Science.gov

Sample records for underlying file system

  1. Accessing files in an internet - The Jade file system

    NASA Technical Reports Server (NTRS)

    Rao, Herman C.; Peterson, Larry L.

    1993-01-01

    Jade is a new distribution file system that provides a uniform way to name and access files in an internet environment. It makes two important contributions. First, Jade is a logical system that integrates a heterogeneous collection of existing file systems, where heterogeneous means that the underlying file systems support different file access protocols. Jade is designed under the restriction that the underlying file system may not be modified. Second, rather than providing a global name space, Jade permits each user to define a private name space. These private name spaces support two novel features: they allow multiple file systems to be mounted under one directory, and they allow one logical name space to mount other logical name spaces. A prototype of the Jade File System was implemented on Sun Workstations running Unix. It consists of interfaces to the Unix file system, the Sun Network File System, the Andrew File System, and FTP. This paper motivates Jade's design, highlights several aspects of its implementation, and illustrates applications that can take advantage of its features.

  2. Accessing files in an Internet: The Jade file system

    NASA Technical Reports Server (NTRS)

    Peterson, Larry L.; Rao, Herman C.

    1991-01-01

    Jade is a new distribution file system that provides a uniform way to name and access files in an internet environment. It makes two important contributions. First, Jade is a logical system that integrates a heterogeneous collection of existing file systems, where heterogeneous means that the underlying file systems support different file access protocols. Jade is designed under the restriction that the underlying file system may not be modified. Second, rather than providing a global name space, Jade permits each user to define a private name space. These private name spaces support two novel features: they allow multiple file systems to be mounted under one directory, and they allow one logical name space to mount other logical name spaces. A prototype of the Jade File System was implemented on Sun Workstations running Unix. It consists of interfaces to the Unix file system, the Sun Network File System, the Andrew File System, and FTP. This paper motivates Jade's design, highlights several aspects of its implementation, and illustrates applications that can take advantage of its features.

  3. The Global File System

    NASA Technical Reports Server (NTRS)

    Soltis, Steven R.; Ruwart, Thomas M.; OKeefe, Matthew T.

    1996-01-01

    The global file system (GFS) is a prototype design for a distributed file system in which cluster nodes physically share storage devices connected via a network-like fiber channel. Networks and network-attached storage devices have advanced to a level of performance and extensibility so that the previous disadvantages of shared disk architectures are no longer valid. This shared storage architecture attempts to exploit the sophistication of storage device technologies whereas a server architecture diminishes a device's role to that of a simple component. GFS distributes the file system responsibilities across processing nodes, storage across the devices, and file system resources across the entire storage pool. GFS caches data on the storage devices instead of the main memories of the machines. Consistency is established by using a locking mechanism maintained by the storage devices to facilitate atomic read-modify-write operations. The locking mechanism is being prototyped in the Silicon Graphics IRIX operating system and is accessed using standard Unix commands and modules.

  4. DMFS: A Data Migration File System for NetBSD

    NASA Technical Reports Server (NTRS)

    Studenmund, William

    1999-01-01

    I have recently developed dmfs, a Data Migration File System, for NetBSD. This file system is based on the overlay file system, which is discussed in a separate paper, and provides kernel support for the data migration system being developed by my research group here at NASA/Ames. The file system utilizes an underlying file store to provide the file backing, and coordinates user and system access to the files. It stores its internal meta data in a flat file, which resides on a separate file system. Our data migration system provides archiving and file migration services. System utilities scan the dmfs file system for recently modified files, and archive them to two separate tape stores. Once a file has been doubly archived, files larger than a specified size will be truncated to that size, potentially freeing up large amounts of the underlying file store. Some sites will choose to retain none of the file (deleting its contents entirely from the file system) while others may choose to retain a portion, for instance a preamble describing the remainder of the file. The dmfs layer coordinates access to the file, retaining user-perceived access and modification times, file size, and restricting access to partially migrated files to the portion actually resident. When a user process attempts to read from the non-resident portion of a file, it is blocked and the dmfs layer sends a request to a system daemon to restore the file. As more of the file becomes resident, the user process is permitted to begin accessing the now-resident portions of the file. For simplicity, our data migration system divides a file into two portions, a resident portion followed by an optional non-resident portion. Also, a file is in one of three states: fully resident, fully resident and archived, and (partially) non-resident and archived. For a file which is only partially resident, any attempt to write or truncate the file, or to read a non-resident portion, will trigger a file restoration. Truncations and writes are blocked until the file is fully restored so that a restoration which only partially succeed does not leave the file in an indeterminate state with portions existing only on tape and other portions only in the disk file system. We chose layered file system technology as it permits us to focus on the data migration functionality, and permits end system administrators to choose the underlying file store technology. We chose the overlay layered file system instead of the null layer for two reasons: first to permit our layer to better preserve meta data integrity and second to prevent even root processes from accessing migrated files. This is achieved as the underlying file store becomes inaccessible once the dmfs layer is mounted. We are quite pleased with how the layered file system has turned out. Of the 45 vnode operations in NetBSD, 20 (forty-four percent) required no intervention by our file layer - they are passed directly to the underlying file store. Of the twenty five we do intercept, nine (such as vop_create()) are intercepted only to ensure meta data integrity. Most of the functionality was concentrated in five operations: vop_read, vop_write, vop_getattr, vop_setattr, and vop_fcntl. The first four are the core operations for controlling access to migrated files and preserving the user experience. vop_fcntl, a call generated for a certain class of fcntl codes, provides the command channel used by privileged user programs to communicate with the dmfs layer.

  5. A Survey on Distributed File System Technology

    NASA Astrophysics Data System (ADS)

    Blomer, J.

    2015-05-01

    Distributed file systems provide a fundamental abstraction to location-transparent, permanent storage. They allow distributed processes to co-operate on hierarchically organized data beyond the life-time of each individual process. The great power of the file system interface lies in the fact that applications do not need to be modified in order to use distributed storage. On the other hand, the general and simple file system interface makes it notoriously difficult for a distributed file system to perform well under a variety of different workloads. This has lead to today's landscape with a number of popular distributed file systems, each tailored to a specific use case. Early distributed file systems merely execute file system calls on a remote server, which limits scalability and resilience to failures. Such limitations have been greatly reduced by modern techniques such as distributed hash tables, content-addressable storage, distributed consensus algorithms, or erasure codes. In the light of upcoming scientific data volumes at the exabyte scale, two trends are emerging. First, the previously monolithic design of distributed file systems is decomposed into services that independently provide a hierarchical namespace, data access, and distributed coordination. Secondly, the segregation of storage and computing resources yields to a storage architecture in which every compute node also participates in providing persistent storage.

  6. NASA work unit system file maintenance manual

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The NASA Work Unit System is a management information system for research tasks (i.e., work units) performed under NASA grants and contracts. It supplies profiles on research efforts and statistics on fund distribution. The file maintenance operator can add, delete and change records at a remote terminal or can submit punched cards to the computer room for batch update. The system is designed for file maintenance by a person with little or no knowledge of data processing techniques.

  7. DMFS: A Data Migration File System for NetBSD

    NASA Technical Reports Server (NTRS)

    Studenmund, William

    2000-01-01

    I have recently developed DMFS, a Data Migration File System, for NetBSD. This file system provides kernel support for the data migration system being developed by my research group at NASA/Ames. The file system utilizes an underlying file store to provide the file backing, and coordinates user and system access to the files. It stores its internal metadata in a flat file, which resides on a separate file system. This paper will first describe our data migration system to provide a context for DMFS, then it will describe DMFS. It also will describe the changes to NetBSD needed to make DMFS work. Then it will give an overview of the file archival and restoration procedures, and describe how some typical user actions are modified by DMFS. Lastly, the paper will present simple performance measurements which indicate that there is little performance loss due to the use of the DMFS layer.

  8. File under: L Web name: Library System, Advisory Committee on the University of Toronto [October 27, 1997] The Advisory Committee on the University of Toronto Library System [October 27, 1997] Location

    E-print Network

    Prodić, Aleksandar

    File under: L Web name: Library System, Advisory Committee on the University of Toronto [October 27, 1997] The Advisory Committee on the University of Toronto Library System [October 27, 1997] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/L/library%20system%20

  9. The Galley Parallel File System

    NASA Technical Reports Server (NTRS)

    Nieuwejaar, Nils; Kotz, David

    1996-01-01

    Most current multiprocessor file systems are designed to use multiple disks in parallel, using the high aggregate bandwidth to meet the growing I/0 requirements of parallel scientific applications. Many multiprocessor file systems provide applications with a conventional Unix-like interface, allowing the application to access multiple disks transparently. This interface conceals the parallelism within the file system, increasing the ease of programmability, but making it difficult or impossible for sophisticated programmers and libraries to use knowledge about their I/O needs to exploit that parallelism. In addition to providing an insufficient interface, most current multiprocessor file systems are optimized for a different workload than they are being asked to support. We introduce Galley, a new parallel file system that is intended to efficiently support realistic scientific multiprocessor workloads. We discuss Galley's file structure and application interface, as well as the performance advantages offered by that interface.

  10. The Galley Parallel File System

    NASA Technical Reports Server (NTRS)

    Nieuwejaar, Nils; Kotz, David

    1996-01-01

    As the I/O needs of parallel scientific applications increase, file systems for multiprocessors are being designed to provide applications with parallel access to multiple disks. Many parallel file systems present applications with a conventional Unix-like interface that allows the application to access multiple disks transparently. The interface conceals the parallelism within the file system, which increases the ease of programmability, but makes it difficult or impossible for sophisticated programmers and libraries to use knowledge about their I/O needs to exploit that parallelism. Furthermore, most current parallel file systems are optimized for a different workload than they are being asked to support. We introduce Galley, a new parallel file system that is intended to efficiently support realistic parallel workloads. We discuss Galley's file structure and application interface, as well as an application that has been implemented using that interface.

  11. 20 CFR 410.219 - Filing a claim under State workmen's compensation law; when filing such claim shall be considered...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...false Filing a claim under State workmen's compensation law; when filing such claim...219 Filing a claim under State workmen's compensation law; when filing such claim...payments under applicable State law; or (5) In any...

  12. File System Implementation: issues Unifying File Systems, Networks and

    E-print Network

    Sakellariou, Rizos

    ? Multiple servers? Tuesday, November 13, 2001 CS2051 Lecture 15 10 Virtual Memory and Storage · VM: ­ copies1 File System Implementation: issues Unifying File Systems, Networks and Virtual Memory Lecture 15 Reading: Bacon 7.6, 7.7 Tuesday, November 13, 2001 CS2051 Lecture 15 2 Free Space Management How to keep

  13. IRON FILE SYSTEMS Vijayan Prabhakaran

    E-print Network

    Yeom, Heon Young

    IRON FILE SYSTEMS by Vijayan Prabhakaran B.E. Computer Sciences (Regional Engineering College;v Abstract IRON FILE SYSTEMS Vijayan Prabhakaran Disk drives are widely used as a primary medium that measures their Internal RObustNess (IRON), which includes both failure detection and recovery techniques

  14. IRON FILE SYSTEMS Vijayan Prabhakaran

    E-print Network

    Swift, Michael

    IRON FILE SYSTEMS by Vijayan Prabhakaran B.E. Computer Sciences (Regional Engineering College #12; v Abstract IRON FILE SYSTEMS Vijayan Prabhakaran Disk drives are widely used as a primary medium that measures their Internal RObustNess (IRON), which includes both failure detection and recovery techniques

  15. The Jade File System. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Rao, Herman Chung-Hwa

    1991-01-01

    File systems have long been the most important and most widely used form of shared permanent storage. File systems in traditional time-sharing systems, such as Unix, support a coherent sharing model for multiple users. Distributed file systems implement this sharing model in local area networks. However, most distributed file systems fail to scale from local area networks to an internet. Four characteristics of scalability were recognized: size, wide area, autonomy, and heterogeneity. Owing to size and wide area, techniques such as broadcasting, central control, and central resources, which are widely adopted by local area network file systems, are not adequate for an internet file system. An internet file system must also support the notion of autonomy because an internet is made up by a collection of independent organizations. Finally, heterogeneity is the nature of an internet file system, not only because of its size, but also because of the autonomy of the organizations in an internet. The Jade File System, which provides a uniform way to name and access files in the internet environment, is presented. Jade is a logical system that integrates a heterogeneous collection of existing file systems, where heterogeneous means that the underlying file systems support different file access protocols. Because of autonomy, Jade is designed under the restriction that the underlying file systems may not be modified. In order to avoid the complexity of maintaining an internet-wide, global name space, Jade permits each user to define a private name space. In Jade's design, we pay careful attention to avoiding unnecessary network messages between clients and file servers in order to achieve acceptable performance. Jade's name space supports two novel features: (1) it allows multiple file systems to be mounted under one direction; and (2) it permits one logical name space to mount other logical name spaces. A prototype of Jade was implemented to examine and validate its design. The prototype consists of interfaces to the Unix File System, the Sun Network File System, and the File Transfer Protocol.

  16. Tuning HDF5 for Lustre File Systems

    SciTech Connect

    Howison, Mark; Koziol, Quincey; Knaak, David; Mainzer, John; Shalf, John

    2010-09-24

    HDF5 is a cross-platform parallel I/O library that is used by a wide variety of HPC applications for the flexibility of its hierarchical object-database representation of scientific data. We describe our recent work to optimize the performance of the HDF5 and MPI-IO libraries for the Lustre parallel file system. We selected three different HPC applications to represent the diverse range of I/O requirements, and measured their performance on three different systems to demonstrate the robustness of our optimizations across different file system configurations and to validate our optimization strategy. We demonstrate that the combined optimizations improve HDF5 parallel I/O performance by up to 33 times in some cases running close to the achievable peak performance of the underlying file system and demonstrate scalable performance up to 40,960-way concurrency.

  17. The Future of the Andrew File System

    ScienceCinema

    None

    2011-04-25

    The talk will discuss the ten operational capabilities that have made AFS unique in the distributed file system space and how these capabilities are being expanded upon to meet the needs of the 21st century. Derrick Brashear and Jeffrey Altman will present a technical road map of new features and technical innovations that are under development by the OpenAFS community and Your File System, Inc. funded by a U.S. Department of Energy Small Business Innovative Research grant. The talk will end with a comparison of AFS to its modern days competitors.

  18. The Future of the Andrew File System

    SciTech Connect

    2011-02-23

    The talk will discuss the ten operational capabilities that have made AFS unique in the distributed file system space and how these capabilities are being expanded upon to meet the needs of the 21st century. Derrick Brashear and Jeffrey Altman will present a technical road map of new features and technical innovations that are under development by the OpenAFS community and Your File System, Inc. funded by a U.S. Department of Energy Small Business Innovative Research grant. The talk will end with a comparison of AFS to its modern days competitors.

  19. Texas Natural Resources Information System. File Description Report.

    ERIC Educational Resources Information Center

    Interagency Council on Natural Resources and the Environment, Austin, TX. Texas Natural Resources Information System.

    Descriptions are given for the 164 computerized files that comprise the Texas Natural Resources Information System (TNRIS). The system provides natural resources information to federal, state, regional, and local and private entities. File descriptions are organized under the following data and information content areas: (1) base data, (2)…

  20. Improving File System Performance by Striping

    NASA Technical Reports Server (NTRS)

    Lam, Terance L.; Kutler, Paul (Technical Monitor)

    1998-01-01

    This document discusses the performance and advantages of striped file systems on the SGI AD workstations. Performance of several striped file system configurations are compared and guidelines for optimal striping are recommended.

  1. FILE SYSTEMS Crash Consistency

    E-print Network

    Doan, AnHai

    in your desktop computer or your cell phone,13 or that serve as the underlying storage beneath large the repository corrupted. Fortunately, this particular vulnerability is not devastating: if you have a clone

  2. A Metadata-Rich File System

    SciTech Connect

    Ames, S; Gokhale, M B; Maltzahn, C

    2009-01-07

    Despite continual improvements in the performance and reliability of large scale file systems, the management of file system metadata has changed little in the past decade. The mismatch between the size and complexity of large scale data stores and their ability to organize and query their metadata has led to a de facto standard in which raw data is stored in traditional file systems, while related, application-specific metadata is stored in relational databases. This separation of data and metadata requires considerable effort to maintain consistency and can result in complex, slow, and inflexible system operation. To address these problems, we have developed the Quasar File System (QFS), a metadata-rich file system in which files, metadata, and file relationships are all first class objects. In contrast to hierarchical file systems and relational databases, QFS defines a graph data model composed of files and their relationships. QFS includes Quasar, an XPATH-extended query language for searching the file system. Results from our QFS prototype show the effectiveness of this approach. Compared to the defacto standard, the QFS prototype shows superior ingest performance and comparable query performance on user metadata-intensive operations and superior performance on normal file metadata operations.

  3. Introduction Container Library Container Tools FUSE Container File System Evaluation Container Library and FUSE Container File

    E-print Network

    Introduction Container Library Container Tools FUSE Container File System Evaluation Container Library and FUSE Container File System Softwarepraktikum f¨ur Fortgeschrittene Michael Kuhn Parallele und;Introduction Container Library Container Tools FUSE Container File System Evaluation 1 Introduction

  4. Deceit: A flexible distributed file system

    NASA Technical Reports Server (NTRS)

    Siegel, Alex; Birman, Kenneth; Marzullo, Keith

    1989-01-01

    Deceit, a distributed file system (DFS) being developed at Cornell, focuses on flexible file semantics in relation to efficiency, scalability, and reliability. Deceit servers are interchangeable and collectively provide the illusion of a single, large server machine to any clients of the Deceit service. Non-volatile replicas of each file are stored on a subset of the file servers. The user is able to set parameters on a file to achieve different levels of availability, performance, and one-copy serializability. Deceit also supports a file version control mechanism. In contrast with many recent DFS efforts, Deceit can behave like a plain Sun Network File System (NFS) server and can be used by any NFS client without modifying any client software. The current Deceit prototype uses the ISIS Distributed Programming Environment for all communication and process group management, an approach that reduces system complexity and increases system robustness.

  5. Adding Data Management Services to Parallel File Systems

    SciTech Connect

    Brandt, Scott

    2015-03-04

    The objective of this project, called DAMASC for “Data Management in Scientific Computing”, is to coalesce data management with parallel file system management to present a declarative interface to scientists for managing, querying, and analyzing extremely large data sets efficiently and predictably. Managing extremely large data sets is a key challenge of exascale computing. The overhead, energy, and cost of moving massive volumes of data demand designs where computation is close to storage. In current architectures, compute/analysis clusters access data in a physically separate parallel file system and largely leave it scientist to reduce data movement. Over the past decades the high-end computing community has adopted middleware with multiple layers of abstractions and specialized file formats such as NetCDF-4 and HDF5. These abstractions provide a limited set of high-level data processing functions, but have inherent functionality and performance limitations: middleware that provides access to the highly structured contents of scientific data files stored in the (unstructured) file systems can only optimize to the extent that file system interfaces permit; the highly structured formats of these files often impedes native file system performance optimizations. We are developing Damasc, an enhanced high-performance file system with native rich data management services. Damasc will enable efficient queries and updates over files stored in their native byte-stream format while retaining the inherent performance of file system data storage via declarative queries and updates over views of underlying files. Damasc has four key benefits for the development of data-intensive scientific code: (1) applications can use important data-management services, such as declarative queries, views, and provenance tracking, that are currently available only within database systems; (2) the use of these services becomes easier, as they are provided within a familiar file-based ecosystem; (3) common optimizations, e.g., indexing and caching, are readily supported across several file formats, avoiding effort duplication; and (4) performance improves significantly, as data processing is integrated more tightly with data storage. Our key contributions are: SciHadoop which explores changes to MapReduce assumption by taking advantage of semantics of structured data while preserving MapReduce’s failure and resource management; DataMods which extends common abstractions of parallel file systems so they become programmable such that they can be extended to natively support a variety of data models and can be hooked into emerging distributed runtimes such as Stanford’s Legion; and Miso which combines Hadoop and relational data warehousing to minimize time to insight, taking into account the overhead of ingesting data into data warehousing.

  6. A file system for accessing MySQL tables as CSV files

    E-print Network

    Ordulu, Nizameddin (Nizameddin H.)

    2010-01-01

    In this thesis, we describe the design and implementation of a userspace file system that represents MySQL tables as comma-separated values (CSV) files. The users can access and modify the data through both the file system ...

  7. Storing files in a parallel computing system using list-based index to identify replica files

    DOEpatents

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Zhang, Zhenhua; Grider, Gary

    2015-07-21

    Improved techniques are provided for storing files in a parallel computing system using a list-based index to identify file replicas. A file and at least one replica of the file are stored in one or more storage nodes of the parallel computing system. An index for the file comprises at least one list comprising a pointer to a storage location of the file and a storage location of the at least one replica of the file. The file comprises one or more of a complete file and one or more sub-files. The index may also comprise a checksum value for one or more of the file and the replica(s) of the file. The checksum value can be evaluated to validate the file and/or the file replica(s). A query can be processed using the list.

  8. Flexibility and Performance of Parallel File Systems

    NASA Technical Reports Server (NTRS)

    Kotz, David; Nieuwejaar, Nils

    1996-01-01

    As we gain experience with parallel file systems, it becomes increasingly clear that a single solution does not suit all applications. For example, it appears to be impossible to find a single appropriate interface, caching policy, file structure, or disk-management strategy. Furthermore, the proliferation of file-system interfaces and abstractions make applications difficult to port. We propose that the traditional functionality of parallel file systems be separated into two components: a fixed core that is standard on all platforms, encapsulating only primitive abstractions and interfaces, and a set of high-level libraries to provide a variety of abstractions and application-programmer interfaces (API's). We present our current and next-generation file systems as examples of this structure. Their features, such as a three-dimensional file structure, strided read and write interfaces, and I/O-node programs, are specifically designed with the flexibility and performance necessary to support a wide range of applications.

  9. 76 FR 43206 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-20

    ...10-141; FCC 11-92] Electronic Tariff Filing System (ETFS) AGENCY: Federal...Internet, using the Electronic Tariff Filing System (ETFS). Additionally...electronically via the Electronic Tariff Filing System (ETFS) to all...

  10. Prefetching in file systems for MIMD multiprocessors

    NASA Technical Reports Server (NTRS)

    Kotz, David F.; Ellis, Carla Schlatter

    1990-01-01

    The question of whether prefetching blocks on the file into the block cache can effectively reduce overall execution time of a parallel computation, even under favorable assumptions, is considered. Experiments have been conducted with an interleaved file system testbed on the Butterfly Plus multiprocessor. Results of these experiments suggest that (1) the hit ratio, the accepted measure in traditional caching studies, may not be an adequate measure of performance when the workload consists of parallel computations and parallel file access patterns, (2) caching with prefetching can significantly improve the hit ratio and the average time to perform an I/O (input/output) operation, and (3) an improvement in overall execution time has been observed in most cases. In spite of these gains, prefetching sometimes results in increased execution times (a negative result, given the optimistic nature of the study). The authors explore why it is not trivial to translate savings on individual I/O requests into consistently better overall performance and identify the key problems that need to be addressed in order to improve the potential of prefetching techniques in the environment.

  11. Improving block sharing in the Write Anywhere File Layout file system

    E-print Network

    Grusecki, Travis R

    2012-01-01

    It is often useful in modern file systems for several files to share one or more data blocks. Block sharing is used to improve storage utilization by storing only one copy of a block shared by multiple files or volumes. ...

  12. Design and Implementation of Ceph: A Scalable Distributed File System

    SciTech Connect

    Weil, S A; Brandt, S A; Miller, E L; Long, D E; Maltzahn, C

    2006-04-19

    File system designers continue to look to new architectures to improve scalability. Object-based storage diverges from server-based (e.g. NFS) and SAN-based storage systems by coupling processors and memory with disk drives, delegating low-level allocation to object storage devices (OSDs) and decoupling I/O (read/write) from metadata (file open/close) operations. Even recent object-based systems inherit decades-old architectural choices going back to early UNIX file systems, however, limiting their ability to effectively scale to hundreds of petabytes. We present Ceph, a distributed file system that provides excellent performance and reliability with unprecedented scalability. Ceph maximizes the separation between data and metadata management by replacing allocation tables with a pseudo-random data distribution function (CRUSH) designed for heterogeneous and dynamic clusters of unreliable OSDs. We leverage OSD intelligence to distribute data replication, failure detection and recovery with semi-autonomous OSDs running a specialized local object storage file system (EBOFS). Finally, Ceph is built around a dynamic distributed metadata management cluster that provides extremely efficient metadata management that seamlessly adapts to a wide range of general purpose and scientific computing file system workloads. We present performance measurements under a variety of workloads that show superior I/O performance and scalable metadata management (more than a quarter million metadata ops/sec).

  13. [PVFS 2000: An operational parallel file system for Beowulf

    NASA Technical Reports Server (NTRS)

    Ligon, Walt

    2004-01-01

    The approach has been to develop Parallel Virtual File System version 2 (PVFS2) , retaining the basic philosophy of the original file system but completely rewriting the code. It shows the architecture of the server and client components. BMI - BMI is the network abstraction layer. It is designed with a common driver and modules for each protocol supported. The interface is non-blocking, and provides mechanisms for optimizations including pinning user buffers. Currently TCP/IP and GM(Myrinet) modules have been implemented. Trove -Trove is the storage abstraction layer. It provides for storing both data spaces and name/value pairs. Trove can also be implemented using different underlying storage mechanisms including native files, raw disk partitions, SQL and other databases. The current implementation uses native files for data spaces and Berkeley db for name/value pairs.

  14. Framework for Implementing File Systems in Windows NT Danilo Almeida

    E-print Network

    Internet File System (CIFS) loopback server that seamlessly integrates with NT's Installable File System (IFS) architecture via the Common Internet File System (CIFS) client included in the operating systemFramework for Implementing File Systems in Windows NT by Danilo Almeida Submitted to the Department

  15. Small file aggregation in a parallel computing system

    DOEpatents

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Grider, Gary; Zhang, Jingwang

    2014-09-02

    Techniques are provided for small file aggregation in a parallel computing system. An exemplary method for storing a plurality of files generated by a plurality of processes in a parallel computing system comprises aggregating the plurality of files into a single aggregated file; and generating metadata for the single aggregated file. The metadata comprises an offset and a length of each of the plurality of files in the single aggregated file. The metadata can be used to unpack one or more of the files from the single aggregated file.

  16. 18 CFR 300.14 - Filings under section 7(k).

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Filings under section 7(k). 300.14 Section 300.14 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS FOR FEDERAL POWER MARKETING ADMINISTRATIONS CONFIRMATION AND APPROVAL OF THE RATES OF FEDERAL POWER...

  17. Authority File Control System (AFCS) user's manual

    SciTech Connect

    Harris, J.R.; Schwarz, R.L.

    1988-08-01

    The Authority File Control System (AFCS) is a series of microcomputer-based update programs for the Information Resources Organization's (IRO's) Authority File data. It is used along with other software procedures to maintain current validity data in the Authority File against which to validate data input to the K-25 engineering drawing information database managed by IRO. This AFCS user's guide provides instruction on the use of these programs and the procedures that are used to transmit the updates back to the mainframe copy of the Authority File on the K-25 IBM 4341/3083. This manual presents an overview of the validation system, describing the system's purpose; the data that it handles; functions it performs; hardware, software, and access characteristics; and help and error functions. Also described are the interactive menu-driven operation of the AFCS, backup of the system files, and packing of the database. It covers software operations that must be performed by the user to update the mainframe Authority File, such as loading the Authority File updates onto the mainframe.

  18. 75 FR 48629 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ...10-141; FCC 10-127] Electronic Tariff Filing System (ETFS) AGENCY: Federal...1) The Commission's Electronic Comment Filing System (ECFS), (2) the Federal...the Bureau made this electronic system, known as the...

  19. Selfcertifying File System David Mazi`eres

    E-print Network

    No secure network file system has ever grown to span the Internet. Existing systems all lack adequate key management for security at a global scale. Given the diversity of the Internet, any particular mechanism the kind of grungy, low­level hacking few students can expect from professors, and for generally being

  20. Collective operations in a file system based execution model

    DOEpatents

    Shinde, Pravin; Van Hensbergen, Eric

    2013-02-12

    A mechanism is provided for group communications using a MULTI-PIPE synthetic file system. A master application creates a multi-pipe synthetic file in the MULTI-PIPE synthetic file system, the master application indicating a multi-pipe operation to be performed. The master application then writes a header-control block of the multi-pipe synthetic file specifying at least one of a multi-pipe synthetic file system name, a message type, a message size, a specific destination, or a specification of the multi-pipe operation. Any other application participating in the group communications then opens the same multi-pipe synthetic file. A MULTI-PIPE file system module then implements the multi-pipe operation as identified by the master application. The master application and the other applications then either read or write operation messages to the multi-pipe synthetic file and the MULTI-PIPE synthetic file system module performs appropriate actions.

  1. Collective operations in a file system based execution model

    DOEpatents

    Shinde, Pravin; Van Hensbergen, Eric

    2013-02-19

    A mechanism is provided for group communications using a MULTI-PIPE synthetic file system. A master application creates a multi-pipe synthetic file in the MULTI-PIPE synthetic file system, the master application indicating a multi-pipe operation to be performed. The master application then writes a header-control block of the multi-pipe synthetic file specifying at least one of a multi-pipe synthetic file system name, a message type, a message size, a specific destination, or a specification of the multi-pipe operation. Any other application participating in the group communications then opens the same multi-pipe synthetic file. A MULTI-PIPE file system module then implements the multi-pipe operation as identified by the master application. The master application and the other applications then either read or write operation messages to the multi-pipe synthetic file and the MULTI-PIPE synthetic file system module performs appropriate actions.

  2. Providing a Shared File System in the Hare POSIX Multikernel

    E-print Network

    Gruenwald, Charles, III

    2014-01-01

    Hare is a new multikernel operating system that provides a single system image for multicore processors without cache coherence. Hare allows applications on different cores to share files, directories, file descriptors, ...

  3. Compiler-Directed File Layout Optimization for Hierarchical Storage Systems

    DOE PAGESBeta

    Ding, Wei; Zhang, Yuanrui; Kandemir, Mahmut; Son, Seung Woo

    2013-01-01

    File layout of array data is a critical factor that effects the behavior of storage caches, and has so far taken not much attention in the context of hierarchical storage systems. The main contribution of this paper is a compiler-driven file layout optimization scheme for hierarchical storage caches. This approach, fully automated within an optimizing compiler, analyzes a multi-threaded application code and determines a file layout for each disk-resident array referenced by the code, such that the performance of the target storage cache hierarchy is maximized. We tested our approach using 16 I/O intensive application programs and compared its performancemore »against two previously proposed approaches under different cache space management schemes. Our experimental results show that the proposed approach improves the execution time of these parallel applications by 23.7% on average.« less

  4. Organizing, Indexing, and Searching Large-Scale File Systems

    E-print Network

    California at Santa Cruz, University of

    Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 2.6.3 File System Optimized IndexingOrganizing, Indexing, and Searching Large-Scale File Systems Technical Report UCSC-SSRC-09 OF CALIFORNIA SANTA CRUZ ORGANIZING, INDEXING, AND SEARCHING LARGE-SCALE FILE SYSTEMS A dissertation submitted

  5. Public Document Room file classification system

    SciTech Connect

    Not Available

    1982-06-01

    This listing contains detailed descriptions of the file classification system for documents available from the Public Document Room (PDR) of the US Nuclear Regulatory Commission. As a public service branch of the agency, the PDR maintains facilities for receiving, processing, storing, and retrieving documents which NRC generates or receives in performing its regulatory function. Unlike a library, the PDR does not maintain collections of formally published materials, such as books, monographs, serials, periodicals, or general indexes. The documents on file at the PDR can be reports, written records of meetings (transcripts), existing or proposed regulations, the text of licenses or their amendments, and correspondence.

  6. File System Support for Digital Evidence Bags

    NASA Astrophysics Data System (ADS)

    Richard, Golden; Roussev, Vassil

    Digital Evidence Bags (DEBs) are a mechanism for bundling digital evidence, associated metadata and audit logs into a single structure. DEB-compliant applications can update a DEB's audit log as evidence is introduced into the bag and as data in the bag is processed. This paper investigates native file system support for DEBs, which has a number of benefits over ad hoc modification of digital evidence bags. The paper also describes an API for DEB-enabled applications and methods for providing DEB access to legacy applications through a DEB-aware file system. The paper addresses an urgent need for digital-forensics-aware operating system components that can enhance the consistency, security and performance of investigations.

  7. Design and Implementation of a Metadata-rich File System

    SciTech Connect

    Ames, S; Gokhale, M B; Maltzahn, C

    2010-01-19

    Despite continual improvements in the performance and reliability of large scale file systems, the management of user-defined file system metadata has changed little in the past decade. The mismatch between the size and complexity of large scale data stores and their ability to organize and query their metadata has led to a de facto standard in which raw data is stored in traditional file systems, while related, application-specific metadata is stored in relational databases. This separation of data and semantic metadata requires considerable effort to maintain consistency and can result in complex, slow, and inflexible system operation. To address these problems, we have developed the Quasar File System (QFS), a metadata-rich file system in which files, user-defined attributes, and file relationships are all first class objects. In contrast to hierarchical file systems and relational databases, QFS defines a graph data model composed of files and their relationships. QFS incorporates Quasar, an XPATH-extended query language for searching the file system. Results from our QFS prototype show the effectiveness of this approach. Compared to the de facto standard, the QFS prototype shows superior ingest performance and comparable query performance on user metadata-intensive operations and superior performance on normal file metadata operations.

  8. A History of the Andrew File System

    SciTech Connect

    2011-02-22

    Derrick Brashear and Jeffrey Altman will present a technical history of the evolution of Andrew File System starting with the early days of the Andrew Project at Carnegie Mellon through the commercialization by Transarc Corporation and IBM and a decade of OpenAFS. The talk will be technical with a focus on the various decisions and implementation trade-offs that were made over the course of AFS versions 1 through 4, the development of the Distributed Computing Environment Distributed File System (DCE DFS), and the course of the OpenAFS development community. The speakers will also discuss the various AFS branches developed at the University of Michigan, Massachusetts Institute of Technology and Carnegie Mellon University.

  9. Digital Libraries: The Next Generation in File System Technology.

    ERIC Educational Resources Information Center

    Bowman, Mic; Camargo, Bill

    1998-01-01

    Examines file sharing within corporations that use wide-area, distributed file systems. Applications and user interactions strongly suggest that the addition of services typically associated with digital libraries (content-based file location, strongly typed objects, representation of complex relationships between documents, and extrinsic…

  10. Active Storage Processing in a Parallel File System

    SciTech Connect

    Felix, Evan J.; Fox, Kevin M.; Regimbal, Kevin M.; Nieplocha, Jarek

    2006-01-01

    By creating a processing system within a parallel file system one can harness the power of unused processing power on servers that have very fast access to the disks they are serving. By inserting a module the Lustre file system the Active Storage Concept is able to perform processing with the file system architecture. Results of using this technology are presented as the results of the Supercomputing StorCloud Challenge Application are reviewed.

  11. 39 CFR 959.8 - Service of petition filed under § 959.6.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Service of petition filed under § 959.6. 959.8 Section 959.8 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.8 Service of petition filed under § 959.6. (a) The...

  12. 39 CFR 959.8 - Service of petition filed under § 959.6.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 39 Postal Service 1 2013-07-01 2013-07-01 false Service of petition filed under § 959.6. 959.8 Section 959.8 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.8 Service of petition filed under § 959.6. (a) The...

  13. 39 CFR 959.8 - Service of petition filed under § 959.6.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 39 Postal Service 1 2012-07-01 2012-07-01 false Service of petition filed under § 959.6. 959.8 Section 959.8 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.8 Service of petition filed under § 959.6. (a) The...

  14. 39 CFR 959.8 - Service of petition filed under § 959.6.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 39 Postal Service 1 2014-07-01 2014-07-01 false Service of petition filed under § 959.6. 959.8 Section 959.8 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.8 Service of petition filed under § 959.6. (a) The...

  15. Optimizing Input/Output Using Adaptive File System Policies

    NASA Technical Reports Server (NTRS)

    Madhyastha, Tara M.; Elford, Christopher L.; Reed, Daniel A.

    1996-01-01

    Parallel input/output characterization studies and experiments with flexible resource management algorithms indicate that adaptivity is crucial to file system performance. In this paper we propose an automatic technique for selecting and refining file system policies based on application access patterns and execution environment. An automatic classification framework allows the file system to select appropriate caching and pre-fetching policies, while performance sensors provide feedback used to tune policy parameters for specific system environments. To illustrate the potential performance improvements possible using adaptive file system policies, we present results from experiments involving classification-based and performance-based steering.

  16. Distributing LHC application software and conditions databases using the CernVM file system

    NASA Astrophysics Data System (ADS)

    Blomer, Jakob; Aguado-Sánchez, Carlos; Buncic, Predrag; Harutyunyan, Artem

    2011-12-01

    The CernVM File System (CernVM-FS) is a read-only file system designed to deliver high energy physics (HEP) experiment analysis software onto virtual machines and Grid worker nodes in a fast, scalable, and reliable way. CernVM-FS decouples the underlying operating system from the experiment denned software stack. Files and file metadata are aggressively cached and downloaded on demand. By designing the file system specifically to the use case of HEP software repositories and experiment conditions data, several typically hard problems for (distributed) file systems can be solved in an elegant way. For the distribution of files, we use a standard HTTP transport, which allows exploitation of a variety of web caches, including commercial content delivery networks. We ensure data authenticity and integrity over possibly untrusted caches and connections while keeping all distributed data cacheable. On the small scale, we developed an experimental extension that allows multiple CernVM-FS instances in a computing cluster to discover each other and to share their file caches.

  17. pcircle - A Suite of Scalable Parallel File System Tools

    SciTech Connect

    2015-10-01

    Most of the software related to file system are written for conventional local file system, they are serialized and can't take advantage of the benefit of a large scale parallel file system. "pcircle" software builds on top of ubiquitous MPI in cluster computing environment and "work-stealing" pattern to provide a scalable, high-performance suite of file system tools. In particular - it implemented parallel data copy and parallel data checksumming, with advanced features such as async progress report, checkpoint and restart, as well as integrity checking.

  18. pcircle - A Suite of Scalable Parallel File System Tools

    Energy Science and Technology Software Center (ESTSC)

    2015-10-01

    Most of the software related to file system are written for conventional local file system, they are serialized and can't take advantage of the benefit of a large scale parallel file system. "pcircle" software builds on top of ubiquitous MPI in cluster computing environment and "work-stealing" pattern to provide a scalable, high-performance suite of file system tools. In particular - it implemented parallel data copy and parallel data checksumming, with advanced features such as asyncmore »progress report, checkpoint and restart, as well as integrity checking.« less

  19. 76 FR 70651 - Fee for Filing a Patent Application Other Than by the Electronic Filing System

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ... From the Federal Register Online via the Government Printing Office DEPARTMENT OF COMMERCE Patent and Trademark Office 37 CFR Part 1 RIN 0651-AC64 Fee for Filing a Patent Application Other Than by the Electronic Filing System AGENCY: United States Patent and Trademark Office, Commerce. ACTION: Final...

  20. Energy Efficient Prefetching with Buffer Disks for Cluster File Systems

    E-print Network

    Qin, Xiao

    Energy Efficient Prefetching with Buffer Disks for Cluster File Systems Adam Manzanares, Xiaojun the energy- efficiency of large scale parallel storage systems. To address these issues we introduce EEVFS (Energy Efficient Virtual File System), which is able to manage data placement and disk states to help

  1. Working Set-Based Access Control for Network File Systems Stephen Smaldone, Vinod Ganapathy, and Liviu Iftode

    E-print Network

    Ganapathy, Vinod

    phones, that are not under the control of the corporation, and may be infected with viruses, worms scheme called Working Set-Based Access Control (WSBAC) to restrict network file system accesses from experiments with realistic network file system traces lead us to conclude that using working sets offers

  2. 75 FR 27986 - Electronic Filing System-Web (EFS-Web) Contingency Option

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ...PTO-P-2010-0040] Electronic Filing System--Web (EFS-Web) Contingency Option AGENCY: United States Patent and...electronic filing system, Electronic Filing System--Web (EFS-Web) by providing a new contingency option...

  3. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...Composition of, and access to, the Employee Medical File System. 293.504 Section 293...REGULATIONS PERSONNEL RECORDS Employee Medical File System Records § 293.504 Composition of, and access to, the Employee Medical File System. (a) All employee...

  4. A method of merging VMware disk images through file system unification

    E-print Network

    Cheng, Sarah X

    2011-01-01

    This thesis describes a method of merging the contents of two VMware disk images by merging the file systems therein. Thus, two initially disparate file systems are joined to appear and behave as a single file system. The ...

  5. Architecture For An Image Filing And Indexing System

    NASA Astrophysics Data System (ADS)

    Hack, Stanley N.; Paoni, Robert A.; Robeson, Glenn H.

    1986-06-01

    We are developing an in-house Picture Archiving and Communication System (PACS) targeted to the centralized storage of images acquired from our computer-assisted imaging modalities and to the display of these images on multi-modality viewing stations. The central image database is distributed between two system modules with image processing capabilities located at the viewing stations. The first module of the image database is an image filing subsystem used for the storage and retrieval of complete image files. In our initial work, this module consists of a Data General MV/6000 computer system with 1.16 Gbytes of on-line disk storage. However, more efficient dedicated filing systems may be substituted for this general purpose computer in future revisions. The second module is an image file indexing subsystem which has been implemented on a DEC PDP-11/44 computer and is tightly integrated with our MARS II (ADAC Laboratories) Radiology Information System. These two image database modules communicate via low-speed, serial communications lines. This report focuses on our developmental work on the image file indexing subsystem and its communications protocol with the image filing subsystem. The image file indexing subsystem automatically inserts image file locators for studies referenced by patient when an image is transmitted from the acquisition device (eg, CT) to the image filing subsystem. It also locates image files at the request of a viewing station user based on patient name, physician name, or study type for either read or unread studies. Other capabilities include cross-referencing patient attributes with the MARS II system, deleting studies based on predefined criteria, storing requests for hard copy, storing user selected image processing attributes for individual images, flagging the archival status of an image, and complete managerial functions. This central-ized image filing and indexing system comprises what will become the central element of our PACS.

  6. Performance and Scalability Evaluation of the Ceph Parallel File System

    SciTech Connect

    Wang, Feiyi; Nelson, Mark; Oral, H Sarp; Settlemyer, Bradley W; Atchley, Scott; Caldwell, Blake A; Hill, Jason J

    2013-01-01

    Ceph is an open-source and emerging parallel distributed file and storage system technology. By design, Ceph assumes running on unreliable and commodity storage and network hardware and provides reliability and fault-tolerance through controlled object placement and data replication. We evaluated the Ceph technology for scientific high-performance computing (HPC) environments. This paper presents our evaluation methodology, experiments, results and observations from mostly parallel I/O performance and scalability perspectives. Our work made two unique contributions. First, our evaluation is performed under a realistic setup for a large-scale capability HPC environment using a commercial high-end storage system. Second, our path of investigation, tuning efforts, and findings made direct contributions to Ceph's development and improved code quality, scalability, and performance. These changes should also benefit both Ceph and HPC communities at large. Throughout the evaluation, we observed that Ceph still is an evolving technology under fast-paced development and showing great promises.

  7. Using the Unix system Navigating the Unix file system

    E-print Network

    (1) n ls list files and directories n ls -a list all files and directories n mkdir name make) n cp file1 file2 copy file1 and call it file2 n mv file1 file2 move or rename file1 to file2 n rm-n (next line) q C-p (prev. line) q C-v (page up) q alt-v (page down) q C-x C-j (jump to line) q Deletion q

  8. Comparison of leading parallel NAS file systems on commodity hardware

    SciTech Connect

    Hedges, R; Fitzgerald, K; Gary, M; Stearman, D M

    2010-11-08

    High performance computing has experienced tremendous gains in system performance over the past 20 years. Unfortunately other system capabilities, such as file I/O, have not grown commensurately. In this activity, we present the results of our tests of two leading file systems (GPFS and Lustre) on the same physical hardware. This hardware is the standard commodity storage solution in use at LLNL and, while much smaller in size, is intended to enable us to learn about differences between the two systems in terms of performance, ease of use and resilience. This work represents the first hardware consistent study of the two leading file systems that the authors are aware of.

  9. 76 FR 71019 - Amendment of Inspector General's Operation and Reporting (IGOR) System Investigative Files (EPA-40)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ...Reporting (IGOR) System Investigative Files (EPA-40) AGENCY: Environmental Protection...Reporting (IGOR) System Investigative Files (EPA-40) to the Inspector General Enterprise...able to consider your comment. Electronic files should avoid the use of special...

  10. 50 CFR 221.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 221.70 How must documents be filed and served under this subpart? (a)...

  11. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Section 45.70 Public Lands: Interior Office of the Secretary of the Interior CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 45.70 How must documents be filed and served under this subpart? (a)...

  12. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Section 45.70 Public Lands: Interior Office of the Secretary of the Interior CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 45.70 How must documents be filed and served under this subpart? (a)...

  13. 50 CFR 221.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 221.70 How must documents be filed and served under this subpart? (a)...

  14. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Section 45.70 Public Lands: Interior Office of the Secretary of the Interior CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 45.70 How must documents be filed and served under this subpart? (a)...

  15. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Section 45.70 Public Lands: Interior Office of the Secretary of the Interior CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 45.70 How must documents be filed and served under this subpart? (a)...

  16. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Section 45.70 Public Lands: Interior Office of the Secretary of the Interior CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES Alternatives Process § 45.70 How must documents be filed and served under this subpart? (a)...

  17. Using the Sirocco File System for high-bandwidth checkpoints.

    SciTech Connect

    Klundt, Ruth Ann; Curry, Matthew L.; Ward, H. Lee

    2012-02-01

    The Sirocco File System, a file system for exascale under active development, is designed to allow the storage software to maximize quality of service through increased flexibility and local decision-making. By allowing the storage system to manage a range of storage targets that have varying speeds and capacities, the system can increase the speed and surety of storage to the application. We instrument CTH to use a group of RAM-based Sirocco storage servers allocated within the job as a high-performance storage tier to accept checkpoints, allowing computation to potentially continue asynchronously of checkpoint migration to slower, more permanent storage. The result is a 10-60x speedup in constructing and moving checkpoint data from the compute nodes. This demonstration of early Sirocco functionality shows a significant benefit for a real I/O workload, checkpointing, in a real application, CTH. By running Sirocco storage servers within a job as RAM-only stores, CTH was able to store checkpoints 10-60x faster than storing to PanFS, allowing the job to continue computing sooner. While this prototype did not include automatic data migration, the checkpoint was available to be pushed or pulled to disk-based storage as needed after the compute nodes continued computing. Future developments include the ability to dynamically spawn Sirocco nodes to absorb checkpoints, expanding this mechanism to other fast tiers of storage like flash memory, and sharing of dynamic Sirocco nodes between multiple jobs as needed.

  18. 39 CFR 959.8 - Service of petition filed under § 959.6.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 39 Postal Service 1 2011-07-01 2011-07-01 false Service of petition filed under § 959.6. 959.8 Section 959.8 Postal Service UNITED STATES POSTAL SERVICE PROCEDURES RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO THE PRIVATE EXPRESS STATUTES § 959.8 Service of petition filed under § 959.6. (a) The Recorder shall cause a notice of hearing and a...

  19. Generalized File System Dependencies Christopher Frost Mike Mammarella Eddie Kohler

    E-print Network

    Cortes, Corinna

    consistency enforcement mecha- nisms have similar constraints, implemented in each case in system- dependent others, underlie every mecha- nism for ensuring file system consistency and reliability from jour- naling

  20. 77 FR 43592 - System Energy Resources, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-25

    ...Energy Resources, Inc. (System Energy Resources), submitted a supplement to its petition filed on March 28...of the Federal Power Act. In its supplement, System Energy Resources supplements its March 28 petition to provide...

  1. Dynamic Non-Hierarchical File Systems for Exascale Storage

    SciTech Connect

    Long, Darrell E.; Miller, Ethan L

    2015-02-24

    This constitutes the final report for “Dynamic Non-Hierarchical File Systems for Exascale Storage”. The ultimate goal of this project was to improve data management in scientific computing and high-end computing (HEC) applications, and to achieve this goal we proposed: to develop the first, HEC-targeted, file system featuring rich metadata and provenance collection, extreme scalability, and future storage hardware integration as core design goals, and to evaluate and develop a flexible non-hierarchical file system interface suitable for providing more powerful and intuitive data management interfaces to HEC and scientific computing users. Data management is swiftly becoming a serious problem in the scientific community – while copious amounts of data are good for obtaining results, finding the right data is often daunting and sometimes impossible. Scientists participating in a Department of Energy workshop noted that most of their time was spent “...finding, processing, organizing, and moving data and it’s going to get much worse”. Scientists should not be forced to become data mining experts in order to retrieve the data they want, nor should they be expected to remember the naming convention they used several years ago for a set of experiments they now wish to revisit. Ideally, locating the data you need would be as easy as browsing the web. Unfortunately, existing data management approaches are usually based on hierarchical naming, a 40 year-old technology designed to manage thousands of files, not exabytes of data. Today’s systems do not take advantage of the rich array of metadata that current high-end computing (HEC) file systems can gather, including content-based metadata and provenance1 information. As a result, current metadata search approaches are typically ad hoc and often work by providing a parallel management system to the “main” file system, as is done in Linux (the locate utility), personal computers, and enterprise search appliances. These search applications are often optimized for a single file system, making it difficult to move files and their metadata between file systems. Users have tried to solve this problem in several ways, including the use of separate databases to index file properties, the encoding of file properties into file names, and separately gathering and managing provenance data, but none of these approaches has worked well, either due to limited usefulness or scalability, or both. Our research addressed several key issues: • High-performance, real-time metadata harvesting: extracting important attributes from files dynami- cally and immediately updating indexes used to improve search. • Transparent, automatic, and secure provenance capture: recording the data inputs and processing steps used in the production of each file in the system. • Scalable indexing: indexes that are optimized for integration with the file system. • Dynamic file system structure: our approach provides dynamic directories similar to those in semantic file systems, but these are the native organization rather than a feature grafted onto a conventional system. In addition to these goals, our research effort will include evaluating the impact of new storage technolo- gies on the file system design and performance. In particular, the indexing and metadata harvesting functions can potentially benefit from the performance improvements promised by new storage class memories.

  2. Configuration Management File Manager Developed for Numerical Propulsion System Simulation

    NASA Technical Reports Server (NTRS)

    Follen, Gregory J.

    1997-01-01

    One of the objectives of the High Performance Computing and Communication Project's (HPCCP) Numerical Propulsion System Simulation (NPSS) is to provide a common and consistent way to manage applications, data, and engine simulations. The NPSS Configuration Management (CM) File Manager integrated with the Common Desktop Environment (CDE) window management system provides a common look and feel for the configuration management of data, applications, and engine simulations for U.S. engine companies. In addition, CM File Manager provides tools to manage a simulation. Features include managing input files, output files, textual notes, and any other material normally associated with simulation. The CM File Manager includes a generic configuration management Application Program Interface (API) that can be adapted for the configuration management repositories of any U.S. engine company.

  3. Transaction Support in Read Optimized and Write Optimized File Systems Margo Seltzer

    E-print Network

    optimized for reads. In addition, we show that file system embedded transaction managers can perform as wellTransaction Support in Read Optimized and Write Optimized File Systems Margo Seltzer Michael manager on top of a read optimized file system. The second also assumes a traditional file system

  4. Transaction Support in Read Optimized and Write Optimized File Systems+ Margo Seltzer

    E-print Network

    optimized for reads. In addition, we show that file system embedded transaction managers can perform as wellTransaction Support in Read Optimized and Write Optimized File Systems+ Margo Seltzer Michael manager on top of a read optimized file system. The second also assumes a traditional file system

  5. A CDP method in an object-based file system

    NASA Astrophysics Data System (ADS)

    Yao, Jie; Cao, Qiang; Li, Huaiyang

    2008-12-01

    Recent advances in large-capacity, low-cost storage devices have led to active research in design of large-scale storage system built from commodity devices. These storage systems are composed of thousands of storage device and require an efficient file system to provide high system bandwidth and petabyte-scale data storage. Object-based file system integrates advantage of both NAS and SAN, can be applied in above environment. Continuous data protection (CDP) is a methodology that continuously captures or tracks data modifications and stores changes independent of the primary data, enabling recovery points from any point in the past. All changes to files and file metadata are stored and managed. A CDP method in Object-based file system is presented in this thesis to improve the system reliability. Firstly, we can get detail at byte level of every write request because data protection operates at the file system level. It can consume less storage space. Secondly, every object storage server can compute the recovery strip data object independently to decrease the recovery time. Thirdly a journal-like metadata management way is introduced to provide metadata optimization for CDP.

  6. Modular file-structured databasing system. [SADIST-SLINK

    SciTech Connect

    Mathey, E.L.; Stauffer, J.D.

    1980-01-01

    Computer aids for integrated circuit design require the manipulation of vast amounts of data. The SADIST-SLINK modular file-structured databasing system consists of a databasing primitive written in FORTRAN and a powerful surround program written in PASCAL. The modular approach is simple, cost-effective, and extremely efficient. While the system was designed to handle LSI circuit data, it is generalized and meets many needs. In addition to circuit library information, the database currently contains HELP and DOCUMENTATION files, as well as runstream files that provide operating data for a Design Executive Program. 1 figure. (RWR)

  7. High-Performance, Multi-Node File Copies and Checksums for Clustered File Systems

    NASA Technical Reports Server (NTRS)

    Kolano, Paul Z.; Ciotti, Robert B.

    2012-01-01

    Modern parallel file systems achieve high performance using a variety of techniques, such as striping files across multiple disks to increase aggregate I/O bandwidth and spreading disks across multiple servers to increase aggregate interconnect bandwidth. To achieve peak performance from such systems, it is typically necessary to utilize multiple concurrent readers/writers from multiple systems to overcome various singlesystem limitations, such as number of processors and network bandwidth. The standard cp and md5sum tools of GNU coreutils found on every modern Unix/Linux system, however, utilize a single execution thread on a single CPU core of a single system, and hence cannot take full advantage of the increased performance of clustered file systems. Mcp and msum are drop-in replacements for the standard cp and md5sum programs that utilize multiple types of parallelism and other optimizations to achieve maximum copy and checksum performance on clustered file systems. Multi-threading is used to ensure that nodes are kept as busy as possible. Read/write parallelism allows individual operations of a single copy to be overlapped using asynchronous I/O. Multinode cooperation allows different nodes to take part in the same copy/checksum. Split-file processing allows multiple threads to operate concurrently on the same file. Finally, hash trees allow inherently serial checksums to be performed in parallel. Mcp and msum provide significant performance improvements over standard cp and md5sum using multiple types of parallelism and other optimizations. The total speed-ups from all improvements are significant. Mcp improves cp performance over 27x, msum improves md5sum performance almost 19x, and the combination of mcp and msum improves verified copies via cp and md5sum by almost 22x. These improvements come in the form of drop-in replacements for cp and md5sum, so are easily used and are available for download as open source software at http://mutil.sourceforge.net.

  8. SCFS: a Shared Cloud-backed File System Alysson Bessani1

    E-print Network

    Correia, Miguel

    SCFS: a Shared Cloud-backed File System Alysson Bessani1 , Ricardo Mendes1 , Tiago Oliveira1 Nuno and inefficient file sharing. We present SCFS, a cloud- backed file system that addresses these issues and pro services through a set of novel ideas for cloud-backed file systems: always write / avoid reading, modular

  9. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does an employee file a claim for...

  10. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does an employee file a claim for...

  11. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does an employee file a claim for...

  12. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does an employee file a claim for...

  13. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does an employee file a claim for...

  14. Educational Use of Toshiba TDF-500 Medical Image Filing System for Teaching File Archiving and Viewing

    NASA Astrophysics Data System (ADS)

    Kimura, Michio; Yashiro, Naobumi; Kita, Koichi; Tani, Yuichiro; IIO, Masahiro

    1989-05-01

    The authors have been using medical image filing system TOSHIBA TDIS-FILE as a teaching files archiving and viewing at University of Tokyo, Hospital, Department of Radiology. Image display on CRT was proven sufficient for the purpose of education for small groups of students, as well as residents. However, retrieval time for archived images, man-machine interface, and financial expenses are not in a satisfactory level yet. The authors also implemented flexible retrieval scheme for diagnostic codes, which has been proven sophisticated. These kinds of software utilities, as well as hardware evolution, are essential for this kind of instruments to be used as potential component of PACSystem. In our department, PACS project is being carried on. In the system, TOSHIBA AS3160 workstation (=SUN 3/160) handles all user interfaces including controls of medical image displays, examination data bases, and interface with HIS.

  15. Storing files in a parallel computing system based on user-specified parser function

    DOEpatents

    Faibish, Sorin; Bent, John M; Tzelnic, Percy; Grider, Gary; Manzanares, Adam; Torres, Aaron

    2014-10-21

    Techniques are provided for storing files in a parallel computing system based on a user-specified parser function. A plurality of files generated by a distributed application in a parallel computing system are stored by obtaining a parser from the distributed application for processing the plurality of files prior to storage; and storing one or more of the plurality of files in one or more storage nodes of the parallel computing system based on the processing by the parser. The plurality of files comprise one or more of a plurality of complete files and a plurality of sub-files. The parser can optionally store only those files that satisfy one or more semantic requirements of the parser. The parser can also extract metadata from one or more of the files and the extracted metadata can be stored with one or more of the plurality of files and used for searching for files.

  16. 77 FR 43592 - System Energy Resources, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-25

    ... From the Federal Register Online via the Government Printing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission System Energy Resources, Inc.; Notice of Filing Take notice that on July 18, 2012, System Energy Resources, Inc. (System Energy Resources), submitted a supplement to its...

  17. Providing a Shared File System in the Hare POSIX Multikernel

    E-print Network

    Providing a Shared File System in the Hare POSIX Multikernel by Charles Gruenwald III Submitted System in the Hare POSIX Multikernel by Charles Gruenwald III Submitted to the Department of Electrical of Doctor of Philosophy in Computer Science Abstract Hare is a new multikernel operating system

  18. Cleaning capacity of hybrid instrumentation technique using reamer with alternating cutting edges system files: Histological analysis

    PubMed Central

    Júnior, Emilio Carlos Sponchiado; da Fonseca, Tiago Silva; da Frota, Matheus Franco; de Carvalho, Fredson Marcio Acris; Marques, André Augusto Franco; Garcia, Lucas da Fonseca Roberti

    2014-01-01

    Aim: The aim of the following study is to evaluate the cleaning capacity of a hybrid instrumentation technique using Reamer with Alternating Cutting Edges (RaCe) system files in the apical third of mesial roots of mandibular molars. Materials and Methods: Twenty teeth were selected and separated into two groups (n = 20) according to instrumentation technique as follows: BioRaCe - chemomechanical preparation with K-type files #10 and #15; and files BioRaCe BR0, BR1, BR2, BR3, and BR4; HybTec - hybrid instrumentation technique with K-type files #10 and #15 in the working length, #20 at 2 mm, #25 at 3 mm, cervical preparation with Largo burs #1 and #2; apical preparation with K-type files #15, #20, and #25 and RaCe files #25.04 and #30.04. The root canals were irrigated with 1 ml of 2.5% sodium hypochlorite at each change of instrument. The specimens were histologically processed and photographed under light optical microscope. The images were inserted onto an integration grid to count the amount of debris present in the root canal. Results: BioRaCe presented the highest percentage of debris in the apical third, however, with no statistically significant difference for HybTec (P > 0.05). Conclusions: The hybrid technique presented similar cleaning capacity as the technique recommended by the manufacturer. PMID:24963247

  19. PVFS : a parallel file system for linux clusters

    SciTech Connect

    Carns, P. H.; Ligon, W. B., III; Ross, R. B.; Thakur, R.

    2000-04-27

    As Linux clusters have matured as platforms for low-cost, high-performance parallel computing, software packages to provide many key services have emerged, especially in areas such as message passing and net-working. One area devoid of support, however, has been parallel file systems, which are critical for high-performance I/O on such clusters. We have developed a parallel file system for Linux clusters, called the Parallel Virtual File System (PVFS). PVFS is intended both as a high-performance parallel file system that anyone can download and use and as a tool for pursuing further research in parallel I/O and parallel file systems for Linux clusters. In this paper, we describe the design and implementation of PVFS and present performance results on the Chiba City cluster at Argonne. We provide performance results for a workload of concurrent reads and writes for various numbers of compute nodes, I/O nodes, and I/O request sizes. We also present performance results for MPI-IO on PVFS, both for a concurrent read/write workload and for the BTIO benchmark. We compare the I/O performance when using a Myrinet network versus a fast-ethernet network for I/O-related communication in PVFS. We obtained read and write bandwidths as high as 700 Mbytes/sec with Myrinet and 225 Mbytes/sec with fast ethernet.

  20. 78 FR 16365 - Foreign Trade Regulations: Mandatory Automated Export System Filing for All Shipments Requiring...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-14

    ...Mandatory Automated Export System Filing for All Shipments Requiring Shipper's Export Declaration...Mandatory Automated Export System Filing for All Shipments Requiring Shipper's Export Declaration...System (AES) or through AESDirect for all shipments of used self-propelled...

  1. 76 FR 4001 - Foreign Trade Regulations (FTR): Mandatory Automated Export System Filing for All Shipments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-21

    ...Mandatory Automated Export System Filing for All Shipments Requiring Shipper's Export Declaration...Mandatory Automated Export System Filing for All Shipments Requiring Shipper's Export Declaration...System (AES) or through AESDirect for all shipments of used self-propelled...

  2. 20 CFR 10.10 - Are all documents relating to claims filed under the FECA considered confidential?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... false Are all documents relating to claims filed under the FECA considered confidential? 10.10 Section 10.10 Employees...10.10 Are all documents relating to claims filed under the FECA considered confidential? All records relating to claims...

  3. 20 CFR 10.10 - Are all documents relating to claims filed under the FECA considered confidential?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... false Are all documents relating to claims filed under the FECA considered confidential? 10.10 Section 10.10 Employees...10.10 Are all documents relating to claims filed under the FECA considered confidential? All records relating to claims...

  4. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Compensation and Reimbursement of Expenses Filed Under 11 U.S.C. 330 A Appendix A to Part 58 Judicial... 1994 Pt. 58, App. A Appendix A to Part 58—Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under 11 U.S.C. 330 (a) General Information. (1) The Bankruptcy Reform Act...

  5. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. 58.7 Section 58.7 Judicial Administration DEPARTMENT...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. (a) UST Form 101-7-TFR, Chapter 7 Trustee's...

  6. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. 58.7 Section 58.7 Judicial Administration DEPARTMENT...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. (a) UST Form 101-7-TFR, Chapter 7 Trustee's...

  7. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. 58.7 Section 58.7 Judicial Administration DEPARTMENT...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. (a) UST Form 101-7-TFR, Chapter 7 Trustee's...

  8. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. 58.7 Section 58.7 Judicial Administration DEPARTMENT...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. (a) UST Form 101-7-TFR, Chapter 7 Trustee's...

  9. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. 58.7 Section 58.7 Judicial Administration DEPARTMENT...in Cases Filed Under Chapters 7, 12, and 13 of the Bankruptcy Code. (a) UST Form 101-7-TFR, Chapter 7 Trustee's...

  10. 47 CFR 4.2 - Availability of reports filed under this part.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... the procedures set forth in 47 CFR § 0.461. Notice of any requests for inspection of outage reports will be provided pursuant to 47 CFR 0.461(d)(3). Reporting Requirements for Disruptions to... 47 Telecommunication 1 2010-10-01 2010-10-01 false Availability of reports filed under this...

  11. Generalized File Management System or Proto-DBMS?

    ERIC Educational Resources Information Center

    Braniff, Tom

    1979-01-01

    The use of a data base management system (DBMS) as opposed to traditional data processing is discussed. The generalized file concept is viewed as an entry level step to the DBMS. The transition process from one system to the other is detailed. (SF)

  12. The Spider Center Wide File System; From Concept to Reality

    SciTech Connect

    Shipman, Galen M; Dillow, David A; Oral, H Sarp; Wang, Feiyi

    2009-01-01

    The Leadership Computing Facility (LCF) at Oak Ridge National Laboratory (ORNL) has a diverse portfolio of computational resources ranging from a petascale XT4/XT5 simulation system (Jaguar) to numerous other systems supporting development, visualization, and data analytics. In order to support vastly different I/O needs of these systems Spider, a Lustre-based center wide file system was designed and deployed to provide over 240 GB/s of aggregate throughput with over 10 Petabytes of formatted capacity. A multi-stage InfiniBand network, dubbed as Scalable I/O Network (SION), with over 889 GB/s of bisectional bandwidth was deployed as part of Spider to provide connectivity to our simulation, development, visualization, and other platforms. To our knowledge, while writing this paper, Spider is the largest and fastest POSIX-compliant parallel file system in production. This paper will detail the overall architecture of the Spider system, challenges in deploying and initial testings of a file system of this scale, and novel solutions to these challenges which offer key insights into file system design in the future.

  13. File-System Workload on a Scientific Multiprocessor

    NASA Technical Reports Server (NTRS)

    Kotz, David; Nieuwejaar, Nils

    1995-01-01

    Many scientific applications have intense computational and I/O requirements. Although multiprocessors have permitted astounding increases in computational performance, the formidable I/O needs of these applications cannot be met by current multiprocessors a their I/O subsystems. To prevent I/O subsystems from forever bottlenecking multiprocessors and limiting the range of feasible applications, new I/O subsystems must be designed. The successful design of computer systems (both hardware and software) depends on a thorough understanding of their intended use. A system designer optimizes the policies and mechanisms for the cases expected to most common in the user's workload. In the case of multiprocessor file systems, however, designers have been forced to build file systems based only on speculation about how they would be used, extrapolating from file-system characterizations of general-purpose workloads on uniprocessor and distributed systems or scientific workloads on vector supercomputers (see sidebar on related work). To help these system designers, in June 1993 we began the Charisma Project, so named because the project sought to characterize 1/0 in scientific multiprocessor applications from a variety of production parallel computing platforms and sites. The Charisma project is unique in recording individual read and write requests-in live, multiprogramming, parallel workloads (rather than from selected or nonparallel applications). In this article, we present the first results from the project: a characterization of the file-system workload an iPSC/860 multiprocessor running production, parallel scientific applications at NASA's Ames Research Center.

  14. TOXICS RELEASE INVENTORY - GEOGRAPHIC INFORMATION SYSTEM COVERAGE FILES

    EPA Science Inventory

    Data extracted from the EPA Toxics Release Inventory (TRI) system for reporting year 1993 are written in Arc/INFO geographic information system (GIS) export file format (an ASCII data exchange format). The data are also summarized in tables out of the TRI public data release publ...

  15. A Probabilistic Geocoding System based on a National Address File

    E-print Network

    McCreath, Eric Charles

    of Health, Locked Mail Bag 961, North Sydney NSW 2059, Australia, {tchur,awill}@doh.health of geographical health issues is given in [1]. When combined with a street navigation system, accurate geocodedA Probabilistic Geocoding System based on a National Address File Peter Christen1 , Tim Churches2

  16. A Probabilistic Geocoding System based on a National Address File

    E-print Network

    McCreath, Eric Charles

    Department of Health, Locked Mail Bag 961, North Sydney NSW 2059, Australia, {tchur,awill}@doh.health of geographical health issues is given in [1]. When combined with a street navigation system, accurate geocodedA Probabilistic Geocoding System based on a National Address File Peter Christen 1# , Tim Churches

  17. Deploying Server-side File System Monitoring at NERSC

    SciTech Connect

    Uselton, Andrew

    2009-05-01

    The Franklin Cray XT4 at the NERSC center was equipped with the server-side I/O monitoring infrastructure Cerebro/LMT, which is described here in detail. Insights gained from the data produced include a better understanding of instantaneous data rates during file system testing, file system behavior during regular production time, and long-term average behaviors. Information and insights gleaned from this monitoring support efforts to proactively manage the I/O infrastructure on Franklin. A simple model for I/O transactions is introduced and compared with the 250 million observations sent to the LMT database from August 2008 to February 2009.

  18. Macro-modeling and energy efficiency studies of file management in embedded systems with flash memory 

    E-print Network

    Goyal, Nitesh

    2006-08-16

    processor and flash in an embedded system heavily depends on the choice of file system in use. To address this problem, it is necessary to provide sys- tem developers with energy profiles of file system activities and energy efficient file systems...

  19. Preliminary specification File under Integrated Circuits, IC11

    E-print Network

    Ida, Nathan

    ; 64 leads (lead length 1.6 mm); body 14 × 14 × 2.7 mm SOT393-1 #12;1997 Jul 09 3 Philips VCC2V12 VCC5 UNDER VOLTAGE GENERATOR PWM DECODER POR DETECTOR to spindle section 1 GNDSUBB GNDV 2 165 VCC5 disable disable brake DRIVER DRIVER from PORN block VCCS12 disable disable b

  20. SCFS: A Shared Cloud-backed File System Alysson Bessani,1

    E-print Network

    Neves, Nuno

    synchro- nization services (e.g., DropBox) and (2) cloud-backed file systems (e.g., S3FS [6]). Services access protocols such as NFS and CIFS. The proxy im- plements the core file system functionalitySCFS: A Shared Cloud-backed File System Alysson Bessani,1 Ricardo Mendes,1 Tiago Oliveira,1 Nuno

  1. 75 FR 27986 - Electronic Filing System-Web (EFS-Web) Contingency Option

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... for Electronic Filing System--Web (EFS-Web), 74 FR 55200, 55204 (October 27, 2009) (notice), and... States Patent and Trademark Office Electronic Filing System--Web (EFS-Web) Contingency Option AGENCY..., Electronic Filing System--Web (EFS-Web) by providing a new contingency option when the primary portal to...

  2. Aurora: Adaptive Block Replication in Distributed File Systems

    E-print Network

    Boutaba, Raouf

    Aurora: Adaptive Block Replication in Distributed File Systems Qi Zhang, Sai Qian Zhang, Alberto and practical for implementation. We further present Aurora, a dynamic block placement mechanism that implements traces from Yahoo! and Facebook, we show Aurora reduces machine load imbalance by up to 26.9% compared

  3. 76 FR 61956 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

    ... published at 47 CFR in parts 61 and 64 published at 76 FR 43206, July 20, 2011, are effective November 17... requirements contained in the Commission's Order, FCC 11-92, published at 76 FR 43206, July 20, 2011. The OMB... COMMISSION 47 CFR Parts 61 and 64 Electronic Tariff Filing System (ETFS) AGENCY: Federal...

  4. Designing A Secure Reliable File System for Sensor Neerja Bhatnagar

    E-print Network

    Cortes, Corinna

    in terms of mem- ory, computation, storage, and energy. Most sensor nodes follow a sleep-awake-sense-sleep is granted without fee provided that copies are not made or distributed for profit or commercial advantage, including its advantages and disadvantages; Section 5 compares and contrasts the file system presented

  5. The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1

    E-print Network

    Fernandez, Eduardo

    SQUARE FT RUN DATE/TIME: 07/02/2014 8:10 SITE: 0004 PINE JOG CENTER TEACHING RESEARCH OFFICE AUD INSTRUCT SQUARE FT RUN DATE/TIME: 07/02/2014 8:10 SITE: 0005 FAU FT LAU TEACHING RESEARCH OFFICE AUD INSTRUCT STUThe SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1 PGM = SPAIC V01 - 2014 FLORIDA ATLANTIC

  6. Towards Realistic Benchmarking for Cloud File Systems: Early Experiences

    E-print Network

    Shi, Weisong

    computing. Many large-scale cloud platforms such as Amazon EC2 [1] and Microsoft Azure [2], have been, which is one of the largest cloud platforms in Asia. This cloud platform provides two public cloud implemented and widely used in practice. Cloud file systems, as the fundamental parts of cloud platforms

  7. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Required use of magnetic media for returns by organizations required...301.6033-4 Required use of magnetic media for returns by organizations required...file returns under section 6033 on magnetic media. An organization required to file a...

  8. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Required use of magnetic media for returns by organizations required...301.6033-4 Required use of magnetic media for returns by organizations required...file returns under section 6033 on magnetic media. An organization required to file a...

  9. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Required use of magnetic media for returns by organizations required...301.6033-4 Required use of magnetic media for returns by organizations required...file returns under section 6033 on magnetic media. An organization required to file a...

  10. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Required use of magnetic media for returns by organizations required...301.6033-4 Required use of magnetic media for returns by organizations required...file returns under section 6033 on magnetic media. An organization required to file a...

  11. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Required use of magnetic media for returns by organizations required...301.6033-4 Required use of magnetic media for returns by organizations required...file returns under section 6033 on magnetic media. An organization required to file a...

  12. Troubleshooting: I uploaded my file but how do I get it to show up under my class?....................2

    E-print Network

    Gopalakrishnan, K.

    Troubleshooting: I uploaded my file but how do I get it to show up under my class?....................2 I uploaded my file but it disappeared. How do I find it?.....................................3 I upload it to iWebfolio?................................ 13 Where can I get more help

  13. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 13 2010-04-01 2010-04-01 false Required use of magnetic media for returns by... Returns § 1.6033-4 Required use of magnetic media for returns by organizations required to file returns under section 6033. The return of an organization that is required to be filed on magnetic media...

  14. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 13 2011-04-01 2011-04-01 false Required use of magnetic media for returns by...) Information Returns § 1.6033-4 Required use of magnetic media for returns by organizations required to file returns under section 6033. The return of an organization that is required to be filed on magnetic...

  15. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 13 2012-04-01 2012-04-01 false Required use of magnetic media for returns by...) Information Returns § 1.6033-4 Required use of magnetic media for returns by organizations required to file returns under section 6033. The return of an organization that is required to be filed on magnetic...

  16. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 18 2014-04-01 2014-04-01 false Required use of magnetic media for returns by... ADMINISTRATION Information and Returns Returns and Records § 301.6033-4 Required use of magnetic media for... required to file returns under section 6033 on magnetic media. An organization required to file a...

  17. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Required use of magnetic media for returns by... ADMINISTRATION Information and Returns Returns and Records § 301.6033-4 Required use of magnetic media for... required to file returns under section 6033 on magnetic media. An organization required to file a...

  18. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 13 2014-04-01 2014-04-01 false Required use of magnetic media for returns by...) Information Returns § 1.6033-4 Required use of magnetic media for returns by organizations required to file returns under section 6033. The return of an organization that is required to be filed on magnetic...

  19. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 18 2013-04-01 2013-04-01 false Required use of magnetic media for returns by... ADMINISTRATION Information and Returns Returns and Records § 301.6033-4 Required use of magnetic media for... required to file returns under section 6033 on magnetic media. An organization required to file a...

  20. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 18 2012-04-01 2012-04-01 false Required use of magnetic media for returns by... ADMINISTRATION Information and Returns Returns and Records § 301.6033-4 Required use of magnetic media for... required to file returns under section 6033 on magnetic media. An organization required to file a...

  1. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 13 2013-04-01 2013-04-01 false Required use of magnetic media for returns by...) Information Returns § 1.6033-4 Required use of magnetic media for returns by organizations required to file returns under section 6033. The return of an organization that is required to be filed on magnetic...

  2. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 18 2011-04-01 2011-04-01 false Required use of magnetic media for returns by... ADMINISTRATION Information and Returns Returns and Records § 301.6033-4 Required use of magnetic media for... required to file returns under section 6033 on magnetic media. An organization required to file a...

  3. Online De-duplication in a Log-Structured File System for Primary Storage

    E-print Network

    California at Santa Cruz, University of

    Online De-duplication in a Log-Structured File System for Primary Storage Technical Report UCSC of Engineering University of California, Santa Cruz Santa Cruz, CA 95064 http://www.ssrc.ucsc.edu/ Filed 2010. #12;UNIVERSITY OF CALIFORNIA SANTA CRUZ ONLINE DE-DUPLICATION IN A LOG-STRUCTURED FILE SYSTEM

  4. Direct-pNFS: Scalable, transparent, and versatile access to parallel file systems

    E-print Network

    Honeyman, Peter

    platforms. Distributed file access protocols such as NFS [5] and CIFS [6] bridge the interop- erability gapDirect-pNFS: Scalable, transparent, and versatile access to parallel file systems Dean Hildebrand as well as a scalable and agile name space. While parallel file systems give high I/O throughput

  5. IRON File Systems Vijayan Prabhakaran, Lakshmi N. Bairavasundaram, Nitin Agrawal, Haryadi S. Gunawi,

    E-print Network

    Arpaci-Dusseau, Andrea

    IRON File Systems Vijayan Prabhakaran, Lakshmi N. Bairavasundaram, Nitin Agrawal, Haryadi S. GunawiNess (IRON), which includes both failure detection and recov- ery techniques. We show that commodity file IRON file system, Linux ixt3, showing that techniques such as in-disk checksumming, replication

  6. IRON File Systems Vijayan Prabhakaran, Lakshmi N. Bairavasundaram, Nitin Agrawal, Haryadi S. Gunawi,

    E-print Network

    Arpaci-Dusseau, Remzi

    IRON File Systems Vijayan Prabhakaran, Lakshmi N. Bairavasundaram, Nitin Agrawal, Haryadi S. GunawiNess (IRON), which includes both failure detection and recov­ ery techniques. We show that commodity file IRON file system, Linux ixt3, showing that techniques such as in­disk checksumming, replication

  7. Verifiable Audit Trails for a Versioning File System Randal Burns, Zachary Peterson, Giuseppe Ateniese, Stephen Bono

    E-print Network

    Ateniese, Giuseppe

    Verifiable Audit Trails for a Versioning File System Randal Burns, Zachary Peterson, Giuseppe constructs that create, manage, and verify dig- ital audit trails for versioning file systems. Based upon. Audit trails create an analog of the paper audit process for file data, helping to meet the requirements

  8. Backup, Recovery and Archiving of Files in a Multi-Access Computing System 

    E-print Network

    Wight, Alexander Sinclair

    1974-01-01

    General-purpose multi-access computing systems with files stored on random-access devices require that these files be protected. If the total on-line storage is inadequate there is a need for wellorganized off-line ...

  9. Distributed PACS using distributed file system with hierarchical meta data servers.

    PubMed

    Hiroyasu, Tomoyuki; Minamitani, Yoshiyuki; Miki, Mitsunori; Yokouchi, Hisatake; Yoshimi, Masato

    2012-01-01

    In this research, we propose a new distributed PACS (Picture Archiving and Communication Systems) which is available to integrate several PACSs that exist in each medical institution. The conventional PACS controls DICOM file into one data-base. On the other hand, in the proposed system, DICOM file is separated into meta data and image data and those are stored individually. Using this mechanism, since file is not always accessed the entire data, some operations such as finding files, changing titles, and so on can be performed in high-speed. At the same time, as distributed file system is utilized, accessing image files can also achieve high-speed access and high fault tolerant. The introduced system has a more significant point. That is the simplicity to integrate several PACSs. In the proposed system, only the meta data servers are integrated and integrated system can be constructed. This system also has the scalability of file access with along to the number of file numbers and file sizes. On the other hand, because meta-data server is integrated, the meta data server is the weakness of this system. To solve this defect, hieratical meta data servers are introduced. Because of this mechanism, not only fault--tolerant ability is increased but scalability of file access is also increased. To discuss the proposed system, the prototype system using Gfarm was implemented. For evaluating the implemented system, file search operating time of Gfarm and NFS were compared. PMID:23367269

  10. An in vitro CT Comparison of Gutta-Percha Removal with Two Rotary Systems and Hedstrom Files

    PubMed Central

    Yadav, Pankaj; Bharath, Makonahalli Jaganath; Sahadev, Chickmagravalli Krishnegowda; Makonahalli Ramachandra, Praveen Kumar; Rao, Yogesh; Ali, Ambereen; Mohamed, Shahnawaz

    2013-01-01

    Introduction To evaluate the efficacy of NiTi mechanical rotary instrumentation and Hedstrom file for gutta-percha/sealer removal computed tomography (CT) was utilized in vitro. Materials and Methods Thirty extracted human single rooted teeth, each with a single canal were selected. The samples were decoronated with a double faced diamond disk to have 17-mm root; teeth roots were instrumented with K-files up to master apical file #30 using step back technique. Samples were obturated using cold lateral condensation of gutta-percha and AH Plus root canal sealer. The teeth were then randomly divided into three groups of 10 specimens each. After 2 weeks 3-dimensional images of the roots were obtained by CT and the volume of root filling mass was measured. All the canals were then retreated by either the ProTaper retreatment files, Mtwo retreatment files or Hedstrom files. The canals were irrigated with 2 mL of 2.5% sodium hypochlorite irrigating solution during each change of instrument. The volume of remaining filling materials after the retreatment procedures was assessed by CT. Statistical analysis was performed with one-way ANOVA and Tukey’s post hoc test. Results Neither of studied systems completely removed the root filling material. No significant difference was observed between the rotary systems. The volume of remaining filling materials was significantly less in rotary instrumentation than hand files. There was no significant difference for debris extruded from the apical foramen between the groups. Conclusion Under the experimental conditions, Mtwo and ProTaper retreatment files left less gutta-percha and sealer than H files; however, complete removal of filling materials was not achieved by the three systems investigated. PMID:23717331

  11. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...iv) A section 501(c)(21) black lung trust required to file under § 1...and Initial Excise Tax Return for Black Lung Benefit Trusts and Certain Related...electronic notification. Thus, a black lung trust that normally has...

  12. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...iv) A section 501(c)(21) black lung trust required to file under § 1...and Initial Excise Tax Return for Black Lung Benefit Trusts and Certain Related...electronic notification. Thus, a black lung trust that normally has...

  13. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...iv) A section 501(c)(21) black lung trust required to file under § 1...and Initial Excise Tax Return for Black Lung Benefit Trusts and Certain Related...electronic notification. Thus, a black lung trust that normally has...

  14. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...specified in paragraph (c) of this section, ABS informational and computational material...not be filed under this section: (1) ABS informational and computational material...asset-backed securities. (2) Any ABS informational and computational...

  15. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...specified in paragraph (c) of this section, ABS informational and computational material...not be filed under this section: (1) ABS informational and computational material...asset-backed securities. (2) Any ABS informational and computational...

  16. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...specified in paragraph (c) of this section, ABS informational and computational material...not be filed under this section: (1) ABS informational and computational material...asset-backed securities. (2) Any ABS informational and computational...

  17. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...specified in paragraph (c) of this section, ABS informational and computational material...not be filed under this section: (1) ABS informational and computational material...asset-backed securities. (2) Any ABS informational and computational...

  18. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...specified in paragraph (c) of this section, ABS informational and computational material...not be filed under this section: (1) ABS informational and computational material...asset-backed securities. (2) Any ABS informational and computational...

  19. 75 FR 29312 - Notice Regarding the Elimination of the Fee for Petitions To Make Special Filed Under the Patent...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-25

    ...DEPARTMENT OF COMMERCE Patent and Trademark Office [Docket No.: PTO-2010-0031...Petitions To Make Special Filed Under the Patent Prosecution Highway (PPH) Programs AGENCY: United States Patent and Trademark Office, Commerce....

  20. 7 CFR 1.670 - How must documents be filed and served under §§ 1.670 through 1.673?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must documents be filed and served under §§ 1.670 through 1.673?...

  1. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Administration DEPARTMENT OF JUSTICE (CONTINUED) REGULATIONS RELATING TO THE BANKRUPTCY REFORM ACTS OF 1978 AND... Reimbursement of Expenses Filed Under 11 U.S.C. 330 (a) General Information. (1) The Bankruptcy Reform Act...

  2. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Administration DEPARTMENT OF JUSTICE (CONTINUED) REGULATIONS RELATING TO THE BANKRUPTCY REFORM ACTS OF 1978 AND... Reimbursement of Expenses Filed Under 11 U.S.C. 330 (a) General Information. (1) The Bankruptcy Reform Act...

  3. 26 CFR 1.1503(d)-1 - Definitions and special rules for filings under section 1503(d).

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Definitions and special rules for filings under section 1503(d). 1.1503(d)-1 Section 1.1503(d)-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED)...

  4. 26 CFR 1.1503(d)-1 - Definitions and special rules for filings under section 1503(d).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Definitions and special rules for filings under section 1503(d). 1.1503(d)-1 Section 1.1503(d)-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED)...

  5. Part III: AFS - A Secure Distributed File System

    SciTech Connect

    Wachsmann, A.; /SLAC

    2005-06-29

    AFS is a secure distributed global file system providing location independence, scalability and transparent migration capabilities for data. AFS works across a multitude of Unix and non-Unix operating systems and is used at many large sites in production for many years. AFS still provides unique features that are not available with other distributed file systems even though AFS is almost 20 years old. This age might make it less appealing to some but with IBM making AFS available as open-source in 2000, new interest in use and development was sparked. When talking about AFS, people often mention other file systems as potential alternatives. Coda (http://www.coda.cs.cmu.edu/) with its disconnected mode will always be a research project and never have production quality. Intermezzo (http://www.inter-mezzo.org/) is now in the Linux kernel but not available for any other operating systems. NFSv4 (http://www.nfsv4.org/) which picked up many ideas from AFS and Coda is not mature enough yet to be used in serious production mode. This article presents the rich features of AFS and invites readers to play with it.

  6. Methods and apparatus for multi-resolution replication of files in a parallel computing system using semantic information

    DOEpatents

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Grider, Gary; Torres, Aaron

    2015-10-20

    Techniques are provided for storing files in a parallel computing system using different resolutions. A method is provided for storing at least one file generated by a distributed application in a parallel computing system. The file comprises one or more of a complete file and a sub-file. The method comprises the steps of obtaining semantic information related to the file; generating a plurality of replicas of the file with different resolutions based on the semantic information; and storing the file and the plurality of replicas of the file in one or more storage nodes of the parallel computing system. The different resolutions comprise, for example, a variable number of bits and/or a different sub-set of data elements from the file. A plurality of the sub-files can be merged to reproduce the file.

  7. Detecting Data Concealment Programs Using Passive File System Analysis

    NASA Astrophysics Data System (ADS)

    Davis, Mark; Kennedy, Richard; Pyles, Kristina; Strickler, Amanda; Shenoi, Sujeet

    Individuals who wish to avoid leaving evidence on computers and networks often use programs that conceal data from conventional digital forensic tools. This paper discusses the application of passive file system analysis techniques to detect trace evidence left by data concealment programs. In addition, it describes the design and operation of Seraph, a tool that determines whether certain encryption, steganography and erasing programs were used to hide or destroy data.

  8. DEVELOPMENT OF THE NATIONAL ACID PRECIPITATION ASSESSMENT PROGRAM (NAPAP) EMISSIONS INVENTORY, 1980: THE FLEXIBLE REGIONAL EMISSIONS DATA SYSTEM (SOFTWARE, ALLOCATION FACTOR FILES, PERIPHERAL DATA FILES)

    EPA Science Inventory

    The package contains documentation of the Flexible Regional Emissions Data System (FREDS) for the 1980 NAPAP Emissions Inventory, FREDS source code, allocation factor files, and peripheral data files. FREDS extracts emissions data, pertinent modeling parameters (e.g., stack heigh...

  9. Generation and use of the Goddard trajectory determination system SLP ephemeris files

    NASA Technical Reports Server (NTRS)

    Armstrong, M. G.; Tomaszewski, I. B.

    1973-01-01

    Information is presented to acquaint users of the Goddard Trajectory Determination System Solar/Lunar/Planetary ephemeris files with the details connected with the generation and use of these files. In particular, certain sections constitute a user's manual for the ephemeris files.

  10. 28 CFR 58.7 - Procedures for Completing Uniform Forms of Trustee Final Reports in Cases Filed Under Chapters 7...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... shall be filed via the United States Bankruptcy Courts Case Management/Electronic Case Filing System (CM...) in preparation for closing an asset case. This report must be submitted to the United States Trustee... following: (1) Summary of the trustee's case administration; (2) Copies of the estate's financial...

  11. The European Southern Observatory-MIDAS table file system

    NASA Technical Reports Server (NTRS)

    Peron, M.; Grosbol, P.

    1992-01-01

    The new and substantially upgraded version of the Table File System in MIDAS is presented as a scientific database system. MIDAS applications for performing database operations on tables are discussed, for instance, the exchange of the data to and from the TFS, the selection of objects, the uncertainty joins across tables, and the graphical representation of data. This upgraded version of the TFS is a full implementation of the binary table extension of the FITS format; in addition, it also supports arrays of strings. Different storage strategies for optimal access of very large data sets are implemented and are addressed in detail. As a simple relational database, the TFS may be used for the management of personal data files. This opens the way to intelligent pipeline processing of large amounts of data. One of the key features of the Table File System is to provide also an extensive set of tools for the analysis of the final results of a reduction process. Column operations using standard and special mathematical functions as well as statistical distributions can be carried out; commands for linear regression and model fitting using nonlinear least square methods and user-defined functions are available. Finally, statistical tests of hypothesis and multivariate methods can also operate on tables.

  12. UnityFS: A File System for the Unity Block Store A thesis submitted in conformity with the requirements

    E-print Network

    Lie, David

    Application CIFS Common Internet File Systems DE Data Entity DHT Distributed Hash Table EXT Extended FileUnityFS: A File System for the Unity Block Store by Wei Huang A thesis submitted in conformity Engineering University of Toronto c Copyright 2013 by Wei Huang #12;Abstract UnityFS: A File System

  13. 77 FR 51530 - Amended Environmental Impact Statement Filing System Guidance for Implementing 40 CFR 1506.9 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-24

    ... AGENCY Amended Environmental Impact Statement Filing System Guidance for Implementing 40 CFR 1506.9 and... Implementing Regulations (40 CFR Parts 1500-1508), and are totally separate from the substantive EPA reviews performed pursuant to both NEPA and Section 309 of the Clean Air Act. Under 40 CFR 1506.9, EPA can...

  14. Methods and apparatus for capture and storage of semantic information with sub-files in a parallel computing system

    DOEpatents

    Faibish, Sorin; Bent, John M; Tzelnic, Percy; Grider, Gary; Torres, Aaron

    2015-02-03

    Techniques are provided for storing files in a parallel computing system using sub-files with semantically meaningful boundaries. A method is provided for storing at least one file generated by a distributed application in a parallel computing system. The file comprises one or more of a complete file and a plurality of sub-files. The method comprises the steps of obtaining a user specification of semantic information related to the file; providing the semantic information as a data structure description to a data formatting library write function; and storing the semantic information related to the file with one or more of the sub-files in one or more storage nodes of the parallel computing system. The semantic information provides a description of data in the file. The sub-files can be replicated based on semantically meaningful boundaries.

  15. 20 CFR 410.219 - Filing a claim under State workmen's compensation law; when filing such claim shall be considered...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV-BLACK LUNG BENEFITS (1969- ) Requirements for Entitlement; Duration of Entitlement; Filing of Claims and Evidence §...

  16. 76 FR 52549 - Suspension of the Duty To File Reports for Classes of Asset-Backed Securities Under Section 15(D...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-23

    ...240 and 249 [Release No. 34-65148; File No. S7-02-11] RIN 3235-AK89 Suspension of the Duty To File Reports for Classes of Asset- Backed Securities...the automatic suspension of the duty to file under Section 15(d) of the...

  17. 76 FR 2049 - Suspension of the Duty To File Reports for Classes of Asset-Backed Securities Under Section 15(d...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ...240 and 249 [Release No. 34-63652; File No. S7-02-11] RIN 3235-AK89 Suspension of the Duty To File Reports for Classes of Asset- Backed Securities...the automatic suspension of the duty to file under Section 15(d) of the...

  18. Implementing Journaling in a Linux Shared Disk File System

    NASA Technical Reports Server (NTRS)

    Preslan, Kenneth W.; Barry, Andrew; Brassow, Jonathan; Cattelan, Russell; Manthei, Adam; Nygaard, Erling; VanOort, Seth; Teigland, David; Tilstra, Mike; O'Keefe, Matthew; Erickson, Grant; Agarwal, Manish

    2000-01-01

    In computer systems today, speed and responsiveness is often determined by network and storage subsystem performance. Faster, more scalable networking interfaces like Fibre Channel and Gigabit Ethernet provide the scaffolding from which higher performance computer systems implementations may be constructed, but new thinking is required about how machines interact with network-enabled storage devices. In this paper we describe how we implemented journaling in the Global File System (GFS), a shared-disk, cluster file system for Linux. Our previous three papers on GFS at the Mass Storage Symposium discussed our first three GFS implementations, their performance, and the lessons learned. Our fourth paper describes, appropriately enough, the evolution of GFS version 3 to version 4, which supports journaling and recovery from client failures. In addition, GFS scalability tests extending to 8 machines accessing 8 4-disk enclosures were conducted: these tests showed good scaling. We describe the GFS cluster infrastructure, which is necessary for proper recovery from machine and disk failures in a collection of machines sharing disks using GFS. Finally, we discuss the suitability of Linux for handling the big data requirements of supercomputing centers.

  19. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 17 Commodity and Securities Exchanges 2 2011-04-01 2011-04-01 false Filing of certain prospectuses and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a)...

  20. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Filing of certain prospectuses and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a)...

  1. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 17 Commodity and Securities Exchanges 2 2012-04-01 2012-04-01 false Filing of certain prospectuses and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a)...

  2. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 17 Commodity and Securities Exchanges 2 2013-04-01 2013-04-01 false Filing of certain prospectuses and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a)...

  3. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 17 Commodity and Securities Exchanges 3 2014-04-01 2014-04-01 false Filing of certain prospectuses and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a)...

  4. 37 CFR 1.109 - Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... claimed invention under the Leahy-Smith America Invents Act. 1.109 Section 1.109 Patents, Trademarks, and... a claimed invention under the Leahy-Smith America Invents Act. (a) The effective filing date for a claimed invention in a patent or application for patent, other than in a reissue application or...

  5. 37 CFR 1.109 - Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... claimed invention under the Leahy-Smith America Invents Act. 1.109 Section 1.109 Patents, Trademarks, and... a claimed invention under the Leahy-Smith America Invents Act. (a) The effective filing date for a claimed invention in a patent or application for patent, other than in a reissue application or...

  6. Design, implementation, and benchmarking of a file manager for a relational database management system on a raw UNIX disk 

    E-print Network

    Narayanan, Pudugramam Shanker

    1994-01-01

    The file management component of a database management system (DBMS) has to be tailor designed to meet the performance demands of large database applications. The operating system (OS) file systems are typically not suitable for storing...

  7. Free Riders under Control through Service Differentiation in Peer-to-Peer Systems

    E-print Network

    Boutaba, Raouf

    of the peer are used to assess its Contribution Behavior. Simulation results confirm the abilityFree Riders under Control through Service Differentiation in Peer-to-Peer Systems Loubna Mekouar: rboutaba@bbcr.uwaterloo.ca Abstract- Trust is required in a file sharing peer-to-peer system to achieve

  8. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...General Investigative File System. 4902.11 Section...GUARANTY CORPORATION INTERNAL AND ADMINISTRATIVE RULES...General Investigative File System. (a) Criminal Law...could discourage the free flow of information in a criminal...not apply because this system is exempt from...

  9. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...General Investigative File System. 4902.11 Section...GUARANTY CORPORATION INTERNAL AND ADMINISTRATIVE RULES...General Investigative File System. (a) Criminal Law...could discourage the free flow of information in a criminal...not apply because this system is exempt from...

  10. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...General Investigative File System. 4902.11 Section...GUARANTY CORPORATION INTERNAL AND ADMINISTRATIVE RULES...General Investigative File System. (a) Criminal Law...could discourage the free flow of information in a criminal...not apply because this system is exempt from...

  11. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...General Investigative File System. 4902.11 Section...GUARANTY CORPORATION INTERNAL AND ADMINISTRATIVE RULES...General Investigative File System. (a) Criminal Law...could discourage the free flow of information in a criminal...not apply because this system is exempt from...

  12. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...General Investigative File System. 4902.11 Section...GUARANTY CORPORATION INTERNAL AND ADMINISTRATIVE RULES...General Investigative File System. (a) Criminal Law...could discourage the free flow of information in a criminal...not apply because this system is exempt from...

  13. Anesthetic cartridge system under evaluation.

    PubMed

    Cooley, R L; Lubow, R M

    1981-01-01

    The problem of glass breakage in the local anesthetic cartridge system was evaluated under laboratory conditions with a mechanical testing machine. The anticipated breakage of the glass did not occur with any frequency, as the rubber stopper produced more uniform failures of the system. The glass cartridge appeared to be quite reliable and resistant to breakage.Local anesthetics have been used for many years to provide patients temporary freedom from pain. Local anesthetic solutions are in wide use in both dentistry and medicine and are the most frequently used drugs in dentistry. Various estimates place the number of injections at approximately one half million daily or 125 million injections per year.These drugs and the armamentarium necessary to administer them have proven to be safe and reliable. Only rarely are there reports of sensitivity to the anesthetic solution or breakage of needles.. Sterility of the solutions has not been a problem as they are carefully processed and evaluated at the factory. Although there are sporadic reports of loss of sterility, this has been attributed to the reuse of the anesthetic cartridges on more than one patient. Monheim states "The success of the cartridge system in dentistry has been due to the sincerity, honesty, and high standards of the manufacturers in giving the profession a near-perfect product." However, on occassion a glass cartridge will break or shatter when inserting the harpoon into the rubber stopper or even during injection. Cooley et al reported on eye injuries occurring in the dental office, one of which was due to glass from a local anesthetic cartridge that exploded and propelled particles into the patient's eye. Forrest evaluated syringes, needles, and cartridges and reported that one brand (made in Britain) fractured more often than any other, but that the fracture rate was too low to be of any consequence.It is apparent that glass cartridges will fracture or burst from time to time. This study evaluates the cartridge system with carefully controlled laboratory procedures. The cartridges were tested under various pressures and conditions in an attempt to determine the causes of failure and when such failure may be anticipated. PMID:6939350

  14. On the Ubiquity of Logging in Distributed File Systems M. Satyanarayanan

    E-print Network

    Satyanarayanan, Mahadev "Satya"

    On the Ubiquity of Logging in Distributed File Systems M. Satyanarayanan James J. Kistler Puneet Kumar Hank Mashburn School of Computer Science Carnegie Mellon University Pittsburgh, PA 15213 Logging describe how logging in different guises is used in the Coda File System [5, 11]. Coda is a distributed

  15. Conjunction Dysfunction: The Weakness of Conjunctive Queries in Peer-to-Peer File-sharing Systems

    E-print Network

    Conjunction Dysfunction: The Weakness of Conjunctive Queries in Peer-to-Peer File-sharing Systems-to-peer file-sharing systems use conjunctive queries as a way of controlling query cost in the absence of information about the behavior of other peers. Conjunctive queries are good at increa- sing the precision

  16. AN AUTOMATED TOOL FOR HDL AND CONFIGURATION FILE GENERATION FROM UML SYSTEM DESCRIPTIONS

    E-print Network

    Thornton, Mitchell

    #12;AN AUTOMATED TOOL FOR HDL AND CONFIGURATION FILE GENERATION FROM UML SYSTEM DESCRIPTIONS _________________________________ Dr. Frank Coyle _________________________________ Dr. Sukumaran Nair #12;AN AUTOMATED TOOL FOR HDL An Automated Tool for HDL and Configuration File Generation from UML System Descriptions Advisor: Professor

  17. 78 FR 79690 - California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-31

    ... From the Federal Register Online via the Government Printing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission California Independent System Operator Corporation; Notice of Filing Take notice that on December 20, 2013, the California Independent System Operator Corporation (CAISO) filed a refund report to be made by the...

  18. Derived virtual devices: a secure distributed file system mechanism

    NASA Technical Reports Server (NTRS)

    VanMeter, Rodney; Hotz, Steve; Finn, Gregory

    1996-01-01

    This paper presents the design of derived virtual devices (DVDs). DVDs are the mechanism used by the Netstation Project to provide secure shared access to network-attached peripherals distributed in an untrusted network environment. DVDs improve Input/Output efficiency by allowing user processes to perform I/O operations directly from devices without intermediate transfer through the controlling operating system kernel. The security enforced at the device through the DVD mechanism includes resource boundary checking, user authentication, and restricted operations, e.g., read-only access. To illustrate the application of DVDs, we present the interactions between a network-attached disk and a file system designed to exploit the DVD abstraction. We further discuss third-party transfer as a mechanism intended to provide for efficient data transfer in a typical NAP environment. We show how DVDs facilitate third-party transfer, and provide the security required in a more open network environment.

  19. Evaluating the Shared Root File System Approach for Diskless High-Performance Computing Systems

    SciTech Connect

    Engelmann, Christian; Ong, Hong Hoe; Scott, Stephen L

    2009-01-01

    Diskless high-performance computing (HPC) systems utilizing networked storage have become popular in the last several years. Removing disk drives significantly increases compute node reliability as they are known to be a major source of failures. Furthermore, networked storage solutions utilizing parallel I/O and replication are able to provide increased scalability and availability. Reducing a compute node to processor(s), memory and network interface(s) greatly reduces its physical size, which in turn allows for large-scale dense HPC solutions. However, one major obstacle is the requirement by certain operating systems (OSs), such as Linux, for a root file system. While one solution is to remove this requirement from the OS, another is to share the root file system over the networked storage. This paper evaluates three networked file system solutions, NFSv4, Lustre and PVFS2, with respect to their performance, scalability, and availability features for servicing a common root file system in a diskless HPC configuration. Our findings indicate that Lustre is a viable solution as it meets both, scaling and performance requirements. However, certain availability issues regarding single points of failure and control need to be considered.

  20. Construction of the radiation oncology teaching files system for charged particle radiotherapy.

    PubMed

    Masami, Mukai; Yutaka, Ando; Yasuo, Okuda; Naoto, Takahashi; Yoshihisa, Yoda; Hiroshi, Tsuji; Tadashi, Kamada

    2013-01-01

    Our hospital started the charged particle therapy since 1996. New institutions for charged particle therapy are planned in the world. Our hospital are accepting many visitors from those newly planned medical institutions and having many opportunities to provide with the training to them. Based upon our experiences, we have developed the radiation oncology teaching files system for charged particle therapy. We adopted the PowerPoint of Microsoft as a basic framework of our teaching files system. By using our export function of the viewer any physician can create teaching files easily and effectively. Now our teaching file system has 33 cases for clinical and physics contents. We expect that we can improve the safety and accuracy of charged particle therapy by using our teaching files system substantially. PMID:23920759

  1. Taming aggressive replication in the Pangaea wide-area file system Yasushi Saito, Christos Karamanolis, Magnus Karlsson, and Mallik Mahalingam

    E-print Network

    Pâris, Jehan-François

    Taming aggressive replication in the Pangaea wide-area file system Yasushi Saito, Christos {ysaito,christos,karlsson,mmallik}@hpl.hp.com Abstract Pangaea is a wide-area file system that supports the design, implementation, and evaluation of the Pangaea file system. Pangaea offers ef- ficient, randomized

  2. 17 CFR 259.5s - Form U5S, for annual reports filed under section 5(c) of the Act.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...reports filed under section 5(c) of the Act. 259.5s Section 259.5s Commodity and Securities Exchanges SECURITIES AND...Forms for Registration and Annual Supplements § 259.5s Form U5S, for annual reports filed under section...

  3. 17 CFR 259.5s - Form U5S, for annual reports filed under section 5(c) of the Act.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...reports filed under section 5(c) of the Act. 259.5s Section 259.5s Commodity and Securities Exchanges SECURITIES AND...Forms for Registration and Annual Supplements § 259.5s Form U5S, for annual reports filed under section...

  4. 25 CFR 900.217 - Is filing a claim under the CDA our only option for resolving post-award contract disputes?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Is filing a claim under the CDA our only option for resolving post-award contract disputes? 900.217 Section 900.217 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT... filing a claim under the CDA our only option for resolving post-award contract disputes? No. The...

  5. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Required use of magnetic media for returns by organizations required...1.6033-4 Required use of magnetic media for returns by organizations required...that is required to be filed on magnetic media under § 301.6033-4 of this...

  6. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Required use of magnetic media for returns by organizations required...1.6033-4 Required use of magnetic media for returns by organizations required...that is required to be filed on magnetic media under § 301.6033-4 of this...

  7. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Required use of magnetic media for returns by organizations required...1.6033-4 Required use of magnetic media for returns by organizations required...that is required to be filed on magnetic media under § 301.6033-4 of this...

  8. 26 CFR 1.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Required use of magnetic media for returns by organizations required...1.6033-4 Required use of magnetic media for returns by organizations required...that is required to be filed on magnetic media under § 301.6033-4 of this...

  9. 5 CFR 2429.24 - Place and method of filing; acknowledgement.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...FLRA's eFiling system under paragraph (f) of this section, “legibly * * * duplicated” means that documents that you upload as attachments into the eFiling system must be legible. (i) Documents, including correspondence, in any...

  10. 5 CFR 2429.24 - Place and method of filing; acknowledgement.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...FLRA's eFiling system under paragraph (f) of this section, “legibly * * * duplicated” means that documents that you upload as attachments into the eFiling system must be legible. (i) Documents, including correspondence, in any...

  11. Migrant Student Record Transfer System (MSRTS) [machine-readable data file].

    ERIC Educational Resources Information Center

    Arkansas State Dept. of Education, Little Rock. General Education Div.

    The Migrant Student Record Transfer System (MSRTS) machine-readable data file (MRDF) is a collection of education and health data on more than 750,000 migrant children in grades K-12 in the United States (except Hawaii), the District of Columbia, and the outlying territories of Puerto Rico and the Mariana and Marshall Islands. The active file

  12. Secure Deletion on Log-structured File Systems Joel Reardon, Claudio Marforio, Srdjan Capkun, David Basin

    E-print Network

    Capkun, Srdjan

    on log- structured file systems. We focus on the YAFFS file sys- tem, widely used on Android smartphones de- vice wear. We implement these mechanisms on Nexus One smartphones and show that they succeed users ex- pect that deleting messages will delete them, clearing the browser's history will clear it

  13. The CIMARON System: Modular Programs for the Organization and Search of Large Files. Final Report.

    ERIC Educational Resources Information Center

    Aiyer, Arjun K.

    The File Organization Project has made available a set of programs which are designed to operate on large files of machine readable bibliographic records. These programs are designed as an instrument for understanding and refining the techniques of bibliographic search. This document discusses four aspects of the system: (1) The retrieval program,…

  14. CMU-ITC-88-062 An Overview of the Andrew File System

    E-print Network

    access to all existing and future computational and informational facilities on campus. Network and file describes the environment, design, and features of the file system, and ends with a summary of how it "feels and a networked "integrated computing - environment" to tie them together. Overall project goals included

  15. Maintaining a Distributed File System by Collection and Analysis of Metrics

    NASA Technical Reports Server (NTRS)

    Bromberg, Daniel

    1997-01-01

    AFS(originally, Andrew File System) is a widely-deployed distributed file system product used by companies, universities, and laboratories world-wide. However, it is not trivial to operate: runing an AFS cell is a formidable task. It requires a team of dedicated and experienced system administratores who must manage a user base numbring in the thousands, rather than the smaller range of 10 to 500 faced by the typical system administrator.

  16. Development of a user-centered radiology teaching file system

    NASA Astrophysics Data System (ADS)

    dos Santos, Marcelo; Fujino, Asa

    2011-03-01

    Learning radiology requires systematic and comprehensive study of a large knowledge base of medical images. In this work is presented the development of a digital radiology teaching file system. The proposed system has been created in order to offer a set of customized services regarding to users' contexts and their informational needs. This has been done by means of an electronic infrastructure that provides easy and integrated access to all relevant patient data at the time of image interpretation, so that radiologists and researchers can examine all available data to reach well-informed conclusions, while protecting patient data privacy and security. The system is presented such as an environment which implements a distributed clinical database, including medical images, authoring tools, repository for multimedia documents, and also a peer-reviewed model which assures dataset quality. The current implementation has shown that creating clinical data repositories on networked computer environments points to be a good solution in terms of providing means to review information management practices in electronic environments and to create customized and contextbased tools for users connected to the system throughout electronic interfaces.

  17. Cooperative storage of shared files in a parallel computing system with dynamic block size

    DOEpatents

    Bent, John M.; Faibish, Sorin; Grider, Gary

    2015-11-10

    Improved techniques are provided for parallel writing of data to a shared object in a parallel computing system. A method is provided for storing data generated by a plurality of parallel processes to a shared object in a parallel computing system. The method is performed by at least one of the processes and comprises: dynamically determining a block size for storing the data; exchanging a determined amount of the data with at least one additional process to achieve a block of the data having the dynamically determined block size; and writing the block of the data having the dynamically determined block size to a file system. The determined block size comprises, e.g., a total amount of the data to be stored divided by the number of parallel processes. The file system comprises, for example, a log structured virtual parallel file system, such as a Parallel Log-Structured File System (PLFS).

  18. Planning ATES systems under uncertainty

    NASA Astrophysics Data System (ADS)

    Jaxa-Rozen, Marc; Kwakkel, Jan; Bloemendal, Martin

    2015-04-01

    Aquifer Thermal Energy Storage (ATES) can contribute to significant reductions in energy use within the built environment, by providing seasonal energy storage in aquifers for the heating and cooling of buildings. ATES systems have experienced a rapid uptake over the last two decades; however, despite successful experiments at the individual level, the overall performance of ATES systems remains below expectations - largely due to suboptimal practices for the planning and operation of systems in urban areas. The interaction between ATES systems and underground aquifers can be interpreted as a common-pool resource problem, in which thermal imbalances or interference could eventually degrade the storage potential of the subsurface. Current planning approaches for ATES systems thus typically follow the precautionary principle. For instance, the permitting process in the Netherlands is intended to minimize thermal interference between ATES systems. However, as shown in recent studies (Sommer et al., 2015; Bakr et al., 2013), a controlled amount of interference may benefit the collective performance of ATES systems. An overly restrictive approach to permitting is instead likely to create an artificial scarcity of available space, limiting the potential of the technology in urban areas. In response, master plans - which take into account the collective arrangement of multiple systems - have emerged as an increasingly popular alternative. However, permits and master plans both take a static, ex ante view of ATES governance, making it difficult to predict the effect of evolving ATES use or climactic conditions on overall performance. In particular, the adoption of new systems by building operators is likely to be driven by the available subsurface space and by the performance of existing systems; these outcomes are themselves a function of planning parameters. From this perspective, the interactions between planning authorities, ATES operators, and subsurface conditions form a complex adaptive system, for which agent-based modelling provides a useful analysis framework. This study therefore explores the interactions between endogenous ATES adoption processes and the relative performance of different planning schemes, using an agent-based adoption model coupled with a hydrologic model of the subsurface. The models are parameterized to simulate typical operating conditions for ATES systems in a dense urban area. Furthermore, uncertainties relating to planning parameters, adoption processes, and climactic conditions are explicitly considered using exploratory modelling techniques. Results are therefore presented for the performance of different planning policies over a broad range of plausible scenarios.

  19. Toward Millions of File System IOPS on Low-Cost, Commodity Hardware

    PubMed Central

    Zheng, Da; Burns, Randal; Szalay, Alexander S.

    2013-01-01

    We describe a storage system that removes I/O bottlenecks to achieve more than one million IOPS based on a user-space file abstraction for arrays of commodity SSDs. The file abstraction refactors I/O scheduling and placement for extreme parallelism and non-uniform memory and I/O. The system includes a set-associative, parallel page cache in the user space. We redesign page caching to eliminate CPU overhead and lock-contention in non-uniform memory architecture machines. We evaluate our design on a 32 core NUMA machine with four, eight-core processors. Experiments show that our design delivers 1.23 million 512-byte read IOPS. The page cache realizes the scalable IOPS of Linux asynchronous I/O (AIO) and increases user-perceived I/O performance linearly with cache hit rates. The parallel, set-associative cache matches the cache hit rates of the global Linux page cache under real workloads. PMID:24402052

  20. 76 FR 14654 - Gulfstream Natural Gas System, L.L.C. Notice of Request Under Blanket Authorization

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-17

    ... Gulfstream's existing system to receive natural gas from Gulf LNG Pipeline, LLC in Jackson County... Energy Regulatory Commission Gulfstream Natural Gas System, L.L.C. Notice of Request Under Blanket Authorization Take notice that on March 1, 2011, Gulfstream Natural Gas System, L.L.C. (Gulfstream) filed...

  1. Efficient structured data access in parallel file systems.

    SciTech Connect

    Ching, A.; Choudhary, A.; Liao, W.-K.; Ross, R.; Gropp, W.; Mathematics and Computer Science; Northwestern Univ.

    2003-01-01

    Parallel scientific applications store and retrieve very large, structured datasets. Directly supporting these structured accesses is an important step in providing high-performance I/O solutions for these applications. High-level interfaces such as HDF5 and Parallel netCDF provide convenient APIs for accessing structured datasets, and the MPI-IO interface also supports efficient access to structured data. However, parallel ?le systems do not traditionally support such access. In this work we present an implementation of structured data access support in the context of the Parallel Virtual File System (PVFS). We call this support 'datatype I/O' because of its similarity to MPI datatypes. This support is built by using a reusable datatype-processing component from the MPICH2 MPI implementation. We describe how this component is leveraged to efficiently process structured data representations resulting from MPI-IO operations. We quantitatively assess the solution using three test applications. We also point to further optimizations in the processing path that could be leveraged for even more efficient operation.

  2. 37 CFR 201.33 - Procedures for filing Notices of Intent to Enforce a restored copyright under the Uruguay Round...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., music, motion picture, sound recording, book, etc.); (B) Name of author(s); (C) Source country; (D... (COHD) file through the Library of Congress electronic information system LC MARVEL through the Internet.... Alternative title(s) (if any): 4. Type of work: (e.g. painting, sculpture, music, motion picture,...

  3. 37 CFR 201.33 - Procedures for filing Notices of Intent to Enforce a restored copyright under the Uruguay Round...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., music, motion picture, sound recording, book, etc.); (B) Name of author(s); (C) Source country; (D... (COHD) file through the Library of Congress electronic information system LC MARVEL through the Internet.... Alternative title(s) (if any): 4. Type of work: (e.g. painting, sculpture, music, motion picture,...

  4. 37 CFR 201.33 - Procedures for filing Notices of Intent to Enforce a restored copyright under the Uruguay Round...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., music, motion picture, sound recording, book, etc.); (B) Name of author(s); (C) Source country; (D... (COHD) file through the Library of Congress electronic information system LC MARVEL through the Internet.... Alternative title(s) (if any): 4. Type of work: (e.g. painting, sculpture, music, motion picture,...

  5. 37 CFR 201.33 - Procedures for filing Notices of Intent to Enforce a restored copyright under the Uruguay Round...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... information: (A) Type of work (painting, sculpture, music, motion picture, sound recording, book, etc.); (B... (COHD) file through the Library of Congress electronic information system LC MARVEL through the Internet.... Alternative title(s) (if any): 4. Type of work: (e.g. painting, sculpture, music, motion picture,...

  6. Using Hadoop File System and MapReduce in a small/medium Grid site

    NASA Astrophysics Data System (ADS)

    Riahi, H.; Donvito, G.; Fanň, L.; Fasi, M.; Marzulli, G.; Spiga, D.; Valentini, A.

    2012-12-01

    Data storage and data access represent the key of CPU-intensive and data-intensive high performance Grid computing. Hadoop is an open-source data processing framework that includes fault-tolerant and scalable distributed data processing model and execution environment, named MapReduce, and distributed File System, named Hadoop distributed File System (HDFS). HDFS was deployed and tested within the Open Science Grid (OSG) middleware stack. Efforts have been taken to integrate HDFS with gLite middleware. We have tested the File System thoroughly in order to understand its scalability and fault-tolerance while dealing with small/medium site environment constraints. To benefit entirely from this File System, we made it working in conjunction with Hadoop Job scheduler to optimize the executions of the local physics analysis workflows. The performance of the analysis jobs which used such architecture seems to be promising, making it useful to follow up in the future.

  7. The Fifth Workshop on HPC Best Practices: File Systems and Archives

    SciTech Connect

    Hick, Jason; Hules, John; Uselton, Andrew

    2011-11-30

    The workshop on High Performance Computing (HPC) Best Practices on File Systems and Archives was the fifth in a series sponsored jointly by the Department Of Energy (DOE) Office of Science and DOE National Nuclear Security Administration. The workshop gathered technical and management experts for operations of HPC file systems and archives from around the world. Attendees identified and discussed best practices in use at their facilities, and documented findings for the DOE and HPC community in this report.

  8. Lessons Learned in Deploying the World s Largest Scale Lustre File System

    SciTech Connect

    Dillow, David A; Fuller, Douglas; Wang, Feiyi; Oral, H Sarp; Zhang, Zhe; Hill, Jason J; Shipman, Galen M

    2010-01-01

    The Spider system at the Oak Ridge National Laboratory's Leadership Computing Facility (OLCF) is the world's largest scale Lustre parallel file system. Envisioned as a shared parallel file system capable of delivering both the bandwidth and capacity requirements of the OLCF's diverse computational environment, the project had a number of ambitious goals. To support the workloads of the OLCF's diverse computational platforms, the aggregate performance and storage capacity of Spider exceed that of our previously deployed systems by a factor of 6x - 240 GB/sec, and 17x - 10 Petabytes, respectively. Furthermore, Spider supports over 26,000 clients concurrently accessing the file system, which exceeds our previously deployed systems by nearly 4x. In addition to these scalability challenges, moving to a center-wide shared file system required dramatically improved resiliency and fault-tolerance mechanisms. This paper details our efforts in designing, deploying, and operating Spider. Through a phased approach of research and development, prototyping, deployment, and transition to operations, this work has resulted in a number of insights into large-scale parallel file system architectures, from both the design and the operational perspectives. We present in this paper our solutions to issues such as network congestion, performance baselining and evaluation, file system journaling overheads, and high availability in a system with tens of thousands of components. We also discuss areas of continued challenges, such as stressed metadata performance and the need for file system quality of service alongside with our efforts to address them. Finally, operational aspects of managing a system of this scale are discussed along with real-world data and observations.

  9. 28 CFR 801.1 - Claims filed under the Federal Tort Claims Act.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...describe specific procedures to follow when filing a claim with the Court Services and Offender Supervision Agency for the District of Columbia (“CSOSA”) or the District of Columbia Pretrial Services Agency...

  10. 28 CFR 801.1 - Claims filed under the Federal Tort Claims Act.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...describe specific procedures to follow when filing a claim with the Court Services and Offender Supervision Agency for the District of Columbia (“CSOSA”) or the District of Columbia Pretrial Services Agency...

  11. 47 CFR 1.990 - Citizenship and filing requirements under the Communications Act of 1934.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...station licensees and common carrier spectrum lessees that would exceed the 25...aeronautical fixed) radio station licensees and spectrum lessees that would exceed the 20 percent...radio station licensee or common carrier spectrum lessee shall file a petition...

  12. Recent Developments in the CernVM-File System Server Backend

    NASA Astrophysics Data System (ADS)

    Meusel, R.; Blomer, J.; Buncic, P.; Ganis, G.; Heikkila, S.

    2015-05-01

    The CernVM File System (CernVM-FS) is a snapshotting read-only file system designed to deliver software to grid worker nodes over HTTP in a fast, scalable and reliable way. In recent years it became the de-facto standard method to distribute HEP experiment software in the WLCG and starts to be adopted by other grid computing communities outside HEP. This paper focusses on the recent developments of the CernVM-FS Server, the central publishing point of new file system snapshots. Using a union file system, the CernVM-FS Server allows for direct manipulation of a (normally read-only) CernVM-FS volume with copy-on-write semantics. Eventually the collected changeset is transformed into a new CernVM-FS snapshot, constituting a transactional feedback loop. The generated repository data is pushed into a content addressable storage requiring only a RESTful interface and gets distributed through a hierarchy of caches to individual grid worker nodes. Additonally we describe recent features, such as file chunking, repository garbage collection and file system history that enable CernVM- FS for a wider range of use cases.

  13. Go, and a Simple, RAM-Based File System Due: September 14, 2015, 11:59:59 pm

    E-print Network

    Srinivasan, Aravind

    Go, and a Simple, RAM-Based File System Due: September 14, 2015, 11:59:59 pm v0.2 Changes in v0: the Go systems programming language from Google, and the FUSE interface for building user-level file systems. You will use Go and the Bazil/fuse language binding to build a simple user-space file system (UFS

  14. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... may file; when to file; where to file. (a) Any person who receives a written decision issued by OSM under 30 CFR 773.28 on a challenge to an ownership or control listing or finding may file a request for... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file; when to file; where to...

  15. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... may file; when to file; where to file. (a) Any person who receives a written decision issued by OSM under 30 CFR 773.28 on a challenge to an ownership or control listing or finding may file a request for... 43 Public Lands: Interior 1 2012-10-01 2011-10-01 true Who may file; when to file; where to...

  16. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... may file; when to file; where to file. (a) Any person who receives a written decision issued by OSM under 30 CFR 773.28 on a challenge to an ownership or control listing or finding may file a request for... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false Who may file; when to file; where to...

  17. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... may file; when to file; where to file. (a) Any person who receives a written decision issued by OSM under 30 CFR 773.28 on a challenge to an ownership or control listing or finding may file a request for... 43 Public Lands: Interior 1 2014-10-01 2014-10-01 false Who may file; when to file; where to...

  18. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... may file; when to file; where to file. (a) Any person who receives a written decision issued by OSM under 30 CFR 773.28 on a challenge to an ownership or control listing or finding may file a request for... 43 Public Lands: Interior 1 2013-10-01 2013-10-01 false Who may file; when to file; where to...

  19. Virtual file system on NoSQL for processing high volumes of HL7 messages.

    PubMed

    Kimura, Eizen; Ishihara, Ken

    2015-01-01

    The Standardized Structured Medical Information Exchange (SS-MIX) is intended to be the standard repository for HL7 messages that depend on a local file system. However, its scalability is limited. We implemented a virtual file system using NoSQL to incorporate modern computing technology into SS-MIX and allow the system to integrate local patient IDs from different healthcare systems into a universal system. We discuss its implementation using the database MongoDB and describe its performance in a case study. PMID:25991240

  20. The global unified parallel file system (GUPFS) project: FY 2002 activities and results

    SciTech Connect

    Butler, Gregory F.; Lee, Rei Chi; Welcome, Michael L.

    2003-04-07

    The Global Unified Parallel File System (GUPFS) project is a multiple-phase, five-year project at the National Energy Research Scientific Computing (NERSC) Center to provide a scalable, high performance, high bandwidth, shared file system for all the NERSC production computing and support systems. The primary purpose of the GUPFS project is to make it easier to conduct advanced scientific research using the NERSC systems. This is to be accomplished through the use of a shared file system providing a unified file namespace, operating on consolidated shared storage that is directly accessed by all the NERSC production computing and support systems. During its first year, FY 2002, the GUPFS project focused on identifying, testing, and evaluating existing and emerging shared/cluster file system, SAN fabric, and storage technologies; identifying NERSC user input/output (I/O) requirements, methods, and mechanisms; and developing appropriate benchmarking methodologies and benchmark codes for a parallel environment. This report presents the activities and progress of the GUPFS project during its first year, the results of the evaluations conducted, and plans for near-term and longer-term investigations.

  1. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... to be filed under 11 CFR parts 101, 102, 104, 105, 107, 108, and 109, and any modifications or... required by 11 CFR part 105, by the close of business on the prescribed filing date. (b) Timely filed....

  2. June 8, 2011 20:19 WSPC/INSTRUCTION FILE Artificial*Restraint*Systems

    E-print Network

    Hurst, Jonathan

    June 8, 2011 20:19 WSPC/INSTRUCTION FILE Artificial*Restraint*Systems International Journal of Humanoid Robotics c World Scientific Publishing Company Artificial Restraint Systems for Walking plane. However, publications usually focus on the robot, and the restraint system remains undocumented

  3. 75 FR 48629 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ... Electronic Filing of Documents in Rulemaking Proceedings, 63 FR 24121, May 1, 1998. Electronic Filers... the goals of the 1996 Act, the Commission released the Tariff Streamlining NPRM, 61 FR 49,987... ETFS Order, 63 FR 35,539, June 30, 1998, the Bureau established July 1, 1998, as the date after...

  4. System Design of Real Time Vehicle Type Recognition Based on Video for Windows (AVI) Files

    NASA Astrophysics Data System (ADS)

    Zhan, Wei; Luo, Zhiqing

    In this system, with technology of motion detection, the data frames include vehicle digital image can be detected automatically from a Video for Windows (AVI) File, at the same time, vehicle type will be recognized and displayed automatically. The system's process consists of five steps: Read the AVI file and decompose it into digital image frames; Motion detection; Vehicle digital image processing; Counting number of black pixels included in vehicle body contour and project on car image; Module of vehicle type classification. In particular, algorithm of vehicle recognition through counting number of black pixels included in vehicle body contour is one innovation algorithm. Experiment on actual AVI files shows: the system design is simple and effective.

  5. A Next-Generation Parallel File System Environment for the OLCF

    SciTech Connect

    Dillow, David A; Fuller, Douglas; Gunasekaran, Raghul; Kim, Youngjae; Oral, H Sarp; Reitz, Doug M; Simmons, James A; Wang, Feiyi; Shipman, Galen M; Hill, Jason J

    2012-01-01

    When deployed in 2008/2009 the Spider system at the Oak Ridge National Laboratory s Leadership Computing Facility (OLCF) was the world s largest scale Lustre parallel file system. Envisioned as a shared parallel file system capable of delivering both the bandwidth and capacity requirements of the OLCF s diverse computational environment, Spider has since become a blueprint for shared Lustre environments deployed worldwide. Designed to support the parallel I/O requirements of the Jaguar XT5 system and other smallerscale platforms at the OLCF, the upgrade to the Titan XK6 heterogeneous system will begin to push the limits of Spider s original design by mid 2013. With a doubling in total system memory and a 10x increase in FLOPS, Titan will require both higher bandwidth and larger total capacity. Our goal is to provide a 4x increase in total I/O bandwidth from over 240GB=sec today to 1TB=sec and a doubling in total capacity. While aggregate bandwidth and total capacity remain important capabilities, an equally important goal in our efforts is dramatically increasing metadata performance, currently the Achilles heel of parallel file systems at leadership. We present in this paper an analysis of our current I/O workloads, our operational experiences with the Spider parallel file systems, the high-level design of our Spider upgrade, and our efforts in developing benchmarks that synthesize our performance requirements based on our workload characterization studies.

  6. A FLASH RESIDENT FILE SYSTEM FOR EMBEDDED SENSOR NETWORKS Scott Fazackerley, Ramon Lawrence

    E-print Network

    Lawrence, Ramon

    using flash specific op- erating systems to abstract the physical storage away from the applicationA FLASH RESIDENT FILE SYSTEM FOR EMBEDDED SENSOR NETWORKS Scott Fazackerley, Ramon Lawrence, often less than several kilobytes. Logged data is stored on flash memory and needs to be easily managed

  7. 76 FR 67179 - Spartanburg Water System; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... Energy Regulatory Commission Spartanburg Water System; Notice of Preliminary Permit Application Accepted..., Spartanburg Water System (Spartanburg) filed an application for a preliminary permit, pursuant to section 4(f... capacity of 150.0 kilowatts (kW); (5) a 70-foot-long, 10-foot-wide bedrock tailrace structure; and (6)...

  8. NADIR: A prototype system for detecting network and file system abuse

    SciTech Connect

    Hochberg, J.G.; Jackson, K.A.; Stallings, C.A.; McClary, J.F.; DuBois, D.H.; Ford, J.R.

    1992-10-01

    This paper describes the design of a prototype computer misuse detection system for the Los Alamos Notional Laboratory`s Integrated Computing Network (ICN). This automated expert system, the Network Anomaly Detection and Intrusion Reporter (NADIR), streamlines and supplements the manual audit record review traditionally performed by security auditors. NADIR compares network activity, as summarized in weekly profiles of individual users and the ICN as a whole, against expert rules that define security policy, improper or suspicious behavior, and normal user activity. NADIR reports suspicious behavior to security auditors and provides tools to aid in follow-up investigations. This paper describes analysis by NADIR of two types of ICN activity: user authentication and access control, and mass file storage. It highlights system design issues of data handling, exploiting existing auditing systems, and performing audit analysis at the network level.

  9. NADIR: A prototype system for detecting network and file system abuse

    SciTech Connect

    Hochberg, J.G.; Jackson, K.A.; Stallings, C.A.; McClary, J.F.; DuBois, D.H.; Ford, J.R.

    1992-01-01

    This paper describes the design of a prototype computer misuse detection system for the Los Alamos Notional Laboratory's Integrated Computing Network (ICN). This automated expert system, the Network Anomaly Detection and Intrusion Reporter (NADIR), streamlines and supplements the manual audit record review traditionally performed by security auditors. NADIR compares network activity, as summarized in weekly profiles of individual users and the ICN as a whole, against expert rules that define security policy, improper or suspicious behavior, and normal user activity. NADIR reports suspicious behavior to security auditors and provides tools to aid in follow-up investigations. This paper describes analysis by NADIR of two types of ICN activity: user authentication and access control, and mass file storage. It highlights system design issues of data handling, exploiting existing auditing systems, and performing audit analysis at the network level.

  10. The self-adjusting file (SAF) system: An evidence-based update

    PubMed Central

    Metzger, Zvi

    2014-01-01

    Current rotary file systems are effective tools. Nevertheless, they have two main shortcomings: They are unable to effectively clean and shape oval canals and depend too much on the irrigant to do the cleaning, which is an unrealistic illusionThey may jeopardize the long-term survival of the tooth via unnecessary, excessive removal of sound dentin and creation of micro-cracks in the remaining root dentin. The new Self-adjusting File (SAF) technology uses a hollow, compressible NiTi file, with no central metal core, through which a continuous flow of irrigant is provided throughout the procedure. The SAF technology allows for effective cleaning of all root canals including oval canals, thus allowing for the effective disinfection and obturation of all canal morphologies. This technology uses a new concept of cleaning and shaping in which a uniform layer of dentin is removed from around the entire perimeter of the root canal, thus avoiding unnecessary excessive removal of sound dentin. Furthermore, the mode of action used by this file system does not apply the machining of all root canals to a circular bore, as do all other rotary file systems, and does not cause micro-cracks in the remaining root dentin. The new SAF technology allows for a new concept in cleaning and shaping root canals: Minimally Invasive 3D Endodontics. PMID:25298639

  11. File under: C Web name Contracts and Documents, Policy on Approval and Execution of [April 24, 2004] Official name: Policy on Approval and Execution of Contracts and Documents [April 24, 2004 | revised under delegated authority November 17, 2008] Location

    E-print Network

    Toronto, University of

    File under: C Web name Contracts and Documents, Policy on Approval and Execution of [April 24, 2004] Official name: Policy on Approval and Execution of Contracts and Documents [April 24, 2004 | revised under Council Policy on Approval and Execution of Contracts and Documents April 24, 2004 [revised under

  12. Bimodal Biometric Person Identification System Under Perturbations

    E-print Network

    Bimodal Biometric Person Identification System Under Perturbations Miguel Carrasco1 , Luis Pizarro2 inexpensive and widely accepted biometric traits, namely face and voice information. We use a probabilistic of the face and voice classifiers alone. Keywords: Biometrics, multimodal, identificacion, face, voice, proba

  13. Extending the POSIX I/O interface: a parallel file system perspective.

    SciTech Connect

    Vilayannur, M.; Lang, S.; Ross, R.; Klundt, R.; Ward, L.; Mathematics and Computer Science; VMWare, Inc.; SNL

    2008-12-11

    The POSIX interface does not lend itself well to enabling good performance for high-end applications. Extensions are needed in the POSIX I/O interface so that high-concurrency HPC applications running on top of parallel file systems perform well. This paper presents the rationale, design, and evaluation of a reference implementation of a subset of the POSIX I/O interfaces on a widely used parallel file system (PVFS) on clusters. Experimental results on a set of micro-benchmarks confirm that the extensions to the POSIX interface greatly improve scalability and performance.

  14. Sun's Network File System (NFS) One of the first uses of distributed client/server computing was in the

    E-print Network

    Arpaci-Dusseau, Remzi

    48 Sun's Network File System (NFS) One of the first uses of distributed client/server computing was in the realm of distributed file systems. In such an environment, there are a number of client machines and one server (or a few); the server stores the data on its disks, and clients request data through well

  15. Operating System Concepts with Java 7th Edition, Nov 15, 2006 Silberschatz, Galvin and Gagne 2007 Chapter 11: File System Implementation

    E-print Network

    Bezrukov, Sergei

    #12;11.13 Silberschatz, Galvin and Gagne ©2007Operating System Concepts with Java ­ 7th Edition, NovOperating System Concepts with Java ­ 7th Edition, Nov 15, 2006 Silberschatz, Galvin and Gagne System Concepts with Java ­ 7th Edition, Nov 15, 2006 Chapter 11: File System Implementation File

  16. A convertor and user interface to import CAD files into worldtoolkit virtual reality systems

    NASA Technical Reports Server (NTRS)

    Wang, Peter Hor-Ching

    1996-01-01

    Virtual Reality (VR) is a rapidly developing human-to-computer interface technology. VR can be considered as a three-dimensional computer-generated Virtual World (VW) which can sense particular aspects of a user's behavior, allow the user to manipulate the objects interactively, and render the VW at real-time accordingly. The user is totally immersed in the virtual world and feel the sense of transforming into that VW. NASA/MSFC Computer Application Virtual Environments (CAVE) has been developing the space-related VR applications since 1990. The VR systems in CAVE lab are based on VPL RB2 system which consists of a VPL RB2 control tower, an LX eyephone, an Isotrak polhemus sensor, two Fastrak polhemus sensors, a folk of Bird sensor, and two VPL DG2 DataGloves. A dynamics animator called Body Electric from VPL is used as the control system to interface with all the input/output devices and to provide the network communications as well as VR programming environment. The RB2 Swivel 3D is used as the modelling program to construct the VW's. A severe limitation of the VPL VR system is the use of RB2 Swivel 3D, which restricts the files to a maximum of 1020 objects and doesn't have the advanced graphics texture mapping. The other limitation is that the VPL VR system is a turn-key system which does not provide the flexibility for user to add new sensors and C language interface. Recently, NASA/MSFC CAVE lab provides VR systems built on Sense8 WorldToolKit (WTK) which is a C library for creating VR development environments. WTK provides device drivers for most of the sensors and eyephones available on the VR market. WTK accepts several CAD file formats, such as Sense8 Neutral File Format, AutoCAD DXF and 3D Studio file format, Wave Front OBJ file format, VideoScape GEO file format, Intergraph EMS stereolithographics and CATIA Stereolithographics STL file formats. WTK functions are object-oriented in their naming convention, are grouped into classes, and provide easy C language interface. Using a CAD or modelling program to build a VW for WTK VR applications, we typically construct the stationary universe with all the geometric objects except the dynamic objects, and create each dynamic object in an individual file.

  17. HLLV avionics requirements study and electronic filing system database development

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This final report provides a summary of achievements and activities performed under Contract NAS8-39215. The contract's objective was to explore a new way of delivering, storing, accessing, and archiving study products and information and to define top level system requirements for Heavy Lift Launch Vehicle (HLLV) avionics that incorporate Vehicle Health Management (VHM). This report includes technical objectives, methods, assumptions, recommendations, sample data, and issues as specified by DPD No. 772, DR-3. The report is organized into two major subsections, one specific to each of the two tasks defined in the Statement of Work: the Index Database Task and the HLLV Avionics Requirements Task. The Index Database Task resulted in the selection and modification of a commercial database software tool to contain the data developed during the HLLV Avionics Requirements Task. All summary information is addressed within each task's section.

  18. The global unified parallel file system (GUPFS) project: FY 2003 activities and results

    SciTech Connect

    Butler, Gregory F.; Baird William P.; Lee, Rei C.; Tull, Craig E.; Welcome, Michael L.; Whitney Cary L.

    2004-04-30

    The Global Unified Parallel File System (GUPFS) project is a multiple-phase project at the National Energy Research Scientific Computing (NERSC) Center whose goal is to provide a scalable, high-performance, high-bandwidth, shared file system for all of the NERSC production computing and support systems. The primary purpose of the GUPFS project is to make the scientific users more productive as they conduct advanced scientific research at NERSC by simplifying the scientists' data management tasks and maximizing storage and data availability. This is to be accomplished through the use of a shared file system providing a unified file namespace, operating on consolidated shared storage that is accessible by all the NERSC production computing and support systems. In order to successfully deploy a scalable high-performance shared file system with consolidated disk storage, three major emerging technologies must be brought together: (1) shared/cluster file systems software, (2) cost-effective, high-performance storage area network (SAN) fabrics, and (3) high-performance storage devices. Although they are evolving rapidly, these emerging technologies individually are not targeted towards the needs of scientific high-performance computing (HPC). The GUPFS project is in the process of assessing these emerging technologies to determine the best combination of solutions for a center-wide shared file system, to encourage the development of these technologies in directions needed for HPC, particularly at NERSC, and to then put them into service. With the development of an evaluation methodology and benchmark suites, and with the updating of the GUPFS testbed system, the project did a substantial number of investigations and evaluations during FY 2003. The investigations and evaluations involved many vendors and products. From our evaluation of these products, we have found that most vendors and many of the products are more focused on the commercial market. Most vendors lack the understanding of, or do not have the resources to pay enough attention to, the needs of high-performance computing environments such as NERSC.

  19. Fracture strength of roots instrumented with three different single file systems in curved root canals

    PubMed Central

    Nur, Bilge Gulsum; Ok, Evren; Altunsoy, Mustafa; Tanriver, Mehmet; Capar, Ismail Davut

    2015-01-01

    Objective: The aim of this study was to compare the fracture strength of roots instrumented with three different single file rotary systems in curved mesial root canals of maxillary molars. Materials and Methods: Curvatures of 25°–35° on mesial roots of 60 maxillary molar teeth were sectioned below the cementoenamel junction to obtain roots 11 mm in length. The roots were balanced with respect to buccolingual and mesiodistal diameter and weight. They were distributed into three experimental groups and one control group (no instrumentation) (n = 15): Reciproc rotary file (R25, VDW, Munich, Germany), WaveOne Primary rotary file (Dentsply Tulsa Dental Specialties, Tulsa, UK) and OneShape (Micro-Mega, Besancon, France) rotary file. Vertical load was applied until fracture occurred. Data were statistically analyzed using one-way analysis of variance test (P < 0.05). Results: The mean fracture load was 412 ± 72 Newton (N) for the control group, 395 ± 69 N for the Reciproc group, 373 ± 63 N for the WaveOne group and 332 ± 68 N for the OneShape group. The fracture load differences among three experimental groups were not statistically significant (P > 0.05.) Whereas, the fracture loads of control and OneShape groups were significantly different (P = 0.012). Conclusions: Fracture resistance of the roots instrumented with WaveOne and Reciproc file systems were similar to the control group whereas it was observed that OneShape rotary file systems enhance the fracture strength of standardized curved roots when compared with the control group. PMID:26038648

  20. Electrochemical impedance spectroscopy investigation on the clinical lifetime of ProTaper rotary file system.

    PubMed

    Penta, Virgil; Pirvu, Cristian; Demetrescu, Ioana

    2014-01-01

    The main objective of the current paper is to show that electrochemical impedance spectroscopy (EIS) could be a method for evaluating and predicting of ProTaper rotary file system clinical lifespan. This particular aspect of everyday use of the endodontic files is of great importance in each dental practice and has profound clinical implications. The method used for quantification resides in the electrochemical impedance spectroscopy theory and has in its main focus the characteristics of the surface titanium oxide layer. This electrochemical technique has been adapted successfully to identify the quality of the Ni-Ti files oxide layer. The modification of this protective layer induces changes in corrosion behavior of the alloy modifying the impedance value of the file. In order to assess the method, 14 ProTaper sets utilized on different patients in a dental clinic have been submitted for testing using EIS. The information obtained in regard to the surface oxide layer has offered an indication of use and proves that the said layer evolves with each clinical application. The novelty of this research is related to an electrochemical technique successfully adapted for Ni-Ti file investigation and correlation with surface and clinical aspects. PMID:24605336

  1. Electrochemical Impedance Spectroscopy Investigation on the Clinical Lifetime of ProTaper Rotary File System

    PubMed Central

    Pirvu, Cristian; Demetrescu, Ioana

    2014-01-01

    The main objective of the current paper is to show that electrochemical impedance spectroscopy (EIS) could be a method for evaluating and predicting of ProTaper rotary file system clinical lifespan. This particular aspect of everyday use of the endodontic files is of great importance in each dental practice and has profound clinical implications. The method used for quantification resides in the electrochemical impedance spectroscopy theory and has in its main focus the characteristics of the surface titanium oxide layer. This electrochemical technique has been adapted successfully to identify the quality of the Ni-Ti files oxide layer. The modification of this protective layer induces changes in corrosion behavior of the alloy modifying the impedance value of the file. In order to assess the method, 14 ProTaper sets utilized on different patients in a dental clinic have been submitted for testing using EIS. The information obtained in regard to the surface oxide layer has offered an indication of use and proves that the said layer evolves with each clinical application. The novelty of this research is related to an electrochemical technique successfully adapted for Ni-Ti file investigation and correlation with surface and clinical aspects. PMID:24605336

  2. January 22, 2008 14:54 WSPC/INSTRUCTION FILE ZLJDKACS Advances in Complex Systems

    E-print Network

    Tesfatsion, Leigh

    January 22, 2008 14:54 WSPC/INSTRUCTION FILE ZLJDKACS Advances in Complex Systems c World at the micro-level. ZACH LEWKOVICZ Computer Science Laboratory (LIP6) Universit´e Pierre et Marie Curie - Paris 6 104 avenue du Pr´esident Kennedy, 75016 Paris, France zach.lewkovicz@lip6.fr JEAN-DANIEL KANT

  3. Eliciting Motivation Knowledge from Log Files towards Motivation Diagnosis for Adaptive Systems

    E-print Network

    Cocea, Mihaela

    Eliciting Motivation Knowledge from Log Files towards Motivation Diagnosis for Adaptive Systems, Dublin 1, Ireland {mcocea, sweibelzahl}@ncirl.ie Abstract. Motivation is well-known for its importance a user model of the learner's motivation, especially if integrated with information about knowledge

  4. Intelligent File Scoring System for Malware Detection from the Gray List

    E-print Network

    Li, Tao

    Intelligent File Scoring System for Malware Detection from the Gray List Yanfang Ye Dept, blocking invalid software from a black list, and running any unknown software (i.e., the gray list) in a controlled manner. The gray list, con- taining unknown software programs which could be either normal

  5. Free-Riding on BitTorrent-Like Peer-to-Peer File Sharing Systems: Modeling

    E-print Network

    Wu, Jie

    Free-Riding on BitTorrent-Like Peer-to-Peer File Sharing Systems: Modeling Analysis and Improvement contribution and prevent free-riding. However, BitTorrent's ability to prevent free-riding needs further study. In this paper, we present a fluid model with two different classes of peers to capture the effect of free

  6. Energy-Efficiency and Storage Flexibility in the Blue File System

    E-print Network

    Fu, Xiaoming

    Energy-Efficiency and Storage Flexibility in the Blue File System Salke HartungSalke Hartung storage, but don`t have energy-efficiency as a prior design goalg g PersonalRAID[4] can be used to keep devices: Adapt easily to performance and energy characteristics of all storage types (local, portable

  7. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Composition of, and access to, the Employee Medical File System. (a) All employee occupational medical records... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to an... occupational medical records to agency officials (both medical and non-medical) will be granted only when......

  8. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Composition of, and access to, the Employee Medical File System. (a) All employee occupational medical records... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to an... occupational medical records to agency officials (both medical and non-medical) will be granted only when......

  9. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Composition of, and access to, the Employee Medical File System. (a) All employee occupational medical records... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to an... occupational medical records to agency officials (both medical and non-medical) will be granted only when......

  10. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Composition of, and access to, the Employee Medical File System. (a) All employee occupational medical records... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to an... occupational medical records to agency officials (both medical and non-medical) will be granted only when......

  11. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Composition of, and access to, the Employee Medical File System. (a) All employee occupational medical records... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to an... occupational medical records to agency officials (both medical and non-medical) will be granted only when......

  12. The Panda Array I/O library on the Galley Parallel File System

    E-print Network

    1 The Panda Array I/O library on the Galley Parallel File System Joel T. Thomas Dartmouth Computer Joel.T.Thomas@dartmouth.edu June 5, 1996 Abstract The Panda Array I/O library, created some time, and the Panda project is an attempt to ameliorate this problem while still providing

  13. AGDEX: A System for Classifying, Indexing, and Filing Agricultural Publications. Revised Edition.

    ERIC Educational Resources Information Center

    Miller, Howard L.; Woodin, Ralph J.

    This document provides an introduction to and instructions for the use of AGDEX, a comprehensive numeric filing system to classify and organize a wide variety of agricultural publications. The index is subdivided and color coded according to the following categories: (1) field crops; (2) horticulture; (3) forestry; (4) animal science; (5) soils;…

  14. Operation Shipping for Mobile File Systems Yui-Wah Lee, Member, IEEE, Kwong-Sak Leung, Senior Member, IEEE, and

    E-print Network

    Satyanarayanan, Mahadev "Satya"

    Operation Shipping for Mobile File Systems Yui-Wah Lee, Member, IEEE, Kwong-Sak Leung, Senior to its servers. It proposes an efficient mechanism called operation shipping or operation-based update propagation. In the new mechanism, the client ships the user operation that updated the large files, rather

  15. Creating Interactive Graphical Overlays in the Advanced Weather Interactive Processing System Using Shapefiles and DGM Files

    NASA Technical Reports Server (NTRS)

    Barrett, Joe H., III; Lafosse, Richard; Hood, Doris; Hoeth, Brian

    2007-01-01

    Graphical overlays can be created in real-time in the Advanced Weather Interactive Processing System (AWIPS) using shapefiles or Denver AWIPS Risk Reduction and Requirements Evaluation (DARE) Graphics Metafile (DGM) files. This presentation describes how to create graphical overlays on-the-fly for AWIPS, by using two examples of AWIPS applications that were created by the Applied Meteorology Unit (AMU) located at Cape Canaveral Air Force Station (CCAFS), Florida. The first example is the Anvil Threat Corridor Forecast Tool, which produces a shapefile that depicts a graphical threat corridor of the forecast movement of thunderstorm anvil clouds, based on the observed or forecast upper-level winds. This tool is used by the Spaceflight Meteorology Group (SMG) at Johnson Space Center, Texas and 45th Weather Squadron (45 WS) at CCAFS to analyze the threat of natural or space vehicle-triggered lightning over a location. The second example is a launch and landing trajectory tool that produces a DGM file that plots the ground track of space vehicles during launch or landing. The trajectory tool can be used by SMG and the 45 WS forecasters to analyze weather radar imagery along a launch or landing trajectory. The presentation will list the advantages and disadvantages of both file types for creating interactive graphical overlays in future AWIPS applications. Shapefiles are a popular format used extensively in Geographical Information Systems. They are usually used in AWIPS to depict static map backgrounds. A shapefile stores the geometry and attribute information of spatial features in a dataset (ESRI 1998). Shapefiles can contain point, line, and polygon features. Each shapefile contains a main file, index file, and a dBASE table. The main file contains a record for each spatial feature, which describes the feature with a list of its vertices. The index file contains the offset of each record from the beginning of the main file. The dBASE table contains records for each attribute. Attributes are commonly used to label spatial features. Shapefiles can be viewed, but not created in AWIPS. As a result, either third-party software can be installed on an AWIPS workstation, or new software must be written to create shapefiles in the correct format.

  16. DSSTox EPA Integrated Risk Information System Structure-Index Locator File: SDF File and Documentation

    EPA Science Inventory

    EPA's Integrated Risk Information System (IRIS) database was developed and is maintained by EPA's Office of Research and Developement, National Center for Environmental Assessment. IRIS is a database of human health effects that may result from exposure to various substances fou...

  17. Request queues for interactive clients in a shared file system of a parallel computing system

    DOEpatents

    Bent, John M.; Faibish, Sorin

    2015-08-18

    Interactive requests are processed from users of log-in nodes. A metadata server node is provided for use in a file system shared by one or more interactive nodes and one or more batch nodes. The interactive nodes comprise interactive clients to execute interactive tasks and the batch nodes execute batch jobs for one or more batch clients. The metadata server node comprises a virtual machine monitor; an interactive client proxy to store metadata requests from the interactive clients in an interactive client queue; a batch client proxy to store metadata requests from the batch clients in a batch client queue; and a metadata server to store the metadata requests from the interactive client queue and the batch client queue in a metadata queue based on an allocation of resources by the virtual machine monitor. The metadata requests can be prioritized, for example, based on one or more of a predefined policy and predefined rules.

  18. Histological evaluation of the cleaning effectiveness of two reciprocating single-file systems in severely curved root canals: Reciproc versus WaveOne

    PubMed Central

    Carvalho, Maira de Souza; Junior, Emílio Carlos Sponchiado; Bitencourt Garrido, Angela Delfina; Roberti Garcia, Lucas da Fonseca; Franco Marques, André Augusto

    2015-01-01

    Objective: The aim of this study was to evaluate the cleaning effectiveness achieved with two reciprocating single-file systems in severely curved root canals: Reciproc and WaveOne. Materials and Methods: Twenty-five mesial roots of mandibular molars were randomly separated into two groups, according to the instrumentation system used. The negative control group consisted of five specimens that were not instrumented. The mesial canals (buccal and lingual) in Reciproc Group were instrumented with file R25 and the WaveOne group with the Primary file. The samples were submitted to histological processing and analyzed under a digital microscope. Results: The WaveOne group presented a larger amount of debris than the Reciproc Group, however, without statistically significant difference (P > 0.05). A larger amount of debris in the control group was observed, with statistically significant difference to Reciproc and WaveOne groups (P < 0.05). Conclusions: The two reciprocating single-file instrumentation systems presented similar effectiveness for root canal cleaning. PMID:25713489

  19. U.S. Department of Energy Best Practices Workshop onFile Systems & Archives San Francisco, CA September 26-27, 2011 Position Paper

    SciTech Connect

    Hedges, R M

    2011-09-01

    This position paper discusses issues of usability of the large parallel file systems in the Livermore Computing Center. The primary uses of these file systems are for storage and access of data that is created during the course of a simulation running on an LC system. The Livermore Computing Center has multiple, globally mounted parallel file systems in each of its computing environments. The single biggest issue of file system usability that we have encountered through the years is to maintain continuous file system responsiveness. Given the back end storage hardware that our file systems are provisioned with, it is easily possible for a particularly I/O intensive application or one with particularly inefficiently coded I/O operations to bring the file system to an apparent halt. The practice that we will be addressing is one of having an ability to indentify, diagnose, analyze and optimize the I/O quickly and effectively.

  20. Chemicals subject to reporting under the Emergency Planning and Community Right to Know Act (Title 3 of the Superfund Ammendments and Reauthorization Act of 1986), January 1988 (for microcomputers). Data file

    SciTech Connect

    Pratt, L.

    1988-01-01

    This is the disk-based version of the Office of Toxic Substances' consolidated list of chemicals subject to reporting under Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA). Title III is also known as the Emergency Planning and Community Right to Know Act. The document is a list of all chemicals subject to reporting under sections 302, 304, and 313 of Title III. The disk is designed to generate either a printout or a dbase III file from any IBM or IBM compatible system.

  1. HPC Global File System Performance Analysis Using A Scientific-Application Derived Benchmark

    SciTech Connect

    Borrill, Julian; Oliker, Leonid; Shalf, John; Shan, Hongzhang; Uselton, Andrew

    2008-08-28

    With the exponential growth of high-fidelity sensor and simulated data, the scientific community is increasingly reliant on ultrascale HPC resources to handle its data analysis requirements. However, to use such extreme computing power effectively, the I/O components must be designed in a balanced fashion, as any architectural bottleneck will quickly render the platform intolerably inefficient. To understand I/O performance of data-intensive applications in realistic computational settings, we develop a lightweight, portable benchmark called MADbench2, which is derived directly from a large-scale Cosmic Microwave Background (CMB) data analysis package. Our study represents one of the most comprehensive I/O analyses of modern parallel file systems, examining a broad range of system architectures and configurations, including Lustre on the Cray XT3, XT4, and Intel Itanium2 clusters; GPFS on IBM Power5 and AMD Opteron platforms; a BlueGene/P installation using GPFS and PVFS2 file systems; and CXFS on the SGI Altix\\-3700. We present extensive synchronous I/O performance data comparing a number of key parameters including concurrency, POSIX- versus MPI-IO, and unique-versus shared-file accesses, using both the default environment as well as highly-tuned I/O parameters. Finally, we explore the potential of asynchronous I/O and show that only the two of the nine evaluated systems benefited from MPI-2's asynchronous MPI-IO. On those systems, experimental results indicate that the computational intensity required to hide I/O effectively is already close to the practical limit of BLAS3 calculations. Overall, our study quantifies vast differences in performance and functionality of parallel file systems across state-of-the-art platforms -- showing I/O rates that vary up to 75x on the examined architectures -- while providing system designers and computational scientists a lightweight tool for conducting further analysis.

  2. Universality and nonuniversality of mobility in heterogeneous single-file systems and Rouse chains

    NASA Astrophysics Data System (ADS)

    Lomholt, Michael A.; Ambjörnsson, Tobias

    2014-03-01

    We study analytically the tracer particle mobility in single-file systems with distributed friction constants. Our system serves as a prototype for nonequilibrium, heterogeneous, strongly interacting Brownian systems. The long time dynamics for such a single-file setup belongs to the same universality class as the Rouse model with dissimilar beads. The friction constants are drawn from a density ? (?), and we derive an asymptotically exact solution for the mobility distribution P [?0(s)], where ?0(s) is the Laplace-space mobility. If ? is light tailed (first moment exists), we find a self-averaging behavior: P[?0(s )]=?[?0(s)-?(s)], with ?(s )?s1/2. When ?(?) is heavy tailed, ?(? )??-1-?(0?s?n, where ? =1/(1+?) and there is no self-averaging. The results are corroborated by simulations.

  3. A Framework for Space Systems Architecting under Stakeholder Objectives Ambiguity

    E-print Network

    de Weck, Olivier L.

    1 A Framework for Space Systems Architecting under Stakeholder Objectives Ambiguity by Ing;2 A Framework for Space Systems Architecting under Stakeholder Objectives Ambiguity by Alessandro Aliakbargolkar. This thesis develops a structured approach to develop recommendations to system architects concerned

  4. A File Allocation Strategy for Energy-Efficient Disk Storage Systems

    SciTech Connect

    Otoo, Ekow J; Otoo, Ekow J.; Rotem, Doron; Pinar, Ali; Tsao, Shi-Chiang

    2008-06-27

    Exponential data growth is a reality for most enterprise and scientific data centers.Improvements in price/performance and storage densities of disks have made it both easy and affordable to maintain most of the data in large disk storage farms. The provisioning of disk storage farms however, is at the expense of high energy consumption due to the large number of spinning disks. The power for spinning the disks and the associated cooling costs is a significant fraction of the total power consumption of a typical data center. Given the trend of rising global fuel and energy prices and the high rate of data growth, the challenge is to implement appropriateconfigurations of large scale disk storage systems that meet performancerequirements for information retrieval across data centers. We present part of the solution to this challenge with an energy efficient file allocation strategy on a large scale disk storage system. Given performance characteristics of thedisks, and a profile of the workload in terms of frequencies of file requests and their sizes, the basic idea is to allocate files to disks such that the disks can be configured into two sets of active (constantly spinning), and passive (capable of being spun up or down) disk pools. The goal is to minimize the number of active disks subject to I/O performance constraints. We present an algorithm for solving this problem with guaranteed bounds from the optimal solution. Our algorithm runs in O(n) time where n is the number of files allocated. It uses a mapping of our file allocation problem to a generalization of the bin packing problem known as 2-dimensional vector packing. Detailed simulation results are also provided.

  5. File under: A Web name: Academic Appeals within Divisions, Policy on [December 12, 2005] Official name: Policy on Academic Appeals Within Divisions [December 12, 2005] Location

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Academic Appeals within Divisions, Policy on [December 12, 2005] Official name: Policy on Academic Appeals Within Divisions [December 12, 2005] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/A/policy%20on%20academic%20appeals%20within%20divisions. docx [Official

  6. File under: A Web name: Academic Continuity, University of Toronto Policy on [January 26, 2012] Official name: Policy on Academic Continuity [January 26, 2012] Location

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Academic Continuity, University of Toronto Policy on [January 26, 2012] Official name: Policy on Academic Continuity [January 26, 2012] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/A/policy%20on%20academic%20continuity.docx [Official update: January 26

  7. File under: E Web name: Environment Protection Policy [April 26, 2010] Official name: University Environment Protection Policy [April 26, 2010] Location

    E-print Network

    Prodić, Aleksandar

    File under: E Web name: Environment Protection Policy [April 26, 2010] Official name: University Environment Protection Policy [April 26, 2010] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/E/policy%20on%20environmental%20protection.docx [Official update: April 26

  8. File under: C Web name Code of Behaviour on Academic Matters [August 18, 1995] Official name: Code of Behaviour on Academic Matters [August 18, 1995] Location

    E-print Network

    Toronto, University of

    File under: C Web name Code of Behaviour on Academic Matters [August 18, 1995] Official name: Code://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/C/code%20of%20behaviour%20on%20academic%20m atters.docx [Official update August 18, 1995][Last unofficial update: January 9, 2015] University of Toronto Governing Council Code

  9. File under: C Web name: Child Care Programs, Policy on [June 26, 2003] Official name: Policy on Child Care Programs [June 26, 2003] Location

    E-print Network

    Prodić, Aleksandar

    File under: C Web name: Child Care Programs, Policy on [June 26, 2003] Official name: Policy on Child Care Programs [June 26, 2003] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/C/policy%20on%20child%20care%20programs.docx [Official update June 26, 2003][Last

  10. File under: F Web name: Firearms, Statement on the Bearing of [March 31, 1994] Official name: Statement on the Bearing of Firearms [March 31, 1994] Location

    E-print Network

    Prodić, Aleksandar

    File under: F Web name: Firearms, Statement on the Bearing of [March 31, 1994] Official name: Statement on the Bearing of Firearms [March 31, 1994] Location: https Statement on the Bearing of Firearms March 31, 1994 To request an official copy of this policy, contact

  11. File under: D Web name Diploma and Certificate Programs, Policy on [December 2, 2003] Policy on Diploma and Certificate Programs [December 2, 2003] Location

    E-print Network

    Prodić, Aleksandar

    " and "certificate program" across the divisions of the University of Toronto, in order that their meaning be clear such certificate programs are currently offered at the University, as indicated in the attached listFile under: D Web name Diploma and Certificate Programs, Policy on [December 2, 2003] Policy

  12. 20 CFR 30.102 - In general, how does an employee file a claim for additional impairment or wage-loss under Part E...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special... covered illness or illnesses from the impairment rating that formed the basis for the last award of...

  13. Register file soft error recovery

    DOEpatents

    Fleischer, Bruce M.; Fox, Thomas W.; Wait, Charles D.; Muff, Adam J.; Watson, III, Alfred T.

    2013-10-15

    Register file soft error recovery including a system that includes a first register file and a second register file that mirrors the first register file. The system also includes an arithmetic pipeline for receiving data read from the first register file, and error detection circuitry to detect whether the data read from the first register file includes corrupted data. The system further includes error recovery circuitry to insert an error recovery instruction into the arithmetic pipeline in response to detecting the corrupted data. The inserted error recovery instruction replaces the corrupted data in the first register file with a copy of the data from the second register file.

  14. Thermodynamics of quantum systems under dynamical control

    E-print Network

    D. Gelbwaser-Klimovsky; Wolfgang Niedenzu; Gershon Kurizki

    2015-03-04

    In this review the debated rapport between thermodynamics and quantum mechanics is addressed in the framework of the theory of periodically-driven/controlled quantum-thermodynamic machines. The basic model studied here is that of a two-level system (TLS), whose energy is periodically modulated while the system is coupled to thermal baths. When the modulation interval is short compared to the bath memory time, the system-bath correlations are affected, thereby causing cooling or heating of the TLS, depending on the interval. In steady state, a periodically-modulated TLS coupled to two distinct baths constitutes the simplest quantum heat machine (QHM) that may operate as either an engine or a refrigerator, depending on the modulation rate. We find their efficiency and power-output bounds and the conditions for attaining these bounds. An extension of this model to multilevel systems shows that the QHM power output can be boosted by the multilevel degeneracy. These results are used to scrutinize basic thermodynamic principles: (i) Externally-driven/modulated QHMs may attain the Carnot efficiency bound, but when the driving is done by a quantum device ("piston"), the efficiency strongly depends on its initial quantum state. Such dependence has been unknown thus far. (ii) The refrigeration rate effected by QHMs does not vanish as the temperature approaches absolute zero for certain quantized baths, e.g., magnons, thous challenging Nernst's unattainability principle. (iii) System-bath correlations allow more work extraction under periodic control than that expected from the Szilard-Landauer principle, provided the period is in the non-Markovian domain. Thus, dynamically-controlled QHMs may benefit from hitherto unexploited thermodynamic resources.

  15. Reliability of dynamic systems under limited information.

    SciTech Connect

    Field, Richard V., Jr.; Grigoriu, Mircea

    2006-09-01

    A method is developed for reliability analysis of dynamic systems under limited information. The available information includes one or more samples of the system output; any known information on features of the output can be used if available. The method is based on the theory of non-Gaussian translation processes and is shown to be particularly suitable for problems of practical interest. For illustration, we apply the proposed method to a series of simple example problems and compare with results given by traditional statistical estimators in order to establish the accuracy of the method. It is demonstrated that the method delivers accurate results for the case of linear and nonlinear dynamic systems, and can be applied to analyze experimental data and/or mathematical model outputs. Two complex applications of direct interest to Sandia are also considered. First, we apply the proposed method to assess design reliability of a MEMS inertial switch. Second, we consider re-entry body (RB) component vibration response during normal re-entry, where the objective is to estimate the time-dependent probability of component failure. This last application is directly relevant to re-entry random vibration analysis at Sandia, and may provide insights on test-based and/or model-based qualification of weapon components for random vibration environments.

  16. 76 FR 9780 - Notification of Deletion of System of Records; EPA Parking Control Office File (EPA-10) and EPA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... EPA Parking Control Office File (EPA-10), published in the Federal Register on January 25, 1978 (43 FR... into the Office of Administrative Services Information System (OASIS) (EPA-41). DATES: This notice...

  17. [Radiological reporting system developed with FileMaker-Pro: cooperation with HIS, RIS, and PACS].

    PubMed

    Kawakami, Satoshi

    2004-03-01

    This article briefly describes our original radiological reporting system. This system was developed with the widely used database software FileMakerPro (ver 5.5). The reporting system can obtain information about patients and examinations from a radiology information system(RIS) by the Open DataBase Connectivity(ODBC) technique. By clicking the button on the reporting system, the corresponding DICOM images can be displayed on a picture archiving and communication system(PACS) workstation monitor. Reference images in JPEG format can be easily moved from PACS to the reporting system. Reports produced by the reporting system are distributed to the hospital information system(HIS) in Portable Document Format(PDF), through another web server. By utilizing the capacity of FileMakerPro, the human-machine interface of the system has been able to be improved easily. In addition, cooperation with HIS, RIS, and PACS could be constructed. Therefore, this original system would contribute to increasing the efficiency of radiological diagnosis. PMID:15148786

  18. Optimal file-bundle caching algorithms for data-grids

    SciTech Connect

    Otoo, Ekow; Rotem, Doron; Romosan, Alexandru

    2004-04-24

    The file-bundle caching problem arises frequently in scientific applications where jobs need to process several files simultaneously. Consider a host system in a data-grid that maintains a staging disk or disk cache for servicing jobs of file requests. In this environment, a job can only be serviced if all its file requests are present in the disk cache. Files must be admitted into the cache or replaced in sets of file-bundles, i.e. the set of files that must all be processed simultaneously. In this paper we show that traditional caching algorithms based on file popularity measures do not perform well in such caching environments since they are not sensitive to the inter-file dependencies and may hold in the cache non-relevant combinations of files. We present and analyze a new caching algorithm for maximizing the throughput of jobs and minimizing data replacement costs to such data-grid hosts. We tested the new algorithm using a disk cache simulation model under a wide range of conditions such as file request distributions, relative cache size, file size distribution, etc. In all these cases, the results show significant improvement as compared with traditional caching algorithms.

  19. Metadata Efficiency in a Comprehensive Versioning File System

    E-print Network

    Force Research Laboratory, under agreement number F49620-01-1-0433. The U.S. Government is authorized as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government. This work is also partially funded by the DARPA/ITO OASIS

  20. Metadata Efficiency in a Comprehensive Versioning File System

    E-print Network

    Force Research Laboratory, under agreement number F49620­01­1­0433. The U.S. Government is authorized as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government. This work is also partially funded by the DARPA/ITO OASIS

  1. Log-Less Metadata Management on Metadata Server for Parallel File Systems

    PubMed Central

    Xiao, Guoqiang; Peng, Xiaoning

    2014-01-01

    This paper presents a novel metadata management mechanism on the metadata server (MDS) for parallel and distributed file systems. In this technique, the client file system backs up the sent metadata requests, which have been handled by the metadata server, so that the MDS does not need to log metadata changes to nonvolatile storage for achieving highly available metadata service, as well as better performance improvement in metadata processing. As the client file system backs up certain sent metadata requests in its memory, the overhead for handling these backup requests is much smaller than that brought by the metadata server, while it adopts logging or journaling to yield highly available metadata service. The experimental results show that this newly proposed mechanism can significantly improve the speed of metadata processing and render a better I/O data throughput, in contrast to conventional metadata management schemes, that is, logging or journaling on MDS. Besides, a complete metadata recovery can be achieved by replaying the backup logs cached by all involved clients, when the metadata server has crashed or gone into nonoperational state exceptionally. PMID:24892093

  2. Log-less metadata management on metadata server for parallel file systems.

    PubMed

    Liao, Jianwei; Xiao, Guoqiang; Peng, Xiaoning

    2014-01-01

    This paper presents a novel metadata management mechanism on the metadata server (MDS) for parallel and distributed file systems. In this technique, the client file system backs up the sent metadata requests, which have been handled by the metadata server, so that the MDS does not need to log metadata changes to nonvolatile storage for achieving highly available metadata service, as well as better performance improvement in metadata processing. As the client file system backs up certain sent metadata requests in its memory, the overhead for handling these backup requests is much smaller than that brought by the metadata server, while it adopts logging or journaling to yield highly available metadata service. The experimental results show that this newly proposed mechanism can significantly improve the speed of metadata processing and render a better I/O data throughput, in contrast to conventional metadata management schemes, that is, logging or journaling on MDS. Besides, a complete metadata recovery can be achieved by replaying the backup logs cached by all involved clients, when the metadata server has crashed or gone into nonoperational state exceptionally. PMID:24892093

  3. Iris: A Scalable Cloud File System with Efficient Integrity Checks

    E-print Network

    International Association for Cryptologic Research (IACR)

    of control. Tenants give up configuration and management oversight of the infrastructure that contains--or when a system failure occurs. This integrity-measurement gap creates business risk and complicates system state to a previous version). Moreover, tenants in Iris can efficiently audit the cloud provider

  4. 76 FR 5799 - Prairie Power, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-02

    ... Energy Regulatory Commission Prairie Power, Inc.; Notice of Filing January 26, 2011. Take notice that on January 25, 2011, Prairie Power, Inc., submitted a proposed revenue requirement filing under Midwest... Transmission System Operator, Inc.\\2\\ \\1\\ Prairie Power is also listed by the Midwest ISO as a...

  5. 78 FR 35621 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-13

    ...Applicants: California Independent System Operator Corporation, AES Huntington Beach, L.L.C. Description: Amendments to RMR Agreement Under Docket ER13-1630 to be effective 6/26/2013. Filed Date: 6/5/13. Accession Number:...

  6. The ITC Distributed File System" Principles and Design

    E-print Network

    Satyanarayanan, Mahadev "Satya"

    consideration, and the mechanisms for it do not assume that the workstations or the network are secure. Caching gracefully and provide better performance is close to completion. 1. Introduction A campus-wide network system for a network of more than 5000 personal computer workstations. While scale has been the dominant

  7. Root Canal Shaping by Single-File Systems and Rotary Instruments: a Laboratory Study

    PubMed Central

    Bane, Khaly; Faye, Babacar; Sarr, Mouhamed; Niang, Seydina O; Ndiaye, Diouma; Machtou, Pierre

    2015-01-01

    Introduction: The aim of this study was to compare the shaping ability of two single-file systems and conventional rotary instruments in severely curved root canals of extracted human molars. Methods and Materials: Mesiobuccal canals of 120 mandibular molars with angles of curvature ranging between 25° and 35° and radii of curvature from 5 to 9 mm, were divided into three groups (n=40). In each group the canals were instrumented with either WaveOne (W), Reciproc (R) or ProTaper (P). The time required for canal shaping and the frequency of broken instruments were recorded. The standardized pre and post-instrumentation radiographs were taken to determine changes in working length (WL) and straightening of canal curvature. The presence of blockage or perforation was also evaluated. Data were analyzed using the one-way analysis of variance (ANOVA) and post-hoc Tukey’s test. The level of significance was set at 0.05. Results: Both single-instrument systems reduced the canal preparation time by approximately 50% (P<0.05). No incidence of broken instruments from single-file systems was reported; however, two F2 instruments in the P group were broken (P<0.05). Reduction in WL and straightening of canal curvature was observed in all three systems with the highest scores belonging to P system (P<0.05). No case of blockage or perforation was found during shaping in any group. Conclusion: Single-file systems shaped curved canals with substantial saving in time and a significant decrease in incidence of instrument separation, change in WL, and straightening of canal curvature. PMID:25834600

  8. 18 CFR 250.6 - Form of application to be filed by distributor under section 7(a), seeking gas service of not...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Form of application to... Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY APPROVED... distribution system project? If you have filed an application for such a certificate, with whom was it...

  9. 18 CFR 250.6 - Form of application to be filed by distributor under section 7(a), seeking gas service of not...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Form of application to... Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY APPROVED... distribution system project? If you have filed an application for such a certificate, with whom was it...

  10. 18 CFR 250.6 - Form of application to be filed by distributor under section 7(a), seeking gas service of not...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Form of application to... Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY APPROVED... distribution system project? If you have filed an application for such a certificate, with whom was it...

  11. 18 CFR 250.6 - Form of application to be filed by distributor under section 7(a), seeking gas service of not...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Form of application to... Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY APPROVED... distribution system project? If you have filed an application for such a certificate, with whom was it...

  12. Standard interface file handbook

    SciTech Connect

    Shapiro, A.; Huria, H.C. )

    1992-10-01

    This handbook documents many of the standard interface file formats that have been adopted by the US Department of Energy to facilitate communications between and portability of, various large reactor physics and radiation transport software packages. The emphasis is on those files needed for use of the VENTURE/PC diffusion-depletion code system. File structures, contents and some practical advice on use of the various files are provided.

  13. Formalizing structured file services for the data storage and retrieval subsystem of the data management system for Spacestation Freedom

    NASA Technical Reports Server (NTRS)

    Jamsek, Damir A.

    1993-01-01

    A brief example of the use of formal methods techniques in the specification of a software system is presented. The report is part of a larger effort targeted at defining a formal methods pilot project for NASA. One possible application domain that may be used to demonstrate the effective use of formal methods techniques within the NASA environment is presented. It is not intended to provide a tutorial on either formal methods techniques or the application being addressed. It should, however, provide an indication that the application being considered is suitable for a formal methods by showing how such a task may be started. The particular system being addressed is the Structured File Services (SFS), which is a part of the Data Storage and Retrieval Subsystem (DSAR), which in turn is part of the Data Management System (DMS) onboard Spacestation Freedom. This is a software system that is currently under development for NASA. An informal mathematical development is presented. Section 3 contains the same development using Penelope (23), an Ada specification and verification system. The complete text of the English version Software Requirements Specification (SRS) is reproduced in Appendix A.

  14. COOPERATIVE GAMES UNDER AUGMENTING SYSTEMS JESUS MARIO BILBAO

    E-print Network

    Bilbao Arrese, Jesús Mario

    COOPERATIVE GAMES UNDER AUGMENTING SYSTEMS JES´US MARIO BILBAO SIAM J. DISCRETE MATH. c 2003 for games under augmenting systems restrictions. Key words. cooperative game, Shapley value, Banzhaf value. Cooperative games under combinatorial restrictions are coop- erative games in which the players have

  15. Securing the AliEn File Catalogue - Enforcing authorization with accountable file operations

    NASA Astrophysics Data System (ADS)

    Schreiner, Steffen; Bagnasco, Stefano; Sankar Banerjee, Subho; Betev, Latchezar; Carminati, Federico; Vladimirovna Datskova, Olga; Furano, Fabrizio; Grigoras, Alina; Grigoras, Costin; Mendez Lorenzo, Patricia; Peters, Andreas Joachim; Saiz, Pablo; Zhu, Jianlin

    2011-12-01

    The AliEn Grid Services, as operated by the ALICE Collaboration in its global physics analysis grid framework, is based on a central File Catalogue together with a distributed set of storage systems and the possibility to register links to external data resources. This paper describes several identified vulnerabilities in the AliEn File Catalogue access protocol regarding fraud and unauthorized file alteration and presents a more secure and revised design: a new mechanism, called LFN Booking Table, is introduced in order to keep track of access authorization in the transient state of files entering or leaving the File Catalogue. Due to a simplification of the original Access Envelope mechanism for xrootd-protocol-based storage systems, fundamental computational improvements of the mechanism were achieved as well as an up to 50% reduction of the credential's size. By extending the access protocol with signed status messages from the underlying storage system, the File Catalogue receives trusted information about a file's size and checksum and the protocol is no longer dependent on client trust. Altogether, the revised design complies with atomic and consistent transactions and allows for accountable, authentic, and traceable file operations. This paper describes these changes as part and beyond the development of AliEn version 2.19.

  16. On Measures of Cooperation in Distributed Systems under Uncertainties

    E-print Network

    Krokhmal, Paul

    by a number of stochastic factors, it is considered that cooperation within the system may increaseOn Measures of Cooperation in Distributed Systems under Uncertainties Pavlo A. Krokhmal 1 David E the evolution of distributed multi-agent systems under uncertainty where the autonomous agents may cooperate

  17. Consolidated list of chemicals subject to reporting under the Emergency Planning and Community Right-To-Know Act: SARA (Superfund Amendments and Reauthorization Act of 1986) Section 302 Extremely Hazardous Substances, CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act) Hazardous Substances and SARA Section 313 Toxic Chemicals (Title III. List of Lists) (for microcomputers). Data file

    SciTech Connect

    Sykes, H.

    1990-01-01

    The data file is the disk-based version of the Office of Toxic Substances' consolidated list of chemicals subject to reporting under Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA) and SARA Section 302 Extremely Hazardous Substances, as well as CERCLA Hazardous Substances. Title III is also known as the Emergency Planning and Community Right to Know Act. The disks are designed to generate either a printout or a dBase III file from any IBM or IBM compatible system.

  18. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... of proposed suspension or rescission under 30 CFR 773.22 or a notice of suspension or rescission under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings and... 43 Public Lands: Interior 1 2012-10-01 2011-10-01 true Who may file, where to file, when to...

  19. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... of proposed suspension or rescission under 30 CFR 773.22 or a notice of suspension or rescission under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings and... 43 Public Lands: Interior 1 2014-10-01 2014-10-01 false Who may file, where to file, when to...

  20. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... of proposed suspension or rescission under 30 CFR 773.22 or a notice of suspension or rescission under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings and... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file, where to file, when to...

  1. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... of proposed suspension or rescission under 30 CFR 773.22 or a notice of suspension or rescission under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings and... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false Who may file, where to file, when to...

  2. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... of proposed suspension or rescission under 30 CFR 773.22 or a notice of suspension or rescission under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings and... 43 Public Lands: Interior 1 2013-10-01 2013-10-01 false Who may file, where to file, when to...

  3. Ecological and genetic systems underlying sustainable horticulture

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Agriculture in the 21st century will face unprecedented challenges due to rising energy costs, global climate change, and increasingly scarce production resources. It will become imperative for producers to adopt sustainable systems that rely on natural system processes and use inputs as efficientl...

  4. 75 FR 20007 - The Merit Systems Protection Board (MSPB) Is Providing Notice of the Opportunity To File Amicus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-16

    ...SYSTEMS PROTECTION BOARD The Merit Systems Protection Board (MSPB) Is Providing Notice of the Opportunity To File Amicus Briefs in the...C. Chapter 75, given that the scope of a Chapter 75 appeal is broader than a part 731 appeal and that OPM generally lacks...

  5. 75 FR 6728 - The Merit Systems Protection Board (MSPB) is Providing Notice of the Opportunity to File Amicus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-10

    ...SYSTEMS PROTECTION BOARD The Merit Systems Protection Board (MSPB) is Providing Notice of the Opportunity to File Amicus Briefs in the...DC-0752-09-0033-R-1, 2009 MSPB 233. Although the Crumpler case is now settled, the legal issue raised in that matter and...

  6. File under Fleeting

    ERIC Educational Resources Information Center

    Torgovnick, Marianna

    2008-01-01

    Archives have always had an aura of neutrality and coolness that masks the heat behind the data they record: births, marriages, crimes, wars, business dealings, genocides and deaths. Long thought of as the musty haunts of scholars with a specialized interest in the demographics of Rome or 15th-century France, archives have been seen as controlled…

  7. A File System Design for the Aeolus Security Platform Francis Peter McKee

    E-print Network

    Liskov, Barbara

    games, food, and adventures. Without all of their distractions, the last four years would have been wayFile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.1.1 AeolusFile(String path, String host) . . . . . . . . . . . . . . . 24 4.1.2 boolean createNewFile(Label secrecy, Label integrity) . . . . . 24 4.1.3 boolean mkDir(Label secrecy, Label integrity

  8. Job Scheduling Under the Portable Batch System

    NASA Technical Reports Server (NTRS)

    Henderson, Robert L.; Woodrow, Thomas S. (Technical Monitor)

    1995-01-01

    The typical batch queuing system schedules jobs for execution by a set of queue controls. The controls determine from which queues jobs may be selected. Within the queue, jobs are ordered first-in, first-run. This limits the set of scheduling policies available to a site. The Portable Batch System removes this limitation by providing an external scheduling module. This separate program has full knowledge of the available queued jobs, running jobs, and system resource usage. Sites are able to implement any policy expressible in one of several procedural language. Policies may range from "bet fit" to "fair share" to purely political. Scheduling decisions can be made over the full set of jobs regardless of queue or order. The scheduling policy can be changed to fit a wide variety of computing environments and scheduling goals. This is demonstrated by the use of PBS on an IBM SP-2 system at NASA Ames.

  9. System architecture analysis and selection under uncertainty

    E-print Network

    Smaling, Rudolf M

    2005-01-01

    A system architecture analysis and selection methodology is presented that builds on the Multidisciplinary Analysis and Optimization framework. It addresses a need and opportunity to extend the MAO techniques to include a ...

  10. Hare: a file system for non-cache-coherent multicores Charles Gruenwald III, Filippo Sironi, M. Frans Kaashoek, and Nickolai Zeldovich

    E-print Network

    Hare: a file system for non-cache-coherent multicores Charles Gruenwald III, Filippo Sironi, M. Frans Kaashoek, and Nickolai Zeldovich MIT CSAIL ABSTRACT Hare is a new file system that provides a POSIX-like inter- face on multicore processors without cache coherence. Hare allows applications

  11. Modeling Water Resource Systems under Climate Change: IGSM-WRS

    E-print Network

    Modeling Water Resource Systems under Climate Change: IGSM-WRS Kenneth Strzepek, Adam Schlosser://globalchange.mit.edu/ Printed on recycled paper #12;1 Modeling Water Resource Systems under Climate Change: IGSM-WRS Kenneth of water adequacy and ways it is influenced by climate change. Here we document the design of WRS and its

  12. 48 CFR 4.802 - Contract files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 1 2013-10-01 2013-10-01 false Contract files. 4.802... MATTERS Government Contract Files 4.802 Contract files. (a) A contract file should generally consist of— (1) The contracting office contract file, that documents the basis for the acquisition and the...

  13. 48 CFR 4.802 - Contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Contract files. 4.802... MATTERS Government Contract Files 4.802 Contract files. (a) A contract file should generally consist of— (1) The contracting office contract file, that documents the basis for the acquisition and the...

  14. 48 CFR 4.802 - Contract files.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 1 2014-10-01 2014-10-01 false Contract files. 4.802... MATTERS Government Contract Files 4.802 Contract files. (a) A contract file should generally consist of— (1) The contracting office contract file, that documents the basis for the acquisition and the...

  15. 48 CFR 4.802 - Contract files.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 1 2012-10-01 2012-10-01 false Contract files. 4.802... MATTERS Government Contract Files 4.802 Contract files. (a) A contract file should generally consist of— (1) The contracting office contract file, that documents the basis for the acquisition and the...

  16. 48 CFR 4.802 - Contract files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 1 2011-10-01 2011-10-01 false Contract files. 4.802... MATTERS Government Contract Files 4.802 Contract files. (a) A contract file should generally consist of— (1) The contracting office contract file, that documents the basis for the acquisition and the...

  17. Directionally solidified composite systems under evaluation

    NASA Technical Reports Server (NTRS)

    Ashbrook, R. L.

    1974-01-01

    The directionally solidified eutectic in-situ composites being evaluated for use as turbine materials range from ductile-ductile systems, where both matrix and reinforcement are ductile, to brittle-brittle systems, where both phases are brittle. The alloys most likely to be used in gas turbine engines in the near term are the lamellar ductile-semi ductile alloys gamma prime-delta, Ni3Al-Ni3Nb and gamma/gamma prime-delta Ni,Cr,Cb,Al/Ni3Al-Ni3Nb and the fibrous ductile-brittle alloys M-MC CoTaC or NiTaC and M-M7C3(Co,Cr,Al)-(Cr,Co)7C3. The results of tests are given which indicate that gamma prime strengthened NiTaC alloys and a (Co,Cr,Al)7C3 have greater tensile strength than the strongest superalloys at temperatures up to about 600 C. The gamma prime-delta and gamma/gamma prime-delta alloys in the Ni,Al,Nb(Cr) systems have greater tensile strength than the superalloys at temperatures greater than 800 C. At low stresses fibrous carbide reinforced eutectic alloys have longer lives at high temperatures than the strongest superalloys. Lamellar delta, Ni3Nb reinforced eutectic alloys have longer lives at high temperatures than the strongest superalloys at all stresses. The experience currently being gained in designing with the brittle ceramics SiC and Si3N4 may eventually be applied to ceramic matrix eutectic in-situ composites. However, the refractory metal fiber reinforced brittle-ductile systems may find acceptance as turbine materials before the ceramic-ceramic brittle-brittle systems.

  18. E-Government and Citizen Adoption of Innovations: Factors Underlying Citizen Use of the Internet for State Tax Filing

    ERIC Educational Resources Information Center

    Boone, Michael A.

    2012-01-01

    Electronic government has been embraced by many organizations seeking to dramatically improve service delivery, but results to date have often fallen short of expectations. This dissertation is focused on state revenue agencies and their electronic tax filing mechanisms for state individual income taxes. It asks: What factors best explain whether…

  19. 78 FR 54879 - Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-06

    ... amended, and DOE regulations in 10 CFR 501.60, 61. FUA and regulations thereunder require DOE to publish a notice of filing of self-certification in the Federal Register. 42 U.S.C. 8311(d) and 10 CFR 501.61(c... in 10 CFR 501.60, 61: Owner: Garrison Energy Center, LLC. Capacity: 309 megawatts (MW)....

  20. 76 FR 63672 - Notice of Acceptance of Application for Special Nuclear Materials License From Passport Systems...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-13

    ... under 10 CFR 2.315(c), must be filed in accordance with the NRC E-Filing rule (72 FR 49139, August 28...\\ Requesters should note that the filing requirements of the NRC's E-Filing Rule (72 FR 49139; August 28, 2007... Notice of Acceptance of Application for Special Nuclear Materials License From Passport Systems,...

  1. Two Systems of Spatial Representation Underlying Navigation

    PubMed Central

    Lee, Sang Ah; Spelke, Elizabeth S.

    2011-01-01

    We review evidence for two distinct cognitive processes by which humans and animals represent the navigable environment. One process uses the shape of the extended 3D surface layout to specify the navigator’s position and orientation. A second process uses objects and patterns as beacons to specify the locations of significant objects. Although much of the evidence for these processes comes from neurophysiological studies of navigating animals and neuroimaging studies of human adults, behavioral studies of navigating children shed light both on the nature of these systems and on their interactions. PMID:20614214

  2. Evaluation of Apical Extrusion of Debris and Irrigant Using Two New Reciprocating and One Continuous Rotation Single File Systems

    PubMed Central

    Nayak, Gurudutt; Singh, Inderpreet; Shetty, Shashit; Dahiya, Surya

    2014-01-01

    Objective: Apical extrusion of debris and irrigants during cleaning and shaping of the root canal is one of the main causes of periapical inflammation and postoperative flare-ups. The purpose of this study was to quantitatively measure the amount of debris and irrigants extruded apically in single rooted canals using two reciprocating and one rotary single file nickel-titanium instrumentation systems. Materials and Methods: Sixty human mandibular premolars, randomly assigned to three groups (n = 20) were instrumented using two reciprocating (Reciproc and Wave One) and one rotary (One Shape) single-file nickel-titanium systems. Bidistilled water was used as irrigant with traditional needle irrigation delivery system. Eppendorf tubes were used as test apparatus for collection of debris and irrigant. The volume of extruded irrigant was collected and quantified via 0.1-mL increment measure supplied on the disposable plastic insulin syringe. The liquid inside the tubes was dried and the mean weight of debris was assessed using an electronic microbalance. The data were statistically analysed using Kruskal-Wallis nonparametric test and Mann Whitney U test with Bonferroni adjustment. P-values less than 0.05 were considered significant. Results: The Reciproc file system produced significantly more debris compared with OneShape file system (P<0.05), but no statistically significant difference was obtained between the two reciprocating instruments (P>0.05). Extrusion of irrigant was statistically insignificant irrespective of the instrument or instrumentation technique used (P >0.05). Conclusions: Although all systems caused apical extrusion of debris and irrigant, continuous rotary instrumentation was associated with less extrusion as compared with the use of reciprocating file systems. PMID:25628665

  3. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 4 2012-01-01 2012-01-01 false Filing documents with the Docket Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT...

  4. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false Filing documents with the Docket Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT...

  5. 77 FR 62226 - Privacy Act of 1974; System of Records-Principal Investigator/Application File and Associated...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... AGENCY: Institute of Education Sciences, Department of Education. ACTION: Notice of a new system of... Sciences Principal Investigator/Application File and Associated Records'' (18-13-26). The Office of the Deputy Director for Science at the Department's Institute of Education Sciences (Institute)...

  6. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false Filing documents with the Docket Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT...

  7. The Ammonia?Hydrogen System under Pressure

    SciTech Connect

    Chidester, Bethany A.; Strobel, Timothy A.

    2012-01-20

    Binary mixtures of hydrogen and ammonia were compressed in diamond anvil cells to 15 GPa at room temperature over a range of compositions. The phase behavior was characterized using optical microscopy, Raman spectroscopy, and synchrotron X-ray diffraction. Below 1.2 GPa we observed two-phase coexistence between liquid ammonia and fluid hydrogen phases with limited solubility of hydrogen within the ammonia-rich phase. Complete immiscibility was observed subsequent to the freezing of ammonia phase III at 1.2 GPa, although hydrogen may become metastably trapped within the disordered face-centered-cubic lattice upon rapid solidification. For all compositions studied, the phase III to phase IV transition of ammonia occurred at {approx}3.8 GPa and hydrogen solidified at {approx}5.5 GPa, transition pressures equivalent to those observed for the pure components. A P-x phase diagram for the NH{sub 3}-H{sub 2} system is proposed on the basis of these observations with implications for planetary ices, molecular compound formation, and possible hydrogen storage materials.

  8. Evaluation of Single File Systems Reciproc, Oneshape, and WaveOne using Cone Beam Computed Tomography –An In Vitro Study

    PubMed Central

    Dhingra, Annil; Miglani, Anjali

    2015-01-01

    Background Successful endodontic therapy depends on many factor, one of the most important step in any root canal treatment is root canal preparation. In addition, respecting the original shape of the canal is of the same importance; otherwise, canal aberrations such as transportation will be created. Aim The purpose of this study is to compare and evaluate Reciprocating WaveOne ,Reciproc and Rotary Oneshape Single File Instrumentation System On Cervical Dentin Thickness, Cross Sectional Area and Canal Transportation on First Mandibular Molar Using Cone Beam Computed Tomography. Materials and Methods Sixty Mandibular First Molars extracted due to periodontal reason was collected from the Department of Oral and Maxillofacial. Teeth were prepared using one rotary and two reciprocating single file system. Teeth were divided into 3 groups 20 teeth in each group. Pre instrumentation and Post instrumentation scans was done and evaluated for three parameters Canal Transportation, Cervical Dentinal Thickness, Cross-sectional Area. Results were analysed statistically using ANOVA, Post-Hoc Tukey analysis. Results The change in cross-sectional area after filing showed significant difference at 0mm, 1mm, 2mm and 7mm (p<0.001, p =0.006, 0.004 & <0.001 respectively). There was significant difference between wave one and oneshape; oneshape and reciproc at 0mm, 1mm, 2mm & 7mm (p-values for waveone and Oneshape <0.001, 0.022, 0.011 & <0.001 resp. and for oneshape and reciproc < 0.001, p= 0.011, p=0.008 & <0.001). On assessing the transportation of the three file system over a distance of 7 mm (starting from 0mm and then evaluation at 1mm, 2mm, 3mm, 5mm and 7mm), the results showed a significant difference among the file systems at various lengths (p= 0.014, 0.046, 0.004, 0.028, 0.005 & 0.029 respectively). Mean value of cervical dentinal removal is maximum at all the levels for oneshape and minimum for waveone showing the better quality of waveone and reciproc over oneshape file system. Significant difference was found at 9mm, 11mm and 12mm between all the three file systems (p<0.001,< 0.001, <0.001). Conclusion It was concluded that reciprocating motion is better than rotary motion in all the three parameters Canal Transportation, Cross-sectional Area, Cervical Dentinal Thickness. PMID:26023639

  9. Aerothermodynamics and operation of turbine system under unsteady pulsating flow

    E-print Network

    Lee, Jinwook, S.M. Massachusetts Institute of Technology

    2015-01-01

    An assessment of a turbine system operating under highly pulsating flow environment typically found in vehicular turbochargers is made to: identify the key operating parameters, enable the formulation of a reduced order ...

  10. Consolidated List of chemicals Subject to Reporting Under the Emergency Planning and Community Right to Know Act: SARA Section 302 Extremely Hazardous Substances, CERCLA Hazardous Substances and SARA Section 313 Toxic Chemicals (Title III, list of lists), EZ-Base (trade name) version (for microcomputers). Data file

    SciTech Connect

    Not Available

    1992-05-01

    This is the diskette based version of the Office of Toxic Substances Consolidated List of Chemicals Subject to Reporting Under Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA) and SARA Section 302 Extremely Hazardous Substances, as well as CERCLA Hazardous Substances. Title III is also known as the Emergency Planning and Community Right to Know Act. The diskette is designed to generate either a printout or a dBase III file from any IBM or IBM compatible system.

  11. Interactive Radiology teaching file system: the development of a MIRC-compliant and user-centered e-learning resource.

    PubMed

    dos-Santos, M; Fujino, A

    2012-01-01

    Radiology teaching usually employs a systematic and comprehensive set of medical images and related information. Databases with representative radiological images and documents are highly desirable and widely used in Radiology teaching programs. Currently, computer-based teaching file systems are widely used in Medicine and Radiology teaching as an educational resource. This work addresses a user-centered radiology electronic teaching file system as an instance of MIRC compliant medical image database. Such as a digital library, the clinical cases are available to access by using a web browser. The system has offered great opportunities to some Radiology residents interact with experts. This has been done by applying user-centered techniques and creating usage context-based tools in order to make available an interactive system. PMID:23367264

  12. A Web based Covert File System Arati Baliga, Joe Kilian and Liviu Iftode

    E-print Network

    Iftode, Liviu

    with other users. CovertFS can be built on top of any web based media sharing service. The files are hidden- bility as well. Since the user files are completely hidden, it gives only the user complete control over, blogs, wikis and other collaborative and interactive services have become a part of our daily lives

  13. 48 CFR 1404.802 - Contract files.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Contract files. 1404.802 Section 1404.802 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.802 Contract files. In addition to the requirements in FAR 4.802, files...

  14. 48 CFR 1404.802 - Contract files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Contract files. 1404.802 Section 1404.802 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.802 Contract files. In addition to the requirements in FAR 4.802, files...

  15. 48 CFR 1404.802 - Contract files.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Contract files. 1404.802 Section 1404.802 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.802 Contract files. In addition to the requirements in FAR 4.802, files...

  16. 48 CFR 1404.802 - Contract files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Contract files. 1404.802 Section 1404.802 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.802 Contract files. In addition to the requirements in FAR 4.802, files...

  17. 48 CFR 1404.802 - Contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Contract files. 1404.802 Section 1404.802 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.802 Contract files. In addition to the requirements in FAR 4.802, files...

  18. Optimal Control of Switched Dynamical Systems under Dwell Time Constraints

    E-print Network

    Egerstedt, Magnus

    Optimal Control of Switched Dynamical Systems under Dwell Time Constraints Usman Ali1 and Magnus constraint has not received attention in research on optimal control of switched systems. In this paper, we consider the common optimal control problem of minimizing a cost functional defined on the state trajectory

  19. SU-E-T-576: Evaluation of Patient Specific VMAT QA Using Dynalog Files and Treatment Planning System

    SciTech Connect

    Defoor, D; Stathakis, S; Mavroidis, P; Papanikolaou, N

    2014-06-01

    Purpose: This research investigates the use of Mult-ileaf Collimator (MLC) dynalog files to modify a Volumetric Arc Therapy (VMAT) DICOM Radiotherapy Treatment file from the Treatment Planning System (TPS) for quality assurance and treatment plan verification. Methods: Actual MLC positions and gantry angles where retrieved from the MLC Dynalog files of an approved and treated VMAT plan. The treatment machine used was a Novalis TX linac equipped with high definition MLC. The DICOM RT file of the plan was exported from the TPS (Eclipse, Varian Medical Systems) and the actual MLC leaf positions and gantry angles were inserted in place of the planned positions for each control point. The modified DICOM RT file was then imported back into the TPS where dose calculations were performed. The resulting dose distributions were then exported to VeriSoft (PTW) where a 3D gamma was calculated using 3mm-3% and 2mm-2% criteria. A 2D gamma was also calculated using dose measurements on the Delta4 (Sandidose) phantom. Results: A 3D gamma was calculated in Verisoft at 3mm-3% of 99.5% and at 2mm-2% of 99.2%. The pretreatment verification on the Delta4 yielded a 2D gamma at 3mm-3% of 97.9% and at 2mm-2% of 88.5%. The dose volume histograms of the approved plan and the dynalog plan are virtually identical. Conclusion: Initial results show good agreement of the dynalog dose distribution with the approved plan. Future work on this research will aim to increase the number of patients and replace the planned fractionated dose per control point with the actual fractionated dose.

  20. Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals

    PubMed Central

    Altunbas, Demet; Kutuk, Betul; Kustarci, Alper

    2015-01-01

    Objective: The purpose of this study was to evaluate the shaping ability of three nickel-titanium systems in simulated curved canals. Materials and Methods: Sixty simulated canals were prepared to apical size 25 with Reciproc, S5, and twisted file (TF) instruments. Standardized pre and postoperative images were taken using a digital camera, were superimposed and aberrations were recorded. Material removal was measured at five points: The canal orifice, halfway to the orifice, beginning of the curve, the apex of the curve, and end-point. The data were analyzed using Kolmogorov–Smirnov, analysis of variance, and Tukey tests. Results: The mean total width of the prepared canals in the Reciproc group was greater than the TF and S5 groups at halfway to the orifice, the beginning of the curve, the apex of the curve, and the end-point (P < 0.05). Mean absolute transportation was always <0.16 mm; however, significant differences occurred between the three systems at the orifice, halfway to the orifice, and the beginning of the curve (P < 0.05). TF created minimal absolute transportation at halfway to the orifice and the beginning of the curve, and greater absolute transportation at the orifice compared with the Reciproc and S5 instruments. However, the difference between the S5 and TF groups was not statistically significant at halfway to the orifice (P > 0.05). Conclusions: Under the conditions of the study, Reciproc produced widest canal shapes. TF provided more centered apical preparation and maintained the original canal shape well. PMID:26430361

  1. 77 FR 62226 - Privacy Act of 1974; System of Records-Principal Investigator/Application File and Associated...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ...Principal Investigator/ Application File and Associated Records AGENCY: Institute...Sciences Principal Investigator/Application File and Associated Records'' (18-13-26...notice will cover a database and paper files containing personally identifying...

  2. 76 FR 9780 - Notification of Deletion of System of Records; EPA Parking Control Office File (EPA-10) and EPA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ...of Records; EPA Parking Control Office File (EPA-10) and EPA Transit and Guaranteed Ride Home Program Files (EPA-35) AGENCY: Environmental Protection...records for EPA Parking Control Office File (EPA-10), published in the...

  3. July 24, 2012 12:52 WSPC/INSTRUCTION FILE kntuacs12 Advances in Complex Systems

    E-print Network

    Tumer, Kagan

    University matt.knudson@sv.cmu.edu KAGAN TUMER Oregon State University kagan.tumer@oregonstate.edu Received:52 WSPC/INSTRUCTION FILE kntuacs12 2 M. Knudson and K. Tumer improves the process (for example, terrain

  4. Entropy squeezing for qubit – field system under decoherence effect

    SciTech Connect

    Abdel-Khalek, S; Berrada, K; A-S F Obada; Wahiddin, M R

    2014-03-28

    We study in detail the dynamics of field entropy squeezing (FES) for a qubit – field system whose dynamics is described by the phase-damped model. The results of calculations show that the initial state and decoherence play a crucial role in the evolution of FES. During the temporal evolution of the system under decoherence effect, an interesting monotonic relation between FES, Wehrl entropy (WE) and negativity is observed. (laser applications and other topics in quantum electronics)

  5. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Contract files. 204.802... OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official contract files shall consist of— (1) Only original, authenticated or conformed copies of contractual...

  6. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 3 2011-10-01 2011-10-01 false Contract files. 204.802... OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official contract files shall consist of— (1) Only original, authenticated or conformed copies of contractual...

  7. 47 CFR 1.1704 - Station files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 1 2011-10-01 2011-10-01 false Station files. 1.1704 Section 1.1704... System (COALS) § 1.1704 Station files. Applications, notifications, correspondence, electronic filings.... These files constitute the official records for these stations and supersede any other records,...

  8. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Contract files. 204.802... OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official contract files shall consist of— (1) Only original, authenticated or conformed copies of contractual...

  9. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 3 2012-10-01 2012-10-01 false Contract files. 204.802... OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official contract files shall consist of— (1) Only original, authenticated or conformed copies of contractual...

  10. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 3 2013-10-01 2013-10-01 false Contract files. 204.802... OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official contract files shall consist of— (1) Only original, authenticated or conformed copies of contractual...

  11. 47 CFR 1.1704 - Station files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Station files. 1.1704 Section 1.1704... System (COALS) § 1.1704 Station files. Applications, notifications, correspondence, electronic filings.... These files constitute the official records for these stations and supersede any other records,...

  12. Experimental characterization of hybrid power systems under pulse current loads

    E-print Network

    Weidner, John W.

    Experimental characterization of hybrid power systems under pulse current loads C.E. Hollanda , J of these devices were characterized with respect to their ability to meet the power demands of pulsed loads. Data Elsevier Science B.V. All rights reserved. Keywords: Hybrid power sources; Current pulsing; Battery

  13. "Women under the Influence": The System as the Cause.

    ERIC Educational Resources Information Center

    Moller, Lorraine

    2001-01-01

    Suggests "Woman Under the Influence" is an excellent film for teaching key concepts in family communication. Explains systems theory as it applies to transactions within the family. Extends the theory to the analysis of the spousal relationship in the film from the perspective of interactional communication, dramatically illustrating the…

  14. 11. An abandoned electrical system was found under the pressedsteel ...

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

    11. An abandoned electrical system was found under the pressed-steel ceiling. For some undetermined reason the pattern of the ceiling panels has 'photographed' onto the cardboard substrate. Two different panel designs were utilized in a checkerboard pattern. One panel of each design remains in place. Credit GADA/MRM. - Stroud Building, 31-33 North Central Avenue, Phoenix, Maricopa County, AZ

  15. TEMPORAL DECOMPOSITION OF SIMULATIONS UNDER THE TIME WARP OPERATING SYSTEM

    E-print Network

    California at Los Angeles, University of

    TEMPORAL DECOMPOSITION OF SIMULATIONS UNDER THE TIME WARP OPERATING SYSTEM Peter Reiher Jet describes how the simulation can be further decomposed temporally. Temporal decomposition offers. This decomposition was originally spatial in nature -- the application was divided into parts along space boundaries

  16. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM...

  17. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM...

  18. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM...

  19. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM...

  20. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM ACT OF 2000 CLAIMS FOR COMPENSATION UNDER THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM...

  1. Efficient algorithms for multi-file caching

    SciTech Connect

    Otoo, Ekow J.; Rotem, Doron; Seshadri, Sridhar

    2004-03-15

    Multi-File Caching issues arise in applications where a set of jobs are processed and each job requests one or more input files. A given job can only be started if all its input files are preloaded into a disk cache. Examples of applications where Multi-File caching may be required are scientific data mining, bit-sliced indexes, and analysis of sets of vertically partitioned files. The difference between this type of caching and traditional file caching systems is that in this environment, caching and replacement decisions are made based on ''combinations of files (file bundles),'' rather than single files. In this work we propose new algorithms for Multi-File caching and analyze their performance. Extensive simulations are presented to establish the effectiveness of the Multi-File caching algorithm in terms of job response time and job queue length.

  2. Informatics in radiology (infoRAD): Vendor-neutral case input into a server-based digital teaching file system.

    PubMed

    Kamauu, Aaron W C; DuVall, Scott L; Robison, Reid J; Liimatta, Andrew P; Wiggins, Richard H; Avrin, David E

    2006-01-01

    Although digital teaching files are important to radiology education, there are no current satisfactory solutions for export of Digital Imaging and Communications in Medicine (DICOM) images from picture archiving and communication systems (PACS) in desktop publishing format. A vendor-neutral digital teaching file, the Radiology Interesting Case Server (RadICS), offers an efficient tool for harvesting interesting cases from PACS without requiring modifications of the PACS configurations. Radiologists push imaging studies from PACS to RadICS via the standard DICOM Send process, and the RadICS server automatically converts the DICOM images into the Joint Photographic Experts Group format, a common desktop publishing format. They can then select key images and create an interesting case series at the PACS workstation. RadICS was tested successfully against multiple unmodified commercial PACS. Using RadICS, radiologists are able to harvest and author interesting cases at the point of clinical interpretation with minimal disruption in clinical work flow. PMID:17102058

  3. Development of experimental systems for material sciences under microgravity

    NASA Technical Reports Server (NTRS)

    Tanii, Jun; Obi, Shinzo; Kamimiyata, Yotsuo; Ajimine, Akio

    1988-01-01

    As part of the Space Experiment Program of the Society of Japanese Aerospace Companies, three experimental systems (G452, G453, G454) have been developed for materials science studies under microgravity by the NEC Corporation. These systems are to be flown as Get Away Special payloads for studying the feasibility of producing new materials. Together with the experimental modules carrying the hardware specific to the experiment, the three systems all comprise standard subsystems consisting of a power supply, sequence controller, temperature controller, data recorder, and video recorder.

  4. Neural systems underlying approach and avoidance in anxiety disorders

    PubMed Central

    Robin L., Aupperle; Martin, P. Paulus

    2010-01-01

    Approach-avoidance conflict is an important psychological concept that has been used extensively to better understand cognition and emotion. This review focuses on neural systems involved in approach, avoidance, and conflict decision making, and how these systems overlap with implicated neural substrates of anxiety disorders. In particular, the role of amygdala, insula, ventral striatal, and prefrontal regions are discussed with respect to approach and avoidance behaviors. Three specific hypotheses underlying the dysfunction in anxiety disorders are proposed, including: (i) over-representation of avoidance valuation related to limbic overactivation; (ii) under- or over-representation of approach valuation related to attenuated or exaggerated striatal activation respectively; and (iii) insufficient integration and arbitration of approach and avoidance valuations related to attenuated orbitofrontal cortex activation. These dysfunctions can be examined experimentally using versions of existing decision-making paradigms, but may also require new translational and innovative approaches to probe approach-avoidance conflict and related neural systems in anxiety disorders. PMID:21319496

  5. File under: A Web name: Academic Sanctions for Students who have Outstanding University Obligations, Policy on [January 7, 1993] Official name: Policy on Academic Sanctions for Students Who Have Outstanding University Obligations [January 7, 1993] Locatio

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Academic Sanctions for Students who have Outstanding University Obligations, Policy on [January 7, 1993] Official name: Policy on Academic Sanctions for Students Who Have OutstandingCouncil/All%20Policies/A/Policy%20on%20Academic%20Sanctions%20for%20 Students%20Who%20Have%20Outstanding

  6. File under: A Web name: Academic Programs and Units, Policy for Approval and Review of [June 24, 2010] Official name: Policy for Approval and Review of Academic Programs and Units [June 24, 2010] Location

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Academic Programs and Units, Policy for Approval and Review of [June 24, 2010] Official name: Policy for Approval and Review of Academic Programs and Units [June 24, 2010 and Review of Academic Programs and Units June 24, 2010 To request an official copy of this policy, contact

  7. File under: G Web name: Governing Council, Procedures for Non-members to Address [June 27, 2013] Procedures for Non-Members to Address Governing Council, its Boards and Committees [June 27, 2013] Location

    E-print Network

    Prodić, Aleksandar

    File under: G Web name: Governing Council, Procedures for Non-members to Address [June 27, 2013] Procedures for Non-Members to Address Governing Council, its Boards and Committees [June 27, 2013] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/G/Procedures%20for%20Non

  8. File under: S Web name: Space at the University of Toronto, Policy on the Temporary Use of [October 28, 2010] Policy on the Temporary use of Space at The University of Toronto [October 28, 2010] Location

    E-print Network

    Prodić, Aleksandar

    File under: S Web name: Space at the University of Toronto, Policy on the Temporary Use of [October 28, 2010] Policy on the Temporary use of Space at The University of Toronto [October 28, 2010%20temporary%20use%20of%20space%20 at%20the%20university%20of%20toronto.docx [Official update: October

  9. File under: E Web name: External Auditor for Non-Audit Services, Policy on Use of the [November 4, 2013] Official name: Policy on the Use of the External Auditor for Non-Audit Services [November 4, 2013] Location

    E-print Network

    Prodić, Aleksandar

    File under: E Web name: External Auditor for Non-Audit Services, Policy on Use of the [November 4, 2013] Official name: Policy on the Use of the External Auditor for Non-Audit Services [November 4, 2013 for Non-Audit Services November 4, 2013 To request an official copy of this policy, contact: The Office

  10. File under: H Web name: Human Rights Review of International Projects, Agreements and Other International Activity, Procedures for [June 3, 1993] Official name: Procedures for the Human Rights Review of International Projects, Agreements, and Other Intern

    E-print Network

    Prodić, Aleksandar

    File under: H Web name: Human Rights Review of International Projects, Agreements and Other International Activity, Procedures for [June 3, 1993] Official name: Procedures for the Human Rights Review://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/H/Human%20Rights%20Review%20of%20Internationa l%20Projects,%20Agreements%20

  11. File under: A Web name: Academic Records, Statement Concerning Changes of Student Personal Information in Official [approved April 16, 2009] Official name: Statement Concerning Changes of Student Personal Information in Official Academic Records [approved

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Academic Records, Statement Concerning Changes of Student Personal Information in Official [approved April 16, 2009] Official name: Statement Concerning Changes of Student authenticate that transcripts are those of the student or alumna named. While it is usual for the University

  12. File under: E Web name: Endowed and Limited Term Chairs, Professorships, Distinguished Scholars and Program Initiatives, Policy on [June 24, 2010] Official name: Policy on Endowed and Limited Term Chairs, Professorships, Distinguished Scholars and Program

    E-print Network

    Toronto, University of

    File under: E Web name: Endowed and Limited Term Chairs, Professorships, Distinguished Scholars and Program Initiatives, Policy on [June 24, 2010] Official name: Policy on Endowed and Limited Term Chairs, a prominent scholar or individual(s) through a formal naming of an endowed or limited term appointment

  13. File under: A Web name: Academic Offices, Policy on Assignment and Usage of [February 14, 2002] Official name: Policy on Assignment and Usage of Academic Offices [February 14, 2002] Location

    E-print Network

    Prodić, Aleksandar

    .council@utoronto.ca Website: http://www.governingcouncil.utoronto.ca/ #12;Policy on Assignment and Usage of Academic OfficesFile under: A Web name: Academic Offices, Policy on Assignment and Usage of [February 14, 2002] Official name: Policy on Assignment and Usage of Academic Offices [February 14, 2002] Location: https

  14. 5 CFR 536.105 - Comparing grades under different pay systems.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...Comparing grades under different pay systems. 536.105 Section 536.105...Comparing grades under different pay systems. (a) General. An agency...movement from a position under a covered pay system to a lower-graded position...

  15. 5 CFR 536.105 - Comparing grades under different pay systems.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...Comparing grades under different pay systems. 536.105 Section 536.105...Comparing grades under different pay systems. (a) General. An agency...movement from a position under a covered pay system to a lower-graded position...

  16. 5 CFR 536.105 - Comparing grades under different pay systems.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...Comparing grades under different pay systems. 536.105 Section 536.105...Comparing grades under different pay systems. (a) General. An agency...movement from a position under a covered pay system to a lower-graded position...

  17. 5 CFR 536.105 - Comparing grades under different pay systems.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...Comparing grades under different pay systems. 536.105 Section 536.105...Comparing grades under different pay systems. (a) General. An agency...movement from a position under a covered pay system to a lower-graded position...

  18. 5 CFR 536.105 - Comparing grades under different pay systems.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...Comparing grades under different pay systems. 536.105 Section 536.105...Comparing grades under different pay systems. (a) General. An agency...movement from a position under a covered pay system to a lower-graded position...

  19. Effective transient states for nonequilibrium systems under ultrafast control pulses

    NASA Astrophysics Data System (ADS)

    Hwang, Bin; Portman, Jenni; Ersoy, Edward; Duxbury, Phillip

    2014-03-01

    We investigate the transient states in nonequilibruim time-dependent systems. Intense ultrafast laser pulses allow the preparation of transient states of matter exhibiting strong non-equilibrium between electrons and lattice. By controling the laser pulse, we are able to change the transient states of these quantum systems. The optical and structural properties as well as the temporal evolution of such states provide insight into the mutual dependence of electronic and atomic structure. We approach the problem by showing examples from charge-density-wave systems and model two level systems. In both of these, nonequilibrium techniques can be used to qualitatively describe the common short-time experimental features. Through simulations based on non-equilibrium Green's function formalism and time dependent master equations approaches we show how to achieve effective transient states for nonequilibrium systems under ultrafast control pulses. Advisor

  20. Empowering file-based radio production through media asset management systems

    NASA Astrophysics Data System (ADS)

    Muylaert, Bjorn; Beckers, Tom

    2006-10-01

    In recent years, IT-based production and archiving of media has matured to a level which enables broadcasters to switch over from tape- or CD-based to file-based workflows for the production of their radio and television programs. This technology is essential for the future of broadcasters as it provides the flexibility and speed of execution the customer demands by enabling, among others, concurrent access and production, faster than real-time ingest, edit during ingest, centrally managed annotation and quality preservation of media. In terms of automation of program production, the radio department is the most advanced within the VRT, the Flemish broadcaster. Since a couple of years ago, the radio department has been working with digital equipment and producing its programs mainly on standard IT equipment. Historically, the shift from analogue to digital based production has been a step by step process initiated and coordinated by each radio station separately, resulting in a multitude of tools and metadata collections, some of them developed in-house, lacking integration. To make matters worse, each of those stations adopted a slightly different production methodology. The planned introduction of a company-wide Media Asset Management System allows a coordinated overhaul to a unified production architecture. Benefits include the centralized ingest and annotation of audio material and the uniform, integrated (in terms of IT infrastructure) workflow model. Needless to say, the ingest strategy, metadata management and integration with radio production systems play a major role in the level of success of any improvement effort. This paper presents a data model for audio-specific concepts relevant to radio production. It includes an investigation of ingest techniques and strategies. Cooperation with external, professional production tools is demonstrated through a use-case scenario: the integration of an existing, multi-track editing tool with a commercially available Media Asset Management System. This will enable an uncomplicated production chain, with a recognizable look and feel for all system users, regardless of their affiliated radio station, as well as central retrieval and storage of information and metadata.

  1. Enhancing I/O Throughput via Efficient Routing and Placement for Large-scale Parallel File Systems

    SciTech Connect

    Dillow, David A; Shipman, Galen M; Oral, H Sarp; Zhang, Zhe; Kim, Youngjae

    2011-01-01

    As storage systems get larger to meet the demands of petascale systems, careful planning must be applied to avoid congestion points and extract the maximum performance. In addition, the large data sets generated by such systems makes it desirable for all compute resources to have common access to this data without needing to copy it to each machine. This paper describes a method of placing I/O close to the storage nodes to minimize contention on Cray s SeaStar2+ network, and extends it to a routed Lustre configuration to gain the same benefits when running against a center-wide file system. Our experiments using half of the resources of Spider the center-wide file system at the Oak Ridge Leadership Computing Facility show that I/O write bandwidth can be improved by up to 45% (from 71.9 to 104 GB/s) for a direct-attached configuration and by 137% (47.6 GB/s to 115 GB/s) for a routed configuration. We demonstrated up to 20.7% reduction in run-time for production scientific applications. With the full Spider system, we demonstrated over 240 GB/s of aggregate bandwidth using our techniques.

  2. 75 FR 21051 - Program for Allocation of Regulatory Responsibilities Pursuant to Rule 17d-2; Notice of Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-22

    ...Inc. (``EDGX''), Financial Industry Regulatory Authority, Inc. (``FINRA...secrets; or (3) software, systems, machine-readable texts and files and related...under this Agreement: 1. Alert Summary Statistics: Total number of surveillance...

  3. 76 FR 4948 - Program for Allocation of Regulatory Responsibilities Pursuant to Rule 17d-2; Notice of Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-27

    ...Inc. (``EDGX''), Financial Industry Regulatory Authority, Inc. (``FINRA...secrets; or (3) software, systems, machine-readable texts and files and related...under this Agreement: 1. Alert Summary Statistics: Total number of surveillance...

  4. XML Files

    MedlinePLUS

    ... nlm.nih.gov/medlineplus/xml.html MedlinePlus XML Files To use the sharing features on this page, ... information on all English and Spanish topic groups. Files generated on December 01, 2015 MedlinePlus Health Topic ...

  5. Creating Interactive Graphical Overlays in the Advanced Weather Interactive Processing System (AWIPS) Using Shapefiles and DGM Files

    NASA Technical Reports Server (NTRS)

    Barrett, Joe H., III; Lafosse, Richard; Hood, Doris; Hoeth, Brian

    2007-01-01

    Graphical overlays can be created in real-time in the Advanced Weather Interactive Processing System (AWIPS) using shapefiles or DARE Graphics Metafile (DGM) files. This presentation describes how to create graphical overlays on-the-fly for AWIPS, by using two examples of AWIPS applications that were created by the Applied Meteorology Unit (AMU). The first example is the Anvil Threat Corridor Forecast Tool, which produces a shapefile that depicts a graphical threat corridor of the forecast movement of thunderstorm anvil clouds, based on the observed or forecast upper-level winds. This tool is used by the Spaceflight Meteorology Group (SMG) and 45th Weather Squadron (45 WS) to analyze the threat of natural or space vehicle-triggered lightning over a location. The second example is a launch and landing trajectory tool that produces a DGM file that plots the ground track of space vehicles during launch or landing. The trajectory tool can be used by SMG and the 45 WS forecasters to analyze weather radar imagery along a launch or landing trajectory. Advantages of both file types will be listed.

  6. 12 CFR 622.18 - Filing.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 12 Banks and Banking 7 2013-01-01 2013-01-01 false Filing. 622.18 Section 622.18 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM RULES OF PRACTICE AND PROCEDURE Rules Applicable to Formal Hearings § 622.18 Filing. (a) Filing. Papers required or permitted to be filed with the Board shall be filed with the Chairman of the Board,...

  7. Registered File Support for Critical Operations Files at (Space Infrared Telescope Facility) SIRTF

    NASA Technical Reports Server (NTRS)

    Turek, G.; Handley, Tom; Jacobson, J.; Rector, J.

    2001-01-01

    The SIRTF Science Center's (SSC) Science Operations System (SOS) has to contend with nearly one hundred critical operations files via comprehensive file management services. The management is accomplished via the registered file system (otherwise known as TFS) which manages these files in a registered file repository composed of a virtual file system accessible via a TFS server and a file registration database. The TFS server provides controlled, reliable, and secure file transfer and storage by registering all file transactions and meta-data in the file registration database. An API is provided for application programs to communicate with TFS servers and the repository. A command line client implementing this API has been developed as a client tool. This paper describes the architecture, current implementation, but more importantly, the evolution of these services based on evolving community use cases and emerging information system technology.

  8. Spectrum Sharing in Cognitive Radio Systems Under Outage Probablility Constraint 

    E-print Network

    Cai, Pei Li

    2011-02-22

    allocation methodology. However, according to the recent inves- tigations by the FCC, this has led to more than 70% of the allocated spectrum in the United States being under-utilized. Cognitive radio (CR) technology, which supports opportunistic spectrum... sharing, is one idea that is proposed to improve the overall utilization e ciency of the radio spectrum. In this thesis we consider a CR communication system based on spectrum sharing schemes, where we have a secondary user (SU) link with multiple...

  9. Spin system trajectory analysis under optimal control pulses

    E-print Network

    Ilya Kuprov

    2012-12-18

    Several methods are proposed for the analysis, visualization and interpretation of high-dimensional spin system trajectories produced by quantum mechanical simulations. It is noted that expectation values of specific observables in large spin systems often feature fast, complicated and hard-to-interpret time dynamics and suggested that populations of carefully selected subspaces of states are much easier to analyze and interpret. As an illustration of the utility of the proposed methods, it is demonstrated that the apparent "noisy" appearance of many optimal control pulses in NMR and EPR spectroscopy is an illusion - the underlying spin dynamics is shown to be smooth, orderly and very tightly controlled.

  10. Distributed File System Utilities to Manage Large DatasetsVersion 0.5

    Energy Science and Technology Software Center (ESTSC)

    2014-05-21

    FileUtils provides a suite of tools to manage large datasets typically created by large parallel MPI applications. They are written in C and use standard POSIX I/Ocalls. The current suite consists of tools to copy, compare, remove, and list. The tools provide dramatic speedup over existing Linux tools, which often run as a single process.

  11. 48 CFR 3004.804 - Closeout of contract files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 7 2011-10-01 2011-10-01 false Closeout of contract files..., HOMELAND SECURITY ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Government Contract Files 3004.804 Closeout of contract files....

  12. 48 CFR 3004.804 - Closeout of contract files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 7 2013-10-01 2012-10-01 true Closeout of contract files..., HOMELAND SECURITY ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Government Contract Files 3004.804 Closeout of contract files....

  13. 48 CFR 3004.804 - Closeout of contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Closeout of contract files..., HOMELAND SECURITY ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Government Contract Files 3004.804 Closeout of contract files....

  14. 47 CFR 1.10008 - What are IBFS file numbers?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...10008 Section 1.10008 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Grants by Random Selection International Bureau Filing System § 1.10008 What are IBFS file numbers? (a) We assign file...

  15. 78 FR 26337 - Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-06

    ...Self-Certification of Coal Capability Under the...Act AGENCY: Office of Electricity Delivery and Energy Reliability...powerplant, submitted a coal capability self- certification...ADDRESSES: Copies of coal capability self-certification...request, in the Office of Electricity Delivery and Energy...

  16. 76 FR 48833 - Notice of Filings of Self-Certifications of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-09

    ...Self-Certifications of Coal Capability Under the...Use Act AGENCY: Office Electricity Delivery and Energy Reliability...powerplants submitted coal capability self-certifications...ADDRESSES: Copies of coal capability self-certification...request, in the Office of Electricity Delivery and Energy...

  17. 77 FR 74473 - Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-14

    ...Self-Certification of Coal Capability Under the...Use Act AGENCY: Office Electricity Delivery and Energy Reliability...powerplant, submitted a coal capability self- certification...ADDRESSES: Copies of coal capability self-certification...request, in the Office of Electricity Delivery and Energy...

  18. 78 FR 54879 - Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-06

    ...Self-Certification of Coal Capability Under the...Use Act AGENCY: Office Electricity Delivery and Energy Reliability...powerplant, submitted a coal capability self-certification...ADDRESSES: Copies of coal capability self-certification...request, in the Office of Electricity Delivery and Energy...

  19. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access. Information contained in the Correction Notice of Intent to Enforce is available online in the Copyright.... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c)...

  20. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2?...

  1. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2?...

  2. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2?...

  3. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2?...

  4. 37 CFR 201.33 - Procedures for filing Notices of Intent to Enforce a restored copyright under the Uruguay Round...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... any person who— (i) With respect to a particular work, engages in acts, before the source country of that work becomes an eligible country under the URAA, which would have violated 17 U.S.C. 106 if the restored work had been subject to copyright protection and who, after the source country becomes...

  5. Terminology Extraction from Log Files

    NASA Astrophysics Data System (ADS)

    Saneifar, Hassan; Bonniol, Stéphane; Laurent, Anne; Poncelet, Pascal; Roche, Mathieu

    The log files generated by digital systems can be used in management information systems as the source of important information on the condition of systems. However, log files are not exhaustively exploited in order to extract information. The classical methods of information extraction such as terminology extraction methods are irrelevant to this context because of the specific characteristics of log files like their heterogeneous structure, the special vocabulary and the fact that they do not respect a natural language grammar. In this paper, we introduce our approach Exterlog to extract the terminology from log files. We detail how it deals with the particularity of such textual data.

  6. 29 CFR 15.303 - How does a Job Corps student file a claim for loss of or damages to personal property under the WIA?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 2013-07-01 false How does a Job Corps student file a claim for loss of or damages...STATUTES Claims Arising Out of the Operation of the Job Corps § 15.303 How does a Job Corps student file a claim for loss of or...

  7. 29 CFR 15.303 - How does a Job Corps student file a claim for loss of or damages to personal property under the WIA?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 2013-07-01 true How does a Job Corps student file a claim for loss of or damages...STATUTES Claims Arising Out of the Operation of the Job Corps § 15.303 How does a Job Corps student file a claim for loss of or...

  8. Automated File Transfer and Storage Management Concepts for Space

    NASA Technical Reports Server (NTRS)

    Hogie, Keith; Criscuolo, Ed; Parise, Ron

    2004-01-01

    This presentation will summarize work that has been done to prototype and analyze approaches for automated file transfer and storage management for space missions. The concepts were prototyped in an environment with data files being generated at the target mission rates and stored in onboard files. The space-to-ground link was implemented using a channel simulator to introduce representative mission delays and errors. The system was operated for days with data files building up on the spacecraft and periodically being transferred to ground storage during a limited contact time. Overall performance was measured to identify limits under which the entire data volume could be transferred automatically while still fitting into the mission s limited contact time. The overall concepts, measurements, and results will be presented.

  9. Sustainable infrastructure system modeling under uncertainties and dynamics

    NASA Astrophysics Data System (ADS)

    Huang, Yongxi

    Infrastructure systems support human activities in transportation, communication, water use, and energy supply. The dissertation research focuses on critical transportation infrastructure and renewable energy infrastructure systems. The goal of the research efforts is to improve the sustainability of the infrastructure systems, with an emphasis on economic viability, system reliability and robustness, and environmental impacts. The research efforts in critical transportation infrastructure concern the development of strategic robust resource allocation strategies in an uncertain decision-making environment, considering both uncertain service availability and accessibility. The study explores the performances of different modeling approaches (i.e., deterministic, stochastic programming, and robust optimization) to reflect various risk preferences. The models are evaluated in a case study of Singapore and results demonstrate that stochastic modeling methods in general offers more robust allocation strategies compared to deterministic approaches in achieving high coverage to critical infrastructures under risks. This general modeling framework can be applied to other emergency service applications, such as, locating medical emergency services. The development of renewable energy infrastructure system development aims to answer the following key research questions: (1) is the renewable energy an economically viable solution? (2) what are the energy distribution and infrastructure system requirements to support such energy supply systems in hedging against potential risks? (3) how does the energy system adapt the dynamics from evolving technology and societal needs in the transition into a renewable energy based society? The study of Renewable Energy System Planning with Risk Management incorporates risk management into its strategic planning of the supply chains. The physical design and operational management are integrated as a whole in seeking mitigations against the potential risks caused by feedstock seasonality and demand uncertainty. Facility spatiality, time variation of feedstock yields, and demand uncertainty are integrated into a two-stage stochastic programming (SP) framework. In the study of Transitional Energy System Modeling under Uncertainty, a multistage stochastic dynamic programming is established to optimize the process of building and operating fuel production facilities during the transition. Dynamics due to the evolving technologies and societal changes and uncertainty due to demand fluctuations are the major issues to be addressed.

  10. A robotic assistant system for cardiac interventions under MRI guidance

    NASA Astrophysics Data System (ADS)

    Li, Ming; Mazilu, Dumitru; Wood, Bradford J.; Horvath, Keith A.; Kapoor, Ankur

    2010-02-01

    In this paper we present a surgical assistant system for implanting prosthetic aortic valve transapically under MRI guidance, in a beating heart. The system integrates an MR imaging system, a robotic system, as well as user interfaces for a surgeon to plan the procedure and manipulate the robot. A compact robotic delivery module mounted on a robotic arm is used for delivering both balloon-expandable and self-expanding prosthesis. The system provides different user interfaces at different stages of the procedure. A compact fiducial pattern close to the volume of interest is proposed for robot registration. The image processing and the transformation recovery methods using this fiducial in MRI are presented. The registration accuracy obtained by using this compact fiducial is comparable to the larger multi-spherical marker registration method. The registration accuracy using these two methods is less than 0.62+/-0.50 deg (mean +/- std. dev.) and 0.63+/-0.72 deg (mean +/- std. dev.), respectively. We evaluated each of the components and show that they can work together to form a complete system for transapical aortic valve replacement.

  11. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...maintaining and auditing books of account, preparation...Analysis: Preparation and review of company business plan...Management information systems review, installation and analysis...Accounting: Reconstructing books and records from past...Valuation: Appraise or review appraisals of...

  12. The deep hydrogeologic flow system underlying the Oak Ridge Reservation

    SciTech Connect

    Nativ, R.; Hunley, A.E.

    1993-07-01

    The deep hydrogeologic system underlying the Oak Ridge Reservation contains some areas contaminated with radionuclides, heavy metals, nitrates, and organic compounds. The groundwater at that depth is saline and has previously been considered stagnant. On the basis of existing and newly collected data, the nature of flow of the saline groundwater and its potential discharge into shallow, freshwater systems was assessed. Data used for this purpose included (1) spatial and temporal pressures and hydraulic heads measured in the deep system, (2) hydraulic parameters of the formations in question, (3) spatial temperature variations, and (4) spatial and temporal chemical and isotopic composition of the saline groundwater. In addition, chemical analyses of brine in adjacent areas in Tennessee, Kentucky, Ohio, Pennsylvania, and West Virginia were compared with the deep water underlying the reservation to help assess the origin of the brine. Preliminary conclusions suggest that the saline water contained at depth is old but not isolated (in terms of recharge and discharge) from the overlying active and freshwater-bearing units. The confined water (along with dissolved solutes) moves along open fractures (or man-made shortcuts) at relatively high velocity into adjacent, more permeable units. Groundwater volumes involved in this flow probably are small.

  13. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false File numbers. 1.1405 Section 1.1405... Attachment Complaint Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for...

  14. 49 CFR 190.209 - Case file.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 3 2014-10-01 2014-10-01 false Case file. 190.209 Section 190.209 Transportation... REGULATORY PROCEDURES Enforcement § 190.209 Case file. (a) The case file, as defined in this section, is available to the respondent in all enforcement proceedings conducted under this subpart. (b) The case...

  15. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 1 2012-10-01 2012-10-01 false File numbers. 1.1405 Section 1.1405... Attachment Complaint Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for...

  16. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false File numbers. 1.1405 Section 1.1405... Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for administrative purposes only and...

  17. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 1 2013-10-01 2013-10-01 false File numbers. 1.1405 Section 1.1405... Attachment Complaint Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for...

  18. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 1 2011-10-01 2011-10-01 false File numbers. 1.1405 Section 1.1405... Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for administrative purposes only and...

  19. 40 CFR 78.4 - Filings.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 17 2013-07-01 2013-07-01 false Filings. 78.4 Section 78.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPEAL PROCEDURES § 78.4 Filings. (a)(1) All original filings made under this part shall be signed by the person...

  20. Demonstrations of Alternative Delivery Systems Under Medicare and Medicaid

    PubMed Central

    Galblum, Trudi W.; Trieger, Sidney

    1982-01-01

    The current Administration supports competition as one method of helping to contain escalating costs. Proponents of competition claim many advantages to its implementation, but their claims have yet to be widely tested. Over the past several years, however, the Health Care Financing Administration has supported a number of Medicare and Medicaid demonstrations to yield information on plan participation, marketing, and reimbursement under alternative delivery systems. Much of these data are applicable to the competitive plans being considered by the Administration and Congress. This paper discusses recent findings from these projects. PMID:10309599

  1. The Spider Assemblage of Olive Groves Under Three Management Systems.

    PubMed

    Cárdenas, Manuel; Pascual, Felipe; Campos, Mercedes; Pekár, Stano

    2015-06-01

    Olives, Olea europaea L., are one of the most important crops in Spain. They are currently produced under three management systems that involve different aspects of soil and pest management, productivity, and crop economy: organic, (integrated pest management-IPM), and conventional. Here, we studied how these systems affect the spiders, the natural enemies of olive grove pests, and performed a detailed analysis of their assemblage. The study was performed during one season in 18 olive groves in Andalusia, Spain, and included both ground-dwelling and canopy species. We found that the organic system supported a significantly higher level of abundance and diversity of canopy spiders than the IPM and conventional systems. Plowing had a negative effect on spider abundance and diversity. However, the presence of hedge vegetation had a positive effect on the spiders. The practices affected the guild structure differently, with some guilds supported by organic and others by IPM. It is suggested that sustainability (in terms of pest control) in olive grove agroecosystems may be obtained by maintaining hedge vegetation regardless of the management system. PMID:26313956

  2. Evaluation of two cooling systems under a firefighter coverall.

    PubMed

    Teunissen, Lennart P J; Wang, Li-Chu; Chou, Shih-Nung; Huang, Chin-Hsien; Jou, Gwo-Tsuen; Daanen, Hein A M

    2014-11-01

    Firemen often suffer from heat strain. This study investigated two chest cooling systems for use under a firefighting suit. In nine male subjects, a vest with water soaked cooling pads and a vest with water perfused tubes were compared to a control condition. Subjects performed 30 min walking and 10 min recovery in hot conditions, while physiological and perceptual parameters were measured. No differences were observed in heart rate and rectal temperature, but scapular skin temperature and fluid loss were lower using the perfused vest. Thermal sensation was cooler for the perfused vest than for the other conditions, while the cool pad vest felt initially cooler than control. However, comfort and RPE scores were similar. We conclude that the cooling effect of both tested systems, mainly providing a (temporally) cooler thermal sensation, was limited and did not meet the expectations. PMID:24798511

  3. Mathematical modeling of the behavior of geothermal systems under exploitation

    SciTech Connect

    Bodvarsson, G.S.

    1982-01-01

    Analytical and numerical methods have been used in this investigation to model the behavior of geothermal systems under exploitation. The work is divided into three parts: (1) development of a numerical code, (2) theoretical studies of geothermal systems, and (3) field applications. A new single-phase three-dimensional simulator, capable of solving heat and mass flow problems in a saturated, heterogeneous porous or fractured medium has been developed. The simulator uses the integrated finite difference method for formulating the governing equations and an efficient sparse solver for the solution of the linearized equations. In the theoretical studies, various reservoir engineering problems have been examined. These include (a) well-test analysis, (b) exploitation strategies, (c) injection into fractured rocks, and (d) fault-charged geothermal reservoirs.

  4. Implementing MPI-IO atomic mode and shared file pointers using MPI one-sided communication.

    SciTech Connect

    Latham, R.; Ross, R.; Thakur, R.; Mathematics and Computer Science

    2007-07-01

    The ROMIO implementation of the MPI-IO standard provides a portable infrastructure for use on top of a variety of underlying storage targets. These targets vary widely in their capabilities, and in some cases additional effort is needed within ROMIO to support all MPI-IO semantics. Two aspects of the interface that can be problematic to implement are MPI-IO atomic mode and the shared file pointer access routines. Atomic mode requires enforcing strict consistency semantics, and shared file pointer routines require communication and coordination in order to atomically update a shared resource. For some file systems, native locks may be used to implement these features, but not all file systems have lock support. In this work, we describe algorithms for implementing efficient mutex locks using MPI-1 and the one-sided capabilities from MPI-2. We then show how these algorithms may be used to implement both MPI-IO atomic mode and shared file pointer methods for ROMIO without requiring any features from the underlying file system. We show that these algorithms can outperform traditional file system lock approaches. Because of the portable nature of these algorithms, they are likely useful in a variety of situations where distributed locking or coordination is needed in the MPI-2 environment.

  5. 78 FR 16848 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-19

    ... following electric corporate filings: Docket Numbers: EC13-78-000. Applicants: Plains End LLC, Plains End II, LLC, Rathdrum Power, LLC. Description: Application of Plains End, LLC, et al. under FPA 203 and...-000. Applicants: California Independent System Operator Corporation. Description:...

  6. 10 CFR 205.372 - Filing procedures; number of copies.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ....372 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Electric Power System... Electric Facilities and the Transfer of Electricity to Alleviate An Emergency Shortage of Electric Power... and reports required under §§ 205.370 through 205.379 shall be filed with the Division of Power...

  7. 77 FR 15026 - Privacy Act of 1974; Farm Records File (Automated) System of Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ...Market Loss Assistance, Cash Systems, COC Elections Systems, Commodity Management Systems, Commodity Operation Systems, Common Farm Programs Systems, Conservation Systems, Consolidated Farm Loan Program Information and...

  8. 76 FR 15229 - Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard Order...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-21

    ...Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard...directive (AD) that applies to Goodrich evacuation systems approved under TSO- C69b and...relief valves on the affected Goodrich evacuation systems, and corrective action if...

  9. 76 FR 81885 - Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard Order...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ...Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard...airworthiness directive (AD) for Goodrich Evacuation Systems approved under Technical Standard...relief valves on the affected Goodrich evacuation systems, replacing certain...

  10. 77 FR 19069 - Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard Order...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ...Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard...airworthiness directive (AD) for Goodrich Evacuation Systems approved under TSO TSO-C69b...relief valves on the affected Goodrich evacuation systems, and corrective action if...

  11. Propulsion system assessment for very high UAV under ERAST

    NASA Technical Reports Server (NTRS)

    Bettner, James L.; Blandford, Craig S.; Rezy, Bernie J.

    1995-01-01

    A series of propulsion systems were configured to power a sensor platform to very high altitudes under the Experimental Research Advanced Sensor Technology (ERAST) program. The unmanned aircraft was required to carry a 100 kg instrument package to 90,000 ft altitude, collect samples and make scientific measurements for 4 hr, and then return to base. A performance screening evaluation of 11 propulsion systems for this high altitude mission was conducted. Engine configurations ranged from turboprop, spark ignition, two- and four-stroke diesel, rotary, and fuel cell concepts. Turbo and non-turbo-compounded, recuperated and nonrecuperated arrangements, along with regular JP and hydrogen fuels were interrogated. Each configuration was carried through a preliminary design where all turbomachinery, heat exchangers, and engine core concepts were sized and weighed for near-optimum design point performance. Mission analysis, which sized the aircraft for each of the propulsion systems investigated, was conducted. From the array of configurations investigated, the propulsion system for each of three different technology levels (i.e., state of the art, near term, and far term) that was best suited for this very high altitude mission was identified and recommended for further study.

  12. Optimal maintenance of a multi-unit system under dependencies

    NASA Astrophysics Data System (ADS)

    Sung, Ho-Joon

    The availability, or reliability, of an engineering component greatly influences the operational cost and safety characteristics of a modern system over its life-cycle. Until recently, the reliance on past empirical data has been the industry-standard practice to develop maintenance policies that provide the minimum level of system reliability. Because such empirically-derived policies are vulnerable to unforeseen or fast-changing external factors, recent advancements in the study of topic on maintenance, which is known as optimal maintenance problem, has gained considerable interest as a legitimate area of research. An extensive body of applicable work is available, ranging from those concerned with identifying maintenance policies aimed at providing required system availability at minimum possible cost, to topics on imperfect maintenance of multi-unit system under dependencies. Nonetheless, these existing mathematical approaches to solve for optimal maintenance policies must be treated with caution when considered for broader applications, as they are accompanied by specialized treatments to ease the mathematical derivation of unknown functions in both objective function and constraint for a given optimal maintenance problem. These unknown functions are defined as reliability measures in this thesis, and theses measures (e.g., expected number of failures, system renewal cycle, expected system up time, etc.) do not often lend themselves to possess closed-form formulas. It is thus quite common to impose simplifying assumptions on input probability distributions of components' lifetime or repair policies. Simplifying the complex structure of a multi-unit system to a k-out-of-n system by neglecting any sources of dependencies is another commonly practiced technique intended to increase the mathematical tractability of a particular model. This dissertation presents a proposal for an alternative methodology to solve optimal maintenance problems by aiming to achieve the same end-goals as Reliability Centered Maintenance (RCM). RCM was first introduced to the aircraft industry in an attempt to bridge the gap between the empirically-driven and theory-driven approaches to establishing optimal maintenance policies. Under RCM, qualitative processes that enable the prioritizing of functions based on the criticality and influence would be combined with mathematical modeling to obtain the optimal maintenance policies. Where this thesis work deviates from RCM is its proposal to directly apply quantitative processes to model the reliability measures in optimal maintenance problem. First, Monte Carlo (MC) simulation, in conjunction with a pre-determined Design of Experiments (DOE) table, can be used as a numerical means of obtaining the corresponding discrete simulated outcomes of the reliability measures based on the combination of decision variables (e.g., periodic preventive maintenance interval, trigger age for opportunistic maintenance, etc.). These discrete simulation results can then be regressed as Response Surface Equations (RSEs) with respect to the decision variables. Such an approach to represent the reliability measures with continuous surrogate functions (i.e., the RSEs) not only enables the application of the numerical optimization technique to solve for optimal maintenance policies, but also obviates the need to make mathematical assumptions or impose over-simplifications on the structure of a multi-unit system for the sake of mathematical tractability. The applicability of the proposed methodology to a real-world optimal maintenance problem is showcased through its application to a Time Limited Dispatch (TLD) of Full Authority Digital Engine Control (FADEC) system. In broader terms, this proof-of-concept exercise can be described as a constrained optimization problem, whose objective is to identify the optimal system inspection interval that guarantees a certain level of availability for a multi-unit system. A variety of reputable numerical techniques were used to model the problem as accurately as possible, including a

  13. Speed of disentanglement in multiqubit systems under a depolarizing channel

    SciTech Connect

    Zhang, Fu-Lin Jiang, Yue; Liang, Mai-Lin

    2013-06-15

    We investigate the speed of disentanglement in the multiqubit systems under the local depolarizing channel, in which each qubit is independently coupled to the environment. We focus on the bipartition entanglement between one qubit and the remaining qubits constituting the system, which is measured by the negativity. For the two-qubit system, the speed for the pure state completely depends on its entanglement. The upper and lower bounds of the speed for arbitrary two-qubit states, and the necessary conditions for a state achieving them, are obtained. For the three-qubit system, we study the speed for pure states, whose entanglement properties can be completely described by five local-unitary-transformation invariants. An analytical expression of the relation between the speed and the invariants is derived. The speed is enhanced by the three-tangle which is the entanglement among the three qubits, but reduced by the two-qubit correlations outside the concurrence. The decay of the negativity can be restrained by the other two negativity with the coequal sense. The unbalance between two qubits can reduce the speed of disentanglement of the remaining qubit in the system, and even can retrieve the entanglement partially. For the k-qubit systems in an arbitrary superposition of Greenberger–Horne–Zeilinger state and W state, the speed depends almost entirely on the amount of the negativity when k increases to five or six. An alternative quantitative definition for the robustness of entanglement is presented based on the speed of disentanglement, with comparison to the widely studied robustness measured by the critical amount of noise parameter where the entanglement vanishes. In the limit of large number of particles, the alternative robustness of the Greenberger–Horne–Zeilinger-type states is inversely proportional to k, and the one of the W states approaches 1/?(k)

  14. Inelastic collapse in one-dimensional driven systems under gravity

    E-print Network

    Jun'ichi Wakou; Hiroyuki Kitagishi; Takahiro Sakaue; Hiizu Nakanishi

    2013-03-19

    We study the inelastic collapse in the one-dimensional $N$-particle systems in the situation where the system is driven from below under the gravity. We investigate the hard-sphere limit of the inelastic soft-sphere systems by numerical simulations to find how the collision rate per particle $n_{coll}$ increases as a function of the elastic constant of the sphere $k$ when the restitution coefficient $e$ is kept constant. For the systems with large enough $N \\agt 20$, we find three regimes in $e$ depending on the behavior of $n_{coll}$ in the hard-sphere limit: (i) uncollapsing regime for $1 \\ge e > e_{c1}$, where $n_{coll}$ converges to a finite value, (ii) logarithmically collapsing regime for $e_{c1} > e > e_{c2}$, where $n_{coll}$ diverges as $n_{coll} \\sim \\log k$, and (iii) power-law collapsing regime for $e_{c2} > e > 0$, where $n_{coll}$ diverges as $n_{coll} \\sim k^\\alpha$ with an exponent $\\alpha$ that depends on $N$. The power-law collapsing regime shrinks as $N$ decreases and seems not to exist for the system with N=3 while, for large $N$, the size of the uncollapsing and the logarithmically collapsing regime decreases as $e_{c1} \\simeq 1-2.6/N$ and $e_{c2} \\simeq 1-3.0/N$. We demonstrate that this difference between large and small systems exists already in the inelastic collapse without the external drive and the gravity.

  15. System for Processing Coded OFDM Under Doppler and Fading

    NASA Technical Reports Server (NTRS)

    Tsou, Haiping; Darden, Scott; Lee, Dennis; Yan, Tsun-Yee

    2005-01-01

    An advanced communication system has been proposed for transmitting and receiving coded digital data conveyed as a form of quadrature amplitude modulation (QAM) on orthogonal frequency-division multiplexing (OFDM) signals in the presence of such adverse propagation-channel effects as large dynamic Doppler shifts and frequency-selective multipath fading. Such adverse channel effects are typical of data communications between mobile units or between mobile and stationary units (e.g., telemetric transmissions from aircraft to ground stations). The proposed system incorporates novel signal processing techniques intended to reduce the losses associated with adverse channel effects while maintaining compatibility with the high-speed physical layer specifications defined for wireless local area networks (LANs) as the standard 802.11a of the Institute of Electrical and Electronics Engineers (IEEE 802.11a). OFDM is a multi-carrier modulation technique that is widely used for wireless transmission of data in LANs and in metropolitan area networks (MANs). OFDM has been adopted in IEEE 802.11a and some other industry standards because it affords robust performance under frequency-selective fading. However, its intrinsic frequency-diversity feature is highly sensitive to synchronization errors; this sensitivity poses a challenge to preserve coherence between the component subcarriers of an OFDM system in order to avoid intercarrier interference in the presence of large dynamic Doppler shifts as well as frequency-selective fading. As a result, heretofore, the use of OFDM has been limited primarily to applications involving small or zero Doppler shifts. The proposed system includes a digital coherent OFDM communication system that would utilize enhanced 802.1la-compatible signal-processing algorithms to overcome effects of frequency-selective fading and large dynamic Doppler shifts. The overall transceiver design would implement a two-frequency-channel architecture (see figure) that would afford frequency diversity for reducing the adverse effects of multipath fading. By using parallel concatenated convolutional codes (also known as Turbo codes) across the dual-channel and advanced OFDM signal processing within each channel, the proposed system is intended to achieve at least an order of magnitude improvement in received signal-to-noise ratio under adverse channel effects while preserving spectral efficiency.

  16. 10 CFR 205.81 - What to file.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 3 2012-01-01 2012-01-01 false What to file. 205.81 Section 205.81 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Interpretation § 205.81 What to file. (a) A person filing under this subpart shall file a “Request for Interpretation,” which should be clearly labeled...

  17. 46 CFR 530.5 - Duty to file.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 9 2014-10-01 2014-10-01 false Duty to file. 530.5 Section 530.5 Shipping FEDERAL... Provisions § 530.5 Duty to file. (a) The duty under this part to file service contracts, amendments and... conditions as the parties may agree. (c) Registration—(1) Application. Authority to file or delegate...

  18. 10 CFR 205.81 - What to file.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 3 2010-01-01 2010-01-01 false What to file. 205.81 Section 205.81 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Interpretation § 205.81 What to file. (a) A person filing under this subpart shall file a “Request for Interpretation,” which should be clearly labeled...

  19. 10 CFR 1003.32 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.32 Section 1003.32 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Appeals § 1003.32 What to file. A person filing under this subpart shall file an “Appeal of Order” which should be...

  20. 10 CFR 1003.51 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.51 Section 1003.51 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Modification or Rescission § 1003.51 What to file. A person filing under this subpart shall file an “Application...

  1. 46 CFR 530.5 - Duty to file.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 9 2013-10-01 2013-10-01 false Duty to file. 530.5 Section 530.5 Shipping FEDERAL... Provisions § 530.5 Duty to file. (a) The duty under this part to file service contracts, amendments and... conditions as the parties may agree. (c) Registration—(1) Application. Authority to file or delegate...

  2. 10 CFR 1003.41 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.41 Section 1003.41 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Stays § 1003.41 What to file. A person filing under this subpart shall file an “Application for Stay” which should be...

  3. 46 CFR 530.5 - Duty to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 9 2010-10-01 2010-10-01 false Duty to file. 530.5 Section 530.5 Shipping FEDERAL... Provisions § 530.5 Duty to file. (a) The duty under this part to file service contracts, amendments and... conditions as the parties may agree. (c) Registration—(1) Application. Authority to file or delegate...

  4. 10 CFR 205.81 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 3 2014-01-01 2014-01-01 false What to file. 205.81 Section 205.81 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Interpretation § 205.81 What to file. (a) A person filing under this subpart shall file a “Request for Interpretation,” which should be clearly labeled...

  5. 46 CFR 530.5 - Duty to file.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 9 2012-10-01 2012-10-01 false Duty to file. 530.5 Section 530.5 Shipping FEDERAL... Provisions § 530.5 Duty to file. (a) The duty under this part to file service contracts, amendments and... conditions as the parties may agree. (c) Registration—(1) Application. Authority to file or delegate...

  6. 46 CFR 530.5 - Duty to file.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 9 2011-10-01 2011-10-01 false Duty to file. 530.5 Section 530.5 Shipping FEDERAL... Provisions § 530.5 Duty to file. (a) The duty under this part to file service contracts, amendments and... conditions as the parties may agree. (c) Registration—(1) Application. Authority to file or delegate...

  7. 10 CFR 1003.51 - What to file.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false What to file. 1003.51 Section 1003.51 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Modification or Rescission § 1003.51 What to file. A person filing under this subpart shall file an “Application...

  8. File under: A Web name: Assets, Policy on the Use of Fixed, Away from University Premises (including Regulations) [June 25, 1991] Official name: Policy on Use of Fixed Assets Away from University Premises (including Regulations [June 25, 1991] Location

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Assets, Policy on the Use of Fixed, Away from University Premises (including Regulations) [June 25, 1991] Official name: Policy on Use of Fixed Assets Away from University://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/A/policy%20on%20use%20of%20fixed%20assets%20a way%20from%20university%20

  9. File under: A Web name: Assets, Policy on the Disposal of Fixed, And Allocations of Proceeds of Disposition (including Regulations) [June 25, 1991] Official name: Policy on Disposal of Fixed Assets and Allocation of Proceeds of Dispostion (including Regul

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: Assets, Policy on the Disposal of Fixed, And Allocations of Proceeds of Disposition (including Regulations) [June 25, 1991] Official name: Policy on Disposal of Fixed Assets://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/A/policy%20on%20disposal%20of%20fixed%20assets %20and%20allocation%20of%20

  10. File under: A Web name: AIDS, Policy with respect to AIDS for the U of T [March 9, 1989] Official name: Policy with Respect to AIDS for the University of Toronto [March 9, 1989] Location

    E-print Network

    Prodić, Aleksandar

    File under: A Web name: AIDS, Policy with respect to AIDS for the U of T [March 9, 1989] Official name: Policy with Respect to AIDS for the University of Toronto [March 9, 1989] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/A/policy%20with%20respect%20to%20AIDS%20for%2 0the%20university%20of%20

  11. File under: N Web name: Name, Policy on the Use of the University of Toronto [October 17, 1991] Policy on the Use of the University of Toronto Name[October 17, 1991] Location

    E-print Network

    Prodić, Aleksandar

    File under: N Web name: Name, Policy on the Use of the University of Toronto [October 17, 1991] Policy on the Use of the University of Toronto Name[October 17, 1991] Location: https://share.utorcsi.utoronto.ca/sites/gc/Governing%20Council/All%20Policies/N/policy%20on%20the%20use%20of%20the%20unive rsity%20of%20toronto%20name

  12. Impacts of Control and Communication System Vulnerabilities on Power Systems Under

    E-print Network

    Hayat, Majeed M.

    with the load shedding mechanism and their effects on power-grid cascading behavior are revealed by means/or marketing policies of the power grid, which can affect the ability to implement the control signals1 Impacts of Control and Communication System Vulnerabilities on Power Systems Under Contingencies

  13. Length and occupancy dependence of the tracer exchange in single-file systems

    NASA Astrophysics Data System (ADS)

    Rödenbeck, Christian; Kärger, Jörg

    1999-02-01

    The tracer exchange between a finite single-file channel (in which the diffusing guest particles are not able to pass each other) and its surroundings is considered. A mean-field calculation shows that the mean intracrystalline residence time ?intra is proportional to the 3rd power of the channel length L. Further, it is proportional to ?/(1-?), where ? denotes the relative occupancy. Monte Carlo simulations confirm these results to a satisfactory accuracy, especially at high occupancy. The essential mechanism of tracer exchange is considered in more detail.

  14. Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O

    SciTech Connect

    Moody, A; Bronevetsky, G

    2008-05-20

    The growth in the computational capability of modern supercomputing systems has been accompanied by corresponding increases in CPU count, total RAM, and total storage capacity. Indeed, systems such as Blue-Gene/L [3], BlueGene/P, Ranger, and the Cray XT series have grown to more than 100k processors, with 100 TeraBytes of RAM and are attached to multi-PetaByte storage systems. However, as part of this design evolution, large supercomputers have lost node-local storage elements, such as disks. While this decision was motivated by important considerations like overall system reliability, it also resulted in these systems losing a key level in their memory hierarchy, with nothing to fill the gap between local RAM and the parallel file system. While today's large supercomputers are typically attached to fast parallel file systems, which provide tens of GBs/s of I/O bandwidth, the computational capacity has grown much faster than the storage bandwidth capacity. As such, these machines are now provided with much less than 1GB/s of I/O bandwidth per TeraFlop of compute power, which is below the generally accepted limit required for a well-balanced system [8] [16]. The result is that today's limited I/O bandwidth is choking the capabilities of modern supercomputers, specifically in terms of limiting their working sets and making fault tolerance techniques, such as checkpointing, prohibitively expensive. This paper presents an alternative system design oriented on using node-local storage to improve aggregate system I/O bandwidth. We focus on the checkpointing use-case and present an experimental evaluation of SCR, a new checkpointing library that makes use of node-local storage to significantly improve the performance of checkpointing on large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching 700GB/s on 8,752 processors. Our results scale such that we expect a similarly structured system consisting of 12,500 processors to achieve aggregate I/O bandwidth of 1 TB/s.

  15. 48 CFR 1404.805 - Disposal of contract files.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Disposal of contract files. 1404.805 Section 1404.805 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.805 Disposal of contract files. Disposition of files shall...

  16. 48 CFR 1404.805 - Disposal of contract files.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Disposal of contract files. 1404.805 Section 1404.805 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.805 Disposal of contract files. Disposition of files shall...

  17. 48 CFR 1404.805 - Disposal of contract files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Disposal of contract files. 1404.805 Section 1404.805 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.805 Disposal of contract files. Disposition of files shall...

  18. 48 CFR 1404.805 - Disposal of contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Disposal of contract files. 1404.805 Section 1404.805 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR GENERAL ADMINISTRATIVE MATTERS Contract Files 1404.805 Disposal of contract files. Disposition of files shall...

  19. 47 CFR 1.10006 - Is electronic filing mandatory?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Is electronic filing mandatory? 1.10006 Section... International Bureau Filing System § 1.10006 Is electronic filing mandatory? Electronic filing is mandatory for... System (IBFS) form is available. Applications for which an electronic form is not available must be...

  20. Microleakage under orthodontic brackets bonded with different adhesive systems

    PubMed Central

    Alkis, Huseyin; Turkkahraman, Hakan; Adanir, Necdet

    2015-01-01

    Objective: This in vitro study aimed to compare the microleakage of orthodontic brackets between enamel-adhesive and adhesive-bracket interfaces at the occlusal and gingival margins bonded with different adhesive systems. Materials and Methods: A total of 144 human maxillary premolar teeth extracted for orthodontic reasons was randomly divided into four groups. Each group was then further divided into three sub-groups. Three total-etching bonding systems (Transbond XT, Greengloo and Kurasper F), three one-step self-etching bonding systems (Transbond Plus SEP, Bond Force and Clearfil S3), three two-step self-etching bonding systems (Clearfil SE Bond, Clearfil Protectbond and Clearfil Liner Bond), and three self-adhesive resin cements (Maxcem Elite, Relyx U 100 and Clearfil SA Cement) were used to bond the brackets to the teeth. After bonding, all teeth were sealed with nail varnish and stained with 0.5% basic fuchsine for 24 h. All samples were sectioned and examined under a stereomicroscope to score for microleakage at the adhesive–enamel and adhesive–bracket interfaces from both occlusal and gingival margins. Statistical Analysis Used: Statistical analyses were performed with Kruskal–Wallis and Wilcoxon signed-rank tests. Results: The results indicate no statistically significant differences between the microleakage scores of the adhesives; microleakage was detected in all groups. Comparison of the average values of the microleakage scores in the enamel–adhesive and adhesive–bracket interfaces indicated statistically significant differences (P < 0.05). The amount of the microleakage was higher at the enamel–adhesive interface than at the bracket-adhesive interface. Conclusions: All of the brackets exhibited some amount of microleakage. This result means that microleakage does not depend on the type of adhesive used. PMID:25713494

  1. Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O

    SciTech Connect

    Bronevetsky, G; Moody, A

    2009-08-18

    In the race to PetaFLOP-speed supercomputing systems, the increase in computational capability has been accompanied by corresponding increases in CPU count, total RAM, and storage capacity. However, a proportional increase in storage bandwidth has lagged behind. In order to improve system reliability and to reduce maintenance effort for modern large-scale systems, system designers have opted to remove node-local storage from the compute nodes. Today's multi-TeraFLOP supercomputers are typically attached to parallel file systems that provide only tens of GBs/s of I/O bandwidth. As a result, such machines have access to much less than 1GB/s of I/O bandwidth per TeraFLOP of compute power, which is below the generally accepted limit required for a well-balanced system. In a many ways, the current I/O bottleneck limits the capabilities of modern supercomputers, specifically in terms of limiting their working sets and restricting fault tolerance techniques, which become critical on systems consisting of tens of thousands of components. This paper resolves the dilemma between high performance and high reliability by presenting an alternative system design which makes use of node-local storage to improve aggregate system I/O bandwidth. In this work, we focus on the checkpointing use-case and present an experimental evaluation of the Scalable Checkpoint/Restart (SCR) library, a new adaptive checkpointing library that uses node-local storage to significantly improve the checkpointing performance of large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching a measured 700GB/s of aggregate bandwidth on 8,752 processors and an estimated 1TB/s for a similarly structured machine of 12,500 processors. This corresponds to a speedup of over 70x compared to the bandwidth provided by the 10GB/s parallel file system the cluster uses. Further, SCR can adapt to an environment in which there is wide variation in performance or capacity among the individual node-local storage elements.

  2. Superfund Public Information System (SPIS), June 1998 (on CD-ROM). Data file

    SciTech Connect

    1998-06-01

    The Superfund Public Information System (SPIS) on CD-ROM contains Superfund data for the United States Environmental Protection Agency. The Superfund data is a collection of four databases, CERCLIS, Archive (NFRAP), RODS, and NPL Sites. Descriptions of these databases and CD contents are listed below. The FolioViews browse and retrieval engine is used as a graphical interface to the data. Users can access simple queries and can do complex searching on key words or fields. In addition, context sensitive help, a Superfund process overview, and an integrated data dictionary are available. RODS is the Records Of Decision System. RODS is used to track site clean-ups under the Superfund program to justify the type of treatment chosen at each site. RODS contains information on technology justification, site history, community participation, enforcement activities, site characteristics, scope and role of response action, and remedy. Explanation of Significant Differences (ESDs) are also available on the CD. CERCLIS is the Comprehensive Environmental Response, Compensation, and Liability Information System. It is the official repository for all Superfund site and incident data. It contains comprehensive information on hazardous waste sites, site inspections, preliminary assessments, and remedial status. The system is sponsored by the EPA`s Office of Emergency and Remedial Response, Information Management Center. Archive (NFRAP) consists of hazardous waste sites that have no further remedial action planned; only basic identifying information is provided for archive sites. The sites found in the Archive database were originally in the CERCLIS database, but were removed beginning in the fall of 1995. NPL sites (available online) are fact sheets that describe the location and history of Superfund sites. Included are descriptions of the most recent activities and past actions at the sites that have contributed to the contamination. Population estimates, land usages, and nearby resources give background on the local setting surrounding a site.

  3. 75 FR 38805 - Filing Via the Internet; Electronic Tariff Filings Notice of Display of Time on Commission's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...Electronic Tariff Filings Notice of Display of Time on Commission's Electronic Filing System...display on its electronic filing system the time used by the Commission to mark officially the time that eFilings and eTariff submissions are...

  4. Computational Hemodynamic Simulation of Human Circulatory System under Altered Gravity

    NASA Technical Reports Server (NTRS)

    Kim. Chang Sung; Kiris, Cetin; Kwak, Dochan

    2003-01-01

    A computational hemodynamics approach is presented to simulate the blood flow through the human circulatory system under altered gravity conditions. Numerical techniques relevant to hemodynamics issues are introduced to non-Newtonian modeling for flow characteristics governed by red blood cells, distensible wall motion due to the heart pulse, and capillary bed modeling for outflow boundary conditions. Gravitational body force terms are added to the Navier-Stokes equations to study the effects of gravity on internal flows. Six-type gravity benchmark problems are originally presented to provide the fundamental understanding of gravitational effects on the human circulatory system. For code validation, computed results are compared with steady and unsteady experimental data for non-Newtonian flows in a carotid bifurcation model and a curved circular tube, respectively. This computational approach is then applied to the blood circulation in the human brain as a target problem. A three-dimensional, idealized Circle of Willis configuration is developed with minor arteries truncated based on anatomical data. Demonstrated is not only the mechanism of the collateral circulation but also the effects of gravity on the distensible wall motion and resultant flow patterns.

  5. Machine-readable data files from the Madison Limestone and northern Great Plains regional aquifer system analysis projects, Montana, Nebraska, North Dakota, South Dakota, and Wyoming

    USGS Publications Warehouse

    Downey, J.S.

    1982-01-01

    Lists of machine-readable data files were developed for the Madison Limestone and Northern Great Plains Regional Aquifer System Analysis (RASA) projects. They are stored on magnetic tape and available from the U.S. Geological Survey. Record format, file content, and size are given for: (1) Drill-stem-test data for Paleozoic and Mesozoic formations, (2) geologic data from the Madison Limestone project, (3) data sets used in the regional simulation model, (4) head data for the Lower and Upper Cretaceous aquifers, and (5) geologic data for Mesozoic formations of the Northern Great Plains. (USGS)

  6. Machine-readable files developed for the High Plains Regional Aquifer-System analysis in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming

    USGS Publications Warehouse

    Ferrigno, C.F.

    1986-01-01

    Machine-readable files were developed for the High Plains Regional Aquifer-System Analysis project are stored on two magnetic tapes available from the U.S. Geological Survey. The first tape contains computer programs that were used to prepare, store, retrieve, organize, and preserve the areal interpretive data collected by the project staff. The second tape contains 134 data files that can be divided into five general classes: (1) Aquifer geometry data, (2) aquifer and water characteristics , (3) water levels, (4) climatological data, and (5) land use and water use data. (Author 's abstract)

  7. File concepts for parallel I/O

    NASA Technical Reports Server (NTRS)

    Crockett, Thomas W.

    1989-01-01

    The subject of input/output (I/O) was often neglected in the design of parallel computer systems, although for many problems I/O rates will limit the speedup attainable. The I/O problem is addressed by considering the role of files in parallel systems. The notion of parallel files is introduced. Parallel files provide for concurrent access by multiple processes, and utilize parallelism in the I/O system to improve performance. Parallel files can also be used conventionally by sequential programs. A set of standard parallel file organizations is proposed, organizations are suggested, using multiple storage devices. Problem areas are also identified and discussed.

  8. Transferring Files Between the Deep Impact Spacecrafts and the Ground Data System Using the CCSDS File Delivery Protocol (CFDP): A Case Study

    NASA Technical Reports Server (NTRS)

    Sanders, Felicia A.; Jones, Grailing, Jr.; Levesque, Michael

    2006-01-01

    The CCSDS File Delivery Protocol (CFDP) Standard could reshape ground support architectures by enabling applications to communicate over the space link using reliable-symmetric transport services. JPL utilized the CFDP standard to support the Deep Impact Mission. The architecture was based on layering the CFDP applications on top of the CCSDS Space Link Extension Services for data transport from the mission control centers to the ground stations. On July 4, 2005 at 1:52 A.M. EDT, the Deep Impact impactor successfully collided with comet Tempel 1. During the final 48 hours prior to impact, over 300 files were uplinked to the spacecraft, while over 6 thousand files were downlinked from the spacecraft using the CFDP. This paper uses the Deep Impact Mission as a case study in a discussion of the CFDP architecture, Deep Impact Mission requirements, and design for integrating the CFDP into the JPL deep space support services. Issues and recommendations for future missions using CFDP are also provided.

  9. 20 CFR 30.101 - In general, how is a survivor's claim filed?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.101 In general, how is a survivor's claim filed?...

  10. 20 CFR 30.101 - In general, how is a survivor's claim filed?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.101 In general, how is a survivor's claim filed?...

  11. 20 CFR 30.101 - In general, how is a survivor's claim filed?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.101 In general, how is a survivor's claim filed?...

  12. 20 CFR 30.101 - In general, how is a survivor's claim filed?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.101 In general, how is a survivor's claim filed?...

  13. 20 CFR 30.101 - In general, how is a survivor's claim filed?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...COMPENSATION PROGRAM ACT OF 2000, AS AMENDED Filing Claims; Evidence and Burden of Proof; Special Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.101 In general, how is a survivor's claim filed?...

  14. Compress Your Files

    ERIC Educational Resources Information Center

    Branzburg, Jeffrey

    2005-01-01

    File compression enables data to be squeezed together, greatly reducing file size. Why would someone want to do this? Reducing file size enables the sending and receiving of files over the Internet more quickly, the ability to store more files on the hard drive, and the ability pack many related files into one archive (for example, all files

  15. The nature of the working memory system underlying language processing and its relationship to the long-term memory system

    E-print Network

    Fedorenko, Evelina Georgievna

    2007-01-01

    This thesis examines two questions concerning the working memory system underlying language processing: (1) To what extent is the working memory system underlying language processing domain-specific? and (2) What is the ...

  16. Comparative Analysis of Canal Centering Ability of Different Single File Systems Using Cone Beam Computed Tomography- An In-Vitro Study

    PubMed Central

    Agarwal, Jatin; Jain, Pradeep; Chandra, Anil

    2015-01-01

    Background The ability of an endodontic instrument to remain centered in the root canal system is one of the most important characteristic influencing the clinical performance of a particular file system. Thus, it is important to assess the canal centering ability of newly introduced single file systems before they can be considered a viable replacement of full-sequence rotary file systems. Aim The aim of the study was to compare the canal transportation, centering ability, and time taken for preparation of curved root canals after instrumentation with single file systems One Shape and Wave One, using cone-beam computed tomography (CBCT). Materials and Methods Sixty mesiobuccal canals of mandibular molars with an angle of curvature ranging from 20o to 35o were divided into three groups of 20 samples each: ProTaper PT (group I) – full-sequence rotary control group, OneShape OS (group II)- single file continuous rotation, WaveOne WO – single file reciprocal motion (group III). Pre instrumentation and post instrumentation three-dimensional CBCT images were obtained from root cross-sections at 3mm, 6mm and 9mm from the apex. Scanned images were then accessed to determine canal transportation and centering ability. The data collected were evaluated using one-way analysis of variance (ANOVA) with Tukey’s honestly significant difference test. Results It was observed that there were no differences in the magnitude of transportation between the rotary instruments (p >0.05) at both 3mm as well as 6mm from the apex. At 9 mm from the apex, Group I PT showed significantly higher mean canal transportation and lower centering ability (0.19±0.08 and 0.39±0.16), as compared to Group II OS (0.12±0.07 and 0.54±0.24) and Group III WO (0.13±0.06 and 0.55±0.18) while the differences between OS and WO were not statistically significant Conclusion It was concluded that there was minor difference between the tested groups. Single file systems demonstrated average canal transportation and centering ability comparable to full sequence Protaper system in curved root canals. PMID:26155551

  17. Inverted File Compression through Document Identifier Reassignment.

    ERIC Educational Resources Information Center

    Shieh, Wann-Yun; Chen, Tien-Fu; Shann, Jean Jyh-Jiun; Chung, Chung-Ping

    2003-01-01

    Discusses the use of inverted files in information retrieval systems and proposes a document identifier reassignment method to reduce the average gap values in an inverted file. Highlights include the d-gap technique; document similarity; heuristic algorithms; file compression; and performance evaluation from a simulation environment. (LRW)

  18. 47 CFR 1.1704 - Station files.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false Station files. 1.1704 Section 1.1704... Operations and Licensing System (COALS) § 1.1704 Station files. Applications, notifications, correspondence... Reference Room. These files constitute the official records for these stations and supersede any...

  19. 21 CFR 820.198 - Complaint files.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Complaint files. 820.198 Section 820.198 Food and... QUALITY SYSTEM REGULATION Records § 820.198 Complaint files. (a) Each manufacturer shall maintain complaint files. Each manufacturer shall establish and maintain procedures for receiving, reviewing,...

  20. 47 CFR 1.1704 - Station files.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 1 2013-10-01 2013-10-01 false Station files. 1.1704 Section 1.1704... Operations and Licensing System (COALS) § 1.1704 Station files. Applications, notifications, correspondence... Reference Room. These files constitute the official records for these stations and supersede any...