Sample records for whe eler cad

  1. Immersive CAD

    SciTech Connect (OSTI)

    Ames, A.L.

    1999-02-01T23:59:59.000Z

    This paper documents development of a capability for performing shape-changing editing operations on solid model representations in an immersive environment. The capability includes part- and assembly-level operations, with part modeling supporting topology-invariant and topology-changing modifications. A discussion of various design considerations in developing an immersive capability is included, along with discussion of a prototype implementation we have developed and explored. The project investigated approaches to providing both topology-invariant and topology-changing editing. A prototype environment was developed to test the approaches and determine the usefulness of immersive editing. The prototype showed exciting potential in redefining the CAD interface. It is fun to use. Editing is much faster and friendlier than traditional feature-based CAD software. The prototype algorithms did not reliably provide a sufficient frame rate for complex geometries, but has provided the necessary roadmap for development of a production capability.

  2. Impact of CAD on the submittal process

    E-Print Network [OSTI]

    De Lapp, James Andrew

    2005-02-17T23:59:59.000Z

    was selected on the campus of Texas A&M University to investigate the impacts of CAD on the submittal process. The project was selected because it utilized both hand and CAD methods to produce shop drawings. The data collected included all contract documents...

  3. CADS:Cantera Aerosol Dynamics Simulator.

    SciTech Connect (OSTI)

    Moffat, Harry K.

    2007-07-01T23:59:59.000Z

    This manual describes a library for aerosol kinetics and transport, called CADS (Cantera Aerosol Dynamics Simulator), which employs a section-based approach for describing the particle size distributions. CADS is based upon Cantera, a set of C++ libraries and applications that handles gas phase species transport and reactions. The method uses a discontinuous Galerkin formulation to represent the particle distributions within each section and to solve for changes to the aerosol particle distributions due to condensation, coagulation, and nucleation processes. CADS conserves particles, elements, and total enthalpy up to numerical round-off error, in all of its formulations. Both 0-D time dependent and 1-D steady state applications (an opposing-flow flame application) have been developed with CADS, with the initial emphasis on developing fundamental mechanisms for soot formation within fires. This report also describes the 0-D application, TDcads, which models a time-dependent perfectly stirred reactor.

  4. Functional requirements to shape generation in CAD

    E-Print Network [OSTI]

    Chung, Jinpyung, 1967-

    2003-01-01T23:59:59.000Z

    An outstanding issue in computer-aided design (CAD) is the creation of geometric shapes from the description of functional requirements (FRs). This thesis presents a method that can generate assembled shapes from the given ...

  5. A design advisor for future CAD systems

    E-Print Network [OSTI]

    Vijay, Sarathy P.

    1990-01-01T23:59:59.000Z

    Bedford for their help. TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . , II REPRESENTATION FOR DESIGN OBJECTS . . The Design Process What Is CAD and How It Helps in Design? . Representation Issues Growth of CAD and Inadequacy of Current.... This will help designers realize the issues they need to tackle, up front, thus reducing the number of a, ctual iterations in design. There are many other uses for such a tool. For example, most areas of Mechanical Engineering design have a set of established...

  6. Engineering Workshop 3D Modeling Using TinkerCAD

    E-Print Network [OSTI]

    Ohta, Shigemi

    using TinkerCAD · TinkerCad is used for online 3D modeling · Learn how to print the clip on a 3D printer the hole and the clip #12;Congratulations! You made a 3D model! #12;Now To Print It... Our Printers · MakerEngineering Workshop 3D Modeling Using TinkerCAD Sci-Ed Day 2014 Brookhaven National Laboratory

  7. C-AD electron-cooling Photocathode and Laser

    E-Print Network [OSTI]

    C-AD electron-cooling Photocathode and Laser A. Burrill and T. Rao #12;C-AD electron system ­ Design of 2nd and third generation system · Laser system ­ Requirements ­ Commercial ­ Capsule fabrication · Brazing · Metallization #12;C-AD electron-cooling Overview Photocathode Requirements

  8. Distributed & conceptual CAD (DC-CAD) : a new software solution for product design

    E-Print Network [OSTI]

    Egan, Mark D. (Mark Douglas), 1985-

    2007-01-01T23:59:59.000Z

    Many computer aided design (CAD) software packages focus on detailed design and not on early stage, conceptual design. The ability to conceptualize and sketch early versions of a product solution is currently limited to ...

  9. Particle Systems for Adaptive, Isotropic Meshing of CAD Models

    E-Print Network [OSTI]

    Utah, University of

    Particle Systems for Adaptive, Isotropic Meshing of CAD Models Jonathan R. Bronson, Joshua A adaptive triangular surface and tetrahedral volume meshes from CAD models. Input shapes are treated. These particles reach a good distribution by minimizing an energy computed in 3D world space, with movements

  10. CAD-centric Computation Management System for a Virtual TBM

    SciTech Connect (OSTI)

    Ramakanth Munipalli; K.Y. Szema; P.Y. Huang; C.M. Rowell; A.Ying; M. Abdou

    2011-05-03T23:59:59.000Z

    HyPerComp Inc. in research collaboration with TEXCEL has set out to build a Virtual Test Blanket Module (VTBM) computational system to address the need in contemporary fusion research for simulating the integrated behavior of the blanket, divertor and plasma facing components in a fusion environment. Physical phenomena to be considered in a VTBM will include fluid flow, heat transfer, mass transfer, neutronics, structural mechanics and electromagnetics. We seek to integrate well established (third-party) simulation software in various disciplines mentioned above. The integrated modeling process will enable user groups to interoperate using a common modeling platform at various stages of the analysis. Since CAD is at the core of the simulation (as opposed to computational meshes which are different for each problem,) VTBM will have a well developed CAD interface, governing CAD model editing, cleanup, parameter extraction, model deformation (based on simulation,) CAD-based data interpolation. In Phase-I, we built the CAD-hub of the proposed VTBM and demonstrated its use in modeling a liquid breeder blanket module with coupled MHD and structural mechanics using HIMAG and ANSYS. A complete graphical user interface of the VTBM was created, which will form the foundation of any future development. Conservative data interpolation via CAD (as opposed to mesh-based transfer), the regeneration of CAD models based upon computed deflections, are among the other highlights of phase-I activity.

  11. An integrated CAD methodology applied to wind turbine optimization

    E-Print Network [OSTI]

    Crawford, Curran A. (Curran Alexander), 1978-

    2003-01-01T23:59:59.000Z

    Modern engineering practice for designing physical products requires the creation of a CAD model of the design for documentation and manufacturing. As the design evolves from concept through to production, it is analyzed ...

  12. An empirical investigation of AutoCAD user interfaces 

    E-Print Network [OSTI]

    Flores, Patricia Laura

    1992-01-01T23:59:59.000Z

    Chair of Advisory Committee: Dr. Deborah A. Mitts This research examined human performance in a computer aided design scenario. Human performance with respect to two AutoCAD user interfaces (Menu and Template) and three AutoCAD task types (drawing... of the few human-computer interaction (HCI) scenarios for which relatively well-developed measures of human performance are not specified (Cuomo and Sharit, 1989). Previous research efforts have focused on measuring hutnan performance in terms of cognitive...

  13. Performance and value of CAD-deficient pine- Final Report

    SciTech Connect (OSTI)

    Bailian Li; Houmin Chang; Hasan Jameel

    2007-02-28T23:59:59.000Z

    The southern US produces 58% of the nation's timber, much of it grown in intensively managed plantations of genetically improved loblolly pine. One of the fastest-growing loblolly pine selections made by the NCSU-Industry Cooperative Tree Improvement Program, whose progeny are widely planted, is also the only known natural carrier of a rare gene, cadn1. This allele codes for deficiency in an enzyme, cinnamyl alcohol dehydrogenase, which catalyzes the last step in the biosynthesis of lignin precursors. This study is to characterize this candidate gene for marker-assisted selection and deployment in the breeding program. This research will enhance the sustainability of forest production in the South, where land-use pressures will limit the total area available in the future for intensively managed plantations. Furthermore, this research will provide information to establish higher-value plantation forests with more desirable wood/fiber quality traits. A rare mutant allele (cad-n1) of the cad gene in loblolly pine (Pinus taeda L.) causes a deficiency in the production of cinnamyl alcohol dehydrogenase (CAD). The effects of this allele were examined by comparing wood density and growth traits of cad-n1 heterozygous trees with those of wild-type trees in a 10-year-old open-pollinated family trial growing under two levels of fertilization in Scotland County, North Carolina. In all, 200 trees were sampled with 100 trees for each treatment. Wood density measurements were collected from wood cores at breast height using x-ray densitometry. We found that the substitution of cad-n1 for a wild-type allele (Cad) was associated with a significant effect on wood density. The cad-n1 heterozygotes had a significantly higher wood density (+2.6%) compared to wild-type trees. The higher density was apparently due to the higher percentage of latewood in the heterozygotes. The fertilization effect was highly significant for both growth and wood density traits. While no cad genotype x treatment interactions was found for any of the traits studied, in the fertilized plots, the effect of the cad-n1 allele on wood density was reduced. The study indicates that the cad-n1 allele could be a valuable gene to the pulp and paper industry for the purpose of enhancing pulp yields through increasing wood density. Stem growth and wood density associated with a mutant null (cad-n1) allele were examined in three 15-year-old loblolly pine diallel tests, established on two sites in the southern United States. In each diallel test, one or two cad-n1 heterozygous parents were crossed with five unrelated wild-type parents, to produce five or ten full-sib families. In all, 839 trees from 20 full-sib families in four genetic backgrounds (a cad-n1 heterozygote x 5 unrelated trees) were sampled, genotyped at the cad locus, and assessed for growth and wood density traits. In a combined analysis of all four genetic backgrounds, we found evidence for effects of increased wood density associated with the cad-n1 allele at age 15 (p=0.03) years and height growth at ages 6 (p=0.03) and 15 (p=0.005). There were large differences in the cad-n1 effects for the various growth and wood traits among the diallel tests. This variation may be due to either different genetic backgrounds among the parents of the different diallel tests, or for different growing environments at the field sites. Even though the cad-n1 effect on growth and wood density was significant across genetic backgrounds, the effect was variable among full-sib families within backgrounds. We speculate that certain wild-type alleles from second parents specifically interact with cad-n1 producing large positive effects. In addition, pleiotropic effects on growth and wood density appear to be associated with the cad-n1 allele. While substantial gains are possible through deployment of trees carrying cad-n1, these gains may be family-specific and should be verified for each cross through field testing.

  14. Beyond analysis and representation in CAD : a new computational approach to design education

    E-Print Network [OSTI]

    Celani, Maria Gabriela Caffarena

    2002-01-01T23:59:59.000Z

    This thesis aims at changing students' attitude towards the use ofcomputer-aided design (CAD) in architecture. It starts from the premise that CAD is used mostly for analysis and representation, and not as a real design ...

  15. INTEGRATING DATA FROM 3D CAD AND 3D CAMERAS

    E-Print Network [OSTI]

    Bosché, Frédéric

    camera, 3D CAD, data fusion, construction automation 1 PhD Candidate, Department of Civil Engineering in Civil and Building Engineering Page 37 #12;INTRODUCTION Over the last fifty years, the construction2 , Carl T. Haas3 and Carlos H. Caldas4 ABSTRACT In a reversal of historic trends, the capital

  16. CAD OF MICROWAVE OPTICAL SYSTEMS FOR TIME&FREQUENCY APPLICATIONS

    E-Print Network [OSTI]

    Boyer, Edmond

    or their impact on the phase noise. II- SIMULATION OF AN MZ BASED OPTICAL LINK: RF GAIN Microwave circuit designCAD OF MICROWAVE OPTICAL SYSTEMS FOR TIME&FREQUENCY APPLICATIONS Houda Brahimi, LAAS-CNRS, Toulouse are more and more involved in time and frequency applications. They may be used for frequency reference

  17. CAD for Low Power: Status and Promising Directions Massoud Pedram

    E-Print Network [OSTI]

    Pedram, Massoud

    methodolo- gies and tools at the behavioral, logic and circuit levels, and by dynamic power management tools do not calculate the power dissipation due to hazards and short glitches accurately. YetCAD for Low Power: Status and Promising Directions Massoud Pedram University of Southern California

  18. MAE Seminar Series Evolution of CAD to CAx to Product

    E-Print Network [OSTI]

    Krovi, Venkat

    Licursi Siemens PLM Software Abstract The CAD industry has undoubtedly transformed the engineering PLM Software in April, 1999. Since that time he has served as an Engineering Applications Analyst and Technical Team Manager supporting Delphi Automotive Systems. Currently, Rick is a part of the Siemens PLM

  19. ON THE INTERACTION BETWEEN POWER-AWARE FPGA CAD ALGORITHMS

    E-Print Network [OSTI]

    Wilton, Steve

    -power FPGA circuitry, architectures, or CAD tools, we must first determine where the biggest savings (in terms of energy dissipation) are to be made and whether these savings are cumulative. In this paper, we models, we determine the energy savings obtained by our power- aware technology mapping, clustering

  20. Mechanisms of hormonal regulation of CAD gene expression and inhibition by Aryl hydrocarbon receptor agonist in human breast cancer cells 

    E-Print Network [OSTI]

    Khan, Shaheen Munawar Ali

    2007-04-25T23:59:59.000Z

    The CAD gene is trifunctional and expresses carbamoylphosphate synthetase/aspartate carbamyltransferase/dihydroorotase, which are required for pyrimidine biosynthesis. CAD gene activities are induced in MCF-7 human breast ...

  1. CURATION AND PRESERVATION OF CAD ENGINEERING MODELS IN PRODUCT LIFECYCLE MANAGEMENT

    E-Print Network [OSTI]

    Rzepa, Henry S.

    : Curation, Preservation, Engineering, PLM, CAD Models, Multilayer Annotation, Representation Information requirements in Product Lifecycle Management (PLM) and suggest ways of alleviating the problems associated System (OAIS) Reference Model. 1. INTRODUCTION The emergence of Product Lifecycle Management (PLM

  2. Analysing the Effects of Incentives and Model Attributes on CAD Model Creation and Alteration

    E-Print Network [OSTI]

    Diwakaran, Ram Prasad

    2012-02-14T23:59:59.000Z

    on proper modeling procedures. Experts are quicker and adhere to commonly agreed correct modeling procedures during CAD model creation and alteration than students. The results also indicate that it is beneficial for alteration to construct a model...

  3. Model-Based Engineering and Manufacturing CAD/CAM Benchmark.

    SciTech Connect (OSTI)

    Domm, T.C.; Underwood, R.S.

    1999-10-13T23:59:59.000Z

    The Benchmark Project was created from a desire to identify best practices and improve the overall efficiency and performance of the Y-12 Plant's systems and personnel supporting the manufacturing mission. The mission of the benchmark team was to search out industry leaders in manufacturing and evaluate their engineering practices and processes to determine direction and focus for Y-12 modernization efforts. The companies visited included several large established companies and a new, small, high-tech machining firm. As a result of this effort, changes are recommended that will enable Y-12 to become a more modern, responsive, cost-effective manufacturing facility capable of supporting the needs of the Nuclear Weapons Complex (NWC) into the 21st century. The benchmark team identified key areas of interest, both focused and general. The focus areas included Human Resources, Information Management, Manufacturing Software Tools, and Standards/Policies and Practices. Areas of general interest included Infrastructure, Computer Platforms and Networking, and Organizational Structure. The results of this benchmark showed that all companies are moving in the direction of model-based engineering and manufacturing. There was evidence that many companies are trying to grasp how to manage current and legacy data. In terms of engineering design software tools, the companies contacted were somewhere between 3-D solid modeling and surfaced wire-frame models. The manufacturing computer tools were varied, with most companies using more than one software product to generate machining data and none currently performing model-based manufacturing (MBM) from a common model. The majority of companies were closer to identifying or using a single computer-aided design (CAD) system than a single computer-aided manufacturing (CAM) system. The Internet was a technology that all companies were looking to either transport information more easily throughout the corporation or as a conduit for business, as the small firm was doing successfully.

  4. CAD BASED DRILLING USING CONVENTIONAL TWIST DRILLS PANAGIOTIS KYRATSIS*, Dr. Ing. NIKOLAOS BILALIS**, Dr. VASILIS

    E-Print Network [OSTI]

    Aristomenis, Antoniadis

    CAD BASED DRILLING USING CONVENTIONAL TWIST DRILLS PANAGIOTIS KYRATSIS*, Dr. Ing. NIKOLAOS BILALIS, antoniadis@dpem.tuc.gr Abstract: Twist drills are geometrically complex tools, which are used in industry and experimental approaches for drilling simulation. The present paper is based on the ground that the increasing

  5. Designing a Mobile Collaborative System for Navigating and Reviewing Oil Industry CAD Models

    E-Print Network [OSTI]

    Barbosa, Alberto

    Designing a Mobile Collaborative System for Navigating and Reviewing Oil Industry CAD Models navigating and reviewing 3D engineering models, applied to the oil industry. Together with professional oil industry engineers from a large oil company, a team of HCI researchers per- formed task analysis

  6. Submited to Trans. on CAD Revised Version Probabilistic Modeling of Dependencies During Switching Activity Analysis

    E-Print Network [OSTI]

    Pedram, Massoud

    synthesis have become primary concerns for the CAD community. To calculate average power consumption lag-one Markov Chains and conditional probabilities to manage complex spatiotemporal correlations. Two on these notions, it is shown that the relative error in calculating the switching activity of a logic gate using

  7. A Unified CAD-PLM Architecture for Improving Electronics Design Productivity through

    E-Print Network [OSTI]

    California at Los Angeles, University of

    A Unified CAD-PLM Architecture for Improving Electronics Design Productivity through Automation this manufacturing view a broad class of tools known as Product Lifecycle Management (PLM) have evolved to the supply chain (managed through PLM tools) and performance and specification data known to the engineering

  8. Automated Design of Microfluidics-Based Biochips: Connecting Biochemistry to Electronics CAD

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Automated Design of Microfluidics-Based Biochips: Connecting Biochemistry to Electronics CAD, USA Abstract Microfluidics-based biochips offer exciting possibilities for high- throughput sequencing monitoring. The complexity of microfluidic devices is expected to become significant in the near future due

  9. METRIC FOR AUTOMATED DETECTION AND IDENTIFICATION OF 3D CAD ELEMENTS IN 3D SCANNED

    E-Print Network [OSTI]

    Bosché, Frédéric

    of 3D Computer-Aided Design (CAD) engines and more generally of Building Information Models on one side states is critical for performing efficient building and infrastructure construction, maintenance, and management. Three- dimensional (3D) laser scanners have the potential to be successfully applied

  10. CAD AND PRODUCT DEVELOPMENT IN THE US AUTOMOBILE Based on Visits to Chrysler, General Motors, and Ford in the summer

    E-Print Network [OSTI]

    Whitney, Daniel

    07/25/95 1 CAD AND PRODUCT DEVELOPMENT IN THE US AUTOMOBILE INDUSTRY Based on Visits to Chrysler to create concepts and details of automobiles by America's Big 3. Some of the organizational issues

  11. File:08-CA-d - CPCN for Transmission Projects (2).pdf | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d - CPCN for

  12. Automated Design of Microfluidics-Based Biochips: Connecting Biochemistry to Electronics CAD

    E-Print Network [OSTI]

    unknown authors

    Microfluidics-based biochips offer exciting possibilities for highthroughput sequencing, parallel immunoassays, blood chemistry for clinical diagnostics, DNA sequencing, and environmental toxicity monitoring. The complexity of microfluidic devices is expected to become significant in the near future due to the need for multiple and concurrent biochemical assays on multifunctional and reconfigurable platforms. This paper presents early work on topdown system-level computer-aided design (CAD) tools for the synthesis, testing and reconfiguration of microfluidic biochips. Synthesis tools map behavioral descriptions to a droplet-based microfluidic biochip and generate an optimized schedule of assay operations, the binding of assay operations to functional units, and the layout and droplet flow-paths. Cost-effective testing techniques lead to the detection of manufacturing defects and operational faults. Reconfiguration techniques, incorporated in these CAD tools, can easily bypass faults once they are detected. Thus the biochip user can concentrate on the development of the nano- and micro-scale bioassays, leaving assay optimization and implementation details to design automation tools. 1.

  13. Computer-Aided Design & Applications, 5(1-4), 2008, xxx-yyy 2008 CAD Solutions, LLC

    E-Print Network [OSTI]

    Salustri, Filippo A.

    Computer-Aided Design & Applications, 5(1-4), 2008, xxx-yyy 1 © 2008 CAD Solutions, LLC http information, early design. DOI: 10.3722/cadaps.2008.xxx-yyy 1. INTRODUCTION The authors have observed(1-4), 2008, xxx-yyy 2 cognition. As such, we see the user and the diagram existing in a kind of symbiosis

  14. A CAD tool for the power estimation of CMOS, BiCMOS and BiNMOS gates

    E-Print Network [OSTI]

    Islam, Kazi Inamul

    1995-01-01T23:59:59.000Z

    This thesis describes a CAD tool for the power estimation of CMOS, BiCMOS and BiNMOS gates. Using analytical models for the transient behavior of the gates, accurate estimates of the power dissipated by each type of gate during a typical transition...

  15. Int. Symposium on Mechanics and Materials, May 9-14, 2010, Greece CAD-Based Simulation of Gear hobbing

    E-Print Network [OSTI]

    Aristomenis, Antoniadis

    31st Int. Symposium on Mechanics and Materials, May 9-14, 2010, Greece CAD-Based Simulation of Gear hobbing N. Tapoglou, T. Belis, D. Vakondios, A. Antoniadis Technical University of Crete Chania, Greece;31st Int. Symposium on Mechanics and Materials, May 9-14, 2010, Greece As in any cutting process

  16. AutoCAD Tutorial # 1: Nidhi Vaid Creating a Footprint Map of a Community Using an Aerial Photograph

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    Standard toolbar Draw toolbar Modify toolbar Command Line #12;AutoCAD Tutorial # 1: Nidhi Vaid Creating. All the objects in the drawing space are considered entities such as lines, arcs, circles, text-axis up the screen and positive Z-axis coming out of the screen towards the user). For example, lines

  17. Cad. Sade Pblica, Rio de Janeiro, 24(7):1493-1508, jul, 2008 Mapeamento do risco de homicdio com base na

    E-Print Network [OSTI]

    Camara, Gilberto

    homicídio com base na co-krigeagem binomial e simulação: um estudo de caso para São Paulo, Brasil Mapping têm incorporado o espaço e o tempo como variáveis de análise, com base na possibilidade de localização para os dados de ARTIGO ARTICLE #12;Camargo ECG et al.1494 Cad. Saúde Pública, Rio de Janeiro, 24

  18. ITS version 5.0 :the integrated TIGER series of coupled electron/Photon monte carlo transport codes with CAD geometry.

    SciTech Connect (OSTI)

    Franke, Brian Claude; Kensek, Ronald Patrick; Laub, Thomas William

    2005-09-01T23:59:59.000Z

    ITS is a powerful and user-friendly software package permitting state-of-the-art Monte Carlo solution of linear time-independent coupled electron/photon radiation transport problems, with or without the presence of macroscopic electric and magnetic fields of arbitrary spatial dependence. Our goal has been to simultaneously maximize operational simplicity and physical accuracy. Through a set of preprocessor directives, the user selects one of the many ITS codes. The ease with which the makefile system is applied combines with an input scheme based on order-independent descriptive keywords that makes maximum use of defaults and internal error checking to provide experimentalists and theorists alike with a method for the routine but rigorous solution of sophisticated radiation transport problems. Physical rigor is provided by employing accurate cross sections, sampling distributions, and physical models for describing the production and transport of the electron/photon cascade from 1.0 GeV down to 1.0 keV. The availability of source code permits the more sophisticated user to tailor the codes to specific applications and to extend the capabilities of the codes to more complex applications. Version 5.0, the latest version of ITS, contains (1) improvements to the ITS 3.0 continuous-energy codes, (2) multigroup codes with adjoint transport capabilities, (3) parallel implementations of all ITS codes, (4) a general purpose geometry engine for linking with CAD or other geometry formats, and (5) the Cholla facet geometry library. Moreover, the general user friendliness of the software has been enhanced through increased internal error checking and improved code portability.

  19. Curating Architectural 3D CAD Models

    E-Print Network [OSTI]

    Smith, MacKenzie

    Increasing demand to manage and preserve 3-dimensional models for a variety of physical phenomena (e.g., building and engineering designs, computer games, or scientific visualizations) is creating new challenges for digital ...

  20. Development of granular target for CADS

    E-Print Network [OSTI]

    McDonald, Kirk

    Exchanger 90K Max velocity of cold fluid 1.52m/s Wall Thickness of Heat Exchanger 1.75cm Flux of Gas inject Design goals: For CIADS, the target can accommodate 2.5MW=250MeV@10mA; the target system can update pipe can choose ~30-40 cm, then, the target would be design for >10MW. The heat removal of the window

  1. Impact of CAD on the submittal process 

    E-Print Network [OSTI]

    De Lapp, James Andrew

    2005-02-17T23:59:59.000Z

    of design intent from the architect and engineer to the specialty trade contractor for the production of shop drawings. The use of information technology to increase the ability to meet this intent is not being fully utilized today. A case study...

  2. Parallel GPU Algorithms for Mechanical CAD

    E-Print Network [OSTI]

    Krishnamurthy, Adarsh

    2010-01-01T23:59:59.000Z

    graphics cards have hardware support (dynamic flow control)control points and knot vectors stored as textures in graphicscontrol points data for a large number of surfaces to the graphics

  3. artery disease cad: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hanson, Stephen Jos 18 Association of Common Polymorphisms in GLUT9 Gene with Gout but Not with Coronary Artery Disease in a Large Case-Control Study CiteSeer Summary:...

  4. Thermal-Aware CAD for Modern Integrated Circuits

    E-Print Network [OSTI]

    Logan, Sheldon Logan Paul

    2013-01-01T23:59:59.000Z

    2.7.1 Voltage Droop . . . . . . .in IR drop and voltage droop violations leading to timingin reducing the dynamic voltage droop (L dt ) caused by the

  5. aided detection cad: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: in as guestanon. Guests do not have full access to the database. Enter terms in the Search for: box and it will search all words that you enter. Searches are...

  6. aided design cad: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: in as guestanon. Guests do not have full access to the database. Enter terms in the Search for: box and it will search all words that you enter. Searches are...

  7. CAD Interfaces to the ARROW Manufactured Product Server

    E-Print Network [OSTI]

    Amor, Robert

    design tools (e.g., thermal simulation programs). The main parts of the system comprise the following through a design tool. Second, the main system or Building Object Warehouse (BOW) server. Third

  8. Thermal-Aware CAD for Modern Integrated Circuits

    E-Print Network [OSTI]

    Logan, Sheldon Logan Paul

    2013-01-01T23:59:59.000Z

    then calculated using a conjugate gradient method once thepreconditioned conjugate gradient method using an incompleteviolations using a conjugate gradient method based on

  9. 3D Measurements in Images using CAD Models George Vosselman

    E-Print Network [OSTI]

    Vosselman, George

    is therefore subject of research at many institutes. Whereas efforts to fully automate the process of building the alignment. 1 Introduction Future geographical information systems will contain 3D and highly structured extraction show good progress [2, 5], it is clear that under many circumstances automation is extremely

  10. An empirical investigation of AutoCAD user interfaces

    E-Print Network [OSTI]

    Flores, Patricia Laura

    1992-01-01T23:59:59.000Z

    . Mean poductivity rate with respect to interface. 23 mean = 7. 49 std. dev. 2 02 7. 0 6. 0 5. 0 4. 0 3. 0 2. 0 mean = 4. 50 std, dev. = 1. 28 mean = 5. 54 std. dev. ? 1. 23 1. 0 0. 0 Drawing ensioning DisplaYing Figure 9. Mean...

  11. RAPID/Roadmap/7-CA-d | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎ | Roadmap Jump to: navigation, searcheWA-a <NV-ca2)b

  12. RAPID/Roadmap/13-CA-d | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformation TexasTexas)ID-a < RAPID‎ |TX-abc <d

  13. RAPID/Roadmap/14-CA-d | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformation TexasTexas)ID-a <RAPID/Roadmap/14a <d

  14. RAPID/Roadmap/19-CA-d | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformatione < RAPID‎ | RoadmapHI-acCA-b <c

  15. RAPID/Roadmap/8-CA-d | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformatione <RAPID/Roadmap/7-FD-k <TX-ca <d

  16. Complete the quotation. Solve CLUES (A through CC) to fill in letter blanks, then transfer letters (e.g., A-105) to matching squares in the GRID (105-A). Work both directions, using "guessed" words in the grid to fill in blanks for clues. Bonus prize: Whe

    E-Print Network [OSTI]

    Wright, Charles R.B.

    it with care 74 125 70 4 127 73 102 43 M. Drumstick's neighbor 150 62 21 28 122 N. Use profanity 78 93 29 123

  17. Human Factors Principles Applied to CAD/CAM Presentation by Eric N. Wiebe

    E-Print Network [OSTI]

    · Specialized notation and symbols · Heavy cognitive load · Often did not take advantage of perceptual for simulating the fabrication and assembly process Product Databases in the Furniture Industry · Parts

  18. Electronic Design Project 2 Cadence OrCAD PCB Designer 16.3

    E-Print Network [OSTI]

    Davies, John H.

    , although this functionality has long been integrated into PSpice. · PCB Editor (Allegro) is the application version of Cadence's Allegro suite for PCB design and much of the documentation refers to `Allegro' rather than `PCB Editor'. Allegro is widely used in industry and is similar to the Cadence software for laying

  19. CAD as a tool in urban design : a study in reunited Germany

    E-Print Network [OSTI]

    Jurkschat, Axel (Axel R. M.)

    1995-01-01T23:59:59.000Z

    Architecture is a phenomenon of space and time. Since ancient times mankind has found its place in space and time with the help of architecture. Thus architecture refers to more than just practical requirements, science ...

  20. Investigation of target in C-ADS and IAEA ADS benchmark

    E-Print Network [OSTI]

    Guojun Hu; Hongli Wu; Tian Jing; Xiangqi Wang; Jingyu Tang

    2012-11-01T23:59:59.000Z

    The spatial and energy distribution of spallation neutrons have an effect on the performance of Accelerator Driven Subcritical systems. In this work, the spatial, energy distribution of spallation neutrons and the effect of these factors on proton efficiency was studied. When the radius of spallation region increases, backward neutrons were found to have a rather big ratio and have a positive effect on proton efficiency. By making better use of these neutrons, we may increase the radius of target to satisfy some other requirements in the design of subcritical core.

  1. Representations and Algorithms for CAD CAM Digital Libraries William C. Regli

    E-Print Network [OSTI]

    Cicirello, Vincent A.

    and Intelligent Computing Laboratory Department of Mathematics and Computer Science Drexel University 3141 Department of Mathematics and Computer Science Drexel University 3141 Chestnut Street Philadelphia, PA 19104 methods for reasoning about complex geometric, feature, and engineering information. In particular, we

  2. Organizational Assessment Of Integrating CAD And Product Data Management Tools In The Furniture Industry

    E-Print Network [OSTI]

    Industry Furniture Manufacturing and Management Center Technical Report 1996-1997 Eric N. Wiebe Jennifer J of issues faced by furniture companies are given. The literature review closes by focusing on additional in manufacturing and design has popularized the concept of the virtual product database. Product Data Management

  3. Convergence acceleration techniques in CAD systems for grounding analysis in layered soils

    E-Print Network [OSTI]

    Colominas, Ignasi

    real grounding grids in real-time in personal computers. The ex- tension of this approach- drical conductors buried to a certain depth of the ground surface (0.5 - 1.0 m), and supplemented be kept under certain maximum safe limits (step, touch and mesh voltages) [1, 2]. In the last four decades

  4. The CENP-A NAC/CAD kinetochore complex controls chromosome congression and spindle

    E-Print Network [OSTI]

    Cross, Robert

    Institute, The Chart, Oxted, Surrey, UK, 2 Institute of Biochemistry, ETH Zurich, Zurich, Switzerland and 3-based force generation (Kline et al, 2006; McAinsh et al, 2006), and KNL-1/Spc105 that links MIND and NDC80

  5. Computer-Aided Design & Applications, 8(a), 2011, bbb-ccc 2011 CAD Solutions, LLC

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    which are mastered by the Product Lifecycle Management (PLM). But, PLM is underdeveloped in SMEs mainly framework to facilitate the implementation of PLM systems in SMEs. Our approach proposes a generic model of the modeling, in order to highlight the improvements provided. Keywords: PLM, Enterprise modeling, Information

  6. C-AD electron-cooling Photocathode R&DPhotocathode R&D

    E-Print Network [OSTI]

    tolock to attach deposition system to SCRF gunSCRF gun Capsule design with diamond windowCapsule design

  7. CAD/CAM integration based on machining features for prismatic parts

    E-Print Network [OSTI]

    Hou, Min

    2008-01-01T23:59:59.000Z

    as a starting point for CAM systems to generate tool paths and NC programs. The user still needs to manually create the machining operations and define geometry, cutting tool, and various parameters for each operation. Features play an important role...

  8. CumInCAD: Cumulative Index of Computer Aided Architectural Design Database Guide

    E-Print Network [OSTI]

    Yener, Aylin

    in as guest__anon. Guests do not have full access to the database. Enter terms in the Search for: box and it will search all words that you enter. Searches are conducted across all fields in the database (i.e., author on the topic you are researching. To do this... Use this: Search a single term Type in your term. Search

  9. Energy-aware architectures, circuits and CAD for field programmable gate arrays

    E-Print Network [OSTI]

    Honoré, Francis

    2006-01-01T23:59:59.000Z

    Field Programmable Gate Arrays (FPGAs) are a class of hardware reconfigurable logic devices based on look-up tables (LUTs) and programmable interconnect that have found broad acceptance for a wide range of applications. ...

  10. Decomposing CAD Models of Objects of Daily Use and Reasoning about their Functional Parts

    E-Print Network [OSTI]

    @cs.uni-bremen.de Michael Beetz beetz@cs.uni-bremen.de Abstract-- Today's robots are still lacking comprehensive knowledge-Benczedi and Michael Beetz are with the Institute for Artificial Intelligence and the TZI (Center for Computing

  11. CAD Tools for Creating Space-filing 3D Escher Tiles

    E-Print Network [OSTI]

    Howison, Mark

    2010-01-01T23:59:59.000Z

    Space-filing 3D Escher Tiles Mark Howison 1 and Carlo H.decorative solids that tile 3-space in a regular, isohedralrepresentations of 3D tiles, including a Java implementation

  12. To appear in Computer-Aided Design, vol. 37, 2004 Education-Driven Research in CAD

    E-Print Network [OSTI]

    Rossignac, Jarek

    research category, named Education-Driven Research (abbreviated EDR), which fills the gap between). The objective of EDR is to simplify the formulation of the underlying theoretical foundations and of specific. As such, EDR is a difficult and genuine research activity, which requires a deep understanding

  13. MFR PAPER 1033 Research determin es fatty aCid

    E-Print Network [OSTI]

    ~1 Preparation of Esters \\leth) I e\\ler lIere preparuJ u\\lng the mClhod :r, "ere \\cparated an d Idenlilied u\\lng , Zook E J Powell B Hackley J Emerson J Brooker. and G M Knobl

  14. UNIVERSIT DE NANTES FACULT DES SCIENCES ET DES TECHNIQUES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    recherche INRIA Rocquencourt Responsable Scientifique : Jean-Marc Menaud, Ma^itre-assistant ´Ecole des Mines´e hallucinante pour r´ev´eler des probl`emes que j'aurais mis un temps fou `a enfouir. Enfin, `a Jean-Marc Menaud

  15. Proceedings CANCAM 2003, pages 106-107 CAD tools can be used to visualise a product once its

    E-Print Network [OSTI]

    Salustri, Filippo A.

    , flowcharts, IDEF, Modelica, and UML. Al- though our analysis continues, we do have some early results. Some.g. bond graphs and Modelica) are primarily for sys- tems analysis and assume that at least a systems level

  16. Data:96355698-cad7-47bb-8383-93c9165bf056 | Open Energy Information

    Open Energy Info (EERE)

    3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Village of Black Earth, Wisconsin (Utility Company) Effective date: 19990801 End date if known: Rate name:...

  17. Mechanisms of hormonal regulation of CAD gene expression and inhibition by Aryl hydrocarbon receptor agonist in human breast cancer cells

    E-Print Network [OSTI]

    Khan, Shaheen Munawar Ali

    2007-04-25T23:59:59.000Z

    -mediated pathway. 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and other aryl hydrocarbon receptor (AhR) ligands suppress several E2-induced responses in the rodent uterus and mammary tumors and in human breast cancer cells. TCDD inhibited hormone...

  18. To appear in IEEE Trans. On CAD 1 Abstract--Partial shading is a serious obstacle to the effective

    E-Print Network [OSTI]

    Pedram, Massoud

    utilization of photovoltaic (PV) systems since it can result in a significant degradation in the PV system of a large-scale PV system comprised of 3 PV modules with 60 PV cells per module. Index Terms--Photovoltaic system, partial shading, photovoltaic module reconfiguration, dynamic programming. I. INTRODUCTION UE

  19. Accessing and Utilizing Satellite and Aerial Imagery Data in AutoCAD Map 3D and Autodesk MapGuide

    E-Print Network [OSTI]

    Ahmad, Sajjad

    imagery can gives designs more of an impact. Construction #12;Part 1: Imagery Basics: Accuracy, Resolution infrastructure. Risk Management Team: Lessen staffing overhead for preventative maintenance along pipelines GIS a pipeline rupture could have a significant impact to the public #12;Telecom Build, maintain, & protect route

  20. MammoExplorer: An Advanced CAD Application for Breast DCE-MRI Ernesto Coto Soren Grimm Stefan Bruckner

    E-Print Network [OSTI]

    Coto, Ernesto

    way to fight breast cancer is early detection. The most widely used radiological means of early detection of breast cancer is X-ray Mammog- raphy, where low doses of radiation produce X-rays, obtaining to produce digital images of breast tissue. Each study comprises hun- dreds of images, cross-sectional in all

  1. Modification to the Monte Carlo N-Particle (MCNP) Visual Editor (MCNPVised) to read in Computer Aided Design (CAD) files

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'. William HirstLong-TermPossibilityModification to

  2. Comments for the FESAC Panel on MFE Priorities

    E-Print Network [OSTI]

    PMI/PFC solutions (if any) that work ­ Solid W/He Gas cooling leading candidate but have ZERO Wall (>500C, actively cooled, 1 year operational lifetime...) · PMI: Discharge duration, fuel

  3. Mr. John E. Kieling, Bureau Chief Hazardous Waste Bureau

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    if deemed necessary by WHE. Attachments are required to be completed as the applicable step is completed. 1.0 UNDERGROUND SITE-DERIVED WASTE CONTAINER PREPARATION NOTE Adequate...

  4. Plenty of room at the bottom Feynman questions on molecular biology (1959-1960)

    E-Print Network [OSTI]

    Muiño, Ricardo Díez

    ://ghr.nlm.nih.gov/handbook/mutationsanddisorders/possiblemutations #12;epli ation b! the "#$ pol!merase robot #12;Feynman question · o is the base o e in the DNA' end by an enzyme robot specific to the anticodon #12;(rans ription)a hiner! * #$ pol!merase robot m ? · Whe e oes the otein sit · Whe e oes the a ino aci o in ? The ri o o e ro ot #12;+u ar!oti ribosome

  5. Data:D2129d32-012f-4dd4-a7ca-d2315ec62f0a | Open Energy Information

    Open Energy Info (EERE)

    Energy Market Adjustment 0.003KWH (Added to All Above Energy Rates) Controlled Water Heater Credit .00736KWH Applies to the first 1,000 KWHs each month (October-March)...

  6. Data:28261509-fdd1-490c-9179-08e7cad9c1d7 | Open Energy Information

    Open Energy Info (EERE)

    renew until otherwise canceled. Source or reference: http:www.cityofperryok.comFilesCodesCityCode101211.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW):...

  7. Data:1cee2f9e-97b4-4d01-afeb-72695a2cad92 | Open Energy Information

    Open Energy Info (EERE)

    Cp-3. This rider allows customers the option of purchasing blocks of their energy from renewable resources. Renewable energy will be sold only in blocks of 300kWh per Month with...

  8. Data:44fae8c6-1aaf-4cad-a1c0-0a7ca7bc961d | Open Energy Information

    Open Energy Info (EERE)

    3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Indiana Michigan Power Co (Michigan) Effective date: 20130101 End date if known: Rate name: ECLS - 80...

  9. Data:Df29fc68-6cad-401d-9b65-f696e3cbc264 | Open Energy Information

    Open Energy Info (EERE)

    Energy Effective date: 20120101 End date if known: Rate name: Schedule GS-1-DG: Distributed Generation Sector: Commercial Description: AVAILABILITY This Rate Schedule is...

  10. Health assessment for Del Norte County Pesticide Storage Area, Cresent City, Del Norte County, California, Region 9. CERCLIS No. CAD000626176. Final report

    SciTech Connect (OSTI)

    Not Available

    1989-04-18T23:59:59.000Z

    The Del Norte County Pesticide Storage Area is located northwest of Cresent City, California. The site soils and ground water were contaminated with a myriad of pesticides and herbicides. The data also indicated an elevated concentration of chromium was present on-site and off-site; however, it does not appear to be related to the activities involving the use of the site as a pesticide storage area. The site was included on the National Priorities List in 1983. The storage area operated from 1970 until 1981, accepting containers from local agricultural and forestry-related industries. The intended use of the site was as an interim or emergency storage area for pesticide containers which had been triple rinsed and punctured prior to coming to the site. There were 9 private wells monitored within 0.50 miles of the site and the results indicated these wells were not contaminated by site contaminants. This site is of public health concern because of the potential for exposure to pesticides, herbicides, and chromium at concentrations of health concern.

  11. Data:9fd1b035-68cb-498f-8df3-1cad399fca8b | Open Energy Information

    Open Energy Info (EERE)

    the availability of replacement parts Source or reference: http:www.cmpco.comYourHomepricingpricingSchedulesdefault.html Source Parent: Comments Applicability Demand (kW)...

  12. Data:0df3838f-3cd3-43a7-8adb-335741cad484 | Open Energy Information

    Open Energy Info (EERE)

    residential outbuildings, farms, and individual apartments where residential uses of electricity constitute more than 50% of customers' energy use, and to common area use of...

  13. Data:Abc29579-1441-440c-ad0f-e3b7ea95930f | Open Energy Information

    Open Energy Info (EERE)

    date if known: Rate name: Electric Current for Heating Sector: Residential Description: Electricity used exclusively for heating; available September 18 until May 18. Source or...

  14. Public health assessment for Del Amo Facility, Los Angeles, Los Angeles County, California, Region 9. Cerclis No. CAD029544731. Preliminary report

    SciTech Connect (OSTI)

    Not Available

    1994-01-12T23:59:59.000Z

    Located in Los Angeles, California, the 280-acre Del Amo hazardous waste site contains contamination resulting from a synthetic rubber manufacturing facility consisting of three plants, which formerly operated on the site from 1943 through the mid to late 1960s. Primary contaminants associated with a 3.7-acre waste disposal area located near the southern boundary of the Del Amo site include volatile aromatic hydrocarbons (such as benzene and ethylbenzene) and polycyclic aromatic hydrocarbons (such as naphthalene, benzo(a)pyrene, phenanthrene, and chrysene). Based on the information available for review, CDHS and ATSDR conclude that the Del Amo site presently poses an indeterminate public health hazard to nearby residents and workers.

  15. Data:0f468f93-07aa-4fdb-8b0b-b90559f5cad4 | Open Energy Information

    Open Energy Info (EERE)

    date: 20110315 End date if known: Rate name: MU-1 - a1b - 100 watt HPS Sector: Lighting Description: Lamps in enclosed fixtures, mounted on metal or fiberglass columns and...

  16. Data:Ab4fc83c-ad54-4de3-9ead-df5e554b55fd | Open Energy Information

    Open Energy Info (EERE)

    of two consecutive months. : A customer may elect to cease taking service under this tariff after demonstrating for an eleven month period that they do not equal or exceed 1,800...

  17. APPLICATION:APPLICATION: The first real application of the CADThe first real application of the CAD--MCNP coupling approach is toMCNP coupling approach is to

    E-Print Network [OSTI]

    California at San Diego, University of

    neutron wall loading profiles in this portion. For 1There are 8 neutron wall loading profiles in this portion. For 1600MW600MW of total neutron power, the average neutron loading is 1.985MW/mof total neutron power, the average neutron loading is 1.985MW/m²² and peak is 3.24MW/mand peak is 3.24MW/m²² which

  18. Data:1cbf754b-1002-4daf-b281-0f58729b6cad | Open Energy Information

    Open Energy Info (EERE)

    Information Utility name: City of Frankfort, Indiana (Utility Company) Effective date: 19971027 End date if known: Rate name: SL Public Street Lighting Overhead 250 watt Mercury...

  19. MathCAD model for the estimation of cost and main characteristics of air-cushion vehicles in the preliminary design stage

    E-Print Network [OSTI]

    Gougoulidis, Georgios

    2005-01-01T23:59:59.000Z

    In the naval architecture terminology, the term ACV (Air Cushion Vehicle) refers to this category of vehicles, in which a significant portion of the weight (or all the weight) is supported by forces arising from air pressures ...

  20. Decontaminating Flooded Wells (Spanish)

    E-Print Network [OSTI]

    Boellstorff, Diana; Dozier, Monty; Provin, Tony; Dictson, Nikkoal; McFarland, Mark L.

    2007-10-08T23:59:59.000Z

    , Profesor Adjunto y Especialista en Recursos H?dricos de Extensi?n; Nikkoal J. Dictson, Especialista en Programa Calidad de Agua Sistema Universitario Texas A&M Si se ha inundado su pozo, debe asumir que el agua en ?l se ha contaminado. No utilice el...ER-011S 10-07 Mark L. McFarland, Profesor Adjunto y Especialista en Recursos H?dricos de Extensi?n; Diane E. Boellstorff, Especialista en Programa Calidad de Agua; Tony L. Provin, Profesor Adjunto y Qu?mico de Suelos de Extensi?n; Monty C. Dozier...

  1. General Notes: 1 point was deducted from each answer which failed to use the proper number of significant

    E-Print Network [OSTI]

    Kammen, Daniel M.

    . Dan's hybrid vs. neighbor's SUV (15 pts) The gas price is $4.00 per gallon. Neighbor's SUV uses per water i. from most energy dense to least energy dense Nuclear = x x x x = 2.3x107 M J/kg Natural gas x x = 8.5x109 bbl oil c. 4.054x1012 kWhe x x x x x = 2.1x106 kg fuel d. 4.045x1012 kWhe x x x = 3.5x1012

  2. The division of Machine Design

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Requirement engineering Simulation Multi- disciplinary design VR CAD Robust optimization 3D- printing Product

  3. THIBAULT BERTRAND (203) 747 5857 thibault.bertrand@yale.edu

    E-Print Network [OSTI]

    O'Hern, Corey S.

    , Mechanical Engineering (CAD with SolidWorks, 3D printing), Electrical Engineering (Arduino, servos, LEDs

  4. Building and Environment 39 (2004) 879883 www.elsevier.com/locate/buildenv

    E-Print Network [OSTI]

    "after CAD." BLIS consortium (Building Lifecycle Interoperable Software) was formed with the release

  5. Manufacturing Engineering Intern_Job Posting_42814 JJOOBB PPOOSSTTIINNGG

    E-Print Network [OSTI]

    Ravikumar, B.

    and Assembly (DFMA), Design / Process Failure Mode Analysis (FMEA) Experience using CAD software to produce

  6. JOURNAL DE PHYSIQUE CoZZoque C7, suppZdment au n07, Tome 40, JuiZZet 1979, page C7-321 HEAT TRANSFER AND FLOW INA HYDROGENPLASMA REACTOR

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    in the entrance of the canal is assumed to be reactor walls is of major importance for the design parabolic with no con- tact with cold walls. The asymptotic region constitutes the region of flow development of the anodic bone whe- ma reactor working with hydrogen and defined by the re the arc strikes the wall

  7. versity employ ile and comp

    E-Print Network [OSTI]

    Carrington, Emily

    tha ems at highe identiality, int rol over the re mployees wh u access Univ cer (CISO) en · Use anti: Advisory on //ciso.washin necting When //www.washin onnect Tools //www.washin additional info Security ss whe braries, or air ers. formation is lo apply to the p ory_Smart_P n or help@uw Office of the CISO

  8. Is advective heat transport significant at the Dead Sea E. SHALEV, V. LYAKHOVSKY AND Y. YECHIELI

    E-Print Network [OSTI]

    Lyakhovsky, Vladimir

    , Israel. Email: eyal@gsi.gov.il Geofluids (2007) 7, 292­300 INTRODUCTION Geothermal gradient and pore of pull-apart basin formation, they demonstrated that the major parameter controlling the basin structure with a surface heat flux of 40 mW m)2 . Here we present temperature­depth data and assess whe- ther advective

  9. Static and dynamic analysis of articulated and continuous framed structures by the matrix displacement method

    E-Print Network [OSTI]

    Baskurt, Fahri Yuce

    1970-01-01T23:59:59.000Z

    To!ping o 1 th st actus! i mass. 3. To c toblish guiieline. for !late!u!ining wheLher the structure c: . . !? . , nai! -e 1 sLat! calif . " a tr~ . -, ven. though !ct! city it may be a ri, rd Era!me. - id!. li!cs will be estab I i. 1!ed...

  10. " *.--S, * b different of the turbine's blades in

    E-Print Network [OSTI]

    Ranganathan, Jai

    The Economist #12;" *.--S, * b different of the turbine's blades in unpre&&l$$ ,and confusing ways. The clutter tbi!3-ba,useson the screen is made worse whe+%e signalb bounced around between different turbines-scaleversion atthe siteof a singlewind turbine. It was ableto show a different

  11. ER100/PPC184/ER200/PPC284, Fall 2014 Energy Units & Conversions, Global Energy Use

    E-Print Network [OSTI]

    Kammen, Daniel M.

    ft3 natural gas g. 4.490x1012 kWhe/yr x 1 0.14 x 1 2· 5.7 x 1 365 = 1.5x1010 m2 solar panels h a bicycle) because it does not incorporate all of the energy required to grow, process, transport, and cook

  12. Surveillance study of health effects associated with cleanup of a hazardous waste site, Ralph Gray Trucking Company (a/k/a Westminster Tract Number 2633), Westminster, Orange County, California, Region 9: CERCLIS number CAD981995947

    SciTech Connect (OSTI)

    Hoshiko, S.; Underwood, M.C.; Smith, D.; DeLorenze, G.; Neuhaus, J.

    1999-04-01T23:59:59.000Z

    Excavation of a Superfund site, the Ralph Gray Truncking Company located in Westminster Orange County, California was anticipated to release sulfur dioxide and other chemicals. The California Department of Health Services, under cooperative agreement with the Agency for Toxic Substances and Disease Registry, conducted a surveillance study to assess whether illnesses were associated with cleanup activities. A panel primarily composed of more sensitive persons (n = 36) was selected to report daily respiratory symptoms and odors. Exposures included sulfur dioxide (SO{sub 2}) measurements and daily tonnage of waste removed. Analysis used Conditional Likelihood Regression and Generalized Estimating Equations (GEE) methods. Levels of SO{sub 2} were generally higher than usual ambient air, at times exceeding levels which can cause health effects among asthmatics in laboratory settings. Wheeze and cough were significantly associated with tonnage of waste removed, especially on days when the highest amounts of waste were removed. Upper respiratory symptoms were found to be associated with SO{sub 2}, and weak relationships were found with nausea and burning nose and SO{sub 2}.

  13. An Application of a State of the Art 3D-CAD-Modeling and Simulation System for the Decommissioning of Nuclear Capital Equipment in Respect of German Prototype Spent Fuel Reprocessing Plant Karlsruhe

    SciTech Connect (OSTI)

    Schulz, M.; Boese, U.; Doering, K.

    2002-02-25T23:59:59.000Z

    Siempelkamp Nukleartechnik GmbH is engaged in the optimization of decommissioning processes for several years. With respect of the complexity of the projects, the time frame and the budget it is necessary to find more effective ways to handle those tasks in the near future. The decommissioning and dismantling will be achieved in six steps taking into account that some processing equipment can be dismantled before and the rest only after the High Active Liquid Waste Concentrate (HAWC) has been vitrified approximately by mid of 2005. After the successful beginning of the remote dismantling of the main process cells from March 2000, the next remote dismantling project at the WAK was initiated April 2000.

  14. Health assessment for Fairchild Semiconductor Corporation Proposed National Priorities List Site, Intel Corporation National Priorities List Site, Raytheon Company National Priorities List Site, Mountain View, California, Region 9. CERCLIS No. CAD095989778. Final report

    SciTech Connect (OSTI)

    Not Available

    1989-02-07T23:59:59.000Z

    The Fairchild Semiconductor Corporation, the Intel Corporation, and the Raytheon Company each have a facility located approximately 3 miles south of San Francisco Bay in Mountain View, California. The Intel and Raytheon facilities are on the National Priorities List (NPL) while the Fairchild facility is a proposed NPL site. Within the one-half square mile area containing the three sites, 37 potential and two inferred sources of contamination have been identified. The major contaminants for the three sites include trichloroethene, 1,1,1-trichloroethane, 1,1-dichloroethene, 1,2-dichloroethene, 1,1-dichloroethane, chloroform, tetrachloroethene, 1,2-dichlorobenzene, trichlorotrifluoroethane (Freon 113), and vinyl chloride. These contaminants are attributed to the sites and have been found primarily in the ground water and subsurface soil on the sites and in ground water off the sites. Contaminant concentrations in surface soils were within the normal range of background values. Volatile organic compounds (VOCs) have been found in surface water west of the study area in Stevens Creek, an intermittent stream. The source of these contaminants is suspected to be treated ground water that has been pumped from the Fairchild and Raytheon sites and discharged to Stevens Creek under a permit.

  15. M. Z. Ouertani, S. Baina, L. Gzara and G. Morel1 Accepted Manuscript in Computer-Aided Design http://dx.doi.org/10.1016/j.cad.2010.03.006

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    separation between the different systems involved in the product lifecycle, querying and sharing product. This is the essence of Product Lifecycle Management (PLM) (Ameri and Dutta, 2005). Moreover, although each process view of the product should improve the product lifecycle management. The concept of PLM is aimed

  16. MEASURING RECURRENT AND NON-RECURRENT TRAFFIC CONGESTION

    E-Print Network [OSTI]

    Skabardonis, Alexander; Varaiya, P P; Petty, Karl

    2008-01-01T23:59:59.000Z

    California Highway Patrol (CHP/CAD) system is stored in theof the limitations imposed by the CHP incident data in ourto incidents reported in the CHP/CAD database. We know that

  17. Ford Motor Company September 1, 1993 and Oct 4-6, 1993 On September 1, 1993 I visited the North American Design (NAD) office

    E-Print Network [OSTI]

    Whitney, Daniel

    and the Powertrain Systems Department. History of CAD/CAM at Ford Ford was one of the pioneers in automotive CAD automobiles. [Ref 2] As few as 24 properly defined patches produced a credible car model. (See Figure 1.) 1

  18. Measuring Recurrent and Non-Recurrent Traffic Congestion

    E-Print Network [OSTI]

    Skabardonis, Alexander; Varaiya, Pravin P.; Petty, Karl F.

    2008-01-01T23:59:59.000Z

    California Highway Patrol (CHP/CAD) system is stored in theof the limitations imposed by the CHP incident data in ourto incidents reported in the CHP/CAD database. We know that

  19. Abarbanel, Roy J. DOB: 8/4/52

    E-Print Network [OSTI]

    Sura, Philip

    ;Ambrester, Blake DOB: 11/6/88 Date Issued: 7/29/08 TPW Vicinity: Entire Campus Case/CAD#: 0807/26/09 TPW Vicinity: Entire Campus Case/CAD#: 090126119 #12;Bowers, Gary DOB: 2/18

  20. CERAMICS IN ORTHODONTISTRY

    E-Print Network [OSTI]

    Mukhopadhyay, Sharmila M.

    crown useless, requiring modification or heat-treated (at 1400F) reshaping of crown and potentially source: CAM-CAD Technology. #12; CAM-CAD Technology. 2012. Dental ZirconiumWeb. 25 Nov 2012. technology

  1. Distributed planning and control for modular robots with unit-compressible

    E-Print Network [OSTI]

    the ability to change shape to act as a reusable 3-D printing device; that is, a physical CAD system

  2. PIECEWISE LINERIZATION OF LOGIC FUNCTIONS* The work was supported by BSF under Grant 2002259

    E-Print Network [OSTI]

    Karpovsky, Mark

    ]. BDDs are a standard part of many CAD systems in logic design, signal processing, and other areas where

  3. Serum phospholipid response to aerobic exercise training in pre- and postmenopausal women 

    E-Print Network [OSTI]

    Kamath, Adrian Elise

    1995-01-01T23:59:59.000Z

    ). High levels of LDL-C is strongly correlated with increased risk for CAD. The general lipid profile of premenopausal women is strongly associated with reduced rates of CAD (9). The beneficial lipoprotein profiles seen in premenopausal women change... that altering blood lipids to beneficial levels will help reduce the rates of CAD. When blood cholesterol levels are lowered, especially LDL-C, the risk of heart attacks caused by CAD is reduced (9). Another important factor implicated in the development...

  4. Evaluation of Demand Shifting with Thermal Mass in Two Large Commercial Buildings

    E-Print Network [OSTI]

    Xu, Peng

    2010-01-01T23:59:59.000Z

    in AutoCAD. The lighting power density and equipment loadand west. The lighting power density and equipment load were

  5. What is Materials Science and Engineering?

    E-Print Network [OSTI]

    Evans, Paul G.

    in conjunction with one another to offer evening seminars and hands-on exploratory sessions in 3D printing, CAD

  6. !! Experimentation & !! Ethics of Testing

    E-Print Network [OSTI]

    Agogino, Alice M.

    and preliminary prototypes "3D printing" of CAD models Wind Turbine Example Dimension 1200/768 "! Printing

  7. ESP Associates, P.A. Presentation Points of Interests

    E-Print Network [OSTI]

    Station AutoCAD ArcGIS CATIA TIN or DTM surfaces Contours Cross Sections Databases Shapefiles Standard Forms

  8. Texas State University-San Marcos Ingram School of Engineering

    E-Print Network [OSTI]

    Asiabanpour, Bahram - Department of Engineering and Technology, Texas State University

    #12;Concept Generation #12;CAD file Chamber Concept #12;FMEA #12;Chamber/Pump assembly Final product

  9. Computer-Aided Design 44 (2012) 611616 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Aristomenis, Antoniadis

    and reached the tool life conclusions in relation to their coatings. In gear skiving, just like in gear-Aided Design journal homepage: www.elsevier.com/locate/cad Gear skiving--CAD simulation approach Aristomenis history: Received 24 August 2011 Accepted 13 February 2012 Keywords: Gear skiving CAD-based simulation

  10. SEIK WENG NG 183 C14A--SIA---CI5A 103.8 (!) CI4B--S1B----C15B 103.4 (1)

    E-Print Network [OSTI]

    Smith, Bradley D.

    September 1995) Data collection: CAD-4 VAX/PC (Enraf-Nonius, 1988). Cell refinement: CAD-4 VAX/PC. Data46, 510-512. Enraf-Nonius (1988). CAD-4 VAX/PC Fortran System. Operator's Guide to the Enraf

  11. ARRIVING AT A COMMON GROUND: JOHN REED SWANTON AND AMERICAN ANTHROPOLOGY

    E-Print Network [OSTI]

    DeSanti, Brady James

    2012-08-31T23:59:59.000Z

    is that the discipline solely devotes itself to studying indigenous North $PeriFanV. 7hiV iV XnGerVWanGaEOe FonViGerinJ Whe GiVFiSOine’V JeneViV GXrinJ Whe IeGeraO JoYernPenW’V ,nGian &OaiPV +earinJV oI the 1950s.3 However, ethnohistory is the combining..., Washington, D.C., 459-470. 19 0F*ee#15; :iOOiaP -ohn. ³$nWhroSoOoJ\\ anG ,WV /arJer 3roEOePV.´ Congress of Arts and Sciences: Universal Exposition, St. Louis, 1904. Ed. Howard J. Rogers. Boston: Houghton Mifflin, 1905-7. 13 savagery.20 Time...

  12. June 2014 Most Viewed Documents for Biology And Medicine | OSTI...

    Office of Scientific and Technical Information (OSTI)

    to the Monte Carlo N-Particle (MCNP) Visual Editor (MCNPVised) to Read in Computer Aided Design (CAD) Files Randolph Schwarz; Leland L. Carter; Alysia Schwarz (2005) 37...

  13. IMPROVING ENERGY EFFICIENCY AND REDUCING COSTS IN THE DRINKING WATER SUPPLY INDUSTRY: An ENERGY STAR Resource Guide for Energy and Plant Managers

    E-Print Network [OSTI]

    Brown, Moya Melody, Camilla Dunham Whitehead, Rich

    2011-01-01T23:59:59.000Z

    CAD = Canadian dollars. SCADA = supervisory control and datasupervisory control and data acquisition (SCADA) systems.SCADA systems save energy by matching equipment performance

  14. Method of altering lignin in trees

    DOE Patents [OSTI]

    MacKay, John (Raleigh, NC); O'Malley, David (Cary, NC); Whetten, Ross (Raleigh, NC); Sederoff, Ronald (Raleigh, NC)

    1998-01-01T23:59:59.000Z

    Methods of providing and breeding trees having more easily extractable lignin due to the presence of a cinnamyl alcohol dehydrogenase (Cad) null gene are presented.

  15. Computing at JLab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    JLab --- Accelerator Controls CAD CDEV CODA Computer Center High Performance Computing Scientific Computing JLab Computer Silo maintained by webmaster@jlab.org...

  16. Blue Border

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Stochastic Cooling Group, BNL C-AD ATF Users' Meeting, 10610 1 Stochastic Cooling Studies at ATF I. Blackler, M. Brennan, B. Johnson, K. Mernick Brookhaven National Laboratory,...

  17. CUPM Secondary teacher ed paper, 10/10/00 1 DRAFT-DRAFT ...

    E-Print Network [OSTI]

    Carl Cowen

    1910-01-01T23:59:59.000Z

    Oct 10, 2000 ... secondary schools—the logic in this seems unassailable. ... sophisticated technical courses focusing on CAD-CAM technologies, finance, and.

  18. automation tools based: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a platform independent manner. 1 unknown authors 2009-01-01 25 Automated Design of Microfluidics-Based Biochips: Connecting Biochemistry to Electronics CAD Computer Technologies...

  19. academic staff feba: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    System used at Victoria University of Wellington, a core course project requires students to work online). CAD: Centre for Academic Development. Distance Frean, Marcus 17...

  20. automotive engine seat: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Using 3-D Computer-Aided Design (CAD) software to design Subramanian, Venkat 5 Faculty of Engineering Mechanical, Automotive and Physics Websites Summary: Faculty of Engineering...

  1. INL '@work' heavy equipment mechanic

    SciTech Connect (OSTI)

    Christensen, Cad

    2008-01-01T23:59:59.000Z

    INL's Cad Christensen is a heavy equipment mechanic. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  2. ambulance vehicles manufactured: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by the simple processes of CNC routing, folding and adhesive bonding. Minimal tooling and a fully CAD integrated, software driven process provide considerable advantages...

  3. advanced manufacturing concepts: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by the simple processes of CNC routing, folding and adhesive bonding. Minimal tooling and a fully CAD integrated, software driven process provide considerable advantages...

  4. Gainous, Edgar DOB: 9/19/58

    E-Print Network [OSTI]

    Sura, Philip

    Campus Case/CAD#: 1107-0208 Hadders, Daniel DOB: 4/2/87 Date Issued: 9/29/08 TPW Vicinity: Entire Campus

  5. DAQMAN

    Energy Science and Technology Software Center (OSTI)

    002802WKSTN00 DAQMAN - A flexible configurable data acquisition system  http://www.bnl.gov/medical/NASA/CAD/NSRL_Data_Acquisition_System.asp 

  6. INL '@work' heavy equipment mechanic

    ScienceCinema (OSTI)

    Christensen, Cad

    2013-05-28T23:59:59.000Z

    INL's Cad Christensen is a heavy equipment mechanic. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  7. January/February 2014 RepRap UA workshop

    E-Print Network [OSTI]

    Escolano, Francisco

    . #12;5.Diseno of 3D printing objects. (5 hours) 5.1 OpenScad. 5.2 FreeCad. POSTAL ADDRESS Universidad

  8. Method of altering lignin in trees

    DOE Patents [OSTI]

    MacKay, J.; O`Malley, D.; Whetten, R.; Sederoff, R.

    1998-10-20T23:59:59.000Z

    Methods of providing and breeding trees having more easily extractable lignin due to the presence of a cinnamyl alcohol dehydrogenase (Cad) null gene are presented. 16 figs.

  9. In vivo prevention of arterial restenosis with paclitaxel-encapsulated targeted lipid–polymeric nanoparticles

    E-Print Network [OSTI]

    Chan, Juliana Maria

    Following recent successes with percutaneous coronary intervention (PCI) for treating coronary artery disease (CAD), many challenges remain. In particular, mechanical injury from the procedure results in extensive endothelial ...

  10. Decades: 1760-1800

    E-Print Network [OSTI]

    Multiple Contributors

    1982-01-01T23:59:59.000Z

    him and he fel t its teeth sl ice i nt o his fles h. Then he was the bat, SOa r i ng in t he ni ght , red-eyed, vicious , bloodth irsty... He didn't qui te wa ke screami ng . But he sat the e t rembling for hour s , hugging hi s pil low, hi...'s uniform came out onto the porch. "I've nothing more to tell you, Li eu tenant." Naomi ' s vo ice floated across the dead lawn, sounding irritable, yet just a shade apprehensive. "And whe re do you say your husband is, Mrs. Collins?" "Away...

  11. A computer program for linear models

    E-Print Network [OSTI]

    Zerbe, Manfred Rudolf

    1966-01-01T23:59:59.000Z

    whe re: (X'X) ! s the sum of squares and crossproducts ~atrix of the X matrix. (X'Y);s the sum of crossprcducts matrix of the x's with Y. I2 C is (X'X) It should be noted that (X'X), hence (X'X) , is a symmetric matrix and is in many practical.... Courant, Differential and Inte ral Calculus &New York: Interscience Publishers, Inc. , I%61) p. 2 18 12 2 22 3 13 4 n(n+I} n(n+I) nn It is possible to obtain the subscript of an element in the X array given the subscripts of the element of the A...

  12. Dark Matters Issue 1 

    E-Print Network [OSTI]

    @, clocd? I knoB a4n @v Pr* dEcG Th'r eds aslb,n drp Fisc Dncrirc my der I will l.ave K'ald alonc THlt TIMEI AND you c$ ontv guN whe? els! i hidt l Dis&s Tl* Dvs Lrlnlg K'M. ltw fining I id.npr 1h. I.r![ig"lc n lmk ds6i bricfne Wu lolc vd 10. Klmad hav' o...

  13. Alternatives to Industrial Cogeneration: A Pinch Technology Perspective

    E-Print Network [OSTI]

    Karp, A.

    and the process heat sink. Whe~ the. heat engine is integrated with the process 1n th1S way, the total energy requirements exceed ~hose of the stand-alone process by an amount that 1S essentially equal to the work produced. Compared to the stand-alone case..., and other energy recovery approaches can playa part in defining alternatives to cogeneration, strategies that confine themselves to such measures are unnecessarily restrictive. Indeed, strategies that rely on a particular technology presume to know...

  14. State-of-the-Art 3-D Assessment of Elements Degrading TBR of

    E-Print Network [OSTI]

    accurate modeling of complex devices by integrating CAD geometry directly with 3-D MCNP code. · To point presentation of blanket geometry with high fidelity in 3-D TBR results. #12;6 Stepwise Approach ­ Build CAD of Fusion Energy August 27- 31, 2012 Nashville, TN, USA #12;2 ARIES Designs (1988 ­ 2012) #12;3 ARIES

  15. WEB-BASED EXERCISES IN COMPUTER ENGINEERING1 Udo Honig, Jorg Keller, Wolfram Schiffmann, FernUniversitat Hagen

    E-Print Network [OSTI]

    Keller, Jörg

    of the discipline. While programming tasks have become standard parts of computer science courses, integration of computer aided design (CAD) systems in computer engineering courses lags behind, partly due to the expense actually entering circuits into a CAD system. By simulation, the students can detect design errors

  16. Synthesis and Domain-specific Optimization of KressArray-based Reconfigurable Computing Engines

    E-Print Network [OSTI]

    Hartenstein, Reiner

    , and similar platforms. Based on the multi-architecture CAD framework, a design-exploration environment has is extending continuously. Makimoto's third wave, which predicts a new trend to standardized parts://configware.de Abstract The paper introduces a concept for reconfigurable hardware platforms along with an according CAD

  17. 1. INTRODUCTION In recent years, the development process has co-

    E-Print Network [OSTI]

    Boyer, Edmond

    Aided Design (CAD) and Computer Numerical Control (CNC). Indeed, from a part defined by a CAD software phases, from the design to manufacture and finally through to the in- spection of the parts. Since then, the design and the ma- nufacture of complex surfaces has become a current practice in industry. Thus

  18. 1 Copyright 1999 by ASME Proceedings of DETC99

    E-Print Network [OSTI]

    Abdel-Malek, Karim

    1 Copyright ©1999 by ASME Proceedings of DETC99: 1999 ASME Design Engineering Technical Conferences and manufacturing (CAD/CAM) computer code have provided versatile venues for end-users to automate the design the product development process within the mechanical CAD/CAM environment. Computer code that implements

  19. Battery-Powered Digital CMOS Massoud Pedram

    E-Print Network [OSTI]

    Pedram, Massoud

    (submarines) Stationary batteries 250 Wh~5 MWh Emergency power supplies, local energy storage, remote relay1 Page 1 USC Low Power CAD Massoud Pedram Battery-Powered Digital CMOS Design Massoud Pedram Power CAD Massoud Pedram Motivation Extending the battery service life of battery-powered micro

  20. Mechanical Engineering Department Multi-scale optical metrology and

    E-Print Network [OSTI]

    Furlong, Cosme

    Mechanical Engineering Department Multi-scale optical metrology and nondestructive testing: CAMET;Mechanical Engineering Department Motivation: production cycle with CAD/CAE/CAM support CAD/CAE Computer #12;Mechanical Engineering Department 200 mm Microscale and Nanoscale Macroscale Actual blade

  1. Journal of Visualized Experiments www.jove.com Copyright 2012 Journal of Visualized Experiments November 2012 | 69 | e4314 | Page 1 of 7

    E-Print Network [OSTI]

    Olveczky, Bence

    protocol for how to build and assemble these drives, including 3D CAD drawings for all custom microdrive components that were designed with 3D CAD software (SolidWorks) and were machined by a local precision, a threaded shuttle that carries the electrodes and provides a point of electrical connection, and an Omnetics

  2. The Chemistry of Atherogenic High Density Lipoprotein

    E-Print Network [OSTI]

    Moore, D'Vesharronne J.

    2012-07-16T23:59:59.000Z

    desorption ionization mass spectrometry viii NaBiY Sodium bismuth ethylenediaminetetraacetic acid NBD 7-nitro-2,1,3-benz-oxadiazol-4-yl pI Isoelectric point PLTP Phospholipid transfer protein SAA Serum amyloid A SDS Sodium dodecyl sulfate TAG... .......... 250 CAD Cohort ApoA-I1 MALDI-MS Discussion ......... 256 CAD Cohort Capillary Electrophoresis Analysis Discussion ................................................... 257...

  3. Computer-aided optimization of DC/DC converters for automotive applications

    E-Print Network [OSTI]

    Neugebauer, Timothy C.

    This paper investigates computer-aided optimization of DC/DC converters, with a focus on converters for dual-voltage automotive electrical systems. A new CAD optimization approach based on Monte Carlo search methods is ...

  4. An EIE/Altener project Co-funded by the EU Commission

    E-Print Network [OSTI]

    . Conclusions #12;4 Preface The assessment of the economic, environmental and energy aspects of the biogas fees and produce biogas at a reasonably good rate were also severely re- stricted. Normally a CAD

  5. A Progressive-ILP Based Routing Algorithm for Cross-Referencing Biochips

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    advances in microfluidics technology, digital microfluidic biochips and their associated CAD problems have.2 [Integrated Circuits]: Design Aids General Terms Algorithm, Performance, Design Keywords Microfluidics in mi- crofluidic technologies [7]. Microfluidic biochips show numerous advantages over conventional

  6. Tactile, spatial interfaces for computer-aided design : superimposing physical media and computation

    E-Print Network [OSTI]

    Shamonsky, Dorothy J

    2003-01-01T23:59:59.000Z

    Computer-aided design (CAD) systems have become invaluable in three-dimensional creative design fields such as architecture and landscape architecture. However, these digital tools have not replaced the use of physical ...

  7. Platform-independent method for computer aided schematic drawings

    DOE Patents [OSTI]

    Vell, Jeffrey L. (Slingerlands, NY); Siganporia, Darius M. (Clifton Park, NY); Levy, Arthur J. (Fort Lauderdale, FL)

    2012-02-14T23:59:59.000Z

    A CAD/CAM method is disclosed for a computer system to capture and interchange schematic drawing and associated design information. The schematic drawing and design information are stored in an extensible, platform-independent format.

  8. A Scalable Framework for Parallelizing Sampling-Based Motion Planning Algorithms

    E-Print Network [OSTI]

    Jacobs, Samson Ade

    2014-04-29T23:59:59.000Z

    application in many other areas of scientific computing such as protein folding, drug design, virtual prototyping, computer-aided design (CAD), and computer animation. These new areas test the limits of the best sequential planners available, motivating...

  9. Dynamic Similarity Search in Multi-Metric Spaces Benjamin Bustos

    E-Print Network [OSTI]

    Skopal, Tomas

    . c) A 3D object database can be used to support CAD tools. For example, standard parts of the standard parts already designed, then the possible replacement of the original part with the standard part

  10. Triangulation and Display of Rational Parametric Surfaces* Chandrajit L. Bajaj Andrew Royappat

    E-Print Network [OSTI]

    Texas at Austin, University of

    is of interest to CAD designers as well as scientists interested in surface visualization. The former usually with non-negative weights, restricting the ratio- nal functions to a standard part of the domain. How- ever

  11. Special Session Challenges and Opportunities for Low Power

    E-Print Network [OSTI]

    He, Lei

    shut-down of unused resources at the architectural level and multiple threshold voltages and gate-vdd and power gating, and time slack allocation for dual-vdd assignment, all involving both architecture and CAD

  12. UNIVERSIDAD SIMN BOLVAR CONSEJO DIRECTIVO

    E-Print Network [OSTI]

    Vásquez, Carlos

    de pregrado, en el área de ingeniería, ciencias básicas, ciencias sociales y arquitectura. · Tiene para el Desarrollo (CAD), Colegio de Agricultura, Alimentos y Nutrición (CAAN), Colegio de Arquitectura

  13. Bimetallic bars with local control of composition by three-dimensional printing

    E-Print Network [OSTI]

    Techapiesancharoenkij, Ratchatee, 1979-

    2004-01-01T23:59:59.000Z

    Three Dimensional Printing (3DP) is a process that enables the fabrication of geometrically complex parts directly from computer-aided design (CAD) models. The success of 3DP as an alternative manufacturing technology to ...

  14. Visualization tools for SpecTRM

    E-Print Network [OSTI]

    Huang, Orton T., 1977-

    2003-01-01T23:59:59.000Z

    SpecTRM is a CAD system for digital automation. The intent of SpecTRM is to assist engineers in managing the requirements, design and evolution process aspects of developing software. The purpose of this thesis project is ...

  15. avnir michel aegerter: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    les definitions suivantes. 1. Une fonction partielle f : D D est WHILE calculable ssi il existe un programme WHILE P tel que f P , c.a-d. pour tout d, e Pagani, Michele...

  16. Design and fabrication of a digitally reconfigurable surface

    E-Print Network [OSTI]

    Peters, Benjamin J

    2011-01-01T23:59:59.000Z

    The digitally reconfigurable surface is a pin based mechanism for creating physical threedimensional contoured surfaces from a computer aided design (CAD) input. When the digital design is properly downloaded into the ...

  17. Unlimited Release

    Office of Scientific and Technical Information (OSTI)

    consists of a timer that activates the flow of current from eighty-four 1.2 V NiCad cells. This battery pack assembly allows the LANL tool to be run on a slickline thus...

  18. Proteasomal inhibition attenuates transcriptional activity of hypoxia-inducible factor 1 (HIF-1) via specific effect on the HIF-1 alpha C-terminal activation domain

    E-Print Network [OSTI]

    Kaluz, S; Kaluzova, M; Stanbridge, E J

    2006-01-01T23:59:59.000Z

    c Effect on the HIF-1? C-Terminal Activation Domain Stefaneffect identi?ed the C-terminal activation domain (CAD) ofN terminus, together with the N-terminal half of the PAS do-

  19. Building an electronic drafting table for sketch recognition

    E-Print Network [OSTI]

    Bruening, Oskar Ernst, 1979-

    2004-01-01T23:59:59.000Z

    Sketch recognition as developed by the CSAIL Design Rationale Group allows a designer to sketch out and test design ideas without the need for complicated CAD programs. An electronic drafting table is required to capture ...

  20. Biologically Inspired Algorithms for Micro and Nano System Design

    E-Print Network [OSTI]

    Mazumder, Pinaki

    .Elements. CAD Design Environment Changed from Uni-processor (Vax) N k f W k i (N W) Network of Workstations (NOW Design Environment Changed from Uni-processor (Vax) To Network of Workstations (NOW) Network

  1. Simulation of an Industrial Rankine Cycle Cogeneration Plant

    E-Print Network [OSTI]

    Carattie, G.; Wepfer, W. J.

    1984-01-01T23:59:59.000Z

    Sophisticated designs of thermal systems may be evaluated, quickly and inexpensively, with the support of computer based system simulation techniques; i.e. CAD for thermal systems. Furthermore, the response of a thermal system to predicted periodic...

  2. Burrs—Analysis, control and removal

    E-Print Network [OSTI]

    Aurich, J.C.; Dornfeld, David; Arrazola, P.J.; Franke, V.; Min, Sangkee

    2009-01-01T23:59:59.000Z

    5.5. Deburring using industrial robots Manual deburring is aCAD data, using an industrial robot. Olivera [116] proposesof Chamfering by an Industrial Robot; for the Case of Hole

  3. Burrs-Analysis, control and removal

    E-Print Network [OSTI]

    Aurich, J. C.; Dornfeld, D.; Arrazola, P. J.; Franke, V.; Leitz, L.; Min, S.

    2009-01-01T23:59:59.000Z

    5.5. Deburring using industrial robots Manual deburring is aCAD data, using an industrial robot. Olivera [116] proposesof Chamfering by an Industrial Robot; for the Case of Hole

  4. Armored Vehicle 

    E-Print Network [OSTI]

    Unknown

    2011-09-05T23:59:59.000Z

    This research is focused on designing a new generation of CAD tools that could help a ”hybrid vehicle” designer with the design process to come up with better vehicle configurations. The conventional design process for any type of hybrid...

  5. Drawing interfaces : building geometric models with hand-drawn sketches

    E-Print Network [OSTI]

    Branda, Ewan E. (Ewan Edward), 1964-

    1998-01-01T23:59:59.000Z

    Architects work on drawings and models, not buildings. Today, in many architectural practices, drawings and models are produced in digital format using Computer-aided Design (CAD) tools. Unquestionably, digital media have ...

  6. A Comparative Study between Newtonian and Non-Newtonian Models in a Stenosis of a Carotid Artery

    E-Print Network [OSTI]

    Khambhampati, Tejasvi Krishna

    2013-12-10T23:59:59.000Z

    programming languages, such as C/C++ or Java™. The ANSYS Workbench platform upon which a geometric model is created, meshed and appropriate boundaries are identified and marked. With bi-directional CAD connectivity, powerful highly-automated meshing, a...

  7. Advanced prototyping of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data

    E-Print Network [OSTI]

    Sengeh, David Moinina

    2012-01-01T23:59:59.000Z

    This work, supported by the Media Lab Consortium, evaluates the design of a Variable Impedance Prosthetic (VIPr) socket for a transtibial amputee using computer-aided design and manufacturing (CAD/CAM). Compliant features ...

  8. TRISO Fuel Performance: Modeling, Integration into Mainstream Design Studies, and Application to a Thorium-fueled Fusion-Fission Hybrid Blanket

    E-Print Network [OSTI]

    Powers, Jeffrey

    2011-01-01T23:59:59.000Z

    to use his MathCAD heat transfer model for my design study,neutronics and heat transfer models to add new capabilitiesused in TRIUNE. Heat Transfer Model TRIUNE uses 1D heat

  9. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report with the calculator. It is constructed from CMOS logic for lowest power consumption and has a NiCad battery back

  10. CLINICAL RESEARCH Clinical Trials Coronary Computed Tomography Angiography

    E-Print Network [OSTI]

    CLINICAL RESEARCH Clinical Trials Coronary Computed Tomography Angiography for Early Triage computed tomography angiography (CTA) in patients with acute chest pain. Background Triage of chest pain disease (CAD), 31% had nonobstructive disease, and 19% had inconclusive or positive computed tomography

  11. 4.510 Digital Design Fabrication, Fall 2005

    E-Print Network [OSTI]

    Sass, Lawrence

    This class serves as an introductory subject in advanced computing, rapid prototyping, and CAD/CAM fabrication for architects. It focuses on the relationship between design and various forms of computer modeling as input, ...

  12. www.engineering.unl.edu http://ee.unl.edu EngInEERIng

    E-Print Network [OSTI]

    Farritor, Shane

    Laboratory with a Solar Panel Array and Wind Turbine · Integrated Circuit (VLSI) Design Laboratory and CAD of physics l 1 year of chemistry ACT composite of 24 or higher or SAT total score (Critical Reading and Math

  13. Reactive binders for metal parts produced by Three Dimensional Printing

    E-Print Network [OSTI]

    Yoo, Helen Jean

    1997-01-01T23:59:59.000Z

    Three Dimensional Printing (3DP) is a solid free form fabrication process which enables the construction of parts directly from computer-aided design (CAD) models. In the current process, metal parts are produced by printing ...

  14. Geometric Qualification of Production Parts

    SciTech Connect (OSTI)

    J. A. Bradley

    2005-09-30T23:59:59.000Z

    Computer Aided Design (CAD) is a commonly utilized software tool to conceptualize and create the part designs that are then used as input for product definition, or for the manufacture of production parts within commercial industry and, more specifically, at the Kansas City Plant (KCP). However, data created on CAD systems is, at times, unable to regenerate within the originating CAD system or be shared or translated for use by a dissimilar CAD system. Commercial software has been developed to help identify or qualify these difficulties that occur in the usage of this data. This project reviewed the different commercial software packages available for the activity of qualification and made recommendations for availability and use in the design processes at the KCP prior to the release of the product definition.

  15. UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    engineering (for example, computer-aided-design and manufacturing (CAD/CAM), energy engineering, mechanical1 UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering and Applied Mechanics Engineering and Applied Mechanics? ........................................................................3

  16. Computer Aided Design Tool for Electric, Hybrid Electric and Plug-in Hybrid Electric Vehicles

    E-Print Network [OSTI]

    Eskandari Halvaii, Ali

    2012-07-16T23:59:59.000Z

    This research is focused on designing a new generation of CAD tools that could help a ”hybrid vehicle” designer with the design process to come up with better vehicle configurations. The conventional design process for any type of hybrid...

  17. The Einstein Journal of Biology and Medicine 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

    E-Print Network [OSTI]

    Brown, Lucy L.

    of their index hospitalization. No known CAD was defined as: no known history of MI, percutaneous coronary intervention, or coronary artery bypass surgery. Additional exclusion criteria were: (1) cardiac

  18. SWEMP 2002, Cagliari, Italy SDPS for Windows: An Application for Subsidence Prediction, Optimum Mine Design and Environmental

    E-Print Network [OSTI]

    SWEMP 2002, Cagliari, Italy SDPS for Windows: An Application for Subsidence Prediction, Optimum the benefits of the MS Windows platform and has a direct interface to CAD software, thus facilitating input

  19. Analyzing and creating forms : rapid generation of graphic statics solutions through RhinoScript

    E-Print Network [OSTI]

    Shearer, Michael S. (Michael Scott)

    2010-01-01T23:59:59.000Z

    Graphic statics is a method of structural analysis which relies solely on geometric constructions to determine axial forces within members. Accordingly, any computer-aided drafting (CAD) program may be utilized in the ...

  20. Lung Nodule Detection in Screening Computed Tomography

    E-Print Network [OSTI]

    Gori, I; Cerello, P; Cheran, S C; De Nunzio, G; Fantacci, M E; Kasae, P; Masala, G L; Pérez-Martínez, A; Retico, A

    2007-01-01T23:59:59.000Z

    A computer-aided detection (CAD) system for the identification of pulmonary nodules in low-dose multi-detector helical Computed Tomography (CT) images with 1.25 mm slice thickness is presented. The basic modules of our lung-CAD system, a dot-enhancement filter for nodule candidate selection and a neural classifier for false-positive finding reduction, are described. The results obtained on the collected database of lung CT scans are discussed.

  1. SUPPORTING INFORMATION Dispersal ability rather than ecological tolerance drives differences in range size between

    E-Print Network [OSTI]

    Ribera, Ignacio

    SPA_ALM_GATA Spain Almería. Cabo de Gata. Salinas de Cabo de Gata 36.779 -2.233 1 SPA_BAL_CODO Spain Baleares. Ibiza. Salinas de Platja Codolar 38.860 1.375 4 SPA_BAL_FONT Spain Baleares. Mallorca. Salinas de SPA_CAD_HORT Spain Cádiz. El Bosque. Salinas de Hortales 36.738 -5.537 1 SPA_CAD_SMAR Spain Cádiz

  2. Building Information Modeling (BIM)-Based Daylighting Simulation and Analysis 

    E-Print Network [OSTI]

    Kota, S.; Haberl, J.S.; Clayton, M.; Yan, W.

    2014-01-01T23:59:59.000Z

    will be converted into daylighting models to run on the daylighting simulation engines. Once the architect defines the architectural model in CAD, a simulation expert creates the simulation input file to perform daylighting analysis. Each tool has its own way... the Radiance input file is created, different Radiance utilities are called using MS Windows BATCH scripting for doing a daylighting analysis [15]. In addition to AutoCAD, Radiance also has many utility programs that help in converting different geometry...

  3. A pipeline scheduling model

    E-Print Network [OSTI]

    Beatty, Thomas Melvin

    1975-01-01T23:59:59.000Z

    -four permutations contain only "l" through "4" in the first four d1gits. Unpacking of the permutations is easily achieved with an expression of 19 thc following type: I(I 4)=((Permutation/10 "" (5-14) ), 10), whe -e I 4 varies fz om 1 to the number of courses... depending upon type of leave and 45(ISNHERT ACIIDH NlliioFR F ii 4 M IO 05HJ(444 HA IH At 4 HORI I? UPI TON NUNREH CUSI la14 5 ~ usl IDIAL OliO SllHT ulVS oils HUDE 321 5 TUI Srlll EHO l, v IIOSDO Tloflo 0 0 30 0 'f VL DDIS olvs I 3 o a...

  4. The World of Dark Shadows Issue 30

    E-Print Network [OSTI]

    Multiple Contributors

    1982-01-01T23:59:59.000Z

    with Quentin on 3 trai n bridge and a fall to his. doom on the tra c ks b(~ low. It should be not e d that Al ex Stevens, t.he well-known and much loved DS stunt coordinator, ....as suppos ­ ed to make thi s spectacular fall stunt but finally refused whe n... director Dan Cur­ tis coul d only offer a stack of cardboard box,es instead of the usual inflated break-bag f or the trip doWTl. Tne fall in the finCll edited v ersi on took place off­ scr ee.n, wi th only the scre.om ing of the t~ vening traing harking...

  5. Regmi Research Series ,Year 18, December 31, 1986

    E-Print Network [OSTI]

    Regmi, Mahesh C

    1986-01-01T23:59:59.000Z

    78 81 84 86, 117, 133 . 158 90 92. 111 97 102 e Additional Du cuments vn !:;1l1yen u t' rkhnl i Rule in h.U:.lo.un Passport R\\ogu1~tion5 : ... D. 1800 T ! rnuf;tr Supply f~) r Rnnc P3.laces Add i tlonal Dc'cument s ...,n Kur;:~un It yel... Berekely, the 'Residen~,who ·.~las . at ;Ses:o..,Ue "whe,n tho rioting occur' .. 'ed, has tEi.ri4 ·thq. -a.n,iiy " ,rOaa~ns quie t, a pparently: accepting ,thQ ..riew ordep 'of ' tbirigs~ as pre sumably the ~ri tfs~ Gov...

  6. Baseload Nitrate Salt Central Receiver Power Plant Design Final Report

    SciTech Connect (OSTI)

    Tilley, Drake; Kelly, Bruce; Burkholder, Frank

    2014-12-12T23:59:59.000Z

    The objectives of the work were to demonstrate that a 100 MWe central receiver plant, using nitrate salt as the receiver coolant, thermal storage medium, and heat transport fluid in the steam generator, can 1) operate, at full load, for 6,400 hours each year using only solar energy, and 2) satisfy the DOE levelized energy cost goal of $0.09/kWhe (real 2009 $). To achieve these objectives the work incorporated a large range of tasks relating to many different aspects of a molten salt tower plant. The first Phase of the project focused on developing a baseline design for a Molten Salt Tower and validating areas for improvement. Tasks included a market study, receiver design, heat exchanger design, preliminary heliostat design, solar field optimization, baseline system design including PFDs and P&IDs and detailed cost estimate. The baseline plant met the initial goal of less than $0.14/kWhe, and reinforced the need to reduce costs in several key areas to reach the overall $0.09/kWhe goal. The major improvements identified from Phase I were: 1) higher temperature salt to improve cycle efficiency and reduce storage requirements, 2) an improved receiver coating to increase the efficiency of the receiver, 3) a large receiver design to maximize storage and meet the baseload hours objective, and 4) lower cost heliostat field. The second Phase of the project looked at advancing the baseline tower with the identified improvements and included key prototypes. To validate increasing the standard solar salt temperature to 600 °C a dynamic test was conducted at Sandia. The results ultimately proved the hypothesis incorrect and showed high oxide production and corrosion rates. The results lead to further testing of systems to mitigate the oxide production to be able to increase the salt temperature for a commercial plant. Foster Wheeler worked on the receiver design in both Phase I and Phase II looking at both design and lowering costs utilizing commercial fossil boiler manufacturing. The cost and design goals for the project were met with this task, but the most interesting results had to do with defining the failure modes and looking at a “shakedown analysis” of the combined creep-fatigue failure. A separate task also looked at improving the absorber coatings on the receiver tubes that would improve the efficiency of the receiver. Significant progress was made on developing a novel paint with a high absorptivity that was on par with the current Pyromark, but shows additional potential to be optimized further. Although the coating did not meet the emissivity goals, preliminary testing the new paint shows potential to be much more durable, and potential to improve the receiver efficiency through a higher average absorptivity over the lifetime. Additional coatings were also designed and modeled results meet the project goals, but were not tested. Testing for low cycle fatigue of the full length receiver tubes was designed and constructed, but is still currently undergoing testing. A novel small heliostat was developed through an extensive brainstorming and down select. The concept was then detailed further with inputs from component testing and eventually a full prototype was built and tested. This task met or exceeded the accuracy and structure goals and also beat the cost goal. This provides a significant solar field costs savings for Abengoa that will be developed further to be used in future commercial plants. Ultimately the $0.09/kWhe (real 2009 $) and 6,400 hours goals of the project were met.

  7. Phase II Final Report

    SciTech Connect (OSTI)

    Schuknecht, Nate [Project Manager; White, David [Principle Investigator; Hoste, Graeme [Research Engineer

    2014-09-11T23:59:59.000Z

    The SkyTrough DSP will advance the state-of-the-art in parabolic troughs for utility applications, with a larger aperture, higher operating temperature, and lower cost. The goal of this project was to develop a parabolic trough collector that enables solar electricity generation in the 2020 marketplace for a 216MWe nameplate baseload power plant. This plant requires an LCOE of 9¢/kWhe, given a capacity factor of 75%, a fossil fuel limit of 15%, a fossil fuel cost of $6.75/MMBtu, $25.00/kWht thermal storage cost, and a domestic installation corresponding to Daggett, CA. The result of our optimization was a trough design of larger aperture and operating temperature than has been fielded in large, utility scale parabolic trough applications: 7.6m width x 150m SCA length (1,118m2 aperture), with four 90mm diameter × 4.7m receivers per mirror module and an operating temperature of 500°C. The results from physical modeling in the System Advisory Model indicate that, for a capacity factor of 75%: The LCOE will be 8.87¢/kWhe. SkyFuel examined the design of almost every parabolic trough component from a perspective of load and performance at aperture areas from 500 to 2,900m2. Aperture-dependent design was combined with fixed quotations for similar parts from the commercialized SkyTrough product, and established an installed cost of $130/m2 in 2020. This project was conducted in two phases. Phase I was a preliminary design, culminating in an optimum trough size and further improvement of an advanced polymeric reflective material. This phase was completed in October of 2011. Phase II has been the detailed engineering design and component testing, which culminated in the fabrication and testing of a single mirror module. Phase II is complete, and this document presents a summary of the comprehensive work.

  8. Physical verification of contaminated sediment remediation: Capping, confined aquatic disposal, and enhanced natural recovery

    SciTech Connect (OSTI)

    Browning, D. [Science Applications International Corp., Bothell, WA (United States)

    1995-12-31T23:59:59.000Z

    Dredging and disposal in a confined aquatic disposal (CAD) site, capping with clean sediment, and natural recovery are commonly used, cost-effective remedial practices for contaminated sediments. Recent projects in Puget Sound, Washington and Southern California involved dredging and use of the material for capping and CAD fill. Both of these projects required physical monitoring to document sediment placement. Dredged sediments placed at these sites were optically identified using sediment vertical profile system (SVPS) photography. Optical criteria to distinguish cap/construction materials include grain-size, reflectance, and texture. Environmental parameters such as the extent and thickness of the CAD material or sediment cap deposits are evaluated against design and performance goals, typically the isolation of contaminants from the biologically active portion of the sediment column. Using SVPS, coring and other technologies, the stratigraphic contact between the capping/CAD sediment and the native sediment can be discerned. These measurements observations can ground-truth and be coupled with remote sensing to provide a more complete characterization of the entire remedial area. Physical isolation of the benthic community can be discerned by examining SVPS images for depth of bioturbation and sediment stratigraphy. On the periphery of cap/CAD deposits, thin layers of clean sediment ranging upwards from 1 mm thick can be identified. Dependent on the pre-remediation benthic community at the site, these thin layers of CAP/CAD sediment can be bioturbated by resident benthic infauna immediately after placement. The deposition and subsequent assimilation of the clean cap material into the contaminated sediments effectively reduces the concentration of contaminants in the biologically active zone thereby enhancing natural recovery in areas where regulatory criteria are focused on the biologically active zone.

  9. Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate; Southwestern Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01T23:59:59.000Z

    This document provides content for three areas of the Building America Solution Center. First, "Insulating Closed Crawlspace Walls and Band Joist Area" describes how to install rigid foam insulation on the interior perimeter walls and band joist area in closed crawlspace foundations of homes. Second, "Removing Construction Debris from Flexible Ducts" describes how to clean flexible ducts after construction or major renovation of a home to remove debris resulting from building materials, particularly airborne dust and particulates. Third, images, CAD drawings, and a case study illustrate right and wrong ways to apply polyethylene sheeting over aggregate. Similarly, a CAD drawing is included that illustrates the use of a concrete slab over polyethylene.

  10. An adaptive framework for 'single shot' motion planning 

    E-Print Network [OSTI]

    Jones, Christopher V

    2013-02-22T23:59:59.000Z

    with CAD models and Product Vtston, their CAD animation package. References (1) J. M. Ahuactzin and K. Gnpta. A motion planning based approach for inverse kinematics of redundant roboLs: The kinematic roadmap. In Proc. IRZZ Int. Conf. Robot. ztntom. (IC...'RA), pages 3609 ? 3614, 1997. 19 [2] N. M. Amato, O. B. Bayazit, L. K. Dale, C, V. Jones, and D. Valiejo. Choosing good distance metrics and local planners for probabilistic roadmap methods. In Proc. IEEE Iut. Conf. Robot. Autom. (ICRA), pages 630 ? 637...

  11. DEC VAX remote access to Applicon AGS data

    SciTech Connect (OSTI)

    Harris, D.D.

    1986-03-01T23:59:59.000Z

    This package was developed to eliminate transfer of magnetic tapes between the Applicon CAD system and the VAX-based CAD data post-processor. This was accomplished using a DECnet link between the VAX and the Applicon machine. DEC net is used to transfer data under control of programs running on the VAX A server program, written in MACRO-11, runs on the Applicon to provide access to the specialized Applicon file structure. Using this software package, a VAX user can view a directory of the Applicon database and transfer selected files from the Applicon to the VAX. (WRL)

  12. Development of Molten-Salt Heat Transfer Fluid Technology for Parabolic Trough Solar Power Plants - Public Final Technical Report

    SciTech Connect (OSTI)

    Grogan, Dylan C. P.

    2013-08-15T23:59:59.000Z

    Executive Summary This Final Report for the "Development of Molten-Salt Heat Transfer Fluid (HTF) Technology for Parabolic Trough Solar Power Plants” describes the overall project accomplishments, results and conclusions. Phase 1 analyzed the feasibility, cost and performance of a parabolic trough solar power plant with a molten salt heat transfer fluid (HTF); researched and/or developed feasible component options, detailed cost estimates and workable operating procedures; and developed hourly performance models. As a result, a molten salt plant with 6 hours of storage was shown to reduce Thermal Energy Storage (TES) cost by 43.2%, solar field cost by 14.8%, and levelized cost of energy (LCOE) by 9.8% - 14.5% relative to a similar state-of-the-art baseline plant. The LCOE savings range met the project’s Go/No Go criteria of 10% LCOE reduction. Another primary focus of Phase 1 and 2 was risk mitigation. The large risk areas associated with a molten salt parabolic trough plant were addressed in both Phases, such as; HTF freeze prevention and recovery, collector components and piping connections, and complex component interactions. Phase 2 analyzed in more detail the technical and economic feasibility of a 140 MWe,gross molten-salt CSP plant with 6 hours of TES. Phase 2 accomplishments included developing technical solutions to the above mentioned risk areas, such as freeze protection/recovery, corrosion effects of applicable molten salts, collector design improvements for molten salt, and developing plant operating strategies for maximized plant performance and freeze risk mitigation. Phase 2 accomplishments also included developing and thoroughly analyzing a molten salt, Parabolic Trough power plant performance model, in order to achieve the project cost and performance targets. The plant performance model and an extensive basic Engineering, Procurement, and Construction (EPC) quote were used to calculate a real levelized cost of energy (LCOE) of 11.50¢/kWhe , which achieved the Phase 2 Go/No Go target of less than 0.12¢/kWhe. Abengoa Solar has high confidence that the primary risk areas have been addressed in the project and a commercial plant utilizing molten salt is economically and technically feasible. The strong results from the Phase 1 and 2 research, testing, and analyses, summarized in this report, led Abengoa Solar to recommend that the project proceed to Phase 3. However, a commercially viable collector interconnection was not fully validated by the end of Phase 2, combined with the uncertainty in the federal budget, forced the DOE and Abengoa Solar to close the project. Thus the resources required to construct and operate a molten salt pilot plant will be solely supplied by Abengoa Solar.

  13. EvoFab: A Fully Embodied Evolutionary John Rieffel and Dave Sayles

    E-Print Network [OSTI]

    Rieffel, John

    prototpying 3-D printers, an increasing number of evolved designs have been fabricated in the real world;2 Rieffel & Sayles were 3D CAD models which could then be printed directly by rapid protyping 3D printers", drew a 3-D model of the antenna. Fitness was determined by measuring the performance of the design

  14. Acronyms and Abbreviations xxiii NSLS-II Conceptual Design Report

    E-Print Network [OSTI]

    Ohta, Shigemi

    ­SR booster-to-storage ring BT beamline team CA channel access CAD computer aided design CCG cold cathode multiplier CESR Cornell Electron Storage Ring CMLOG operator electronic log CMR colossal magnetoresistance manager EELS electron energy loss spectroscopy EIA Electronic Industries Alliance ELF extremely low

  15. Role of integrin-linked kinase for functional capacity of endothelial progenitor cells in patients with stable coronary artery disease

    SciTech Connect (OSTI)

    Werner, Christian; Boehm, Michael [Klinik fuer Innere Medizin III-Kardiologie, Angiologie, Internistische Intensivmedizin, Universitaetsklinikum des Saarlandes, 66421 Homburg/Saar (Germany); Friedrich, Erik B. [Klinik fuer Innere Medizin III-Kardiologie, Angiologie, Internistische Intensivmedizin, Universitaetsklinikum des Saarlandes, 66421 Homburg/Saar (Germany)], E-mail: efriedrich@med-in.uni-saarland.de

    2008-12-12T23:59:59.000Z

    Number and function of endothelial progenitor cells (EPCs) are down-regulated in patients with coronary artery disease (CAD). Integrin-linked kinase (ILK) is a signal and adaptor protein that regulates survival of mature endothelial cells and vascular development. Here we show that EPC dysfunction in patients with CAD is paralleled by down-regulation of ILK while restoration of ILK expression rescues the migratory defect of CAD-EPCs. Human EPCs transduced with dominant-negative ILK (DN-ILK) display significantly reduced expression of CD34{sup +}/VEGFR-2{sup +}, DiI-Ac-LDL uptake, and Ulex europaeus lectin binding. Mechanistically, DN-ILK-transfected EPCs are characterized by decreased proliferation, while proliferation is increased in wild-type ILK-transfected EPCs. These effects are paralleled by changes in cyclin D1 expression, colony forming units, and cytoskeletal rearrangement. Functionally, ILK is necessary and sufficient for SDF-1-triggered migration and adhesion in EPCs. These data extend current knowledge about the role of ILK in EPC biology and implicate ILK as a therapeutic target in CAD.

  16. 2001 by M. Kosticwww.kostic.niu.edu Ch.3: Measurement System Behavior

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    1 ©2001 by M. Kosticwww.kostic.niu.edu Ch.3: Measurement System Behavior · Ch.3: Measurement System) · Magnitude ratio (2nd O.S.) · Phase shift (2nd O.S.) · 2nd Order System (MathCAD) · The End ©2001 by M. Kosticwww.kostic.niu.edu Ch.3:MeasurementSystem Behavior #12;2 ©2001 by M. Kosticwww

  17. Efficient Model Selection for Regularized Linear Discriminant Analysis

    E-Print Network [OSTI]

    Ye, Jieping

    University Tempe, AZ 85287 jieping.ye@asu.edu Tao Xiong University of Minnesota Minneapolis, MN 55455 txiong of Minnesota Minneapolis, MN 55455 janardan@cs.umn.edu Jinbo Bi CAD group, Siemens Medical Solutions, Inc. Malvern, PA 19355 jinbo.bi@siemens.com Vladimir Cherkassky University of Minnesota Minneapolis, MN 55455

  18. A Prototype Robot Speech Interface with Multimodal Feedback Mathias Haage+

    E-Print Network [OSTI]

    Nugues, Pierre

    of industrial robot arms. The aim of the prototype is to develop a speech system for designing robot trajectories that would fit well with current CAD paradigms. 1 Introduction Industrial robot programming developed for studying multimodal user interfaces in the context of industrial robot programming [5

  19. Quidi Vidi Lake Hydro Power Demonstration Project

    E-Print Network [OSTI]

    Bruneau, Steve

    Plant Capex CAD 150,000$ Plant Opex at 10% Revenue 15,000$ Energy Price / kWH 0.090$ Plant Capacity CAPEX OPEX Revenue Balance Cumulative Balance 2008 150,000$ 15,000$ 37,449$ (127,551)$ (127,551)$ 2009

  20. An EIE/Altener project Co-funded by the EU Commission

    E-Print Network [OSTI]

    , of course, poses in a competitive situation biogas technology and thus CAD. The extensive and detailed of PROBIOGAS is to asses the economic, environmental and energy aspects of the biogas production by centralised for the implementation of biogas systems in those areas and will help identify and remove the existing non technical

  1. "Parametric Process Optimization to Improve the Accuracy of Rapid Prototyped Stereolithography Parts," Jack Zhou, Dan Herscovici & Calvin Chen, International Journal of Machine Tools and Manufacture, No.40, 1-17,1999

    E-Print Network [OSTI]

    Zhou, Jack

    are integrated manufacturing processes that include CAD/CAM, control of laser devices, materials, manufacturing Parts," Jack Zhou, Dan Herscovici & Calvin Chen, International Journal of Machine Tools and Manufacture defaulted and user selected manufacturing parameters. Accuracy is evaluated by dimensional errors, form

  2. Xs are for Trajectory Evaluation, Booleans are for Theorem Proving

    E-Print Network [OSTI]

    Melham, Tom

    . Aagaard,1 Thomas F. Melham,2 John W. O'Leary1 1 Strategic CAD Labs 2 FATA Research Group Intel Corporation and model checkers. #12;M. D. Aagaard, T. F. Melham and J. W. O'Leary, `Xs are for Trajec- tory Evaluation. Melham, and J. W. O'Leary, `Xs are for Trajectory Evaluation, Booleans are for Theo- rem Proving

  3. Data-based Motion Prediction Julian J. Faraway

    E-Print Network [OSTI]

    Faraway, Julian

    prediction. Many vehicle interiors and workplaces are first designed using a CAD system. Physical prototypes an authentically moving virtual human within soft- ware such as Jack ([2]) helps the designer detect prob- lems of motion capture data required. Even so, the methodology pre- 1 #12;sented below is generalizable and would

  4. Guest Editor's Introduction: Hardware-Soft'Ware Codesign

    E-Print Network [OSTI]

    De Micheli, Giovanni

    establishing an integmted design methodology for hardware and software systems that could be supported~ Guest Editor's Introduction: Hardware-Soft'Ware Codesign Giovanni De AficMli Stanfcxd the chip to the digital system level, and to CAD vendors who hope to extend their customer base

  5. RHIC Operation and Plans for Upgrades Wolfram Fischer

    E-Print Network [OSTI]

    Ã? design 10Ã? achieved #12;Wolfram Fischer 7 Achieved parameters Mode No of bunches Ions/bunch [ 1 0 9] enhanced luminosity 60e9 Au intensity design luminosity Beamexperiments #12;Wolfram Fischer 10 RHIC Run-41 RHIC Operation and Plans for Upgrades Wolfram Fischer C-AD Machine Advisory Committee Meeting 10

  6. Class D IOT Transmitter Concept Advantages Challenges

    E-Print Network [OSTI]

    Anlage, Steven

    -Beam and Multiple-Beam Inductive Output Tubes" PAC 2009, Vancouver, CA · Input RF modulates grid voltage. al, "Modeling and Design of High-Power Single-Beam and Multiple-Beam Inductive Output Tubes" PAC 2009 workstation Vacuum processing ovens Computer DAQ/ control/ CAD/CAM facility fiber optic comm. Magnet systems

  7. Vladimir Litvinenko, January 23,2006, RHIC Machine Advisory Committee EBIS Booster

    E-Print Network [OSTI]

    Vladimir Litvinenko, January 23,2006, RHIC Machine Advisory Committee Linac EBIS Booster AGS RHIC, Brookhaven National Laboratory, Upton, NY, USA #12;Vladimir Litvinenko, January 23,2006, RHIC Machine Electron cooling for RHIC II - Wrap-up Vladimir N. Litvinenko for C-AD team Collider Accelerator Department

  8. Visit to Toyota July 31, 1991 My host was Mr Y. Kuranaga, head of Development Div 1 of Information

    E-Print Network [OSTI]

    Whitney, Daniel

    with several companies such as Nihon Unisys to support and sell its CAD software to Toyota's vendors programming, and machining process planning. Toyota last made a clay model as primary design data input three-view sketches, converting them to 3D models and refining these, and making a 1/5th scale clay

  9. Late breaking results: ARPipes: Aligning Virtual models to their Physical Counterparts with Spatial Augmented Reality

    E-Print Network [OSTI]

    Thomas, Bruce

    models to their physical representation. ARPipes provides both a visual overlay of physical plant. The paper describes the process of employing original CAD data of plant equipment and transforming the data with maintenance tasks in fabrication plants. This paper presents the first step in the AR process, the visual

  10. ME 4210: Manufacturing Processes and Engineering Prof. J.S. Colton GIT 2011

    E-Print Network [OSTI]

    Colton, Jonathan S.

    ME 4210: Manufacturing Processes and Engineering Prof. J.S. Colton © GIT 2011 1 Rapid Prototyping ver. 1 #12;ME 4210: Manufacturing Processes and Engineering Prof. J.S. Colton © GIT 2011 2 Process · Additive fabrication ­ material is added, not removed · Direct fabrication from a CAD file · Layered

  11. Monolithic Design and Fabrication of a 2-DOF Bio-Inspired Leg Transmission

    E-Print Network [OSTI]

    Wood, Robert

    and manufacturing rules; consequently the addition of assembly scaffolds adds too much complexity to the average manufacturing techniques and monolithic, "pop- up" assembly methods. This is enabled through a new design suite called "popupCAD", a computer-aided design tool which anticipates laminate manufacturing methods

  12. Investigation of residual stresses induced during the selective laser melting process

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    jean-claude.boyer@insa-lyon.fr Keywords: Selective laser melting, layer additional method, Residual stresses. Abstract. The selective laser melting process (SLM), belonging to the family of additive manufacturing processes, can create complex geometry parts from a CAD file. Previously, only prototypes were

  13. ANALYSIS OF TRITIUM/DEUTERIUM RETENTION AND PERMEATION IN FW/DIVERTOR INCLUDING GEOMETRIC AND TEMPERATURE OPERATING FEATURES

    E-Print Network [OSTI]

    Abdou, Mohamed

    Department, UCLA, Los Angeles, CA 90095, USA ying@fusion.ucla.edu Available data and mathematical materials were implemented in the commercial code COMSOL Multiphysics. The goal is to develop a CAD-based hydrogen /tritium species and chemical compositions. As the data have shown, tritium has a higher

  14. Multimed Tools Appl DOI 10.1007/s11042-011-0731-3

    E-Print Network [OSTI]

    Skopal, Tomas

    database can be used to support CAD tools. For example, standard parts in a manufacturing company can together to form the product. If some of these parts are similar to one of the standard parts already designed, then the possible replacement of the original part with the standard part can lead to a reduction

  15. Approved Module Information for ME1502, 2014/5 Module Title/Name: Prototyping and Development Module Code: ME1502

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    to manage a major group project. * Basic electromechanical skills * The role of standard parts electromechanical prototypes. * An ability to use simple CAD in the design process as a means of communication in which available: BEng/MEng Mechanical Engineering. BEng/MEng Electromechanical Engineering. BEng Design

  16. Content-Based 3D Object Retrieval Benjamin Bustos, Daniel Keim, Dietmar Saupe, Tobias Schreck

    E-Print Network [OSTI]

    Reiterer, Harald

    arises in a number of prac- tical fields. Example application domains include computer aided design/computer databases are also used to support CAD tools which have many applications in industrial design and manufacturing, and the re-usage of standard parts can lead to a reduction of production costs. Over the last

  17. STUDY AND DEVELOPMENT OF MECHANICAL 3D STANDARD PARTS LIBRARY

    E-Print Network [OSTI]

    Wu Yang-dong; Xie Qing-sheng; Qi Guo-ning; Lu Yu-jun

    technology included variant design, tabular layouts of article characteristics and parametric cad system, the method and key technology to construct parametric mechanical 3D standard parts library was introduced. Engineer could build mechanical standard part through this system automatically and improve the

  18. Computing with ThingsComputing with Things Small, Wet and RandomSmall, Wet and Random

    E-Print Network [OSTI]

    Minnesota, University of

    . ­ "Novel functionality through design". ­ Repositories of standardized parts. · Driven by experimental/output specification. · CAD tools are not part of the design process; they are the design process. Building Digital ... #12;Building Bridges "Think of how engineers build bridges. They design quantitative models to help

  19. Department of Mechanical Engineering Fall 2011 Pratt & Whitney Engine Low Pressure Turbine Vane Cluster Analysis

    E-Print Network [OSTI]

    Demirel, Melik C.

    Turbine Vane Cluster Analysis Overview The goal was to provide Pratt & Whitney with a detailed finitePENNSTATE Department of Mechanical Engineering Fall 2011 Pratt & Whitney ­ Engine Low Pressure 3D cloud data to useable CAD model Use finite element analysis to determine the areas of highest

  20. The Laboratory Environment of the URI Integrated Computer Engineering Design (ICED) Curriculum

    E-Print Network [OSTI]

    Uht, Augustus K.

    The Laboratory Environment of the URI Integrated Computer Engineering Design (ICED) Curriculum continuity. URI's new ICED undergraduate cur­ riculum addresses these issues through a comprehensive multi environment of the ICED curriculum. The pedagogical use of industrial CAD logic design and synthesis tools

  1. This research was supported by the National Science Foundation under Grant MIP-9223812.

    E-Print Network [OSTI]

    Barroso, Luiz André

    developments on this project will be posted on WWW at http://www.usc.edu/dept/ceng/dubois/RPM.html. The Design emulation engines. In addi- tion, improvements in Computer-Aided Design (CAD) tools, mainly in synthesis tools, greatly simplify the design of large circuits. The RPM (Rapid Prototype Engine

  2. Extension des mthodes DFM pour l'industrialisation de produits microlectroniques

    E-Print Network [OSTI]

    Boyer, Edmond

    against resulted specs and models are frozen and distributed to the CAD department for inclusion in design and the test structures PCS/M (process control/monitoring structure) could be present in the horizontal développement (Time to Market) et les montées en cadence (Time-to-Volume), le DFM (Design for Manufacturing

  3. Department of Computer Science University of North Carolina at Chapel Hill February 2004 MMR: Massive Model Rendering System

    E-Print Network [OSTI]

    Whitton, Mary C.

    or action. · Scalability. The system should require a human set-up that is at most sublinear in the number-time rendering system. Figure 1. A view of our 15-million polygon model of a coal-fired power plant. The MMR: Massive Model Rendering System The Challenge Overview. Computer-aided design (CAD) applications

  4. Collaborative 3D Visualization on Large Screen Displays

    E-Print Network [OSTI]

    Barbosa, Alberto

    reality (VR) system designed to support collaborative visualization of 3D environments, applied in collaborative work. This paper presents a system that uses remotely located wall sized displays, to offer immersive, interactive collaborative visualization and review of 3D CAD models for engineering applications

  5. Digital Nano-CMOS VLSI Design Courses in Electrical and Computer Engineering Through Open-Source/Free Tools

    E-Print Network [OSTI]

    Mohanty, Saraju P.

    -Source/Free Tools Elias Kougianos1, Saraju P. Mohanty2, and Priyadarsan Patra3 NanoSystem Design Laboratory (NSDL such as Digital Signal Pro- cessing, Control Systems, Communications, Microprocessors etc. Even though all they are parked are expensive. The skilled man power as a CAD support engineer (with system adminstration skills

  6. Mockup Builder: Direct 3D Modeling On and Above the Surface in a Continuous Interaction Space

    E-Print Network [OSTI]

    Casiez, Géry

    and manipulate three-dimensional shapes. Another important ob- stacle, lies in that powerful modeling systems popularity of Virtual Environments, they have yet to replace desktop CAD systems when it comes to modeling 3D with models through widgets to control their parameters. However, new and affordable technologies

  7. Component Guide for Elective Courses Updated September 2013 Credit Hours

    E-Print Network [OSTI]

    Mountziaris, T. J.

    525 Geotechnical Site Investigations 2 1 CE-ENGIN 527 Earthquake Engineering 2 1 CE-ENGIN 535 Matrix. Design CE-ENGIN 211 Perspectives on the Evolution of Structures 0 0 CE-ENGIN 275 Introduction to AutoCAD 0 0 CE-ENGIN 290B History and Heritage of Civil and Environmental Engineering 0 0 CE-ENGIN 410

  8. Observation of Phosphorylation Site-Specific Dissociation of Singly

    E-Print Network [OSTI]

    Kim, Myung Soo

    recorded at high internal energy such as in high-energy CAD and UV-PD. Here, new series of se- quence ions, become dominant. Biemann [13] suggested that dissociation at high internal energy is initiated by C ­CO are discussed. (J Am Soc Mass Spectrom 2010, 21, 53­59) © 2010 American Society for Mass Spectrometry T andem

  9. RAPID COMMUNICATIONS IN MASS SPECTROMETRY Rapid Commun. Mass Spectrom. 2005; 19: 32483252

    E-Print Network [OSTI]

    Kim, Myung Soo

    to be that photofragment ions generated at this wavelength are similar to those from low- and high-energy CAD, and are thusRAPID COMMUNICATIONS IN MASS SPECTROMETRY Rapid Commun. Mass Spectrom. 2005; 19: 3248 of singly protonated peptides at 193 nm investigated with tandem time-of-flight mass spectrometry Jeong Hee

  10. RAPID COMMUNICATIONS IN MASS SPECTROMETRY Rapid Commun. Mass Spectrom. 2004; 18: 27062712

    E-Print Network [OSTI]

    Kim, Myung Soo

    mass spectrometry.7,8 The internal energy that ions acquire in the MALDI process or via colli- sional of high quality. Tandem mass spectrometry utilizing photodissociation (PD) with ultraviolet (UV) radiation be a viable alternative to CAD for tandem mass spectrometry of large molecules because the energy requirement

  11. National Aeronautics and Space Administration November 2010

    E-Print Network [OSTI]

    of Applied Multiphase Thermal Engineering Nova Scotia CAD/CAM Centre Renewable Energy Storage Lab GRADUATE generation) Energy and Heat Transfer (renewable energy storage, energy conversion and management, heat, Phase Change and multiphase process, Renewable energy (Solan, Tidal), Energy Storage, Conversion

  12. Journal of Machine Learning Research 11 (2010) 1297-1322 Submitted 9/09; Revised 2/10; Published 4/10 Learning From Crowds

    E-Print Network [OSTI]

    Zhao, Linda

    2010-01-01T23:59:59.000Z

    /10 Learning From Crowds Vikas C. Raykar VIKAS.RAYKAR@SIEMENS.COM Shipeng Yu SHIPENG.YU@SIEMENS.COM CAD and Knowledge Solutions (IKM CKS) Siemens Healthcare Malvern, PA 19355 USA Linda H. Zhao LZHAO GERARDO.HERMOSILLOVALADEZ@SIEMENS.COM Charles Florin CHARLES.FLORIN@SIEMENS.COM Luca Bogoni LUCA.BOGONI@SIEMENS

  13. Statistical modeling of medical indexing processes for biomedical knowledge information discovery from text

    E-Print Network [OSTI]

    Tresp, Volker

    Munich, Germany bundschu@dbs.ifi.lmu.de Mathaeus Dejori Integrated Data Systems Dep. Siemens Corporate Research 755 College Road East Princeton, NJ 08540, USA mathaeus.dejori@siemens.com Shipeng Yu CAD & Knowledge Solutions Siemens Medical Solutions 51 Valley Stream Parkway Malvern, PA 19355, USA shipeng.yu@siemens

  14. Robust Multi-Task Learning with t-Processes shipeng.yu@siemens.com

    E-Print Network [OSTI]

    Tresp, Volker

    Robust Multi-Task Learning with t-Processes Shipeng Yu shipeng.yu@siemens.com CAD and Knowledge Solutions, Siemens Medical Solutions, Malvern, PA 19355, USA Volker Tresp volker.tresp@siemens.com Corporate Technology, Siemens AG, Munich 81730, Germany Kai Yu kyu@sv.nec-labs.com NEC Laboratories America, Cupertino

  15. A Requirements Analysis for Videogame Design Support Tools

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    A Requirements Analysis for Videogame Design Support Tools Mark J. Nelson School of Interactive fields, such as architecture and mechanical design, that have CAD tools to support designers in reasoning about and visualizing designs, game designers have no tools for reasoning about and visualizing systems

  16. The effect of dietary erythromycin and force molting on the reproductive performance of heavy breed hens

    E-Print Network [OSTI]

    Noriega Coello, Carlos

    1969-01-01T23:59:59.000Z

    feed less e& fic: en41y 4han those from dame fed the erv th: o&' yci n fre. , di ct. 7orce mol. ing oi' the breeder hens sbo. tip; ?'!; -::: L!. :e cv sc i; o cgg ?"rodnc4 Lo!& . '. e: . 14ed in b "4'. , er ? le:I. cx!cy of f cad 1&. 41 ' ' 7;! 41...

  17. Complete CFD analysis of a Velocity XL-5 RG with flight-test verification

    E-Print Network [OSTI]

    Schouten, Shane Michael

    2008-10-10T23:59:59.000Z

    of the canard wake and Computational Fluid Dynamics (CFD) were used to provide a clear picture of the flowfield around the aircraft. The first step of the project consisted of making a 3-D CAD model of the aircraft. This model was then used for the CFD...

  18. Design, Analysis, and Simulation of Rocket Propulsion System

    E-Print Network [OSTI]

    Kulhanek, Sarah Logan

    2012-08-31T23:59:59.000Z

    . The program currently provides a symbolic link in the form of a button on the output page which will open Unigraphics NX CAD program. The post-processing simulation of the rocket propulsion system is done in a computational fluid dynamics (CFD) program...

  19. Nonlinear Multiple Kernel Learning via Mixture of Probabilistic Kernel Discriminant Analysis

    E-Print Network [OSTI]

    Liu, Huan

    .ye@asu.edu Computer Science & Engineering Arizona State University Shipeng Yu shipeng.yu@siemens.com CAD and Knowledge Solutions Siemens Medical Solutions USA, Inc. Huan Liu huan.liu@asu.edu Computer Science & Engineering, and in the transformed space, instances can be better separated. A kernel can be constructed in the transformed space

  20. On the Equivalence Between Canonical Correlation Analysis and Orthonormalized Partial Least Squares

    E-Print Network [OSTI]

    Ye, Jieping

    State University CAD and Knowledge Solutions, Siemens Medical Solutions USA, Inc. §{sun.liang, shuiwang.ji, jieping.ye}@asu.edu; shipeng.yu@siemens.com Abstract Canonical correlation analysis (CCA) and partial-dimensional variables. CCA seeks a pair of lin- ear transformations, one for each set of variables, such that the data

  1. DUFFY, Alex Department of Design, Manufacture and Engineering

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    development requirements within Concurrent Engineering (CE). The design teams do not wait to get the resultDUFFY, Alex Department of Design, Manufacture and Engineering Management University of Strathclyde.troussier@utt.fr Abstract-- Computer Aided Design (CAD) and Computer Aided Engineering (CAE) models are often used during

  2. United Nations/Nigeria Workshop on Space Law "Meeting international responsibilities and

    E-Print Network [OSTI]

    Glass, Ian S.

    United Nations/Nigeria Workshop on Space Law "Meeting international responsibilities and addressing domestic needs" 21-24 November 2005 Abuja, Nigeria Rockview Hotel (Royale), Plot 374/789 Cad Zone A8, Adetokunbo Ademola Crescent, Wuse II Abuja, Nigeria PRELIMINARY DRAFT PROGRAMME (as at 03 August 2005

  3. Doi: 10.2967/jnumed.113.119842 Published online: December 12, 2013.

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    | Society of Nuclear Medicine and Molecular Imaging is published monthly.The Journal of Nuclear Medicine of Applied Sciences, Delft University of Technology, Delft, The Netherlands; 6Department of Nuclear Medicine/SPECT MPI image fusion system over con- ventional side-by-side analysis in patients with suspected CAD

  4. A Genetic Algorithm for Packing ThreeDimensional NonConvex Objects Having Cavities and Holes

    E-Print Network [OSTI]

    Coello, Carlos A. Coello

    packing, non­ convex objects, selective laser sintering, rapid proto­ typing 1 INTRODUCTION 1.1 SELECTIVE, the selective laser sintering (SLS) machine produces parts directly from CAD files through an additive manufac­ tions of parts at each layer. Selective laser sintering uses fine, heat­fusible powder to build a part

  5. 364 IEEETFL4NSACTIONSON INDUSTRIALELECTRONICS, VOL 43, NO 3, JUNE 1996 Integration of Vision and Laser Dis

    E-Print Network [OSTI]

    Zheng, Yuan F.

    of the digitization can be improved. Experimental results are provided to verify the proposed method. I. INTRODUCTION, the prototypes are still made of clay or wood solely by human hands and thus the corresponding CAD modelsManufactunng at The Ohio State University The authors are with the Department of Electncal Engineering,The Ohio State

  6. Evaluation of Power-Constant Dual-Rail Logic as a Protection of Cryptographic Applications in FPGAs

    E-Print Network [OSTI]

    Boyer, Edmond

    -end applica- tions that require embedded cryptography. These devices must thus be protected against physical attacks. However, unlike ASICs, in which custom and backend-level counter-measures can be devised, FPGAs-rail logic. First of all, we report a CAD methodology for achieving WDDL in FPGA. An experimental security

  7. THE ERL HIGH-ENERGY COOLER FOR RHIC* I. Ben-Zvi** for the electron cooling team***,

    E-Print Network [OSTI]

    ]. The design evolved during the past 5 years. The present design will use classical (non-magnetized) electron presents many challenges to the design of the cooler. The cooling is slowed down by the high- energyTHE ERL HIGH-ENERGY COOLER FOR RHIC* I. Ben-Zvi** for the electron cooling team***, C-AD, BNL

  8. Three Dimensional Graphics Algorithms on the MicroGrain Array ProcessorII

    E-Print Network [OSTI]

    Bishop, Benjamin

    Three Dimensional Graphics Algorithms on the Micro­Grain Array Processor­II Benjamin Bishop Yan The Pennsylvania State University University Park, PA 16802 Abstract Three­dimensional graphics processors play tools, architectural CAD tools, and physical modeling. But high per­ formance graphics subsystems

  9. 159.235 Graphics 1 159.235 Graphics & Graphical

    E-Print Network [OSTI]

    Hawick, Ken

    159.235 Graphics 1 159.235 Graphics & Graphical Programming Lecture 1 - GRAPHICS Overview #12;159.235 Graphics 2 What's this course all about? Not! Paint and Imaging packages (Adobe Photoshop) Cad packages (Digimation) Graphics APIs (OpenGL) Graphics Modelling and Languages (RenderMan) #12;159.235 Graphics 3 What

  10. Integration Methodologies for Disparate Software Packages with an Emphasis on Usability

    E-Print Network [OSTI]

    Grout, Vic

    on electric motor design is presented for which early results are encouraging. Future development of CAD software packages supplied to the electric motor industry by Motor Design Ltd. Each package. Introduction and Background An ever-increasing number of software systems are becoming available to industry

  11. Invited key-note paper at the International Conference on Shape Modeling and Applications, Aizu-Wakamatsu, Japan, IEEE Computer Society Press, pp. 64-70, March 3-6, 1997.

    E-Print Network [OSTI]

    Rossignac, Jarek

    Georgia Tech: GIT-GVU-96-29 1 The 3D Revolution: CAD Access for All! Jarek Rossignac GVU Center & College. Although expensive to generate and poten- tially very valuable in many product related activities, 3D workstations. Intranet access, popular 3D exchange formats, and affordable 3D graphics chips permit to download

  12. Advanced Industrial Archaeology: A new reverse-engineering process for contextualizing and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Advanced Industrial Archaeology: A new reverse-engineering process for contextualizing.bernard@irccyn.ec-nantes.fr, michel.cotte@univ-nantes.fr Abstract Since virtual engineering has been introduced inside industries. Keywords reverse-engineering, 3D digitalization, CAD, Advanced Industrial Archaeology, technical heritage 1

  13. MAGNET DIVISION: A LOOK AHEAD

    E-Print Network [OSTI]

    Ohta, Shigemi

    ;SAFETY: 1279 DAYS = 3.5 YEARS WITHOUT A LOST TIME ACCIDENT CONGRATULATIONS KEEP UP THE GOOD WORK #12; went well. 4 #12;Nuclear Physics Addition of $50M to DOE Nuclear Physics budget Year-long process to develop a Long Range Plan for Nuclear Physics has recently started C-AD's development of an affordable

  14. Computer-Aided Design 43 (2011) 13191321 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Hahmann, Stefanie

    2011-01-01T23:59:59.000Z

    Computer-Aided Design 43 (2011) 1319­1321 Contents lists available at SciVerse Science invited plenary talks by academic and industrial luminaries, Ken Clarkson (IBM Almaden Research CenterDirect Computer-Aided Design journal homepage: www.elsevier.com/locate/cad Preface The 2011 SIAM Conference

  15. Viability of Photogrammetry for As-built Surveys without Control Points in Building Renovation Projects

    E-Print Network [OSTI]

    Liu, Yang

    2013-07-23T23:59:59.000Z

    In recent years, it is becoming more and more common to utilize 3D modeling technology to reconstruct cultural heritages. The most common way to deliver the 3D model of an existing object is based on hands-on surveys and CAD tools which could...

  16. Annual Report of the EURATOM/CCFE Fusion Programme 2011/12 3 JET Operations

    E-Print Network [OSTI]

    of the JET machine not being exactly as the drawings and CAD models 3JETOperations #12;Annual ReportAnnual Report of the EURATOM/CCFE Fusion Programme 2011/12 3.1 3 JET Operations 3 JET Operations 3 Associate Leader for JET. During the period covered by this report, the major shutdown for the installation

  17. Automated Interpretation of Myocardial SPECT Perfusion Images Using Artificial Neural Networks

    E-Print Network [OSTI]

    Peterson, Carsten

    Automated Interpretation of Myocardial SPECT Perfusion Images Using Artificial Neural Networks Dan. Conclusion: Artificial neural networks can detect CAD in myocardial bull's-eye scintigrams with such a high significant potential. Key Words: diagnosis; computer-assisted; artificial intelligence; neural networks

  18. The Chemistry of Atherogenic High Density Lipoprotein 

    E-Print Network [OSTI]

    Moore, D'Vesharronne J.

    2012-07-16T23:59:59.000Z

    , and understanding the biological functions of a novel atherogenic HDL phenotype in individuals with CAD. Through the implementation of the aforementioned methodologies, new isoforms of apoC-I were identified. MALDI-MS, detected a shifting of approximately 90 Da...

  19. Engineering & Technology News | Industrial News Buzz Flexible electronics could help put Arrhythmic hearts back on rhythm

    E-Print Network [OSTI]

    Rogers, John A.

    hearts back on rhythm Home Engineering Store Products & Services Engineering Forum CAD Forum Engineering at Engineers Store? 6 7/8" Adjustable Male Human Figure Template $12.95 Engineers Edge - Arrhythmic hearts soon Translational Medicine. Several treatments are available for hearts that dance to their own tempo, ranging from

  20. Joint ECE and CS Seminar Time and Location: Friday Mar. 8, 2013 at 11am in CSB 130

    E-Print Network [OSTI]

    : Randomized Motion Planning: From Intelligent CAD to Computer Animation to Protein Folding Speakers: Nancy (virtual prototyping and training), and even computational biology and chemistry (protein folding and drug our work related to virtual prototyping, computer animation, and protein folding. For virtual

  1. (Created 5/01; Revised 5/03, 4/06, 5/08) UNL Environmental Health and Safety (402) 472-4925 http://ehs.unl.edu

    E-Print Network [OSTI]

    Farritor, Shane

    insulated. · Lithium batteries are commonly used in electronic devices such as cameras and are often used as an alternative to alkaline batteries. Lithium batteries may be similar in appearance to alkaline batteries batteries are usually one of the following varieties: Nickel- cadmium (Ni-Cad), lead-gel, or lithium

  2. Batteries, mobile phones & small electrical devices

    E-Print Network [OSTI]

    , mobile phones and data collection equipment. Lithium Ion batteries are used in mobile phones, laptopsBatteries, mobile phones & small electrical devices IN-BUILDING RECYCLING STATIONS. A full list of acceptable items: Sealed batteries ­excludes vented NiCad and Lead acid batteries Cameras Laser printer

  3. Database, Spatial Spatial databases are the foundation for computer-based applications involving spatially

    E-Print Network [OSTI]

    managed using a particular type of software called a database management system (DBMS) that allows, leading to spatio-temporal databases when geometric evolutions are supported. Spatial databases can be implemented in a GIS, in a computer-assisted design (CAD) system coupled with a DBMS, in a universal server

  4. 2010 WINNING CASE STUDY Platinum Award and Operational Performance in the Private Sector

    E-Print Network [OSTI]

    (PLM) consultants who helped Brawn GP's in-house PLM team of just four people with this end Management (PLM) is crucial ­ managing each component from conception through design, modelling, manufacture the organisation, Brawn GP was committed to migrating to a new PLM and computer-aided design and manufacturing (CAD

  5. CENTRALE PARIS SUMMER SCHOOL 2011 Collaborative and Computer Aided Design

    E-Print Network [OSTI]

    Paragios, Nikos

    activities at Centrale Paris · Collaborative CAD Design · Product Lifecycle Management Course · X://cao.etudes.ecp.fr/ - french speaking Executive education Head of Centrale Paris Executive Education in Product Life-cycle. Morenton, V. Cheutet, S. Lamouri - International Conference on Product Lifecycle Management, July 2008

  6. Supplementary Material The pumping lid: Investigating multi-material 3D printing for equipment-free, programmable

    E-Print Network [OSTI]

    Ismagilov, Rustem F.

    Supplementary Material The pumping lid: Investigating multi-material 3D printing for equipment. #12;Experimental section 3D printing Lids and cups described in this paper were produced by multi-material 3D printing. The geometry of each part was designed using CAD software and exported to STL

  7. Digital Microfluidic Biochips: A Vision for Functional Diversity and More than Moore

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Digital Microfluidic Biochips: A Vision for Functional Diversity and More than Moore Krishnendu Chakrabarty Department of Electrical and Computer Engineering Duke University. Durham, NC 27708, USA Abstract--Microfluidics of droplet-based "digital" microfluidic biochips. It describes emerging computer-aided design (CAD) tools

  8. Texas State University-San Marcos Ingram School of Engineering

    E-Print Network [OSTI]

    Asiabanpour, Bahram - Department of Engineering and Technology, Texas State University

    Contest Award #12;2008 Best Team: Green Mold Battery cap mold design Samer Morad Nicolos Deland #12 part #12;Modular Battery Racks Shawn Youngblood Robert Singleton Erwin Yuwono #12;Concept scoring Frizzel #12;House of quality #12;Concept generation #12;Final CAD design · Utilizes two modified car jacks

  9. Heart Disease and Early Heart Attack Care

    E-Print Network [OSTI]

    Ohta, Shigemi

    Heart Disease and Early Heart Attack Care Pamela Kostic, RN, CCCC, Chest Pain Coordinator, Stony Risk Factors · EHAC & Prevention #12;Heart disease includes a number of problems affecting the heart and the blood vessels in the heart. #12;Types of heart disease include: · Coronary artery disease (CAD) · Angina

  10. To appear in KI -Kunstliche Intelligenz, BottcherIT Verlag, 2006. Holonomic Control of a robot with an omni-

    E-Print Network [OSTI]

    Rojas, Raúl

    destination at the correct angle. Figure 1: Our omnidirectional wheel design (left) and four- wheeled robot the robot a speed (vx, vy), with respect to a cartesian coordinate system attached to the robot, each wheel the CAD design of the omnidirectional robot which we used at RoboCup 2004 in Lisbon [3]. In the next

  11. Copyright 2004 by ASME Proceedings of DETC'04

    E-Print Network [OSTI]

    Bidarra, Rafael

    Copyright © 2004 by ASME Proceedings of DETC'04 2004 ASME Design Engineering Technical Conferences approach with the sort of 3D direct manipulation facilities usually only found in powerful standalone CAD, is that they run on powerful, typically standalone, workstations. Current demands for supporting design

  12. 1 Copyright 2001 by ASME Proceedings of DETC'01

    E-Print Network [OSTI]

    Bidarra, Rafael

    1 Copyright © 2001 by ASME Proceedings of DETC'01 2001 ASME Design Engineering Technical the availability of faster and more powerful hardware. Still, these improvements have their counterpart characteristic of most current CAD systems is that they run on powerful workstations or personal computers

  13. 1 Copyright 2003 by ASME Proceedings of DETC'03

    E-Print Network [OSTI]

    1 Copyright © 2003 by ASME Proceedings of DETC'03: ASME 2003 Design Engineering Technical the power to build almost any conceivable geometry. The designer simply generates a three dimensional CAD) technology is a #12;2 Copyright © 2003 by ASME powder that sinters together upon contact with the drawing

  14. Client/server technology: Is it beneficial in the engineering information and information technology environment?

    SciTech Connect (OSTI)

    Norton, F.J.

    1996-06-10T23:59:59.000Z

    Client/server systems have been touted as the next step in the advance of the computer into modern, computer-aided drafting (CAD), computer-aided engineering (CAE), geographical information systems (GIS), engineering information (EI) technology, and information technology (IT) society, but they are not a solution to every organizations problems when it comes to advanced computer technology. Some of the ideas that are presented here are {open_quotes}old hat.{close_quotes} Then I ask you, why don`t we follow there {open_quotes}old hat{close_quotes} principles? This paper attempts and explores the advantages and disadvantages of these popular systems. The client/server architecture, apart from its ability to manage CAD/CAE/GIS and EI/IT and deliver it to decision makers in a timely fashion, offers many compelling advantages. There is, however, a downside to the widespread acceptance of the client/server environment. Users who expect to save money may be very disappointed. This paper provides a set of guidelines to help senior managers determine whether client/server computing is right for their CAD/CAE/GIS and IT organizations. From this point on, the abbreviations, CAD/CAE/GIS and EI/IT will be jointly referred to as {open_quotes}EI/IT{close_quotes} systems.

  15. UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering

    E-Print Network [OSTI]

    Carpick, Robert W.

    and Applied Mechanics? Mechanical engineering and applied mechanics is the study of energy conversion, forces or more areas in mechanical engineering such as computer-aided-design and manufacturing (CAD/CAM), energyUNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering and Applied Mechanics University

  16. UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering

    E-Print Network [OSTI]

    Carpick, Robert W.

    engineering (for example, computer-aided-design and manufacturing (CAD/CAM), energy engineering, mechanicalUNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering and Applied Mechanics University of Pennsylvania September 2009 www.me.upenn.edu #12;2 TABLE OF CONTENTS What is Mechanical Engineering and Applied

  17. A RESTful API for Supporting Automated BioBrick Model Assembly

    E-Print Network [OSTI]

    Steyn, J S

    2010-12-05T23:59:59.000Z

    Constructing simulatable models for BioBricks by hand is a complex and time-consuming task. The time taken could be reduced by using Computer Aided Design (CAD) tools to aid in designing models, but these tools need to be ...

  18. Materials for Solar Energy: Photovoltaics The University Center of Excellence for Photovoltaics Research and Education (UCEP) at

    E-Print Network [OSTI]

    Li, Mo

    , Anneal Ion Implantation UV laser LPCVD Polysilicon depostition PV Systems Sizing PV Form PC Cad SizeMaterials for Solar Energy: Photovoltaics The University Center of Excellence for Photovoltaics hood, VL Texturing hood PV Cost E-cost (Calculates cost of electricity system) M-Cost 1 (Excel

  19. Lab Five & Six Building & Editing Geodatabase

    E-Print Network [OSTI]

    Hung, I-Kuai

    coverages, shapefiles, CAD drawings, INFO tables, and DBF tables. File geodatabase works across platforms boundary shapefile by digitizing. Now with the topological data model, coverage, you can easily build or using Calculate Geometry in a shapefile in Lab 4. In geodatabases, area is given automatically. However

  20. Instruction Set Extension with Shadow Registers for Configurable Processors

    E-Print Network [OSTI]

    Cong, Jason "Jingsheng"

    limitation in configurable processors, and then propose a novel low-cost architectural extension growing despite increasingly expensive CAD tools. This urges a move toward the use of programmable. Reconfigurable platforms, combined reconfigurable fabric with a general-purpose processor, are a promising

  1. School of Engineering Design, Technology, and Professional Programs Spring 2013 The Boeing Company 3 Fuel Slosh Amplification and Damping

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE School of Engineering Design, Technology, and Professional Programs Spring 2013 fit into a small manhole and must be able to be installed without piercing or drilling into the lining to determine a new natural tank frequency and to predict slosh forces. A CAD model of the slosh table

  2. B.S.M.E. DEGREE IN MECHANICAL ENGINEERING AND ENGINEERING SCIENCE

    E-Print Network [OSTI]

    Raja, Anita

    3116 HEAT TRANSFER 3 MEGR 3171 MEAS. & INSTRUM. 2 MEGR 3156 DESIGN PROJ. LAB II 2 MEGR 3171L INSTRUM: Introduction to Finite Element Analysis (requires MEGR 2144 and 2240) · MEGR 3231: Advanced CAD/CAM (requires MEGR 2240 COMPUTATIONAL METHODS 3 16 17 JUNIOR YEAR MEGR 3111 THERMODYNAMICS I 3 MEGR 3112

  3. B.S.M.E. DEGREE IN MECHANICAL ENGINEERING AND ENGINEERING SCIENCE

    E-Print Network [OSTI]

    Raja, Anita

    SYSTEMS I 3 MEGR 3122 DYNAMIC SYSTEMS II 3 MEGR 3161 ENGR MATERIALS 3 MEGR 3116 HEAT TRANSFER 3 MEGR 3171 to Finite Element Analysis (requires MEGR 2144 and 2240) · MEGR 3231: Advanced CAD/CAM (requires ENGR 1202 ELECT. ENGR 3 LBST 2101 WESTERN CULTURE 3 MEGR 2240 COMPUTATIONAL METHODS 3 MEGR 2299 MOTORSPORTS CLINIC

  4. Pacific Graphics 2012 C. Bregler, P. Sander, and M. Wimmer

    E-Print Network [OSTI]

    for the most interesting effects in this field such as wake flow and von Karman vortex shedding, which discrete vortex method is used to capture the detailed wake motions behind an obstacle, enriching:hj@cad.zju.edu.cn Figure 1: Vortex shedding (top) is a natural phenomenon usually seen when high speed fluid flows over

  5. Department of Industrial and Manufacturing Engineering Fall 2011 Multiple Position Welding Platform

    E-Print Network [OSTI]

    Demirel, Melik C.

    Welding Platform Overview The Rockland Manufacturing Company makes a wide variety of custom attachments · CAD models created for the adjustable platform designs · Prototype manufactured at Penn State using raw materials for the platform and railing and a purchased pallet stacker and step ladder Outcomes

  6. Virtual Reality as a Tool for Verification of Assembly and Maintenance

    E-Print Network [OSTI]

    Zachmann, Gabriel

    Sâ??a BMW AG, Geometrical Integration, CAD/CAM, 80788 Munich, Federal Republic of Germany, email: antonino.gomesdesa@bmw.de Gabriel Zachmann Fraunhofer Institute for Computer Graphics, RundeturmstraÃ?e 6 that VR will play an important role for VP in the near future. Key words: Virtual environments, virtual

  7. Published in Proceedings of the ANS 7th Topical Meeting on Robotics & Remote Systems, Augusta GA, April 27-May 1, 1997 EVALUATION OF AN INTERACTIVE TECHNIQUE FOR CREATING SITE MODELS FROM

    E-Print Network [OSTI]

    Hoff, William A.

    .S. Department of Energy, Idaho Operations Office, under Contract No. DE-AC07-94ID13223 II. INTRODUCTION The use waste has become a necessity due to the risk to humans in such environments. Control schemes for robots in the scene is used in conjunction with a graphical user interface or CAD software to produce a site model

  8. MTL ANNUAL RESEARCH REPORT 2014 Acknowledgements iii MICROSYSTEMS INDUSTRIAL GROUP

    E-Print Network [OSTI]

    Reif, Rafael

    , Computation William Maloney, Systems Manager Paul McGrath, Research Specialist Michael McIlrath, CAD Manager Technician Paul Tierney, Research Specialist Timothy Turner, Technician A Dennis Ward, Research Specialist/POSTDOC ADVISORY BOARD Anna Baldycheva Alexander Barbati Hyun Boo Winston Chern Jeffrey Chou Charles Mackin Ujwal

  9. J. Field Ornithol. 84(2):210215, 2013 DOI: 10.1111/jofo.12020 Evaluation of two methods for quantifying

    E-Print Network [OSTI]

    Clayton, Dale H.

    based on an observer's timed inspection of various body regions on a bird. Dust-ruffling involves del plumaje. Posteriormente, se utiliz´o la eutanasia para poder determinar la exactitud de ambos m´etodos, utilizando el m´etodo de lavado para determinar el verdadero numero de piojos en cad´averes. Tanto el m

  10. Medial design of blades for hydroelectric turbines and ship propellers M. Rossgatterera

    E-Print Network [OSTI]

    Jüttler, Bert

    Medial design of blades for hydroelectric turbines and ship propellers M. Rossgatterera , B. J Abstract We present a method for constructing blades of hydroelectric turbines and ship propellers based. Keywords: CAD-model, B-spline representation, hydroelectric turbine blade, propeller blade, medial axis

  11. Department of Industrial Engineering Fall 2012 Laser Non-Contact Measurement of Moving Product

    E-Print Network [OSTI]

    Demirel, Melik C.

    With a non-contact measurement system improvements can be made in the inspection area ultimately eliminating Product Overview ArcelorMittal produces steel rails for railroads, cranes, transit agencies companies The team visited the factory again to conduct more measurements for the prototype and CAD models

  12. The Study of Media Beta Elliptical Cavities for CIADS

    E-Print Network [OSTI]

    Liangjian, Wen; Yongming, Li; Ruoxu, Wang; Hao, Guo; Cong, Zhang; Huan, Jia; Tiancai, Jiang; Chunlong, Li; Yuan, He

    2015-01-01T23:59:59.000Z

    The China Accelerator Driven Sub-critical System (CADS) is a high intensity proton facility to dispose of nuclear waste and generate electric power. CADS is based on 1.5GeV, 10mA CW superconducting (SC) linac as a driver. The high-energy section of the linac is compose of two families of SC elliptical cavities which are designed for the geometrical beta 0.63 and 0.82. In this paper, the 650 MHz \\b{eta}=0.63 SC elliptical cavity was studied including cavity optimization, multipacting, high order modes (HOMs) and generator RF power calculation. Keywords: high current, medium beta, ADS, superconducting cavity, HOMs

  13. Biology, control and synonomy of the red spider mites, Tetranychus opuntiae Banks and Tetranychus bimaculatus Harvey

    E-Print Network [OSTI]

    Iglinsky, William

    1951-01-01T23:59:59.000Z

    1'ITES, TETPANYCHUS OPUNTIAE BANKS AND TETPANYCHUS BIMACULATUS HARVEY A DISSERTATION Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in Partial Fulfillment of the Requirements for the Degree of Doctor... dosages, the author wishes to express his sincerest apprecia? tion* ii 137124 OBLGY ,C N,TOYTOR CADS BMFEvAlE '''''''''''''''''''''''H UP UKEvVislEeVK '''''''''' ' 1 UUP rSvtSa Vo Ge...

  14. Photogrammetry and Laser Imagery Tests for Tank Waste Volume Estimates: Summary Report

    SciTech Connect (OSTI)

    Field, Jim G. [Washington River Protection Solutions, LLC, Richland, WA (United States)

    2013-03-27T23:59:59.000Z

    Feasibility tests were conducted using photogrammetry and laser technologies to estimate the volume of waste in a tank. These technologies were compared with video Camera/CAD Modeling System (CCMS) estimates; the current method used for post-retrieval waste volume estimates. This report summarizes test results and presents recommendations for further development and deployment of technologies to provide more accurate and faster waste volume estimates in support of tank retrieval and closure.

  15. Lung nodule detection in low-dose and high-resolution CT scans

    E-Print Network [OSTI]

    Delogu, P; Gori, I; Preite Martínez, A; Retico, A; Tata, A

    2006-01-01T23:59:59.000Z

    We are developing a computer-aided detection (CAD) system for the identification of small pulmonary nodules in screening CT scans. The main modules of our system, i.e. a dot-enhancement filter for nodule candidate selection and a neural classifier for false positive finding reduction, are described. The preliminary results obtained on the so-far collected database of lung CT are discussed.

  16. Very Fast Chip-level Thermal Analysis

    E-Print Network [OSTI]

    K. Nakabayashi; T. Nakabayashi; K. Nakajima

    2008-01-07T23:59:59.000Z

    We present a new technique of VLSI chip-level thermal analysis. We extend a newly developed method of solving two dimensional Laplace equations to thermal analysis of four adjacent materials on a mother board. We implement our technique in C and compare its performance to that of a commercial CAD tool. Our experimental results show that our program runs 5.8 and 8.9 times faster while keeping smaller residuals by 5 and 1 order of magnitude, respectively.

  17. Effects of implantation of Synovex (progesterone-estradiol) and castration in Holstein and Brown Swiss bull calves for beef production 

    E-Print Network [OSTI]

    Vergara, Francisco de Patino

    1967-01-01T23:59:59.000Z

    "ra@-HE'LL 5~?. Cn?. X. . ~n?? @no Tech? yy 2~- 69? QS, TelK~ H+ K?~mezg, B, snQ G~, Q H LNA, ENeee yR ~ el eaaeeaeLm cad oC eeseosCevms p:ey~ oa migs getLe ~ CQKCSSS QQQSUECIIKXCI QS SCCQX8o ASSCo Do ETC ~ AQSZ4 Eeslhi, 4sGP~ Ki ~ +Lese's, J, lLM7+ Xke...

  18. Effects of implantation of Synovex (progesterone-estradiol) and castration in Holstein and Brown Swiss bull calves for beef production

    E-Print Network [OSTI]

    Vergara, Francisco de Patino

    1967-01-01T23:59:59.000Z

    "ra@-HE'LL 5~?. Cn?. X. . ~n?? @no Tech? yy 2~- 69? QS, TelK~ H+ K?~mezg, B, snQ G~, Q H LNA, ENeee yR ~ el eaaeeaeLm cad oC eeseosCevms p:ey~ oa migs getLe ~ CQKCSSS QQQSUECIIKXCI QS SCCQX8o ASSCo Do ETC ~ AQSZ4 Eeslhi, 4sGP~ Ki ~ +Lese's, J, lLM7+ Xke...

  19. Constructing a GIS-based 3D urban model using LiDAR and aerial photographs

    E-Print Network [OSTI]

    Lin, Wei-Ming

    2005-02-17T23:59:59.000Z

    ; Rau and Chen 2001; Shiode 2001; Zhou et al. 2004). The 3D urban modeling technique enables urban residents to visualize future urban construction and development. It also supports standard activities of urban design and city planning and allows... of geometric information about urban objects, and it is an efficient tool for designing and creating urban objects (Sinning-Meister et al 1996). The contemporary CAD systems also offer full 3D rendering capability to visualize urban objects and the urban...

  20. Hanford site Computer Automated Mapping Information System (CAMIS)

    SciTech Connect (OSTI)

    Rush, S.F. [ICF Kaiser Hanford Co., Richland, WA (United States)

    1995-09-01T23:59:59.000Z

    The Computer Automated Mapping Information System (CAMIS) provides sitewide, networked access to CAD based geographically referenced data. CAMIS allows multiple organizations to maintain and share their data. Information collected and managed according to site-wide standards, enables each organization to focus their limited resources on data issues tied to their own discipline without having to collect or manage reference data outside their respective domains. Sharing information also minimizes redundant data and helps improve the overall quality of the sites` data resources.

  1. A NEW SPECIES OF WREN (TROGLODYTIDAE: THRYOPHILUS) FROM THE DRY CAUCA RIVER CANYON, NORTHWESTERN COLOMBIA

    E-Print Network [OSTI]

    Cuervo, Andrés

    COLOMBIA Carlos EstEban lara,1 andrés M. CuErvo,2,6 sandra v. valdErraMa,3 diEgo CaldErón-F.,4 and Carlos daniEl CadEna5 1 Departamento de Ciencias Forestales, Universidad Nacional de Colombia, Calle 59A no. 63-20, Medellín, Colombia; 2 Department of Biological Sciences and Museum of Natural Science

  2. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 4 Report: Virtual Mockup Maintenance Task Evaluation

    SciTech Connect (OSTI)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28T23:59:59.000Z

    Task 4 report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. This report focuses on using Full-scale virtual mockups for nuclear power plant training applications.

  3. Gene Expression Analyses and Association Studies of Wood Development Genes in Loblolly Pine (Pinus taeda L.)

    E-Print Network [OSTI]

    Palle, Sreenath Reddy

    2011-10-21T23:59:59.000Z

    ............................................................ 58 7 Model of the association between the AIP and PRT genes ........................ 64 8 Pathways demonstrating the indirect role of CGS and the direct role of CAD in lignin biosynthesis... complex and therefore the molecular mechanisms governing the differentiation of wood tissues are complicated. Several researchers have identified a number of genes involved in the biosynthesis of polysaccharides, lignins and cell wall proteins in forest...

  4. Web 2.0 and Geospatial Convergence

    E-Print Network [OSTI]

    Zeiss, Geoff

    2007-11-14T23:59:59.000Z

    © 2005 Autodesk 1 Web 2.0 and Geospatial Convergence Geoff Zeiss, Director of Technology 6th Annual GIS Day @ KU Symposium © 2005 Autodesk 2 Worldwide Challenges © 2005 Autodesk 3 Global Climate Change The Norwegian Nobel Committee has decided... is Developing New Technologies © 2005 Autodesk 14 Location-enabling IT GIS Ge ne ral IT Ge ne ral IT Ge osp ati al en ab led 2005 / 2006 Examples: Web search, RDBMS, CAD, architectural design, engineering, … © 2005 Autodesk 15 Open Standards October 2007...

  5. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 5 Report: Generation IV Reactor Virtual Mockup Proof-of-Principle Study

    SciTech Connect (OSTI)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28T23:59:59.000Z

    Task 5 report is part of a 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. Created a virtual mockup of PBMR reactor cavity and discussed applications of virtual mockup technology to improve Gen IV design review, construction planning, and maintenance planning.

  6. Using Photogrammetry to Estimate Tank Waste Volumes from Video

    SciTech Connect (OSTI)

    Field, Jim G. [Washington River Protection Solutions, LLC, Richland, WA (United States)

    2013-03-27T23:59:59.000Z

    Washington River Protection Solutions (WRPS) contracted with HiLine Engineering & Fabrication, Inc. to assess the accuracy of photogrammetry tools as compared to video Camera/CAD Modeling System (CCMS) estimates. This test report documents the results of using photogrammetry to estimate the volume of waste in tank 241-C-I04 from post-retrieval videos and results using photogrammetry to estimate the volume of waste piles in the CCMS test video.

  7. A memory based method for computing robot-arm configuration

    E-Print Network [OSTI]

    Karimjee, Saleem

    1985-01-01T23:59:59.000Z

    flexible manufacturing tool. Such systems should allow the design of robot tasks using off-line techniques such as CAD/CAM software packages. Extremely sophisticated operations could then be programmed with relative ease, and without causing any down... function is the "Inverse Kinematic Solution" for simple robot arms. CMAC can loosely be described as a mapping that transforms an input vector, in this case the cartesian position of the robot end-eifector, to Figure 2. 2 A schematic representation...

  8. The Milling Assistant, Case-Based Reasoning, and machining strategy: A report on the development of automated numerical control programming systems at New Mexico State University

    SciTech Connect (OSTI)

    Burd, W. [Sandia National Labs., Albuquerque, NM (United States); Culler, D.; Eskridge, T.; Cox, L.; Slater, T. [New Mexico State Univ., Las Cruces, NM (United States)

    1993-08-01T23:59:59.000Z

    The Milling Assistant (MA) programming system demonstrates the automated development of tool paths for Numerical Control (NC) machine tools. By integrating a Case-Based Reasoning decision processor with a commercial CAD/CAM software, intelligent tool path files for milled and point-to-point features can be created. The operational system is capable of reducing the time required to program a variety of parts and improving product quality by collecting and utilizing ``best of practice`` machining strategies.

  9. Linking Building Commissioning and Operations and Maintenance Towards an Embedded Commissioning Practice

    E-Print Network [OSTI]

    Akin, O.; Gursel, I.

    2005-01-01T23:59:59.000Z

    Pentagon facility. Automation of BC Currently, the most generalized and common applications in the field are supported by general purpose AEC applications such as ArchiBUS [Table 1, int-5], IFC Compatible platforms like ArchiCAD and Auto... this information available to the operators and commissioners. ESL-IC-10/05-01 1 Figure 1. Our data transfer focus area in the context of the entire Embedded Commissioning process In this particular paper, we explore the interaction between...

  10. Component Guide for Elective Courses January 2011 Credit Hours

    E-Print Network [OSTI]

    Mountziaris, T. J.

    CE-ENGIN 211 Perspectives on the Evolution of Structures 0 0 CE-ENGIN 275 Introduction to AutoCAD 0 0 CE-ENGIN 473 Groundwater 2 1 CE-ENGIN 476 Solid and Hazardous Waste Management 2 1 CE-ENGIN 485 Civil Advanced Solid and Hazardous Waste Management 2 1 CE-ENGIN 577 Surface Water Quality Modeling 2 1 CE

  11. Resting early peak diastolic filling rate: a sensitive index of myocardial dysfunction in patients with coronary artery disease

    SciTech Connect (OSTI)

    Polak, J.F.; Kemper, A.J.; Bianco, J.A.; Parisi, A.F.; Tow, D.E.

    1982-06-01T23:59:59.000Z

    Resting first-pass radionuclide angiocardiography (RNA) was used to derive left-ventricular (LV) peak diastolic filling rates (PFR) in normals (Group 1:N . 12) and in patients with coronary artery disease (CAD), both without (Group 2:N . 27) and with previous myocardial infarction (Group 3:N . 23). Resting peak filling rates were significantly depressed in both Group 2 (1.61 +/- 0.36; p less than 0.01) and Group 3 (1:35 +/- 0.26; p less than 0.001) patients when compared with Group 1, normals (2.14 +/- 0.63). Even though LV systolic function of Group 2 patients was normal and comparable to that in Group 1 (EF . 0.55 +/- 0.06 against EF 0.55 +/- 0.06 NS), diastolic dysfunction (PFR less than 1.61 end diastolic volume/sec (EDV/sec)) was present at rest in 14 of 27 (52%). Depressed PFR values was also seen in 20 of 23 Group 3 patients (87%). It appears that (a) resting PFR is a sensitive and easily obtainable parameter of the diastolic dysfunction associated with CAD; (b) abnormal PFR values are seen in almost all patients with previous myocardial damage, and (c) a significant proportion of CAD patients without any evidence of abnormal systolic function have depressed resting PFR of the LV.

  12. Reduction of false positives on the rectal tube in computer-aided detection for CT colonography

    SciTech Connect (OSTI)

    Iordanescu, Gheorghe; Summers, Ronald M. [Department of Radiology, National Institutes of Health Building 10, Room 1C660, 10 Center Drive MSC 1182, Bethesda, Maryland 20892-1182 (United States)

    2004-10-01T23:59:59.000Z

    Purpose: To eliminate false-positive (FP) polyp detections on the rectal tube (RT) in CT colonography (CTC) computer-aided detection (CAD). Methods: We use a three-stage approach to detect the RT: detect the RT shaft, track the tube to the tip and label all the voxels that belong to the RT. We applied our RT detection algorithm on a CTC dataset consisting of 80 datasets (40 patients scanned in both prone and supine positions). Two different types of RTs were present, characterized by differences in shaft/bulb diameters, wall intensities, and shape of tip. Results: The algorithm detected 90% of RT shafts and completely tracked 72% of them. We labeled all the voxels belonging to the completely tracked RTs (72%) and in 11 out of 80 (14%) cases the RT voxels were partially labeled. We obtained a 9.2% reduction of the FPs in the initial polyp candidates' population, and a 7.9% reduction of the FPs generated by our CAD system. None of the true-positive detections were mislabeled. Conclusions: The algorithm detects the RTs with good accuracy, is robust with respect to the two different types of RT used in our study, and is effective at reducing the number of RT FPs reported by our CAD system.

  13. Model building techniques for analysis.

    SciTech Connect (OSTI)

    Walther, Howard P.; McDaniel, Karen Lynn; Keener, Donald; Cordova, Theresa Elena; Henry, Ronald C.; Brooks, Sean; Martin, Wilbur D.

    2009-09-01T23:59:59.000Z

    The practice of mechanical engineering for product development has evolved into a complex activity that requires a team of specialists for success. Sandia National Laboratories (SNL) has product engineers, mechanical designers, design engineers, manufacturing engineers, mechanical analysts and experimentalists, qualification engineers, and others that contribute through product realization teams to develop new mechanical hardware. The goal of SNL's Design Group is to change product development by enabling design teams to collaborate within a virtual model-based environment whereby analysis is used to guide design decisions. Computer-aided design (CAD) models using PTC's Pro/ENGINEER software tools are heavily relied upon in the product definition stage of parts and assemblies at SNL. The three-dimensional CAD solid model acts as the design solid model that is filled with all of the detailed design definition needed to manufacture the parts. Analysis is an important part of the product development process. The CAD design solid model (DSM) is the foundation for the creation of the analysis solid model (ASM). Creating an ASM from the DSM currently is a time-consuming effort; the turnaround time for results of a design needs to be decreased to have an impact on the overall product development. This effort can be decreased immensely through simple Pro/ENGINEER modeling techniques that summarize to the method features are created in a part model. This document contains recommended modeling techniques that increase the efficiency of the creation of the ASM from the DSM.

  14. A Total Cost of Ownership Model for Low Temperature PEM Fuel Cells in Combined Heat and Power and Backup Power Applications

    SciTech Connect (OSTI)

    University of California, Berkeley; Wei, Max; Lipman, Timothy; Mayyas, Ahmad; Chien, Joshua; Chan, Shuk Han; Gosselin, David; Breunig, Hanna; Stadler, Michael; McKone, Thomas; Beattie, Paul; Chong, Patricia; Colella, Whitney; James, Brian

    2014-06-23T23:59:59.000Z

    A total cost of ownership model is described for low temperature proton exchange membrane stationary fuel cell systems for combined heat and power (CHP) applications from 1-250kW and backup power applications from 1-50kW. System designs and functional specifications for these two applications were developed across the range of system power levels. Bottom-up cost estimates were made for balance of plant costs, and detailed direct cost estimates for key fuel cell stack components were derived using design-for-manufacturing-and-assembly techniques. The development of high throughput, automated processes achieving high yield are projected to reduce the cost for fuel cell stacks to the $300/kW level at an annual production volume of 100 MW. Several promising combinations of building types and geographical location in the U.S. were identified for installation of fuel cell CHP systems based on the LBNL modelling tool DER CAM. Life-cycle modelling and externality assessment were done for hotels and hospitals. Reduced electricity demand charges, heating credits and carbon credits can reduce the effective cost of electricity ($/kWhe) by 26-44percent in locations such as Minneapolis, where high carbon intensity electricity from the grid is displaces by a fuel cell system operating on reformate fuel. This project extends the scope of existing cost studies to include externalities and ancillary financial benefits and thus provides a more comprehensive picture of fuel cell system benefits, consistent with a policy and incentive environment that increasingly values these ancillary benefits. The project provides a critical, new modelling capacity and should aid a broad range of policy makers in assessing the integrated costs and benefits of fuel cell systems versus other distributed generation technologies.

  15. KRW oxygen-blown gasification combined cycle: Carbon dioxide recovery, transport, and disposal

    SciTech Connect (OSTI)

    Doctor, R.D.; Molburg, J.C.; Thimmapuram, P.R.

    1996-08-01T23:59:59.000Z

    This project emphasizes CO{sub 2}-capture technologies combined with integrated gasification combined-cycle (IGCC) power systems. Complementary evaluations address CO{sub 2} transportation, CO{sub 2} use, and options for the long-term sequestration of unused CO{sub 2}. The intent is to provide the CO{sub 2} budget, or an equivalent CO{sub 2} budget, associated with each of the individual energy-cycle steps, in addition to process design capital and operating costs. The base case is a 458-MW (gross generation) IGCC system that uses an oxygen-blown Kellogg-Rust-Westinghouse agglomerating fluidized-bed gasifier, Illinois No. 6 bituminous coal feed, and low-pressure glycol sulfur removal followed by Claus/SCOT treatment to produce a saleable product. Mining, feed preparation, and conversion result in a net electric power production for the entire energy cycle of 411 MW, with a CO{sub 2} release rate of 0.801 kg/k Whe. For comparison, in two cases, the gasifier output was taken through water-gas shift and then to low-pressure glycol H{sub 2}S recovery, followed by either low-pressure glycol or membrane CO{sub 2} recovery and then by a combustion turbine being fed a high-hydrogen-content fuel. Two additional cases employed chilled methanol for H{sub 2}S recovery and a fuel cell as the topping cycle with no shift stages. From the IGCC plant, a 500-km pipeline took the CO{sub 2} to geological sequestering. In a comparison of air-blown and oxygen-blown CO{sub 2}-release base cases, the cost of electricity for the air-blown IGCC was 56.86 mills/kWh, and the cost of oxygen-blown IGCC was 58.29 mills/kWh.

  16. Cardiovascular Comorbidity and Mortality in Men With Prostate Cancer Treated With Brachytherapy-Based Radiation With or Without Hormonal Therapy

    SciTech Connect (OSTI)

    Nanda, Akash, E-mail: akash.nanda@orlandohealth.com [Department of Radiation Oncology, MD Anderson Cancer Center Orlando, Orlando, Florida (United States)] [Department of Radiation Oncology, MD Anderson Cancer Center Orlando, Orlando, Florida (United States); Chen, Ming-Hui [Department of Statistics, University of Connecticut, Storrs, Connecticut (United States)] [Department of Statistics, University of Connecticut, Storrs, Connecticut (United States); Moran, Brian J.; Braccioforte, Michelle H. [Prostate Cancer Foundation of Chicago, Westmont, Illinois (United States)] [Prostate Cancer Foundation of Chicago, Westmont, Illinois (United States); D'Amico, Anthony V. [Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts (United States)

    2013-04-01T23:59:59.000Z

    Purpose: To assess the impact of coronary artery disease (CAD) risk factors and sequelae on the risk of all-cause mortality (ACM) in men treated for prostate cancer (PC). Methods and Materials: The study cohort comprised 5077 men with PC consecutively treated with curative intent between 1997 and 2006 at the Chicago Prostate Cancer Center. Cox and Fine and Gray's competing risks regression multivariable analyses were performed, assessing whether cardiovascular comorbidity impacted the risk of ACM and PC-specific mortality, respectively, adjusting for CAD risk factors (diabetes mellitus, hypercholesterolemia, or hypertension) and sequelae (congestive heart failure or myocardial infarction), age, year and type of treatment, and known PC prognostic factors. Results: When compared with men with no comorbidity there was a significantly increased risk of ACM in men with congestive heart failure or myocardial infarction (adjusted hazard ratio [AHR] 1.96, P<.001) and in men with diabetes mellitus (AHR 1.60, P=.03) and hypertension (AHR 1.25, P=.04). In contrast, men with hypercholesterolemia had a similar risk of ACM (AHR 0.68, P=.17) when compared with men with no comorbidity. Other factors associated with a significantly increased risk of ACM included age (AHR 1.09, P<.001), prostate-specific antigen level (AHR 1.25, P=.008), and Gleason score 8-10 disease (AHR 1.71, P=.003). Cardiovascular comorbidity did not impact the risk of PC-specific mortality. Conclusions: In addition to age and unfavorable PC prognostic factors, select CAD risk factors and sequelae are associated with an increased risk of ACM in men treated for PC. These comorbidity prognostic factors predict time courses of mortality from competing causes, which may be factored into the decision-making process when considering management options for PC in a given individual.

  17. SU-E-I-30: Image Analysis in Ultrasonography for Diagnosis of Sjoegren's Syndrome Using Dual-Tree Complex Wavelet Transform

    SciTech Connect (OSTI)

    Matsui, T [Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka (Japan); Ohki, M [Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka (Japan); Nakamura, T; Takagi, Y [Department of Radiology and Cancer Biology, Nagasaki University School of Dentistry, Nagasaki (Japan)

    2014-06-01T23:59:59.000Z

    Purpose: Sjoegren's syndrome (SS) is an autoimmune disease invading mainly salivary and lacrimal glands. Ultrasonography is used for an initial and non-invasive examination of this disease. However, the ultrasonography diagnosis tends to lack in objectivity and depends on the operator's skills. The purpose of this study is to propose a computer-aided diagnosis (CAD) system for SS based on a dual-tree complex wavelet transform (DT-CWT) and machine learning. Methods: The subjects of this study were 174 patients suspected of having SS at Nagasaki University Hospital and examined with ultrasonography of the parotid glands. Out of these patients, 77 patients were diagnosed with SS by sialography. A region of interest (ROI) of 128 × 128 pixels was set within the parotid gland that was indicated by a dental radiologist. The DT-CWT was applied to the images in the ROI and every image was decomposed into 72 sub-images of the real and imaginary components in six different resolution levels and six orientations. The statistical features of the sub-image were calculated and used as data input for the support vector machine (SVM) classifier for the detection of SS. A ten-fold cross-validation was employed to verify the Resultof SVM. The accuracy of diagnosis was compared by a CAD system with a human observer performance. Results: The sensitivity, specificity, and accuracy in the detection of SS were 95%, 86%, and 91% through our CAD system respectively, while those by a human observer were 84%, 81%, and 83% respectively. Conclusion: The proposed computer-aided diagnosis system for Sjoegren's syndrome in ultrasonography based on dual-tree complex wavelet transform had a better performance than a human observer.

  18. Benchmarking a new closed-form thermal analysis technique against a traditional lumped parameter, finite-difference method

    SciTech Connect (OSTI)

    Huff, K. D.; Bauer, T. H. (Nuclear Engineering Division)

    2012-08-20T23:59:59.000Z

    A benchmarking effort was conducted to determine the accuracy of a new analytic generic geology thermal repository model developed at LLNL relative to a more traditional, numerical, lumped parameter technique. The fast-running analytical thermal transport model assumes uniform thermal properties throughout a homogenous storage medium. Arrays of time-dependent heat sources are included geometrically as arrays of line segments and points. The solver uses a source-based linear superposition of closed form analytical functions from each contributing point or line to arrive at an estimate of the thermal evolution of a generic geologic repository. Temperature rise throughout the storage medium is computed as a linear superposition of temperature rises. It is modeled using the MathCAD mathematical engine and is parameterized to allow myriad gridded repository geometries and geologic characteristics [4]. It was anticipated that the accuracy and utility of the temperature field calculated with the LLNL analytical model would provide an accurate 'birds-eye' view in regions that are many tunnel radii away from actual storage units; i.e., at distances where tunnels and individual storage units could realistically be approximated as physical lines or points. However, geometrically explicit storage units, waste packages, tunnel walls and close-in rock are not included in the MathCAD model. The present benchmarking effort therefore focuses on the ability of the analytical model to accurately represent the close-in temperature field. Specifically, close-in temperatures computed with the LLNL MathCAD model were benchmarked against temperatures computed using geometrically-explicit lumped-parameter, repository thermal modeling technique developed over several years at ANL using the SINDAG thermal modeling code [5]. Application of this numerical modeling technique to underground storage of heat generating nuclear waste streams within the proposed YMR Site has been widely reported [6]. New SINDAG thermal models presented here share this same basic modeling approach.

  19. Breaking Barriers in Polymer Additive Manufacturing

    SciTech Connect (OSTI)

    Love, Lonnie J [ORNL; Duty, Chad E [ORNL; Post, Brian K [ORNL; Lind, Randall F [ORNL; Lloyd, Peter D [ORNL; Kunc, Vlastimil [ORNL; Peter, William H [ORNL; Blue, Craig A [ORNL

    2015-01-01T23:59:59.000Z

    Additive Manufacturing (AM) enables the creation of complex structures directly from a computer-aided design (CAD). There are limitations that prevent the technology from realizing its full potential. AM has been criticized for being slow and expensive with limited build size. Oak Ridge National Laboratory (ORNL) has developed a large scale AM system that improves upon each of these areas by more than an order of magnitude. The Big Area Additive Manufacturing (BAAM) system directly converts low cost pellets into a large, three-dimensional part at a rate exceeding 25 kg/h. By breaking these traditional barriers, it is possible for polymer AM to penetrate new manufacturing markets.

  20. The chemical characteristics of cottonseed meal as related to its biological utilization

    E-Print Network [OSTI]

    Chang, Wan-Yuin

    1955-01-01T23:59:59.000Z

    - ,? ? * . ? ? # ? *? ??. ?*??. ? ? c -V':. > ..??? ? * * # , ? ??, ' ' -?; ? * * *.? * '?? ? ? ? 0 e ' / V '^/Vx- i - v ^ " . . ? ? '?? ? .* 9 ? 'cv ? *\\ ? o ToIt* IJoT, o I RT.C I uc ? r'? ?"? '' ' ? ' ' ?' ?'. ? ?? ; . " , ..'? '' / : r...CL '?a*;??CjvS 01? ??;.*??; .^cr'^ rpoX ^ x-o 5.'c>irr.*?.i5.r"c?* x-It-s r/ siite '>I*r:cv u*" gO??ypr>lr cad to z:?? 'L& rjy :.e?p3}, i-;f i:\\3r **? of o-isEicul^., ?Vs~:ig oilim-s* fclrs ir-olsticn o? tnve-a g}.r^d\\jlr^ pigrxr.tr c/cLo:?* tlssi gon...

  1. Efficient On-Chip Power Supply Sampling to Improve Post-Silicon Debug

    E-Print Network [OSTI]

    Murray, Luke

    2014-10-15T23:59:59.000Z

    at points in the power grid that are likely to have problems with droops or spikes; design-time CAD simulations and analysis could be used to identify these potentially problematic locations. Note that these test points may be located at sites... in the power supply. Other approaches required special off-chip equipment, or were destructive in nature. One method used in the past to detect spikes or droops in the power supply has been to look at the effects the noise would have on a circuit. In [2, 3, 4...

  2. Salmonella organisms in mature, healthy dogs

    E-Print Network [OSTI]

    Jungerman, Paul F

    1959-01-01T23:59:59.000Z

    twenty per 3S csnC o Several instances of concurrent infacCion in dogs and ~ living in tbs intimate anviromssnt of a household have bosn proven. Galton at ~al 31 16 made 1Lmitsd studies of tba human contacts of known infecCad anbsals an4 obtained... original ~Cion time. Dogs that were 3cmown to bsvs bean bospitalised i'or any f. llnass within ths previous six months were re)acted for tbe study. Dogs with a history of 4iarrhsa in tha previous twelve months ware noc uss4, Dogs that wars ths property...

  3. A statistical optimization methodology for practical integrated circuit design for quality and manufacturability

    E-Print Network [OSTI]

    Pastor, Curtis Lemay

    1997-01-01T23:59:59.000Z

    of the circuits by MOSIS. 6. Testing of the circuits' performance. The Design I'or Quality and Manufacturability (DFQM) CAD tools, and other software tools used to implement this research are as follows: 1. GOSSIP[3): A Generic System for Statistical..., Frederick and Charlotte ACKNOWLEDGMENTS I would like to thank Dr. M. A. Styblinski for allowing me to partake in this research endeavor and the guidance that followed from that endeavor. Special thanks Dr. C. Singh, Dr. J. Pineda de Gyves, and Dr. LL...

  4. A Knowledge Engineering Method for New Product Development

    E-Print Network [OSTI]

    Perry, Nicolas; 10.3166/jds.19.117-133

    2012-01-01T23:59:59.000Z

    Engineering activities involve large groups of people from different domains and disciplines. They often generate important information flows that are difficult to manage. To face these difficulties, a knowledge engineering process is necessary to structure the information and its use. This paper presents a deployment of a knowledge capitalization process based on the enrichment of MOKA methodology to support the integration of Process Planning knowledge in a CAD System. Our goal is to help different actors to work collaboratively by proposing one referential view of the domain, the context and the objectives assuming that it will help them in better decision-making.

  5. Investigations on field optimization of insulator geometries

    SciTech Connect (OSTI)

    Daumling, H.H.; Singer, H.

    1989-01-01T23:59:59.000Z

    Today computer methods become more and more a useful help for the constructor of any high voltage components, because stresses on dielectric materials have become increasingly high. The paper describes new algorithms based on the CAD concept for optimizing insulator contours according to a given field distribution along their surfaces. These algorithms were applied to some examples of insulators. By means of experimental investigations it was found that it is not sufficient to achieve a low tangential field strength component but that it is necessary to reduce the maximum values of the total field strength as far as possible, especially in the case of high air humidities.

  6. On the Classification of Low-Rank Braided Fusion Categories

    E-Print Network [OSTI]

    Bruillard, Paul Joseph

    2013-05-23T23:59:59.000Z

    ON THE CLASSIFICATION OF LOW-RANK BRAIDED FUSION CATEGORIES A Dissertation by PAUL JOSEPH BRUILLARD Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR...+=p . BFC Braided Fusion Category. C0 The M uger center of the category C. Cad The adjoint subcategory. Cpt The pointed subcategory. Cop Opposite (mirror) category to C. coevX Coevaluation I! X X . C2 (G;K ) 2-cochains of G with coe cients in K . C...

  7. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Final Report

    SciTech Connect (OSTI)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28T23:59:59.000Z

    Final report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. Mockups applied to design review of AP600/1000, Construction planning for AP 600, and AP 1000 maintenance evaluation. Proof of concept study also performed for GenIV PBMR models.

  8. Timelining the Construction in Immersive Virtual Reality System Using BIM Application

    E-Print Network [OSTI]

    Kuncham, Karteek

    2013-05-17T23:59:59.000Z

    activities a very high priority for the General Contractor (GC). 3D models were developed by the architects in CATIA (a 3D CAD modeling application) and the construction schedule was developed by the GC in Primavera P3 which consisted of approximately 7...,200 activities. The schedule was developed in such a way that the 3D project was divided into chunks that are relevant to an activity. The 3D models in CATIA were imported into Rhino3DTM to allow the addition of names to the geometry and allow...

  9. Simulation and Experimental Predictionss for the Structural Response of Satellites

    E-Print Network [OSTI]

    McLelland, Angela N

    2013-12-12T23:59:59.000Z

    with † “CubeSat.org”. June 20, 2013. http://www.cubesat.org/index.php/missions/upcoming-launches/122-l36- launch-aler 11 built in FEA solvers, i.e. CATIA†, SolidWorks††, and Inventor†††, afford users the opportunity to create one-to-one digital models..., forced vibration and non-linear dynamic † "Login to 3DEXPERIENCE Platform." 3DExperience Platform. http://www.3ds.com/products/catia/ †† "SolidWorks Simulation Premium." 3D CAD Design Software Solid...

  10. A Dharani-mantra in the Vinaya-vastu

    E-Print Network [OSTI]

    Pathak, Suniti K.

    1989-01-01T23:59:59.000Z

    offence (Vinaya-pitaka, Culla-vagga, V. 8.2. (PTS edn). See also' KevaUa SuUa (No. 11) Vol. p 214 (PTS edn). 4. Dutt, N. Early Monastic Buddhism p. 153-158, Calcutta, 1960. 5. Sukomal Choudhuri : Contemporary Buddhism in Bangladesh pp 116... dag gis zas sbyar na ji Ita bu yin pa ma ses nasI de rnams kyi sman pa la dris pa dan{ des _ smras pal 'phags pa dag kyed nyid kyi Slon pa beom Idan 'das ei thams cad (46b:2) mkhyen pa thams edd gzigs pa kho ns nyid yin tel de nyid mkhyen Ie zhes...

  11. The economic philosophy of John Charles Leonard Simonde de Sismondi

    E-Print Network [OSTI]

    Longley, James W.

    1937-01-01T23:59:59.000Z

    associates~ sad in 1841 Prance swarded hXxx the medal of ?hc "egioa of Honor, which ?cx. oleoa a; d offered hia in 1815. i'hese i. cxive snd succeesx'ul years of Sisacadixs life wcr-. iatcrzuptec by greet sorrows cad persoasl distress. 1n 4819 his f.... elf corried to the essqalc:l tc defend the old, ro~~nbllcsa fora of government of his country. His i:. st speech oa March M, 1842 ex- hausted hia, nd his c. use lost~ he returned to Chanc never to le. ;, vc egesta lt scene that he did not think he...

  12. Methods for simultaneous control of lignin content and composition, and cellulose content in plants

    DOE Patents [OSTI]

    Chiang, Vincent Lee C.; Li, Laigeng

    2005-02-15T23:59:59.000Z

    The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.

  13. PIPES: A Portable Integrated Piping Engineering Interface System

    SciTech Connect (OSTI)

    Lee, N.L.; Kanga, D. [Bechtel Corp., Gaithersburg, MD (United States)

    1995-12-01T23:59:59.000Z

    This paper describes software developed by the authors to integrate and automate several piping engineering applications for high-volume production use in the power and petrochemical industries. The system utilizes piping component geometry from a CAD model together with associated engineering and material data. It produces input for an industry-standard piping isometric drawing program, Electronic Data Interchange information for pipe spool fabrication, and input for several,common pipe stress analysis codes. The piping isometric drawings feature stress analysis data points and material tabulations. The software is based on an open architecture and incorporates rule-driven Expert System technology to provide flexibility and ease of customization.

  14. Panel designs and tilting equipment for tiltup concrete construction of farm structures

    E-Print Network [OSTI]

    Giesecke, Raymond Clayton

    1955-01-01T23:59:59.000Z

    atxibetcd err apy17ta~ 75 @or o. at ot tho b"co tM t5 lcm' cccIt at tM tope ?ho vcrtteA. c ~nto dao to ntrd tJcaa and ~~cotta~ acos cad d d xo:da aro faced h7 tthhg tbo aa==tQn of ca nto aboet tho boca of c=ch a&i "w=aMoa of;~to ahoj"t V 0 1 530 (6...

  15. SNL Mechanical Computer Aided Design (MCAD) guide 2007.

    SciTech Connect (OSTI)

    Moore, Brandon; Pollice, Stephanie L.; Martinez, Jack R.

    2007-12-01T23:59:59.000Z

    This document is considered a mechanical design best-practice guide to new and experienced designers alike. The contents consist of topics related to using Computer Aided Design (CAD) software, performing basic analyses, and using configuration management. The details specific to a particular topic have been leveraged against existing Product Realization Standard (PRS) and Technical Business Practice (TBP) requirements while maintaining alignment with sound engineering and design practices. This document is to be considered dynamic in that subsequent updates will be reflected in the main title, and each update will be published on an annual basis.

  16. Implementaion and performance of checkpointing schemes in a distributed environment 

    E-Print Network [OSTI]

    Soni, Sameer

    1994-01-01T23:59:59.000Z

    the Parameters V. B. 1 Number of Application Messages Number of messages is controBed by changing the value of NUM JUIESG in the program. We have controlled the number of messages to 10, 100, and 200. V. B. 2 Checkpoint Interval UNIX system caD 'settimer.... D. 1 Comparison of Schemes Consider Table I. The P value column has been obtained from the ANOVA result. Then the Tukey-Kramer Comparison Test has been run on all the combinations with significant difference (P&0. 05) to know exactly which schemes...

  17. File:08-CA-f - Permit to Construct.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d - CPCN

  18. File:08-CO-c - State Transmission Process.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d -

  19. File:08-FD-a - FederalTransmission.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d -8-FD-a -

  20. File:08-ID-c - Certificate of Public Convenience and Necessity.pdf | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d -8-FD-a

  1. File:08-OR-c - Oregon CPCN Process.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealandORCEncroachment.pdf07ORDExpeditedPlantCommissioningProcess.pdf Jump8 -Information 8-CA-d

  2. RAPID/Roadmap/14-HI-d | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformation TexasTexas)ID-a <RAPID/Roadmap/14adFD-cad

  3. Response of left ventricular ejection fraction to recovery from general anesthesia: measurement by gated radionuclide angiography

    SciTech Connect (OSTI)

    Coriat, P.; Mundler, O.; Bousseau, D.; Fauchet, M.; Rous, A.C.; Echter, E.; Viars, P.

    1986-06-01T23:59:59.000Z

    To test the hypothesis that, after anesthesia for noncardiac surgical procedures, the increased cardiac work during recovery induces wall motion and ejection fraction (EF) abnormalities in patients with mild angina pectoris, gated radionuclide angiography was performed in patients undergoing simple cholecystectomy under narcotic-relaxant general anesthesia. The ejection fraction was determined during anesthesia at the end of surgery, and then determined 3 min and 3 hr after extubation. A new angiography was performed 24 hr later, and a myocardial scintigraphy (Thallium 201) was performed during infusion of the coronary vasodilator, dipyridamole. In the first part of the investigation, eight patients without coronary artery disease (CAD) (group 1) and 20 patients with mild angina (group 2) were studied. In the second part of the study, seven patients (group 3) with mild angina pectoris received an intravenous infusion of 0.4 microgram X kg-1 X min-1 of nitroglycerin started before surgery and gradually decreased 4 hr after extubation. In group 1, EF remained unchanged at recovery. In contrast in group 2, EF responded abnormally to recovery: EF decreased from 55% during anesthesia to 45% 3 min after extubation (P less than 0.001). Patients in group 3, who received intravenous nitroglycerin, showed no change of EF at recovery. This study demonstrates that recovery from general anesthesia causes abnormalities in left ventricular function in patients suffering from CAD. These abnormalities are prevented by prophylactic intravenous nitroglycerin.

  4. Feature based volume decomposition for automatic hexahedral mesh generation

    SciTech Connect (OSTI)

    LU,YONG; GADH,RAJIT; TAUTGES,TIMOTHY J.

    2000-02-21T23:59:59.000Z

    Much progress has been made through these years to achieve automatic hexahedral mesh generation. While general meshing algorithms that can take on general geometry are not there yet; many well-proven automatic meshing algorithms now work on certain classes of geometry. This paper presents a feature based volume decomposition approach for automatic Hexahedral Mesh generation. In this approach, feature recognition techniques are introduced to determine decomposition features from a CAD model. The features are then decomposed and mapped with appropriate automatic meshing algorithms suitable for the correspondent geometry. Thus a formerly unmeshable CAD model may become meshable. The procedure of feature decomposition is recursive: sub-models are further decomposed until either they are matched with appropriate meshing algorithms or no more decomposition features are detected. The feature recognition methods employed are convexity based and use topology and geometry information, which is generally available in BREP solid models. The operations of volume decomposition are also detailed in the paper. The final section, the capability of the feature decomposer is demonstrated over some complicated manufactured parts.

  5. Integration of Heat Transfer, Stress, and Particle Trajectory Simulation

    SciTech Connect (OSTI)

    Thuc Bui; Michael Read; Lawrence ives

    2012-05-17T23:59:59.000Z

    Calabazas Creek Research, Inc. developed and currently markets Beam Optics Analyzer (BOA) in the United States and abroad. BOA is a 3D, charged particle optics code that solves the electric and magnetic fields with and without the presence of particles. It includes automatic and adaptive meshing to resolve spatial scales ranging from a few millimeters to meters. It is fully integrated with CAD packages, such as SolidWorks, allowing seamless geometry updates. The code includes iterative procedures for optimization, including a fully functional, graphical user interface. Recently, time dependent, particle in cell capability was added, pushing particles synchronically under quasistatic electromagnetic fields to obtain particle bunching under RF conditions. A heat transfer solver was added during this Phase I program. Completed tasks include: (1) Added a 3D finite element heat transfer solver with adaptivity; (2) Determined the accuracy of the linear heat transfer field solver to provide the basis for development of higher order solvers in Phase II; (3) Provided more accurate and smoother power density fields; and (4) Defined the geometry using the same CAD model, while maintaining different meshes, and interfacing the power density field between the particle simulator and heat transfer solvers. These objectives were achieved using modern programming techniques and algorithms. All programming was in C++ and parallelization in OpenMP, utilizing state-of-the-art multi-core technology. Both x86 and x64 versions are supported. The GUI design and implementation used Microsoft Foundation Class.

  6. Clarification of Institutional Controls at the Rocky Flats Site Central Operable Unit and Implementation of the Soil Disturbance Review Plan - 13053

    SciTech Connect (OSTI)

    DiSalvo, Rick [Stoller LMS Team, 11025 Dover St, Suite 1000, Westminster, CO 80021 (United States)] [Stoller LMS Team, 11025 Dover St, Suite 1000, Westminster, CO 80021 (United States); Surovchak, Scott [U.S. Department of Energy, Office of Legacy Management, 11025 Dover St, Suite 1000, Westminster, CO 80021 (United States)] [U.S. Department of Energy, Office of Legacy Management, 11025 Dover St, Suite 1000, Westminster, CO 80021 (United States); Spreng, Carl [Colorado Department of Public Health and Environment, 4300 Cherry Creek Dr. S, Denver, CO 80246-1530 (United States)] [Colorado Department of Public Health and Environment, 4300 Cherry Creek Dr. S, Denver, CO 80246-1530 (United States); Moritz, Vera [U.S. Environmental Protection Agency, Region 8, 1595 Wynkoop St., Denver, CO 80202-1129 (United States)] [U.S. Environmental Protection Agency, Region 8, 1595 Wynkoop St., Denver, CO 80202-1129 (United States)

    2013-07-01T23:59:59.000Z

    Cleanup and closure of DOE's Rocky Flats Site in Colorado, which was placed on the CERCLA National Priority List in 1989, was accomplished under CERCLA, RCRA, and the Colorado Hazardous Waste Act (CHWA). The physical cleanup work was completed in late 2005 and all buildings and other structures that composed the Rocky Flats industrial complex were removed from the surface, but remnants remain in the subsurface. Other remaining features include two landfills closed in place with covers, four groundwater treatment systems, and surface water and groundwater monitoring systems. Under the 2006 Corrective Action Decision/Record of Decision for Rocky Flats Plant (US DOE) Peripheral Operable Unit and the Central Operable Unit (CAD/ROD), the response actions selected for the Central Operable Unit (OU) are institutional controls (ICs), physical controls, and continued monitoring and maintenance. The objectives of these ICs were to prevent unacceptable exposure to remaining subsurface contamination and to prevent contaminants from mobilizing to surface water and to prevent interfering with the proper functioning of the engineered components of the remedy. An amendment in 2011 of the 2006 CAD/ROD clarified the ICs to prevent misinterpretation that would prohibit work to manage and maintain the Central OU property. The 2011 amendment incorporated a protocol for a Soil Disturbance Review Plan for work subject to ICs that requires approval from the State and public notification by DOE prior to conducting approved soil-disturbing work. (authors)

  7. Vehicle bomb protection for nuclear power plants

    SciTech Connect (OSTI)

    James, J.W.; Veatch, J.D.; Goldman, L.; Massa, R.

    1989-01-01T23:59:59.000Z

    The six-step methodology presented in this paper can be applied to nuclear power reactors to provide protection measures and considerations against vehicle bomb threats. The methodology provides a structured framework for examining the potential vulnerability of a plant to a postulated vehicle bomb and for developing contingency planning strategies for dealing with such a possibility. The six steps are as follows: (1) identify system options available to establish and maintain a safe reactor shutdown; (2) identify buildings or other structures containing critical components and equipment associated with each system option; (3) determine survival envelopes for the system options; (4) review site features to determine vehicle access approach paths and distances as they relate to the survival envelopes; (5) identify measures to limit or thwart vehicle access, and protect and preserve preferred system options; (6) prepare contingency plans and make advance arrangements for implementation of contingency measures for a vehicle bomb attack. Portions of this methodology related to blast effects from vehicle bombs on power reactor components are implemented using BombCAD, a proprietary computer-aided design (CAD)-based blast effects analysis technique.

  8. A new DFM approach to combine machining and additive manufacturing

    E-Print Network [OSTI]

    Kerbrat, Olivier; Hascoët, Jean-Yves; 10.1016/j.compind.2011.04.003

    2011-01-01T23:59:59.000Z

    Design For Manufacturing (DFM) approaches aim to integrate manufacturability aspects during the design stage. Most of DFM approaches usually consider only one manufacturing process, but products competitiveness may be improved by designing hybrid modular products, in which products are seen as 3-D puzzles with modules realized aside by the best manufacturing process and further gathered. A new DFM system is created in order to give quantitative information during the product design stage of which modules will benefit in being machined and which ones will advantageously be realized by an additive process (such as Selective Laser Sintering or laser deposition). A methodology for a manufacturability evaluation in case of a subtractive or an additive manufacturing process is developed and implemented in a CAD software. Tests are carried out on industrial products from automotive industry.

  9. Comparison of the Window-Frame RHIC-abort kicker with C-type Kicker

    SciTech Connect (OSTI)

    Tsoupas, N. [Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.; Hahn, H. [Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.; Meng, W. [Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.; Severance, Michael [Stony Brook Univ., NY (United States); McMahan, Brandon [Westhampton High School, NY (United States)

    2014-08-26T23:59:59.000Z

    The high intensity proton bunches (~2.5x1011 p/bunch ) circulating in RHIC increase the temperature of the ferrite-made RHIC-abort-kickers above the Curie point, as a result the kickers cannot provide the required field to abort the beam at the beam dump. A team of experts in the CAD department worked on modifying the design of the window-frame RHIC-abort kicker to minimize the hysteresis losses responsible for the increase of the ferrite’s temperature. In this technical note we report some results from the study of two possible modifications of the window-frame RHIC-abort kicker and we compare these results with those of a propose C-type RHIC-abort kicker. We also include an Appendix where we describe a method which may further reduce the hysteresis losses of the window-frame kicker.

  10. Information media used by cotton farmers in producing cotton in a ten-county area of North Central Texas 

    E-Print Network [OSTI]

    Anwarul Karim, A. M

    1965-01-01T23:59:59.000Z

    '~i. T"~~~M P~ME 83 'h"Z?" X WC" ' "'- ' k!X k~ZJp5 GMX ". 'W'. : tZ ~4m'8 ~, 3g i', 4 VDW ~iQ@@ I I EUQAI5 l &g"iy ~Wag ' 1 t I. g1 . 7~V. 'g I t ex~ yimwmr &g ?g I 5YWKg p l. II I l g SATiCO AK Cia%, VXC5l $OXti%8~ ' 1' t . i... On Feokeated XnfarXBI'cad on '1%QG iZC@gl e''ai ~ . ' . e y a ~ a a ~ e, ~" ~ ' ' ei '4. ' ' e ~ e e 6 d'IIercda Gse' of XnfoxBIG'Non", ISING bg xI~~' f Br cot ' Tennre ~els Of aearIIIBrs 'gOl' gattan p CQCCt&n E~jreseed 'Qn Peraentege, e e ~ a, gl (e 'd...

  11. Aspects of full-custom VLSI microprocessor design and implementation

    SciTech Connect (OSTI)

    Lee, Daebum.

    1989-01-01T23:59:59.000Z

    There is a broad spectrum of design styles that have proven successful for the construction of VLSI circuits and systems. Semi-custom to full-custom design styles offer a wide range of resulting performance, expected turn-around time, and required design effort. Implementation alternatives, such as replacing dynamic memory for static memory to implement a denser on-chip memory, also exist at all levels of design hierarchy. To make the best use of scarce resources on a single chip microprocessor and to make the emerging CAD tools truly useful, alternatives in the implementation of a microprocessor must be carefully evaluated. The research reported in this thesis focuses on issues concerning these alternatives, especially in the areas of on-chip memory design and automated control logic design.

  12. The role of technology in reducing health care costs. Final project report

    SciTech Connect (OSTI)

    Sill, A.E.; Warren, S.; Dillinger, J.D.; Cloer, B.K.

    1997-08-01T23:59:59.000Z

    Sandia National Laboratories applied a systems approach to identifying innovative biomedical technologies with the potential to reduce U.S. health care delivery costs while maintaining care quality. This study was conducted by implementing both top-down and bottom-up strategies. The top-down approach used prosperity gaming methodology to identify future health care delivery needs. This effort provided roadmaps for the development and integration of technology to meet perceived care delivery requirements. The bottom-up approach identified and ranked interventional therapies employed in existing care delivery systems for a host of health-related conditions. Economic analysis formed the basis for development of care pathway interaction models for two of the most pervasive, chronic disease/disability conditions: coronary artery disease (CAD) and benign prostatic hypertrophy (BPH). Societal cost-benefit relationships based on these analyses were used to evaluate the effect of emerging technology in these treatment areas. 17 figs., 48 tabs.

  13. Experience on Fabrication and Assembly of the First CLIC Two-Beam Module Prototype

    E-Print Network [OSTI]

    Gudkov, D; Riddone, G; Rossi, F; Lebet, S

    2013-01-01T23:59:59.000Z

    The CLIC two-beam module prototypes are intended to prove the design of all technical systems under the different operation modes. Two validation programs are currently under way and they foresee the construction of four prototype modules for mechanical tests without beam and three prototype modules for tests with RF and beam. The program without beam will show the capability of the technical solutions proposed to fulfil the stringent requirements on radio-frequency, supporting, pre-alignment, stabilization, vacuum and cooling systems. The engineering design was performed with the use of CAD/CAE software. Dedicated mock-ups of RF structures, with all mechanical interfaces and chosen technical solutions, are used for the tests and therefore reliable results are expected. The components were fabricated by applying different technologies and methods for manufacturing and joining. The first full-size prototype module was assembled in 2012. This paper is focused on the production process including the comparison o...

  14. The role of technology in reducing health care costs. Phase II and phase III.

    SciTech Connect (OSTI)

    Cilke, John F.; Parks, Raymond C.; Funkhouser, Donald Ray; Tebo, Michael A.; Murphy, Martin D.; Hightower, Marion Michael; Gallagher, Linda K.; Craft, Richard Layne, II; Garcia, Rudy John

    2004-04-01T23:59:59.000Z

    In Phase I of this project, reported in SAND97-1922, Sandia National Laboratories applied a systems approach to identifying innovative biomedical technologies with the potential to reduce U.S. health care delivery costs while maintaining care quality. The effort provided roadmaps for the development and integration of technology to meet perceived care delivery requirements and an economic analysis model for development of care pathway costs for two conditions: coronary artery disease (CAD) and benign prostatic hypertrophy (BPH). Phases II and III of this project, which are presented in this report, were directed at detailing the parameters of telemedicine that influence care delivery costs and quality. These results were used to identify and field test the communication, interoperability, and security capabilities needed for cost-effective, secure, and reliable health care via telemedicine.

  15. Methods for freeform fabrication of structures

    DOE Patents [OSTI]

    Kaufman, Stephen G. (Albuquerque, NM); Spletzer, Barry L. (Albuquerque, NM)

    2000-01-01T23:59:59.000Z

    Rapid prototyping methods and apparatuses that produce structures made of continuous-fiber polymer-matrix composites without the use of molds. Instead of using molds, the composite structure is fabricated patch by patch in layers or wraps, using a two- or three-axis stage connected to a rapidly-reconfigurable forming surface, and a robot arm to position the evolving composite structure, which are both programmable devices. Because programmable devices are included, i.e., a robot and a two- or three-axis stage connected to the reconfigurable forming surface, the control program needed to produce a desired shape can be easily modified to automatically generate the desired shape from an electronic model (e.g., using a CAD/CAM system) of the desired (predetermined) shape.

  16. Photogrammetry and ballistic analysis of a high-flying projectile in the STS-124 space shuttle launch

    E-Print Network [OSTI]

    Metzger, Philip T; Carilli, Robert A; Long, Jason M; Shawn, Kathy L

    2009-01-01T23:59:59.000Z

    A method combining photogrammetry with ballistic analysis is demonstrated to identify flying debris in a rocket launch environment. Debris traveling near the STS-124 Space Shuttle was captured on cameras viewing the launch pad within the first few seconds after launch. One particular piece of debris caught the attention of investigators studying the release of flame trench fire bricks because its high trajectory could indicate a flight risk to the Space Shuttle. Digitized images from two pad perimeter high-speed 16-mm film cameras were processed using photogrammetry software based on a multi-parameter optimization technique. Reference points in the image were found from 3D CAD models of the launch pad and from surveyed points on the pad. The three-dimensional reference points were matched to the equivalent two-dimensional camera projections by optimizing the camera model parameters using a gradient search optimization technique. Using this method of solving the triangulation problem, the xyz position of the o...

  17. Federal Republic of Germany

    E-Print Network [OSTI]

    Antonino Gomes De S; Gabriel Zachmann

    Business process re-engineering is becoming a main focus in today’s efforts to overcome problems and deficits in the automotive and aerospace industries (e.g., integration in international markets, product complexity, increasing number of product variants, reduction in product development time and cost). In this paper, we investigate the steps needed to apply virtual reality (VR) for virtual prototyping (VP) to verify assembly and maintenance processes. After a review of today’s business process in vehicle prototyping, we discuss CAD-VR data integration and identify new requirements for design quality. We present several new interaction paradigms so that engineers and designers can experiment naturally with the prototype. Finally, some results of a user survey performed at BMW are presented, showing the acceptance and feasability of VP and the paradigms implemented for our key process. The results show that VR will play an important role for VP in the near future.

  18. Numerical Verification of the Power Transfer and Wakefield Coupling in the CLIC Two-Beam Accelerator

    E-Print Network [OSTI]

    Candel, Arno; NG, C; Rawat, V; Schussman, G; Ko, K; Syratchev, I; Grudiev, A; Wuensch, W

    2011-01-01T23:59:59.000Z

    The Compact Linear Collider (CLIC) provides a path to a multi-TeV accelerator to explore the energy frontier of High Energy Physics. Its two-beam accelerator (TBA) concept envisions complex 3D structures, which must be modeled to high accuracy so that simulation results can be directly used to prepare CAD drawings for machining. The required simulations include not only the fundamental mode properties of the accelerating structures but also the Power Extraction and Transfer Structure (PETS), as well as the coupling between the two systems. Time-domain simulations will be performed to understand pulse formation, wakefield damping, fundamental power transfer and wakefield coupling in these structures. Applying SLAC’s parallel finite element code suite, these large-scale problems will be solved on some of the largest supercomputers available. The results will help to identify potential issues and provide new insights on the design, leading to further improvements on the novel two-beam accelerator scheme.

  19. Zebra: An advanced PWR lattice code

    SciTech Connect (OSTI)

    Cao, L.; Wu, H.; Zheng, Y. [School of Nuclear Science and Technology, Xi'an Jiaotong Univ., No. 28, Xianning West Road, Xi'an, ShannXi, 710049 (China)

    2012-07-01T23:59:59.000Z

    This paper presents an overview of an advanced PWR lattice code ZEBRA developed at NECP laboratory in Xi'an Jiaotong Univ.. The multi-group cross-section library is generated from the ENDF/B-VII library by NJOY and the 361-group SHEM structure is employed. The resonance calculation module is developed based on sub-group method. The transport solver is Auto-MOC code, which is a self-developed code based on the Method of Characteristic and the customization of AutoCAD software. The whole code is well organized in a modular software structure. Some numerical results during the validation of the code demonstrate that this code has a good precision and a high efficiency. (authors)

  20. HD1: Design and Fabrication of a 16 Tesla Nb3Sn DipoleMagnet

    SciTech Connect (OSTI)

    Hafalia, A.R.; Bartlett, S.E.; Capsi, S.; Chiesa, L.; Dietderich,D.R.; Ferracin, P.; Goli, M.; Gourlay, S.A.; Hannaford, C.R.; Highley,H.; Lietzke, A.F.; Liggins, N.; Mattafirri, S.; McInturff, A.D.; Nyman,M.; Sabbi, G.L.; Scanlan, R.M.; Swanson, J.

    2003-11-10T23:59:59.000Z

    The Lawrence Berkeley National Laboratory (LBNL) Superconducting Magnet Group has completed the design, fabrication and test of HD1, a 16 T block-coil dipole magnet. State of the art Nb{sub 3}Sn conductor was wound in double-layer racetrack coils and supported by an iron yoke and a tensioned aluminum shell. In order to prevent conductor movement under magnetic forces up to the design field, a coil pre-stress of 150 MPa was required. To achieve this level without damaging the brittle conductor, the target stress was generated during cool-down to 4.2 K by exploiting the thermal contraction differentials between yoke and shell. Accurate control of the shell tension during assembly was obtained using pressurized bladders and interference load keys. An integrated 3D CAD model was used to optimize magnetic and mechanical design and analysis.

  1. HD1: Design and Fabrication of a 16 Tesla Nb3Sn Dipole Magnet

    SciTech Connect (OSTI)

    Hafalia, A.R.; Barlett, S.E.; Caspi, S.; Chiesa, L.; Dietderich, D.R.; Ferracin, P.; Goli, M.; Gourlay, S.A.; Hannaford, C.R.; Higley, H.; Lietzke, A.F.; Liggins, N.; Mattafirri, S.; McInturff, A.D.; Myman, M.; Sabbi, G.L.; Scanlan, R.M.; Swanson, J.

    2003-10-01T23:59:59.000Z

    The Lawrence Berkeley National Laboratory (LBNL) Supcrconducting Magnet Group has completed the design, fabrication and tcst of HD1, a 16 T block-coil dipole magnet. State of the art Nb{sub 3}Sn conductor was wound in double-layer racetrack coils and supported by an iron yoke and a tensioned aluminum shell. In order to prevent conductor movement under magnetic forces up to the design field, a coil prestress of 150 MPa was required. To achieve this level without damaging the brittle conductor, the target stress was generated during cool-down to 4.2 K by exploiting the thermal contraction differentials between yoke and shell. Accurate control of the shell tension during assembly was obtained using pressurized bladders and interference load keys. An integrated 3D CAD model was used to optimize magnetic and mechanical design and analysis.

  2. Sculplexity: Sculptures of Complexity using 3D printing

    E-Print Network [OSTI]

    Reiss, D S; Evans, T S

    2014-01-01T23:59:59.000Z

    We show how to convert models of complex systems such as 2D cellular automata into a 3D printed object. Our method takes into account the limitations inherent to 3D printing processes and materials. Our approach automates the greater part of this task, bypassing the use of CAD software and the need for manual design. As a proof of concept, a physical object representing a modified forest fire model was successfully printed. Automated conversion methods similar to the ones developed here can be used to create objects for research, for demonstration and teaching, for outreach, or simply for aesthetic pleasure. As our outputs can be touched, they may be particularly useful for those with visual disabilities.

  3. Algorithms for Image Analysis and Combination of Pattern Classifiers with Application to Medical Diagnosis

    E-Print Network [OSTI]

    Georgiou, Harris

    2009-01-01T23:59:59.000Z

    Medical Informatics and the application of modern signal processing in the assistance of the diagnostic process in medical imaging is one of the more recent and active research areas today. This thesis addresses a variety of issues related to the general problem of medical image analysis, specifically in mammography, and presents a series of algorithms and design approaches for all the intermediate levels of a modern system for computer-aided diagnosis (CAD). The diagnostic problem is analyzed with a systematic approach, first defining the imaging characteristics and features that are relevant to probable pathology in mammo-grams. Next, these features are quantified and fused into new, integrated radio-logical systems that exhibit embedded digital signal processing, in order to improve the final result and minimize the radiological dose for the patient. In a higher level, special algorithms are designed for detecting and encoding these clinically interest-ing imaging features, in order to be used as input to ...

  4. Supine proton beam craniospinal radiotherapy using a novel tabletop adapter

    SciTech Connect (OSTI)

    Buchsbaum, Jeffrey C., E-mail: jbuchsba@iupui.edu [IU Health Proton Therapy Center, Bloomington, IN (United States); Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN (United States); Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN (United States); Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN (United States); Besemer, Abby; Simmons, Joseph; Hoene, Ted; Simoneaux, Victor; Sandefur, Amy [IU Health Proton Therapy Center, Bloomington, IN (United States); Wolanski, Mark; Li, Zhao; Cheng, Chee-Wei [IU Health Proton Therapy Center, Bloomington, IN (United States); Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN (United States)

    2013-04-01T23:59:59.000Z

    To develop a device that allows supine craniospinal proton and photon therapy to the vast majority of proton and photon facilities currently experiencing limitations as a result of couch design issues. Plywood and carbon fiber were used for the development of a prototype unit. Once this was found to be satisfactory after all design issues were addressed, computer-assisted design (CAD) was used and carbon fiber tables were built to our specifications at a local manufacturer of military and racing car carbon fiber parts. Clinic-driven design was done using real-time team discussion for a prototype design. A local machinist was able to construct a prototype unit for us in <2 weeks after the start of our project. Once the prototype had been used successfully for several months and all development issues were addressed, a custom carbon fiber design was developed in coordination with a carbon fiber manufacturer in partnership. CAD methods were used to design the units to allow oblique fields from head to thigh on patients up to 200 cm in height. Two custom-designed carbon fiber craniospinal tabletop designs now exist: one long and one short. Four are in successful use in our facility. Their weight tolerance is greater than that of our robot table joint (164 kg). The long unit allows for working with taller patients and can be converted into a short unit as needed. An affordable, practical means of doing supine craniospinal therapy with protons or photons can be used in most locations via the use of these devices. This is important because proton therapy provides a much lower integral dose than all other therapy methods for these patients and the supine position is easier for patients to tolerate and for anesthesia delivery. These units have been successfully used for adult and pediatric supine craniospinal therapy, proton therapy using oblique beams to the low pelvis, treatment of various spine tumors, and breast-sparing Hodgkin's therapy.

  5. Automated analysis for lifecycle assembly processes

    SciTech Connect (OSTI)

    Calton, T.L.; Brown, R.G.; Peters, R.R.

    1998-05-01T23:59:59.000Z

    Many manufacturing companies today expend more effort on upgrade and disposal projects than on clean-slate design, and this trend is expected to become more prevalent in coming years. However, commercial CAD tools are better suited to initial product design than to the product`s full life cycle. Computer-aided analysis, optimization, and visualization of life cycle assembly processes based on the product CAD data can help ensure accuracy and reduce effort expended in planning these processes for existing products, as well as provide design-for-lifecycle analysis for new designs. To be effective, computer aided assembly planning systems must allow users to express the plan selection criteria that apply to their companies and products as well as to the life cycles of their products. Designing products for easy assembly and disassembly during its entire life cycle for purposes including service, field repair, upgrade, and disposal is a process that involves many disciplines. In addition, finding the best solution often involves considering the design as a whole and by considering its intended life cycle. Different goals and constraints (compared to initial assembly) require one to re-visit the significant fundamental assumptions and methods that underlie current assembly planning techniques. Previous work in this area has been limited to either academic studies of issues in assembly planning or applied studies of life cycle assembly processes, which give no attention to automatic planning. It is believed that merging these two areas will result in a much greater ability to design for; optimize, and analyze life cycle assembly processes.

  6. A method to improve visual similarity of breast masses for an interactive computer-aided diagnosis environment

    SciTech Connect (OSTI)

    Zheng Bin; Lu, Amy; Hardesty, Lara A.; Sumkin, Jules H.; Hakim, Christiane M.; Ganott, Marie A.; Gur, David [Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15213 (United States)

    2006-01-15T23:59:59.000Z

    The purpose of this study was to develop and test a method for selecting 'visually similar' regions of interest depicting breast masses from a reference library to be used in an interactive computer-aided diagnosis (CAD) environment. A reference library including 1000 malignant mass regions and 2000 benign and CAD-generated false-positive regions was established. When a suspicious mass region is identified, the scheme segments the region and searches for similar regions from the reference library using a multifeature based k-nearest neighbor (KNN) algorithm. To improve selection of reference images, we added an interactive step. All actual masses in the reference library were subjectively rated on a scale from 1 to 9 as to their 'visual margins speculations'. When an observer identifies a suspected mass region during a case interpretation he/she first rates the margins and the computerized search is then limited only to regions rated as having similar levels of spiculation (within {+-}1 scale difference). In an observer preference study including 85 test regions, two sets of the six 'similar' reference regions selected by the KNN with and without the interactive step were displayed side by side with each test region. Four radiologists and five nonclinician observers selected the more appropriate ('similar') reference set in a two alternative forced choice preference experiment. All four radiologists and five nonclinician observers preferred the sets of regions selected by the interactive method with an average frequency of 76.8% and 74.6%, respectively. The overall preference for the interactive method was highly significant (p<0.001). The study demonstrated that a simple interactive approach that includes subjectively perceived ratings of one feature alone namely, a rating of margin 'spiculation', could substantially improve the selection of 'visually similar' reference images.

  7. Crusader Automated Docking System: Technology support for the Crusader Resupply Team. Interim report, Ammunition Logistics Program

    SciTech Connect (OSTI)

    Kring, C.T.; Varma, V.K.; Jatko, W.B.

    1995-11-01T23:59:59.000Z

    The US Army and Team Crusader (United Defense, Lockheed Martin Armament Systems, etc.) are developing the next generation howitzer, the Crusader. The development program includes an advanced, self-propelled liquid propellant howitzer and a companion resupply vehicle. The resupply vehicle is intended to rendezvous with the howitzer near the battlefront and replenish ammunition, fuel, and other material. The Army has recommended that Crusader incorporate new and innovative technologies to improve performance and safety. One conceptual design proposes a robotic resupply boom on the resupply vehicle to upload supplies to the howitzer. The resupply boom would normally be retracted inside the resupply vehicle during transit. When the two vehicles are within range of the resupply boom, the boom would be extended to a receiving port on the howitzer. In order to reduce exposure to small arms fire or nuclear, biological, and chemical hazards, the crew would remain inside the resupply vehicle during the resupply operation. The process of extending the boom and linking with the receiving port is called docking. A boom operator would be designated to maneuver the boom into contact with the receiving port using a mechanical joystick. The docking operation depends greatly upon the skill of the boom operator to manipulate the boom into docking position. Computer simulations at the National Aeronautics and Space Administration have shown that computer-assisted or autonomous docking can improve the ability of the operator to dock safely and quickly. This document describes the present status of the Crusader Autonomous Docking System (CADS) implemented at Oak Ridge National laboratory (ORNL). The purpose of the CADS project is to determine the feasibility and performance limitations of vision systems to satisfy the autonomous docking requirements for Crusader and conduct a demonstration under controlled conditions.

  8. SU-E-T-50: Automatic Validation of Megavoltage Beams Modeled for Clinical Use in Radiation Therapy

    SciTech Connect (OSTI)

    Melchior, M [Terapia Radiante S.A., La Plata, Buenos Aires (Argentina); Salinas Aranda, F [Vidt Centro Medico, Ciudad Autonoma De Buenos Aires (Argentina); 21st Century Oncology, Ft. Myers, FL (United States); Sciutto, S [Universidad Nacional de La Plata, La Plata, Buenos Aires (Argentina); Dodat, D [Centro Medico Privado Dean Funes, La Plata, Buenos Aires (Argentina); Larragueta, N [Universidad Nacional de La Plata, La Plata, Buenos Aires (Argentina); Centro Medico Privado Dean Funes, La Plata, Buenos Aires (Argentina)

    2014-06-01T23:59:59.000Z

    Purpose: To automatically validate megavoltage beams modeled in XiO™ 4.50 (Elekta, Stockholm, Sweden) and Varian Eclipse™ Treatment Planning Systems (TPS) (Varian Associates, Palo Alto, CA, USA), reducing validation time before beam-on for clinical use. Methods: A software application that can automatically read and analyze DICOM RT Dose and W2CAD files was developed using MatLab integrated development environment.TPS calculated dose distributions, in DICOM RT Dose format, and dose values measured in different Varian Clinac beams, in W2CAD format, were compared. Experimental beam data used were those acquired for beam commissioning, collected on a water phantom with a 2D automatic beam scanning system.Two methods were chosen to evaluate dose distributions fitting: gamma analysis and point tests described in Appendix E of IAEA TECDOC-1583. Depth dose curves and beam profiles were evaluated for both open and wedged beams. Tolerance parameters chosen for gamma analysis are 3% and 3 mm dose and distance, respectively.Absolute dose was measured independently at points proposed in Appendix E of TECDOC-1583 to validate software results. Results: TPS calculated depth dose distributions agree with measured beam data under fixed precision values at all depths analyzed. Measured beam dose profiles match TPS calculated doses with high accuracy in both open and wedged beams. Depth and profile dose distributions fitting analysis show gamma values < 1. Relative errors at points proposed in Appendix E of TECDOC-1583 meet therein recommended tolerances.Independent absolute dose measurements at points proposed in Appendix E of TECDOC-1583 confirm software results. Conclusion: Automatic validation of megavoltage beams modeled for their use in the clinic was accomplished. The software tool developed proved efficient, giving users a convenient and reliable environment to decide whether to accept or not a beam model for clinical use. Validation time before beam-on for clinical use was reduced to a few hours.

  9. Inclusion of Scatter in HADES: Final Report

    SciTech Connect (OSTI)

    Aufderheide, M B

    2010-12-20T23:59:59.000Z

    Covert nuclear attack is one of the foremost threats facing the United States and is a primary focus of the War on Terror. The Domestic Nuclear Detection Office (DNDO), within the Department of Homeland Security (DHS), is chartered to develop, and improve domestic systems to detect and interdict smuggling for the illicit use of a nuclear explosive device, fissile material or radiologica1 material. The CAARS (Cargo Advanced Automated Radiography System) program is a major part of the DHS effort to enhance US security by harnessing cutting-edge technologies to detect radiological and nuclear threats at points of entry to the United States. DNDO has selected vendors to develop complete radiographic systems. It is crucial that the initial design and testing concepts for the systems be validated and compared prior to the substantial efforts to build and deploy prototypes and subsequent large-scale production. An important aspect of these systems is the scatter which interferes with imaging. Monte Carlo codes, such as MCNP (X-5 Monte Carlo Team, 2005 Revision) allow scatter to be calculatied, but these calculations are very time consuming. It would be useful to have a fast scatter estimation algorithm in a fast ray tracing code. We have been extending the HADES ray-tracing radiographic simulation code to model vendor systems in a flexible and quick fashion and to use this tool to study a variety of questions involving system performance and the comparative value of surrogates. To enable this work, HADES has been linked to the BRL-CAD library (BRL-CAD Open Source Project, 2010), in order to enable the inclusion of complex CAD geometries in simulations, scanner geometries have been implemented in HADES, and the novel detector responses have been included in HADES. A major extension of HADES which has been required by this effort is the inclusion of scatter in these radiographic simulations. Ray tracing codes generally do not easily allow the inclusion of scatter, because these codes define a source and a grid of detector pixels and only compute the attenuation along rays between these points. Scatter is an extremely complex set of processes which can involve rays which change directions many times between the source and detector. Scatter from outside the field of view of the imaging system, as well as within the field of view, can have an important role in image formation. In this report, we will describe how we implemented a treatment of scatter in HADES. We begin with a discussion of how we define scatter in Section 2, followed by a description of how single Compton scatter is now included in HADES in Section 3. In Section 4 we report a set of verification tests against MCNP and tests of how the technique scales with image size, number of scatters allowed and number of processors used in the calculations. In Section 5, we describe how we plan to extend this approach to other forms of scatter and conclude in Section 6. It should be emphasized that the purpose of this report is to show that a form of scatter has been implemented in HADES and has been verified against MCNP. Validation, the process of comparing simulation and experiment, is a future task.

  10. Role of Ceacam1 in VEGF induced vasculogenesis of murine embryonic stem cell-derived embryoid bodies in 3D culture

    SciTech Connect (OSTI)

    Gu, Angel [Department of Immunology, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, CA 91010 (United States)] [Department of Immunology, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, CA 91010 (United States); Tsark, Walter [Department of Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010 (United States)] [Department of Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010 (United States); Holmes, Kathryn V. [Department of Microbiology, University of Colorado Health Sciences, Aurora, CO 80045 (United States)] [Department of Microbiology, University of Colorado Health Sciences, Aurora, CO 80045 (United States); Shively, John E., E-mail: jshively@coh.org [Department of Immunology, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, CA 91010 (United States)

    2009-06-10T23:59:59.000Z

    CEACAM1 (carcinoembryonic antigen-related cell adhesion molecule 1), a type I transmembrane glycoprotein involved in cell-cell adhesion has been shown to act as an angiogenic factor for mouse and human endothelial cells. Based on the ability of CEACAM1 to initiate lumen formation in human mammary epithelial cells grown in 3D culture (Matrigel), we hypothesized that murine CEACAM1 may play a similar role in vasculogenesis. In order to test this hypothesis, murine embryonic stem (ES) cells stimulated with VEGF were differentiated into embryoid bodies (EB) for 8 days (- 8-0 d) and transferred to Matrigel in the presence or absence of anti-CEACAM1 antibody for an additional 12 days (0-12 d). In the absence of anti-CEACAM1 antibody or in the presence of an isotype control antibody, the EB in Matrigel underwent extensive sprouting, generating lengthy vascular structures with well-defined lumina as demonstrated by confocal microscopy, electron microscopy, and immunohistochemical analysis. Both the length and architecture of the vascular tubes were inhibited by anti-CEACAM1 mAb CC1, a mAb that blocks the cell-cell adhesion functions of CEACAM1, thus demonstrating a critical role for this cell-cell adhesion molecule in generating and maintaining vasculogenesis. QRT-PCR analysis of the VEGF treated ES cells grown under conditions that convert them to EB revealed expression of Ceacam1 as early as - 5 to - 3 d reaching a maximum at day 0 at which time EBs were transferred to Matrigel, thereafter levels at first declined and then increased over time. Other markers of vasculogenesis including Pecam1, VE-Cad, and Tie-1 were not detected until day 0 when EBs were transferred to Matrigel followed by a steady increase in levels, indicating later roles in vasculogenesis. In contrast, Tie-2 and Flk-1 (VEGFR2) were detected on day five of EB formation reaching a maximum at day 0 on transfer to Matrigel, similar to Ceacam1, but after which Tie-2 declined over time, while Flk-1 increased over time. QRT-PCR analysis of the anti-CEACAM1 treated ES cells revealed a significant decrease in the expression of Ceacam1, Pecam1, Tie-1, and Flk-1, while VE-Cad and Tie-2 expression were unaffected. These results suggest that the expression and signaling of CEACAM1 may affect the expression of other factors known to play critical roles in vasculogenesis. Furthermore this 3D model of vasculogenesis in an environment of extracellular matrix may be a useful model for comparison to existing models of angiogenesis.

  11. The Lung Image Database Consortium (LIDC) and Image Database Resource Initiative (IDRI): A Completed Reference Database of Lung Nodules on CT Scans

    SciTech Connect (OSTI)

    NONE

    2011-02-15T23:59:59.000Z

    Purpose: The development of computer-aided diagnostic (CAD) methods for lung nodule detection, classification, and quantitative assessment can be facilitated through a well-characterized repository of computed tomography (CT) scans. The Lung Image Database Consortium (LIDC) and Image Database Resource Initiative (IDRI) completed such a database, establishing a publicly available reference for the medical imaging research community. Initiated by the National Cancer Institute (NCI), further advanced by the Foundation for the National Institutes of Health (FNIH), and accompanied by the Food and Drug Administration (FDA) through active participation, this public-private partnership demonstrates the success of a consortium founded on a consensus-based process. Methods: Seven academic centers and eight medical imaging companies collaborated to identify, address, and resolve challenging organizational, technical, and clinical issues to provide a solid foundation for a robust database. The LIDC/IDRI Database contains 1018 cases, each of which includes images from a clinical thoracic CT scan and an associated XML file that records the results of a two-phase image annotation process performed by four experienced thoracic radiologists. In the initial blinded-read phase, each radiologist independently reviewed each CT scan and marked lesions belonging to one of three categories (''nodule{>=}3 mm,''''nodule<3 mm,'' and ''non-nodule{>=}3 mm''). In the subsequent unblinded-read phase, each radiologist independently reviewed their own marks along with the anonymized marks of the three other radiologists to render a final opinion. The goal of this process was to identify as completely as possible all lung nodules in each CT scan without requiring forced consensus. Results: The Database contains 7371 lesions marked ''nodule'' by at least one radiologist. 2669 of these lesions were marked ''nodule{>=}3 mm'' by at least one radiologist, of which 928 (34.7%) received such marks from all four radiologists. These 2669 lesions include nodule outlines and subjective nodule characteristic ratings. Conclusions: The LIDC/IDRI Database is expected to provide an essential medical imaging research resource to spur CAD development, validation, and dissemination in clinical practice.

  12. Regularization approach for tomosynthesis X-ray inspection

    SciTech Connect (OSTI)

    Tigkos, Konstantinos; Hassler, Ulf; Holub, Wolfgang; Woerlein, Norbert; Rehak, Markus [Fraunhofer Development Center X-ray Technologies (EZRT), Dept. Application Specific Methods and Systems (AMS), Fraunhofer IIS, Flugplatzstraße 75, 90768 Fürth (Germany)

    2014-02-18T23:59:59.000Z

    X-ray inspection is intended to be used as an escalation technique for inspection of carbon fiber reinforced plastics (CFRP) in aerospace applications, especially in case of unclear indications from ultrasonic or other NDT modalities. Due to their large dimensions, most aerospace components cannot be scanned by conventional computed tomography. In such cases, X-ray Laminography may be applied, allowing a pseudo 3D slice-by-slice reconstruction of the sample with Tomosynthesis. However, due to the limited angle acquisition geometry, reconstruction artifacts arise, especially at surfaces parallel to the imaging plane. To regularize the Tomosynthesis approach, we propose an additional prescan of the object to detect outer sample surfaces. We recommend the use of contrasted markers which are temporarily attached to the sample surfaces. The depth position of the markers is then derived from that prescan. As long as the sample surface remains simple, few markers are required to fit the respective object surfaces. The knowledge about this surface may then be used to regularize the final Tomosynthesis reconstruction, performed with markerless projections. Eventually, it can also serve as prior information for an ART reconstruction or to register a CAD model of the sample. The presented work is carried out within the European FP7 project QUICOM. We demonstrate the proposed approach within a simulation study applying an acquisition geometry suited for CFRP part inspection. A practical verification of the approach is planned later in the project.

  13. Volume Decomposition and Feature Recognition for Hexahedral Mesh Generation

    SciTech Connect (OSTI)

    GADH,RAJIT; LU,YONG; TAUTGES,TIMOTHY J.

    1999-09-27T23:59:59.000Z

    Considerable progress has been made on automatic hexahedral mesh generation in recent years. Several automatic meshing algorithms have proven to be very reliable on certain classes of geometry. While it is always worth pursuing general algorithms viable on more general geometry, a combination of the well-established algorithms is ready to take on classes of complicated geometry. By partitioning the entire geometry into meshable pieces matched with appropriate meshing algorithm the original geometry becomes meshable and may achieve better mesh quality. Each meshable portion is recognized as a meshing feature. This paper, which is a part of the feature based meshing methodology, presents the work on shape recognition and volume decomposition to automatically decompose a CAD model into meshable volumes. There are four phases in this approach: (1) Feature Determination to extinct decomposition features, (2) Cutting Surfaces Generation to form the ''tailored'' cutting surfaces, (3) Body Decomposition to get the imprinted volumes; and (4) Meshing Algorithm Assignment to match volumes decomposed with appropriate meshing algorithms. The feature determination procedure is based on the CLoop feature recognition algorithm that is extended to be more general. Results are demonstrated over several parts with complicated topology and geometry.

  14. Simple visualization techniques for die casting part and die design. Final report, July 1, 1995--September 30, 1997

    SciTech Connect (OSTI)

    Miller, R.A.; Lu, S.C.; Rebello, A.B.

    1998-05-01T23:59:59.000Z

    The objective of this work was to develop and test die casting design evaluation techniques based on the visualization of geometric data that is related to potential defects of problems. Specifically, thickness information is used to provide insight into potential thermal problems in the part and die. Distance from the gate and a special type of animation of the fill pattern is used to provide an assessment of gate, vent and overflow locations. Techniques have been developed to convert part design information in the form of STL files to a volume-based representation called a voxel model. The use of STL files makes the process CAD system independent. Once in voxel form, methods that were developed in this work are used to identify thick regions in the part, thin regions in the part and/or die, distance from user specified entry locations (gates), and the qualitative depiction of the fill pattern. The methods were tested with a prototype implementation on the UNIX platform. The results of comparisons with numerical simulation and field reported defects were surprisingly good. The fill-related methods were also compared against short-shots and a water analog study using high speed video. The report contains the results of the testing plus detailed background material on the construction of voxel models, the methods used for displaying results, and the computational geometric reasoning methods used to create die casting-related information from the voxel model for display to the user.

  15. Simple visualization techniques for die casting part and die design. Final report, July 1, 1995--September 30, 1997

    SciTech Connect (OSTI)

    Miller, R.A.; Lu, S.C.; Rebello, A.B.

    1998-05-01T23:59:59.000Z

    The objective of this work was to develop and test die casting design evaluation techniques based on the visualization of geometric data that is related to potential defects of problems. Specifically, thickness information is used to provide insight into potential thermal problems in the part and die. Distance from the gate and a special type of animation of the fill pattern is used to provide an assessment of gate, vent and overflow locations. Techniques have been developed to convert part design information in the form of STL files to a volume-based representation called a voxel model. The use of STL files makes the process CAD system independent. Once in voxel form, methods that were developed in this work are used to identify thick regions in the part, thin regions in the part and/or die, distance from user specified entry locations (gates), and the qualitative depiction of the fill pattern. The methods were tested with a prototype implementation on the UNIX platform. The results of comparisons with numerical simulation and field reported defects were surprisingly good. The fill-related methods were also compared against short-shots and a water analog study using high speed video. The report contains the results of the testing plus detailed background material on the construction of voxel models, the methods used for displaying results, and the computational geometric reasoning methods used to create die casting-related information form the voxel model for display to the user.

  16. Applications of geographic information systems (GIS) in decision analysis for monitoring aquifer systems during oilfield development projects

    SciTech Connect (OSTI)

    Blundell, S.; Baldwin, D.O.; Anderson, N.J. [Integrated Geoscience, Inc., Helena, MT (United States)

    1996-06-01T23:59:59.000Z

    Geographic Information Systems (GIS) coupled with numerical ground water models provide a powerful Decision Support System (DSS) and visualization tool for monitoring aquifer systems during oilfield development projects. A GIS is a coupled software/hardware system that stores, processes, and displays a variety of data structures (raster, vector, TIN, CAD) that have been geographically referenced to some common map projection and coordinate system. Georeferencing allows the analyst to integrate diverse types of data layers into thematic maps for analysis of spatial trends and analyses. The integration of quasi 3-D numerical ground water models with GIS provides project managers with a Decision Support System (DSS) to assess potential impacts to aquifer systems during oilfield development projects. The rapid advancement in desktop PC computing power and data storage has allowed software developers to produce 32-bit GIS and data integration software applications. A variety of image processing, GIS, and numerical ground water modeling software will be used to demonstrate techniques for monitoring and visualizing the migration of an oilfield brine plume leaking during an oilfield development project. Emphasis will be placed on the integration of data structures and on database design to create a DSS within a desktop GIS to serve Project Managers during oilfield development.

  17. Extra Dimensions: 3D and Time in PDF Documentation

    SciTech Connect (OSTI)

    Graf, Norman A.; /SLAC

    2011-11-10T23:59:59.000Z

    High energy physics is replete with multi-dimensional information which is often poorly represented by the two dimensions of presentation slides and print media. Past efforts to disseminate such information to a wider audience have failed for a number of reasons, including a lack of standards which are easy to implement and have broad support. Adobe's Portable Document Format (PDF) has in recent years become the de facto standard for secure, dependable electronic information exchange. It has done so by creating an open format, providing support for multiple platforms and being reliable and extensible. By providing support for the ECMA standard Universal 3D (U3D) file format in its free Adobe Reader software, Adobe has made it easy to distribute and interact with 3D content. By providing support for scripting and animation, temporal data can also be easily distributed to a wide audience. In this talk, we present examples of HEP applications which take advantage of this functionality. We demonstrate how 3D detector elements can be documented, using either CAD drawings or other sources such as GEANT visualizations as input. Using this technique, higher dimensional data, such as LEGO plots or time-dependent information can be included in PDF files. In principle, a complete event display, with full interactivity, can be incorporated into a PDF file. This would allow the end user not only to customize the view and representation of the data, but to access the underlying data itself.

  18. Increased expression of microRNA-221 inhibits PAK1 in endothelial progenitor cells and impairs its function via c-Raf/MEK/ERK pathway

    SciTech Connect (OSTI)

    Zhang, Xiaoping; Mao, Haian [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China)] [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China); Chen, Jin-yuan [Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001 (China)] [Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001 (China); Wen, Shengjun [Department of Anatomy and neurobiology, School of Medicine, Tongji University, Shanghai 200072 (China)] [Department of Anatomy and neurobiology, School of Medicine, Tongji University, Shanghai 200072 (China); Li, Dan; Ye, Meng [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China)] [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China); Lv, Zhongwei, E-mail: zhongweilv126@126.com [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China)] [Department of Nuclear Medicine, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072 (China)

    2013-02-15T23:59:59.000Z

    Highlights: ? MicroRNA-221 is upregulated in the endothelial progenitor cells of atherosclerosis patients. ? PAK1 is a direct target of microRNA-221. ? MicroRNA-221 inhibits EPCs proliferation through c-Raf/MEK/ERK pathway. -- Abstract: Coronary artery disease (CAD) is associated with high mortality and occurs via endothelial injury. Endothelial progenitor cells (EPCs) restore the integrity of the endothelium and protect it from atherosclerosis. In this study, we compared the expression of microRNAs (miRNAs) in EPCs in atherosclerosis patients and normal controls. We found that miR-221 expression was significantly up-regulated in patients compared with controls. We predicted and identified p21/Cdc42/Rac1-activated kinase 1 (PAK1) as a novel target of miR-221 in EPCs. We also demonstrated that miR-221 targeted a putative binding site in the 3?UTR of PAK1, and absence of this site was inversely associated with miR-221 expression in EPCs. We confirmed this relationship using a luciferase reporter assay. Furthermore, overexpression of miR-221 in EPCs significantly decreased EPC proliferation, in accordance with the inhibitory effects induced by decreased PAK1. Overall, these findings demonstrate that miR-221 affects the MEK/ERK pathway by targeting PAK1 to inhibit the proliferation of EPCs.

  19. An introduction to the architectural surety program

    SciTech Connect (OSTI)

    Matalucci, R.V.; Miyoshi, D.S. [Sandia National Labs., Albuquerque, NM (United States). Security Systems and Technology Center

    1997-08-01T23:59:59.000Z

    This paper provides a summary introduction to the nationally emerging area of Architectural and Infrastructure Surety that is under development at Sandia National Laboratories. This program area, addressing technology requirements at the national level, includes four major elements: education, research, development, and application. It involves a risk management approach to solving problems of the as-built environment through the application of security, safety, and reliability principles developed in the nuclear weapons programs of the Department of Energy. The changing responsibilities of engineering design professionals is addressed in light of the increased public awareness of structural and facility systems vulnerabilities to malevolent, normal, and abnormal environment threats. A brief discussion is presented of the education and technology outreach programs initiated through an infrastructure surety graduate Civil Engineering Department course taught at the University of New Mexico and through the architectural surety workshops and conferences already held and planned for the future. A summary description is also presented of selected technologies with strong potential for application to specific national architectural and infrastructure surety concerns. These technologies include super-computational modeling and structural simulations, window glass fragmentation modeling, risk management procedures, instrumentation and health monitoring systems, and three-dimensional CAD virtual reality visualization techniques.

  20. Head Loss Evaluation in a PWR Reactor Vessel Using CFD Analysis

    SciTech Connect (OSTI)

    Ji Hwan Jeong; Jong Pil Park [School of Mechanical Engineering, Pusan National University, Enesys Jangjeon-dong, Geumjeong-gu, Busan (Korea, Republic of); Byoung-Sub Han [Jangdae-dong, Yusong-gu, Daejeon (Korea, Republic of)

    2006-07-01T23:59:59.000Z

    Nuclear vendors and utilities perform lots of simulations and analyses in order to ensure the safe operation of nuclear power plants (NPPs). In general, the simulations are carried out using vendor-specific design codes and best-estimate system analysis codes and most of them were developed based on 1-dimensional lumped parameter models. During the past decade, however, computers, parallel computation methods, and 3-dimensional computational fluid dynamics (CFD) codes have been dramatically enhanced. It is believed to be beneficial to take advantage of advanced commercial CFD codes in safety analysis and design of NPPs. The present work aims to analyze the flow distribution in downcomer and lower plenum of Korean standard nuclear power plants (KSNPs) using STAR-CD. The lower plenum geometry of a PWR is very complicated since there are so many reactor internals, which hinders in CFD analysis for real reactor geometry up to now. The present work takes advantage of 3D CAD model so that real geometry of lower plenum is used. The results give a clear figure about flow fields in the reactor vessel, which is one of major safety concerns. The calculated pressure drop across downcomer and lower plenum appears to be in good agreement with the data in engineering calculation note. A algorithm which can evaluate head loss coefficient which is necessary for thermal-hydraulic system code running was suggested based on this CFD analysis results. (authors)

  1. Airport Viz - a 3D Tool to Enhance Security Operations

    SciTech Connect (OSTI)

    Koch, Daniel B [ORNL

    2006-01-01T23:59:59.000Z

    In the summer of 2000, the National Safe Skies Alliance (NSSA) awarded a project to the Applied Visualization Center (AVC) at the University of Tennessee, Knoxville (UTK) to develop a 3D computer tool to assist the Federal Aviation Administration security group, now the Transportation Security Administration (TSA), in evaluating new equipment and procedures to improve airport checkpoint security. A preliminary tool was demonstrated at the 2001 International Aviation Security Technology Symposium. Since then, the AVC went on to construct numerous detection equipment models as well as models of several airports. Airport Viz has been distributed by the NSSA to a number of airports around the country which are able to incorporate their own CAD models into the software due to its unique open architecture. It provides a checkpoint design and passenger flow simulation function, a layout design and simulation tool for checked baggage and cargo screening, and a means to assist in the vulnerability assessment of airport access points for pedestrians and vehicles.

  2. Automated assessment of bilateral breast volume asymmetry as a breast cancer biomarker during mammographic screening

    SciTech Connect (OSTI)

    Williams, Alex C [ORNL; Hitt, Austin N [ORNL; Voisin, Sophie [ORNL; Tourassi, Georgia [ORNL

    2013-01-01T23:59:59.000Z

    The biological concept of bilateral symmetry as a marker of developmental stability and good health is well established. Although most individuals deviate slightly from perfect symmetry, humans are essentially considered bilaterally symmetrical. Consequently, increased fluctuating asymmetry of paired structures could be an indicator of disease. There are several published studies linking bilateral breast size asymmetry with increased breast cancer risk. These studies were based on radiologists manual measurements of breast size from mammographic images. We aim to develop a computerized technique to assess fluctuating breast volume asymmetry in screening mammograms and investigate whether it correlates with the presence of breast cancer. Using a large database of screening mammograms with known ground truth we applied automated breast region segmentation and automated breast size measurements in CC and MLO views using three well established methods. All three methods confirmed that indeed patients with breast cancer have statistically significantly higher fluctuating asymmetry of their breast volumes. However, statistically significant difference between patients with cancer and benign lesions was observed only for the MLO views. The study suggests that automated assessment of global bilateral asymmetry could serve as a breast cancer risk biomarker for women undergoing mammographic screening. Such biomarker could be used to alert radiologists or computer-assisted detection (CAD) systems to exercise increased vigilance if higher than normal cancer risk is suspected.

  3. Towards Integrated Design and Modeling of High Field Accelerator Magnets

    SciTech Connect (OSTI)

    Caspi, S.; Ferracin, P.

    2006-06-01T23:59:59.000Z

    The next generation of superconducting accelerator magnets will most likely use a brittle conductor (such as Nb{sub 3}Sn), generate fields around 18 T, handle forces that are 3-4 times higher than in the present LHC dipoles, and store energy that starts to make accelerator magnets look like fusion magnets. To meet the challenge and reduce the complexity, magnet design will have to be more innovative and better integrated. The recent design of several high field superconducting magnets have now benefited from the integration between CAD (e.g. ProE), magnetic analysis tools (e.g. TOSCA) and structural analysis tools (e.g. ANSYS). Not only it is now possible to address complex issues such as stress in magnet ends, but the analysis can be better detailed an extended into new areas previously too difficult to address. Integrated thermal, electrical and structural analysis can be followed from assembly and cool-down through excitation and quench propagation. In this paper we report on the integrated design approach, discuss analysis results and point out areas of future interest.

  4. Performance Evaluation and Optimization of Diesel Fuel Properties and Chemistry in an HCCI Engine

    SciTech Connect (OSTI)

    Bunting, Bruce G [ORNL] [ORNL; Eaton, Scott J [ORNL] [ORNL; Crawford, Robert W [Rincon Ranch Consulting] [Rincon Ranch Consulting

    2009-01-01T23:59:59.000Z

    The nine CRC fuels for advanced combustion engines (FACE fuels) have been evaluated in a simple, premixed HCCI engine under varying conditions of fuel rate, air-fuel ratio, and intake temperature. Engine performance was found to vary mainly as a function of combustion phasing as affected by fuel cetane and engine control variables. The data was modeled using statistical techniques involving eigenvector representation of the fuel properties and engine control variables, to define engine response and allow optimization across the fuels for best fuel efficiency. In general, the independent manipulation of intake temperature and air-fuel ratio provided some opportunity for improving combustion efficiency of a specific fuel beyond the direct effect of targeting the optimum combustion phasing of the engine (near 5 CAD ATDC). High cetane fuels suffer performance loss due to easier ignition, resulting in lower intake temperatures, which increase HC and CO emissions and result in the need for more advanced combustion phasing. The FACE fuels also varied in T90 temperature and % aromatics, independent of cetane number. T90 temperature was found to have an effect on engine performance when combined with high centane, but % aromatics did not, when evaluated independently of cetane and T90.

  5. The SMC (Short Model Coil) Nb3Sn Program: FE Analysis with 3D Modeling

    E-Print Network [OSTI]

    Kokkinos, C; Guinchard, M; Karppinen, M; Manil, P; Perez, J C; Regis, F

    2012-01-01T23:59:59.000Z

    The SMC (Short Model Coil) project aims at testing superconducting coils in racetrack configuration, wound with Nb3Sn cable. The degradation of the magnetic properties of the cable is studied by applying different levels of pre-stress. It is an essential step in the validation of procedures for the construction of superconducting magnets with high performance conductor. Two SMC assemblies have been completed and cold tested in the frame of a European collaboration between CEA (FR), CERN and STFC (UK), with the technical support from LBNL (US). The second assembly showed remarkable good quench results, reaching a peak field of 12.5T. This paper details the new 3D modeling method of the SMC, implemented using the ANSYS® Workbench environment. Advanced computer-aided-design (CAD) tools are combined with multi-physics Finite Element Analyses (FEA), in the same integrated graphic interface, forming a fully parametric model that enables simulation driven development of the SMC project. The magnetic and structural ...

  6. Better IAQ through integrating design tools for the HVACindustry

    SciTech Connect (OSTI)

    Laine, Tuomas; Kosonen, Risto; Hagstrom, Kim; Mustakallio, Panu; Yin, De-Wei; Haves, Philip; Chen, Qingyan

    2000-06-01T23:59:59.000Z

    There is currently no effective combination of interoperable design tools to cover all critical aspects of the HVAC design process. Existing design tools are separately available, but require expertise and operating time that is beyond the scope of a normal design project. For example, energy analysis and computational fluid dynamics (CFD) tools are not used in practical design, leading to poor indoor air quality and/or unnecessary energy consumption in buildings. A prototype integrated software tool for demonstration, process mapping and proof-of-concept purposes was developed under a new international, Finland/USA jointly funded development project BildIT. Individual design tools were simplified and adapted to specific applications and also integrated so that they can be used in a timely and effective manner by the designer. The core of the prototype linked together an architectural CAD system, a 3D space model, a CFD program and a building energy simulation program and it utilizes real product data from manufacturer's software. Also the complex building design, construction, maintenance and retrofit processes were mapped to get a template for the structure of the integrated design tool.

  7. Wide-angle ITER-prototype tangential infrared and visible viewing system for DIII-D

    SciTech Connect (OSTI)

    Lasnier, C. J., E-mail: lasnier@LLNL.gov; Allen, S. L.; Ellis, R. E.; Fenstermacher, M. E.; McLean, A. G.; Meyer, W. H.; Morris, K.; Seppala, L. G. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States); Crabtree, K. [College of Optics, University of Arizona, Tucson, Arizona 85721 (United States); Van Zeeland, M. A. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

    2014-11-15T23:59:59.000Z

    An imaging system with a wide-angle tangential view of the full poloidal cross-section of the tokamak in simultaneous infrared and visible light has been installed on DIII-D. The optical train includes three polished stainless steel mirrors in vacuum, which view the tokamak through an aperture in the first mirror, similar to the design concept proposed for ITER. A dichroic beam splitter outside the vacuum separates visible and infrared (IR) light. Spatial calibration is accomplished by warping a CAD-rendered image to align with landmarks in a data image. The IR camera provides scrape-off layer heat flux profile deposition features in diverted and inner-wall-limited plasmas, such as heat flux reduction in pumped radiative divertor shots. Demonstration of the system to date includes observation of fast-ion losses to the outer wall during neutral beam injection, and shows reduced peak wall heat loading with disruption mitigation by injection of a massive gas puff.

  8. TREKisM Issue 54

    E-Print Network [OSTI]

    1987-01-01T23:59:59.000Z

    I N U M M 0 C S L N J K IRK A R o L A VON MEN E Y R ARB I L I H RAE I X V L R E MHO C T POI L E L E C I N A J GSA RNA 0 U 0 P S A E S L U P MIL I S L RNA I L 0 H T P T K MUD 0 A N S W T R N I A T PAC A M M H H L R S A E 0 GAR T H DOE S BRA I N A UNA... Y U TTl C M H R L V ERR P ORE YON S K V K R N T P H H B 0 K COP S SOL I E R F Y D L X A L CAD E T U T B T H U CAR U H U 0 C N lOB 0 lOR 0 NAN FDA L TAU lOB I L NIH 0 S ADD R F G G N M RAE P E Y N T M N Y K S U LAP R I N 0 U A T L 0 0 S U L M H X F...

  9. Heat transfer at the mold-metal interface in permanent mold casting of aluminum alloys project. Quarterly project status report, April 1--June 30, 1998

    SciTech Connect (OSTI)

    Pehlke, R.D.; Hao, S.W.

    1998-06-30T23:59:59.000Z

    Extensive progress in development of an HTC (heat transfer coefficient) Evaluator and in the preparation of the experiments at CMI and Amcast have been achieved in the last three months. The interface of the HTC Evaluator has been developed in Visual C++ for the PC platform. It provides a tool to collect and store the published data on heat transfer coefficients in a database for further analysis. It also supports the mathematical model for evaluation of heat transfer coefficients. More than 100 papers related to this project have been cited and most of them have been collected. The preparation of the experiments at CMI is almost completed. A hockey-puck mold has been selected for the experiments for squeeze casting and semi-solid casting. A direct cavity pressure measurement system was purchased from Kistler. The pressure probes and data acquisition software as well as the necessary accessories have been delivered. The instrumented mold modification has been designed and the modifications completed. At Amcast Automotive, a new wheel-like mold for low-pressure permanent mold casting was designed. The CAD file for mold fabrication has been generated. The modeling of the casting has been done. An extensive survey on the ultrasonic gap formation measurement was fulfilled. It is concluded that the ultrasonic probe is capable of measuring a gap under the authors` casting conditions. In the last three months, four project meetings has been organized and held with the industrial partners.

  10. Estimating HAPs and radionuclide emissions from a laboratory complex at a nuclear processing site

    SciTech Connect (OSTI)

    Paul, R.A. [IT Corp., Durham, NC (United States); Faugl, T. [Westinghouse Savannah River Co., Aiken, SC (United States)

    1993-10-01T23:59:59.000Z

    A unique methodology was developed for conducting an air emission inventory (AEI) at a DOE nuclear processing facility. This methodology involved the use of computer-assisted design (CAD) drawings to document emission points, computerized process drawings to document industrial processes leading to emissions, and a computerized data base of AEI forms to document emission estimates and related process data. A detailed air emissions inventory for operating years 1985--1991 was recently implemented for the entire site using this methodology. One industrial area at the DOE Site is comprised of laboratory facilities that provide direct support to the nuclear reactor and recovery operations, developmental studies to support reactor and separation operations, and developmental studies to support waste handling and storage. The majority of the functions are conducted in a single large building complex wherein bench scale and pilot scale experiments are carried out involving radionuclides, hazardous air pollutants (HAP), and other chemicals reportable under the Clean Air Act Amendments (CAAA) and Superfund Amendments and Re-authorization Act (SARA) Title 111. The results of the inventory showed that HAP and radionuclide emissions from the laboratory complex were relatively minor.

  11. Electrical Generation for More-Electric Aircraft Using Solid Oxide Fuel Cells

    SciTech Connect (OSTI)

    Whyatt, Greg A.; Chick, Lawrence A.

    2012-04-01T23:59:59.000Z

    This report examines the potential for Solid-Oxide Fuel Cells (SOFC) to provide electrical generation on-board commercial aircraft. Unlike a turbine-based auxiliary power unit (APU) a solid oxide fuel cell power unit (SOFCPU) would be more efficient than using the main engine generators to generate electricity and would operate continuously during flight. The focus of this study is on more-electric aircraft which minimize bleed air extraction from the engines and instead use electrical power obtained from generators driven by the main engines to satisfy all major loads. The increased electrical generation increases the potential fuel savings obtainable through more efficient electrical generation using a SOFCPU. However, the weight added to the aircraft by the SOFCPU impacts the main engine fuel consumption which reduces the potential fuel savings. To investigate these relationships the Boeing 787­8 was used as a case study. The potential performance of the SOFCPU was determined by coupling flowsheet modeling using ChemCAD software with a stack performance algorithm. For a given stack operating condition (cell voltage, anode utilization, stack pressure, target cell exit temperature), ChemCAD software was used to determine the cathode air rate to provide stack thermal balance, the heat exchanger duties, the gross power output for a given fuel rate, the parasitic power for the anode recycle blower and net power obtained from (or required by) the compressor/expander. The SOFC is based on the Gen4 Delphi planar SOFC with assumed modifications to tailor it to this application. The size of the stack needed to satisfy the specified condition was assessed using an empirically-based algorithm. The algorithm predicts stack power density based on the pressure, inlet temperature, cell voltage and anode and cathode inlet flows and compositions. The algorithm was developed by enhancing a model for a well-established material set operating at atmospheric pressure to reflect the effect of elevated pressure and to represent the expected enhancement obtained using a promising cell material set which has been tested in button cells but not yet used to produce full-scale stacks. The predictions for the effect of pressure on stack performance were based on literature. As part of this study, additional data were obtained on button cells at elevated pressure to confirm the validity of the predictions. The impact of adding weight to the 787-8 fuel consumption was determined as a function of flight distance using a PianoX model. A conceptual design for a SOFC power system for the Boeing 787 is developed and the weight estimated. The results indicate that the power density of the stacks must increase by at least a factor of 2 to begin saving fuel on the 787 aircraft. However, the conceptual design of the power system may still be useful for other applications which are less weight sensitive.

  12. Identification of Quantitative Trait Loci (QTL) and Candidate Genes for Cadmium Tolerance in Populus

    SciTech Connect (OSTI)

    Induri, Brahma R [West Virginia University; Ellis, Danielle R [West Virginia University; Slavov, Gancho [West Virginia University; Yin, Tongming [ORNL; Muchero, Wellington [ORNL; Tuskan, Gerald A [ORNL; DiFazio, Stephen P [West Virginia University

    2012-01-01T23:59:59.000Z

    Knowledge of genetic variation in response of Populus to heavy metals like cadmium (Cd) is an important step in understanding the underlying mechanisms of tolerance. In this study, a pseudo-backcross pedigree of Populus trichocarpa and Populus deltoides was characterized for Cd exposure. The pedigree showed significant variation for Cd tolerance thus enabling the identification of relatively tolerant and susceptible genotypes for intensive characterization. A total of 16 QTLs at logarithm of odds (LOD) ratio > 2.5, were found to be associated with total dry weight, its components, and root volume. Four major QTLs for total dry weight were mapped to different linkage groups in control (LG III) and Cd conditions (LG XVI) and had opposite allelic effects on Cd tolerance, suggesting that these genomic regions were differentially controlled. The phenotypic variation explained by Cd QTL for all traits under study varied from 5.9% to 11.6% and averaged 8.2% across all QTL. Leaf Cd contents also showed significant variation suggesting the phytoextraction potential of Populus genotypes, though heritability of this trait was low (0.22). A whole-genome microarray study was conducted by using two genotypes with extreme responses for Cd tolerance in the above study and differentially expressed genes were identified. Candidate genes including CAD2 (CADMIUM SENSITIVE 2), HMA5 (HEAVY METAL ATPase5), ATGTST1 (Arabidopsis thaliana Glutathione S-Transferase1), ATGPX6 (Glutathione peroxidase 6), and ATMRP 14 (Arabidopsis thaliana Multidrug Resistance associated Protein 14) were identified from QTL intervals and microarray study. Functional characterization of these candidate genes could enhance phytoremediation capabilities of Populus.

  13. Energy Efficient Industrialized Housing Research Program

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    Six area reported progress in the Energy Efficient Industrialized Housing Research Program during FY 1991. As part of Industry Guidance, meetings were held with steering and technical committees in computers, housing design and manufacturing. This task area enables the program to benefit from the expertise of industry representatives and communicate research results directly to them. As part of the Design Process performance specifications were being developed for the future housing system designed last year. These house designs coordinate and optimize predicted and desirable advances in computerized design processes, materials, components, and manufacturing automation to achieve energy efficiency at reduced first cost. Energy design software were being developed for CAD systems, stressed skin insulating core panel manufacturers; and a prototype energy sales tool. A prototype design was to be developed to integrate one or more subsystems with the building skin. As part of the Manufacturing Process we are developing a manufacturing process simulation and data base to help current and new entrants to the industrialized housing industry in assessing the impact of implementing new manufacturing techniques. For Evaluation we are developing testing plans for six units of housing on the UO campus and the stressed skin insulating core house to be constructed in Oregon. The DOW Chemical test structure will be retrofitted with a tile roof and retested to compare to the dome and conventional construction structures. Calibration of the wind tunnel will be completed so that laboratory tests can be conducted to simulate the ventilation cooling efficiency of houses in design. Research utilization and program management were either aspects of this program.

  14. Energy Efficient Industrialized Housing Research Program. Annual report, FY 1991

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    Six area reported progress in the Energy Efficient Industrialized Housing Research Program during FY 1991. As part of Industry Guidance, meetings were held with steering and technical committees in computers, housing design and manufacturing. This task area enables the program to benefit from the expertise of industry representatives and communicate research results directly to them. As part of the Design Process performance specifications were being developed for the future housing system designed last year. These house designs coordinate and optimize predicted and desirable advances in computerized design processes, materials, components, and manufacturing automation to achieve energy efficiency at reduced first cost. Energy design software were being developed for CAD systems, stressed skin insulating core panel manufacturers; and a prototype energy sales tool. A prototype design was to be developed to integrate one or more subsystems with the building skin. As part of the Manufacturing Process we are developing a manufacturing process simulation and data base to help current and new entrants to the industrialized housing industry in assessing the impact of implementing new manufacturing techniques. For Evaluation we are developing testing plans for six units of housing on the UO campus and the stressed skin insulating core house to be constructed in Oregon. The DOW Chemical test structure will be retrofitted with a tile roof and retested to compare to the dome and conventional construction structures. Calibration of the wind tunnel will be completed so that laboratory tests can be conducted to simulate the ventilation cooling efficiency of houses in design. Research utilization and program management were either aspects of this program.

  15. Direct laser powder deposition - 'State of the Art'

    SciTech Connect (OSTI)

    Sears, J.W.

    1999-11-01T23:59:59.000Z

    Recent developments on Laser Cladding and Rapid Prototyping have led to Solid Freeform Fabrication (SFF) technologies that produce net shape metal components by laser fusion of metal powder alloys. These processes are known by various names such as Directed Light Fabrication (DLF{trademark}), Laser Engineered Net Shaping (LENS{trademark}), and Direct Metal Deposition (DMD{trademark}) to name a few. These types of processes can be referred to as direct laser powder deposition (DLPD). DLPD involves fusing metal alloy powders in the focal point of a laser (or lasers) that is (are) being controlled by Computer Aided Design-Computer Aided Manufacturing (CAD-CAM) technology. DLPD technology has the capability to produce fully dense components with little need for subsequent processing. Research and development of DLPD is being conducted throughout the world. The list of facilities conducting work in this area continues to grow (over 25 identified in North America alone). Selective Laser Sintering (SLS{trademark}) is another type of SFF technology based on laser fusion of powder. The SLS technology was developed as a rapid prototyping technique, whereas DLPD is an extension of the laser cladding technology. Most of the effort in SLS has been directed towards plastics and ceramics. In SLS, the powder is pre-placed by rolling out a layer for each laser pass. The computer control selects where in the layer the powder will be sintered by the laser. Sequential layers are sintered similarly forming a shape. In DLPD, powder is fed directly into a molten metal pool formed at the focal point of the laser where it is melted. As the laser moves on the material it rapidly resolidifies to form a shape. This talk elaborates on the state of these developments.

  16. Emerging Technologies in the Built Environment: Geographic Information Science (GIS), 3D Printing, and Additive Manufacturing

    SciTech Connect (OSTI)

    New, Joshua Ryan [ORNL

    2014-01-01T23:59:59.000Z

    Abstract 1: Geographic information systems emerged as a computer application in the late 1960s, led in part by projects at ORNL. The concept of a GIS has shifted through time in response to new applications and new technologies, and is now part of a much larger world of geospatial technology. This presentation discusses the relationship of GIS and estimating hourly and seasonal energy consumption profiles in the building sector at spatial scales down to the individual parcel. The method combines annual building energy simulations for city-specific prototypical buildings and commonly available geospatial data in a GIS framework. Abstract 2: This presentation focuses on 3D printing technologies and how they have rapidly evolved over the past couple of years. At a basic level, 3D printing produces physical models quickly and easily from 3D CAD, BIM (Building Information Models), and other digital data. Many AEC firms have adopted 3D printing as part of commercial building design development and project delivery. This presentation includes an overview of 3D printing, discusses its current use in building design, and talks about its future in relation to the HVAC industry. Abstract 3: This presentation discusses additive manufacturing and how it is revolutionizing the design of commercial and residential facilities. Additive manufacturing utilizes a broad range of direct manufacturing technologies, including electron beam melting, ultrasonic, extrusion, and laser metal deposition for rapid prototyping. While there is some overlap with the 3D printing talk, this presentation focuses on the materials aspect of additive manufacturing and also some of the more advanced technologies involved with rapid prototyping. These technologies include design of carbon fiber composites, lightweight metals processing, transient field processing, and more.

  17. R&D ERL: Beam dynamics, parameters, and physics to be learned

    SciTech Connect (OSTI)

    Kayran, D.

    2010-02-01T23:59:59.000Z

    The R&D ERL facility at BNL aims to demonstrate CW operation of ERL with average beam current in the range of 0.1-1 ampere, combined with very high efficiency of energy recovery. The ERL is being installed in one of the spacious bays in Bldg. 912 of the RHIC/AGS complex (Fig. 1). The bay is equipped with an overhead crane. The facility has a control room, two service rooms and a shielded ERL cave. The control room is located outside of the bay in a separate building. The single story house is used for a high voltage power supply for 1 MW klystron. The two-story unit houses a laser room, the CW 1 MW klystron with its accessories, most of the power supplies and electronics. The ERL R&D program has been started by the Collider Accelerator Department (C-AD) at BNL as an important stepping-stone for 10-fold increase of the luminosity of the Relativistic Heavy Ion Collider (RHIC) using relativistic electron cooling of gold ion beams with energy of 100 GeV per nucleon. Furthermore, the ERL R&D program extends toward a possibility of using 10-20 GeV ERL for future electron-hadron/heavy ion collider, MeRHIC/eRHIC. These projects are the driving force behind the development of ampere-class ERL technology, which will find many applications including light sources and FELs. The intensive R&D program geared towards the construction of the prototype ERL is under way: from development of high efficiency photo-cathodes to the development of new merging system compatible with emittance compensation.

  18. Large batch dimensional metrology demonstrated in the example of a LIGA fabricated spring.

    SciTech Connect (OSTI)

    Aigeldinger, Georg; Skala, Dawn M.; Ceremuga, Joseph T.

    2004-04-01T23:59:59.000Z

    Deep x-ray lithography in combination with electroforming is capable of producing high precision metal parts in small lot series. This study deals with a high aspect ratio structure with overall dimensions on the order of 10 mm x 7 mm x 1.5 mm, with the smallest line width being 150 {micro}m. The lateral deviation from the design is to be kept to a minimum, preferably below 5 {micro}m. To ensure adequate quality control, a semi-automated metrology technique has been established to measure all parts. While the paper will give a brief overview of all involved techniques, it focuses on the method to measure the top and bottom of the parts and the top of geometries following the process. The instrument used is a View Engineering Voyager V6x12 microscope, which is fully programmable. The microscope allows direct measurement of geometries but also is capable of saving all captured data as point clouds. These point clouds play a central role when evaluating part geometry. After measuring the part, the point cloud is compared to the computer aided design (CAD) contour of the part, using a commercially available software package. The challenge of proper edge lighting on a nickel alloy part is evaluated by varying lighting conditions systematically. Results of two conditions are presented along with a set of optimized parameters. With the introduced set of tools, process flow can be monitored by measuring geometries, e.g. linewidths in every step of the process line. An example for such analysis is given. After delivery of a large batch of parts, extensive numbers of datasets were available allowing the evaluation of the variation of part geometries. Discussed in detail is the deviation from part top to part bottom geometries indicating swelling of the PMMA mold in the electroplating bath.

  19. Evaluation of a multi-atlas based method for segmentation of cardiac CTA data: a large-scale, multicenter, and multivendor study

    SciTech Connect (OSTI)

    Kirisli, H. A.; Schaap, M.; Klein, S.; Papadopoulou, S. L.; Bonardi, M.; Chen, C. H.; Weustink, A. C.; Mollet, N. R.; Vonken, E. J.; Geest, R. J. van der; Walsum, T. van; Niessen, W. J. [Biomedical Imaging Group Rotterdam, Department of Radiology and Department of Medical Informatics, Erasmus MC, 3000 CA Rotterdam (Netherlands); Department of Cardiology, Erasmus MC, 3000 CA Rotterdam (Netherlands) and Department of Radiology, Erasmus MC, 3000 CA Rotterdam (Netherlands); Department of Radiology, Erasmus MC, 3000 CA Rotterdam (Netherlands); Department of Cardiology, Erasmus MC, 3000 CA Rotterdam (Netherlands) and Department of Radiology, Erasmus MC, 3000 CA Rotterdam (Netherlands); Department of Radiology, University Medical Center Utrecht, 3584 CX Utrecht (Netherlands); Department of Radiology, Leiden University Medical Center, 2300 RC Leiden (Netherlands); Biomedical Imaging Group Rotterdam, Department of Radiology and Department of Medical Informatics, Erasmus MC, 3000 CA Rotterdam (Netherlands); Biomedical Imaging Group Rotterdam, Department of Radiology and Department of Medical Informatics, Erasmus MC, 3000 CA Rotterdam (Netherlands) and Faculty of Applied Sciences, Delft University of Technology, 2628 CJ Delft (Netherlands)

    2010-12-15T23:59:59.000Z

    Purpose: Computed tomography angiography (CTA) is increasingly used for the diagnosis of coronary artery disease (CAD). However, CTA is not commonly used for the assessment of ventricular and atrial function, although functional information extracted from CTA data is expected to improve the diagnostic value of the examination. In clinical practice, the extraction of ventricular and atrial functional information, such as stroke volume and ejection fraction, requires accurate delineation of cardiac chambers. In this paper, we investigated the accuracy and robustness of cardiac chamber delineation using a multiatlas based segmentation method on multicenter and multivendor CTA data. Methods: A fully automatic multiatlas based method for segmenting the whole heart (i.e., the outer surface of the pericardium) and cardiac chambers from CTA data is presented and evaluated. In the segmentation approach, eight atlas images are registered to a new patient's CTA scan. The eight corresponding manually labeled images are then propagated and combined using a per voxel majority voting procedure, to obtain a cardiac segmentation. Results: The method was evaluated on a multicenter/multivendor database, consisting of (1) a set of 1380 Siemens scans from 795 patients and (2) a set of 60 multivendor scans (Siemens, Philips, and GE) from different patients, acquired in six different institutions worldwide. A leave-one-out 3D quantitative validation was carried out on the eight atlas images; we obtained a mean surface-to-surface error of 0.94{+-}1.12 mm and an average Dice coefficient of 0.93 was achieved. A 2D quantitative evaluation was performed on the 60 multivendor data sets. Here, we observed a mean surface-to-surface error of 1.26{+-}1.25 mm and an average Dice coefficient of 0.91 was achieved. In addition to this quantitative evaluation, a large-scale 2D and 3D qualitative evaluation was performed on 1380 and 140 images, respectively. Experts evaluated that 49% of the 1380 images were very accurately segmented (below 1 mm error) and that 29% were accurately segmented (error between 1 and 3 mm), which demonstrates the robustness of the presented method. Conclusions: A fully automatic method for whole heart and cardiac chamber segmentation was presented and evaluated using multicenter/multivendor CTA data. The accuracy and robustness of the method were demonstrated by successfully applying the method to 1420 multicenter/multivendor data sets.

  20. Cache Energy Optimization Techniques For Modern Processors

    SciTech Connect (OSTI)

    Mittal, Sparsh [ORNL] ORNL

    2013-01-01T23:59:59.000Z

    Modern multicore processors are employing large last-level caches, for example Intel's E7-8800 processor uses 24MB L3 cache. Further, with each CMOS technology generation, leakage energy has been dramatically increasing and hence, leakage energy is expected to become a major source of energy dissipation, especially in last-level caches (LLCs). The conventional schemes of cache energy saving either aim at saving dynamic energy or are based on properties specific to first-level caches, and thus these schemes have limited utility for last-level caches. Further, several other techniques require offline profiling or per-application tuning and hence are not suitable for product systems. In this book, we present novel cache leakage energy saving schemes for single-core and multicore systems; desktop, QoS, real-time and server systems. Also, we present cache energy saving techniques for caches designed with both conventional SRAM devices and emerging non-volatile devices such as STT-RAM (spin-torque transfer RAM). We present software-controlled, hardware-assisted techniques which use dynamic cache reconfiguration to configure the cache to the most energy efficient configuration while keeping the performance loss bounded. To profile and test a large number of potential configurations, we utilize low-overhead, micro-architecture components, which can be easily integrated into modern processor chips. We adopt a system-wide approach to save energy to ensure that cache reconfiguration does not increase energy consumption of other components of the processor. We have compared our techniques with state-of-the-art techniques and have found that our techniques outperform them in terms of energy efficiency and other relevant metrics. The techniques presented in this book have important applications in improving energy-efficiency of higher-end embedded, desktop, QoS, real-time, server processors and multitasking systems. This book is intended to be a valuable guide for both newcomers and veterans in the field of cache power management. It will help graduate students, CAD tool developers and designers in understanding the need of energy efficiency in modern computing systems. Further, it will be useful for researchers in gaining insights into algorithms and techniques for micro-architectural and system-level energy optimization using dynamic cache reconfiguration. We sincerely believe that the ``food for thought'' presented in this book will inspire the readers to develop even better ideas for designing ``green'' processors of tomorrow.

  1. Predictive Engineering Tools for Injection-molded Long-Carbon-Fiber Thermoplastic Composites - FY 2014 Third Quarterly Report

    SciTech Connect (OSTI)

    Nguyen, Ba Nghiep; Sanborn, Scott E.; Mathur, Raj N.; Sharma, Bhisham; Sangid, Michael D.; Wang, Jin; Jin, Xiaoshi; Costa, Franco; Gandhi, Umesh N.; Mori, Steven; Tucker III, Charles L.

    2014-08-15T23:59:59.000Z

    This report describes the technical progresses made during the third quarter of FY 2014: 1) Autodesk introduced the options for fiber inlet condition to the 3D solver. These options are already available in the mid-plane/dual domain solver. 2) Autodesk improved the accuracy of 3D fiber orientation calculation around the gate. 3) Autodesk received consultant services from Prof. C.L. Tucker at the University of Illinois on the implementation of the reduced order model for fiber length, and discussed with Prof. Tucker the methods to reduce memory usage. 4) PlastiComp delivered to PNNL center-gated and edge-fan-gated 20-wt% to 30-wt% LCF/PP and LCF/PA66 (7”x7”x1/8”) plaques molded by the in-line direct injection molding (D-LFT) process. 5) PlastiComp molded ASTM tensile, flexural and impact bars under the same D-LFT processing conditions used for plaques for Certification of Assessment and ascertaining the resultant mechanical properties. 6) Purdue developed a new polishing routine, utilizing the automated polishing machine, to reduce fiber damage during surface preparation. 7) Purdue used a marker-based watershed segmentation routine, in conjunction with a hysteresis thresholding technique, for fiber segmentation during fiber orientation measurement. 8) Purdue validated Purdue’s fiber orientation measurement method using the previous fiber orientation data obtained from the Leeds machine and manually measured data by the University of Illinois. 9) PNNL conducted ASMI mid-plane analyses for a 30wt% LCF/PP plaque and compared the predicted fiber orientations with the measured data provided by Purdue University at the selected locations on this plaque. 10) PNNL put together the DOE 2014 Annual Merit Review (AMR) presentation with the team and presented it at the AMR meetings on June 17, 2014. 11) PNNL built ASMI dual domain models for the Toyota complex part and commenced mold filling analyses of the complex part with different wall thicknesses in order to support part molding. 12) Toyota and Magna discussed with PNNL on tool modification for molding the complex part. Toyota sent the CAD files of the complex part to PNNL to build ASMI models of the part for mold filling analysis to provide guidance to tooling and part molding.

  2. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis

    2005-08-01T23:59:59.000Z

    A Consortium, designed to assemble leaders in gas hydrates research, has been established at the University of Mississippi's Center for Marine Resources and Environmental Technology, CMRET. The primary objective of the group is to design and emplace a remote monitoring station on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station allows for the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to innovate research methods and construct necessary instrumentation. A year into the life of this cooperative agreement, we note the following achievements: (1) Progress on the vertical line array (VLA) of sensors: (A) Software and hardware upgrades to the data logger for the prototype vertical line array, including enhanced programmable gains, increased sampling rates, improved surface communications, (B) Cabling upgrade to allow installation of positioning sensors, (C) Adaptation of SDI's Angulate program to use acoustic slant ranges and DGPS data to compute and map the bottom location of the vertical array, (D) Progress in T''0'' delay and timing issues for improved control in data recording, (E) Successful deployment and recovery of the VLA twice during an October, 2003 cruise, once in 830m water, once in 1305m water, (F) Data collection and recovery from the DATS data logger, (G) Sufficient energy supply and normal functioning of the pressure compensated battery even following recharge after the first deployment, (H) Survival of the acoustic modem following both deployments though it was found to have developed a slow leak through the transducer following the second deployment due, presumably, to deployment in excess of 300m beyond its rating. (2) Progress on the Sea Floor Probe: (A) The Sea Floor Probe and its delivery system, the Multipurpose sled have been completed, (B) The probe has been modified to penetrate the <1m blanket of hemipelagic ooze at the water/sea floor interface to provide the necessary coupling of the accelerometer with the denser underlying sediments, (C) The MPS has been adapted to serve as an energy source for both p- and s-wave studies at the station as well as to deploy the horizontal line arrays and the SFP. (3) Progress on the Electromagnetic Bubble Detector and Counter: (A) Components for the prototype have been assembled, including a dedicated microcomputer to control power, readout and logging of the data, all at an acceptable speed, (B) The prototype has been constructed and preliminary data collected, (C) The construction of the field system is underway. (4) Progress on the Acoustic Systems for Monitoring Gas Hydrates: (A) Video recordings of bubbles emitted from a seep in Mississippi Canyon have been made from a submersible dive and the bubbles analyzed with respect to their size, number, and rise rate. These measurements have been used to determine the parameters to build the system capable of measuring gas escaping at the site of the monitoring station, (B) Laboratory tests performed using the project prototype have produced a conductivity data set that is being used to refine parameters of the field model. (5) Progress on the Mid-Infrared Sensor for Continuous Methane Monitoring: (A) Preliminary designs of mounting pieces for electrical components of ''sphereIR'' have been completed using AutoCAD software, (B) The preliminary design of an electronics baseplate has been completed and aided in the optimization of

  3. Demonstration of Air-Power-Assist Engine Technology for Clean Combustion and Direct Energy Recovery in Heavy Duty Application

    SciTech Connect (OSTI)

    Hyungsuk Kang; Chun Tai

    2010-05-01T23:59:59.000Z

    The first phase of the project consists of four months of applied research, starting from September 1, 2005 and was completed by December 31, 2005. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. Specifically, (i) A GT-Power{sup TM}engine simulation model was constructed to predict engine efficiency at various operating conditions. Efficiency was defined based on the second-law thermodynamic availability. (ii) The engine efficiency map generated by the engine simulation was then fed into a simplified vehicle model, which was constructed in the Matlab/Simulink environment, to predict fuel consumption of a refuse truck on a simple collection cycle. (iii) Design and analysis work supporting the concept of retrofitting an existing Sturman Industries Hydraulic Valve Actuation (HVA) system with the modifications that are required to run the HVA system with Air Power Assist functionality. A Matlab/Simulink model was used to calculate the dynamic response of the HVA system. Computer aided design (CAD) was done in Solidworks for mechanical design and hydraulic layout. At the end of Phase I, 11% fuel economy improvement was predicted. During Phase II, the engine simulation group completed the engine mapping work. The air handling group made substantial progress in identifying suppliers and conducting 3D modelling design. Sturman Industries completed design modification of the HVA system, which was reviewed and accepted by Volvo Powertrain. In Phase II, the possibility of 15% fuel economy improvement was shown with new EGR cooler design by reducing EGR cooler outlet temperature with APA engine technology from Air Handling Group. In addition, Vehicle Simulation with APA technology estimated 4 -21% fuel economy improvement over a wide range of driving cycles. During Phase III, the engine experimental setup was initiated at VPTNA, Hagerstown, MD. Air Handling system and HVA system were delivered to VPTNA and then assembly of APA engine was completed by June 2007. Functional testing of APA engine was performed and AC and AM modes testing were completed by October 2007. After completing testing, data analysis and post processing were performed. Especially, the models were instrumental in identifying some of the key issues with the experimental HVA system. Based upon the available engine test results during AC and AM modes, the projected fuel economy improvement over the NY composite cycle is 14.7%. This is close to but slightly lower than the originally estimated 18% from ADVISOR simulation. The APA project group demonstrated the concept of APA technology by using simulation and experimental testing. However, there are still exists of technical challenges to meet the original expectation of APA technology. The enabling technology of this concept, i.e. a fully flexible valve actuation system that can handle high back pressure from the exhaust manifold is identified as one of the major technical challenges for realizing the APA concept.

  4. Rapid additive manufacturing of MR compatible multipinhole collimators with selective laser melting of tungsten powder

    SciTech Connect (OSTI)

    Deprez, Karel; Vandenberghe, Stefaan; Van Audenhaege, Karen; Van Vaerenbergh, Jonas; Van Holen, Roel [MEDISIP, Department of Electronics and Information Systems, Ghent University-iMinds-IBiTech, De Pintelaan 185, B-9000 Ghent (Belgium); Layerwise NV, Kapeldreef 60, 3001 Leuven (Belgium); MEDISIP, Department of Electronics and Information Systems, Ghent University-iMinds-IBiTech, De Pintelaan 185, B-9000 Ghent (Belgium)

    2013-01-15T23:59:59.000Z

    Purpose: The construction of complex collimators with a high number of oblique pinholes is very labor intensive, expensive or is sometimes impossible with the current available techniques (drilling, milling or electric discharge machining). All these techniques are subtractive: one starts from solid plates and the material at the position of the pinholes is removed. The authors used a novel technique for collimator construction, called metal additive manufacturing. This process starts with a solid piece of tungsten on which a first layer of tungsten powder is melted. Each subsequent layer is then melted on the previous layer. This melting is done by selective laser melting at the locations where the CAD design file defines solid material. Methods: A complex collimator with 20 loftholes with 500 {mu}m diameter pinhole opening was designed and produced (16 mm thick and 70 Multiplication-Sign 52 mm{sup 2} transverse size). The density was determined, the production accuracy was measured (GOM ATOS II Triple Scan, Nikon AZ100M microscope, Olympus IMT200 microscope). Point source measurements were done by mounting the collimator on a SPECT detector. Because there is increasing interest in dual-modality SPECT-MR imaging, the collimator was also positioned in a 7T MRI scanner (Bruker Pharmascan). A uniform phantom was acquired using T1, T2, and T2* sequences to check for artifacts or distortion of the phantom images due to the collimator presence. Additionally, three tungsten sample pieces (250, 500, and 750 {mu}m thick) were produced. The density, attenuation (140 keV beam), and uniformity (GE eXplore Locus SP micro-CT) of these samples were measured. Results: The density of the collimator was equal to 17.31 {+-} 0.10 g/cm{sup 3} (89.92% of pure tungsten). The production accuracy ranges from -260 to +650 {mu}m. The aperture positions have a mean deviation of 5 {mu}m, the maximum deviation was 174 {mu}m and the minimum deviation was -122 {mu}m. The mean aperture diameter is 464 {+-} 19 {mu}m. The calculated and measured sensitivity and resolution of point sources at different positions in the field-of-view agree well. The measured and expected attenuation of the three sample pieces are in a good agreement. There was no influence of the 7T magnetic field on the collimator (which is paramagnetic) and minimal distortion was noticed on the MR scan of the uniform phantom. Conclusions: Additive manufacturing is a very promising technique for the production of complex multipinhole collimators and may also be used for producing other complex collimators. The cost of this technique is only related to the amount of powder needed and the time it takes to have the collimator built. The timeframe from design to collimator production is significantly reduced.

  5. KIVA-Update June 2012

    SciTech Connect (OSTI)

    Carrington, David B [Los Alamos National Laboratory

    2012-06-07T23:59:59.000Z

    Development of a fractional step, a Predictor-Corrector Split (PCS), or what is often known as a projection method combining hp-adaptive system in a Finite Element Method (FEM) for combustion modeling has been achieved. This model will advance the accuracy and range of applicability of the KIVA combustion model and software used typically for internal combustion engine modeling. This abstract describes a PCS hp-adaptive FEM model for turbulent reactive flow spanning all velocity regimes and fluids that is being developed for the new KIVA combustion algorithm, particularly for internal combustion engines. The method and general solver is applicable to Newtonian and non- Newtonian fluids and also for incompressible solids, porous media, solidification modeling, and fluid structure interaction problems. The fuel injection and injector modeling could easily benefit from the capability of solving the fluid structure interaction problem in an injector, helping to understand cycle to cycle variation and cavitation. This is just one example where the new algorithm differs from the old, in addition to handling Conjugate Heat Transfer (CHT), although there a numerous features that makes the new system more robust and accurate. In these ways, the PCS hp-adaptive algorithm does not compete with commercial software packages, those often used in conjunction with the currently distributed KIVA codes for engine combustion modeling. In addition, choosing a local ALE method on immersed moving parts represented by overset grid that is 2nd order spatially accurate, allows for easy grid generation from CAD to fluid grid while also provide for robustness in handling any possible moving parts configuration without any code modifications. The combined methods employed produce a minimal amount of computational effort as compared to fully resolved grids at the same accuracy. We demonstrate the solver on benchmark problems for the all flow regimes as follows: (1) 2-D backward-facing step using h-adaption, (2) 2-D driven cavity, (3) 2-D natural convection in a differentially heat cavity with h-adaptation, (4) NACA 0012 airfoil in 2-D, (5) supersonic flows over compression ramps, (6) 2-D natural convection in a differentially heat cavity with hp-adaptation, (7) 3-D natural convection in a differentially heat sphere with hp-adaptation. In addition, we show the new moving parts algorithm for working for a 2-D piston; the immersed moving parts method also for valves and pistons, vanes, etc... The movement is performed using an overset grid method and is 2nd order accurate in space, and never produces a tangle grid, that is, robust system at any resolution and any parts configuration. We also show CHT for the currently distributed KIVA-4mpi software and some fairly automatic grid generation using Sandia's Cubit unstructured grid generator. A new electronic web-based manual for KIVA-4 has been developed as well.

  6. Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains

    SciTech Connect (OSTI)

    Carnegie Mellon University

    2008-09-30T23:59:59.000Z

    Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non-destructive Evaluation (NDE) and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The resulting robot-train system with CAD renderings of the individual modules. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. The prototype robot system was built and tested indoors and outdoors, outfitted with a Remote-Field Eddy Current (RFEC) sensor integrated as its main NDE sensor modality. An angled launcher, allowing for live launching and retrieval, was also built to suit custom angled launch-fittings from TDW. The prototype vehicle and launcher systems are shown. The complete system, including the in-pipe robot train, launcher, integrated NDE-sensor and real-time video and control console and NDE-data collection and -processing and real-time display, were demonstrated to all sponsors prior to proceeding into final field-trials--the individual components and setting for said acceptance demonstration are shown. The launcher-tube was also used to verify that the vehicle system is capable of operating in high-pressure environments, and is safely deployable using proper evacuating/purging techniques for operation in the po