Science.gov

Sample records for underlying file system

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

    NASA Technical Reports Server (NTRS)

    Rao, Herman C.; Peterson, Larry L.

    1993-01-01

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

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

    NASA Technical Reports Server (NTRS)

    Peterson, Larry L.; Rao, Herman C.

    1991-01-01

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

  3. Network file-storage system

    SciTech Connect

    Collins, W.W.; Devaney, M.J.; Willbanks, E.W.

    1982-01-01

    The Common File System (CFS) is a file management and mass storage system for the Los Alamos National Laboratory's computer network. The CFS is organized as a hierarchical storage system: active files are stored on fast-access storage devices, larger, less active files are stored on slower, less expensive devices, and archival files are stored offline. Files are automatically moved between the various classes of storage by a file migration program that analyzes file activity, file size and storage device capabilities. This has resulted in a cost-effective system that provides both fast access and large data storage capability (over five trillion bits currently stored).

  4. 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.

  5. 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.

  6. Experiences on File Systems: Which is the best file system for you?

    NASA Astrophysics Data System (ADS)

    Blomer, J.

    2015-12-01

    The distributed file system landscape is scattered. Besides a plethora of research file systems, there is also a large number of production grade file systems with various strengths and weaknesses. The file system, as an abstraction of permanent storage, is appealing because it provides application portability and integration with legacy and third-party applications, including UNIX utilities. On the other hand, the general and simple file system interface makes it notoriously difficult for a distributed file system to perform well under a variety of different workloads. This contribution provides a taxonomy of commonly used distributed file systems and points out areas of research and development that are particularly important for high-energy physics.

  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. 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.

  9. A Survey on Distributed File System Technology

    NASA Astrophysics Data System (ADS)

    Blomer, J.

    2015-05-01

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

  10. DMFS: A Data Migration File System for NetBSD

    NASA Technical Reports Server (NTRS)

    Studenmund, William

    1999-01-01

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

  11. 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.

  12. 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.

  13. 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.

  14. Personal digital image filing system

    NASA Astrophysics Data System (ADS)

    Cho, Paul S.; Ratib, Osman M.; Ho, Bruce K. T.; Morioka, Craig A.; Marx, Peter S.; Huang, H. K.; Shinagawa, Toru; Sonobe, Takeo

    1990-08-01

    We are developing a personal image filing system as an alternative method of archiving radiolOgical images. The system can be configured with three popular computers as host: IBM PC/AT, Macintosh II, and SUN. The images are archived on the 3.5-inch optical disk and can be retrieved by any of the host computers for display.

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

    NASA Technical Reports Server (NTRS)

    Rao, Herman Chung-Hwa

    1991-01-01

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

  16. The Future of the Andrew File System

    ScienceCinema

    None

    2011-04-25

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

  17. Beyond a Terabyte File System

    NASA Technical Reports Server (NTRS)

    Powers, Alan K.

    1994-01-01

    The Numerical Aerodynamics Simulation Facility's (NAS) CRAY C916/1024 accesses a "virtual" on-line file system, which is expanding beyond a terabyte of information. This paper will present some options to fine tuning Data Migration Facility (DMF) to stretch the online disk capacity and explore the transitions to newer devices (STK 4490, ER90, RAID).

  18. Improving File System Performance by Striping

    NASA Technical Reports Server (NTRS)

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

    1998-01-01

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

  19. Zebra: A striped network file system

    NASA Technical Reports Server (NTRS)

    Hartman, John H.; Ousterhout, John K.

    1992-01-01

    The design of Zebra, a striped network file system, is presented. Zebra applies ideas from log-structured file system (LFS) and RAID research to network file systems, resulting in a network file system that has scalable performance, uses its servers efficiently even when its applications are using small files, and provides high availability. Zebra stripes file data across multiple servers, so that the file transfer rate is not limited by the performance of a single server. High availability is achieved by maintaining parity information for the file system. If a server fails its contents can be reconstructed using the contents of the remaining servers and the parity information. Zebra differs from existing striped file systems in the way it stripes file data: Zebra does not stripe on a per-file basis; instead it stripes the stream of bytes written by each client. Clients write to the servers in units called stripe fragments, which are analogous to segments in an LFS. Stripe fragments contain file blocks that were written recently, without regard to which file they belong. This method of striping has numerous advantages over per-file striping, including increased server efficiency, efficient parity computation, and elimination of parity update.

  20. 18 CFR 300.14 - Filings under section 7(k).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... COMMISSION, DEPARTMENT OF ENERGY REGULATIONS FOR FEDERAL POWER MARKETING ADMINISTRATIONS CONFIRMATION AND APPROVAL OF THE RATES OF FEDERAL POWER MARKETING ADMINISTRATIONS Filing Requirements § 300.14 Filings under... Northwest Electric Power Planning and Conservation Act must be filed in compliance with the provisions...

  1. UsiFe: a user space file system with support for intra-file encryption

    NASA Astrophysics Data System (ADS)

    Sharma, Rohan; Kallurkar, Prathmesh; Kumar, Saurabh; Sarangi, Smruti R.

    2011-12-01

    This paper proposes a new paradigm for the design of cryptographic filesystems. Traditionally, cryptographic file systems have mainly focused on encrypting entire files or directories. In this paper, we envisage encryption at a finer granularity, i.e. encrypting parts of files. Such an approach is useful for protecting parts of large files that typically feature in novel applications focused on handling a large amount of scientific data, GIS, and XML data. We extend prior work by implementing a user level file system on Linux, UsiFe, which supports fine grained encryption by extending the popular ext2 file system. We further explore two paradigms in which the user is agnostic to encryption in the underlying filesystem, and the user is aware that a file contains encrypted content. Popular file formats like XML, PDF, and PostScript can leverage both of these models to form the basis of interactive applications that use fine grained access control to selectively hide data. Lastly, we measure the performance of UsiFe, and observe that we can support file access for partially encrypted files with less than 15% overhead.

  2. UsiFe: a user space file system with support for intra-file encryption

    NASA Astrophysics Data System (ADS)

    Sharma, Rohan; Kallurkar, Prathmesh; Kumar, Saurabh; Sarangi, Smruti R.

    2012-01-01

    This paper proposes a new paradigm for the design of cryptographic filesystems. Traditionally, cryptographic file systems have mainly focused on encrypting entire files or directories. In this paper, we envisage encryption at a finer granularity, i.e. encrypting parts of files. Such an approach is useful for protecting parts of large files that typically feature in novel applications focused on handling a large amount of scientific data, GIS, and XML data. We extend prior work by implementing a user level file system on Linux, UsiFe, which supports fine grained encryption by extending the popular ext2 file system. We further explore two paradigms in which the user is agnostic to encryption in the underlying filesystem, and the user is aware that a file contains encrypted content. Popular file formats like XML, PDF, and PostScript can leverage both of these models to form the basis of interactive applications that use fine grained access control to selectively hide data. Lastly, we measure the performance of UsiFe, and observe that we can support file access for partially encrypted files with less than 15% overhead.

  3. 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)…

  4. 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.

  5. 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.

  6. 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.

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

    DOEpatents

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

    2015-07-21

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

  8. Adding Data Management Services to Parallel File Systems

    SciTech Connect

    Brandt, Scott

    2015-03-04

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

  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. NASA ARCH- A FILE ARCHIVAL SYSTEM FOR THE DEC VAX

    NASA Technical Reports Server (NTRS)

    Scott, P. J.

    1994-01-01

    The function of the NASA ARCH system is to provide a permanent storage area for files that are infrequently accessed. The NASA ARCH routines were designed to provide a simple mechanism by which users can easily store and retrieve files. The user treats NASA ARCH as the interface to a black box where files are stored. There are only five NASA ARCH user commands, even though NASA ARCH employs standard VMS directives and the VAX BACKUP utility. Special care is taken to provide the security needed to insure file integrity over a period of years. The archived files may exist in any of three storage areas: a temporary buffer, the main buffer, and a magnetic tape library. When the main buffer fills up, it is transferred to permanent magnetic tape storage and deleted from disk. Files may be restored from any of the three storage areas. A single file, multiple files, or entire directories can be stored and retrieved. archived entities hold the same name, extension, version number, and VMS file protection scheme as they had in the user's account prior to archival. NASA ARCH is capable of handling up to 7 directory levels. Wildcards are supported. User commands include TEMPCOPY, DISKCOPY, DELETE, RESTORE, and DIRECTORY. The DIRECTORY command searches a directory of savesets covering all three archival areas, listing matches according to area, date, filename, or other criteria supplied by the user. The system manager commands include 1) ARCHIVE- to transfer the main buffer to duplicate magnetic tapes, 2) REPORTto determine when the main buffer is full enough to archive, 3) INCREMENT- to back up the partially filled main buffer, and 4) FULLBACKUP- to back up the entire main buffer. On-line help files are provided for all NASA ARCH commands. NASA ARCH is written in DEC VAX DCL for interactive execution and has been implemented on a DEC VAX computer operating under VMS 4.X. This program was developed in 1985.

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

    Code of Federal Regulations, 2014 CFR

    2014-04-01

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

  14. Performance of the Galley Parallel File System

    NASA Technical Reports Server (NTRS)

    Nieuwejaar, Nils; Kotz, David

    1996-01-01

    As the input/output (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. This interface conceals the parallism 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. Initial experiments, reported in this paper, indicate that Galley is capable of providing high-performance 1/O to applications the applications that rely on them. In Section 3 we describe that access data in patterns that have been observed to be common.

  15. The parallel virtual file system for portals.

    SciTech Connect

    Schutt, James Alan

    2004-04-01

    This report presents the result of an effort to re-implement the Parallel Virtual File System (PVFS) using Portals as the transport. This report provides short overviews of PVFS and Portals, and describes the design and implementation of PVFS over Portals. Finally, the results of performance testing of both stock PVFS and PVFS over Portals are presented.

  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. 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.

  18. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Investigative File System. 4902.11 Section 4902.11 Labor Regulations Relating to Labor (Continued) PENSION... General Investigative File System. (a) Criminal Law Enforcement. (1) Exemption. Under the authority granted by 5 U.S.C. 552a(j)(2), PBGC hereby exempts the system of records entitled “PBGC-17, Office...

  19. 29 CFR 4902.11 - Specific exemptions: Office of Inspector General Investigative File System.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Investigative File System. 4902.11 Section 4902.11 Labor Regulations Relating to Labor (Continued) PENSION... General Investigative File System. (a) Criminal Law Enforcement. (1) Exemption. Under the authority granted by 5 U.S.C. 552a(j)(2), PBGC hereby exempts the system of records entitled “PBGC-17, Office...

  20. Distributed Data Management and Distributed File Systems

    NASA Astrophysics Data System (ADS)

    Girone, Maria

    2015-12-01

    The LHC program has been successful in part due to the globally distributed computing resources used for collecting, serving, processing, and analyzing the large LHC datasets. The introduction of distributed computing early in the LHC program spawned the development of new technologies and techniques to synchronize information and data between physically separated computing centers. Two of the most challenges services are the distributed file systems and the distributed data management systems. In this paper I will discuss how we have evolved from local site services to more globally independent services in the areas of distributed file systems and data management and how these capabilities may continue to evolve into the future. I will address the design choices, the motivations, and the future evolution of the computing systems used for High Energy Physics.

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

    DOE PAGESBeta

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

    2013-01-01

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

  2. File System Support for Digital Evidence Bags

    NASA Astrophysics Data System (ADS)

    Richard, Golden; Roussev, Vassil

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

  3. 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.

  4. 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.

  5. 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.

  6. Active Storage Processing in a Parallel File System

    SciTech Connect

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

    2006-01-01

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

  7. 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.

  8. 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.

  9. RAMA: A file system for massively parallel computers

    NASA Technical Reports Server (NTRS)

    Miller, Ethan L.; Katz, Randy H.

    1993-01-01

    This paper describes a file system design for massively parallel computers which makes very efficient use of a few disks per processor. This overcomes the traditional I/O bottleneck of massively parallel machines by storing the data on disks within the high-speed interconnection network. In addition, the file system, called RAMA, requires little inter-node synchronization, removing another common bottleneck in parallel processor file systems. Support for a large tertiary storage system can easily be integrated in lo the file system; in fact, RAMA runs most efficiently when tertiary storage is used.

  10. 76 FR 70651 - Fee for Filing a Patent Application Other Than by the Electronic Filing System

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ... the Electronic Filing System AGENCY: United States Patent and Trademark Office, Commerce. ACTION... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE... for a design, plant, or provisional application, that is not filed by electronic means as...

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

    Energy Science and Technology Software Center (ESTSC)

    2015-10-01

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

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

    SciTech Connect

    2015-10-01

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

  13. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... information from that which was previously publicly disclosed and filed under this section. (2) Any research... copies of the prospectus or § 230.135 communication if paper filing is permitted. 2. No filing...

  14. 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)...

  15. 19 CFR 191.176 - Procedures for claims filed under 19 U.S.C. 1313(p).

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 2 2012-04-01 2012-04-01 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)...

  16. 19 CFR 191.176 - Procedures for claims filed under 19 U.S.C. 1313(p).

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 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)...

  17. 19 CFR 191.176 - Procedures for claims filed under 19 U.S.C. 1313(p).

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 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)...

  18. 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

    ..., Filing of Pre-Application Document, and Approving Use of the Traditional Licensing Process a. Type of Filing: Notice of Intent to File License Application and Request to Use the Traditional Licensing Process... sean.murphy@ferc.gov . j. Aquenergy Systems, Inc. filed its request to use the Traditional...

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

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    .... Where such financial statements are incorporated by reference in a statement or report, the written... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Use of financial statements... statements filed under other acts. Where copies of certified financial statements filed under other...

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

    SciTech Connect

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

    2013-01-01

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

  1. 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.

  2. 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.

  3. 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.

  4. Re-engineering the Los Alamos Common File System

    SciTech Connect

    Christman, R.D.; Cook, D.P.; Mercier, C.W.

    1990-01-01

    The Los Alamos National Laboratory's Common File System is being substantially upgraded so it will continue to meet the future data storage needs of the Laboratory and other sites. The nature of computing is changing with the advent of workstations, different work loads, and standard approaches to networking and operating systems. We reviewed the pros and cons of the Common File System and numerous existing and planned systems. Our conclusion was that the Common File System was a valuable resource with many strengths that should be preserved for the future. We have arrived at a set of recommendations for changes and additions that we feel will allow the Common File System to continue to meet data storage needs in both the short and long term. The recommendations for 1990--1992 support the transition to Unix on supercomputers and support high performance networking. The recommendations for 1992--1995 support the transition to a Unix type file system that provides a significant level of file location transparency. For 1995--2000 the recommendations are necessarily less precise but support the notion of standard security, transparent file systems and faster networking. 11 refs.

  5. 20 CFR 429.202 - How do I file a claim under this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ....202 Section 429.202 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ADMINISTRATIVE CLAIMS UNDER THE... file. You must file your claim with the Social Security Administration, Office of the General Counsel... repairs exceeds the value of the vehicle. (3) A copy of the power of attorney or other authorization...

  6. Dynamic Non-Hierarchical File Systems for Exascale Storage

    SciTech Connect

    Long, Darrell E.; Miller, Ethan L

    2015-02-24

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

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

    NASA Technical Reports Server (NTRS)

    Follen, Gregory J.

    1997-01-01

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

  8. The Performance of PFS, the Compaq Sierra Product's Parallel File System

    SciTech Connect

    Uselton, A C

    2001-06-20

    In FY 2000 Livermore Computing took delivery of serial number one of the Compaq Sierra high performance cluster product. The Sierra product employs a derivative of the Tru64 UNIX operating system called Tru-Cluster, which provides a cluster-wide parallel file system called PFS. This report documents the observed performance of PFS along with the performance of some of the underlying file system components. Testing reveals that the underlying AdvFS file system does a good job of read-ahead and write-behind I/O performance enhancement at the expense of a high CPU utilization. On the other hand, PFS performs at only a fraction of the speed that the underlying I/O and communication hardware allow.

  9. 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.

  10. File-Management Techniques and Systems with Applications to Information Retrieval; A Selected Bibliography.

    ERIC Educational Resources Information Center

    Pietrzyk, Alfred, Comp.; And Others

    Based on material collected for system-automation studies within the efforts of the Linguistic Documentation Program toward development of a Language Information Network and Clearinghouse System (LINCS), the bibliography lists 216 references under the headings: (1) Survey, Reviews, Symposia (19 references); (2) File-organization Principles (18…

  11. Permit compliance system (PCS) facility inspection file EPA region 10 (for microcomputers). Data file

    SciTech Connect

    Not Available

    1993-09-01

    The Permit Compliance System Facility Inspection File contains data from the 2-year period of July 1, 1991, to June 30, 1993, regarding inspections for all active NPDES permitted facilities. For each permitted facility there may be multiple inspections and thus, multiple sets of inspections data.

  12. Canal-centering ability of two rotary file systems.

    PubMed

    Ponti, Tony M; McDonald, N J; Kuttler, Sergio; Strassler, Howard E; Dumsha, Thomas C

    2002-04-01

    The ability of two nickel-titanium rotary file systems to maintain the original path of the canal were compared by using a new split-mold design (the Endodontic Cube). The mesial roots of 10 mandibular first- and second-molar teeth with separate canals from orifice to foramen were divided into two groups based on canal curvature and morphology. Working lengths for each canal were determined 1.0 mm short of where the file tip was visible on the external surface of the root. The teeth were embedded in composite resin by using the Endodontic Cube as a mold and sectioned into five pieces. ProFile Ni-Ti.06 taper Series 29 and ProFile GT rotary instrumentation techniques were randomly assigned to one of the canals and used in a crown-down fashion to a 0.217 ProFile and a 0.06 GT master apical file, respectively. Digital photographs were made of the middle three sections and software features of Adobe Photoshop were used to measure the movement of the canal centers by superimposing the images of the instrumented and uninstrumented canals. Data were analyzed using ANOVA. Both systems remained centered within the canal with minimal deviation from the original canal path. The largest mean movement was less than 0.15 mm. The Endodontic Cube was an effective tool for studying and comparing instrumentation techniques. PMID:12043864

  13. PVFS : a parallel file system for linux clusters

    SciTech Connect

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

    2000-04-27

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

  14. 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.

  15. 29 CFR 1602.43 - Commission's remedy for school systems' or districts' failure to file report.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 4 2010-07-01 2010-07-01 false Commission's remedy for school systems' or districts' failure to file report. 1602.43 Section 1602.43 Labor Regulations Relating to Labor (Continued) EQUAL EMPLOYMENT OPPORTUNITY COMMISSION RECORDKEEPING AND REPORTING REQUIREMENTS UNDER TITLE VII, THE ADA AND GINA Elementary-Secondary Staff...

  16. TOXICS RELEASE INVENTORY - GEOGRAPHIC INFORMATION SYSTEM COVERAGE FILES

    EPA Science Inventory

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

  17. 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.

  18. 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.

  19. 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.

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

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

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

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 47 CFR 4.2 - Availability of reports filed under this part.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

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

  8. 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...

  9. Lightweight File System (LWFS) v. 1.0

    SciTech Connect

    2008-11-19

    The Lightweight File System (LWFS) is a storage system that provides a minimal set of I/O-system functionality required by file system and/or I/O library implementations for massively parallel machines. In particular, the LWFS-core consists of a scalable security model, an efficient data-movement protocol, and a direct interface to object-based storage devices. Higher-level services such as namespace management, consistency semantics, reliability, and so forth are layered on top of the core services to provide application-specific functionality as needed. The LWFS code contains implementations of the core services and reference implementations of a number of supplemental services for namespace management and transaction support.

  10. Lightweight File System (LWFS) v. 1.0

    Energy Science and Technology Software Center (ESTSC)

    2008-11-19

    The Lightweight File System (LWFS) is a storage system that provides a minimal set of I/O-system functionality required by file system and/or I/O library implementations for massively parallel machines. In particular, the LWFS-core consists of a scalable security model, an efficient data-movement protocol, and a direct interface to object-based storage devices. Higher-level services such as namespace management, consistency semantics, reliability, and so forth are layered on top of the core services to provide application-specific functionalitymore » as needed. The LWFS code contains implementations of the core services and reference implementations of a number of supplemental services for namespace management and transaction support.« less

  11. NASIS data base management system - IBM 360/370 OS MVT implementation. 6: NASIS message file

    NASA Technical Reports Server (NTRS)

    1973-01-01

    The message file for the NASA Aerospace Safety Information System (NASIS) is discussed. The message file contains all the message and term explanations for the system. The data contained in the file can be broken down into three separate sections: (1) global terms, (2) local terms, and (3) system messages. The various terms are defined and their use within the system is explained.

  12. 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.

  13. 37 CFR 1.109 - Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2013-07-01 2013-07-01 false Effective filing date of a claimed invention under the Leahy-Smith America Invents Act. 1.109 Section 1.109 Patents, Trademarks, and... a claimed invention under the Leahy-Smith America Invents Act. (a) The effective filing date for...

  14. 37 CFR 1.109 - Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Effective filing date of a claimed invention under the Leahy-Smith America Invents Act. 1.109 Section 1.109 Patents, Trademarks, and... a claimed invention under the Leahy-Smith America Invents Act. (a) The effective filing date for...

  15. 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

    ... required to file an annual information return under section 6033(a)(1) (taxable years beginning after... TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Information Returns § 1.6033-6 Notification requirement for entities not required to file an annual information return under section...

  16. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... required to file an annual information return under section 6033(a)(1) (taxable years beginning after... TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Information Returns § 1.6033-6 Notification requirement for entities not required to file an annual information return under section...

  17. 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... TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Information Returns § 1.6033-6 Notification requirement for entities not required to file an annual information return under section 6033(a)(1)...

  18. 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.

  19. 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…

  20. VAXIMA. Computer Algebra System Under UNIX

    SciTech Connect

    Fateman, R.

    1992-03-16

    VAXIMA, derived from Project MAC`s SYmbolic MAnipulation system MACSYMA, is a large computer programming system written in LISP, used for performing symbolic as well as numerical mathematical manipulations. With VAXIMA, the user can differentiate, integrate, take limits, solve systems of linear or polynomial equations, factor polynomials, expand functions in Laurent or Taylor series, solve differential equations with direct or transform methods, compute Poisson series, plot curves, and manipulate matrices and tensors. A language similar to ALGOL-60 permits users to write their own program for transforming symbolic expressions. Franz Lisp OPUS 38 provides the environment for VAXIMA`s development and use on the DEC VAX11 executing under the Berkeley UNIX Release 4.2 operating system. An executable version of Lisp (the Lisp interpreter) and Liszt (the Lisp compiler) as well as the complete documentation files are included.

  1. 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.

  2. 76 FR 37805 - New York Independent System, Operator, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission New York Independent System, Operator, Inc.; Notice of Filing Take notice that, on June 21, 2011, the New York Independent System Operator, Inc. filed to amend its filing in...

  3. The MIDAS Table File System and the Data Organizer

    NASA Astrophysics Data System (ADS)

    Peron, M.; Grosbol, P.

    1993-01-01

    Before being able to actually reduce and analyse a new set of observations, the observer has to prepare, sort out and arrange the data, that is for instance, make a first quality check, classify data according to a set of rules and associate with each science frame a set of relevant calibration frames. This task can be cumbersome because of the complexity of the instruments and the large number of data files they produce. In the first part of the paper, the MIDAS Table File System (TFS) as such is introduced and utilities for relational database operations are described in detail. The prototype of a Data Organizer based on the TFS is presented. It uses only existing tools in a very straightforward and user-friendly way.

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

    PubMed

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

    2012-01-01

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

  5. 26 CFR 301.6033-4 - Required use of magnetic media for returns by organizations required to file returns under...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

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

  6. 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...

  7. 78 FR 54879 - Notice of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-06

    ... of Filing of Self-Certification of Coal Capability Under the Powerplant and Industrial Fuel Use Act... of a new combined cycle electric powerplant, submitted a coal capability self-certification to the....61(c). ADDRESSES: Copies of coal capability self-certification filings are available for...

  8. 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...

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

    Code of Federal Regulations, 2011 CFR

    2011-04-01

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

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

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... of deposit and recorded in the overnight delivery service's on-line tracking system; and (ii) The... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... the reporting entity is not required to file electronically in accordance with 11 CFR 104.18....

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

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... of deposit and recorded in the overnight delivery service's on-line tracking system; and (ii) The... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... the reporting entity is not required to file electronically in accordance with 11 CFR 104.18....

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

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... of deposit and recorded in the overnight delivery service's on-line tracking system; and (ii) The... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... the reporting entity is not required to file electronically in accordance with 11 CFR 104.18....

  15. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... of deposit and recorded in the overnight delivery service's on-line tracking system; and (ii) The... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... the reporting entity is not required to file electronically in accordance with 11 CFR 104.18....

  16. 11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... day after the date of deposit and recorded in the overnight delivery service's on-line tracking system... file electronically under 11 CFR 104.18, may file 24-hour reports using the Commission's website's on... the reporting entity is not required to file electronically in accordance with 11 CFR 104.18....

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

    EPA Science Inventory

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

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

    NASA Technical Reports Server (NTRS)

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

    1973-01-01

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

  20. 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.

  1. A database management system for residency applicant files.

    PubMed

    Ledwith, M; Myers, A R

    1988-04-01

    An automated system for recording information pertaining to applicants to the Internal Medicine Residency Program at Temple University Hospital was developed in 1983. Major objectives were to improve recordkeeping, filing, communication with applicants, and efficiency of the review committee's process. Reports generated have permitted tracking of the applicant pool throughout the recruiting season and collection of statistics which may be compared with prior years. The capacity of the Residency Office to market the Internal Medicine Residency Program through prompt, accurate, and personal communication with each applicant has been facilitated. PMID:3370956

  2. 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.

  3. 17 CFR 242.608 - Filing and amendment of national market system plans.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 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 of national market system plans. (a) Filing of national market system plans and amendments thereto. (1)...

  4. 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.

  5. An Empirical Study of FTL Performance in Conjunction with File System Pursuing Data Integrity

    NASA Astrophysics Data System (ADS)

    Doh, In Hwan; Shim, Myoung Sub; Kim, Eunsam; Choi, Jongmoo; Lee, Donghee; Noh, Sam H.

    Due to the detachability of Flash storage, which is a dominant portable storage, data integrity stored in Flash storages becomes an important issue. This study considers the performance of Flash Translation Layer (FTL) schemes embedded in Flash storages in conjunction with file system behavior that pursue high data integrity. To assure extreme data integrity, file systems synchronously write all file data to storage accompanying hot write references. In this study, we concentrate on the effect of hot write references on Flash storage, and we consider the effect of absorbing the hot write references via nonvolatile write cache on the performance of the FTL schemes in Flash storage. In so doing, we quantify the performance of typical FTL schemes for a realistic digital camera workload that contains hot write references through experiments on a real system environment. Results show that for the workload with hot write references FTL performance does not conform with previously reported studies. We also conclude that the impact of the underlying FTL schemes on the performance of Flash storage is dramatically reduced by absorbing the hot write references via nonvolatile write cache.

  6. 18 CFR Appendix A to Part 380 - Minimum Filing Requirements for Environmental Reports Under the Natural Gas Act

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 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...

  7. 18 CFR Appendix A to Part 380 - Minimum Filing Requirements for Environmental Reports Under the Natural Gas Act

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 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...

  8. 18 CFR Appendix A to Part 380 - Minimum Filing Requirements for Environmental Reports Under the Natural Gas Act

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 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...

  9. 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...

  10. 18 CFR Appendix A to Part 380 - Minimum Filing Requirements for Environmental Reports Under the Natural Gas Act

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 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...

  11. 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.

  12. 75 FR 52527 - New York Independent System Operator, Inc. Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-26

    ... Energy Regulatory Commission New York Independent System Operator, Inc. Notice of Filings August 19, 2010... New York Independent System Operator, Inc., the International Transmission Company, and the Midwest... Regulatory Commission's July 15, 2010 Order on Compliance Filing, New York Independent System Operator,...

  13. 75 FR 5075 - New York Independent System Operator, Inc.; Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-01

    ... Energy Regulatory Commission New York Independent System Operator, Inc.; Notice of Filings January 22... Independent System Operator, Inc. (NYISO), filed in compliance with the Commission's January 15, 2010 Order in... proceeding and additional information directed by the Commission.\\2\\ \\1\\ New York Independent System...

  14. 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.

  15. 77 FR 56839 - California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-14

    ... Energy Regulatory Commission California Independent System Operator Corporation; Notice of Filing Take notice that on July 9, 2012, California Independent System Operator Corporation submitted their..., California Independent System Operator Corporation, Order Granting Complaint And Directing A...

  16. 78 FR 79690 - California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-31

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

  17. 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...

  18. 75 FR 4061 - New York Independent System Operator, Inc; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-26

    ... Energy Regulatory Commission New York Independent System Operator, Inc; Notice of Filing January 15, 2010. Take notice that on January 8, 2010, New York Independent System Operator, Inc. (NYISO), pursuant to... (2009), filed a petition that the Commission grant a declaratory order clarifying the status of New...

  19. 75 FR 2137 - New York Independent System Operator, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission New York Independent System Operator, Inc.; Notice of Filing January 5, 2010. Take notice that on December 31, 2009, New York Independent System Operator, Inc filed in...

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

    Code of Federal Regulations, 2011 CFR

    2011-04-01

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

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

    Code of Federal Regulations, 2010 CFR

    2010-04-01

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

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

    Code of Federal Regulations, 2012 CFR

    2012-04-01

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

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

    Code of Federal Regulations, 2014 CFR

    2014-04-01

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

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

    SciTech Connect

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

    2009-01-01

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

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

    PubMed

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

    2013-01-01

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

  6. 75 FR 39243 - California Independent System; Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission California Independent System; Operator Corporation; Notice of Filing June 30, 2010. Take notice that on June 29, 2010, the California Independent System Operator...

  7. 76 FR 39867 - Midwest Independent Transmission System Operator, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-07

    ... 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 June 27, 2011, Midwest Independent Transmission System Operator, Inc. submitted...

  8. 75 FR 1363 - City of Riverside, CA, California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-11

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission City of Riverside, CA, California Independent System Operator Corporation... and the California Independent System Operator Corporation filed its seventh annual revision to...

  9. 75 FR 1362 - City of Anaheim, CA, California Independent System Operator Corporation; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-11

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission City of Anaheim, CA, California Independent System Operator Corporation... the California Independent System Operator Corporation filed is seventh annual revision to...

  10. 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....

  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. [EEG data filing system with personal computer and magneto-optical disc].

    PubMed

    Kitamura, K; Takizawa, Y; Nishitani, A; Futamata, H; Matsubara, F; Furuta, T; Jibiki, I; Yamaguchi, N

    1991-08-01

    We established a new computerized EEG filing system, in which an EEG machine was connected to an EEG filing unit which consisted of a personal computer with a 32 bit CPU, 18 channel analog -to-digital and digital-to-analog converters, and a magneto-optical disc driver. This system has the following merits. The system was space-saving, the space required to store the EEG data, being only 1/500 of that required for storing EEG record. Though the system had two independent EEG filing units, our original file configuration enabled us to have access to all of the recorded EEG data anytime for more than 10 years. The system enabled us to display EEG data continuously on the high resolution CRT, just as if turning the page of an EEG record paper, and through the quick scanning, enabled us to view the entire EEG pattern. Furthermore, the system enabled us to conduct reliable digital analysis for EEG data by entering the EEG data without artifacts into a data processor after confirmation on the display. In the system, we used data files with the MS-DOS operating system. This enabled us to analyze the data obtained by a personal computer operating on other systems, by transferring the data to a floppy disc operating on our system. Our EEG filing system allows quick access to data as well as mass data storage. PMID:1920882

  13. 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).

  14. 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...

  15. 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...

  16. 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...

  17. 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...

  18. 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...

  19. 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

    ... 37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the Uruguay Round Agreements Act. 201.34 Section 201.34 Patents, Trademarks, and Copyrights U.S. COPYRIGHT OFFICE, LIBRARY OF CONGRESS COPYRIGHT OFFICE AND PROCEDURES GENERAL PROVISIONS...

  20. 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

    ... requirement of coal capability, the owner or operator of such a facility proposing to use natural gas or... 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)...

  1. 76 FR 48833 - Notice of Filings of Self-Certifications of Coal Capability Under the Powerplant and Industrial...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-09

    ... of Filings of Self-Certifications of Coal Capability Under the Powerplant and Industrial Fuel Use Act... owners of three new base load electric powerplants submitted coal capability self-certifications to the... publish a notice of receipt of self-certifications in the Federal Register. ADDRESSES: Copies of...

  2. 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

    ... requirement of coal capability, the owner or operator of such a facility proposing to use natural gas or... 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)...

  3. 26 CFR 1.6033-6 - Notification requirement for entities not required to file an annual information return under...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 13 2014-04-01 2014-04-01 false Notification requirement for entities not 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...

  4. 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

    ... 26 Internal Revenue 13 2013-04-01 2013-04-01 false Notification requirement for entities not 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...

  5. Microcomputer-assisted filing system of cardiac catheterization records using a relational database management system.

    PubMed

    Mohri, M; Kikuchi, Y; Sagara, T; Sugihara, M

    1988-03-01

    To efficiently store and retrieve cardiac catheterization records, we have developed a computer-assisted database, which comprises a 16-bit microcomputer with dual floppy disk drives, a 20 MB random-access memory, hard disk drive, and a line printer. All programmings were accomplished using a relational database management system (R:base 5000, Microrim, Inc.). Data inquiry procedures could be performed with direct operational commands of the system as well as with preprogrammed command files, and final results of searches were printed out with a line printer. The major advantages of the present system described in this report include: (1) the relatively easy and rapid creation of the database, (2) ease of modification of the database structures even after the system design is finished, (3) operational commands in combination with conditional operator(s) are flexible and powerful enough to allow the end user to retrieve data based on various kinds of criteria, (4) a high-level programming language provided by the R:base automates a series of database procedures with relative ease, (5) relational capabilities of the database management system can enhance the possibility of reconstruction of a new data file from a single or several preexisting data files, and (6) the system can be realized at reasonable cost. PMID:3258556

  6. 75 FR 27986 - Electronic Filing System-Web (EFS-Web) Contingency Option

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ...The United States Patent and Trademark Office (USPTO) is increasing the availability of its patent electronic filing system, 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 users during such an outage. The contingency option in EFS-Web will......

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

    PubMed Central

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

    2013-01-01

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

  8. 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.

  9. Image save and carry system-based teaching-file library

    NASA Astrophysics Data System (ADS)

    Morimoto, Kouji; Kimura, Michio; Fujii, Toshiyuki

    1994-05-01

    Digital imaging technology has introduced some new possibilities of forming teaching files without films. IS&C (Image Save & Carry) system, which is based on magneto-optic disc, is a good medium for this purpose, because of its large capacity, prompt access time, and unified format independent of operating systems. The author have constructed a teaching file library, on which user can add and edit images. CD-ROM and IS&C satisfy most of basic criteria for teaching file construction platform. CD-ROM is the best medium for circulating large numbers of identical copies, while IS&C is advantageous in personal addition and editing of library.

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

    NASA Astrophysics Data System (ADS)

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

    2012-12-01

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

  11. 75 FR 48629 - Electronic Tariff Filing System (ETFS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

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

  12. 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.

  13. 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.

  14. 77 FR 61596 - American Municipal Power, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Energy Regulatory Commission American Municipal Power, Inc.; Notice of Filing Take notice that on October 1, 2012, American Municipal Power, Inc. filed its Revised and Superseding Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission System Operator, Inc....

  15. 77 FR 61595 - Kentucky Municipal Power Agency; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Energy Regulatory Commission Kentucky Municipal Power Agency; Notice of Filing Take notice that on October 1, 2012, Kentucky Municipal Power Agency filed its Revised and Superseding Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission System Operator, Inc....

  16. 77 FR 61595 - Southern Illinois Power Cooperative; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Energy Regulatory Commission Southern Illinois Power Cooperative; Notice of Filing Take notice that on October 1, 2012, Southern Illinois Power Cooperative filed its Revised and Superseding Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission System Operator, Inc....

  17. 77 FR 61594 - Indiana Municipal Power Agency; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Energy Regulatory Commission Indiana Municipal Power Agency; Notice of Filing Take notice that on October 1, 2012, Indiana Municipal Power Agency filed its Revised and Superseding Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission System Operator, Inc....

  18. 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.

  19. 49 CFR 1152.12 - Filing and publication.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... TRANSPORTATION UNDER 49 U.S.C. 10903 System Diagram § 1152.12 Filing and publication. (a) Each carrier required to file a system diagram map or a narrative shall file with the Board three copies of a complete and up-dated color-coded system diagram map or narrative (identified by its “AB number”) and...

  20. 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.

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

    NASA Astrophysics Data System (ADS)

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

    2015-05-01

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

  2. Research of the file system of volume holographic storage based on virtual storage layer

    NASA Astrophysics Data System (ADS)

    Wu, Fei; Yi, Faling; Xie, Changsheng

    2008-02-01

    Volume holographic storage (VHS) is currently the subject of widespread interest as a fast-readout-rate, high-capacity digital data-storage technology. To make need of characteristics of the VHS, the paper present the file system using a virtual storage layer (VSL) which can be compatible with the logic layer of the current used file system and accommodate the requirement of VHS in the physical layer. The VSL which is made of the super block, directory area, the metadata area and dynamic file area can connect directly to the storage media one side and implement compatible to the existing file system by providing the operating interfaces for the above logical file system. We produce the two layer storage structure which effectively reduces the number of disk accessed and improves the speed of file read and write. The allocation mode of 'hybrid of block and zone' and allocation strategy of 'block priority' greatly improve the space utilization rate of storage device and enforce the storage adaptability in VHS.

  3. 76 FR 9780 - Notification of Deletion of System of Records; EPA Parking Control Office File (EPA-10) and EPA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... EPA Parking Control Office File (EPA-10), published in the Federal Register on January 25, 1978 (43 FR... 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...

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

    PubMed

    Kimura, Eizen; Ishihara, Ken

    2015-01-01

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

  5. 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.

  6. Handheld access to radiology teaching files: an automated system for format conversion and content creation

    NASA Astrophysics Data System (ADS)

    Raman, Raghav; Raman, Lalithakala; Raman, Bhargav; Gold, Garry; Beaulieu, Christopher F.

    2002-05-01

    Current handheld Personal Digital Assistants (PDAs) can be used to view radiology teaching files. We have developed a toolkit that allows rapid creation of radiology teaching files in handheld formats from existing repositories. Our toolkit incorporated a desktop converter, a web conversion server and an application programming interface (API). Our API was integrated with an existing pilot teaching file database. We evaluated our system by obtaining test DICOM and JPEG images from our PACS system, our pilot database and from personal collections and converting them on a Windows workstation (Microsoft, Redmond, CA) and on other platforms using the web server. Our toolkit anonymized, annotated and categorized images using DICOM header information and data entered by the authors. Image processing was automatically customized for the target handheld device. We used freeware handheld image viewers as well as our custom applications that allowed window/level manipulation and viewing of additional textual information. Our toolkit provides desktop and web access to image conversion tools to produce organized handheld teaching file packages for most handheld devices and our API allows existing teaching file databases to incorporate handheld compatibility. The distribution of radiology teaching files on PDAs can increase the accessibility to radiology teaching.

  7. Longitudinal and Transverse Single File Diffusion in Quasi-1D Systems

    NASA Astrophysics Data System (ADS)

    Coste, Christophe; Delfau, Jean-Baptiste; Saint Jean, Michel

    2014-07-01

    We review our recent results on Single File Diffusion (SFD) of a chain of particles that cannot cross each other, in a thermal bath, with long ranged interactions, and arbitrary damping. We exhibit new behaviors specifically associated to small systems and to small damping. The fluctuation dynamics is explained by the decomposition of the particles' motion in the normal modes of the chain. For longitudinal fluctuations, we emphasize the relevance of the soft mode linked to the translational invariance of the system to the long time SFD behavior. We show that close to the zigzag threshold, the transverse fluctuations also exhibit the SFD behavior, characterized by a mean square displacement that increases as the square root of time. This cannot be explained by the single file ordering, and the SFD behavior results from the strong correlation of the transverse displacements of neighbouring particles near the bifurcation. Extending our analytical modelization, we demonstrate the existence of this subdiffusive regime near the zigzag transition, in the thermodynamic limit. The zigzag transition is a supercritical pitchfork bifurcation, and we show that the transverse SFD behavior is closely linked to the vanishing of the frequency of the zigzag transverse mode at the bifurcation threshold. Special Issue Comments: This article presents mathematical results on the dynamics in files with longitudinal movements. This article is connected to the Special Issue articles about advanced statistical properties in single file dynamics,28 expanding files,63 and files with force and advanced formulations.29

  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. 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.

  10. 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...

  11. Planning ATES systems under uncertainty

    NASA Astrophysics Data System (ADS)

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

    2015-04-01

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

  12. 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.

  13. 77 FR 16220 - Spartanburg Water System; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ... Energy Regulatory Commission Spartanburg Water System; Notice of Preliminary Permit Application Accepted..., 2011, Spartanburg Water System (Spartanburg) filed an application for a preliminary permit, pursuant to... concrete dam, owned by Spartanburg; (2) a reservoir with a surface area of 1,050.0 acres and a...

  14. 76 FR 67179 - Spartanburg Water System; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... Energy Regulatory Commission Spartanburg Water System; Notice of Preliminary Permit Application Accepted..., Spartanburg Water System (Spartanburg) filed an application for a preliminary permit, pursuant to section 4(f..., 12-foot-wide concrete headrace channel; (4) a powerhouse containing one generating unit with a...

  15. 77 FR 19011 - Spartanburg Water System; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-29

    ... Energy Regulatory Commission Spartanburg Water System; Notice of Preliminary Permit Application Accepted..., 2012, Spartanburg Water System (Spartanburg) filed an application for a preliminary permit, pursuant to.... The proposed project would consist of: (1) An existing 673-foot- long concrete dam, owned...

  16. 75 FR 6378 - New York Independent System Operator, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-09

    ... Energy Regulatory Commission New York Independent System Operator, Inc.; Notice of Filing February 2, 2010. Take notice that on January 26, 2010, New York Independent System Operator, Inc. submitted its... Operator, Inc., Deficiency Letter at 2, Docket No. ER10-290-000 (issued January 6, 2010). Any...

  17. 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.

  18. 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

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

    SciTech Connect

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

    2008-12-11

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

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

    NASA Technical Reports Server (NTRS)

    Wang, Peter Hor-Ching

    1996-01-01

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

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

    SciTech Connect

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

    2004-04-30

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

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

    PubMed Central

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

    2015-01-01

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

  3. 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

  4. 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.

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

    ERIC Educational Resources Information Center

    Miller, Howard L.; Woodin, Ralph J.

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

  6. 78 FR 63159 - Amendment to Certification of Nebraska's Central Filing System

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-23

    ...In response to a request from Nebraska's Secretary of State we are approving amendments to the debtor identification and signature requirements of the certified central filing system for Nebraska to permit the conversion of all debtor social security and taxpayer identification numbers into approved unique identifiers. The proposed specific procedure whereby Nebraska will automatically convert......

  7. 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

    ... new export reporting requirements. See 78 FR 16366. In particular, the rule implemented a requirement... final rule published on March 14, 2013, (78 FR 16366) is delayed until April 5, 2014. OMB approved the... Export System Filing for All Shipments Requiring Shipper's Export Declaration Information:...

  8. 75 FR 15429 - San Diego Gas & Electric Co.; California Independent System Operator; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission San Diego Gas & Electric Co.; California Independent System Operator; Notice of Filing March 22, 2010. Take notice that on July 20, 2009, Avista Energy, Inc. pursuant to...

  9. 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...

  10. 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.

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

    NASA Technical Reports Server (NTRS)

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

    2007-01-01

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

  12. Development and Use of a Termatrex Chemical File System

    ERIC Educational Resources Information Center

    Legatt, Theodore; And Others

    1972-01-01

    A storage and retrieval system for chemical structures, using optical coincidence, is in use at Schering Corp. The system rapidly provides the research laboratories with structural information at any generic level. The design, maintenance, costs, and applications are discussed. (4 references) (Author)

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

    PubMed

    Meireles, Daniely Amorin; Bastos, Mariana Mena Barreto; Marques, André Augusto Franco; Garcia, Lucas da Fonseca Roberti; Sponchiado, Emílio Carlos

    2013-08-01

    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

  14. 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

  15. A personal computer program to transfer MultiMate files to automated office system documents

    SciTech Connect

    Kern, J.N.

    1989-01-27

    A personal computer/disk operating system program, MultiMate to DEC WPS (MMWPS), was developed to read a MultiMate DOC file, interpret it into an ASCII text stream, then type it out the serial port at the baud rate and other serial port parameters specified when the program began. This program provides a simple way to incorporate a MultiMate document into the automated office system editor, WPS-Plus. 2 refs.

  16. 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,...

  17. 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.

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

    NASA Astrophysics Data System (ADS)

    Lomholt, Michael A.; Ambjörnsson, Tobias

    2014-03-01

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

  19. 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.

  20. [Centralization of all medical laboratory data by laser disk filing system].

    PubMed

    Ueda, H; Kuriyama, K; Tadano, J

    1990-12-01

    In recent years, the medical laboratory system is being widely applied. We describe the medical laboratory system of our Saga Medical School Hospital, including the electrocardiogram (ECG) and electroencephalogram (EEG) laser disk data filing systems. The main computer system of FUJITSU M-730/4 (main memory of host computer 13 MB) handles a large amount of data, in the fields of chemistry, hematology, serology, microbiology, blood banking and histology laboratory. All 17 chemistry and hematology automatic analyzers are linked through communication lines to the main computer. The important tasks of this system are data processing, storing of information in the database, data reporting and quality control statistics. This laboratory system is also connected to the total hospital information system of FUJITSU M-760, main memory 48 MB. For pattern recognition, ECG and EEG laser disk data filing systems have been constructed. The main purpose of these filing systems is mass storage of analog data signals in laser disk, computer assisted analysis and data communication. ECG and EEG analog data are converted into digital form by the analog-to-digital converter, and then transmitted over hospital telephone lines to the central computer system for analysis. The computer assisted statements are then sent back to the ECG terminals at the nurse station. As necessary, after the physician reads over the ECG, statements are printed in the final reports. These optical reporting systems are also linked to the total hospital information system. One of the main tasks in the laboratory is the control of the seemingly endless paper work.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:2082031

  1. Architecture of scalability file system for meteorological observation data storing

    NASA Astrophysics Data System (ADS)

    Botygin, I. A.; Popov, V. N.; Tartakovsky, V. A.; Sherstnev, V. S.

    2015-11-01

    The approach allows to organize distributed storage of large amounts of diverse data in order to further their parallel processing in high performance cluster systems for problems of climatic processes analysis and forecasting. For different classes of data was used the practice of using meta descriptions - like formalism associated with certain categories of resources. Development of a metadata component was made based on an analysis of data of surface meteorological observations, atmosphere vertical sounding, atmosphere wind sounding, weather radar observing, observations from satellites and others. A common set of metadata components was formed for their general description. The structure and content of the main components of a generalized meta descriptions are presented in detail on the example of reporting meteorological observations from land and sea stations.

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

    PubMed

    Kawakami, Satoshi

    2004-03-01

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

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

    PubMed Central

    Xiao, Guoqiang; Peng, Xiaoning

    2014-01-01

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

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

    PubMed

    Liao, Jianwei; Xiao, Guoqiang; Peng, Xiaoning

    2014-01-01

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

  5. 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.

  6. 20 CFR 429.202 - How do I file a claim under this subpart?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... FEDERAL TORT CLAIMS ACT AND RELATED STATUTES Claims Under the Military Personnel and Civilian Employees... damage occurred while you were transporting your property or using a motor vehicle. (vii) All available... the vehicle or a statement from an authorized dealer or repair garage showing that the cost of...

  7. 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.

  8. 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

  9. 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

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

    Code of Federal Regulations, 2013 CFR

    2013-04-01

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

  11. 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

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset-backed securities. 230.426 Section 230.426 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION GENERAL RULES AND REGULATIONS, SECURITIES ACT OF 1933 Form and Content...

  12. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 17 Commodity and Securities Exchanges 2 2011-04-01 2011-04-01 false Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset-backed securities. 230.426 Section 230.426 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION GENERAL RULES AND REGULATIONS, SECURITIES ACT OF 1933 Form and Content...

  13. Register file soft error recovery

    DOEpatents

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

    2013-10-15

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

  14. Comparison of working length control consistency between hand K-files and Mtwo NiTi rotary system

    PubMed Central

    Krajczár, Károly; Varga, Enikő; Jeges, Sára; Tóth, Vilmos

    2016-01-01

    Background The purpose of this study was to investigate the consistency of working length control between hand instrumentation in comparison to engine driven Mtwo nickel-titanium rotary files. Material and Methods Forty extracted maxillary molars were selected and divided onto two parallel groups. The working lengths of the mesiobuccal root canals were estimated. The teeth were fixed in a phantom head. The root canal preparation was carried out group 1 (n=20) with hand K-files, (VDW, Munich, Germany) and group 2 (n=20) with Mtwo instruments (VDW, Munich, Germany). Vestibulo-oral and mesio-distal directional x-ray images were taken before the preparation with #10 K-file, inserted into the mesiobuccal root canal to the working length, and after preparation with #25, #30 and #40 files. Working lenght changes were detected with measurements between the radiological apex and the instrument tips. Results In the Mtwo group a difference in the working competency (p<0.05) could be noticed only in the vestibulo-oral direction from #10 to #40 file. The hand instrument group showed a significant difference in working length competency for each larger file size (p<0.05) (ANOVA). Regression analysis in the hand instrumentation group indicated a working length decrease with a mean of 0,2 mm after each consecutive file size (p<0.01). Conclusions The outcome of our trial indicated a high consistency in working length control for root canal preparation under simulated clinical condition using Mtwo rotary files. Mtwo NiTi rotary file did therefore proved to be more accurate in comparison to the conventional hand instrumentation. Key words:Working length, Mtwo, nickel-titanium, hand preparation, engine driven preparation.

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

    SciTech Connect

    Pratt, L.

    1988-01-01

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

  16. Evaluation of clinical data in childhood asthma. Application of a computer file system

    SciTech Connect

    Fife, D.; Twarog, F.J.; Geha, R.S.

    1983-10-01

    A computer file system was used in our pediatric allergy clinic to assess the value of chest roentgenograms and hemoglobin determinations used in the examination of patients and to correlate exposure to pets and forced hot air with the severity of asthma. Among 889 children with asthma, 20.7% had abnormal chest roentgenographic findings, excluding hyperinflation and peribronchial thickening, and 0.7% had abnormal hemoglobin values. Environmental exposure to pets or forced hot air was not associated with increased severity of asthma, as assessed by five measures of outcome: number of medications administered, requirement for corticosteroids, frequency of clinic visits, frequency of emergency room visits, and frequency of hospitalizations.

  17. 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.

  18. 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

    ... Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. (a) The Federal Docket Management System (FDMS). (1) Documents filed in a civil penalty adjudication are kept in the Federal Docket Management System (FDMS), except for documents that...

  19. 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

    ... Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. (a) The Federal Docket Management System (FDMS). (1) Documents filed in a civil penalty adjudication are kept in the Federal Docket Management System (FDMS), except for documents that...

  20. 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.

  1. 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…

  2. 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.

  3. 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. PMID:25816688

  4. cadcVOFS: A FUSE Based File System Layer for VOSpace

    NASA Astrophysics Data System (ADS)

    Kavelaars, J.; Dowler, P.; Jenkins, D.; Hill, N.; Damian, A.

    2012-09-01

    The CADC is now making extensive use of the VOSpace protocol for user managed storage. The VOSpace standard allows a diverse set of rich data services to be delivered to users via a simple protocol. We have recently developed the cadcVOFS, a FUSE based file-system layer for VOSpace. cadcVOFS provides a filesystem layer on-top of VOSpace so that standard Unix tools (such as ‘find’, ‘emacs’, ‘awk’ etc) can be used directly on the data objects stored in VOSpace. Once mounted the VOSpace appears as a network storage volume inside the operating system. Within the CADC Cloud Computing project (CANFAR) we have used VOSpace as the method for retrieving and storing processing inputs and products. The abstraction of storage is an important component of Cloud Computing and the high use level of our VOSpace service reflects this.

  5. GENPRO: automatic generation of Prolog clause files for knowledge-based systems in the biomedical sciences.

    PubMed

    Saldanha, J; Eccles, J R

    1989-03-01

    With the increasing interest in using knowledge-based approaches for protein structure prediction and modelling, there is a requirement for general techniques to convert molecular biological data into structures that can be interpreted by artificial intelligence programming languages (e.g. Prolog). We describe here an interactive program that generates files in Prolog clausal form from the most commonly distributed protein structural data collections. The program is flexible and enables a variety of clause structures to be defined by the user through a general schema definition system. Our method can be extended to include other types of molecular biological database or those containing non-structural information, thus providing a uniform framework for handling the increasing volume of data available to knowledge-based systems in biomedicine. PMID:2702815

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

    SciTech Connect

    Otoo, Ekow; Rotem, Doron; Romosan, Alexandru

    2004-04-24

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

  7. 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.

  8. 17 CFR 274.200 - Form N-17D-1, report filed by small business investment company (SBIC) registered under the...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Form N-17D-1, report filed by small business investment company (SBIC) registered under the Investment Company Act of 1940 and an affiliated bank, with respect to investments by the SBIC and the bank, submitted pursuant to paragraph (d)(3) of § 270.17d-1 of this chapter....

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

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Form of application to be filed by distributor under section 7(a), seeking gas service of not more than 2,000 Mcf per day (3d year of operation) for a single community (see § 156.3(d) of this chapter). 250.6 Section 250.6 Conservation of Power and Water Resources...

  10. Cognitive and neuronal systems underlying obesity.

    PubMed

    Kanoski, Scott E

    2012-06-01

    Since the late 1970s obesity prevalence and per capita food intake in the USA have increased dramatically. Understanding the mechanisms underlying the hyperphagia that drives obesity requires focus on the cognitive processes and neuronal systems controlling feeding that occurs in the absence of metabolic need (i.e., "non-homeostatic" intake). Given that a portion of the increased caloric intake per capita since the late 1970s is attributed to increased meal and snack frequency, and given the increased pervasiveness of environmental cues associated with energy dense, yet nutritionally depleted foods, there's a need to examine the mechanisms through which food-related cues stimulate excessive energy intake. Here, learning and memory principles and their underlying neuronal substrates are discussed with regard to stimulus-driven food intake and excessive energy consumption. Particular focus is given to the hippocampus, a brain structure that utilizes interoceptive cues relevant to energy status (e.g., neurohormonal signals such as leptin) to modulate stimulus-driven food procurement and consumption. This type of hippocampal-dependent modulatory control of feeding behavior is compromised by consumption of foods common to Western diets, including saturated fats and simple carbohydrates. The development of more effective treatments for obesity will benefit from a more complete understanding of the complex interaction between dietary, environmental, cognitive, and neurophysiological mechanisms contributing to excessive food intake. PMID:22266286

  11. An in-vitro Evaluation of canal transportation and centering ability of two rotary Nickel Titanium systems (Twisted Files and Hyflex files) with conventional stainless Steel hand K-flexofiles by using Spiral Computed Tomography

    PubMed Central

    Kumar, B Shiva; Pattanshetty, Spoorti; Prasad, Manju; Soni, Sunny; Pattanshetty, Kirti S; Prasad, Shiva

    2013-01-01

    Background: The purpose of this in-vitro study was to compare canal transportation and centering ability of Twisted and Hyflex Rotary Files with stainless steel hand k-flexofiles by using Spiral Computed Tomography. Materials & Methods: A total of 90 freshly extracted human mandibular single rooted Premolar teeth were selected. The crowns were flattened with steel disks and a final dimension of 18-mm WL was achieved for each tooth. Canals were divided randomly into 3 groups of 30 teeth each. Group I:Hyflex files, Group II:Twisted files, Group III:stainless steel hand k-flexofiles. Three sections from apical, mid-root, and coronal levels of the canal were recorded. All the teeth were scanned before and after instrumentation by using Spiral Computed Tomography. Results: K-files showed highest transportation and less centered when compared to the Twisted and Hyflex rotary files. No significant difference was found between TF and Hyflex CM instruments. Conclusion: TF and Hyflex files shaped curved root canals without significant shaping errors when compared to the Hand stainless steel k-flexofiles. How to cite this article: Kumar BS, Pattanshetty S, Prasad M, Soni S, Pattanshetty KS, Prasad S. An in-vitro Evaluation of canal transportation and centering ability of two rotary Nickel Titanium systems (Twisted Files and Hyflex files) with conventional stainless Steel hand K-flexofiles by using Spiral Computed Tomography. J Int Oral Health 2013;5(5):108-15. PMID:24324313

  12. 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.

  13. 76 FR 5799 - Prairie Power, Inc.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-02

    ... Energy Regulatory Commission Prairie Power, Inc.; Notice of Filing January 26, 2011. Take notice that on January 25, 2011, Prairie Power, Inc., submitted a proposed revenue requirement filing under Midwest Independent Transmission System Operator, Inc. (Midwest ISO) Schedule 2, for reactive supply and...

  14. 78 FR 77116 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-20

    ..., Inc. Description: Southwest Power Pool, Inc. submits tariff filing per 35.13(a)(2)(iii: KCPL and GMO... under Section 204 of the Federal Power Act and Part 34 of the Commission's Regulations. Filed Date: 12... the Commission's eLibrary system by clicking on the links or querying the docket number. Any...

  15. 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…

  16. 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…

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

    PubMed Central

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

    2014-01-01

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

  18. 36 CFR 1202.92 - What NARA systems of records are exempt from release under the Law Enforcement Exemption of the...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... are exempt from release under the Law Enforcement Exemption of the Privacy Act? 1202.92 Section 1202... REGULATIONS IMPLEMENTING THE PRIVACY ACT OF 1974 Exemptions § 1202.92 What NARA systems of records are exempt from release under the Law Enforcement Exemption of the Privacy Act? (a) The Investigative Files of...

  19. A personal computer program to transfer documents from the automated office system to MultiMate disk files

    SciTech Connect

    Kern, J.N.

    1989-01-27

    A program, WPS to MultiMate file transfer (WPSMM), was developed to collect text from the WPS-Plus editor of the automated office system (AOS), interpret it into an ASCII text stream, translate it to a MultiMate DOC file format, then write it out to a personal computer disk drive. The program communicates with AOS using the serial port of the computer at the baud rate and other parameters specified when the program began. This program provides a simple way to create a MultiMate document from a document in the AOS editor, WPS-Plus. 1 ref.

  20. 76 FR 2681 - Amended Environmental Impact Statement Filing System Guidance for Implementing 40 CFR 1506.9 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-14

    ... 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 and 1506.10 of the Council on Environmental Quality's Regulations Implementing the National Environmental Policy Act 1. Introduction On October 7,...

  1. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

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

  2. 14 CFR 406.113 - Filing documents with the Docket Management System (DMS) and sending documents to the...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

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

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

    PubMed Central

    Hasheminia, Seyed Mohsen

    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 (? = 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. PMID:24159390

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

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Filing documents with the Docket Management System (DMS) and sending documents to the administrative law judge and Assistant Chief Counsel for Litigation. 406.113 Section 406.113 Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT...

  5. 77 FR 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...

  6. 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.

  7. Multistable systems under the influence of noise

    NASA Astrophysics Data System (ADS)

    Kraut, Suso

    2002-04-01

    Nonlinear multistable systems under the influence of noise exhibit a plethora of interesting dynamical properties. A medium noise level causes hopping between the metastable states. This attractorhopping process is characterized through laminar motion in the vicinity of the attractors and erratic motion taking place on chaotic saddles, which are embedded in the fractal basin boundary. This leads to noise-induced chaos. The investigation of the dissipative standard map showed the phenomenon of preference of attractors through the noise. It means, that some attractors get a larger probability of occurrence than in the noisefree system. For a certain noise level this prefernce achieves a maximum. Other attractors are occur less often. For sufficiently high noise they are completely extinguished. The complexity of the hopping process is examined for a model of two coupled logistic maps employing symbolic dynamics. With the variation of a parameter the topological entropy, which is used together with the Shannon entropy as a measure of complexity, rises sharply at a certain value. This increase is explained by a novel saddle merging bifurcation, which is mediated by a snapback repellor. Scaling laws of the average time spend on one of the formerly disconnected parts and of the fractal dimension of the connected saddle describe this bifurcation in more detail. If a chaotic saddle is embedded in the open neighborhood of the basin of attraction of a metastable state, the required escape energy is lowered. This enhancement of noise-induced escape is demonstrated for the Ikeda map, which models a laser system with time-delayed feedback. The result is gained using the theory of quasipotentials. This effect, as well as the two scaling laws for the saddle merging bifurcation, are of experimental relevance. Nichtlineare multistabile Systeme unter dem Einfluss von Rauschen weisen vielschichtige dynamische Eigenschaften auf. Ein mittleres Rauschlevel zeitigt ein Springen zwischen den metastabilen Zustaenden. Dieser “attractor-hopping” Prozess ist gekennzeichnet durch laminare Bewegung in der Naehe von Attraktoren und erratische Bewegung, die sich auf chaotischen Satteln abspielt, welche in die fraktalen Einzugsgebietsgrenzen eingebettet sind. Er hat rauschinduziertes Chaos zur Folge. Bei der Untersuchung der dissipativen Standardabbildung wurde das Phaenomen der Praeferenz von Attraktoren durch die Wirkung des Rauschens gefunden. Dies bedeutet, dass einige Attraktoren eine groessere Wahrscheinlichkeit erhalten aufzutreten, als dies fuer das rauschfreie System der Fall waere. Bei einer bestimmten Rauschstaerke ist diese Bevorzugung maximal. Andere Attraktoren werden aufgrund des Rauschens weniger oft angelaufen. Bei einer entsprechend hohen Rauschstaerke werden sie komplett ausgeloescht. Die Komplexitaet des Sprungprozesses wird fuer das Modell zweier gekoppelter logistischer Abbildungen mit symbolischer Dynamik untersucht. Bei Variation eines Parameters steigt an einem bestimmten Wert des Parameters die topologische Entropie steil an, die neben der Shannon Entropie als Komplexitaetsmass verwendet wird. Dieser Anstieg wird auf eine neuartige Bifurkation von chaotischen Satteln zurueckgefuehrt, die in einem Verschmelzen zweier Sattel besteht und durch einen “Snap-back”-Repellor vermittelt wird. Skalierungsgesetze sowohl der Verweilzeit auf einem der zuvor getrennten Teile des Sattels als auch des Wachsens der fraktalen Dimension des entstandenen Sattels beschreiben diese neuartige Bifurkation genauer. Wenn ein chaotischer Sattel eingebettet in der offenen Umgebung eines Einzugsgebietes eines metastabilen Zustandes liegt, fuehrt das zu einer deutlichen Senkung der Schwelle des rauschinduzierten Tunnelns. Dies wird anhand der Ikeda-Abbildung, die ein Lasersystem mit einer zeitverzoegerden Interferenz beschreibt, demonstriert. Dieses Resultat wird unter Verwendung der Theorie der Quasipotentiale erzielt. Sowohl dieser Effekt, die Senkung der Schwelle für rauschinduziertes Tunneln aus einem metastabilen Zustand durch einen chaotischen Sattel, als auch die beiden Skalierungsgesteze sind von experimenteller Relevanz.

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

    PubMed Central

    Dhingra, Annil; Miglani, Anjali

    2015-01-01

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

  9. 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...

  10. 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...

  11. 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.

  12. 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.

  13. 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.

  14. CROP PRODUCTION COMPARISON UNDER VARIOUS IRRIGATION SYSTEMS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Studies on crop productivity for major irrigated crops in the Great Plains were reviewed for different types of modern pressurized irrigation systems. Crops included corn, cotton, grain sorghum, winter wheat, and preliminary data on soybean and sunflower. Irrigation systems consisted of spray and lo...

  15. Ecological and genetic systems underlying sustainable horticulture

    Technology Transfer Automated Retrieval System (TEKTRAN)

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

  16. RSX system development under VAX/VMS compatibility mode

    NASA Astrophysics Data System (ADS)

    Fuka, M. A.

    The Control System for the Proton Storage Ring now being built at Los Alamos will use a VAX-11/750 as its main control computer with several LSI-11/23 microprocessors reading and controlling the hardware. The VMS Compatibility Mode makes it possible to use the VAX as a development system for the LSI-11/23 microprocessors running the RSX-11S (stand-alone) operating system. Digital Equipment Corporation (DEC)-supplied software is used to generate the RSX-11S operating system and DECNET-11S network software. We use the VMS editors to create source files, the Macro-11 assembler and the PDP-11 FORTRAN-77 compiler to generate object code, and the RSX Task Builder to link the executable RSX task image. The RSX task then can be tested to some extent on the VAX before it is down-line loaded to the LST-11/23 for further testing.

  17. RSX system development under VAX/VMS compatibility mode

    SciTech Connect

    Fuka, M.A.

    1983-01-01

    The Control System for the Proton Storage Ring now being built at Los Alamos will use a VAX-11/750 as its main control computer with several LSI-11/23 microprocessors reading and controlling the hardware. The VMS Compatibility Mode makes it possible to use the VAX as a development system for the LSI-11/23 microprocessors running the RSX-11S (stand-alone) operating system. Digital Equipment Corporation (DEC)-supplied software is used to generate the RSX-11S operating system and DECNET-11S network software. We use the VMS editors to create source files, the Macro-11 assembler and the PDP-11 Fortran-77 compiler to generate object code, and the RSX Task Builder to link the executable RSX task image. The RSX task then can be tested to some extent on the VAX before it is down-line loaded to the LSI-11/23 for further testing.

  18. 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.

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

    PubMed Central

    Altunbas, Demet; Kutuk, Betul; Kustarci, Alper

    2015-01-01

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

  20. XML Files

    MedlinePLUS

    ... nlm.nih.gov/medlineplus/xml.html MedlinePlus XML Files To use the sharing features on this page, ... information on all English and Spanish topic groups. Files generated on April 01, 2016 MedlinePlus Health Topic ...

  1. Rhythmic biological systems under ?g conditions

    NASA Astrophysics Data System (ADS)

    Johnsson, A.; Eidesmo, T.

    Rhythmic phenomena in biology cover a wide frequency spectrum. In Space, the rhythms will encounter microgravity conditions - ?g - 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. ?g 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 ?g-conditions will be discussed in a specific case, viz. the gravitropical system of plants which can show sustained oscillations.

  2. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., are part of the EMFS. The records maintained in the EMFS are part of a Governmentwide Privacy Act... employee are not required to be included as a record within the EMFS, under certain conditions to be..., may be included in the system. (b) Agencies must provide employees access to their own EMFS...

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

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., are part of the EMFS. The records maintained in the EMFS are part of a Governmentwide Privacy Act... employee are not required to be included as a record within the EMFS, under certain conditions to be..., may be included in the system. (b) Agencies must provide employees access to their own EMFS...

  4. 5 CFR 293.504 - Composition of, and access to, the Employee Medical File System.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., are part of the EMFS. The records maintained in the EMFS are part of a Governmentwide Privacy Act... employee are not required to be included as a record within the EMFS, under certain conditions to be..., may be included in the system. (b) Agencies must provide employees access to their own EMFS...

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

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., are part of the EMFS. The records maintained in the EMFS are part of a Governmentwide Privacy Act... employee are not required to be included as a record within the EMFS, under certain conditions to be..., may be included in the system. (b) Agencies must provide employees access to their own EMFS...

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

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ..., are part of the EMFS. The records maintained in the EMFS are part of a Governmentwide Privacy Act... employee are not required to be included as a record within the EMFS, under certain conditions to be..., may be included in the system. (b) Agencies must provide employees access to their own EMFS...

  7. 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.

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

    PubMed

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

    2006-01-01

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

  9. 40 CFR 78.4 - Filings.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 16 2011-07-01 2011-07-01 false Filings. 78.4 Section 78.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPEAL PROCEDURES § 78.4 Filings. (a) All original filings made under this part shall be signed by the person making the filing or by an attorney or...

  10. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

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

  11. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

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

  12. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

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

  13. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

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

  14. 20 CFR 30.10 - Are all OWCP records relating to claims filed under EEOICPA considered confidential?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

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

  15. 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.

  16. Distributed File System Utilities to Manage Large DatasetsVersion 0.5

    Energy Science and Technology Software Center (ESTSC)

    2014-05-21

    FileUtils provides a suite of tools to manage large datasets typically created by large parallel MPI applications. They are written in C and use standard POSIX I/Ocalls. The current suite consists of tools to copy, compare, remove, and list. The tools provide dramatic speedup over existing Linux tools, which often run as a single process.

  17. 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.

  18. 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.

  19. 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. PMID:15562270

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

    SciTech Connect

    Not Available

    1992-05-01

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

  1. Consolidated list of chemical subject to reporting under the Emergency Planning and Community Right-to-Know Act: SARA Section 302 extremely hazardous substances, CERCLA hazardous substances and SARA Section 313 toxic chemicals (Title III, list of lists) (for microcomputers). Data file

    SciTech Connect

    Not Available

    1991-01-01

    This is the disk based version of the Office of Toxic Substances Consolidated list of chemicals subject to reporting under Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA) 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.

  2. 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

    ... framework (ASF) adopted by the Board (74 FR 1170-1173, 1/12/09 (correction 74 FR 3987, 1/22/09); 75 FR 71069... Foreign-Trade Zones Board Proposed Foreign-Trade Zone--West Tennessee Area Under Alternative Site...) by the Northwest Tennessee Regional Port Authority to establish a general-purpose foreign-trade...

  3. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... information. A single notice covering multiple titles need bear only a single certification. (5)...

  4. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... information. A single notice covering multiple titles need bear only a single certification. (5)...

  5. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... information. A single notice covering multiple titles need bear only a single certification. (5)...

  6. 37 CFR 201.34 - Procedures for filing Correction Notices of Intent to Enforce a Copyright Restored under the...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... (3) Restored work. For the definition of works restored under the URAA, see 37 CFR 201.33. (c) Forms... prescribed in § 201.3(c). (2) Method of payment. See 37 CFR 201.33(e)(1),(2). (f) Public online access... information. A single notice covering multiple titles need bear only a single certification. (5)...

  7. 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.

  8. The coroner's system and under-reporting of suicide.

    PubMed

    Cooper, P N; Milroy, C M

    1995-10-01

    This study investigates the under-reporting of suicide with particular reference to differences between sex and age groups and the various modes of suicide. The study was performed retrospectively using the files of H M Coroner for South Yorkshire (West) over the years 1985 to 1991. There were 536 deaths judged on the balance of probability to be suicidal in nature. Only 60 per cent of these deaths received a suicide verdict and would therefore register in official suicide statistics. A significantly smaller proportion of females (51.7 per cent) received a suicide verdict than males (64.5 per cent). Of the young females (< 45) 61.7 per cent were given a suicide verdict compared to 46.6 per cent of older females (45+). These differences are explained by different preferences for mode of suicide, in particular for poisoning using solids or liquids. Only 40 per cent of cases within this category received a suicide verdict. Drowning showed an even smaller percentage (24 per cent). Self-immolation (42 per cent) and jumping from a height (51 per cent) were also under-represented. Of these, self-poisoning, drowning and jumping from a height were relatively popular among females. In contrast, common causes of death favoured predominantly by males--hanging and carbon monoxide poisoning--received a high percentage of suicide verdicts (81 per cent and 90 per cent). Thus official suicide statistics produce a distorted view of the suicide population with relative under-reporting of females, particularly older females, and marked under-reporting of some causes of death, notably poisoning using solids or liquids, drowning, self-immolation and jumping from a height. PMID:7500856

  9. 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.

  10. Efficient algorithms for multi-file caching

    SciTech Connect

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

    2004-03-15

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

  11. 77 FR 47061 - Northern Illinois Municipal Power Agency; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-07

    ... Energy Regulatory Commission Northern Illinois Municipal Power Agency; Notice of Filing Take notice that on July 30, 2012, Northern Illinois Municipal Power Agency filed a Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission System Operator, Inc. Tariff Schedule 2....

  12. 75 FR 53286 - Combined Notice of Filings No. 2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-31

    ... filing per 154.203: Errata Compliance to be effective 7/12/2010 under RP10-960 Filing Type: 580. Filed... Company submits tariff filing per 154.203: Errata compliance to be effective 7/12/2010. Filed Date:...

  13. 12 CFR 303.221 - Filing procedures.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 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...

  14. 17 CFR 230.493 - Additional Schedule B disclosure and filing requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Data Gathering and Retrieval System (EDGAR) unless it has obtained a hardship exemption under § 232.201... contains reports and other information regarding issuers that file electronically with the Commission;...

  15. Terminology Extraction from Log Files

    NASA Astrophysics Data System (ADS)

    Saneifar, Hassan; Bonniol, Stéphane; Laurent, Anne; Poncelet, Pascal; Roche, Mathieu

    The log files generated by digital systems can be used in management information systems as the source of important information on the condition of systems. However, log files are not exhaustively exploited in order to extract information. The classical methods of information extraction such as terminology extraction methods are irrelevant to this context because of the specific characteristics of log files like their heterogeneous structure, the special vocabulary and the fact that they do not respect a natural language grammar. In this paper, we introduce our approach Exterlog to extract the terminology from log files. We detail how it deals with the particularity of such textual data.

  16. 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…

  17. 12 CFR 622.18 - Filing.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

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

  18. 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). PMID:18358898

  19. 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. PMID:25034968

  20. 48 CFR 204.802 - Contract files.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Contract files. 204.802 Section 204.802 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE GENERAL ADMINISTRATIVE MATTERS Contract Files 204.802 Contract files. Official...

  1. Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O

    SciTech Connect

    Moody, A; Bronevetsky, G

    2008-05-20

    The growth in the computational capability of modern supercomputing systems has been accompanied by corresponding increases in CPU count, total RAM, and total storage capacity. Indeed, systems such as Blue-Gene/L [3], BlueGene/P, Ranger, and the Cray XT series have grown to more than 100k processors, with 100 TeraBytes of RAM and are attached to multi-PetaByte storage systems. However, as part of this design evolution, large supercomputers have lost node-local storage elements, such as disks. While this decision was motivated by important considerations like overall system reliability, it also resulted in these systems losing a key level in their memory hierarchy, with nothing to fill the gap between local RAM and the parallel file system. While today's large supercomputers are typically attached to fast parallel file systems, which provide tens of GBs/s of I/O bandwidth, the computational capacity has grown much faster than the storage bandwidth capacity. As such, these machines are now provided with much less than 1GB/s of I/O bandwidth per TeraFlop of compute power, which is below the generally accepted limit required for a well-balanced system [8] [16]. The result is that today's limited I/O bandwidth is choking the capabilities of modern supercomputers, specifically in terms of limiting their working sets and making fault tolerance techniques, such as checkpointing, prohibitively expensive. This paper presents an alternative system design oriented on using node-local storage to improve aggregate system I/O bandwidth. We focus on the checkpointing use-case and present an experimental evaluation of SCR, a new checkpointing library that makes use of node-local storage to significantly improve the performance of checkpointing on large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching 700GB/s on 8,752 processors. Our results scale such that we expect a similarly structured system consisting of 12,500 processors to achieve aggregate I/O bandwidth of 1 TB/s.

  2. Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O

    SciTech Connect

    Bronevetsky, G; Moody, A

    2009-08-18

    In the race to PetaFLOP-speed supercomputing systems, the increase in computational capability has been accompanied by corresponding increases in CPU count, total RAM, and storage capacity. However, a proportional increase in storage bandwidth has lagged behind. In order to improve system reliability and to reduce maintenance effort for modern large-scale systems, system designers have opted to remove node-local storage from the compute nodes. Today's multi-TeraFLOP supercomputers are typically attached to parallel file systems that provide only tens of GBs/s of I/O bandwidth. As a result, such machines have access to much less than 1GB/s of I/O bandwidth per TeraFLOP of compute power, which is below the generally accepted limit required for a well-balanced system. In a many ways, the current I/O bottleneck limits the capabilities of modern supercomputers, specifically in terms of limiting their working sets and restricting fault tolerance techniques, which become critical on systems consisting of tens of thousands of components. This paper resolves the dilemma between high performance and high reliability by presenting an alternative system design which makes use of node-local storage to improve aggregate system I/O bandwidth. In this work, we focus on the checkpointing use-case and present an experimental evaluation of the Scalable Checkpoint/Restart (SCR) library, a new adaptive checkpointing library that uses node-local storage to significantly improve the checkpointing performance of large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching a measured 700GB/s of aggregate bandwidth on 8,752 processors and an estimated 1TB/s for a similarly structured machine of 12,500 processors. This corresponds to a speedup of over 70x compared to the bandwidth provided by the 10GB/s parallel file system the cluster uses. Further, SCR can adapt to an environment in which there is wide variation in performance or capacity among the individual node-local storage elements.

  3. 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 results, the proposed dynamic model has the potential to be used to provide motion data to drive a detailed finite element model of a supine human for further investigation of muscle forces and joint dynamics. The predicted kinematics of the supine human and transport system would also benefit patient safety planners and vibration suppression designers in their endeavors. PMID:23699722

  4. 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.

  5. 32 CFR 842.103 - Filing a claim.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 6 2011-07-01 2011-07-01 false Filing a claim. 842.103 Section 842.103 National... CLAIMS Claims Under the National Guard Claims Act (32 U.S.C. 715) § 842.103 Filing a claim. This paragraph explains how to file a claim under the National Guard Claims Act. (a) How and when filed. A...

  6. 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...

  7. 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...

  8. 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...

  9. 75 FR 68340 - Combined Notice of Filings # 1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-05

    ... Concurrence and Compliance Filing, to be effective 7/29/2010. Filed Date: 10/28/2010. Accession Number... 35: Compliance Filing to be effective 7/29/2010. Filed Date: 10/28/2010. Accession Number: 20101028... Transmission System Operator, Inc. submits tariff filing per 35.17(b): 10-28-10 Amendment to be effective...

  10. A loading system for creep testing under constant compressive stress

    NASA Technical Reports Server (NTRS)

    Dobes, F.; Zverina, O.; Cadek, J.

    1987-01-01

    A critical analysis is made of layouts assuring constant stress under creep, pointing out the difficulties of using these layouts for compressive testing. A new mechanical system to maintain stress during creep testing is proposed. Constant stress is achieved by a definite motion of the load. The proposed system can be used in tensile or compressive testing. Practical measurements reveal that the stress constancy error is not greater than plus or minus 1.5 percent up to relative deformation of 30 percent.

  11. 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)

  12. 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

  13. 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

  14. "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…

  15. "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…

  16. 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.

  17. 48 CFR 6101.2 - Filing cases; time limits for filing; notice of docketing; consolidation [Rule 2].

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 7 2013-10-01 2012-10-01 true Filing cases; time limits... Filing cases; time limits for filing; notice of docketing; consolidation . (a) Filing cases. Filing of a... machine number, and e-mail address, if available, of the contracting officer whose decision is...

  18. 48 CFR 6101.2 - Filing cases; time limits for filing; notice of docketing; consolidation [Rule 2].

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 7 2014-10-01 2014-10-01 false Filing cases; time limits... Filing cases; time limits for filing; notice of docketing; consolidation . (a) Filing cases. Filing of a... machine number, and e-mail address, if available, of the contracting officer whose decision is...

  19. 48 CFR 6101.2 - Filing cases; time limits for filing; notice of docketing; consolidation [Rule 2].

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 7 2012-10-01 2012-10-01 false Filing cases; time limits... Filing cases; time limits for filing; notice of docketing; consolidation . (a) Filing cases. Filing of a... machine number, and e-mail address, if available, of the contracting officer whose decision is...

  20. 48 CFR 6101.2 - Filing cases; time limits for filing; notice of docketing; consolidation [Rule 2].

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Filing cases; time limits... Filing cases; time limits for filing; notice of docketing; consolidation . (a) Filing cases. Filing of a...; and (F) An estimate of the amount of money in controversy, if any and if known. (iii) The...

  1. 48 CFR 6101.2 - Filing cases; time limits for filing; notice of docketing; consolidation [Rule 2].

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 7 2011-10-01 2011-10-01 false Filing cases; time limits... Filing cases; time limits for filing; notice of docketing; consolidation . (a) Filing cases. Filing of a... giving rise to the appeal; and (F) An estimate of the amount of money in controversy, if any and if...

  2. 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...

  3. 40 CFR 78.4 - Filings.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 16 2010-07-01 2010-07-01 false Filings. 78.4 Section 78.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPEAL PROCEDURES § 78.4 Filings. (a) All original filings made under this part shall be signed by the person making...

  4. 18 CFR 34.7 - Filing requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT APPLICATION FOR AUTHORIZATION OF THE ISSUANCE OF SECURITIES OR THE ASSUMPTION OF LIABILITIES § 34.7 Filing requirements. Applications must be filed with the Secretary of the Commission in accordance with filing procedures posted on the Commission's Web site at...

  5. 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...

  6. 47 CFR 1.1405 - File numbers.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 1 2011-10-01 2011-10-01 false File numbers. 1.1405 Section 1.1405... Procedures § 1.1405 File numbers. Each complaint which appears to be essentially complete under § 1.1404 will be accepted and assigned a file number. Such assignment is for administrative purposes only and...

  7. 11 CFR 9006.2 - Filing dates.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... REPORTS AND RECORDKEEPING § 9006.2 Filing dates. The reports required to be filed under 11 CFR 9006.1 shall be filed during an election year on a monthly or quarterly basis as prescribed at 11 CFR 104.5(b... reports either on a monthly or quarterly basis in accordance with 11 CFR 104.5(b)(2)....

  8. 11 CFR 9006.2 - Filing dates.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... REPORTS AND RECORDKEEPING § 9006.2 Filing dates. The reports required to be filed under 11 CFR 9006.1 shall be filed during an election year on a monthly or quarterly basis as prescribed at 11 CFR 104.5(b... reports either on a monthly or quarterly basis in accordance with 11 CFR 104.5(b)(2)....

  9. Generic file format

    NASA Astrophysics Data System (ADS)

    Felgate, Nick

    2002-11-01

    The Generic File Format (GFF) is a file format developed within the UK ASW community for the interchange and storage of underwater sonar data. Originally developed for the interchange of time-series data between analysis systems, it has been extended to provide for storage of processed acoustic data (e.g., power and DEMON spectrum, lofargram grey-scale), nonacoustic data (e.g., own-ship dynamics, sensor configuration) and event data (e.g., tracker output, sonar intercepts). The format employs the chunk concept, as used in the WAV and AIFF file formats, to provide extendability (including local variants) while providing a measure of backward compatability. However, the basic concept has been adapted to allow for the mixing in the one file of multiple channels of different sample-rates and data-types through the inclusion of a data frame concept and multiple data blocks. Chunk cross-referencing has been employed to ensure data consistency. A provision is made in the header of the file to store details of the sensor and processing for the data (e.g., the number of hydrophones, beam direction, FFT size) so that an analysis system does not need to know about the sensor or other system from which the data originated.

  10. 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.

  11. 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.

  12. Monetizing Benefits Under Alternative River Recreation Use Allocation Systems

    NASA Astrophysics Data System (ADS)

    Loomis, John B.

    1980-02-01

    An optimal capacity, when the binding use constraint is ecological damage, and monetization of recreational benefits, under alternative means of rationing that capacity, were conceptually and empirically developed. The model was developed by first estimating the demand to float Westwater Canyon, derived from a modified travel cost model. Recreational benefits of 6,500 under a hypothetical capacity of 50 trips, when pricing was used to allocate the permits, and a range of benefits from as low as 880 to an expected value of $3,690, if a lottery system is used, were estimated using this model. The monetization of the efficiency losses associated with more equitable allocation systems allows managers to be more objective in making the equity-efficiency trade-offs involved in picking a recreation use allocation system.

  13. Neural systems underlying approach and avoidance in anxiety disorders

    PubMed Central

    Robin L., Aupperle; Martin, P. Paulus

    2010-01-01

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

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

    NASA Astrophysics Data System (ADS)

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

    2014-03-01

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

  15. Reimbursement of sole community hospitals under Medicare's prospective payment System

    PubMed Central

    Freiman, Marc P.; Cromwell, Jerry

    1987-01-01

    Under the prospective payment system (PPS), designated sole community hospitals (SCH's), usually smaller than other rural hospitals but offering comparable services, have had higher average cost levels, in part because of underutilization of plant and equipment. This has resulted in negative operating margins on patient revenues, although local financial support and other revenue sources bring margins on total revenues into the positive range. The PPS legislation has also provided SCH's temporary protection from volume declines. SCH's are more likely than other rural hospitals to experience large volume swings, but only for declines greater than the threshold specified under PPS. PMID:10312392

  16. 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)

  17. 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)

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

    PubMed

    Çapar, ?smail 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. PMID:25285423

  19. 78 FR 66929 - Information Collection Being Reviewed by the Federal Communications Commission Under Delegated...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-07

    ... security filings and petitions will not be made routinely available for public inspection. Section 107(c... this proceeding were required to file system security statements under the Commission's rules. (Security systems are currently approved under the existing OMB 3060-0809 information collection). (b)...

  20. 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.

  1. 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...

  2. 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.

  3. 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...

  4. Comparative Analysis of Canal Centering Ability of Different Single File Systems Using Cone Beam Computed Tomography- An In-Vitro Study

    PubMed Central

    Agarwal, Jatin; Jain, Pradeep; Chandra, Anil

    2015-01-01

    Background The ability of an endodontic instrument to remain centered in the root canal system is one of the most important characteristic influencing the clinical performance of a particular file system. Thus, it is important to assess the canal centering ability of newly introduced single file systems before they can be considered a viable replacement of full-sequence rotary file systems. Aim The aim of the study was to compare the canal transportation, centering ability, and time taken for preparation of curved root canals after instrumentation with single file systems One Shape and Wave One, using cone-beam computed tomography (CBCT). Materials and Methods Sixty mesiobuccal canals of mandibular molars with an angle of curvature ranging from 20o to 35o were divided into three groups of 20 samples each: ProTaper PT (group I) – full-sequence rotary control group, OneShape OS (group II)- single file continuous rotation, WaveOne WO – single file reciprocal motion (group III). Pre instrumentation and post instrumentation three-dimensional CBCT images were obtained from root cross-sections at 3mm, 6mm and 9mm from the apex. Scanned images were then accessed to determine canal transportation and centering ability. The data collected were evaluated using one-way analysis of variance (ANOVA) with Tukey’s honestly significant difference test. Results It was observed that there were no differences in the magnitude of transportation between the rotary instruments (p >0.05) at both 3mm as well as 6mm from the apex. At 9 mm from the apex, Group I PT showed significantly higher mean canal transportation and lower centering ability (0.19±0.08 and 0.39±0.16), as compared to Group II OS (0.12±0.07 and 0.54±0.24) and Group III WO (0.13±0.06 and 0.55±0.18) while the differences between OS and WO were not statistically significant Conclusion It was concluded that there was minor difference between the tested groups. Single file systems demonstrated average canal transportation and centering ability comparable to full sequence Protaper system in curved root canals. PMID:26155551

  5. 77 FR 15026 - Privacy Act of 1974; Farm Records File (Automated) System of Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ... Act (5 U.S.C. 552a) system of records to collect and manage information about the majority of... enhance the marketing of agricultural products. The system of records covers information regarding farm... corrections throughout the system of records notice to update and better reflect the information in the...

  6. 77 FR 62226 - Privacy Act of 1974; System of Records-Principal Investigator/Application File and Associated...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... credentials, current and pending support from other grant programs, research applications submitted to... grant programs, research applications submitted to Institute competitions and the peer reviews (summary... SYSTEM: The Institute's programs for funding research are authorized under the Education Sciences...

  7. Viewing Files

    Cancer.gov

    In addition to standard HTML Web pages, our Web sites sometimes contain other file formats. You may need additional software or browser plug-ins to view some of the information available on our sites. The following lists show each format, along with links

  8. 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.

  9. FILE ORGANIZATION AND SEARCH STRATEGY USING THE UNIVERSAL DECIMAL CLASSIFICATION IN MECHANIZED REFERENCE RETRIEVAL SYSTEMS.

    ERIC Educational Resources Information Center

    ATHERTON, PAULINE; FREEMAN, ROBERT R.

    STARTING FROM A MODEL OF CONTEMPORARY MECHANIZED RETRIEVAL SYSTEMS AND THE CHARACTERISTICS OF INDEXING LANGUAGES USED THEREIN, THE AUTHORS DEVELOP A RATIONAL BASIS FOR USE OF THE UNIVERSAL DECIMAL CLASSIFICATION (UDC) IN THIS CONTEXT. PRACTICAL DESIGN CONSIDERATIONS FOR THE USE OF UDC IN A MECHANIZED RETRIEVAL SYSTEM ARE DISCUSSED. EXAMPLES ARE…

  10. 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

    ... 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 Deadlines..., and will be open for the public to attend. \\1\\ Midwest Independent Transmission System Operator,...

  11. 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...) submitted a request for a limited waiver of Appendix Y of the California Independent System Operator...

  12. "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 agricultural…

  13. "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 agricultural…

  14. Compress Your Files

    ERIC Educational Resources Information Center

    Branzburg, Jeffrey

    2005-01-01

    File compression enables data to be squeezed together, greatly reducing file size. Why would someone want to do this? Reducing file size enables the sending and receiving of files over the Internet more quickly, the ability to store more files on the hard drive, and the ability pack many related files into one archive (for example, all files…

  15. File Management In Space

    NASA Technical Reports Server (NTRS)

    Critchfield, Anna R.; Zepp, Robert H.

    2000-01-01

    We propose that the user interact with the spacecraft as if the spacecraft were a file server, so that the user can select and receive data as files in standard formats (e.g., tables or images, such as jpeg) via the Internet. Internet technology will be used end-to-end from the spacecraft to authorized users, such as the flight operation team, and project scientists. The proposed solution includes a ground system and spacecraft architecture, mission operations scenarios, and an implementation roadmap showing migration from current practice to the future, where distributed users request and receive files of spacecraft data from archives or spacecraft with equal ease. This solution will provide ground support personnel and scientists easy, direct, secure access to their authorized data without cumbersome processing, and can be extended to support autonomous communications with the spacecraft.

  16. 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.

  17. 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.

  18. 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.

  19. The use of bacillary tuberculosis information system central files for special-purpose data search.

    PubMed

    Kaustová, J; Mikesková, H; Kubín, M; Svandová, E

    1986-01-01

    The automated information system for surveillance of bacillary tuberculosis (ISBT) was put into operation in 1981, with the objective to record, store and process all mycobacterial positivity data reported by the network of specialized mycobacteriological laboratories in the Czech socialist republic. Here are described the newly developed data processing programs which allow it to carry out some special-purpose searches for the stored epidemiological data important for surveillance of tuberculosis. Further improvement of the national system of tuberculosis surveillance is believed to lie in the future compatibility of the two computerized systems operating at present in Czechoslovakia, i.e. ISBT and the Register of Tuberculosis. PMID:3772092

  20. 10 CFR 205.308 - Filing schedule and annual reports.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ....308 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Electric Power System... associated with each category. (Approved by the Office of Management and Budget under Control No. 1901-0245) ... to Transmit Electric Energy to A Foreign Country § 205.308 Filing schedule and annual reports....

  1. 10 CFR 205.308 - Filing schedule and annual reports.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ....308 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Electric Power System... associated with each category. (Approved by the Office of Management and Budget under Control No. 1901-0245) ... to Transmit Electric Energy to A Foreign Country § 205.308 Filing schedule and annual reports....

  2. 10 CFR 205.308 - Filing schedule and annual reports.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ....308 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Electric Power System... associated with each category. (Approved by the Office of Management and Budget under Control No. 1901-0245) ... to Transmit Electric Energy to A Foreign Country § 205.308 Filing schedule and annual reports....

  3. 10 CFR 205.308 - Filing schedule and annual reports.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ....308 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Electric Power System... associated with each category. (Approved by the Office of Management and Budget under Control No. 1901-0245) ... to Transmit Electric Energy to A Foreign Country § 205.308 Filing schedule and annual reports....

  4. 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...

  5. Proposed water quality guidance for the Great Lakes system (for microcomputers). Data file

    SciTech Connect

    Not Available

    1993-03-31

    The document contained on the diskette provides opportunity for comment on the proposed Water Quality Guidance for the Great Lakes System. The Guidance, once established, will establish minimum water quality standards, antidegradation policies, and implementation procedures for waters within the Great Lakes System in the states of New York, Pennsylvania, Ohio, Indiana, Illinois, Minnesota, Wisconsin, and Michigan, including the waters within the jurisdiction of Indian Tribes.

  6. Inverted File Compression through Document Identifier Reassignment.

    ERIC Educational Resources Information Center

    Shieh, Wann-Yun; Chen, Tien-Fu; Shann, Jean Jyh-Jiun; Chung, Chung-Ping

    2003-01-01

    Discusses the use of inverted files in information retrieval systems and proposes a document identifier reassignment method to reduce the average gap values in an inverted file. Highlights include the d-gap technique; document similarity; heuristic algorithms; file compression; and performance evaluation from a simulation environment. (LRW)

  7. 77 FR 17469 - Combined Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-26

    ... Applicants: Colorado Interstate Gas Company LLC Description: CIG Non-Conforming Agreement Update Filing to be... necessary to become a party to the proceeding. The filings are accessible in the Commission's eLibrary system by clicking on the links or querying the docket number. eFiling is encouraged. More...

  8. 76 FR 23573 - Combined Notice of Filings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-27

    ... submits tariff filing per 154.204: CIG System Map Update to be effective 6/1/2011. Filed Date: 04/18/2011... . To facilitate electronic service, persons with Internet access who will eFile a document and/or be listed as a contact for an intervenor must create and validate an eRegistration account using the...

  9. 47 CFR 1.1704 - Station files.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 1 2012-10-01 2012-10-01 false Station files. 1.1704 Section 1.1704 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Grants by Random Selection Cable Operations and Licensing System (COALS) § 1.1704 Station files. Applications, notifications, correspondence, electronic filings and...

  10. 10 CFR 1003.51 - What to file.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false What to file. 1003.51 Section 1003.51 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Modification or Rescission § 1003.51 What to file. A person filing under this subpart shall file an “Application...

  11. 10 CFR 1003.32 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.32 Section 1003.32 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Appeals § 1003.32 What to file. A person filing under this subpart shall file an “Appeal of Order” which should be...

  12. 10 CFR 1003.51 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.51 Section 1003.51 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Modification or Rescission § 1003.51 What to file. A person filing under this subpart shall file an “Application...

  13. 10 CFR 1003.41 - What to file.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What to file. 1003.41 Section 1003.41 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Stays § 1003.41 What to file. A person filing under this subpart shall file an “Application for Stay” which should be...

  14. Sustainable infrastructure system modeling under uncertainties and dynamics

    NASA Astrophysics Data System (ADS)

    Huang, Yongxi

    Infrastructure systems support human activities in transportation, communication, water use, and energy supply. The dissertation research focuses on critical transportation infrastructure and renewable energy infrastructure systems. The goal of the research efforts is to improve the sustainability of the infrastructure systems, with an emphasis on economic viability, system reliability and robustness, and environmental impacts. The research efforts in critical transportation infrastructure concern the development of strategic robust resource allocation strategies in an uncertain decision-making environment, considering both uncertain service availability and accessibility. The study explores the performances of different modeling approaches (i.e., deterministic, stochastic programming, and robust optimization) to reflect various risk preferences. The models are evaluated in a case study of Singapore and results demonstrate that stochastic modeling methods in general offers more robust allocation strategies compared to deterministic approaches in achieving high coverage to critical infrastructures under risks. This general modeling framework can be applied to other emergency service applications, such as, locating medical emergency services. The development of renewable energy infrastructure system development aims to answer the following key research questions: (1) is the renewable energy an economically viable solution? (2) what are the energy distribution and infrastructure system requirements to support such energy supply systems in hedging against potential risks? (3) how does the energy system adapt the dynamics from evolving technology and societal needs in the transition into a renewable energy based society? The study of Renewable Energy System Planning with Risk Management incorporates risk management into its strategic planning of the supply chains. The physical design and operational management are integrated as a whole in seeking mitigations against the potential risks caused by feedstock seasonality and demand uncertainty. Facility spatiality, time variation of feedstock yields, and demand uncertainty are integrated into a two-stage stochastic programming (SP) framework. In the study of Transitional Energy System Modeling under Uncertainty, a multistage stochastic dynamic programming is established to optimize the process of building and operating fuel production facilities during the transition. Dynamics due to the evolving technologies and societal changes and uncertainty due to demand fluctuations are the major issues to be addressed.

  15. 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.

  16. Printer-posted maps from a well-data file

    SciTech Connect

    Bailey, D.J.

    1984-04-01

    A series of microcomputer programs have been written to aid the geologist in building a well-data file, selectively retrieving data from the file, and generating posted maps on a printer. The system uses an IBM PC with 64K of memory, one disk drive, and an Epson MX 100 printer. The programs are written in BASICA to run under DOS 1.1. The system has been used to conduct regional geologic studies in the Michigan basin and to make field studies.

  17. 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...

  18. 47 CFR 1.10006 - Is electronic filing mandatory?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false Is electronic filing mandatory? 1.10006 Section... Random Selection International Bureau Filing System § 1.10006 Is electronic filing mandatory? Electronic... International Bureau Filing System (IBFS) form is available. Applications for which an electronic form is...

  19. 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...

  20. 47 CFR 1.10006 - Is electronic filing mandatory?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 1 2013-10-01 2013-10-01 false Is electronic filing mandatory? 1.10006 Section... Random Selection International Bureau Filing System § 1.10006 Is electronic filing mandatory? Electronic... International Bureau Filing System (IBFS) form is available. Applications for which an electronic form is...

  1. 47 CFR 1.10006 - Is electronic filing mandatory?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 1 2012-10-01 2012-10-01 false Is electronic filing mandatory? 1.10006 Section... Random Selection International Bureau Filing System § 1.10006 Is electronic filing mandatory? Electronic... International Bureau Filing System (IBFS) form is available. Applications for which an electronic form is...

  2. 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.

  3. Undercut and fill system for pitching coal. Open file report Aug 79-Jun 81

    SciTech Connect

    Mangolds, A.; Fisk, A.

    1981-06-01

    A study of the technical and economic feasibility of using a unique undercut and fill system developed by Bureau of Mines engineers to mine steeply pitching coal is discussed. The undercut and fill system combines hydraulic coal cutting with unassisted gravity fluming of the coal slurry. Mining occurs across strike and the extended entry is backfilled to provide uniform strata control and an impermeable water and air barrier. Subsequent mining occurs beneath the previously filled stope such that the roof consists of a solid, controlled back.

  4. Using the IPEDS Peer Analysis System in Peer Group Selection. Professional File Number 110, Winter 2008

    ERIC Educational Resources Information Center

    Xu, Juan

    2008-01-01

    Compared to traditional classification methods, developing a peer group using the National Center for Educational Statistics (NCES) Integrated Postsecondary Education Data Systems (IPEDS) data allows institutions to add comparative dimensions, to update the peer group, and to track changes at peer institutions over time. Peer selection and…

  5. 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

    ... (18-11-01), 64 Federal Register (FR) 30159-30161 (June 4, 1999), as corrected by 64 FR 72384, 72407 (December 27, 1999), as corrected by 65 FR 11294-11295 (March 2, 2000), as corrected by 66 FR 18758 (April 11, 2001), as altered by 74 FR 68802-68808 (December 29, 2009). This system of records...

  6. 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 & Quealy, 2006).…

  7. The Spider Assemblage of Olive Groves Under Three Management Systems.

    PubMed

    Cárdenas, Manuel; Pascual, Felipe; Campos, Mercedes; Pekár, Stano

    2015-06-01

    Olives, Olea europaea L., are one of the most important crops in Spain. They are currently produced under three management systems that involve different aspects of soil and pest management, productivity, and crop economy: organic, (integrated pest management-IPM), and conventional. Here, we studied how these systems affect the spiders, the natural enemies of olive grove pests, and performed a detailed analysis of their assemblage. The study was performed during one season in 18 olive groves in Andalusia, Spain, and included both ground-dwelling and canopy species. We found that the organic system supported a significantly higher level of abundance and diversity of canopy spiders than the IPM and conventional systems. Plowing had a negative effect on spider abundance and diversity. However, the presence of hedge vegetation had a positive effect on the spiders. The practices affected the guild structure differently, with some guilds supported by organic and others by IPM. It is suggested that sustainability (in terms of pest control) in olive grove agroecosystems may be obtained by maintaining hedge vegetation regardless of the management system. PMID:26313956

  8. Implementing MPI-IO atomic mode and shared file pointers using MPI one-sided communication.

    SciTech Connect

    Latham, R.; Ross, R.; Thakur, R.; Mathematics and Computer Science

    2007-07-01

    The ROMIO implementation of the MPI-IO standard provides a portable infrastructure for use on top of a variety of underlying storage targets. These targets vary widely in their capabilities, and in some cases additional effort is needed within ROMIO to support all MPI-IO semantics. Two aspects of the interface that can be problematic to implement are MPI-IO atomic mode and the shared file pointer access routines. Atomic mode requires enforcing strict consistency semantics, and shared file pointer routines require communication and coordination in order to atomically update a shared resource. For some file systems, native locks may be used to implement these features, but not all file systems have lock support. In this work, we describe algorithms for implementing efficient mutex locks using MPI-1 and the one-sided capabilities from MPI-2. We then show how these algorithms may be used to implement both MPI-IO atomic mode and shared file pointer methods for ROMIO without requiring any features from the underlying file system. We show that these algorithms can outperform traditional file system lock approaches. Because of the portable nature of these algorithms, they are likely useful in a variety of situations where distributed locking or coordination is needed in the MPI-2 environment.

  9. Evaluation of Forces Generated on Three Different Rotary File Systems in Apical Third of Root Canal using Finite Element Analysis

    PubMed Central

    Medha, Ashish; Patil, Suvarna; Hoshing, Upendra; Bandekar, Siddhesh

    2014-01-01

    Aim: Aim of the study is to evaluate the distribution of forces on the instrument in the apical 3rd of curved canal with three Nickel Titanium rotary systems. Methodology: Three brands of instruments (ProTaper Universal; DENTSPLY Maillefer, RevoS; MicroMega and Hyflex; Coltene-Whaledent, Allstetten, Switzerland) were scanned with the Laser assisted computerized scanner to produce a real-size, 3-dimensional (3-D) model for each. The stresses on the instrument during simulated shaping of a root canal were analyzed numerically by using a 3-D finite element package, taking into account the nonlinear mechanical behavior of the nickel-titanium material. Results: RevoS shows lowest values for force generation in the apical 3rd of canal as compared to Protaper which shows highest values, while Hyflex shows intermediate values for forces. Conclusion: With FE simulation of root canal shaping by 3 files, it was observed that different instrument designs would experience unequal degree of force generation in canal, as well as reaction torque from the root canal wall. PMID:24596786

  10. 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.

  11. Evaluation of two cooling systems under a firefighter coverall.

    PubMed

    Teunissen, Lennart P J; Wang, Li-Chu; Chou, Shih-Nung; Huang, Chin-Hsien; Jou, Gwo-Tsuen; Daanen, Hein A M

    2014-11-01

    Firemen often suffer from heat strain. This study investigated two chest cooling systems for use under a firefighting suit. In nine male subjects, a vest with water soaked cooling pads and a vest with water perfused tubes were compared to a control condition. Subjects performed 30 min walking and 10 min recovery in hot conditions, while physiological and perceptual parameters were measured. No differences were observed in heart rate and rectal temperature, but scapular skin temperature and fluid loss were lower using the perfused vest. Thermal sensation was cooler for the perfused vest than for the other conditions, while the cool pad vest felt initially cooler than control. However, comfort and RPE scores were similar. We conclude that the cooling effect of both tested systems, mainly providing a (temporally) cooler thermal sensation, was limited and did not meet the expectations. PMID:24798511

  12. Mathematical modeling of the behavior of geothermal systems under exploitation

    SciTech Connect

    Bodvarsson, G.S.

    1982-01-01

    Analytical and numerical methods have been used in this investigation to model the behavior of geothermal systems under exploitation. The work is divided into three parts: (1) development of a numerical code, (2) theoretical studies of geothermal systems, and (3) field applications. A new single-phase three-dimensional simulator, capable of solving heat and mass flow problems in a saturated, heterogeneous porous or fractured medium has been developed. The simulator uses the integrated finite difference method for formulating the governing equations and an efficient sparse solver for the solution of the linearized equations. In the theoretical studies, various reservoir engineering problems have been examined. These include (a) well-test analysis, (b) exploitation strategies, (c) injection into fractured rocks, and (d) fault-charged geothermal reservoirs.

  13. 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).

  14. 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.

  15. Enhanced PCE dechlorination by biobarrier systems under different redox conditions.

    PubMed

    Kao, C M; Chen, Y L; Chen, S C; Yeh, T Y; Wu, W S

    2003-12-01

    The industrial solvent tetrachloroethylene (PCE) is among the most ubiquitous chlorinated compounds found in groundwater contamination. The objective of this study was to evaluate the (1) feasibility of enhancing PCE biodegradation using cane molasses and sludge cakes as the primary substrates under methanogenic and iron reducing conditions, and (2) potential of installation a sludge cake/cane molasses biobarrier to clean up PCE-contaminated aquifers. The biodegradability of sludge cake (from secondary wastewater treatment system) and cane molasses was tested using bioavailability experiments. Results show that biodegradable materials were released from sludge cake/cane molasses and utilized by microbial consortia. Based on the chemical oxygen demand (COD) tests, approximately 28 and 248 mg of biodegradable COD can be released from 1g of sludge cake and 1g of cane molasses under anaerobic conditions, which have the potential to convert 70 and 620 mg of PCE to ethylene (ETH), respectively. Reductive dechlorination was evaluated using microcosms containing primary substrates (sludge cake/cane molasses) and inocula (aquifer sediments). Results indicate that sludge cake and cane molasses can serve as the diffusion sources of primary substrates, and enhance the reductive dechlorination of PCE under methanogenic processes. However, results from this study were not sufficient enough to show that reductive dechlorination of PCE would occur under iron-reducing conditions. This indicates that more studies need to be performed to further evaluate the role of iron reduction on the PCE dechlorination. Results reveal that it is feasible and applicable to install a sludge cake or cane molasses biobarrier to clean up PCE contaminated aquifers. From an engineering point of view, the sludge cake/cane molasses biobarrier has the potential to become an environmentally and economically acceptable technology for PCE bioremediation. PMID:14604634

  16. 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)

  17. System for Processing Coded OFDM Under Doppler and Fading

    NASA Technical Reports Server (NTRS)

    Tsou, Haiping; Darden, Scott; Lee, Dennis; Yan, Tsun-Yee

    2005-01-01

    An advanced communication system has been proposed for transmitting and receiving coded digital data conveyed as a form of quadrature amplitude modulation (QAM) on orthogonal frequency-division multiplexing (OFDM) signals in the presence of such adverse propagation-channel effects as large dynamic Doppler shifts and frequency-selective multipath fading. Such adverse channel effects are typical of data communications between mobile units or between mobile and stationary units (e.g., telemetric transmissions from aircraft to ground stations). The proposed system incorporates novel signal processing techniques intended to reduce the losses associated with adverse channel effects while maintaining compatibility with the high-speed physical layer specifications defined for wireless local area networks (LANs) as the standard 802.11a of the Institute of Electrical and Electronics Engineers (IEEE 802.11a). OFDM is a multi-carrier modulation technique that is widely used for wireless transmission of data in LANs and in metropolitan area networks (MANs). OFDM has been adopted in IEEE 802.11a and some other industry standards because it affords robust performance under frequency-selective fading. However, its intrinsic frequency-diversity feature is highly sensitive to synchronization errors; this sensitivity poses a challenge to preserve coherence between the component subcarriers of an OFDM system in order to avoid intercarrier interference in the presence of large dynamic Doppler shifts as well as frequency-selective fading. As a result, heretofore, the use of OFDM has been limited primarily to applications involving small or zero Doppler shifts. The proposed system includes a digital coherent OFDM communication system that would utilize enhanced 802.1la-compatible signal-processing algorithms to overcome effects of frequency-selective fading and large dynamic Doppler shifts. The overall transceiver design would implement a two-frequency-channel architecture (see figure) that would afford frequency diversity for reducing the adverse effects of multipath fading. By using parallel concatenated convolutional codes (also known as Turbo codes) across the dual-channel and advanced OFDM signal processing within each channel, the proposed system is intended to achieve at least an order of magnitude improvement in received signal-to-noise ratio under adverse channel effects while preserving spectral efficiency.

  18. Biennial Reporting System (BRS) data: Generation and management of hazardous waste, 1991. Data file

    SciTech Connect

    Not Available

    1991-01-01

    Product contains data compiled by the Biennial Reporting System (BRS) for the National Biennial RCRA Hazardous Waste Report (Based on 1991 data)'. The data were collected by states using the 1991 National Hazardous Waste Report Instructions and Forms' (EPA Form 8700-13-A/B (Revised 08-91)), or the state's equivalent information source. Data for all states are included. Data for reports protected by RCRA Confidential Business Information (CBI) claims not included. The data contains information describing the RCRA wastes generated and/or managed during 1991 by RCRA Treatment, Storage and Disposal Facilities (TSDFs) and RCRA Large Quantity Generators (LQGs). Data are reported by sites meeting the LQG and/or TSDF definitions. Sites are identified by their EPA/RCRA identification number.

  19. Biennial reporting system (BRS) 1989 (date of coverage: 1989). Data file

    SciTech Connect

    Not Available

    1989-01-01

    Product contains data compiled by the Biennial Reporting System (BRS) for the National Biennial RCRA Hazardous Waste Report (Based on 1989 data). The data were collected by states using the 1989 National Hazardous Waste Report Instructions and Forms (EPA Form 8700-13-A/B), or the state's equivalent information source. Data for all states are included. Data for reports protected by RCRA Confidential Business Information (CBI) claims are not included. The data contains information describing the RCRA wastes generated and/or managed during 1989 by RCRA Treatment, Storage and Disposal Facilities (TSDF) and RCRA Large Quantity Generators (LQG). Data are reported by sites meeting the LQG and/or TSDF definitions. Sites are identified by their EPA/RCRA identification number. Response codes have been averted to match those of the '1991 Hazardous Waste Report: Instructions and Forms' (EPA Form 8700-13-A/B) (5/80) (Revised 08-91).

  20. A Systems Modeling Approach for Risk Management of Command File Errors

    NASA Technical Reports Server (NTRS)

    Meshkat, Leila

    2012-01-01

    The main cause of commanding errors is often (but not always) due to procedures. Either lack of maturity in the processes, incompleteness of requirements or lack of compliance to these procedures. Other causes of commanding errors include lack of understanding of system states, inadequate communication, and making hasty changes in standard procedures in response to an unexpected event. In general, it's important to look at the big picture prior to making corrective actions. In the case of errors traced back to procedures, considering the reliability of the process as a metric during its' design may help to reduce risk. This metric is obtained by using data from Nuclear Industry regarding human reliability. A structured method for the collection of anomaly data will help the operator think systematically about the anomaly and facilitate risk management. Formal models can be used for risk based design and risk management. A generic set of models can be customized for a broad range of missions.

  1. Optimal maintenance of a multi-unit system under dependencies

    NASA Astrophysics Data System (ADS)

    Sung, Ho-Joon

    The availability, or reliability, of an engineering component greatly influences the operational cost and safety characteristics of a modern system over its life-cycle. Until recently, the reliance on past empirical data has been the industry-standard practice to develop maintenance policies that provide the minimum level of system reliability. Because such empirically-derived policies are vulnerable to unforeseen or fast-changing external factors, recent advancements in the study of topic on maintenance, which is known as optimal maintenance problem, has gained considerable interest as a legitimate area of research. An extensive body of applicable work is available, ranging from those concerned with identifying maintenance policies aimed at providing required system availability at minimum possible cost, to topics on imperfect maintenance of multi-unit system under dependencies. Nonetheless, these existing mathematical approaches to solve for optimal maintenance policies must be treated with caution when considered for broader applications, as they are accompanied by specialized treatments to ease the mathematical derivation of unknown functions in both objective function and constraint for a given optimal maintenance problem. These unknown functions are defined as reliability measures in this thesis, and theses measures (e.g., expected number of failures, system renewal cycle, expected system up time, etc.) do not often lend themselves to possess closed-form formulas. It is thus quite common to impose simplifying assumptions on input probability distributions of components' lifetime or repair policies. Simplifying the complex structure of a multi-unit system to a k-out-of-n system by neglecting any sources of dependencies is another commonly practiced technique intended to increase the mathematical tractability of a particular model. This dissertation presents a proposal for an alternative methodology to solve optimal maintenance problems by aiming to achieve the same end-goals as Reliability Centered Maintenance (RCM). RCM was first introduced to the aircraft industry in an attempt to bridge the gap between the empirically-driven and theory-driven approaches to establishing optimal maintenance policies. Under RCM, qualitative processes that enable the prioritizing of functions based on the criticality and influence would be combined with mathematical modeling to obtain the optimal maintenance policies. Where this thesis work deviates from RCM is its proposal to directly apply quantitative processes to model the reliability measures in optimal maintenance problem. First, Monte Carlo (MC) simulation, in conjunction with a pre-determined Design of Experiments (DOE) table, can be used as a numerical means of obtaining the corresponding discrete simulated outcomes of the reliability measures based on the combination of decision variables (e.g., periodic preventive maintenance interval, trigger age for opportunistic maintenance, etc.). These discrete simulation results can then be regressed as Response Surface Equations (RSEs) with respect to the decision variables. Such an approach to represent the reliability measures with continuous surrogate functions (i.e., the RSEs) not only enables the application of the numerical optimization technique to solve for optimal maintenance policies, but also obviates the need to make mathematical assumptions or impose over-simplifications on the structure of a multi-unit system for the sake of mathematical tractability. The applicability of the proposed methodology to a real-world optimal maintenance problem is showcased through its application to a Time Limited Dispatch (TLD) of Full Authority Digital Engine Control (FADEC) system. In broader terms, this proof-of-concept exercise can be described as a constrained optimization problem, whose objective is to identify the optimal system inspection interval that guarantees a certain level of availability for a multi-unit system. A variety of reputable numerical techniques were used to model the problem as accurately as possible, including algorithms for the MC simulation, imperfect maintenance model from quasi renewal processes, repair time simulation, and state transition rules. Variance Reduction Techniques (VRTs) were also used in an effort to enhance MC simulation efficiency. After accurate MC simulation results are obtained, the RSEs are generated based on the goodness-of-fit measure to yield as parsimonious model as possible to construct the optimization problem. Under the assumption of constant failure rate for lifetime distributions, the inspection interval from the proposed methodology was found to be consistent with the one from the common approach used in industry that leverages Continuous Time Markov Chain (CTMC). While the latter does not consider maintenance cost settings, the proposed methodology enables an operator to consider different types of maintenance cost settings, e.g., inspection cost, system corrective maintenance cost, etc., to result in more flexible maintenance policies. When the proposed methodology was applied to the same TLD of FADEC example, but under the more generalized assumption of strictly Increasing Failure Rate (IFR) for lifetime distribution, it was shown to successfully capture component wear-out, as well as the economic dependencies among the system components.

  2. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 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 under the LIFE Act Amendments. The Director will provide the...

  3. 8 CFR 245a.33 - Filing.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 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 under the LIFE Act Amendments. The Director will provide the...

  4. 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 under the LIFE Act Amendments. The Director will provide the...

  5. 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 sustainable management of water resources. The decision support system helps in analyzing the impacts of different reservoir operation scenarios, under changing climate conditions, by exploring multiple- what-if- scenarios. Canadian study areas and data sets are used for the research. However, the proposed approach provides a general framework that can be used in other parts of the world.

  6. Site Enforcement Tracking System (SETS) (Region 2) (for microcomputers). Data file

    SciTech Connect

    Not Available

    1990-08-01

    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 is used to form the Site Enforcement Tracking System (SETS). This 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. Region 2 includes New Jersey, New York, Puerto Rico, and the Virgin Islands.

  7. 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.

  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. 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.

  10. Case File: The Spazzoids

    MedlinePLUS

    ... Diseases Home Page Immune Platoon Disease Database Case file: The Spazzzoids Real name: tetanus Known aliases: lockjaw, ... get infected with tetanus. Immune Platoon Disease Database File Formats Help: How do I view different file ...

  11. 20 CFR 321.2 - Filing claims for benefits electronically.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 1 2013-04-01 2012-04-01 true Filing claims for benefits electronically. 321.2 Section 321.2 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.2 Filing claims...

  12. 20 CFR 321.1 - Filing applications electronically.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 1 2013-04-01 2012-04-01 true Filing applications electronically. 321.1 Section 321.1 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT ELECTRONIC FILING OF APPLICATIONS AND CLAIMS FOR BENEFITS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT § 321.1 Filing...

  13. 10 CFR 52.15 - Filing of applications.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Filing of applications. 52.15 Section 52.15 Energy NUCLEAR... Permits § 52.15 Filing of applications. (a) Any person who may apply for a construction permit under 10 CFR part 50, or for a combined license under this part, may file an application for an early...

  14. Transparent handling of small files with dCache to optimize tape access

    NASA Astrophysics Data System (ADS)

    Schwank, Karsten; Krücker, Dirk; Fuhrmann, Patrick; Mkrtchyan, Tigran; Millar, Paul; pre="Christian Bernardt (DESY, Dmitry

    2015-12-01

    We introduce a service for dCache that allows automatic and transparent packing and extracting of file sets into large container files. This is motivated by the adoption of dCache by new communities that often work with rather small data files which causes large time overheads on reads and writes by the underlying tape systems. Our service can be attached to existing dCache instances and we were show that it is able to optimize average access times to tape access.

  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. 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...

  17. 49 CFR 31.26 - Filing, form, and service of papers.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 1 2012-10-01 2012-10-01 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...

  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

    The generation and distpatch of electricity while maintaining high reliability levels are two of the most daunting engineering problems of the modern era. This was demonstrated by the Northeast blackout of August 2003, which resulted in the loss of 6.2 gigawatts that served more than 50 million people and which resulted in economic losses on the order of $10 billion. In addition, there exist strong socioeconomic pressures to improve the efficiency of the grid. The most prominent solution to this problem is a substantial increase in the use of renewable energy such as wind and solar. In turn, its uncertain availability—which is due to the intrinsic weather variability—will increase the likelihood of disruptions. In this endeavors of current and next-generation power systems, forecasting atmospheric conditions with uncertainty can and will play a central role, at both the demand and the generation ends. User demands are strongly correlated to physical conditions such as temperature, humidity, and solar radiation. The reason is that the ambient temperature and solar radiation dictate the amount of air conditioning and lighting needed in residential and commercial buildings. But these potential benefits would come at the expense of increased variability in the dynamics of both production and demand, which would become even more dependent on weather state and its uncertainty. One of the important challenges for energy in our time is how to harness these benefits while “keeping the lights on”—ensuring that the demand is satisfied at all times and that no blackout occurs while all energy sources are optimally used. If we are to meet this challenge, accounting for uncertainty in the atmospheric conditions is essential, since this will allow minimizing the effects of false positives: committing too little baseline power in anticipation of demand that is underestimated or renewable energy levels that fail to materialize. In this work we describe a framework for the 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. Endodontic Treatment of Maxillary Premolar with Three Root Canals Using Optical Microscope and NiTi Rotatory Files System.

    PubMed

    Relvas, Joăo Bosco Formiga; de Carvalho, Fredsom Marcio Acris; Marques, André Augusto Franco; Sponchiado, Emílio Carlos; Garcia, Lucas da Fonseca Roberti

    2013-01-01

    The aim of the study was to report a clinical case of endodontic treatment of a maxillary first premolar with three root canals using an optical microscope and rotary instrumentation technique. The main complaint of the patient, a 16-year-old girl, was pain in tooth 14. After clinical and radiographic examination, irreversible pulpitis was diagnosed. An alteration in the middle third of the pulp chamber radiographically observed suggested the presence of three root canals. Pulp chamber access and initial catheterization using size number 10 K-files were performed. The optical microscope and radiographic examination were used to confirm the presence of three root canals. PathFiles #13, #16, and #19 were used to perform catheterization and ProTaper files S1 and S2 for cervical preparation. Apical preparation was performed using F1 file in the buccal canals and F2 in the palatal canal up to the working length. The root canals were filled with Endofill sealer by thermal compaction technique using McSpadden #50. The case has been receiving follow-up for 12 months and no painful symptomatology or periapical lesions have been found. The use of technological tools was able to assist the endodontic treatment of teeth with complex internal anatomy, such as three-canal premolars. PMID:24367728

  20. 5 CFR 2425.2 - Exceptions-who may file; time limits for filing, including determining date of service of...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... filing the exceptions under 5 CFR 2429.22. (2) If the award is served by commercial delivery, then the... additional rules regarding computing the filing date, see 5 CFR 2429.21 and 2429.22. (c) Methods of service..., the excepting party will receive an additional five days for filing the exceptions under 5 CFR...

  1. 5 CFR 2425.2 - Exceptions-who may file; time limits for filing, including determining date of service of...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... filing the exceptions under 5 CFR 2429.22. (2) If the award is served by commercial delivery, then the... additional rules regarding computing the filing date, see 5 CFR 2429.21 and 2429.22. (c) Methods of service..., the excepting party will receive an additional five days for filing the exceptions under 5 CFR...

  2. 5 CFR 2425.2 - Exceptions-who may file; time limits for filing, including determining date of service of...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... filing the exceptions under 5 CFR 2429.22. (2) If the award is served by commercial delivery, then the... additional rules regarding computing the filing date, see 5 CFR 2429.21 and 2429.22. (c) Methods of service..., the excepting party will receive an additional five days for filing the exceptions under 5 CFR...

  3. 5 CFR 2425.2 - Exceptions-who may file; time limits for filing, including determining date of service of...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... filing the exceptions under 5 CFR 2429.22. (2) If the award is served by commercial delivery, then the... additional rules regarding computing the filing date, see 5 CFR 2429.21 and 2429.22. (c) Methods of service..., the excepting party will receive an additional five days for filing the exceptions under 5 CFR...

  4. 77 FR 61595 - Northern Illinois Municipal Power; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Energy Regulatory Commission Northern Illinois Municipal Power; Notice of Filing October 2, 2012. Take notice that on October 1, 2012, Northern Illinois Municipal Power filed its Revised and Superseding Proposed Revenue Requirement for reactive supply service under Midwest Independent Transmission...

  5. 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...

  6. Comparison of the shaping ability of GT® Series X, Twisted Files and AlphaKite rotary nickel-titanium systems in simulated canals

    PubMed Central

    2013-01-01

    Background Efforts to improve the performance of rotary NiTi instruments by enhancing the properties of NiTi alloy, or their manufacturing processes rather than changes in instrument geometries have been reported. The aim of this study was to compare in-vitro the shaping ability of three different rotary nickel-titanium instruments produced by different manufacturing methods. Methods Thirty simulated root canals with a curvature of 35? in resin blocks were prepared with three different rotary NiTi systems: AK- AlphaKite (Gebr. Brasseler, Germany), GTX- GT® Series X (Dentsply, Germany) and TF- Twisted Files (SybronEndo, USA). The canals were prepared according to the manufacturers’ instructions. Pre- and post-instrumentation images were recorded and assessment of canal curvature modifications was carried out with an image analysis program (GSA, Germany). The preparation time and incidence of procedural errors were recorded. Instruments were evaluated under a microscope with 15?×?magnifications (Carl Zeiss OPMI Pro Ergo, Germany) for signs of deformation. The Data were statistically analyzed using SPSS (Wilcoxon and Mann–Whitney U-tests, at a confidence interval of 95%). Results Less canal transportation was produced by TF apically, although the difference among the groups was not statistically significant. GTX removed the greatest amount of resin from the middle and coronal parts of the canal and the difference among the groups was statistically significant (p?Under the conditions of this study, all rotary NiTi instruments maintained the working length and prepared a well-shaped root canal. The least canal transportation was produced by AK. GTX displayed the greatest cutting efficiency. TF prepared the canals faster than the other two systems. PMID:24341354

  7. New Infrared Imaging Systems under Development at UCLA

    NASA Astrophysics Data System (ADS)

    McLean, I. S.; Liu, T.; Macintosh, B.; Becklin, E.; Brims, G.; Canfield, J.; Casement, S.; Henriquez, F.; Huang, A.; Magnone, N.; Schultz, G.

    1992-05-01

    Two different near infrared array detectors with 256x256 formats have been operated successfully at the new Infrared Imaging Detector Lab at UCLA; the lab and team were developed from scratch in Fall 1989. The first of these detectors is an engineering-grade NICMOS III mercury-cadmium-telluride (HgCdTe) array manufactured by Rockwell International. This detector (provided by P.I. Rodger Thompson, NICMOS project, Steward Observatory (NASA/GSFC NAS5-31289) to NICMOS Co-I. Becklin) has been characterized by laboratory experiments and has also been commissioned in an astronomical camera system named KCam at the University of California Observatories 1-m telescope on Mt. Hamilton. The QE at 2 microns is 60\\ Correlated Double Sampling mode is 47 e. Multiple Sampling with 4 non-destructive readouts has reduced the total noise to 26 e. KCam is a simple imaging system optimized for surveys and photometry in the 2 micron window. With a K' filter the total system throughput is about 25\\ 12.5 mag/sq. arcsec and the observed, background-limited sensitivity is 3 sigma, 30 minutes = 17.8 for a point source within 3.4 x 3.4 arcsec; one pixel is 0.48 arcsec. This instrument has been used, for example, in a search for brown dwarf candidates in the Hyades cluster and for photometry of RR Lyrae stars in heavily reddened globular clusters towards the Galactic Center. The second detector is the indium antimonide (InSb) array from Santa Barbara Research Center. First light was obtained in March 1992 and the latest results will be presented. Under development at UCLA is a two-color imaging system in which a dichroic beam-splitter is used to enable two wavelengths to be observed simultaneously; each channel will contain a 256x256 array. This camera, which is supported by an NSF grant, will provide a field of 64 arcsecs at 0.25 arcsec per pixel at the f/15 foci of the W.M. Keck 10-m telescope.

  8. 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 universal software to read and write the data.

  9. 75 FR 69486 - Self-Regulatory Organizations; The Depository Trust Company; Notice of Filing and Immediate...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-12

    ... Management System November 5, 2010. Correction In FR Document No. 2010-27856 beginning on page 68013 for Thursday, November 4, 2010, the paragraph under which The Depository Trust Company (``DTC'') filed the... of 1934 (``Exchange Act'') and Rule 19b-4(f)(3) thereunder. The correct paragraph under which...

  10. 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 / fresh water interface (position of the submarine groundwater discharge) may appear on the seafloor. Moreover, neither the salinity concentration nor the groundwater age depends on depth. It is thought that it is because that the groundwater forms the complex flow situation through the change in a long-term groundwater flow system. The technology to understand the coastal groundwater flow consists of remote sensing, geographical features analysis, surface of the earth investigation, geophysical exploration, drilling survey, and indoor examination and the measurement. Integration of each technology is needed to interpret groundwater flow system because the one is to catch the local groundwater flow in the time series and another one is to catch the long-term and regional groundwater flow in the general situation. The purpose of this study is to review the previous research of coastal groundwater flow, and to integrate an applicable evaluation approach to understand this mechanism. In this presentation, the review of the research and case study using numerical simulation are introduced.

  11. Cooling of a magmatic system under thermal chaotic mixing

    NASA Astrophysics Data System (ADS)

    Petrelli, Maurizio; El Omari, Kamal; Le Guer, Yves; Perugini, Diego

    2015-04-01

    The cooling of a melt undergoing chaotic advection is studied numerically for a magma with a temperature-dependent viscosity in a 2D cavity with moving boundary. Different statistical mixing and energy indicators are used to characterize the efficiency of cooling by thermal chaotic mixing. We show that different cooling rates can be obtained during the thermal mixing even of a single basaltic magmatic batch undergoing chaotic advection. This process can induce complex temperature patterns inside the magma chamber. The emergence of chaotic dynamics strongly affects the temperature field during time and greatly increases the cooling rates. This mechanism has implications for the lifetime of a magmatic body and may favor the appearance of chemical heterogeneities in igneous systems as a result of different crystallization rates. Results from this study also highlight that even a single magma batch can develop, under chaotic thermal advection, complex thermal and therefore compositional patterns resulting from different cooling rates, which can account for some natural features that, to date, have received unsatisfactory explanations. Among them, the production of magmatic enclaves showing completely different cooling histories compared with the host magma, compositional zoning in mineral phases, and the generation of large-scale compositionally zoning observed in many plutons worldwide.

  12. Neural Systems Underlying the Reappraisal of Personally Craved Foods

    PubMed Central

    Giuliani, Nicole R.; Mann, Traci; Tomiyama, A. Janet; Berkman, Elliot T.

    2014-01-01

    Craving of unhealthy food is a common target of self-regulation, but the neural systems underlying this process are understudied. In this study, participants used cognitive reappraisal to regulate their desire to consume idiosyncratically craved or not craved energy-dense foods, and neural activity during regulation was compared with each other and with the activity during passive viewing of energy-dense foods. Regulation of both food types elicited activation in classic top–down self-regulation regions including the dorsolateral prefrontal, inferior frontal, and dorsal anterior cingulate cortices. This main effect of regulation was qualified by an interaction, such that activation in these regions was significantly greater during reappraisal of craved (versus not craved) foods and several regions, including the dorsolateral prefrontal, inferior frontal, medial frontal, and dorsal anterior cingulate cortices, were uniquely active during regulation of personally craved foods. Body mass index significantly negatively correlated with regulation-related activation in the right dorsolateral PFC, thalamus, and bilateral dorsal ACC and with activity in nucleus accumbens during passive viewing of craved (vs. neutral, low-energy density) foods. These results suggest that several of the brain regions involved in the self-regulation of food craving are similar to other kinds of affective self-regulation and that others are sensitive to the self-relevance of the regulation target. PMID:24392892

  13. 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.

  14. Multiscale Systems Biology and Physics of Thrombosis under Flow

    PubMed Central

    Flamm, M. H.

    2012-01-01

    Blood clotting under hemodynamic conditions involves numerous multiscale interactions from the molecular scale to macroscopic vessel and systemic circulation scales. Transmission of shear forces to platelet receptors such as GPIb?, P-selectin, ?2?1, and ?2b?3 controls adhesion dynamics. These forces also drive membrane tether formation, cellular deformation, and mechanosignaling in blood cells. Blood flow results in red blood cell (RBC) drift towards the center of the vessel along with a near-wall plasma layer enriched with platelets. RBC motions also dramatically enhance platelet dispersion. Trajectories of individual platelets near a thrombotic deposit dictate capture-activation-arrest dynamics as these newly arriving platelets are exposed to chemical gradients of ADP, thromboxane, and thrombin within a micron-scale boundary layer formed around the deposit. If shear forces are sufficiently elevated (> 50 dyne/cm2), the largest polymers of von Willebrand Factor may elongate with concomitant shear-induced platelet activation. Finally, thrombin generation enhances platelet recruitment and clot strength via fibrin polymerization. By combination of coarse-graining, continuum, and stochastic algorithms, the numerical simulation of the growth rate, composition, and occlusive/embolic potential of a thrombus now spans multiscale phenomena. These simulations accommodate particular flow geometries, blood phenotype, pharmacological regimen, and reactive surfaces to help predict disease risk or response to therapy. PMID:22460075

  15. Multiobjective design of water distribution systems under uncertainty

    NASA Astrophysics Data System (ADS)

    Kapelan, Zoran S.; Savic, Dragan A.; Walters, Godfrey A.

    2005-11-01

    The water distribution system (WDS) design problem is defined here as a multiobjective optimization problem under uncertainty. The two objectives are (1) minimize the total WDS design cost and (2) maximize WDS robustness. The WDS robustness is defined as the probability of simultaneously satisfying minimum pressure head constraints at all nodes in the network. Decision variables are the alternative design options for each pipe in the network. The sources of uncertainty are future water consumption and pipe roughness coefficients. Uncertain variables are modeled using probability density functions (PDFs) assigned in the problem formulation phase. The corresponding PDFs of the analyzed nodal heads are calculated using the Latin hypercube sampling technique. The optimal design problem is solved using the newly developed RNSGAII method based on the nondominated sorting genetic algorithm II (NSGAII). In RNSGAII a small number of samples are used for each fitness evaluation, leading to significant computational savings when compared to the full sampling approach. Chromosome fitness is defined here in the same way as in the NSGAII optimization methodology. The new methodology is tested on several cases, all based on the New York tunnels reinforcement problem. The results obtained demonstrate that the new methodology is capable of identifying robust Pareto optimal solutions despite significantly reduced computational effort.

  16. Neural systems underlying the reappraisal of personally craved foods.

    PubMed

    Giuliani, Nicole R; Mann, Traci; Tomiyama, A Janet; Berkman, Elliot T

    2014-07-01

    Craving of unhealthy food is a common target of self-regulation, but the neural systems underlying this process are understudied. In this study, participants used cognitive reappraisal to regulate their desire to consume idiosyncratically craved or not craved energy-dense foods, and neural activity during regulation was compared with each other and with the activity during passive viewing of energy-dense foods. Regulation of both food types elicited activation in classic top-down self-regulation regions including the dorsolateral prefrontal, inferior frontal, and dorsal anterior cingulate cortices. This main effect of regulation was qualified by an interaction, such that activation in these regions was significantly greater during reappraisal of craved (versus not craved) foods and several regions, including the dorsolateral prefrontal, inferior frontal, medial frontal, and dorsal anterior cingulate cortices, were uniquely active during regulation of personally craved foods. Body mass index significantly negatively correlated with regulation-related activation in the right dorsolateral PFC, thalamus, and bilateral dorsal ACC and with activity in nucleus accumbens during passive viewing of craved (vs. neutral, low-energy density) foods. These results suggest that several of the brain regions involved in the self-regulation of food craving are similar to other kinds of affective self-regulation and that others are sensitive to the self-relevance of the regulation target. PMID:24392892

  17. Cooling of a Magmatic System Under Thermal Chaotic Mixing

    NASA Astrophysics Data System (ADS)

    El Omari, Kamal; Le Guer, Yves; Perugini, Diego; Petrelli, Maurizio

    2015-07-01

    The cooling of a basaltic melt undergoing chaotic advection is studied numerically for a magma with a temperature-dependent viscosity in a two-dimensional (2D) cavity with moving boundary. Different statistical mixing and energy indicators are used to characterize the efficiency of cooling by thermal chaotic mixing. We show that different cooling rates can be obtained during the thermal mixing of a single basaltic magmatic batch undergoing chaotic advection. This process can induce complex temperature patterns inside the magma chamber. The emergence of chaotic dynamics strongly modulates the temperature fields over time and greatly increases the cooling rates. This mechanism has implications for the thermal lifetime of the magmatic body and may favor the appearance of chemical heterogeneities in the igneous system as a result of different crystallization rates. Results from this study also highlight that even a single magma batch can develop, under chaotic thermal advection, complex thermal and therefore compositional patterns resulting from different cooling rates, which can account for some natural features that, to date, have received unsatisfactory explanations, including the production of magmatic enclaves showing completely different cooling histories compared with the host magma, compositional zoning in mineral phases, and the generation of large-scale compositional zoning observed in many plutons worldwide.

  18. Biodiversity under threat in glacier-fed river systems

    NASA Astrophysics Data System (ADS)

    Jacobsen, Dean; Milner, Alexander M.; Brown, Lee E.; Dangles, Olivier

    2012-05-01

    Freshwater biodiversity is under threat across the globe, with climate change being a significant contributor. One impact of climate change is the rapid shrinking of glaciers, resulting in a reduction in glacial meltwater contribution to river flow in many glacierized catchments. These changes potentially affect the biodiversity of specialized glacier-fed river communities. Perhaps surprisingly then, although freshwater biodiversity is a major conservation priority, the effects of shrinkage and disappearance of glaciers on river biodiversity have hitherto been poorly quantified. Here we focus on macroinvertebrates (mainly insect larvae) and demonstrate that local (α) and regional (γ) diversity, as well as turnover among reaches (β-diversity), will be consistently reduced by the shrinkage of glaciers. We show that 11-38% of the regional species pools, including endemics, can be expected to be lost following complete disappearance of glaciers in a catchment, and steady shrinkage is likely to reduce taxon turnover in proglacial river systems and local richness at downstream reaches where glacial cover in the catchment is less than 5-30%. Our analysis demonstrates not only the vulnerability of local biodiversity hotspots but also that extinction will probably greatly exceed the few known endemic species in glacier-fed rivers.

  19. EFFECTS OF TILLAGE SYSTEMS ON SOIL MICROBIAL COMMUNITY STRUCTURE UNDER A CONTINUOUS COTTON CROPPING SYSTEM

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Soil management practices affect soil microbial communities which, in turn, influence soil ecosystem processes. In this study, the effects of conventional and no-tillage practices on soil microbial communities were examined under continuous cotton (Gossypium hirsutum L.) systems on a Decatur silt l...

  20. Model evaluation of denitrification under rapid infiltration basin systems

    NASA Astrophysics Data System (ADS)

    Akhavan, Maryam; Imhoff, Paul T.; Andres, A. Scott; Finsterle, Stefan

    2013-09-01

    Rapid Infiltration Basin Systems (RIBS) are used for disposing reclaimed wastewater into soil to achieve additional treatment before it recharges groundwater. Effluent from most new sequenced batch reactor wastewater treatment plants is completely nitrified, and denitrification (DNF) is the main reaction for N removal. To characterize effects of complex surface and subsurface flow patterns caused by non-uniform flooding on DNF, a coupled overland flow-vadose zone model is implemented in the multiphase flow and reactive transport simulator TOUGHREACT. DNF is simulated in two representative soils varying the application cycle, hydraulic loading rate, wastewater quality, water table depth, and subsurface heterogeneity. Simulations using the conventional specified flux boundary condition under-predict DNF by as much as 450% in sand and 230% in loamy sand compared to predictions from the coupled overland flow-vadose zone model, indicating that simulating coupled flow is critical for predicting DNF in cases where hydraulic loading rates are not sufficient to spread the wastewater over the whole basin. Smaller ratios of wetting to drying time and larger hydraulic loading rates result in greater water saturations, more anoxic conditions, and faster water transport in the vadose zone, leading to greater DNF. These results in combination with those from different water table depths explain why reported DNF varied with soil type and water table depth in previous field investigations. Across all simulations, cumulative percent DNF varies between 2 and 49%, indicating that NO3 removal in RIBS may vary widely depending on operational procedures and subsurface conditions. These modeling results improve understanding of DNF in RIBS and suggest operational procedures that may improve NO3 removal.

  1. Model evaluation of denitrification under rapid infiltration basin systems.

    PubMed

    Akhavan, Maryam; Imhoff, Paul T; Andres, A Scott; Finsterle, Stefan

    2013-09-01

    Rapid Infiltration Basin Systems (RIBS) are used for disposing reclaimed wastewater into soil to achieve additional treatment before it recharges groundwater. Effluent from most new sequenced batch reactor wastewater treatment plants is completely nitrified, and denitrification (DNF) is the main reaction for N removal. To characterize effects of complex surface and subsurface flow patterns caused by non-uniform flooding on DNF, a coupled overland flow-vadose zone model is implemented in the multiphase flow and reactive transport simulator TOUGHREACT. DNF is simulated in two representative soils varying the application cycle, hydraulic loading rate, wastewater quality, water table depth, and subsurface heterogeneity. Simulations using the conventional specified flux boundary condition under-predict DNF by as much as 450% in sand and 230% in loamy sand compared to predictions from the coupled overland flow-vadose zone model, indicating that simulating coupled flow is critical for predicting DNF in cases where hydraulic loading rates are not sufficient to spread the wastewater over the whole basin. Smaller ratios of wetting to drying time and larger hydraulic loading rates result in greater water saturations, more anoxic conditions, and faster water transport in the vadose zone, leading to greater DNF. These results in combination with those from different water table depths explain why reported DNF varied with soil type and water table depth in previous field investigations. Across all simulations, cumulative percent DNF varies between 2 and 49%, indicating that NO? removal in RIBS may vary widely depending on operational procedures and subsurface conditions. These modeling results improve understanding of DNF in RIBS and suggest operational procedures that may improve NO? removal. PMID:23835290

  2. 37 CFR 401.16 - Electronic filing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Electronic filing. 401.16..., DEPARTMENT 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...

  3. 37 CFR 401.16 - Electronic filing.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2012-07-01 2012-07-01 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...

  4. 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...

  5. 37 CFR 401.16 - Electronic filing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 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...

  6. 37 CFR 401.16 - Electronic filing.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2013-07-01 2013-07-01 false Electronic filing. 401.16..., DEPARTMENT 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...

  7. 78 FR 78956 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... 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,...

  8. 76 FR 30360 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-25

    ... 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,...

  9. 77 FR 28880 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ... 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,...

  10. 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 the Secretary, Federal Maritime Commission,...

  11. 75 FR 28023 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... From the Federal Register Online via the Government Printing 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,...

  12. 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,...

  13. 75 FR 32780 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    ... 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,...

  14. 77 FR 37043 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-20

    ... 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,...

  15. 49 CFR 1002.2 - Filing fees.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... proceeding. (ii) In proceedings filed under the rail consolidation procedures at 49 CFR part 1180, the... exemption under 49 CFR 1150.31-1150.35 $1,900. (iii) Petition for exemption under 49 U.S.C. 10502 $13,400... involving construction of a rail line under 49 CFR 1150.36 $1,900. (iii) A petition for exemption under 49...

  16. 49 CFR 1002.2 - Filing fees.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... proceeding. (ii) In proceedings filed under the rail consolidation procedures at 49 CFR part 1180, the... involving construction of a rail line under 49 CFR 1150.36 $1,800. (iii) A petition for exemption under 49 U... extended or additional rail line under 49 U.S.C. 10902. $6,200. (ii) Notice of exemption under 49 CFR...

  17. Conversion of Files for Circulation Control.

    ERIC Educational Resources Information Center

    Barkalow, Pat

    1979-01-01

    Presents suggestions for reducing labor costs, improving accuracy, and maximizing computer use when converting circulation system bibliographic files. Planning advice is offered for system integration with regional, state, or national systems. (RAA)

  18. 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…

  19. 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…

  20. 42 CFR 403.308 - State systems under demonstration projects-mandatory approval.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 2 2010-10-01 2010-10-01 false State systems under demonstration projects... Reimbursement Control Systems § 403.308 State systems under demonstration projects—mandatory approval. CMS will..., 1983 under an existing demonstration project; and (b) The minimum requirements and assurances...

  1. 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....

  2. 20 CFR 404.1049 - Payments under an employer plan or system.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Payments under an employer plan or system... Wages § 404.1049 Payments under an employer plan or system. (a) Payments to, or on behalf of, you or any of your dependents under your employer's plan or system are excluded from wages if made because...

  3. Soils organic C sequestration under poplar and willow agroforestry systems

    NASA Astrophysics Data System (ADS)

    Gunina, Anna; Tariq, Azeem; Lamersdorf, Norbert

    2015-04-01

    Short rotation coppices (SRC) as monocultures or as agroforestry (AF) applications (e.g. alley cropping) are two techniques to implement forest into agricultural practices. Despite afforestation promotes soil carbon (C) accumulation, age and type of the tree stand can affect the C accumulation in different degrees. Here, we studied the impact of afforestation on C accumulation for: i) pure SCR of willow (Salix viminalis x Salix schwerinii) and poplar (Populus nigra x Populus maximowiczii) and ii) AF cropping system with willow. Forest systems have been established within the BEST agroforestry project in Germany. Adjacent agricultural field have been used as a control. Soil samples were collected in 2014, three years after plantation establishment, from three soil depths: 0-3, 3-20, and 20-30 cm. Total organic C, labile C (incubation of 20 g soil during 100 days with measuring of CO2) and aggregate structure were analysed. Additionally, density fractionation of the samples from 0-3 cm was applied to separate particulate organic matter (POM) and mineral fractions. Aggregates and density fractions were analyzed for C content. High input of plant litter as well as root exudates have led to increases of organic C in AF and SRC plots compare to cropland, mainly in the top 0-3 cm. The highest C content was found for willow SRC (18.2 g kg-1 soil), followed by willow-AF (15.6 g kg-1 soil), and poplar SRC (13.7 g kg-1 soil). Carbon content of cropland was 12.5 g kg-1 soil. Absence of ploughing caused increase portion of macroaggregates (>2000 ÎĽm) under SRC and AF in all soil layers as well as the highest percentage of C in that aggregate size class (70-80%). In contrast, C in cropland soil was mainly accumulated in small macroaggregates (250-2000 ÎĽm). Intensive mineralisation of fresh litter and old POM, taking place during first years of trees development, resulted to similar portions of free POM for willow AF, willow SRC and cropland (8%), and even lower ones for poplar SCR (4.5%). C content in the mineral fraction increased for SRC and AF 1.3-1.5 times compare to cropland, showing that the early stage of trees development lead to C accumulation in stable fractions. CO2 efflux from the surface 0-3 cm was in 2-3 times higher than from 3-20 cm. CO2 efflux did not follow soil C contents and was the highest for poplar SRC plot (1.8 mg C g-1 soil), followed by willow AF (1.6 mg C g-1 soil), willow SRC (1.4 mg C g-1 soil) and cropland (0.8 mg C g-1 soil). Estimated size of labile C pool for forest soils was two times higher and decomposition rates were 1.3 times faster than for the arable site. We conclude that afforestation in the first years mainly affects C accumulation in the top soil. Due to changing in soil structure most of the C was associated with large macroaggregates. Afforestation measures promoted C accumulation in the mineral fractions, whereas C associated with free POM even decreased in case of poplar SRC, compare to cropland soil.

  4. Logjam: A scalable unified log file archiver

    Energy Science and Technology Software Center (ESTSC)

    2001-08-01

    Log files are a necessary record of events on any system. However, as systems scale, so does the volume of data captured. To complicate matters, this data can be distributed across all nodes within the system. This creates challenges in ways to obtain these files as well as archiving them in a consistent manner. It has become commonplace to develop a custom written utility for each system that is tailored specifically to that system. Formore » computer centers that contain multiple systems, each system would have their own respective utility for gathering and archiving log files. Each time a new log file is produced, a modification to the utility is necessary. With each modification, risks of errors could be introduced as well as spending time to introduce that change. This is precisely the purpose of logjam. Once installed, the code only requires modification when new features are required. A configuration file is used to identify each log file as well as where to harvest it and how to archive it. Adding a new log file is as simple as defining it in a configuration file and testing can be performed in the production environment.« less

  5. Logjam: A scalable unified log file archiver

    SciTech Connect

    2001-08-01

    Log files are a necessary record of events on any system. However, as systems scale, so does the volume of data captured. To complicate matters, this data can be distributed across all nodes within the system. This creates challenges in ways to obtain these files as well as archiving them in a consistent manner. It has become commonplace to develop a custom written utility for each system that is tailored specifically to that system. For computer centers that contain multiple systems, each system would have their own respective utility for gathering and archiving log files. Each time a new log file is produced, a modification to the utility is necessary. With each modification, risks of errors could be introduced as well as spending time to introduce that change. This is precisely the purpose of logjam. Once installed, the code only requires modification when new features are required. A configuration file is used to identify each log file as well as where to harvest it and how to archive it. Adding a new log file is as simple as defining it in a configuration file and testing can be performed in the production environment.

  6. ARIZONA: FACILITIES REPORTING UNDER THE BIENNIAL REPORTING SYSTEM (BRS)

    EPA Science Inventory

    Points represent facilities that report hazardous waste generation to the Biennial Reporting System (BRS). These facilities represent BRS reporters for the year 1999. BRS is a national system that collects data on the generation, management, and minimization of hazardous waste. ...

  7. NEVADA FACILITIES REPORTING UNDER THE BIENNIAL REPORTING SYSTEM (BRS)

    EPA Science Inventory

    Points represent facilities that report hazardous waste generation to the Biennial Reporting System (BRS). These facilities represent BRS reporters for the year 1999. BRS is a national system that collects data on the generation, management, and minimization of hazardous waste. ...

  8. CALIFORNIA FACILITIES REPORTING UNDER THE BIENNIAL REPORTING SYSTEM (BRS)

    EPA Science Inventory

    Points represent facilities that report hazardous waste generation to the Biennial Reporting System (BRS). These facilities represent BRS reporters for the year 1999. BRS is a national system that collects data on the generation, management, and minimization of hazardous waste. ...

  9. GUAM - FACILITIES REPORTING UNDER THE BIENNIAL REPORTING SYSTEM (BRS)

    EPA Science Inventory

    Points represent facilities that report hazardous waste generation to the Biennial Reporting System (BRS). These facilities represent BRS reporters for the year 1999. BRS is a national system that collects data on the generation, management, and minimization of hazardous waste. ...

  10. HAWAII - FACILITIES REPORTING UNDER THE BIENNIAL REPORTING SYSTEM (BRS)

    EPA Science Inventory

    Points represent facilities that report hazardous waste generation to the Biennial Reporting System (BRS). These facilities represent BRS reporters for the year 1999. BRS is a national system that collects data on the generation, management, and minimization of hazardous waste. ...

  11. 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.

  12. Authority Files for Microcomputer Databases.

    ERIC Educational Resources Information Center

    Brandt, Scott

    1988-01-01

    Examines the function of an authority file and the application of authority control to microcomputer-based library databases. Capabilities of relational database management systems which allow for an authority control system on the microcomputer level are noted. (10 references) (MES)

  13. 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...

  14. 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,...

  15. 29 CFR 4043.6 - Date of filing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... CERTAIN OTHER NOTIFICATION REQUIREMENTS General Provisions § 4043.6 Date of filing. (a) Post-Event notice... submission under subpart B of this part was filed with the PBGC. (b) Advance notice and Form 200 Filings.... Subpart C of part 4000 of this chapter provides rules for determining when the PBGC receives a...

  16. 29 CFR 4043.6 - Date of filing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... CERTAIN OTHER NOTIFICATION REQUIREMENTS General Provisions § 4043.6 Date of filing. (a) Post-Event notice... submission under subpart B of this part was filed with the PBGC. (b) Advance notice and Form 200 Filings.... Subpart C of part 4000 of this chapter provides rules for determining when the PBGC receives a...

  17. 29 CFR 4043.6 - Date of filing.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... CERTAIN OTHER NOTIFICATION REQUIREMENTS General Provisions § 4043.6 Date of filing. (a) Post-Event notice... submission under subpart B of this part was filed with the PBGC. (b) Advance notice and Form 200 Filings.... Subpart C of part 4000 of this chapter provides rules for determining when the PBGC receives a...

  18. 29 CFR 4043.6 - Date of filing.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... CERTAIN OTHER NOTIFICATION REQUIREMENTS General Provisions § 4043.6 Date of filing. (a) Post-Event notice... submission under subpart B of this part was filed with the PBGC. (b) Advance notice and Form 200 Filings.... Subpart C of part 4000 of this chapter provides rules for determining when the PBGC receives a...

  19. 7 CFR 652.41 - Effect of filing deadlines.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Effect of filing deadlines. A technical service provider's failure to meet the filing deadlines under... 7 Agriculture 6 2011-01-01 2011-01-01 false Effect of filing deadlines. 652.41 Section 652.41 Agriculture Regulations of the Department of Agriculture (Continued) NATURAL RESOURCES CONSERVATION...

  20. 16 CFR 1702.19 - Effect of filing petition.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Effect of filing petition. 1702.19 Section... AND REQUIREMENTS § 1702.19 Effect of filing petition. The filing of a petition for exemption under this part 1702 shall not have the effect of staying the regulation from which the exemption is...