Science.gov

Sample records for underlying file system

  1. 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.

  2. 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.

  3. Virtual file system for PSDS

    NASA Technical Reports Server (NTRS)

    Runnels, Tyson D.

    1993-01-01

    This is a case study. It deals with the use of a 'virtual file system' (VFS) for Boeing's UNIX-based Product Standards Data System (PSDS). One of the objectives of PSDS is to store digital standards documents. The file-storage requirements are that the files must be rapidly accessible, stored for long periods of time - as though they were paper, protected from disaster, and accumulative to about 80 billion characters (80 gigabytes). This volume of data will be approached in the first two years of the project's operation. The approach chosen is to install a hierarchical file migration system using optical disk cartridges. Files are migrated from high-performance media to lower performance optical media based on a least-frequency-used algorithm. The optical media are less expensive per character stored and are removable. Vital statistics about the removable optical disk cartridges are maintained in a database. The assembly of hardware and software acts as a single virtual file system transparent to the PSDS user. The files are copied to 'backup-and-recover' media whose vital statistics are also stored in the database. Seventeen months into operation, PSDS is storing 49 gigabytes. A number of operational and performance problems were overcome. Costs are under control. New and/or alternative uses for the VFS are being considered.

  4. 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.

  5. Secure Distributed File Systems

    DTIC Science & Technology

    1994-09-01

    practicality and applicability of one such system, Trusted Ficus File System ( TRUFFLES ), in the DoD infrastructure. Integrated into this research are...discussions of Privacy Enhanced Mail (PEM), which is currently an integral part of the TRUFFLES implementation. This thesis concludes with a discussion of the...actual installation of a PEM reference implementation, and future requirements for the TRUFFLES installation at the Naval Postgraduate School. 14

  6. 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

  7. Large File System Backup: NERSC Global File System Experience

    SciTech Connect

    Mokhtarani, Akbar; Andrews, Matthew; Hick, Jason; Kramer, William

    2008-10-23

    NERSC's Global File system (NGF), accessible from all compute systems at NERSC, holds files and data from many scientific projects. A full backup of this file system to our High Performance Storage System (HPSS) is performed periodically. Disk storage usage by projects at NERSC has grown seven fold over a two year period, from ~;;20TB in June 2006 to ~;;140 TB in June 2008. The latest full backup took about 13 days and more than 200 T10k tape cartridges (.5 TB capacity). Petabyte file systems are becoming a reality in the next few years and the existing utilities are already strained in handling backup tasks.

  8. In Search of an API for Scalable File Systems: Under the Table or Above it?

    DTIC Science & Technology

    2009-06-01

    support distributed data processing enabled by the Hadoop/ MapReduce style of parallel programming frameworks. And second, we argue for an abstraction...computing community are routinely handling terabytes to petabytes of data [24]. This preponderance of data has fueled the development of data - intensive ...scal- able computing (DISC) systems that manage, process and store massive data -sets in a distributed manner. For example, Google and Yahoo have built

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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

  14. 19 CFR 191.0a - Claims filed under NAFTA.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 2 2014-04-01 2014-04-01 false Claims filed under NAFTA. 191.0a Section 191.0a Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK § 191.0a Claims filed under NAFTA. Claims for drawback filed under...

  15. 19 CFR 191.0a - Claims filed under NAFTA.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Claims filed under NAFTA. 191.0a Section 191.0a Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK § 191.0a Claims filed under NAFTA. Claims for drawback filed under...

  16. 19 CFR 191.0a - Claims filed under NAFTA.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 2 2012-04-01 2012-04-01 false Claims filed under NAFTA. 191.0a Section 191.0a Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK § 191.0a Claims filed under NAFTA. Claims for drawback filed under...

  17. 19 CFR 191.0a - Claims filed under NAFTA.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Claims filed under NAFTA. 191.0a Section 191.0a Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK § 191.0a Claims filed under NAFTA. Claims for drawback filed under...

  18. 19 CFR 191.0a - Claims filed under NAFTA.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Claims filed under NAFTA. 191.0a Section 191.0a Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK § 191.0a Claims filed under NAFTA. Claims for drawback filed under...

  19. 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.

  20. The Future of the Andrew File System

    ScienceCinema

    None

    2016-07-12

    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.

  1. 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)…

  2. A Filing System for Medical Literature

    PubMed Central

    Cumming, Millie

    1988-01-01

    The author reviews the types of systems available for personal literature files and makes specific recommendations for filing systems for family physicians. A personal filing system can be an integral part of family practice, and need not require time out of proportion to the worth of the system. Because it is a personal system, different types will suit different users; some systems, however, are more reliable than others for use in family practice. (Can Fam Physician 1988; 34:425-433.) PMID:21253062

  3. 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.

  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

  6. 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.

  7. 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.

  8. Pastime--A System for File Compression.

    ERIC Educational Resources Information Center

    Hultgren, Jan; Larsson, Rolf

    An interactive search and editing system, 3RIP, is being developed at the library of the Royal Institute of Technology in Stockholm for large files of textual and numeric data. A substantial part (on the order of 10-E9 characters) of the primary file of the search system will consist of bibliographic references from a wide range of sources. If the…

  9. 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.

  10. 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).

  11. 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.

  12. [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.

  13. Secure Mobile Distributed File System (MDFS)

    DTIC Science & Technology

    2011-03-01

    NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS SECURE MOBILE DISTRIBUTED FILE SYSTEM ( MDFS ) by Scott Huchton March 2011 Thesis Co-Advisors...Distributed File System ( MDFS ) Scott Huchton Naval Postgraduate School Monterey, CA 93943 Department of the Navy Approved for public release...demonstrate a functional version of MDFS on Android hardware. Due to the device’s limited resources, there are some issues that must be explored before MDFS

  14. Performance of the IBM General Parallel File System

    SciTech Connect

    Jones, T.; Koniges, A.; Yates, R.K.

    1999-09-27

    Experimental performance analysis is a necessary first step in input/output software tuning and real-time environment code performance prediction. We measure the performance and scalability of IBM's General Parallel File System (GPFS) under a variety of conditions. The measurements are based on a set of benchmark codes that allow us to vary block sizes, access patterns, etc., and to measure aggregate throughput rates. We use the data to give performance recommendations for application development and as a guide to the improvement of parallel file systems.

  15. 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.

  16. 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.

  17. 47 CFR 4.2 - Availability of reports filed under this part.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Availability of reports filed under this part. 4.2 Section 4.2 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL DISRUPTIONS TO COMMUNICATIONS General § 4.2 Availability of reports filed under this part. Reports filed under this part will...

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

    DOE PAGES

    Ding, Wei; Zhang, Yuanrui; Kandemir, Mahmut; ...

    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

  19. 75 FR 37430 - American Transmission Systems, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-29

    ... Federal Energy Regulatory Commission American Transmission Systems, Inc.; Notice of Filing June 21, 2010. Take notice that on February 16, 2010, American Transmission Systems, Inc. filed a compliance filing... 17, 2009 Order Addressing RTO Realignment Request and Complaint, American Transmission Sys.,...

  20. Electronic Document Management Using Inverted Files System

    NASA Astrophysics Data System (ADS)

    Suhartono, Derwin; Setiawan, Erwin; Irwanto, Djon

    2014-03-01

    The amount of documents increases so fast. Those documents exist not only in a paper based but also in an electronic based. It can be seen from the data sample taken by the SpringerLink publisher in 2010, which showed an increase in the number of digital document collections from 2003 to mid of 2010. Then, how to manage them well becomes an important need. This paper describes a new method in managing documents called as inverted files system. Related with the electronic based document, the inverted files system will closely used in term of its usage to document so that it can be searched over the Internet using the Search Engine. It can improve document search mechanism and document save mechanism.

  1. 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.

  2. Bridging the gap between parallel file systems and local file systems : a case study with PVFS.

    SciTech Connect

    Gu, P.; Wang, J.; Ross, R.; Mathematics and Computer Science; Univ. of Central Florida

    2008-09-01

    Parallel I/O plays an increasingly important role in today's data intensive computing applications. While much attention has been paid to parallel read performance, most of this work has focused on the parallel file system, middleware, or application layers, ignoring the potential for improvement through more effective use of local storage. In this paper, we present the design and implementation of segment-structured on-disk data grouping and prefetching (SOGP), a technique that leverages additional local storage to boost the local data read performance for parallel file systems, especially for those applications with partially overlapped access patterns. Parallel virtual file system (PVFS) is chosen as an example. Our experiments show that an SOGP-enhanced PVFS prototype system can outperform a traditional Linux-Ext3-based PVFS for many applications and benchmarks, in some tests by as much as 230% in terms of I/O bandwidth.

  3. Transparency in Distributed File Systems

    DTIC Science & Technology

    1989-01-01

    and may be accessed and updated even if the primary is unavailable. I IBIS provides complete location transparency . Because of this, the IBIS...lack of actual location information in names allows his to be done transparently . Updates to replicated information are propagated using the mail system...isn’t possible to update the directory. In the case of migation by UID, a forwarding address with a reference count equal to i the link count of the

  4. 19 CFR 191.176 - Procedures for claims filed under 19 U.S.C. 1313(p).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Procedures for claims filed under 19 U.S.C. 1313(p... § 191.176 Procedures for claims filed under 19 U.S.C. 1313(p). (a) Applicability. The general procedures for filing drawback claims shall be applicable to claims filed under 19 U.S.C. 1313(p)...

  5. 19 CFR 191.176 - Procedures for claims filed under 19 U.S.C. 1313(p).

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 2 2014-04-01 2014-04-01 false Procedures for claims filed under 19 U.S.C. 1313(p... § 191.176 Procedures for claims filed under 19 U.S.C. 1313(p). (a) Applicability. The general procedures for filing drawback claims shall be applicable to claims filed under 19 U.S.C. 1313(p)...

  6. 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.

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

    SciTech Connect

    WANG, FEIYI

    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.

  8. INFeRS: Interactive Numeric Files Retrieval System. Final Report.

    ERIC Educational Resources Information Center

    Chiang, Katherine; And Others

    In 1988 Mann Library at Cornell University proposed to develop a computer system that would support interactive access to significant electronic files in agriculture and the life sciences. This system was titled the Interactive Numeric Files Retrieval System (INFeRS). This report describes how project goals were met and it presents the project's…

  9. Silvabase: A flexible data file management system

    NASA Technical Reports Server (NTRS)

    Lambing, Steven J.; Reynolds, Sandra J.

    1991-01-01

    The need for a more flexible and efficient data file management system for mission planning in the Mission Operations Laboratory (EO) at MSFC has spawned the development of Silvabase. Silvabase is a new data file structure based on a B+ tree data structure. This data organization allows for efficient forward and backward sequential reads, random searches, and appends to existing data. It also provides random insertions and deletions with reasonable efficiency, utilization of storage space well but not at the expense of speed, and performance of these functions on a large volume of data. Mission planners required that some data be keyed and manipulated in ways not found in a commercial product. Mission planning software is currently being converted to use Silvabase in the Spacelab and Space Station Mission Planning Systems. Silvabase runs on a Digital Equipment Corporation's popular VAX/VMS computers in VAX Fortran. Silvabase has unique features involving time histories and intervals such as in operations research. Because of its flexibility and unique capabilities, Silvabase could be used in almost any government or commercial application that requires efficient reads, searches, and appends in medium to large amounts of almost any kind of data.

  10. Stochastic Petri net analysis of a replicated file system

    NASA Technical Reports Server (NTRS)

    Bechta Dugan, Joanne; Ciardo, Gianfranco

    1989-01-01

    A stochastic Petri-net model of a replicated file system is presented for a distributed environment where replicated files reside on different hosts and a voting algorithm is used to maintain consistency. Witnesses, which simply record the status of the file but contain no data, can be used in addition to or in place of files to reduce overhead. A model sufficiently detailed to include file status (current or out-of-date), as well as failure and repair of hosts where copies or witnesses reside, is presented. The number of copies and witnesses is a parameter of the model. Two different majority protocols are examined, one where a majority of all copies and witnesses is necessary to form a quorum, and the other where only a majority of the copies and witnesses on operational hosts is needed. The latter, known as adaptive voting, is shown to increase file availability in most cases.

  11. 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.

  12. 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.

  13. 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

  14. 43 CFR 3809.313 - Under what circumstances may I not begin operations 15 calendar days after filing my notice?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... operations 15 calendar days after filing my notice? 3809.313 Section 3809.313 Public Lands: Interior... Conducted Under Notices § 3809.313 Under what circumstances may I not begin operations 15 calendar days after filing my notice? To see when you may not begin operations 15 calendar days after filing...

  15. 43 CFR 3809.313 - Under what circumstances may I not begin operations 15 calendar days after filing my notice?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... operations 15 calendar days after filing my notice? 3809.313 Section 3809.313 Public Lands: Interior... Conducted Under Notices § 3809.313 Under what circumstances may I not begin operations 15 calendar days after filing my notice? To see when you may not begin operations 15 calendar days after filing...

  16. 43 CFR 3809.313 - Under what circumstances may I not begin operations 15 calendar days after filing my notice?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... operations 15 calendar days after filing my notice? 3809.313 Section 3809.313 Public Lands: Interior... Conducted Under Notices § 3809.313 Under what circumstances may I not begin operations 15 calendar days after filing my notice? To see when you may not begin operations 15 calendar days after filing...

  17. Nodal aberration theory for wild-filed asymmetric optical systems

    NASA Astrophysics Data System (ADS)

    Chen, Yang; Cheng, Xuemin; Hao, Qun

    2016-10-01

    Nodal Aberration Theory (NAT) was used to calculate the zero field position in Full Field Display (FFD) for the given aberration term. Aiming at wide-filed non-rotational symmetric decentered optical systems, we have presented the nodal geography behavior of the family of third-order and fifth-order aberrations. Meanwhile, we have calculated the wavefront aberration expressions when one optical element in the system is tilted, which was not at the entrance pupil. By using a three-piece-cellphone lens example in optical design software CodeV, the nodal geography is testified under several situations; and the wavefront aberrations are calculated when the optical element is tilted. The properties of the nodal aberrations are analyzed by using Fringe Zernike coefficients, which are directly related with the wavefront aberration terms and usually obtained by real ray trace and wavefront surface fitting.

  18. 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.

  19. Computer Forensics Tutorial Disk File Systems (FAT16, FAT32, NTFS)

    DTIC Science & Technology

    2012-08-28

    systems, how long the file name suffix can be. A file system also includes a format for specifying the path to a file through the structure of...clusters into one or more lists (as is done in Unix file systems). Instead, the FAT has to be scanned as an array to find free clusters, which can lead to

  20. 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.

  1. 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. (a) Criminal Law Enforcement. (1) Exemption. Under the authority... contains information pertaining to the enforcement of criminal laws. (2) Reasons for exemption. The reasons... free flow of information in a criminal law enforcement inquiry. (v) The requirements of subsections...

  2. 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. (a) Criminal Law Enforcement. (1) Exemption. Under the authority... contains information pertaining to the enforcement of criminal laws. (2) Reasons for exemption. The reasons... the relevance of specific information might be established only after considerable analysis and as...

  3. JavaFIRE: A Replica and File System for Grids

    NASA Astrophysics Data System (ADS)

    Petek, Marko; da Silva Gomes, Diego; Resin Geyer, Claudio Fernando; Santoro, Alberto; Gowdy, Stephen

    2012-12-01

    The work is focused on the creation of a replica and file transfers system for Computational Grids inspired on the needs of the High Energy Physics (HEP). Due to the high volume of data created by the HEP experiments, an efficient file and dataset replica system may play an important role on the computing model. Data replica systems allow the creation of copies, distributed between the different storage elements on the Grid. In the HEP context, the data files are basically immutable. This eases the task of the replica system, because given sufficient local storage resources any dataset just needs to be replicated to a particular site once. Concurrent with the advent of computational Grids, another important theme in the distributed systems area that has also seen some significant interest is that of peer-to-peer networks (p2p). P2p networks are an important and evolving mechanism that eases the use of distributed computing and storage resources by end users. One common technique to achieve faster file download from possibly overloaded storage elements over congested networks is to split the files into smaller pieces. This way, each piece can be transferred from a different replica, in parallel or not, optimizing the moments when the network conditions are better suited to the transfer. The main tasks achieved by the system are: the creation of replicas, the development of a system for replicas transfer (RFT) and for replicas location (RLS) with a different architecture that the one provided by Globus and the development of a system for file transfer in pieces on computational grids with interfaces for several storage elements. The RLS uses a p2p overlay based on the Kademlia algorithm.

  4. 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.

  5. 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.

  6. A novel glass slide filing system for pathology slides.

    PubMed

    Tsai, Steve; Kartono, Francisca; Shitabata, Paul K

    2007-07-01

    The availability of a collection of microscope glass slides for review is essential in the study and practice of pathology. A common problem facing many pathologists is the lack of a well-organized filing system. We present a novel system that would be easily accessible, informative, protective, and portable.

  7. 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.

  8. Storing files in a parallel computing system based on user or application specification

    DOEpatents

    Faibish, Sorin; Bent, John M.; Nick, Jeffrey M.; Grider, Gary; Torres, Aaron

    2016-03-29

    Techniques are provided for storing files in a parallel computing system based on a user-specification. A plurality of files generated by a distributed application in a parallel computing system are stored by obtaining a specification from the distributed application indicating how the plurality of files should be stored; and storing one or more of the plurality of files in one or more storage nodes of a multi-tier storage system based on the specification. The plurality of files comprise a plurality of complete files and/or a plurality of sub-files. The specification can optionally be processed by a daemon executing on one or more nodes in a multi-tier storage system. The specification indicates how the plurality of files should be stored, for example, identifying one or more storage nodes where the plurality of files should be stored.

  9. Screw-in forces during instrumentation by various file systems

    PubMed Central

    2016-01-01

    Objectives The purpose of this study was to compare the maximum screw-in forces generated during the movement of various Nickel-Titanium (NiTi) file systems. Materials and Methods Forty simulated canals in resin blocks were randomly divided into 4 groups for the following instruments: Mtwo size 25/0.07 (MTW, VDW GmbH), Reciproc R25 (RPR, VDW GmbH), ProTaper Universal F2 (PTU, Dentsply Maillefer), and ProTaper Next X2 (PTN, Dentsply Maillefer, n = 10). All the artificial canals were prepared to obtain a standardized lumen by using ProTaper Universal F1. Screw-in forces were measured using a custom-made experimental device (AEndoS-k, DMJ system) during instrumentation with each NiTi file system using the designated movement. The rotation speed was set at 350 rpm with an automatic 4 mm pecking motion at a speed of 1 mm/sec. The pecking depth was increased by 1 mm for each pecking motion until the file reach the working length. Forces were recorded during file movement, and the maximum force was extracted from the data. Maximum screw-in forces were analyzed by one-way ANOVA and Tukey's post hoc comparison at a significance level of 95%. Results Reciproc and ProTaper Universal files generated the highest maximum screw-in forces among all the instruments while M-two and ProTaper Next showed the lowest (p < 0.05). Conclusions Geometrical differences rather than shaping motion and alloys may affect the screw-in force during canal instrumentation. To reduce screw-in forces, the use of NiTi files with smaller cross-sectional area for higher flexibility is recommended. PMID:27847752

  10. Novel Filing Systems Applicable to an Automated Office: A State-of-the-Art Study.

    ERIC Educational Resources Information Center

    Restorick, F. Mark

    1986-01-01

    Examines novel computer filing systems which have particular application to office information storage and retrieval requirements. A variety of filing systems and their major characteristics are reviewed, ranging from network-based file servers to digital image storage and retrieval systems. Desirable characteristics of a modern electronic office…

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

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false How must documents be filed and served under this subpart? 45.70 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...

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

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 43 Public Lands: Interior 1 2013-10-01 2013-10-01 false How must documents be filed and served under this subpart? 45.70 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...

  13. 43 CFR 45.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 43 Public Lands: Interior 1 2012-10-01 2011-10-01 true How must documents be filed and served under this subpart? 45.70 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...

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

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 43 Public Lands: Interior 1 2014-10-01 2014-10-01 false How must documents be filed and served under this subpart? 45.70 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...

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

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false How must documents be filed and served under this subpart? 45.70 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...

  16. 50 CFR 221.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 10 2012-10-01 2012-10-01 false How must documents be filed and served under this subpart? 221.70 Section 221.70 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS PRESCRIPTIONS...

  17. 50 CFR 221.70 - How must documents be filed and served under this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 50 Wildlife and Fisheries 9 2011-10-01 2011-10-01 false How must documents be filed and served under this subpart? 221.70 Section 221.70 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS PRESCRIPTIONS...

  18. 34 CFR 222.154 - How must written submissions under this subpart be filed?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false How must written submissions under this subpart be filed? 222.154 Section 222.154 Education Regulations of the Offices of the Department of Education OFFICE OF ELEMENTARY AND SECONDARY EDUCATION, DEPARTMENT OF EDUCATION IMPACT AID PROGRAMS Impact...

  19. 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...

  20. Sharing lattice QCD data over a widely distributed file system

    NASA Astrophysics Data System (ADS)

    Amagasa, T.; Aoki, S.; Aoki, Y.; Aoyama, T.; Doi, T.; Fukumura, K.; Ishii, N.; Ishikawa, K.-I.; Jitsumoto, H.; Kamano, H.; Konno, Y.; Matsufuru, H.; Mikami, Y.; Miura, K.; Sato, M.; Takeda, S.; Tatebe, O.; Togawa, H.; Ukawa, A.; Ukita, N.; Watanabe, Y.; Yamazaki, T.; Yoshie, T.

    2015-12-01

    JLDG is a data-grid for the lattice QCD (LQCD) community in Japan. Several large research groups in Japan have been working on lattice QCD simulations using supercomputers distributed over distant sites. The JLDG provides such collaborations with an efficient method of data management and sharing. File servers installed on 9 sites are connected to the NII SINET VPN and are bound into a single file system with the GFarm. The file system looks the same from any sites, so that users can do analyses on a supercomputer on a site, using data generated and stored in the JLDG at a different site. We present a brief description of hardware and software of the JLDG, including a recently developed subsystem for cooperating with the HPCI shared storage, and report performance and statistics of the JLDG. As of April 2015, 15 research groups (61 users) store their daily research data of 4.7PB including replica and 68 million files in total. Number of publications for works which used the JLDG is 98. The large number of publications and recent rapid increase of disk usage convince us that the JLDG has grown up into a useful infrastructure for LQCD community in Japan.

  1. An Empirical Study of a Highly Available File System

    DTIC Science & Technology

    1994-02-01

    FACE[3). Now that serious use of such systems is feasi- of availability, since data can be updated in any network ble. it is appropriate to ask how well...crucial to the design of operation, allows continued read and write access to cached distributed file systems such as AFS[7] and Sprite 121. In data even...client from the network. This mechanism is especially valuable for mobile computing: a user may be isolated be- In this paper, we report on data

  2. 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.

  3. 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.

  4. 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

  5. 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...

  6. 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...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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...

  13. 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

    ... of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial Fuel Use Act... a coal capability self- certification to the Department of Energy (DOE) pursuant to Sec. 201(d) of... 501.60, 61. FUA and regulations thereunder require DOE to publish a notice of filing of...

  14. Official Military Personnel Files, Micrographics System Study.

    DTIC Science & Technology

    1984-01-27

    use of ammonia for duplication is reltively safe, ammonia leaks can result and can be dangerous. Ammonia fumes were detected in some installations...the sophis - tication of the system. Manual systems will utilize optical projection systems to enable users at a particular work station to view the...C. Turner , Supervisor, Special Actions Unit, OPRB, MSD Ms. M. Hill, Chief, Micrographics, OPRB, MSD Ms. C. Howard, Pre/Post Inspection Clerk, OPRB

  15. 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.

  16. 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.

  17. 75 FR 52527 - New York Independent System Operator, Inc. Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-26

    .... Take notice that on August 13, and August 16, 2010, The Independent Electricity System Operator, The... become a party must file a notice of intervention or motion to intervene, as appropriate. Such notices, motions, or protests must be filed on or before the comment date. Anyone filing a motion to intervene...

  18. ATLAS, an integrated structural analysis and design system. Volume 4: Random access file catalog

    NASA Technical Reports Server (NTRS)

    Gray, F. P., Jr. (Editor)

    1979-01-01

    A complete catalog is presented for the random access files used by the ATLAS integrated structural analysis and design system. ATLAS consists of several technical computation modules which output data matrices to corresponding random access file. A description of the matrices written on these files is contained herein.

  19. 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.

  20. Disk File Management in a Medium-Scale Time-Sharing System.

    ERIC Educational Resources Information Center

    Fitzhugh, Robert J.; Pethia, Richard D.

    The paper descibes a compact and highly efficient disk file management system responsible for the management and allocation of space on moving head disk drives in a medium-scale time-sharing system. The disk file management system is a major component of the Experimental Time-Sharing System (ETSS) developed at the Learning Research and Development…

  1. 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.

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

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... United States Patent and Trademark Office Electronic Filing System--Web (EFS-Web) Contingency Option..., Electronic Filing System--Web (EFS-Web) by providing a new contingency option when the primary portal to EFS-Web has an unscheduled outage. Previously, the entire EFS-Web system is not available to the...

  3. Requirements for LINCS File Management System. LINCS Project Document Series. LINCS #8-69.

    ERIC Educational Resources Information Center

    Rosenfeld, Samuel A.; Sable, Jerome

    The report discusses the file management requirements of a computer-based information storage and retrieval system for the Language Information Network and Clearinghouse System (LINCS). It discusses a hypothetical structure for the LINCS system, requirements of file management, long-range trends in data management technology of interest to the…

  4. 18 CFR Appendix A to Part 380 - Minimum Filing Requirements for Environmental Reports Under the Natural Gas Act

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Requirements for Environmental Reports Under the Natural Gas Act A Appendix A to Part 380 Conservation of Power... Filing Requirements for Environmental Reports Under the Natural Gas Act Environmental Reports Under the Natural Gas Act. Resource Report 1—General Project Description 1. Provide a detailed description...

  5. Ordering and single-file diffusion in colloidal systems

    NASA Astrophysics Data System (ADS)

    Herrera-Velarde, Salvador; Zamudio-Ojeda, Adalberto; Castañeda-Priego, Ramón

    2010-09-01

    The structural properties and the single-file diffusion in one-dimensional interacting colloidal systems are studied by means of Brownian dynamics simulations. We consider three types of particle interactions, namely, Weeks-Chandler-Andersen, screened Coulomb, and superparamagnetic potentials. We find that, regardless of the interaction potential, at low densities particles are distributed in a typical fluidlike structure and at higher densities or potential strengths become spatially correlated at long-distances. Particularly, our findings demonstrate that one-dimensional systems, with particles interacting repulsively, show common structural and dynamical behaviors at the boundary in which the degree of ordering changes dramatically; the main peak of the static structure factor becomes highly narrow with a height of Sc≈7, whereas the reduced mobility factor F, which is associated with the single-file diffusion at long-times or long wavelengths, reaches values F∗≈0.1. These features are analyzed and discussed in the context of a local order-disorder transition.

  6. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Employee Medical File System. 293.504 Section 293.504 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Employee Medical File System Records § 293.504... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to...

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

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Employee Medical File System. 293.504 Section 293.504 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Employee Medical File System Records § 293.504... employee medical records stipulated in § 293.511. While non-occupational/patient records pertaining to...

  8. 76 FR 31956 - High Island Offshore System, L.L.C.; Notice of Compliance Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission High Island Offshore System, L.L.C.; Notice of Compliance Filing Take notice that on May 16, 2011, High Island Offshore System, L.L.C. (HIOS) filed to comply with the...

  9. 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... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Composition of, and access to, the Employee Medical File System. 293.504 Section 293.504 Administrative Personnel OFFICE OF...

  10. 17 CFR 242.608 - Filing and amendment of national market system plans.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Filing and amendment of national market system plans. 242.608 Section 242.608 Commodity and Securities Exchanges SECURITIES AND... SECURITY FUTURES Regulation Nms-Regulation of the National Market System § 242.608 Filing and amendment...

  11. 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

    ... AGENCY Amendment of Inspector General's Operation and Reporting (IGOR) System Investigative Files (EPA-40) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: Pursuant to the provisions of the... General's Operation and Reporting (IGOR) System Investigative Files (EPA-40) to the Inspector...

  12. Parallel File System I/O Performance Testing On LANL Clusters

    SciTech Connect

    Wiens, Isaac Christian; Green, Jennifer Kathleen

    2016-08-18

    These are slides from a presentation on parallel file system I/O performance testing on LANL clusters. I/O is a known bottleneck for HPC applications. Performance optimization of I/O is often required. This summer project entailed integrating IOR under Pavilion and automating the results analysis. The slides cover the following topics: scope of the work, tools utilized, IOR-Pavilion test workflow, build script, IOR parameters, how parameters are passed to IOR, *run_ior: functionality, Python IOR-Output Parser, Splunk data format, Splunk dashboard and features, and future work.

  13. Privacy Act System of Records: Freedom of Information Act Request and Appeal File, EPA-9

    EPA Pesticide Factsheets

    Learn more about the Freedom of Information Act Request and Appeal File System, including who is covered in the system, the purpose of data collection, routine uses for the system's records, and other security procedures.

  14. Privacy Act System of Records: EPA Personnel Emergency Contact Files, EPA-44

    EPA Pesticide Factsheets

    Learn about the EPA Personnel Emergency Contact Files System, including including who is covered in the system, the purpose of data collection, routine uses for the system's records, and other security procedure.

  15. 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.

  16. Utilizing Lustre file system with dCache for CMS analysis

    NASA Astrophysics Data System (ADS)

    Wu, Y.; Kim, B.; Rodriguez, J. L.; Fu, Y.; Bourilkov, D.; Avery, P.

    2010-04-01

    This paper presents storage implementations that utilize the Lustre file system for CMS analysis with direct POSIX file access while keeping dCache as the frontend for data distribution and management. We describe two implementations that integrate dCache with Lustre and how to enable user data access without going through the dCache file read protocol. Our initial CMS analysis job measurement and transfer performance results are shown and the advantages of different implementations are briefly discussed.

  17. 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

    ... 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) All written communications made in reliance on § 230.165 are prospectuses that must be filed with...

  18. 20 CFR 10.10 - Are all documents relating to claims filed under the FECA considered confidential?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 1 2014-04-01 2012-04-01 true Are all documents relating to claims filed under the FECA considered confidential? 10.10 Section 10.10 Employees' Benefits OFFICE OF WORKERS... Freedom of Information Act and the Privacy Act of 1974 or under the routine uses provided by DOL/GOVT-1...

  19. 17 CFR 240.12b-36 - Use of financial statements filed under other acts.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... administered by the Commission are filed with a statement or report, the accountant's certificate shall be... consent of the accountant to such incorporation by reference shall be filed with the statement or...

  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.

  1. The storage system of PCM based on random access file system

    NASA Astrophysics Data System (ADS)

    Han, Wenbing; Chen, Xiaogang; Zhou, Mi; Li, Shunfen; Li, Gezi; Song, Zhitang

    2016-10-01

    Emerging memory technologies such as Phase change memory (PCM) tend to offer fast, random access to persistent storage with better scalability. It's a hot topic of academic and industrial research to establish PCM in storage hierarchy to narrow the performance gap. However, the existing file systems do not perform well with the emerging PCM storage, which access storage medium via a slow, block-based interface. In this paper, we propose a novel file system, RAFS, to bring about good performance of PCM, which is built in the embedded platform. We attach PCM chips to the memory bus and build RAFS on the physical address space. In the proposed file system, we simplify traditional system architecture to eliminate block-related operations and layers. Furthermore, we adopt memory mapping and bypassed page cache to reduce copy overhead between the process address space and storage device. XIP mechanisms are also supported in RAFS. To the best of our knowledge, we are among the first to implement file system on real PCM chips. We have analyzed and evaluated its performance with IOZONE benchmark tools. Our experimental results show that the RAFS on PCM outperforms Ext4fs on SDRAM with small record lengths. Based on DRAM, RAFS is significantly faster than Ext4fs by 18% to 250%.

  2. 43 CFR 4.1381 - Who may file; when to file; where to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file; when to file; where to file... 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...

  3. 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.

  4. 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).

  5. 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

    ... 20 Employees' Benefits 1 2014-04-01 2012-04-01 true Are all OWCP records relating to claims filed under EEOICPA considered confidential? 30.10 Section 30.10 Employees' Benefits OFFICE OF WORKERS... disclosed except as provided in the Freedom of Information Act and the Privacy Act of 1974....

  6. 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

    ... paragraph, every organization exempt from taxation under section 501(a) that is not required to file a return described in § 1.6033-2(a)(2), other than an organization described in section 401(a) or 501(d... publications issued with respect to the notification. (b) Organizations not required to submit...

  7. 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

    ... paragraph, every organization exempt from taxation under section 501(a) that is not required to file a return described in § 1.6033-2(a)(2), other than an organization described in section 401(a) or 501(d... publications issued with respect to the notification. (b) Organizations not required to submit...

  8. 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

    ... coal or another alternate fuel as a primary energy source. Pursuant to FUA in order to meet the... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial Fuel Use...

  9. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... required to file an annual information return under section 6033(a)(1) (taxable years beginning after December 31, 2006). 1.6033-6 Section 1.6033-6 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Information Returns § 1.6033-6...

  10. A resources monitoring architecture for P2P file-sharing systems

    NASA Astrophysics Data System (ADS)

    Wang, Wenxian; Chen, Xingshu; Wang, Haizhou

    2013-07-01

    Resources monitoring is an important problem of the overall efficient usage and control of P2P file-sharing systems. The resources of file-sharing systems can include all distributing servers, programs and peers. Several researches have tried to address this issue, but most of them illuminated P2P traffic characterization, identification and user behavior. Based on previous work, we present a resources monitoring architecture for P2P file-sharing systems. The monitoring architecture employs a hierarchical structure and provides systemic monitoring including resources discovery, relative information extraction and analysis, trace and location. It gives a systematic framework for file-sharing resources monitoring. And a prototype system has been developed based on the framework.

  11. NVFAT: A FAT-Compatible File System with NVRAM Write Cache for Its Metadata

    NASA Astrophysics Data System (ADS)

    Doh, In Hwan; Lee, Hyo J.; Moon, Young Je; Kim, Eunsam; Choi, Jongmoo; Lee, Donghee; Noh, Sam H.

    File systems make use of the buffer cache to enhance their performance. Traditionally, part of DRAM, which is volatile memory, is used as the buffer cache. In this paper, we consider the use of of Non-Volatile RAM (NVRAM) as a write cache for metadata of the file system in embedded systems. NVRAM is a state-of-the-art memory that provides characteristics of both non-volatility and random byte addressability. By employing NVRAM as a write cache for dirty metadata, we retain the same integrity of a file system that always synchronously writes its metadata to storage, while at the same time improving file system performance to the level of a file system that always writes asynchronously. To show quantitative results, we developed an embedded board with NVRAM and modify the VFAT file system provided in Linux 2.6.11 to accommodate the NVRAM write cache. We performed a wide range of experiments on this platform for various synthetic and realistic workloads. The results show that substantial reductions in execution time are possible from an application viewpoint. Another consequence of the write cache is its benefits at the FTL layer, leading to improved wear leveling of Flash memory and increased energy savings, which are important measures in embedded systems. From the real numbers obtained through our experiments, we show that wear leveling is improved considerably and also quantify the improvements in terms of energy.

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

    PubMed

    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.

  13. 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.

  14. 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.

  15. Impact of different file systems on the amount of apically extruded debris during endodontic retreatment

    PubMed Central

    Uzunoglu, Emel; Turker, Sevinc Aktemur

    2016-01-01

    Objective: The goal of present study was to determine the effect of different nickel–titanium file systems on the amount of apically extruded debris during endodontic retreatment: D-RaCe retreatment systems, EdgeFile XR retreatment rotary files, and Reciproc R40. Materials and Methods: Thirty-six single-rooted prepared mandibular premolar teeth were filled with Gutta-percha and AH Plus sealer. The teeth were then randomly assigned into three groups (n = 12) for retreatment. The endodontic retreatment was performed as follows: D-RaCe, EdgeFile XR, Reciproc 40. Debris extruded apically during the retreatment was collected into preweighed Eppendorf tubes. An incubator was used to store tubes at 70° C for 5 days. The initial weight was subtracted from final weight of the Eppendorf tubes to calculate the weight of the dry extruded debris for each group. The data obtained were evaluated using Welch analysis of variance and Games-Howell post-hoc tests (P < 0.05). Results: All files resulted in apical extrusion of debris. Reciproc caused significantly less debris extrusion compared to D-RaCe and EdgeFile XR (P < 0.05). Conclusions: The findings revealed that during endodontic retreatment, number, and taper of files might have an influence on the amount of apically extruded debris during endodontic retreatment. PMID:27095898

  16. Performance of the engineering analysis and data system 2 common file system

    NASA Technical Reports Server (NTRS)

    Debrunner, Linda S.

    1993-01-01

    The Engineering Analysis and Data System (EADS) was used from April 1986 to July 1993 to support large scale scientific and engineering computation (e.g. computational fluid dynamics) at Marshall Space Flight Center. The need for an updated system resulted in a RFP in June 1991, after which a contract was awarded to Cray Grumman. EADS II was installed in February 1993, and by July 1993 most users were migrated. EADS II is a network of heterogeneous computer systems supporting scientific and engineering applications. The Common File System (CFS) is a key component of this system. The CFS provides a seamless, integrated environment to the users of EADS II including both disk and tape storage. UniTree software is used to implement this hierarchical storage management system. The performance of the CFS suffered during the early months of the production system. Several of the performance problems were traced to software bugs which have been corrected. Other problems were associated with hardware. However, the use of NFS in UniTree UCFM software limits the performance of the system. The performance issues related to the CFS have led to a need to develop a greater understanding of the CFS organization. This paper will first describe the EADS II with emphasis on the CFS. Then, a discussion of mass storage systems will be presented, and methods of measuring the performance of the Common File System will be outlined. Finally, areas for further study will be identified and conclusions will be drawn.

  17. Sealing properties of different obturation systems applied over apically fractured rotary nickel-titanium files.

    PubMed

    Altundasar, Emre; Sahin, Cem; Ozcelik, Bahar; Cehreli, Zafer C

    2008-02-01

    This study investigated the sealing properties of cold laterally compacted gutta percha and Thermafil applied over different apically fractured rotary nickel-titanium files. Extracted human premolars were prepared by using ProTaper (Dentsply-Maillefer, Ballaigues, Switzerland) or ProFile (Dentsply-Maillefer) systems (n = 40 for each), after which half of the specimens in each subgroup were subjected to instrument separation at the apical level. For each rotary system, roots with and without apically separated instruments (n = 10 for each) were filled with the two obturation systems and the levels of fluid conductance were recorded. In the absence of instrument separation, the leakage of Thermafil (Dentsply Maillefer) was significantly less than that achieved with cold lateral compaction (p < 0.05), whereas Thermafil yielded similar amounts of leakage in roots prepared with the ProTaper and ProFile systems (p < 0.05). Roots with fractured ProTaper instruments displayed significantly less leakage than those filled without ProTaper fragments, regardless of the obturation technique used (p < 0.05). However, intracanal separation of ProFile instruments increased the leakage (p < 0.05), but the obturation method did not influence fluid conduction (p > 0.05). These results reveal the variability of leakage associated with apically fractured ProFile and ProTaper files and different obturation methods used.

  18. Security in the CernVM File System and the Frontier Distributed Database Caching System

    NASA Astrophysics Data System (ADS)

    Dykstra, D.; Blomer, J.

    2014-06-01

    Both the CernVM File System (CVMFS) and the Frontier Distributed Database Caching System (Frontier) distribute centrally updated data worldwide for LHC experiments using http proxy caches. Neither system provides privacy or access control on reading the data, but both control access to updates of the data and can guarantee the authenticity and integrity of the data transferred to clients over the internet. CVMFS has since its early days required digital signatures and secure hashes on all distributed data, and recently Frontier has added X.509-based authenticity and integrity checking. In this paper we detail and compare the security models of CVMFS and Frontier.

  19. Security in the CernVM File System and the Frontier Distributed Database Caching System

    SciTech Connect

    Dykstra, D.; Blomer, J.

    2014-01-01

    Both the CernVM File System (CVMFS) and the Frontier Distributed Database Caching System (Frontier) distribute centrally updated data worldwide for LHC experiments using http proxy caches. Neither system provides privacy or access control on reading the data, but both control access to updates of the data and can guarantee the authenticity and integrity of the data transferred to clients over the internet. CVMFS has since its early days required digital signatures and secure hashes on all distributed data, and recently Frontier has added X.509-based authenticity and integrity checking. In this paper we detail and compare the security models of CVMFS and Frontier.

  20. Description of data files compiled for the Central Midwest Regional Aquifer-System Analysis

    USGS Publications Warehouse

    Helgesen, John O.; Hansen, Cristi V.

    1989-01-01

    Several types of geologic and hydrologic data were collected and compiled as part of the Central Midwest Regional Aquifer-System Analysis. The study described the hydrology of Cambrian-age through Cretaceous-age rocks in all of Kansas and Nebraska and parts of eight other states. Information from both water wells and petroleum wells was obtained from numerous State, Federal, and private sources. The completeness, quality, and distribution of the data varies considerably. Most data files contain data selected to represent the regional scope of the study. The log data file contains about 850 lithologic logs and about 750 geophysical logs. The hydraulic-head data file contains about 1 ,400 measured water levels and about 2,600 values of equivalent freshwater head derived from drill-stem-test analyses. The hydrochemical data file contains about 2,900 water quality analyses. The aquifer-property data file contains about 1,050 values. In addition to site-specific data, areal information in the form of model-data arrays is available for initial hydraulic head, transmissivity, and vertical leakance. These data describe the major geohydrologic units studied in terms of a three-dimensional grid, 28 rows x 33 columns x 5 layers. Parts of the hydraulic-head, hydrochemical, and aquifer-property data files are proprietary. The fluid-withdrawal data file was developed for study use only. Most other data described herein are available on magnetic tape from the U.S. Geological Survey in Lawrence, Kansas. (USGS)

  1. The file system research based on the volume holographic data storage

    NASA Astrophysics Data System (ADS)

    Yi, Faling; Xie, Changsheng; Wu, Fei; Han, Dezhi

    2005-09-01

    The Volume Holographic Data Storage (VHDS) is an optical technology that allows one million bits of data to be written and read out in single flashes of light. To accommodate the characteristics of VHDS, this paper presents the following strategies in designing the file system based on VHDS: (1) Construct the virtual storage layer on the Holographic Storage media, which turns the storage-on-pages into the storage-on-blocks. (2) Use the two-layer structure of the directory table and the index node, and the data stored in the immediate area of the index node. This method can access the index node and the content (partial or all) of the file with an accessing operation. (3) Adopt the allocating method of the page priority in storing data--allocate the whole page to a file while the length of the file exceeds the page. In the meantime, a page is partitioned into many zones to enhance the storing utilities of VHDS. (4) To meet the three-dimension storage's need, the two-dimension Logical Block Address (LBA) is to be used, and makes the more continuity between data blocks--allocate the continuous data blocks in vertical and horizontal direction while storing data. The simulation test shows that the file system can be compatible with the existing file system, and has better stability.

  2. 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.

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

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ... month period. Incumbent Local exchange carriers serving 50,000 or fewer access lines in a given study... filings for that study area pursuant to either this section or Sec. 61.39. However, the Commission may..., including complete explanations of the bases for the estimates. (i) A cost of service study for all...

  4. 76 FR 43206 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-20

    .... (2) All statistical studies must be submitted and supported in the form prescribed in Sec. 1.363 of... lines in a given study area that are described as subset 3 carriers in Sec. 69.602 of this chapter may submit Access Tariff filings for that study area pursuant to either this section or Sec. 61.39....

  5. Effect of Instrumentation Length and Instrumentation Systems: Hand Versus Rotary Files on Apical Crack Formation – An In vitro Study

    PubMed Central

    Mahesh, MC; Bhandary, Shreetha

    2017-01-01

    Introduction Stresses generated during root canal instrumentation have been reported to cause apical cracks. The smaller, less pronounced defects like cracks can later propagate into vertical root fracture, when the tooth is subjected to repeated stresses from endodontic or restorative procedures. Aim This study evaluated occurrence of apical cracks with stainless steel hand files, rotary NiTi RaCe and K3 files at two different instrumentation lengths. Materials and Methods In the present in vitro study, 60 mandibular premolars were mounted in resin blocks with simulated periodontal ligament. Apical 3 mm of the root surfaces were exposed and stained using India ink. Preoperative images of root apices were obtained at 100x using stereomicroscope. The teeth were divided into six groups of 10 each. First two groups were instrumented with stainless steel files, next two groups with rotary NiTi RaCe files and the last two groups with rotary NiTi K3 files. The instrumentation was carried out till the apical foramen (Working Length-WL) and 1 mm short of the apical foramen (WL-1) with each file system. After root canal instrumentation, postoperative images of root apices were obtained. Preoperative and postoperative images were compared and the occurrence of cracks was recorded. Descriptive statistical analysis and Chi-square tests were used to analyze the results. Results Apical root cracks were seen in 30%, 35% and 20% of teeth instrumented with K-files, RaCe files and K3 files respectively. There was no statistical significance among three instrumentation systems in the formation of apical cracks (p=0.563). Apical cracks were seen in 40% and 20% of teeth instrumented with K-files; 60% and 10% of teeth with RaCe files and 40% and 0% of teeth with K3 files at WL and WL-1 respectively. For groups instrumented with hand files there was no statistical significance in number of cracks at WL and WL-1 (p=0.628). But for teeth instrumented with RaCe files and K3 files

  6. 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

    ...' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV-BLACK... matter of law in a denial of his claim for compensation under such law. (c) To be considered to...

  7. 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

    ...' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV-BLACK... matter of law in a denial of his claim for compensation under such law. (c) To be considered to...

  8. Organization of the Inverted Files in a Distributed Information Retrieval System Based on Thesauri.

    ERIC Educational Resources Information Center

    Mazur, Zygmunt

    1986-01-01

    Describes how operations on local inverted files are to be modified in order to use them in distributed information retrieval systems based on thesauri. The presented rules may be viewed as the logical approach in implementing a distributed retrieval system consisting of n local retrieval systems. (Author/MBR)

  9. Electronic teaching files: seven-year experience using a commercial picture archiving and communication system.

    PubMed

    Siegel, E; Reiner, B

    2001-06-01

    With the advent of electronic imaging and the internet, the ability to create, search, access, and archive digital imaging teaching files has dramatically improved. Despite the fact that a picture archival and communication system (PACS) has the potential to greatly simplify the creation of, archival, and access to a department or multifacility teaching file, this potential has not yet been satisfactorily realized in our own and most other PACS installations. Several limitations of the teaching file tools within our PACS have become apparent over time. These have, at our facility, resulted in a substantially reduced role of the teaching file tools for conferences, daily teaching, and research purposes. With the PACS at our institution, academic folders can only be created by the systems engineer, which often serves as an impediment to the teaching process. Once these folders are created, multiple steps are required to identify the appropriate folders, and subsequently save images. Difficulties exist for those attempting to search for the teaching file images. Without pre-existing knowledge of the folder name and contents, it is difficult to query the system for specific images. This is due to the fact that there is currently no fully satisfactory mechanism for categorizing, indexing, and searching cases using the PACS. There is currently no easy mechanism to save teaching, research, or clinical files onto a CD or other removable media or to automatically strip demographic or other patient information from the images. PACS vendors should provide much more sophisticated tools to create and annotate teaching file images in an easy to use but standard format (possibly Radiological Society of North America's Medical Image Resource Center [MIRC] format) that could be exchanged with other sites and other vendors' PAC systems. The privilege to create teaching or conference files should be given to the individual radiologists, technologists, and other users, and an audit

  10. 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

    ... 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 a..., General Manager, Rates and Certificates, Gulfstream Natural Gas System, L.L.C., 5400 Westheimer Court,...

  11. Quantum systems under frequency modulation.

    PubMed

    Silveri, M P; Tuorila, J A; Thuneberg, E V; Paraoanu, G S

    2017-05-01

    We review the physical phenomena that arise when quantum mechanical energy levels are modulated in time. The dynamics resulting from changes in the transition frequency is a problem studied since the early days of quantum mechanics. It has been of constant interest both experimentally and theoretically since, with the simple two-state model providing an inexhaustible source of novel concepts. When the transition frequency of a quantum system is modulated, several phenomena can be observed, such as Landau-Zener-Stückelberg-Majorana interference, motional averaging and narrowing, and the formation of dressed states with the appearance of sidebands in the spectrum. Adiabatic changes result in the accumulation of geometric phases, which can be used to create topological states. In recent years, an exquisite experimental control in the time domain was gained through the parameters entering the Hamiltonian, and high-fidelity readout schemes allowed the state of the system to be monitored non-destructively. These developments were made in the field of quantum devices, especially in superconducting qubits, as a well as in atomic physics, in particular in ultracold gases. As a result of these advances, it became possible to demonstrate many of the fundamental effects that arise in a quantum system when its transition frequencies are modulated. The purpose of this review is to present some of these developments, from two-state atoms and harmonic oscillators to multilevel and many-particle systems.

  12. High performance file compression algorithm for video-on-demand e-learning system

    NASA Astrophysics Data System (ADS)

    Nomura, Yoshihiko; Matsuda, Ryutaro; Sakamoto, Ryota; Sugiura, Tokuhiro; Matsui, Hirokazu; Kato, Norihiko

    2005-10-01

    Information processing and communication technology are progressing quickly, and are prevailing throughout various technological fields. Therefore, the development of such technology should respond to the needs for improvement of quality in the e-learning education system. The authors propose a new video-image compression processing system that ingeniously employs the features of the lecturing scene: recognizing the a lecturer and a lecture stick by pattern recognition techniques, the video-image compression processing system deletes the figure of a lecturer of low importance and displays only the end point of a lecture stick. It enables us to create the highly compressed lecture video files, which are suitable for the Internet distribution. We compare this technique with the other simple methods such as the lower frame-rate video files, and the ordinary MPEG files. The experimental result shows that the proposed compression processing system is much more effective than the others.

  13. LLNL's Parallel I/O Testing Tools and Techniques for ASC Parallel File Systems

    SciTech Connect

    Loewe, W E; Hedges, R M; McLarty, T T; Morrone, C J

    2004-04-08

    Livermore Computing is an early and aggressive adopter of parallel file systems including, for example, GPFS from IBM and Lustre for our present Linux systems. As such, we have acquired more than our share of battle scars from encountering bugs in 'bleeding edge' file systems that we have pressed into production to serve our customers' massive I/O requirements. A major role of the Scalable I/O Project is to detect errors before our end users do. In order to do this, we have developed highly parallel test codes to stress and probe potentially weak areas of file system behavior. This paper describes those test programs and how we make use of them.

  14. 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

    ... Procedures for Certain Cancer Claims Filing Claims for Benefits Under Eeoicpa § 30.102 In general, how does... prior claim only if the employee had not reached his or her Social Security retirement age at the...

  15. 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.

  16. 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

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

    PubMed

    Metzger, Zvi

    2014-09-01

    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.

  18. 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.

  19. 77 FR 2056 - Midwest Independent Transmission System Operator, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Midwest Independent Transmission System Operator, Inc.; Notice of Filing Take notice that on December 27, 2011, Midwest Independent Transmission System Operator, Inc. submitted a request for authorization to defer...

  20. Strategic Considerations in the Design of a Screening System for Substructure Searches of Chemical Structure Files

    ERIC Educational Resources Information Center

    Adamson, George W.; And Others

    1973-01-01

    A major problem in the design of screening systems for substructure searches of chemical structure files is the development of a methodology for selection of an optimal set of structural characteristics to act as screens. Distributions of several structural characteristics of the Chemical Abstracts Service Registry System are summarized. (13…

  1. 29 CFR 15.202 - How is a claim filed under the MPCECA?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Energy Workers' Compensation Division Web site at www.dol.gov, is provided as an example for convenience... repair of any damaged item. (vi) The purpose of and authority for travel, if the loss or damage occurred... travel orders. In the case of an automobile, the claimant must file two estimates of repair or...

  2. 29 CFR 15.202 - How is a claim filed under the MPCECA?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Energy Workers' Compensation Division Web site at www.dol.gov, is provided as an example for convenience... repair of any damaged item. (vi) The purpose of and authority for travel, if the loss or damage occurred... travel orders. In the case of an automobile, the claimant must file two estimates of repair or...

  3. 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

  4. 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

    ... AGENCY Notification of Deletion of System of Records; EPA Parking Control Office File (EPA-10) and EPA Transit and Guaranteed Ride Home Program Files (EPA-35) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The Environmental Protection Agency (EPA) is deleting the systems of records...

  5. 43 CFR 4.1371 - Who may file, where to file, when to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file, where to file, when to file... Permits § 4.1371 Who may file, where to file, when to file. (a) A permittee that is served with a notice... under 30 CFR 773.23 may file a request for review with the Hearings Division, Office of Hearings...

  6. 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

  7. 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

  8. 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.

  9. 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..., including electronic reporting entities, may use the Commission's website's on-line program to file...

  10. Digital Computer Simulation Models of Library-Based Information Retrieval Systems. Reports on File Organization Studies.

    ERIC Educational Resources Information Center

    Reilly, Kevin D.

    A simulation study of library-based information retrieval systems is described. Basic models for each of several important aspects are presented: (1) user behavior, emphasizing response to quality and delays in services; (2) the scheduling of services and the organization of the machine-readable files; and (3) the distribution of conventional…

  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. Beyond the Data Archive: The Creation of an Interactive Numeric File Retrieval System.

    ERIC Educational Resources Information Center

    Chiang, Katherine; And Others

    1993-01-01

    Describes the creation of an interactive retrieval system for electronic numeric files that was developed at Cornell University's (New York) Mann Library. Topics discussed include user characteristics; special data characteristics; quality control; software; hardware; data preparation; database design and construction; interface; subject indexing…

  13. 17 CFR 242.608 - Filing and amendment of national market system plans.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 17 Commodity and Securities Exchanges 3 2011-04-01 2011-04-01 false Filing and amendment of national market system plans. 242.608 Section 242.608 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION (CONTINUED) REGULATIONS M, SHO, ATS, AC, AND NMS AND CUSTOMER MARGIN REQUIREMENTS...

  14. Binary authentication signatures integrity standard: System file integrity for the masses

    SciTech Connect

    Bartoletti, T.; Graff, M.; Schales, D.

    1994-03-01

    Thrusted software plays a central role in computer security, yet straightforward methods for authentication of installed software are lacking in the marketplace. This paper argues for a vendor-supported standard for the generation and publication of strong digital signature for all vendor-supplied system files. Progress in the design and adoption of a proposed standard is discussed.

  15. 78 FR 25740 - Meridian Energy USA, Inc. v. California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Meridian Energy USA, Inc. v. California Independent System Operator Corporation; Notice of Filing Take notice that on April 24, 2013, Meridian Energy USA, Inc....

  16. 77 FR 29628 - Midwest Independent Transmission System Operator, Inc.; Notice of Deadlines for Filing Post...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-18

    ...-000 and ER12-679-000] Midwest Independent Transmission System Operator, Inc.; Notice of Deadlines for Filing Post-Conference Comments As announced in the Notice of Technical Conference issued on April 4... technical conference in these proceedings on May 15, 2012 at the Federal Energy Regulatory Commission,...

  17. 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

    ...,'' ``Household goods,'' ``International waters,'' ``Issued banknote,'' ``Mass-market software,'' ``Non Vessel... (2) to reflect the correct Web site for the Automated Export System Trade Interface Requirements... correct citation in the International Traffic in Arms Regulations for filing timeframes for United...

  18. 76 FR 46774 - Privacy Act of 1974; System of Records-Federal Student Aid Application File

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-03

    ... are also added to the student's record during CPS processing: The Social Security Administration (SSA... Privacy Act of 1974; System of Records--Federal Student Aid Application File AGENCY: Federal Student Aid... Officer for Federal Student Aid (FSA) of the U.S. Department of Education (the Department) publishes...

  19. Comparison of the amount of apical debris extrusion associated with different retreatment systems and supplementary file application during retreatment process

    PubMed Central

    Çiçek, Ersan; Koçak, Mustafa Murat; Koçak, Sibel; Sağlam, Baran Can

    2016-01-01

    Background: The type of instrument affects the amount of debris extruded. The aim of this study was to compare the effect of retreatment systems and supplementary file application on the amount of apical debris extrusion. Materials and Methods: Forty-eight extracted mandibular premolars with a single canal and similar length were selected. The root canals were prepared with the ProTaper Universal system with a torque-controlled engine. The root canals were dried and were obturated using Gutta-percha and sealer. The specimens were randomly divided into four equal groups according to the retreatment procedures (Group 1, Mtwo retreatment files; Group 2, Mtwo retreatment files + Mtwo rotary file #30 supplementary file; Group 3, ProTaper Universal retreatment (PTUR) files; and Group 4, PTUR files + ProTaper F3 supplementary file). The extruded debris during instrumentation were collected into preweighed Eppendorf tubes. The amount of apically extruded debris was calculated by subtracting the initial weight of the tube from the final weight. Three consecutive weights were obtained for each tube. Results: No statistically significant difference was found in the amount of apically extruded debris between Groups 1 and 3 (P = 0.590). A significant difference was observed between Groups 1 and 2 (P < 0.05), and between Groups 3 and 4 (P < 0.05). Conclusions: The use of supplementary file significantly increased the amount of apically extruded debris. PMID:27563185

  20. 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...

  1. 77 FR 37035 - SunPower Corporation, Systems; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-20

    .... ER12-1989-000] SunPower Corporation, Systems; Supplemental Notice That Initial Market-Based Rate Filing...-referenced proceeding of SunPower Corporation, Systems's application for market-based rate authority, with...

  2. Analytical results for the reactivity of a single-file system

    NASA Astrophysics Data System (ADS)

    Jansen, A. P.; Nedea, S. V.; Lukkien, J. J.

    2003-03-01

    We derive analytical expressions for the reactivity of a single-file system with fast diffusion and particles entering and leaving the system at one end. If the conversion reaction is fast, then the reactivity depends only very weakly on the system size, and the conversion is about 100%. If the reaction is slow, then the reactivity becomes proportional to the system size, the loading, and the reaction rate constant. If the system size increases the reactivity goes to the geometric mean of the reaction rate constant and the rate of particles entering and leaving the system. For large systems, the number of unconverted particles decreases exponentially with distance from the open end.

  3. 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

  4. Power system expansion planning under uncertainty

    SciTech Connect

    Gorenstin, B.G.; Campodonico, N.M.; Costa, J.P.; Pereira, M.V.F. . Centro de Pesquisas de Energia Electrica)

    1993-02-01

    This paper describes a methodology for expansion planning of power systems under several uncertainty factors such as demand growth, fuel cost, delay in project completion, financial constraints etc. The solution approach is based on stochastic optimization techniques, decision analysis, and multiobjective tradeoff analysis. Case studies with the Brazilian system are presented and discussed.

  5. 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.

  6. Endodontic treatment of mandibular molar with root dilaceration using Reciproc single-file system

    PubMed Central

    Meireles, Daniely Amorin; Bastos, Mariana Mena Barreto; Marques, André Augusto Franco; Sponchiado, Emílio Carlos

    2013-01-01

    Biomechanical preparation of root canals with accentuated curvature is challenging. New rotatory systems, such as Reciproc, require a shorter period of time to prepare curved canals, and became a viable alternative for endodontic treatment of teeth with root dilaceration. Thus, this study aimed to report a clinical case of endodontic therapy of root with accentuated dilaceration using Reciproc single-file system. Mandibular right second molar was diagnosed as asymptomatic irreversible pulpitis. Pulp chamber access was performed, and glide path was created with #10 K-file (Dentsply Maillefer) and PathFile #13, #16 and #19 (Dentsply Maillefer) up to the temporary working length. The working length measured corresponded to 20 mm in the mesio-buccal and mesio-lingual canals, and 22 mm in the distal canal. The R25 file (VDW GmbH) was used in all the canals for instrumentation and final preparation, followed by filling with Reciproc gutta-percha cones (VDW GmbH) and AH Plus sealer (Dentsply Maillefer), using thermal compaction technique. The case has been receiving follow-up for 6 mon and no painful symptomatology or periapical lesions have been found. Despite the difficulties, the treatment could be performed in a shorter period of time than the conventional methods. PMID:24010084

  7. Ex Vivo Comparison of Mtwo and RaCe Rotary File Systems in Root Canal Deviation: One File Only versus the Conventional Method

    PubMed Central

    Aminsobhani, Mohsen; Nozari, Solmaz

    2015-01-01

    Objectives: Cleaning and shaping of the root canal system is an important step in endodontic therapy. New instruments incorporate new preparation techniques that can improve the efficacy of cleaning and shaping. The aim of this study was to compare the efficacy of Mtwo and RaCe rotary file systems in straightening the canal curvature using only one file or the conventional method. Materials and Methods: Sixty mesial roots of extracted human mandibular molars were prepared by RaCe and Mtwo nickel-titanium (NiTi) rotary files using the conventional and only one rotary file methods. The working length was 18 mm and the curvatures of the root canals were between 15–45°. By superimposing x-ray images before and after the instrumentation, deviation of the canals was assessed using Adobe Photoshop CS3 software. Preparation time was recorded. Data were analyzed using three-way ANOVA and Tukey’s post hoc test. Results: There were no significant differences between RaCe and Mtwo or between the two root canal preparation methods in root canal deviation in buccolingual and mesiodistal radiographs (P>0.05). Changes of root canal curvature in >35° subgroups were significantly more than in other subgroups with smaller canal curvatures. Preparation time was shorter in one file only technique. Conclusion: According to the results, the two rotary systems and the two root canal preparation methods had equal efficacy in straightening the canals; but the preparation time was shorter in one file only group. PMID:26877736

  8. 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.

  9. The incidence of dentinal cracks during root canal preparations with reciprocating single-file and rotary-file systems: A meta-analysis.

    PubMed

    Wei, Xi; Hu, Bo; Peng, Haiyang; Tang, Ming; Song, Jinlin

    2017-03-08

    As a dangerous factor in vertical root fracture, dentinal crack formation is often associated with root canal instruments. We conducted this meta-analysis to compare the influence of two types of nickel titanium (NiTi) instruments that have different movements (reciprocating single-file versus full-sequence rotary file systems) on dentinal cracks formation during root canal preparation. Searches were conducted in PubMed, ISI Web of Knowledge, Embase and Cochrane Library using a combination of keywords. Titles and abstracts of all articles were independently assessed by two reviewers in accordance with the predefined inclusion criteria. Relevant studies were acquired in full-text form. Data in these articles were independently extracted. A meta-analysis was conducted using Review Manager 5.3. The results showed that the WaveOne and Reciproc files with a reciprocating motion produced significantly fewer dentinal cracks than the conventional rotational ProTaper technique.

  10. 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.

  11. 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

  12. 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.

  13. Chemical Carcinogenesis Research Information System (CCRIS) data bank, 1981-June 1986 (1988 version). Data file

    SciTech Connect

    Cameron, T.P.; Stump, J.M.; Schofield, L.

    1986-01-01

    CCRIS is a scientifically evaluated and fully referenced data bank, developed and maintained by the National Cancer Institute (NCI), containing carcinogenicity, tumor promotion, and mutagenicity test results. Data are derived from the scanning of primary journals, current-awareness tools, and a special core set of sources, including a wide range of NCI reports. Test results have been reviewed by experts in carcinogenesis. CCRIS File Structure: CCRIS data fields are arranged in two broad subject categories plus a category for administrative information: Administrative Information, Substance Identification/Use, Carcinogenicity/Tumor Promotion/Mutagenicity Studies. The three data fields within category 2 and the information contained therein are: Carcinogenicity Studies: Species; Strain/Sex; Route; Dose; Tumor site/Type of lesion; Results; Reference. Tumor Promotion Studies; Species; Strain/Sex; Promoter Route; Target Tissue/Type of Lesion, Promoter Doses, Carcinogen Route; Carcinogen Doses; Reference. Mutagenicity studies: Test System; Strain/Indicator; Metabolic Activation; Method; Dose range; Reference. A new file dictionary has been enclosed that is a result of minor changes to the file structure. All other documentation on file at the NTIS is still applicable.

  14. A design for a new catalog manager and associated file management for the Land Analysis System (LAS)

    NASA Technical Reports Server (NTRS)

    Greenhagen, Cheryl

    1986-01-01

    Due to the larger number of different types of files used in an image processing system, a mechanism for file management beyond the bounds of typical operating systems is necessary. The Transportable Applications Executive (TAE) Catalog Manager was written to meet this need. Land Analysis System (LAS) users at the EROS Data Center (EDC) encountered some problems in using the TAE catalog manager, including catalog corruption, networking difficulties, and lack of a reliable tape storage and retrieval capability. These problems, coupled with the complexity of the TAE catalog manager, led to the decision to design a new file management system for LAS, tailored to the needs of the EDC user community. This design effort, which addressed catalog management, label services, associated data management, and enhancements to LAS applications, is described. The new file management design will provide many benefits including improved system integration, increased flexibility, enhanced reliability, enhanced portability, improved performance, and improved maintainability.

  15. 37 CFR 1.16 - National application filing, search, and examination fees.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...-electronic filing fee for any application under 35 U.S.C. 111(a) that is filed on or after November 15, 2011... AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE GENERAL RULES OF PRACTICE IN PATENT CASES General... electronic filing system (§ 1.27(b)(2)) 70.00 By other than a small or micro entity 280.00 (b) Basic fee...

  16. 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.

  17. 77 FR 43592 - System Energy Resources, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-25

    ..., 2012, System Energy Resources, Inc. (System Energy Resources), submitted a supplement to its petition... supplement, System Energy Resources supplements its March 28 petition to provide additional information and... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY...

  18. An application of an optical disk filing system to the management of medical records.

    PubMed

    Yamauchi, K; Miura, T

    1990-07-01

    An optical disk filing system is a promising new method to memorize the contents of medical records. However, due to problems of image quality, input speed and durability with the disk, this has not yet been put to practical use. In the present study the image quality of the laser disk system installed in our hospital were checked, and this system was thought to be useful to store discharge summary. We developed discharge summary management system by inputting into the optical disks the discharge summary written freely by doctors and the discharge abstract automatically formed by computer.

  19. 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.

  20. Shaping Ability of Single-file Systems with Different Movements: A Micro-computed Tomographic Study

    PubMed Central

    Santa-Rosa, Joedy; de Sousa-Neto, Manoel Damião; Versiani, Marco Aurelio; Nevares, Giselle; Xavier, Felipe; Romeiro, Kaline; Cassimiro, Marcely; Leoni, Graziela Bianchi; de Menezes, Rebeca Ferraz; Albuquerque, Diana

    2016-01-01

    Introduction: This study aimed to perform a rigorous sample standardization and also evaluate the preparation of mesiobuccal (MB) root canals of maxillary molars with severe curvatures using two single-file engine-driven systems (WaveOne with reciprocating motion and OneShape with rotary movement), using micro-computed tomography (micro-CT). Methods and Materials: Ten MB roots with single canals were included, uniformly distributed into two groups (n=5). The samples were prepared with a WaveOne or OneShape files. The shaping ability and amount of canal transportation were assessed by a comparison of the pre- and post-instrumentation micro-CT scans. The Kolmogorov-Smirnov and t-tests were used for statistical analysis. The level of significance was set at 0.05. Results: Instrumentation of canals increased their surface area and volume. Canal transportation occurred in coronal, middle and apical thirds and no statistical difference was observed between the two systems (P>0.05). In apical third, significant differences were found between groups in canal roundness (in 3 mm level) and perimeter (in 3 and 4 mm levels) (P<0.05). Conclusion: The WaveOne and One Shape single-file systems were able to shape curved root canals, producing minor changes in the canal curvature. PMID:27471537

  1. Management of the Israeli National Water System under Uncertainty

    NASA Astrophysics Data System (ADS)

    Shamir, U.; Housh, M.; Ostfeld, A.; Zaide, M.

    2009-12-01

    Uncertainty in our region is due to the natural variability of hydrological patterns, with recurring extended droughts, reduced average and broadening variability of recharge that seem to indicate the effect of climate change, as well as to deterioration of water quality in the natural sources, to population growth and distribution, to shifting demand patterns among consumer sectors, and to expected future regional water agreements. These factors combine to create a challenging environment in which highly stressed water resources and water systems have to be developed, operated and managed. The natural sources have been used to their sustainable capacity and often beyond. The main policy responses are a shift of fresh water from agriculture to the cities, replacing it with treated wastewater for irrigation, and a major program for construction of sea-water desalination plants and the associated infrastructure needed for its integration into the supply systems. Organizational reforms, regulation, and demand management options are also being developed, including full-cost pricing. Management of the water resources and systems under these conditions requires a long-term perspective. The methodologies for supporting management decisions that have been used to date by the Israeli Water Authority include evaluation by scenarios, simulation, and optimization with sensitivity analysis. We review existing approaches and models for management of the Israeli water system (Zaide 2006) and then present some new methodologies for addressing operational decisions under hydrological uncertainty, which include generation of tradeoffs between the expected value and variability of the outcomes, and an Info-Gap (Ben-Haim 2006) based approach. These methodologies are demonstrated on examples that emulate portions of a regional water system and are then applied to the Israeli National Water System. Ben-Haim, Y. (2006) Info-Gap Theory: Decisions under Severe Uncertainty, 2nd Ed

  2. The representations underlying infants' choice of more: object files versus analog magnitudes.

    PubMed

    Feigenson, Lisa; Carey, Susan; Hauser, Marc

    2002-03-01

    A new choice task was used to explore infants' spontaneous representations of more and less. Ten- and 12-month-old infants saw crackers placed sequentially into two containers, then were allowed to crawl and obtain the crackers from the container they chose. Infants chose the larger quantity with comparisons of 1 versus 2 and 2 versus 3, but failed with comparisons of 3 versus 4, 2 versus 4, and 3 versus 6. Success with visible arrays ruled out a motivational explanation for failure in the occluded 3-versus-6 condition. Control tasks ruled out the possibility that presentation duration guided choice, and showed that presentation complexity was not responsible for the failure with larger numbers. When crackers were different sizes, total surface area or volume determined choice. The infants 'pattern of success and failure supports the hypothesis that they relied on object-file representations, comparing mental models via total volume or surface area rather than via one-to-one correspondence between objectfiles.

  3. Computer printing and filing of microbiology reports. 1. Description of the system.

    PubMed

    Goodwin, C S; Smith, B C

    1976-06-01

    From March 1974 all reports from this microbiology department have been computer printed and filed. The system was designed to include every medically important microorganism and test. Technicians at the laboratory bench made their results computer-readable using Port-a-punch cards, and specimen details were recorded on paper-tape, allowing the full description of each specimen to appear on the report. A summary form of each microbiology phrase enabled copies of reports to be printed on wide paper with 12 to 18 reports per sheet; such copies, in alphabetical order for one day, and cumulatively for one week were used by staff answering enquiries to the office. This format could also be used for printing allthe reports for one patient. Retrieval of results from the files was easily performed and was useful to medical and laboratory staff and for control-of-infection purposes. The system was written in COBOL and was designed to be as cost-effective as possible without sacrificing accuracy; the cost of a report and its filing was 17-97 pence.

  4. 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

    ... communications made in reliance on § 230.167 are prospectuses that must be filed with the Commission in... prospective investors under the following conditions: (i) If a prospective investor has indicated to the... to such prospective investor; and (ii) For any other prospective investor, all materials provided...

  5. 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

    ... 7 Agriculture 1 2011-01-01 2011-01-01 false How must documents be filed and served under §§ 1.670 through 1.673? 1.670 Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must...

  6. 7 CFR 1.670 - How must documents be filed and served under §§ 1.670 through 1.673?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 1 2012-01-01 2012-01-01 false How must documents be filed and served under §§ 1.670 through 1.673? 1.670 Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must...

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

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false How must documents be filed and served under §§ 1.670 through 1.673? 1.670 Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must...

  8. 7 CFR 1.670 - How must documents be filed and served under §§ 1.670 through 1.673?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 1 2013-01-01 2013-01-01 false How must documents be filed and served under §§ 1.670 through 1.673? 1.670 Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must...

  9. 7 CFR 1.670 - How must documents be filed and served under §§ 1.670 through 1.673?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 1 2014-01-01 2014-01-01 false How must documents be filed and served under §§ 1.670 through 1.673? 1.670 Section 1.670 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Conditions in FERC Hydropower Licenses Alternatives Process § 1.670 How must...

  10. 78 FR 21930 - Aquenergy Systems, Inc.; Notice of Intent To File License Application, Filing of Pre-Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-12

    ... Process. k. With this notice, we are initiating informal consultation with: (a) The U.S. Fish and Wildlife... TTY, (202) 502-8659. A copy is also available for inspection and reproduction at the address in..., 2015. p. Register online at http://www.ferc.gov/docs-filing/esubscription.asp to be notified via...

  11. Methods and Systems for Tracking File Routing on a Network

    DTIC Science & Technology

    2013-06-18

    of2 :-ISOLATE I I ROUTERS I 234 I _____ .J TIME-SERIES 14-------__. 208 COMPUTE LOMB PERIODOGRAMS 210 COMPARE SUCCESSIVE PERIODOGRAMS 212...mation Discovery Using Lomb Periodogram Processing", incorporated by reference herein in its entirety, describes 15 methods and systems for processing...oflinks having coherence values above a threshold value. 4 node to determine if one of the periodograms includes a peak above a threshold at a first

  12. The Design of a Secure File Storage System

    DTIC Science & Technology

    1979-12-01

    REPRODUCE LEGIBLY. 11 I SECUITYCLASIFCATOR OF THIS PAGE fW’A.n Data Efntered) REPORT DOCUMENTATION PAGE BFRE COMPTING ORM 7REP-Oft liumat ~2. GGVT ACCESSION...different host Report) 1S SUPPLEMENTARV NOTES 19 KEY WORDS (Coninue on t*7*mo* aid* if necessary arid ldiy by block numer) Data Security, Security...A segmented memory at the Supervisor level allows controlled data sharing among authorized users. System integrity is independent of the internal

  13. 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

  14. Debris Evaluation after Root Canal Shaping with Rotating and Reciprocating Single-File Systems

    PubMed Central

    Dagna, Alberto; Gastaldo, Giulia; Beltrami, Riccardo; Poggio, Claudio

    2016-01-01

    This study evaluated the root canal dentine surface by scanning electron microscope (SEM) after shaping with two reciprocating single-file NiTi systems and two rotating single-file NiTi systems, in order to verify the presence/absence of the smear layer and the presence/absence of open tubules along the walls of each sample; Forty-eight single-rooted teeth were divided into four groups and shaped with OneShape (OS), F6 SkyTaper (F6), WaveOne (WO) and Reciproc and irrigated using 5.25% NaOCl and 17% EDTA. Root canal walls were analyzed by SEM at a standard magnification of 2500×. The presence/absence of the smear layer and the presence/absence of open tubules at the coronal, middle, and apical third of each canal were estimated using a five-step scale for scores. Numeric data were analyzed using Kruskal-Wallis and Mann-Whitney U statistical tests and significance was predetermined at P < 0.05; The Kruskal-Wallis ANOVA for debris score showed significant differences among the NiTi systems (P < 0.05). The Mann-Whitney test confirmed that reciprocating systems presented significantly higher score values than rotating files. The same results were assessed considering the smear layer scores. ANOVA confirmed that the apical third of the canal maintained a higher quantity of debris and smear layer after preparation of all the samples; Single-use NiTi systems used in continuous rotation appeared to be more effective than reciprocating instruments in leaving clean walls. The reciprocating systems produced more debris and smear layer than rotating instruments. PMID:27763503

  15. NMCS Information Processing System 360 Formatted File System (NIPS 360 FFS). Users Manual. Volume 1. Introduction to File Concepts

    DTIC Science & Technology

    1978-09-01

    may be utilized from the bitched job stream as well as from terminals. The third aajor subset of this component is Sourze Data Automation (SODA...segment. 3.10.1.3 Data Gemecation Gcoup The DSNAME parameter of the DD cards in the ICL stream for the user and system libaries (SLIB), sequential data fil...fields and groups of the same type. SODA System component -- Source Data Automation . Stop W:cr Table A user-defined table for the Keywcrd Indexing

  16. Text File Comparator

    NASA Technical Reports Server (NTRS)

    Kotler, R. S.

    1983-01-01

    File Comparator program IFCOMP, is text file comparator for IBM OS/VScompatable systems. IFCOMP accepts as input two text files and produces listing of differences in pseudo-update form. IFCOMP is very useful in monitoring changes made to software at the source code level.

  17. 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

    ... 29 Labor 1 2013-07-01 2013-07-01 false How does a Job Corps student file a claim for loss of or damages to personal property under the WIA? 15.303 Section 15.303 Labor Office of the Secretary of Labor ADMINISTRATIVE CLAIMS UNDER THE FEDERAL TORT CLAIMS ACT AND RELATED CLAIMS STATUTES Claims Arising Out of the Operation of the Job Corps §...

  18. 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.

  19. Site Enforcement Tracking System (SETS) (National) (on diskette). Data file

    SciTech Connect

    1997-11-01

    When expending Superfund monies at a CERCLA (Comprehensive Environmental Response, Compensation and Liability Act) site, EPA must conduct a search to identify parties with potential financial responsibility for remediation of uncontrolled hazardous waste sites. EPA regional Superfund Waste Management Staff issue a notice letter to the potentially responsible party (PRP). Data from this notice letter are used to form the Site Enforcement Tracking System (SETS). These data includes PRP name and address, a company contact person, the date the notice was issued, and the related CERCLA site name and identification number. SETS was created by EPA to track PRP identification at both NPL (National Priority List) and non-NPL sites. SETS does not address the range of other administrative duties related to tracking the PRP. These lists represent EPA`s preliminary findings on the identities of PRPs. Inclusion on these lists does not constitute a final determination concerning the liability of any party for the hazard or contamination at any CERCLA site.

  20. 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

    ... publications. The waiver also will be subject to the terms and conditions regarding the method of filing as may... hardship related to filing information returns on magnetic media) will apply. (d) Meaning of terms. The following definitions apply for purposes of this section: (1) Magnetic media. The term magnetic media...

  1. 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

    ... publications. The waiver also will be subject to the terms and conditions regarding the method of filing as may... hardship related to filing information returns on magnetic media) will apply. (d) Meaning of terms. The following definitions apply for purposes of this section: (1) Magnetic media. The term magnetic media...

  2. The influence of two reciprocating single-file and two rotary-file systems on the apical extrusion of debris and its biological relationship with symptomatic apical periodontitis. A systematic review and meta-analysis.

    PubMed

    Caviedes-Bucheli, J; Castellanos, F; Vasquez, N; Ulate, E; Munoz, H R

    2016-03-01

    This systematic review and meta-analysis investigated the influence of the number of files (full-sequence rotary-file versus reciprocating single-file systems) used during root canal preparation on the apical extrusion of debris and its biological relationship with the occurrence of symptomatic apical periodontitis. An extensive literature research was carried out in the Medline, ISI Web of Science and Cochrane databases, for relevant articles with the keyword search strategy. Based on inclusion and exclusion criteria, two reviewers independently rated the quality of each study determining the level of evidence of the articles selected. The primary outcome for the meta-analysis was determined by the amount of debris extruded into the periapical tissue during root canal preparation with multiple- or single-file systems in four laboratory studies. Analysis of in vivo release of neuropeptides (SP and CGRP) after root canal preparation with single- or multiple-file systems was also carried out. Amongst the 128 articles initially found, 113 were excluded for being nonrelevant or not fulfilling the selection criteria. Another four articles were excluded after methodology evaluation. Finally, nine laboratory studies and two in vivo studies were included in the systematic review. Four of the laboratory studies were further included for meta-analysis that revealed greater debris extrusion after the use of single-file techniques when compared to multiple-file systems. Analysis of in vivo neuropeptide expression in the periodontal ligament suggests that the design of the instrument is more important than the number of files used. Both rotary and reciprocating single-file systems generate apical extrusion of debris in laboratory studies, or expression of neuropeptides in vivo. Available evidence is limited, but supports the fact that this inflammatory reaction is not influenced by the number of files but the type of movement and the instrument design.

  3. 36 CFR 1202.90 - What NARA systems of records are exempt from release under the National Security Exemption of the...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... of the Inspector General (NARA-23) and the Personnel Security Case Files (NARA-24) systems of records... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false What NARA systems of records are exempt from release under the National Security Exemption of the Privacy Act? 1202.90 Section...

  4. 36 CFR 1202.90 - What NARA systems of records are exempt from release under the National Security Exemption of the...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of the Inspector General (NARA-23) and the Personnel Security Case Files (NARA-24) systems of records... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false What NARA systems of records are exempt from release under the National Security Exemption of the Privacy Act? 1202.90 Section...

  5. 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.

  6. 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.

  7. Permanent-File-Validation Utility Computer Program

    NASA Technical Reports Server (NTRS)

    Derry, Stephen D.

    1988-01-01

    Errors in files detected and corrected during operation. Permanent File Validation (PFVAL) utility computer program provides CDC CYBER NOS sites with mechanism to verify integrity of permanent file base. Locates and identifies permanent file errors in Mass Storage Table (MST) and Track Reservation Table (TRT), in permanent file catalog entries (PFC's) in permit sectors, and in disk sector linkage. All detected errors written to listing file and system and job day files. Program operates by reading system tables , catalog track, permit sectors, and disk linkage bytes to vaidate expected and actual file linkages. Used extensively to identify and locate errors in permanent files and enable online correction, reducing computer-system downtime.

  8. Modeling of the interplay between single-file diffusion and conversion reaction in mesoporous systems

    SciTech Connect

    Wang, Jing

    2013-01-11

    We analyze the spatiotemporal behavior of species concentrations in a diffusion-mediated conversion reaction which occurs at catalytic sites within linear pores of nanometer diameter. A strict single-file (no passing) constraint occurs in the diffusion within such narrow pores. Both transient and steady-state behavior is precisely characterized by kinetic Monte Carlo simulations of a spatially discrete lattice–gas model for this reaction–diffusion process considering various distributions of catalytic sites. Exact hierarchical master equations can also be developed for this model. Their analysis, after application of mean-field type truncation approximations, produces discrete reaction–diffusion type equations (mf-RDE). For slowly varying concentrations, we further develop coarse-grained continuum hydrodynamic reaction–diffusion equations (h-RDE) incorporating a precise treatment of single-file diffusion (SFD) in this multispecies system. Noting the shortcomings of mf-RDE and h-RDE, we then develop a generalized hydrodynamic (GH) formulation of appropriate gh-RDE which incorporates an unconventional description of chemical diffusion in mixed-component quasi-single-file systems based on a refined picture of tracer diffusion for finite-length pores. The gh-RDE elucidate the non-exponential decay of the steady-state reactant concentration into the pore and the non-mean-field scaling of the reactant penetration depth. Then an extended model of a catalytic conversion reaction within a functionalized nanoporous material is developed to assess the effect of varying the reaction product – pore interior interaction from attractive to repulsive. The analysis is performed utilizing the generalized hydrodynamic formulation of the reaction-diffusion equations which can reliably capture the complex interplay between reaction and restricted transport for both irreversible and reversible reactions.

  9. [A new computerized system for electroencephalography at the Kochi Medical School Hospital: the present status and problems of electroencephalogram data filing systems].

    PubMed

    Doi, T; Kataoka, H; Nishida, M; Sasaki, M

    1990-06-01

    The usual electroencephalography (EEG) recording consumes great amounts of paper, considerable storage space for records and much time and energy for their search and retrieval. In addition, we can not perform digitized analyses of the records with the present method. To solve these problems, our laboratory developed a new computerized system for EEG, in which data are retained in optic disks, and which has been in service for routine examination since December, 1988. The functions of the system and EEG filing system, include the collection, retention, retrieval, transmission and analyses of data with the reproduction of the original EEG and editing function of summary reports to be filed in the medical records. The summary report consists of summary, characteristic wave patterns picked up and edited from EEG, and spectral array and topographical mapping by digitized analyses of EEG. The condition for the collection of EEG data was 200 Hz/8 bit, and the reproduced wave patterns were accepted by all clinicians. The merits of the system include; (i) saving of paper, space and time needed for EEG, (ii) enabling the comparison of the wave patterns in the form of summary reports and (iii) the capability of digitized analyses of EEG by retaining the EEG data in the data base. The problems remaining to be improved for the system are the longer time required for examination (5-10 min) and the higher running cost (yen 460/order). Regarding the latter problem, a revised method which dispenses with recording paper is under consideration. That is, in the case of screening examinations, summary reports for medical records alone would be delivered to clinicians. This idea has been accepted by some clinicians. To realize the revised system, we presently are planning to establish a method to display EEG on CRT.

  10. 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.

  11. An Interactive Information Retrieval System; Case Studies on the Use of DIALOG to Search the ERIC Document File.

    ERIC Educational Resources Information Center

    Timbie, Michele; Coombs, Don H.

    The first interactive (on-line) computerized use of the ERIC files by the U.S. Office of Education is reported in the form of an evaluation of the DIALOG system conducted at the ERIC Clearinghouse for Educational Media and Technology. Descriptions of the purposes of the study, of the DIALOG system (developed by Lockheed Missiles and Space Co.),…

  12. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... to be filed under 11 CFR parts 101, 102, 104, 105, 107, 108, and 109, and any modifications or...) Except for documents electronically filed under paragraph (c) of this section, a document is timely filed upon delivery to the Federal Election Commission, 999 E Street, NW., Washington, DC 20463; or...

  13. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... to be filed under 11 CFR parts 101, 102, 104, 105, 107, 108, and 109, and any modifications or...) Except for documents electronically filed under paragraph (c) of this section, a document is timely filed upon delivery to the Federal Election Commission, 999 E Street, NW., Washington, DC 20463; or...

  14. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... to be filed under 11 CFR parts 101, 102, 104, 105, 107, 108, and 109, and any modifications or...) Except for documents electronically filed under paragraph (c) of this section, a document is timely filed upon delivery to the Federal Election Commission, 999 E Street, NW., Washington, DC 20463; or...

  15. 11 CFR 104.5 - Filing dates (2 U.S.C. 434(a)(2)).

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... intention at the time it files a required report under its current filing frequency. Such political... for a quarterly report shall be waived if, under paragraph (a)(2) of this section, a pre-election... the date of deposit and recorded in the overnight delivery service's on-line tracking system,...

  16. 11 CFR 104.5 - Filing dates (2 U.S.C. 434(a)(2)).

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Commission in writing of its intention at the time it files a required report under its current filing... quarter. (iii) The requirement for a quarterly report shall be waived if, under paragraph (a)(2) of this... on-line tracking system, the postmark on the report must be dated no later than the 15th day...

  17. 11 CFR 104.5 - Filing dates (2 U.S.C. 434(a)(2)).

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Commission in writing of its intention at the time it files a required report under its current filing... quarter. (iii) The requirement for a quarterly report shall be waived if, under paragraph (a)(2) of this... on-line tracking system, the postmark on the report must be dated no later than the 15th day...

  18. 11 CFR 104.5 - Filing dates (2 U.S.C. 434(a)(2)).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Commission in writing of its intention at the time it files a required report under its current filing... quarter. (iii) The requirement for a quarterly report shall be waived if, under paragraph (a)(2) of this... on-line tracking system, the postmark on the report must be dated no later than the 15th day...

  19. 11 CFR 104.5 - Filing dates (2 U.S.C. 434(a)(2)).

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Commission in writing of its intention at the time it files a required report under its current filing... quarter. (iii) The requirement for a quarterly report shall be waived if, under paragraph (a)(2) of this... on-line tracking system, the postmark on the report must be dated no later than the 15th day...

  20. 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...

  1. Architecture of a high-performance PACS based on a shared file system

    NASA Astrophysics Data System (ADS)

    Glicksman, Robert A.; Wilson, Dennis L.; Perry, John H.; Prior, Fred W.

    1992-07-01

    The Picture Archive and Communication System developed by Loral Western Development Laboratories and Siemens Gammasonics Incorporated utilizes an advanced, high speed, fault tolerant image file server or Working Storage Unit (WSU) combined with 100 Mbit per second fiber optic data links. This central shared file server is capable of supporting the needs of more than one hundred workstations and acquisition devices at interactive rates. If additional performance is required, additional working storage units may be configured in a hyper-star topology. Specialized processing and display hardware is used to enhance Apple Macintosh personal computers to provide a family of low cost, easy to use, yet extremely powerful medical image workstations. The Siemens LiteboxTM application software provides a consistent look and feel to the user interface of all workstation in the family. Modern database and wide area communications technologies combine to support not only large hospital PACS but also outlying clinics and smaller facilities. Basic RIS functionality is integrated into the PACS database for convenience and data integrity.

  2. 77 FR 48511 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ...: New York Independent System Operator, Inc. Description: NYISO Compliance Filing--Buyer-side Market... qualifying facilities filings can be found at: http://www.ferc.gov/docs-filing/efiling/filing-req.pdf ....

  3. 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…

  4. 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.

  5. 20 CFR 404.1077 - Individuals under railroad retirement system.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 2 2012-04-01 2012-04-01 false Individuals under railroad retirement system... Self-Employment § 404.1077 Individuals under railroad retirement system. If you are an employee or... business. Your services are covered under the railroad retirement system. Self-Employment Income...

  6. 20 CFR 404.1077 - Individuals under railroad retirement system.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 2 2014-04-01 2014-04-01 false Individuals under railroad retirement system... Self-Employment § 404.1077 Individuals under railroad retirement system. If you are an employee or... business. Your services are covered under the railroad retirement system. Self-Employment Income...

  7. 20 CFR 404.1077 - Individuals under railroad retirement system.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 2 2013-04-01 2013-04-01 false Individuals under railroad retirement system... Self-Employment § 404.1077 Individuals under railroad retirement system. If you are an employee or... business. Your services are covered under the railroad retirement system. Self-Employment Income...

  8. 20 CFR 404.1077 - Individuals under railroad retirement system.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Individuals under railroad retirement system... Self-Employment § 404.1077 Individuals under railroad retirement system. If you are an employee or... business. Your services are covered under the railroad retirement system. Self-Employment Income...

  9. 20 CFR 404.1077 - Individuals under railroad retirement system.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Individuals under railroad retirement system... Self-Employment § 404.1077 Individuals under railroad retirement system. If you are an employee or... business. Your services are covered under the railroad retirement system. Self-Employment Income...

  10. Effect of Patency File on Transportation and Curve Straightening in Canal Preparation with ProTaper System.

    PubMed

    Hasheminia, Seyed Mohsen; Farhadi, Nastaran; Shokraneh, Ali

    2013-01-01

    The aim of this ex vivo study was to evaluate the effect of using a patency file on apical transportation and curve straightening during canal instrumentation with the ProTaper rotary system. Seventy permanent mandibular first molars with mesiobuccal canals, measuring 18-23 mm in length and with a 25-40° curvature (according to the Schneider method), were selected. The working lengths were determined and the teeth were mounted and divided into two experimental groups: (A) prepared by the ProTaper system without using a patency file (n = 35) and (B) prepared by the ProTaper system using a patency file (n = 35). Radiographs taken before and after the preparation were imported into Photoshop software and the apical transportation, and curve straightening were measured. Data were analyzed using independent t-test. Partial correlation analysis was performed to evaluate the relationship between the initial curvature, transportation, and curve straightening (α = 0.05). Using a patency file during canal preparation significantly decreased both apical transportation and curve straightening (P < 0.001). There were significant relationships between the angle of curvature, transportation and curve straightening in pairs (P < 0.001). Apical patency is recommended during root canal preparation with the ProTaper rotary system.

  11. 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

    ... Policy Act 1. Introduction On October 7, 1977, the Council of Environmental Quality (CEQ) and the... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Amended Environmental Impact Statement Filing System Guidance for Implementing 40 CFR 1506.9...

  12. 78 FR 54305 - Joint Industry Plan; Notice of Filing of the Fifth Amendment to the National Market System Plan...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-03

    ... From the Federal Register Online via the Government Publishing Office ] SECURITIES AND EXCHANGE COMMISSION Joint Industry Plan; Notice of Filing of the Fifth Amendment to the National Market System Plan To Address Extraordinary Market Volatility by BATS Exchange, Inc., BATS Y-Exchange, Inc., Chicago Board Options Exchange, Incorporated,...

  13. Robotic system for i.v. antineoplastic drug preparation: description and preliminary evaluation under simulated conditions.

    PubMed

    Cote, D D; Torchia, M G

    1989-11-01

    A robotic system for preparing doses of i.v. antineoplastic drugs is described, and measurements made with the system are compared for accuracy and reproducibility with those made by pharmacists and technicians. System hardware consists of a robotic arm, a 16-bit microcomputer, a bar-code reader, a voice synthesizer, and an electronic balance. The software includes a menu-driven main program, executable files for each robotic activity, and an interface to allow control to pass between the program and the files. The program has routines for matching the software to the hardware; for entering information about the patient, the name of the drug ordered, and the dose; for checking the dose; for selecting the number and size of the vials to be used; for specifying the manipulations of the robotic arm; for printing labels; and for maintaining records. The robot fills an order by getting and placing a vial, inserting a needle into it and withdrawing the drug, weighing the vial, agitating the container to dissolve its contents, reading a bar code, placing a syringe in a syringe manipulator, and getting an i.v. container and injecting the drug into it. Detection of any errors by a series of self-checks arrests execution of an order. No significant differences in accuracy and precision were found between the robotic system and humans performing the same tasks under simulated conditions. The robotic system required less time than humans and eliminated the possibility of direct human contact with the i.v. admixture. Under simulated conditions, a robotic system developed to assist in the preparation of i.v. antineoplastic drugs was as accurate as a manual system and was more time efficient.

  14. An Approach Using Parallel Architecture to Storage DICOM Images in Distributed File System

    NASA Astrophysics Data System (ADS)

    Soares, Tiago S.; Prado, Thiago C.; Dantas, M. A. R.; de Macedo, Douglas D. J.; Bauer, Michael A.

    2012-02-01

    Telemedicine is a very important area in medical field that is expanding daily motivated by many researchers interested in improving medical applications. In Brazil was started in 2005, in the State of Santa Catarina has a developed server called the CyclopsDCMServer, which the purpose to embrace the HDF for the manipulation of medical images (DICOM) using a distributed file system. Since then, many researches were initiated in order to seek better performance. Our approach for this server represents an additional parallel implementation in I/O operations since HDF version 5 has an essential feature for our work which supports parallel I/O, based upon the MPI paradigm. Early experiments using four parallel nodes, provide good performance when compare to the serial HDF implemented in the CyclopsDCMServer.

  15. 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

    ... (3d year of operation) for a single community (see § 156.3(d) of this chapter). 250.6 Section 250.6...), seeking gas service of not more than 2,000 Mcf per day (3d year of operation) for a single community (see... distribution system project? If you have filed an application for such a certificate, with whom was it...

  16. 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

    ... (3d year of operation) for a single community (see § 156.3(d) of this chapter). 250.6 Section 250.6...), seeking gas service of not more than 2,000 Mcf per day (3d year of operation) for a single community (see... distribution system project? If you have filed an application for such a certificate, with whom was it...

  17. 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

    ... (3d year of operation) for a single community (see § 156.3(d) of this chapter). 250.6 Section 250.6...), seeking gas service of not more than 2,000 Mcf per day (3d year of operation) for a single community (see... distribution system project? If you have filed an application for such a certificate, with whom was it...

  18. Structural system reliability under multiple failure modes

    NASA Technical Reports Server (NTRS)

    Mahadevan, S.; Chamis, C. C.

    1993-01-01

    This paper describes a computational method for system reliability estimation of propulsion structures. The failure domain of the entire structural system is computed through the union of failure regions for various critical system failure modes. The effect of non-critical progressive damage is incorporated through structural reanalysis, resulting in the construction of several linear segments to approximately cover the system failure domain. An adaptive damage imposition scheme is outlined for the sake of computational efficiency. The proposed method is used to construct the system survival cdf (cumulative distribution function) of a two-rotor system.

  19. 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…

  20. Research of Efficient C/S Model Based File Transfer Method

    NASA Astrophysics Data System (ADS)

    Li, Xubin; Zou, Quan; Jiang, Yi

    The one-to-multiple file transfer problem has not been solved under the Linux system. In this paper, we take socket programming to accomplish Client/Server model based file transfer system and develop efficient software which not only support multiple clients and files transferring simultaneously, but also support transmission resuming from breakpoint. Our research focuses on solving the multi-thread concurrency, transmission resuming from breakpoint, thread pool, buffer queue and other aspects of problem. Our work is the basic foundation of FTP servers, file transfer software in local area network and large-scale examination system, etc.

  1. Composition and Realization of Source-to-Sink High-Performance Flows: File Systems, Storage, Hosts, LAN and WAN

    SciTech Connect

    Wu, Chase Qishi

    2016-12-01

    A number of Department of Energy (DOE) science applications, involving exascale computing systems and large experimental facilities, are expected to generate large volumes of data, in the range of petabytes to exabytes, which will be transported over wide-area networks for the purpose of storage, visualization, and analysis. To support such capabilities, significant progress has been made in various components including the deployment of 100 Gbps networks with future 1 Tbps bandwidth, increases in end-host capabilities with multiple cores and buses, capacity improvements in large disk arrays, and deployment of parallel file systems such as Lustre and GPFS. High-performance source-to-sink data flows must be composed of these component systems, which requires significant optimizations of the storage-to-host data and execution paths to match the edge and long-haul network connections. In particular, end systems are currently supported by 10-40 Gbps Network Interface Cards (NIC) and 8-32 Gbps storage Host Channel Adapters (HCAs), which carry the individual flows that collectively must reach network speeds of 100 Gbps and higher. Indeed, such data flows must be synthesized using multicore, multibus hosts connected to high-performance storage systems on one side and to the network on the other side. Current experimental results show that the constituent flows must be optimally composed and preserved from storage systems, across the hosts and the networks with minimal interference. Furthermore, such a capability must be made available transparently to the science users without placing undue demands on them to account for the details of underlying systems and networks. And, this task is expected to become even more complex in the future due to the increasing sophistication of hosts, storage systems, and networks that constitute the high-performance flows. The objectives of this proposal are to (1) develop and test the component technologies and their synthesis methods to

  2. Parallel checksumming of data chunks of a shared data object using a log-structured file system

    DOEpatents

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

    2016-09-06

    Checksum values are generated and used to verify the data integrity. A client executing in a parallel computing system stores a data chunk to a shared data object on a storage node in the parallel computing system. The client determines a checksum value for the data chunk; and provides the checksum value with the data chunk to the storage node that stores the shared object. The data chunk can be stored on the storage node with the corresponding checksum value as part of the shared object. The storage node may be part of a Parallel Log-Structured File System (PLFS), and the client may comprise, for example, a Log-Structured File System client on a compute node or burst buffer. The checksum value can be evaluated when the data chunk is read from the storage node to verify the integrity of the data that is read.

  3. Torsional and cyclic fatigue resistances of glide path preparation instruments: G-file and PathFile.

    PubMed

    Sung, Sang Yup; Ha, Jung-Hong; Kwak, Sang-Won; Abed, Rashid El; Byeon, Kyeongmin; Kim, Hyeon-Cheol

    2014-01-01

    This study aimed to compare cyclic fatigue and torsional resistances of glide path creating instruments with different tapers and tip sizes. Two sizes (G1 and G2) from G-File system and three sizes (PathFile #1, #2, and #3) from PathFile system were used for torsional resistance and cyclic fatigue resistance tests (n = 10). The torsional resistance was evaluated at 2-, 3-, 4-, 5-, and 6-mm from the file tip by plotting the torsional load changes until fracture by rotational loading of 2 rpm. The cyclic fatigue resistance was compared by measuring the number of cycles to failure. Data were analyzed statistically using one-way ANOVA and Duncan's post-hoc comparison. The length of the fractured file fragment was also measured. All fractured fragments were observed under a scanning electron microscope (SEM). Although G-2 file showed a lower torsional strength than PathFile #3 at 2- and 3-mm levels (p < 0.05), they had similar ultimate strengths at 4-, 5-, and 6-mm levels (p > 0.05). The smaller files of each brand had a significantly higher cyclic fatigue resistance than the bigger ones (p < 0.05). PathFile #1 and #2 had higher fatigue resistances than G-files (p < 0.05). While G-1 had a similar fatigue resistance as PathFile #3, G-2 showed the lowest and PathFile #1 showed the highest resistances among the tested groups (p < 0.05). The SEM examination showed typical appearances of cyclic fatigue and torsional fractures, regardless of the tested levels. Clinicians may consider the instruments' sizes for each clinical case in order to get efficient glide path with minimal risk of fracture.

  4. 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.

  5. A new insight into the oscillation characteristics of endosonic files used in dentistry

    NASA Astrophysics Data System (ADS)

    Lea, S. C.; Walmsley, A. D.; Lumley, P. J.; Landini, G.

    2004-05-01

    The aim of this study was to assess the oscillation characteristics of unconstrained endosonic files using a scanning laser vibrometer (SLV). Factors investigated included file vibration frequency and node/antinode location as well as the variation in file displacement amplitude due to increasing generator power setting. A 30 kHz Mini Piezon generator (Electro-Medical Systems, Switzerland) was used in conjunction with a #15 and #35 K-file. Each file was fixed in position with the long axis of the file perpendicular to the SLV camera head. The laser from the SLV was scanned over the length of the oscillating file for generator power settings 1 to 5 (minimum to half power). Measurements were repeated ten times. The fundamental vibration frequency for both files was 27.50 kHz. Scans of each file showed the positions of nodes/anti-nodes along the file length. The #15 file demonstrated no significant variation in its mean maximum displacement amplitude with increasing generator power, except at power setting 5, where a decrease in displacement amplitude was observed. The #35 file showed a general increase in mean maximum displacement amplitude with increasing power setting, except at power setting 4 where a 65% decrease in displacement amplitude occurred. In conclusion, scanning laser vibrometry is an effective method for assessing endosonic file vibration characteristics. The SLV was able to demonstrate that (unloaded) file vibration displacement amplitude does not increase linearly with increasing generator power. Further work is being performed on a greater variety of files and generators. Vibration characteristics of files under various loads and varying degrees of constraint should also be investigated.

  6. 12 CFR 11.4 - Filing fees.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 12 Banks and Banking 1 2011-01-01 2011-01-01 false Filing fees. 11.4 Section 11.4 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE TREASURY SECURITIES EXCHANGE ACT DISCLOSURE RULES § 11.4 Filing fees. (a) The OCC may require filing fees to accompany certain filings made under...

  7. Rhythmic biological systems under microgravity conditions.

    PubMed

    Johnsson, A; Eidesmo, T

    1989-01-01

    Rhythmic phenomena in biology cover a wide frequency spectrum. In Space, the rhythms will encounter microgravity conditions which can, therefore, be a valuable tool for their understanding. A review and discussion of important effects of gravity/absence of gravity on biological systems will be given. Convection will be emphasized as a mechanism which is drastically reduced in Space. Microgravity might also affect the coupling between individual oscillators in a multi-oscillatory system. The environmental interference with rhythms will be discussed with a simple feedback as a starting point. Model simulations will be presented and clinostat and microgravity-conditions will be discussed in a specific case, viz. the gravitropical system of plants which can show sustained oscillations.

  8. Digitizing an Analog Radiography Teaching File Under Time Constraint: Trade-Offs in Efficiency and Image Quality.

    PubMed

    Loehfelm, Thomas W; Prater, Adam B; Debebe, Tequam; Sekhar, Aarti K

    2017-02-01

    We digitized the radiography teaching file at Black Lion Hospital (Addis Ababa, Ethiopia) during a recent trip, using a standard digital camera and a fluorescent light box. Our goal was to photograph every radiograph in the existing library while optimizing the final image size to the maximum resolution of a high quality tablet computer, preserving the contrast resolution of the radiographs, and minimizing total library file size. A secondary important goal was to minimize the cost and time required to take and process the images. Three workers were able to efficiently remove the radiographs from their storage folders, hang them on the light box, operate the camera, catalog the image, and repack the radiographs back to the storage folder. Zoom, focal length, and film speed were fixed, while aperture and shutter speed were manually adjusted for each image, allowing for efficiency and flexibility in image acquisition. Keeping zoom and focal length fixed, which kept the view box at the same relative position in all of the images acquired during a single photography session, allowed unused space to be batch-cropped, saving considerable time in post-processing, at the expense of final image resolution. We present an analysis of the trade-offs in workflow efficiency and final image quality, and demonstrate that a few people with minimal equipment can efficiently digitize a teaching file library.

  9. 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...

  10. 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.

  11. 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.

  12. Orbit of an image under iterated system

    NASA Astrophysics Data System (ADS)

    Singh, S. L.; Mishra, S. N.; Jain, Sarika

    2011-03-01

    An orbital picture depicts the path of an object under semi-group of transformations. The concept initially given by Barnsley [3] has utmost importance in image compression, biological modeling and other areas of fractal geometry. In this paper, we introduce superior iterations to study the role of linear and nonlinear transformations on the orbit of an object. Various characteristics of the computed figures have been discussed to indicate the usefulness of study in mathematical analysis. Modified algorithms are given to compute the orbital picture and V-variable orbital picture. An algorithm to calculate the distance between images makes the study motivating. A brief discussion about the proof of the Cauchy sequence of images is also given.

  13. Automated System Organizations Under Spatial Grasp Technology

    DTIC Science & Technology

    2014-06-01

    This mode of high-level system vision based on holistic and gestalt principles [6-8] rather than cooperating parts or agents [1] has psychological ...M. Wertheimer, “ Gestalt Theory“, Erlangen. Berlin, 1925. [7] P. Sapaty, “ Gestalt -Based Ideology and Technology for Spatial Control of Distributed...Dynamic Systems”, International Gestalt Theory Congress, 16th Scientific Convention of the GTA, University of Osnabrück, Germany, March 26 - 29

  14. 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

  15. Cone-Beam Computed Tomography Assessment of Root Canal Transportation by Neoniti and Reciproc Single-File Systems

    PubMed Central

    Moazzami, Fariborz; Khojastepour, Leila; Nabavizadeh, Mohammadreza; Seied Habashi, Mina

    2016-01-01

    Introduction: The aim of this in vitro study was to compare the canal transportation of two single-file engine-driven systems, Neoniti and Reciproc, using cone-beam computed tomography (CBCT). Methods and Materials: Forty-five non-calcified roots with mature apices and apical curvature of 15-30 degrees were selected from extracted human maxillary molars for this study. Samples were randomly divided into two groups (n=20) and a control group (n=5) and canal preparation with either system was performed according to manufacturers' instructions. Pre- and post-instrumentation CBCT images were captured and the amount of canal transportation within the files was calculated at levels of 3, 4, and 5 mm from the apex. The independent sample t-test was used to analyze the statistical significance between the two groups. The level of significance was defined at 0.05. Results: Reciproc created more canal transportation compared to Neoniti in both mesiodistal and buccolingual directions. The difference between the two systems was statistically significant in all evaluated distances from the apex (P<0.001). During this study fracture of one file (25/0.08) in the Neoniti group occurred. Conclusion: Neoniti and Reciproc systems have significant difference in terms of creating canal transportation. Reciproc created more canal transportation in buccolingual and mesiodistal dimensions. PMID:27141215

  16. Comparison of Cyclic Fatigue Resistance of Five Nickel Titanium Rotary File Systems with Different Manufacturing Techniques

    PubMed Central

    Aminsobhani, Mohsen; Sadri, Ehsan

    2015-01-01

    Objectives: The purpose of this study was to evaluate the resistance to fatigue failure of five different nickel-titanium rotary files in three different curved trajectories. Materials and Methods: A total of 150 Neoniti A1, RaCe 25.06, Mtwo 25.06, Twisted file 25.06 and ProTaper Next X2 files with the tip size of 25 were tested (n=30 for each group). Three groove types simulating curved canals were used differing in radius, arc length and position of the arc, each measuring 1.5 mm in width, 20 mm in total length and 2.5 in depth. Resistance to cyclic fatigue was determined by counting the numbers of cycles to failure. Furthermore, the fragment length of the fractured tips and angle and radius of curvature formed by each file in each trajectory were evaluated. The data were analyzed by t-test, one way ANOVA and Tukey’s HSD test. Results: Neoniti showed the highest and RaCe showed the lowest number of cycles to fracture (NCF) values (P<0.05), indicating the highest and lowest fatigue resistance, respectively. The highest and lowest curvature angles were seen in RaCe and Neoniti, respectively. Regarding the radius of curvature, Twisted file had the lowest and Neoniti had the highest values. The mean NCF of all rotary files was lower in the more coronally curved trajectory. Conclusion: The fatigue resistance of the evaluated rotary files was lower in more coronally located curvatures. Neoniti exhibited the highest and RaCe exhibited the lowest fatigue resistance compared to other evaluated files. PMID:27148374

  17. 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 ~3.8 GPa and hydrogen solidified at ~5.5 GPa, transition pressures equivalent to those observed for the pure components. A P-x phase diagram for the NH3-H2 system is proposed on the basis of these observations with implications for planetary ices, molecular compound formation, and possible hydrogen storage materials.

  18. Cleaning Effectiveness of a Reciprocating Single-file and a Conventional Rotary Instrumentation System

    PubMed Central

    de Carvalho, Fredson Marcio Acris; Gonçalves, Leonardo Cantanhede de Oliveira; Marques, André Augusto Franco; Alves, Vanessa; Bueno, Carlos Eduardo da Silveira; De Martin, Alexandre Sigrist

    2016-01-01

    Objective: To compare cleaning effectiveness by histological analysis of a reciprocating single-file system with ProTaper rotary instruments during the preparation of curved root canals in extracted teeth. Methods: A total of 40 root canals with curvatures ranging between 20 - 40 degrees were divided into two groups of 20 canals. Canals were prepared to the following apical sizes: Reciproc size 25 (n=20); ProTaper: F2 (n=20). The normal distribution of data was tested by the Kolmogorov-Smirnov test and the values obtained for the test (Mann-Whitney U test, P < .05) were statistically analyzed using the GraphPad InStat for the Mac OS software (GraphPad Software, La Jolla, CA, USA). Results: There were no significant differences in remaining debris (P > .05) between the two groups. Conclusion: The application of reciprocating motion during instrumentation did not result in increased debris when compared with continuous rotation motion, even in the apical part of curved canals. Both instruments resulted in debris in the canal lumen, irrespective of the movement kinematics applied. PMID:28217185

  19. Comparative study of the variability of 0.06 tapered rotary endodontic files to current taper standards.

    PubMed

    Hatch, Garth W; Roberts, Steven; Joyce, Anthony P; Runner, Royce; McPherson, James C

    2008-04-01

    This study compared the taper variation among Profile, Guidance, and EndoSequence 0.06 tapered rotary files to current standards. Fifteen files of sizes 35, 40, and 45 from each manufacturer were evaluated for a total of 135 files. A digital image of the first 4 mm of each file was captured with light microscope at 22x, calibrated for 0.001-mm accuracy, and analyzed. The diameter of each file was measured at 1 and 4 mm, and the taper was calculated. Of the 3 file systems, 100% of the Profile files, 97.8% of the Guidance files, and 86.7% of the EndoSequence files fell within +/-0.02 taper. All file systems demonstrated variability within their groups. A series of chi(2) analyses indicated that manufacturers tend to produce Guidance and Profile tapers slightly under the ideal 0.06 taper (P < .05). The tapers of EndoSequence files were just as likely to be over or under the advertised 0.06 taper (P > .05).

  20. 46 CFR 531.5 - 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. 531.5 Section 531.5 Shipping FEDERAL... General Provisions § 531.5 Duty to file. (a) The duty under this part to file NSAs, amendments and notices.... (d) Registration—(1) Application. Authority to file or delegate the authority to file must...

  1. 76 FR 1422 - Combined Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-10

    ... has received the following Natural Gas Pipeline Rate and Refund Report filings: Docket Numbers: RP11... submits tariff filing per 154.312: General Section 4 Rate Case to be effective 2/1/ 2011. Filed Date: 12...: Iroquois Gas Transmission System, L.P. submits tariff filing per 154.204: 12/30/10 Negotiated...

  2. 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...

  3. 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,...

  4. 49 CFR 236.913 - Filing and approval of PSPs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ..., INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Standards for Processor-Based Signal and Train Control Systems § 236.913 Filing and approval of PSPs. (a) Under... material modification of signal and train control systems remain governed by parts 235 and 211 of...

  5. 49 CFR 236.913 - Filing and approval of PSPs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ..., INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Standards for Processor-Based Signal and Train Control Systems § 236.913 Filing and approval of PSPs. (a) Under... material modification of signal and train control systems remain governed by parts 235 and 211 of...

  6. Physical Properties of Five Brands of K-Files

    PubMed Central

    Izadi, Arash; Shahravan, Arash; Shabani Nejad, Hoda

    2016-01-01

    Introduction: Endodontic K-files are major tools for cleaning and shaping of the root canal systems. As there are various K-files available in Iranian market, the physical properties of the five available brands were investigated to assist the clinician when selecting suitable endodontic K-files according to the intended application. Materials and Methods: Physical properties (including debris creation, machinery defect and corrosion) of the selected K-files were investigated by a scanning electron microscope (SEM) under ×250 magnification. For evaluating the flutes number, a stereomicroscope was used with ×40 magnification. Results: Maximum and minimum debris and corrosion were observed in the Larmrose and Perfect K-files, respectively. Dentsply showed the least machinery defects. Other brands had intermediary properties. In addition, Larmrose K-files showed the maximum flutes number compared to the other brands. Conclusion: According to the results, none of the K-files had the ideal properties. More studies regarding the physical properties of the K-files and their clinical efficacy are suggested. PMID:27141219

  7. 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.

  8. 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.

  9. 12 CFR 303.221 - Filing procedures.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... PROCEDURES Section 19 of the FDI Act (Consent to Service of Persons Convicted of Certain Criminal Offenses) § 303.221 Filing procedures. (a) Where to file. An application under section 19 of the FDI Act shall...

  10. 12 CFR 303.221 - Filing procedures.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... PROCEDURES Section 19 of the FDI Act (Consent to Service of Persons Convicted of Certain Criminal Offenses) § 303.221 Filing procedures. (a) Where to file. An application under section 19 of the FDI Act shall...

  11. 12 CFR 303.221 - Filing procedures.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... PROCEDURES Section 19 of the FDI Act (Consent to Service of Persons Convicted of Certain Criminal Offenses) § 303.221 Filing procedures. (a) Where to file. An application under section 19 of the FDI Act shall...

  12. 12 CFR 303.221 - Filing procedures.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... PROCEDURES Section 19 of the FDI Act (Consent to Service of Persons Convicted of Certain Criminal Offenses) § 303.221 Filing procedures. (a) Where to file. An application under section 19 of the FDI Act shall...

  13. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... to be filed under 11 CFR parts 101, 102, 104, 105, 107, 108, and 109, and any modifications or...) Where to deliver reports. Except for documents electronically filed under paragraph (c) of this section...., Washington, DC 20463; or the Secretary of the United States Senate, Office of Public Records, 119 D Street...

  14. 78 FR 79690 - California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-31

    ... [Federal Register Volume 78, Number 251 (Tuesday, December 31, 2013)] [Notices] [Pages 79690-79691] [FR Doc No: 2013-31254] DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL05-146.... Dated: December 23, 2013. Kimberly D. Bose, Secretary. [FR Doc. 2013-31254 Filed 12-30-13; 8:45...

  15. A low-cost digital filing system for echocardiography data with MPEG4 compression and its application to remote diagnosis.

    PubMed

    Umeda, Akira; Iwata, Yasushi; Okada, Yasumasa; Shimada, Megumi; Baba, Akiyasu; Minatogawa, Yasuyuki; Yamada, Takayasu; Chino, Masao; Watanabe, Takafumi; Akaishi, Makoto

    2004-12-01

    The high cost of digital echocardiographs and the large size of data files hinder the adoption of remote diagnosis of digitized echocardiography data. We have developed a low-cost digital filing system for echocardiography data. In this system, data from a conventional analog echocardiograph are captured using a personal computer (PC) equipped with an analog-to-digital converter board. Motion picture data are promptly compressed using a moving pictures expert group (MPEG) 4 codec. The digitized data with preliminary reports obtained in a rural hospital are then sent to cardiologists at distant urban general hospitals via the internet. The cardiologists can evaluate the data using widely available movie-viewing software (Windows Media Player). The diagnostic accuracy of this double-check system was confirmed by comparison with ordinary super-VHS videotapes. We have demonstrated that digitization of echocardiography data from a conventional analog echocardiograph and MPEG 4 compression can be performed using an ordinary PC-based system, and that this system enables highly efficient digital storage and remote diagnosis at low cost.

  16. 47 CFR 61.14 - Method of filing publications.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 3 2012-10-01 2012-10-01 false Method of filing publications. 61.14 Section 61...) TARIFFS Rules for Electronic Filing § 61.14 Method of filing publications. (a) Publications filed... date of a publication received by the Electronic Tariff Filing System will be determined by the...

  17. 47 CFR 61.14 - Method of filing publications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Method of filing publications. 61.14 Section 61...) TARIFFS Rules for Electronic Filing § 61.14 Method of filing publications. (a) Publications filed... date of a publication received by the Electronic Tariff Filing System will be determined by the...

  18. 47 CFR 61.14 - Method of filing publications.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 3 2014-10-01 2014-10-01 false Method of filing publications. 61.14 Section 61...) TARIFFS Rules for Electronic Filing § 61.14 Method of filing publications. (a) Publications filed... date of a publication received by the Electronic Tariff Filing System will be determined by the...

  19. A Dual System Model of Preferences under Risk

    ERIC Educational Resources Information Center

    Mukherjee, Kanchan

    2010-01-01

    This article presents a dual system model (DSM) of decision making under risk and uncertainty according to which the value of a gamble is a combination of the values assigned to it independently by the affective and deliberative systems. On the basis of research on dual process theories and empirical research in Hsee and Rottenstreich (2004) and…

  20. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims for benefits electronically. (a) Electronic filing. A claim for benefits under the Railroad Unemployment Insurance Act may be filed electronically through...

  1. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims for benefits electronically. (a) Electronic filing. A claim for benefits under the Railroad Unemployment Insurance Act may be filed electronically through...

  2. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims for benefits electronically. (a) Electronic filing. A claim for benefits under the Railroad Unemployment Insurance Act may be filed electronically through...

  3. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims for benefits electronically. (a) Electronic filing. A claim for benefits under the Railroad Unemployment Insurance Act may be filed electronically through...

  4. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims for benefits electronically. (a) Electronic filing. A claim for benefits under the Railroad Unemployment Insurance Act may be filed electronically through...

  5. EPA FRS Facilities State Single File CSV Download

    EPA Pesticide Factsheets

    This page provides state comma separated value (CSV) files containing key information of all facilities and sites within the Facility Registry System (FRS). Each state zip file contains a single CSV file of key facility-level information.

  6. 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....

  7. Three-dimensional modeling of supine human and transport system under whole-body vibration.

    PubMed

    Wang, Yang; Rahmatalla, Salam

    2013-06-01

    The development of predictive computer human models in whole-body vibration has shown some success in predicting simple types of motion, mostly for seated positions and in the uniaxial vertical direction. The literature revealed only a handful of papers that tackled supine human modeling in response to vertical vibration. The objective of this work is to develop a predictive, multibody, three-dimensional human model to simulate the supine human and underlying transport system in response to multidirectional whole-body vibration. A three-dimensional dynamic model of a supine human and its underlying transport system is presented in this work to predict supine-human biodynamic response under three-dimensional input random whole-body vibration. The proposed supine-human model consists of three interconnected segments representing the head, torso-arms, and pelvis-legs. The segments are connected via rotational and translational joints that have spring-damper components simulating the three-dimensional muscles and tissuelike connecting elements in the three x, y, and z directions. Two types of transport systems are considered in this work, a rigid support and a long spinal board attached to a standard military litter. The contact surfaces between the supine human and the underlying transport system are modeled using spring-damper components. Eight healthy supine human subjects were tested under combined-axis vibration files with a magnitude of 0.5 m/s2 (rms) and a frequency content of 0.5-16 Hz. The data from seven subjects were used in parameter identification for the dynamic model using optimization schemes in the frequency domain that minimize the differences between the magnitude and phase of the predicted and experimental transmissibility. The predicted accelerations in the time and frequency domains were comparable to those gathered from experiments under different anthropometric, input vibration, and transport conditions under investigation. Based on the

  8. A scalable infrastructure for CMS data analysis based on OpenStack Cloud and Gluster file system

    NASA Astrophysics Data System (ADS)

    Toor, S.; Osmani, L.; Eerola, P.; Kraemer, O.; Lindén, T.; Tarkoma, S.; White, J.

    2014-06-01

    The challenge of providing a resilient and scalable computational and data management solution for massive scale research environments requires continuous exploration of new technologies and techniques. In this project the aim has been to design a scalable and resilient infrastructure for CERN HEP data analysis. The infrastructure is based on OpenStack components for structuring a private Cloud with the Gluster File System. We integrate the state-of-the-art Cloud technologies with the traditional Grid middleware infrastructure. Our test results show that the adopted approach provides a scalable and resilient solution for managing resources without compromising on performance and high availability.

  9. 78 FR 43875 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-22

    ... following electric corporate filings: Docket Numbers: EC13-129-000. Applicants: Arizona Solar One LLC. Description: Application of Arizona Solar One LLC for Authorization under Section 203 of the Federal Power Act... Independent System Operator Corporation. Description: California Independent System Operator...

  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

    ...) Defaults by the debtor in performance under the plan. (f) UST Form 101-12-FR-C, Chapter 12 Case Trustee's... in performance under the plan. (g) Mandatory Usage of Uniform Forms. The Uniform Forms associated... remain consistent with the Uniform Forms as they are posted on EOUST's Web site; (2) The Uniform...

  11. Single file reciprocating systems: A systematic review and meta-analysis of the literature: Comparison of reciproc and WaveOne

    PubMed Central

    Alsilani, Rana; Jadu, Fatima; Bogari, Dania F.; Jan, Ahmed M.; Alhazzazi, Turki Y.

    2016-01-01

    The introduction of single-file nickel-titanium (NiTi) reciprocating systems has been a major breakthrough in the field of endodontics. Thus, the aim of this study was to compare the available reciprocating systems, Reciproc and WaveOne, using a meta-analysis with different parameters. A comprehensive electronic literature search for Reciproc and WaveOne using PubMed and Google scholar was initially conducted in September 2014 and updated in September 2016. Inclusion and exclusion criteria were then established. Twenty-six studies were qualified for the systematic review, and only three studies were considered for the meta-analysis using cyclic fatigue resistance as the main parameter. The time to fracture for the Reciproc and WaveOne systems ranged from 119.7 sec to 156.4 sec and 74.8 sec to 99.6 sec, respectively. The pooled difference in mean time to fracture was longer for the Reciproc system by 45.6 sec. This difference was statistically significantly at P value < 0.001. In conclusion, our study supports the finding that Reciproc is more resistant to cyclic fatigue than WaveOne. However, with regard to other parameters, mixed results were obtained. Well-designed randomized clinical trials comparing both systems under the same experimental conditions should be done in future studies. PMID:27891305

  12. Modeling and simulation of a high-performance PACS based on a shared file system architecture

    NASA Astrophysics Data System (ADS)

    Meredith, Glenn; Anderson, Kenneth R.; Wirsz, Emil; Prior, Fred W.; Wilson, Dennis L.

    1992-07-01

    Siemens and Loral Western Development Labs have designed a Picture Archiving and Communication System capable of supporting a large, fully digital hospital. Its functions include the management, storage and retrieval of medical images. The system may be modeled as a heterogeneous network of processing elements, transfer devices and storage units. Several discrete event simulation models have been designed to investigate different levels of the design. These models include the System Model, focusing on the flow of image traffic throughout the system, the Workstation Models, focusing on the internal processing in the different types of workstations, and the Communication Network Model, focusing on the control communication and host computer processing. The first two of these models are addressed here, with reference being made to a separate paper regarding the Communication Network Model. This paper describes some of the issues addressed with the models, the modeling techniques used and the performance results from the simulations. Important parameters of interest include: time to retrieve images from different possible storage locations and the utilization levels of the transfer devices and other key hardware components. To understand system performance under fully loaded conditions, the proposed system for the Madigan Army Medical Center was modeled in detail, as part of the Medical Diagnostic Imaging Support System (MDIS) proposal.

  13. Comparison of Postoperative Pain after Root Canal Preparation with Two Reciprocating and Rotary Single-File Systems: A Randomized Clinical Trial

    PubMed Central

    Mollashahi, Narges Farhad; Saberi, Eshagh Ali; Havaei, Seyed Rohollah; Sabeti, Mohammad

    2017-01-01

    Introduction: Root canal preparation techniques may cause postoperative pain. The aim of the present study was to compare the intensity of postoperative pain after endodontic treatment using hand files, single file rotary (OneShape), and single file reciprocating (Reciproc) systems. Methods and Materials: In this single-blind, parallel-grouped randomized clinical trial a total of 150 healthy patients aged between 20 to 50 years old were diagnosed with symptomatic irreversible pulpitis of one maxillary or mandibular molars. The teeth were randomly assigned to three groups according to the root canal instrumentation technique: hand files (control), OneShape and Reciproc. Treatment was performed in a single visit by an endodontist. The severity of the postoperative pain was assessed by the visual analogue scale (VAS) after 6, 12, 24, 48 and 72 h. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U tests. Results: The patients in control group reported significantly higher mean postoperative pain intensity at 12, 24, 48, and 72 h compared to the patients in the two other groups (P<0.05). There was no significant difference in mean intensity of postoperative pain between Reciproc and OneShape at 5 time points (P>0.05). Conclusion: The instrumentation kinematics (single-file reciprocating or single-file rotary) had no impact on intensity of postoperative pain. PMID:28179917

  14. Efficient diagnosis of multiprocessor systems under probabilistic models

    NASA Technical Reports Server (NTRS)

    Blough, Douglas M.; Sullivan, Gregory F.; Masson, Gerald M.

    1989-01-01

    The problem of fault diagnosis in multiprocessor systems is considered under a probabilistic fault model. The focus is on minimizing the number of tests that must be conducted in order to correctly diagnose the state of every processor in the system with high probability. A diagnosis algorithm that can correctly diagnose the state of every processor with probability approaching one in a class of systems performing slightly greater than a linear number of tests is presented. A nearly matching lower bound on the number of tests required to achieve correct diagnosis in arbitrary systems is also proven. Lower and upper bounds on the number of tests required for regular systems are also presented. A class of regular systems which includes hypercubes is shown to be correctly diagnosable with high probability. In all cases, the number of tests required under this probabilistic model is shown to be significantly less than under a bounded-size fault set model. Because the number of tests that must be conducted is a measure of the diagnosis overhead, these results represent a dramatic improvement in the performance of system-level diagnosis techniques.

  15. 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.

  16. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... NATIONALITY ACT LIFE Act Amendments Family Unity Provisions § 245a.33 Filing. (a) General. An application for Family Unity benefits under section 1504 of the LIFE Act Amendments must be filed on a Form I-817, Application for Family Unity Benefits, with the Missouri Service Center. A Form I-817 must be filed with...

  17. 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...

  18. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 8 Aliens and Nationality 1 2011-01-01 2011-01-01 false Filing. 245a.33 Section 245a.33 Aliens and... NATIONALITY ACT LIFE Act Amendments Family Unity Provisions § 245a.33 Filing. (a) General. An application for Family Unity benefits under section 1504 of the LIFE Act Amendments must be filed on a Form...

  19. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 8 Aliens and Nationality 1 2013-01-01 2013-01-01 false Filing. 245a.33 Section 245a.33 Aliens and... ACT LIFE Act Amendments Family Unity Provisions § 245a.33 Filing. (a) General. An application for Family Unity benefits under section 1504 of the LIFE Act Amendments must be filed on a Form...

  20. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 8 Aliens and Nationality 1 2014-01-01 2014-01-01 false Filing. 245a.33 Section 245a.33 Aliens and... ACT LIFE Act Amendments Family Unity Provisions § 245a.33 Filing. (a) General. An application for Family Unity benefits under section 1504 of the LIFE Act Amendments must be filed on a Form...

  1. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 8 Aliens and Nationality 1 2012-01-01 2012-01-01 false Filing. 245a.33 Section 245a.33 Aliens and... ACT LIFE Act Amendments Family Unity Provisions § 245a.33 Filing. (a) General. An application for Family Unity benefits under section 1504 of the LIFE Act Amendments must be filed on a Form...

  2. 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...

  3. 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)

  4. 77 FR 70426 - Combined Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ... following Natural Gas Pipeline Rate and Refund Report filings: Filings Instituting Proceedings Docket...-000. Applicants: Iroquois Gas Transmission System, L.P. ] Description: 11/15/12 Negotiated Rates--BG...: Iroquois Gas Transmission System, L.P. Description: 11/15/12 HUB Negotiated Rates Blanket Filing 2 to...

  5. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... attorneys in chapter 7 and chapter 11, but may be used by all professionals as appropriate. Asset Analysis... motions; analyses, objections and allowances of claims. Employee Benefits/Pensions: Review issues such as...: Matters under §§ 361, 363 and 364 including cash collateral and secured claims; loan document...

  6. 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

    ... attorneys in chapter 7 and chapter 11, but may be used by all professionals as appropriate. Asset Analysis... motions; analyses, objections and allowances of claims. Employee Benefits/Pensions: Review issues such as...: Matters under §§ 361, 363 and 364 including cash collateral and secured claims; loan document...

  7. 28 CFR Appendix A to Part 58 - Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... attorneys in chapter 7 and chapter 11, but may be used by all professionals as appropriate. Asset Analysis... motions; analyses, objections and allowances of claims. Employee Benefits/Pensions: Review issues such as...: Matters under §§ 361, 363 and 364 including cash collateral and secured claims; loan document...

  8. 76 FR 61667 - Proposed Foreign-Trade Zone-West Tennessee Area Under Alternative Site Framework; Application Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ..., adjacent to the Memphis Customs and Border Protection (CBP) port of entry, under the alternative site... International Trade Development Corporation, Board Order 904, July 2, 1997); FTZ 262, Southaven, Mississippi... allows for the possible exemption of one magnet site from the ``sunset'' time limits that generally...

  9. Economic viability of beef cattle grazing systems under prolonged drought

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Prolonged drought in the Southern Great Plains of the USA in recent years has raised concerns about vulnerability of beef cattle grazing systems under adverse climate change. To help address the economic viability of beef grazing operations in the Southern Great Plains, this paper provides an econom...

  10. "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…

  11. 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

  12. 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.

  13. Parallel compression of data chunks of a shared data object using a log-structured file system

    DOEpatents

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

    2016-10-25

    Techniques are provided for parallel compression of data chunks being written to a shared object. A client executing on a compute node or a burst buffer node in a parallel computing system stores a data chunk generated by the parallel computing system to a shared data object on a storage node by compressing the data chunk; and providing the data compressed data chunk to the storage node that stores the shared object. The client and storage node may employ Log-Structured File techniques. The compressed data chunk can be de-compressed by the client when the data chunk is read. A storage node stores a data chunk as part of a shared object by receiving a compressed version of the data chunk from a compute node; and storing the compressed version of the data chunk to the shared data object on the storage node.

  14. Usage analysis of user files in UNIX

    NASA Technical Reports Server (NTRS)

    Devarakonda, Murthy V.; Iyer, Ravishankar K.

    1987-01-01

    Presented is a user-oriented analysis of short term file usage in a 4.2 BSD UNIX environment. The key aspect of this analysis is a characterization of users and files, which is a departure from the traditional approach of analyzing file references. Two characterization measures are employed: accesses-per-byte (combining fraction of a file referenced and number of references) and file size. This new approach is shown to distinguish differences in files as well as users, which cam be used in efficient file system design, and in creating realistic test workloads for simulations. A multi-stage gamma distribution is shown to closely model the file usage measures. Even though overall file sharing is small, some files belonging to a bulletin board system are accessed by many users, simultaneously and otherwise. Over 50% of users referenced files owned by other users, and over 80% of all files were involved in such references. Based on the differences in files and users, suggestions to improve the system performance were also made.

  15. 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...

  16. 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...

  17. Completeness assessment of type II active pharmaceutical ingredient drug master files under generic drug user fee amendment: review metrics and common incomplete items.

    PubMed

    Zhang, Huyi; Li, Haitao; Song, Wei; Shen, Diandian; Skanchy, David; Shen, Kun; Lionberger, Robert A; Rosencrance, Susan M; Yu, Lawrence X

    2014-09-01

    Under the Generic Drug User Fee Amendments (GDUFA) of 2012, Type II active pharmaceutical ingredient (API) drug master files (DMFs) must pay a user fee and pass a Completeness Assessment (CA) before they can be referenced in an Abbreviated New Drug Application (ANDA), ANDA amendment, or ANDA prior approval supplement (PAS). During the first year of GDUFA implementation, from October 1, 2012 to September 30, 2013, approximately 1,500 Type II API DMFs received at least one cycle of CA review and more than 1,100 Type II DMFs were deemed complete and published on FDA's "Available for Reference List". The data from CA reviews were analyzed for factors that influenced the CA review process and metrics, as well as the areas of DMF submissions which most frequently led to an incomplete CA status. The metrics analysis revealed that electronic DMFs appear to improve the completeness of submission and shorten both the review and response times. Utilizing the CA checklist to compile and proactively update the DMFs improves the chance for the DMFs to pass the CA in the first cycle. However, given that the majority of DMFs require at least two cycles of CA before being deemed complete, it is recommended that DMF fees are paid 6 months in advance of the ANDA submissions in order to avoid negatively impacting the filling status of the ANDAs.

  18. 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

    ... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2″ by... Congress Information System (LOCIS). Alternative ways to connect through Internet are the World Wide Web... them through the Library of Congress Home Page on the World Wide Web by selecting the copyright...

  19. 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

    ... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2″ by... Congress Information System (LOCIS). Alternative ways to connect through Internet are the World Wide Web... them through the Library of Congress Home Page on the World Wide Web by selecting the copyright...

  20. 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

    ... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2″ by... Congress Information System (LOCIS). Alternative ways to connect through Internet are the World Wide Web... them through the Library of Congress Home Page on the World Wide Web by selecting the copyright...

  1. 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

    ... in English, and should be typed or legibly printed by hand in dark, preferably black ink, on 81/2″ by... Congress Information System (LOCIS). Alternative ways to connect through Internet are the World Wide Web... them through the Library of Congress Home Page on the World Wide Web by selecting the copyright...

  2. 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.

  3. 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...

  4. 5 CFR 2471.5 - Filing and service.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... facsimile machine of its office. A party submitting a request by facsimile shall also file an original for... transmitted electronically or to the facsimile machine of the Panel's office, but only with advance permission...'s eFiling system, the filing party shall certify, in the FLRA's eFiling system and at the time...

  5. 47 CFR 1.10006 - Is electronic filing mandatory?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 1 2011-10-01 2011-10-01 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...

  6. 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...

  7. 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

  8. Land Boundary Conditions for the Goddard Earth Observing System Model Version 5 (GEOS-5) Climate Modeling System: Recent Updates and Data File Descriptions

    NASA Technical Reports Server (NTRS)

    Mahanama, Sarith P.; Koster, Randal D.; Walker, Gregory K.; Takacs, Lawrence L.; Reichle, Rolf H.; De Lannoy, Gabrielle; Liu, Qing; Zhao, Bin; Suarez, Max J.

    2015-01-01

    The Earths land surface boundary conditions in the Goddard Earth Observing System version 5 (GEOS-5) modeling system were updated using recent high spatial and temporal resolution global data products. The updates include: (i) construction of a global 10-arcsec land-ocean lakes-ice mask; (ii) incorporation of a 10-arcsec Globcover 2009 land cover dataset; (iii) implementation of Level 12 Pfafstetter hydrologic catchments; (iv) use of hybridized SRTM global topography data; (v) construction of the HWSDv1.21-STATSGO2 merged global 30 arc second soil mineral and carbon data in conjunction with a highly-refined soil classification system; (vi) production of diffuse visible and near-infrared 8-day MODIS albedo climatologies at 30-arcsec from the period 2001-2011; and (vii) production of the GEOLAND2 and MODIS merged 8-day LAI climatology at 30-arcsec for GEOS-5. The global data sets were preprocessed and used to construct global raster data files for the software (mkCatchParam) that computes parameters on catchment-tiles for various atmospheric grids. The updates also include a few bug fixes in mkCatchParam, as well as changes (improvements in algorithms, etc.) to mkCatchParam that allow it to produce tile-space parameters efficiently for high resolution AGCM grids. The update process also includes the construction of data files describing the vegetation type fractions, soil background albedo, nitrogen deposition and mean annual 2m air temperature to be used with the future Catchment CN model and the global stream channel network to be used with the future global runoff routing model. This report provides detailed descriptions of the data production process and data file format of each updated data set.

  9. The large data base file structure dilemma.

    PubMed

    Lefkovitz, D

    1975-02-01

    This paper first presents a brief tutorial on the principal random file organization methods for handling two major applications--Transaction oriented systems and information storage and retrieval systems. It then addresses a particular large data base dilemma, not satisfactorily resolved by any of these methods, and which is currently under active investigation. Two approaches to a solution are described. One is called the hybrid inverted list; the other is based upon an old technique called super-imposed coding. The former has been implemented and has recently been installed in an operational system. Some statistics related to file characteristics in this application are provided, but operational cost and performance statistics are not yet available.

  10. Spin system trajectory analysis under optimal control pulses

    NASA Astrophysics Data System (ADS)

    Kuprov, Ilya

    2013-08-01

    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.

  11. 10 CFR 205.372 - Filing procedures; number of copies.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ....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...

  12. 10 CFR 205.372 - Filing procedures; number of copies.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ....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...

  13. 10 CFR 205.372 - Filing procedures; number of copies.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ....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...

  14. 10 CFR 205.372 - Filing procedures; number of copies.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ....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...

  15. 43 CFR 4.1391 - Who may file; where to file; when to file; filing of administrative record.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ..., 801 N. Quincy Street, Suite 300, Arlington, VA 22203 (telephone 703-235-3750). OSM shall file the complete administrative record of the determination under review with the Board as soon as practicable....

  16. Tracking problem for electromechanical system under influence of external perturbations

    NASA Astrophysics Data System (ADS)

    Kochetkov, Sergey A.; Krasnova, Svetlana A.; Utkin, Victor A.

    2017-01-01

    For electromechanical objects the new control algorithms (vortex algprithms) are developed on the base of discontinuous functions. The distinctive feature of these algorithms is providing of asymptotical convergence of the output variables to zero under influence of unknown bounded disturbances of prescribed class. The advantages of proposed approach is demonstrated for direct current motor with permanent excitation. It is shown that inner variables of the system converge to unknown bounded disturbances and guarantee asymptotical convergence of output variables to zero.

  17. 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)

  18. 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)

  19. 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

  20. 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.

  1. 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

  2. Clinical Accuracy of the Respiratory Tumor Tracking System of the CyberKnife: Assessment by Analysis of Log Files

    SciTech Connect

    Hoogeman, Mischa Prevost, Jean-Briac; Nuyttens, Joost; Poell, Johan; Levendag, Peter; Heijmen, Ben

    2009-05-01

    Purpose: To quantify the clinical accuracy of the respiratory motion tracking system of the CyberKnife treatment device. Methods and Materials: Data in log files of 44 lung cancer patients treated with tumor tracking were analyzed. Errors in the correlation model, which relates the internal target motion with the external breathing motion, were quantified. The correlation model error was compared with the geometric error obtained when no respiratory tracking was used. Errors in the prediction method were calculated by subtracting the predicted position from the actual measured position after 192.5 ms (the time lag to prediction in our current system). The prediction error was also measured for a time lag of 115 ms and a new prediction method. Results: The mean correlation model errors were less than 0.3 mm. Standard deviations describing intrafraction variations around the whole-fraction mean error were 0.2 to 1.9 mm for cranio-caudal, 0.1 to 1.9 mm for left-right, and 0.2 to 2.5 mm for anterior-posterior directions. Without the use of respiratory tracking, these variations would have been 0.2 to 8.1 mm, 0.2 to 5.5 mm, and 0.2 to 4.4 mm. The overall mean prediction error was small (0.0 {+-} 0.0 mm) for all directions. The intrafraction standard deviation ranged from 0.0 to 2.9 mm for a time delay of 192.5 ms but was halved by using the new prediction method. Conclusions: Analyses of the log files of real clinical cases have shown that the geometric error caused by respiratory motion is substantially reduced by the application of respiratory motion tracking.

  3. 43 CFR 4.1291 - Where to file; time for filing.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... APPEALS PROCEDURES Special Rules Applicable to Surface Coal Mining Hearings and Appeals Petitions for Award of Costs and Expenses Under Section 525(e) of the Act § 4.1291 Where to file; time for filing. The petition for an award of costs and expenses including attorneys' fees must be filed with the...

  4. 43 CFR 4.1291 - Where to file; time for filing.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... APPEALS PROCEDURES Special Rules Applicable to Surface Coal Mining Hearings and Appeals Petitions for Award of Costs and Expenses Under Section 525(e) of the Act § 4.1291 Where to file; time for filing. The petition for an award of costs and expenses including attorneys' fees must be filed with the...

  5. Numerical experiments in ringing of offshore systems under viscous loads

    SciTech Connect

    Gurley, K.R.; Kareem, A.

    1996-12-31

    A phenomenon which has recently received much attention in offshore engineering is the ringing response of structures. This high frequency transient type response has been observed in nature, particularly in tension leg platforms (TLPs). Given the implications of this behavior on the fatigue life of tendons, it is important that it be considered for response analysis. Significant progress has been made in recent years in identifying the nonlinear mechanisms that induce ringing in complex offshore structural systems. This introductory study-uses a simple model to numerically demonstrates several of the more salient features that are commonly cited in current literature, and shows that viscous loads may result in inducing ringing type response of members under certain conditions. Ringing response in pitch due to viscous loading is simulated on a column piercing the surface, and the significant contributing force mechanisms are identified. System characteristics are altered to ameliorate the performance of these systems.

  6. 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

  7. Operator adaptation to changes in system reliability under adaptable automation.

    PubMed

    Chavaillaz, Alain; Sauer, Juergen

    2016-11-25

    This experiment examined how operators coped with a change in system reliability between training and testing. Forty participants were trained for 3 h on a complex process control simulation modelling six levels of automation (LOA). In training, participants either experienced a high- (100%) or low-reliability system (50%). The impact of training experience on operator behaviour was examined during a 2.5 h testing session, in which participants either experienced a high- (100%) or low-reliability system (60%). The results showed that most operators did not often switch between LOA. Most chose an LOA that relieved them of most tasks but maintained their decision authority. Training experience did not have a strong impact on the outcome measures (e.g. performance, complacency). Low system reliability led to decreased performance and self-confidence. Furthermore, complacency was observed under high system reliability. Overall, the findings suggest benefits of adaptable automation because it accommodates different operator preferences for LOA. Practitioner Summary: The present research shows that operators can adapt to changes in system reliability between training and testing sessions. Furthermore, it provides evidence that each operator has his/her preferred automation level. Since this preference varies strongly between operators, adaptable automation seems to be suitable to accommodate these large differences.

  8. 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.

  9. Local thermodynamic equilibrium for globally disequilibrium open systems under stress

    NASA Astrophysics Data System (ADS)

    Podladchikov, Yury

    2016-04-01

    Predictive modeling of far and near equilibrium processes is essential for understanding of patterns formation and for quantifying of natural processes that are never in global equilibrium. Methods of both equilibrium and non-equilibrium thermodynamics are needed and have to be combined. For example, predicting temperature evolution due to heat conduction requires simultaneous use of equilibrium relationship between internal energy and temperature via heat capacity (the caloric equation of state) and disequilibrium relationship between heat flux and temperature gradient. Similarly, modeling of rocks deforming under stress, reactions in system open for the porous fluid flow, or kinetic overstepping of the equilibrium reaction boundary necessarily needs both equilibrium and disequilibrium material properties measured under fundamentally different laboratory conditions. Classical irreversible thermodynamics (CIT) is the well-developed discipline providing the working recipes for the combined application of mutually exclusive experimental data such as density and chemical potential at rest under constant pressure and temperature and viscosity of the flow under stress. Several examples will be presented.

  10. 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.

  11. 75 FR 17404 - Twin Valleys Public Power District; Notice of Preliminary Permit Application Accepted for Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ... on the Commission's website ( http://www.ferc.gov/docs-filing/ferconline.asp ) under the ``eFiling...Library'' link of Commission's website at http://www.ferc.gov/docs-filing/elibrary.asp . Enter the...

  12. Fail-over file transfer process

    NASA Technical Reports Server (NTRS)

    Semancik, Susan K. (Inventor); Conger, Annette M. (Inventor)

    2005-01-01

    The present invention provides a fail-over file transfer process to handle data file transfer when the transfer is unsuccessful in order to avoid unnecessary network congestion and enhance reliability in an automated data file transfer system. If a file cannot be delivered after attempting to send the file to a receiver up to a preset number of times, and the receiver has indicated the availability of other backup receiving locations, then the file delivery is automatically attempted to one of the backup receiving locations up to the preset number of times. Failure of the file transfer to one of the backup receiving locations results in a failure notification being sent to the receiver, and the receiver may retrieve the file from the location indicated in the failure notification when ready.

  13. Effectiveness of various irrigation activation protocols and the self-adjusting file system on smear layer and debris removal.

    PubMed

    Çapar, İsmail Davut; Aydinbelge, Hale Ari

    2014-01-01

    The purpose of the present study is to evaluate smear layer generation and residual debris after using self-adjusting file (SAF) or rotary instrumentation and to compare the debris and smear layer removal efficacy of the SAF cleaning/shaping irrigation system against final agitation techniques. One hundred and eight maxillary lateral incisor teeth were randomly divided into nine experimental groups (n = 12), and root canals were prepared using ProTaper Universal rotary files, with the exception of the SAF instrumentation group. During instrumentation, root canals were irrigated with a total of 16 mL of 5% NaOCl. For final irrigation, rotary-instrumented groups were irrigated with 10 mL of 17% EDTA and 10 mL of 5% NaOCl using different irrigation agitation regimens (syringe irrigation with needles, NaviTip FX, manual dynamic irrigation, CanalBrush, EndoActivator, EndoVac, passive ultrasonic irrigation (PUI), and SAF irrigation). In the SAF instrumentation group, root canals were instrumented for 4 min at a rate of 4 mL/min with 5% NaOCl and received a final flush with same as syringe irrigation with needles. The surface of the root dentin was observed using a scanning electron microscope. The SAF instrumentation group generated less smear layer and yielded cleaner canals compared to rotary instrumentation. The EndoActivator, EndoVac, PUI, and SAF irrigation groups increased the efficacy of irrigating solutions on the smear layer and debris removal. The SAF instrumentation yielded cleaner canal walls when compared to rotary instrumentation. None of the techniques completely removed the smear layer from the root canal walls.

  14. 49 CFR 31.26 - Filing, form, and service of papers.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 1 2011-10-01 2011-10-01 false Filing, form, and service of papers. 31.26 Section... Filing, form, and service of papers. (a) Filing and form. (1) A party filing any document under this part... paper filed in the proceeding shall contain a caption setting forth the title of the action, the...

  15. 49 CFR 31.26 - Filing, form, and service of papers.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 1 2013-10-01 2013-10-01 false Filing, form, and service of papers. 31.26 Section... Filing, form, and service of papers. (a) Filing and form. (1) A party filing any document under this part... paper filed in the proceeding shall contain a caption setting forth the title of the action, the...

  16. 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

  17. Modeling eligibility under national systems of compensation for treatment injury.

    PubMed

    Davis, Peter; Lay-Yee, Roy; Briant, Robin; Scott, Alastair

    2006-04-01

    How can different schemes of compensation for treatment injury be evaluated? This article offers an empirical approach to assessment based on the simulation of alternative models of eligibility using real-world data. It draws on information about adverse events generated from a representative survey of public hospital admissions in New Zealand and classifies these under a range of eligibility criteria for different possible compensation systems. These are then evaluated according to a number of policy design considerations, using variables available from the New Zealand study.

  18. Supplement B: Research Networking Systems Characteristics Profiles. A Companion to the OCLC Research Report, Registering Researchers in Authority Files

    ERIC Educational Resources Information Center

    Smith-Yoshimura, Karen; Altman, Micah; Conlon, Michael; Cristán, Ana Lupe; Dawson, Laura; Dunham, Joanne; Hickey, Thom; Hill, Amanda; Hook, Daniel; Horstmann, Wolfram; MacEwan, Andrew; Schreur, Philip; Smart, Laura; Wacker, Melanie; Woutersen, Saskia

    2014-01-01

    The OCLC Research Report, "Registering Researchers in Authority Files", [Accessible in ERIC as ED564924] summarizes the results of the research conducted by the OCLC Research Registering Researchers in Authority Files Task Group in 2012-2014. Details of this research are in supplementary data sets: (1) "Supplement A: Use Cases. A…

  19. 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

    ... Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION... Rules of Practice in FAA Space Transportation Adjudications § 406.113 Filing documents with the Docket... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false Filing documents with the Docket...

  20. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION... Rules of Practice in FAA Space Transportation Adjudications § 406.113 Filing documents with the Docket... 14 Aeronautics and Space 4 2014-01-01 2014-01-01 false Filing documents with the Docket...

  1. 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

    ... Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION... Rules of Practice in FAA Space Transportation Adjudications § 406.113 Filing documents with the Docket... 14 Aeronautics and Space 4 2012-01-01 2012-01-01 false Filing documents with the Docket...

  2. 75 FR 62381 - Combined Notice of Filings #2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-08

    ... Filings 2 September 29, 2010. Take notice that the Commission received the following electric rate filings.... Description: Midwest Independent Transmission System Operator, Inc. submits tariff filing per 35.13(a)(2)(iii.... Description: The Dayton Power and Light Company submits tariff filing per 35.13(a)(2)(iii) FERC Rate...

  3. 48 CFR 1552.211-75 - Working files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Working files. 1552.211-75... files. As prescribed in 1511.011-75, insert the following clause in all applicable EPA contracts. Working Files (APR 1984) The Contractor shall maintain accurate working files (by task or work...

  4. 48 CFR 9901.316 - Files and records.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Files and records. 9901... Files and records. The files and records of the Board shall be maintained in accordance with the Federal... Administration. As a minimum, the files and records shall include: (a) A record of every Board meeting,...

  5. 48 CFR 204.805 - Disposal of contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Disposal of contract files..., DEPARTMENT OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.805 Disposal of contract files. (1) The sources of the period for which official contract files must be retained are General...

  6. 48 CFR 204.804 - Closeout of contract files.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Closeout of contract files..., DEPARTMENT OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.804 Closeout of contract files... date for file purposes shall be determined and documented by the procuring contracting officer....

  7. Files in an Interactive Environment.

    DTIC Science & Technology

    1980-04-01

    programs that exploit the existing file system and leaves the limitations to be dealt with by the user. In contrast, in the VM/ CMS environment, almost all...described here have been implemented using SIMULA-67 in the VM/ CMS operating system . The code con- sists of approximately 1500 lines of SIMULA of which...the SIMULA run time system code which is inadequate in this environment and the SIMULA code makes it possible to associate CMS DD names with CMS files

  8. 78 FR 38240 - Authentication of Electronic Signatures on Electronically Filed Statements of Account

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-26

    ... in its Licensing Division to enable cable systems operating under the statutory license governing the... for the changes associated with the implementation of an electronic Statement of Account filing system... the Federal Communications Commission (``FCC''). Cable system statutory licensees are required to...

  9. 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…

  10. 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.

  11. 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)

  12. Speed of disentanglement in multiqubit systems under a depolarizing channel

    NASA Astrophysics Data System (ADS)

    Zhang, Fu-Lin; Jiang, Yue; Liang, Mai-Lin

    2013-06-01

    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}.

  13. Extreme value laws in dynamical systems under physical observables

    NASA Astrophysics Data System (ADS)

    Holland, Mark P.; Vitolo, Renato; Rabassa, Pau; Sterk, Alef E.; Broer, Henk W.

    2012-03-01

    Extreme value theory for chaotic deterministic dynamical systems is a rapidly expanding area of research. Given a system and a real function (observable) defined on its phase space, extreme value theory studies the limit probabilistic laws obeyed by large values attained by the observable along orbits of the system. Based on this theory, the so-called block maximum method is often used in applications for statistical prediction of large value occurrences. In this method, one performs statistical inference for the parameters of the Generalised Extreme Value (GEV) distribution, using maxima over blocks of regularly sampled observable values along an orbit of the system. The observables studied so far in the theory are expressed as functions of the distance with respect to a point, which is assumed to be a density point of the system’s invariant measure. However, at least with respect to the ambient (usually Euclidean) metric, this is not the structure of the observables typically encountered in physical applications, such as windspeed or vorticity in atmospheric models. In this paper we consider extreme value limit laws for observables which are not expressed as functions of the distance (in the ambient metric) from a density point of the dynamical system. In such cases, the limit laws are no longer determined by the functional form of the observable and the dimension of the invariant measure: they also depend on the specific geometry of the underlying attractor and of the observable’s level sets. We present a collection of analytical and numerical results, starting with a toral hyperbolic automorphism as a simple template to illustrate the main ideas. We then formulate our main results for a uniformly hyperbolic system, the solenoid map. We also discuss non-uniformly hyperbolic examples of maps (Hénon and Lozi maps) and of flows (the Lorenz63 and Lorenz84 models). Our purpose is to outline the main ideas and to highlight several serious problems found in the

  14. 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

  15. "The Bean Files."

    ERIC Educational Resources Information Center

    Haq, Krystyna; Longnecker, Nancy; Hickey, Ruth

    1999-01-01

    Describes classroom use and effectiveness of "The Bean Files," an internet package that uses humorous stories to introduce students to life on a wheat-sheep farm in the Mediterranean climate areas of Australia. The focus of the program is on the role of legume-cereal rotations in the farming system and the science underpinning this…

  16. 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

  17. Environmental Files and Data Bases. Part A. Introduction and Oceanographic Management Information System.

    DTIC Science & Technology

    1981-09-01

    Management Information System Naval Oceanography Program Naval Oceanographic Requirements Acoustic Reference Service Research Vehicle...THE OCEANOGRAPHIC MANAGEMENT INFORMATION SYSTEM . .. .... 2-1 3. ACOUSTIC DATA .. .. .... ......... ...... 3-1 4. GEOLOGICAL AND GEOPHYSICAL DATA...36 CHAPTER 2 THE OCEANOGRAPHIC MANAGEMENT INFORMATION SYSTEM 2-i CHAPTER 2 THE OCEANOGRAPHIC MANAGEMENT INFORMATION SYSTEM CONTENTS Page

  18. Operating Water Resources Systems Under Climate Change Scenarios

    NASA Astrophysics Data System (ADS)

    Ahmad, S.

    2002-12-01

    Population and industrial growth has resulted in intense demands on the quantity and quality of water resources worldwide. Moreover, climate change/variability is making a growing percentage of the earth's population vulnerable to extreme weather events (drought and flood). The 1996 Saguenay flood, 1997 Red River flood, the 1998 ice storm, and recent droughts in prairies are few examples of extreme weather events in Canada. Rising economic prosperity, growth in urban population, aging infrastructure, and a changing climate are increasing the vulnerability of Canadians to even more serious impacts. This growing threat can seriously undermine the social and economic viability of the country. Our ability to understand the impacts of climate change/variability on water quantity, quality, and its distribution in time and space can prepare us for sustainable management of this precious resource. The sustainability of water resources, over the medium to long-term, is critically dependent on the ability to manage (plan and operate) water resource systems under a more variable and perhaps warmer future climate. Studying the impacts of climate change/variability on water resources is complex and challenging. It is further complicated by the fact that impacts vary with time and are different at different locations. This study deals with the impacts of climate change/variability on water resources in a portion of the Red River Basin in Canada, both in terms of change in quantity and spatial-temporal distribution. A System Dynamics model is developed to describe the operation of the Shellmouth Reservoir located on the Red River in Canada. The climate data from Canadian Global Coupled Model, CGCM1 is used. The spatial system dynamics approach, based on distributed parameter control theory, is used to model the impacts of climate change/variability on water resources in time and space. A decision support system is developed to help reservoir operators and decision makers in

  19. 17 CFR 202.3 - Processing of filings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... example through omission of material information or through violation of accepted accounting principles... respect to filings under the Investment Company Act of 1940 and certain filings relating to investment... of 1939, which are routed to the Division of Investment Management, and filings under the...

  20. Experience, use, and performance measurement of the Hadoop File System in a typical nuclear physics analysis workflow

    NASA Astrophysics Data System (ADS)

    Sangaline, E.; Lauret, J.

    2014-06-01

    The quantity of information produced in Nuclear and Particle Physics (NPP) experiments necessitates the transmission and storage of data across diverse collections of computing resources. Robust solutions such as XRootD have been used in NPP, but as the usage of cloud resources grows, the difficulties in the dynamic configuration of these systems become a concern. Hadoop File System (HDFS) exists as a possible cloud storage solution with a proven track record in dynamic environments. Though currently not extensively used in NPP, HDFS is an attractive solution offering both elastic storage and rapid deployment. We will present the performance of HDFS in both canonical I/O tests and for a typical data analysis pattern within the RHIC/STAR experimental framework. These tests explore the scaling with different levels of redundancy and numbers of clients. Additionally, the performance of FUSE and NFS interfaces to HDFS were evaluated as a way to allow existing software to function without modification. Unfortunately, the complicated data structures in NPP are non-trivial to integrate with Hadoop and so many of the benefits of the MapReduce paradigm could not be directly realized. Despite this, our results indicate that using HDFS as a distributed filesystem offers reasonable performance and scalability and that it excels in its ease of configuration and deployment in a cloud environment.

  1. Site Enforcement Tracking System (SETS) (National) EZ-Base (trade name) Version 7. 3 (for microcomputers). Data file

    SciTech Connect

    Not Available

    1992-05-01

    When expending Superfund monies at a CERCLA (Comprehensive Environmental Response, Compensation and Liability Act) site, EPA must conduct a search to identify parties with potential financial responsibility for remediation of uncontrolled hazardous waste sites. EPA regional Superfund Waste Management Staff issue a notice letter to the potentially responsible party (PRP). Data from the notice letter is used to form the Site Enforcement Tracking System (SETS). The data includes PRP name and address, a company contact person, the date the notice was issued, and the related CERCLA site name and identification number. SETS was created by EPA to track PRP identification at both NPL (National Priorities List) and non-NPL sites. SETS does not address the range of other administrative duties related to tracking the PRP. These lists represent EPA's preliminary findings on the identities of PRPs. EZ-Base(TM) is a relational data base management system that utilizes a WordPerfect(R) interface and requires no programming skills to either convert or input databases. EZ-Base(TM) allows users to output selected records to merge files for reports or directly to printer. Selections may be made on any combination of field content criteria such as: site identification codes; site name; NPL flag; Potentially Responsible Party (PRP); addressee; title; address; city; state; ZIP notification date GNL and SNL.

  2. 76 FR 75541 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-02

    .... Applicants: Granite Ridge Energy, LLC. Description: Supplemental Filing for Triennial Market Power Analysis of Granite Ridge Energy, LLC under ER10-3260. Filed Date: 11/23/11. Accession Number:...

  3. 16 CFR 1502.7 - Notice of filing of objections.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... filing of objections. As soon as practicable after the expiration of the time for filing objections to... regulation under the FHSA or the PPPA and section 701(e) of the Federal Food, Drug, and Cosmetic Act,...

  4. 77 FR 19657 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ... filings: Docket Numbers: ES12-23-000. Applicants: Wolverine Power Supply Cooperative, Inc. Description... Securities under Section 204 of the Federal Power Act of Wolverine Power Supply Cooperative, Inc. Filed...

  5. 75 FR 62901 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-13

    ... under paragraph (f)(6) of Rule 19b-4 under the Act,\\3\\ which renders the proposal effective upon receipt... Form is complete, the System generates a FINRA Dispute Resolution Tracking Form (``Tracking Form'') for the claimant to reproduce. The claimant then files, in hard copy, the Tracking Form and any...

  6. Plasticity of the Arabidopsis root system under nutrient deficiencies.

    PubMed

    Gruber, Benjamin D; Giehl, Ricardo F H; Friedel, Swetlana; von Wirén, Nicolaus

    2013-09-01

    Plant roots show a particularly high variation in their morphological response to different nutrient deficiencies. Although such changes often determine the nutrient efficiency or stress tolerance of plants, it is surprising that a comprehensive and comparative analysis of root morphological responses to different nutrient deficiencies has not yet been conducted. Since one reason for this is an inherent difficulty in obtaining nutrient-deficient conditions in agar culture, we first identified conditions appropriate for producing nutrient-deficient plants on agar plates. Based on a careful selection of agar specifically for each nutrient being considered, we grew Arabidopsis (Arabidopsis thaliana) plants at four levels of deficiency for 12 nutrients and quantified seven root traits. In combination with measurements of biomass and elemental concentrations, we observed that the nutritional status and type of nutrient determined the extent and type of changes in root system architecture (RSA). The independent regulation of individual root traits further pointed to a differential sensitivity of root tissues to nutrient limitations. To capture the variation in RSA under different nutrient supplies, we used principal component analysis and developed a root plasticity chart representing the overall modulations in RSA under a given treatment. This systematic comparison of RSA responses to nutrient deficiencies provides a comprehensive view of the overall changes in root plasticity induced by the deficiency of single nutrients and provides a solid basis for the identification of nutrient-sensitive steps in the root developmental program.

  7. EQPT, a data file preprocessor for the EQ3/6 software package: User`s guide and related documentation (Version 7.0); Part 2

    SciTech Connect

    Daveler, S.A.; Wolery, T.J.

    1992-12-17

    EQPT is a data file preprocessor for the EQ3/6 software package. EQ3/6 currently contains five primary data files, called datao files. These files comprise alternative data sets. These data files contain both standard state and activity coefficient-related data. Three (com, sup, and nea) support the use of the Davies or B-dot equations for the activity coefficients; the other two (hmw and pit) support the use of Pitzer`s (1973, 1975) equations. The temperature range of the thermodynamic data on these data files varies from 25{degrees}C only to 0-300{degrees}C. The principal modeling codes in EQ3/6, EQ3NR and EQ6, do not read a data0 file, however. Instead, these codes read an unformatted equivalent called a data1 file. EQPT writes a datal file, using the corresponding data0 file as input. In processing a data0 file, EQPT checks the data for common errors, such as unbalanced reactions. It also conducts two kinds of data transformation. Interpolating polynomials are fit to data which are input on temperature adds. The coefficients of these polynomials are then written on the datal file in place of the original temperature grids. A second transformation pertains only to data files tied to Pitzer`s equations. The commonly reported observable Pitzer coefficient parameters are mapped into a set of primitive parameters by means of a set of conventional relations. These primitive form parameters are then written onto the datal file in place of their observable counterparts. Usage of the primitive form parameters makes it easier to evaluate Pitzer`s equations in EQ3NR and EQ6. EQPT and the other codes in the EQ3/6 package are written in FORTRAN 77 and have been developed to run under the UNIX operating system on computers ranging from workstations to supercomputers.

  8. 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

  9. 75 FR 70741 - Innovative Energy Systems, LLC; Supplemental Notice That Initial Market-Based Rate Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Innovative Energy Systems, LLC; Supplemental Notice That Initial Market... supplemental notice in the above-referenced proceeding Innovative Energy Systems, LLC's application for...

  10. 77 FR 9226 - Physical Systems Integration, LLC; Supplemental Notice That Initial Market-Based Rate Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Physical Systems Integration, LLC; Supplemental Notice That Initial Market... in the above-referenced proceeding of Physical Systems Integration, LLC's application for...

  11. Tank waste remediation system year 2000 dedicated file server project HNF-3418 project plan

    SciTech Connect

    SPENCER, S.G.

    1999-04-26

    The Server Project is to ensure that all TWRS supporting hardware (fileservers and workstations) will not cause a system failure because of the BIOS or Operating Systems cannot process Year 2000 dates.

  12. Nonstationary Stokes System in Cylindrical Domains Under Boundary Slip Conditions

    NASA Astrophysics Data System (ADS)

    Zaja¸czkowski, Wojciech M.

    2017-03-01

    Existence and uniqueness of solutions to the nonstationary Stokes system in a cylindrical domain {Ωsubset{R}^3} and under boundary slip conditions are proved in anisotropic Sobolev spaces. Assuming that the external force belong to {L_r(Ω×(0,T))} and initial velocity to {W_r^{2-2/r}(Ω)} there exists a solution such that velocity belongs to {W_r^{2,1}(Ω×(0,T))} and gradient of pressure to {L_r(Ω×(0,T))}, {rin(1,∞)}, {T > 0}. Thanks to the slip boundary conditions and a partition of unity the Stokes system is transformed to the Poisson equation for pressure and the heat equation for velocity. The existence of solutions to these equations is proved by applying local considerations. In this case we have to consider neighborhoods near the edges which by local mapping can be transformed to dihedral angle {π/2}. Hence solvability of the problem bases on construction local Green functions (near an interior point, near a point of a smooth part of the boundary, near a point of the edge) and their appropriate estimates. The technique presented in this paper can also work in other functional spaces: Sobolev-Slobodetskii, Besov, Nikolskii, Hölder and so on.

  13. 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.

  14. Comparing replacement rates under private and federal retirement systems.

    PubMed

    Martin, Patricia P

    One measure of the adequacy of retirement income is replacement rate - the percentage of pre-retirement salary that is available to a worker in retirement. This article compares salary replacement rates for private-sector employees of medium and large private establishments with those for federal employees under the Civil Service Retirement System and the Federal Employees Retirement System. Because there is no standard benefit formula to represent the variety of formulas available in the private sector, a composite defined benefit formula was developed using the characteristics of plans summarized in the Bureau of Labor Statistics Medium and Large Employer Plan Survey. The resulting "typical" private-sector defined benefit plan, with an accompanying defined contribution plan, was then compared with the two federal systems. The Civil Service Retirement System (CSRS) is a stand-alone defined benefit plan whose participants are not covered by Social Security. Until passage of the 1983 Amendments to Social Security Act, it was the only retirement plan for most federal civilian employees. Provisions of the 1983 Amendments were designed to restore long-term financial stability to the Social Security trust funds. One provision created the Federal Employees Retirement System (FERS), which covers federal employees hired after 1983. It was one of the provisions designed to restore long-term financial stability to the Social Security trust funds. FERS employees contribute to and are covered by Social Security. FERS, which is a defined benefit plan, also includes a basic benefit and a 401(k)-type plan known as the Thrift Savings Plan (TSP). To compare how retirees would fare under the three different retirement systems, benefits of employees retiring at age 65 with 35 years of service were calculated using hypothetical workers with steady earnings. Workers were classified according to a percentage of the average wage in the economy: low earners (45 percent), average earners

  15. Computer program modifications of Open-file report 82-1065; a comprehensive system for interpreting seismic-refraction and arrival-time data using interactive computer methods

    USGS Publications Warehouse

    Ackermann, Hans D.; Pankratz, Leroy W.; Dansereau, Danny A.

    1983-01-01

    The computer programs published in Open-File Report 82-1065, A comprehensive system for interpreting seismic-refraction arrival-time data using interactive computer methods (Ackermann, Pankratz, and Dansereau, 1982), have been modified to run on a mini-computer. The new version uses approximately 1/10 of the memory of the initial version, is more efficient and gives the same results.

  16. A Javascript library that uses Windows Script Host (WSH) to analyze prostate motion data fragmented across a multitude of Excel files by the Calypso 4D Localization System.

    PubMed

    Vali, Faisal S; Hsi, Alex; Cho, Paul; Parsai, Homayon; Garver, Elizabeth; Garza, Richard

    2008-11-06

    The Calypso 4D Localization System records prostate motion continuously during radiation treatment. It stores the data across thousands of Excel files. We developed Javascript (JScript) libraries for Windows Script Host (WSH) that use ActiveX Data Objects, OLE Automation and SQL to statistically analyze the data and display the results as a comprehensible Excel table. We then leveraged these libraries in other research to perform vector math on data spread across multiple access databases.

  17. 78 FR 67927 - Foreign Trade Regulations (FTR): Mandatory Automated Export System Filing for All Shipments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-13

    ...) of modifications to an existing information collection and the collection of two new data elements in... collection of two new data elements through the AES under control number 0607-0152 on May 6, 2013. ADDRESSES... AESDirect. In addition, the rule required the reporting of two new data elements, license value (15 CFR...

  18. Optimal Management and Design of Energy Systems under Atmospheric Uncertainty

    NASA Astrophysics Data System (ADS)

    Anitescu, M.; Constantinescu, E. M.; Zavala, V.

    2010-12-01

    optimal management and design of energy systems, such as the power grid or building systems, under atmospheric conditions uncertainty. The framework is defined in terms of a mathematical paradigm called stochastic programming: minimization of the expected value of the decision-makers objective function subject to physical and operational constraints, such as low blackout porbability, that are enforced on each scenario. We report results on testing the framework on the optimal management of power grid systems under high wind penetration scenarios, a problem whose time horizon is in the order of days. We discuss the computational effort of scenario generation which involves running WRF at high spatio-temporal resolution dictated by the operational constraints as well as solving the optimal dispatch problem. We demonstrate that accounting for uncertainty in atmospheric conditions results in blackout prevention, whereas decisions using only mean forecast does not. We discuss issues in using the framework for planning problems, whose time horizon is of several decades and what requirements this problem would entail from climate simulation systems.

  19. MERRA-2: File Specification

    NASA Technical Reports Server (NTRS)

    Bosilovich, M. G.; Lucchesi, R.; Suarez, M.

    2015-01-01

    The second Modern-Era Retrospective analysis for Research and Applications (MERRA-2) is a NASA atmospheric reanalysis that begins in 1980. It replaces the original MERRA reanalysis (Rienecker et al., 2011) using an upgraded version of the Goddard Earth Observing System Model, Version 5 (GEOS-5) data assimilation system. The file collections for MERRA-2 are described in detail in this document, including some important changes from those of the MERRA dataset (Lucchesi, 2012).

  20. Making resonance a common case: a high-performance implementation of collective I/O on parallel file systems

    SciTech Connect

    Davis, Marion Kei; Zhang, Xuechen; Jiang, Song

    2009-01-01

    Collective I/O is a widely used technique to improve I/O performance in parallel computing. It can be implemented as a client-based or server-based scheme. The client-based implementation is more widely adopted in MPI-IO software such as ROMIO because of its independence from the storage system configuration and its greater portability. However, existing implementations of client-side collective I/O do not take into account the actual pattern offile striping over multiple I/O nodes in the storage system. This can cause a significant number of requests for non-sequential data at I/O nodes, substantially degrading I/O performance. Investigating the surprisingly high I/O throughput achieved when there is an accidental match between a particular request pattern and the data striping pattern on the I/O nodes, we reveal the resonance phenomenon as the cause. Exploiting readily available information on data striping from the metadata server in popular file systems such as PVFS2 and Lustre, we design a new collective I/O implementation technique, resonant I/O, that makes resonance a common case. Resonant I/O rearranges requests from multiple MPI processes to transform non-sequential data accesses on I/O nodes into sequential accesses, significantly improving I/O performance without compromising the independence ofa client-based implementation. We have implemented our design in ROMIO. Our experimental results show that the scheme can increase I/O throughput for some commonly used parallel I/O benchmarks such as mpi-io-test and ior-mpi-io over the existing implementation of ROMIO by up to 157%, with no scenario demonstrating significantly decreased performance.

  1. A Survey of Distributed Capability File Systems and Their Application to Cloud Environments

    DTIC Science & Technology

    2014-09-01

    Trends . . . . . . . . . . . . . . . . . . . . . 50 6 Discussion 63 6.1 Revocation . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 6.2...restricted environment that re- sists system hijacking and quarantines errors that the software might produce. • Access Revocation : Enable revocation of...that capability systems are incapable of some desirable security properties (i.e., confinement, privilege revocation ). Miller, Yee and Shapiro present a

  2. SIDS-toADF File Mapping Manual

    NASA Technical Reports Server (NTRS)

    McCarthy, Douglas; Smith, Matthew; Poirier, Diane; Smith, Charles A. (Technical Monitor)

    2002-01-01

    The "CFD General Notation System" (CGNS) consists of a collection of conventions, and conforming software, for the storage and retrieval of Computational Fluid Dynamics (CFD) data. It facilitates the exchange of data between sites and applications, and helps stabilize the archiving of aerodynamic data. This effort was initiated in order to streamline the procedures in exchanging data and software between NASA and its customers, but the goal is to develop CGNS into a National Standard for the exchange of aerodynamic data. The CGNS development team is comprised of members from Boeing Commercial Airplane Group, NASA-Ames, NASA-Langley, NASA-Lewis, McDonnell-Douglas Corporation (now Boeing-St. Louis), Air Force-Wright Lab., and ICEM-CFD Engineering. The elements of CGNS address all activities associated with the storage of data on external media and its movement to and from application programs. These elements include: 1) The Advanced Data Format (ADF) Database manager, consisting of both a file format specification and its I/O software, which handles the actual reading and writing of data from and to external storage media; 2) The Standard Interface Data Structures (SIDS), which specify the intellectual content of CFD data and the conventions governing naming and terminology; 3) The SIDS-to-ADF File Mapping conventions, which specify the exact location where the CFD data defined by the SIDS is to be stored within the ADF file(s); and 4) The CGNS Mid-level Library, which provides CFD-knowledgeable routines suitable for direct installation into application codes. The SIDS-toADF File Mapping Manual specifies the exact manner in which, under CGNS conventions, CFD data structures (the SIDS) are to be stored in (i.e., mapped onto) the file structure provided by the database manager (ADF). The result is a conforming CGNS database. Adherence to the mapping conventions guarantees uniform meaning and location of CFD data within ADF files, and thereby allows the construction of

  3. Verification of respiratory-gated radiotherapy with new real-time tumour-tracking radiotherapy system using cine EPID images and a log file

    NASA Astrophysics Data System (ADS)

    Shiinoki, Takehiro; Hanazawa, Hideki; Yuasa, Yuki; Fujimoto, Koya; Uehara, Takuya; Shibuya, Keiko

    2017-02-01

    A combined system comprising the TrueBeam linear accelerator and a new real-time tumour-tracking radiotherapy system, SyncTraX, was installed at our institution. The objectives of this study are to develop a method for the verification of respiratory-gated radiotherapy with SyncTraX using cine electronic portal image device (EPID) images and a log file and to verify this treatment in clinical cases. Respiratory-gated radiotherapy was performed using TrueBeam and the SyncTraX system. Cine EPID images and a log file were acquired for a phantom and three patients during the course of the treatment. Digitally reconstructed radiographs (DRRs) were created for each treatment beam using a planning CT set. The cine EPID images, log file, and DRRs were analysed using a developed software. For the phantom case, the accuracy of the proposed method was evaluated to verify the respiratory-gated radiotherapy. For the clinical cases, the intra- and inter-fractional variations of the fiducial marker used as an internal surrogate were calculated to evaluate the gating accuracy and set-up uncertainty in the superior–inferior (SI), anterior–posterior (AP), and left–right (LR) directions. The proposed method achieved high accuracy for the phantom verification. For the clinical cases, the intra- and inter-fractional variations of the fiducial marker were  ⩽3 mm and  ±3 mm in the SI, AP, and LR directions. We proposed a method for the verification of respiratory-gated radiotherapy with SyncTraX using cine EPID images and a log file and showed that this treatment is performed with high accuracy in clinical cases. This work was partly presented at the 58th Annual meeting of American Association of Physicists in Medicine.

  4. Verification of respiratory-gated radiotherapy with new real-time tumour-tracking radiotherapy system using cine EPID images and a log file.

    PubMed

    Shiinoki, Takehiro; Hanazawa, Hideki; Yuasa, Yuki; Fujimoto, Koya; Uehara, Takuya; Shibuya, Keiko

    2017-02-21

    A combined system comprising the TrueBeam linear accelerator and a new real-time tumour-tracking radiotherapy system, SyncTraX, was installed at our institution. The objectives of this study are to develop a method for the verification of respiratory-gated radiotherapy with SyncTraX using cine electronic portal image device (EPID) images and a log file and to verify this treatment in clinical cases. Respiratory-gated radiotherapy was performed using TrueBeam and the SyncTraX system. Cine EPID images and a log file were acquired for a phantom and three patients during the course of the treatment. Digitally reconstructed radiographs (DRRs) were created for each treatment beam using a planning CT set. The cine EPID images, log file, and DRRs were analysed using a developed software. For the phantom case, the accuracy of the proposed method was evaluated to verify the respiratory-gated radiotherapy. For the clinical cases, the intra- and inter-fractional variations of the fiducial marker used as an internal surrogate were calculated to evaluate the gating accuracy and set-up uncertainty in the superior-inferior (SI), anterior-posterior (AP), and left-right (LR) directions. The proposed method achieved high accuracy for the phantom verification. For the clinical cases, the intra- and inter-fractional variations of the fiducial marker were  ⩽3 mm and  ±3 mm in the SI, AP, and LR directions. We proposed a method for the verification of respiratory-gated radiotherapy with SyncTraX using cine EPID images and a log file and showed that this treatment is performed with high accuracy in clinical cases.

  5. Leafhopper control in filed-grown red maples with systemic insecticides

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Red maple, a popular landscape tree, can be susceptible to foliar damage caused by potato leafhopper feeding. Typical potato leafhopper injury includes distorted leaf tissue and reduced shoot growth. This research identified systemic neonicotinoid insecticides, Allectus and Discus, which controlled...

  6. Common File Formats.

    PubMed

    Mills, Lauren

    2014-03-21

    An overview of the many file formats commonly used in bioinformatics and genome sequence analysis is presented, including various data file formats, alignment file formats, and annotation file formats. Example workflows illustrate how some of the different file types are typically used.

  7. A Method to Evaluate Groundwater flow system under the Seabed

    NASA Astrophysics Data System (ADS)

    Kohara, N.; Marui, A.

    2011-12-01

    A rapid increase of population in the world causes growth of water demands, and this may result worldwide water shortage in future. Especially, in the coastal area, water resource development becomes important because the half of the world population is concentrated in this area. Recently, countermeasures to mitigate climate change are discussed. Coastal area is one of the promising places for disposal of high-level nuclear waste or carbon dioxide capture and storage. Lots of development will be conducted in the coastal areas, however there are a lot of uncertainties remaining to understand the hydrogeological environment in there. It has been said that salt water / fresh water interface is formed in the place where meteoric fresh groundwater and salt groundwater from the ocean meet, and there is a large amount of groundwater discharge on the seafloor of the end of this interface so far. Recently, there is a lot of research about this submarine groundwater discharge because of the protection of the coastal ecosystem. In addition, there is a report that fresh water under the seabed was discovered on the continental shelf away from a present coastline by tens of kilometers in many parts of the world, because recently offshore drilling technology has been improving. Classical theory about formulation of salt water / fresh water interface could not explain completely, and consideration of longterm geochemical process (e.g., sea level fluctuations) is needed to understand this mechanism. Fresh (or brackish) groundwater under the seabed have been found on the investigation related to a seabed resources exploration in the field of coal mining, oceanic engineering works such as submarine tunnels, the atomic research, and the collection investigations of the basic data in the earth science field. A lot of fresh water under the seabed is confirmed on the offshore side from a present coastline as for these cases, and it is suggested that the end position of the salt water

  8. Segregation of Fluidized Binary Hard-Sphere Systems Under Gravity

    NASA Astrophysics Data System (ADS)

    Kim, Soon-Chul

    We have derived an analytic expression for the contact value of the local density of binary hard-sphere systems under gravity. We have obtained the crossover conditions for the Brazil-nut type segregation of binary hard-sphere mixtures and binary hard-sphere chain mixtures from the segregation criterion, where the segregation occurs when the density (or the pressure) of the small spheres at the bottom is higher than that of the large spheres, or vice versa. For the binary hard-sphere chain mixtures, the crossover condition for the segregation depends on the number of monomers composed of hard-sphere chains as well as the mass and the diameter of each species. The fundamental-measure theories (FMTs) and local density approximation (LDA) are employed to examine the crossover condition for the segregation of the gravity-induced hard-sphere mixtures. The calculated results show that the LDA does not explain the density oscillation near the bottom, whereas the modified fundamental-measure theory (MFMT) compares with molecular dynamics simulations.

  9. Computation of thermodynamic equilibrium in systems under stress

    NASA Astrophysics Data System (ADS)

    Vrijmoed, Johannes C.; Podladchikov, Yuri Y.

    2016-04-01

    pressure. To compute a case of high and low pressure around a stressed inclusion we first did a Finite Element Method calculation of a rigid inclusion in a viscous matrix under simple shear. From the computed stress distribution we took the local pressure (mean stress) in each grid point of the FEM calculation. This was used as input thermodynamic pressure in the Gibbs minimization and the result showed it is possible to have an equilibrium situation in which chlorite-amphibole is stable in the low pressure domain and kyanite in the high pressure domain of the stress field around the inclusion. Interestingly, the calculation predicts the redistribution of fluid from an average content of fluid in the system. The fluid in equilibrium tends to accumulate in the low pressure areas whereas it leaves the high pressure areas dry. Transport of fluid components occurs not necessarily by fluid flow, but may happen for example by diffusion. We conclude that an apparent disequilibrium texture may be explained by equilibrium under pressure variations, and apparent fluid addition by redistribution of fluid controlled by the local stress distribution. [1] Mukai et al. (2014), Journal of Petrology, 55 (8), p. 1457-1477. [2] Holland and Powell (1998), Journal of Metamorphic Geology, 16, p. 309-343 [3] Johnson et al. (1992), Computers & Geosciences, 18 (7), p. 899-947 [4] Connolly (2005), Earth and Planetary Science Letters, 236, p. 524-541

  10. Effect of repetitive pecking at working length for glide path preparation using G-file

    PubMed Central

    Ha, Jung-Hong; Jeon, Hyo-Jin; Abed, Rashid El; Chang, Seok-Woo; Kim, Sung-Kyo

    2015-01-01

    Objectives Glide path preparation is recommended to reduce torsional failure of nickel-titanium (NiTi) rotary instruments and to prevent root canal transportation. This study evaluated whether the repetitive insertions of G-files to the working length maintain the apical size as well as provide sufficient lumen as a glide path for subsequent instrumentation. Materials and Methods The G-file system (Micro-Mega) composed of G1 and G2 files for glide path preparation was used with the J-shaped, simulated resin canals. After inserting a G1 file twice, a G2 file was inserted to the working length 1, 4, 7, or 10 times for four each experimental group, respectively (n = 10). Then the canals were cleaned by copious irrigation, and lubricated with a separating gel medium. Canal replicas were made using silicone impression material, and the diameter of the replicas was measured at working length (D0) and 1 mm level (D1) under a scanning electron microscope. Data was analysed by one-way ANOVA and post-hoc tests (p = 0.05). Results The diameter at D0 level did not show any significant difference between the 1, 2, 4, and 10 times of repetitive pecking insertions of G2 files at working length. However, 10 times of pecking motion with G2 file resulted in significantly larger canal diameter at D1 (p < 0.05). Conclusions Under the limitations of this study, the repetitive insertion of a G2 file up to 10 times at working length created an adequate lumen for subsequent apical shaping with other rotary files bigger than International Organization for Standardization (ISO) size 20, without apical transportation at D0 level. PMID:25984473

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

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the relevance of specific information might be established only after considerable analysis and as the... free flow of information in a criminal law enforcement inquiry. (v) The requirements of subsections (e... in paragraph (a)(2) of this section, that is, because the system contains investigatory...

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

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... the relevance of specific information might be established only after considerable analysis and as the... free flow of information in a criminal law enforcement inquiry. (v) The requirements of subsections (e... in paragraph (a)(2) of this section, that is, because the system contains investigatory...

  13. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... the relevance of specific information might be established only after considerable analysis and as the... free flow of information in a criminal law enforcement inquiry. (v) The requirements of subsections (e... in paragraph (a)(2) of this section, that is, because the system contains investigatory...

  14. Course Management Systems and Campus-Based Learning. Professional File. Number 29

    ERIC Educational Resources Information Center

    Lopes, Valerie

    2008-01-01

    Course management systems (CMSs) have become a symbol of innovation at institutions of higher education and in less than a decade they have been rapidly adopted by a large number of colleges and universities in many countries around the world (Coates, 2005; Dutton, Cheong, & Park, 2004; Malikowski, Thompson, & Theis, 2007; Wise &…

  15. Exact correlations in a single-file system with a driven tracer

    NASA Astrophysics Data System (ADS)

    Kundu, A.; Cividini, J.

    2016-09-01

    We study the effect of a single driven tracer particle in a bath of other particles performing the random average process on an infinite line using a stochastic hydrodynamics approach. We consider arbitrary fixed as well as random initial conditions and compute the two-point correlations. For quenched uniform and annealed steady-state initial conditions we show that in the large time T limit the fluctuations and the correlations of the positions of the particles grow subdiffusively as \\sqrt{T} and have well-defined scaling forms under proper rescaling of the labels. We compute the corresponding scaling functions exactly for these specific initial configurations and verify them numerically. We also consider a non-translationally invariant initial condition with linearly increasing gaps where we show that the fluctuations and correlations grow superdiffusively as T3/2 at large times.

  16. Adobe acrobat: an alternative electronic teaching file construction methodology independent of HTML restrictions.

    PubMed

    Katzman, G L

    2001-03-01

    The goal of the project was to create a method by which an in-house digital teaching file could be constructed that was simple, inexpensive, independent of hypertext markup language (HTML) restrictions, and appears identical on multiple platforms. To accomplish this, Microsoft PowerPoint and Adobe Acrobat were used in succession to assemble digital teaching files in the Acrobat portable document file format. They were then verified to appear identically on computers running Windows, Macintosh Operating Systems (OS), and the Silicon Graphics Unix-based OS as either a free-standing file using Acrobat Reader software or from within a browser window using the Acrobat browser plug-in. This latter display method yields a file viewed through a browser window, yet remains independent of underlying HTML restrictions, which may confer an advantage over simple HTML teaching file construction. Thus, a hybrid of HTML-distributed Adobe Acrobat generated WWW documents may be a viable alternative for digital teaching file construction and distribution.

  17. Characterizing parallel file-access patterns on a large-scale multiprocessor

    NASA Technical Reports Server (NTRS)

    Purakayastha, Apratim; Ellis, Carla Schlatter; Kotz, David; Nieuwejaar, Nils; Best, Michael

    1994-01-01

    Rapid increases in the computational speeds of multiprocessors have not been matched by corresponding performance enhancements in the I/O subsystem. To satisfy the large and growing I/O requirements of some parallel scientific applications, we need parallel file systems that can provide high-bandwidth and high-volume data transfer between the I/O subsystem and thousands of processors. Design of such high-performance parallel file systems depends on a thorough grasp of the expected workload. So far there have been no comprehensive usage studies of multiprocessor file systems. Our CHARISMA project intends to fill this void. The first results from our study involve an iPSC/860 at NASA Ames. This paper presents results from a different platform, the CM-5 at the National Center for Supercomputing Applications. The CHARISMA studies are unique because we collect information about every individual read and write request and about the entire mix of applications running on the machines. The results of our trace analysis lead to recommendations for parallel file system design. First the file system should support efficient concurrent access to many files, and I/O requests from many jobs under varying load conditions. Second, it must efficiently manage large files kept open for long periods. Third, it should expect to see small requests predominantly sequential access patterns, application-wide synchronous access, no concurrent file-sharing between jobs appreciable byte and block sharing between processes within jobs, and strong interprocess locality. Finally, the trace data suggest that node-level write caches and collective I/O request interfaces may be useful in certain environments.

  18. 18 CFR 24.1 - Filing.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Filing. 24.1 Section 24.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT DECLARATION OF INTENTION § 24.1 Filing. An original...

  19. 18 CFR 24.1 - Filing.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Filing. 24.1 Section 24.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT DECLARATION OF INTENTION § 24.1 Filing. A declaration...

  20. 75 FR 71704 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-24

    ... Shipping Company S.A.; Orient Overseas Container Line Ltd.; and United Arab Shipping Company S.A.G. Filing... under the Shipping Act of 1984. Interested parties may submit comments on the agreements to the..., CMA CGM S.A., and Mediterranean Shipping Company S.A. Filing Party: Wayne R. Rohde, Esq.; Cozen...

  1. 78 FR 48163 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-07

    ... notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may... Association and New York Shipping Association. Filing Parties: Donato Caruso, Esq.; The Lambos Firm; 303 South... assessment for all house containers within 260 miles, except in the Bermuda trade effective August 1,...

  2. 16 CFR 803.9 - Filing fee.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 1 2012-01-01 2012-01-01 false Filing fee. 803.9 Section 803.9 Commercial Practices FEDERAL TRADE COMMISSION RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976 TRANSMITTAL RULES § 803.9 Filing fee. (a) Each acquiring...

  3. 16 CFR 803.9 - Filing fee.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 1 2014-01-01 2014-01-01 false Filing fee. 803.9 Section 803.9 Commercial Practices FEDERAL TRADE COMMISSION RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976 TRANSMITTAL RULES § 803.9 Filing fee. (a) Each acquiring...

  4. 16 CFR 803.9 - Filing fee.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Filing fee. 803.9 Section 803.9 Commercial Practices FEDERAL TRADE COMMISSION RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976 TRANSMITTAL RULES § 803.9 Filing fee. (a) Each acquiring...

  5. 16 CFR 803.9 - Filing fee.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 1 2011-01-01 2011-01-01 false Filing fee. 803.9 Section 803.9 Commercial Practices FEDERAL TRADE COMMISSION RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976 TRANSMITTAL RULES § 803.9 Filing fee. (a) Each acquiring...

  6. 16 CFR 803.9 - Filing fee.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 1 2013-01-01 2013-01-01 false Filing fee. 803.9 Section 803.9 Commercial Practices FEDERAL TRADE COMMISSION RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976 TRANSMITTAL RULES § 803.9 Filing fee. (a) Each acquiring...

  7. 18 CFR 24.1 - Filing.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Filing. 24.1 Section 24.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT DECLARATION OF INTENTION § 24.1 Filing. A declaration...

  8. 18 CFR 24.1 - Filing.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Filing. 24.1 Section 24.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT DECLARATION OF INTENTION § 24.1 Filing. A declaration...

  9. 18 CFR 24.1 - Filing.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Filing. 24.1 Section 24.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT DECLARATION OF INTENTION § 24.1 Filing. A declaration...

  10. 75 FR 3466 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the Secretary, Federal Maritime Commission,...

  11. 18 CFR 154.203 - Compliance filings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., DEPARTMENT OF ENERGY REGULATIONS UNDER NATURAL GAS ACT RATE SCHEDULES AND TARIFFS Procedures for Changing... changes required to comply with the order. Such compliance filings may not be combined with other rate or... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Compliance filings....

  12. 37 CFR 401.16 - Electronic filing.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Electronic filing. 401.16... OF COMMERCE RIGHTS TO INVENTIONS MADE BY NONPROFIT ORGANIZATIONS AND SMALL BUSINESS FIRMS UNDER GOVERNMENT GRANTS, CONTRACTS, AND COOPERATIVE AGREEMENTS § 401.16 Electronic filing. Unless...

  13. 76 FR 2114 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to the Secretary, Federal Maritime Commission,...

  14. 18 CFR 9.1 - Filing.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Filing. 9.1 Section 9.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT TRANSFER OF LICENSE OR LEASE OF PROJECT PROPERTY Application for Transfer of License § 9.1 Filing....

  15. 18 CFR 9.1 - Filing.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Filing. 9.1 Section 9.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT TRANSFER OF LICENSE OR LEASE OF PROJECT PROPERTY Application for Transfer of License § 9.1 Filing....

  16. 18 CFR 9.1 - Filing.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Filing. 9.1 Section 9.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT TRANSFER OF LICENSE OR LEASE OF PROJECT PROPERTY Application for Transfer of License § 9.1 Filing....

  17. 18 CFR 9.1 - Filing.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Filing. 9.1 Section 9.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT TRANSFER OF LICENSE OR LEASE OF PROJECT PROPERTY Application for Transfer of License § 9.1 Filing....

  18. 77 FR 54911 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-06

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  19. 77 FR 45610 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-01

    ... [Federal Register Volume 77, Number 148 (Wednesday, August 1, 2012)] [Notices] [Page 45610] [FR Doc No: 2012-18803] FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties...

  20. 78 FR 23251 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-18

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  1. 77 FR 5013 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  2. 78 FR 30302 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  3. 76 FR 81933 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  4. 76 FR 52954 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  5. 77 FR 50688 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  6. 78 FR 64940 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-30

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  7. 78 FR 25443 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  8. 76 FR 31962 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  9. 76 FR 34992 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  10. 76 FR 51033 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-17

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  11. 77 FR 40881 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  12. 26 CFR 1.1402(c)-4 - Individuals under Railroad Retirement System.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 12 2013-04-01 2013-04-01 false Individuals under Railroad Retirement System. 1... Individuals under Railroad Retirement System. The performance of service by an individual as an employee or... under the railroad retirement system, does not constitute a trade or business....

  13. 26 CFR 1.1402(c)-4 - Individuals under Railroad Retirement System.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 12 2012-04-01 2012-04-01 false Individuals under Railroad Retirement System. 1... Individuals under Railroad Retirement System. The performance of service by an individual as an employee or... under the railroad retirement system, does not constitute a trade or business....

  14. 26 CFR 1.1402(c)-4 - Individuals under Railroad Retirement System.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 12 2014-04-01 2014-04-01 false Individuals under Railroad Retirement System. 1... Individuals under Railroad Retirement System. The performance of service by an individual as an employee or... under the railroad retirement system, does not constitute a trade or business....

  15. 26 CFR 1.1402(c)-4 - Individuals under Railroad Retirement System.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 12 2011-04-01 2011-04-01 false Individuals under Railroad Retirement System. 1... Individuals under Railroad Retirement System. The performance of service by an individual as an employee or... under the railroad retirement system, does not constitute a trade or business....

  16. A Virtual Terminal Program for Inter-Computer System Communications under the RT-11 Operating System.

    DTIC Science & Technology

    1986-09-01

    NOT 176520-176526 (OCTAL) XCSR = RCSR + 4 XBUF = RCSR + 6 ERRBYT = 52 FLAG = 140 ;FLAG CHARACTER IS P P AA%4 VTERM: .SCCA # MAREA ,#SCCA ;DISABLE C...FILE NAME / .BYTE 200 .EVEN MESG: •BYTE 12 ;NORMAL SIGN-ON MESSAGE .BYTE 15 .ASCIZ /Virtual Terminal program... type to exit../ .EVEN MAREA : .BLKW 5

  17. 45 CFR 34.3 - Filing procedures and time limits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Filing procedures and time limits. 34.3 Section 34.3 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION CLAIMS FILED UNDER... has been filed and/or paid; (6) Travel orders, if applicable; (7) Any citations or traffic tickets,...

  18. 45 CFR 34.3 - Filing procedures and time limits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 1 2012-10-01 2012-10-01 false Filing procedures and time limits. 34.3 Section 34.3 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION CLAIMS FILED UNDER... has been filed and/or paid; (6) Travel orders, if applicable; (7) Any citations or traffic tickets,...

  19. 45 CFR 34.3 - Filing procedures and time limits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 1 2013-10-01 2013-10-01 false Filing procedures and time limits. 34.3 Section 34.3 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION CLAIMS FILED UNDER... has been filed and/or paid; (6) Travel orders, if applicable; (7) Any citations or traffic tickets,...

  20. 10 CFR 501.7 - General filing requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... to be filed with OFE or DOE in connection with a proceeding under parts 503 and 504 shall be filed in... upon mailing. (3) Timeliness. Documents are to be filed with the appropriate DOE or OFE office listed... day. Regular business hours are 8 a.m. to 4:30 p.m. (4) Computation of time. In computing any...

  1. 37 CFR 2.34 - Bases for filing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Bases for filing. 2.34... COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.34 Bases for filing. (a) The application must include one or more of the following five filing bases: (1) Use in commerce under section...

  2. 29 CFR 1981.103 - Filing of discrimination complaint.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 9 2013-07-01 2013-07-01 false Filing of discrimination complaint. 1981.103 Section 1981..., DEPARTMENT OF LABOR (CONTINUED) PROCEDURES FOR THE HANDLING OF DISCRIMINATION COMPLAINTS UNDER SECTION 6 OF... Orders § 1981.103 Filing of discrimination complaint. (a) Who may file. An employee who believes that...

  3. 29 CFR 1979.103 - Filing of discrimination complaint.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 9 2013-07-01 2013-07-01 false Filing of discrimination complaint. 1979.103 Section 1979..., DEPARTMENT OF LABOR (CONTINUED) PROCEDURES FOR THE HANDLING OF DISCRIMINATION COMPLAINTS UNDER SECTION 519 OF..., Findings and Preliminary Orders § 1979.103 Filing of discrimination complaint. (a) Who may file....

  4. 78 FR 16261 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-14

    ... Energy Regulatory Commission Combined Notice of Filings 1 Take notice that the Commission received the... Trading LLC. Description: Supplement to notice of succession to be effective 1/ 1/2013. Filed Date: 3/4/13...: Revised Added Facilities Rate for Agmts under WDAT to be effective 1/6/2013. Filed Date: 3/4/13....

  5. 14 CFR 292.22 - Effectiveness of tariffs on file.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Effectiveness of tariffs on file. 292.22... Effectiveness of tariffs on file. (a) Cargo rate tariffs on file with the Department, including related classification and/or applicability rules, cease to be effective as tariffs under 49 U.S.C. 41504 and 41510,...

  6. 5 CFR 1208.12 - Time of filing.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... OPPORTUNITIES ACT USERRA Appeals § 1208.12 Time of filing. Under chapter 43 of title 38, United States Code, there is no time limit for filing a USERRA appeal with the Board. However, the Board encourages... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Time of filing. 1208.12 Section...

  7. 26 CFR 1.150-5 - Filing notices and elections.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 2 2010-04-01 2010-04-01 false Filing notices and elections. 1.150-5 Section 1... notices and elections. (a) In general. Notices and elections under the following sections must be filed.... This section applies to notices and elections filed on or after January 19, 2001....

  8. 77 FR 33206 - Combined Notice of Filings #2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-05

    ... rate filings: Docket Numbers: ER12-1847-000. Applicants: ISO New England Inc., New England Power Pool Participants Committee. Description: ISO New England Inc. submits tariff filing per 35.13(a)(2)(iii: Clean-Up to Inter. Procedures Under Sch. 22-23 of ISO OATT to be effective 7/25/2012. Filed Date:...

  9. 29 CFR 1610.13 - Maintenance of files.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 4 2010-07-01 2010-07-01 false Maintenance of files. 1610.13 Section 1610.13 Labor... Production or Disclosure Under 5 U.S.C. 552 § 1610.13 Maintenance of files. (a) The Legal Counsel or designee, and regional attorneys, shall maintain files containing all material required to be retained by...

  10. 32 CFR 536.31 - Opening claim files.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Opening claim files. 536.31 Section 536.31... AGAINST THE UNITED STATES Investigation and Processing of Claims § 536.31 Opening claim files. A claim file will be opened when: (a) Information that requires investigation under § 536.23 is received....

  11. 43 CFR 4.1290 - Who may file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file. 4.1290 Section 4.1290 Public Lands: Interior Office of the Secretary of the Interior DEPARTMENT HEARINGS AND APPEALS PROCEDURES... Expenses Under Section 525(e) of the Act § 4.1290 Who may file. (a) Any person may file a petition...

  12. 43 CFR 4.1301 - Who may file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file. 4.1301 Section 4.1301 Public... Individual Civil Penalty Assessments Under Section 518(f) of the Act § 4.1301 Who may file. Any individual served a notice of proposed individual civil penalty assessment may file a petition for review with...

  13. 46 CFR 550.401 - Who may file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 9 2010-10-01 2010-10-01 false Who may file. 550.401 Section 550.401 Shipping FEDERAL... Petitions for Section 19 Relief § 550.401 Who may file. Any person who has been harmed by, or who can... the United States, may file a petition for relief under the provisions of this part....

  14. 30 CFR 706.15 - Where to file.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... file his or her statement of employment and financial interests with the Director. (b) Each Department... the Act, shall file a statement of employment and financial interests with his or her appropriate... performs a function or duty under the Act shall file a statement of employment and financial interests...

  15. 30 CFR 706.11 - Who shall file.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... RESTRICTION ON FINANCIAL INTERESTS OF FEDERAL EMPLOYEES § 706.11 Who shall file. (a) Every employee in the Office is required to file a statement of employment and financial interests. (b) Any other Federal employee who performs any function or duty under the Act is required to file a statement of employment...

  16. Behavioral System Feedback Measurement Failure: Sweeping Quality under the Rug

    ERIC Educational Resources Information Center

    Mihalic, Maria T.; Ludwig, Timothy D.

    2009-01-01

    Behavioral Systems rely on valid measurement systems to manage processes and feedback and to deliver contingencies. An examination of measurement system components designed to track customer service quality of furniture delivery drivers revealed the measurement system failed to capture information it was designed to measure. A reason for this…

  17. 43 CFR 4.1352 - Who may file; where to file; when to file.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Who may file; where to file; when to file... Indian Lands) § 4.1352 Who may file; where to file; when to file. (a) The applicant or operator may file... to file a timely request constitutes a waiver of the opportunity for a hearing before OSM makes...

  18. 75 FR 2514 - Privacy Act of 1974; System of Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-15

    ..., Department of Defense. GNSA 09 SYSTEM NAME: NSA/CSS Personnel File (January 7, 2009; 74 FR 698). CHANGES...: NSA/CSS Personnel File. SYSTEM LOCATION: Primary location: National Security Agency/Central Security...: Civilian employees, personnel under contract, military assignees, dependents of NSA/CSS personnel...

  19. 5 CFR 2422.5 - Where do you file petitions?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... received on the business day on which it is received (either by the Regional Office fax machine or by the eFiling system), until midnight local time in the Region where it is filed. But when a Region receives...

  20. 77 FR 60976 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-05

    ...: World Digital Innovations. Description: World Digital Innovations submits tariff filing per 35.17(b... p.m. ET 10/18/12. The filings are accessible in the Commission's eLibrary system by clicking on...