations in the generic sense. After that, we reject on empirical grounds the common assimilation of neural computation to either analog or digital computation, concluding that neural computation is sui generis. Analog computation requires continuous signals; digital computation requires strings of digits. But current neuroscientific evidence indicates that typical neural signals, such as spike trains, are graded like continuous signals but are constituted by discrete functional elements (spikes); thus, typical neural signals are neither continuous signals nor strings of digits. It follows that neural computation is sui generis. Finally, we highlight three important consequences of a proper understanding of neural computation for the theory of cognition. First, understanding neural computation requires a specially designed mathematical theory (or theories) rather than the mathematical theories of analog or digital computation. Second, several popular views about neural computation turn out to be incorrect. Third, computational theories of cognition that rely on non-neural notions of computation ought to be replaced or reinterpreted in terms of neural computation.

  4. Convergence: Computing and communications

    SciTech Connect

    Catlett, C.

    1996-12-31

    This paper highlights the operations of the National Center for Supercomputing Applications (NCSA). NCSA is developing and implementing a national strategy to create, use, and transfer advanced computing and communication tools and information technologies for science, engineering, education, and business. The primary focus of the presentation is historical and expected growth in the computing capacity, personal computer performance, and Internet and WorldWide Web sites. Data are presented to show changes over the past 10 to 20 years in these areas. 5 figs., 4 tabs.

  5. Human Computer Interaction

    NASA Astrophysics Data System (ADS)

    Bhagwani, Akhilesh; Sengar, Chitransh; Talwaniper, Jyotsna; Sharma, Shaan

    2012-08-01

    The paper basically deals with the study of HCI (Human computer interaction) or BCI(Brain-Computer-Interfaces) Technology that can be used for capturing brain signals and translating them into commands that allow humans to control (just by thinking) devices such as computers, robots, rehabilitation technology and virtual reality environments. The HCI is based as a direct communication pathway between the brain and an external device. BCIs are often aimed at assisting, augmenting, or repairing human cognitive or sensory-motor functions.The paper also deals with many advantages of BCI Technology along with some of its applications and some major drawbacks.

  6. Research in Computational Astrobiology

    NASA Technical Reports Server (NTRS)

    Chaban, Galina; Colombano, Silvano; Scargle, Jeff; New, Michael H.; Pohorille, Andrew; Wilson, Michael A.

    2003-01-01

    We report on several projects in the field of computational astrobiology, which is devoted to advancing our understanding of the origin, evolution and distribution of life in the Universe using theoretical and computational tools. Research projects included modifying existing computer simulation codes to use efficient, multiple time step algorithms, statistical methods for analysis of astrophysical data via optimal partitioning methods, electronic structure calculations on water-nuclei acid complexes, incorporation of structural information into genomic sequence analysis methods and calculations of shock-induced formation of polycylic aromatic hydrocarbon compounds.

  7. Harnessing vision for computation.

    PubMed

    Changizi, Mark

    2008-01-01

    Might it be possible to harness the visual system to carry out artificial computations, somewhat akin to how DNA has been harnessed to carry out computation? I provide the beginnings of a research programme attempting to do this. In particular, new techniques are described for building 'visual circuits' (or 'visual software') using wire, NOT, OR, and AND gates in a visual 6modality such that our visual system acts as 'visual hardware' computing the circuit, and generating a resultant perception which is the output.

  8. NEMAR plotting computer program

    NASA Technical Reports Server (NTRS)

    Myler, T. R.

    1981-01-01

    A FORTRAN coded computer program which generates CalComp plots of trajectory parameters is examined. The trajectory parameters are calculated and placed on a data file by the Near Earth Mission Analysis Routine computer program. The plot program accesses the data file and generates the plots as defined by inputs to the plot program. Program theory, user instructions, output definitions, subroutine descriptions and detailed FORTRAN coding information are included. Although this plot program utilizes a random access data file, a data file of the same type and formatted in 102 numbers per record could be generated by any computer program and used by this plot program.

  9. Computer aided surface representation

    SciTech Connect

    Barnhill, R.E.

    1990-02-19

    The central research problem of this project is the effective representation, computation, and display of surfaces interpolating to information in three or more dimensions. If the given information is located on another surface, then the problem is to construct a surface defined on a surface''. Sometimes properties of an already defined surface are desired, which is geometry processing''. Visualization of multivariate surfaces is possible by means of contouring higher dimensional surfaces. These problems and more are discussed below. The broad sweep from constructive mathematics through computational algorithms to computer graphics illustrations is utilized in this research. The breadth and depth of this research activity makes this research project unique.

  10. Advanced Computer Typography.

    DTIC Science & Technology

    1981-12-01

    ADVANCED COMPUTER TYPOGRAPHY .(U) DEC 81 A V HERSHEY UNCLASSIFIED NPS012-81-005 M MEEEIEEEII IIUJIL15I.4 MICROCQP RE SO.JjI ON ft R NPS012-81-005...NAVAL POSTGRADUATE SCHOOL 0Monterey, California DTIC SELECTEWA APR 5 1982 B ADVANCED COMPUTER TYPOGRAPHY by A. V. HERSHEY December 1981 OApproved for...Subtitle) S. TYPE Or REPORT & PERIOD COVERED Final ADVANCED COMPUTER TYPOGRAPHY Dec 1979 - Dec 1981 S. PERFORMING ORG. REPORT NUMBER 7. AUTHOR(s) S CONTRACT

  11. Computational Science and Innovation

    SciTech Connect

    Dean, David Jarvis

    2011-01-01

    Simulations - utilizing computers to solve complicated science and engineering problems - are a key ingredient of modern science. The U.S. Department of Energy (DOE) is a world leader in the development of high-performance computing (HPC), the development of applied math and algorithms that utilize the full potential of HPC platforms, and the application of computing to science and engineering problems. An interesting general question is whether the DOE can strategically utilize its capability in simulations to advance innovation more broadly. In this article, I will argue that this is certainly possible.

  12. Dynamics of Computing Structures

    NASA Astrophysics Data System (ADS)

    Huberman, B. A.

    1985-01-01

    Complex systems, such as biological organisms and computing structures, lie between the realms of statistical mechanics and the physics of a few degrees of freedom. Moreover, they can exhibit self-organized behavior which in many cases is characterized by learning, recognition and fault tolerance. This talk will describe studies of adaptive parallel computers which are capable of reliable learning and recognition. The existence of attractors in their dynamical behavior leads to a novel self-repairing mechanism which has been tested by quantitative experiments. Moreover, we will show how these highly concurrent structures, which are capable of universal computation, can be used to study simple, fault-tolerant, perceptual tasks.

  13. Teaching Physics with Computers

    NASA Astrophysics Data System (ADS)

    Botet, R.; Trizac, E.

    2005-09-01

    Computers are now so common in our everyday life that it is difficult to imagine the computer-free scientific life of the years before the 1980s. And yet, in spite of an unquestionable rise, the use of computers in the realm of education is still in its infancy. This is not a problem with students: for the new generation, the pre-computer age seems as far in the past as the the age of the dinosaurs. It may instead be more a question of teacher attitude. Traditional education is based on centuries of polished concepts and equations, while computers require us to think differently about our method of teaching, and to revise the content accordingly. Our brains do not work in terms of numbers, but use abstract and visual concepts; hence, communication between computer and man boomed when computers escaped the world of numbers to reach a visual interface. From this time on, computers have generated new knowledge and, more importantly for teaching, new ways to grasp concepts. Therefore, just as real experiments were the starting point for theory, virtual experiments can be used to understand theoretical concepts. But there are important differences. Some of them are fundamental: a virtual experiment may allow for the exploration of length and time scales together with a level of microscopic complexity not directly accessible to conventional experiments. Others are practical: numerical experiments are completely safe, unlike some dangerous but essential laboratory experiments, and are often less expensive. Finally, some numerical approaches are suited only to teaching, as the concept necessary for the physical problem, or its solution, lies beyond the scope of traditional methods. For all these reasons, computers open physics courses to novel concepts, bringing education and research closer. In addition, and this is not a minor point, they respond naturally to the basic pedagogical needs of interactivity, feedback, and individualization of instruction. This is why one can

  14. Computational Tractability - Beyond Turing?

    NASA Astrophysics Data System (ADS)

    Marcer, Peter; Rowlands, Peter

    A fundamental problem in the theory of computing concerns whether descriptions of systems at all times remain tractable, that is whether the complexity that inevitably results can be reduced to a polynomial form (P) or whether some problems lead to a non-polynomial (NP) exponential growth in complexity. Here, we propose that the universal computational rewrite system that can be shown to be responsible ultimately for the development of mathematics, physics, chemistry, biology and even human consciousness, is so structured that Nature will always be structured as P at any scale and so will be computationally tractable.

  15. Computational biology for ageing.

    PubMed

    Wieser, Daniela; Papatheodorou, Irene; Ziehm, Matthias; Thornton, Janet M

    2011-01-12

    High-throughput genomic and proteomic technologies have generated a wealth of publicly available data on ageing. Easy access to these data, and their computational analysis, is of great importance in order to pinpoint the causes and effects of ageing. Here, we provide a description of the existing databases and computational tools on ageing that are available for researchers. We also describe the computational approaches to data interpretation in the field of ageing including gene expression, comparative and pathway analyses, and highlight the challenges for future developments. We review recent biological insights gained from applying bioinformatics methods to analyse and interpret ageing data in different organisms, tissues and conditions.

  16. Computational biology for ageing

    PubMed Central

    Wieser, Daniela; Papatheodorou, Irene; Ziehm, Matthias; Thornton, Janet M.

    2011-01-01

    High-throughput genomic and proteomic technologies have generated a wealth of publicly available data on ageing. Easy access to these data, and their computational analysis, is of great importance in order to pinpoint the causes and effects of ageing. Here, we provide a description of the existing databases and computational tools on ageing that are available for researchers. We also describe the computational approaches to data interpretation in the field of ageing including gene expression, comparative and pathway analyses, and highlight the challenges for future developments. We review recent biological insights gained from applying bioinformatics methods to analyse and interpret ageing data in different organisms, tissues and conditions. PMID:21115530

  17. Computer-Assisted Instruction.

    ERIC Educational Resources Information Center

    Broadbent, Brooke

    1990-01-01

    Provides insight into how computers can be used in union education. States that they will never replace an effective classroom environment where participants' questions are answered by instructors, but can support existing systems. (JOW)

  18. Brain-Computer Symbiosis

    PubMed Central

    Schalk, Gerwin

    2009-01-01

    The theoretical groundwork of the 1930’s and 1940’s and the technical advance of computers in the following decades provided the basis for dramatic increases in human efficiency. While computers continue to evolve, and we can still expect increasing benefits from their use, the interface between humans and computers has begun to present a serious impediment to full realization of the potential payoff. This article is about the theoretical and practical possibility that direct communication between the brain and the computer can be used to overcome this impediment by improving or augmenting conventional forms of human communication. It is about the opportunity that the limitations of our body’s input and output capacities can be overcome using direct interaction with the brain, and it discusses the assumptions, possible limitations, and implications of a technology that I anticipate will be a major source of pervasive changes in the coming decades. PMID:18310804

  19. Resurrecting the computer graveyard

    SciTech Connect

    McAdams, C.L.

    1995-02-01

    What eventually happens to all the old monitors, circuit boards, and other peripherial computer equipment when they die or simply become obsolete Disposal has been made difficult by a US EPA landfill ban on some circuit boards with high lead content, and other computer parts that contain what some call dangerous amounts of toxic substances. With few other options, most companies simply store the obsolete equipment. Often referred to as computer or dinosaur graveyards'', these increasingly numerous office purgatories can seem like permanent fixtures in the modern work-place. Not to worry, according to a new and expanding branch of the recycling industry. While there are some companies cashing in on the refurbishment and resale of these old computers, a growing number are successfully recycling the component parts--selling the plastics, metal, and circuit boards--and doing it safely.

  20. Brain-computer symbiosis.

    PubMed

    Schalk, Gerwin

    2008-03-01

    The theoretical groundwork of the 1930s and 1940s and the technical advance of computers in the following decades provided the basis for dramatic increases in human efficiency. While computers continue to evolve, and we can still expect increasing benefits from their use, the interface between humans and computers has begun to present a serious impediment to full realization of the potential payoff. This paper is about the theoretical and practical possibility that direct communication between the brain and the computer can be used to overcome this impediment by improving or augmenting conventional forms of human communication. It is about the opportunity that the limitations of our body's input and output capacities can be overcome using direct interaction with the brain, and it discusses the assumptions, possible limitations and implications of a technology that I anticipate will be a major source of pervasive changes in the coming decades.