Science.gov

Sample records for medium-voltage dvr-theoretical investigations

  1. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Protection of low- and medium-voltage three... WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.901 Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits...

  2. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Protection of low- and medium-voltage three... WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.901 Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits...

  3. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Protection of low- and medium-voltage three... WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.901 Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits...

  4. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Protection of low- and medium-voltage three... WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.901 Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits...

  5. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Protection of low- and medium-voltage three... WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.901 Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits...

  6. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Design of trailing cables for medium-voltage... Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground...

  7. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Design of trailing cables for medium-voltage... Medium-Voltage Alternating Current Circuits 75.907 Design of trailing cables for medium-voltage circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground...

  8. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Design of trailing cables for medium-voltage... Medium-Voltage Alternating Current Circuits 75.907 Design of trailing cables for medium-voltage circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground...

  9. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Design of trailing cables for medium-voltage... Medium-Voltage Alternating Current Circuits 75.907 Design of trailing cables for medium-voltage circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground...

  10. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Design of trailing cables for medium-voltage... Medium-Voltage Alternating Current Circuits 75.907 Design of trailing cables for medium-voltage circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground...

  11. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Low- and medium-voltage ground check monitor... OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor circuits. On and after September 30, 1971, three-phase low-...

  12. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Low- and medium-voltage ground check monitor... OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor circuits. On and after September 30, 1971, three-phase low-...

  13. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Low- and medium-voltage ground check monitor... OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor circuits. On and after September 30, 1971, three-phase low-...

  14. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Low- and medium-voltage ground check monitor... OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor circuits. On and after September 30, 1971, three-phase low-...

  15. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Low- and medium-voltage ground check monitor... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check...

  16. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Low- and medium-voltage ground check monitor... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check...

  17. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Low- and medium-voltage ground check monitor... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check...

  18. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Low- and medium-voltage ground check monitor... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check...

  19. Preventive maintenance basis: Volume 2 -- Medium voltage switchgear. Final report

    SciTech Connect

    Worledge, D.; Hinchcliffe, G.

    1997-07-01

    US nuclear power plants are implementing preventive maintenance (PM) tasks with little documented basis beyond fundamental vendor information to support the tasks or their intervals. The Preventive Maintenance Basis project provides utilities with the technical basis for PM tasks and task intervals associated with 40 specific components such as valves, electric motors, pumps, and HVAC equipment. This document provides a program of preventive maintenance tasks suitable for application to Medium Voltage Switchgear (1kV to 15kV). The PM tasks that are recommended provide a cost-effective way to intercept the causes and mechanisms that lead to degradation and failure. They can be used in conjunction with material from other sources, to develop a complete PM program or to improve an existing program.

  20. 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Low- and medium-voltage circuits serving... Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers. Low- and medium-voltage...

  1. 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Low- and medium-voltage circuits serving... Medium-Voltage Alternating Current Circuits 77.900 Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers. Low- and medium-voltage...

  2. Commercialization of Medium Voltage HTS Triax TM Cable Systems

    SciTech Connect

    Knoll, David

    2012-12-31

    The original project scope that was established in 2007 aimed to install a 1,700 meter (1.1 mile) medium voltage HTS Triax{TM} cable system into the utility grid in New Orleans, LA. In 2010, however, the utility partner withdrew from the project, so the 1,700 meter cable installation was cancelled and the scope of work was reduced. The work then concentrated on the specific barriers to commercialization of HTS cable technology. The modified scope included long-length HTS cable design and testing, high voltage factory test development, optimized cooling system development, and HTS cable life-cycle analysis. In 2012, Southwire again analyzed the market for HTS cables and deemed the near term market acceptance to be low. The scope of work was further reduced to the completion of tasks already started and to testing of the existing HTS cable system in Columbus, OH. The work completed under the project included: • Long-length cable modeling and analysis • HTS wire evaluation and testing • Cable testing for AC losses • Optimized cooling system design • Life cycle testing of the HTS cable in Columbus, OH • Project management. The 200 meter long HTS Triax{TM} cable in Columbus, OH was incorporated into the project under the initial scope changes as a test bed for life cycle testing as well as the site for an optimized HTS cable cooling system. The Columbus cable utilizes the HTS TriaxTM design, so it provided an economical tool for these of the project tasks.

  3. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Low- and medium-voltage ground check monitor circuits. 75.902 Section 75.902 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current...

  4. 30 CFR 75.900 - Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Low- and medium-voltage circuits serving three... STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.900 Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

  5. 30 CFR 75.900 - Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Low- and medium-voltage circuits serving three... STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits 75.900 Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

  6. 30 CFR 75.900 - Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Low- and medium-voltage circuits serving three... STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits 75.900 Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

  7. Considerations for ground fault protection in medium-voltage industrial and cogeneration systems

    SciTech Connect

    Love, D.J.; Hashemi, N.

    1988-07-01

    Industrial plants utilize medium-voltage systems for in-plant distribution of purchased and cogenerated electrical energy. During the planning stage, system protection is generally specified, including the type of source neutral grounding and ground fault protection. Where medium-voltage systems have expanded, circuit-breaker interrupting ratings have also been increased. Accordingly, grounding consideration should be reviewed, particularly because charging and/or ground fault current values have also increased. The typical methods for grounding of medium-voltage neutral systems - high resistance, low resistance, and ungrounded, as well as methods used to detect the presence of a ground fault - are reviewed. Also, the effects of charging current and how the ground fault protection method could affect conductor ratings are analyzed.

  8. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Low- and medium-voltage ground check monitor circuits. 77.902 Section 77.902 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Low-...

  9. 30 CFR 75.900 - Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers. Low- and medium-voltage power circuits serving three-phase alternating current equipment shall be...-phase alternating current equipment; circuit breakers. 75.900 Section 75.900 Mineral Resources...

  10. 30 CFR 75.900 - Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers. Low- and medium-voltage power circuits serving three-phase alternating current equipment shall be...-phase alternating current equipment; circuit breakers. 75.900 Section 75.900 Mineral Resources...

  11. Transient recovery voltage considerations in the application of medium voltage circuit breakers

    SciTech Connect

    Swindler, D.L.; Schwartz, P.; Hamer, P.S.; Lambert, S.R.

    1995-12-31

    Medium Voltage Circuit Breakers can fail to interrupt 3-phase fault currents when power systems have Transient Recovery Voltage (TRV) characteristics which exceed the rating of the circuit breaker. This paper examines the application of 13.8kV generation and load switchgear for an oil refinery in which circuit parameters as originally designed would have exceeded the 13.8kV circuit breakers TRV ratings had corrective measures not been taken. This paper illustrates this case and discusses the basis of TRV, how TRV is assessed, and alternative actions taken to bring circuits to within the 13.8 kV circuit breaker ratings.

  12. A comparison of low voltage IGBTs vs. medium voltage IGCTs for hydraulic turbine generator applications

    SciTech Connect

    LeGoy, P.R.

    1999-11-01

    Variable speed hydraulic turbine power generation has become a useful tool in the chemical processing industry. The technology that preceded and led to the use of variable speed hydraulic turbines was Variable Speed Constant Frequency (VSCF) drives for power generation. The current state of the art in the VSCF technology is the Insulated Gate Bipolar Transistor (IGBT), voltage source, Pulse Width Modulation (PWM) drive. A new PWM switch has been created. The new switch is the Integrated Gate-Commutated Thyristor (IGCT), PWM device. The drives produced with this technology are current source therefore the operational voltages of the drives are easily configured for medium voltage range. Medium voltage power makes the new drives desirable because of the size of the generators. A common power range for variable speed Hydraulic Power Generation is 1MW and applications for the chemical processing industry have a trend toward higher powers. For this type generator: if the operational voltage falls below 2300V the size of the generator becomes too large, bulky and expensive. Windings are no longer wires; they become bussbars. The current solution to the voltage problem is to include a transformer in the generator/drive connection.

  13. NEMO medium voltage converter factory acceptance, operational and final integration tests

    NASA Astrophysics Data System (ADS)

    Cocimano, Rosanna; NEMO Collaboration

    2011-01-01

    The NEMO Collaboration, as part of the KM3NeT EU-funded consortium, is developing technical solutions for the construction of a cubic-kilometer scale neutrino telescope in the Mediterranean sea several kilometers below the sea level and far from the shore. In this framework, after years of design, development, assembly and testing the Alcatel deep sea medium voltage power converter (MVC) is ready for deployment at 100 km from the Capo Passero shore station. The MVC converts the 10 kV to an instrument-friendly 375 V for a 10 kW power. The MVC will be presented with focus on the factory acceptance, operational and final integration tests that recently have been carried out.

  14. Medium voltage (2300/4260 V) adjustable speed drive (ASD) ride-through options and implementation methods. Final report

    SciTech Connect

    Jouanne, A. von; Enjeti, P.

    1998-11-01

    Adjustable speed drive (ASD) ride-through issues have caused increased concerns due to the susceptibility of drives to power disturbances and the costly results of process disruptions. This study assesses ride-through alternatives for medium voltage applications for several common manufacturers` topologies. This report will help industries and the utilities serving them determine appropriate medium voltage ride-through approaches to serve their applications. The application of medium voltage drives is increasing due to increased reliability, energy efficiency, and improved process control. However, medium voltage drives are susceptible to voltage disturbances such as sags, swells, transients, and momentary outages. According to survey reports, voltage sags of 10--30% below nominal for 3 to 30 cycles account for the majority of power system disturbances. Medium voltage drives tend to experience ride-through problems during voltage sags below 85% of rated voltage for more than one cycle. Depending on the application and the characteristics of the disturbance, the drive-controlled process may be momentarily interrupted or permanently tripped out. Either outcome can result in a significant loss in revenue and costly down time.

  15. 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... portable or mobile three-phase alternating current equipment; circuit breakers. 77.900 Section 77.900... mobile three-phase alternating current equipment; circuit breakers. Low- and medium-voltage circuits supplying power to portable or mobile three-phase alternating current equipment shall be protected...

  16. 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... portable or mobile three-phase alternating current equipment; circuit breakers. 77.900 Section 77.900... mobile three-phase alternating current equipment; circuit breakers. Low- and medium-voltage circuits supplying power to portable or mobile three-phase alternating current equipment shall be protected...

  17. 30 CFR 77.900 - Low- and medium-voltage circuits serving portable or mobile three-phase alternating current...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... portable or mobile three-phase alternating current equipment; circuit breakers. 77.900 Section 77.900... mobile three-phase alternating current equipment; circuit breakers. Low- and medium-voltage circuits supplying power to portable or mobile three-phase alternating current equipment shall be protected...

  18. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Protection of low- and medium-voltage three-phase circuits used underground. 75.901 Section 75.901 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground Low- and...

  19. Medium voltage breaker rehabilitation: A life-cycle cost analysis of replacement, retrofit and interrupter technology options

    SciTech Connect

    Rinck, C.A.

    1995-12-31

    Upgrading of obsolete, medium voltage, air-magnetic, metal-clad switchgear to vacuum or SF{sub 6} circuit breakers may be accomplished by replacement or retrofit. This paper represents a case study for upgrading the Station Service switchgear at The Dalles Lock & Dam. The life-cycle costs associated with the options of breaker replacement and retrofit, as well as costs resulting from the choice of interrupter, will be examined and compared.

  20. A medium frequency transformer with multiple secondary windings for medium voltage converter based wind turbine power generating systems

    NASA Astrophysics Data System (ADS)

    Islam, Md Rabiul; Guo, Youguang; Zhu, Jianguo

    2013-05-01

    Recent advances in magnetic materials have led to the development of compact and light weight, medium and high frequency transformers, which would be a possible solution to reducing the size and weight of wind turbine power generating systems. This paper presents the overall design and analysis of a Metglas amorphous alloy 2605SA1 based medium frequency transformer to generate the isolated balanced multiple DC supplies for medium voltage converter systems. A comprehensive electromagnetic analysis is conducted on the proposed design based on experimental results. The test stand, data analysis, and test results are discussed.

  1. A Transformerless Hybrid Active Filter Capable of Complying with Harmonic Guidelines for Medium-Voltage Motor Drives

    NASA Astrophysics Data System (ADS)

    Kondo, Ryota; Akagi, Hirofumi

    This paper presents a transformerless hybrid active filter that is integrated into medium-voltage adjustable-speed motor drives for fans, pumps, and compressors without regenerative braking. The authors have designed and constructed a three-phase experimental system rated at 400V and 15kW, which is a downscaled model from a feasible 6.6-kV 1-MW motor drive system. This system consists of the hybrid filter connecting a passive filter tuned to the 7th harmonic filter in series with an active filter that is based on a three-level diode-clamped PWM converter, as well as an adjustable-speed motor drive in which a diode rectifier is used as the front end. The hybrid filter is installed on the ac side of the diode rectifier with no line-frequency transformer. The downscaled system has been exclusively tested so as to confirm the overall compensating performance of the hybrid filter and the filtering performance of a switching-ripple filter for mitigating switching-ripple voltages produced by the active filter. Experimental results verify that the hybrid filter achieves harmonic compensation of the source current in all the operating regions from no-load to the rated-load conditions, and that the switching-ripple filter reduces the switching-ripple voltages as expected.

  2. Design and power management of an offshore medium voltage DC microgrid realized through high voltage power electronics technologies and control

    NASA Astrophysics Data System (ADS)

    Grainger, Brandon Michael

    The growth in the electric power industry's portfolio of Direct Current (DC) based generation and loads have captured the attention of many leading research institutions. Opportunities for using DC based systems have been explored in electric ship design and have been a proven, reliable solution for transmitting bulk power onshore and offshore. To integrate many of the renewable resources into our existing AC grid, a number of power conversions through power electronics are required to condition the equipment for direct connection. Within the power conversion stages, there is always a requirement to convert to or from DC. The AC microgrid is a conceptual solution proposed for integrating various types of renewable generation resources. The fundamental microgrid requirements include the capability of operating in islanding mode and/or grid connected modes. The technical challenges associated with microgrids include (1) operation modes and transitions that comply with IEEE1547 without extensive custom engineering and (2) control architecture and communication. The Medium Voltage DC (MVDC) architecture, explored by the University of Pittsburgh, can be visualized as a special type of DC microgrid. This dissertation is multi-faceted, focused on many design aspects of an offshore DC microgrid. The focal points of the discussion are focused on optimized high power, high frequency magnetic material performance in electric machines, transformers, and DC/DC power converters---all components found within offshore, power system architectures. A new controller design based upon model reference control is proposed and shown to stabilize the electric motor drives (modeled as constant power loads), which serve as the largest power consuming entities in the microgrid. The design and simulation of a state-of-the-art multilevel converter for High Voltage DC (HVDC) is discussed and a component sensitivity analysis on fault current peaks is explored. A power management routine is proposed and evaluated as the DC microgrid is disturbed through various mode transitions. Finally, two communication protocols are described for the microgrid---one to minimize communication overhead inside the microgrid and another to provide robust and scalable intra-grid communication. The work presented is supported by Asea Brown Boveri (ABB) Corporate Research Center within the Active Grid Infrastructure program, the Advanced Research Project Agency - Energy (ARPA-E) through the Solar ADEPT program, and Mitsubishi Electric Corporation (MELCO).

  3. Advanced medium-voltage bidirectional dc-dc conversion systems for future electric energy delivery and management systems

    NASA Astrophysics Data System (ADS)

    Fan, Haifeng

    2011-12-01

    The distributed renewable energy generation and utilization are constantly growing, and are expected to be integrated with the conventional grid. The growing pressure for innovative solutions will demand power electronics to take an even larger role in future electric energy delivery and management systems, since power electronics are required for the conversion and control of electric energy by most dispersed generation systems Furthermore, power electronics systems can provide additional intelligent energy management, grid stability and power quality capabilities. Medium-voltage isolated dc-dc converter will become one of the key interfaces for grid components with moderate power ratings. To address the demand of medium voltage (MV) and high power capability for future electric energy delivery and management systems, the power electronics community and industry have been reacting in two different ways: developing semiconductor technology or directly connecting devices in series/parallel to reach higher nominal voltages and currents while maintaining conventional converter topologies; and by developing new converter topologies with traditional semiconductor technology, known as multilevel converters or modular converters. The modular approach uses the well-known, mature, and cheaper power semiconductor devices by adopting new converter topologies. The main advantages of the modular approach include: significant improvement in reliability by introducing desired level of redundancy; standardization of components leading to reduction in manufacturing cost and time; power systems can be easily reconfigured to support varying input-output specifications; and possibly higher efficiency and power density of the overall system. Input-series output-parallel (ISOP) modular configuration is a good choice to realize MV to low voltage (LV) conversion for utility application. However, challenges still remain. First of all, for the high-frequency MV utility application, the low switching loss and conduction loss are must-haves for high efficiency, while bidirectional power flow capability is a must for power management requirement. To address the demand, the phase-shift dual-halfbridge (DHB) is proposed as the constituent module of ISOP configuration for MV application. The proposed ISOP DHB converter employs zero-voltage-switching (ZVS) technique combined with LV MOSFETs to achieve low switching and conduction losses under high frequency operation, and therefore high efficiency and high power density, and bidirectional power flow as well. Secondly, a large load range of high efficiency is desired rather than only a specific load point due to the continuous operation and large load variation range of utility application, which is of high importance because of the rising energy cost. This work proposes a novel DHB converter with an adaptive commutation inductor. By utilizing an adaptive inductor as the main energy transfer element, the output power can be controlled by not only the phase shift but also the commutation inductance, which allows the circulating energy to be optimized for different load conditions to maintain ZVS under light load conditions and minimize additional conduction losses under heavy load conditions as well. As a result, the efficiency at both light and heavy load can be significantly improved compared with the conventional DHB converter, and therefore extended high-efficiency range can be achieved. In addition, current stress of switch devices can be reduced. The theoretical analysis is presented and validated by the experimental results on a 50 kHz, 1 kW dc-dc converter module. Thirdly, input-voltage sharing and output-current sharing are critical to assure the advantages of the ISOP modular configuration. To solve this issue, an identically distributed control scheme is proposed in this work. The proposed control scheme, using only one distributed voltage loop to realize both input-voltage and output-current sharing, provides plug-and-play capability, possible high-level fault tolerance, and easy implementation. Another unique advantage of the proposed ISOP DHB converter is the power rating can be easily extended further by directly connecting multiple ISOP DHB converters in input-parallel-outparallel (IPOP) while no additional control is needed. The proposed control scheme is elaborated using the large-signal average model. Further, the stability of the control schemes is analyzed in terms of the constituent modules' topology as well as the configuration, and then an important fact that the stability of control scheme depends on not only the configuration but also the constituent module topology is first revealed in this work. Finally, the simulation and experimental results of an ISOP DHB converter consisting of three modules are presented to verify the proposed control scheme and the high frequency high efficiency operation.

  4. ENSYSTROB - Design, manufacturing and test of a 3-phase resistive fault current limiter based on coated conductors for medium voltage application

    NASA Astrophysics Data System (ADS)

    Elschner, S.; Kudymow, A.; Brand, J.; Fink, S.; Goldacker, W.; Grilli, F.; Noe, M.; Vojenciak, M.; Hobl, A.; Bludau, M.; Jnke, C.; Krmer, S.; Bock, J.

    2012-11-01

    Within the German project ENSYSTROB a 3-phase resistive fault current limiter for medium voltage applications (12 kV, 533 Arms) was designed, built, tested and installed in the grid for a one years field test. The superconducting modules are made of YBCO coated conductors and replace the modules of an already successfully tested limiter on the basis of BSCCO 2212 bulk material. The components are multifilar spirals equipped with pairs of 12 mm wide YBCO tapes. The single components were characterized with respect to critical current, AC losses and limitation behavior under all possible operation conditions. The finally mounted limiter was successfully tested with respect to high voltage and limitation according to the standards of the customer. It is now installed and operating in its field test location. Finally we give a first comparison of both materials with respect to the different operational aspects.

  5. Low Wind Speed Turbine Project Phase II: The Application of Medium-Voltage Electrical Apparatus to the Class of Variable Speed Multi-Megawatt Low Wind Speed Turbines; 15 June 2004--30 April 2005

    SciTech Connect

    Erdman, W.; Behnke, M.

    2005-11-01

    Kilowatt ratings of modern wind turbines have progressed rapidly from 50 kW to 1,800 kW over the past 25 years, with 3.0- to 7.5-MW turbines expected in the next 5 years. The premise of this study is simple: The rapid growth of wind turbine power ratings and the corresponding growth in turbine electrical generation systems and associated controls are quickly making low-voltage (LV) electrical design approaches cost-ineffective. This report provides design detail and compares the cost of energy (COE) between commercial LV-class wind power machines and emerging medium-voltage (MV)-class multi-megawatt wind technology. The key finding is that a 2.5% reduction in the COE can be achieved by moving from LV to MV systems. This is a conservative estimate, with a 3% to 3.5% reduction believed to be attainable once purchase orders to support a 250-turbine/year production level are placed. This evaluation considers capital costs as well as installation, maintenance, and training requirements for wind turbine maintenance personnel. Subsystems investigated include the generator, pendant cables, variable-speed converter, and padmount transformer with switchgear. Both current-source and voltage-source converter/inverter MV topologies are compared against their low-voltage, voltage-source counterparts at the 3.0-, 5.0-, and 7.5-MW levels.

  6. Preventive maintenance basis: Volume 9 -- Medium voltage electric motors (between 1 kV ad 5 kV). Final report

    SciTech Connect

    Worledge, D.; Hinchcliffe, G.

    1997-07-01

    US nuclear plants are implementing preventive maintenance (PM) tasks with little documented basis beyond fundamental vendor information to support the tasks or their intervals. The Preventive Maintenance Basis project provides utilities with the technical basis for PM tasks and task intervals associated with 40 specific components such as valves, electric motors, pumps, and HVAC equipment. This report provides an overview of the PM Basis project and describes use of the PM Basis database. Volume 9 of the report provides a program of PM tasks suitable for application to medium voltage (between 1kV and 5kV) electric motors in nuclear power plants. The PM tasks that are recommended provide a cost-effective way to intercept the causes and mechanisms that lead to degradation and failure. They can be used, in conjunction with material from other sources, to develop a complete PM program or to improve an existing program. Users of this information will be utility managers, supervisors, craft technicians, and training instructors responsible for developing, optimizing, or fine-tuning PM programs. Reactor Coolant Pumps motors (RCP`s) are not excluded from this report in so far as good PM practices for motors of the appropriate class are concerned. However, the special auxiliary equipment normally associated with RCP`s has not been included. Consequently, this report does not provide a complete PM program for RCP`s. Industry and vendor programs for RCP`s should be consulted for complete definition of RCP motor PM programs.

  7. Submerged Medium Voltage Cable Systems at Nuclear Power Plants. A Review of Research Efforts Relevant to Aging Mechanisms and Condition Monitoring

    SciTech Connect

    Brown, Jason; Bernstein, Robert; White, II, Gregory Von; Glover, Steven F.; Neely, Jason C.; Pena, Gary; Williamson, Kenneth Martin; Zutavern, Fred J.; Gelbard, Fred

    2015-03-01

    In a submerged environment, power cables may experience accelerated insulation degradation due to water - related aging mechanisms . Direct contact with water or moisture intrusion in the cable insulation s ystem has been identified in the literature as a significant aging stressor that can affect performance and lifetime of electric cables . Progressive reduction of the dielectric strength is commonly a result of water treeing which involves the development of permanent hydrophilic structures in the insulation coinciding with the absorption of water into the cable . Water treeing is a phenomenon in which dendritic microvoids are formed in electric cable insulation due to electrochemic al reactions , electromechanical forces , and diffusion of contaminants over time . These reactions are caused by the combined effect s of water presence and high electrical stress es in the material . Water tree growth follow s a tree - like branching pattern , i ncreasing in volume and length over time . Although these cables can be "dried out," water tree degradation , specifically the growth of hydrophilic regions, is believed to be permanent and typically worsens over time. Based on established research , water treeing or water induced damage can occur in a variety of electric cables including XLPE, TR - XLPE and other insulating materials, such as EPR and butyl rubber . Once water trees or water induced damage form, the dielectric strength of an insulation materia l will decrease gradually with time as the water trees grow in length, which could eventually result in failure of the insulating material . Under wet conditions or i n submerged environments , several environmental and operational parameters can influence w ater tree initiation and affect water tree growth . These parameters include voltage cycling, field frequency, temperature, ion concentration and chemistry, type of insula tion material , and the characteristics of its defects. In this effort, a review of academic and industrial literature was performed to identify : 1) findings regarding the degradation mechanisms of submerged cabling and 2) condition monitoring methods that may prove useful in predict ing the remaining lifetime of submerged medium voltage p ower cables . The re search was conducted by a multi - disciplinary team , and s ources includ ed official NRC reports, n ational l aboratory reports , IEEE standards, conference and journal proceedings , magazine articles , PhD dissertations , and discussions with experts . The purpose of this work was to establish the current state - of - the - art in material degradation modeling and cable condition monitoring techniques and to identify research gaps . Subsequently, future areas of focus are recommended to address these research gaps and thus strengthen the efficacy of the NRC's developing cable condition monitoring program . Results of this literature review and details of the test ing recommendations are presented in this report . FOREWORD To ensure the safe, re liable, and cost - effective long - term operation of nuclear power plants, many systems, structures, and components must be continuously evaluated. The Nuclear Regulatory Commission (NRC) has identified that cables in submerged environments are of concern, particularly as plants are seeking license renewal. To date, there is a lack of consensus on aging and degradation mechanisms even though the area of submerged cables has been extensively studied. Consequently, the ability to make lifetime predictions for submerged cable does not yet exist. The NRC has engaged Sandia National Laboratories (SNL) to lead a coordinated effort to help elucidate the aging and degradation of cables in submerged environments by collaborating with cable manufacturers, utilities, universities, and other government agencies. A team of SNL experts was assembled from the laboratories including electrical condition monitoring, mat erial science, polymer degradation, plasma physics, nuclear systems, and statistics. An objective of this research program is to perform a l iterature r eview to gather a body of knowledge on prior research projects, technical papers, and literature related to cable degradation in a submerged environment. In addition, the information gathered from the literature review will be employed to gain insights for developing an aging coefficient, and to determine which condition monitoring techniques are capable of tracking cable degradation in a submerged environment. Moreover, the information gathered from the l iterature r eview will also be used to determine which approach or approaches are best suited to develop test methods for accelerated aging and condition m onitoring of medium voltage cables. In summary of this initial effort, s ignificant work has been performed on submerged cable insulation degradation; however, there is a lack of uniform theories and acceptance of chemical and physical pathways. This lack of fundamental understanding is coupled with the inability to make predictive statements about material performance in wet or submerged environments. S elect condition monitoring methods known to the industry are discussed in this report and a dditional co ndition monitoring methods were added in this effort based on recommendations from the Nuclear Energy Standards Coordinating Collaborative and available literature. This NUREG review provides additional clarity on the use of condition monitoring methods t o detect water - related damage to medium voltage cable and new methods and approaches proposed in academia and industry. In order t o ensure continued improvement in the efficacy of a cable condition monitoring program, continued research and development (R&D) efforts are necessary. R&D efforts should complement operations, iteratively improving condition monitoring policies, procedures and outcomes. Ideally, field and laboratory data enable improved understanding of material science which in turn inform s the development of new or improved condition monitoring methods and lifetime models. Finally, these improved methods and models aid in the refinement of condition monitoring policies and procedures.

  8. 2.3-MW Medium-Voltage, Three-Level Wind Energy Inverter Applying a Unique Bus Structure and 4.5-kV Si/SiC Hybrid Isolated Power Modules: Preprint

    SciTech Connect

    Erdman, W.; Keller, J.; Grider, D.; VanBrunt, E.

    2014-11-01

    A high-efficiency, 2.3-MW, medium-voltage, three-level inverter utilizing 4.5-kV Si/SiC (silicon carbide) hybrid modules for wind energy applications is discussed. The inverter addresses recent trends in siting the inverter within the base of multimegawatt turbine towers. A simplified split, three-layer laminated bus structure that maintains low parasitic inductances is introduced along with a low-voltage, high-current test method for determining these inductances. Feed-thru bushings, edge fill methods, and other design features of the laminated bus structure provide voltage isolation that is consistent with the 10.4-kV module isolation levels. Inverter efficiency improvement is a result of the (essential) elimination of the reverse recovery charge present in 4.5-kV Si PIN diodes, which can produce a significant reduction in diode turn-off losses as well as insulated-gate bipolar transistor (IGBT) turn-on losses. The hybrid modules are supplied in industry-standard 140 mm x 130 mm and 190 mm x 130 mm packages to demonstrate direct module substitution into existing inverter designs. A focus on laminated bus/capacitor-bank/module subassembly level switching performance is presented.

  9. Architecture for a High-to-Medium-Voltage Power Converter

    NASA Technical Reports Server (NTRS)

    Vorpenian, Vatche

    2008-01-01

    A power converter now undergoing development is required to operate at a DC input potential ranging between 5.5 and 10 kV and a DC output potential of 400 V at a current up to 25 A. This power converter is also required to be sufficiently compact and reliable to fit and operate within the confines of a high-pressure case to be lowered to several miles (approx.5 km) below the surface of the ocean. The architecture chosen to satisfy these requirements calls for a series/ parallel arrangement of 48 high-frequency, pulse-width-modulation (PWM), transformer-isolation DC-to-DC power converter blocks. The input sides of the converter blocks would be connected in series so that the input potential would be divided among them, each of them being exposed to an input potential of no more than 10 kV/48 . 210 V. The series connection of inputs would also enforce a requirement that all the converter blocks operate at the same input current. The outputs of the converter blocks would be connected in a matrix comprising 6 parallel legs, each leg being a cascade of eight outputs wired in series (see figure). All the converter blocks would be identical within the tolerances of the values of their components. A single voltage feedback loop would regulate the output potential. All the converter blocks would be driven by the same PWM waveform generated by this feedback loop. The power transformer of each converter block would have a unity turns ratio and would be capable of withstanding as much as 10 kVDC between its primary and secondary windings. (Although, in general, the turns ratio could be different from unity, the simplest construction for minimizing leakage and maximizing breakdown voltage is attained at a turns ratio of unity.)

  10. An Approach to the Lightning Overvoltage Protection of Medium Voltage Lines in Severe Lightning Areas

    SciTech Connect

    Omidiora, M. A.; Lehtonen, M.

    2008-05-08

    This paper deals with the effect of shield wires on lightning overvoltage reduction and the energy relief of MOV (Metal Oxide Varistor) arresters from direct strokes to distribution lines. The subject of discussion is the enhancement of lightning protection in Finnish distribution networks where lightning is most severe. The true index of lightning severity in these areas is based on the ground flash densities and return stroke data collected from the Finnish meteorological institute. The presented test case is the IEEE 34-node test feeder injected with multiple lightning strokes and simulated with the Alternative Transients Program/Electromagnetic Transients program (ATP/EMTP). The response of the distribution line to lightning strokes was modeled with three different cases: no protection, protection with surge arresters and protection with a combination of shield wire and arresters. Simulations were made to compare the resulting overvoltages on the line for all the analyzed cases.

  11. Advances in multiconductor jointing systems for medium voltage solid dielectric cables using heat-shrinkable components

    SciTech Connect

    Clarke, G.J.; Katz, L.H.

    1982-11-01

    Heat-shrinkable polymeric materials are now being used to reinsulate joints in single- and three-conductor armored cables, particularly on cables used by industry for 15-kV distribution systems. A theoretical evaluation is given of the electrical stress control in the joint insulation system and the development of a joint for three-conductor cables, which eliminates the need for complex fittings. A test program is reviewed and the results reported.

  12. New application flexibility for medium-voltage current-limiting fuses

    SciTech Connect

    Leach, J.G.

    1985-07-01

    Developments in the analysis of current-limiting fuse operation have resulted in new designs of fuse becoming available. These designs are compared to earlier types, and new methods of construction are discussed. These include the use of nonsilver fuse elements and new fuse filler techniques. New methods of testing motor circuit fuses are explained, and fuse application techniques in general are covered. The area of transformer through-fault protection, to be addressed in a forthcoming ANSI Guide, is also considered. A brief discussion of future developments in fuse technology is also given.

  13. Continuous On-Line Partial Discharge Monitor for Medium-Voltage Cable Feasibility Study

    SciTech Connect

    M. Fenger

    2005-11-30

    Partial discharge (PD) assessment is one method of detecting cable conditions that predict approaching failure. While not all PDs in cable systems lead to failure, PDs within the cable's insulation can lead to relatively rapid failure. Accordingly, on-line PD assessment may be more useful than periodic PD assessment because the period of partial discharging at the end of a cable's life may be quite short. The research described in this report studied the feasibility of developing an on-line PD monitor for assessing both shielded and unshielded MV cables.

  14. Accelerated cable life testing of EPR-insulated medium voltage distribution cables

    SciTech Connect

    Walton, M.D. ); Bernstein, B.S. ); Smith, J.T. III ); Thue, W.A. , Stuart, FL ); Groeger, J.H. )

    1994-07-01

    This paper presents results aimed at developing a reliable accelerated aging tank test for EPR-insulated cables. Aging was performed at 2 to 4 times rated voltage on load cycling to temperatures of 45 C, 60 C, 75 C, and 90 C at the conductor with water in the conductor strands and outside the cable. Results show that cable failure is more rapid at the highest electrical stress and lowest conductor load cycle temperature. Cables aged at higher temperatures and various levels of electrical stress rarely failed and retained in excess of 40% of their original breakdown strength after 1,500+ days of aging. Aging performed at 90 C load cycle temperature and 4 times rated voltage with air on the outside and water at the conductor of the cable showed more rapid loss of life than with water outside. Results indicate the optimum aging conditions for EPR-insulated cables in the accelerated cable life test (ACLT) differ significantly from those previously observed for XLPE-insulated cables, and that the appropriate test methodology for EPR-insulated cables requires additional study.

  15. Development, Testing and Installation of a Superconducting Fault Current Limiter for Medium Voltage Distribution Networks

    NASA Astrophysics Data System (ADS)

    Martini, Luciano; Bocchi, Marco; Ascade, Massimo; Valzasina, Angelo; Rossi, Valerio; Angeli, Giuliano; Ravetta, Cesare

    Since 2009 Ricerca sul Sistema Energetico (RSE S.p.A.) has been involved in the design of resistive-type Superconducting Fault Current Limiter (SFCL) for MV applications to be installed in the A2A Reti Elettriche S.p.A distribution grid in the Milano area. The project started with simulations, design and testing activities for a singlephase device; in this paper we report on the successive step, which is concerned with developing, testing and installation at the hosting utility of the final three-phase SFCL prototype. The result of this research activity is a resistive-type 9 kV/3.4 MVA SFCL device, based on first generation (1G) BSCCO tapes, developed by RSE in the framework of a R&D national project. Owing to the positive test results of partial discharge, dielectric and shortcircuit results the three-phase SFCL device is being to be installed in the A2A distribution grid in the Milano area and it is going to be soon energized starting a one-year long field-testing activity.

  16. Utility-Scale Silicon Carbide Semiconductor: Monolithic Silicon Carbide Anode Switched Thyristor for Medium Voltage Power Conversion

    SciTech Connect

    2010-09-01

    ADEPT Project: GeneSiC is developing an advanced silicon-carbide (SiC)-based semiconductor called an anode-switched thyristor. This low-cost, compact SiC semiconductor conducts higher levels of electrical energy with better precision than traditional silicon semiconductors. This efficiency will enable a dramatic reduction in the size, weight, and volume of the power converters and electronic devices it's used in.GeneSiC is developing its SiC-based semiconductor for utility-scale power converters. Traditional silicon semiconductors can't process the high voltages that utility-scale power distribution requires, and they must be stacked in complicated circuits that require bulky insulation and cooling hardware. GeneSiC's semiconductors are well suited for high-power applications like large-scale renewable wind and solar energy installations.

  17. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... diesel engine powering the electrical generator must be approved under 30 CFR part 7, subpart E. (2) A... of each transformer to trip and shut down the diesel engine when a phase-to-frame fault of not more... interrupting device(s) to trip and cause shutdown of the diesel engine when a phase-to-frame fault occurs....

  18. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... diesel engine powering the electrical generator must be approved under 30 CFR part 7, subpart E. (2) A... of each transformer to trip and shut down the diesel engine when a phase-to-frame fault of not more... interrupting device(s) to trip and cause shutdown of the diesel engine when a phase-to-frame fault occurs....

  19. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... diesel engine powering the electrical generator must be approved under 30 CFR part 7, subpart E. (2) A... of each transformer to trip and shut down the diesel engine when a phase-to-frame fault of not more... interrupting device(s) to trip and cause shutdown of the diesel engine when a phase-to-frame fault occurs....

  20. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... diesel engine powering the electrical generator must be approved under 30 CFR part 7, subpart E. (2) A... of each transformer to trip and shut down the diesel engine when a phase-to-frame fault of not more... interrupting device(s) to trip and cause shutdown of the diesel engine when a phase-to-frame fault occurs....

  1. Solid Insulated Switchgear and Investigation of its Mechanical and Electrical Reliability

    NASA Astrophysics Data System (ADS)

    Sato, Junichi; Kinoshita, Susumu; Sakaguchi, Osamu; Miyagawa, Masaru; Shimizu, Toshio; Homma, Mitsutaka

    SF6 gas is applied widely to medium voltage switchgear because of its high insulation reliability and down-sizing ability. However, SF6 gas was placed on the list of greenhouse gases under the Kyoto Protocol in 1997. Since then, the investigation and development concerning SF6-free or less has carried out activity. Therefore, we paid attention to the solid material which has higher dielectric strength than SF6, and we have newly developed solid insulated switchgear (SIS) achieved by molding all main circuit. A new epoxy casting material is applied, which contains a great deal of spherical silica and a small amount of rubber particles. This new material has the high mechanical strength, high thermal resistance, high toughness, and also high dielectric strength because of directly molding the vacuum bottle, down-sizing and reliability. This paper describes about the technology of a new epoxy casting material which achieves the SIS. In addition, the mechanical and electrical reliability test of SIS applied a new epoxy resin are carried out, and effectiveness of the development material and the mechanical and electrical reliability of SIS are verified.

  2. Watershed Investigations

    ERIC Educational Resources Information Center

    Bodzin, Alec; Shive, Louise

    2004-01-01

    Investigating local watersheds presents middle school students with authentic opportunities to engage in inquiry and address questions about their immediate environment. Investigation activities promote learning in an investigations interdisciplinary context as students explore relationships among chemical, biological, physical, geological, and

  3. CRN Investigators

    Cancer.gov

    Skip to Main Content Home Contact Us Search CRN Investigators Executive Committee Members Steering Committee Members Executive Committee Members Lawrence H. Kushi, ScD Division of Research, Kaiser Permanente Northern California CRN Principal Investigator,

  4. Quaternary investigation

    SciTech Connect

    Stieve, A.

    1991-05-15

    The primary purpose of the Quaternary investigation is to provide information on the location and age of Quaternary deposits for use in evaluating the presence or absence of neotectonic deformation or paleoliquefaction features within the Savannah River Site (SRS) region. The investigation will provide a basis for evaluating the potential for capable faults and associated deformation in the SRS vicinity. Particular attention will be paid to the Pen Branch fault.

  5. Investigation Organizer

    NASA Technical Reports Server (NTRS)

    Panontin, Tina; Carvalho, Robert; Keller, Richard

    2004-01-01

    Contents include the folloving:Overview of the Application; Input Data; Analytical Process; Tool's Output; and Application of the Results of the Analysis.The tool enables the first element through a Web-based application that can be accessed by distributed teams to store and retrieve any type of digital investigation material in a secure environment. The second is accomplished by making the relationships between information explicit through the use of a semantic network-a structure that literally allows an investigator or team to "connect -the-dots." The third element, the significance of the correlated information, is established through causality and consistency tests using a number of different methods embedded within the tool, including fault trees, event sequences, and other accident models. And finally, the evidence gathered and structured within the tool can be directly, electronically archived to preserve the evidence and investigative reasoning.

  6. Laboratory investigations

    SciTech Connect

    Not Available

    1984-09-01

    The primary objectives were to examine the site-specific physical, chemical, and biological factors that impact construction, durability and performance of the proposed 5-MW (sub e) solar pond system at the Salton Sea. The interactions of the water, salt, and soil of the site and on material compatibility were examined. Potential interactions of the water/brine and soil are particularly important because the pond will utilize the naturally occurring clays as a bottom seal. Although there is a considerable and growing solar pond literature, little written information deals with the important site-specific investigations of water, salt, and soil. Therefore, technical effort was directed toward identifying the factors that should be investigated and determining methods of investigation. As a result, a by-product was the development of an approach for site-specific investigations and some specific methodologies. This development should continue in order to establish a generic approach for evaluating the suitability of any site for the construction of large-scale solar ponds.

  7. Investigator Perspectives

    NASA Technical Reports Server (NTRS)

    Mendillo, Michael

    1991-01-01

    A detailed presentation is given in the form of viewgraphs on principal investigator requirements ranging from simple to complex payloads. It is stated that the program was very important to the US science community, and that there was already concern that its funding was under stress, impacting the number of missions flown, down from around 44 to 25 or so. It is also stated that the program needs more help at NASA HQ.

  8. Investigative negotiation.

    PubMed

    Malhotra, Deepak; Bazerman, Max H

    2007-09-01

    Negotiators often fail to achieve results because they channel too much effort into selling their own position and too little into understanding the other party's perspective. To get the best deal -or, sometimes, any deal at al--egotiators need to think like detectives, digging for information about why the other side wants what it does. This investigative approach entails a mind-set and a methodology, say Harvard Business School professors Malhotra and Bazerman. Inaccurate assumptions about the other side's motivations can lead negotiators to propose solutions to the wrong problems, needlessly give away value, or derail deals altogether. Consider, for example, the pharmaceutical company that deadlocked with a supplier over the issue of exclusivity in an ingredient purchase. Believing it was a ploy to raise the price, the drugmaker upped its offer--unsuccessfully. In fact, the supplier was balking because a relative's company needed a small amount of the ingredient to make a local product. Once the real motivation surfaced, a compromise quickly followed. Understanding the other side's motives and goals is the first principle of investigative negotiation. The second is to figure out what constraints the other party faces. Often when your counterpart's behavior appears unreasonable, his hands are tied somehow, and you can reach agreement by helping overcome those limitations. The third is to view onerous demands as a window into what the other party prizes most--and use that information to create opportunities. The fourth is to look for common ground; even fierce competitors may have complementary interests that lead to creative agreements. Finally, if a deal appears lost, stay at the table and keep trying to learn more. Even if you don't win, you can gain insights into a customer's future needs, the interests of similar customers, or the strategies of competitors. PMID:17886485

  9. Success with Investigations.

    ERIC Educational Resources Information Center

    Chin, Christine

    2003-01-01

    Describes strategies for facilitating student science investigations and alleviating common weaknesses associated with student performance. Includes checklist criteria for performance on investigative tasks and an example of an assessment rubric for the investigation of the effect of temperature on enzyme activity. (Author/KHR)

  10. Magsat scientific investigations

    NASA Technical Reports Server (NTRS)

    Langel, R. A.

    1980-01-01

    The Magsat spacecraft is providing the first global, vector magnetic survey. Investigations using the Magsat data are being carried out by scientists at NASA's Goddard Space Flight Center, at the U.S. Geological Survey of the Department of the Interior and by 32 selected investigators. Nineteen of the investigators are from the United States and 13 are from various foreign nations. The investigations described fall into four categories; (1) geomagnetic field modeling; (2) crustal magnetic anomaly studies; (3) investigations of the inner Earth: the core, mantle and core-mantle interface; and (4) studies of external current systems.

  11. Investigating Encrypted Material

    NASA Astrophysics Data System (ADS)

    McGrath, Niall; Gladyshev, Pavel; Kechadi, Tahar; Carthy, Joe

    When encrypted material is discovered during a digital investigation and the investigator cannot decrypt the material then s/he is faced with the problem of how to determine the evidential value of the material. This research is proposing a methodology of extracting probative value from the encrypted file of a hybrid cryptosystem. The methodology also incorporates a technique for locating the original plaintext file. Since child pornography (KP) images and terrorist related information (TI) are transmitted in encrypted format the digital investigator must ask the question Cui Bono? - who benefits or who is the recipient? By doing this the scope of the digital investigation can be extended to reveal the intended recipient.

  12. Designing Online Mathematical Investigation

    ERIC Educational Resources Information Center

    Gadanidis, George; Sedig, Kamran; Liang, Hai-Ning

    2004-01-01

    In this paper we focus on interactive visualizations that support mathematical investigation. In the context of analyzing and redesigning an interactive visualization from the National Council of Teachers of Mathematics's (NCTM's) Illuminations Web site, we consider two interrelated issues: (1) how the pedagogy of mathematical investigation may be…

  13. Sea Anemone: Investigations.

    ERIC Educational Resources Information Center

    Hunt, John D.

    1982-01-01

    Several investigations can be undertaken with live sea anemones. A sea anemone's feeding response, fighting power, color, and symbiotic relationships to other invertebrates (such as a marine hermit crab) can be investigated in the high school classroom. Background information and laboratory procedures are provided. (Author/JN)

  14. Soil Compaction Investigation.

    ERIC Educational Resources Information Center

    Turski, Mark P.

    1988-01-01

    Describes a lab investigation designed to introduce students to soil compaction and help them to learn to design and adapt procedures that scientists use when they plan and conduct controlled investigations. Provided are objectives, a list of materials, procedures, and a sample student handout. (CW)

  15. Investigations in Martian Sedimentology

    NASA Technical Reports Server (NTRS)

    Moore, Jeffrey M.

    1998-01-01

    The purpose of this report is to investigate and discuss the Martian surface. This report was done in specific tasks. The tasks were: characterization of Martian fluids and chemical sediments; mass wasting and ground collapse in terrains of volatile-rich deposits; Mars Rover terrestrial field investigations; Mars Pathfinder operations support; and Martian subsurface water instrument.

  16. Designing Online Mathematical Investigation

    ERIC Educational Resources Information Center

    Gadanidis, George; Sedig, Kamran; Liang, Hai-Ning

    2004-01-01

    In this paper we focus on interactive visualizations that support mathematical investigation. In the context of analyzing and redesigning an interactive visualization from the National Council of Teachers of Mathematics's (NCTM's) Illuminations Web site, we consider two interrelated issues: (1) how the pedagogy of mathematical investigation may be

  17. Vamistor resistor investigation

    NASA Technical Reports Server (NTRS)

    1973-01-01

    Results are presented of the failure investigation conducted on resistors produced by the Vamistor Divison, Wagner Electric Corporation. This failure investigation included; failure analyses, chemical and metallurgical analyses, failure mechanism studies, seal leak analyses, and nondestructive stress tests. The data, information, conclusions, and recommendation can be helpful in assessing current usage of these resistors.

  18. Crime Scene Investigation.

    ERIC Educational Resources Information Center

    Harris, Barbara; Kohlmeier, Kris; Kiel, Robert D.

    Casting students in grades 5 through 12 in the roles of reporters, lawyers, and detectives at the scene of a crime, this interdisciplinary activity involves participants in the intrigue and drama of crime investigation. Using a hands-on, step-by-step approach, students work in teams to investigate a crime and solve a mystery. Through role-playing

  19. Microgravity silicon zoning investigation

    NASA Technical Reports Server (NTRS)

    Kern, E. L.; Gill, G. L., Jr.

    1985-01-01

    The flow instabilities in floating zones of silicon were investigated and methods for investigation of these instabilities in microgravity were defined. Three principal tasks were involved: (1) characterization of the float zone in small diameter rods; (2) investigation of melt flow instabilities in circular melts in silicon disks; and (3) the development of a prototype of an apparatus that could be used in near term space experiments to investigate flow instabilities in a molten zone. It is shown that in a resistance heated zoner with 4 to 7 mm diameter silicon rods that the critical Marangoni number is about 1480 compared to a predicted value of 14 indicative that viable space experiments might be performed. The prototype float zone apparatus is built and specifications are prepared for a flight zoner should a decision be reached to proceed with a space flight experimental investigation.

  20. Investigation of outbreaks: epidemiology.

    PubMed

    Joseph, Carol

    2013-01-01

    Outbreaks of Legionnaires' disease create high levels of public anxiety and media interest and inevitably consume a great deal of public health resources. Investigations should begin as early as possible in order to rapidly identify suspected sources of infection, control the outbreak and prevent further cases occurring. The investigations should be coordinated by an outbreak control team who work collaboratively within local/national/international public health guidelines and with clear terms of reference. The actions carried out by epidemiologists when investigating community-, hospital-, or travel-associated outbreaks are comprehensively outlined in this chapter. The microbiological and environmental actions that complement this work are discussed in the accompanying chapters. PMID:23150390

  1. Utility-Scale Solar Power Converter: Agile Direct Grid Connect Medium Voltage 4.7-13.8 kV Power Converter for PV Applications Utilizing Wide Band Gap Devices

    SciTech Connect

    2012-01-25

    Solar ADEPT Project: Satcon is developing a compact, lightweight power conversion device that is capable of taking utility-scale solar power and outputting it directly into the electric utility grid at distribution voltage levels—eliminating the need for large transformers. Transformers “step up” the voltage of the power that is generated by a solar power system so it can be efficiently transported through transmission lines and eventually “stepped down” to usable voltages before it enters homes and businesses. Power companies step up the voltage because less electricity is lost along transmission lines when the voltage is high and current is low. Satcon’s new power conversion devices will eliminate these heavy transformers and connect a utility-scale solar power system directly to the grid. Satcon’s modular devices are designed to ensure reliability—if one device fails it can be bypassed and the system can continue to run.

  2. Student Investigations Using Chromatography

    ERIC Educational Resources Information Center

    Witters, Weldon L.; Bush, Kenneth

    1970-01-01

    Three different problems are given for student investigation in determining amino acid compositions, floral pigments, and water soluble amino acids by using the techniques of Roll Chromotography, DISC Chromotography, Thin Layer, and Paper Chromotography. (BR)

  3. Access to Investigational Drugs

    MedlinePLUS

    ... drugs include mechanisms such as an expanded access protocol or a special or compassionate exception. The sponsor ... Expanded Access The purpose of an expanded access protocol is to make investigational drugs that have significant ...

  4. WETLAND DETECTION METHODS INVESTIGATION

    EPA Science Inventory

    The purpose of this investigation was to research and document the application of remote sensing technology for wetlands detection. arious sensors and platforms are evaluated for: suitability to monitor specific wetland systems; effectiveness of detailing wetland extent and capab...

  5. Dendritic Growth Investigators

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Representatives of NASA materials science experiments supported the NASA exhibit at the Rernselaer Polytechnic Institute's Space Week activities, April 5 through 11, 1999. From left to right are: Angie Jackman, project manager at NASA's Marshall Space Flight Center for dendritic growth experiments; Dr. Martin Glicksman of Rennselaer Polytechnic Instutute, Troy, NY, principal investigator on the Isothermal Dendritic Growth Experiment (IDGE) that flew three times on the Space Shuttle; and Dr. Matthew Koss of College of the Holy Cross in Worcester, MA, a co-investigator on the IDGE and now principal investigator on the Transient Dendritic Solidification Experiment being developed for the International Space Station (ISS). The image at far left is a dendrite grown in Glicksman's IDGE tests aboard the Shuttle. Glicksman is also principal investigator for the Evolution of Local Microstructures: Spatial Instabilities of Coarsening Clusters.

  6. Skylab EREP Investigations Summary

    NASA Technical Reports Server (NTRS)

    Pierson, W. J. (Editor)

    1978-01-01

    The problems in the areas of agriculture, range and forestry; land use and cartography; geology and hydrology; oceans atmosphere, and data analysis techniques were investigated and summarized using Earth Resources Experiment Package (EREP) data.

  7. The Cassini Radar Investigation

    NASA Technical Reports Server (NTRS)

    Wall, Stephen D.

    2008-01-01

    The Cassini/Huygens Mission is a nineteen-year multinational project to design, construct and execute an investigation of the Saturn system, with emphasis on its largest moon, Titan. Titan's atmosphere is nearly opaque at optical wavelengths, so a Ku-band radar imaging system was required to map its surface. In this paper we describe the radar instrument, discuss some of the challenges to its design, and review its operating modes. We briefly summarize the surprises that the radar instrument has revealed while investigating Titan.

  8. Systems special investigation group

    NASA Technical Reports Server (NTRS)

    1991-01-01

    An interim report concerning the Long Duration Exposure Facility (LDEF) is presented by a Boeing Systems special investigation group (SIG). The SIG activities were divided into five engineering disciplines: electrical, mechanical, optics, thermal, and batteries/solar cells. The responsibilities of the SIG included the following areas: support de-integration at Kennedy Space Center (KSC); testing of hardware at Boeing; review of principal investigator (PI) test plans and test results; support of test activities at PI labs; and collation of all test results into the SIG database.

  9. Investigations into Character Enhancement.

    ERIC Educational Resources Information Center

    Hartoonian, H. Michael

    2001-01-01

    Presents six different investigations of character enhancement that attempts to answer three questions: (1) who are you; (2) what is your destination; and (3) who is your captain? Intends to build relationships among ideas such as perspective taking, seeing and making connections with the other, and understanding more about ethical development.…

  10. Seasonal Change Investigations

    ERIC Educational Resources Information Center

    Smith, Wendy

    2009-01-01

    The author describes how the yearlong Investigating Seasonal Change at North Ponds project enabled third-grade students to take on the role of environmental scientists, recording and analyzing environmental data from ponds near their school. The students used an array of technological tools to explore and report on the causes and effects of

  11. Acid Rain Investigations.

    ERIC Educational Resources Information Center

    Hugo, John C.

    1992-01-01

    Presents an activity in which students investigate the formation of solid ammonium chloride aerosol particles to help students better understand the concept of acid rain. Provides activity objectives, procedures, sample data, clean-up instructions, and questions and answers to help interpret the data. (MDH)

  12. Magsat investigation. [Canadian shield

    NASA Technical Reports Server (NTRS)

    Hall, D. H. (principal investigator)

    1980-01-01

    A computer program was prepared for modeling segments of the Earth's crust allowing for heterogeneity in magnetization in calculating the Earth's field at Magsat heights. This permits investigation of a large number of possible models in assessing the magnetic signatures of subprovinces of the Canadian shield. The fit between the model field and observed fields is optimized in a semi-automatic procedure.

  13. Managing Criminal Investigations.

    ERIC Educational Resources Information Center

    Bloch, Peter B.; Weidman, Donald R.

    The report discusses many ways for police managers to improve the success of their departments' criminal investigation efforts. Management issues addressed include budgeting and allocating resources; improving relationships with the prosecutor; interacting with the public, especially victims and witnesses; improving relationships between

  14. Sequences for Student Investigation

    ERIC Educational Resources Information Center

    Barton, Jeffrey; Feil, David; Lartigue, David; Mullins, Bernadette

    2004-01-01

    We describe two classes of sequences that give rise to accessible problems for undergraduate research. These problems may be understood with virtually no prerequisites and are well suited for computer-aided investigation. The first sequence is a variation of one introduced by Stephen Wolfram in connection with his study of cellular automata. The

  15. Investigating Children's Mathematics Readiness

    ERIC Educational Resources Information Center

    Lee, Joohi; Autry, Mary Murray; Fox, Jill; Williams, Cynthia

    2008-01-01

    A sample of 244 children (average age: 61 months) and their parents from the Dallas and Fort Worth (DFW) metroplex area in Texas were surveyed to investigate children's mathematics readiness. This study was conducted as part of a project funded by a local child care council, composed of business, civic, and education leaders in the community. The

  16. Practical Investigations of Volition.

    ERIC Educational Resources Information Center

    Lazarick, Donna L.; And Others

    1988-01-01

    Studied conditions and consequences, the characteristics of agentic (volitional, teleological) human behavior in investigations of weight control, vocational exploration, and eating disorders. Demonstrated the ability of individuals professing eating and exercise problems, to exhibit control; and in separate study examining personality factors and

  17. Investigations, Proofs and Reports

    ERIC Educational Resources Information Center

    Holton, Derek; Oldknow, Adrian; Porkess, Roger; Stripp, Charlie

    2004-01-01

    Here we give an example of a problem that could be beneficially investigated by AS/A level students. It is a geometry problem that they can profitably tackle by geometric (especially geometry software) and algebraic means. Such problems naturally lead students to the need for proof--an essential part of mathematics that is often lacking in current

  18. Investigating Your Environment.

    ERIC Educational Resources Information Center

    Forest Service (USDA), Washington, DC.

    The goal of this interdisciplinary curriculum is to enable students to make informed and responsible decisions about natural resources management by promoting an understanding of natural, social, and economic environments and the student's role in affecting all three. The included investigations utilize processes and techniques that help people

  19. The Polar Insulation Investigation

    ERIC Educational Resources Information Center

    Urban-Rich, Juanita

    2006-01-01

    In this article, the author developed an activity called "The Polar Insulation Investigation." This activity builds on students' natural interest in "things polar" and introduces them to animal adaptations in a unique way. The aim of the exploration is to determine the role of animal coverings (e.g., blubber, fur, and feathers) and to see which is

  20. Clinical Investigations Branch (CIB)

    Cancer.gov

    Meg Mooney, MD, MBA is the Chief of the Clinical Investigations Branch (CIB) of the Cancer Therapy Evaluation Program (CTEP), Division of Cancer Treatment and Diagnosis, at the NCI and oversees adult sarcoma cancer therapeutics. She was formerly the Interim Director of the Office of Evidence-Based Surgery at the American College of Surgeons in Chicago, Illinois.

  1. Investigating Ocean Pollution.

    ERIC Educational Resources Information Center

    LeBeau, Sue

    1998-01-01

    Describes a fifth-grade class project to investigate two major forms of ocean pollution: plastics and oil. Students work in groups and read, discuss, speculate, offer opinions, and participate in activities such as keeping a plastics journal, testing the biodegradability of plastics, and simulating oil spills. Activities culminate in…

  2. Charles Darwin's Botanical Investigations

    ERIC Educational Resources Information Center

    Harley, Suzanne M.

    2010-01-01

    Charles Darwin's botanical studies provide a way to expose students to his work that followed the publication of "On the Origin of Species." We can use stories from his plant investigations to illustrate key concepts in the life sciences and model how questions are asked and answered in science.

  3. Soil, An Environmental Investigation.

    ERIC Educational Resources Information Center

    National Wildlife Federation, Washington, DC.

    This environmental unit is one of a series designed for integration within an existing curriculum. The unit is self-contained and requires minimal teacher preparation. The philosophy of the series is based on an experience-oriented process that encourages self-paced independent student work. This particular unit investigates soil in relation to…

  4. Investigating Ocean Pollution.

    ERIC Educational Resources Information Center

    LeBeau, Sue

    1998-01-01

    Describes a fifth-grade class project to investigate two major forms of ocean pollution: plastics and oil. Students work in groups and read, discuss, speculate, offer opinions, and participate in activities such as keeping a plastics journal, testing the biodegradability of plastics, and simulating oil spills. Activities culminate in

  5. The Polar Insulation Investigation

    ERIC Educational Resources Information Center

    Urban-Rich, Juanita

    2006-01-01

    In this article, the author developed an activity called "The Polar Insulation Investigation." This activity builds on students' natural interest in "things polar" and introduces them to animal adaptations in a unique way. The aim of the exploration is to determine the role of animal coverings (e.g., blubber, fur, and feathers) and to see which is…

  6. Investigating Children's Mathematics Readiness

    ERIC Educational Resources Information Center

    Lee, Joohi; Autry, Mary Murray; Fox, Jill; Williams, Cynthia

    2008-01-01

    A sample of 244 children (average age: 61 months) and their parents from the Dallas and Fort Worth (DFW) metroplex area in Texas were surveyed to investigate children's mathematics readiness. This study was conducted as part of a project funded by a local child care council, composed of business, civic, and education leaders in the community. The…

  7. Ice Core Investigations

    ERIC Educational Resources Information Center

    Krim, Jessica; Brody, Michael

    2008-01-01

    What can glaciers tell us about volcanoes and atmospheric conditions? How does this information relate to our understanding of climate change? Ice Core Investigations is an original and innovative activity that explores these types of questions. It brings together popular science issues such as research, climate change, ice core drilling, and air…

  8. Investigating Ramps and Sliders.

    ERIC Educational Resources Information Center

    Malone, Mark R.

    1986-01-01

    Offers a series of hands-on activities for introducing students to concepts of energy transfer and conversion. Describes how simple devices as marbles, ramps, and sliders can be used to gauge the transfer of energy and assist in the development of investigative skills. (ML)

  9. Ice Core Investigations

    ERIC Educational Resources Information Center

    Krim, Jessica; Brody, Michael

    2008-01-01

    What can glaciers tell us about volcanoes and atmospheric conditions? How does this information relate to our understanding of climate change? Ice Core Investigations is an original and innovative activity that explores these types of questions. It brings together popular science issues such as research, climate change, ice core drilling, and air

  10. Biosurveillance in outbreak investigations.

    PubMed

    Kaydos-Daniels, S Cornelia; Rojas Smith, Lucia; Farris, Tonya R

    2013-03-01

    Following the terrorist attacks of September 11 and the anthrax attacks in 2001, public health entities implemented automated surveillance systems based on disease syndromes for early detection of bioterror events and to increase timeliness of responses. Despite widespread adoption, syndromic surveillance systems' ability to provide early notification of outbreaks is unproven, and there is little documentation on their role in outbreak response. We hypothesized that biosurveillance is used in practice to augment classical outbreak investigations, and we used case studies conducted in 2007-08 to determine (1) which steps in outbreak investigations were best served by biosurveillance, and (2) which steps presented the greatest opportunities for improvement. The systems used in the case studies varied in how they functioned, and there were examples in which syndromic systems had identified outbreaks before other methods. Biosurveillance was used successfully for all steps of outbreak investigations. Key advantages of syndromic systems were sensitivity, timeliness, and flexibility and as a source of data for situational awareness. Limitations of biosurveillance were a lack of specificity, reliance on chief complaint data, and a lack of formal training for users. Linking syndromic data to triage notes and medical chart data would substantially increase the value of biosurveillance in the conduct of outbreak investigations and reduce the burden on health department staff. PMID:23448272

  11. Site investigation for Magnus

    SciTech Connect

    Semple, R.M.; Rigden, W.J.

    1983-05-01

    In April 1982, BP's Magnus structure was installed about 150 km northeast of the Shetland Islands. The most northerly, deepest water platform in the North Sea, the steel tower is supported on groups of 2 m diameter piles that were driven, in good accordance with predictions, to an average penetration of 85 m in strong cohesive soils. The paper describes investigations performed at the platform site, and documents soil characteristics for conventional and state of the art pile analyses. Reference is made to several innovative techniques first used at the Magnus site that have since been incorporated into the larger North Sea investigations. Information is given about the geological history of the site. Test results are presented on soil strength and stiffness, including critical state soil mechanics parameters, on residual pore pressures after sampling, and on the effect of sample size on strength characteristics.

  12. The gravimetric geodesy investigation

    NASA Technical Reports Server (NTRS)

    Siry, J. W.

    1971-01-01

    The Gravimetric Geodesy Investigation which will utilize altimeter and satellite-to-satellite tracking data from GEOS-C, ATS-F, and other spacecraft as appropriate to improve our knowledge of the earth's gravitational field is discussed. This investigation is interrelated with the study of oceanographic phenomena such as those associated with tides and currents, hence the latter are considered together with gravitational effects in the analysis of the data. The oceanographic effects, each of the order of a meter or two in amplitude and with still smaller uncertainties does not seriously hamper the altimeter gravimetric studies at the five meter level. Laser and satellite-to-satellite tracking data, when combined with the altimeter results, should provide the basis for such studies over wide areas of the ocean surface. Laser and conventional geodetic tracking data from ISAGEX and succeeding campaigns will provide a valuable framework for these analyses.

  13. OTV bearing deflection investigation

    NASA Astrophysics Data System (ADS)

    Reimer, B. L.; Diepenbrock, R. T.; Millis, M. G.

    1993-04-01

    The primary goal of the Bearing Deflectometer Investigation was to gain experience in the use of fiber optic displacement probe technology for bearing health monitoring in a liquid hydrogen turbo pump. The work specified in this Task Order was conducted in conjunction with Air Force Rocket Propulsion Laboratory Contract F04611-86-C-0010. APD conducted the analysis and design coordination to provide a displacement probe design compatible with the XLR-134 liquid hydrogen turbo pump assembly (TPA). Specifications and requirements of the bearing deflectometer were established working with Mechanical Technology Instruments, Inc. (MTI). The TPA design accommodated positioning of the probe to measure outer race cyclic deflections of the pump inlet bearing. The fiber optic sensor was installed as required in the TPA and sensor output was recorded during the TPA testing. Data review indicated that no bearing deflection signature could be differentiated from the inherent system noise. Alternate sensor installations were not investigated, but might yield different results.

  14. Telescope Spacer Design Investigations

    NASA Technical Reports Server (NTRS)

    Livas, Jeffrey; Preston, Alix; Arsenovich, Petar

    2011-01-01

    Space-based interferometric gravitational wave observatories will measure changes in the distance between free falling proof masses inside widely separated spacecraft with pm sensitivity. These observatories will use fast telescopes to exchange laser beams. These telescopes are part of the probed optical distances and any length change in the gravitational wave band between secondary and primary can limit the sensitivity of the observatories. Furthermore, the large distance between and space constrains on the spacecraft require to use very fast telescopes with f-numbers approaching unity. These telescopes are very sensitive against any absolute length change which would reduce interferometer visibility and, ultimately, sensitivity. Our group has assembled a Silicon Carbide test structure and investigated its dimensional in the 1 OA-4 to 1 Hz frequency band at different operating temperatures. We also measured the overall length change and started investigating asymmetric length changes during cool down which would lead to misalignments in the telescope.

  15. Best Practice -- Subsurface Investigations

    SciTech Connect

    Clark Scott

    2010-03-01

    These best practices for Subsurface Survey processes were developed at the Idaho National Laboratory (INL) and later shared and formalized by a sub-committee, under the Electrical Safety Committee of EFCOG. The developed best practice is best characterized as a Tier II (enhanced) survey process for subsurface investigations. A result of this process has been an increase in the safety and lowering of overall cost, when utility hits and their related costs are factored in. The process involves improving the methodology and thoroughness of the survey and reporting processes; or improvement in tool use rather than in the tools themselves. It is hoped that the process described here can be implemented at other sites seeking to improve their Subsurface Investigation results with little upheaval to their existing system.

  16. FCS Technology Investigation Overview

    NASA Technical Reports Server (NTRS)

    Budinger, James; Gilbert, Tricia

    2007-01-01

    This working paper provides an overview of the Future Communication Study (FCS) technology investigation progress. It includes a description of the methodology applied to technology evaluation; evaluation criteria; and technology screening (down select) results. A comparison of screening results with other similar technology screening activities is provided. Additional information included in this working paper is a description of in-depth studies (including characterization of the L-band aeronautical channel; L-band deployment cost assessment; and performance assessments of candidate technologies in the applicable aeronautical channel) that have been conducted to support technology evaluations. The paper concludes with a description on-going activities leading to conclusion of the technology investigation and the development of technology recommendations.

  17. Ball Lightning Investigations

    NASA Astrophysics Data System (ADS)

    Bychkov, V. L.; Nikitin, A. I.; Dijkhuis, G. C.

    Ball lightning (BL) researches' review and theoretical models of three different authors are presented. The general review covers investigations from 1838 until the present day, and includes a discussion on observation data, experimental modeling, and theoretical approaches. Section 6.1 is written by Bychkov and Nikitin; authors of the sections 6.2, 6.3 and 6.4 are, respectively, Bychkov, Nikitin and Dijkhuis.

  18. Free compressible jet investigation

    NASA Astrophysics Data System (ADS)

    De Gregorio, Fabrizio

    2014-03-01

    The nozzle pressure ratio (NPR) effect on a supersonic turbulent jet was investigated. A dedicated convergent/divergent nozzle together with a flow feeding system was designed and manufactured. A nozzle Mach exit of M j = 1.5 was selected in order to obtain a convective Mach number of M c = 0.6. The flow was investigated for over-expanded, correctly expanded and under-expanded jet conditions. Mach number, total temperature and flow velocity measurements were carried out in order to characterise the jet behaviour. The inlet conditions of the jet flow were monitored in order to calculate the nozzle exit speed of sound and evaluate the mean Mach number distribution starting from the flow velocity data. A detailed analysis of the Mach results obtained by a static Pitot probe and by a particle image velocimetry measurement system was carried out. The mean flow velocity was investigated, and the axial Mach decay and the spreading rate were associated with the flow structures and with the compressibility effects. Aerodynamics of the different jet conditions was evaluated, and the shock cells structures were detected and discussed correlating the jet structure to the flow fluctuation and local turbulence. The longitudinal and radial distribution of the total temperature was investigated, and the temperature profiles were analysed and discussed. The total temperature behaviour was correlated to the turbulent phenomena and to the NPR jet conditions. Self-similarity condition was encountered and discussed for the over-expanded jet. Compressibility effects on the local turbulence, on the turbulent kinetic energy and on the Reynolds tensor were discussed.

  19. Rocket Motor Microphone Investigation

    NASA Technical Reports Server (NTRS)

    Pilkey, Debbie; Herrera, Eric; Gee, Kent L.; Giraud, Jerom H.; Young, Devin J.

    2010-01-01

    At ATK's facility in Utah, large full-scale solid rocket motors are tested. The largest is a five-segment version of the reusable solid rocket motor, which is for use on the Ares I launch vehicle. As a continuous improvement project, ATK and BYU investigated the use of microphones on these static tests, the vibration and temperature to which the instruments are subjected, and in particular the use of vent tubes and the effects these vents have at low frequencies.

  20. Genesis Failure Investigation Report

    NASA Technical Reports Server (NTRS)

    Klein, John

    2004-01-01

    The-Genesis mission to collect solar-wind samples and return them to Earth for detailed analysis proceeded successfully for 3.5 years. During reentry on September 8, 2004, a failure in the entry, descent and landing sequence resulted in a crash landing of the Genesis sample return capsule. This document describes the findings of the avionics sub-team that supported the accident investigation of the JPL Failure Review Board.

  1. Numerical Investigation of Boiling

    NASA Astrophysics Data System (ADS)

    Sagan, Michael; Tanguy, Sebastien; Colin, Catherine

    2012-11-01

    In this work, boiling is numerically investigated, using two phase flow direct numerical simulation based on a level set / Ghost Fluid method. Nucleate boiling implies both thermal issue and multiphase dynamics issues at different scales and at different stages of bubble growth. As a result, the different phenomena are investigated separately, considering their nature and the scale at which they occur. First, boiling of a static bubble immersed in an overheated liquid is analysed. Numerical simulations have been performed at different Jakob numbers in the case of strong density discontinuity through the interface. The results show a good agreement on bubble radius evolution between the theoretical evolution and numerical simulation. After the validation of the code for the Scriven test case, interaction of a bubble with a wall is studied. A numerical method taking into account contact angle is evaluated by comparing simulations of the spreading of a liquid droplet impacting on a plate, with experimental data. Then the heat transfer near the contact line is investigated, and simulations of nucleate boiling are performed considering different contact angles values. Finally, the relevance of including a model to take into account the evaporation of the micro layer is discussed.

  2. STS investigators' guide

    NASA Technical Reports Server (NTRS)

    1989-01-01

    The capability of the Space Transportation System (STS), the Space Shuttle, to support crew tended and free flyer research in low Earth orbit has opened new possibilities for science in space. For the first time, research equipment can be put into orbit routinely, operated in either a shirtsleeve environment or exposed to space, and then returned to the investigator. NASA, operator of the Shuttle, has implemented a variety of programs to ensure that anyone with a worthy research idea can take advantage of this opportunity. Investigators ranging from high school students to renowned space scientists have already used the Shuttle as a platform for making Earth, atmospheric, and astronomical observations; for performing space plasma physics measurements; and for exploring the effects of microgravity on living organisms and physical processes. For investigators considering a flight experiment for the first time, this guide explains what the Shuttle has to offer, how to arrange to fly an experiment, and what to expect once preparations for the flight are under way.

  3. Radar Investigations of Asteroids

    NASA Technical Reports Server (NTRS)

    Ostro, S. J.

    1984-01-01

    Radar investigations of asteroids, including observations during 1984 to 1985 of at least 8 potential targets and continued analyses of radar data obtained during 1980 to 1984 for 30 other asteroids is proposed. The primary scientific objectives include estimation of echo strength, polarization, spectral shape, spectral bandwidth, and Doppler shift. These measurements yield estimates of target size, shape, and spin vector; place constraints on topography, morphology, density, and composition of the planetary surface; yield refined estimates of target orbital parameters; and reveals the presence of asteroidal satellites.

  4. VAB Sway Investigation

    NASA Technical Reports Server (NTRS)

    Youngquist, Robert c.; Ihlefeld, Curtis M.; Lane, John E.; Starr, Stanley O.

    2013-01-01

    The Vehicle Assembly Building (VAB) was constructed in the mid-1960s to house the Saturn V moon rocket while it was being assembled. Designed to withstand hurricanes and tropical storms, the V AB has a foundation consisting of 30,000 cubic yards of concrete strengthened by 4,225 steel rods driven 160 feet into limestone bedrock. The goal of the VAB Sway Investigation, which began collecting data in April 201 0 and ended in November 2012, was to quantify the displacement or sway of the VAB as a function of wind loading.

  5. Imaging for homicide investigations.

    PubMed

    Wo?niak, Krzysztof; Moska?a, Artur; Rzepecka-Wo?niak, Ewa

    2015-09-01

    The authors present the opportunities of the application of post-mortem imaging, focusing on post-mortem computed tomography and post-mortem computed tomography angiography in modern forensic investigation of homicide cases. The paper is based on scientific publications related to the subject from ca. the past 10 years, supplemented by the authors' own experiences. The article is illustrated with reconstructions based on the authors' own cases related to homicide due to ballistic/sharp/blunt trauma. As is shown, the results of evaluation of post-mortem computed tomography allow better diagnosis, documentation and visualisation of forensic examinations. PMID:25776018

  6. Laboratory investigation of hypercoagulability.

    PubMed

    Francis, J L

    1998-01-01

    For many years, the laboratory investigation of patients with thrombophilia has lagged behind that of patients with bleeding diathesis. Improved understanding of the mechanisms that control and regulate coagulation, and the resultant recognition of new defects, have greatly stimulated clinical laboratory interest in this area. Assays to detect resistance to activated protein C; deficiencies of antithrombin, protein C, and protein S; and the presence of antiphospholipid antibodies are widely available and should form part of the investigation of patients that present with idiopathic thrombosis. Such a work-up will likely provide an explanation for thrombosis in 40 to 60% of patients. Abnormalities of fibrinogen and fibrinolysis may explain still more, although such defects are currently considered rare. In addition, presently unrecognized defects almost certainly exist, and the identification of such individuals will undoubtedly improve our understanding of the hemostatic mechanism. Laboratory tests to define the hypercoagulable state are continually being developed. They include whole blood coagulation and platelet function tests and novel activation markers. However, acceptance of these approaches by clinical laboratories has been slow. PMID:9579632

  7. [MR investigations in stroke].

    PubMed

    Kenéz, József; Barsi, Péter

    2002-03-20

    In the article digital imaging methods are presented with special emphasis on the use on diagnostics of cerebral circulation studies. Recently, fundamental changes have happened in this field, concerning especially the MR investigations. These changes have influenced the therapeutic strategies of ischaemic stroke. Authors give the theoretical background on the diffusion and perfusion MR imaging, emphasising the importance of their "mismatch" and its impact in the estimation of the outcome of ischaemic events. More recently, new, controversial facts arose, regarding the reasons of the introduction of the theory of so called "negative" and "positive" mismatches. As a consequence, a level of uncertainty took place in the judgement of prognostics. The leading institutions are searching the way to solve the problem which seems to be the quantitative evaluation of the diffusion, perfusion and mismatch data. The advent of the multislice spiral CT with very fast imaging and the importance of CT investigations increased. With this new kind of equipment, even perfusion studies can be performed using iodinated contrast medium. PMID:12122985

  8. Bearing fatigue investigation 3

    NASA Technical Reports Server (NTRS)

    Nahm, A. H.; Bamberger, E. N.; Signer, H. R.

    1982-01-01

    The operating characteristics of large diameter rolling-element bearings in the ultra high speed regimes expected in advanced turbine engines for high performance aircraft were investigated. A high temperature lubricant, DuPont Krytox 143 AC, was evaluated at bearing speeds to 3 million DN. Compared to the results of earlier, similar tests using a MIL-L-23699 (Type II) lubricant, bearings lubricated with the high density Krytox fluid showed significantly higher power requirements. Additionally, short bearing lives were observed when this fluid was used with AISI M50 bearings in an air atmosphere. The primary mode of failure was corrosion initiated surface distress (fatigue) on the raceways. The potential of a case-carburized bearing to sustain a combination of high-tangential and hertzian stresses without experiencing race fracture was also investigated. Limited full scale bearing tests of a 120 mm bore ball bearing at a speed of 25,000 rpm (3 million DN) indicated that a carburized material could sustain spalling fatigue without subsequent propagation to fracture. Planned life tests of the carburized material had to be aborted, however, because of apparent processing-induced material defects.

  9. Columbia Accident Investigation Board

    NASA Technical Reports Server (NTRS)

    2003-01-01

    The Columbia Accident Investigation Board gathers for a second day for its third public hearing, held in Cape Canaveral, Florida. The CAIB was set up to examine STS-107 and analyze exploratory tests. Navy Admiral Harold W. 'Hal' Gehman Jr. was designated as the Chairman of the Board. From left to right in this photo sit Board Members Steven B. Wallace, Scott Hubbard, Dr. John Logsdon, Rear Admiral Stephen Turcotte, Hal Gehman, General Duane Deal, Dr. Douglas Osheroff, and Maj. General Kenneth W. Hess. Not shown are Maj. General John Barry, Dr. James N. Hallock, Roger Tetrault, Dr. Sheila Widnall, and Dr. Sally Ride. For more information on STS-107, please see GRIN Columbia General Explanation

  10. An investigation into intermittency

    NASA Astrophysics Data System (ADS)

    Decamp, D.; Deschizeaux, B.; Goy, C.; Lees, J.-P.; Minard, M.-N.; Alemany, R.; Crespo, J. M.; Delfino, M.; Fernandez, E.; Gaitan, V.; Garrido, Ll.; Mir, Ll. M.; Pacheco, A.; Catanesi, M. G.; Creanza, D.; de Palma, M.; Farilla, A.; Iaselli, G.; Maggi, G.; Maggi, M.; Natali, S.; Nuzzo, S.; Quattromini, M.; Ranieri, A.; Raso, G.; Romano, F.; Ruggieri, F.; Selvaggi, G.; Silvestris, L.; Tempesta, P.; Zito, G.; Gao, Y.; Hu, H.; Huang, D.; Huang, X.; Lin, J.; Lou, J.; Qiao, C.; Ruan, T.; Wang, T.; Xie, Y.; Xu, D.; Xu, R.; Zhang, J.; Zhao, W.; Atwood, W. B.; Bauerdick, L. A. T.; Bird, F.; Blucher, E.; Bonvicini, G.; Bossi, F.; Boudreau, J.; Brown, D.; Burnett, T. H.; Drevermann, H.; Forty, R. W.; Grab, C.; Hagelberg, R.; Haywood, S.; Hilgart, J.; Jost, B.; Kasemann, M.; Knobloch, J.; Lacourt, A.; Lanon, E.; Lehraus, I.; Lohse, T.; Lusiani, A.; Marchioro, A.; Martinez, M.; Mato, P.; Menary, S.; Minten, A.; Miotto, A.; Miquel, R.; Moser, H.-G.; Nash, J.; Palazzi, P.; Ranjard, F.; Redlinger, G.; Roth, A.; Rothberg, J.; Rotscheidt, H.; Saich, M.; Schlatter, D.; Schmelling, M.; Takashima, M.; Tejessy, W.; Wachsmuth, H.; Wasserbaech, S.; Wiedenmann, W.; Witzeling, W.; Wotschack, J.; Ajaltouni, Z.; Badaud, F.; Bardadin-Otwinowska, M.; Bencheikh, A. M.; El Fellous, R.; Falvard, A.; Gay, P.; Guicheney, C.; Harvey, J.; Henrard, P.; Jousset, J.; Michel, B.; Montret, J.-C.; Pallin, D.; Perret, P.; Proriol, J.; Prulhire, F.; Stimpfl, G.; Hansen, J. D.; Hansen, P. H.; Mllerud, R.; Nilsson, B. S.; Efthymiopoulos, I.; Simopoulou, E.; Vayaki, A.; Badier, J.; Blondel, A.; Bonneaud, G.; Bourotte, J.; Braems, F.; Brient, J. C.; Fouque, G.; Gamess, A.; Guirlet, R.; Orteu, S.; Rosowsky, A.; Roug, A.; Rumpf, M.; Tanaka, R.; Videau, H.; Candlin, D. J.; Veitch, E.; Moneta, L.; Parrini, G.; Corden, M.; Georgiopoulos, C.; Ikeda, M.; Lannutti, J.; Levinthal, D.; Mermikides, M.; Sawyer, L.; Antonelli, A.; Baldini, R.; Bencivenni, G.; Bologna, G.; Campana, P.; Capon, G.; Cerutti, F.; Chiarella, V.; D'Ettorre-Piazzoli, B.; Felici, G.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, G. P.; Nicoletti, G.; Passalacqua, L.; Pepe-Altarelli, M.; Picchi, P.; Zografou, P.; Altoon, B.; Boyle, O.; Halley, A. W.; Ten Have, I.; Hearns, J. L.; Lynch, J. G.; Morton, W. T.; Raine, C.; Scarr, J. M.; Smith, K.; Thompson, A. S.; Turnbull, R. M.; Brandl, B.; Braun, O.; Geiges, R.; Geweniger, C.; Hanke, P.; Hepp, V.; Kluge, E. E.; Maumary, Y.; Putzer, A.; Rensch, B.; Stahl, A.; Tittel, K.; Wunsch, M.; Belk, A. T.; Beuselinck, R.; Binnie, D. M.; Cameron, W.; Cattaneo, M.; Dornan, P. J.; Dugeay, S.; Greene, A. M.; Hassard, J. F.; Lieske, N. M.; Patton, S. J.; Payne, D. G.; Phillips, M. J.; Sedgbeer, J. K.; Taylor, G.; Tomalin, I. R.; Wright, A. G.; Girtler, P.; Kuhn, D.; Rudolph, G.; Bowdery, C. K.; Brodbeck, T. J.; Finch, A. J.; Foster, F.; Hughes, G.; Keemer, N. R.; Nuttall, M.; Patel, A.; Rowlingson, B. S.; Sloan, T.; Snow, S. W.; Whelan, E. P.; Barczewski, T.; Kleinknecht, K.; Raab, J.; Renk, B.; Roehn, S.; Sander, H.-G.; Schmidt, H.; Steeg, F.; Walther, S. M.; Wolf, B.; Albanese, J.-P.; Aubert, J.-J.; Benchouk, C.; Bernard, V.; Bonissent, A.; Courvoisier, D.; Etienne, F.; Papalexiou, S.; Payre, P.; Pietrzyk, B.; Qian, Z.; Talby, M.; Becker, H.; Blum, W.; Cattaneo, P.; Cowan, G.; Dehning, B.; Dietl, H.; Dydak, F.; Fernandez-Bosman, M.; Hansl-Kozanecka, T.; Jahn, A.; Kozanecki, W.; Lange, E.; Lauber, J.; Ltjens, G.; Lutz, G.; Mnner, W.; Pan, Y.; Richter, R.; Schrder, J.; Schwarz, A. S.; Settles, R.; Stierlin, U.; Denis, R. St.; Thomas, J.; Wolf, G.; Bertin, V.; Boucrot, J.; Callot, O.; Chen, X.; Cordier, A.; Davier, M.; Ganis, G.; Grivaz, J.-F.; Heusse, Ph.; Janot, P.; Kim, D. W.; Le Diberder, F.; Lefranois, J.; Lutz, A.-M.; Veillet, J.-J.; Videau, I.; Zhang, Z.; Zomer, F.; Abbaneo, D.; Amendolia, S. R.; Bagliesi, G.; Batignani, G.; Bosisio, L.; Bottigli, U.; Bradaschia, C.; Carpinelli, M.; Ciocci, M. A.; Dell'Orso, R.; Ferrante, I.; Fidecaro, F.; Fo, L.; Focardi, E.; Forti, F.; Gatto, C.; Giassi, A.; Giorgi, M. A.; Ligabue, F.; Mannelli, E. B.; Marrochesi, P. S.; Messineo, A.; Palla, F.; Sanguinetti, G.; Steinberger, J.; Tenchini, R.; Tonelli, G.; Triggiani, G.; Vannini, C.; Venturi, A.; Verdini, P. G.; Walsh, J.; Carter, J. M.; Green, M. G.; March, P. V.; Medcalf, T.; Quazi, I. S.; Strong, J. A.; Thomas, R. M.; West, L. R.; Wildish, T.; Botterill, D. R.; Clifft, R. W.; Edgecock, T. R.; Edwards, M.; Fisher, S. M.; Jones, T. J.; Norton, P. R.; Salmon, D. P.; Thompson, J. C.; Bloch-Devaux, B.; Colas, P.; Klopfenstein, C.; Locci, E.; Loucatos, S.; Monnier, E.; Perez, P.; Perlas, J. A.; Perrier, F.; Rander, J.; Renardy, J.-F.; Roussarie, A.; Schuller, J.-P.; Schwindling, J.; Vallage, B.; Ashman, J. G.; Booth, C. N.; Buttar, C.; Carney, R.; Cartwright, S.

    1992-03-01

    The results of an investigation based on ALEPH data, e + e - ? hadrons atsqrt s = 91 GeV, into fluctuations in rapidity space are presented. It is found that the behaviour of the factorial moments is well represented by the Lund parton shower model. An estimate is made of the scale of fluctuations needed to describe the data. Differential moments are introduced and are used to demonstrate that within the average represented by the traditional factorial moments the pattern of fluctuations is itself a strong function of rapidity. This pattern is shown to be primarily associated with the emission of hard gluons. The implied structure between the hadron clusters and partons is explored by the use of transverse mass moments. It is concluded that the principal features of the one-dimensional factorial moments, differential moments and transverse mass moments have their origin in the O(? s ) matrix element, kinematic boundaries and the method of selection of the event axis.

  11. Investigations of lunar materials

    NASA Technical Reports Server (NTRS)

    Comstock, G. M.; Fvwaraye, A. O.; Fleischer, R. L.; Hart, H. R., Jr.

    1972-01-01

    The investigations were directed at determining the radiation history and surface chronology of lunar materials using the etched particle track technique. The major lunar materials studied are the igneous rocks and double core from Apollo 12, the breccia and soil samples from Apollo 14, and the core samples from Luna 16. In the course of this work two new and potentially important observations were made: (1) Cosmic ray-induced spallation-recoil tracks were identified. The density of such tracks, when compared with the density of tracks induced by a known flux of accelerator protons, yields the time of exposure of a sample within the top meter or two of moon's surface. (2) Natural, fine scale plastic deformation was found to have fragmented pre-existing charged particle tracks, allowing the dating of the mechanical event causing the deformation.

  12. Investigation of erectile dysfunction

    PubMed Central

    Patel, D V; Halls, J; Patel, U

    2012-01-01

    Erectile dysfunction (ED) represents a common and debilitating condition with a wide range of organic and non-organic causes. Physical aetiologies can be divided into disorders affecting arterial inflow, the venous occlusion mechanism or the penile structure itself. Various imaging modalities can be utilised to investigate the physical causes of ED, but penile Doppler sonography (PDS) is the most informative technique, indicated in those patients with ED who do not respond to oral pharmacological agents (e.g. phosphodiesterase type 5 inhibitors). This review will examine the anatomical and physiological basis of penile erection, the method for performing PDS and features of specific causes of ED, and will also consider the alternative imaging modalities available. PMID:23118101

  13. Vitamin D Investigation

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The solar dosimeter, a spinoff from NASA solar cell technology, measures the amount of solar radiation to which its wearer is exposed. It was used in a University of Cincinnati Medical Center investigation into the effect of sunlight exposure on maintaining vitamin D status in infants. The infants were exposed to sunlight and records were kept by mothers. Each baby wore a solar dosimeter. The two circular "eyes" in the instrument are silicon photovoltaic detectors which collect solar energy, convert it to electric signals and transmit the charge to E-cells that record the charge by plating silver ions onto an electrode. The time required to plate the silver measures the radiation received. The University found the solar dosimeter to be very effective.

  14. Dynamic airfoil stall investigations

    NASA Technical Reports Server (NTRS)

    Platzer, M. F.; Chandrasekhara, M. S.; Ekaterinaris, J. A.; Carr, L. W.

    1992-01-01

    Experimental and computational investigations of the dynamic stall phenomenon continue to attract the attention of various research groups in the major aeronautical research laboratories. There are two reasons for this continued research interest. First, the occurrence of dynamic stall on the retreating blade of helicopters imposes a severe performance limitation and thus suggests to search for ways to delay the onset of dynamic stall. Second, the lift enhancement prior to dynamic stall presents an opportunity to achieve enhanced maneuverability of fighter aircraft. A description of the major parameters affecting dynamic stall and lift and an evaluation of research efforts prior to 1988 has been given by Carr. In this paper the authors' recent progress in the development of experimental and computational methods to analyze the dynamic stall phenomena occurring on NACA 0112 airfoils is reviewed. First, the major experimental and computational approaches and results are summarized. This is followed by an assessment of our results and an outlook toward the future.

  15. Rosetta Radio Science Investigations

    NASA Technical Reports Server (NTRS)

    Patzold, M.; Neubauer, F. M.; Wennmacher, A.; Aksnes, K.; Anderson, J. D.; Asmar, S. W.; Tinto, M.; Tsurutani, B. T.; Yeomans, D. K.; Barriot, J. -P.; Bird, M. K.; Boehnhardt, H.; Gill, E.; Montenbruck, O.; Grun, E.; Hausler, B.; Ip, W. H.; Thomas, N.; Marouf, E. A.; Rickman, H.; Wallis, M. K.; Wickramasinghe, N. C.

    1996-01-01

    The Rosetta Radio Science Investigations (RSI) experiment was selected by the European Space Agency to be included in the International Rosetta Mission to comet P/Wirtanen (launch in 2003, arrival and operational phase at the comet 2011-2013). The RSI science objectives address fundamental aspects of cometary physics such as the mass and bulk density of the nucleus, the gravity field, non-gravitational forces, the size and shape, the internal structure, the composition and roughness of the nucleus surface, the abundance of large dust grains and the plasma content in the coma and the combined dust and gas mass flux on the orbiter. RSI will make use of the radio system of the Rosetta spacecraft.

  16. Mineralogical investigations of Mars.

    PubMed

    O'Connor, J T

    1969-07-01

    A mineralogical study of Mars will offer a great deal of information on the present state of the planet and on the processes which have operated on it during the past. The degree of planetary development, the amount of igneous activity, the development of a secondary atmosphere, the presence of metamorphic or sedimentary processes, and the effects of impacting meteorites will all be recorded in the mineral assemblages. The identification of the mineral phases in the Martian rocks is the fundamental step in conducting such an investigation. Reliable phase analysis must be backed up with good elemental analyses as well, and with textural analysis of the rocks whenever possible. Many instruments including diffractometers, spectrometers, and petrographic microscopes have been designed to perform the desired analyses on unmanned spaceflights. Proper utilization of complementary techniques and a modest attention to a concerted effort on the problem will yield a quite sophisticated understanding of Mars with only a few space flights. PMID:20072434

  17. Investigating and reporting accidents effectively

    SciTech Connect

    Fillmore, D.; Trost, A.

    1990-01-01

    This booklet is written to help the untrained accident investigator perform a type C'' accident investigation. It is designed to identify the philosophy of accident investigation, the steps involved, the potential problems in the investigation, and give instruction for completing the DOE 5484.X form. A hypothetical accident is analyzed to illustrate the proper investigating and reporting techniques.

  18. Abyssal soil investigation equipment

    SciTech Connect

    Smits, F.P.; Maggioni, W.; Mainardi, U.

    1994-12-31

    The present paper deals with the development of a testing device for quick offshore geotechnical investigations. The equipment, at present, consists of a penetrometer, mounted on a sea bed platform, a handling frame and a control cabin; a further development includes a drill rig and a geotechnical laboratory. All this is designed so as to be an autonomous unit that can be handled by various types of non-specialized ships which have the necessary deck space. The sea bed platform can operate in 2,000 m of waterdepth and is provided with a hydraulic penetrometer, with a thrust capacity of 400 kN, able to carry out cone penetration type testing until a depth of more than 100 m, as well as shallow depth continuous sampling. The penetrometer can be equipped with a series of probes (piezocone, pressiocone, total radial pressure transducer, seismic cone) allowing the execution of the wide range of direct geotechnical measurements normally performed during on-land penetration tests.

  19. Sabatier Catalyst Poisoning Investigation

    NASA Technical Reports Server (NTRS)

    Nallette, Tim; Perry, Jay; Abney, Morgan; Knox, Jim; Goldblatt, Loel

    2013-01-01

    The Carbon Dioxide Reduction Assembly (CRA) on the International Space Station (ISS) has been operational since 2010. The CRA uses a Sabatier reactor to produce water and methane by reaction of the metabolic CO2 scrubbed from the cabin air and the hydrogen byproduct from the water electrolysis system used for metabolic oxygen generation. Incorporating the CRA into the overall air revitalization system has facilitated life support system loop closure on the ISS reducing resupply logistics and thereby enhancing longer term missions. The CRA utilizes CO2 which has been adsorbed in a 5A molecular sieve within the Carbon Dioxide Removal Assembly, CDRA. There is a potential of compounds with molecular dimensions similar to, or less than CO2 to also be adsorbed. In this fashion trace contaminants may be concentrated within the CDRA and subsequently desorbed with the CO2 to the CRA. Currently, there is no provision to remove contaminants prior to entering the Sabatier catalyst bed. The risk associated with this is potential catalyst degradation due to trace organic contaminants in the CRA carbon dioxide feed acting as catalyst poisons. To better understand this risk, United Technologies Aerospace System (UTAS) has teamed with MSFC to investigate the impact of various trace contaminants on the CRA catalyst performance at relative ISS cabin air concentrations and at about 200/400 times of ISS concentrations, representative of the potential concentrating effect of the CDRA molecular sieve. This paper summarizes our initial assessment results.

  20. Kapton HN investigations

    SciTech Connect

    Williams, M.K.; Huelskamp, M.A.; Armstrong, K.P.; Brandon, J.L.; Lavoie, J.M. ); Smith, A.E. )

    1990-09-28

    Kapton HN properties and the properties of the slip additive calcium phosphate dibasic (CaHPO{sub 4}) were investigated. Impurity analyses were performed on the compound by inductively coupled plasma (ICP) and ion chromatography (IC). Other analyses on the slip additive included: processing solution -- dissolution analysis, high-explosive compatibility studies, scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), and particle size distribution. Testing and analyses were also performed on Kapton HN film and other polyimide films that could serve as possible replacements for Kapton HN. The polyimide films that were tested are: Upilex-R, Upilex-S, Upilex-SGA, and Apical. The analyses performed were: infrared (IR), x-ray photoelectron spectroscopy (XPS), SEM/EDS, high-potential breakdown testing, (PVD) physical vapor deposition adhesion tests, and peel tests. Upilex-S flyer cables were also fabricated and successfully test fired. In addition to these raw material tests, production cables were chemically treated and destructively (high potential) tested. A long-term aging environment for production cables was also selected, and aging tests were begun. 9 figs., 7 tabs.

  1. HALOE Science Investigation

    NASA Technical Reports Server (NTRS)

    Benner, D. Chris

    1998-01-01

    This cooperative agreement has investigated a number of spectroscopic problems of interest to the Halogen Occultation Experiment (HALOE). The types of studies performed are in two parts, namely, those that involve the testing and characterization of correlation spectrometers and those that provide basic molecular spectroscopic information. In addition, some solar studies were performed with the calibration data returned by HALOE from orbit. In order to accomplish this a software package was written as part of this cooperative agreement. The HALOE spectroscopic instrument package was used in various tests of the HALOE flight instrument. These included the spectral response test, the early stages of the gas response test and various spectral response tests of the detectors and optical elements of the instruments. Considerable effort was also expended upon the proper laboratory setup for many of the prelaunch tests of the HALOE flight instrument, including the spectral response test and the gas response test. These tests provided the calibration and the assurance that the calibration was performed correctly.

  2. Soldering In Space Investigation

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This video captures Mike Fincke melting solder during the first set of planned In-Space Soldering Investigation (ISSI) experiments onboard the International Space Station (ISS). In the video, Fincke touches the tip of the soldering iron to a wire wrapped with rosin-core solder. Review of the experiment video revealed melting kinetics, wetting characteristics, and equilibrium shape attainment of the solder charge. The main photograph shows the results of feeding solder wire onto a heated surface. Here the solder is still attached with the spool seen floating in the foreground of the image. The inset photograph at right, shows a set of three simple melting experiments in which the solder, not affected by gravity, achieved an unexpected equilibrium football shape on the wire. Samples returned to Earth were examined for porosity and flux distribution as well as micro structural development. ISSI's purpose was to find out how solder behaves in a weightless environment and promote our knowledge of fabrication and repair techniques that might be employed during extended space exploration missions.

  3. Soldering In Space Investigation

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This video captures Mike Fincke melting solder during the first set of planned In-Space Soldering Investigation (ISSI) experiments onboard the International Space Station (ISS). In the video, Fincke touches the tip of the soldering iron to a wire wrapped with rosin-core solder.Review of the experiment video revealed melting kinetics, wetting characteristics, and equilibrium shape attainment of the solder charge. The main photograph shows the results of feeding solder wire onto a heated surface. Here the solder is still attached with the spool seen floating in the foreground of the image. The inset photograph at right, shows a set of three simple melting experiments in which the solder, not affected by gravity, achieved an unexpected equilibrium football shape on the wire. Samples returned to Earth were examined for porosity and flux distribution as well as micro structural development. ISSI's purpose was to find out how solder behaves in a weightless environment and promote our knowledge of fabrication and repair techniques that might be employed during extended space exploration missions.

  4. Investigation of Holographic Scanners

    NASA Astrophysics Data System (ADS)

    Xiang, Lian Qin

    Holographic scanners are capable of challenging both the speed and resolution of polygon scanners. This work investigates, in detail, the design and operation of a holographic scanner with an aspherical reflector. The characteristics of this holographic scanner are presented through theoretical analyses and computer simulation. The calculated data and the experimental results show that this system has excellent scan line straightness and scan linearity. The influence of the eccentricity and wobble of the hologram on the quality of the scan lines can be minimized by proper choice of system parameters. This unique system can readily perform 1-D, 2 -D, 3-D and selective scans. These features make suitable applications for robot vision, part inspection, high speed printing, and input/output devices for computers. If the hologram is operating in the reflective mode, there are no transmissive components in this scanner. It can be used with acoustic waves and electromagnetic waves with longer wavelengths, such as infrared, microwaves, millimeter waves. Since it is difficult to find a suitable recording material for these waves, a technique for making computer -generated holograms has also been developed here. The practical considerations for making quality holograms are summarized. An improved coating process for photoresist and a novel anti-reflection setup for the hologram plate are developed. The detailed experimental processes are included. The planar grating scanner for one dimensional, two-dimensional and cross-scanning patterns is analyzed and demonstrated. A comparison is made with two other two-dimensional scanners.

  5. The Dawn Topography Investigation

    NASA Technical Reports Server (NTRS)

    Raymond, C. A.; Jaumann, R.; Nathues, A.; Sierks, H.; Roatsch, T.; Preusker, E; Scholten, F.; Gaskell, R. W.; Jorda, L.; Keller, H.-U.; Zuber, M. T.; Smith, D. E.; Mastrodemos, N.; Mottola, S.

    2011-01-01

    The objective of the Dawn topography investigation is to derive the detailed shapes of 4 Vesta and 1 Ceres in order to create orthorectified image mosaics for geologic interpretation, as well as to study the asteroids' landforms, interior structure, and the processes that have modified their surfaces over geologic time. In this paper we describe our approaches for producing shape models, plans for acquiring the needed image data for Vesta, and the results of a numerical simulation of the Vesta mapping campaign that quantify the expected accuracy of our results. Multi-angle images obtained by Dawn's framing camera will be used to create topographic models with 100 m/pixel horizontal resolution and 10 m height accuracy at Vesta, and 200 m/pixel horizontal resolution and 20 m height accuracy at Ceres. Two different techniques, stereophotogrammetry and stereophotoclinometry, are employed to model the shape; these models will be merged with the asteroidal gravity fields obtained by Dawn to produce geodetically controlled topographic models for each body. The resulting digital topography models, together with the gravity data, will reveal the tectonic, volcanic and impact history of Vesta, and enable co-registration of data sets to determine Vesta's geologic history. At Ceres, the topography will likely reveal much about processes of surface modification as well as the internal structure and evolution of this dwarf planet.

  6. Ship Creek bioassessment investigations

    SciTech Connect

    Cushing, C.E.; Mueller, R.P.; Murphy, M.T.

    1995-06-01

    Pacific Northwest Laboratory (PNL) was asked by Elmendorf Air Force Base (EAFB) personnel to conduct a series of collections of macroinvertebrates and sediments from Ship Creek to (1) establish baseline data on these populations for reference in evaluating possible impacts from Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) activities at two operable units, (2) compare current population indices with those found by previous investigations in Ship Creek, and (3) determine baseline levels of concentrations of any contaminants in the sediments associated with the macroinvertebrates. A specific suite of indices established by the US Environmental Protection Agency (EPA) was requested for the macroinvertebrate analyses; these follow the Rapid Bioassessment Protocol developed by Plafkin et al. (1989) and will be described. Sediment sample analyses included a Microtox bioassay and chemical analysis for contaminants of concern. These analyses included, volatile organic compounds, total gasoline and diesel hydrocarbons (EPA method 8015, CA modified), total organic carbon, and an inductive-coupled plasma/mass spectrometry (ICP/MS) metals scan. Appendix A reports on the sediment analyses. The Work Plan is attached as Appendix B.

  7. Gear crack propagation investigations

    NASA Technical Reports Server (NTRS)

    Lewicki, David G.; Ballarini, Roberto

    1996-01-01

    Analytical and experimental studies were performed to investigate the effect of gear rim thickness on crack propagation life. The FRANC (FRacture ANalysis Code) computer program was used to simulate crack propagation. The FRANC program used principles of linear elastic fracture mechanics, finite element modeling, and a unique re-meshing scheme to determine crack tip stress distributions, estimate stress intensity factors, and model crack propagation. Various fatigue crack growth models were used to estimate crack propagation life based on the calculated stress intensity factors. Experimental tests were performed in a gear fatigue rig to validate predicted crack propagation results. Test gears were installed with special crack propagation gages in the tooth fillet region to measure bending fatigue crack growth. Good correlation between predicted and measured crack growth was achieved when the fatigue crack closure concept was introduced into the analysis. As the gear rim thickness decreased, the compressive cyclic stress in the gear tooth fillet region increased. This retarded crack growth and increased the number of crack propagation cycles to failure.

  8. CGRO Guest Investigator Program

    NASA Technical Reports Server (NTRS)

    Begelman, Mitchell C.

    1997-01-01

    The following are highlights from the research supported by this grant: (1) Theory of gamma-ray blazars: We studied the theory of gamma-ray blazars, being among the first investigators to propose that the GeV emission arises from Comptonization of diffuse radiation surrounding the jet, rather than from the synchrotron-self-Compton mechanism. In related work, we uncovered possible connections between the mechanisms of gamma-ray blazars and those of intraday radio variability, and have conducted a general study of the role of Compton radiation drag on the dynamics of relativistic jets. (2) A Nonlinear Monte Carlo code for gamma-ray spectrum formation: We developed, tested, and applied the first Nonlinear Monte Carlo (NLMC) code for simulating gamma-ray production and transfer under much more general (and realistic) conditions than are accessible with other techniques. The present version of the code is designed to simulate conditions thought to be present in active galactic nuclei and certain types of X-ray binaries, and includes the physics needed to model thermal and nonthermal electron-positron pair cascades. Unlike traditional Monte-Carlo techniques, our method can accurately handle highly non-linear systems in which the radiation and particle backgrounds must be determined self-consistently and in which the particle energies span many orders of magnitude. Unlike models based on kinetic equations, our code can handle arbitrary source geometries and relativistic kinematic effects In its first important application following testing, we showed that popular semi-analytic accretion disk corona models for Seyfert spectra are seriously in error, and demonstrated how the spectra can be simulated if the disk is sparsely covered by localized 'flares'.

  9. 17 CFR 38.158 - Investigations and investigation reports.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... written investigation report for disciplinary action in every instance in which compliance staff... violation. The investigation report must include the reason the investigation was initiated; a summary of... investigation reports. 38.158 Section 38.158 Commodity and Securities Exchanges COMMODITY FUTURES...

  10. 17 CFR 38.158 - Investigations and investigation reports.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... written investigation report for disciplinary action in every instance in which compliance staff... violation. The investigation report must include the reason the investigation was initiated; a summary of... investigation reports. 38.158 Section 38.158 Commodity and Securities Exchanges COMMODITY FUTURES...

  11. Cassini Plasma Spectrometer Investigation

    NASA Astrophysics Data System (ADS)

    Young, D. T.; Berthelier, J. J.; Blanc, M.; Burch, J. L.; Coates, A. J.; Goldstein, R.; Grande, M.; Hill, T. W.; Johnson, R. E.; Kelha, V.; McComas, D. J.; Sittler, E. C.; Svenes, K. R.; Szeg, K.; Tanskanen, P.; Ahola, K.; Anderson, D.; Bakshi, S.; Baragiola, R. A.; Barraclough, B. L.; Black, R. K.; Bolton, S.; Booker, T.; Bowman, R.; Casey, P.; Crary, F. J.; Delapp, D.; Dirks, G.; Eaker, N.; Funsten, H.; Furman, J. D.; Gosling, J. T.; Hannula, H.; Holmlund, C.; Huomo, H.; Illiano, J. M.; Jensen, P.; Johnson, M. A.; Linder, D. R.; Luntama, T.; Maurice, S.; McCabe, K. P.; Mursula, K.; Narheim, B. T.; Nordholt, J. E.; Preece, A.; Rudzki, J.; Ruitberg, A.; Smith, K.; Szalai, S.; Thomsen, M. F.; Viherkanto, K.; Vilppola, J.; Vollmer, T.; Wahl, T. E.; West, M.; Ylikorpi, T.; Zinsmeyer, C.

    2004-09-01

    The Cassini Plasma Spectrometer (CAPS) will make comprehensive three-dimensional mass-resolved measurements of the full variety of plasma phenomena found in Saturns magnetosphere. Our fundamental scientific goals are to understand the nature of saturnian plasmas primarily their sources of ionization, and the means by which they are accelerated, transported, and lost. In so doing the CAPS investigation will contribute to understanding Saturns magnetosphere and its complex interactions with Titan, the icy satellites and rings, Saturns ionosphere and aurora, and the solar wind. Our design approach meets these goals by emphasizing two complementary types of measurements: high-time resolution velocity distributions of electrons and all major ion species; and lower-time resolution, high-mass resolution spectra of all ion species. The CAPS instrument is made up of three sensors: the Electron Spectrometer (ELS), the Ion Beam Spectrometer (IBS), and the Ion Mass Spectrometer (IMS). The ELS measures the velocity distribution of electrons from 0.6 eV to 28,250 keV, a range that permits coverage of thermal electrons found at Titan and near the ring plane as well as more energetic trapped electrons and auroral particles. The IBS measures ion velocity distributions with very high angular and energy resolution from 1 eV to 49,800 keV. It is specially designed to measure sharply defined ion beams expected in the solar wind at 9.5 AU, highly directional rammed ion fluxes encountered in Titans ionosphere, and anticipated field-aligned auroral fluxes. The IMS is designed to measure the composition of hot, diffuse magnetospheric plasmas and low-concentration ion species 1 eV to 50,280 eV with an atomic resolution M/?M 70 and, for certain molecules, (such asN 2 + and CO+), effective resolution as high as 2500. The three sensors are mounted on a motor-driven actuator that rotates the entire instrument over approximately one-half of the sky every 3 min.

  12. Chemistry. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 19 chemistry investigations. These investigations focus on concepts related to: interactions with water; salt and calcium;…

  13. Biology. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 18 biology investigations. These investigations focus on concepts related to: organisms; classification; populations;…

  14. Biology. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 18 biology investigations. These investigations focus on concepts related to: organisms; classification; populations;

  15. Chemistry. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 19 chemistry investigations. These investigations focus on concepts related to: interactions with water; salt and calcium;

  16. Investigating and reporting accidents effectively

    SciTech Connect

    Fillmore, D.; Trost, A.

    1989-01-01

    This booklet is written to help the untrained accident investigator perform a type C'' accident investigation. It is designed to identify the philosophy of accident investigation, the steps involved, the potential problems in the investigation, and give instruction for completing the DOE 5484 X form. A hypothetical accident is analyzed to illustrate the proper investigating and reporting techniques. We must keep in mind that even simple accidents should use the same analytical ideas or techniques -- scale the accident investigation to conform to the consequence if the accident is not resolved.

  17. Investigating and reporting accidents effectively

    SciTech Connect

    Fillmore, D.; Trost, A.

    1989-12-31

    This booklet is written to help the untrained accident investigator perform a type ``C`` accident investigation. It is designed to identify the philosophy of accident investigation, the steps involved, the potential problems in the investigation, and give instruction for completing the DOE 5484 X form. A hypothetical accident is analyzed to illustrate the proper investigating and reporting techniques. We must keep in mind that even simple accidents should use the same analytical ideas or techniques -- scale the accident investigation to conform to the consequence if the accident is not resolved.

  18. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Previous TTI Retreats The CCR Tenure Track Investigator Committee sponsors scientific retreat for all tenure-track investigators.Visit 2013 Retreat for information on this year's retreat. Retreat Archives To view the agendas, presentations, and other mat

  19. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    TTI Retreats The CCR Tenure Track Investigator Committee sponsors scientific retreat for all tenure-track investigators. Information on the 2016 Retreat will be posted once available. Retreat Archives To view the agendas, presentations, and other material

  20. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Courses and Mentorship Courses for Tenure-Track Investigators There are several courses that are tailored specifically for NIH tenure-track investigators, and these courses have been generally well received by your peers. The course shown below is sponsor

  1. Investigating Your Environment. Student Handbook.

    ERIC Educational Resources Information Center

    Biological Sciences Curriculum Study, Boulder, CO.

    This handbook is designed to encourage students to investigate their environment. The techniques of investigative studies are explained and the means of implementing them are discussed. Environmental problems such as air and water quality, noise pollution, land use, and population studies are the suggested targets of the students' investigations.

  2. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    To ensure that you receive all e-mail messages that are important to CCR tenure-track investigator as well as messages that are sent out to all CCR principal investigators, you must first be added to 2 CCR listservs: CCR Tenure-Track Investigator listserv

  3. Physics. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 36 physics investigations which focus on concepts related to: movement; vectors; falling objects; force and acceleration; a

  4. Physics. Student Investigations and Readings. Investigations in Natural Science.

    ERIC Educational Resources Information Center

    Renner, John W.; And Others

    Investigations in Natural Science is a program in secondary school biology, chemistry, and physics based upon the description of science as a quest for knowledge, not the knowledge itself. This student manual contains the 36 physics investigations which focus on concepts related to: movement; vectors; falling objects; force and acceleration; a…

  5. Accident/Mishap Investigation System

    NASA Technical Reports Server (NTRS)

    Keller, Richard; Wolfe, Shawn; Gawdiak, Yuri; Carvalho, Robert; Panontin, Tina; Williams, James; Sturken, Ian

    2007-01-01

    InvestigationOrganizer (IO) is a Web-based collaborative information system that integrates the generic functionality of a database, a document repository, a semantic hypermedia browser, and a rule-based inference system with specialized modeling and visualization functionality to support accident/mishap investigation teams. This accessible, online structure is designed to support investigators by allowing them to make explicit, shared, and meaningful links among evidence, causal models, findings, and recommendations.

  6. Investigating Your Environment. Teachers' Handbook.

    ERIC Educational Resources Information Center

    Biological Sciences Curriculum Study, Boulder, CO.

    This teachers' handbook outlines the philosophy of this program, the methods of teaching it, and the information needed to perform the investigations. The purpose of this program is to encourage students to identify an environmental area to work in and to provide them with the tools to investigate it. The program fosters the idea of unsupervised

  7. Rules of Procedure for Investigation.

    ERIC Educational Resources Information Center

    National Education Association, Washington, DC. Commission on Professional Rights and Responsibilities.

    Among the functions of the Commission on Professional Rights and Responsibilities of the NEA is the investigation of cases of alleged unethical conduct by members of the teaching profession. The rules of procedure for investigations presented in this document are intended to assure all parties in a conflict of their individual rights of procedural

  8. ENGINEERING CONSIDERATIONS: WATERBORNE DISEASE INVESTIGATIONS

    EPA Science Inventory

    As part of a disease outbreak investigation involving drinking water, an engineering investigation may be necessary to determine how or why the pathogen of concern was able to get to the consumer. In many of the US outbreaks, the survival of the pathogen was dependent on multiple...

  9. Four Investigations of Animal Behavior.

    ERIC Educational Resources Information Center

    Cheverton, John

    1997-01-01

    Describes four techniques for investigating animal behavior in situations where it is relatively easy to obtain meaningful data. Presents investigations for attention responses and habituation of domestic animals to sound stimuli, interaction of lambs and ewes, behavior of lambs in a simple T-maze, and vigilance in birds at a feeder. (JRH)

  10. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Tenure Track Investigator Index Click here to view the Tenure-Track Investigator (TTI) Index  page. If your name is not listed on this index; please contact Ave Cline so that she can set up a Web site for you. Updating Your Web siteYour NIH login will all

  11. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Your TTI representatives are a team of volunteers who try to identify and help address the specific needs of the tenure track investigators, and serve as a voice between the TTI community (or an individual investigator) and the NCI administration. New mem

  12. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Welcome to the Tenure Track Investigator (TTI) Community! The NCI Tenure-Track Investigator Committee (TTIC) is a peer-support organization for all NCI TTIs. Our goal is to help you build a strong research program and successfully navigate the tenure proc

  13. Updated CCPS Investigation Guidelines book.

    PubMed

    Philley, J; Pearson, K; Sepeda, A

    2003-11-14

    Incident investigation standards and performance criteria continue to improve. In recognition, the Center for Chemical Process Safety (CCPS) undertook a major project to upgrade and update the Incident Investigation Guidelines originally published in 1992. These significantly expanded guidelines provide a practical resource for effective investigation of process-related incidents, and reflect changes in good practices and expectations of regulators. This paper highlights the content of the new guidelines with special emphasis on what is new and improved. Entirely new chapters address the topics of legal considerations, the near-miss event, and continuous improvement of the investigation system. The objective of the guidelines is to allow chemical process organizations to develop and implement an incident investigation management system that is effective in identifying underlying causes. PMID:14602405

  14. Investigation of transient overvoltages in heavily meshed low-voltage underground distribution networks

    NASA Astrophysics Data System (ADS)

    Salcedo Ulerio, Reynaldo Odalis

    The analysis of overvoltages in electrical distribution networks is of considerable significance since they may damage the power system infrastructure and the associated electrical equipment. Overvoltages in distribution networks arise due to switching transients, resonance, lightning strikes and ground faults, among other causes. The operation of network protectors (NWP), low voltage circuit breakers with directional power relay, in a secondary network prevents the continuous flow of reverse power. There are three modes of operation for the network protectors: sensitive, time delayed, and insensitive. In case of a fault, although all of the network protectors sense the fault at the same time, their operation is not simultaneous. Many of them open very quickly with opening times similar to those of the feeder breaker. However, some operate a few cycles later, others take several seconds to open and a few might even fail to operate. Therefore, depending on the settings of the network protectors, faults can last for significantly long time due to backfeeding of current from the low voltage (LV) network into the medium voltage (MV) network. In this work, low voltages are defined as 208V/460V and medium voltage are defined as 25kV/35kV. This thesis presents overvoltages which arise because of the occurrence of a single-line-to-ground (SLG) fault on the MV side (connected in delta) of the system. The thesis reveals that overvoltage stresses are imposed on insulation, micro-processor controlled equipment, and switching devices by overvoltages during current backfeeding. Also, it establishes a relationship between overvoltage magnitude, its duration, and the network loading conditions. Overvoltages above 3 p.u. may be developed as a result of a simultaneous occurrence of three phenomena: neutral displacement, Ferranti effect, and magnetic current chopping. Furthermore, this thesis exposes the possibility of occurrence of the ferro-resonance phenomena in a distribution network having secondary grid, making the study of extreme importance especially in the case of a misoperating network protector. The test systems for both studies were designed following the conventional distribution network with secondary grid, similar to those in the New York City Area. Simulations were performed using the electro-magnetic transient program revised version (EMTP-RV) considering detailed representation of system components as well as the non-linear magnetization and losses of transformers.

  15. PMB Investigator Registration Expiration Date

    Cancer.gov

    Skip to Content Home | Investigator Resources | Protocol Development | Initiatives/Programs/Collaborations | Links to More Resources | Funding Opportunities | About CTEP Home | Sitemap | Contact CTEP Search this site Pharmaceutical Management Branch

  16. Investigation of ultraviolet interstellar extinction

    NASA Technical Reports Server (NTRS)

    Payne-Gaposchkin, C.; Haramundanis, K. L.

    1973-01-01

    The progress made during the past six months in utilizing Celescope OAO-2 data in a study of extinction is reported along with conclusions drawn from each inquiry. Areas recommended for further investigation are indicated.

  17. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    Purpose Chalk Talks are modeled after typical faculty lunches in university departments. These are monthly meetings where tenure track investigators discuss their project ideas and get suggestions and feedback from each other in an informal and confidenti

  18. Tenure Track Investigator Committee (TTIC)

    Cancer.gov

    In 2005 a survey was sent to all CCR tenure track investigators. Click here to view the survey results. Based on the responses, three areas of major concern were identified: Information Resources Mentoring Strategies to address these problems were drafted

  19. COFS 1 Guest Investigator Program

    NASA Technical Reports Server (NTRS)

    Fontana, Anthony; Wright, Robert L.

    1986-01-01

    The process for selecting guest investigators for participation in the Control of Flexible Structures (COFS)-1 program is described. Contracts and grants will be awarded in late CY87. A straw-man list of types of experiments and a distribution of the experiments has been defined to initiate definition of an experiments package which supports development and validation of control structures interaction technology. A schedule of guest investigator participation has been developed.

  20. Minimizing liability during internal investigations.

    PubMed

    Morris, Cole

    2010-01-01

    Today's security professional must appreciate the potential landmines in any investigative effort and work collaboratively with others to minimize liability risks, the author points out. In this article he examines six civil torts that commonly arise from unprofessionally planned or poorly executed internal investigations-defamation, false imprisonment. intentional infliction of emotional distress, assault and battery, invasion of privacy, and malicious prosecution and abuse of process. PMID:20873494

  1. Los Alamos Laser Eye Investigation.

    SciTech Connect

    Odom, C. R.

    2005-01-01

    A student working in a laser laboratory at Los Alamos National Laboratory sustained a serious retinal injury to her left eye when she attempted to view suspended particles in a partially evacuated target chamber. The principle investigator was using the white light from the flash lamp of a Class 4 Nd:YAG laser to illuminate the particles. Since the Q-switch was thought to be disabled at the time of the accident, the principal investigator assumed it would be safe to view the particles without wearing laser eye protection. The Laboratory Director appointed a team to investigate the accident and to report back to him the events and conditions leading up to the accident, equipment malfunctions, safety management causal factors, supervisory and management action/inaction, adequacy of institutional processes and procedures, emergency and notification response, effectiveness of corrective actions and lessons learned from previous similar events, and recommendations for human and institutional safety improvements. The team interviewed personnel, reviewed documents, and characterized systems and conditions in the laser laboratory during an intense six week investigation. The team determined that the direct and primary failures leading to this accident were, respectively, the principle investigator's unsafe work practices and the institution's inadequate monitoring of worker performance. This paper describes the details of the investigation, the human and institutional failures, and the recommendations for improving the laser safety program.

  2. Smart Site Investigations Save Money!

    NASA Astrophysics Data System (ADS)

    van Staveren, Martin Th; van Seters, Adriaan J.

    More appropriate and well-timed site investigations have a major positive impact in order to reduce the risk of failure. Design and construction of any infrastructure project can be optimised within the project specifications by smart site investigations, in order to save money and time. In this paper this statement is supported by three recent Dutch infrastruc- ture projects, in which smart site investigations resulted in major cost and or time savings. A number of generic key success factors are derived from the presented case histories. These success factors are a risk driven approach of the project, challenging existing codes of practice by state of the art techniques, true consideration of the impact of geological heterogeneity on the project and last but not least, application of hard and soft experience data. These aspects can be defined as the characteristics of smart site investigations. They flourish in particular when applied in combination. In conclusion, more attention towards the strategy and quality of site investigations pays off. It is therefore considered as the responsibility of the European engineering geological and geotechnical communities to send this message with clear examples to the owners, designers and constructors of infra- structure projects. Finally all stake holders of these projects, owners, contractors, engineers, insurance parties and the European societies as a whole, will benefit from the strength of smart site investigations.

  3. Cognitive fallacies and criminal investigations.

    PubMed

    Ditrich, Hans

    2015-03-01

    The human mind is susceptible to inherent fallacies that often hamper fully rational action. Many such misconceptions have an evolutionary background and are thus difficult to avert. Deficits in the reliability of eye-witnesses are well known to legal professionals; however, less attention has been paid to such effects in crime investigators. In order to obtain an "inside view" on the role of cognitive misconceptions in criminalistic work, a list of fallacies from the literature was adapted to criminalistic settings. The statements on this list were rated by highly experienced crime scene investigators according to the assumed likelihood of these errors to appear and their severity of effect. Among others, selective perception, expectation and confirmation bias, anchoring/"pars per toto" errors and "onus probandi"--shifting the burden of proof from the investigator to the suspect--were frequently considered to negatively affect criminal investigations. As a consequence, the following measures are proposed: alerting investigating officers in their training to cognitive fallacies and promoting the exchange of experiences in peer circles of investigators on a regular basis. Furthermore, the improvement of the organizational error culture and the establishment of a failure analysis system in order to identify and alleviate error prone processes are suggested. PMID:25754002

  4. Hurricane Katrina Wind Investigation Report

    SciTech Connect

    Desjarlais, A. O.

    2007-08-15

    This investigation of roof damage caused by Hurricane Katrina is a joint effort of the Roofing Industry Committee on Weather Issues, Inc. (RICOWI) and the Oak Ridge National Laboratory/U.S. Department of Energy (ORNL/DOE). The Wind Investigation Program (WIP) was initiated in 1996. Hurricane damage that met the criteria of a major windstorm event did not materialize until Hurricanes Charley and Ivan occurred in August 2004. Hurricane Katrina presented a third opportunity for a wind damage investigation in August 29, 2005. The major objectives of the WIP are as follows: (1) to investigate the field performance of roofing assemblies after major wind events; (2) to factually describe roofing assembly performance and modes of failure; and (3) to formally report results of the investigations and damage modes for substantial wind speeds The goal of the WIP is to perform unbiased, detailed investigations by credible personnel from the roofing industry, the insurance industry, and academia. Data from these investigations will, it is hoped, lead to overall improvement in roofing products, systems, roofing application, and durability and a reduction in losses, which may lead to lower overall costs to the public. This report documents the results of an extensive and well-planned investigative effort. The following program changes were implemented as a result of the lessons learned during the Hurricane Charley and Ivan investigations: (1) A logistics team was deployed to damage areas immediately following landfall; (2) Aerial surveillance--imperative to target wind damage areas--was conducted; (3) Investigation teams were in place within 8 days; (4) Teams collected more detailed data; and (5) Teams took improved photographs and completed more detailed photo logs. Participating associations reviewed the results and lessons learned from the previous investigations and many have taken the following actions: (1) Moved forward with recommendations for new installation procedures; (2) Updated and improved application guidelines and manuals from associations and manufacturers; (3) Launched certified product installer programs; and (4) Submitted building code changes to improve product installation. Estimated wind speeds at the damage locations came from simulated hurricane models prepared by Applied Research Associates of Raleigh, North Carolina. A dynamic hurricane wind field model was calibrated to actual wind speeds measured at 12 inland and offshore stations. The maximum estimated peak gust wind speeds in Katrina were in the 120-130 mph range. Hurricane Katrina made landfall near Grand Isle, Louisiana, and traveled almost due north across the city of New Orleans. Hurricane winds hammered the coastline from Houma, Louisiana, to Pensacola, Florida. The severe flooding problems in New Orleans made it almost impossible for the investigating teams to function inside the city. Thus the WIP investigations were all conducted in areas east of the city. The six teams covered the coastal areas from Bay Saint Louis, Mississippi, on the west to Pascagoula, Mississippi, on the east. Six teams involving a total of 25 persons documented damage to both low slope and steep slope roofing systems. The teams collected specific information on each building examined, including type of structure (use or occupancy), wall construction, roof type, roof slope, building dimensions, roof deck, insulation, construction, and method of roof attachment. In addition, the teams noted terrain exposure and the estimated wind speeds at the building site from the Katrina wind speed map. With each team member assigned a specific duty, they described the damage in detail and illustrated important features with numerous color photos. Where possible, the points of damage initiation were identified and damage propagation described. Because the wind speeds in Katrina at landfall, where the investigations took place, were less than code-specified design speeds, one would expect roof damage to be minimal. One team speculated that damage to all roofs in the area they examined was less than 10% when improper installation and deterioration were eliminated as causes. Roofs designed to code and installed according to manufacturers recommendations performed very well.

  5. 100 Areas CERCLA ecological investigations

    SciTech Connect

    Landeen, D.S.; Sackschewsky, M.R.; Weiss, S.

    1993-09-01

    This document reports the results of the field terrestrial ecological investigations conducted by Westinghouse Hanford Company during fiscal years 1991 and 1992 at operable units 100-FR-3, 100-HR-3, 100-NR-2, 100-KR-4, and 100-BC-5. The tasks reported here are part of the Remedial Investigations conducted in support of the Comprehensive Environmental Response, compensation, and Liability Act of 1980 studies for the 100 Areas. These ecological investigations provide (1) a description of the flora and fauna associated with the 100 Areas operable units, emphasizing potential pathways for contaminants and species that have been given special status under existing state and/or federal laws, and (2) an evaluation of existing concentrations of heavy metals and radionuclides in biota associated with the 100 Areas operable units.

  6. Hyperthermia and postmortem biochemical investigations.

    PubMed

    Palmiere, Cristian; Mangin, Patrice

    2013-01-01

    The postmortem diagnosis of heat-related deaths presents certain difficulties. Firstly, preterminal or terminal body temperatures are often not available. Additionally, macroscopic and microscopic findings are nonspecific or inconclusive and depend on survival duration after exposure. The diagnosis of hyperthermia is therefore essentially based on scene investigation, the circumstances of death, and the reasonable exclusion of other causes of death. Immunohistochemistry and postmortem biochemical investigations have been performed by several authors in order to better circumstantiate the physiopathology of hyperthermia and provide further information to confirm or exclude a heat-related cause of death. Biochemical markers, such as electrolytes, hormones, blood proteins, enzymes, and neurotransmitters, have been analyzed in blood and other biological fluids to improve the diagnostic potential of autopsy, histology, and immunohistochemistry. The aim of this article is to present a review of the medicolegal literature pertaining to the postmortem biochemical investigations that are associated with heat-related deaths. PMID:22669324

  7. Investigation of the Challenger Accident

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The work of the Presidential Commission on the Space Shuttle Challenger Accident (hereafter referred to as the Rogers Commission) and the work of the National Aeronautics and Space Administration in investigating the causes of the accident were reviewed. In addition to reviewing the five volumes of the Rogers Commission, the entire direct on-line Rogers Commission data base, which included full-text and document retrieval capability was also reviewed. The findings and recommendations contained also include materials submitted for the record, staff investigations, interviews, and trips.

  8. Critical Viscosity of Xenon investigators

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Dr. Dr. Robert F. Berg (right), principal investigator and Dr. Micheal R. Moldover (left), co-investigator, for the Critical Viscosity of Xenon (CVX/CVX-2) experiment. They are with the National Institutes of Standards and Technology, Gaithersburg, MD. The Critical Viscosity of Xenon Experiment (CVX-2) on the STS-107 Research 1 mission in 2002 will measure the viscous behavior of xenon, a heavy inert gas used in flash lamps and ion rocket engines, at its critical point. Although it does not easily combine with other chemicals, its viscosity at the critical point can be used as a model for a range of chemicals.

  9. Network models enlighten harmonics investigations

    SciTech Connect

    Sachs, U.; Tyll, H.; Unger, C.

    1996-04-01

    This article describes how, with the increasing use of controlled power electronic devices, the computer-aided estimation of future harmonic loads is playing an increasingly important role in the planning of network expansion projects and in the connection of new loads. A suitable means of representing network elements and complete network components across the entire frequency range under investigation is required, for the various circuit configurations. This is necessary in order to conduct investigations of this nature and to achieve realistic results within a reasonable time period.

  10. INVESTIGATIONS WITH MERCURY FLOW REACTOR

    EPA Science Inventory

    The objective of the research performed in the Mercury Flow Reactor is to investigate short residence-time (seconds) adsorption of mercury species using different sorbents. Emphasis is placed on the effects of mercury concentration, flow rates, reaction temperatures, exposure ti...

  11. Investigating Gender Differences in Reading

    ERIC Educational Resources Information Center

    Logan, Sarah; Johnston, Rhona

    2010-01-01

    Girls consistently outperform boys on tests of reading comprehension, although the reason for this is not clear. In this review, differences between boys and girls in areas relating to reading will be investigated as possible explanations for consistent gender differences in reading attainment. The review will examine gender differences within the

  12. An Investigation of Milk Sugar.

    ERIC Educational Resources Information Center

    Smith, Christopher A.; Dawson, Maureen M.

    1987-01-01

    Describes an experiment to identify lactose and estimate the concentration of lactose in a sample of milk. Gives a background of the investigation. Details the experimental method, results and calculations. Discusses the implications of the experiment to students. Suggests further experiments using the same technique used in "miniprojects." (CW)

  13. Investigating Gender Differences in Reading

    ERIC Educational Resources Information Center

    Logan, Sarah; Johnston, Rhona

    2010-01-01

    Girls consistently outperform boys on tests of reading comprehension, although the reason for this is not clear. In this review, differences between boys and girls in areas relating to reading will be investigated as possible explanations for consistent gender differences in reading attainment. The review will examine gender differences within the…

  14. Cognitive Grammar and SLA Investigation.

    ERIC Educational Resources Information Center

    Archard, Michel

    1997-01-01

    Seeks to (1) show that the particular form of the model used to represent linguistic production has important consequences for the goals and practices of second-language acquisition research, and (2) that the theoretical model of Cognitive Grammar represents a valid framework for the investigation of second-language acquisition. (Author/VWL)

  15. Genetic investigations of Meniere's disease.

    PubMed

    Vrabec, Jeffrey T

    2010-10-01

    Meniere's disease remains a disorder of unknown origin despite the collective efforts to determine the pathogenesis, although experts have long recognized that disease development likely has some heritable component. Although genetic studies of Meniere's disease have been inconclusive, increasing knowledge of human genetic structure and mutation and investigative techniques have potential to further understanding of this disorder. PMID:20713249

  16. Investigating Minerals: Promoting Integrated Inquiry

    ERIC Educational Resources Information Center

    Thompson, Rudi; Carmack, Elizabeth

    2007-01-01

    "Mineral Detectives!" is one of eighteen lessons in the "Private Whys?" integrated science unit, which uses a guided inquiry investigation to teach students in grades three through five about the role of minerals in our lives. The University of North Texas developed "Private Whys?" with funding from the Copper Development Association. This lesson

  17. Mobilising Ethnographers Investigating Technologised Learning

    ERIC Educational Resources Information Center

    Landri, Paolo

    2013-01-01

    This paper intends to problematise understandings of the ethnographer's presence in investigating contemporary forms of technologised learning. The ubiquity of new educational technologies raises questions concerning the spaces of education and learning, and challenges, at the same time, the sense of "being there" in terms of the face-to-face

  18. Mobilising Ethnographers Investigating Technologised Learning

    ERIC Educational Resources Information Center

    Landri, Paolo

    2013-01-01

    This paper intends to problematise understandings of the ethnographer's presence in investigating contemporary forms of technologised learning. The ubiquity of new educational technologies raises questions concerning the spaces of education and learning, and challenges, at the same time, the sense of "being there" in terms of the face-to-face…

  19. Campus Life and Government Investigations.

    ERIC Educational Resources Information Center

    Shekleton, James F.

    This paper discusses the proper way to conduct official government investigations on college campuses within the framework of the Fourth Amendment to the United States Constitution which protects against unreasonable searches and seizures. The article emphasizes that this amendment lays the groundwork for the limitations on the exercise of

  20. Investigating Evolution with Living Plants.

    ERIC Educational Resources Information Center

    Schlessman, Mark A.

    1997-01-01

    Describes two investigative labs that use live plants to illustrate important biological principles, include quantitative analysis, and require very little equipment. Each lab is adaptable to a variety of class sizes, course contents, and student backgrounds. Topics include the evolution of flower size in Mimulus and pollination of Brassicas. (DDR)

  1. Investigating Minerals: Promoting Integrated Inquiry

    ERIC Educational Resources Information Center

    Thompson, Rudi; Carmack, Elizabeth

    2007-01-01

    "Mineral Detectives!" is one of eighteen lessons in the "Private Whys?" integrated science unit, which uses a guided inquiry investigation to teach students in grades three through five about the role of minerals in our lives. The University of North Texas developed "Private Whys?" with funding from the Copper Development Association. This lesson…

  2. 78 FR 64026 - Investigative Hearing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... factual information for the ongoing investigation into two Metro-North Railroad accidents that occurred in... Friday, May 17, 2013, at 6:01 p.m. eastern daylight time, eastbound Metro-North Railroad passenger train... number 4 and was struck by westbound Metro-North Railroad passenger train 1581 (departing New...

  3. Investigations on Multiplication of Fractions.

    ERIC Educational Resources Information Center

    Sai, Khoo Phon; Inder, Walter R. D.

    1984-01-01

    Three different models with continuous materials, discontinuous materials, and number lines were used to study the operation concept in six investigations on multiplication with fractions with pupils aged 11-12 in a Penang International School. All approaches could be understood by pupils, but they preferred the area and fractional models. (MNS)

  4. Visualizing Chemistry: Investigations for Teachers.

    ERIC Educational Resources Information Center

    Ealy, Julie B.; Ealy, James L., Jr.

    This book contains 101 investigations for chemistry classrooms. Topics include: (1) Physical Properties; (2) Reactions of Some Elements; (3) Reactions Involving Gases; (4) Energy Changes; (5) Solutions and Solubility; (6) Transition Metals and Complex Ions; (7) Kinetics and Equilibrium; (8) Acids and Bases; (9) Oxidation-Reduction; (10)

  5. An investigation of empennage buffeting

    NASA Technical Reports Server (NTRS)

    Lan, C. E.; Lee, I. G.

    1986-01-01

    Progress in the investigation of empennage buffeting in reviewed. In summary, the following tasks were accomplished: relevant literatures was reviewed; equations for calculating structural response were formulated; root-mean-square values of root bending moment for a 65-degree rigid delta wing were calculated and compared with data; and a water-tunnel test program for an F-18 model was completed.

  6. Why Are Mathematical Investigations Important?

    ERIC Educational Resources Information Center

    Quinnell, Lorna

    2010-01-01

    "Research studies show that when students discover mathematical ideas and invent mathematical procedures, they have a stronger conceptual understanding of connections between mathematical ideas." Flewelling and Higginson state that inquiry, investigations, and problem solving "give students the opportunity to use their imagination and to get into

  7. Investigating University-School Partnerships

    ERIC Educational Resources Information Center

    Nath, Janice, Ed.; Guadarrama, Irma N., Ed.; Ramsey, John, Ed.

    2011-01-01

    Investigating University-School Partnerships: A Volume in Professional Development School Research, the fourth book in the PDS Research Series developed by the same editors, includes a collection of organized papers that represent the best and latest examples of practitioner thinking, research, and program design and evaluation in the field at the…

  8. The Glast Guest Investigator Program

    SciTech Connect

    Band, David L.

    2007-07-12

    We provide an overview of the GLAST Guest Investigator (GI) program, which will support basic research relevant to the GLAST mission in yearly cycles beginning approximately two months after launch. Current details about the GLAST GI program will always be posted on the GLAST Science Support Center (GSSC) website: http://glast.gsfc.nasa.gov/ssc/.

  9. Clinical investigations in children's endocrinology.

    PubMed

    Paul, Siba Prosad; Cannon, Anna; Davies, Kate; Collin, Jacqueline

    2016-02-01

    IN OCTOBER last year, Nursing Children and Young People published a continuing professional development article on understanding clinical investigations in children's endocrinology. The article is part of a series highlighting the work of nurses working in the specialism of endocrinology. PMID:26856572

  10. Police close unsolved 'climategate' investigation

    NASA Astrophysics Data System (ADS)

    Lavender, Gemma

    2012-09-01

    Police in Norfolk in the UK have closed an investigation into the hacking of e-mails at the University of East Anglia's Climate Research Unit (CRU) after admitting that they will not be able to find the hackers who broke into CRU computer servers.

  11. IMPROVING WATERBORNE DISEASE OUTBREAK INVESTIGATIONS

    EPA Science Inventory

    This article summarizes the discussions and conclusions of a workshop held December 7-8, 1998, to consider the inherent limitations and weaknesses of waterborne outbreak investigations and make recommendations for their improvement. In recent years, an increased number of suspec...

  12. Investigating Form-Focused Instruction.

    ERIC Educational Resources Information Center

    Ellis, Rod

    2001-01-01

    Provides an historical sketch of form-focused instruction research, defines what is meant by form-focused instruction, and discusses the main research methods that have been used to investigate form-focused instruction in terms of a broad distinction between confirmatory and interpretive research. (Author/VWL)

  13. Investigating University-School Partnerships

    ERIC Educational Resources Information Center

    Nath, Janice, Ed.; Guadarrama, Irma N., Ed.; Ramsey, John, Ed.

    2011-01-01

    Investigating University-School Partnerships: A Volume in Professional Development School Research, the fourth book in the PDS Research Series developed by the same editors, includes a collection of organized papers that represent the best and latest examples of practitioner thinking, research, and program design and evaluation in the field at the

  14. Scientific Investigation with the SJCSI

    NASA Astrophysics Data System (ADS)

    Berbey, E.; Delpeyroux, G.; Douay, E.; Juchereau, C.; Garavet, O.

    2012-04-01

    Scientific Investigation with the SJCSI (Saint Jean* Crime Scene Investigation) Our work, which we have been teaching for 3 years, consists of a scientific investigation. We create a case from A to Z and then our students (15 to 16 years old) are meant to collect samples and clues from a reconstituted crime scene and then have to catch the culprit thanks to laboratory tests crossing four subjects: Physics and Chemistry, Biology, Math and English. I'm a biology teacher and I work with 3 other teachers in my school. The objectives of these activities are: • Make sciences more attractive by putting them into a context of crime investigation. • Use science techniques to find a culprit or to clear a suspect. • To acquire scientific knowledge. • Realize that the different scientific subjects complement each other to carry out a survey. • Use English language and improve it. The investigation consists of doing experiments after collecting different samples and clues on the crime scene. Examples of Biology experimentation: • Detecting the origin of the blood samples found on the crime scene. Students observe blood samples with a microscope and compare the characteristics to those of human blood found on the web. They discover that blood samples found aren't human blood because the red cells have a nucleus. By using the information given in the scenario, they discover that blood sample belongs to the parrot of a suspect. Students, also take a photo of their microscopic preparations, add title and caption and so they learn the cell's structure and the characteristics of blood cells. • In another case, students have to study the blood sample found under the victims fingernails. They observe blood preparation and compare it to the blood of a suspect who has a genetic disease: drepanocytosis. So, they discover the characteristics of blood cells by comparing them to sickle cells. • DNA electrophoresis to identify DNA found, for example, on the gun. • Blood type identification. They discover how blood types work, the different antigens in the plasma and antibodies on the red cells. In three years, we have solved 3 different cases. Here is the link to our website: https://sites.google.com/site/websvtberbey/mps---science-et-investigation-policiere *Saint Jean is the name of our secondary school.

  15. Experimental investigations of multilayer insulation

    NASA Astrophysics Data System (ADS)

    Bapat, S. L.; Narayankhedkar, K. G.; Lukose, T. P.

    1990-08-01

    Multilayer insulation (MLI), using alternate layers of shield and spacer in high vacuum, is the most effective cryogenic insulation developed to date. Due to unpredictable changes in parameters such as winding pressure, uniform contact pressure and interstitial pressure, accurate theoretical prediction of MLI performance is very difficult. Thus, an experimental investigation has been carried out on a few indigenous MLI materials. The investigations are centred on the influence of the number of layers and layer density, with the cold boundary at the same temperature as liquid nitrogen. The experiments have been carried out using a cylindrical vessel with guard vessels on the top and bottom flat surfaces. The interstitial pressure, which depends on conditions pertaining to specific parameters, such as outgassing rate of materials, cryopumping speed and time for evacuation, has also been measured. The results are compared with those obtained from a theoretical analysis carried out for the same combination of shield and spacer materials.

  16. Incident reporting: the bureau investigation.

    PubMed

    Mains, Paul

    2015-01-01

    The Bureau Investigation (BI) is a type of report that lends itself to the internal complaints often generated within a bureaucracy, the author reports, and ranges from discourtesy complaints on a single shift or a single officer to the more complex, sensitive inquiries called for by the senior administration. In this article he explores the many facets of the BI which must be mastered. PMID:26647506

  17. Optical investigation of Comet Halley

    NASA Technical Reports Server (NTRS)

    Jewitt, D. C.

    1986-01-01

    The optical properties of comet p/Halley are being investigated. Initial research has revealed the basic characteristics of the nucleus and provided unique insights into the formation and structure of the coma and the plasma tail. The study is among the most intensive conducted for any comet. The results from comet p/Halley may be useful in the interpretation of results from other comets.

  18. Rosetta Radio Science Investigations (RSI)

    NASA Astrophysics Data System (ADS)

    Paetzold, M.

    The Rosetta Radio Science Investigations (RSI) experiment addresses fundamental aspects of cometary physics such as the mass and bulk density of the nucleus, its gravity field, nucleus size and shape, internal structure, composition and roughness of the nucleus surface, the abundance of large dust grains, the plasma content in the coma and the combined dust and gas mass flux. RSI does not have a dedicated instrument on the Rosetta spacecraft but makes use of the onboard radio subsystem which is responsible for communication between the spacecraft and the ground stations on Earth. The Rosetta radio subsystem is specially equipped with an Ultra-Stable Oscillator (USO) which significantly improves the sensitivity and accuracy of the measurements. The spacecraft is capable of receiving two uplink signals non-simultaneously at either X-band (7100 MHz) or S-band via the High Gain Antenna (HGA). The downlink transmission via the HGA can occur simultaneously at S-band and X-band. RSI is interested in the nondispersive frequency shifts (classical Doppler) and dispersive frequency shifts (due to the ionized propagation medium), the signal power and the polarization of the radio carrier waves. Variations in these parameters will yield information on the motion of the spacecraft, the perturbing forces acting on the spacecraft and the propagation medium. The RSI science objectives are divided into the primary science objectives (a) cometary gravity field investigations, (b) comet nucleus investigations, (c) cometary coma investigations, (d) asteroid mass and bulk density and the secondary science objectives (e) solar corona sounding, (f) a search for gravitational waves at the comet, the asteroids flybys and during cruise.

  19. Rosetta Radio Science Investigations (RSI)

    NASA Astrophysics Data System (ADS)

    Ptzold, M.; Hagermann, A.; Rsi Team

    2003-04-01

    The Rosetta spacecraft, to be launched sometime in the near future, will be equipped with the Rosetta Radio Science Investigations (RSI) experiment. This experiment addresses fundamental aspects of cometary physics such as the mass and bulk density of the nucleus, its gravity field as well as nongravitational forces, nucleus size and shape, internal structure, composition and roughness of the nucleus surface, the abundance of large dust grains, the plasma content in the coma and the combined dust and gas mass flux. RSI does not have a dedicated instrument on the Rosetta spacecraft. Instead, it uses the onboard radio subsystem responsible for communication between the spacecraftand the ground stations on Earth. The Rosetta radio subsystem is specially equipped with an Ultra-Stable Oscillator (USO) which significantly improves the sensitivity and accuracy of the measurements. The spacecraft is capable of receiving two uplink signals at S-band via the Low Gain Antennas (LGAs), or non-simultaneously receiving at either X-band (7100 MHz) or S-band via the HGA. The downlink transmission via the High Gain Antenna (HGA) can occur simultaneously at S-band and X-band or at S-band only via the LGAs. RSI is interested in the nondispersive frequency shifts (classical Doppler) anddispersive frequency shifts (due to the ionized propagation medium), the signal power and the polarization of the radio carrier waves.Variations in these parameters will yield information on the motion of the spacecraft, theperturbing forces acting on the spacecraft and the propagation medium. The primary and secondary science objectives of RSI at the comet, the asteroid flybys (planned in the original mission scenario) and during cruise are divided into categories begin{itemize} cometary gravity field investigations, comet nucleus investigations, cometary coma investigations asteroid mass and bulk density as the prime science objectives, and begin{itemize} solar corona sounding as secondary science objective

  20. Shuttle Fuel Feedliner Cracking Investigation

    NASA Technical Reports Server (NTRS)

    Nesman, Tomas E.; Turner, Jim (Technical Monitor)

    2002-01-01

    This presentation provides an overview of material covered during 'Space Shuttle Fuel Feedliner Cracking Investigation MSFC Fluids Workshop' held November 19-21, 2002. Topics covered include: cracks on fuel feed lines of Orbiter space shuttles, fluid driven cracking analysis, liner structural modes, structural motion in a fluid, fluid borne drivers, three dimensional computational fluid dynamics models, fluid borne drivers from pumps, amplification mechanisms, flow parameter mapping, and flight engine flow map.

  1. Investigational Drugs for Visceral Leishmaniasis

    PubMed Central

    Sundar, Shyam; Chakravarty, Jaya

    2014-01-01

    Introduction The armamentarium of antileishmanials is small. It is further being threatened by development of resistance and decreasing sensitivity to the available drugs. Development of newer drugs are sorely needed. Areas covered Literature search on investigational drugs for visceral leishmaniasis (VL) was done on PubMed. Those candidates with at least in vitro and in vivo activity against leishmania species causing VL were reviewed. Among the investigational drugs the nitroimidazole compound fexinidazole is the one of the few drugs which has reached phase II trials. Although the (S)-PA-824 is in phase II trials for the treatment of tuberculosis its R enantiomer has shown good antileishmanial activity. Development of sitamaquin, which has completed phase II studies has been stopped for VL due to its low efficacy. Many novel delivery system and oral formulations of Amphotericin B which are cheap and less toxic are in investigational stages, and will go a long way in improving the treatment of VL. Expert opinion Very few new drugs have reached the clinical stage in the treatment of this neglected tropical disease. Thus, there is an urgent need for support from public private partnerships to ensure that drug candidates are promptly taken forward into development. PMID:25409760

  2. Investigating a computerized scaffolding software for student designed science investigations

    NASA Astrophysics Data System (ADS)

    Deters, Kelly M.

    Science standards call for students to develop skills in designing their own investigations. However, this is a complex task that is likely to overload the working memory capacities of students, therefore requiring scaffolding. This study investigated the effects of a computerized scaffold for student-designed experiments. Students (N = 102) used the computer program to individually design an experiment during the third week of their high school general chemistry course. Students were randomly assigned to one of four software versions to determine the effects and interaction effects of backwards-design scaffolding and reflective prompts on laboratory report scores. Scaffolding the students in a backwards-design process lead to significantly higher student performance scores for all students when they were not provided with reflective prompts (p = 0.01). For students labeled as academically advanced by their eighth grade science teacher, backwards design increased student performance scores with or without reflective prompts (p = 0.002). Using reflective prompts had no effect on advanced students. The use of multiple reflective prompts caused the effect of the backwards-design scaffolding to disappear with lower-level students.

  3. ENVIRONMENTAL INVESTIGATIONS BRANCH STANDARD OPERATING PROCEDURES, 2001

    EPA Science Inventory

    The Environmental Investigations Standard Operating Procedures details standard field protocol in areas of Hazardous Waste Investigations under CERCLA and RCRA, Clean Water Act Inspections, Clean Air Act investigations, and Criminal Investigations. The manual originated in 1980 ...

  4. Investigation of musicality in birdsong.

    PubMed

    Rothenberg, David; Roeske, Tina C; Voss, Henning U; Naguib, Marc; Tchernichovski, Ofer

    2014-02-01

    Songbirds spend much of their time learning, producing, and listening to complex vocal sequences we call songs. Songs are learned via cultural transmission, and singing, usually by males, has a strong impact on the behavioral state of the listeners, often promoting affiliation, pair bonding, or aggression. What is it in the acoustic structure of birdsong that makes it such a potent stimulus? We suggest that birdsong potency might be driven by principles similar to those that make music so effective in inducing emotional responses in humans: a combination of rhythms and pitches-and the transitions between acoustic states-affecting emotions through creating expectations, anticipations, tension, tension release, or surprise. Here we propose a framework for investigating how birdsong, like human music, employs the above "musical" features to affect the emotions of avian listeners. First we analyze songs of thrush nightingales (Luscinia luscinia) by examining their trajectories in terms of transitions in rhythm and pitch. These transitions show gradual escalations and graceful modifications, which are comparable to some aspects of human musicality. We then explore the feasibility of stripping such putative musical features from the songs and testing how this might affect patterns of auditory responses, focusing on fMRI data in songbirds that demonstrate the feasibility of such approaches. Finally, we explore ideas for investigating whether musical features of birdsong activate avian brains and affect avian behavior in manners comparable to music's effects on humans. In conclusion, we suggest that birdsong research would benefit from current advances in music theory by attempting to identify structures that are designed to elicit listeners' emotions and then testing for such effects experimentally. Birdsong research that takes into account the striking complexity of song structure in light of its more immediate function - to affect behavioral state in listeners - could provide a useful animal model for studying basic principles of music neuroscience in a system that is very accessible for investigation, and where developmental auditory and social experience can be tightly controlled. PMID:24036130

  5. Kinetic investigation of wood pyrolysis

    SciTech Connect

    Thurner, F.; Mann, U.; Beck, S. R.

    1980-06-01

    The objective of this investigation was to determine the kinetics of the primary reactions of wood pyrolysis. A new experimental method was developed which enabled us to measure the rate of gas, tar, and char production while taking into account the temperature variations during the wood heating up. The experimental method developed did not require any sophisticated instruments. It facilitated the collection of gas, tar and residue (unreacted wood and char) as well as accurate measurement of the temperature inside the wood sample. Expressions relating the kinetic parameters to the measured variables were derived. The pyrolysis kinetics was investigated in the range of 300 to 400/sup 0/C at atmospheric pressure and under nitrogen atmosphere. Reaction temperature and mass fractions of gas, tar, and residue were measured as a function of time. Assuming first-order reactions, the kinetic parameters were determined using differential method. The measured activation energies of wood pyrolysis to gas, tar, and char were 88.6, 112.7, and 106.5 kJ/mole, respectively. These kinetic data were then used to predict the yield of the various pyrolysis products. It was found that the best prediction was obtained when an integral-mean temperature obtained from the temperature-time curve was used as reaction temperature. The pyrolysis products were analyzed to investigate the influence of the pyrolysis conditions on the composition. The gas consisted mainly of carbon dioxide, carbon monoxide, oxygen, and C/sub 3//sup +/-compounds. The gas composition depended on reaction time as well as reactor temperature. The tar analysis indicated that the tar consisted of about seven compounds. Its major compound was believed to be levoglucosan. Elemental analysis for the char showed that the carbon content increased with increasing temperature.

  6. 32 CFR 637.6 - Customs investigations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... CRIMINAL INVESTIGATIONS MILITARY POLICE INVESTIGATION Investigations 637.6 Customs investigations. (a... an MP customs investigation is no longer a member of the U.S. Army, the investigation will be terminated, a final report submitted indicating the subject was released from the U.S. Army, and...

  7. 32 CFR 637.6 - Customs investigations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... CRIMINAL INVESTIGATIONS MILITARY POLICE INVESTIGATION Investigations 637.6 Customs investigations. (a... an MP customs investigation is no longer a member of the U.S. Army, the investigation will be terminated, a final report submitted indicating the subject was released from the U.S. Army, and...

  8. 32 CFR 637.6 - Customs investigations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... CRIMINAL INVESTIGATIONS MILITARY POLICE INVESTIGATION Investigations 637.6 Customs investigations. (a... an MP customs investigation is no longer a member of the U.S. Army, the investigation will be terminated, a final report submitted indicating the subject was released from the U.S. Army, and...

  9. 32 CFR 637.6 - Customs investigations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... CRIMINAL INVESTIGATIONS MILITARY POLICE INVESTIGATION Investigations 637.6 Customs investigations. (a... an MP customs investigation is no longer a member of the U.S. Army, the investigation will be terminated, a final report submitted indicating the subject was released from the U.S. Army, and...

  10. 32 CFR 637.6 - Customs investigations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... CRIMINAL INVESTIGATIONS MILITARY POLICE INVESTIGATION Investigations 637.6 Customs investigations. (a... an MP customs investigation is no longer a member of the U.S. Army, the investigation will be terminated, a final report submitted indicating the subject was released from the U.S. Army, and...

  11. QENS investigation of filled rubbers

    NASA Astrophysics Data System (ADS)

    Triolo, A.; Lo Celso, F.; Negroni, F.; Arrighi, V.; Qian, H.; Lechner, R. E.; Desmedt, A.; Pieper, J.; Frick, B.; Triolo, R.

    The polymer segmental dynamics is investigated in a series of silica-filled rubbers. The presence of inert fillers in polymers greatly affects the mechanical and physical performance of the final materials. For example, silica has been proposed as a reinforcing agent of elastomers in tire production. Results from quasielastic neutron scattering and Dynamic Mechanical Thermal Analysis (DMTA) measurements are presented on styrene-ran-butadiene rubber filled with silica. A clear indication is obtained of the existence of a bimodal dynamics, which can be rationalized in terms of the relaxation of bulk rubber and the much slower relaxation of the rubber adsorbed on the filler surface.

  12. Soldering In Space Investigation Video

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This video captures Mike Fincke melting solder during the first set of planned In-Space Soldering Investigation (ISSI) experiments onboard the International Space Station (ISS). In the video, Fincke touches the tip of the soldering iron to a wire wrapped with rosin-core solder. Review of the experiment video revealed melting kinetics, wetting characteristics, and equilibrium shape attainment of the solder charge. Samples returned to Earth were examined for porosity and flux distribution as well as microstructural development. ISSI's purpose was to find out how solder behaves in a weightless environment and promote our knowledge of fabrication and repair techniques that might be employed during extended space exploration missions.

  13. Experimental investigation of hypersonic aerodynamics

    NASA Technical Reports Server (NTRS)

    Heinemann, K.; Intrieri, Peter F.

    1987-01-01

    An extensive series of ballistic range tests are currently being conducted at the Ames Research Center. These tests are intended to investigate the hypersonic aerodynamic characteristics of two basic configurations, which are: the blunt-cone Galileo probe which is scheduled to be launched in late 1989 and will enter the atmosphere of Jupiter in 1994, and a generic slender cone configuration to provide experimental aerodynamic data including good flow-field definition which computational aerodynamicists could use to validate their computer codes. Some of the results obtained thus far are presented and work for the near future is discussed.

  14. Dynamics explorer interdisciplinary scientist investigations

    NASA Technical Reports Server (NTRS)

    Kozyra, Janet U.; Nagy, A. F.

    1994-01-01

    This document is a final report on research activities and accomplishments that occurred during the funding period of 10-1-90 through 1-30-94. The focus of our interdisciplinary investigation during the Dynamics Explorer Mission was on the complex coupling processes that tap the magnetic-storm energy, stored in the ring current particle reservoir, and transport this energy into the subauroral, midlatitude and even equatorial ionospheric regions. The transport of energy through the inner magnetosphere and into the underlying ionospheric regions is a critical element in our understanding of the impact of solar and magnetic disturbances on upper atmospheric and ionospheric regions equatorward of the auroral zone.

  15. Alkaline fuel cell performance investigation

    NASA Technical Reports Server (NTRS)

    Martin, R. E.; Manzo, M. A.

    1988-01-01

    An exploratory experimental fuel cell test program was conducted to investigate the performance characteristics of alkaline laboratory research electrodes. The objective of this work was to establish the effect of temperature, pressure, and concentration upon performance and evaluate candidate cathode configurations having the potential for improved performance. The performance characterization tests provided data to empirically establish the effect of temperature, pressure, and concentration upon performance for cell temperatures up to 300 F and reactant pressures up to 200 psia. Evaluation of five gold alloy cathode catalysts revealed that three doped gold alloys had more that two times the surface areas of reference cathodes and therefore offered the best potential for improved performance.

  16. Overview of the Systems Special Investigation Group investigation

    NASA Technical Reports Server (NTRS)

    Mason, James B.; Dursch, Harry; Edelman, Joel

    1993-01-01

    The Long Duration Exposure Facility (LDEF) carried a remarkable variety of electrical, mechanical, thermal, and optical systems, subsystems, and components. Nineteen of the fifty-seven experiments flown on LDEF contained functional systems that were active on-orbit. Almost all of the other experiments possessed at least a few specific components of interest to the Systems Special Investigation Group (Systems SIG), such as adhesives, seals, fasteners, optical components, and thermal blankets. Almost all top level functional testing of the active LDEF and experiment systems has been completed. Failure analysis of both LDEF hardware and individual experiments that failed to perform as designed has also been completed. Testing of system components and experimenter hardware of interest to the Systems SIG is ongoing. All available testing and analysis results were collected and integrated by the Systems SIG. An overview of our findings is provided. An LDEF Optical Experiment Database containing information for all 29 optical related experiments is also discussed.

  17. Proteomic Investigations into Hemodialysis Therapy

    PubMed Central

    Bonomini, Mario; Sirolli, Vittorio; Pieroni, Luisa; Felaco, Paolo; Amoroso, Luigi; Urbani, Andrea

    2015-01-01

    The retention of a number of solutes that may cause adverse biochemical/biological effects, called uremic toxins, characterizes uremic syndrome. Uremia therapy is based on renal replacement therapy, hemodialysis being the most commonly used modality. The membrane contained in the hemodialyzer represents the ultimate determinant of the success and quality of hemodialysis therapy. Membrane’s performance can be evaluated in terms of removal efficiency for unwanted solutes and excess fluid, and minimization of negative interactions between the membrane material and blood components that define the membrane’s bio(in)compatibility. Given the high concentration of plasma proteins and the complexity of structural functional relationships of this class of molecules, the performance of a membrane is highly influenced by its interaction with the plasma protein repertoire. Proteomic investigations have been increasingly applied to describe the protein uremic milieu, to compare the blood purification efficiency of different dialyzer membranes or different extracorporeal techniques, and to evaluate the adsorption of plasma proteins onto hemodialysis membranes. In this article, we aim to highlight investigations in the hemodialysis setting making use of recent developments in proteomic technologies. Examples are presented of why proteomics may be helpful to nephrology and may possibly affect future directions in renal research. PMID:26690416

  18. Kinetic investigation of wood pyrolysis

    SciTech Connect

    Thurner, F.; Mann, U.

    1981-07-01

    The kinetics of wood pyrolysis into gas, tar, and char was investigated in the range of 300 to 400 degrees Celcius at atmospheric pressure. An experimental system which facilitates the monitoring of the actual sample temperature, collection of gas and tar, and measurement of the sample weight loss as a function of time was developed. It has been found that, in the range investigated, wood decomposition into gas, tar, and char can be described by three parallel first-order reactions as suggested by Shafizadeh and Chin (1977). The activation energies for these reactions are 88.6, 112.7 and 106.5 kJ/mol, respectively, and their frequency factors defined on a mass basis are 8.61 x 10 to the power of 5, 2.47 x 10 to the power of 8, and 4.43 x 10 to the power of 7 min-1. The composition of the pyrolysis products was also analyzed. It was found that the gas consists mainly of carbon dioxide, carbon monoxide, oxygen, and C3 + compounds with trace amounts of methane, ethylene, and acetylene. The tar consists of seven compounds with levoglucosan accounting for more than half. The char was analyzed by elemental analysis and it was found that its carbon content increases with increasing reactor temperature. (Refs. 12).

  19. Investigating Functional Dyspepsia in Asia

    PubMed Central

    Lee, Yeong Yeh

    2012-01-01

    The diagnosis of functional dyspepsia (FD) is challenging since it depends largely on symptoms which are often heterogeneous and overlapping. This is particularly so in Asia with many different cultures and languages. Symptom-based diagnosis of FD based on Rome III criteria has not been fully validated and it may not be suitable in some Asian populations. Clinicians often assume that investigations in FD are not rewarding and physiological tests are often not available unless in the research setting. Investigation of alarm features and role of Helicobacter pylori in FD remain controversial but experts agreed that both should be tested. Physiological tests including gastric accommodation and chemical hypersensitivity tests are underutilized in Asia and available studies were few. While experts do not recommend routine clinical use of gastric accommodation tests but they agree that these tests can be advocated if clinically indicated. Empiric therapeutic trial is not currently a diagnostic option. The pathogenesis of FD is still poorly understood and there is a substantial placebo response. As a conclusion, a diagnosis of FD is challenging especially so in the context of Asia and despite the limitations of available physiological tests experts agreed that these tests can be advocated if and when clinically indicated. PMID:22837871

  20. Fundamental Investigations of Airframe Noise

    NASA Technical Reports Server (NTRS)

    Macaraeg, M. G.

    2004-01-01

    An extensive numerical and experimental study of airframe noise mechanisms associated with a subsonic high-lift system has been performed at NASA Langley Research Center (LaRC). Investigations involving both steady and unsteady computations and experiments on a small-scale, part-span flap model are presented. Both surface (steady and unsteady pressure measurements, hot films, oil flows, pressure sensitive paint) and off surface (5 hole-probe, particle-imaged velocimetry, laser velocimetry, laser light sheet measurements) were taken in the LaRC Quiet Flow Facility (QFF) and several hard-wall tunnels up to flight Reynolds number. Successful microphone array measurements were also taken providing both acoustic source maps on the model, and quantitative spectra. Critical directivity measurements were obtained in the QFF. NASA Langley unstructured and structured Reynolds- Averaged Navier-Stokes codes modeled the flap geometries excellent comparisons with surface and offsurface experimental data were obtained. Subsequently, these meanflow calculations were utilized in both linear stability and direct numerical simulations of the flap-edge flow field to calculate unsteady surface pressures and farfield acoustic spectra. Accurate calculations were critical in obtaining not only noise source characteristics, but shear layer correction data as well. Techniques utilized in these investigations as well as brief overviews of results will be given.

  1. Investigating legal aspects of cyberbullying.

    PubMed

    Paul, Simone; Smith, Peter K; Blumberg, Herbert H

    2012-11-01

    In the UK schools are required by law to protect students from bullying; the responsibility of teachers to govern such behaviour has been extended outside the school setting to include cyberbullying. In this investigation, cyberbullying in secondary education is explored from the student perspective using a qualitative method of enquiry. Reported awareness and understanding about the legal aspects of cyberbullying are investigated; consideration is given to legislation, cybercrime, children's rights, school sanctions and safeguarding responsibilities. A total of 197 male and female students aged between 11 and 14 years old participated. Despite the availability of information on guidelines and legislation at national, local, and school level, this does not appear to have reached ground level of the individual student. There is a considerable gap between what students should know and what they report to be aware of with regard to legal aspects of cyberbullying. To address concerns of keeping up with the pace of change in cyberbullying, a collaborative approach is required with young people and adults sharing expertise. PMID:23079364

  2. Investigation of a colloidal damper.

    PubMed

    Suciu, C V; Iwatsubo, T; Deki, S

    2003-03-01

    A novel application of nanotechnology in the field of mechanical engineering, called colloidal damper (CD), is investigated. This device is complementary to the hydraulic damper (HD), having a cylinder-piston construction. Particularly for CD, the hydraulic oil is replaced by a colloidal suspension, which consists of a mesoporous matrix and a lyophobic fluid. In this work, the porous matrix is from silica gel modified by linear chains of n-alkylchlorosilanes and water is considered as an associated working fluid. A design solution from a practical point of view of the CD test rig and the measuring technique of the hysteresis are described. A brief review of the water physical properties relative to the CD concept is presented. Influence of the bonding density, length of the grafted molecule, pore diameter, and particle diameter on the CD hysteresis is investigated for distinctive types and mixtures of silica gels. Temperature variation during functioning is recorded and the CD cycle is interpreted from a thermodynamic standpoint. Variation of the CD dissipated energy and efficiency with pressure, water quantity, and relaxation time is illustrated. Experimental results are justified by the analysis of the water flow into the porous matrix, CD thermodynamics, and the mechanism of the energy dissipation. Our findings agree with the previously published data. PMID:12651134

  3. Bioanalysis Young Investigator: Sadagopan Krishnan.

    PubMed

    Krishnan, Sadagopan

    2011-05-01

    Supervisor's supporting comments. I am pleased to recommend Sadagopan Krishnan for the Bioanalysis Young Investigator award. Sadagopan is a bright, creative and highly-motivated young bioanalytical chemist. His theses in our laboratory involved the development of electrochemiluminescent arrays for chemical toxicity screening utilizing cytochrome P450 metalloenzymes. He was senior author of a paper in Analytical Chemistry on this that was featured on the cover. He also investigated fundamental properties of human metabolic cytochrome P450s - research was carried out at his own initiative, and explains for the first time the role of iron spin state on enzyme electron transfer rates. He then developed thin films that mimic the natural cytochrome P450 redox cycle for the first time. He worked with several other group members to develop a superparamagnetic labeling scheme for immunosensing of proteins by surface plasmon resonance at unprecedented low levels, down to 10 fg/ml. Sadagopan has also demonstrated strong leadership skills. After his PhD, Sadagopan joined the group of Fraser Armstrong at Oxford University, UK, as a postdoctoral fellow. He is currently expanding his research horizons into the area of biofuel cells. His eventual goal is to join the faculty of a major university and build a world-class research group in bioanalytical chemistry. PMID:21545342

  4. Microgravity Science Glovebox Investigations SUBSA

    NASA Technical Reports Server (NTRS)

    Ostrogorsky, A.; Marin, C.; Vogel, M.; Volz, M. P.; Luz, P.; Jeter, L.; Spivey, Reggie; Duffar, Thierry; Geveden, Rex D. (Technical Monitor)

    2001-01-01

    Solidification Using a Baffle in Sealed Ampoules (SUBSA) is a Microgravity Science Glovebox Investigation manifested for the UF2 flight, on the U.S. Orbiter 111, to the International Space Station (ISS). SUBSA complements the "parent" flight investigation CG13 (Space-and Groundbased Crystal Growth Using a Baffle). During directional solidification, the disk-shaped baffle acts as a partition, creating a small melt zone at the solid-liquid interface. As a result, the level of buoyancy-driven convection at the interface is significantly reduced. In space, the baffle will reduce convection driven by residual micro acceleration. The baffle reduces the Rayleigh number (Ra) of the melt by a factor of 103. The combined effect of the baffle and microgravity will yield a reduction in Ra by a factor of 107 to 109 approaching effectively the acceleration conditions in "nanogravity". The results of ground based tests and numerical modeling will be presented. The furnace for directional solidification (flight hardware and the ground unit) was developed by Tec-Masters Inc. The flight ampoules were produced jointly at Rensselaer, Tec-Masters Inc. and Crystallod Inc.

  5. Investigation of musicality in birdsong

    PubMed Central

    Rothenberg, David; Roeske, Tina C.; Voss, Henning U.; Naguib, Marc; Tchernichovski, Ofer

    2013-01-01

    Songbirds spend much of their time learning, producing, and listening to complex vocal sequences we call songs. Songs are learned via cultural transmission, and singing, usually by males, has a strong impact on the behavioral state of the listeners, often promoting affiliation, pair bonding, or aggression. What is it in the acoustic structure of birdsong that makes it such a potent stimulus? We suggest that birdsong potency might be driven by principles similar to those that make music so effective in inducing emotional responses in humans: a combination of rhythms and pitches —and the transitions between acoustic states—affecting emotions through creating expectations, anticipations, tension, tension release, or surprise. Here we propose a framework for investigating how birdsong, like human music, employs the above “musical” features to affect the emotions of avian listeners. First we analyze songs of thrush nightingales (Luscinia luscinia) by examining their trajectories in terms of transitions in rhythm and pitch. These transitions show gradual escalations and graceful modifications, which are comparable to some aspects of human musicality. We then explore the feasibility of stripping such putative musical features from the songs and testing how this might affect patterns of auditory responses, focusing on fMRI data in songbirds that demonstrate the feasibility of such approaches. Finally, we explore ideas for investigating whether musical features of birdsong activate avian brains and affect avian behavior in manners comparable to music’s effects on humans. In conclusion, we suggest that birdsong research would benefit from current advances in music theory by attempting to identify structures that are designed to elicit listeners’ emotions and then testing for such effects experimentally. Birdsong research that takes into account the striking complexity of song structure in light of its more immediate function – to affect behavioral state in listeners – could provide a useful animal model for studying basic principles of music neuroscience in a system that is very accessible for investigation, and where developmental auditory and social experience can be tightly controlled. PMID:24036130

  6. Phytochemical investigation of Turnera diffusa.

    PubMed

    Zhao, Jianping; Pawar, Rahul S; Ali, Zulfiqar; Khan, Ikhlas A

    2007-02-01

    A phytochemical investigation of Turnera diffusa afforded 35 compounds, comprised of flavonoids, terpenoids, saccharides, phenolics, and cyanogenic derivatives, including five new compounds (1-5) and a new natural product (6). These compounds were characterized as luteolin 8-C-E-propenoic acid (1), luteolin 8-C-beta-[6-deoxy-2-O-(alpha-l-rhamnopyranosyl)-xylo-hexopyranos-3-uloside] (2), apigenin 7-O-(6' '-O-p-Z-coumaroyl-beta-d-glucopyranoside) (3), apigenin 7-O-(4' '-O-p-Z-coumaroylglucoside) (4), syringetin 3-O-[beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside] (5), and laricitin 3-O-[beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside] (6). Their structures were determined by spectroscopic and chemical methods. PMID:17284070

  7. Acoustical investigation of lead chalcogenides

    NASA Astrophysics Data System (ADS)

    Raju, Krishna Murti; Srivastava, Rudra Kant; Arun Kumar; Suneeta Devi

    2010-12-01

    Temperature dependence of ultrasonic attenuation due to phonon-phonon interaction and thermo-elastic loss have been studied in NaCl-type lead monochalcogenides (PbS, PbSe and PbTe) in the temperature range 100-500 K for longitudinal and shear modes of propagation along <1 0 0>, <1 1 0> and <1 1 1> directions. Second and third order elastic constants have been evaluated using electrostatic and Brn repulsive potentials and taking interactions up to next nearest neighbours. These values have been utilized to obtain attenuation coefficient for lead compounds. In the present investigation, it has been found that phonon-phonon (p-p) interaction is the dominant cause for ultrasonic attenuation. The possible implications of the results have been discussed.

  8. Selling Complementary Patents: Experimental Investigation

    SciTech Connect

    Bjornstad, David J; Santore, Rudy; McKee, Michael

    2010-02-01

    Production requiring licensing groups of complementary patents implements a coordination game among patent holders, who can price patents by choosing among combinations of fixed and royalty fees. Summed across patents, these fees become the total producer cost of the package of patents. Royalties, because they function as excise taxes, add to marginal costs, resulting in higher prices and reduced quantities of the downstream product and lower payoffs to the patent holders. Using fixed fees eliminates this inefficiency but yields a more complex coordination game in which there are multiple equilibria, which are very fragile in that small mistakes can lead the downstream firm to not license the technology, resulting in inefficient outcomes. We report on a laboratory market investigation of the efficiency effects of coordinated pricing of patents in a patent pool. We find that pool-like pricing agreements can yield fewer coordination failures in the pricing of complementary patents.

  9. Investigations on the Aridity Paradox

    NASA Astrophysics Data System (ADS)

    Donohue, R. J.; Roderick, M. L.

    2014-12-01

    How global aridity might change in the immediate future is an important question. Several recent analyses have concluded that aridity will, in general, increase over land primarily because of increasing vapour pressure deficit. Taken at face value that result is difficult to understand because a warmer world is also anticipated to be a moister world. For example, at the global scale, climate model projections are for increasing rainfall and runoff. In this presentation we investigate this seeming paradox. We find that the previous analyses have not accounted for the biological impacts of elevated CO2 and when that is incorporated, the climate model projections are for a modest reduction in meteorological and hydrologic aridity and for larger reductions in biological aridity.

  10. Future Investigations with New Facilities

    NASA Astrophysics Data System (ADS)

    Boehnhardt, Hermann

    At the beginning of the third millenium more than 700 m2 of mirror collecting power at 6-10m class telescopes combined with more than 20 sophisticated instruments will be available for astronomical research, and last but not least, also for the investigation of minor bodies in the outer solar system (MBOSS) from the ground. The detector and computer technology will support wide field applications at large to medium size telescopes. Telescopes operated in Earth orbit open access to almost all wavelength regions from the high energy to the coolest regimes in space. Large radio telescope arrays for the sub-mm wavelength region are in the planning phase. A spacecraft mission to Pluto/Charon and possibly to another Transneptunian object (TNO) appears over the horizon for future research.

  11. The Giotto magnetic field investigation

    NASA Technical Reports Server (NTRS)

    Neubauer, F. M.; Musmann, G.; Acuna, M. H.; Burlaga, L. F.; Ness, N. F.; Mariani, F.; Wallis, M.; Ungstrup, E.; Schmidt, H.

    1983-01-01

    The Giotto spacecraft will carry sensors for investigating the interplanetary magnetic field while en route and the interaction between the solar wind magnetoplasma and Halley's Comet neutral gas outflow during close approach. Giotto will carry an outboard biaxial fluxgate system and inboard electronics. The instrumentation draws 1.2 kW and weighs 1.31 kg. Sampling rates will be 28/sec during close encounter, covering selectable ranges from 16 nT to 65,535 nT. In-flight calibration techniques are under development to ensure magnetic cleanliness will be obtained. Measurements are also planned of the inbound bow shock, the magnetosheath and the cometary ionopause. The data will be collected as close as 1000 km from the comet surface.

  12. Investigation of ultraviolet interstellar extinction

    NASA Technical Reports Server (NTRS)

    Payne, C.; Haramundanis, K. L.

    1973-01-01

    Results concerning interstellar extinction in the ultraviolet are reported. These results were initially obtained by using data from main-sequence stars and were extended to include supergiants and emission stars. The principal finding of the analysis of ultraviolet extinction is not only that it is wavelength dependent, but that if changes with galactic longitude in the U3 passband (lambda sub eff = 1621 A); it does not change significantly in the U2 passband (lambda sub eff = 2308 A). Where data are available in the U4 passband (lambda sub eff = 1537 A), they confirm the rapid rise of extinction in the ultraviolet found by other investigators. However, in all cases, emission stars must be used with great caution. It is important to realize that while extinction continues to rise toward shorter wavelengths in the ultraviolet, including the shortest ultraviolet wavelengths measured (1100 A), it no longer plays an important role in the X-ray region (50 A).

  13. Investigation and management of dysphagia.

    PubMed

    Dusick, Anna

    2003-12-01

    Dysphagia is a common finding in infants and children with neuromuscular disabilities. Dysphagia may be developmental, as in the preterm infant, transient, chronic, or progressive. The evaluation of dysphagia must take into account the age of the patient and typical development of feeding and swallowing for that age. The typical abilities seen in neonatal, early infancy, later infancy and early childhood periods vary in sensorimotor skills and feeding efficiency. In addition to knowing the substrate of expected skills by age, knowledge of the neurophysiology of feeding and swallowing is essential to diagnosis. Each physiologic phase of deglutition: oral, pharyngeal, and esophageal can present with symptoms of dysphagia that can guide investigation. Common symptoms of dysphagia include generalized feeding difficulty such as poor efficiency, food refusal and failure to thrive. Specific symptoms include tongue thrust, choking, cough, and oxygen desaturation. The possibility of dysphagia can be identified through a thorough feeding history. Examination initially includes the infant's muscle tone and posture in the head, neck and body. Anomalies of structures of the head and neck must be identified and examined for their effect on function. Next, examination of oral structures for reflexes, tongue movements, and symmetry will identify neurologic abnormalities. Observation of feeding is essential and will reveal signs of dysphagia. Aspiration in the infant can present without specific signs. Respiratory abnormalities or Gastroesophageal reflux can be identified during history or examination. Investigation of dysphagia most commonly includes videofluoroscopy, endoscopy, and ultrasonography. The management of dysphagia requires an individualized approach and will include neurologic, respiratory, nutritional and possibly gastrointestinal management. Six broad areas are identified that must be considered in the management of dysphagia in infants and children. They include: normalization of posture and positioning, adaptation of foods and feeding equipment, oromotor therapy, feeding therapy, nutritional support and management of associated disorders. A team of professionals will assist the parent and child in achieving pleasant feedings to foster appropriate growth and development. PMID:14992457

  14. Rotational Investigation of Tropane Alkaloids

    NASA Astrophysics Data System (ADS)

    Cocinero, Emilio J.; Lesarri, Alberto; Ecija, Patricia; Grabow, Jens-Uwe; Fernández, Jose A.; Castano, Fernando

    2010-06-01

    We report an investigation of the rotational spectrum of several tropane alkaloids using the new Balle-Flygare-type FT-MW spectrometer built at the University of the Basque Country. The initial work focused on the azabicycles of tropinone, scopine and scopoline, vaporized using heating methods. For tropinone the spectrum confirmed the presence of equatorial and axial conformers originated by the inversion of the N-methyl group, with the tropane motif adopting a distorted chair configuration. The determination of substitution and effective structures for the two conformers included the 13C, 15N and 18O isotopomers observed in natural abundance. The structures revealed the flexibility and structural changes associated to the N-methyl inversion, mostly a flattening at the nitrogen atom and a simultaneous rising of the carbonyl group in the axial form. The investigation of scopine gave an intense spectrum, but it was inconsistent with the structural models expected for this molecule. The carrier of the new spectrum was later identified as scopoline, generated in situ by an intramolecular reaction at the moderate temperatures of the nozzle. A single conformation was detected for scopoline, with an ether bridge seriously distorting the tropane motif. E. J. Cocinero, A. Lesarri, P. écija, J.-U. Grabow, J. A. Fernández, F. Castaño, in publication, 2010 E. J. Cocinero, A. Lesarri, P. Écija, J.-U. Grabow, J. A. Fernández, F. Castaño, Phys. Chem. Chem. Phys.,in press, 2010

  15. Spectroscopic investigation of protein corona

    NASA Astrophysics Data System (ADS)

    Choudhary, Poonam

    Nanotechnology has revolutionalized the landscape of modern science and technology, including materials, electronics, therapeutics, bioimaging, sensing, and the environment. Research in the past decade has examined the fate of nanomaterials in vitro and in vivo, as well as the interactions between nanoparticles and biological and ecosystems using primarily toxicological and ecotoxicological approaches. However, due to the versatility in the physical and physicochemical properties of nanoparticles, and due to the vast complexity of their hosting systems, the solubility, transformation, and biocompatibility of nanomaterials are still poorly understood. Nanotechnology has been undergoing tremendous development in recent decades, driven by realized perceived applications of nanomaterials in electronics, therapeutics, imaging, sensing, environmental remediation, and consumer products. Nanoparticles on entering the blood stream undergo an identity change, they become coated with proteins. There are different kind of proteins present in blood. Proteins compete for getting coated over the surface of nanoparticle and this whole entity of proteins coated over nanoparticle surface is called Protein Corona. Proteins tightly bound to the surface of nanoparticle form hard corona and the ones loosely bound on the outer surface form soft corona. This dissertation is aimed at spectroscopic investigation of Protein Corona. Chapter I of this dissertation offers a comprehensive review of the literature based on nanomaterials with the focus on carbon based nanomaterilas and introduction to Protein Corona. Chapter II is based different methods used for Graphene Synthesis,different types of defects and doping. In Chapter III influence of defects on Graphene Protein Corona was investigated. Chapter IV is based on the study of Apoptosis induced cell death by Gold and silver nanoparticles. In vitro study of effect of Protein Corona on toxicity of cells was done.

  16. Investigation of Celestial Solid Analogs

    NASA Technical Reports Server (NTRS)

    Sievers, A. J.

    2003-01-01

    Our far infrared studies of both hydrophobic and hydrophilic aerogel grains have demonstrated that the mm and sub-mm wave absorption produced by the fundamental two level systems (TLS) mechanism represents a more significant contribution for these open grain structures than for bulk amorphous silicate grains. We found that the region with the anomalous temperature dependence of the spectral index due to the TLS excitations can extend in a fluffy material up to 80 per cm, which is well beyond its typical upper limit for bulk glasses. Currently there is no theoretical explanation for this surprising result. The effects of reduced dimensionality on the optical properties of carbonaceous grains have been studied with a systematic investigation of carbon aerogels. This spectroscopic approach has permitted a more reliable determination of the single grain mass normalized absorption coefficient based on the experimentally determined characteristics of the fluffy material rather than on first principles calculations involving the bulk properties of the substance. Our finding is that the electrical connectivity of the material is the main factor affecting its far infrared absorption coefficient. Another one of the main constituents of the interstellar dust, amorphous ice, has been investigated in the mm-wave region both in the high (HDA) and low (LDA) density amorphous phases and as a function of impurities. We found that doping either phase with ionic (LiCl) or molecular (methanol) impurities decreases the difference in the mm-wave absorption coefficient between the HDA and LDA ice phases so that the HDA spectrum can be used as an analog for impure ice absorption in the far infrared spectral region.

  17. 48 CFR 222.406-8 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... investigation, the investigator shall inform the contractor of the general scope of the investigation, and that the investigation will include examining pertinent records and interviewing employees. In conducting the investigation, follow the procedures at PGI 222.406-8(a). (c) Contractor notification....

  18. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Investigation, the District Commander will prepare a written report containing all pertinent information and... Investigation, to the Administrator, Bridge Administration Program. (b) The Preliminary Investigation Report... Investigation Report and make a Preliminary Decision whether or not to undertake a Detailed Investigation and...

  19. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Investigating Official will submit a report containing the findings and conclusions of such investigation to the... 6 Domestic Security 1 2012-01-01 2012-01-01 false Investigation. 13.4 Section 13.4 Domestic... Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  20. 48 CFR 222.406-8 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... investigation, the investigator shall inform the contractor of the general scope of the investigation, and that the investigation will include examining pertinent records and interviewing employees. In conducting the investigation, follow the procedures at PGI 222.406-8(a). (c) Contractor notification....

  1. 48 CFR 222.406-8 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... investigation, the investigator shall inform the contractor of the general scope of the investigation, and that the investigation will include examining pertinent records and interviewing employees. In conducting the investigation, follow the procedures at PGI 222.406-8(a). (c) Contractor notification....

  2. 48 CFR 222.406-8 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... investigation, the investigator shall inform the contractor of the general scope of the investigation, and that the investigation will include examining pertinent records and interviewing employees. In conducting the investigation, follow the procedures at PGI 222.406-8(a). (c) Contractor notification....

  3. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Investigating Official will submit a report containing the findings and conclusions of such investigation to the... 6 Domestic Security 1 2011-01-01 2011-01-01 false Investigation. 13.4 Section 13.4 Domestic... Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  4. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Investigation, the District Commander will prepare a written report containing all pertinent information and... Investigation, to the Administrator, Bridge Administration Program. (b) The Preliminary Investigation Report... Investigation Report and make a Preliminary Decision whether or not to undertake a Detailed Investigation and...

  5. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Investigating Official will submit a report containing the findings and conclusions of such investigation to the... 6 Domestic Security 1 2014-01-01 2014-01-01 false Investigation. 13.4 Section 13.4 Domestic... Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  6. 48 CFR 222.406-8 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... investigation, the investigator shall inform the contractor of the general scope of the investigation, and that the investigation will include examining pertinent records and interviewing employees. In conducting the investigation, follow the procedures at PGI 222.406-8(a). (c) Contractor notification....

  7. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Investigating Official will submit a report containing the findings and conclusions of such investigation to the... 6 Domestic Security 1 2010-01-01 2010-01-01 false Investigation. 13.4 Section 13.4 Domestic... Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  8. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Investigating Official will submit a report containing the findings and conclusions of such investigation to the... 6 Domestic Security 1 2013-01-01 2013-01-01 false Investigation. 13.4 Section 13.4 Domestic... Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  9. 32 CFR 776.84 - Ethics investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 5 2014-07-01 2014-07-01 false Ethics investigation. 776.84 Section 776.84... Complaint Processing Procedures 776.84 Ethics investigation. (a) Whenever an ethics investigation is... ethics investigation: (1) To request a hearing before the investigating officer (IO); (2) To inspect...

  10. 32 CFR 776.84 - Ethics investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 5 2013-07-01 2013-07-01 false Ethics investigation. 776.84 Section 776.84... Complaint Processing Procedures 776.84 Ethics investigation. (a) Whenever an ethics investigation is... ethics investigation: (1) To request a hearing before the investigating officer (IO); (2) To inspect...

  11. 32 CFR 776.84 - Ethics investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 5 2011-07-01 2011-07-01 false Ethics investigation. 776.84 Section 776.84... Complaint Processing Procedures 776.84 Ethics investigation. (a) Whenever an ethics investigation is... ethics investigation: (1) To request a hearing before the investigating officer (IO); (2) To inspect...

  12. 32 CFR 776.84 - Ethics investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Ethics investigation. 776.84 Section 776.84... Complaint Processing Procedures 776.84 Ethics investigation. (a) Whenever an ethics investigation is... ethics investigation: (1) To request a hearing before the investigating officer (IO); (2) To inspect...

  13. Investigation of irradiated soil byproducts.

    PubMed

    Brey, R R; Rodriguez, R; Harmon, J F; Winston, P

    2001-01-01

    The high dose irradiation of windblown soil deposited onto the surface of spent nuclear fuel is of concern to long-term fuel storage stability. Such soils could be exposed to radiation fields as great as 1.08 x 10(-3) C/kg-s (15,000 R/hr) during the 40-year anticipated period of interim dry storage prior to placement at the proposed national repository. The total absorbed dose in these cases could be as high as 5 x 10(7) Gy (5 x 10(9) rads). This investigation evaluated the potential generation of explosive or combustible irradiation byproducts during this irradiation. It focuses on the production of radiolytic byproducts generated within the pore water of surrogate clays that are consistent with those found on the Idaho National Engineering and Environmental Laboratory. Synthesized surrogates of localized soils containing combinations of clay, water, and aluminum samples, enclosed within a stainless steel vessel were irradiated and the quantities of the byproducts generated measured. Two types of clays, varying primarily in the presence of iron oxide, were investigated. Two treatment levels of irradiation and a control were investigated. An 18-Mev linear accelerator was used to irradiate samples. The first irradiation level provided an absorbed dose of 3.9 x 10(5)+/-1.4 x 10(5)Gy (3.9 x 10(7)+/-1.4 x 10(7) rads) in a 3-h period. At the second irradiation level, 4.8 x 10(5)+/-2.0 x 10(5)Gy (4.8 x 10(7)+/-2.0 x 10(7) rads) were delivered in a 6-h period. When averaged over all treatment parameters, irradiated clay samples with and without iron (III) oxide (moisture content = 40%) had a production rate of hydrogen gas that was a strong function of radiation-dose. A g-value of 5.61 x 10(-9)+/-1.56 x 10(-9) mol/J (0.054+/-0.015 molecules/100-eV) per mass of pore water was observed in the clay samples without iron (III) oxide for hydrogen gas production. A g-value of 1.07 x 10(-8)+/-2.91 x 10(-9) mol/J (0.103+0.028 molecules/100-eV) per mass of pore water was observed in the iron (III) oxide containing clay samples for hydrogen gas production. This value was noticeably larger when the samples were spiked with both KCl and KNO3 salts. The ratio of oxygen to nitrogen gas was observed to increase as a function of absorbed dose particularly in the presence of both KCl and KNO3 salts. The creation of radiolytic byproducts produced an observable but small increase in headspace pressure. Temperature increases during irradiation were not observed. Additionally, KCl and KNO3 salts added to the clays enhanced nitrite production as a function of radiation-dose and the type of clay considered. The addition of aluminum to these samples had no statistically discernable impact at the alpha = 0.05 level. Generation of the irradiation products, hydrogen peroxide and hydrogen gas also depended upon the type of clay irradiated and the presence of both KCl and KNO3 salts and the total dose received. PMID:11478625

  14. Investigation of superlattice device structures

    NASA Technical Reports Server (NTRS)

    Gergis, I. S.; Manasevit, H. M.; Lin, A. L.; Jones, A. B.

    1985-01-01

    This report describes the investigation of growth properties, and the structure of epitaxial multilayer Si(Si(1x)Ge(x)) films grown on bulk Silicon Substrates. It also describes the fabrication and characterization of MOSFET and MESFET devices made on these epitaxial films. Films were grown in a CVD reactor using hydrides of Si and Ge with H2 and He as carrier gases. Growth temperatures were between 900 C and 1050 C with most films grown at 1000 C. Layer thickness was between 300A and 2000A and total film thickness was between 0.25 micro m and 7 micro m. The Ge content (X) in the alloy layers was between .05 and 0.2. N-type multilayer films grown on (100) p-type Si showed Hall mobility in the range 1000 to 1500 sq cm/v for an average carrier concentration of approx. 10 to the 16th power/cu cm. This is up to 50% higher than the Hall mobility observed in epitaxial Si films grown under the same conditions and with the same average carrier concentration. The mobility enhancement occurred in films with average carrier concentration (n) from 0.7 x 10 to the 16th power to 2 x 10 to the 17th power/cu cm, and total film thickness greater than 1.0 micro m. No mobility enhancement was seen in n-type multilayer films grown on (111) Si or in p-type multilayer films. The structure of the films was investigated was using SEM, TEM, AES, SIMS, and X-ray double crystal diffraction techniques. The film composition profile (AES, SIMS) showed that the transition region between layers is of the order of about 100A. The TEM examination revealed a well defined layered structure with fairly sharp interfaces and good crystalline quality. It also showed that the first few layers of the film (closest to the substrate) are uneven, most probably due to the initial growth pattern of the epitaxial film where growth occurs first in isolated islands that eventually growth and coalesce. The X-ray diffraction measurement determined the elastic strain and strain relief in the alloy layers of the film and the elastic strain in the intervening Si layers.

  15. Supercritical waste oxidation pump investigation

    SciTech Connect

    Thurston, G.; Garcia, K.

    1993-02-01

    This report investigates the pumping techniques and pumping equipment that would be appropriate for a 5,000 gallon per day supercritical water oxidation waste disposal facility. The pumps must boost water, waste, and additives from atmospheric pressure to approximately 27.6 MPa (4,000 psia). The required flow ranges from 10 gpm to less than 0.1 gpm. For the higher flows, many commercial piston pumps are available. These pumps have packing and check-valves that will require periodic maintenance; probably at 2 to 6 month intervals. Several commercial diaphragm pumps were also discovered that could pump the higher flow rates. Diaphragm pumps have the advantage of not requiring dynamic seals. For the lower flows associated with the waste and additive materials, commercial diaphragm pumps. are available. Difficult to pump materials that are sticky, radioactive, or contain solids, could be injected with an accumulator using an inert gas as the driving mechanism. The information presented in this report serves as a spring board for trade studies and the development of equipment specifications.

  16. Investigation of Persembe Yenikoy Landslide

    NASA Astrophysics Data System (ADS)

    Kayahan, A.; Ikizler, S. B.; Ang?n, Z.; Demir, G.; Suba??, E.

    2012-04-01

    In the last two years, the province of Ordu located in central part of the Black Sea Region (on the border of Eastern Black Sea region) has experienced heavy rainfalls that have caused floods and landslides. A landslide occurred in 19 August 2011 in Persembe district of Ordu. It has been named as Persembe Yenikoy (a village of Persembe) landslide. The landslide, triggered by heavy rainfall swept away a huge area of about 4-5 times a football ground. It caused collapse of a house and 2 people died. Besides, 9 houses were affected and evacuated. In this study, disturbed and undisturbed samples have been taken from the area and several laboratory tests have been carried on these samples to investigate the geotechnical properties of the soil profile and explain the reasons of the landslide. Soil profile in the area consists of silt of high plasticity (MH). The results of the laboratory tests have been presented and finite element analysis with Plaxis 2D has been performed for modeling of the landslide. The results may be used in landslide analysis in the regions having similar soil characteristics and site conditions. They will be presented to the local authorities to assess landslide prone areas and prevent similar damages and live losses in the future. Key Words: Landslides, Rainfall, Ordu, Turkey

  17. Investigations of Arcjet Flow Thermochemistry

    NASA Technical Reports Server (NTRS)

    Fletcher, Douglas G.; Wercinski, Paul (Technical Monitor)

    1997-01-01

    An experimental and numerical investigation of the thermochemical state of arcjet flows is currently being conducted at NASA Ames Research Center. The experimental approach relies on the use of laser- and emission-spectroscopic diagnostic techniques in three regions of the flow. A fiber optic sensor is used to record spectrally resolved emission signals from the electrode package region, where the flow is most likely to be in thermochemical equilibrium. A second emission diagnostic measurement is made in the shock layer formed over a blunt-body test article placed in the stream, and a CCD camera is used to simultaneously record spectral emission from several measurement locations along the stagnation streamline. Downstream of the nozzle exit, but upstream of the test article, Laser-Induced Fluorescence (LIF) of atomic nitrogen is used to assess the nonequilibrium distribution of flow enthalpy in the free stream. Results from the measurements are compared with predictions from a two-temperature, axisymmetric flow model that solves the nozzle and shock-layer flows.

  18. The Galileo plasma wave investigation

    NASA Technical Reports Server (NTRS)

    Gurnett, D. A.; Kurth, W. S.; Shaw, R. R.; Roux, A.; Gendrin, R.; Kennel, C. F.; Scarf, F. L.; Shawhan, S. D.

    1992-01-01

    The purpose of the Galileo plasma wave investigation is to study plasma waves and radio emissions in the magnetosphere of Jupiter. The plasma wave instrument uses an electric dipole antenna to detect electric fields, and two search coil magnetic antennas to detect magnetic fields. The frequency range covered is 5 Hz to 5.6 MHz for electric fields and 5 Hz to 160 kHz for magnetic fields. Low time-resolution survey spectrums are provided by three on-board spectrum analyzers. In the normal mode of operation the frequency resolution is about 10 percent, and the time resolution for a complete set of electric and magnetic field measurements is 37.33 s. High time-resolution spectrums are provided by a wideband receiver. The wideband receiver provides waveform measurements over bandwidths of 1, 10, and 80 kHz. Compared to previous measurements at Jupiter this instrument has several new capabilities. These new capabilities include (1) both electric and magnetic field measurements to distinguish electrostatic and electromagnetic waves, (2) direction finding measurements to determine source locations, and (3) increased bandwidth for the wideband measurements.

  19. Mission Investigates Tropical Cirrus Clouds

    NASA Astrophysics Data System (ADS)

    Jenson, Eric; Starr, David; Toon, Owen B.

    2004-02-01

    It has been a year since NASA conducted the highly successful Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment Study (CRYSTAL-FACE). The measurement campaign was designed to investigate the physical properties and formation processes of tropical cirrus clouds. CRYSTAL-FACE was sponsored by NASA's Earth Science Enterprise as an integral component of its Earth observation research strategy, and included substantial collaboration with the National Oceanic and Atmospheric Administration, the National Science Foundation, the Department of Energy, and the Naval Research Laboratory. During July 2002, the mission's six aircraft (NASA ER-2, NASA WB-57, Scaled Composites Proteus, University of North Dakota Citation, NSF-supported NRL P-3, and NRL Twin Otter) operated from the Key West Naval Air Facility. In addition, ground sites were located at the Tamiami airport on the east coast of Florida and near Everglades City on the west coast of Florida. Aircraft and ground site measurements are listed in Table 1. Data archiving is complete, and the data are now available to the general scientific community. Detailed instrument descriptions as well as the final data can be found on the CRYSTAL-FACE Web site (http://cloud1.arc.nasa.gov/crystalface/).

  20. Phoenix soil physical properties investigation

    NASA Astrophysics Data System (ADS)

    Shaw, Amy; Arvidson, Raymond E.; Bonitz, Robert; Carsten, Joseph; Keller, H. U.; Lemmon, Mark T.; Mellon, Michael T.; Robinson, Matthew; Trebi-Ollennu, Ashitey

    2009-12-01

    The Phoenix Lander investigated the polygonal terrain and associated soil and icy soil deposits of a high northern latitude site on Mars. The soil physical properties component involved the analysis of force data determined from motor currents from the Robotic Arm (RA)'s trenching activity. Using this information and images of the landing site, soil cohesion and angle of internal friction were determined. Dump pile slopes were used to determine the angle of internal friction of the soil: 38 5. Additionally, an excavation model that treated walls and edges of the scoop as retaining walls was used to calculate mean soil cohesions for several trenches in the Phoenix landing site workspace. These cohesions were found to be consistent with the stability of steep trench slopes. Cohesions varied from 0.2 0.4kPa to 1.2 1.8 kPa, with the exception of a subsurface platy horizon unique to a shallow trough for which cohesion will have to be determined using other methods. Soil on polygon mounds had the greatest cohesion (1.2 1.8 kPa). This was most likely due to the presence of adsorbed water or pore ice above the shallow icy soil surface. Further evidence for enhanced cohesion above the ice table includes lateral increase in excavation force, by over 30 N, as the RA approached ice.

  1. Gelled MMH hypergolic droplet investigation

    NASA Astrophysics Data System (ADS)

    Solomon, Yair

    Gelled propellants are promising candidates for certain future rocket applications, offering potential improvements in performance and/or safety over conventional liquid and solid systems. In particular, gelled hypergolic propellants can eliminate some handling difficulties by reducing leakage hazard. Before such systems can be developed, however, a fundamental understanding of combustion of the gel droplet is required. This study addresses the combustion behavior of monomethyl hydrazine (MMH) droplet gelled with both hydroxypropyl cellulose (HPC) and fumed silica in an environment of gaseous nitrogen dioxide. All MMH/HPC gel droplets displayed swelling and jetting that are typical to hydrocarbon gels with an organic gelling agent. Burning rates were measured for droplet diameters from 1.8 to 3.2 mm at three ambient pressures of 1.72, 2.06 and 2.89 bar. It was found that the droplet burning rate is dependent on the droplet diameter similarly to liquid MMH. Over the investigated pressure range, no dependence of burning rate on pressure was found. The combustion of MMH/HPC gel was compared to MMH/tetraglyme to examine the influence the type of gelling agent. Droplets of MMH and liquid tetraglyme showed increasing swelling frequencies and volume fluctuations during combustion while the MMH and HPC droplets exhibited a more constant burning history. The MMH/Silica gels showed a different combustion mechanism with the formation of a rigid silica structure, micro-explosions, and up to a 50% reduction in droplet volume during combustion.

  2. Airborne lidar global positioning investigations

    NASA Technical Reports Server (NTRS)

    Krabill, W. B.

    1988-01-01

    The Global Positioning System (GPS) network of satellites shows high promise of revolutionizing methods for conducting surveying, navigation, and positioning. This is especially true in the case of airborne or satellite positioning. A single GPS receiver (suitably adapted for aircraft deployment) can yield positioning accuracies (world-wide) in the order of 30 to 50 m vertically, as well as horizontally. This accuracy is dramatically improved when a second GPS receiver is positioned at a known horizontal and vertical reference. Absolute horizontal and vertical positioning of 1 to 2 m are easily achieved over areas of separation of tens of km. If four common satellites remain in lock in both receivers, then differential phase pseudo-ranges on the GPS L-band carrier can be utilized to achieve accuracies of + or - 10 cm and perhaps as good as + or - 2 cm. The initial proof of concept investigation for airborne positioning using the phase difference between the airborne and stationary GPS receivers was conducted and is examined.

  3. Experimental investigations of elastohydrodynamic lubrication

    NASA Technical Reports Server (NTRS)

    Hamrock, B. J.; Dowson, D.

    1983-01-01

    Various experimental studies of elastohydrodynamic lubrication have been reviewed. The various types of machines used in these investigations, such as the disc, two and four ball, crossed-cylinders, and crossed-axes rolling disc machine, are described. The measurement of the most important parameters, such as film shape, film thickness, pressure, temperature, and traction, is considered. Determination of the film thickness is generally the most important of these effects since it dictates the extent to which the asperities on opposing surfaces can come into contact and thus has a direct bearing on wear and fatigue failure of the contacting surfaces. Several different techniques for measuring film thickness have been described, including electrical resistance, capacitance, X-ray, optical interferometry, laser beam diffraction, strain gage, and spring dynamometer methods. An attempt has been made to describe the basic concepts and limitations of each of these techniques. These various methods have been used by individual researchers, but there is no universally acceptable technique for measuring elastohydrodynamic film thickness. Capacitance methods have provided most of the reliable data for nominal line or rectangular conjunctions, but optical interferometry has proved to be the most effective procedure for elliptical contacts. Optical interferometry has the great advantage that it reveals not only the film thickness, but also details of the film shape over the complete area of the conjunction.

  4. Nevada nuclear waste storage investigations

    NASA Astrophysics Data System (ADS)

    1981-08-01

    The Nevada Nuclear Waste Storage Investigations (NWSI) improvement of the technology of nuclear waste storage and disposal and determination whether selected underground rock media on or adjoining the Nevada Test Site are technically acceptable for a licensed, permanent, high level nuclear waste repository is examined. The NNWSI project work breakdown structure is comprised of eight tasks: systems, waste package, site, repository, regulatory and institutional, test facilities, land acquisition, and program management. Some of the highlights are: initial screening studies of candidate waste package alloys in tuff groundwater were completed; installation of the constant air monitoring system and the remote area monitoring system was completed; a transport model to describe the potential behavior of radionuclides in tuff was developed; a diaphragm diffusion cell was constructed for directly measuring the diffusion properties of tuff; the mineralogy and petrology of the 6000 foot section of the first major exploratory stratigraphic hole at Yucca Mountain; a series of numerical experiments were reported to employ nuclear explosions and earthquake data in a simultaneous inversion for crustal velocities and station delays to improve the accuracy of earthquake location; a three dimensional material model was developed for predicting jointed rock-mass response.

  5. Investigation into nitrided spur gears

    SciTech Connect

    Yilbas, B.S.; Coban, A.; Nickel, J.; Sunar, M.; Sami, M.; Abdul Aleem, B.J.

    1996-12-01

    The cold forging method has been widely used in industry to produce machine parts. In general, gears are produced by shaping or hobbing. One of the shaping techniques is precision forging, which has several advantages over hobbing. In the present study, cold forging of spur gears from Ti-6Al-4V material is introduced. To improve the surface properties of the resulting gears, plasma nitriding was carried out. Nuclear reaction analysis was carried out to obtain the nitrogen concentration, while the micro-PIXE technique was used to determine the elemental distribution in the matrix after forging and nitriding processes. Scanning electron microscopy and x-ray powder diffraction were used to investigate the metallurgical changes and formation of nitride components in the surface region. Microhardness and friction tests were carried out to measure the hardness depth profile and friction coefficient at the surface. Finally, scoring failure tests were conducted to determine the rotational speed at which the gears failed. Three distinct regions were obtained in the nitride region, and at the initial stages of the scoring tests, failure in surface roughness was observed in the vicinity of the tip of the gear tooth. This occurred at a particular rotational speed and work input.

  6. Scientists Investigate Recent Philippine Landslide

    NASA Astrophysics Data System (ADS)

    Lagmay, Alfredo Mahar A.; Ong, John Burtkenley T.; Fernandez, Dan Ferdinand D.; Lapus, Mark R.; Rodolfo, Raymond S.; Tengonciang, Arlene Mae P.; Soria, Janneli Lea A.; Baliatan, Eden G.; Quimba, Zareth L.; Uichanco, Christopher L.; Paguican, Engielle Mae R.; Remedio, Armelle Reca C.; Lorenzo, Genevieve Rose H.; Avila, Francia B.; Valdivia, Waldemar

    2006-03-01

    A massive landslide devastated the community of Barangay Guinsaugon, Municipality of St. Bernard, Southern Leyte Province, Philippines, at about 10:30 local time on 17 February. The landslide occurred along the steep fault scarp of the Philippine Fault Zone (PFZ) (Figure 1a), a large and active tectonic structure that traverses the entire length of the Philippines [Allen, 1962]. Barangay Guinsaugon is located at the foot of the scarp, directly in the path of the downward moving mass of earth. As of 24 February, the landslide caused 122 confirmed deaths; 1,328 people still are missing. To assist in the search and rescue operations that followed the landside, a team of geologists and physicists from the University of Philippines (UP-Diliman, Quezon City) and Ateneo de Manila University conducted an investigation of this area on 21-25 February. The UP-Ateneo team provided technical advice on the geology, which included the identification of the type and characteristics of the landslide.

  7. Investigating cerebral oedema using poroelasticity.

    PubMed

    Vardakis, John C; Chou, Dean; Tully, Brett J; Hung, Chang C; Lee, Tsong H; Tsui, Po-Hsiang; Ventikos, Yiannis

    2016-01-01

    Cerebral oedema can be classified as the tangible swelling produced by expansion of the interstitial fluid volume. Hydrocephalus can be succinctly described as the abnormal accumulation of cerebrospinal fluid (CSF) within the brain which ultimately leads to oedema within specific sites of parenchymal tissue. Using hydrocephalus as a test bed, one is able to account for the necessary mechanisms involved in the interaction between oedema formation and cerebral fluid production, transport and drainage. The current state of knowledge about integrative cerebral dynamics and transport phenomena indicates that poroelastic theory may provide a suitable framework to better understand various diseases. In this work, Multiple-Network Poroelastic Theory (MPET) is used to develop a novel spatio-temporal model of fluid regulation and tissue displacement within the various scales of the cerebral environment. The model is applied through two formats, a one-dimensional finite difference - Computational Fluid Dynamics (CFD) coupling framework, as well as a two-dimensional Finite Element Method (FEM) formulation. These are used to investigate the role of endoscopic fourth ventriculostomy in alleviating oedema formation due to fourth ventricle outlet obstruction (1D coupled model) in addition to observing the capability of the FEM template in capturing important characteristics allied to oedema formation, like for instance in the periventricular region (2D model). PMID:26749338

  8. 17 CFR 8.06 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... investigation in its report. ... exchange. Such an investigation shall be commenced: (1) Upon the receipt of a request from the Commission... violation has occurred or will occur. (b) Each enforcement staff investigation shall be completed...

  9. 17 CFR 8.06 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... investigation in its report. ... exchange. Such an investigation shall be commenced: (1) Upon the receipt of a request from the Commission... violation has occurred or will occur. (b) Each enforcement staff investigation shall be completed...

  10. 17 CFR 8.06 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... investigation in its report. ... exchange. Such an investigation shall be commenced: (1) Upon the receipt of a request from the Commission... violation has occurred or will occur. (b) Each enforcement staff investigation shall be completed...

  11. 45 CFR 617.11 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION NONDISCRIMINATION... discrimination against the recipient. (b) Formal investigation. If NSF cannot resolve the complaint through informal investigation, it will begin to develop formal findings through further investigation of...

  12. 45 CFR 617.11 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION NONDISCRIMINATION... discrimination against the recipient. (b) Formal investigation. If NSF cannot resolve the complaint through informal investigation, it will begin to develop formal findings through further investigation of...

  13. 45 CFR 617.11 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION NONDISCRIMINATION... discrimination against the recipient. (b) Formal investigation. If NSF cannot resolve the complaint through informal investigation, it will begin to develop formal findings through further investigation of...

  14. Field investigation of keyblock stability

    SciTech Connect

    Yow, J.L. Jr.

    1985-04-01

    Discontinuities in a rock mass can intersect an excavation surface to form discrete blocks (keyblocks) which can be unstable. This engineering problem is divided into two parts: block identification, and evaluation of block stability. One stable keyblock and thirteen fallen keyblocks were observed in field investigations at the Nevada Test Site. Nine blocks were measured in detail sufficient to allow back-analysis of their stability. Measurements included block geometry, and discontinuity roughness and compressive strength. Back-analysis correctly predicted stability or failure in all but two cases. These two exceptions involved situations that violated the stress assumptions of the stability calculations. Keyblock faces correlated well with known joint set orientations. The effect of tunnel orientation on keyblock frequency was apparent. Back-analysis of physical models successfully predicted block pullout force for two-dimensional models of unit thickness. Two-dimensional (2D) and three-dimensional (3D) analytic models for the stability of simple pyramidal keyblocks were examined. Calculated stability is greater for 3D analyses than for 2D analyses. Calculated keyblock stability increases with larger in situ stress magnitudes, larger lateral stress ratios, and larger shear strengths. Discontinuity stiffness controls block displacement more strongly than it does stability itself. Large keyblocks are less stable than small ones, and stability increases as blocks become more slender. Rock mass temperature decreases reduce the confining stress magnitudes and can lead to failure. The pattern of stresses affecting each block face explains conceptually the occurrence of pyramidal keyblocks that are truncated near their apex.

  15. Raman investigation of diamond films

    SciTech Connect

    Feng, Li-Ming

    1993-12-31

    Extensive Raman investigations were conducted on a wide range of diamond films whose structures were dilineated by optical and confocal microscopy. The Raman Spectra from one extreme of this range indicates a very intense 1331 cm{sup {minus}1} line diagnostic of bulk crystalline diamond. Microscopy of the corresponding film shows the presence of many large true diamond crystallite. The 1331 cm{sup {minus}1} Raman line at the other extreme of the range, however, is virtually absent. It is replaced, at this extreme, by a very broad Raman contour whose maxima occur near 1355 cm{sup {minus}1} and 1575 cm{sup {minus}1}. Optical microscopy now reveals a complete lack of diamond crystallites. The ratio of the integrated Raman intensity of the 1331 cm{sup {minus}1} diamond line to the integral of the entire broad contour extending from {approx}1200 cm{sup {minus}1} to 1800 cm{sup {minus}1}, with maxima near 1355 cm{sup {minus}1} and 1575 cm{sup {minus}1}, was determined. This ratio rises with increasing diamond crystallite size, and it decreases as true diamond crystallites are replaced by diamond-like, but amorphous, hard carbon, which produces the broad Raman contour. The measured intensity ratio was analyzed in terms of a differential equation related to phonon coupling. The increase of the intensity ratio of the 1331 cm{sup {minus}1} diagnostic diamond peak is due to phono-phonon coupling between the diamond crystallites, as the concentration of the amorphous diamond-like carbon decreases. Confocal microscopy indicates many amorphous-like regions interspersed between diamond crystallites which account for the intensity loss, and agree with the Raman intensity measurements. These Raman measurements crystallinity versus amorphous hard-carbon character of thin diamond film.

  16. The Global Ecosystem Dynamics Investigation

    NASA Astrophysics Data System (ADS)

    Dubayah, R.; Goetz, S. J.; Blair, J. B.; Fatoyinbo, T. E.; Hansen, M.; Healey, S. P.; Hofton, M. A.; Hurtt, G. C.; Kellner, J.; Luthcke, S. B.; Swatantran, A.

    2014-12-01

    Spaceborne lidar has been identified as a key technology by the international ecosystem science community because it enables accurate estimates of canopy structure and biomass and forms the basis for fusion approaches that extend the capabilities of existing and planned radar missions, such as the NASA-ISRO SAR and the ESA BIOMASS mission. The Global Ecosystems Dynamics Investigation Lidar (GEDI Lidar) was recently selected by NASA's Earth Ventures Instrument (EVI) program. From its vantage point on the International Space Station, GEDI Lidar provides high-resolution observations of forest vertical structure and addresses three, core science questions: What is the aboveground carbon balance of the land surface? What role will the land surface play in mitigating atmospheric CO2 in the coming decades? How does ecosystem structure affect habitat quality and biodiversity? GEDI informs these science questions by making billions of lidar waveform observations of canopy structure over its nominal one year mission length. The instrument uses three laser transmitters to produce 14 parallel tracks of 25 m footprints. These canopy measurements are then used to measure biomass and in fusion with radar and other remote sensing data to quantify changes in biomass resulting from disturbance and recovery. GEDI further marries ecosystem structure from lidar with ecosystem modeling to predict the sequestration potential of existing forests and to evaluate the impact of policy-driven afforestation and reforestation actions on sequestering additional carbon. Lastly, GEDI's observations of ecosystem structure provide a mapping of critical habitat metrics at the fine scales required for understanding the patterns, processes, and controls on biodiversity and habitat quality. The selection of GEDI Lidar, when combined with the rapid advancement of new radar missions and the availability of long-term land cover archives from passive optical sensors, ushers in an exciting new era of land surface imaging with far ranging consequences for ecosystem science.

  17. Bioanalysis young investigator: Sathyadevi Venkataramani.

    PubMed

    Venkataramani, Sathyadevi

    2012-05-01

    It is with great pleasure that I am writing to recommend Sathyadevi Venkataramani who works as a Scientist in Integrated BioTherapeutics (IBT). Sathya did her graduate research work at the University of Zurich (Switzerland) where she focused on using various bioanalytical tools to characterize the stability of repeat proteins that are emerging as excellent alternatives to antibody therapy. She successfully published her research findings in journals including Protein Science, Biochemistry and Current Microbiology. As a postdoctoral associate at Stanford University (CA, USA) and as a Scientist in Solus Biosystems (CA, USA), she thoroughly investigated the applications of spectroscopy and chromatography for characterizing the stability of monoclonal antibodies and other therapeutic proteins. Being the first author in all her publications and corresponding author of her last few highlights her highly competent skills (both writing and oral), enthusiasm, research motivation, hard work, scientific capabilities, innovative thinking and the terrific passion in implementing those. I am very impressed that she is serving as an ad-hoc peer reviewer for journals such as Molecular Biology Reports, American Association of Pharmaceutical Scientists PharmSciTech, Research and Reports in Biochemistry and as a Faculty of Biochemistry for Webmed Central. Currently she is leading the protein chemistry group in Integrated BioTherapeutics, Inc. (IBT) and is already in possession of a couple of manuscripts and patents from IBT. Her expertise and unquenchable enthusiasm in the bioanalysis field have tremendously helped to improve the quality and quantity of proteins in IBT. It is a very commendable idea of Bioanalysis to appreciate and recognize the young rising stars of the scientific world and I am very excited and honored to recommend Sathya among those for the year 2012. PMID:22612680

  18. The MAVEN Magnetic Field Investigation

    NASA Technical Reports Server (NTRS)

    Connerney, J. E. P.; Espley, J.; Lawton, P.; Murphy, S.; Odom, J.; Oliversen, R.; Sheppard, D.

    2014-01-01

    The MAVEN magnetic field investigation is part of a comprehensive particles and fields subsystem that will measure the magnetic and electric fields and plasma environment of Mars and its interaction with the solar wind. The magnetic field instrumentation consists of two independent tri-axial fluxgate magnetometer sensors, remotely mounted at the outer extremity of the two solar arrays on small extensions ("boomlets"). The sensors are controlled by independent and functionally identical electronics assemblies that are integrated within the particles and fields subsystem and draw their power from redundant power supplies within that system. Each magnetometer measures the ambient vector magnetic field over a wide dynamic range (to 65,536 nT per axis) with a quantization uncertainty of 0.008 nT in the most sensitive dynamic range and an accuracy of better than 0.05%. Both magnetometers sample the ambient magnetic field at an intrinsic sample rate of 32 vector samples per second. Telemetry is transferred from each magnetometer to the particles and fields package once per second and subsequently passed to the spacecraft after some reformatting. The magnetic field data volume may be reduced by averaging and decimation, when necessary to meet telemetry allocations, and application of data compression, utilizing a lossless 8-bit differencing scheme. The MAVEN magnetic field experiment may be reconfigured in flight to meet unanticipated needs and is fully hardware redundant. A spacecraft magnetic control program was implemented to provide a magnetically clean environment for the magnetic sensors and the MAVEN mission plan provides for occasional spacecraft maneuvers - multiple rotations about the spacecraft x and z axes - to characterize spacecraft fields and/or instrument offsets in flight.

  19. The MAVEN Magnetic Field Investigation

    NASA Astrophysics Data System (ADS)

    Connerney, J. E. P.; Espley, J.; Lawton, P.; Murphy, S.; Odom, J.; Oliversen, R.; Sheppard, D.

    2015-12-01

    The MAVEN magnetic field investigation is part of a comprehensive particles and fields subsystem that will measure the magnetic and electric fields and plasma environment of Mars and its interaction with the solar wind. The magnetic field instrumentation consists of two independent tri-axial fluxgate magnetometer sensors, remotely mounted at the outer extremity of the two solar arrays on small extensions ("boomlets"). The sensors are controlled by independent and functionally identical electronics assemblies that are integrated within the particles and fields subsystem and draw their power from redundant power supplies within that system. Each magnetometer measures the ambient vector magnetic field over a wide dynamic range (to 65,536 nT per axis) with a resolution of 0.008 nT in the most sensitive dynamic range and an accuracy of better than 0.05 %. Both magnetometers sample the ambient magnetic field at an intrinsic sample rate of 32 vector samples per second. Telemetry is transferred from each magnetometer to the particles and fields package once per second and subsequently passed to the spacecraft after some reformatting. The magnetic field data volume may be reduced by averaging and decimation, when necessary to meet telemetry allocations, and application of data compression, utilizing a lossless 8-bit differencing scheme. The MAVEN magnetic field experiment may be reconfigured in flight to meet unanticipated needs and is fully hardware redundant. A spacecraft magnetic control program was implemented to provide a magnetically clean environment for the magnetic sensors and the MAVEN mission plan provides for occasional spacecraft maneuvers—multiple rotations about the spacecraft x and z axes—to characterize spacecraft fields and/or instrument offsets in flight.

  20. Structural investigation of graphitic foam

    NASA Astrophysics Data System (ADS)

    Mukhopadhyay, S. M.; Mahadev, N.; Joshi, P.; Roy, A. K.; Kearns, K. M.; Anderson, D. P.

    2002-03-01

    Structural and chemical characteristics of pitch-based graphitic foam have been studied using scanning electron microscopy, transmission electron microscopy (TEM) and x-ray photoelectron spectroscopy. Chemically, the carbon atoms in these materials are found to have identical bonding states as those in pure graphite single crystals. Microstructural studies indicate that they have a cellular morphology with the cell walls made up of graphitic layers. The walls can be smooth or stepped depending upon the orientation of graphitic layers with respect to the cells. Ligaments between neighboring cells and junctions of ligaments (corners of three or more cells) distinctly show layers of graphitic planes, irregular flakes, and beam-like protruding structures made up of folded layers of graphite. The network of interconnecting pores have openings on the cell walls that have ruptured edges and sharp corners. This indicates that they were formed after hardening of the precursor, resulting in brittle fracture of the walls. The sharp cracks at pore openings may enhance mechanical failure of these structures and attempts to minimize them may improve mechanical behavior. Higher magnification studies in the TEM indicate the presence of flaky layers of graphite crystals and also long tubular structures protruding from the cell walls and ligaments. These fibrous structures (possibly rolled stacks of graphitic planes) have lengths in excess of several microns and diameters ranging between several tens of nanometers to several hundred nanometers. The walls are thick: several tens of nanometers. These structures, intermediate in size between micron size graphitic fibers and nanometer size multiwalled "nanotubes," have been discussed in light of other well investigated graphitic structures.

  1. Athena Mars rover science investigation

    NASA Astrophysics Data System (ADS)

    Squyres, Steven W.; Arvidson, Raymond E.; Baumgartner, Eric T.; Bell, James F.; Christensen, Philip R.; Gorevan, Stephen; Herkenhoff, Kenneth E.; Klingelhöfer, Göstar; Madsen, Morten Bo; Morris, Richard V.; Rieder, Rudolf; Romero, Raul A.

    2003-12-01

    Each Mars Exploration Rover carries an integrated suite of scientific instruments and tools called the Athena science payload. The primary objective of the Athena science investigation is to explore two sites on the Martian surface where water may once have been present, and to assess past environmental conditions at those sites and their suitability for life. The remote sensing portion of the payload uses a mast called the Pancam Mast Assembly (PMA) that provides pointing for two instruments: the Panoramic Camera (Pancam), and the Miniature Thermal Emission Spectrometer (Mini-TES). Pancam provides high-resolution, color, stereo imaging, while Mini-TES provides spectral cubes at mid-infrared wavelengths. For in-situ study, a five degree-of-freedom arm called the Instrument Deployment Device (IDD) carries four more tools: a Microscopic Imager (MI) for close-up imaging, an Alpha Particle X-Ray Spectrometer (APXS) for elemental chemistry, a Mössbauer Spectrometer (MB) for the mineralogy of Fe-bearing materials, and a Rock Abrasion Tool (RAT) for removing dusty and weathered surfaces and exposing fresh rock underneath. The payload also includes magnets that allow the instruments to study the composition of magnetic Martian materials. All of the Athena instruments have undergone extensive calibration, both individually and using a set of geologic reference materials that are being measured with all the instruments. Using a MER-like rover and payload in a number of field settings, we have devised operations processes that will enable us to use the MER rovers to formulate and test scientific hypotheses concerning past environmental conditions and habitability at the landing sites.

  2. Athena Mars rover science investigation

    USGS Publications Warehouse

    Squyres, S. W.; Arvidson, R. E.; Baumgartner, E.T.; Bell, J.F., III; Christensen, P.R.; Gorevan, S.; Herkenhoff, K. E.; Klingelhofer, G.; Madsen, M.B.; Morris, R.V.; Rieder, R.; Romero, R.A.

    2003-01-01

    Each Mars Exploration Rover carries an integrated suite of scientific instruments and tools called the Athena science payload. The primary objective of the Athena science investigation is to explore two sites on the Martian surface where water may once have been present, and to assess past environmental conditions at those sites and their suitability for life. The remote sensing portion of the payload uses a mast called the Pancam Mast Assembly (PMA) that provides pointing for two instruments: the Panoramic Camera (Pancam), and the Miniature Thermal Emission Spectrometer (Mini-TES). Pancam provides high-resolution, color, stereo imaging, while Mini-TES provides spectral cubes at mid-infrared wavelengths. For in-situ study, a five degree-of-freedom arm called the Instrument Deployment Device (IDD) carries four more tools: a Microscopic Imager (MI) for close-up imaging, an Alpha Particle X-Ray Spectrometer (APXS) for elemental chemistry, a Mo??ssbauer Spectrometer (MB) for the mineralogy of Fe-bearing materials, and a Rock Abrasion Tool (RAT) for removing dusty and weathered surfaces and exposing fresh rock underneath. The payload also includes magnets that allow the instruments to study the composition of magnetic Martian materials. All of the Athena instruments have undergone extensive calibration, both individually and using a set of geologic reference materials that are being measured with all the instruments. Using a MER-like rover and payload in a number of field settings, we have devised operations processes that will enable us to use the MER rovers to formulate and test scientific hypotheses concerning past environmental conditions and habitability at the landing sites. Copyright 2003 by the American Geophysical Union.

  3. Investigation of a wrongful death.

    PubMed

    Kissling, F; Frankfort, E

    1996-01-01

    This reprint of a 1979 article tells the story of Rosie Jiminez, a 27-year-old Mexican-American woman who died in McAllen General Hospital in Texas on October 3, 1977, from the complications of an illegal abortion. Jiminez was the first reported victim of the Hyde Amendment which cut off federal Medicaid funding for abortion. She was a daughter of migrant workers, a single mother of a 5-year-old daughter, a welfare recipient, a part-time worker, and a university student 6 months from receiving a bachelor's degree in education. When she died, she had a $700 scholarship check in her pocket, but if she had used that money to pay for an abortion, her education would have been curtailed. Initial reports to the US Centers for Disease Control (CDC), the agency charged with monitoring the effects of the Hyde Amendment, indicated that Jiminez had obtained her abortion in Mexico to protect her privacy. Four months of independent investigation uncovered two women who had accompanied Jiminez to a lay midwife who performed the abortion in Texas. The local police did nothing with this information, and only arrested the midwife when abortion activists set up a trap in which she was recorded offering to perform an abortion for $125. The abortionist was sentenced to 3 days in jail and fined $100 but was not charged in Jiminez's death. The CDC included this information in a two-paragraph report but failed to take any other action to determine the scale of morbidity and mortality following the Hyde Amendment. The women of America must refuse to tolerate the death of a single woman because of a lack of funding for abortion. PMID:12178869

  4. [Electrochemical methods for biomedical investigations].

    PubMed

    Shumyantseva, V V; Bulko, T V; Suprun, E V; Kuzikov, A V; Agafonova, L E; Archakov, A I

    2015-01-01

    In the review, authors discussed recently published experimental data concerning highly sensitive electrochemical methods and technologies for biomedical investigations in the postgenomic era. Developments in electrochemical biosensors systems for the analysis of various bio objects are also considered: cytochrome P450s, cardiac markers, bacterial cells, the analysis of proteins based on electro oxidized amino acids as a tool for analysis of conformational events. The electroanalysis of catalytic activity of cytochromes P450 allowed developing system for screening of potential substrates, inhibitors or modulators of catalytic functions of this class of hemoproteins. The highly sensitive quartz crystal microbalance (QCM) immunosensor has been developed for analysis of bio affinity interactions of antibodies with troponin I in plasma. The QCM technique allowed real-time monitoring of the kinetic differences in specific interactions and nonspecific sorption, with out multiple labeling procedures and separation steps. The affinity binding process was characterized by the association (ka) and the dissociation (kd) kinetic constants and the equilibrium association (K) constant, calculated using experimental data. Based on the electroactivity of bacterial cells, the electrochemical system for determination of sensitivity of the microbial cells to antibiotics cefepime, ampicillin, amikacin, and erythromycin was proposed. It was shown that the minimally detectable cell number corresponds to 106 CFU per electrode. The electrochemical method allows estimating the degree of E.coli JM109 cells resistance to antibiotics within 2-5 h. Electrosynthesis of polymeric analogs of antibodies for myoglobin (molecularly imprinted polymer, MIP) on the surface of graphite screen-printed electrodes as sensor elements with o- phenylenediamine as the functional monomer was developed. Molecularly imprinted polymers demonstrate selective complementary binding of a template protein molecule (myoglobin) by the "key-lock" principle. PMID:25978386

  5. 10 CFR 4.43 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    .... The responsible NRC official will make a prompt investigation whenever a compliance review, report... investigation should include, where appropriate, a review of the pertinent practices and policies of...

  6. 10 CFR 4.43 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    .... The responsible NRC official will make a prompt investigation whenever a compliance review, report... investigation should include, where appropriate, a review of the pertinent practices and policies of...

  7. 10 CFR 4.43 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    .... The responsible NRC official will make a prompt investigation whenever a compliance review, report... investigation should include, where appropriate, a review of the pertinent practices and policies of...

  8. 10 CFR 4.43 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    .... The responsible NRC official will make a prompt investigation whenever a compliance review, report... investigation should include, where appropriate, a review of the pertinent practices and policies of...

  9. 10 CFR 4.43 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    .... The responsible NRC official will make a prompt investigation whenever a compliance review, report... investigation should include, where appropriate, a review of the pertinent practices and policies of...

  10. LISA telescope spacer design investigations

    NASA Astrophysics Data System (ADS)

    Sanjuan, Josep; Mueller, Guido; Livas, Jeffrey; Preston, Alix; Arsenovic, Petar; Castellucci, Kevin; Generie, Joseph; Howard, Joseph; Stebbins, Robin

    The Laser Interferometer Space Antenna (LISA) is a space-based gravitational wave observa-tory with the goal of observing Gravitational Waves (GWs) from astronomical sources in a frequency range from 30 Hz to 0.1 Hz. The detection of GWs at such low frequency requires measurements of distances at the pico-meter level between bodies separated by 5 million kilo-meters. The LISA mission consists of three identical spacecraft (SC) separated by 5 106 km forming an equilateral triangle. Each SC contains two optical assemblies and two vacuum en-closures housing one proof mass (PM) in geodesic (free fall) motion each. The two assemblies on one SC are each pointing towards an identical assembly on each of the other two SC to form a non-equal arm interferometer. The measurement of the GW strain is done by measuring the change in the length of the optical path between the PMs of one arm relative to the other arms caused by the pass of a GW. An important element of the Interferometric Measurement System (IMS) is the telescope which, on one hand, gathers the light coming from the far SC (100 pW) and, on the other hand, expands and collimates the small outgoing beam ( 1 W) and sends it to the far SC. Due to the very demanding sensitivity requirements care must be taken in the design and validation of the telescope not to degrade the IMS performance. For instance, the diameter of the telescope sets the the shot noise of the IMS and depends critically on the diameter of the primary and the divergence angle of the outgoing beam. As the telescope is rather fast telescope, the divergence angle is a critical function of the overall separation between the primary and secondary. Any long term changes of the distance of more than a a few micro-meter would be detrimental to the LISA mission. Similarly challenging are the requirements on the in-band path-length noise for the telescope which has to be kept below 1 pm Hz-1/2 in the LISA band. Different configurations (on-axis/off axis) and materials such as Silicon Carbide (SiC) and Carbon Fiber Reinforced Plastic (CFRP) are considered to be used in the telescope spacer structure. We will describe our experimental efforts to understand and quantify the behavior of different materials and also discuss a first investigation of a specific on-axis SiC telescope spacer for LISA. This work is supported by NASA contract 00069955.

  11. Investigating Reaction-Driven Cracking

    NASA Astrophysics Data System (ADS)

    Kelemen, P. B.; Hirth, G.; Savage, H. M.

    2013-12-01

    Many metamorphic reactions lead to large volume changes, and potentially to reaction-driven cracking [1,2]. Large-scale hydration of mantle peridotite to produce serpentine or talc is invoked to explain the rheology of plate boundaries, the nature of earthquakes, and the seismic properties of slow-spread ocean crust and the 'mantle wedge' above subduction zones. Carbonation of peridotite may be an important sink in the global carbon cycle. Zones of 100% magnesite + quartz replacing peridotite, up to 200 m thick, formed where oceanic mantle was thrust over carbonate-bearing metasediments in Oman. Talc + carbonate is an important component of the matrix in subduction mélanges at Santa Catalina Island , California, and the Sanbagawa metamorphic belt, Japan. Engineered systems to emulate natural mineral carbonation could provide relatively inexpensive CO2 capture and storage [3]. More generally, engineered reaction-driven cracking could supplement or replace hydraulic fracture in geothermal systems, solution mining, and extraction of tight oil and gas. The controls on reaction-driven cracking are poorly understood. Hydration and carbonation reactions can be self-limiting, since they potentially reduce permeability and armor reactive surfaces [4]. Also, in some cases, hydration or carbonation may take place at constant volume. Small changes in volume due to precipitation of solid products increases stress, destabilizing solid reactants, until precipitation and dissolution rates become equal at a steady state stress [5]. In a third case, volume change due to precipitation of solid products causes brittle failure. This has been invoked on qualitative grounds to explain, e.g., complete serpentinization of mantle peridotite [6]. Below ~ 300°C, the available potential energy for hydration and carbonation of olivine could produce stresses of 100's of MPa [2], sufficient to fracture rocks to 10 km depth or more, causing brittle failure below the steady state stress required for constant volume replacement. Natural examples have fracture energy densities due to strain energy density of 100's of MPa [2]. Despite theory and observation, until now lab experiments on peridotite hydration and carbonation have not produced reaction-driven cracking. Slow kinetics and limited reactive surface area in low porosity samples may be the cause. Also, maximum stress may be limited by 'disjoining pressure', above which nano-films along grain boundaries collapse, and crystal growth essentially ceases [7]. To address these issues, we've begun experiments on analog materials with fast reaction rates, e.g., CaO + H2O = Ca(OH)2, to efficiently investigate the role of confining pressure and other factors on reaction-driven fracture events. Intriguingly, commercially available 'demolition mortar', largely CaO, produces stresses of 70 MPa or more around 1 inch bore holes at room T and P [8], even though there is a free surface at the top of the borehole, and hydration in a 'closed' system creates ~ 40% air-filled pore space. [1] Jamtveit et al EPSL 08 [2] Kelemen & Hirth EPSL 12 [3] Kelemen et al AREPS 11 [4] Aharonov et al JGR 98 [5] Fletcher & Merino GCA 01 [6] Macdonald & Fyfe T'phys 85 [7] Espinosa-Marzal & Scherer GSL Special Papers 10 [8] Laefer et al Mag Concrete Res 10

  12. 32 CFR 537.8 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... report or investigation. A notice will be furnished to all parties that the government has been assigned... 32 National Defense 3 2013-07-01 2013-07-01 false Investigation. 537.8 Section 537.8 National... THE UNITED STATES 537.8 Investigation. (a) Claims over $50,000. Hands-on investigation will...

  13. 15 CFR 25.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Investigation. 25.4 Section 25.4... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  14. 49 CFR 659.35 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... agency. (d) Each investigation must be documented in a final report that includes a description of... investigation report must be formally adopted by the oversight agency for each accident investigation. (1) If... investigation report to the rail transit agency. (2) If the oversight agency has authorized an entity other...

  15. 15 CFR 8.10 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Compliance 8.10 Investigations. (a) Making the investigation. The responsible Department official or his designee will make a prompt investigation whenever a compliance review, report, complaint, or any other information indicates a possible failure to comply with this part. The investigation shall include,...

  16. 12 CFR 269b.240 - The investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 3 2010-01-01 2010-01-01 false The investigation. 269b.240 Section 269b.240... CHARGES OF UNFAIR LABOR PRACTICES Preliminary Investigation 269b.240 The investigation. (a) The purpose of the investigation is (1) to ascertain, analyze, and apply the relevant facts in order to...

  17. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... investigating official shall report the findings and conclusions of such investigation to the reviewing official... report or referral to avoid interference with an investigation into criminal misconduct or a criminal... 31 Money and Finance: Treasury 1 2013-07-01 2013-07-01 false Investigation. 16.4 Section...

  18. 49 CFR 31.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 49 Transportation 1 2013-10-01 2013-10-01 false Investigation. 31.4 Section 31.4 Transportation Office of the Secretary of Transportation PROGRAM FRAUD CIVIL REMEDIES 31.4 Investigation. (a) If...

  19. 10 CFR 1013.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... a report or referral to the reviewing official to avoid interference with a criminal investigation... 10 Energy 4 2011-01-01 2011-01-01 false Investigation. 1013.4 Section 1013.4 Energy DEPARTMENT...

  20. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Institutional investigation. 93.310 Section 93.310... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  1. 7 CFR 1.304 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 1 2013-01-01 2013-01-01 false Investigation. 1.304 Section 1.304 Agriculture Office... Hearings Under the Program Fraud Civil Remedies Act of 1986 1.304 Investigation. (a) The investigating... Remedies Act may be warranted, the investigating official shall submit a report containing findings...

  2. 40 CFR 27.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Investigation. 27.4 Section 27.4... Investigation. (a) If the investigating official concludes that a subpoena pursuant to the authority conferred... Act may be warranted, the investigating official shall submit a report containing the findings...

  3. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Institutional investigation. 93.310 Section 93.310... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  4. 29 CFR 22.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 29 Labor 1 2013-07-01 2013-07-01 false Investigation. 22.4 Section 22.4 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 22.4 Investigation. (a) If an...

  5. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Institutional investigation. 93.310 Section 93.310... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  6. 5 CFR 185.104 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Investigation. 185.104 Section 185.104... 185.104 Investigation. (a) If an investigating official concludes that a subpoena pursuant to...

  7. 48 CFR 22.406-8 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    .... (b) Investigation report. The contracting officer must review the investigation report on receipt and... contracting officer permit the contractor to examine the investigation report. Also, the contracting officer... Investigation Summary Sheet, is the first page of the report; and (2) The agency head must process the report...

  8. 29 CFR 1960.29 - Accident investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 9 2013-07-01 2013-07-01 false Accident investigation. 1960.29 Section 1960.29 Labor... MATTERS Inspection and Abatement 1960.29 Accident investigation. (a) While all accidents should be investigated, including accidents involving property damage only, the extent of such investigation shall...

  9. 43 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... postpone a report or referral to the reviewing official to avoid interference with a criminal investigation... 43 Public Lands: Interior 1 2012-10-01 2011-10-01 true Investigation. 35.4 Section 35.4 Public... AND STATEMENTS 35.4 Investigation. (a) If the investigating official concludes that a...

  10. 43 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... postpone a report or referral to the reviewing official to avoid interference with a criminal investigation... 43 Public Lands: Interior 1 2014-10-01 2014-10-01 false Investigation. 35.4 Section 35.4 Public... AND STATEMENTS 35.4 Investigation. (a) If the investigating official concludes that a...

  11. 15 CFR 25.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Investigation. 25.4 Section 25.4... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  12. 14 CFR 1264.103 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 14 Aeronautics and Space 5 2014-01-01 2014-01-01 false Investigation. 1264.103 Section 1264.103... PENALTIES ACT OF 1986 1264.103 Investigation. (a) If an investigating official concludes that a...

  13. 49 CFR 31.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 49 Transportation 1 2010-10-01 2010-10-01 false Investigation. 31.4 Section 31.4 Transportation Office of the Secretary of Transportation PROGRAM FRAUD CIVIL REMEDIES 31.4 Investigation. (a) If...

  14. 32 CFR 537.8 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... report or investigation. A notice will be furnished to all parties that the government has been assigned... 32 National Defense 3 2011-07-01 2009-07-01 true Investigation. 537.8 Section 537.8 National... THE UNITED STATES 537.8 Investigation. (a) Claims over $50,000. Hands-on investigation will...

  15. 10 CFR 1013.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... a report or referral to the reviewing official to avoid interference with a criminal investigation... 10 Energy 4 2010-01-01 2010-01-01 false Investigation. 1013.4 Section 1013.4 Energy DEPARTMENT...

  16. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... investigating official shall report the findings and conclusions of such investigation to the reviewing official... report or referral to avoid interference with an investigation into criminal misconduct or a criminal... 31 Money and Finance: Treasury 1 2011-07-01 2011-07-01 false Investigation. 16.4 Section...

  17. 7 CFR 1.304 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 1 2014-01-01 2014-01-01 false Investigation. 1.304 Section 1.304 Agriculture Office... Hearings Under the Program Fraud Civil Remedies Act of 1986 1.304 Investigation. (a) The investigating... Remedies Act may be warranted, the investigating official shall submit a report containing findings...

  18. 29 CFR 22.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 29 Labor 1 2012-07-01 2012-07-01 false Investigation. 22.4 Section 22.4 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 22.4 Investigation. (a) If an...

  19. 45 CFR 79.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 45 Public Welfare 1 2014-10-01 2014-10-01 false Investigation. 79.4 Section 79.4 Public Welfare... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  20. 7 CFR 1.304 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 1 2012-01-01 2012-01-01 false Investigation. 1.304 Section 1.304 Agriculture Office... Hearings Under the Program Fraud Civil Remedies Act of 1986 1.304 Investigation. (a) The investigating... Remedies Act may be warranted, the investigating official shall submit a report containing findings...

  1. 49 CFR 225.31 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Code provides that no part of a report of an accident investigation under section 20902 of title 49 of... damages growing out of any matter mentioned in the accident investigation report. ... accidents/incidents are investigated when it appears that an investigation would substantially serve...

  2. 40 CFR 27.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Investigation. 27.4 Section 27.4... Investigation. (a) If the investigating official concludes that a subpoena pursuant to the authority conferred... Act may be warranted, the investigating official shall submit a report containing the findings...

  3. 22 CFR 521.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Investigation. 521.4 Section 521.4 Foreign... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  4. 43 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... postpone a report or referral to the reviewing official to avoid interference with a criminal investigation... 43 Public Lands: Interior 1 2013-10-01 2013-10-01 false Investigation. 35.4 Section 35.4 Public... AND STATEMENTS 35.4 Investigation. (a) If the investigating official concludes that a...

  5. 22 CFR 224.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Investigation. 224.4 Section 224.4 Foreign....4 Investigation. (a) If an investigating official concludes that a subpoena pursuant to the... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  6. 7 CFR 1.304 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Investigation. 1.304 Section 1.304 Agriculture Office... Hearings Under the Program Fraud Civil Remedies Act of 1986 1.304 Investigation. (a) The investigating... Remedies Act may be warranted, the investigating official shall submit a report containing findings...

  7. 29 CFR 22.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 29 Labor 1 2010-07-01 2010-07-01 true Investigation. 22.4 Section 22.4 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 22.4 Investigation. (a) If an...

  8. 45 CFR 79.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Investigation. 79.4 Section 79.4 Public Welfare... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  9. 29 CFR 1960.29 - Accident investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 9 2014-07-01 2014-07-01 false Accident investigation. 1960.29 Section 1960.29 Labor... MATTERS Inspection and Abatement 1960.29 Accident investigation. (a) While all accidents should be investigated, including accidents involving property damage only, the extent of such investigation shall...

  10. 15 CFR 25.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 15 Commerce and Foreign Trade 1 2012-01-01 2012-01-01 false Investigation. 25.4 Section 25.4... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  11. 15 CFR 25.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 15 Commerce and Foreign Trade 1 2014-01-01 2014-01-01 false Investigation. 25.4 Section 25.4... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  12. 5 CFR 185.104 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Investigation. 185.104 Section 185.104... 185.104 Investigation. (a) If an investigating official concludes that a subpoena pursuant to...

  13. 29 CFR 1960.29 - Accident investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Accident investigation. 1960.29 Section 1960.29 Labor... MATTERS Inspection and Abatement 1960.29 Accident investigation. (a) While all accidents should be investigated, including accidents involving property damage only, the extent of such investigation shall...

  14. 49 CFR 225.31 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Code provides that no part of a report of an accident investigation under section 20902 of title 49 of... damages growing out of any matter mentioned in the accident investigation report. ... accidents/incidents are investigated when it appears that an investigation would substantially serve...

  15. 5 CFR 185.104 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Investigation. 185.104 Section 185.104... 185.104 Investigation. (a) If an investigating official concludes that a subpoena pursuant to...

  16. 22 CFR 224.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Investigation. 224.4 Section 224.4 Foreign....4 Investigation. (a) If an investigating official concludes that a subpoena pursuant to the... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  17. 15 CFR 25.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Investigation. 25.4 Section 25.4... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  18. 15 CFR 8.10 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Compliance 8.10 Investigations. (a) Making the investigation. The responsible Department official or his designee will make a prompt investigation whenever a compliance review, report, complaint, or any other information indicates a possible failure to comply with this part. The investigation shall include,...

  19. 45 CFR 79.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 1 2011-10-01 2011-10-01 false Investigation. 79.4 Section 79.4 Public Welfare... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  20. 12 CFR 269b.240 - The investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 4 2014-01-01 2014-01-01 false The investigation. 269b.240 Section 269b.240... (CONTINUED) CHARGES OF UNFAIR LABOR PRACTICES Preliminary Investigation 269b.240 The investigation. (a) The purpose of the investigation is (1) to ascertain, analyze, and apply the relevant facts in order...

  1. 10 CFR 1013.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... a report or referral to the reviewing official to avoid interference with a criminal investigation... 10 Energy 4 2014-01-01 2014-01-01 false Investigation. 1013.4 Section 1013.4 Energy DEPARTMENT...

  2. 29 CFR 1960.29 - Accident investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 9 2011-07-01 2011-07-01 false Accident investigation. 1960.29 Section 1960.29 Labor... MATTERS Inspection and Abatement 1960.29 Accident investigation. (a) While all accidents should be investigated, including accidents involving property damage only, the extent of such investigation shall...

  3. 43 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... postpone a report or referral to the reviewing official to avoid interference with a criminal investigation... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false Investigation. 35.4 Section 35.4 Public... AND STATEMENTS 35.4 Investigation. (a) If the investigating official concludes that a...

  4. 40 CFR 27.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Investigation. 27.4 Section 27.4... Investigation. (a) If the investigating official concludes that a subpoena pursuant to the authority conferred... Act may be warranted, the investigating official shall submit a report containing the findings...

  5. 14 CFR 1264.103 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 14 Aeronautics and Space 5 2013-01-01 2013-01-01 false Investigation. 1264.103 Section 1264.103... PENALTIES ACT OF 1986 1264.103 Investigation. (a) If an investigating official concludes that a...

  6. 49 CFR 31.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 49 Transportation 1 2011-10-01 2011-10-01 false Investigation. 31.4 Section 31.4 Transportation Office of the Secretary of Transportation PROGRAM FRAUD CIVIL REMEDIES 31.4 Investigation. (a) If...

  7. 45 CFR 79.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 1 2013-10-01 2013-10-01 false Investigation. 79.4 Section 79.4 Public Welfare... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  8. 45 CFR 79.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 1 2012-10-01 2012-10-01 false Investigation. 79.4 Section 79.4 Public Welfare... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  9. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... investigating official shall report the findings and conclusions of such investigation to the reviewing official... report or referral to avoid interference with an investigation into criminal misconduct or a criminal... 31 Money and Finance: Treasury 1 2012-07-01 2012-07-01 false Investigation. 16.4 Section...

  10. 43 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... postpone a report or referral to the reviewing official to avoid interference with a criminal investigation... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Investigation. 35.4 Section 35.4 Public... AND STATEMENTS 35.4 Investigation. (a) If the investigating official concludes that a...

  11. 22 CFR 224.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Investigation. 224.4 Section 224.4 Foreign....4 Investigation. (a) If an investigating official concludes that a subpoena pursuant to the... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  12. 10 CFR 1013.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... a report or referral to the reviewing official to avoid interference with a criminal investigation... 10 Energy 4 2012-01-01 2012-01-01 false Investigation. 1013.4 Section 1013.4 Energy DEPARTMENT...

  13. 49 CFR 659.35 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... agency. (d) Each investigation must be documented in a final report that includes a description of... investigation report must be formally adopted by the oversight agency for each accident investigation. (1) If... investigation report to the rail transit agency. (2) If the oversight agency has authorized an entity other...

  14. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... investigating official shall report the findings and conclusions of such investigation to the reviewing official... report or referral to avoid interference with an investigation into criminal misconduct or a criminal... 31 Money and Finance: Treasury 1 2014-07-01 2014-07-01 false Investigation. 16.4 Section...

  15. 49 CFR 225.31 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Code provides that no part of a report of an accident investigation under section 20902 of title 49 of... damages growing out of any matter mentioned in the accident investigation report. ... accidents/incidents are investigated when it appears that an investigation would substantially serve...

  16. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Investigation, the District Commander will prepare a written report containing all pertinent information and... Investigation, to the Administrator, Office of Bridge Programs. (b) The Preliminary Investigation Report will... alterations. (c) The Chief, Office of Bridge Programs will review the Preliminary Investigation Report...

  17. 15 CFR 8.10 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Compliance 8.10 Investigations. (a) Making the investigation. The responsible Department official or his designee will make a prompt investigation whenever a compliance review, report, complaint, or any other information indicates a possible failure to comply with this part. The investigation shall include,...

  18. 22 CFR 224.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Investigation. 224.4 Section 224.4 Foreign....4 Investigation. (a) If an investigating official concludes that a subpoena pursuant to the... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  19. 49 CFR 31.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 49 Transportation 1 2012-10-01 2012-10-01 false Investigation. 31.4 Section 31.4 Transportation Office of the Secretary of Transportation PROGRAM FRAUD CIVIL REMEDIES 31.4 Investigation. (a) If...

  20. 29 CFR 22.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 29 Labor 1 2014-07-01 2013-07-01 true Investigation. 22.4 Section 22.4 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 22.4 Investigation. (a) If an...

  1. 12 CFR 269b.240 - The investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 12 Banks and Banking 4 2013-01-01 2013-01-01 false The investigation. 269b.240 Section 269b.240... (CONTINUED) CHARGES OF UNFAIR LABOR PRACTICES Preliminary Investigation 269b.240 The investigation. (a) The purpose of the investigation is (1) to ascertain, analyze, and apply the relevant facts in order...

  2. 5 CFR 185.104 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Investigation. 185.104 Section 185.104... 185.104 Investigation. (a) If an investigating official concludes that a subpoena pursuant to...

  3. 49 CFR 225.31 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Code provides that no part of a report of an accident investigation under section 20902 of title 49 of... damages growing out of any matter mentioned in the accident investigation report. ... accidents/incidents are investigated when it appears that an investigation would substantially serve...

  4. 40 CFR 27.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Investigation. 27.4 Section 27.4... Investigation. (a) If the investigating official concludes that a subpoena pursuant to the authority conferred... Act may be warranted, the investigating official shall submit a report containing the findings...

  5. 22 CFR 224.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Investigation. 224.4 Section 224.4 Foreign....4 Investigation. (a) If an investigating official concludes that a subpoena pursuant to the... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  6. 29 CFR 1960.29 - Accident investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 9 2012-07-01 2012-07-01 false Accident investigation. 1960.29 Section 1960.29 Labor... MATTERS Inspection and Abatement 1960.29 Accident investigation. (a) While all accidents should be investigated, including accidents involving property damage only, the extent of such investigation shall...

  7. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Institutional investigation. 93.310 Section 93.310... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  8. 12 CFR 269b.240 - The investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 12 Banks and Banking 3 2011-01-01 2011-01-01 false The investigation. 269b.240 Section 269b.240... CHARGES OF UNFAIR LABOR PRACTICES Preliminary Investigation 269b.240 The investigation. (a) The purpose of the investigation is (1) to ascertain, analyze, and apply the relevant facts in order to...

  9. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Investigation, the District Commander will prepare a written report containing all pertinent information and... Investigation, to the Administrator, Office of Bridge Programs. (b) The Preliminary Investigation Report will... alterations. (c) The Administrator, Office of Bridge Programs will review the Preliminary Investigation...

  10. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... investigating official shall report the findings and conclusions of such investigation to the reviewing official... report or referral to avoid interference with an investigation into criminal misconduct or a criminal... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Investigation. 16.4 Section...

  11. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Investigation, the District Commander will prepare a written report containing all pertinent information and... Investigation, to the Administrator, Office of Bridge Programs. (b) The Preliminary Investigation Report will... alterations. (c) The Chief, Office of Bridge Programs will review the Preliminary Investigation Report...

  12. 12 CFR 269b.240 - The investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 12 Banks and Banking 4 2012-01-01 2012-01-01 false The investigation. 269b.240 Section 269b.240... (CONTINUED) CHARGES OF UNFAIR LABOR PRACTICES Preliminary Investigation 269b.240 The investigation. (a) The purpose of the investigation is (1) to ascertain, analyze, and apply the relevant facts in order...

  13. 22 CFR 521.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 2 2014-04-01 2014-04-01 false Investigation. 521.4 Section 521.4 Foreign... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  14. 22 CFR 521.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 2 2013-04-01 2009-04-01 true Investigation. 521.4 Section 521.4 Foreign... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  15. 14 CFR 1264.103 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 14 Aeronautics and Space 5 2012-01-01 2012-01-01 false Investigation. 1264.103 Section 1264.103... PENALTIES ACT OF 1986 1264.103 Investigation. (a) If an investigating official concludes that a...

  16. 48 CFR 22.406-8 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    .... (b) Investigation report. The contracting officer must review the investigation report on receipt and... contracting officer permit the contractor to examine the investigation report. Also, the contracting officer... Investigation Summary Sheet, is the first page of the report; and (2) The agency head must process the report...

  17. 15 CFR 8.10 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Compliance 8.10 Investigations. (a) Making the investigation. The responsible Department official or his designee will make a prompt investigation whenever a compliance review, report, complaint, or any other information indicates a possible failure to comply with this part. The investigation shall include,...

  18. 14 CFR 1264.103 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 14 Aeronautics and Space 5 2011-01-01 2010-01-01 true Investigation. 1264.103 Section 1264.103... PENALTIES ACT OF 1986 1264.103 Investigation. (a) If an investigating official concludes that a...

  19. 49 CFR 659.35 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... agency. (d) Each investigation must be documented in a final report that includes a description of... investigation report must be formally adopted by the oversight agency for each accident investigation. (1) If... investigation report to the rail transit agency. (2) If the oversight agency has authorized an entity other...

  20. 5 CFR 185.104 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Investigation. 185.104 Section 185.104... 185.104 Investigation. (a) If an investigating official concludes that a subpoena pursuant to...

  1. 10 CFR 1013.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... a report or referral to the reviewing official to avoid interference with a criminal investigation... 10 Energy 4 2013-01-01 2013-01-01 false Investigation. 1013.4 Section 1013.4 Energy DEPARTMENT...

  2. 40 CFR 27.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Investigation. 27.4 Section 27.4... Investigation. (a) If the investigating official concludes that a subpoena pursuant to the authority conferred... Act may be warranted, the investigating official shall submit a report containing the findings...

  3. 49 CFR 225.31 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Code provides that no part of a report of an accident investigation under section 20902 of title 49 of... damages growing out of any matter mentioned in the accident investigation report. ... accidents/incidents are investigated when it appears that an investigation would substantially serve...

  4. 15 CFR 8.10 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Compliance 8.10 Investigations. (a) Making the investigation. The responsible Department official or his designee will make a prompt investigation whenever a compliance review, report, complaint, or any other information indicates a possible failure to comply with this part. The investigation shall include,...

  5. 22 CFR 521.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 2 2011-04-01 2009-04-01 true Investigation. 521.4 Section 521.4 Foreign... Investigation. (a) If an investigating official concludes that a subpoena pursuant to the authority conferred by... Act may be warranted, the investigating official shall submit a report containing the findings...

  6. 7 CFR 1.304 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 1 2011-01-01 2011-01-01 false Investigation. 1.304 Section 1.304 Agriculture Office... Hearings Under the Program Fraud Civil Remedies Act of 1986 1.304 Investigation. (a) The investigating... Remedies Act may be warranted, the investigating official shall submit a report containing findings...

  7. 29 CFR 22.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 29 Labor 1 2011-07-01 2011-07-01 false Investigation. 22.4 Section 22.4 Labor Office of the Secretary of Labor PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 22.4 Investigation. (a) If an...

  8. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Institutional investigation. 93.310 Section 93.310... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  9. 49 CFR 31.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... investigating official shall submit a report containing the findings and conclusions of such investigation to... 49 Transportation 1 2014-10-01 2014-10-01 false Investigation. 31.4 Section 31.4 Transportation Office of the Secretary of Transportation PROGRAM FRAUD CIVIL REMEDIES 31.4 Investigation. (a) If...

  10. 21 CFR 312.64 - Investigator reports.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... the event (e.g., death from anaphylaxis). In that case, the investigator must immediately report the... participation in the investigation. (d) Financial disclosure reports. The clinical investigator shall provide... course of the investigation and for 1 year following the completion of the study....

  11. 15 CFR 20.13 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Procedures 20.13 Investigation. (a) Informal investigation: (1) DOC will investigate complaints that are... the initial investigation, DOC will use informal factfinding methods, including joint or separate... on terms that are mutually agreeable to the parties. DOC may seek the assistance of any...

  12. 15 CFR 20.13 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Procedures 20.13 Investigation. (a) Informal investigation: (1) DOC will investigate complaints that are... the initial investigation, DOC will use informal factfinding methods, including joint or separate... on terms that are mutually agreeable to the parties. DOC may seek the assistance of any...

  13. 40 CFR 1620.4 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 33 2014-07-01 2014-07-01 false Investigations. 1620.4 Section 1620.4 Protection of Environment CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD ADMINISTRATIVE CLAIMS ARISING UNDER THE FEDERAL TORT CLAIMS ACT 1620.4 Investigations. CSB may investigate, or may request any...

  14. 40 CFR 1620.4 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 34 2013-07-01 2013-07-01 false Investigations. 1620.4 Section 1620.4 Protection of Environment CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD ADMINISTRATIVE CLAIMS ARISING UNDER THE FEDERAL TORT CLAIMS ACT 1620.4 Investigations. CSB may investigate, or may request any...

  15. 40 CFR 1620.4 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 32 2010-07-01 2010-07-01 false Investigations. 1620.4 Section 1620.4 Protection of Environment CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD ADMINISTRATIVE CLAIMS ARISING UNDER THE FEDERAL TORT CLAIMS ACT 1620.4 Investigations. CSB may investigate, or may request any...

  16. 40 CFR 1620.4 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 33 2011-07-01 2011-07-01 false Investigations. 1620.4 Section 1620.4 Protection of Environment CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD ADMINISTRATIVE CLAIMS ARISING UNDER THE FEDERAL TORT CLAIMS ACT 1620.4 Investigations. CSB may investigate, or may request any...

  17. 40 CFR 1620.4 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 34 2012-07-01 2012-07-01 false Investigations. 1620.4 Section 1620.4 Protection of Environment CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD ADMINISTRATIVE CLAIMS ARISING UNDER THE FEDERAL TORT CLAIMS ACT 1620.4 Investigations. CSB may investigate, or may request any...

  18. 21 CFR 312.55 - Informing investigators.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 5 2013-04-01 2013-04-01 false Informing investigators. 312.55 Section 312.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS FOR HUMAN USE INVESTIGATIONAL NEW DRUG APPLICATION Responsibilities of Sponsors and Investigators 312.55 Informing investigators. (a) Before...

  19. 49 CFR 659.35 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 7 2011-10-01 2011-10-01 false Investigations. 659.35 Section 659.35... Agency § 659.35 Investigations. (a) The oversight agency must investigate, or cause to be investigated.... (f) The oversight agency shall have the authority to require periodic status reports that...

  20. 49 CFR 659.35 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 7 2013-10-01 2013-10-01 false Investigations. 659.35 Section 659.35... Agency § 659.35 Investigations. (a) The oversight agency must investigate, or cause to be investigated.... (f) The oversight agency shall have the authority to require periodic status reports that...

  1. 46 CFR 502.285 - Investigational hearings.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 9 2013-10-01 2013-10-01 false Investigational hearings. 502.285 Section 502.285 Shipping FEDERAL MARITIME COMMISSION GENERAL AND ADMINISTRATIVE PROVISIONS RULES OF PRACTICE AND PROCEDURE Nonadjudicatory Investigations 502.285 Investigational hearings. (a) Investigational hearings, as...

  2. 46 CFR 502.285 - Investigational hearings.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 9 2014-10-01 2014-10-01 false Investigational hearings. 502.285 Section 502.285 Shipping FEDERAL MARITIME COMMISSION GENERAL AND ADMINISTRATIVE PROVISIONS RULES OF PRACTICE AND PROCEDURE Nonadjudicatory Investigations 502.285 Investigational hearings. (a) Investigational hearings, as...

  3. 46 CFR 502.285 - Investigational hearings.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 9 2012-10-01 2012-10-01 false Investigational hearings. 502.285 Section 502.285 Shipping FEDERAL MARITIME COMMISSION GENERAL AND ADMINISTRATIVE PROVISIONS RULES OF PRACTICE AND PROCEDURE Nonadjudicatory Investigations 502.285 Investigational hearings. (a) Investigational hearings, as...

  4. 46 CFR 502.285 - Investigational hearings.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 9 2011-10-01 2011-10-01 false Investigational hearings. 502.285 Section 502.285 Shipping FEDERAL MARITIME COMMISSION GENERAL AND ADMINISTRATIVE PROVISIONS RULES OF PRACTICE AND PROCEDURE Nonadjudicatory Investigations 502.285 Investigational hearings. (a) Investigational hearings, as...

  5. 46 CFR 502.285 - Investigational hearings.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 9 2010-10-01 2010-10-01 false Investigational hearings. 502.285 Section 502.285 Shipping FEDERAL MARITIME COMMISSION GENERAL AND ADMINISTRATIVE PROVISIONS RULES OF PRACTICE AND PROCEDURE Nonadjudicatory Investigations 502.285 Investigational hearings. (a) Investigational hearings, as...

  6. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... investigation, OIG may defer an NSF inquiry or investigation until it receives the results of that external.... (b) If OIG decides to initiate an NSF investigation, it must give prompt written notice to the... Investigation, or another Federal agency is underway or under active consideration by these agencies or the...

  7. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... investigation, OIG may defer an NSF inquiry or investigation until it receives the results of that external.... (b) If OIG decides to initiate an NSF investigation, it must give prompt written notice to the... Investigation, or another Federal agency is underway or under active consideration by these agencies or the...

  8. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... investigation, OIG may defer an NSF inquiry or investigation until it receives the results of that external.... (b) If OIG decides to initiate an NSF investigation, it must give prompt written notice to the... Investigation, or another Federal agency is underway or under active consideration by these agencies or the...

  9. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., other than the complainant, in accordance with 29 CFR part 70. (d) Investigation under the six... protected activity. (e) Investigation under the Energy Reorganization Act. In addition to the investigative... only to investigations under the Energy Reorganization Act. (1) A complaint of alleged violation...

  10. 21 CFR 812.46 - Monitoring investigations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... sponsor may not resume a terminated investigation without IRB and FDA approval. If the device is not a significant risk device, a sponsor may not resume a terminated investigation without IRB approval and, if...

  11. 21 CFR 812.46 - Monitoring investigations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... sponsor may not resume a terminated investigation without IRB and FDA approval. If the device is not a significant risk device, a sponsor may not resume a terminated investigation without IRB approval and, if...

  12. Investigation Of Far-Field Diffraction

    NASA Technical Reports Server (NTRS)

    Wang, Yaujen; Scholl, Marija S.

    1993-01-01

    Report describes experimental investigation of far-field diffracton by normally illuminated circular apertures with diameters of several wavelengths of incident light. Purpose of investigation to determine whether Keller's "geometrical" theory of diffraction valid for diffraction phenomena of this kind.

  13. Cancer Clinical Investigator Team Leadership Award (CCITLA)

    Cancer.gov

    NCIs Cancer Clinical Investigator Team Leadership Awards (CCITLAs) recognize mid-career clinical investigators at NCI-designated Cancer Centers working to improve the lives of people with cancer through clinical trials.

  14. 46 CFR 298.15 - Investigation fee.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Eligibility 298.15 Investigation fee. (a) In general. Before we issue a Letter Commitment, you shall pay us an investigation fee. The Letter Commitment will state the fee which is based on the formula...

  15. 46 CFR 298.15 - Investigation fee.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Eligibility 298.15 Investigation fee. (a) In general. Before we issue a Letter Commitment, you shall pay us an investigation fee. The Letter Commitment will state the fee which is based on the formula...

  16. 46 CFR 298.15 - Investigation fee.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Eligibility 298.15 Investigation fee. (a) In general. Before we issue a Letter Commitment, you shall pay us an investigation fee. The Letter Commitment will state the fee which is based on the formula...

  17. 49 CFR 260.11 - Investigation charge.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Investigation charge. 260.11 Section 260.11... REHABILITATION AND IMPROVEMENT FINANCING PROGRAM Overview 260.11 Investigation charge. (a) Applicants for financial assistance under this part may be required to pay an investigation charge of up to one-half of...

  18. 49 CFR 260.11 - Investigation charge.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Investigation charge. 260.11 Section 260.11... REHABILITATION AND IMPROVEMENT FINANCING PROGRAM Overview 260.11 Investigation charge. (a) Applicants for financial assistance under this part may be required to pay an investigation charge of up to one-half of...

  19. 49 CFR 260.11 - Investigation charge.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Investigation charge. 260.11 Section 260.11... REHABILITATION AND IMPROVEMENT FINANCING PROGRAM Overview 260.11 Investigation charge. (a) Applicants for financial assistance under this part may be required to pay an investigation charge of up to one-half of...

  20. 49 CFR 260.11 - Investigation charge.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Investigation charge. 260.11 Section 260.11... REHABILITATION AND IMPROVEMENT FINANCING PROGRAM Overview 260.11 Investigation charge. (a) Applicants for financial assistance under this part may be required to pay an investigation charge of up to one-half of...

  1. 49 CFR 260.11 - Investigation charge.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Investigation charge. 260.11 Section 260.11... REHABILITATION AND IMPROVEMENT FINANCING PROGRAM Overview 260.11 Investigation charge. (a) Applicants for financial assistance under this part may be required to pay an investigation charge of up to one-half of...

  2. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of 46 CFR part 4. (b) Representatives of the U.S. Geological Survey may participate in these... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Investigation procedures. 140.203...) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations 140.203 Investigation procedures....

  3. 28 CFR 71.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Investigation. 71.4 Section 71.4 Judicial... REMEDIES ACT OF 1986 Implementation for Actions Initiated by the Department of Justice 71.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  4. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... occupational injury at the mine. Each operator of a mine shall develop a report of each investigation. No... miners are employed may, with respect to that mine, use Form 7000-1 as an investigation report respecting... investigation report conducted or prepared by MSHA to comply with this paragraph. An operator shall submit...

  5. 20 CFR 355.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 20 Employees' Benefits 1 2013-04-01 2012-04-01 true Investigation. 355.4 Section 355.4 Employees... UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 355.4 Investigation. (a) If an...

  6. 34 CFR 33.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Investigation. 33.4 Section 33.4 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT 33.4 Investigation. (a) If... Remedies Act may be warranted, the investigating official shall submit a report containing the findings...

  7. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... investigation and report. (1) If the Director determines that the agency has conducted an adequate investigation... investigation. If the Director has reason to believe that an employee is violating or has violated any ethics provision, the Director may recommend to the head of the agency that the agency conduct such...

  8. 40 CFR 68.81 - Incident investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 16 2012-07-01 2012-07-01 false Incident investigation. 68.81 Section...) CHEMICAL ACCIDENT PREVENTION PROVISIONS Program 3 Prevention Program 68.81 Incident investigation. (a... resulted in a catastrophic release of a regulated substance. (b) An incident investigation shall...

  9. 24 CFR 28.15 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... assertion of an identified privilege. (c) Investigation report. If the Inspector General or designee... submit a report containing the findings and conclusions of the investigation to the General Counsel or... submitting a report to the General Counsel to avoid interference with a criminal investigation or...

  10. 28 CFR 71.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Investigation. 71.4 Section 71.4 Judicial... REMEDIES ACT OF 1986 Implementation for Actions Initiated by the Department of Justice 71.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  11. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... investigation and report. (1) If the Director determines that the agency has conducted an adequate investigation... investigation. If the Director has reason to believe that an employee is violating or has violated any ethics provision, the Director may recommend to the head of the agency that the agency conduct such...

  12. 22 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Investigation. 35.4 Section 35.4 Foreign Relations DEPARTMENT OF STATE CLAIMS AND STOLEN PROPERTY PROGRAM FRAUD CIVIL REMEDIES 35.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  13. 34 CFR 33.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 34 Education 1 2014-07-01 2014-07-01 false Investigation. 33.4 Section 33.4 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT 33.4 Investigation. (a) If... Remedies Act may be warranted, the investigating official shall submit a report containing the findings...

  14. 41 CFR 105-70.004 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... report containing the findings and conclusions of such investigation to the reviewing official. (c... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Investigation. 105-70... Administration 70-IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 105-70.004 Investigation....

  15. 22 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Investigation. 35.4 Section 35.4 Foreign Relations DEPARTMENT OF STATE CLAIMS AND STOLEN PROPERTY PROGRAM FRAUD CIVIL REMEDIES 35.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  16. 28 CFR 71.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Investigation. 71.4 Section 71.4 Judicial... REMEDIES ACT OF 1986 Implementation for Actions Initiated by the Department of Justice 71.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  17. 38 CFR 42.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... shall submit a report containing the findings and conclusions of the investigation to the reviewing... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Investigation. 42.4... IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT 42.4 Investigation. (a) All allegations of liability...

  18. 34 CFR 33.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 1 2013-07-01 2013-07-01 false Investigation. 33.4 Section 33.4 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT 33.4 Investigation. (a) If... Remedies Act may be warranted, the investigating official shall submit a report containing the findings...

  19. 22 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Investigation. 35.4 Section 35.4 Foreign Relations DEPARTMENT OF STATE CLAIMS AND STOLEN PROPERTY PROGRAM FRAUD CIVIL REMEDIES 35.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  20. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... occupational injury at the mine. Each operator of a mine shall develop a report of each investigation. No... miners are employed may, with respect to that mine, use Form 7000-1 as an investigation report respecting... investigation report conducted or prepared by MSHA to comply with this paragraph. An operator shall submit...

  1. 17 CFR 8.07 - Investigation reports.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... reports. (a) The enforcement staff shall submit a written investigation report to the disciplinary... report shall include the reason the investigation was initiated, a summary of the complaint, if any, the... warning letter issued by the enforcement staff shall be included in the investigation report required...

  2. 28 CFR 71.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Investigation. 71.4 Section 71.4 Judicial... REMEDIES ACT OF 1986 Implementation for Actions Initiated by the Department of Justice 71.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  3. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... occupational injury at the mine. Each operator of a mine shall develop a report of each investigation. No... miners are employed may, with respect to that mine, use Form 7000-1 as an investigation report respecting... investigation report conducted or prepared by MSHA to comply with this paragraph. An operator shall submit...

  4. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... of 46 CFR part 4. (b) Representatives of the U.S. Geological Survey may participate in these... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Investigation procedures. 140.203...) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations 140.203 Investigation procedures....

  5. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... investigation and report. (1) If the Director determines that the agency has conducted an adequate investigation... investigation. If the Director has reason to believe that an employee is violating or has violated any ethics provision, the Director may recommend to the head of the agency that the agency conduct such...

  6. 24 CFR 28.15 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... assertion of an identified privilege. (c) Investigation report. If the Inspector General or designee... submit a report containing the findings and conclusions of the investigation to the General Counsel or... submitting a report to the General Counsel to avoid interference with a criminal investigation or...

  7. 38 CFR 42.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... shall submit a report containing the findings and conclusions of the investigation to the reviewing... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Investigation. 42.4... IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT 42.4 Investigation. (a) All allegations of liability...

  8. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... of 46 CFR part 4. (b) Representatives of the U.S. Geological Survey may participate in these... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Investigation procedures. 140.203...) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations 140.203 Investigation procedures....

  9. 10 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... shall submit a report containing the findings and conclusions of such investigation to the reviewing official. To the extent possible, before initiating an investigation or submitting a report involving a... 10 Energy 1 2010-01-01 2010-01-01 false Investigation. 13.4 Section 13.4 Energy NUCLEAR...

  10. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Commander will develop a comprehensive report, termed the Detailed Investigation Report, which will... Investigation Report to the Chief, Office of Bridge Programs for review together with a recommendation of... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Detailed investigation....

  11. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... District Commander will develop a comprehensive report, termed the Detailed Investigation Report, which... Detailed Investigation Report to the Administrator, Office of Bridge Programs for review together with a... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Detailed investigation....

  12. 38 CFR 42.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... shall submit a report containing the findings and conclusions of the investigation to the reviewing... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Investigation. 42.4... IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT 42.4 Investigation. (a) All allegations of liability...

  13. 41 CFR 105-70.004 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... report containing the findings and conclusions of such investigation to the reviewing official. (c... 41 Public Contracts and Property Management 3 2014-01-01 2014-01-01 false Investigation. 105-70... Administration 70-IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 105-70.004 Investigation....

  14. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... occupational injury at the mine. Each operator of a mine shall develop a report of each investigation. No... miners are employed may, with respect to that mine, use Form 7000-1 as an investigation report respecting... investigation report conducted or prepared by MSHA to comply with this paragraph. An operator shall submit...

  15. 38 CFR 42.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... shall submit a report containing the findings and conclusions of the investigation to the reviewing... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Investigation. 42.4... IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT 42.4 Investigation. (a) All allegations of liability...

  16. 34 CFR 33.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 1 2011-07-01 2011-07-01 false Investigation. 33.4 Section 33.4 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT 33.4 Investigation. (a) If... Remedies Act may be warranted, the investigating official shall submit a report containing the findings...

  17. 20 CFR 355.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 20 Employees' Benefits 1 2011-04-01 2011-04-01 false Investigation. 355.4 Section 355.4 Employees... UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 355.4 Investigation. (a) If an...

  18. 10 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... shall submit a report containing the findings and conclusions of such investigation to the reviewing official. To the extent possible, before initiating an investigation or submitting a report involving a... 10 Energy 1 2014-01-01 2014-01-01 false Investigation. 13.4 Section 13.4 Energy NUCLEAR...

  19. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... of 46 CFR part 4. (b) Representatives of the U.S. Geological Survey may participate in these... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Investigation procedures. 140.203...) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations 140.203 Investigation procedures....

  20. 17 CFR 8.07 - Investigation reports.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... reports. (a) The enforcement staff shall submit a written investigation report to the disciplinary... report shall include the reason the investigation was initiated, a summary of the complaint, if any, the... warning letter issued by the enforcement staff shall be included in the investigation report required...

  1. 34 CFR 33.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 34 Education 1 2012-07-01 2012-07-01 false Investigation. 33.4 Section 33.4 Education Office of the Secretary, Department of Education PROGRAM FRAUD CIVIL REMEDIES ACT 33.4 Investigation. (a) If... Remedies Act may be warranted, the investigating official shall submit a report containing the findings...

  2. 10 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... shall submit a report containing the findings and conclusions of such investigation to the reviewing official. To the extent possible, before initiating an investigation or submitting a report involving a... 10 Energy 1 2013-01-01 2013-01-01 false Investigation. 13.4 Section 13.4 Energy NUCLEAR...

  3. 37 CFR 11.22 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) The OED Director is authorized to investigate possible grounds for discipline. An investigation may be... investigation. (b) Any person possessing information or evidence concerning possible grounds for discipline of a practitioner may report the information or evidence to the OED Director. The OED Director may request that...

  4. 10 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... shall submit a report containing the findings and conclusions of such investigation to the reviewing official. To the extent possible, before initiating an investigation or submitting a report involving a... 10 Energy 1 2011-01-01 2011-01-01 false Investigation. 13.4 Section 13.4 Energy NUCLEAR...

  5. 24 CFR 28.15 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... assertion of an identified privilege. (c) Investigation report. If the Inspector General or designee... submit a report containing the findings and conclusions of the investigation to the General Counsel or... submitting a report to the General Counsel to avoid interference with a criminal investigation or...

  6. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... District Commander will develop a comprehensive report, termed the Detailed Investigation Report, which... Detailed Investigation Report to the Administrator, Office of Bridge Programs for review together with a... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Detailed investigation....

  7. 22 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Investigation. 35.4 Section 35.4 Foreign Relations DEPARTMENT OF STATE CLAIMS AND STOLEN PROPERTY PROGRAM FRAUD CIVIL REMEDIES 35.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  8. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... occupational injury at the mine. Each operator of a mine shall develop a report of each investigation. No... miners are employed may, with respect to that mine, use Form 7000-1 as an investigation report respecting... investigation report conducted or prepared by MSHA to comply with this paragraph. An operator shall submit...

  9. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... investigation and report. (1) If the Director determines that the agency has conducted an adequate investigation... investigation. If the Director has reason to believe that an employee is violating or has violated any ethics provision, the Director may recommend to the head of the agency that the agency conduct such...

  10. 40 CFR 68.81 - Incident investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 15 2010-07-01 2010-07-01 false Incident investigation. 68.81 Section...) CHEMICAL ACCIDENT PREVENTION PROVISIONS Program 3 Prevention Program 68.81 Incident investigation. (a... resulted in a catastrophic release of a regulated substance. (b) An incident investigation shall...

  11. 40 CFR 68.81 - Incident investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 15 2011-07-01 2011-07-01 false Incident investigation. 68.81 Section...) CHEMICAL ACCIDENT PREVENTION PROVISIONS Program 3 Prevention Program 68.81 Incident investigation. (a... resulted in a catastrophic release of a regulated substance. (b) An incident investigation shall...

  12. 24 CFR 28.15 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... assertion of an identified privilege. (c) Investigation report. If the Inspector General or designee... submit a report containing the findings and conclusions of the investigation to the General Counsel or... submitting a report to the General Counsel to avoid interference with a criminal investigation or...

  13. 24 CFR 28.15 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... assertion of an identified privilege. (c) Investigation report. If the Inspector General or designee... submit a report containing the findings and conclusions of the investigation to the General Counsel or... submitting a report to the General Counsel to avoid interference with a criminal investigation or...

  14. 20 CFR 355.4 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... submit a report containing the findings and conclusions of such investigation to the reviewing official... 20 Employees' Benefits 1 2012-04-01 2012-04-01 false Investigation. 355.4 Section 355.4 Employees... UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 355.4 Investigation. (a) If an...

  15. 22 CFR 511.7 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 22 Foreign Relations 2 2012-04-01 2009-04-01 true Investigations. 511.7 Section 511.7 Foreign Relations BROADCASTING BOARD OF GOVERNORS FEDERAL TORT CLAIMS PROCEDURE 511.7 Investigations. The Board may request any other Federal agency to investigate a claim filed under section 2672 of the Act, or to conduct a physical or mental examination...

  16. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of 46 CFR part 4. (b) Representatives of the U.S. Geological Survey may participate in these... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Investigation procedures. 140.203...) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations 140.203 Investigation procedures....

  17. 22 CFR 35.4 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Investigation. 35.4 Section 35.4 Foreign Relations DEPARTMENT OF STATE CLAIMS AND STOLEN PROPERTY PROGRAM FRAUD CIVIL REMEDIES 35.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...

  18. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... District Commander will develop a comprehensive report, termed the Detailed Investigation Report, which... Detailed Investigation Report to the Administrator, Bridge Administration Program for review together with... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Detailed investigation....

  19. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Commander will develop a comprehensive report, termed the Detailed Investigation Report, which will... Investigation Report to the Chief, Office of Bridge Programs for review together with a recommendation of... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Detailed investigation....

  20. 28 CFR 71.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Investigation. 71.4 Section 71.4 Judicial... REMEDIES ACT OF 1986 Implementation for Actions Initiated by the Department of Justice 71.4 Investigation... Civil Remedies Act may be warranted, the investigating official shall submit a report containing...