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NIF ICCS Test Controller for Automated & Manual Testing

Description: The National Ignition Facility (NIF) Integrated Computer Control System (ICCS) is a large (1.5 MSLOC), hierarchical, distributed system that controls all aspects of the NIF laser [1]. The ICCS team delivers software updates to the NIF facility throughout the year to support shot operations and commissioning activities. In 2006, there were 48 releases of ICCS: 29 full releases, 19 patches. To ensure the quality of each delivery, thousands of manual and automated tests are performed using the ICC… more
Date: October 3, 2007
Creator: Zielinski, J S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CLARA: A Contemporary Approach to Physics Data Processing

Description: In traditional physics data processing (PDP) systems, data location is static and is accessed by analysis applications. In comparison, CLARA (CLAS12 Reconstruction and Analysis framework) is an environment where data processing algorithms filter continuously flowing data. In CLARA's domain of loosely coupled services, data is not stored, but rather flows from one service to another, mutating constantly along the way. Agents, performing event processing, can then subscribe to particular data/eve… more
Date: December 1, 2011
Creator: V Gyurjyan, D Abbott, J Carbonneau, G Gilfoyle, D Heddle, G Heyes, S Paul, C Timmer, D Weygand, E Wolin
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Lambda Station: Alternate Network Path Forwarding for Production SciDAC Applications

Description: The LHC era will start very soon, creating immense data volumes capable of demanding allocation of an entire network circuit for task-driven applications. Circuit-based alternate network paths are one solution to meeting the LHC high bandwidth network requirements. The Lambda Station project is aimed at addressing growing requirements for dynamic allocation of alternate network paths. Lambda Station facilitates the rerouting of designated traffic through site LAN infrastructure onto so-called '… more
Date: September 1, 2007
Creator: Grigoriev, Maxim; Bobyshev, Andrey; Crawford, Matt; DeMar, Phil; Grigaliunas, Vyto; Moibenko, Alexander et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Risk Reduction With a Fuzzy Expert Exploration Tool

Description: Incomplete or sparse information on geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. Expert systems have been developed and used in several disciplines and industries, including medical diagnostics, with favorable results. A state-of-the-art exploration ''expert'' tool, relying on a computerized data base and computer maps generated by neural networks, is proposed through the use of ''fuzzy'' logic, a relatively new mathematical… more
Date: June 30, 2000
Creator: Weiss, William W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[Chuck Loeb tribute]

Description: Video of a tribute to American jazz guitarist Chuck Loeb. The video includes footage from AirCom Radio Network discussing the death of Chuck Loeb, and performances by Chuck Loeb at the Java Jazz Festival and the MI College of Contemporary Music.
Date: August 30, 2017
Duration: 1 hour 4 minutes 41 seconds
Creator: Latte Media Group
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Improvements in fast-response flood modeling: desktop parallel computing and domain tracking

Description: It is becoming increasingly important to have the ability to accurately forecast flooding, as flooding accounts for the most losses due to natural disasters in the world and the United States. Flood inundation modeling has been dominated by one-dimensional approaches. These models are computationally efficient and are considered by many engineers to produce reasonably accurate water surface profiles. However, because the profiles estimated in these models must be superimposed on digital elevati… more
Date: January 1, 2009
Creator: Judi, David R; Mcpherson, Timothy N & Burian, Steven J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Overview of the National Ignition Facility Distributed Computer Control System

Description: The Integrated Computer Control System (ICCS) for the National Ignition Facility (NIF) is a layered architecture of 300 front-end processors (FEP) coordinated by supervisor subsystems including automatic beam alignment and wavefront control, laser and target diagnostics, pulse power, and shot control timed to 30 ps. FEP computers incorporate either VxWorks on PowerPC or Solaris on UltraSPARC processors that interface to over 45,000 control points attached to VME-bus or PCI-bus crates respective… more
Date: October 15, 2001
Creator: Lagin, L J; Bettenhausen, R C; Carey, R A; Estes, C M; Fisher, J M; Krammen, J E et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Complete Calculation of Evaluated Maxwellian-Averaged Cross Sections and Their Uncertainties for S-Process Nucleosynthesis

Description: Present contribution represents a significant improvement of our previous calculation of Maxwellian-averaged cross sections and astrophysical reaction rates. Addition of newly-evaluated neutron reaction libraries, such as ROSFOND and Low-Fidelity Covariance Project, and improvements in data processing techniques allowed us to extend it for entire range of sprocess nuclei, calculate Maxwellian-averaged cross section uncertainties for the first time, and provide additional insights on all current… more
Date: July 19, 2010
Creator: Pritychenko, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Principles of Faithful Execution in the implementation of trusted objects.

Description: We begin with the following definitions: Definition: A trusted volume is the computing machinery (including communication lines) within which data is assumed to be physically protected from an adversary. A trusted volume provides both integrity and privacy. Definition: Program integrity consists of the protection necessary to enable the detection of changes in the bits comprising a program as specified by the developer, for the entire time that the program is outside a trusted volume. For ease … more
Date: September 1, 2003
Creator: Tarman, Thomas David; Campbell, Philip LaRoche & Pierson, Lyndon George
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EXPLORING THE POTENTIAL OF SHORT-TIME FOURIER TRANSFORMS FOR ANALYZING SKIN CONDUCTANCE AND PUPILLOMETRY IN REAL-TIME APPLICATIONS

Description: The development of real-time predictors of mental workload is critical for the practical application of augmented cognition to human-machine systems. This paper explores a novel method based on a short-time Fourier transform (STFT) for analyzing galvanic skin conductance (SC) and pupillometry time-series data to extract estimates of mental workload with temporal bandwidth high-enough to be useful for augmented cognition applications. We tested the method in the context of a process control task… more
Date: September 1, 2008
Creator: Lew, Roger; Dyre, Brian P.; Werner, Steffen; Joe, Jeffrey C.; Wotring, Brian & Tran, Tuan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Orbit Display's Use of the Physics Application Framework

Description: At the SLAC National Accelerator Laboratory (SLAC) the Controls Department (CD) is developing a physics application framework based on the Java(tm) programming language developed by Sun Microsystems. This paper will discuss the first application developed using this approach: a new Orbit Display. The software is being developed by several individuals in reusable Java packages. It relies on the Experimental Physics and Industrial Control System (EPICS) toolkit for data collection and XAL - A Jav… more
Date: December 9, 2009
Creator: Zelazny, Michael; Chevtsov, Sergei; Chu, Chungming Paul; Fairley, Diane; Krejcik, Patrick; Natampalli, Partha et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Virtual Human Problem Solving Environments

Description: Abstract. Interest in complex integrated digital or virtual human modeling has seen a significant increase over the last decade. Coincident with that increased interest, Oak Ridge National Laboratory (ORNL) initiated the development of a human simulation tool, the Virtual Human. The Virtual Human includes a problem-solving environment (PSE) for implementing the integration of physiological models in different programming languages and connecting physiological function to anatomy. The Virtual Hu… more
Date: January 1, 2008
Creator: Ward, Richard C.; Pouchard, Line Catherine; Munro, Nancy B. & Fischer, Sarah Kathleen
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

National Ignition Facility and Managing Location, Component, and State

Description: The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory is a stadium-sized facility that contains a 192-beam, 1.8-Megajoule, 500-Terawatt, ultraviolet laser system coupled with a 10-meter diameter target chamber. There are over 6,200 Line Replaceable Units (LRUs) comprised of more than 104,000 serialized parts that make up the NIF. Each LRU is a modular unit typically composed of a mechanical housing, laser optics (glass, lenses, or mirrors), and utilities. To date, t… more
Date: July 25, 2011
Creator: Foxworthy, C.; Fung, T.; Beeler, R.; Li, J.; Dugorepec, J. & Chang, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CAD Tools for Creating Space-filing 3D Escher Tiles

Description: We discuss the design and implementation of CAD tools for creating decorative solids that tile 3-space in a regular, isohedral manner. Starting with the simplest case of extruded 2D tilings, we describe geometric algorithms used for maintaining boundary representations of 3D tiles, including a Java implementation of an interactive constrained Delaunay triangulation library and a mesh-cutting algorithm used in layering extruded tiles to create more intricate designs. Finally, we demonstrate a CA… more
Date: April 10, 2009
Creator: Howison, Mark & Sequin, Carlo H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Design, performance and control of the CDF Run II Data Acquisition System

Description: The Run II Data Acquisition (DAQ) system of the CDF Detector at Fermilab's Tevatron accelerator has been operational since July 2001. CDF DAQ has collected over 350 inverse picobarns of proton-antiproton collision data with high efficiency. An overview of the design of the pipelined, deadtime-less trigger and data acquisition system will be presented. CDF can receive and process a maximum crossing rate of once per 132 ns, with the rate reduced in three stages to the final output of approximatel… more
Date: May 1, 2005
Creator: Badgett, William F., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Risk Reduction With a Fuzzy Expert Exploration Tool

Description: Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathemat… more
Date: May 17, 2001
Creator: Weiss, William W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Java Tool Framework for Automation of Hardware Commissioning and Maintenance Procedures

Description: The National Ignition Facility (NIF) is a 192-beam laser system designed to study high energy density physics. Each beam line contains a variety of line replaceable units (LRUs) that contain optics, stepping motors, sensors and other devices to control and diagnose the laser. During commissioning and subsequent maintenance of the laser, LRUs undergo a qualification process using the Integrated Computer Control System (ICCS) to verify and calibrate the equipment. The commissioning processes are … more
Date: October 2, 2007
Creator: Ho, J. C.; Fisher, J. M.; Gordon, J. B.; Lagin, L. J. & West, S. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New local potential useful for genome annotation and 3D modeling

Description: A new potential energy function representing the conformational preferences of sequentially local regions of a protein backbone is presented. This potential is derived from secondary structure probabilities such as those produced by neural network-based prediction methods. The potential is applied to the problem of remote homolog identification, in combination with a distance dependent inter-residue potential and position-based scoring matrices. This fold recognition jury is implemented in a Ja… more
Date: July 17, 2003
Creator: Chandonia, John-Marc & Cohen, Fred E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NADS: A Web Applet for Manipulation and Graphical Viewing of Nuclear Data

Description: We have developed a program called NADS (Nuclear and Atomic Data System) which provides a web-based, user-friendly interface for viewing nuclear data. NADS uses a client/server model. The client is a Java applet that runs in a web browser. The server is a Python code that delivers pointwise data to the applet per user request and then plots the data. The data is also stored in tables for viewing and modifying. NADS can display 2-D, 3-D and 4-D (time sliced) data in a powerful, user-friendly env… more
Date: November 30, 2004
Creator: McKinley, M S; Beck, B R & McNabb, D P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SciDAC - The Scientific Data Management Center (http://sdmcenter.lbl.gov)

Description: In SciDAC SDM project, the main assignment to the Georgia Institute of Technology team (according to the proposed work) is to develop advanced information extraction and information integration technologies on top of the XWRAP technology originated from Georgia Tech [LPH01]. We have developed XWRAPComposer technology to enable the XWRAP code generator to generate Java information wrappers that are capable of extraction of data from multiple linked pages. These information wrappers are used as g… more
Date: June 20, 2005
Creator: Pu, Ling Liu Calton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Target Diagnostic Control System Implementation for the National Ignition Facility

Description: The extreme physics of targets shocked by NIF's 192-beam laser are observed by a diverse suite of diagnostics. Many diagnostics are being developed by collaborators at other sites, but ad hoc controls could lead to unreliable and costly operations. A Diagnostic Control System (DCS) framework for both hardware and software facilitates development and eases integration. Each complex diagnostic typically uses an ensemble of electronic instruments attached to sensors, digitizers, cameras, and other… more
Date: May 12, 2010
Creator: Shelton, R T; Kamperschroer, J H; Lagin, L J; Nelson, J R & O'Brien, D W
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Use of the target diagnostic control system in the National Ignition Facility

Description: The extreme physics of targets shocked by NIF's 192-beam laser are observed by a diverse suite of diagnostics including optical backscatter, time-integrated, time resolved and gated X-ray sensors, laser velocity interferometry, and neutron time of flight. Diagnostics to diagnose fusion ignition implosion and neutron emissions have been developed. A Diagnostic Control System (DCS) for both hardware and software facilitates development and eases integration. Each complex diagnostic typically uses… more
Date: July 25, 2011
Creator: Shelton, R; Lagin, L & Nelson, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evolving the Web-Based Distributed SI/PDO Architecture for High-Performance Visualization

Description: The Simulation Intranet/Product Database Operator (SI/PDO) project has developed a Web-based distributed object architecture for high performance scientific simulation. A Web-based Java interface guides designers through the design and analysis cycle via solid and analytical modeling, meshing, finite element simulation, and various forms of visualization. The SI/PDO architecture has evolved in steps towards satisfying Sandia's long-term goal of providing an end-to-end set of services for high f… more
Date: August 16, 2000
Creator: HOLMES,VICTOR P.; LINEBARGER,JOHN M.; MILLER,DAVID J.; VANDEWART,RUTHE LYNN & CROWLEY,CHARLES P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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